CN113023504B - Draw-bar box of multifunctional relay protection tester - Google Patents
Draw-bar box of multifunctional relay protection tester Download PDFInfo
- Publication number
- CN113023504B CN113023504B CN202110282143.6A CN202110282143A CN113023504B CN 113023504 B CN113023504 B CN 113023504B CN 202110282143 A CN202110282143 A CN 202110282143A CN 113023504 B CN113023504 B CN 113023504B
- Authority
- CN
- China
- Prior art keywords
- box
- spiral spring
- mounting
- pivot
- rotating shaft
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/48—Automatic re-storing devices
- B65H75/486—Arrangements or adaptations of the spring motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/40—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable
- B65H75/42—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools, machines or vehicles
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to the technical field of relay protection testers, in particular to a multifunctional relay protection tester draw-bar box which comprises a box body and a test line storage device, wherein two vertical draw bars are fixedly arranged at the top of the box body, at least one test line storage device is fixedly arranged between the two draw bars, the test line storage device comprises a rotating shaft, at least two winding drums are fixedly arranged in the middle of the rotating shaft, each winding drum is wound with a test line, a spiral spring mounting box is arranged at the right end of the rotating shaft, a spiral spring is arranged in the spiral spring mounting box, a locking nut is connected at the left end of the rotating shaft in a threaded manner, and a plurality of universal casters are arranged at the bottom of the box body. According to the invention, the test wire storage device is arranged between the pull rods on the box body, and the universal castor is arranged at the bottom of the box body, so that the purposes of conveniently moving the relay protection tester and rapidly using or arranging the test wire are realized, the labor intensity of operators is reduced, and the device has the advantages of convenience, labor saving and high efficiency.
Description
Technical Field
The invention relates to the technical field of relay protection testers, in particular to a multifunctional relay protection tester draw-bar box.
Background
The test wiring of the traditional relay protection tester is generally stored by adopting a special wire box (bag), and after each test is finished, the used test wire is manually collected and orderly placed; meanwhile, the relay protection tester is heavy in quality and inconvenient to move in the use process. These two conditions cause work efficiency to decrease, and equipment damage risk increases, is unfavorable for on-the-spot work to develop.
Disclosure of Invention
The invention provides a multifunctional relay protection tester draw-bar box, which overcomes the defects of the prior art, and can effectively solve the problems of inconvenient movement, troublesome wire winding of test wires, low working efficiency of operators and high labor intensity of the traditional relay protection tester.
The technical scheme of the invention is realized by the following measures: the utility model provides a multi-functional relay protection tester draw-bar box, includes box and test line storage device, interval fixed mounting has two vertical pull rods about the box top, and a horizontal pole fixed connection is in the same place at the top of two pull rods, corresponds between two pull rods of horizontal pole below position fixed mounting have at least one test line storage device, test line storage device is including rotating the pivot of installing between two pull rods, and pivot mid-mounting has two at least take-up reels, all winds on each take-up reel and is equipped with the test line, and the pivot right-hand pull rod that passes the right-hand pull rod, corresponds the right-hand pull rod right side fixed mounting of pivot right-hand member position and has a spiral spring mounting box, and spiral spring mounting box cover is equipped with a spiral spring in the pivot right-hand member outside in the spiral spring mounting box, and spiral spring's inner wall fixed connection corresponds the outer end and spiral spring mounting box, and the pivot left end passes the pull rod of left side, has a spiral nut on the outside of corresponding left side position, corresponds the right side and is equipped with a universal handle in the pivot mounting block, and is equipped with a plurality of locating holes in the handle in the corresponding position of the right-hand side position, and is equipped with the universal joint hole in the handle box, and is equipped with the locating block in the top is equipped with the locating hole in the position of the handle.
The following are further optimizations and/or improvements to the above-described inventive solution:
above-mentioned take-up reel can include the cover in epaxial reel, both ends respectively are equipped with a baffle about the reel, be equipped with the through wires hole that link up from top to bottom on the reel, be equipped with a through-hole in the pivot that corresponds the through wires hole position, in test wire middle part wears to locate through wires hole and the through-hole, the test wire is around locating the reel outside between left end baffle and the right-hand member baffle along same direction, be equipped with the screw mounting hole on the section of thick bamboo wall of the reel that corresponds the through wires hole left side position, be equipped with the screw hole in the pivot that corresponds the screw mounting hole position, the reel is through wearing to locate the screw mounting hole and the holding screw fixed mounting in the pivot in screw hole.
