Ratchet wrench

Abstract

The utility model discloses a ratchet wrench which comprises a wrench grab handle, a wrench head and an auxiliary wrenching mechanism. The auxiliary wrenching mechanism is arranged on the surface of the wrench grab handle, the wrench head is in butt joint with a bolt in a sleeved mode, then the auxiliary grab handle is overturned to be in the vertical state along the hinge seat, and the auxiliary grab handle can be held to control the wrench grab handle to perform reciprocating wrenching motion with the wrench head as the rotating center. The auxiliary turning mechanism can better adapt to the operation mode of a ratchet wrench, so that the working efficiency is improved, a positioning buckle piece is arranged at the bottom of the connecting sleeve, when the position of the connecting sleeve needs to be adjusted, a pressing plate is pressed firstly to force the positioning buckle piece to tilt, the connecting sleeve can be moved for position adjustment, and finally the pressing plate is loosened; the positioning buckle piece is buckled back to the inner side of the tooth groove through elastic force provided by the torsion spring rotating shaft, position locking of the connecting sleeve is achieved, and therefore position adjustment of the connecting sleeve is completed, a user can adjust the position according to operation habits, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of ratchet wrench technology, specifically a ratchet wrench. Background Technology

[0002] A ratchet wrench is a manual screw tightening and loosening tool. Its ratchet mechanism allows the pawl to push the ratchet to rotate when the wrench rotates forward, and it can automatically slip when rotating in the opposite direction. This allows for continuous operation without repeated adjustments to the position, reducing the number of times the wrench needs to be repositioned and improving efficiency.

[0003] Existing patent application number: CN202421537017.6 A positioning and steering ratchet wrench includes a movable head and a steering handle body; a ratchet ring is fitted at the center of the movable head, and a receiving groove is provided on the inner side wall, in which a one-way support tooth and a support tooth spring are provided to cooperate with the ratchet ring; a protrusion is formed on the side of the movable head facing the steering handle body, and positioning teeth are evenly provided on the arc-shaped tail of the protrusion; a recess is formed on the side of the steering handle body facing the movable head, and a shaft hole is opened laterally in the recess, in which a movable shaft, a tooth top pin and a locking spring are provided.

[0004] The aforementioned patent describes a functional structure for a ratchet wrench. In actual use, the ratchet wrench does not need to be removed and repositioned, and can be continuously turned. This differs from the operation of a traditional wrench. The handle of the ratchet wrench can be structurally optimized to better adapt to the operation of the ratchet wrench, thereby improving work efficiency. Therefore, we propose a ratchet wrench to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a ratchet wrench to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a ratchet wrench, including a wrench handle, a wrench head, and an auxiliary turning mechanism. The auxiliary turning mechanism is provided on the surface of the wrench handle. The auxiliary turning mechanism includes a connecting sleeve, a hinge seat, an auxiliary handle, a toothed groove, a positioning clip, a torsion spring shaft, and a pressure plate. The connecting sleeve is slidably fitted on the surface of the wrench handle. A hinge seat is screwed onto the top surface of the connecting sleeve. The top of the hinge seat is rotatably connected to the auxiliary handle by a bearing. The auxiliary handle and the connecting sleeve are hinged and rotated through the hinge seat. A toothed groove is provided on the bottom surface of the wrench handle. A positioning clip is provided at the bottom of the connecting sleeve. The middle part of the positioning clip is elastically rotatably connected to the connecting sleeve by a torsion spring shaft. The front end of the positioning clip meshes with the inner side of the toothed groove. A pressure plate is integrally provided at the rear end of the positioning clip.

[0007] Preferably, the length of the connecting sleeve does not exceed 20% of the length of the wrench handle.

[0008] Preferably, the hinge seat has a flip angle range of not less than 180 degrees.

[0009] Preferably, the hinge seat is a positioning damping hinge.

[0010] Preferably, the auxiliary grip has symmetrical grip grooves on its front and rear walls, with a depth of 2-5mm.

[0011] Preferably, the length of the tooth groove is not less than 90% of the length of the wrench handle.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention features an auxiliary turning mechanism on the surface of the wrench handle. By connecting the wrench head to the bolt and then rotating the auxiliary handle along the hinge to a vertical position, the wrench handle can be controlled to reciprocate around the wrench head. The auxiliary turning mechanism is better suited to the operation of ratchet wrenches, thereby improving work efficiency.

[0014] This invention features a positioning clip at the bottom of the connecting sleeve. When the position of the connecting sleeve needs to be adjusted, first press the pressure plate to force the positioning clip to lift up. At this time, the positioning clip disengages from the inside of the toothed groove, thereby releasing the movement restriction of the connecting sleeve. The connecting sleeve can then be moved for position adjustment. Finally, release the pressure plate, and the elastic force provided by the torsion spring shaft will cause the positioning clip to snap back into the inside of the toothed groove, thus locking the position of the connecting sleeve and completing the position adjustment. Users can adjust it according to their operating habits, making it more convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural diagram of the wrench handle in this utility model;

[0017] Figure 3 This is a bottom view of the wrench handle structure in this utility model;

[0018] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of the connecting sleeve in this utility model.

[0019] In the diagram: Wrench handle-1, Wrench head-2, Auxiliary turning mechanism-3, Connecting sleeve-31, Hinge seat-32, Auxiliary handle-33, Grip groove-33a, Tooth groove-34, Positioning clip-35, Torsion spring shaft-36, Pressure plate-37. Detailed Implementation

[0020] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0021] Please see Figure 1 This utility model provides a ratchet wrench, including a wrench handle 1, a wrench head 2 and an auxiliary turning mechanism 3. The wrench head 2 is installed at both ends of the wrench handle 1, and the auxiliary turning mechanism 3 is provided on the surface of the wrench handle 1.

