Fastening tool

By designing a fastening tool that fixes the sleeve to the plate, and using the side arm to transmit rotational force, the problem of low bolt fastening efficiency in confined spaces is solved, achieving efficient bolt fastening and tool stability.

CN223477552UActive Publication Date: 2025-10-28NINGBO IRON & STEEL
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Patent Information

Application Number
CN202422907949.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-10-28
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

In environments with limited space, conventional fastening tools are difficult to use effectively, resulting in low bolt tightening efficiency.

Method used

Design a fastening tool that includes a sleeve and a plate. The plate is fixedly connected to the sleeve. A first side arm and a second side arm extend vertically from one side of the plate. The second side arm applies rotational force to drive the sleeve to rotate, thereby tightening the bolt. This design enhances torque transmission and tool stability.

Benefits of technology

It improves the efficiency of bolt tightening, reduces the need for repeated operations due to tool instability, and enhances the convenience and safety of operation in confined spaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a fastening tool, and relates to the technical field of fastening tools. The fastening tool comprises a sleeve and a flat plate, the flat plate is provided with a through hole, the outer wall of the sleeve is fixedly connected with the inner side of the through hole, one side of the flat plate extends to form a first side arm perpendicular to the flat plate, and one side, away from the flat plate, of the first side arm extends to form a second side arm perpendicular to the first side arm. The fastening tool provided by the utility model can effectively improve the fastening efficiency of the bolt in a narrow space.
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Description

Technical Field

[0001] This utility model relates to the field of fastening tool technology, and more specifically, to a fastening tool. Background Technology

[0002] Bolt installation is a crucial step in mechanical and structural engineering, involving the connection and fixation of various equipment, components, and structures. As a commonly used fastener, bolts are widely used in construction, automotive, aerospace, and other fields due to their superior mechanical properties, ease of assembly, and convenient disassembly.

[0003] However, in some environments with limited space, conventional tools such as wrenches and sockets may be too large to fit in the space, and even if they manage to fit in, they may not be able to perform an effective tightening action, affecting the efficiency of bolt tightening. Utility Model Content

[0004] The present invention aims to improve the fastening efficiency of bolts.

[0005] To solve the above problems, this utility model provides a fastening tool, including a sleeve and a plate. The plate has a through hole, and the outer wall of the sleeve is fixedly connected to the inner side of the through hole. A first side arm extends from one side of the plate perpendicular to the plate, and a second side arm extends from the side of the first side arm away from the plate perpendicular to the first side arm.

[0006] The fastening tool provided by this utility model has, but is not limited to, the following technical effects compared with the prior art:

[0007] This utility model discloses a fastening tool comprising a sleeve and a plate. The sleeve is fixedly connected to the edge of a through hole in the plate, allowing the plate to provide stable support for the sleeve during bolt tightening. A vertical first side arm extends from one side of the plate, along with a second side arm perpendicular to the first side arm. Applying rotational force to the second side arm rotates the sleeve on the plate, thereby rotating the bolt head or nut connected to the sleeve and tightening the bolt. This avoids operational difficulties and time waste caused by insufficient operating space. The fixed connection between the sleeve and the plate, along with the structural design of the side arms, allows force to be more effectively transferred from the second side arm to the sleeve during bolt tightening. The structure formed by the plate and side arms can distribute and withstand greater torque, reducing force loss and enabling the bolt to be tightened to the required degree more quickly, thus improving tightening efficiency. Simultaneously, the fixed connection between the sleeve and the bolt increases the stability of the sleeve, preventing the tool from slipping or shifting during bolt tightening, reducing the need for repeated operations due to tool instability, and further improving bolt tightening efficiency.

[0008] Furthermore, one end of the outer arm of the sleeve is fixedly connected to the inner edge of the through hole on the upper surface of the plate.

[0009] Furthermore, the middle part of the outer arm of the sleeve is fixedly connected to the inner edge of the through hole.

[0010] Furthermore, one end of the outer arm of the sleeve is fixedly connected to the edge of the through hole on the lower surface of the plate.

