Portable directional torsion calibration wrench

Abstract

The utility model relates to the field of wrenches, and discloses a portable directional torsion calibration wrench which comprises a handle, a round groove is formed in the bottom of the handle, a rotating disc is rotatably installed in the round groove, a connecting rod is arranged at the bottom of the rotating disc, a rotating shaft is rotatably installed at the top of the handle, and a gear is arranged on the outer wall of the rotating shaft in a sleeved mode. The top of the rotating shaft is fixedly provided with a torsion detection device, the top of the handle is slidably provided with a rack, and the wrench further comprises a rotation-free assembly, through the design of the rotation-free assembly, a workpiece can be fastened or loosened under the condition that the wrench body is not rotated, the working capacity of the wrench in a narrow space is greatly improved through the characteristic, and the working efficiency of the wrench is improved. The problem that a traditional wrench cannot work due to space limitation is solved, pulling force of an operator is converted into rotating power of the wrench, operation steps are simplified, working time is shortened, meanwhile, due to the fact that the wrench body does not need to be frequently rotated, physical output of the operator is correspondingly reduced, and working efficiency is further improved.

Description

A portable directional torque calibration wrench Technical Field

[0001] This utility model relates to the field of wrenches, specifically a portable directional torque calibration wrench. Background Technology

[0002] In industries such as machining, automotive repair, and equipment installation, wrenches are a common tool widely used for tightening or loosening fasteners such as bolts and nuts. Traditional wrench operation typically requires the operator to rotate the wrench around the workpiece to achieve the desired tightening or loosening effect. However, in practical applications, especially in confined spaces, this traditional rotation method is often limited. Specifically, when tightening or loosening workpieces in narrow spaces, the limited space on both sides of the workpiece makes it difficult for the operator to rotate the wrench completely around it. This not only increases the difficulty of operation but may also affect work efficiency. In some cases, due to space constraints, traditional wrenches are simply unable to complete the task. Therefore, we propose a portable directional torque calibration wrench. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a portable directional torque calibration wrench, which solves the aforementioned problems.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a portable directional torque calibration wrench, including a handle, a circular groove formed near one end of the bottom of the handle, a rotating disk rotatably mounted in the groove, a connecting rod provided at the bottom of the rotating disk, a rotating shaft rotatably mounted at the top of the handle, a gear sleeved on the outer wall of the rotating shaft, a torque detection device fixedly mounted at the top of the rotating shaft, and a rack slidably mounted at the top of the handle, further comprising:

[0005] A non-rotating component, mounted on the handle, is used to turn the star wrench in confined spaces.

[0006] Preferably, the top of the five-pointed star wrench is fixedly connected to the four corner positions, and the five-pointed star wrench is fixedly connected to the rotating disk through the connecting rods.

[0007] Preferably, the bottom of the rotating shaft extends rotatably into the circular groove and is fixedly connected to the top of the rotating disk.

[0008] Preferably, the top of the handle has a horizontal groove, and the rack is slidably installed in the horizontal groove, with the rack meshing with the gear.

[0009] Preferably, the non-rotating component includes a connecting block, a ring, a pin, an adjusting plate, and a pull plate. The top of the rack is fixedly connected to the connecting block, the top of the connecting block is fixedly connected to the ring, the side of the handle is fixedly connected to the pin, the end of the pin is fixedly connected to the adjusting plate which is rotatably sleeved, and the top of the adjusting plate is fixedly connected to the pull plate near the end.

[0010] Preferably, the non-rotating component further includes an adjusting rod and a side groove. The adjusting plate has a side groove on the side near the handle. The adjusting rod is fixed to the inner wall of the ring, and one end of the adjusting rod is slidably connected in the side groove.

[0011] Compared with the prior art, this utility model provides a portable directional torque calibration wrench, which has the following beneficial effects:

[0012] 1. This portable directional torque calibration wrench, through its design that eliminates the need for rotating components, enables tightening or loosening of workpieces without rotating the wrench body. This feature greatly improves the wrench's ability to operate in confined spaces, solving the problem of traditional wrenches being unable to operate due to space limitations. It also converts the operator's pulling force into the wrench's rotational power, thereby simplifying the operation steps and shortening the operation time. At the same time, since there is no need to frequently rotate the wrench body, the operator's physical exertion is also reduced, further improving work efficiency.

[0013] 2. This portable directional torque calibration wrench features a torque detection device 7, allowing the operator to visually observe the applied torque value and thus achieve precise torque control. This design helps improve work quality and safety, especially in work scenarios with stringent torque requirements. Attached Figure Description

[0014] Figure 1 is a side view of the present invention;

[0015] Figure 2 is a schematic diagram of the five-pointed star wrench of this utility model;

[0016] Figure 3 is a schematic diagram of the end of this utility model;

[0017] Figure 4 is a schematic diagram of the bottom of this utility model;

[0018] Figure 5 is a schematic diagram of the adjustment plate of this utility model.

