Folding type manual torsional shear wrench
By designing a handle adjustment mechanism for a folding manual twist-shear wrench, the problems of inconvenience in carrying and inflexibility in use caused by a fixed handle length are solved, and the handle length can be flexibly adjusted and used conveniently.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HANPU MASCH IND CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-28
AI Technical Summary
The fixed handle length of existing manual torque shear wrenches makes them inconvenient to carry and inflexible to use in confined spaces, and the handle length cannot be adjusted according to task requirements.
A folding manual torque shear wrench was designed, which adopts a handle adjustment mechanism. The handle length can be adjusted by the cooperation of a compression spring and a locking block, and the handle can be fixed by the movement of the pressing sleeve and the movable plate.
It allows for flexible adjustment of the handle length, reducing the space required for carrying and improving the flexibility and convenience of use in confined spaces.
Smart Images
Figure CN224169697U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manual torque shear wrenches, and in particular to a folding type manual torque shear wrench. Background Technology
[0002] A manual torque shear wrench is a hand tool specifically designed for tightening torque-shear type high-strength bolts. Its unique design and focused function work together through two sleeves: the outer sleeve applies torque to the nut, while the inner sleeve engages the bolt's split head, twisting it in the opposite direction. When the applied torque reaches the bolt's set value, the split head breaks off precisely, indicating that the bolt has reached the predetermined tightness. This process not only ensures the reliability and safety of the bolted connection but also prevents bolt damage or connection failure due to overtightening. Manual torque shear wrenches are widely used in bridges, construction, machinery, and other fields requiring high-strength bolted connections. Their ease of operation and precise tightening capabilities make them highly favored by engineering technicians.
[0003] In the current technology, manual torque scissor wrenches are usually designed with a relatively long handle for ease of use. However, because the handle is long and fixed and cannot be folded or adjusted, it takes up a lot of space when carried, which makes it inconvenient to carry the manual torque scissor wrench. At the same time, because the handle length is fixed, it is impossible to adjust the handle length according to the task requirements in narrow or restricted working environments, which further complicates the use of the manual torque scissor wrench and reduces the flexibility of use. Utility Model Content
[0004] The main purpose of this utility model is to provide a folding manual twist-shear wrench, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A folding manual twist-shear wrench includes a ratchet head, an adjusting head on the right side of the ratchet head, and a star-shaped head at the bottom of the ratchet head. A handle adjusting mechanism is located on the right side of the adjusting head, and the handle adjusting mechanism includes a fixed rod, a handle adjusting cylinder, a guide rod, a compression spring, a pressing sleeve, a movable plate, and a locking block. The fixed rod is fixedly connected to the side wall of the adjusting head, and the handle adjusting cylinder is movably connected to the outside of the fixed rod via a transverse plate inside the cylinder. The guide rod is fixedly connected inside the transverse plate, and the compression spring is sleeved on the outside of the guide rod. The pressing sleeve is sleeved on the guide rod, and the movable plate is fixedly connected to the outer wall of the pressing sleeve. The locking block is fixedly connected to the side of the movable plate.
[0007] Furthermore, the fixing rod is fixedly installed on the right side wall of the adjusting head, and a transverse opening is provided on the outer wall of the fixing rod.
[0008] Furthermore, a transverse groove is provided on the inner bottom surface of the transverse opening, and several slots are provided in a transverse array on one side wall of the transverse groove.
[0009] Furthermore, the handle adjusting cylinder is fitted outside the fixed rod, and a horizontal plate is fixedly installed inside the opening of the handle adjusting cylinder, the horizontal plate being movably installed inside the horizontal opening.
[0010] Furthermore, the outer wall of the handle adjusting cylinder is provided with a movable hole that penetrates the horizontal plate, and the inner bottom surface of the horizontal plate is provided with a movable opening that communicates with the movable hole. A retaining ring is fixedly installed in the opening of the movable hole, and the guide rod is fixedly installed at the bottom end of the movable hole. The compression spring is sleeved on the outside of the guide rod, and one end of the compression spring is fixedly installed at the bottom of the movable hole. The other end of the compression spring is fixedly installed with a pressing sleeve, and the pressing sleeve is sleeved on the outside of the guide rod and passes through the retaining ring. A movable plate is fixedly installed on the outer wall of the pressing sleeve, and the movable plate passes through the movable opening. A locking block corresponding to the locking slot is also fixedly installed at the front end of the side wall of the movable plate.
