Combined type corner wrench mechanism suitable for narrow space
By designing the transmission mechanism of the combined angle wrench mechanism and the grip handle extension mechanism, the problem of wrench operation in a narrow space is solved, and efficient and safe screw rotation in a narrow space is achieved.
Patent Information
- Application Number
- CN202422343628.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In a narrow space, conventional wrench tools are difficult to operate, resulting in time-consuming, labor-intensive, inefficient, and safety hazards, so that the screws cannot be effectively tightened.
A combined angle wrench mechanism is designed, including a transmission mechanism and a grip handle extension mechanism. Through the coordination of the transmission gear and rack, the screws can be twisted from a long distance to prevent the operator from directly extending into the narrow space.
The wrench operation is successfully completed in a narrow space, which improves operation convenience and safety, reduces human resources costs, and improves work efficiency.
Smart Images
Figure CN223289705U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical engineering, relates to a manual wrench tool, and in particular to a combined angle wrench mechanism suitable for narrow spaces. Background Art
[0002] Solve assembly and maintenance problems in space-constrained environments. In fields such as energy and HVAC, industrial production, automotive manufacturing, and aerospace, narrow spaces are often encountered, making conventional tools difficult to use. For example, in a small space, tightening or loosening screws with a wrench is usually done manually, using the hand to reach into the narrow gap and twist manually. This method has the following disadvantages:
[0003] 1. High human resource costs: Working in narrow spaces can easily lead to safety hazards and requires professional technicians to operate, which involves additional labor costs and adjustments to production plans.
[0004] 2. Ordinary wrenches are inconvenient to operate in a small space. Due to limited space, they cannot be placed and turned correctly, resulting in time-consuming and labor-intensive operation and low efficiency.
[0005] 3. The space for ordinary wrenches to move in a small space is very limited. It is impossible to add a sleeve or knock, and the nut cannot be tightened with great force, resulting in too little torque to achieve the ideal tightening effect.
[0006] 4. If the space is too small, it is impossible to reach in and twist it manually, which will cause the project to be obstructed and affect the progress of the project. Summary of the Invention
[0007] Purpose of the invention: In order to overcome the deficiencies in the prior art, a combined angle wrench mechanism suitable for narrow spaces is provided, which can eliminate the defects of difficult operation, inconvenient operation, too small torque, inability to reach in and twist, etc. caused by narrow spaces, ensure that the wrench operation can be completed smoothly in narrow spaces, and solve the problem of wrench operation in narrow spaces.
[0008] Technical solution: To achieve the above-mentioned purpose, the utility model provides a combined angle wrench mechanism suitable for narrow spaces, including a transmission mechanism and a gripping handle extension mechanism, the transmission mechanism including a shell and a first transmission gear, a second transmission gear and a transmission rack arranged in the shell, the first transmission gear and the second transmission gear are respectively located at the two ends of the shell, the transmission rack is engaged with the first transmission gear and the second transmission gear, the first transmission gear and the second transmission gear are respectively provided with a first slot hole and a second slot hole, the gripping handle extension mechanism includes a handle body and a transmission bar longitudinally passing through the handle body, the bottom end of the transmission bar extends out of the handle body, and the top end is clamped on the first slot hole, and a screw slot part is provided on the second slot hole, and the screw slot part is used to clamp on the screw to be tightened.
[0009] Furthermore, the first slot hole and the second slot hole are both square hole structures.
[0010] Furthermore, the housing is provided with a first through hole for allowing the top end of the transmission bar to extend out.
[0011] Furthermore, the screw slot component includes a limiting portion and a snap-fitting portion, the limiting portion matches the second slot hole, and the snap-fitting portion is used to snap-fit on the screw to be tightened.
[0012] Furthermore, the housing is provided with a second through hole for allowing the top end of the limiting portion to extend out.
[0013] Furthermore, a limiting plate is provided between the limiting portion and the engaging portion.
[0014] Beneficial effect: Compared with the existing technology, the utility model forms a two-stage combined angle wrench mechanism through the coordinated design of the transmission mechanism and the holding handle extension mechanism. Under the action of the transmission mechanism, turning the holding handle extension mechanism can drive the screw slot part to rotate, so that the staff does not need to reach into the narrow space to operate, which solves the problems of wrench operation in narrow spaces, such as high difficulty, inconvenience, too small torque, and inability to reach in and twist, and ensures that the wrench operation can be completed smoothly in narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 It is a structural diagram of the transmission mechanism;
[0017] Figure 3 It is a structural diagram of the screw slot component. DETAILED DESCRIPTION
[0018] The present invention is further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, modifications of various equivalent forms of the present invention made by those skilled in the art all fall within the scope defined by the claims attached to this application.
