A portable wrench
Patent Information
- Application Number
- CN202522258322.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-25
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-25
AI Technical Summary
[0003]然而,随着工作场景的变化,用户对工具的便携性提出了更高的要求,尤其是在户外作业、汽车应急维修、家用工具收纳或随身携带等场景下,传统扳手因其较长的手柄结构,在水平方向上占据较大的空间,不便于收纳于工具包、抽屉或口袋中,容易与其他物品缠绕,占用宝贵的空间,影响携带的便捷性
[0013] By adopting the above technical solution, when it needs to be carried (in the non-use state), the fixing between the adjustment plate and the base can be released by rotation. At this time, rotating the first working section allows it to rotate to a position above the base or a different position from its original location, thereby significantly reducing the space occupied by the base and the first working section in the horizontal direction and improving portability. After inserting the bolt that matches the screw hole between the insertion hole and the screw hole, the first working section is positioned at this angle and will not rotate arbitrarily without external force, thus preventing it from rotating during carrying. When it is needed, the bolt is removed and the device is detached from the adjustment plate and the base. Rotating the first working section to prevent it from overlapping with the base allows the bolt to be inserted into the socket above the screw hole, completing the thread engagement with the screw hole. This determines the relative position of the base and the first working section, enabling stable movement of the first working section to apply torque to the fastener, thus tightening or loosening it. Furthermore, since the shaft is detachably connected to the base and the first working section, after removing the adjustment plate from the top of the base, separating the bottom of the shaft from the first working section allows for the replacement of the first working section with the required fastener or the removal of a damaged first working section, thereby extending its overall lifespan.
Smart Images

Figure CN224751172U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to wrenches, and more particularly to a portable wrench. Background Technology
[0002] A wrench is a common hand tool, mainly used to tighten or loosen bolts, connecting rods, and other fasteners with sharp edges. Its working principle is based on the lever principle. By applying force through the handle, the jaws of the wrench head can grip the edges of the bolt or nut, thereby tightening or loosening it.
[0003] However, with the changing work scenarios, users have placed higher demands on the portability of tools, especially in scenarios such as outdoor work, emergency car repair, household tool storage, or carrying them with them. Traditional wrenches, due to their long handle structure, occupy a large amount of space in the horizontal direction, making them inconvenient to store in tool bags, drawers, or pockets. They are also prone to getting tangled with other items, taking up valuable space and affecting the convenience of carrying them.
[0004] Therefore, how to adjust the total length of the wrench to facilitate carrying has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a portable wrench that allows the first working section to be rotated when the adjustment plate and the base are removed when it is needed for carrying, thereby reducing the space occupied by the wrench in the horizontal direction. Then the adjustment plate and the base are fixed, so that the two will not rotate arbitrarily.
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a base and a first working section, both extending horizontally along their lengths. A working groove is provided through the first working section. Several protrusions are spaced circumferentially within the working groove of the first working section. It also includes a rotating shaft and an adjusting disc. The first working section is located below the base. The rotating shaft is inserted into the base and detachably connected to the first working section. The adjusting disc is located above the rotating shaft and has an even number of insertion holes arranged circumferentially. Screw holes are provided below two of these insertion holes in the first working section.
[0007] The present invention is further configured such that: the adjusting plate is made of rubber and the rotating shaft includes a positioning section protruding from the upper end face of the base; the base includes a mounting hole for the rotating shaft to be inserted; and the diameter of the positioning section is larger than the diameter of the mounting hole and abuts against the upper end face of the base; the adjusting plate is fitted around the positioning section circumferentially and cannot rotate relative to the positioning section.
[0008] The present invention is further configured such that: the positioning segment is provided with a plurality of positioning blocks protruding at intervals along the circumference, and the adjusting plate is provided with a positioning slot corresponding to each positioning block.
[0009] The present invention is further configured such that each positioning block is a semi-cylinder with its opening facing inward.
[0010] The present invention is further configured to include a disassembly section located at the bottom of the rotating shaft, wherein the disassembly section is provided with an external thread in the circumferential direction, and the first working section is provided with a disassembly groove corresponding to the disassembly section, and the external thread enters the disassembly groove to complete the threaded engagement with the first working section.
[0011] The present invention is further configured such that: the base includes a second working section on the left side, and a plum blossom groove is provided in the second working section.
[0012] The present invention is further configured such that: the base includes a second working section on the left side, and a plum blossom groove is provided in the second working section.
