A spanner for fire maintenance

Abstract

The utility model provides a kind of calipers for fire maintenance, including calipers body, the calipers body includes handle, joint, chain, tab and adjusting nut, it is characterized in that, first fixed mechanism is provided on the tab, first slider is slidably connected on the tab, upper jaw is fixedly installed in the first slider bottom, second fixed mechanism is arranged in handle top side wall, second slider is slidably connected in handle top, handle top is slidably connected with auxiliary slider further, the same lower jaw is fixedly installed in the auxiliary slider and second slider top, extension handle is slidably connected in handle bottom, locking groove is evenly opened in the extension handle, locking mechanism is provided in the handle front face;The present calipers can replace jaw alone, when the tooth surface of calipers wears and needs to be replaced, other parts of calipers can still be in good working condition, thus, only replacing jaw can avoid unnecessary waste.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting tools, and more specifically, to a fire-fighting maintenance clamp. Background Technology

[0002] Pipe clamps, also known as calipers, play a crucial role in pipe installation, maintenance, and handling of various round objects. Their key feature is their exceptional clamping ability, commonly used to grip and rotate various pipes to ensure smooth operations. In the firefighting field, calipers also play a vital role. Firefighters frequently need to handle various pipes during maintenance or rescue operations, making the clamping and rotating functions of calipers particularly important.

[0003] After prolonged use, the teeth of the caliper will wear down, which may cause the caliper to be unable to firmly grip the object during operation, resulting in a decrease in clamping force and affecting the stability and safety of operation, thus requiring the caliper to be replaced. Currently, the entire caliper is usually replaced. However, many other parts of the caliper may be discarded before they have reached the end of their service life, which is wasteful. Therefore, we have made an improvement and proposed a fire protection maintenance caliper. Utility Model Content

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0005] Fire protection maintenance clamps are used to improve the above-mentioned problems.

[0006] The present invention is as follows:

[0007] The caliper body includes a caliper handle, a connecting component, a chain, a protrusion, and an adjusting nut. The protrusion has a first fixing mechanism, a first slider is slidably connected to the protrusion, and an upper jaw is fixedly installed at the bottom of the first slider. The top sidewall of the caliper handle has a second fixing mechanism, a second slider is slidably connected to the top of the caliper handle, and an auxiliary slider is also slidably connected to the top of the caliper handle. The auxiliary slider and the second slider have the same lower jaw fixedly installed at their tops. An extension handle is slidably connected to the bottom of the caliper handle, and locking grooves are evenly distributed on the extension handle. A locking mechanism is provided on the front of the caliper handle. The caliper handle has a first anti-slip mechanism, and the extension handle has a second anti-slip mechanism.

[0008] As a preferred technical solution of this utility model, the first fixing mechanism includes a first fixing screw disposed on the protrusion.

[0009] As a preferred technical solution of this utility model, the bottom of the protrusion is provided with a first sliding groove, the first sliding groove is matched with the first slider, and the first slider is threadedly connected to the first fixing screw.

[0010] As a preferred technical solution of this utility model, the second fixing mechanism includes a second fixing screw threadedly connected to the top side wall of the pliers handle.

[0011] As a preferred technical solution of this utility model, a second sliding groove is provided at the top of the clamp handle, the second sliding groove is matched with the second slider, and an auxiliary sliding groove is provided at the top of the clamp handle, the auxiliary sliding groove is matched with the auxiliary slider.

[0012] As a preferred technical solution of this utility model, the locking mechanism includes a hand-tightening bolt threaded to the front of the pliers handle.

[0013] As a preferred technical solution of this utility model, the first anti-slip mechanism includes a first anti-slip texture disposed on the surface of the pliers handle, and the second anti-slip mechanism includes a second anti-slip texture disposed on the surface of the extension handle.

[0014] As a preferred technical solution of this utility model, locking teeth are provided at the bottom of the upper jaw and the top of the lower jaw.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the solution of this utility model:

[0017] 1. By removing the first fixing screw, the first fixing screw is disengaged from the first slider. Then, the upper jaw is removed, and the upper jaw moves the first slider along the first slide groove, thus removing the upper jaw. Next, the second fixing screw is removed, and the second fixing screw is disengaged from the auxiliary slider and the second slider. Then, the lower jaw is removed, and the lower jaw moves the second slider along the second slide groove. At the same time, the lower jaw also moves the auxiliary slider along the auxiliary slide groove, thus removing the lower jaw. Then, the new upper jaw and lower jaw are installed respectively, thus completing the replacement. This allows for the replacement of the caliper jaws, solving the problem in the prior art where the caliper teeth are worn down, usually requiring the entire caliper to be replaced. However, many other parts of the caliper may be discarded before reaching the end of their service life, which is wasteful. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the fire-fighting maintenance clamp provided by this utility model;

[0019] Figure 2 A schematic diagram of the extended handle of the fire-fighting maintenance pliers provided by this utility model after the present invention is extended.

