Novel constant value type torque wrench

Abstract

The utility model relates to the technical field of constant value type torque wrenches, in particular to a novel constant value type torque wrench which comprises a shell body, a connector is arranged at the left end of the shell body, a controller is installed on the top face of the shell body, a holding structure is installed on the shell body, and the holding structure comprises a fixing block. The fixing block is fixedly connected to the right end of the shell body, the right end of the fixing block is rotationally connected with a connecting block through a rotating shaft, the right end of the connecting block is rotationally connected with a rotating block through a rotating shaft, a limiting guide block is integrally formed on the outer wall of the rotating block, and a coil spring is fixedly connected to the joint of the connecting block and the fixing block and the joint of the connecting block. The rotatable connecting block and the rotatable rotating block are arranged and matched with the holding sleeve, so that the holding direction can be adjusted, the operation experience is guaranteed, the extension of the holding structure in the length direction of the device is reduced, the occupied space of the device during use can be reduced, and the practicability of the device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixed-value torque wrenches, and specifically relates to a new type of fixed-value torque wrench. Background Technique

[0002] A torque wrench, also known as a torque-adjustable wrench, is a type of wrench. When the tightness of screws and bolts is crucial, a torque wrench allows the operator to apply a specific torque value.

[0003] For example, the patent document with the publication number: CN202120840494.X discloses a new type of fixed-value torque wrench, which includes a first connecting rod. The first connecting rod is movably installed with a first connecting head through a first threaded rod, and the first connecting rod is movably installed with a second connecting head through a first threaded rod. A fixed thread is movably installed at a position on the left side of the middle of the top of the first connecting rod. A torque display device main body is fixedly installed at a position near the middle of the right end of the first connecting rod. This utility model can select the first connecting head or the second connecting head according to different working environments, improving the practicality of the work. At the same time, when in a narrow space, the second rubber grip and the second threaded rod can be removed first, and then the work can be carried out through the external force rod and the fixed column. By changing the direction of the force, the applicability of the work is improved. Finally, when facing a relatively difficult-to-rotate part, the second threaded rod can be replaced to obtain a longer lever arm, so that the part can be replaced more easily.

[0004] The second rubber grip and the second threaded rod of this wrench are detachable. When used in a narrow space, the second rubber grip and the second threaded rod can be removed, and the operation can be carried out through the external force rod and the fixed column, improving the scope of application. However, in actual use, the external force rod and the fixed column still protrude from the outer surface of the second connecting rod, making the length of the device still relatively long. When in use, it still needs to occupy a large space, which will affect the use experience of the device.

[0005] Therefore, it is urgently necessary to design a new type of fixed-value torque wrench to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a new type of fixed-value torque wrench to solve the problem in the above background technique that the second rubber grip and the second threaded rod of the existing wrench are detachable. When used in a narrow space, the second rubber grip and the second threaded rod can be removed, and the operation can be carried out through the external force rod and the fixed column, improving the scope of application. However, in actual use, the external force rod and the fixed column still protrude from the outer surface of the second connecting rod, making the length of the device still relatively long. When in use, it still needs to occupy a large space, which will affect the use experience of the device.

[0007] To achieve the above object, the present utility model provides the following technical solutions: a novel fixed-value torque wrench, including a housing main body, a connection head is provided at the left end of the housing main body, a controller is installed on the top surface of the housing main body, and a holding structure is installed on the housing main body. The holding structure includes a fixed block, the fixed block is fixedly connected to the right end of the housing main body, the right end of the fixed block is rotatably connected to a connection block through a rotating shaft, the right end of the connection block is rotatably connected to a rotating block through a rotating shaft, a limiting guide block is integrally formed on the outer wall of the rotating block, a torsion spring is fixedly connected at the connection between the connection block and the fixed block and the connection block, and a holding sleeve is sleeved outside the rotating block.

[0008] Preferably, a protective structure is installed on the connection head. The protective structure includes a snap ring, the snap ring is clamped on the top surface of the connection between the housing main body and the connection head, and a protective sleeve is integrally formed at the left end of the snap ring.

[0009] Preferably, the cross-sections of the fixed block, the connection block, and the rotating block are all rectangular.

[0010] Preferably, the holding sleeve is sleeved outside the fixed block, the connection block, and the rotating block, and the outer walls of the fixed block, the connection block, and the rotating block are in contact with the inner wall of the holding sleeve.

[0011] Preferably, the limiting guide block is slidably installed on the inner wall of the holding sleeve.

