CN109859587A - A kind of circuit element is connected and fixed device - Google Patents
A kind of circuit element is connected and fixed device Download PDFInfo
- Publication number
- CN109859587A CN109859587A CN201910219877.2A CN201910219877A CN109859587A CN 109859587 A CN109859587 A CN 109859587A CN 201910219877 A CN201910219877 A CN 201910219877A CN 109859587 A CN109859587 A CN 109859587A
- Authority
- CN
- China
- Prior art keywords
- fixed
- plate
- circuit element
- support frame
- sliding panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a kind of circuit elements to be connected and fixed device, is related to classroom auxiliary teaching device field.Including pedestal, universal wheel is arranged in base bottom, support rod is set on pedestal, support frame is set on support rod, adjustable plate is set in support frame, it is hinged between adjustable plate and support frame, positioning device is set on adjustable plate, demonstration board is set at the top of adjustable plate, several jacks are set on demonstration board, power on circuitry detection demonstration auxiliary device further includes fixed bottom plate, fixed vertical plate is set on fixed bottom plate, fixed vertical plate is two, sliding panel is set between two fixed vertical plates, sliding bar is arranged in sliding panel side, several first adjustment springs are arranged in sliding bar two sides, several pins are set on fixed bottom plate, pin is located on fixed bottom plate and fixed vertical plate opposite side.The beneficial effects of the present invention are: circuit element can more intuitively be carried out on demonstration board to demonstration operation, deepened the impression that student operates Experiment of Electrical Circuits, improved classroom teaching efficiency.
Description
Technical field
The invention mainly relates to classroom auxiliary teaching device field, specifically a kind of circuit element is connected and fixed device.
Background technique
In middle school student's physics teaching, teacher would generally guide student to carry out circuit connection in the lab, deepen student
Understanding to power on circuitry.In the prior art, teachers association is on the dais in laboratory, to battery, switch, swept resistance, light bulb,
The circuit elements such as ammeter, voltmeter are explained, and are then demonstrated to how student carries out circuit connection, after having demonstrated, are learned
The explanation taken root according to teacher, grouping carry out circuit connection patching operations.Teacher is when explaining, the circuit held due to teacher
Farther out, and sight angle is limited, causes student to be attached fixed operation to associated circuit components and recognizes for element and student's distance
Know that degree is lower, error rate is high in experiment, or even the case where have no way of doing it, classroom efficiency is low.
Summary of the invention
To solve the deficiencies in the prior art, the present invention provides a kind of circuit elements to be connected and fixed device, it is not only convenient for
It is mobile, it enhances teacher and is interacted in the explanation and operating process of circuit element with student, and can be by circuit element more
Add and intuitively carry out demonstration operation on demonstration board, to deepen the impression that student operates Experiment of Electrical Circuits, improves classroom
Efficiency of teaching.
The present invention to achieve the above object, is achieved through the following technical solutions:
A kind of circuit element is connected and fixed device, including pedestal, and the base bottom is arranged universal wheel, sets on the pedestal
Support rod is set, support frame is set on the support rod, adjustable plate is set in the support frame, between the adjustable plate and support frame
Hingedly, positioning device is set on the adjustable plate, demonstration board is set at the top of the adjustable plate, several insert is set on the demonstration board
Hole, the power on circuitry detection demonstration auxiliary device further includes fixed bottom plate, and fixed vertical plate is arranged on the fixed bottom plate, described
Fixed vertical plate is two, and sliding panel is arranged between two fixed vertical plates, and sliding bar, the cunning is arranged in the sliding panel side
Lever passes through the single fixed vertical plate far from sliding panel one end and is located at outside fixed vertical plate, and the sliding bar two sides setting is several
First adjustment spring, first adjustment spring are arranged several between fixed vertical plate and sliding panel on the fixed bottom plate
Pin, the pin are located on fixed bottom plate and fixed vertical plate opposite side.
Bearing plate is arranged in the demonstration board bottom side, and the first groove, first groove is arranged at the top of the bearing plate
The first cushion of interior setting.
The support rod includes fixed part and adjustment portion, and the second groove, the fixed part and tune are arranged in the fixed part
It is slidably connected between section portion by the second groove, the fixed part side setting adjusts bolt, and the adjusting bolt end passes through
Fixed part side wall is connected with adjustment portion.
