A functional wrench

Abstract

The utility model relates to a kind of functional wrench, including handle body, first inner hexagonal wrench, second inner hexagonal wrench and hex sleeve, first inner hexagonal wrench is vertically welded on second inner hexagonal wrench, handle body is covered on first inner hexagonal wrench and second inner hexagonal wrench, the end of first inner hexagonal wrench away from second inner hexagonal wrench penetrates out handle body, the end of second inner hexagonal wrench penetrates out handle body, handle body is set with insertion slot on the position of the other end of second inner hexagonal wrench, the end of second inner hexagonal wrench is located in insertion slot, the end of hex sleeve is integrally formed with assembly seat for inserting into insertion slot, hex socket for inserting the end of second inner hexagonal wrench in insertion slot is set on assembly seat, the utility model can have two kinds of fixed size inner hexagonal wrench function, and the expansion function of replaceable sleeve, significantly improve the integration of tool, versatility and portability.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and in particular to a functional wrench. Background Technology

[0002] As a common hand tool, the hex wrench is widely used in mechanical assembly, furniture installation, bicycle repair, and the tightening and disassembly of various precision equipment. Traditional hex wrenches are typically single straight-shank or L-shaped, with hexagonal protrusions of fixed dimensions machined at one or both ends to match specific sizes of hexagonal screws or bolts. However, this structure has significant limitations: each wrench can only fit one nominal size of hexagonal screw. When faced with screws of various sizes, users often need to carry multiple wrenches of different sizes, which is not only inconvenient to operate but also increases the complexity of tool management.

[0003] In addition, most existing designs fail to balance versatility and expandability, and cannot easily accommodate accessories such as hexagonal sockets, thus limiting their practicality in diverse application scenarios.

[0004] Therefore, there is an urgent need to provide a new type of functional wrench that has a reasonable structure, is easy to operate, has the functions of multiple sizes of internal hex wrenches, and supports socket expansion. Utility Model Content

[0005] This utility model proposes a functional wrench that can tighten various types of internal hexagonal screws and is also compatible with hexagonal sockets, solving the aforementioned problems existing in the use of existing technologies.

[0006] The technical solution of this utility model is implemented as follows: A functional wrench includes a handle, a first hexagonal socket, a second hexagonal socket, and a hexagonal sleeve. The first hexagonal socket is vertically welded to the second hexagonal socket. The handle covers the first and second hexagonal sockets. One end of the first hexagonal socket, away from the second hexagonal socket, extends through the handle. One end of the second hexagonal socket extends through the handle. A slot is provided at the other end of the handle of the second hexagonal socket. One end of the second hexagonal socket is located in the slot. An integrally formed mounting base for insertion into the slot is provided on one end of the hexagonal sleeve. The mounting base has a hexagonal insertion hole for inserting the end of the second hexagonal socket located in the slot.

[0007] Preferably, the mounting base is hexagonal prism-shaped, and the slot is configured as a hexagonal hole corresponding to the mounting base.

[0008] Preferably, the handle is provided with a fixing mechanism for fixing the mounting base.

[0009] Preferably, the fixing mechanism includes a limiting post, a movable groove extending into the slot on the handle, a limiting transverse groove corresponding to the movable groove on the mounting base, a disengagement vertical groove extending axially through the mounting base away from the hexagonal sleeve on one side of the limiting transverse groove, the limiting transverse groove and the disengagement vertical groove communicating in an L-shape, the limiting post extending into the limiting transverse groove from the movable groove, the limiting post movably fitting on the movable groove and the limiting transverse groove, and the width of the disengagement vertical groove being sufficient for the limiting post to pass through.

[0010] Preferably, a push button is fixedly connected to one end of the limiting post located outside the handle.

[0011] Preferably, the second internal hexagonal wrench has a sliding connection groove corresponding to the movable groove at one end within the slot, and the inner end of the limiting post is slidably connected within the sliding connection groove.

[0012] Preferably, the second hexagon socket wrench means has a slider placement groove at the bottom of the sliding connection groove, one end of the slider placement groove extends through the second hexagon socket wrench means, a slider is slidably disposed in the slider placement groove, and the inner end of the limiting post is fixedly connected to the slider.

[0013] Preferably, the slider has a connection socket, and the inner end of the limiting post is integrally formed with a plug for inserting into the connection socket.

[0014] In summary, the beneficial effects of this utility model are as follows: 1. By integrating two different sizes of first and second hexagonal wrench means on the handle, and providing a slot structure at one end of the handle for mounting a hexagonal socket, this functional wrench simultaneously possesses three operating modes: the function of two fixed-size hexagonal wrenches, and the extended function of interchangeable sockets. Users no longer need to carry multiple tools to meet the needs of various screw sizes, significantly improving the tool's integration, versatility, and portability.

