Wrench with wrench head convenient to disassemble and replace

By designing a detachable wrench head and adjustment components, the problem of resource waste in traditional wrenches is solved, enabling convenient replacement of the wrench head and flexible use in confined spaces, thereby improving the tool's applicability and lifespan.

CN223876920UActive Publication Date: 2026-02-06TAIZHOU SINMEN TOOLS CO LTD
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Patent Information

Application Number
CN202520365172.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-02-06
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

Traditional wrenches have their heads and handles forged together, meaning that one type of wrench can only be used for one type of screw. After prolonged use, they wear out severely and become unusable, resulting in a waste of resources.

Method used

A wrench comprising a handle, a mounting component, and an adjustment component has been designed. The wrench head is detachably mounted on the handle end. The wrench head and handle are detachably connected through the cooperation of a limiting groove, a limiting block, and a movable column. The angle can be adjusted by the adjustment component, making it convenient for use in confined spaces.

Benefits of technology

It enables convenient replacement of wrench heads, reduces resource waste, and allows for flexible use in confined spaces, thus improving the tool's applicability and lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a wrench with a wrench head convenient to disassemble and replace, which belongs to the technical field of wrench tools and comprises a handle, a mounting component and an adjusting component. One end of the handle is detachably provided with a wrench head, and the other side of the handle is provided with a grab handle; two limiting grooves are correspondingly formed in the inner wall of a connecting sleeve, one end of a wrench head is fixedly connected with a connecting column, a mounting hole and a containing cavity are formed in the connecting column, the mounting hole and the containing cavity are communicated, a limiting block is installed in the containing cavity, and a movable column in the mounting hole is connected with the limiting block through a connecting rod. When a movable column is pressed, a connecting rod drives a limiting block to move towards the interior of a containing cavity, after the connecting column is inserted into a connecting sleeve in a penetrating mode, the movable column is loosened, at the moment, a spring pushes the movable column to reset through a limiting ring, the movable column drives the limiting block to be inserted into a limiting groove in a penetrating mode through the connecting rod, and the wrench head and the handle are detachably connected; and the wrench head is convenient to replace.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a wrench tool technical field, concretely to a wrench of convenient disassembly and replacement wrench head. BACKGROUND

[0002] Manual wrench is also called ordinary wrench, and its use is relatively simple, and is mainly divided into single-head dead wrench, double-head dead wrench, movable wrench, crescent wrench, combined wrench and other wrenches. The wrench is one of commonly used tools in the mechanical industry, and is generally composed of multiple types. The traditional handle and wrench head are forged together, and a type of wrench can only be used for a type of screw. Long-time work causes the frequently worn common type of wrench to be unable to continue to be used, and thus the wrench needs to be replaced in a complete set, resulting in resource waste. UTILITY MODEL CONTENTS

[0003] The utility model discloses a wrench of convenient disassembly and replacement wrench head, to solve the problem that the traditional handle and wrench head are forged together, and a type of wrench can only be used for a type of screw, long-time work causes the frequently worn common type of wrench to be unable to continue to be used, and thus the wrench needs to be replaced in a complete set, resulting in resource waste.

[0004] To achieve the above object, the utility model provides the following technical scheme: a wrench of convenient disassembly and replacement wrench head, including handle, installation component and adjusting component.

[0005] One end of the handle is detachably installed with the wrench head, and the other side of the handle is installed with a handle.

[0006] The installation component includes a connecting sleeve connected to one end of the handle, limit grooves are formed on the inner wall of the connecting sleeve, a connecting column is fixedly installed at one end of the wrench head, an installation hole is formed in the connecting column, an accommodating cavity is formed in the connecting column close to the installation hole, the installation hole and the accommodating cavity are in communication, a movable column is inserted into the installation hole, a connecting rod is installed in the middle of the movable column, a limit block is arranged in the accommodating cavity, one end of the connecting rod is fixedly connected with the bottom of the limit block, and the limit block is clamped in the limit groove.

[0007] The adjusting component includes a connecting head installed at one end of the handle, a connecting seat is installed at one end of the connecting sleeve, threaded holes are formed in the surfaces of the connecting seat and the connecting head, and fixed bolts are screw-connected in the threaded holes.

[0008] As a preferred scheme of the utility model, a stop ring is fixedly installed at the bottom end of the movable column, a spring is installed at the bottom of the installation hole, and the stop ring is in contact with the spring.

[0009] As an optimal scheme of the utility model: the connecting hole is internally screwed with an installation screw rod.

[0010] As an optimal scheme of the utility model: the tail end of the handle is installed with a hanging rope.

[0011] As an optimal scheme of the utility model: the surface of the handle is provided with a weight-reducing hole.

