Pneumatic wrench head replacement structure

Abstract

The utility model provides a pneumatic wrench head replacement structure, which relates to the technical field of pneumatic wrenches, and comprises a pneumatic wrench, a wrench head, a square head, a handle, a box body, a replacement assembly and a protection assembly, the wrench head is arranged on one side of the outer end of the pneumatic wrench, the square head is arranged at the outer end of the wrench head, and the handle is arranged on one side of the bottom of the pneumatic wrench. The box body is arranged on one side of the top end and the bottom end of the pneumatic wrench, the replacement assembly is arranged between the pneumatic wrench and the wrench head, and the protection assembly is used for disassembling and replacing the wrench head, is arranged outside the box body and is used for providing anti-collision protection for the box body. The wrench head replacement structure of the pneumatic wrench can be conveniently detached from the pneumatic wrench through the replacement assembly, the wrench head can be rapidly detached and replaced without carrying a screwdriver tool, the pneumatic wrench can be conveniently used, the replacement assembly can be hidden and protected through the protection assembly, the replacement assembly is prevented from being impacted by an external object, and the replacement efficiency is improved. The stability of the wrench head is prevented from being influenced by mistaken touch.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic wrenches, in particular to a pneumatic wrench head replacement structure. Background Art

[0002] A pneumatic wrench, also known as a ratchet wrench, is mainly a tool that provides high torque output with minimal consumption. It uses a continuous power source to accelerate the rotation of an object with a certain mass, and then instantly hits the output shaft, thereby obtaining a relatively large torque output.

[0003] Regarding the replacement structure of the pneumatic wrench head, the national publication number CN219946010U discloses "a kind of portable pneumatic wrench". The pneumatic wrench power box can be conveniently suspended by the provided suspension seat, so that the pneumatic wrench can be conveniently placed, and the pneumatic wrench can be conveniently carried by passing the line rope through the provided rope seat. When the pneumatic wrench is in use, the pneumatic wrench can be hung on the waist by the provided hook during the use gap, so that it can be more convenient to use it again, so that the pneumatic wrench can be easy to carry and use. However, the pneumatic wrench still has certain defects in actual use. For example, the pneumatic wrench head is installed by fixing screws, which is not convenient for quick replacement of the wrench head. When disassembling the wrench head, it is necessary to carry a screwdriver tool to disassemble and replace the wrench head, which makes the pneumatic wrench inconvenient to use. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a pneumatic wrench head replacement structure, which can be easily disassembled from the pneumatic wrench by replacing the component, and the wrench head can be quickly disassembled and replaced without carrying a screwdriver tool, which is convenient for the use of the pneumatic wrench. The replacement component can be hidden and protected by the protective component to prevent external objects from hitting the replacement component and prevent accidental touch from affecting the stability of the wrench head.

[0005] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0006] A pneumatic wrench wrench head replacement structure comprises: a pneumatic wrench, a wrench head, a square head, a handle, a box body, a replacement component and a protective component, the wrench head being arranged on one side of the outer end of the pneumatic wrench, the outer end of the wrench head being provided with a square head, a handle being installed on one side of the bottom of the pneumatic wrench, a box body being arranged on one side of the top and bottom ends of the pneumatic wrench, a replacement component being arranged between the pneumatic wrench and the wrench head and being used for disassembling and replacing the wrench head, and a protective component being arranged on the outside of the box body and being used for providing anti-collision protection for the box body.

[0007] Furthermore, the replacement component includes: mounting grooves opened on both sides of the top and bottom of the pneumatic wrench, three movable holes are opened between the mounting groove and the box body, moving rods are provided inside the three movable holes, a limit block is provided at the bottom of the moving rod, limiting grooves are provided inside the three movable holes, and the moving rod passes through the limit grooves and extends to the inside of the mounting groove, a spring is arranged inside the limit groove, the spring is sleeved on the moving rod, a handle frame is provided on the top of the moving rod, a fixing rod is arranged at the relative position of the outer end of the wrench head and the mounting groove, and a push block is installed on one side of the top of the fixing rod.

[0008] Furthermore, the protective assembly includes: a protective cover arranged on the outside of the box body, top contact rods arranged on both sides of the inside of the protective cover, and a sealing ring arranged on the outer ring of the box body and connected by glue, and the sealing ring is made of rubber material.

[0009] Furthermore, a connecting hole is provided on one side of the inner part of the square head, a motor shaft is provided on one side of the outer end of the pneumatic wrench, and the square head is rotatably connected to the motor shaft through the connecting hole.

[0010] Furthermore, one side of the bottom end of the limit block is arranged in a beveled surface structure along the vertical direction, and one side of the top end of the push block is arranged in a beveled surface structure along the horizontal direction.