[0020] Figure 3 A schematic diagram of the first fixing screw structure of the fire-fighting maintenance clamp provided by this utility model;

[0021] Figure 4A schematic diagram of the first sliding groove structure of the fire-fighting maintenance clamp provided by this utility model;

[0022] Figure 5 A schematic diagram of the first slider structure of the fire-fighting maintenance clamp provided by this utility model;

[0023] Figure 6 This is a schematic diagram of the second fixing screw structure of the fire-fighting maintenance clamp provided by this utility model;

[0024] Figure 7 A schematic diagram of the second slide groove structure of the fire-fighting maintenance clamp provided by this utility model;

[0025] Figure 8 A schematic diagram of the second slider and auxiliary slider structure of the fire-fighting maintenance caliper provided by this utility model.

[0026] The image shows:

[0027] 1. Pliers handle; 2. Assembly; 3. Chain; 4. Protrusion; 5. First slider; 6. Upper jaw; 7. Second slider; 8. Lower jaw; 9. Extension handle; 10. Locking groove; 11. Adjusting nut; 12. First fixing screw; 13. Second fixing screw; 14. Auxiliary slider; 15. Hand-tightening bolt; 16. First anti-slip texture; 17. Second anti-slip texture; 18. First slide groove; 19. Second slide groove; 20. Auxiliary slide groove; 21. Clamping tooth. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Example:

[0034] like Figure 1-8 As shown, this embodiment proposes a fire-fighting maintenance pliers, including a pliers body comprising a handle 1, a connector 2, a chain 3, a protrusion 4, and an adjusting nut 11. A first fixing mechanism is provided on the protrusion 4 for fixing a first slider 5. The first slider 5 is slidably connected to the protrusion 4, and an upper jaw 6 is fixedly installed at the bottom of the first slider 5. The upper jaw 6 is slidably connected to the protrusion via the first slider 5, allowing it to be replaced. A second fixing mechanism is provided on the top side wall of the handle 1 for fixing a second slider 7. A second slider 7 is slidably connected to the top of the handle 1, and an auxiliary slider 14 is also slidably connected to the top of the handle 1. The auxiliary slider 14 and the second slider 7 are fixedly mounted with the same lower jaw 8. The lower jaw 8 is slidably connected to the handle 1 through the second slider 7 so that it can be replaced. An extension handle 9 is slidably connected to the bottom of the handle 1. Locking grooves 10 are evenly opened on the extension handle 9. A locking mechanism is provided on the front of the handle 1. The locking mechanism is used to lock the extension handle 9. A first anti-slip mechanism is provided on the handle 1, and a second anti-slip mechanism is provided on the extension handle 9.

[0035] The first fixing mechanism includes a first fixing screw 12 disposed on the protrusion 4, which is used to fix the first slider 5.

[0036] A first sliding groove 18 is provided at the bottom of the protrusion 4. The first sliding groove 18 matches the first slider 5. The upper jaw 6 drives the first slider 5 to slide in the first sliding groove 18. The first slider 5 is threadedly connected to the first fixing screw 12. The first fixing screw 12 is used to fix the first slider 5.

[0037] The second fixing mechanism includes a second fixing screw 13 threaded to the top side wall of the clamp handle 1, which is used to fix the second slider 7.

[0038] A second sliding groove 19 is provided at the top of the clamp handle 1. The second sliding groove 19 matches the second slider 7. The lower jaw 8 drives the second slider 7 to slide along the second sliding groove 19. An auxiliary sliding groove 20 is provided at the top of the clamp handle 1. The auxiliary sliding groove 20 matches the auxiliary slider 14. The lower jaw 8 also drives the auxiliary slider 14 to slide along the auxiliary sliding groove 20.

[0039] The locking mechanism includes a hand-tightening bolt 15 threaded onto the front of the pliers handle 1, which is used to lock the extension handle 9.

[0040] The first anti-slip mechanism includes a first anti-slip texture 16 provided on the surface of the pliers handle 1, which serves to prevent slipping. The second anti-slip mechanism includes a second anti-slip texture 17 provided on the surface of the extension handle 9, which also serves to prevent slipping.

