CN215722198U - Simple expansion piece - Google Patents
Simple expansion piece Download PDFInfo
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- CN215722198U CN215722198U CN202122128019.2U CN202122128019U CN215722198U CN 215722198 U CN215722198 U CN 215722198U CN 202122128019 U CN202122128019 U CN 202122128019U CN 215722198 U CN215722198 U CN 215722198U
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- telescopic rod
- convex ring
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- rollers
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Abstract
The utility model discloses a simple expansion piece, which relates to the technical field of marine equipment and aims to solve the problems of limited installation positions and poor installation stability of components such as a signal receiver of underwater equipment, and the technical scheme is as follows: the telescopic device comprises an inner telescopic rod, an outer telescopic rod and a rolling assembly, wherein the inner telescopic rod is connected in the outer telescopic rod in a sliding manner and is guided to slide by the rolling assembly; the inner side of the lower end of the outer telescopic rod is provided with an inner convex ring, the lower end of the inner telescopic rod penetrates through the inner convex ring and extends out of the outer telescopic rod, the upper end of the inner telescopic rod is provided with an outer convex ring, and the outer convex ring is abutted against the inner convex ring and used for limiting the telescopic stroke of the inner telescopic rod. The utility model improves the installation stability of the sensor equipment, ensures the stable operation in the operation process and improves the stability of signal receiving and transmission.
Description
Technical Field
The utility model relates to the technical field of marine equipment, in particular to a simple expansion piece.
Background
Various signal receiving and transmitting devices are required to be installed on the underwater equipment to obtain various required signals; the signal receiver and other parts applied to the underwater equipment have certain installation requirements, a certain distance needs to be kept between the signal receiver and other parts and the underwater equipment, and the interference of the noise on the water surface to the signal generated by the signal receiver is reduced, so that the integrity and the accuracy of signal transmission are ensured.
Due to the fact that the underwater equipment is suitable for the special working condition of the environment, under many conditions, the requirement on the overall dimension of the underwater equipment is high, the installation space is limited, and the underwater equipment cannot be installed and connected through rigid connecting pieces; at present, signal receivers are often connected by flexible connecting pieces, and the signal receivers can form a certain distance by falling of the deadweight of the receivers; however, in the connection and use process of the flexible connecting piece, the signal receiver and other parts are easy to fluctuate due to underwater ocean current movement, the overall installation stability is poor, signal interruption or data loss is caused, and the normal work of the equipment is influenced.
Therefore, a new solution is needed to solve this problem.
SUMMERY OF THE UTILITY MODEL
The present invention aims to solve the above problems by providing a simple telescopic device, which improves the installation stability of sensor equipment, ensures stable operation during operation, and improves the stability of signal reception and transmission.
The technical purpose of the utility model is realized by the following technical scheme: a simple expansion piece comprises an inner expansion rod, an outer expansion rod and a rolling assembly, wherein the inner expansion rod is connected in the outer expansion rod in a sliding mode and is guided to slide through the rolling assembly; the inner side of the lower end of the outer telescopic rod is provided with an inner convex ring, the lower end of the inner telescopic rod penetrates through the inner convex ring and extends out of the outer telescopic rod, the upper end of the inner telescopic rod is provided with an outer convex ring, and the outer convex ring is abutted against the inner convex ring and used for limiting the telescopic stroke of the inner telescopic rod.
The utility model is further provided that the outer circumferential profile of the outer collar is adapted to the inner cavity of the outer telescopic rod, and the outer collar is slidably connected inside the outer telescopic rod.
The utility model is further provided that the inner diameter profile of the inner collar is adapted to the outer periphery of the inner telescopic rod, and the inner telescopic rod is connected to the inner side of the inner collar in a sliding manner.
The utility model is further arranged such that the rolling assembly comprises a plurality of rollers.
The utility model is further provided that the periphery of the outer convex ring is provided with a plurality of rolling grooves which are matched with the rollers in a rolling way, the rollers are arranged in the rolling grooves, and the roller parts extend out of the rolling grooves and are matched with the inner walls of the outer telescopic rods in a rolling way.