[0022] Please see Figure 2-3 This utility model provides a ratchet wrench. The auxiliary turning mechanism 3 includes a connecting sleeve 31, a hinge seat 32, an auxiliary handle 33, a toothed groove 34, a positioning clip 35, a torsion spring shaft 36, and a pressure plate 37. The connecting sleeve 31 is slidably fitted onto the surface of the wrench handle 1. The length of the connecting sleeve 31 does not exceed 20% of the length of the wrench handle 1, so that the connecting sleeve 31 does not easily affect the gripping and use of the wrench handle 1 and does not affect the original use of the ratchet wrench. The hinge seat 32 is screwed onto the top surface of the connecting sleeve 31. The rotation angle range of the hinge seat 32 is not less than 180 degrees, which can rotate the auxiliary handle 33 to be parallel to the wrench handle 1, making it convenient for folding and storage and ensuring portability. Furthermore, the hinge seat 32 is a positioning damping hinge. The hinge seat 32 can lock the auxiliary handle 33 in the unfolded or retracted state through high damping, making it more convenient to use. The top of the hinge seat 32 is rotatably connected to the auxiliary handle 33 by a bearing. The front and rear walls of the auxiliary handle 33 are symmetrically provided with grip grooves 33a. The grip grooves 33a can prevent the auxiliary handle 33 from accidentally slipping when gripped, and make it easier to apply force when performing a turning action. The auxiliary handle 33 and the connecting sleeve 31 are hinged and rotated through the hinge seat 32. The bottom surface of the wrench handle 1 is provided with a toothed groove 34. The length of the toothed groove 34 is not less than 90% of the length of the wrench handle 1, ensuring that the toothed groove 34 can provide sufficient adjustment margin for the connecting sleeve 31, so that the connecting sleeve 31 can be better adjusted according to the usage requirements.

[0023] Specifically, during use, first, the wrench head 2 is connected to the bolt sleeve, and then the auxiliary handle 33 is flipped to a vertical state along the hinge seat 32. Then, the auxiliary handle 33 can be held to control the wrench handle 1 to perform a reciprocating turning action with the wrench head 2 as the rotation center. The auxiliary turning mechanism 3 can better adapt to the operation mode of the ratchet wrench, thereby improving work efficiency.

[0024] Please see Figure 4 The bottom of the connecting sleeve 31 is provided with a positioning buckle 35. The middle part of the positioning buckle 35 is elastically rotated with the connecting sleeve 31 by a torsion spring shaft 36. The front end of the positioning buckle 35 meshes with the inner side of the tooth groove 34. The rear end of the positioning buckle 35 is integrally provided with a pressure plate 37.

[0025] Specifically, when the position of the connecting sleeve 31 needs to be adjusted, first press the pressure plate 37 to force the positioning buckle 35 to lift up. At this time, the positioning buckle 35 disengages from the inside of the tooth groove 34, thereby releasing the movement restriction of the connecting sleeve 31. The connecting sleeve 31 can then be moved to adjust its position. Finally, release the pressure plate 37, and the elastic force provided by the torsion spring shaft 36 will cause the positioning buckle 35 to snap back into the inside of the tooth groove 34, thereby locking the position of the connecting sleeve 31.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ratchet wrench, comprising a wrench handle (1) and a wrench head (2), wherein the wrench handle (1) is provided with a wrench head (2) at both ends; characterized in that: It also includes an auxiliary turning mechanism (3), on the surface of the wrench handle (1), the auxiliary turning mechanism (3) includes a connecting sleeve (31), a hinge seat (32), an auxiliary handle (33), a toothed groove (34), a positioning clip (35), a torsion spring shaft (36) and a pressure plate (37). The connecting sleeve (31) is slidably sleeved on the surface of the wrench handle (1). The hinge seat (32) is screwed on the top surface of the connecting sleeve (31). The top of the hinge seat (32) is equipped with a bearing and an auxiliary The handle (33) is rotated and connected, and the auxiliary handle (33) and the connecting sleeve (31) are hinged and rotated through the hinge seat (32). The bottom surface of the wrench handle (1) is provided with a toothed groove (34). The bottom of the connecting sleeve (31) is provided with a positioning buckle (35). The middle part of the positioning buckle (35) is elastically rotated with the connecting sleeve (31) through a torsion spring shaft (36). The front end of the positioning buckle (35) meshes with the inner side of the toothed groove (34). The rear end of the positioning buckle (35) is integrally provided with a pressure plate (37).

2. The ratchet wrench according to claim 1, characterized in that: The length of the connecting sleeve (31) does not exceed 20% of the length of the wrench handle (1).

3. The ratchet wrench according to claim 1, characterized in that: The hinge seat (32) has a rotation angle range of not less than 180 degrees.

4. A ratchet wrench according to claim 1, characterized in that: The hinge seat (32) is a positioning damping hinge.

5. A ratchet wrench according to claim 1, characterized in that: The auxiliary grip (33) has symmetrical grip grooves (33a) on its front and rear walls, with a depth of 2-5mm.

6. A ratchet wrench according to claim 1, characterized in that: The length of the toothed groove (34) is not less than 90% of the length of the wrench handle (1).

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