Shell is arranged in the support bar top, and motor is arranged in the shell, shaft coupling is arranged on the output shaft of the motor
Device, the shaft coupling are arranged the first rotating bar far from motor output shaft one end, first bevel gear are arranged in first rotating bar,
Second bevel gear is arranged in the first bevel gear side, and the second bevel gear is meshed with first bevel gear, second cone
Second rotating bar is set in the centre bore of gear, rotation axis is set on second drive rod, through-hole is arranged in the case top,
The rotation axis top passes through through-hole and is connected with support frame bottom.
Auxiliary rod is set between the support rod and shell.
Be arranged the second adjustment spring on the sliding bar, second adjustment spring be located at fixed vertical plate and sliding panel it
Between.
The positioning device includes fixing bolt, and the fixing bolt passes through the articulated section phase of support frame side wall and adjustable plate
Connection.
The positioning device includes torque spring, hinged by torque spring between the support frame and adjustable plate, described
Handle is arranged in demonstration board side.
The second cushion is respectively provided in the sliding panel and the single fixed vertical plate.
The prior art is compared, the beneficial effects of the present invention are:
1, associated circuit components by being fixed between sliding panel and fixed vertical plate by the present apparatus, and passes through universal wheel entirety
It is mobile, mobile present apparatus when teacher explains is not only contributed to, enhances the interactivity between student, and can be by circuit
Element intuitively shows on demonstration board on demonstration board, thus facilitate observation of students teacher how to the connection of interlock circuit and
Operation carries out relevant presentation, has deepened the impression that student operates Experiment of Electrical Circuits, has improved classroom teaching efficiency and student to electricity
The efficiency of circuit component progress experimental implementation.
2, the setting of bearing plate and the first cushion, so that fortuitous event is occurring in circuit element, from fixed vertical plate and cunning
When being slid between movable plate, when can be slipped to the first cushion, prevents circuit element from falling damage, reduce the damage to circuit element
Evil.
3, support rod includes fixed part and adjustment portion, and the height of support rod is carried out according to teacher and classroom situation
It adjusts, further improves the flexibility that device uses.
4, the setting of motor and rotation axis can rotate demonstration board, more comprehensive convenient for testing indoor student
Intuitive observation and understanding circuit element, further improve the effect of teacher's explanation and circuit element demonstration.
5, the setting of auxiliary rod improves stability of the shell on support rod, and then improves the stabilization of device entirety
Property.
6, the second adjustment spring and the first adjustment spring cooperate, so that it is more flexible to the adjusting of sliding Board position,
Sliding panel is enhanced to the clamping dynamics of circuit element, thus by circuit element be tightly fixed to sliding panel and fixed vertical plate it
Between.
7, positioning device uses fixing bolt, so that the position of demonstration board is fixed after having adjusted, improves and drills
Show the fixed stability of plate.
8, positioning device is cooperated using torque spring and handle, so that the position of demonstration board is after being adjusted,
It can automatically reset, improve the flexibility that demonstration board uses.
9, buffer function is played in the setting of the second cushion between circuit board and sliding panel, fixed vertical plate, reduces sliding
The damage of plate and fixed vertical plate when being clamped to circuit element.
Detailed description of the invention
Attached drawing 1 is main view schematic diagram of the present invention;
Attached drawing 2 is that the present invention removes main view schematic diagram after fixed bottom plate;
Attached drawing 3 is the fixed bottom parts main view enlarged structure schematic diagram of the present invention;
Attached drawing 4 is the left view figure structure schematic representation of attached drawing 3;
Attached drawing 5 is housing interior structure schematic diagram;
Attached drawing 6 is the schematic perspective view of attached drawing 3;
The demonstration board part isometric structural schematic diagram of the present invention of attached drawing 7.
Label shown in attached drawing: 1, pedestal;2, universal wheel;3, support rod;4, support frame;5, adjustable plate;6, demonstration board;7,
Jack;8, fixed bottom plate;9, fixed vertical plate;10, sliding panel;11, sliding bar;12, the first adjustment spring;13, pin;14, it holds
Fishplate bar;15, the first groove;16, the first cushion;17, fixed part;18, adjustment portion;19, bolt is adjusted;20, shell;21, electric
Machine;22, shaft coupling;23, the first rotating bar;24, first bevel gear;25, second bevel gear;26, the second rotating bar;27, it rotates
Axis;28, through-hole;29, auxiliary rod;30, the second adjustment spring;31, fixing bolt;32, the second cushion.
Specific embodiment
With reference to the drawings and specific embodiments, the invention will be further described.It should be understood that these embodiments are merely to illustrate
The present invention rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, this field
Technical staff can make various changes or modifications the present invention, and such equivalent forms equally fall within range defined herein.