The utility model is further provided that a plurality of through holes which are matched with the rollers in a rolling way are arranged on the inner periphery of the inner convex ring, the rollers are arranged in the through holes, and the roller parts extend out of the through holes and are matched with the outer wall of the inner telescopic rod in a rolling way.
The utility model is further provided that the through hole extends outwards to penetrate through the outer telescopic rod, the outer end of the through hole is provided with internal threads, the outer end of the through hole is connected with a threaded piece used for limiting the roller in a threaded mode, and one end of the threaded piece extends towards the inner end of the through hole and is abutted against the roller.
The utility model is further configured such that the rollers are steel balls.
The utility model is further provided that the upper end of the outer telescopic rod is in threaded connection with a nut, and the nut is used for being connected with underwater equipment.
In conclusion, the utility model has the following beneficial effects:
the telescopic device can effectively solve the problem that the whole length of a sensor mounting structure of underwater equipment is limited, has a certain displacement amount, is convenient to mount and apply, realizes indirect rigid connection by using the telescopic device for the upper part and the lower part, ensures the stability of transmission of parts such as a signal receiver and the like, and avoids data loss caused by underwater ocean current motion of the parts such as the signal receiver and the like.
The inner telescopic rod and the outer telescopic rod form a rolling connection structure through the steel balls, the sensitivity is high, the movement is stable, the creeping phenomenon is not easy to occur in the telescopic process, and the inner rod can be freely stretched;
the steel ball is infinitely circulated between the inner telescopic rod and the outer telescopic rod in a rolling matching mode, so that the sliding friction between the inner telescopic rod and the outer telescopic rod is changed into rolling friction, the movement is light, the abrasion is small, the precision maintaining performance is good, and the application purpose is achieved by the simplest mechanical structure.
Drawings
FIG. 1 is a first schematic structural view of a simple retractor according to the present invention;
FIG. 2 is a second schematic structural view of a simple retractor according to the present invention;
fig. 3 is a schematic view of a telescopic mounting structure of an underwater sensor of the present invention.
Reference numerals: 1. an inner telescoping rod; 2. an outer telescopic rod; 3. a roller; 4. an inner collar; 5. an outer convex ring; 6. a rolling groove; 7. a through hole; 8. a threaded member; 9. a nut; 10. a support frame; 11. a sensor; 12. an underwater apparatus.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment discloses a simple telescopic device, which is shown in fig. 1-3 and comprises an inner telescopic rod 1, a hollow outer telescopic rod 2 and a rolling assembly, wherein the inner telescopic rod 1 is connected in the outer telescopic rod 2 in a sliding manner and is guided to slide by the rolling assembly; the inner telescopic rod 1 can be cylindrical, an inner convex ring 4 is integrally formed on the inner side of the lower end of the outer telescopic rod 2, the lower end of the inner telescopic rod 1 penetrates through the inner convex ring 4 and extends out of the outer telescopic rod 2, the inner diameter profile of the inner convex ring 4 is matched with the periphery of the inner telescopic rod 1, and the inner telescopic rod 1 can freely and smoothly slide on the inner side of the inner convex ring 4; an outer convex ring 5 is integrally connected to the upper end of the inner telescopic rod 1, the outer diameter of the outer convex ring 5 is larger than the inner diameter of the inner convex ring 4, and the outer convex ring 5 abuts against the inner convex ring 4 in the telescopic sliding process of the inner telescopic rod 1 to limit the telescopic stroke of the inner telescopic rod 1; the inner telescopic rod 1 is kept to have a certain length and is positioned in the outer telescopic rod 2 all the time, and the connection rigidity strength of the inner telescopic rod 1 and the outer telescopic rod 2 can be kept.
The outer periphery profile of evagination ring 5 and the adaptation of 2 inner chambers of outer telescopic link, including the flexible in-process of telescopic link 1, evagination ring 5 can with outer telescopic link 2 sliding fit, guide the flexible slip of inner telescopic link 1, keep the flexible stability of inner telescopic link 1.
In order to facilitate the installation and connection of the outer telescopic rod 2, a nut 9 is connected to the upper end of the outer telescopic rod 2 in a threaded manner, and an equipment fixing point is formed at the upper end of the outer telescopic rod 2.