[0041] Chess 21 are provided at the bottom of the upper jaw 6 and the top of the lower jaw 8.

[0042] In this embodiment, the caliper body is manufactured by Hebei Tuokai Explosion-proof Tools Co., Ltd., model number TK130-04. Its structural principle and usage method are existing technologies and will not be described in detail here.

[0043] Specifically, when using this fire-fighting maintenance clamp: when the teeth 21 on the surfaces of the upper jaw 6 and lower jaw 8 wear down and affect the clamping force, requiring replacement of the upper jaw 6 and lower jaw 8, first use a screwdriver to remove the first fixing screw 12, disengaging it from the first slider 5. Then remove the upper jaw 6 (it can be tapped with a hammer). The upper jaw 6 will cause the first slider 5 to slide along the first sliding groove 18, allowing the upper jaw 6 to be removed. Next, use a screwdriver to remove the second fixing screw 13, disengaging it from the first sliding groove 18. The auxiliary slider 14 and the second slider 7 are disengaged. Then, the lower jaw 8 is removed (it can be tapped with a hammer). The lower jaw 8 drives the second slider 7 to slide along the second slide groove 19. At the same time, the lower jaw 8 also drives the auxiliary slider 14 to slide along the auxiliary slide groove 20. Then, the lower jaw 8 can be removed. Next, the new upper jaw 6 and lower jaw 8 are installed respectively to complete the replacement. In this way, when the teeth of the caliper are worn and need to be replaced, the other parts of the caliper may still be in good working condition. Therefore, only the jaws are replaced, which can avoid unnecessary waste.

[0044] When it is necessary to increase the length of this caliper, first remove the hand-tightening bolt 15, then pull the extension handle 9 to the appropriate position, and then use the hand-tightening bolt 15 to pass through the locking groove 10 to fix it.

[0045] All technical features in this embodiment can be freely combined according to actual needs.

[0046] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A fire-fighting maintenance caliper, comprising a caliper body, the caliper body including a caliper handle (1), a connecting piece (2), a chain (3), a protrusion (4), and an adjusting nut (11), characterized in that, The protrusion (4) is provided with a first fixing mechanism, and the protrusion (4) is slidably connected with a first slider (5). The bottom of the first slider (5) is fixedly installed with an upper jaw (6). The top side wall of the clamp handle (1) is provided with a second fixing mechanism. The top of the clamp handle (1) is slidably connected with a second slider (7). The top of the clamp handle (1) is also slidably connected with an auxiliary slider (14). The top of the auxiliary slider (14) and the second slider (7) are fixedly installed with the same lower jaw (8). The bottom of the clamp handle (1) is slidably connected with an extension handle (9). The extension handle (9) is evenly provided with locking grooves (10). The front of the clamp handle (1) is provided with a locking mechanism. The clamp handle (1) is provided with a first anti-slip mechanism. The extension handle (9) is provided with a second anti-slip mechanism.

2. The fire-fighting maintenance clamp according to claim 1, characterized in that, The first fixing mechanism includes a first fixing screw (12) disposed on the protrusion (4).

3. A fire-fighting maintenance clamp according to claim 2, characterized in that, The bottom of the protrusion (4) is provided with a first sliding groove (18), which matches the first slider (5), and the first slider (5) is threadedly connected to the first fixing screw (12).

4. A fire-fighting maintenance clamp according to claim 1, characterized in that, The second fixing mechanism includes a second fixing screw (13) threaded onto the top side wall of the pliers handle (1).

5. A fire-fighting maintenance clamp according to claim 1, characterized in that, The top of the clamp handle (1) is provided with a second sliding groove (19), which matches the second slider (7). The top of the clamp handle (1) is provided with an auxiliary sliding groove (20), which matches the auxiliary slider (14).

6. A fire-fighting maintenance clamp according to claim 1, characterized in that, The locking mechanism includes a hand-tightening bolt (15) threaded onto the front of the pliers (1).

7. A fire-fighting maintenance clamp according to claim 1, characterized in that, The first anti-slip mechanism includes a first anti-slip texture (16) provided on the surface of the pliers handle (1), and the second anti-slip mechanism includes a second anti-slip texture (17) provided on the surface of the extension handle (9).

8. A fire-fighting maintenance clamp according to claim 1, characterized in that, The bottom of the upper jaw (6) and the top of the lower jaw (8) are both provided with locking teeth (21).

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