The standardized element used in the present invention can commercially, and shaped piece is according to specification and attached drawing
Record can carry out customized, and the specific connection type of each part is all made of in the prior art mature bolt, rivet, weldering
The conventional means such as connect, paste, used circuit connection is conventional model in the prior art, and this will not be detailed here.
A kind of circuit element is connected and fixed device, including pedestal 1, and universal wheel 2, the pedestal 1 is arranged in 1 bottom of pedestal
Support frame 4 is arranged on the support rod 3 for upper setting support rod 3, is arranged adjustable plate 5 in the support frame 4, the adjustable plate 5 with
It is hinged between support frame 4, positioning device is set on the adjustable plate 5, demonstration board 6 is set at the top of the adjustable plate 5, such as attached drawing 1
Shown, demonstration board is located on adjustable plate, adjustable plate around support frame it is hinged, therefore demonstration board can both show when in use it is attached
Fig. 1 state perpendicular to the ground, can also be parallel to the ground by adjusting, and flexibly carries out normal operating convenient for teacher and demonstration is said
Solution.Several jacks 7 are set on the demonstration board 6, and the power on circuitry detection demonstration auxiliary device further includes fixed bottom plate 8, institute
Setting fixed vertical plate 9 on fixed bottom plate 8 is stated, the fixed vertical plate 9 is two, and sliding is arranged between two fixed vertical plates 9
Plate 10, as shown in Fig. 6, sliding panel bottom are in contact with fixed bottom base plate, and sliding panel can basis close to fixed bottom plate side
Fixed circuit element, such as slide rheostat, ammeter are needed, the shape of sliding panel is targetedly set, so that circuit
The more firm stabilization of the fixation of element.Sliding bar 11 is arranged in 10 side of sliding panel, and the sliding bar 11 is far from sliding panel 10
One end passes through the single fixed vertical plate 9 and is located at outside fixed vertical plate 9, and 11 two sides of the sliding bar setting several first adjusts bullet
Several insert is arranged between fixed vertical plate 9 and sliding panel 10 in spring 12, first adjustment spring 12 on the fixed bottom plate 8
Foot 13, pin is inserted into jack, and fixed bottom plate is fixed on demonstration board.The pin 13 is located on fixed bottom plate 8
With 9 opposite side of fixed vertical plate.The present apparatus is passed through by the way that associated circuit components are fixed between sliding panel and fixed vertical plate
Universal wheel moves integrally, and not only contributes to mobile present apparatus when teacher explains, enhances the interactivity between student, and
Circuit element can intuitively be shown on demonstration board on demonstration board, to facilitate observation of students teacher how to mutually powered-down
The connection and operation on road carry out relevant presentation, have deepened the impression that student operates Experiment of Electrical Circuits, have improved classroom teaching efficiency
The efficiency of experimental implementation is carried out to circuit element with student.
Circuit element falls damage in order to prevent, and bearing plate 14, the bearing plate 14 is arranged in 6 bottom side of demonstration board
The first groove 15 is arranged in top, and the first cushion 16 is arranged in first groove 15.The setting of bearing plate and the first cushion,
So that fortuitous event is occurring in circuit element, when sliding between fixed vertical plate and sliding panel, the first cushion can be slipped to
When, it prevents circuit element from falling damage, reduces the damage to circuit element.
In order to improve the flexibility that device uses, the support rod 3 includes fixed part 17 and adjustment portion 18, the fixed part
Second groove is set in 17, is slidably connected between the fixed part 17 and adjustment portion 18 by the second groove, the fixed part 17
Side setting adjusts bolt 19, and in one embodiment of the invention, the adjusting bolt is wing bolt.The adjusting bolt
19 ends pass through 17 side wall of fixed part and are connected with adjustment portion 18.Support rod includes fixed part and adjustment portion, so that support rod
Height can be adjusted according to teacher and classroom situation, further improve the flexibility that device uses.