The rolling assembly comprises a plurality of rollers 3, the rollers 3 are divided into two parts, one part is positioned on the outer periphery of the outer convex ring 5, the other part is positioned on the inner periphery of the inner convex ring 4, and a plurality of axial positions are formed between the inner telescopic rod 1 and the outer telescopic rod 2 for rolling support, so that the telescopic stability of the inner telescopic rod 1 and the outer telescopic rod 2 can be kept, the swinging caused by the axial deviation of the inner telescopic rod 1 is reduced, and the abrasion generated in the telescopic process of the inner telescopic rod 1 is reduced.
The roller 3 can adopt steel balls with good wear resistance, a part of the roller 3 is arranged on the periphery of the outer convex ring 5, a plurality of rolling grooves 6 are uniformly formed on the periphery of the outer convex ring 5, the rolling grooves 6 are matched with the steel balls in a rolling manner, the steel balls can keep free rolling after being arranged in the rolling grooves 6, most of the steel balls are embedded into the rolling grooves 6, the position of the steel balls can be kept basically stable, and the part of the steel balls extend out of the rolling grooves 6 and are matched with the inner wall of the outer telescopic rod 2 in a rolling manner;
the other part of the rollers 3 are arranged on the inner periphery of the inner convex ring 4, a plurality of through holes 7 are formed in the inner periphery of the inner convex ring 4, the aperture of each through hole 7 is slightly larger than that of each steel ball, the steel balls can keep free rolling after being arranged in the through holes 7, and the part of the rollers 3 extends out of the through holes 7 and is in rolling fit with the outer wall of the inner telescopic rod 1; the through hole 7 can extend outwards to penetrate through the outer telescopic rod 2 to form a through channel, internal threads are processed at the outer end of the through hole 7, an inner hexagonal concave end holding screw is connected to the outer end of the through hole 7 in a threaded manner and serves as a threaded part 8, the position of the outer end of the through hole 7 can be blocked, and the position of a steel ball is limited; one end of the threaded part 8 extends towards the inner end of the through hole 7 and is abutted against the roller 3, so that the roller 3 can be stably positioned in the through hole 7, and the telescopic rod 1 can roll and slide in the telescopic way.
In order to improve the guiding stability, three circles of through holes 7 distributed annularly can be processed and formed at the inner convex ring 4 of the outer telescopic rod 2, and corresponding steel balls and inner hexagonal concave end set screws are installed in the through holes 7, so that a more stable guiding and supporting structure can be formed at the position.
The inner telescopic rod 1 and the outer telescopic rod 2 form rolling fit, so that the stability and the smoothness in the telescopic process are improved, and the abrasion generated in the telescopic process is reduced; because of the rolling limitation of the steel balls, the inner telescopic rod 1 and the outer telescopic rod 2 are matched tightly, the sliding friction is small, the operation is stable, and the safety and reliability are improved to a certain degree.
The embodiment also discloses a telescopic mounting structure of the underwater sensor 11, which comprises a cross-shaped support frame 10 and four retractors, wherein the support frame 10 is mounted at the lower part of the underwater equipment 12 through the retractors; four expansion bend are installed respectively in four ends of cross support frame 10, and 2 upper ends of the outer telescopic link of expansion bend pass through screw thread or nut 9 fixed mounting in underwater equipment 12, and 1 lower extreme of the inner telescopic link of expansion bend stretches out underwater equipment 12 to in support frame 10 fixed connection, on 11 installation and the support frame 10 of the underwater sensor that will need the installation, realize that the lift installation of 11 underwater sensor is fixed.
