Multifunctional lithium electric wrench
By designing support and connecting components, the inconvenience and loss issues associated with changing wrenches in multi-functional lithium-ion wrenches are resolved. This enables quick replacement of the wrench body and secure securing of spare wrench parts, thereby improving work efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU EVERTO TECHNOLOGY CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-24
AI Technical Summary
Existing multi-functional lithium battery wrenches are inconvenient to operate when changing to different wrenches, and the collar and connecting rod are difficult to remove, increasing the difficulty of operation. In addition, the wrenches need to be stored separately, which increases the risk of loss.
A multifunctional lithium-ion battery wrench was designed, which consists of a support assembly, a connecting assembly, and a wrench assembly. The wrench body can be quickly replaced through a support plate and a positioning clamp, and a storage box is provided to secure spare wrench parts, simplifying the operation process and preventing loss.
It enables quick replacement of wrench parts and prevents loss, simplifies the operation process, and reduces the risk of wrench loss.
Smart Images

Figure CN224544422U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery wrench technology, and in particular to a multifunctional lithium battery wrench. Background Technology
[0002] A multi-functional lithium-ion battery wrench is a portable power tool that combines lithium battery power technology with multiple wrench functions. It is widely used in mechanical assembly, automotive repair, construction, equipment maintenance, and other fields. Its core feature is that it is powered by a lithium battery, eliminating the dependence on power or air supply for traditional pneumatic or corded electric wrenches. It also features multiple torque adjustments and operating modes to adapt to different working conditions.
[0003] As disclosed in CN217751222U, this application discloses a multifunctional lithium-ion battery wrench, relating to the field of electric wrench technology. It includes a wrench body, with a main shaft connected to the left output end of the wrench body. An internal hexagonal wrench is sleeved on the outside of the main shaft, and an external hexagonal wrench is sleeved on the outside of the internal hexagonal wrench. The side wall of the main shaft has an inner first through hole and an inner second through hole. The side wall of the internal hexagonal wrench has a middle annular groove, a middle first through hole, and a middle second through hole. The side wall of the external hexagonal wrench has an outer annular groove and an outer through hole. An inner ring is sleeved in the middle annular groove of the internal hexagonal wrench, and a first connecting rod is provided between the inner rings. An outer ring is sleeved in the outer annular groove of the external hexagonal wrench, and a second connecting rod is provided between the outer rings. This application enables the matching of two types of hex screws using both internal and external hex wrenches. Furthermore, both internal and external hex wrenches can be simultaneously mounted on the main shaft, reducing the possibility of loss due to prolonged separation of different working parts.
[0004] In existing technology, both internal and external hex wrenches are used to match two types of hex screws, and both can be mounted simultaneously on the main shaft, reducing the possibility of loss due to prolonged separation of different parts. However, in practice, changing wrenches presents inconvenience. Specifically, changing a wrench requires first removing the collar and then the connecting rod. Because the collar is stuck in the groove and the connecting rod is fully inserted, removing the collar and connecting rod is difficult, increasing operational complexity and reducing work efficiency. Furthermore, wrenches must be stored separately when removing or installing them, further increasing the risk of loss. Utility Model Content
[0005] The purpose of this invention is to solve the inconvenience of changing different wrenches in actual operation in the prior art. Specifically, to change a wrench, the collar must first be removed, and then the connecting rod must be taken out to complete the replacement. Because the collar is stuck in the groove and the connecting rod is fully inserted into the groove, it is difficult to remove the collar and the connecting rod, which increases the difficulty of operation and reduces work efficiency. In addition, when removing or installing a wrench, it must be stored separately, which further increases the risk of wrench loss.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multifunctional lithium battery wrench, comprising a wrench body, a placement component at the top of the wrench body, an installation head fixedly connected to the port of the wrench body, a connecting main rod rotatably passing through the middle of the installation head, a connecting slot being provided at the end of the connecting main rod away from the wrench body, and a replacement structure provided on the outside of the connecting main rod of the wrench body, the replacement structure comprising a support component, a connecting component, and a wrench component.
