Electric wrench striking block with adjustable torque
By incorporating components such as protective covers, positioning blocks, and locking pins into the electric wrench, the lack of protection for the torque adjustment knob is solved, achieving torque stability and safety, preventing unexpected changes and vibration deviations, and ensuring operational accuracy and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANCHENG DAFENG TIANXING PRECISION FORGING CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-22
Smart Images
Figure CN224266035U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electric wrench technology, and in particular relates to an adjustable torque electric wrench striking block. Background Technology
[0002] The striking block of an electric wrench is a crucial component, primarily used to provide rotational impact force to help loosen or tighten fasteners such as bolts and nuts. The striking block is one of the core components of an electric wrench, especially in impact wrenches, where it plays a vital role.
[0003] In existing technologies, the torque adjustment knob of electric wrenches lacks protective measures during use. This means that operators may accidentally touch the knob, causing unexpected changes in the torque setting. Such changes may result in the force applied by the wrench not meeting the predetermined standard, thus affecting work quality and even causing safety accidents. Especially in high-load working environments where precise torque control is required, this could lead to equipment damage, loosening or over-tightening of fasteners, and in severe cases, injury to operators. Therefore, we propose an adjustable torque electric wrench striking block. Utility Model Content
[0004] The purpose of this utility model is to provide an adjustable torque electric wrench striking block. Through the design of components such as a protective cover, positioning block, and locking post, it solves the problem in the prior art where the torque adjustment knob lacks protection, causing torque changes during use.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is an adjustable torque electric wrench striking block, including an electric wrench body, a handle fixedly connected to the circumferential surface of the electric wrench body, a start button provided inside the handle, a torque adjustment knob provided on the side of the electric wrench body, and a protective mechanism provided on the side of the electric wrench body.
[0007] The protective mechanism includes a support block, which is fixedly connected to the circumferential surface of the electric wrench body. A control shaft is rotatably connected to the side of the support block, and a protective cover is fixedly connected to the circumferential surface of the control shaft. A positioning groove is provided on the side of the electric wrench body, and a positioning block is fixedly connected to the side of the protective cover. The purpose of this mechanism is to protect the torque adjustment knob and prevent workers from accidentally triggering the torque adjustment knob, which could lead to an accident.
[0008] Furthermore, a locking plate is fixedly connected to the side of the electric wrench body, and a mounting block is fixedly connected to the side of the protective cover. A locking pin is slidably connected inside the mounting block. The purpose of this is to lock the protective cover and prevent it from being opened accidentally.
[0009] Furthermore, a compression spring is fixedly connected inside the mounting block, and one end of the compression spring away from the inside of the mounting block is fixedly connected to one end of the locking pin. The purpose of this is to ensure that the locking pin can stably enter the locking plate.
[0010] Furthermore, there are two locking plates, locking posts, and compression springs, which are symmetrical to each other along the vertical central axis of the protective cover, in order to ensure a better locking effect of the protective cover.
[0011] Furthermore, the protective cover is provided with an anti-deviation mechanism, which includes a support shaft rotatably connected to the inner wall of the protective cover. A limiting rod is fixedly connected to the circumferential surface of the support shaft, and a limiting groove is provided on the circumferential surface of the torque adjustment knob. The purpose of this is to prevent the electric wrench body from vibrating during operation, which would cause the torque adjustment knob to adjust automatically.
[0012] Furthermore, a torsion spring is fixedly connected to the inner wall of the protective cover, and the end of the torsion spring away from the inner wall of the protective cover is fixedly connected to the circumferential surface of the support shaft. The purpose of this is to ensure that the support shaft can automatically reset and reduce manual intervention.
[0013] Furthermore, there are two of the support shaft, limiting rod, and torsion spring, which are symmetrical to each other along the vertical central axis of the protective cover, in order to ensure better anti-deviation effect.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model utilizes the interoperability of components such as the protective cover, positioning block, and locking pin in its protective mechanism. When the electric wrench is needed, the operator adjusts the torque knob to the appropriate size, then presses the protective cover, causing it to rotate via the control shaft and enter the positioning slot through the positioning block for positioning. As the protective cover rotates, the locking plate causes the locking pin to enter the mounting block, and finally, the spring force of the compression spring locks the locking pin within the locking plate. This design effectively protects the torque adjustment knob, preventing accidental contact during operation, ensuring the stability and safety of the wrench, and avoiding accidents.
