Clamp

Abstract

The utility model discloses a clamp, and particularly relates to the technical field of clamps, the clamp comprises a U-shaped fixing seat, one end of the U-shaped fixing seat is provided with a connecting frame, and the two ends of the connecting frame are symmetrically and rotatably provided with clamping jaws; arc-shaped grooves are symmetrically formed in the inner sides of the ends, close to the connecting frame, of the two clamping jaws, and a positioning block is arranged in the middle of the interior of the connecting frame and located between the two arc-shaped grooves. The arc-shaped groove, the positioning block, the driving screw and other structures are arranged between the two clamping jaws, the positioning block abuts against the inner wall of the arc-shaped groove and extrudes the clamping jaws to rotate, and therefore the two clamping jaws are controlled to rotate inwards or outwards at the same time, opening and closing of the two clamping jaws can be rapidly achieved so that the safety device can be easily taken out, operation is easy and convenient, and working efficiency is high. And the device is light in size, convenient to use integrally, stable in clamping, not prone to abrasion to the safety device, capable of being taken out easily, capable of achieving the expected effect, low in later-period production cost and easy to popularize and use.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, and particularly relates to a fixture. Background Art

[0002] During the operation of the DC system and the retrofit of the battery, it is necessary to remove the fuse device on the lightning arrester. Since the fuse device has not been pulled out for a long time, there is static electricity attracting dust in the insertion slot, and the insertion slot is tightly fitted. Without a specific clamping tool, it is difficult to effectively pull out the fuse device, which will delay the operation progress and waste working time. And when there is no dedicated tool for pulling out, the shape of the fuse device will be worn to a certain extent, and the insertion fit degree may be affected when inserted again, thus affecting the normal function of the fuse. At present, due to the special shape and structure of the fuse device, there are few special tools for taking it out on the market. There are various types of clamping tools, such as pliers, panel clamps, F-clamps, G-clamps, etc. Due to the special structure of the fuse device, G-clamps and F-clamps are more suitable than other clamping tools. However, G-clamps and F-clamps are generally only suitable for clamping and not for taking out. For pliers, if a jaw opening of about 5 cm is required, the overall volume will be relatively large, the operation is clumsy, and the practicability is not strong. Therefore, it is necessary to design a fixture to solve the above problems. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a fixture. By setting structures such as an arc-shaped groove, a positioning block, and a driving screw between two clamping jaws, the positioning block abuts against the inner wall of the arc-shaped groove and squeezes the clamping jaws to rotate, so as to control the two clamping jaws to rotate inwards or outwards simultaneously, and then the two jaws can be quickly opened and closed to easily take out the fuse device. The operation is simple and convenient, the work efficiency is high, the volume is light, the overall use is convenient, it can be clamped stably, it is not easy to cause wear to the fuse device, the fuse device can be easily taken out, and the expected effect is achieved. The later production cost is not high, and it is easy to promote and use, so as to solve the above deficiencies in the technology.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A fixture, comprising:

[0005] A U-shaped fixed seat, one end of the U-shaped fixed seat is provided with a connecting frame, and two clamping jaws are symmetrically and rotatably installed at both ends of the connecting frame;

[0006] Arc-shaped grooves are symmetrically opened on the inner sides of the two clamping jaws close to one end of the connecting frame. A positioning block is arranged in the middle of the connecting frame and between the two arc-shaped grooves. A driving screw is connected through the U-shaped fixed seat and the connecting frame in a threaded manner. One end of the driving screw is movably connected to the positioning block, and a connecting handle is arranged at the other end of the driving screw.

[0007] Preferably, the positioning block is cylindrical, and the positioning block can respectively abut against both ends of the inner wall of the arc-shaped groove.

[0008] Preferably, on the inner sides of one ends of the two clamping jaws relative to the connecting frame, there are provided locking teeth.

[0009] Preferably, on the inner and outer sides of both ends of the U-shaped fixing seat, nuts are symmetrically fixed, and threaded columns penetrate through both ends of the U-shaped fixing seat. The threaded columns are in threaded connection with the nuts, and one end of the threaded column is movably connected by a bearing to a fixing plate facing the connecting handle. A fixing handle is provided at the other end of the threaded column. A plurality of tooth pieces are arranged in an annular array on the outer wall of the connecting handle. A inserting piece facing the tooth pieces is connected to the side wall of the fixing plate, and the inserting piece can be inserted between two adjacent tooth pieces.

