Manual tool for overhauling mechanical equipment
By designing a multi-functional hand tool that combines a wrench with an extension rod, flexible length and angle adjustment are achieved, solving the problem of wrench operation deep inside mechanical equipment and in low-light environments, and improving maintenance efficiency and safety.
Patent Information
- Application Number
- CN202520204092.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing wrenches have fixed lengths and tilt angles, making them difficult to operate effectively deep inside mechanical equipment or in dimly lit environments.
A multi-functional hand tool was designed, combining a wrench and an extension rod, using a snap-fit, slot, and screw locking connection, and equipped with a light to achieve flexible length and angle adjustment, adapting to confined spaces and low-light environments.
It improves the versatility and operational stability of the tools, ensures safety and efficiency, reduces the risks caused by tool loosening, provides ample lighting, and improves maintenance quality and safety.
Smart Images
Figure CN223734769U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical equipment maintenance technology, and more specifically, it relates to a manual tool for mechanical equipment maintenance. Background Technology
[0002] The structure of mechanical equipment is becoming increasingly complex, and the installation positions of its internal parts are becoming more compact and diverse. This requires maintenance personnel to be able to operate tools flexibly under different working conditions to disassemble and install nuts, bolts and other connecting parts located in various narrow and hard-to-reach spaces.
[0003] However, current wrenches still have some shortcomings in use:
[0004] First, the length and tilt angle of a wrench are fixed. When it is necessary to tighten nuts deep inside mechanical equipment, ordinary wrenches cannot be operated smoothly due to their limited length, and there are also inconveniences when disassembling nuts in certain special locations.
[0005] Secondly, in some dimly lit maintenance environments, such as corners of factory workshops, equipment rooms in basements, or emergency repair sites at night, maintenance personnel may have difficulty seeing the operating parts clearly due to insufficient lighting. Utility Model Content
[0006] To address the aforementioned technical problems, this utility model provides a manual tool for the maintenance of mechanical equipment. This addresses the issue that existing wrenches have fixed lengths and tilt angles, which are inconvenient when tightening nuts deep inside mechanical equipment. Furthermore, in dimly lit maintenance environments, such as corners of factory workshops, basement equipment rooms, or emergency nighttime repair sites, insufficient lighting makes it difficult for maintenance personnel to clearly see the problem areas.
[0007] The purpose and effect of this utility model for a manual tool for mechanical equipment maintenance are achieved by the following specific technical means: a manual tool for mechanical equipment maintenance, including a first connecting block;
[0008] A card plate is fixedly installed on the rear end face of the first connecting block, and a first card slot is opened inside the first connecting block;
[0009] The wrench has a hexagonal prism connecting rod fixedly installed at its rear end, and the connecting rod is engaged in the first slot.
[0010] The second connecting block has a first insert plate fixedly installed on its rear end face and two limiting plates fixedly installed on its front end face. A second connecting hole is opened in the middle of the surface of the limiting plate.
[0011] An extension plate is provided with a first slot at its front end, and a first through hole is provided on both the upper and lower surfaces of the first slot. A second insert plate is fixedly installed at the middle position of the rear end face of the extension plate, and a third through hole is provided on the surface of the second insert plate.
[0012] The locking screw has a threaded lower end portion on its outer end face, and limit strips are evenly installed on the upper end portion of its outer end face.
[0013] The third connecting block has a handle installed on its rear end face and a second slot opened on its front end face. The upper and lower end faces of the second slot are respectively provided with second through holes.
[0014] The placement rack has an L-shaped main body, with a lighting lamp fixedly installed on the front end of the vertical plate and a round hole on the surface of the horizontal plate.
[0015] Furthermore, a magnet is installed inside the first slot, and the inner end face of the magnet is in contact with the outer end face of the connecting rod.
[0016] Furthermore, the card plate is snapped between two limiting plates, and a first through hole is opened on the surface of the card plate, and a first limiting groove is evenly opened on the inner end face of the first through hole.
[0017] Furthermore, the inner circumference of the second connecting hole is uniformly provided with a second limiting groove, the locking screw is engaged in the second connecting hole and the first through hole, and the limiting strip is engaged in the first limiting groove and the second limiting groove in sequence.
[0018] Furthermore, a second through hole is provided on the surface of the first insert plate. The first insert plate is inserted into the first slot at the front end of the extension plate. A bolt passes through the first through hole and the second through hole to fix the first insert plate in the first slot.