[0016] 2. This utility model utilizes the cooperation between components such as the limiting rod, limiting groove, and torsion spring of the anti-deviation mechanism. When the protective cover rotates, the limiting rod is moved by the support shaft. When the limiting rod is aligned with the limiting groove, the elastic force of the torsion spring causes the limiting rod to enter the limiting groove, thus limiting the displacement of the torque adjustment knob. This design achieves the effect of limiting the torque adjustment knob, preventing the torque adjustment knob from deviating due to vibration of the electric wrench body during operation, and ensuring the stability and accuracy of operation.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a structural schematic diagram of the overall three-dimensional appearance of the electric wrench of this utility model;
[0020] Figure 2 This is a three-dimensional enlarged structural schematic diagram of the torque adjustment knob of this utility model;
[0021] Figure 3 This is a three-dimensional enlarged structural diagram of the protective cover of this utility model;
[0022] Figure 4 This utility model Figure 2 A three-dimensional magnified structural diagram of A.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Electric wrench body; 2. Handle; 3. Start button; 4. Torque adjustment knob; 5. Protective mechanism; 51. Support block; 52. Control shaft; 53. Protective cover; 54. Positioning groove; 55. Positioning block; 57. Locking plate; 58. Mounting block; 59. Locking post; 510. Compression spring; 6. Anti-deviation mechanism; 61. Support shaft; 62. Limiting rod; 63. Limiting groove; 64. Torsion spring. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-4 This utility model is an adjustable torque electric wrench striking block, including an electric wrench body 1, a handle 2 fixedly connected to the circumferential surface of the electric wrench body 1, a start button 3 provided inside the handle 2, a torque adjustment knob 4 provided on the side of the electric wrench body 1, and a protective mechanism 5 provided on the side of the electric wrench body 1.
[0027] The protective mechanism 5 includes a support block 51, which is fixedly connected to the circumferential surface of the electric wrench body 1. A control shaft 52 is rotatably connected to the side of the support block 51, and a protective cover 53 is fixedly connected to the circumferential surface of the control shaft 52. A positioning groove 54 is provided on the side of the electric wrench body 1, and a positioning block 55 is fixedly connected to the side of the protective cover 53. The purpose of this is to protect the torque adjustment knob 4 and prevent the operator from accidentally triggering the torque adjustment knob 4, which could lead to an accident.
[0028] As shown in the figure, a locking plate 57 is fixedly connected to the side of the electric wrench body 1, and a mounting block 58 is fixedly connected to the side of the protective cover 53. A locking pin 59 is slidably connected inside the mounting block 58, the purpose of which is to lock the protective cover 53 and prevent it from being opened accidentally.
[0029] As shown in the figure, a compression spring 510 is fixedly connected inside the mounting block 58. One end of the compression spring 510 away from the inside of the mounting block 58 is fixedly connected to one end of the locking pin 59. The purpose is to ensure that the locking pin 59 can stably enter the locking plate 57.
[0030] As shown in the figure, there are two locking plates 57, locking pins 59 and compression springs 510, which are symmetrical to each other along the vertical central axis of the protective cover 53. The purpose is to ensure that the protective cover 53 has a better locking effect.
[0031] As shown in the figure, the protective cover 53 is equipped with an anti-deviation mechanism 6. The anti-deviation mechanism 6 includes a support shaft 61, which is rotatably connected to the inner wall of the protective cover 53. A limiting rod 62 is fixedly connected to the circumferential surface of the support shaft 61. A limiting groove 63 is opened on the circumferential surface of the torque adjustment knob 4. The purpose is to prevent the electric wrench body 1 from vibrating during operation, which would cause the torque adjustment knob 4 to adjust automatically.
[0032] As shown in the figure, a torsion spring 64 is fixedly connected to the inner wall of the protective cover 53. The end of the torsion spring 64 away from the inner wall of the protective cover 53 is fixedly connected to the circumferential surface of the support shaft 61. The purpose is to ensure that the support shaft 61 can automatically reset and reduce manual intervention.
[0033] As shown in the figure, there are two of the following: support shaft 61, limiting rod 62 and torsion spring 64. They are symmetrical to each other along the vertical central axis of the protective cover 53. The purpose of this is to ensure better anti-deviation effect.
[0034] One specific application of this embodiment is as follows: When the electric wrench body 1 needs to be used, the operator observes the working situation and turns the torque adjustment knob 4 according to the requirements to adjust the torque of the electric wrench body 1 to a suitable size. Then, the operator presses the protective cover 53, causing the protective cover 53 to rotate through the control shaft 52. The protective cover 53 enters the positioning groove 54 through the positioning block 55 to position the protective cover 53. During the rotation of the protective cover 53, the locking pin 59 enters the mounting block 58 through the locking plate 57. After the protective cover 53 is positioned, the locking pin 59 enters the locking plate 57 through the elasticity of the compression spring 510 to lock the protective cover 53, preventing accidental contact with the torque adjustment knob 4 during operation.
[0035] While the protective cover 53 rotates, it drives the limiting rod 62 to move through the support shaft 61. When the limiting rod 62 coincides with the limiting groove 63, the limiting rod 62 rotates through the elastic force of the torsion spring 64, so that the limiting rod 62 enters the limiting groove 63 and limits the torque adjustment knob 4, preventing the electric wrench body 1 from vibrating during operation and causing the torque adjustment knob 4 to deviate.
[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An adjustable torque electric wrench striking block, characterized in that, The electric wrench body (1) is provided with a handle (2) fixedly connected to the circumferential surface of the electric wrench body (1), a start button (3) is provided inside the handle (2), a torque adjustment knob (4) is provided on the side of the electric wrench body (1), and a protective mechanism (5) is provided on the side of the electric wrench body (1). The protective mechanism (5) includes a support block (51), which is fixedly connected to the circumferential surface of the electric wrench body (1). A control shaft (52) is rotatably connected to the side of the support block (51), and a protective cover (53) is fixedly connected to the circumferential surface of the control shaft (52). A positioning groove (54) is provided on the side of the electric wrench body (1), and a positioning block (55) is fixedly connected to the side of the protective cover (53).
2. The adjustable torque electric wrench striking block according to claim 1, characterized in that, A locking plate (57) is fixedly connected to the side of the electric wrench body (1), and a mounting block (58) is fixedly connected to the side of the protective cover (53). A locking pin (59) is slidably connected inside the mounting block (58).
3. The adjustable torque electric wrench striking block according to claim 2, characterized in that, A compression spring (510) is fixedly connected inside the mounting block (58), and one end of the compression spring (510) away from the inside of the mounting block (58) is fixedly connected to one end of the locking post (59).
4. The adjustable torque electric wrench striking block according to claim 3, characterized in that, The number of the locking plate (57), locking post (59) and compression spring (510) is two, and they are symmetrical to each other along the vertical central axis of the protective cover (53).
5. The adjustable torque electric wrench striking block according to claim 4, characterized in that, The protective cover (53) is provided with an anti-deviation mechanism (6). The anti-deviation mechanism (6) includes a support shaft (61). The support shaft (61) is rotatably connected to the inner wall of the protective cover (53). A limiting rod (62) is fixedly connected to the circumferential surface of the support shaft (61). A limiting groove (63) is provided on the circumferential surface of the torque adjustment knob (4).
6. The adjustable torque electric wrench striking block according to claim 5, characterized in that, A torsion spring (64) is fixedly connected to the inner wall of the protective cover (53), and one end of the torsion spring (64) away from the inner wall of the protective cover (53) is fixedly connected to the circumferential surface of the support shaft (61).
7. The adjustable torque electric wrench striking block according to claim 6, characterized in that, The number of the support shaft (61), the limiting rod (62) and the torsion spring (64) is two, and they are symmetrical to each other along the vertical central axis of the protective cover (53).