In order to enable student is more comprehensively intuitive to observe and understand circuit element, shell is set at the top of the support rod 3
Body 20, the shell 20 is interior to be arranged motor 21, shaft coupling 22 is arranged on the output shaft of the motor 21, in a reality of the invention
It applies in example, the shaft coupling is plum coupling.The first rotating bar is arranged far from 21 output shaft one end of motor in the shaft coupling 22
23, in one embodiment of the invention, rolling bearing units are arranged in enclosure interior, and first rotating bar one end is located in rolling bearing units,
Improve the stability of the first rotating bar rotation.First bevel gear 24, the first bevel gear are set in first rotating bar 23
Second bevel gear 25 is arranged in 24 sides, and the second bevel gear 25 is meshed with first bevel gear 24, the second bevel gear 25
Centre bore in the second rotating bar 26 is set, rotation axis 27 is set on second drive rod, and setting is logical at the top of the shell 20
Hole 28,27 top of rotation axis pass through through-hole 28 and are connected with 4 bottom of support frame.The setting of motor and rotation axis, can be right
Demonstration board is rotated, and is more intuitively observed and is understood circuit element comprehensively convenient for testing indoor student, further increase
The effect of teacher's explanation and circuit element demonstration.
In order to improve the stability of device entirety, auxiliary rod 29 is set between the support rod 3 and shell 20.Auxiliary rod
Setting, improves stability of the shell on support rod, and then improve the stability of device entirety.
As optimization, the second adjustment spring 30 is arranged on the sliding bar 11, second adjustment spring 30, which is located at, fixes
Between riser 9 and sliding panel 10.Second adjustment spring and the first adjustment spring cooperate, so that the adjusting to sliding Board position
It is more flexible, sliding panel is enhanced to the clamping dynamics of circuit element, so that circuit element is tightly fixed to sliding panel and is consolidated
Determine between riser.
In order to improve the fixed stability of demonstration board, in one embodiment of the invention, the positioning device includes solid
Determine bolt 31, existing pillar-bolt, wing bolt etc. can be used in fixing bolt.The fixing bolt 31 passes through 4 side of support frame
Wall is connected with the articulated section of adjustable plate 5.Positioning device uses fixing bolt, so that the position of demonstration board is solid after having adjusted
It is fixed firm, improve the fixed stability of demonstration board.
As optimization, in one embodiment of the invention, the positioning device includes torque spring, the support frame 4
Hinged by torque spring between adjustable plate 5, handle is arranged in 6 side of demonstration board.Positioning device using torque spring and
Handle cooperates, so that the position of demonstration board after being adjusted, can automatically reset, improves the spirit that demonstration board uses
Activity.
As optimization, the second cushion 32 is respectively provided in the sliding panel 10 and the single fixed vertical plate 9.Second buffering
Buffer function is played in the setting of pad between circuit board and sliding panel, fixed vertical plate, reduces sliding panel and fixed vertical plate to electricity
Damage when circuit component is clamped.
Application method:
The present apparatus when in use, pulls sliding panel by sliding bar first, circuit element is then placed on fixed bottom plate
On, sliding panel is then unclamped, under the action of the first adjustment spring, sliding panel, which automatically resets, clamps circuit element, then will insert
Foot is inserted into jack, then the position of demonstration board is adjusted by positioning device, moves integrally the present apparatus by universal wheel come to
Life is demonstrated and is explained, and is greatlyd improve on the dais of laboratory to circuit element explaining operation relative to existing teacher
Classroom efficiency.
Claims (9)
1. a kind of circuit element is connected and fixed device, including pedestal (1), it is characterised in that: pedestal (1) the bottom setting is universal
It takes turns (2), support rod (3) is set on the pedestal (1), support frame (4) are set on the support rod (3), in the support frame (4)
It is arranged adjustable plate (5), it is hinged between the adjustable plate (5) and support frame (4), positioning device is set on the adjustable plate (5), institute
It states and demonstration board (6) is set at the top of adjustable plate (5), be arranged several jacks (7) on the demonstration board (6), the power on circuitry detection
Demonstrating auxiliary device further includes fixed bottom plate (8), fixed vertical plate (9) is arranged on the fixed bottom plate (8), the fixed vertical plate
(9) it is two, sliding panel (10) is set between two fixed vertical plates (9), sliding bar is arranged in sliding panel (10) side
(11), the sliding bar (11) is located at fixed vertical plate (9) outside across the single fixed vertical plate (9) far from sliding panel (10) one end
Several first adjustment springs (12) are arranged in portion, sliding bar (11) two sides, and first adjustment spring (12) is located at fixed perpendicular
Between plate (9) and sliding panel (10), it is arranged several pins (13) on the fixed bottom plate (8), the pin (13), which is located at, fixes
On bottom plate (8) with fixed vertical plate (9) opposite side.
2. a kind of circuit element according to claim 1 is connected and fixed device, it is characterised in that: demonstration board (6) bottom
Bearing plate (14) are arranged in portion side, and the first groove (15) are arranged at the top of the bearing plate (14), set in first groove (15)
Set the first cushion (16).