[0019] Furthermore, the outer end face of the third connecting block is provided with a device groove, a fastening block is engaged inside the device groove, and a fastening screw is fixedly installed on the outer end face of the fastening block, the fastening screw is engaged in the round hole on the surface of the placement frame.
[0020] Furthermore, the second insert plate at the rear end of the extension plate is snapped into the second slot at the front end of the third connecting block, and the bolt passes through the second through hole and the third through hole in sequence to fix the second insert plate in the second through hole.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] First, it is multifunctional. This hand tool combines a wrench with an extension bar. It can not only be used as a regular wrench, but also easily handle nuts and bolts of different depths and positions by connecting extension plates according to actual maintenance needs. This greatly improves the versatility and practicality of the tool, reduces the inconvenience of maintenance personnel carrying multiple single-function tools, and makes maintenance work more efficient and convenient.
[0023] Secondly, various connection methods, such as snap-fit, slot, and screw locking, are used between the components to ensure the stability and reliability of the tool during use. For example, the connecting rod of the wrench is tightly attached to the first slot of the first connecting block by magnetic attraction, which effectively prevents the wrench from accidentally falling off during operation. The clamping plate and the limiting plate are fixed by locking screws, and the cooperation between the limiting strip and the limiting groove makes the connection more secure, avoiding loosening or displacement between the components when force is applied, ensuring the safe conduct of maintenance work, and reducing operational errors and potential risks caused by tool loosening.
[0024] Third, the extension plate design provides the tool with flexible length adjustment function. Operators can easily select the appropriate length combination according to the specific maintenance scenario. Whether in a narrow space or a part that needs to be operated from a distance, the tool length can be easily adjusted. In addition, a second limiting groove is opened on the inner circumference of the second connecting hole and a first limiting groove is opened on the inner circumference of the first through hole. Workers can adjust the tilt angle of the wrench as needed.
[0025] Fourth, the lighting on the rack facilitates maintenance work. In dimly lit environments, such as inside mechanical equipment or during emergency repairs at night, the lighting provides sufficient light, enabling maintenance personnel to clearly see the operating parts, accurately operate wrenches, and perform other maintenance steps. This improves work efficiency and maintenance quality, while also reducing potential safety accidents caused by insufficient light, ensuring the personal safety of maintenance personnel and the normal maintenance progress of the equipment. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall device structure of this utility model.
[0027] Figure 2 This is an exploded structural diagram of the overall device of this utility model.
[0028] Figure 3 This is a schematic diagram of the extension plate and the third connecting block of this utility model.
[0029] Figure 4 This is a schematic diagram of the docking structure of the two extension plates of this utility model.
[0030] Figure 5This is a schematic diagram of the third connecting block and fastening block structure of this utility model.
[0031] Figure 6 This is an exploded view of the card plate and limiting plate of this utility model.
[0032] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0033] 1. First connecting block; 101. First slot; 1011. Magnet; 2. Card plate; 201. First through hole; 2011. First limiting groove; 3. Wrench; 301. Connecting rod; 4. Second connecting block; 401. First insert plate; 4021. Second through hole; 5. Limiting plate; 501. Second connecting hole; 5011. Second limiting groove; 6. Extension plate; 601. First slot; 6011. First through hole; 602. Second insert plate; 6021. Third through hole; 7. Locking screw; 701. Limiting strip; 8. Third connecting block; 801. Handle; 802. Second slot; 8021. Second through hole; 803. Device slot; 9. Placement rack; 901. Lighting lamp; 902. Round hole; 10. Fastening block; 1001. Fastening screw. Detailed Implementation
[0034] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0035] Example 1:
[0036] As attached Figure 1 To be continued Figure 6 As shown:
[0037] This utility model provides a manual tool for mechanical equipment maintenance, including a first connecting block 1;
[0038] A card plate 2 is fixedly installed on the rear end face of the first connecting block 1, and a first card slot 101 is opened inside the first connecting block 1;
[0039] The wrench 3 has a hexagonal prism connecting rod 301 fixedly installed at its rear end, and the connecting rod 301 is snapped into the first slot 101.
[0040] The second connecting block 4 has a first insert plate 401 fixedly installed on its rear end face and two limiting plates 5 fixedly installed on its front end face. A second connecting hole 501 is opened in the middle of the surface of the limiting plate 5.
[0041] The extension plate 6 has a first slot 601 at its front end, and a first through hole 6011 at both the upper and lower surfaces of the first slot 601. A second insert plate 602 is fixedly installed at the middle position of the rear end face of the extension plate 6, and a third through hole 6021 is opened on the surface of the second insert plate 602.