[0011] Furthermore, the sleeve, the flat plate, the first side arm, and the second side arm are all made of copper.

[0012] Furthermore, the tool also includes a first right-angled triangular plate rib, one right-angled side of which is fixedly connected to the surface of the plate near the first side arm, and the other right-angled side of which is fixedly connected to the surface of the first side arm near the plate. The first right-angled triangular plate rib is perpendicular to both the plate and the second side arm.

[0013] Furthermore, the tool also includes a second right-angled triangular plate rib, one right-angled side of which is fixedly connected to the surface of the first side arm near the second side arm, and the other right-angled side of which is fixedly connected to the surface of the second side arm near the first side arm. The second right-angled triangular plate rib is perpendicular to both the first side arm and the second side arm.

[0014] Furthermore, the sleeve is a hexagonal sleeve.

[0015] Furthermore, the sleeve is a dodecagonal sleeve.

[0016] Furthermore, the sleeve is a quincunx sleeve. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the fastening tool according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a fastening tool according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of another embodiment of the present utility model;

[0020] Figure 4 This is a structural schematic diagram of a fastening tool according to an embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1-Flat plate; 2-First side arm; 3-Second side arm; 4-Sleeve; 5-First right-angled triangular plate reinforcement; 6-Second right-angled triangular plate reinforcement. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0024] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0025] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless explicitly stated otherwise in the context, they should be understood as "one or more". The term "connection" used in this utility model, unless specifically stated otherwise, can refer to a direct connection, an indirect connection via one or more intermediate components, a detachable connection, welding, or an integral connection.

[0026] like Figure 1 As shown, a fastening tool according to an embodiment of the present invention includes a sleeve 4 and a plate 1. The plate 1 has a through hole. The outer wall of the sleeve 4 is fixedly connected to the inner side of the through hole. A first side arm 2 extending from one side of the plate 1 is perpendicular to the plate 1. A second side arm 3 extending from the side of the first side arm 2 away from the plate 1 is perpendicular to the first side arm 2.

[0027] The fastening tool in this embodiment can tighten bolts in relatively confined working spaces. The tool includes a plate 1 and a sleeve 4. The plate 1 is slightly larger than the sleeve 4, making it easier for the plate 1 to enter confined spaces for bolt tightening. The sleeve 4 can be selected according to the type of bolt being tightened to ensure a tight fit on the bolt head or nut, achieving effective torque transmission. A through hole is provided in the middle of the plate 1, the diameter of which matches the diameter of the outer wall of the sleeve 4. The inner side of the through hole can be fixedly connected to the outer wall of the sleeve 4 by welding, ensuring that the sleeve 4 and the plate 1 are perpendicular, thus ensuring a strong connection and stable force. The plate 1 serves as a connector and support, making the position of the sleeve 4 relatively stable. The slightly larger size of the plate 1 than the sleeve 4 can adapt to the operating requirements of confined spaces to a certain extent, reducing the tool's footprint. The size can also be rationally designed according to the maintenance space, ensuring sufficient strength and stability without being too large and affecting operational flexibility in confined spaces. A first side arm 2 extends perpendicularly to one side of the plate 1. The length of the first side arm 2 can be set according to the depth of the working space, increasing the operating length of the tool and allowing the operator to operate the bolt from a certain distance, improving the convenience and safety of operation. At the same time, the first side arm 2 also provides support and connection points for the subsequent second side arm 3. A second side arm 3 extends perpendicularly to the first side arm 2 from the side of the first side arm 2 away from the plate 1. The extension direction of the second side arm 3 is opposite to the direction of the sleeve 4, or it can be the same as the direction of the sleeve 4, or it can extend in both directions. The extension length can be set according to the material strength of the plate 1, the first side arm 2 and the second side arm 3, as well as the size of the bolt and the sleeve 4. In actual use, the second side arm 3 can be used in conjunction with other components, such as serving as a handle for the operator to hold the tool, or it can be equipped with auxiliary devices such as anti-slip mats and hooks to improve the efficiency and safety of tool use.