The middle part of the right end of the rotating shaft corresponding to the right side position of the limiting outer ring table can be provided with a first clamping groove which is penetrated from front to back, the inner wall of the volute spring mounting box is provided with a mounting boss, the mounting boss is provided with a second clamping groove with one side open, the inner end of the volute spring is fixedly arranged in the first clamping groove, and the outer end of the volute spring is fixedly arranged in the second clamping groove.
Two test wire storage devices can be fixedly installed between the two pull rods, and two winding drums are fixedly installed on the rotating shaft of each test wire storage device.
The box body can be of a rectangular hollow cavity structure with an opening at the rear side, the rear cover is arranged on the rear side of the box body, and the universal castor is fixedly arranged on four corners of the bottom of the box body.
The invention has reasonable and compact structure and convenient use, and the universal castor is arranged at the bottom of the box body by arranging the test line storage device between the pull rods on the box body, thereby realizing the purpose of conveniently moving the relay protection tester, also realizing the purpose of quickly using or arranging the test line, reducing the labor intensity of operators and having the advantages of simplicity, labor saving and high efficiency.
Drawings
Fig. 1 is a schematic view of a partial sectional structure of a preferred embodiment of the present invention.
Fig. 2 is a right-side view of fig. 1.
Fig. 3 is an enlarged schematic view of the structure a in fig. 1.
Fig. 4 is an enlarged schematic view of the structure at B in fig. 2.
The codes in the drawings are respectively: the test device comprises a box body 1, a pull rod 2, a cross rod 3, a rotating shaft 4, a test wire 5, a spiral spring mounting box 6, a spiral spring 7, a locking nut 8, a universal caster 9, a winding reel 10, a baffle 11, a set screw 12, a limit outer ring table 13, a first clamping groove 14, a mounting boss 15, a second clamping groove 16, a rear cover 17, a handle 18, a mounting block 19 and a pin shaft 20.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described below with reference to examples and figures:
as shown in figures 1, 2, 3 and 4, the multifunctional relay protection tester draw-bar box comprises a box body 1 and test wire 5 storage devices, wherein two vertical draw bars 2 are fixedly arranged at left and right intervals at the top of the box body 1, the tops of the two draw bars 2 are fixedly connected together through a cross bar 3, at least one test wire 5 storage device is fixedly arranged between the two draw bars 2 corresponding to the lower position of the cross bar 3, the test wire 5 storage devices comprise a rotating shaft 4 rotatably arranged between the two draw bars 2, at least two winding drums are fixedly arranged in the middle of the rotating shaft 4, each winding drum is wound with a test wire 5, the right end of the rotating shaft 4 penetrates through the right draw bar 2, a volute spring mounting box 6 is fixedly arranged on the right side of the right draw bar 2 corresponding to the right end position of the rotating shaft 4, the volute spring mounting box 6 is sleeved outside the right end of the rotating shaft 4, a spiral spring 7 is arranged in the spiral spring mounting box 6, the inner end of the spiral spring 7 is fixedly connected with the right end of the rotating shaft 4, the outer end of the spiral spring 7 is fixedly connected with the inner wall of the spiral spring mounting box 6, the left end of the rotating shaft 4 passes through the left pull rod 2, a locking nut 8 is screwed on the outer side of the rotating shaft 4 corresponding to the left side position of the left pull rod 2, a limiting outer ring table 13 is arranged on the outer side of the rotating shaft 4 corresponding to the right side position of the right pull rod 2, a plurality of universal casters 9 are arranged at the bottom of the box 1, a lifting handle is arranged at the top of the box 1 corresponding to the rear position of the pull rod 2, the lifting handle comprises a handle 18, mounting blocks 19 fixedly mounted at the top of the box 1 are respectively arranged at the left end and the right end of the handle 18, a left through positioning hole and a mounting hole are arranged in the middle of the mounting block 19, a mounting hole is arranged on the handle 18 corresponding to the position of the positioning hole, the handle 18 is rotatably mounted on the mounting block 19 by a pin 20 which is inserted into the mounting hole and the positioning hole.