[0042] The locking screw 7 has a thread on the outer end face of the lower part of the locking screw 7, and limit strips 701 are evenly installed on the outer end face of the upper part of the locking screw 7.
[0043] The third connecting block 8 has a handle 801 installed on its rear end face and a second slot 802 opened on its front end face. The upper and lower end faces of the second slot 802 are respectively provided with second through holes 8021.
[0044] The placement rack 9 has an L-shaped structure. A light 901 is fixedly installed on the front end of the vertical plate of the placement rack 9, and a round hole 902 is opened on the surface of the horizontal plate of the placement rack 9.
[0045] The first slot 101 contains a magnet 1011, and the inner end face of the magnet 1011 is in contact with the outer end face of the connecting rod 301.
[0046] The card plate 2 is engaged between two limiting plates 5. The surface of the card plate 2 is provided with a first through hole 201. The inner end face of the first through hole 201 is provided with a first limiting groove 2011. The inner circumference of the second connecting hole 501 is provided with a second limiting groove 5011. The locking screw 7 is engaged inside the second connecting hole 501 and the first through hole 201. The limiting strip 701 is engaged in the first limiting groove 2011 and the second limiting groove 5011 in sequence, which can play a limiting role for the card plate 2 and prevent the card plate 2 from rotating.
[0047] The first insert plate 401 has a second through hole 4021 on its surface. The first insert plate 401 is inserted into the first slot 601 at the front end of the extension plate 6. The bolt passes through the first through hole 6011 and the second through hole 4021 to fix the first insert plate 401 in the first slot 601. The second connecting block 4 can be connected with the extension plate 6.
[0048] The outer end face of the third connecting block 8 is provided with a device groove 803. A fastening block 10 is snapped into the device groove 803. A fastening screw 1001 is fixedly installed on the outer end face of the fastening block 10. The fastening screw 1001 is snapped into the round hole 902 on the surface of the placement frame 9. After the worker tightens the fastening screw 1001, the placement frame 9 can be fixed to the outside of the third connecting block 8.
[0049] The second insert plate 602 at the rear end of the extension plate 6 is snapped into the second slot 802 at the front end of the third connecting block 8. The bolt passes through the second through hole 8021 and the third through hole 6021 in sequence, fixing the second insert plate 602 in the second through hole 8021. The worker can connect the two extension plates 6 together according to the position of the nut to be disassembled, so that the wrench 3 can disassemble the nut in a deeper position.
[0050] The specific usage and function of this embodiment are as follows:
[0051] In this invention, the wrench 3 is engaged in the first slot 101 inside the first connecting block 1 via a hexagonal prism connecting rod 301 at its rear end. A magnet 1011 inside the first slot 101 ensures the connecting rod 301 fits tightly, preventing the wrench 3 from easily falling off during use and facilitating the tightening or loosening of various nuts and bolts. The first insert plate 401 at the rear end of the second connecting block 4 is inserted into the first slot 601 at the front end of the extension plate 6 and fixed with bolts passing through the first through holes 6011 at the upper and lower ends of the first slot 601 and the second through hole 4021 on the surface of the first insert plate 401. This achieves the connection between the extension plate 6 and the second connecting block 4. A secure connection allows for tool length adjustment based on actual maintenance needs, facilitating operation in deeper or harder-to-reach locations. The second insert plate 602 at the rear end of the extension plate 6 snaps into the second slot 802 at the front end of the third connecting block 8. Bolts are then passed sequentially through the second through holes 8021 on the upper and lower ends of the second slot 802 at the front end of the third connecting block 8 and the third through holes 6021 on the surface of the second insert plate 602, fixing the extension plate 6 to the third connecting block 8. This further expands the tool's length and range of use. Simultaneously, the handle 801 at the rear end of the third connecting block 8 provides a comfortable grip for the operator, facilitating force application. The locking plate 2 snaps into the two limit... Between the position plates 5, the locking screw 7 is inserted through the second connecting hole 501 and passes through the first through hole 201 on the surface of the clamping plate 2. The limiting strips 701, evenly installed on the outer end face of its upper part, are sequentially engaged in the first limiting groove 2011 and the second limiting groove 5011. After tightening the nut on the surface of the locking screw 7, the thread at the lower end of the locking screw 7 engages with the nut to lock the clamping plate 2 and the limiting plate 5, thereby ensuring a stable connection between the first connecting block 1 and the second connecting block 4. This prevents loosening or displacement during use, ensuring the stability and reliability of tools such as the wrench 3 during operation. During this process, adjustments can be made. The tilt angle between the first connecting block 1 and the wrench 3 facilitates the disassembly and assembly of nuts in different positions by workers. The main body of the placement frame 9 is an L-shaped structure. The lighting lamp 901 on the front end of its vertical plate can provide lighting for maintenance work, making it convenient to operate in low-light environments. The round hole 902 on the surface of the horizontal plate of the placement frame 9 is used to install the fastening block 10. The device groove 803 opened on the outer end face of the third connecting block 8 is fitted with the fastening block 10. The fastening screw 1001 fixedly installed on the outer end face of the fastening block 10 is fitted into the round hole 902. By tightening or loosening the fastening screw 1001, the placement frame 9 can be easily installed or removed from the third connecting block 8.