[0011] Furthermore, connecting rods are provided on the tops of the three moving rods, and both sides of the tops of the connecting rods are fixedly connected to the handle frames.

[0012] Furthermore, a top block is installed at the bottom of the top contact rod, and a slot adapted to the handle frame is opened at the bottom of the top block.

[0013] The beneficial effects of the utility model are:

[0014] The replacement component can be easily removed from the pneumatic wrench. The wrench head can be quickly removed and replaced without carrying a screwdriver tool, which makes the use of the pneumatic wrench convenient. The replacement component can be hidden and protected by the protective component to prevent external objects from hitting the replacement component and prevent accidental touch from affecting the stability of the wrench head. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is an overall cross-sectional schematic diagram of the utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the pneumatic wrench of the utility model.

[0018] Figure 4It is a cross-sectional schematic diagram of the wrench head of the utility model.

[0019] Figure 5 For the utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0020] Figure 6 It is a schematic diagram of the structure of the wrench head of the utility model.

[0021] Figure 7 For the utility model Figure 2 Enlarged schematic diagram of point B in the middle.

[0022] Figure 8 It is a schematic diagram of the internal cross-sectional structure of the protective cover of the utility model.

[0023] Figure 1-Figure 8 In: 1. Pneumatic wrench; 101. Wrench head; 102. Square head; 103. Connecting hole; 104. Motor shaft; 2. Handle; 3. Mounting slot; 301. Box body; 302. Movable hole; 303. Moving rod; 304. Limit block; 305. Limit slot; 306. Spring; 307. Handle frame; 308. Connecting rod; 4. Fixed rod; 401. Push block; 5. Protective cover; 501. Top contact rod; 502. Top block; 503. Card slot; 6. Sealing ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0025] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] Example 1

[0027] like Figure 1-Figure 8 As shown, a pneumatic wrench wrench head replacement structure includes: a pneumatic wrench 1, a wrench head 101, a square head 102, a handle 2, a box body 301, a replacement component and a protective component, the wrench head 101 is arranged on one side of the outer end of the pneumatic wrench 1, the outer end of the wrench head 101 is provided with a square head 102, the handle 2 is installed on one side of the bottom of the pneumatic wrench 1, the box body 301 is arranged on one side of the top and bottom ends of the pneumatic wrench 1, the replacement component arranged between the pneumatic wrench 1 and the wrench head 101, and is used for disassembling and replacing the wrench head 101, and the protective component arranged on the outside of the box body 301, and is used for providing anti-collision protection for the box body 301.

[0028] Among them, reference Figure 3-Figure 4 A connecting hole 103 is provided on one side of the inner side of the square head 102 , a motor shaft 104 is provided on one side of the outer end of the pneumatic wrench 1 , and the square head 102 is rotatably connected to the motor shaft 104 through the connecting hole 103 .

[0029] When the pneumatic wrench 1 is used, the fixing rod 4 at one end of the wrench head 101 is inserted into the mounting groove 3. During the process of pushing the wrench head 101, the connecting hole 103 on one side of the square head 102 is inserted into the motor shaft 104, so that the wrench head 101 is connected to the pneumatic wrench 1, and then the square head 102 is installed on the pneumatic wrench 1 for use.

[0030] Among them, reference Figure 1-Figure 6 The replacement component includes: mounting grooves 3 opened on both sides of the top and bottom of the pneumatic wrench 1, three movable holes 302 are opened between the mounting groove 3 and the box body 301, and moving rods 303 are arranged inside the three movable holes 302, and a limiting block 304 is arranged at the bottom of the moving rod 303, and limiting grooves 305 are arranged inside the three movable holes 302, and the moving rod 303 passes through the limiting grooves 305 and extends to the inside of the mounting groove 3, a spring 306 is arranged inside the limiting groove 305, and the spring 306 is sleeved on the moving rod 303, and a handle frame 307 is arranged on the top of the moving rod 303, and a fixing rod 4 is arranged at a relative position between the outer end of the wrench head 101 and the mounting groove 3, and a push block 401 is installed on one side of the top of the fixing rod 4.