3. a kind of circuit element according to claim 1 is connected and fixed device, it is characterised in that: support rod (3) packet
Fixed part (17) and adjustment portion (18) are included, the second groove, the fixed part (17) and adjustment portion are set in the fixed part (17)
(18) it is slidably connected between by the second groove, fixed part (17) the side setting adjusts bolt (19), the adjusting bolt
(19) end passes through fixed part (17) side wall and is connected with adjustment portion (18).
4. a kind of circuit element according to claim 1 or 3 is connected and fixed device, it is characterised in that: the support rod (3)
Shell (20) are arranged in top, and motor (21) are arranged in the shell (20), and shaft coupling is arranged on the output shaft of the motor (21)
(22), the shaft coupling (22) is far from motor (21) output shaft one end setting the first rotating bar (23), first rotating bar
(23) first bevel gear (24) are set on, second bevel gear (25) are arranged in first bevel gear (24) side, second cone
Gear (25) is meshed with first bevel gear (24), and the second rotating bar is arranged in the centre bore of the second bevel gear (25)
(26), rotation axis (27) are set on second drive rod, through-hole (28) are set at the top of the shell (20), the rotation axis
(27) top passes through through-hole (28) and is connected with support frame (4) bottom.
5. a kind of circuit element according to claim 4 is connected and fixed device, it is characterised in that: the support rod (3) with
Auxiliary rod (29) are set between shell (20).
6. a kind of circuit element according to claim 1 is connected and fixed device, it is characterised in that: on the sliding bar (11)
It is arranged the second adjustment spring (30), second adjustment spring (30) is located between fixed vertical plate (9) and sliding panel (10).
7. a kind of circuit element according to claim 1 is connected and fixed device, it is characterised in that: the positioning device includes
Fixing bolt (31), the fixing bolt (31) pass through support frame (4) side wall and are connected with the articulated section of adjustable plate (5).
8. a kind of circuit element according to claim 1 is connected and fixed device, it is characterised in that: the positioning device includes
Torque spring, hinged by torque spring between the support frame (4) and adjustable plate (5), handle is arranged in demonstration board (6) side
Hand.
9. a kind of circuit element according to claim 1 is connected and fixed device, it is characterised in that: the sliding panel (10) and
The second cushion (32) are respectively provided in the single fixed plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910219877.2A CN109859587A (en) | 2019-03-22 | 2019-03-22 | A kind of circuit element is connected and fixed device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910219877.2A CN109859587A (en) | 2019-03-22 | 2019-03-22 | A kind of circuit element is connected and fixed device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109859587A true CN109859587A (en) | 2019-06-07 |
Family
ID=66901590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910219877.2A Pending CN109859587A (en) | 2019-03-22 | 2019-03-22 | A kind of circuit element is connected and fixed device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109859587A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115165187A (en) * | 2022-06-27 | 2022-10-11 | 山东大学 | Visual device for clamping force of outdoor high-voltage isolating switch |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2100673U (en) * | 1990-06-01 | 1992-04-01 | 范道骅 | Electronic circuit experimental facility |
CN1493065A (en) * | 2001-01-02 | 2004-04-28 | Breadboard used for educational purposes | |
WO2007024239A1 (en) * | 2005-08-24 | 2007-03-01 | Robbins Alan R | Wheeled vehicles and control systems and methods therefor |
CN201111768Y (en) * | 2007-08-09 | 2008-09-10 | 汤勇标 | Electronic circuit experimental device |
CN205194279U (en) * | 2015-12-16 | 2016-04-27 | 冯昕妤 | Psychology teaching show board |
CN106963127A (en) * | 2017-03-24 | 2017-07-21 | 潘琦云 | It is a kind of that there is the high student's desk for holding classified storage drawer case |
CN207439734U (en) * | 2017-11-08 | 2018-06-01 | 詹绍炬 | A kind of oil sample collecting device for electric equipment |
CN108189595A (en) * | 2018-01-04 | 2018-06-22 | 许昌学院 | A kind of Portable multifunctional education skill shows device |
CN207696108U (en) * | 2017-12-12 | 2018-08-07 | 佛山市捷汇鑫精密金属有限公司 | A kind of jig |
CN208173179U (en) * | 2018-05-14 | 2018-11-30 | 辽宁铁道职业技术学院 | A kind of Students' Innovation guidance for starting businesses display board |