[0013] By adopting the above technical solution, when it needs to be carried (in the non-use state), the fixing between the adjustment plate and the base can be released by rotation. At this time, rotating the first working section allows it to rotate to a position above the base or a different position from its original location, thereby significantly reducing the space occupied by the base and the first working section in the horizontal direction and improving portability. After inserting the bolt that matches the screw hole between the insertion hole and the screw hole, the first working section is positioned at this angle and will not rotate arbitrarily without external force, thus preventing it from rotating during carrying. When it is needed, the bolt is removed and the device is detached from the adjustment plate and the base. Rotating the first working section to prevent it from overlapping with the base allows the bolt to be inserted into the socket above the screw hole, completing the thread engagement with the screw hole. This determines the relative position of the base and the first working section, enabling stable movement of the first working section to apply torque to the fastener, thus tightening or loosening it. Furthermore, since the shaft is detachably connected to the base and the first working section, after removing the adjustment plate from the top of the base, separating the bottom of the shaft from the first working section allows for the replacement of the first working section with the required fastener or the removal of a damaged first working section, thereby extending its overall lifespan. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0015] Figure 1 This is an assembly drawing illustrating a specific embodiment of the present utility model; Figure 2 This is a perspective view of the first working section after rotation in a specific embodiment of this utility model; Figure 3 This is an exploded view of the present invention.
[0016] In the diagram: 1-base, 11-screw hole, 12-mounting hole, 13-first weight reduction groove, 14-second working section, 141-plump groove; 2-First working section, 21-Working groove, 22-Protrusion, 23-Second weight reduction groove, 24-Disassembly groove; 3-Rotating shaft, 31-Positioning section, 32-Positioning insert, 33-Disassembly / assembly section, 331-External thread; 4-Adjustment plate, 41-Socket, 42-Positioning slot. Detailed Implementation
[0017] 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.
[0018] like Figures 1-3As shown, this utility model discloses a portable wrench, including a base 1 and a first working section 2. Both the first working section 2 and the base 1 extend horizontally. A working groove 21 is provided through the first working section 2. A plurality of protrusions 22 are spaced circumferentially within the working groove 21 of the first working section 2. Because of the protrusions 22, torque can be applied to fasteners with slots or edges by inserting each protrusion 22 into the circumferential direction of the fastener, thereby achieving the tightening and loosening of the fastener. The wrench also includes a rotating shaft 3 and an adjusting disc 4. A working section 2 is located below the base 1. The rotating shaft 3 is inserted into the base 1 and detachably connected to the first working section 2 via threads, snaps, or other means. The adjusting plate 4 is located above the rotating shaft 3 and has an even number of insertion holes 41 arranged circumferentially. The base 1 has screw holes 11 located below two of the insertion holes 41. Since the adjusting plate 4 has several insertion holes 41 and the base 1 has screw holes 11, when it is necessary to carry it (in the non-use state), the fixing of the adjusting plate 4 and the base 1 can be released by rotating it. At this time, rotating the first working section 2 can make the first working section 2 rotate to the top of the base 1 or to the original position. The different positions of the first working section 2 significantly reduce the horizontal space occupied by the base 1 and the first working section 2, thus improving portability. When the bolt (not shown in the figure) that matches the screw hole 11 is inserted between the insertion hole 41 and the screw hole 11, the first working section 2 is positioned at this angle and will not rotate arbitrarily without external force, thus preventing it from rotating during transport. When needed, the bolt is removed from between the adjusting plate 4 and the base 1. Then, the first working section 2 is rotated so that it no longer overlaps with the base 1, and the bolt is inserted into the insertion hole 41 located above the screw hole 11. After the threaded engagement with the screw hole 11, the relative position of the base 1 and the first working section 2 can be determined, and the first working section 2 can be stably moved to apply torque to the fastener, thereby completing the tightening or disassembly. In addition, since the shaft 3 is detachably connected to the base 1 and the first working section 2, after the adjustment plate 4 is removed from the top of the base 1, the base 1 and the first working section 2 can be separated by separating the bottom of the shaft 3 from the first working section 2, so as to replace the first working section 2 that is compatible with different fasteners or remove the damaged first working section 2, thereby extending its overall life.
[0019] The adjusting disc 4 is made of rubber, and the rotating shaft 3 includes a positioning section 31 protruding from the upper surface of the base 1. The base 1 includes a mounting hole 12 for inserting the rotating shaft 3, and the diameter of the positioning section 31 is larger than the diameter of the mounting hole 12, abutting against the upper surface of the base 1. The adjusting disc 4 is fitted around the positioning section 31 circumferentially and cannot rotate relative to the positioning section 31. 1. Because the diameter of the positioning section 31 on the rotating shaft 3 is larger than the diameter of the mounting hole 12 on the base 1, when the rotating shaft 3 is inserted between the first working section 2 and the base 1, the position of the rotating shaft 3 between the base 1 and the first working section 2 can be determined by the restriction of the positioning section 31; 2. After the adjusting plate 4 and the positioning section 31 rotate synchronously, it ensures that when the user rotates the adjusting plate 4, it can directly drive the rotating shaft 3 to rotate synchronously. Since the adjusting section cannot rotate relative to the positioning section 31 after it is fitted into the positioning section 31, it facilitates the bolt insertion hole 41 and the corresponding screw hole 11 to complete the thread engagement after the adjusting section is installed in the circumference of the positioning section 31. 3. In addition, the adjusting plate 4, which is made of rubber, can provide good friction and elasticity, making it easy for the user to rotate the adjusting plate 4 by hand to adjust the angle after the bolt is removed, and the feel is comfortable.