[0031] When the wrench head 101 is installed with the pneumatic wrench 1, the fixing rod 4 at one end of the wrench head 101 is respectively inserted into the corresponding installation groove 3, and the wrench head 101 is pushed hard to make the push block 401 on the fixing rod 4 be subjected to force. When the fixing rod 4 is pushed into the installation groove 3, the push block 401 contacts the limit block 304 and pushes the limit block 304 to be subjected to force, so that the moving rod 303 at the top of the limit block 304 squeezes the spring 306 to move upward. At this time, the limit groove 305 limits the position of the spring 306, that is, the moving rod 303 drives the limit block 304 to move upward, and the wrench head 101 is continuously pushed to make one end of the fixing rod 4 bear against the inner wall of the installation groove 3 for placement. After the push block 401 moves out of the position of the limit block 304, the limit block 304 Without the effect of the driving force, the spring 306 recovers its deformation, and the moving rod 303 drives the limit block 304 to return to its original position. The limit block 304 hits the fixed rod 4. At this time, the limit block 304 and the push block 401 are misaligned and stuck, thereby firmly installing the wrench head 101. When the wrench head 101 needs to be replaced, the handle frame 307 is grasped to pull the moving rod 303 outward to compress the spring 306 and pull the limit block 304 into the movable hole 302. At this time, the push block 401 is not limited by the clamping force of the limit block 304. The wrench head 101 can be pulled out, which is convenient for disassembly from the pneumatic wrench 1. The wrench head 101 can be quickly disassembled and replaced without carrying a screwdriver tool, which is convenient for the use of the pneumatic wrench 1.

[0032] The movable rod 303 is provided with three pieces, namely, there are three positions between the limit block 304 and the push block 401, so that the fixed rod 4 is firmly limited in the installation groove 3, and the fixed rod 4 is prevented from being easily loosened, thereby ensuring that the wrench head 101 is firmly installed, and the fixed rod 4 is distributed in a triangular structure, which has a good force point inside the pneumatic wrench 1 to maintain balance, and prevent the wrench head 101 from shaking during use.

[0033] Among them, reference Figure 2 and Figure 5 The bottom side of the limit block 304 is arranged in a beveled section structure along the vertical direction, and the top side of the push block 401 is arranged in a beveled section structure along the horizontal direction.

[0034] When the push block 401 contacts the limit block 304, the chamfered surface at the top of the push block 401 fits in with the chamfered surface at the bottom of the limit block 304, avoiding resistance when the push block 401 pushes the limit block 304, and can push the limit block 304 to move upward under force, thereby achieving the purpose of locking.

[0035] Among them, reference Figure 2 A connecting rod 308 is provided on the top of the three moving rods 303, and both sides of the top of the connecting rod 308 are fixedly connected to the handle frame 307.

[0036] When the wrench head 101 is disassembled, it is fixedly connected to the handle frame 307 through the connecting rod 308. When the handle frame 307 is pulled, the three movable rods 303 can be pulled up at the same time, and then the limit block 304 can be pulled up at the same time to release the limit on the push block 401, so that the fixed rod 4 can be easily pulled out from the inside of the installation slot 3.

[0037] Example 2

[0038] Based on Example 1, Figure 2 , Figure 7 and Figure 8 The protection component includes: a protection cover 5 arranged outside the box body 301, top contact rods 501 arranged on both sides of the inside of the protection cover 5, and a sealing ring 6 arranged on the outer ring of the box body 301 and connected by glue, and the sealing ring 6 is made of rubber material.

[0039] After the wrench head 101 is fixedly installed on the pneumatic wrench 1, the protective cover 5 is covered on the outside of the box body 301. At this time, the protective cover 5 is clamped on the outside of the box body 301 through the sealing ring 6, and the top contact rod 501 inside the box body 301 will support the handle frame 307, further limiting the position of the handle frame 307. The protective cover 5 can prevent external objects from hitting the handle frame 307 during the use of the pneumatic wrench 1, and hide it to protect it from accidental touch and affect the stability of the wrench head 101.

[0040] Among them, reference Figure 8 A top block 502 is installed at the bottom of the top contact rod 501, and a slot 503 adapted to the handle frame 307 is opened at the bottom of the top block 502.

[0041] When the protective cover 5 is covered on the outside of the box body 301, the top block 502 at the bottom of the top contact rod 501 will contact the handle frame 307, and the top block 502 will be clamped on the handle frame 307 through the clamping slot 503, which can not only protect the handle frame 307 but also tighten and reinforce the handle frame 307, thereby increasing the firmness of the installation of the wrench head 101.

[0042] This device can be easily disassembled from the pneumatic wrench 1 by replacing the components. The wrench head 101 can be quickly disassembled and replaced without carrying a screwdriver tool, which is convenient for the use of the pneumatic wrench 1. The replacement components can be hidden and protected by the protective components to prevent external objects from hitting the replacement components and prevent accidental touch from affecting the stability of the wrench head 101. Specific implementation method: When installing the wrench head 101 and the pneumatic wrench 1, the fixed rod 4 at one end of the wrench head 101 is respectively inserted into the corresponding installation groove 3, and the wrench head 101 is pushed hard to make the push block 401 on the fixed rod 4 be stressed. When the fixed rod 4 is pushed into the installation groove 3, the push block 401 contacts the limit block 304 and pushes the limit block 304 to be stressed, so that the moving rod 303 at the top of the limit block 304 squeezes the spring 306 to move upward. At this time, the limit groove 305 limits the position of the spring 306. That is, the moving rod 303 drives the limit block 304 to move upward, continuously pushing the wrench head 101, so that one end of the fixed rod 4 is placed against the inner wall of the installation groove 3, and after the push block 401 moves out of the position of the limit block 304, the limit block 304 is not affected by the driving force, the spring 306 recovers its deformation, and the moving rod 303 drives the limit block 304 back to its original position, and the limit block 304 contacts the fixed rod 4. At this time, the limit block 304 and the push block 401 are misaligned and stuck, thereby firmly installing the wrench head 101.