[0028] In this embodiment, the fastening tool includes a sleeve 4 and a plate 1. The sleeve 4 is fixedly connected to the edge of the through hole of the plate 1, so that the plate 1 can provide stable support for the sleeve 4 during bolt tightening operations. A first side arm 2 extends vertically from one side of the plate 1, and a second side arm 3 extends perpendicularly to the first side arm 2 from the side of the first side arm 2 away from the plate 1. By applying rotational force to the second side arm 3, the sleeve 4 on the plate 1 can be rotated, thereby rotating the bolt head or nut connected to the sleeve 4, thus achieving bolt tightening. This structure can avoid operational difficulties and time waste caused by insufficient operating space. Through the fixed connection between the sleeve 4 and the plate 1 and the structural design of the side arm, when tightening the bolt, the force can be more effectively transmitted from the second side arm 3 to the sleeve 4. The structure formed by the plate 1, the first side arm 2, and the second side arm 3 can effectively transmit rotational force, reduce force loss, and thus enable the bolt to be tightened to the required degree more quickly, improving tightening efficiency. Meanwhile, the fixed connection between the sleeve 4 and the plate 1 increases the stability of the sleeve 4. When tightening the bolt, the tool is less likely to slip or deviate, reducing the need for repeated operations due to tool instability and further improving the efficiency of bolt tightening.

[0029] like Figure 2 As shown, optionally, one end of the outer arm of the sleeve 4 is fixedly connected to the inner edge of the through hole on the upper surface of the plate 1.

[0030] In this embodiment, one end of the outer wall of the sleeve 4 is fixedly connected to the edge of the through hole on the upper surface of the plate 1, so that the plate 1 is located at the bottom of the sleeve 4. When the bottom plate is rotated by the second side wall, the rotational force can be better transmitted to the bottom of the sleeve 4. Since the sleeve 4 contacts the nut or bolt head through the bottom, by transmitting sufficient rotational force to the bottom of the sleeve 4, the rotational force can be better converted into the required tightening force, and the bolt can be tightened more quickly and effectively, thereby improving the efficiency of bolt tightening.

[0031] like Figure 3 As shown, optionally, the middle part of the outer arm of the sleeve 4 is fixedly connected to the inner edge of the through hole.

[0032] In this embodiment, the sleeve 4 passes through the through hole of the base plate, and the middle position of the outer wall of the sleeve 4 is fixedly connected to the inner side of the through hole of the plate 1, so that the plate 1 is located in the middle position of the sleeve 4. When the bolt is tightened in a narrow working space, the operable space may be only a groove that can accommodate the outer diameter of the sleeve 4. The base plate cannot enter the groove. At this time, the sleeve 4 protruding from the base plate can be inserted into the groove for tightening, thereby increasing the ability of the tightening tool to cope with different working scenarios and improving the efficiency of bolt tightening in a confined space.

[0033] like Figure 4 As shown, optionally, one end of the outer arm of the sleeve 4 is fixedly connected to the edge of the through hole on the lower surface of the plate 1.

[0034] In this embodiment, one end of the outer wall of the sleeve 4 is fixedly connected to the edge of the through hole on the lower surface of the plate 1, so that the sleeve 4 is located at the bottom of the plate 1 on the side away from the first side arm 2, so that the fastening tool can have a greater working depth in the limited working space, and further improve the fastening tool's ability to handle special working scenarios.

[0035] like Figures 2 to 4 As shown, optionally, the sleeve 4, the plate 1, the first side arm 2, and the second side arm 3 are all made of copper.