[0015] 2. A fixing mechanism is set on the handle to reliably lock the mounting base in the slot, preventing the hexagonal socket from accidentally falling off due to vibration or force during use, thus improving the safety and stability of tool use. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the structure when observed from another angle; Figure 3 This is a schematic diagram of the exploded structure of this utility model; Figure 4 This is a schematic diagram of the structure of the limiting post and the handle body during assembly in this utility model; Figure 5 This is a schematic diagram of the structure of the limiting post and the second internal hexagonal wrench in this utility model. Figure 6 This is a structural diagram of the assembly of the limiting post, the second internal hexagonal wrench, and the hexagonal sleeve in this utility model. Figure 7 This is a cross-sectional structural diagram of the present invention.

[0018] In the diagram: 1. Handle; 11. Slot; 12. Movable slot; 2. First hexagonal wrench; 3. Second hexagonal wrench; 31. Sliding connection slot; 32. Slider placement slot; 4. Hexagonal sleeve; 41. Assembly base; 42. Hexagonal socket; 43. Limiting horizontal slot; 44. Disengagement vertical slot; 5. Limiting post; 51. Push button; 52. Insert block; 6. Slider; 61. Connecting socket. Detailed Implementation

[0019] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Example: like Figures 1 to 7 As shown, this utility model discloses a functional wrench, including a handle 1, a first hexagonal wrench head 2, a second hexagonal wrench head 3, and a hexagonal socket 4. The first hexagonal wrench head 2, the second hexagonal wrench head 3, and the hexagonal socket 4 are made of metal materials, such as high-carbon steel or chrome vanadium steel, to ensure sufficient strength and wear resistance. The cross-sections of both wrench heads are regular hexagons, but with different dimensions, corresponding to two commonly used sizes of hexagonal socket screws.

[0021] The first hex socket wrench 2 is vertically welded to the second hex socket wrench 3. Subsequently, thermoplastic material (such as ABS or nylon) is injection molded over the first hex socket wrench 2 and the second hex socket wrench 3 to form a single handheld handle 1. During injection molding, the end of the first hex socket wrench 2 furthest from the welding point completely penetrates the lower end of the handle 1, serving as a first working end with a fixed size; while one end of the second hex socket wrench 3 also penetrates the side of the handle 1, serving as a second working end with a fixed size. Simultaneously, a through-hole slot 11 is reserved at the other end of the handle 1 corresponding to the second hex socket wrench 3. This slot 11 is used to install the hex socket 4 assembly. One end of the second hex socket wrench 3 is also located within the slot 11.

[0022] One end of the hexagonal sleeve 4 is integrally formed with a mounting base 41, which is hexagonal prism in shape. Its outer contour matches the inner wall of the slot 11 on the handle 1. The slot 11 is correspondingly designed as a hexagonal hole, so that the mounting base 41 cannot rotate relative to the slot 11 after insertion, thereby ensuring effective torque transmission. A hexagonal insertion hole 42 is provided in the center of the mounting base 41. The size of the hexagonal insertion hole 42 is adapted to the end of the second internal hexagonal wrench 3 located in the slot 11. When the hexagonal sleeve 4 is inserted, the end of the second internal hexagonal wrench 3 is precisely inserted into the hexagonal insertion hole 42, forming a stable mechanical connection.

[0023] To prevent the hexagonal sleeve 4 from accidentally falling off during use, a special fixing mechanism is provided on the handle 1.

[0024] Specifically, the fixing mechanism includes a limiting post 5. A movable groove 12 is formed on the side wall of the handle 1, extending into the slot 11. The limiting post 5 passes through the movable groove 12 and can slide laterally within it. Correspondingly, a limiting transverse groove 43 is formed on the mounting base 41, aligned with the movable groove 12. The limiting transverse groove 43 extends laterally along the mounting base 41 and is connected at one end to a disengagement vertical groove 44 that axially penetrates the mounting base 41 away from the hexagonal sleeve 4. Together, they form an L-shaped groove. The limiting post 5 extends from the movable groove 12 into the limiting transverse groove 43. The limiting post 5 is movably fitted on the movable groove 12 and the limiting transverse groove 43, and the width of the disengagement vertical groove 44 is sufficient for the limiting post 5 to pass through. When the hexagonal sleeve 4 is fully inserted, the limiting post 5 falls into the limiting horizontal groove 43 through the disengagement vertical groove 44, pushing the limiting post 5 to disengage from the vertical groove 44. At this time, because the disengagement vertical groove 44 is not aligned with the limiting post 5, the sleeve is locked and cannot be pulled out. When the user needs to replace the sleeve, he only needs to push the push button 51 on the outside of the handle 1 to drive the limiting post 5 to slide along the limiting horizontal groove 43 to the position aligned with the disengagement vertical groove 44. At this time, the hexagonal sleeve 4 can be pulled out, and the limiting post 5 disengages from the mounting base 41 from the disengagement vertical groove 44.

[0025] To facilitate the user in pushing the limiting post 5, a push button 51 is fixedly connected to one end of the limiting post 5 located outside the handle 1.