[0010] Preferably, one end of the fixing plate is fixed with a sliding block, and a sliding groove matching the sliding block is formed in the inner side of the U-shaped fixing seat.

[0011] Preferably, the outer wall of the fixing handle is provided with anti-slip convex lines.

[0012] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0013] By arranging structures such as an arc-shaped groove, a positioning block, and a driving screw between the two clamping jaws, the positioning block abuts against the inner wall of the arc-shaped groove and presses the clamping jaws to rotate, so as to control the two clamping jaws to rotate inwards or outwards simultaneously, and then the two jaws can be quickly opened and closed to easily take out the safety device. The operation is simple and convenient, the work efficiency is high, and the volume is light and compact. The overall use is convenient, it can clamp stably, is not easy to cause wear to the safety device, and can easily take out the safety device, achieving the expected effect. The later production cost is not high, and it is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0016] Figure 2 It is one of the schematic diagrams of the overall structure of Embodiment 2 of the present utility model;

[0017] Figure 3 It is the second of the schematic diagrams of the overall structure of Embodiment 2 of the present utility model;

[0018] Figure 4This is a cross-sectional view of the U-shaped fixing seat and the connecting frame of the present utility model;

[0019] Figure 5 This is a schematic three-dimensional structure diagram of the connection between the tooth piece and the insertion piece of the present utility model.

[0020] Explanation of reference numerals in the drawings:

[0021] 1. U-shaped fixing seat; 2. Connecting frame; 3. Claw; 4. Card teeth; 5. Driving screw; 6. Connecting handle; 7. Arc-shaped groove; 8. Positioning block; 9. Fixed plate; 10. Insertion piece; 11. Tooth piece; 12. Nut; 13. Threaded column; 14. Fixed handle; 15. Slide block; 16. Slide groove. Detailed implementation manners

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further introduced in detail below with reference to the drawings.

[0023] Embodiment 1

[0024] The present utility model provides a fixture as shown in Figure 1 and Figure 4 which includes:

[0025] A U-shaped fixing seat 1, one end of the U-shaped fixing seat 1 is provided with a connecting frame 2, and two ends of the connecting frame 2 are symmetrically and rotatably installed with claws 3;

[0026] Arc-shaped grooves 7 are symmetrically opened on the inner sides of the near ends of the two claws 3 close to the connecting frame 2. A positioning block 8 is provided in the middle of the inside of the connecting frame 2 and between the two arc-shaped grooves 7. A driving screw 5 is connected through the thread between the U-shaped fixing seat 1 and the connecting frame 2. One end of the driving screw 5 is movably connected to the positioning block 8, and a connecting handle 6 is provided at the other end of the driving screw 5.

[0027] The positioning block 8 is cylindrical, and the positioning block 8 can respectively abut against both ends of the inner wall of the arc-shaped groove 7.

[0028] Card teeth 4 are provided on the inner sides of the ends of the two claws 3 relative to the connecting frame 2. The clamping effect can be greatly enhanced through the card teeth 4.

[0029] Through the above technical solutions:

[0030] When in use, the driving screw 5 is rotated by turning the connecting handle 6. Under the action of the thread, the driving screw 5 can drive the positioning block 8 to move, so that the positioning block 8 abuts against the side walls of the two arc-shaped grooves 7 on both sides. Under the movement and extrusion of the positioning block 8, the two claws 3 can be extruded to rotate inwards or outwards at the same time, so that the opening and closing of the two claws can be quickly controlled to easily take out the safety device. The operation is simple and convenient, the work efficiency is high, and the volume is light and small, and it is not easy to cause wear to the safety device, and the use effect is good.

[0031] In addition, due to the low processing precision, jamming may occur in the rotating part of the thread. Therefore, a small amount of butter needs to be applied. During use, oil stains may appear. During use and storage, it can be placed in a dedicated tool cabinet. It is convenient to use as a whole, has stable clamping, can easily take out the safety device, achieves the expected effect, has low later production cost, and is easy to promote and use.

[0032] The maximum opening between the two jaws is 69.16 mm, and the minimum opening is 13.17 mm, which can adapt to devices of different sizes, expanding the application range and ensuring that safety devices of different models can be used. Due to the existing gap, there is a dead zone when the driving screw 5 rotates. When the opening and closing are excessive, it is necessary to rotate two weeks to drive the two jaws to operate. If the gap is adjusted smaller, the two jaws will be stuck prematurely and cannot reach the maximum and minimum opening degrees, thus unable to meet the use requirements. Therefore, the original gap is retained, and the driving screw 5 can be rotated two more weeks before use.

[0033] Embodiment 2

[0034] The present utility model provides a fixture as shown in Figure 2 and Figure 5 Both the inner and outer sides at both ends of the U-shaped fixed seat 1 are symmetrically fixed with nuts 12, and both ends of the U-shaped fixed seat 1 are penetrated and connected with threaded columns 13. The threaded columns 13 are in threaded connection with the nuts 12, and one end of the threaded column 13 is movably connected with a fixing plate 9 facing the connecting handle 6 through a bearing. A fixing handle 14 is provided at the other end of the threaded column 13. A plurality of tooth pieces 11 are arranged in an annular array on the outer wall of the connecting handle 6. A inserting piece 10 facing the tooth pieces 11 is connected to the side wall of the fixing plate 9, and the inserting piece 10 can be inserted between two adjacent tooth pieces 11.

[0035] A slider 15 is fixed at one end of the fixing plate 9, and a sliding groove 16 matching the slider 15 is opened on the inner side of the U-shaped fixed seat 1.

[0036] By setting the locking structure, when the two jaws rotate and clamp, the fixing handles 14 on both sides of the U-shaped fixed seat 1 can be rotated, so that the fixing handles 14 drive the threaded columns 13 to rotate on the nuts 12. Then, the threaded columns 13 drive the fixing plate 9 to move, so that the fixing plate 9 drives the slider 15 to slide in the sliding groove 16. After that, the fixing plate 9 drives the inserting piece 10 to approach the connecting handle 6 and insert between the tooth pieces 11, thereby locking the driving screw 5 to prevent the positioning block 8 from moving and driving the two jaws to rotate, greatly ensuring the stability of the structure.

[0037] Anti-slip convex lines are provided on the outer wall of the fixing handle 14. The anti-slip convex lines can play an anti-slip role, so as to rotate the fixing handle 14 more easily.

[0038] Only some exemplary embodiments of the present utility model are described by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A fixture, characterized in that Including: A U-shaped fixing base (1), one end of the U-shaped fixing base (1) is provided with a connecting frame (2), and clamping jaws (3) are symmetrically and rotatably installed at both ends of the connecting frame (2); Arc-shaped grooves (7) are symmetrically formed on the inner sides of the two clamping jaws (3) near the connecting frame (2). A positioning block (8) is arranged in the middle of the connecting frame (2) and between the two arc-shaped grooves (7). A driving screw rod (5) is connected through the thread between the U-shaped fixing base (1) and the connecting frame (2). One end of the driving screw rod (5) is movably connected to the positioning block (8), and a connecting handle (6) is arranged at the other end of the driving screw rod (5).

2. The fixture according to claim 1, wherein: The positioning block (8) is cylindrical, and the positioning block (8) can respectively abut against both ends of the inner wall of the arc-shaped groove (7).

3. A fixture according to claim 1, characterized in that: Tooth-shaped parts (4) are arranged on the inner sides of the two clamping jaws (3) relative to one end of the connecting frame (2).

4. A fixture according to claim 1, characterized in that: Nuts (12) are symmetrically fixed on the inner and outer sides of both ends of the U-shaped fixing base (1), and threaded columns (13) penetrate through both ends of the U-shaped fixing base (1). The threaded columns (13) are screwed with the nuts (12). One end of the threaded column (13) is movably connected through a bearing to a fixing plate (9) facing the connecting handle (6). A fixing handle (14) is arranged at the other end of the threaded column (13). A plurality of tooth pieces (11) are arranged in an annular array on the outer wall of the connecting handle (6). An inserting piece (10) facing the tooth pieces (11) is connected to the side wall of the fixing plate (9), and the inserting piece (10) can be inserted between two adjacent tooth pieces (11).

5. A fixture according to claim 4, wherein: A slider (15) is fixed to one end of the fixing plate (9), and a sliding groove (16) matching the slider (15) is formed on the inner side of the U-shaped fixing base (1).

6. A fixture according to claim 4, wherein: Anti-slip ridges are arranged on the outer wall of the fixing handle (14).

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