[0011] Furthermore, an anti-slip rubber sleeve is fixedly fitted on the right end of the outer wall of the handle adjustment cylinder.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] In this invention, the handle adjustment mechanism is designed to work with a manual torque scissor wrench. After pressing the protruding pressing sleeve on the outer wall of the handle adjustment cylinder until it can no longer be pressed, maintain the pressing force and pull the handle adjustment cylinder to the right. This allows the handle adjustment cylinder to move outside the fixed rod through the transverse opening of the transverse plate until the manual torque scissor wrench is adjusted to the appropriate length. Then, release the pressing force on the pressing sleeve, and under the elastic force of the compression spring, push the pressing sleeve to move the movable plate within the movable opening and transverse groove. This allows the locking block to enter the corresponding slot, thus fixing the handle adjustment cylinder. This facilitates the adjustment of the manual torque scissor wrench and its handle length, enabling it to meet different task requirements in narrow or restricted working environments. Furthermore, by extending and folding the handle length, the space occupied by the manual torque scissor wrench during carrying is reduced. This not only makes the manual torque scissor wrench easier to carry but also facilitates its adjustment and improves its flexibility. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the overall structure of the fixing rod of this utility model;
[0016] Figure 3 This is a cross-sectional view of the handle adjustment mechanism of this utility model.
[0017] Figure 4 For the present utility model Figure 3 An enlarged schematic diagram of the structure at point A.
[0018] In the diagram: 1. Ratchet head; 2. Adjusting head; 3. Sprite head; 4. Handle adjustment mechanism; 5. Fixed rod; 6. Horizontal opening; 7. Horizontal groove; 8. Slot; 9. Handle adjustment cylinder; 10. Anti-slip rubber sleeve; 11. Horizontal plate; 12. Movable hole; 13. Movable opening; 14. Retaining ring; 15. Guide rod; 16. Compression spring; 17. Pressing sleeve; 18. Movable plate; 19. Locking block. Detailed Implementation
[0019] 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.
[0020] like Figure 1 - Figure 4 As shown, a folding manual twist cutter wrench includes a ratchet head 1, an adjusting head 2 on the right side of the ratchet head 1, and a swivel head 3 at the bottom of the ratchet head 1. A handle adjusting mechanism 4 is located on the right side of the adjusting head 2. The handle adjusting mechanism 4 includes a fixed rod 5, a handle adjusting cylinder 9, a guide rod 15, a compression spring 16, a pressing sleeve 17, a movable plate 18, and a locking block 19. The fixed rod 5 is fixedly connected to the side wall of the adjusting head 2. The handle adjusting cylinder 9 is movably connected to the outside of the fixed rod 5 via a transverse plate 11 inside the cylinder. The guide rod 15 is fixedly connected inside the transverse plate 11. The compression spring 16 is sleeved on the outside of the guide rod 15. The pressing sleeve 17 is sleeved on the guide rod 15. The movable plate 18 is fixedly connected to the outer wall of the pressing sleeve 17. The locking block 19 is fixedly connected to the side of the movable plate 18.
[0021] like Figure 2 As shown, the fixing rod 5 is fixedly installed on the right side wall of the adjusting head 2, and a transverse opening 6 is provided on the outer wall of the fixing rod 5. The transverse opening 6 is used to guide the movement of the handle adjusting cylinder 9 in conjunction with the transverse plate 11.
[0022] like Figure 2As shown, a transverse groove 7 is provided on the inner bottom surface of the transverse opening 6. The transverse groove 7 can ensure that the movable plate 18 and the locking block 19 move synchronously in the transverse groove 7 when the transverse plate 11 moves. Furthermore, several locking slots 8 are provided in a transverse array on one side wall of the transverse groove 7. The locking slots 8 are used to cooperate with the locking block 19 to adjust and limit the handle adjusting cylinder 9.
[0023] like Figure 3 and Figure 4 As shown, the handle adjusting cylinder 9 is fitted outside the fixed rod 5, and a horizontal plate 11 is fixedly installed inside the opening of the handle adjusting cylinder 9. The horizontal plate 11 is movably installed inside the horizontal opening 6. When the handle adjusting cylinder 9 is moved to adjust the length of the entire handle, the handle adjusting cylinder 9 can move outside the fixed rod 5 through the horizontal plate 11 along the horizontal opening 6.
[0024] like Figure 3 and Figure 4 As shown, a movable hole 12 penetrating the horizontal plate 11 is provided on the outer wall of the handle adjusting cylinder 9, and a movable opening 13 communicating with the movable hole 12 is provided on the inner bottom surface of the horizontal plate 11. A retaining ring 14 is fixedly installed in the opening of the movable hole 12, and a guide rod 15 is fixedly installed at the bottom end of the hole of the movable hole 12. A compression spring 16 is fitted on the outside of the guide rod 15, and one end of the compression spring 16 is fixedly installed at the bottom of the hole of the movable hole 12. A pressing sleeve 17 is fixedly installed on the other end of the compression spring 16, and the pressing sleeve 17 is fitted on the outside of the guide rod 15 and passes through the retaining ring 14. A movable plate 18 is fixedly installed on the outer wall of the pressing sleeve 17, and the movable plate 18 passes through... The movable opening 13 and the front end of the side wall of the movable plate 18 are also fixedly installed with a locking block 19 corresponding to the locking slot 8. Pressing the pressing sleeve 17 restricts the handle adjusting cylinder 9, allowing the handle adjusting cylinder 9 to move smoothly outside the fixed rod 5. After releasing the pressing sleeve 17, the compression spring 16 can perform an elastic recovery and extension operation, and push the pressing sleeve 17 to move the movable plate 18 in the movable opening 13 and the transverse groove 7, allowing the locking block 19 to be inserted into the corresponding locking slot 8, so as to limit and fix the handle adjusting cylinder 9, thereby facilitating the extension and retraction adjustment of the handle length and preventing the handle adjusting cylinder 9 from moving when gripped.
[0025] like Figure 3 and Figure 4 As shown, an anti-slip rubber sleeve 10 is fixedly fitted on the right end of the outer wall of the handle adjustment cylinder 9. The anti-slip rubber sleeve 10 can prevent the user from slipping when holding the handle adjustment cylinder 9, and ensure the grip strength of the handle when using a manual torque wrench.
[0026] The specific operating principle of the handle adjustment mechanism 4 in conjunction with the manual torque shear wrench is as follows:
[0027] When adjusting the length of the manual twist-shear wrench, hold the handle adjustment cylinder 9 and press the pressing sleeve 17 protruding from the outer wall of the handle adjustment cylinder 9 with your thumb. The pressing sleeve 17 will move along the guide rod 15 through the retaining ring 14 into the movable hole 12 in the transverse plate 11, forcing the compression spring 16 fitted outside the guide rod 15 to tighten. The pressing sleeve 17 will also drive the movable plate 18 to move within the movable opening 13 and transverse groove 7 on the bottom surface of the transverse plate 11. The locking block 19 installed on the side wall of the movable plate 18 will move out of the locking groove 8 in the current transverse groove 7 until the pressing sleeve 17 can no longer be pressed. Keep the pressing force on the pressing sleeve 17 unchanged, and move the handle adjustment cylinder 9 to the right with the hand holding the handle adjustment cylinder 9. The handle adjustment cylinder 9 will move outside the fixing rod 5 installed on the right side wall of the adjustment head 2, and the transverse plate 11 installed inside the opening of the handle adjustment cylinder 9 will move outside the fixing rod 5. The handle adjuster 9 moves in the horizontal opening 6, and the movable plate 18 also moves in the horizontal groove 7 until the handle adjuster 9 is moved to the appropriate distance and the handle is adjusted to the appropriate length. Then, release the thumb pressing the pressing sleeve 17, so that the compression spring 16 can perform an elastic recovery and extension operation. Push the pressing sleeve 17 to move outward, and the pressing sleeve 17 will drive the movable plate 18 to move in the movable opening 13 and the horizontal groove 7 until the locking block 19 on the movable plate 18 is inserted into the corresponding locking groove 8. Then, the handle adjuster 9 can be fixed to the outside of the fixed rod 5. Hold the anti-slip rubber sleeve 10 on the outer wall of the handle adjuster 9 to use the manual torque shear wrench. This can achieve the purpose of facilitating the adjustment of the manual torque shear wrench and the length of the handle, so that it can meet the different task use needs in narrow or restricted working environments. It not only facilitates the adjustment and use of the manual torque shear wrench, but also improves the flexibility of the manual torque shear wrench.
[0028] After using the manual torque shear wrench, press the protruding pressing sleeve 17 on the outer wall of the handle adjusting cylinder 9 until it can no longer be pressed. This will release the limiting fixation of the handle adjusting cylinder 9. While keeping the pressure unchanged, move the handle adjusting cylinder 9 to the left until it can no longer move. Then release the pressure on the pressing sleeve 17 and re-limit the handle adjusting cylinder 9. This will extend and fold the handle to its shortest length, thereby reducing the space occupied by the manual torque shear wrench when carrying it, and thus making it easier to carry and use.
[0029] 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 folding manual twist-shear wrench, comprising a ratchet head (1), an adjusting head (2) on the right side of the ratchet head (1), and a swivel head (3) at the bottom end of the ratchet head (1), characterized in that: The right side of the adjusting head (2) is provided with a handle adjusting mechanism (4), and the handle adjusting mechanism (4) includes a fixed rod (5), a handle adjusting cylinder (9), a guide rod (15), a compression spring (16), a pressing sleeve (17), a movable plate (18), and a locking block (19). The fixed rod (5) is fixedly connected to the side wall of the adjusting head (2), and the handle adjusting cylinder (9) is movably connected to the outside of the fixed rod (5) through the transverse plate (11) inside the cylinder. The guide rod (15) is fixedly connected inside the transverse plate (11), and the compression spring (16) is sleeved on the outside of the guide rod (15). The pressing sleeve (17) is sleeved on the guide rod (15), and the movable plate (18) is fixedly connected to the outer wall of the pressing sleeve (17). The locking block (19) is fixedly connected to the side of the movable plate (18).
2. A folding manual torque shear wrench according to claim 1, characterized in that: The fixing rod (5) is fixedly installed on the right side wall of the adjusting head (2), and a horizontal opening (6) is provided on the outer wall of the fixing rod (5).
3. A folding manual torque shear wrench according to claim 2, characterized in that: The inner bottom surface of the transverse opening (6) is provided with a transverse groove (7), and a number of slots (8) are provided in a transverse array on one side wall of the transverse groove (7).
4. A folding manual torque shear wrench according to claim 3, characterized in that: The handle adjustment cylinder (9) is fitted outside the fixed rod (5), and a horizontal plate (11) is fixedly installed inside the opening of the handle adjustment cylinder (9). The horizontal plate (11) is movably installed inside the horizontal opening (6).
5. A folding manual torque shear wrench according to claim 4, characterized in that: The outer wall of the handle adjustment cylinder (9) is provided with a movable hole (12) that passes through the horizontal plate (11), and the inner bottom surface of the horizontal plate (11) is provided with a movable opening (13) that communicates with the movable hole (12). A retaining ring (14) is fixedly installed in the opening of the movable hole (12), and a guide rod (15) is fixedly installed at the bottom end of the hole of the movable hole (12). The compression spring (16) is sleeved on the outside of the guide rod (15), and one end of the compression spring (16) is fixedly installed at the bottom of the hole of the movable hole (12). The other end of the compression spring (16) is fixedly installed with a pressing sleeve (17), and the pressing sleeve (17) is sleeved on the outside of the guide rod (15) and passes through the retaining ring (14). A movable plate (18) is fixedly installed on the outer wall of the pressing sleeve (17), and the movable plate (18) passes through the movable opening (13). A locking block (19) corresponding to the locking groove (8) is also fixedly installed on the front end of the side wall of the movable plate (18).
6. A folding manual torque shear wrench according to claim 5, characterized in that: The outer right end of the handle adjustment cylinder (9) is fixedly fitted with an anti-slip rubber sleeve (10).