[0012] Preferably, the protective sleeve is sleeved outside the top surface of the connection head.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] For this novel fixed-value torque wrench, through the provided holding structure, the holding sleeve is sleeved outside the fixed block, the connection block, and the rotating block, which can fix the angle between the fixed block, the connection block, and the rotating block, making the fixed block, the connection block, and the rotating block straight, facilitating the operation of the device by holding the holding sleeve. And when used in a narrow space, the holding sleeve can be pulled to expose the left ends of the fixed block, the connection block, and the rotating block, releasing the angle limit between the fixed block, the connection block, and the rotating block. At this time, the connection block and the rotating block will rotate under the elastic action of the torsion spring, and the connection block changes from horizontal to vertical, causing the fixed block, the connection block, and the rotating block to fold into a "J" or "]" shape structure, which can adjust the holding direction, ensure the operation experience, and reduce the extension of the holding structure in the length direction of the device, thereby reducing the space occupied by the device during use and improving the practicability of the device;

[0015] This new type of fixed-value torque wrench, through the set protective structure, the snap ring is clamped at the connection between the housing main body and the connector, and the protective sleeve covers the outside of the connector, which can protect the connector and prevent the connector from being damaged by bumps or erosion by foreign objects, resulting in damage to the functionality of the device and affecting the use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional schematic diagram of the structure of the present utility model;

[0017] Figure 2 is an exploded schematic diagram of the structure of the present utility model;

[0018] Figure 3 is an exploded schematic diagram of the structures of the fixing block, connecting block and rotating block of the present utility model;

[0019] Figure 4 is a schematic diagram of the folded state structure of the holding structure of the present utility model.

[0020] In the figure: 1, housing main body; 11, connector; 12, controller; 2, holding structure; 21, fixing block; 22, connecting block; 23, rotating block; 24, limiting guide block; 25, torsion spring; 26, holding sleeve; 3, protective structure; 31, snap ring; 32, protective sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4 , an embodiment provided by the present utility model:

[0023] The housing main body 1, connector 11 and controller 12 used in this application are products that can be directly purchased on the market, and their principles and connection methods are all well-known prior arts to those skilled in the art, so they will not be elaborated here.

[0024] A new type of fixed-value torque wrench includes a housing main body 1. A connecting head 11 is provided at the left end of the housing main body 1. A controller 12 is installed on the top surface of the housing main body 1. A holding structure 2 is installed on the housing main body 1. The holding structure 2 includes a fixed block 21. The fixed block 21 is fixedly connected to the right end of the housing main body 1. The right end of the fixed block 21 is rotatably connected to a connecting block 22 through a rotating shaft. The right end of the connecting block 22 is rotatably connected to a rotating block 23 through a rotating shaft. A limiting guide block 24 is integrally formed on the outer wall of the rotating block 23. A coil spring 25 is fixedly connected to the connection between the connecting block 22 and the fixed block 21 and the connecting block 22. A holding sleeve 26 is sleeved outside the rotating block 23. The holding sleeve 26 is sleeved outside the fixed block 21, the connecting block 22 and the rotating block 23, and can fix the angles between the fixed block 21, the connecting block 22 and the rotating block 23, so that the fixed block 21, the connecting block 22 and the rotating block 23 are kept straight, which is convenient for holding the holding sleeve 26 to operate the device. And when used in a narrow space, the holding sleeve 26 can be pulled to expose the left ends of the fixed block 21, the connecting block 22 and the rotating block 23, and the limit on the angles between the fixed block 21, the connecting block 22 and the rotating block 23 can be released. At this time, the connecting block 22 and the rotating block 23 will rotate under the elastic action of the coil spring 25. The connecting block 22 changes from horizontal to vertical, so that the fixed block 21, the connecting block 22 and the rotating block 23 are folded into a "J" or "]" shaped structure, which can adjust the holding direction, ensure the operation experience, and reduce the extension of the holding structure 2 in the length direction of the device, that is, the space occupied by the device during use can be reduced, and the practicability of the device can be improved.

[0025] Furthermore, a protective structure 3 is installed on the connecting head 11. The protective structure 3 includes a snap ring 31. The snap ring 31 is clamped on the top surface of the connection between the housing main body 1 and the connecting head 11. A protective sleeve 32 is integrally formed at the left end of the snap ring 31. The snap ring 31 is clamped at the connection between the housing main body 1 and the connecting head 11, and the protective sleeve 32 covers the outside of the connecting head 11, which can protect the connecting head 11 from being damaged by bumps or external objects, so that the functionality of the device is damaged and the use experience is affected.

[0026] Furthermore, the cross-sections of the fixed block 21, the connecting block 22 and the rotating block 23 are all rectangular. The fixed block 21, the connecting block 22 and the rotating block 23 cooperate with each other to limit the installation angle of the holding sleeve 26 and prevent rotation, resulting in dropping the hand and affecting the operation experience.

[0027] Furthermore, the holding sleeve 26 is sleeved outside the fixed block 21, the connecting block 22 and the rotating block 23. The outer walls of the fixed block 21, the connecting block 22 and the rotating block 23 are in contact with the inner wall of the holding sleeve 26. The contact between the fixed block 21, the connecting block 22 and the rotating block 23 and the holding sleeve 26 is tight, which can ensure that the holding structure 2 is straight and ensure the operation experience of the device.

[0028] Further, the limit guide block 24 is slidably mounted on the inner wall of the holding sleeve 26. The limit guide block 24 guides and limits the movement of the holding sleeve 26 outside the fixed block 21, the connecting block 22 and the rotating block 23, preventing the holding sleeve 26 from falling off the rotating block 23.

[0029] Further, the protective sleeve 32 is sleeved on the outer side of the top surface of the connecting head 11. The protective sleeve 32 can protect the connecting head 11 from the outside, preventing the connecting head 11 from being damaged by bumps or foreign object erosion, which may impair the functionality of the device and affect the user experience.

[0030] Working principle: When in use, the user can hold the holding structure 2 to operate the device;

[0031] When used in a narrow space, the holding sleeve 26 can be pulled, causing the holding sleeve 26 to slide on the fixed block 21, the connecting block 22 and the rotating block 23. The limit guide block 24 guides and limits the sliding of the holding sleeve 26 on the rotating block 23, preventing the holding sleeve 26 from falling off the rotating block 23. The left ends of the fixed block 21, the connecting block 22 and the rotating block 23 can be exposed from the holding sleeve 26 to release the angle limit between the fixed block 21, the connecting block 22 and the rotating block 23. At this time, the connecting block 22 and the rotating block 23 will rotate under the elastic action of the coil spring 25. The connecting block 22 changes from horizontal to vertical, causing the fixed block 21, the connecting block 22 and the rotating block 23 to fold into a "]" shape, which can reduce the extension of the holding structure 2 in the length direction of the device, thus reducing the space occupied by the device during use and improving the practicability of the device;

[0032] After use, the snap ring 31 is clamped at the connection between the housing main body 1 and the connecting head 11, and the protective sleeve 32 covers the outside of the connecting head 11, which can protect the connecting head 11 from being damaged by bumps or foreign object erosion, which may impair the functionality of the device and affect the user experience.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A new type of fixed-value torque wrench, comprising a housing main body (1), a connector (11) is arranged at the left end of the housing main body (1), and a controller (12) is installed on the top surface of the housing main body (1), characterized in that: A holding structure (2) is installed on the outer shell body (1). The holding structure (2) includes a fixing block (21). The fixing block (21) is fixedly connected to the right end of the outer shell body (1). The right end of the fixing block (21) is rotatably connected to a connecting block (22) through a rotating shaft. The right end of the connecting block (22) is rotatably connected to a rotating block (23) through a rotating shaft. A limiting guide block (24) is integrally formed on the outer wall of the rotating block (23). A torsion spring (25) is fixedly connected to the connection between the connecting block (22) and the fixing block (21) and the connecting block (22). A holding sleeve (26) is sleeved outside the rotating block (23).

2. The novel fixed-value torque wrench according to claim 1, characterized in that: A protective structure (3) is installed on the connecting head (11). The protective structure (3) includes a snap ring (31). The snap ring (31) is clamped on the top surface of the connection between the outer shell body (1) and the connecting head (11). A protective sleeve (32) is integrally formed at the left end of the snap ring (31).

3. A novel fixed-value torque wrench according to claim 1, characterized in that: The cross-sections of the fixing block (21), the connecting block (22) and the rotating block (23) are all rectangular.

4. A novel fixed-value torque wrench according to claim 1, characterized in that: The holding sleeve (26) is sleeved outside the fixing block (21), the connecting block (22) and the rotating block (23). The outer walls of the fixing block (21), the connecting block (22) and the rotating block (23) are in contact with the inner wall of the holding sleeve (26).

5. A novel fixed-value torque wrench according to claim 1, characterized in that: The limiting guide block (24) is slidably installed on the inner wall of the holding sleeve (26).

6. A novel fixed-value torque wrench according to claim 2, characterized in that: The protective sleeve (32) is sleeved outside the top surface of the connecting head (11).

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