CN220783805U - Auxiliary tool for assembling and disassembling small screw - Google Patents
Auxiliary tool for assembling and disassembling small screw Download PDFInfo
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- CN220783805U CN220783805U CN202322606019.8U CN202322606019U CN220783805U CN 220783805 U CN220783805 U CN 220783805U CN 202322606019 U CN202322606019 U CN 202322606019U CN 220783805 U CN220783805 U CN 220783805U
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- auxiliary tool
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- sleeve
- dismounting
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- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model relates to an auxiliary tool for dismounting and mounting a small screw, which comprises a screw rod with two ends penetrating through, a supporting part arranged at one end of the screw rod, a grabbing part arranged at the other end for grabbing a small screw cap, and a sleeve sleeved on the screw rod and shifted along the length direction of the screw rod for adjusting the opening size of the grabbing part. Compared with the prior art, the screw cap can be firmly gripped, the screw can be quickly disassembled and assembled under the condition that the screw cap is damaged, and the screw cap can be suitable for auxiliary tools in narrow areas, so that the working efficiency is improved, and the risk of preventing foreign matter failure is prevented.
Description
Technical Field
The utility model relates to the technical field of maintenance tools for nuclear power stations, in particular to an auxiliary tool for dismounting small screws.
Background
At present, in the diagnosis work of a nuclear power station nuclear-level electric actuator, a small screw is frequently disassembled and assembled, a screw driver with a magnetic head cannot be used because of non-iron screw materials, and the small screw is more difficult to disassemble and assemble after a protective garment is worn in a nuclear island, so that the screw is easy to fall off to generate the risk of preventing foreign matter failure, and the working efficiency is influenced. In addition, the screw is found to be worn at the position of the nut due to repeated disassembly and assembly, so that subsequent disassembly and assembly are difficult, and the risk of loosening of screw fixation is also possibly caused.
Therefore, for the above-mentioned difficult and easy risk such as preventing that the foreign matter from failing of small-size screw dismouting, what is needed is an appurtenance that small-size screw dismouting was used.
Disclosure of Invention
The utility model aims to provide an auxiliary tool for dismounting the small screw, which is used for overcoming the risks of difficult dismounting the small screw, easy failure of foreign matters prevention and the like in the prior art.
The aim of the utility model can be achieved by the following technical scheme:
the technical scheme of the utility model is to provide an auxiliary tool for dismounting and mounting a small screw, which comprises a screw rod with two ends penetrating, a supporting part arranged at one end of the screw rod, a grabbing part arranged at the other end for grabbing a small screw cap, and a sleeve sleeved on the screw rod and shifted along the length direction of the screw rod for adjusting the opening size of the grabbing part.
In some specific embodiments, the supporting part is a table structure with a wide upper end and a narrow lower end, and the lower end of the supporting part is embedded into one end of the screw rod to be fixed.
In some embodiments, the support is an elastic support.
In some embodiments, the support is a rubber support.
In some embodiments, the gripping part is of a three-jaw structure and comprises a first sub-jaw, a second sub-jaw and a third sub-jaw which are connected with the inner side wall of the end part of the screw.
In some embodiments, the inner sides of the first, second and third sub-claws are provided with stripes.
In some embodiments, the first, second and third sub-claws are all elastic triangle structures, and are in a free falling state when the three-claw structure is not stressed; when the three-jaw structure is stressed, the three-jaw structure is in an inward gathering state.
In some embodiments, the screw outer wall is provided with an external thread, the sleeve inner wall is provided with an internal thread matched with the external thread, and the sleeve is enabled to displace along the length direction of the screw through the matching of the external thread and the internal thread.
In some embodiments, the sleeve is an elastomeric sleeve.
In some embodiments, the sleeve is a rubber sleeve.
In some embodiments, the inner diameter of the sleeve is less than the outer diameter of the screw.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The utility model has clear and concise structure, and can enable debugging personnel to master the using method through simple learning.
(2) The grabbing screw is firm in fixation, not easy to fall off and high in safety coefficient.
(3) The utility model has wider application range and is used for the diagnosis test and the debugging work of the electric valve of the nuclear power station.
(4) The screw cap can be firmly gripped, the screw can be quickly disassembled and assembled under the condition that the screw cap is damaged, and the screw cap can be suitable for auxiliary tools in narrow areas, so that the working efficiency is improved, and the risk of preventing foreign matter failure is prevented.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
The figures are identified as follows:
1 is a grabbing part, 2 is a screw rod, 3 is a supporting part, 4 is a sleeve, and 5 is a thread.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present utility model, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present utility model is not limited to the following examples.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and features of the embodiments may be combined with each other without conflict.
In the following embodiments, unless otherwise specified, functional components or structures are indicated as conventional components or structures adopted in the art to achieve the corresponding functions.
Example 1:
as shown in fig. 1, the auxiliary tool for mounting and dismounting a small screw comprises a screw rod 2 with two ends penetrating, a supporting part 3 arranged at one end of the screw rod 2, a grabbing part 1 arranged at the other end for grabbing a small screw cap, and a sleeve 4 sleeved on the screw rod 2 and shifted along the length direction of the screw rod 2 for adjusting the opening size of the grabbing part 1.
According to the technical scheme, the opening size of the grabbing part 1 is adjusted through the sleeve 4 so as to adapt to nuts with different sizes, the screws are disassembled and assembled through clockwise and anticlockwise rotating screws, the small screws are not required to be fixed and taken by fingers in the operation process, and the risk that the working efficiency is affected and the screws fall down to cause foreign matters due to isolation of protective gloves is avoided.
In this embodiment, the support portion 3 has a table-like structure with a wide upper end and a narrow lower end, and the lower end of the support portion 3 is fixed by being fitted into one end of the screw 2. The upper end of the design of the supporting part 3 is wide in the technical scheme so as to be used for supporting the palm, so that the palm can be in an easy stress state during operation.
In the present embodiment, the support portion 3 is specifically a rubber support portion.
In this embodiment, the gripping portion 1 has a three-jaw structure, and includes a first sub-jaw, a second sub-jaw, and a third sub-jaw connected to an inner sidewall of an end portion of the screw 2.
In this embodiment, the first, second and third sub-claws are each provided with a stripe on the inner side thereof. According to the technical scheme, friction force is generated between each split claw of the three-claw structure and the nut, so that the grabbing firmness is improved.
In this embodiment, the first, second and third sub-claws are all elastic triangle structures, and are in a free falling state when the three-claw structure is not stressed; when the three-jaw structure is subjected to external force, the three-jaw structure is in an inward gathering state.
In this embodiment, an external thread is disposed on the outer wall of the screw 2, an internal thread matched with the external thread is disposed on the inner wall of the sleeve 4, and the sleeve 4 is displaced along the length direction of the screw 2 by the cooperation of the external thread and the internal thread. The present solution is to fix the sleeve 4 and the screw 2 and to allow the sleeve 4 to adjust the opening size of the gripping part 1 during the displacement 3.
In the present embodiment, the sleeve 4 is specifically an elastic rubber sleeve.
In this embodiment, the inner diameter of the sleeve 4 is smaller than the outer diameter of the screw 2. The present solution is to provide the port of the sleeve 4 with the ability to constrict the opening of the grip 1.
The action flow of the utility model is as follows:
(1) And (3) fixing screws: by rotating the sleeve 4 clockwise, the sleeve 4 moves downwards along the screw 2, and the grabbing part 1 of the port of the screw 2 is extruded, so that the opening of the grabbing part 1 can firmly grab the small screw cap.
(2) Dismantling a screw: the support 3 at the end of the screw 2 supports the palm of the hand and rotates the screw 1 clockwise to remove the screw.
(3) And (3) mounting screws: the support 3 at the end of the screw 2 supports the palm and rotates the screw 1 counterclockwise to remove the screw.
(4) And (5) taking down: holding: the tail end of the screw rod 2 is fixed, and the sleeve 4 moves upwards along the screw rod 2 by rotating the sleeve 4 anticlockwise, so that the clamping part 1 at the front end of the screw rod 2 loosens the nut.
The embodiment verifies in the diagnosis test and debugging process of the Shandong nuclear power island electric valve, and has good effect.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present utility model.
Claims (10)
1. The utility model provides an appurtenance that small-size screw dismouting was used, its characterized in that includes that both ends link up screw rod (2), locates supporting part (3) of screw rod (2) one end, locate the grabbing part (1) that the other end is used for snatching small-size screw nut, and cover are located on screw rod (2) and follow screw rod (2) length direction shift is used for adjusting grabbing part (1) opening size sleeve (4).
2. The auxiliary tool for mounting and dismounting a small screw according to claim 1, wherein the supporting portion (3) has a table-shaped structure with a wide upper end and a narrow lower end, and the lower end of the supporting portion (3) is embedded into one end of the screw (2) for fixing.
3. An auxiliary tool for mounting and dismounting a small screw according to claim 1, characterized in that the support part (3) is an elastic support part.
4. An auxiliary tool for mounting and dismounting a small screw according to claim 3, characterized in that the support part (3) is a rubber support part.
5. The auxiliary tool for assembling and disassembling a small screw according to claim 1, wherein the grabbing part (1) has a three-jaw structure and comprises a first jaw, a second jaw and a third jaw which are connected with the inner side wall of the end part of the screw (2).
6. The auxiliary tool for assembling and disassembling a small screw according to claim 5, wherein the inner sides of the first, second and third sub-claws are provided with stripes.
7. The auxiliary tool for assembling and disassembling a small screw according to claim 5, wherein the first, second and third sub-claws are all of an elastic triangle structure, and are in a free falling state when the three-claw structure is not stressed; when the three-jaw structure is subjected to external force, the three-jaw structure is in an inward gathering state.
8. The auxiliary tool for dismounting and mounting the small screw according to claim 1, wherein an external thread is arranged on the outer wall of the screw (2), an internal thread matched with the external thread is arranged on the inner wall of the sleeve (4), and the sleeve (4) is enabled to displace along the length direction of the screw (2) through the matching of the external thread and the internal thread.
9. An auxiliary tool for mounting and dismounting a small screw according to claim 1, characterized in that the sleeve (4) is an elastic sleeve.
10. An auxiliary tool for mounting and dismounting a small screw according to claim 1, characterized in that the inner diameter of the sleeve (4) is smaller than the outer diameter of the screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322606019.8U CN220783805U (en) | 2023-09-26 | 2023-09-26 | Auxiliary tool for assembling and disassembling small screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322606019.8U CN220783805U (en) | 2023-09-26 | 2023-09-26 | Auxiliary tool for assembling and disassembling small screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220783805U true CN220783805U (en) | 2024-04-16 |
Family
ID=90657799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322606019.8U Active CN220783805U (en) | 2023-09-26 | 2023-09-26 | Auxiliary tool for assembling and disassembling small screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220783805U (en) |
-
2023
- 2023-09-26 CN CN202322606019.8U patent/CN220783805U/en active Active
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