[0026] To further improve the stability of the movement of the limiting post 5 and prevent it from coming out of the handle 1, the second internal hexagonal wrench means 3 is provided with a sliding connection groove 31 corresponding to the movable groove 12 at one end located in the slot 11, and the inner end of the limiting post 5 is slidably connected in the sliding connection groove 31.

[0027] The specific structure of the inner end of the limiting post 5 being slidably connected in the sliding connection groove 31 is as follows: the second internal hexagonal wrench 3 has a slider placement groove 32 at the bottom of the sliding connection groove 31. One end of the slider placement groove 32 penetrates through the second internal hexagonal wrench 3, which facilitates the subsequent insertion of the slider 6. The slider 6 is slidably arranged in the slider placement groove 32, and the inner end of the limiting post 5 is fixedly connected to the slider 6.

[0028] The specific structure of the inner end of the limiting post 5 being fixedly connected to the slider 6 is as follows: a connection socket 61 is provided on the slider 6, and an insert block 52 for inserting into the connection socket 61 is integrally formed on the inner end of the limiting post 5. The insert block 52 can be glued and then inserted into the socket to improve the connection strength.

[0029] During production, a sliding connection groove 31 is pre-machined at the end of the second hexagon socket wrench 3 located within the slot 11. Simultaneously, a slider placement groove 32, penetrating the side of the second hexagon socket wrench 3, is also provided at the bottom of the sliding connection groove 31. This groove can be used to pre-install a slider 6 made of metal or high-strength plastic before injection molding. After the handle 1 is injection molded, the inner end of the limiting post 5 engages with the connecting socket 61 on the slider 6 via an insert 52. During assembly, an appropriate amount of glue is applied for bonding and fixing, thus firmly connecting the limiting post 5 to the slider 6. This structure not only ensures that the limiting post 5 will not loosen or fall off during long-term use but also greatly facilitates the assembly process of the entire machine—first, the slider 6 is placed into the slider placement groove 32, then the handle 1 is injection molded and covered, and finally the limiting post 5 is inserted from the outside to complete the connection. The entire process is suitable for automated production, improving manufacturing efficiency and product consistency.

[0030] In practical use, users can choose to use the first hex wrench (2) or the second hex wrench (3) depending on the task at hand, or select different sizes of hex sockets (4) to install into the slot (11) as needed. When the socket needs to be replaced, simply operate the push button (51) to quickly unlock and replace it, without the need for additional tools. The overall structure is compact and highly integrated, retaining the operating feel and torque performance of traditional hex wrenches while significantly expanding its applicability. It is particularly suitable for repair personnel, DIY enthusiasts, and scenarios requiring lightweight multi-functional tools.

[0031] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 functional wrench, characterized in that: The device includes a handle, a first hexagonal socket wrench, a second hexagonal socket wrench, and a hexagonal sleeve. The first hexagonal socket wrench is vertically welded to the second hexagonal socket wrench. The handle covers the first and second hexagonal socket wrench. One end of the first hexagonal socket wrench, away from the second hexagonal socket wrench, extends through the handle. One end of the second hexagonal socket wrench extends through the handle. A slot is provided at the other end of the handle of the second hexagonal socket wrench. One end of the hexagonal sleeve has an integrally formed mounting base for insertion into the slot. The mounting base has a hexagonal insertion hole for inserting the end of the second hexagonal socket wrench located in the slot.

2. A functional wrench according to claim 1, characterized in that: The mounting base is hexagonal prism-shaped, and the slot is configured as a hexagonal hole corresponding to the mounting base.

3. A functional wrench according to claim 2, characterized in that: The handle is provided with a fixing mechanism for fixing the mounting base.

4. A functional wrench according to claim 3, characterized in that: The fixing mechanism includes a limiting post, a movable groove that penetrates into the slot on the handle, a limiting transverse groove corresponding to the movable groove on the mounting base, a release vertical groove that axially penetrates out of the mounting base away from the hexagonal sleeve on one side of the limiting transverse groove, the limiting transverse groove and the release vertical groove are connected in an L-shape, the limiting post extends into the limiting transverse groove from the movable groove, the limiting post is movably fitted on the movable groove and the limiting transverse groove, and the width of the release vertical groove is sufficient for the limiting post to pass through.

5. A functional wrench according to claim 4, characterized in that: The limiting post is fixedly connected to a push button at one end outside the handle.

6. A functional wrench according to claim 4, characterized in that: The second internal hexagonal wrench has a sliding connection groove at one end located in the slot, which corresponds to the movable groove, and the inner end of the limiting post is slidably connected in the sliding connection groove.

7. A functional wrench according to claim 6, characterized in that: The second hexagon socket wrench has a slider placement groove at the bottom of the sliding connection groove. One end of the slider placement groove extends through the second hexagon socket wrench, and a slider is slidably disposed in the slider placement groove. The inner end of the limiting post is fixedly connected to the slider.

8. A functional wrench according to claim 7, characterized in that: The slider has a connection socket, and the inner end of the limiting post has an integrally formed plug for inserting into the connection socket.

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