CN208367972U (en) * | 2018-01-20 | 2019-01-11 | 刘正学 | Panel is used in a kind of teaching of ancient Chinese prose interchangeability of Chinese characters word |
CN109345916A (en) * | 2018-12-24 | 2019-02-15 | 许昌学院 | A kind of computer information technology instructional device |
CN109378610A (en) * | 2018-11-29 | 2019-02-22 | 杨胜 | A kind of FPC connector |
-
2019
- 2019-03-22 CN CN201910219877.2A patent/CN109859587A/en active Pending
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2100673U (en) * | 1990-06-01 | 1992-04-01 | 范道骅 | Electronic circuit experimental facility |
CN1493065A (en) * | 2001-01-02 | 2004-04-28 | Breadboard used for educational purposes | |
WO2007024239A1 (en) * | 2005-08-24 | 2007-03-01 | Robbins Alan R | Wheeled vehicles and control systems and methods therefor |
CN201111768Y (en) * | 2007-08-09 | 2008-09-10 | 汤勇标 | Electronic circuit experimental device |
CN205194279U (en) * | 2015-12-16 | 2016-04-27 | 冯昕妤 | Psychology teaching show board |
CN106963127A (en) * | 2017-03-24 | 2017-07-21 | 潘琦云 | It is a kind of that there is the high student's desk for holding classified storage drawer case |
CN207439734U (en) * | 2017-11-08 | 2018-06-01 | 詹绍炬 | A kind of oil sample collecting device for electric equipment |
CN207696108U (en) * | 2017-12-12 | 2018-08-07 | 佛山市捷汇鑫精密金属有限公司 | A kind of jig |
CN108189595A (en) * | 2018-01-04 | 2018-06-22 | 许昌学院 | A kind of Portable multifunctional education skill shows device |
CN208367972U (en) * | 2018-01-20 | 2019-01-11 | 刘正学 | Panel is used in a kind of teaching of ancient Chinese prose interchangeability of Chinese characters word |
CN208173179U (en) * | 2018-05-14 | 2018-11-30 | 辽宁铁道职业技术学院 | A kind of Students' Innovation guidance for starting businesses display board |
CN109378610A (en) * | 2018-11-29 | 2019-02-22 | 杨胜 | A kind of FPC connector |
CN109345916A (en) * | 2018-12-24 | 2019-02-15 | 许昌学院 | A kind of computer information technology instructional device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115165187A (en) * | 2022-06-27 | 2022-10-11 | 山东大学 | Visual device for clamping force of outdoor high-voltage isolating switch |
CN115165187B (en) * | 2022-06-27 | 2024-04-26 | 山东大学 | Visual device for clamping force of outdoor high-voltage isolating switch |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109674209A (en) | A kind of intelligent type computer educational aid | |
CN207704665U (en) | A kind of Automation Specialty teaching experimental base | |
CN209149622U (en) | A kind of Mathematics and Applied Mathematics teaching aid | |
CN208335623U (en) | A kind of psychological education for college students publicity demonstrator | |
CN109859587A (en) | A kind of circuit element is connected and fixed device | |
CN208535478U (en) | A kind of freshman English Teaching electronics is prepared lessons the stationary fixture of plate instructional device | |
CN108479885A (en) | A kind of convenient physics experiments of high school Demonstration table of observation | |
CN216453919U (en) | Internet education multimedia lectern that stability is high | |
CN112419798B (en) | Presentation device is used in accounting computerization | |
CN214428114U (en) | Projecting apparatus is used in education and teaching speech | |
CN215126676U (en) | Collapsible easy to detach's mathematics is analytic to be used show shelf | |
CN213935297U (en) | Programming practical training device based on spread calculation | |
CN210627572U (en) | Novel show shelf for mathematical education | |
CN208554298U (en) | A kind of Physical Experiment lifting platform | |
CN210171509U (en) | Demonstration type workbench | |
CN208340762U (en) | A kind of physical experiment table convenient for operation demonstration | |
CN207718675U (en) | A kind of physical teaching aid | |
CN206446356U (en) | The special sketching board of art teaching | |
CN220691587U (en) | Pinhole imaging principle demonstration structure convenient to adjust | |
CN219559679U (en) | Experiment table | |
CN213815026U (en) | Computer teaching demonstration equipment | |
CN110070787A (en) | A kind of electrical and mechanical comprehensive experimental bench and experimental method | |
CN208542240U (en) | A kind of convenient physics experiments of high school Demonstration table of observation | |
CN216817639U (en) | High school physics interesting learning device | |
CN109677166A (en) | A kind of suspension type teachers ' teaching movable teaching board |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190607 |
|
RJ01 | Rejection of invention patent application after publication |