[0043] When the wrench head 101 needs to be replaced, the handle frame 307 is grasped to pull the moving rod 303 outward, the spring 306 is compressed, and the limit block 304 is pulled into the movable hole 302. At this time, the push block 401 is not limited by the clamping force of the limit block 304. The wrench head 101 can be pulled out, which is convenient for disassembly from the pneumatic wrench 1. The wrench head 101 can be quickly disassembled and replaced without carrying a screwdriver tool, which is convenient for the use of the pneumatic wrench 1.

[0044] After the wrench head 101 is fixedly installed on the pneumatic wrench 1, the protective cover 5 is covered on the outside of the box body 301. At this time, the protective cover 5 is clamped on the outside of the box body 301 through the sealing ring 6, and the top contact rod 501 inside the box body 301 will support the handle frame 307, further limiting the position of the handle frame 307. The protective cover 5 can prevent external objects from hitting the handle frame 307 during the use of the pneumatic wrench 1, and hide it to protect it from accidental touch and affect the stability of the wrench head 101.

[0045] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0046] The above is a detailed introduction to a pneumatic wrench head replacement structure provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pneumatic wrench wrench head replacement structure, characterized in that: include: Pneumatic wrench (1), wrench head (101), square head (102), handle (2), box body (301), replacement component and protection component; A wrench head (101) is arranged on one side of the outer end of the pneumatic wrench (1), and a square head (102) is arranged on the outer end of the wrench head (101); A handle (2) mounted on one side of the bottom of the pneumatic wrench (1); A box body (301) arranged on one side of the top end and the bottom end of the pneumatic wrench (1); A replacement component disposed between the pneumatic wrench (1) and the wrench head (101), used for disassembling and replacing the wrench head (101); A protection component arranged outside the box body (301) is used to provide anti-collision protection for the box body (301).

2. The pneumatic wrench head replacement structure according to claim 1, characterized in that: The replacement assembly includes: A mounting groove (3) is provided on both sides of the top and the bottom of the pneumatic wrench (1); three movable holes (302) are provided between the mounting groove (3) and the box body (301); a moving rod (303) is provided inside each of the three movable holes (302); a limiting block (304) is provided at the bottom of the moving rod (303); a limiting groove (305) is provided inside each of the three movable holes (302); and the moving rod (303) passes through the limiting groove (305) and extends to the inside of the mounting groove (3); A spring (306) is arranged inside the limiting groove (305), the spring (306) is sleeved on the moving rod (303), and a handle frame (307) is provided on the top of the moving rod (303); A fixing rod (4) is arranged at a position where the outer end of the wrench head (101) is relative to the mounting groove (3), and a push block (401) is installed on one side of the top end of the fixing rod (4).

3. The pneumatic wrench head replacement structure according to claim 2, characterized in that: The protection component comprises: A protective cover (5) disposed outside the box body (301); A top contact rod (501) arranged on both sides of the interior of the protective cover (5); A sealing ring (6) is arranged on the outer ring of the box body (301) and connected by gluing, and the sealing ring (6) is made of rubber material.

4. The pneumatic wrench head replacement structure according to claim 1, characterized in that: A connecting hole (103) is provided on one side of the interior of the square head (102), a motor shaft (104) is provided on one side of the outer end of the pneumatic wrench (1), and the square head (102) is rotatably connected to the motor shaft (104) through the connecting hole (103).

5. The pneumatic wrench head replacement structure according to claim 2, characterized in that: One side of the bottom end of the limit block (304) is arranged in a beveled surface structure along the vertical direction, and one side of the top end of the push block (401) is arranged in a beveled surface structure along the horizontal direction.

6. The pneumatic wrench head replacement structure according to claim 2, characterized in that: A connecting rod (308) is provided on the top of the three moving rods (303), and both sides of the top of the connecting rod (308) are fixedly connected to the handle frame (307).

7. The pneumatic wrench head replacement structure according to claim 3, characterized in that: A top block (502) is installed at the bottom of the top contact rod (501), and a slot (503) adapted to the handle frame (307) is provided at the bottom of the top block (502).

Images