According to the requirement, the pull rod 2 and the box body 1 are made of aluminum alloy materials, when the relay protection tester is placed in the box body 1, the relay protection tester is moved to a working position by pulling the cross rod 3, the locking nut 8 is loosened, then the test wire 5 is pulled out from the test wire 5 storage device, in the pulling process, the test wire 5 drives the rotating shaft 4 to rotate, so that the volute spring 7 deforms, the volute spring 7 also applies a force for enabling the rotating shaft 4 to rotate to the rotating shaft 4, the locking nut 8 is tightened again to prevent rotation, one end of the test wire 5 is connected with the relay protection tester, the other end of the test wire 5 is connected with a test piece to be tested, after the test is finished, the connection of the two ends of the test wire 5 is disconnected, the locking nut 8 is loosened, the rotating shaft 4 drives the winding drum to rotate under the action of the volute spring 7, and then the test wire 5 is wound on the winding drum, and storage of the test wire 5 is completed. The invention has reasonable and compact structure and convenient use, and the universal castor 9 is arranged at the bottom of the box body 1 and the handle is arranged at the top of the box body 1 by installing the test line 5 storage device between the pull rods 2 on the box body 1, thereby not only realizing the purpose of conveniently moving the relay protection tester, but also realizing the purpose of quickly using or arranging the test line 5, reducing the labor intensity of operators and having the advantages of simplicity, labor saving and high efficiency.
The draw-bar box of the multifunctional relay protection tester can be further optimized or/and improved according to actual needs:
as shown in fig. 1 and 3, the winding roll comprises a winding reel 10 sleeved on a rotating shaft 4, two baffles 11 are respectively arranged at the left end and the right end of the winding reel 10, a threading hole penetrating up and down is arranged on the winding reel 10, a through hole is arranged on the rotating shaft 4 corresponding to the threading hole, the middle part of a test wire 5 is arranged in the threading hole and the through hole in a penetrating manner, the test wire 5 winds the outer side of the winding reel 10 between the left baffle 11 and the right baffle 11 along the same direction, a screw mounting hole is arranged on the wall of the winding reel 10 corresponding to the left side of the threading hole, a threaded hole is arranged on the rotating shaft 4 corresponding to the screw mounting hole, and the winding reel 10 is fixedly arranged on the rotating shaft 4 through a set screw 12 penetrating through the screw mounting hole and being screwed into the threaded hole. According to the requirement, the test wire 5 is wound on the outer side of the winding reel 10 along the direction opposite to the spiral direction of the spiral spring 7, so that when the test wire 5 is extracted outwards, the spiral spring 7 deforms to expand outwards, and a larger revolving force is applied to the rotating shaft 4, so that the test wire 5 can be conveniently and automatically collected after the test is finished.
As shown in fig. 2 and 4, a first clamping groove 14 penetrating from front to back is arranged in the middle of the right end of the rotating shaft 4 corresponding to the right side of the limiting outer ring table 13, an installation boss is arranged on the inner wall of the volute spring installation box 6, a second clamping groove 16 with one side open is arranged on the installation boss, the inner end of the volute spring 7 is fixedly arranged in the first clamping groove 14, and the outer end of the volute spring 7 is fixedly arranged in the second clamping groove 16. The first clamping groove 14 and the second clamping groove 16 are arranged to facilitate fixing the spiral spring 7.
As shown in fig. 1, two test wire 5 storage devices are fixedly installed between the two pull rods 2, and two winding drums are fixedly installed on the rotating shaft 4 of each test wire 5 storage device. By arranging two test wire 5 storage devices, the problem that the working time is delayed due to the fact that no standby wire exists after the test wire 5 on one test wire 5 storage device is damaged is avoided.
As shown in fig. 1 and 2, the box 1 is a rectangular hollow cavity structure with an opening at the rear side, a rear cover 17 is arranged at the rear side of the box 1, and universal casters 9 are fixedly arranged at four corners of the bottom of the box 1. In the moving process, the relay protection tester is arranged in the cavity of the box body 1, and then the rear cover 17 is arranged on the box body 1, so that the relay protection tester is prevented from falling off in the moving process; when in use, the rear cover 17 is opened, and the test wire 5 is connected with the relay protection tester.