[0007] In a preferred embodiment, the support assembly includes a bracket, which is fixed to the outside of the mounting head located on the connecting main rod. The end of the bracket away from the wrench body is rotatably connected to the connecting main rod. Positioning clips are fixedly connected to the four sides of the bracket near the wrench body. Threaded grooves are provided on the four sides of the bracket away from the wrench body.
[0008] In a preferred embodiment, the connecting assembly includes several support plates, a fixing block is fixedly connected to one side of each support plate, a rotating shaft is rotatably connected to the middle of each fixing block, the rotating shaft is fixed in a ring array at the end of the bracket away from the wrench body, a screw is threadedly connected to the middle of the side of the support plate away from the fixing block, the screw is threadedly connected to a threaded groove, and the fixing block and the rotating shaft are detachable.
[0009] In a preferred embodiment, the wrench assembly includes a plurality of wrench bodies, which are rotatably connected to the middle of the support plate. The wrench bodies are engaged with the positioning clamps, and the ends of the wrench bodies away from the support plate are respectively provided with outer corner blocks and inner corner grooves.
[0010] In a preferred embodiment, the wrench body has a sliding groove at one end near the support plate, a spring is fixedly connected inside the sliding groove, a locking block is fixedly connected to one end of the spring, the locking block is slidably connected to the inner corner groove, and the locking block is engaged with the connecting groove.
[0011] In a preferred embodiment, the placement component includes a storage box, which is fixedly connected to the wrench body. A cover is slidably connected to the top of the storage box, and two clamping blocks are fixedly connected to the middle of the interior of the storage box. A spare wrench is engaged in the middle of the clamping blocks.
[0012] The beneficial effects of this utility model are as follows:
[0013] In this invention, when a worker needs to replace a wrench component, pulling one wrench component causes the support plate to rotate around the pivot. The support plate then gradually aligns the wrench component with the connecting rod. When the locking block contacts the connecting groove, the locking block is pressed into the slide groove and squeezes the spring, gradually moving into the connecting groove to complete the replacement of the wrench component. At this point, the screw is aligned with the thread groove, and turning the screw fixes the position of the support plate. Work can then be carried out using the installed wrench component. When another wrench component needs to be replaced, the installed screw is loosened, the wrench component is deflected out, and fixed with a positioning clip. Then, another wrench component is deflected. Therefore, the operation is simple, the replacement of wrench components is convenient, and there is no risk of losing wrench components.
[0014] If spare wrenches are needed for work, they can be placed in the storage box and secured with clamps to prevent them from being lost due to misplacement. When a spare wrench is needed, one wrench body is removed and the spare wrench body is installed, making it convenient to use. Workers can also put extra wrench bodies in the storage box for future use. Attached Figure Description
[0015] Figure 1 A schematic diagram of the structure of a multifunctional lithium battery wrench provided by this utility model;
[0016] Figure 2 A schematic diagram of one side of the replacement structure of a multifunctional lithium battery wrench provided by this utility model;
[0017] Figure 3 A schematic diagram of the other side of the replacement structure of a multifunctional lithium battery wrench provided by this utility model;
[0018] Figure 4 A schematic diagram of the support component structure of a multifunctional lithium battery wrench provided by this utility model;
[0019] Figure 5 A schematic diagram of the connecting component structure of a multifunctional lithium battery wrench provided by this utility model;
[0020] Figure 6 A schematic diagram of the wrench assembly structure of a multifunctional lithium battery wrench provided by this utility model;
[0021] Figure 7 A schematic diagram of the placement component structure of a multifunctional lithium battery wrench provided by this utility model.