Claims
1. A hand tool for use in the maintenance of mechanical equipment, characterised in that: The utility model provides a kind of connecting device, including first connecting block (1), the rear end surface of the first connecting block (1) is fixedly installed with card board (2), the inside of first connecting block (1) is provided with first card slot (101);Spanner (3), the rear end of the spanner (3) is fixedly installed with the connecting rod (301) of six prism structure, connecting rod (301) is clamped in first card slot (101);Second connecting block (4), the rear end surface of the second connecting block (4) is fixedly installed with first plug-in board (401), the front end surface of second connecting block (4) is fixedly installed with two limit plate (5), the surface middle position of limit plate (5) is provided with second connecting hole (501);Extension plate (6), the front end of the extension plate (6) is provided with first insertion slot (601), the upper and lower ends of the surface of first insertion slot (601) are provided with first through hole (6011), the rear end surface middle position of extension plate (6) is fixedly installed with second plug-in board (602), the surface of second plug-in board (602) is provided with third through hole (6021);Locking screw (7), the lower end portion outer end surface of the locking screw (7) is provided with thread, the upper end portion outer end surface of locking screw (7) is evenly installed with limit strip (701);Third connecting block (8), the rear end surface of the third connecting block (8) is installed with handle (801), the front end surface of third connecting block (8) is provided with second insertion slot (802), the upper and lower end surfaces of second insertion slot (802) are provided with second through hole (8021) respectively;Placing rack (9), the main body of the placing rack (9) is L type structure, the vertical plate front end surface of placing rack (9) is fixedly installed with illuminating lamp (901), the surface of the horizontal plate of placing rack (9) is provided with a round hole (902).
2. The hand tool for use in overhauling a mechanical device according to claim 1, wherein: The first card slot (101) is internally provided with a magnet (1011), and the inner end surface of the magnet (1011) is attached to the outer end surface of the connecting rod (301).
3. The hand tool for use in the maintenance of a mechanical device according to claim 1, wherein: The card board (2) is clamped between the two limit plates (5), and the surface of the card board (2) is provided with a first through hole (201), and the inner end surface of the first through hole (201) is evenly provided with a first limiting groove (2011).
4. The hand tool for use in the maintenance of a mechanical device according to claim 1, wherein: The second connecting hole (501) is internally and evenly provided with a second limiting groove (5011), the locking screw (7) is clamped inside the second connecting hole (501) and the first through hole (201), and the limit strip (701) is sequentially clamped in the first limiting groove (2011) and the second limiting groove (5011).
5. The hand tool for use in servicing a mechanical device as set forth in claim 1, wherein: The surface of the first plug-in board (401) is provided with a second through hole (4021), the first plug-in board (401) is inserted into the first insertion slot (601) at the front end of the extension plate (6), a bolt passes through the first through hole (6011) and the second through hole (4021), and the first plug-in board (401) is fixed in the first insertion slot (601).
6. The hand tool for servicing a mechanical device as set forth in claim 1, wherein: The outer end surface of the third connecting block (8) is provided with a device slot (803), a fastening block (10) is clamped inside the device slot (803), the outer end surface of the fastening block (10) is fixedly installed with a fastening screw (1001), and the fastening screw (1001) is clamped in the round hole (902) on the surface of the placing rack (9).
7. The hand tool for servicing a mechanical device as set forth in claim 1, wherein: The second plug-in plate (602) at the rear end of the extension plate (6) is clamped in the second plug-in slot (802) at the front end of the third connecting block (8), and a bolt passes through the second through hole (8021) and the third through hole (6021) in sequence to fix the second plug-in plate (602) in the second through hole (8021).