The technical characteristics form the optimal embodiment of the invention, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (3)
1. The utility model provides a multifunctional relay protection tester draw-bar box, characterized by includes box and test line storage device, the box top is controlled the interval fixed mounting and is had two vertical pull rods about, the top of two pull rods is through a horizontal pole fixed connection together, fixed mounting has at least one test line storage device between two pull rods of corresponding horizontal pole below position, test line storage device is including rotating the pivot of installing between two pull rods, pivot mid-mounting has at least two take-up reels, each take-up reel is last all around being equipped with test line, the pivot right-hand member passes the pull rod of right side, the right side of the pull rod of the right side of corresponding pivot right-hand member position is fixed mounting and is had a spiral spring mounting box, spiral spring mounting box cover is installed in the pivot right-hand member outside, be equipped with a spiral spring in the spiral spring mounting box, spiral spring's inner and pivot right-hand member fixed connection, spiral spring's outer end and spiral spring mounting box's inner wall fixed connection, the pivot left end passes a left side on the pivot outside of corresponding left pull rod left side position is equipped with a spiral nut on the outside the pivot outside of corresponding left side position, be equipped with a plurality of universal wire reel mounting block, be equipped with the pivot mounting block is equipped with a universal reel mounting hole in the pivot of the position of corresponding to the pivot top of the right side of the box, be equipped with a universal reel mounting block is equipped with a lug boss, the lug boss is equipped with a lug boss in the locating hole in the top position of the lug boss, the lug boss is equipped with the lug boss, a through hole is formed in a rotating shaft corresponding to the threading hole, the middle of a test wire penetrates through the threading hole and the through hole, the test wire winds around the outer side of a winding reel between a left end baffle and a right end baffle along the same direction, a screw mounting hole is formed in the wall of the winding reel corresponding to the left side of the threading hole, a threaded hole is formed in the rotating shaft corresponding to the screw mounting hole, the winding reel is fixedly mounted on the rotating shaft through a set screw penetrating through the screw mounting hole and being screwed into the threaded hole, a first clamping groove penetrating through the middle of the right end of the rotating shaft corresponding to the right side of the limiting outer ring table is formed in the right end of the rotating shaft, a mounting boss is arranged on the inner wall of a spiral spring mounting box, a second clamping groove with one side open is formed in the mounting boss, the inner end of the spiral spring is fixedly mounted in the first clamping groove, and the outer end of the spiral spring is fixedly mounted in the second clamping groove.
2. The multifunctional relay protection tester draw-bar box according to claim 1, wherein two test wire storage devices are fixedly installed between the two draw bars, and two winding drums are fixedly installed on rotating shafts of each test wire storage device.
3. The draw-bar box of the multifunctional relay protection tester according to claim 1 or 2, wherein the box body is of a rectangular hollow cavity structure with an opening at the rear side, a rear cover is arranged at the rear side of the box body, and universal casters are fixedly arranged at four corners of the bottom of the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110282143.6A CN113023504B (en) | 2021-03-16 | 2021-03-16 | Draw-bar box of multifunctional relay protection tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110282143.6A CN113023504B (en) | 2021-03-16 | 2021-03-16 | Draw-bar box of multifunctional relay protection tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113023504A CN113023504A (en) | 2021-06-25 |
| CN113023504B true CN113023504B (en) | 2023-06-23 |
Family
ID=76471099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110282143.6A Active CN113023504B (en) | 2021-03-16 | 2021-03-16 | Draw-bar box of multifunctional relay protection tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113023504B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866459B (en) * | 2021-07-29 | 2024-04-09 | 江苏昆山通用电气有限公司 | Line box for relay protection test |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976260A (en) * | 1975-02-07 | 1976-08-24 | Grantham & Oleson, Inc. | Transportable cable reel |