[0012] As an optimal scheme of the utility model: the surface of the handle is provided with an anti-skid pattern.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1) the handle is connected with a connecting sleeve at one end, two limiting grooves are formed in the inner wall of the connecting sleeve, the wrench head is fixedly connected with a connecting column at one end, the connecting column is internally provided with an installation hole and a containing cavity, the installation hole and the containing cavity are designed in communication, the containing cavity is internally installed with a limiting block, a movable column in the installation hole is connected with the limiting block through a connecting rod, when the movable column is pressed, the limiting block is driven to move into the containing cavity through the connecting rod, after the connecting column is inserted into the connecting sleeve, the movable column is released, at this time, the spring pushes the movable column back to the original position through the limiting ring, the movable column drives the limiting block to be inserted into the limiting groove through the connecting rod, so that the wrench head and the handle are detachably connected, the wrench head can be conveniently replaced, and resource waste is reduced.

[0015] (2) the handle is installed with a connecting head at one end through the adjusting assembly, the connecting head is hingedly connected with the connecting seat at one end of the connecting sleeve, when the fixed bolt is loosened, the handle and the wrench head can be adjusted in angle, the entering angle of the wrench head can be adjusted when used in a narrow structure space, the connecting head and the connecting seat are fixed by inserting the fixed bolt into the threaded hole formed in the surface of the connecting head and the connecting seat, so that the adjusted angle can be conveniently maintained. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic view of the utility model;

[0017] Figure 2 It is the split structure schematic view of the utility model;

[0018] Figure 3 It is the installation assembly structure schematic view of the utility model;

[0019] Figure 4 It is the adjusting assembly structure schematic view of the utility model.

[0020] In the figure: 1, handle; 2, wrench head; 3, handle; 4, mounting assembly; 41, connecting sleeve; 42, limiting groove; 43, connecting column; 44, mounting hole; 45, accommodating cavity; 46, movable column; 47, connecting rod; 48, limiting block; 5, adjusting assembly; 51, connecting head; 52, connecting seat; 53, threaded hole; 54, fixing bolt; 6, retaining ring; 7, spring; 8, connecting hole; 9, mounting screw; 10, hanging rope; 11, weight-reducing hole; 12, anti-skid pattern. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-4 A wrench with wrench head convenient to disassemble and replace, comprising: handle 1, mounting assembly 4 and adjusting assembly 5; one end of handle 1 is detachably installed with wrench head 2, and the other side of handle 1 is installed with handle 3;

[0023] Please refer to Figure 1 , Figure 3 Mounting assembly 4 comprises connecting sleeve 41 connected to one end of handle 1, limiting grooves 42 are formed on the inner wall of connecting sleeve 41, one end of wrench head 2 is fixedly installed with connecting column 43, mounting hole 44 is formed in the inside of connecting column 43, accommodating cavity 45 is formed in the inside of connecting column 43 close to mounting hole 44, mounting hole 44 and accommodating cavity 45 are in communication, movable column 46 is inserted into the inside of mounting hole 44, connecting rod 47 is installed in the middle of movable column 46, limiting block 48 is arranged in the inside of accommodating cavity 45, one end of connecting rod 47 is fixedly connected with the bottom of limiting block 48, limiting block 48 is clamped in the inside of limiting groove 42, retaining ring 6 is fixedly installed at the bottom end of movable column 46, spring 7 is installed at the bottom of mounting hole 44, and retaining ring 6 is in contact with spring 7.

[0024] Specific use: the one end of handle 1 is connected with connecting sleeve 41, two limit grooves 42 are formed in the inner wall of connecting sleeve 41, one end of wrench head 2 is fixedly connected with connecting column 43, mounting hole 44 and containing cavity 45 are formed in the inside of connecting column 43, mounting hole 44 and containing cavity 45 are in communication, limit block 48 is installed in the inside of containing cavity 45, movable column 46 in the inside of mounting hole 44 is connected with limit block 48 through connecting rod 47, when movable column 46 is pressed, limit block 48 is driven to move to the inside of containing cavity 45 through connecting rod 47, after connecting column 43 is inserted into the inside of connecting sleeve 41, movable column 46 is released, at this time, spring 7 drives movable column 46 to reset through stop ring 6, movable column 46 drives limit block 48 to be inserted into the inside of limit groove 42 through connecting rod 47, so that wrench head 2 and handle 1 can be detachably connected, wrench head 2 can be conveniently replaced, and resource waste is reduced.

[0025] Please refer to Figure 1 , Figure 4 , the adjusting assembly 5 includes a connector 51 installed at one end of the handle 1, a connecting sleeve 41 is installed at one end of the connecting sleeve 41, and a connecting seat 52 is formed on the surface of the connecting sleeve 41. The connecting seat 52 and the connecting head 51 are both provided with threaded holes 53, and the threaded holes 53 are threadedly connected with fixing bolts 54.