[0019] In the diagram: 1. Handle; 2. Circular groove; 3. Rotating disc; 4. Connecting rod; 5. Five-pointed star wrench; 6. Rotating shaft; 7. Torque detection device; 8. Gear; 9. Horizontal groove; 10. Rack; 11. Connecting block; 12. Ring; 13. Adjusting rod; 14. Pin; 15. Adjusting plate; 16. Pull plate; 17. Side groove. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please refer to Figures 1-5. A portable directional torque calibration wrench includes a handle 1, a circular groove 2 at one end of the bottom of the handle 1, a rotating disk 3 rotatably mounted in the groove 2, a connecting rod 4 at the bottom of the rotating disk 3, a rotating shaft 6 rotatably mounted on the top of the handle 1, a gear 8 sleeved on the outer wall of the rotating shaft 6, a torque detection device 7 fixed on the top of the rotating shaft 6, and a rack 10 slidably mounted on the top of the handle 1. It also includes:

[0022] A non-rotating component is provided on the handle 1 for rotating the five-pointed star wrench 5 in confined spaces.

[0023] The top of the five-pointed star wrench 5 is fixedly connected to the four corners, and the five-pointed star wrench 5 is fixedly connected to the rotating disk 3 through the connecting rods 4.

[0024] The bottom of the rotating shaft 6 extends into the circular groove 2 and is fixedly connected to the top of the rotating disk 3.

[0025] A horizontal groove 9 is provided at the top of the handle 1, and the rack 10 is slidably installed in the horizontal groove 9, and the rack 10 meshes with the gear 8.

[0026] The non-rotating component includes a connecting block 11, a ring 12, a pin 14, an adjusting plate 15, and a pull plate 16. The top of the rack 10 is fixedly connected to the connecting block 11, and the top of the connecting block 11 is fixedly connected to the ring 12. The side of the handle 1 is fixedly connected to the pin 14, and the end of the pin 14 is fixedly connected to the adjusting plate 15, which is rotatably sleeved. The top of the adjusting plate 15 is fixedly connected to the pull plate 16 near the end.

[0027] The non-rotating component also includes an adjusting rod 13 and a side groove 17. The adjusting plate 15 has a side groove 17 on the side near the handle 1. The adjusting rod 13 is fixed to the inner wall of the ring 12, and one end of the adjusting rod 13 is slidably connected in the side groove 17.

[0028] Structural Description: Handle 1: Serves as the main body of the wrench, providing grip and operation for the user. The design of handle 1 is ergonomic, facilitating prolonged use without causing fatigue.

[0029] Circular groove 2: Located at the bottom of handle 1 near one end, it accommodates and supports the rotation of rotating disk 3. The inner wall of circular groove 2 is precision machined to ensure minimal clearance between it and rotating disk 3, thereby improving the stability and accuracy of rotation.

[0030] Rotating disc 3: Rotatably mounted within the circular groove 2, it is the main transmission component of the wrench. A connecting rod 4 is located at the bottom of the rotating disc 3 to transmit torque to the five-pointed star wrench 5. The top of the rotating disc 3 is fixedly connected to the rotating shaft 6 to ensure synchronized rotation.

[0031] Connecting rod 4: Fixed to the four corners of the top of the five-pointed star wrench 5, and connected to the rotating disk 3 via the connecting rod 4. The design of the connecting rod 4 ensures the even distribution of torque during transmission, avoiding damage caused by single-point force.

[0032] Five-pointed star wrench 5: As a component that directly acts on the workpiece, its shape is designed to meet the specifications of various bolts and nuts. The five-pointed star wrench 5 is connected to the rotating disk 3 via the connecting rod 4 to achieve torque transmission;

[0033] Rotating shaft 6: Rotatably mounted on the top of handle 1, its bottom extending into the circular groove 2 and fixedly connected to the top of rotating disk 3. A torque detection device 7 is fixedly mounted on the top of rotating shaft 6 for real-time monitoring and display of the applied torque value;

[0034] Torque detection device 7: Fixed to the top of the rotating shaft 6, it is used to accurately measure and display the applied torque. The readings of torque detection device 7 are accurate and stable, providing a reliable reference for the operator;

[0035] Gear 8: Sleeve onto the outer wall of the rotating shaft 6 and meshes with the rack 10. The design of gear 8 ensures the smoothness and continuity of torque transmission, avoiding malfunctions caused by poor transmission.

[0036] Horizontal groove 9: Located at the top of handle 1, it accommodates and guides the sliding of rack 10. The inner wall of horizontal groove 9 is precision machined to ensure minimal clearance between it and rack 10, thereby improving sliding stability and accuracy;

[0037] Rack 10: Slidingly mounted within the transverse groove 9 and meshing with the gear 8. The movement of rack 10 is achieved through a drive mechanism that eliminates the need for rotation, thus indirectly rotating the rotating disk 3. The design of rack 10 ensures the accuracy and reliability of the transmission.