| JP3202609U (en) * | 2015-06-24 | 2016-02-12 | 勁茂企業有限公司 | Mobile phone terminal support frame combined with dual pull cord reel |
| CN210763751U (en) * | 2019-10-31 | 2020-06-16 | 云南电网有限责任公司昆明供电局 | Telescopic relay protection testing line device |
| CN214527452U (en) * | 2021-03-16 | 2021-10-29 | 国网新疆电力有限公司哈密供电公司 | Relay protection tester draw-bar box with wire winding function |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11335006A (en) * | 1998-05-25 | 1999-12-07 | Matsushita Electric Ind Co Ltd | Cord winding device and electrical equipment using the same |
| JP4129348B2 (en) * | 2000-06-06 | 2008-08-06 | トヨクニ電線株式会社 | Extra length winder for optical fiber cable |
| US7116883B2 (en) * | 2004-11-19 | 2006-10-03 | Fiber Optic Protection Systems, Inc. | Fiber optic protective carrier |
| CN203229270U (en) * | 2013-04-24 | 2013-10-09 | 国家电网公司 | Auto-winding winder |
| CN204188662U (en) * | 2014-09-11 | 2015-03-04 | 中国南方电网有限责任公司超高压输电公司广州局 | A kind of telescopic reaying protection test line draw off gear |
| CN105789946A (en) * | 2014-12-16 | 2016-07-20 | 国家电网公司 | Ground wire insertion type automatic winding apparatus |
| CN204737508U (en) * | 2015-06-23 | 2015-11-04 | 辽宁陆发机械装备制造有限公司 | Automatic rolling bobbin |
| CN205034902U (en) * | 2015-07-20 | 2016-02-17 | 深圳安科高技术股份有限公司 | Cable -winding device |
| CN207965809U (en) * | 2017-12-06 | 2018-10-12 | 新昌县科畅科技咨询有限公司 | Keyboard with coiling function |
| CN108584558A (en) * | 2018-02-07 | 2018-09-28 | 周丽玲 | A kind of line concentrator for power equipment maintaining |
| CN208790941U (en) * | 2018-07-06 | 2019-04-26 | 国家电网公司 | A kind of two-way telescopic reaying protection test line storage tool box |
| CN208820330U (en) * | 2018-07-31 | 2019-05-03 | 国网冀北电力有限公司张家口供电公司 | Substation's protective relaying device |
| CN110155819A (en) * | 2019-06-06 | 2019-08-23 | 山东申融电气科技股份有限公司 | Field automatic deploying and retracting line apparatus |
| CN210973437U (en) * | 2019-10-25 | 2020-07-10 | 德赐(无锡)线束系统有限公司 | Rapid test station capable of simultaneously detecting multiple persons |
| CN111302159A (en) * | 2020-01-21 | 2020-06-19 | 国网湖北省电力有限公司咸宁供电公司 | Movable protection debugging folding leg |
-
2021
- 2021-03-16 CN CN202110282143.6A patent/CN113023504B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976260A (en) * | 1975-02-07 | 1976-08-24 | Grantham & Oleson, Inc. | Transportable cable reel |
| JP3202609U (en) * | 2015-06-24 | 2016-02-12 | 勁茂企業有限公司 | Mobile phone terminal support frame combined with dual pull cord reel |
| CN210763751U (en) * | 2019-10-31 | 2020-06-16 | 云南电网有限责任公司昆明供电局 | Telescopic relay protection testing line device |
| CN214527452U (en) * | 2021-03-16 | 2021-10-29 | 国网新疆电力有限公司哈密供电公司 | Relay protection tester draw-bar box with wire winding function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113023504A (en) | 2021-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209815385U (en) | Tension adjusting mechanism for winding machine | |
| CN113023504B (en) | Draw-bar box of multifunctional relay protection tester | |
| CN108551009B (en) | Grounding wire suspension device | |
| CN214527452U (en) | Relay protection tester draw-bar box with wire winding function | |
| CN111606149A (en) | Electric power construction paying out machine constructs | |
| CN210339961U (en) | Pay-off rack for construction site of building construction | |
| CN218728211U (en) | Optical divider fixing base | |
| CN111137736B (en) | Automatic take-up device for power grid detection | |
| CN210896769U (en) | Wire barrow for cable processing | |
| CN210130144U (en) | Fruit picking device | |
| CN210559207U (en) | Hanging flower basket device that crane high altitude construction used | |
| CN213674065U (en) | Lightning protection detection tool box | |
| CN112141883A (en) | Hoisting device for power equipment and hoisting method thereof | |
| CN213202185U (en) | Auxiliary tool for installing and hanging additional line of contact net | |
| CN216997029U (en) | Vertical pay-off rack capable of being assembled and disassembled quickly | |
| CN218731777U (en) | Grounding wire device for overhauling ultrahigh voltage transmission line | |
| CN220160855U (en) | Intelligent dust suppression equipment for building construction | |
| CN219116852U (en) | Prevent general rubber cover cable reel for flexible cable wire of roll | |
| CN221116496U (en) | Tension adjusting device for wire and cable processing | |
| CN220664520U (en) | Positioning mechanism for rotary disc type pay-off rack | |
| CN210117120U (en) | Rodless ground wire frame | |
| CN215737576U (en) | Portable draft holder of real estate survey and drawing | |
| CN210795314U (en) | Geophysical prospecting bobbin | |
| CN220051285U (en) | Rotatory pay off rack grinding device | |
| CN212567177U (en) | Measuring device for building economy measurement and calculation |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |