一种高扭力的复合式换向棘轮扳手
By incorporating a torque adjustment mechanism into the ratchet wrench, the problem of insufficient torque caused by a fixed handle length is solved, achieving a high-torque turning effect in confined spaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JINJU POWDER METALLURGY
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
The fixed handle length of existing ratchet wrenches makes it impossible to use longer handles in confined spaces, resulting in insufficient torque and inability to tighten or loosen bolts.
A high-torque composite reversing ratchet wrench was designed. By setting a torque adjustment structure on the handle, including components such as a rotating seat, limiting teeth and telescopic shell, the angle between the handle and the wrench seat can be adjusted to increase the torque.
Without increasing the handle length, high torque can be achieved by adjusting the angle between the handle and the wrench holder to tighten the nut.
Smart Images
Figure CN224509535U_ABST
Abstract
Claims
1. A high torque composite reversing ratchet wrench comprising a handle (1), characterized in that: It also includes a torque adjustment structure (2) provided on the handle (1) and a ratchet wrench structure (3) provided on the torque adjustment structure (2). The torque adjustment structure (2) includes a rotating seat (4), a first limiting tooth (5), a rotating shell (6), a second limiting tooth (7), a telescopic shell (8), a limiting seat (9), and a third limiting tooth (10). The rotating seat (4) is fixedly mounted on the front end of the handle (1). The first limiting tooth (5) is located inside the rotating seat (4). The rotating shell (6) is rotated around the rotating seat (4). The second limiting tooth (7) is located at the upper and lower ends inside the rotating shell (6). The telescopic shell (8) is fixedly mounted above the rotating shell (6). The limiting seat (9) is vertically slidably mounted inside the rotating seat (4) and the rotating shell (6). The third limiting tooth (10) is located around the outer side of the limiting seat (9). The ratchet wrench structure (3) includes a connecting seat (13), a wrench seat (14), a protective cover (15), a box-shaped sleeve (16), a ratchet, a rotating shaft (18), a reversing block (19), a rotating knob (20), a stop block (21), and a second spring (22). The connecting seat (13) is fixedly mounted on the outer side of the rotating housing (6) and located opposite the rotating groove on the rotating housing (6). The wrench seat (14) is fixedly mounted on the connecting seat (13). The protective cover (15) is connected to the opening of the wrench seat (14) by screws. The box-shaped sleeve (16) passes through the wrench seat (14) and the protective cover (15) and rotates. The ratchet (17) is fixedly mounted on the plum blossom sleeve shaft (16) and located inside the wrench seat (14). The rotating shaft (18) passes through the wrench seat (14) and is rotatably mounted. The reversing block (19) is fixedly mounted at one end of the rotating shaft (18) and located inside the wrench seat (14). The rotating knob (20) is fixedly mounted at the other end of the rotating shaft (18) and located outside the wrench seat (14). The stop block (21) is rotatably mounted at the bottom of the wrench seat (14) and is symmetrically arranged on the left and right. One end of the spring (22) is fixedly mounted on the inner wall of the wrench seat (14) and the other end is fixedly mounted in the upper part of the stop block (21).
2. A high torque composite reversing ratchet wrench according to claim 1, wherein: The torque adjustment structure (2) further includes a pull column (11) and a spring (12). The pull column (11) passes through the telescopic shell (8) and is fixed on the limiting seat (9). One end of the spring (12) is fixed on the limiting seat (9) and the other end is fixed on the inner wall of the telescopic shell (8).
3. A high torque composite reversing ratchet wrench according to claim 2, wherein: The rotating shell (6) is circular, with a circular groove inside and an opening at the top. The rotating shell (6) has a 60-degree rotating groove on its side, and the handle (1) is rotatably mounted through the rotating groove on the rotating shell (6).
4. A high torque composite reversing ratchet wrench according to claim 3, wherein: The limiting tooth three (10) is engaged with the limiting tooth one (5) and the limiting tooth two (7).
5. A high torque composite reversing ratchet wrench as defined in claim 1 wherein: The commutator block (19) is arranged in a circular shape on the top and a triangular shape on the bottom.