[0019] like Figures 1 to 3As shown, the utility model provides a combined angle wrench mechanism suitable for narrow spaces, including a transmission mechanism 1 and a gripping handle extension mechanism 2. The transmission mechanism 1 includes a housing 5 and a first transmission gear 6, a second transmission gear 7 and a transmission rack 8 arranged in the housing 5. The first transmission gear 6 and the second transmission gear 7 are respectively located at both ends of the housing 5. The transmission rack 8 is matched with the first transmission gear 6 and the second transmission gear 7. The first transmission gear 6 and the second transmission gear 7 are respectively provided with a first card slot hole 61 and a second card slot hole 71. The first card slot hole 61 and the second card slot hole 71 are both square hole structures. The gripping handle extension mechanism 2 includes a handle body 21 and a longitudinal The transmission bar 22 passes through the handle body 21, and the bottom end of the transmission bar 22 extends out of the handle body 21, and the top end is clamped on the first slot hole 61. The second slot hole 71 is provided with a screw slot component 3, and the screw slot component 3 includes a limiting portion 31, a limiting plate 32, and a clamping portion 33. The limiting portion 31 and the clamping portion 33 are respectively located on both sides of the limiting plate 32. The limiting portion 31, the limiting plate 32 and the clamping portion 33 are integrally formed. The limiting portion 31 is fitted on the second slot hole 71, and the clamping portion 33 matches the hexagonal screw. The shell 5 is provided with a first through hole 51 for the top end of the transmission bar 22 to extend out, and the shell 5 is provided with a second through hole 52 for the top end of the limiting portion 31 to extend out.
[0020] In this embodiment, the above-mentioned combined angle wrench mechanism is put into practical operation, specifically to tighten a hexagonal screw in a narrow space. The operation process is as follows:
[0021] First, the operator holds the handle body 21 and extends the transmission mechanism 1 into the narrow space, and then fits the clamping part 33 on the hexagonal screw to be tightened. Then the operator holds the handle body 21 with one hand and uses the wrench 4 with the other hand to tighten the transmission bar 22. The rotation of the transmission bar 22 will drive the first transmission gear 6 to rotate. Under the action of the transmission rack 8, the second transmission gear 7 will rotate accordingly. The rotation of the second transmission gear 7 will drive the screw clamping part 3 to rotate accordingly, so that the hexagonal screw can be tightened.
[0022] During the above operation, the operator does not need to reach into a narrow space, and can tighten or loosen the hexagonal screw by externally twisting the transmission bar 22. Overall, the above operation has the following advantages:
[0023] (1) Spatial adaptability: This wrench is designed for narrow spaces and can be used in places where traditional wrenches are difficult to use, which improves the applicability and flexibility of the tool.
[0024] (2) Convenience of operation: The special combination angle wrench for narrow places has special designs, such as curved angles and adjustable angles, which makes operation in a small space more convenient and reduces the physical burden on the operator.
[0025] (3) Improve work efficiency: Through optimized design, the wrench can quickly tighten and loosen bolts in a narrow space, thereby improving overall work efficiency.
[0026] (4) Safety: When working in a narrow space, using a special wrench can reduce the safety risks caused by improper operation of the operator.
[0027] (5) Versatility: By replacing different accessories, the tool can adapt to different work needs, increasing the scope of use of the tool.
Claims
1. A combined angle wrench mechanism suitable for narrow spaces, characterized in that: It includes a transmission mechanism and a holding handle extension mechanism, the transmission mechanism includes a shell and a first transmission gear, a second transmission gear and a transmission rack arranged in the shell, the first transmission gear and the second transmission gear are respectively located at two ends of the shell, the transmission rack is matched with the first transmission gear and the second transmission gear, the first transmission gear and the second transmission gear are respectively provided with a first card slot hole and a second card slot hole, the holding handle extension mechanism includes a handle body and a transmission bar longitudinally passing through the handle body, the bottom end of the transmission bar extends out of the handle body, and the top end is clamped on the first card slot hole, and a screw clamping part is provided on the second card slot hole, and the screw clamping part is used to clamp on the screw to be tightened.
2. The combined angle wrench mechanism suitable for narrow spaces according to claim 1, characterized in that: The first slot hole and the second slot hole are both square hole structures.
3. The combined angle wrench mechanism suitable for narrow spaces according to claim 1, characterized in that: The housing is provided with a first through hole for the top end of the transmission bar to extend out.
4. The combined angle wrench mechanism suitable for narrow spaces according to claim 1, characterized in that: The screw slot component includes a limiting portion and a locking portion, the limiting portion matches the second slot hole, and the locking portion is used to lock onto the screw to be tightened.
5. The combined angle wrench mechanism suitable for narrow spaces according to claim 4, characterized in that: The housing is provided with a second through hole for allowing the top end of the limiting portion to extend out.
6. The combined angle wrench mechanism suitable for narrow spaces according to claim 4, characterized in that: A limiting plate is provided between the limiting portion and the locking portion.