[0038] Connecting block 11: Fixed to the top of rack 10, used to connect and support ring 12. The design of connecting block 11 ensures a stable connection between ring 12 and rack 10;

[0039] Ring 12: It is fixed in a ring shape to the top of the connecting block 11 and is one of the main components of the non-rotating assembly. An adjusting rod 13 is fixed to the inner wall of the ring 12, which is used to cooperate with the side groove 17 on the adjusting plate 15 to realize the transmission conversion;

[0040] Adjusting rod 13: Fixed to the inner wall of ring 12, with one end slidably connected to the side groove 17 of adjusting plate 15. The design of adjusting rod 13 ensures the relative movement between ring 12 and adjusting plate 15, thereby realizing the conversion and adjustment of transmission.

[0041] Pin 14: Fixed to the side of handle 1, with an adjusting plate 15 rotatably sleeved at its end. The design of pin 14 provides stable support and a rotation axis for adjusting plate 15;

[0042] Adjusting plate 15: Rotatably sleeved at the end of pin 14, it is one of the key components of the non-rotating assembly. A pull plate 16 is fixedly connected to the top of the adjusting plate 15 near its end, allowing the operator to pull it to initiate the transmission. Simultaneously, a side groove 17 is provided on the adjusting plate 15, which cooperates with the adjusting rod 13 to achieve transmission switching.

[0043] Pull plate 16: Fixed to the top of the adjusting plate 15 near the end, allowing the operator to pull it to activate the non-rotating component. The pull plate 16 is ergonomically designed for easy gripping and application of force by the operator.

[0044] Side groove 17: Located on the side of the adjusting plate 15 near the handle 1, it is used to accommodate and guide the sliding of the adjusting rod 13. The design of the side groove 17 ensures smooth and continuous relative movement between the adjusting rod 13 and the adjusting plate 15.

[0045] Working principle: When in use, first attach the five-pointed star wrench 5 to the workpiece, and use the pull plate 16 to pull the adjusting plate 15 backward. During the rotation of the adjusting plate 15 on the pin shaft 14, it gradually rotates from an inclined position to a vertical position. The adjusting rod 13 slides in the side groove 17 through the rotation of the adjusting plate 15. The ring 12 drives the bottom rack 10 to slide in the horizontal groove 9 through the movement of the adjusting rod 13. The gear 8 meshes with the rack 10. During the rotation of the rack 10, the gear 8 drives the rotating disk 3 to rotate in the circular groove 2. At the same time, the five-pointed star wrench 5 is rotated through the four sets of connecting rods 4. During the rotation of the rotating shaft 6, the torque is observed through the torque detection device 7.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable directional torque calibration wrench, comprising a handle (1), characterized in that: The handle (1) has a circular groove (2) at one end of its bottom. A rotating disk (3) is rotatably installed in the circular groove (2). A connecting rod (4) is provided at the bottom of the rotating disk (3). A rotating shaft (6) is rotatably installed at the top of the handle (1). A gear (8) is sleeved on the outer wall of the rotating shaft (6). A torque detection device (7) is fixed at the top of the rotating shaft (6). A rack (10) is slidably installed at the top of the handle (1). The handle (1) also includes a non-rotating component, which is set on the handle (1) and is used to rotate the five-pointed star wrench (5) in a narrow space.

2. The portable directional torque calibration wrench according to claim 1, characterized in that: The top of the five-pointed star wrench (5) is fixedly connected to the four corners with connecting rods (4), and the five-pointed star wrench (5) is fixedly connected to the rotating disk (3) through the connecting rods (4).

3. A portable directional torque calibration wrench according to claim 1, characterized in that: The bottom of the rotating shaft (6) extends into the circular groove (2) and is fixedly connected to the top of the rotating disk (3).

4. A portable directional torque calibration wrench according to claim 1, characterized in that: The top of the handle (1) is provided with a horizontal groove (9), and the rack (10) is slidably installed in the horizontal groove (9), and the rack (10) meshes with the gear (8).

5. A portable directional torque calibration wrench according to claim 4, characterized in that: The non-rotating component includes a connecting block (11), a ring (12), a pin (14), an adjusting plate (15), and a pull plate (16). The top of the rack (10) is fixedly connected to the connecting block (11), and the top of the connecting block (11) is fixedly connected to the ring (12). The side of the handle (1) is fixedly connected to the pin (14), and the end of the pin (14) is fixedly connected to the adjusting plate (15) which is rotatably sleeved. The top of the adjusting plate (15) is fixedly connected to the pull plate (16) near the end.

6. A portable directional torque calibration wrench according to claim 5, characterized in that: The non-rotation component also includes an adjusting rod (13) and a side groove (17). The adjusting plate (15) has a side groove (17) on the side near the handle (1). The adjusting rod (13) is fixed to the inner wall of the ring (12). One end of the adjusting rod (13) is slidably connected in the side groove (17).

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