In an initial state of using the equipment, the equipment is in a static state, the inner telescopic rod 1 is retracted into the cavity of the outer telescopic rod 2 to form a short length, the outer telescopic rod 2 is installed in the underwater equipment 12, and only the end part of the lower end of the inner telescopic rod 1 is exposed outside;
after the equipment is distributed in water, the whole telescopic device is in a vertical state, the inner telescopic rod 1 is driven to descend under the assistance of gravity of the mooring device, the inner telescopic rod 1 and the outer telescopic rod 2 are rolled and guided by steel balls, the inner telescopic rod 1 runs downwards from the outer telescopic rod 2, the stretching function is further realized, a sensor 11 and a support frame 10 which are arranged at the lower end position of the inner telescopic rod 1 can keep a certain distance with the equipment main body, and the telescopic device keeps rigid fixation;
after the equipment is recovered, the inner telescopic rod 1 is manually driven to move upwards, the inner telescopic rod 1 is retracted into the outer telescopic rod 2, the retraction function is further realized, and the whole operation process is finished.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (9)
1. The simple expansion piece is characterized by comprising an inner expansion rod (1), an outer expansion rod (2) and a rolling assembly, wherein the inner expansion rod (1) is connected in the outer expansion rod (2) in a sliding manner and is guided to slide through the rolling assembly; the telescopic rod is characterized in that an inner convex ring (4) is arranged on the inner side of the lower end of the outer telescopic rod (2), the lower end of the inner telescopic rod (1) penetrates through the inner convex ring (4) and extends out of the outer telescopic rod (2), an outer convex ring (5) is arranged at the upper end of the inner telescopic rod (1), and the outer convex ring (5) is abutted to the inner convex ring (4) and used for limiting the telescopic stroke of the inner telescopic rod (1).
2. A simple telescopic device according to claim 1, characterized in that the outer ring (5) has a peripheral profile adapted to the inner cavity of the outer telescopic rod (2), said outer ring (5) being slidably connected inside the outer telescopic rod (2).
3. A simple telescopic device according to claim 1, characterized in that the inner diameter of the inner collar (4) is configured to fit the outer circumference of the inner telescopic rod (1), and the inner telescopic rod (1) is slidably connected to the inner side of the inner collar (4).
4. A simple retractor according to claim 1 wherein said rolling assembly comprises a plurality of rollers (3).
5. The simple expansion device according to claim 4, wherein the outer circumference of the outer convex ring (5) is provided with a plurality of rolling grooves (6) which are adapted to the rollers (3) in a rolling manner, the rollers (3) are arranged in the rolling grooves (6), and the rollers (3) partially extend out of the rolling grooves (6) and are matched with the inner wall of the outer telescopic rod (2) in a rolling manner.
6. The simple expansion piece according to claim 4, characterized in that the inner circumference of the inner collar (4) is provided with a plurality of through holes (7) which are adapted to the rollers (3) in a rolling manner, the rollers (3) are arranged in the through holes (7), and part of the rollers (3) extend out of the through holes (7) and are matched with the outer wall of the inner telescopic rod (1) in a rolling manner.
7. The simple telescopic device according to claim 6, wherein the through hole (7) extends outwards to penetrate through the outer telescopic rod (2), the outer end of the through hole (7) is provided with internal threads, the outer end of the through hole (7) is connected with a threaded piece (8) used for limiting the roller (3) in a threaded mode, and one end of the threaded piece (8) extends towards the inner end of the through hole (7) and abuts against the roller (3).
8. A simple telescopic device according to claim 4, characterized in that said roller (3) is a steel ball.
9. A simple telescopic device according to claim 1, characterized in that the upper end of the outer telescopic rod (2) is screwed with a nut (9), said nut (9) being used for connection with underwater equipment (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122128019.2U CN215722198U (en) | 2021-09-03 | 2021-09-03 | Simple expansion piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122128019.2U CN215722198U (en) | 2021-09-03 | 2021-09-03 | Simple expansion piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215722198U true CN215722198U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122128019.2U Active CN215722198U (en) | 2021-09-03 | 2021-09-03 | Simple expansion piece |
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| Country | Link |
|---|---|
| CN (1) | CN215722198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113697034A (en) * | 2021-09-03 | 2021-11-26 | 浙江东溟科技有限公司 | Simple expansion piece and telescopic mounting structure of underwater sensor |
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2021
- 2021-09-03 CN CN202122128019.2U patent/CN215722198U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113697034A (en) * | 2021-09-03 | 2021-11-26 | 浙江东溟科技有限公司 | Simple expansion piece and telescopic mounting structure of underwater sensor |
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