[0026] Specific use: one end of handle 1 is provided with a connecting head 51, and the connecting head 51 is hingedly connected with a connecting seat 52 at one end of the connecting sleeve 41. When the fixing bolts 54 are loosened, the angle between the handle 1 and the wrench head 2 can be adjusted, which facilitates the adjustment of the entering angle of the wrench head 2 when used in a narrow structure space. By inserting the fixing bolts 54 into the threaded holes 53 formed on the surfaces of the connecting head 51 and the connecting seat 52, the connecting head 51 and the connecting seat 52 are fixed, which facilitates the maintenance of the adjusted angle.

[0027] Please refer to Figure 1 , Figure 2 , a connecting hole 8 is formed around the connecting seat 52, and an installation screw rod 9 is threadedly connected in the connecting hole 8.

[0028] Specific use: a connecting hole 8 is formed around the connecting seat 52, and an installation screw rod 9 is threadedly connected in the connecting hole 8, so that the connecting sleeve 41 and the handle 1 can be disassembled and replaced, which facilitates the replacement of connecting sleeves 41 of different sizes for use.

[0029] Please refer to Figure 1 , a hanging rope 10 is installed at the tail end of the handle 1.

[0030] Specific use: the hanging rope 10 at the tail end of the handle 1 facilitates the hanging of the wrench.

[0031] Please refer to Figure 1 , a weight-reducing hole 11 is formed on the surface of the handle 1.

[0032] Specific use: the weight-reducing holes 11 opened on the surface of the handle 1 can ensure the structural strength while reducing the weight of the wrench.

[0033] Please refer to Figure 1 The surface of the handle 3 is provided with anti-skid lines 12.

[0034] Specific use: the anti-skid lines 12 opened on the surface of the handle 3 can increase the friction with the hands during use, preventing the hands from slipping during use.

[0035] A connecting sleeve 41 is connected to one end of the handle 1, two limiting grooves 42 are opened on the inner wall of the connecting sleeve 41, one end of the wrench head 2 is fixedly connected with a connecting column 43, the connecting column 43 is provided with an installation hole 44 and a containing cavity 45, the installation hole 44 and the containing cavity 45 are in communication, the containing cavity 45 is internally provided with a limiting block 48, a movable column 46 in the installation hole 44 is connected with the limiting block 48 through a connecting rod 47, when the movable column 46 is pressed, the limiting block 48 is driven to move into the containing cavity 45 through the connecting rod 47, after the connecting column 43 is inserted into the connecting sleeve 41, the movable column 46 is loosened, at this time, the spring 7 pushes the movable column 46 back to the original position through the stop ring 6, the movable column 46 drives the limiting block 48 to be inserted into the limiting groove 42 through the connecting rod 47, so that the wrench head 2 and the handle 1 are detachably connected, which is convenient for replacing the wrench head 2 and reducing resource waste.

[0036] The contents not described in detail in the description belong to the prior art known by the person skilled in the art, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A wrench which is convenient to detach and replace a wrench head, characterized in that, Include: Handle (1), one end of the handle (1) is detachably mounted with wrench head (2), the other side of the handle (1) is mounted with handle (3); The mounting assembly (4) comprises a connecting sleeve (41) connected to one end of the handle (1), limit grooves (42) are formed on the inner wall of the connecting sleeve (41), one end of the wrench head (2) is fixedly installed with a connecting column (43), an installation hole (44) is formed in the connecting column (43), an accommodating cavity (45) is formed in the connecting column (43) near the installation hole (44), the installation hole (44) and the accommodating cavity (45) are in communication, the installation hole (44) is connected with a movable column (46), the movable column (46) is connected with a connecting rod (47), the accommodating cavity (45) is provided with a limiting block (48), one end of the connecting rod (47) is fixedly connected with the bottom of the limiting block (48), the limiting block (48) is clamped in the limiting groove (42); The adjusting assembly (5) comprises a connecting head (51) mounted at one end of the handle (1), a connecting seat (52) is mounted at one end of the connecting sleeve (41), threaded holes (53) are formed on the surfaces of the connecting seat (52) and the connecting head (51), and fixed bolts (54) are screwed in the threaded holes (53).

2. The wrench of claim 1, wherein: The bottom end of the movable column (46) is fixedly installed with a stop ring (6), the bottom of the installation hole (44) is installed with a spring (7), and the stop ring (6) is connected with the spring (7).

3. The wrench of claim 1, wherein: The connecting seat (52) is provided with a connecting hole (8) around, and the connecting hole (8) is screwed with a mounting screw (9).

4. The wrench of claim 1, wherein: The tail end of the handle (1) is provided with a hanging rope (10).

5. The wrench of claim 1, wherein: The surface of the handle (1) is provided with a weight reduction hole (11).

6. The wrench of claim 1, wherein: The surface of the handle (3) is provided with anti-skid lines (12).