[0036] In this embodiment, the fastening tools are made of the same material. In certain working environments, good electrical conductivity plays a crucial role. For example, in operations involving flammable and explosive materials, copper tools can prevent static electricity accumulation, thus preventing damage caused by electrostatic discharge leading to explosions or fires. They can safely conduct any static electricity generated, reducing the risk of accidents caused by static electricity. Furthermore, copper has good corrosion resistance, maintaining relatively stable performance in highly corrosive working environments. Whether in humid environments or in contact with corrosive chemicals, copper tools are not easily corroded or damaged. This results in a longer service life for copper tools, reducing the cost and hassle of frequent tool replacements due to corrosion.

[0037] like Figures 2 to 4 As shown, optionally, the tool also includes a first right-angled triangular plate 5, one right-angled side of the first right-angled triangular plate 5 is fixedly connected to the surface of the plate 1 near the first side arm 2, and the other right-angled side of the first right-angled triangular plate 5 is fixedly connected to the surface of the first side arm 2 near the plate 1. The first right-angled triangular plate 5 is perpendicular to the plate 1 and the second side arm 3 respectively.

[0038] In this embodiment, the first right-angled triangular rib 5 is a right-angled triangle structure. One right-angled side of the first right-angled triangular rib 5 is fixedly connected to the surface of the plate 1 near the first side arm 2, making the plate 1 and the first right-angled triangular rib 5 tightly connected, enhancing the structural strength of the plate 1 on that side. When the tool is subjected to external forces during use, the connection between the plate 1 and the first right-angled triangular rib 5 can better withstand pressure and tension, reducing the possibility of deformation or damage to the plate 1. The other right-angled side of the first right-angled triangular rib 5 is fixedly connected to the surface of the first side arm 2 near the plate 1, further strengthening the bonding force between the first side arm 2 and the first right-angled triangular rib 5. As an important force transmission part of the tool, the first side arm 2 also bears various forces during operation. Through the connection with the first right-angled triangular rib 5, the stability of the first side arm 2 is improved, enabling it to better perform its function. The first right-angled triangular rib 5 is perpendicular to both the plate 1 and the second side arm 3. This perpendicular structural relationship allows the first right-angled triangular rib 5 to effectively disperse and transmit forces from different directions. When the plate 1 or the first side arm 2 is subjected to lateral or longitudinal forces, the first right-angled triangular rib 5 can transform these forces into a direction more favorable to its own structure, thereby improving the stability and reliability of the entire tool. The setting of the first right-angled triangular rib 5 provides important support and reinforcement to the structure of the fastening tool, making it more robust and durable during use, and better able to meet various work requirements.

[0039] like Figures 2 to 4 As shown, optionally, the tool further includes a second right-angled triangular plate 6, one right-angled side of the second right-angled triangular plate 6 is fixedly connected to the surface of the first side arm 2 near the second side arm 3, and the other right-angled side of the second right-angled triangular plate 6 is fixedly connected to the surface of the second side arm 3 near the first side arm 2. The second right-angled triangular plate 6 is perpendicular to the first side arm 2 and the second side arm 3 respectively.

[0040] In this embodiment, the second right-angled triangular rib 6 is a right-angled triangle structure. One right-angled side of the second right-angled triangular rib 6 is fixedly connected to the surface of the first side arm 2 near the second side arm 3. This connection method ensures a tight bond between the triangular rib and the first side arm 2. Because it is a right-angled side connection, it can provide stable support and fixation. In actual use, when subjected to external force, the first side arm 2 can transmit the force through the connection with the triangular rib, dispersing stress and thus improving the stability and strength of the entire structure. The other right-angled side of the second right-angled triangular rib 6 is fixedly connected to the surface of the second side arm 3 near the first side arm 2. Similarly, this right-angled side connection method makes the bond between the second side arm 3 and the triangular rib firm and reliable. When the second side arm 3 is subjected to forces in different directions, the triangular rib can play a supporting and reinforcing role, preventing the second side arm 3 from deforming or being damaged. The second right-angled triangular rib 6 is perpendicular to both the first side arm 2 and the second side arm 3, maximizing its structural reinforcement function. The perpendicular angle allows the rib to withstand forces from different directions and effectively transfer these forces to other parts, thereby enhancing the overall structural rigidity. Simultaneously, the vertical design makes the structure more regular, facilitating installation and use. The placement of the second right-angled triangular rib 6 plays a crucial role in improving the stability, strength, and rigidity of the structure, providing a strong guarantee for the normal operation and reliable performance of the entire device.

