Multifunctional cross wrench
By designing a multi-functional cross wrench with a hinged structure and a digital torque display, the problems of versatility and limited functionality of existing cross wrenches are solved. It achieves torque adjustment and torque display, and has a compact structure that is easy to store.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGJIANG POLYTECHNIC
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-15
AI Technical Summary
Existing Phillips wrenches lack versatility, cannot adapt to screws of different lengths, lack torque measurement function, are inconvenient to store, and are prone to slipping and damaging screws during tightening.
Design a multi-functional cross wrench that uses a hinged structure of main rod, auxiliary rod and turning rod, equipped with positioning adjustment components and digital torque display to achieve lever arm adjustment and torque display, and supports folding and storage.
It enhances the applicability of the cross wrench, ensures accurate assembly and disassembly torque, prevents slippage, and has a compact structure that makes it easy to carry.
Smart Images
Figure CN224239427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive disassembly and assembly technology, and more specifically, to a multi-functional cross wrench. Background Technology
[0002] Existing Phillips wrenches can only be used with screws of specific lengths, resulting in poor versatility. During tightening, if the tire bolt is too long, the wrench sleeve may not be deep enough, leading to insecure tightening and slippage, which can damage the bolt. In addition, their functions are relatively limited, lacking torque measurement capabilities, which cannot meet the needs of precise operation scenarios. Most Phillips wrenches on the market use a welded Phillips-shaped structure, making them inconvenient to store. Utility Model Content
[0003] The purpose of this utility model is to provide a multi-functional cross wrench to solve the problems existing in the prior art. The main rod, auxiliary rod, and turning rod are hinged together, and can be folded to save space after use. The relative position of the two rods can be adjusted by the positioning adjustment component. The lever arm size can be adjusted according to the actual situation, making it more versatile. A digital torque display is installed to display the torque value in real time, avoiding over-tightening or under-tightening.
[0004] To achieve the above objectives, this utility model provides a multifunctional cross wrench, comprising: two rods connected by a positioning adjustment assembly, the relative position of the two rods being adjustable via the positioning adjustment assembly; the two rods having identical structures, each rod including a main rod, a secondary rod, and a pivot rod, the two ends of the pivot rod being hinged to the main rod and the secondary rod respectively; the positioning adjustment assembly including a positioning threaded cylinder fitted onto the rods and fixed by a second screw or a double-cylinder positioning bolt; and a sleeve assembly, on which a digital torque converter is mounted, the other end of which is mounted on the secondary rod.
[0005] According to the present invention, a multi-functional cross wrench is provided, wherein the main rod and the auxiliary rod are provided with a single-cylinder positioning hole and a double-cylinder positioning hole, and the single-cylinder positioning hole is distributed on both sides of the double-cylinder positioning hole.
[0006] According to the present invention, a multi-functional cross wrench is provided, wherein the positioning threaded cylinder is threadedly connected to the main rod or the auxiliary rod and is fixed to the main rod or the auxiliary rod by a second screw.
[0007] According to the present invention, a multifunctional cross wrench is provided in which the positioning threaded cylinder fixes the two rods by means of a double-cylinder positioning square bolt. The double-cylinder positioning square bolt passes through the double-cylinder positioning holes on the main rod or the auxiliary rod that are distributed vertically, and is fixed by a third screw.
[0008] According to the present invention, a multi-functional cross wrench is provided, wherein the outer surfaces of the main rod and the auxiliary rod are both provided with threads, and an anti-folding threaded sleeve is sleeved on the auxiliary rod, and the anti-folding threaded sleeve is provided with internal threads.
[0009] According to the present invention, a multifunctional cross wrench is provided, wherein the socket assembly includes a main body and a base, the main body is mounted on the base by a fourth screw, and the base is precisely connected and installed with the square tenon structure of the digital torque converter.
[0010] According to the present invention, a multi-functional cross wrench is provided, wherein a first screw is installed at the hinge joint between the turning rod and the main rod and the auxiliary rod, and is reinforced by a nut.
[0011] The present invention discloses the following technical effects:
[0012] This utility model provides a multi-functional cross wrench that combines sliding adjustment, torque display, and folding storage functions. By adjusting the relative position of the positioning threaded cylinder and the rod, the distance between the force application points can be changed, effectively increasing the torque during assembly and disassembly. The digital torque display is installed between the sleeve assembly and the auxiliary rod, which can display the torque value in real time and accurately, ensuring that the operating torque meets the standard. The two ends of the turning rod are respectively hinged to the main rod and the auxiliary rod, so that the structural design supports folding storage. After folding, the volume is compact, making it easy to carry and store. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a structural schematic diagram of another working state of the present invention;
[0016] Figure 3 This is a schematic diagram of the overall folded state of this utility model;
[0017] Figure 4 This is a schematic diagram of the positioning adjustment component in this utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the rod connection in this utility model;
[0019] Figure 6 This is a schematic diagram of the sleeve assembly in this utility model;
[0020] The components are as follows: 1. Main body; 2. Digital display torque converter; 3. Anti-folding threaded cylinder; 4. Single cylinder positioning hole; 5. Double cylinder positioning hole; 6. Nut; 7. First screw; 8. Thread; 9. Turning rod; 10. Double cylinder positioning square bolt; 11. Second screw; 12. Positioning threaded cylinder; 13. Auxiliary rod; 14. Main rod; 15. Third screw; 16. Base; 17. Fourth screw; 18. Sleeve positioning hole. Detailed Implementation
[0021] 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.
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0023] like Figures 1-6 As shown, this utility model provides a multifunctional cross wrench, comprising: two rods connected by a positioning adjustment assembly, the relative position of the two rods being adjustable by the positioning adjustment assembly; the two rods have identical structures, including a main rod 14, a secondary rod 13, and a turning rod 9, with the two ends of the turning rod 9 hinged to the main rod 14 and the secondary rod 13 respectively; the positioning adjustment assembly includes a positioning threaded cylinder 12, which is sleeved on the rods and fixed by a second screw 11 or a double-cylinder positioning square bolt 10; and a sleeve assembly, on which a digital torque converter 2 is mounted, the other end of which is mounted on the secondary rod 13.
[0024] The socket assembly includes a main body 1 and a base 16. The main body 1 is fixedly mounted on the base 16 via a fourth screw 17 passing through a socket positioning hole 18 on the base 16, facilitating the locking or removal and replacement of the main body 1 on the base 16. The main body 1 directly fits onto the tire bolts. The base 16 is used to connect to the digital torque converter 2 to transmit torque. The inner wall of the base 16 has a square tenon structure, which precisely engages with the square tenon interface at the front end of the digital torque converter 2, transmitting the rotational torque of the wrench to the digital torque converter 2 for torque measurement.
[0025] The two ends of the pivot rod 9 are hinged to the main rod 14 and the auxiliary rod 13 respectively via the first screw 7 and secured with nuts 6, facilitating the overall folding and storage of the device after use, saving space. The end of the auxiliary rod 13 furthest from the pivot rod 9 is connected to the digital torque converter 2, which measures and displays the torque value in real time to assist in precise operation. The main rod 14 provides a gripping arm, and the pivot rod 9 enables the folding and storage of the structure. The digital torque converter 2 has a built-in pressure sensor or strain gauge, which generates deformation through torque. After signal amplification and analog-to-digital conversion, the value is displayed on the screen.
[0026] The main rod 14 and the auxiliary rod 13 are provided with threads 8 at intervals. The main rod 14, the auxiliary rod 13 and the turning rod 9 are provided with threads 8. The auxiliary rod 13 is fitted with an anti-folding threaded cylinder 3. The inner wall of the anti-folding threaded cylinder 3 is provided with internal threads 8. It is screwed into the folding connection (such as the outside of the hinge point between the auxiliary rod 13 and the turning rod 9). When screwed to the hinge point, the rod is locked to keep it in a coaxial straight state and prevent it from folding under force. After being screwed away from the hinge point, the rod can be folded to facilitate the storage of the device.
[0027] The main rod 14 and the auxiliary rod 13 are also provided with single-cylinder positioning holes 4 and double-cylinder positioning holes 5, with the single-cylinder positioning holes 4 distributed on both sides of the double-cylinder positioning holes 5, which are square in structure. The positioning threaded cylinder 12 is sleeved on the outside of the rod. The inner wall of the positioning threaded cylinder 12 is provided with internal threads 8. It is fitted onto the rod through the threads 8 and can slide axially. The positioning threaded cylinder 12 is also provided with single-cylinder positioning holes 4 and double-cylinder positioning holes 5. The second screw 11 passes through the single-cylinder positioning hole 4 to fix the positioning threaded cylinder 12 to the rod. The second screw 11 equipped with the positioning threaded cylinder 12 can be manually tightened or loosened quickly to facilitate adjustment and positioning of the relative position of the threaded cylinder 12 and the rod. The double-cylinder positioning square bolt 10 passes through the double-cylinder positioning hole 5 and, together with the third screw 15, locks the two positioning threaded cylinders 12 and fixes the relative position of the two rods. By manually loosening / tightening the above components, the positioning threaded cylinder 12 can be moved axially along the rod. By adjusting the position of the positioning threaded cylinder 12, the lever arm length (i.e., the distance from the hand grip point to the center of the screw) can be changed, thereby increasing or decreasing the disassembly and assembly torque. A double-cylinder positioning bolt 10 and a square double-cylinder positioning hole 5 are provided. The square cross-section prevents the bolt from rotating, ensuring that the positioning threaded cylinder 12 will not fail due to circumferential slippage under force, providing stronger shear resistance than a single screw.
[0028] like Figure 2 As shown, during operation, first manually loosen the double-cylinder positioning square bolt 10 and the third screw 15, slide the upper and lower positioning threaded cylinders 12 to the target positioning hole (single-cylinder positioning hole 4 or double-cylinder positioning hole 5), and then tighten the third screw 15; at the same time, rotate the anti-folding threaded cylinder 3 to the hinged fixed position, and effectively increase the disassembly and assembly torque by extending the lever arm.
[0029] like Figure 3As shown, when storing, first unscrew the anti-folding threaded cylinder 3 away from the hinge, so that the auxiliary rod 13, main rod 14 and turning rod 9 can be folded around the hinge point; then loosen the second screw 11 and the double-cylinder positioning square bolt 10, adjust the upper and lower positioning threaded cylinders 12 and the rods to a parallel state, and then tighten them to fix them, which can greatly reduce the overall space occupied by the cross wrench.
[0030] This utility model provides a multi-functional cross wrench that combines sliding adjustment, torque display, and folding storage functions. By adjusting the relative position of the positioning threaded cylinder 12 and the rod, the distance between the force application points can be changed, effectively increasing the torque during assembly and disassembly. The integrated digital torque display 2 can accurately display the torque value in real time, ensuring that the operating torque meets the standard. The structural design supports folding storage, and the compact size after folding makes it easy to carry and store.
[0031] The wrench has a simple structure and is easy to assemble: each rod is connected to the other through a pre-set mating interface at the end and fixed with screws and nuts 6 to form a foldable basic frame; according to the usage requirements, the upper and lower positioning threaded cylinders 12 are adjusted to the appropriate position along the rods, and precise positioning and firm locking are achieved by double-cylinder positioning square bolts 10 and the second screw 11; anti-folding threaded cylinders 3 are equipped at the rod connection points to ensure that each rod remains coaxial and straight when under force, improving operational stability; select a suitable base 16 and fit it into the square tenon interface of the digital torque converter 2 to complete the assembly of the wrench body 1.
[0032] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 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 limitations on this utility model.
[0033] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A multi-functional cross wrench, characterized in that, include: Two rods are connected by a positioning adjustment assembly, and the positioning adjustment assembly can change the relative position of the two rods. The two rods have the same structure. The rods include a main rod (14), a secondary rod (13) and a turning rod (9). The two ends of the turning rod (9) are respectively hinged to the main rod (14) and the secondary rod (13). The positioning adjustment assembly includes a positioning threaded cylinder (12), which is sleeved on the rod and fixed by a second screw (11) or a double-cylinder positioning square bolt (10); A sleeve assembly, on which a digital torque converter (2) is mounted, the other end of which is mounted on the auxiliary rod (13).
2. The multi-functional cross wrench according to claim 1, characterized in that: Both the main rod (14) and the auxiliary rod (13) are provided with a single-cylinder positioning hole (4) and a double-cylinder positioning hole (5), and the single-cylinder positioning hole (4) is distributed on both sides of the double-cylinder positioning hole (5).
3. The multi-functional cross wrench according to claim 1, characterized in that: The positioning threaded cylinder (12) is threadedly connected to the main rod (14) or the auxiliary rod (13) and is fixed to the main rod (14) or the auxiliary rod (13) by a second screw (11).
4. The multi-functional cross wrench according to claim 3, characterized in that: The positioning threaded cylinder (12) fixes the two rods by a double-cylinder positioning bolt (10). The double-cylinder positioning bolt (10) passes through the double-cylinder positioning holes (5) on the main rod (14) or the auxiliary rod (13) which are distributed vertically, and is fixed by a third screw (15).
5. The multi-functional cross wrench according to claim 1, characterized in that: Both the main rod (14) and the auxiliary rod (13) have threads (8) on their outer surfaces. An anti-folding threaded cylinder (3) is sleeved on the auxiliary rod (13), and the anti-folding threaded cylinder (3) has internal threads.
6. The multi-functional cross wrench according to claim 1, characterized in that: The sleeve assembly includes a main body (1) and a base (16). The main body (1) is mounted on the base (16) by a fourth screw (17). The base (16) is connected to the square tenon structure of the digital torque converter (2).
7. The multi-functional cross wrench according to claim 1, characterized in that: The hinge joint between the pivot rod (9) and the main rod (14) and the auxiliary rod (13) is fitted with a first screw (7) and reinforced by a nut (6).