[0020] The positioning segment 31 is provided with a number of positioning blocks 32 protruding at intervals along the circumference. The adjusting disk 4 is provided with a positioning slot 42 corresponding to each positioning block 32. The cooperation between the positioning block 32 and the positioning slot 42 ensures that there is no relative movement between the positioning segment 31 of the adjusting disk 4 and the rotating shaft 3, so that the rotational torque of the adjusting disk 4 can be completely transmitted to the rotating shaft 3, avoiding slippage and improving the accuracy and reliability of angle adjustment.
[0021] Preferably, each positioning plug 32 is a semi-cylindrical shape with its opening facing inward. Since each positioning plug 32 is a semi-cylindrical shape, when the adjusting plate 4 is turned outward to allow each positioning plug 32 to enter the corresponding positioning slot 42, the outer side of each positioning plug 32, i.e., the arc surface, enters the positioning slot 42 first, while the outer side of each positioning plug 32 enters the inner side of the corresponding positioning slot 42 first, thus facilitating the alignment of the two.
[0022] The system also includes a disassembly section 33 located at the bottom of the rotating shaft 3. The disassembly section 33 is provided with an external thread 331 in the circumferential direction. The first working section 2 is provided with a disassembly groove 24 corresponding to the disassembly section 33. The external thread 331 enters the disassembly groove 24 to complete the threaded engagement with the first working section 2. By moving the rotating shaft 3 from top to bottom, the base 1 and the first working section 2 are connected in sequence. At this time, the position of the rotating shaft 3 in the axial direction can be determined due to the presence of the positioning section 31. Due to the presence of the external thread 331 on the disassembly section 33 at the bottom of the rotating shaft 3, the external thread 331 is threaded into the disassembly groove 24 in the base 1 as the disassembly section 33 is rotated. After the threaded engagement is completed, the positioning section 31 will abut against the base 1 to complete the installation of the rotating shaft 3 between the base 1 and the first working section 2.
[0023] The base 1 includes a second working section 14 on the left side, and a plum blossom groove 141 is provided in the second working section 14. Because the plum blossom groove 141 is provided in the second working section 14 on the base 1, the wrench has two different working parts, which can accommodate fasteners of different specifications or types, thereby improving the practicality of the tool.
[0024] Preferably, the base 1 is provided with a first weight reduction groove 13 and the working section is provided with a second weight reduction groove 23. By opening weight reduction grooves in non-critical stress areas, the overall weight of the wrench is effectively reduced, making it lighter and easier to carry.
[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A portable wrench, comprising a base and a first working section, wherein both the first working section and the base extend laterally along their length, a working groove is provided through the first working section, and a plurality of protrusions are provided circumferentially at intervals within the working groove of the first working section, characterized in that: It also includes a rotating shaft and an adjusting plate. The first working section is located below the base. The rotating shaft is inserted into the base and detachably connected to the first working section. The adjusting plate is located above the rotating shaft and has an even number of insertion holes along the circumference. The base has screw holes located below two of the insertion holes.
2. The portable wrench according to claim 1, characterized in that: The adjusting disc is made of rubber, and the rotating shaft includes a positioning section protruding from the upper surface of the base. The base includes a mounting hole for the rotating shaft to be inserted, and the diameter of the positioning section is larger than the diameter of the mounting hole and abuts against the upper surface of the base. The adjusting disc is fitted around the positioning section circumferentially and cannot rotate relative to the positioning section.
3. A portable wrench according to claim 2, characterized in that: The positioning section is provided with a number of positioning blocks protruding at intervals along the circumference, and the adjustment plate is provided with a positioning slot for each positioning block.
4. A portable wrench according to claim 3, characterized in that: Each positioning block is a semi-cylinder with its opening facing inward.
5. A portable wrench according to claim 1, characterized in that: It also includes a disassembly section located at the bottom of the shaft. The disassembly section is provided with an external thread in the circumference. The first working section is provided with a disassembly groove corresponding to the disassembly section, and the external thread enters the disassembly groove to complete the threaded engagement with the first working section.
6. A portable wrench according to claim 1, characterized in that: The base includes a second working section on the left side, and a plum blossom groove is provided in the second working section.
7. A portable wrench according to claim 6, characterized in that: The base is provided with a first weight reduction groove, and the working section is provided with a second weight reduction groove.