[0022] Legend:
[0023] 1. Wrench body; 11. Mounting head; 12. Connecting main rod; 13. Connecting slot; 21. Storage box; 22. Cover; 23. Clamping block; 24. Spare wrench parts; 31. Bracket; 311. Positioning clamp; 312. Threaded groove; 32. Support plate; 321. Fixing block; 322. Rotating shaft; 323. Screw; 33. Wrench body; 331. Outer corner block; 332. Inner corner groove; 333. Slide groove; 334. Spring; 335. Clamping block. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a multifunctional lithium battery wrench, including a wrench body 1, a placement component at the top of the wrench body 1, an installation head 11 fixedly connected to the port of the wrench body 1, a connecting main rod 12 rotatably passing through the middle of the installation head 11, a connecting slot 13 being provided at the end of the connecting main rod 12 away from the wrench body 1, and a replacement structure being provided on the outside of the wrench body 1 located on the connecting main rod 12, the replacement structure including a support component, a connecting component, and a wrench component.
[0026] like Figure 2 - Figure 6As shown, the support assembly includes a bracket 31, which is fixed to the mounting head 11 on the outside of the connecting main rod 12. The end of the bracket 31 away from the wrench body 1 is rotatably connected to the connecting main rod 12. Positioning clips 311 are fixedly connected to all four sides of the bracket 31 near the wrench body 1. Threaded grooves 312 are provided on all four sides of the bracket 31 away from the wrench body 1. The connecting assembly includes several support plates 32. A fixing block 321 is fixedly connected to one side of the support plate 32. A rotating shaft 322 is rotatably connected to the middle of the fixing block 321. The rotating shafts 322 are fixed in a circular array at the end of the bracket 31 away from the wrench body 1. The middle of the support plate 32 away from the fixing block 321 is threadedly connected to... The assembly includes a screw 323, which is threadedly connected to a threaded groove 312. The fixing block 321 and the rotating shaft 322 are detachable. The wrench assembly includes several wrench bodies 33, which are rotatably connected to the middle of the support plate 32. The wrench bodies 33 are engaged with the positioning clamp 311. The end of the wrench body 33 away from the support plate 32 is provided with an outer corner block 331 and an inner corner groove 332. The end of the wrench body 33 near the support plate 32 is provided with a sliding groove 333. A spring 334 is fixedly connected inside the sliding groove 333. A locking block 335 is fixedly connected to one end of the spring 334. The locking block 335 is slidably connected to the inner corner groove 332 and is engaged with the connecting groove 13.
[0027] In this embodiment, the operator drives the connecting main rod 12 to rotate via the wrench body 1. The connecting main rod 12 drives the locking block 335 to rotate via the connecting slot 13. The locking block 335 drives the wrench body 33 to rotate, thus enabling operation. When the wrench body 33 needs to be replaced, the installed screw 323 is loosened, the wrench body 33 is deflected out, and fixed with the positioning clamp 311. Then, another wrench body 33 is deflected, and the wrench body 33 drives the support plate 32 to rotate around the shaft 322. As the axis deflects, the support plate 32 drives the wrench body 33 to gradually align with the connecting main rod 12. When the locking block 335 contacts the connecting groove 13, the locking block 335 is pressed into the sliding groove 333 and squeezes the spring 334. The locking block 335 gradually enters the connecting groove 13, completing the replacement of the wrench body 33. At this time, the screw 323 aligns with the thread groove 312. Tightening the screw 323 fixes the position of the support plate 32, and the wrench body 33 can then be used for work.
[0028] like Figure 1 and Figure 7 As shown, the placement component includes a storage box 21, which is fixedly connected to the wrench body 1. A cover 22 is slidably connected to the top of the storage box 21. Two clamping blocks 23 are fixedly connected to the middle of the inside of the storage box 21, and a spare wrench part 24 is clamped in the middle of the clamping blocks 23.
[0029] In this embodiment, when the spare wrench 24 is needed for work, it can be placed in the storage box 21 and fixed by the clamping block 23, so that it will not be lost due to random placement. When the spare wrench 24 is needed, one wrench body 33 is removed and the spare wrench 24 is installed, which facilitates the use of the spare wrench 24. The staff can also put the extra wrench body 33 into the storage box 21 for backup. The user can choose whether to install the storage component on the wrench body 1. If it is necessary to install the storage box 21 on the top of the wrench body 1, the storage box 21 is installed on the 1 by bolts. If it is not necessary, the storage box 21 can be removed by bolts.
[0030] Working principle: First, the operator drives the connecting main rod 12 to rotate via the wrench body 1. The connecting main rod 12 drives the locking block 335 to rotate via the connecting slot 13. The locking block 335 drives the wrench body 33 to rotate, thus enabling operation. When the wrench body 33 needs to be replaced, the installed screw 323 is loosened, the wrench body 33 is deflected out, and fixed with the positioning clamp 311. Then, another wrench body 33 is deflected, causing the support plate 32 to deflect around the pivot 322. The support plate 32 drives the wrench body 33 to gradually align with the connecting main rod 12. When the locking block 335 contacts the connecting slot 13, the locking block 335 is pressed into the slide groove 333 and compresses the spring 334. The locking block 335 gradually enters the connecting slot 13, completing the replacement of the wrench body 33. At this time, the screw 323 is aligned with the threaded groove 312. Tightening the screw 323 fixes the position of the support plate 32. Work can then be carried out using the installed wrench body 33. If the work requires the use of a spare wrench 24, the spare wrench 24 can be placed in the storage box 21 and fixed by the clamping block 23, so that it will not be lost due to random placement. When the spare wrench 24 is needed, one wrench body 33 is removed and the spare wrench 24 is installed, which facilitates the use of the spare wrench 24. Workers can also put excess wrench bodies 33 into the storage box 21 for backup.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A multi-functional lithium-ion battery wrench, comprising a wrench body (1), characterized in that: The top of the wrench body (1) is provided with a placement component. The port of the wrench body (1) is fixedly connected with an installation head (11). The middle of the installation head (11) is rotatably connected to a connecting main rod (12). The end of the connecting main rod (12) away from the wrench body (1) is provided with a connecting slot (13). The wrench body (1) is provided with a replacement structure on the outside of the connecting main rod (12). The replacement structure includes a support component, a connecting component, and a wrench component.
2. The multifunctional lithium battery wrench according to claim 1, characterized in that: The support assembly includes a bracket (31), which is fixed to the mounting head (11) on the outside of the connecting main rod (12). The end of the bracket (31) away from the wrench body (1) is rotatably connected to the connecting main rod (12). Positioning clips (311) are fixedly connected to the four sides of the bracket (31) near the wrench body (1). Threaded grooves (312) are opened on the four sides of the bracket (31) away from the wrench body (1).
3. The multifunctional lithium battery wrench according to claim 1, characterized in that: The connecting assembly includes several support plates (32), a fixing block (321) is fixedly connected to one side of the support plate (32), a rotating shaft (322) is rotatably connected to the middle of the fixing block (321), the rotating shaft (322) is fixed in a ring array at one end of the bracket (31) away from the wrench body (1), a screw (323) is threadedly connected to the middle of the side of the support plate (32) away from the fixing block (321), the screw (323) is threadedly connected to the threaded groove (312), and the fixing block (321) and the rotating shaft (322) are detachable.
4. A multifunctional lithium-ion battery wrench according to claim 1, characterized in that: The wrench assembly includes several wrench parts (33), which are rotatably connected to the middle of the support plate (32). The wrench parts (33) are engaged with the positioning clamp (311). The end of the wrench parts (33) away from the support plate (32) is provided with an outer corner block (331) and an inner corner groove (332).
5. A multifunctional lithium-ion battery wrench according to claim 4, characterized in that: The wrench body (33) has a groove (333) at one end near the support plate (32). A spring (334) is fixedly connected inside the groove (333). A locking block (335) is fixedly connected at one end of the spring (334). The locking block (335) is slidably connected to the inner corner groove (332) and engages with the connecting groove (13).
6. A multifunctional lithium-ion battery wrench according to claim 1, characterized in that: The placement component includes a storage box (21), which is detachably connected to the wrench body (1). A cover (22) is slidably connected to the top of the storage box (21), and two clamping blocks (23) are fixedly connected to the middle of the inside of the storage box (21). A spare wrench piece (24) is clamped in the middle of the clamping block (23).