[0041] Optionally, the sleeve 4 is a hexagonal sleeve.

[0042] In this embodiment, the hexagonal socket has significant advantages in its use with various hexagonal bolts and nuts. Its hexagonal shape precisely matches the bolts and nuts, reducing gaps and ensuring uniform and stable force transmission, avoiding force dispersion and loss, and improving operational efficiency and accuracy. It is convenient and efficient to operate, requiring no repeated adjustments to angle and position, allowing for quick and accurate completion of operations, thus improving work efficiency. Its adaptability is particularly evident in complex environments such as narrow spaces, corners, or deep holes, demonstrating a clear advantage over other tools.

[0043] Optionally, the sleeve 4 is a dodecagonal sleeve.

[0044] In this embodiment, the dodecagonal sleeve has significant advantages in its use with various dodecagonal bolts and nuts. It is convenient and efficient to operate, eliminating the need for repeated adjustments to angles and positions. It can complete operations quickly and accurately, improving work efficiency. Its adaptability is particularly evident in complex environments such as narrow spaces, corners, or deep holes, giving it a clear advantage over other tools.

[0045] Optionally, the sleeve 4 is a quincunx sleeve.

[0046] In this embodiment, the Torx sleeve has significant advantages in its use with various Torx bolts and nuts. It is convenient and efficient to operate, eliminating the need for repeated adjustments to angle and position. It can complete the operation quickly and accurately, improving work efficiency. Its adaptability is particularly evident in complex environments such as narrow spaces, corners, or deep holes, giving it a clear advantage over other tools.

[0047] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A fastening tool, characterized in that, It includes a sleeve (4) and a plate (1). The plate (1) has a through hole. The outer wall of the sleeve (4) is fixedly connected to the inner side of the through hole. A first side arm (2) extends from one side of the plate (1) perpendicular to the plate (1). A second side arm (3) extends from the side of the first side arm (2) away from the plate (1) perpendicular to the first side arm (2).

2. The fastening tool according to claim 1, characterized in that, One end of the outer arm of the sleeve (4) is fixedly connected to the inner edge of the through hole on the upper surface of the plate (1).

3. The fastening tool according to claim 1, characterized in that, The middle part of the outer arm of the sleeve (4) is fixedly connected to the inner edge of the through hole.

4. The fastening tool according to claim 1, characterized in that, One end of the outer arm of the sleeve (4) is fixedly connected to the edge of the through hole on the lower surface of the plate (1).

5. The fastening tool according to any one of claims 1-4, characterized in that, The sleeve (4), the plate (1), the first side arm (2), and the second side arm (3) are all made of copper.

6. The fastening tool according to any one of claims 1-4, characterized in that, It also includes a first right-angled triangular plate rib (5), one right-angled side of the first right-angled triangular plate rib (5) is fixedly connected to the surface of the plate (1) near the first side arm (2), and the other right-angled side of the first right-angled triangular plate rib (5) is fixedly connected to the surface of the first side arm (2) near the plate (1). The first right-angled triangular plate rib (5) is perpendicular to the plate (1) and the second side arm (3) respectively.

7. The fastening tool according to any one of claims 1-4, characterized in that, It also includes a second right-angled triangular plate rib (6), one right-angled side of the second right-angled triangular plate rib (6) is fixedly connected to the surface of the first side arm (2) near the second side arm (3), and the other right-angled side of the second right-angled triangular plate rib is fixedly connected to the surface of the second side arm (3) near the first side arm (2). The second right-angled triangular plate rib (6) is perpendicular to the first side arm (2) and the second side arm (3) respectively.

8. The fastening tool according to claim 1, characterized in that, The sleeve (4) is a hexagonal sleeve.

9. The fastening tool according to claim 1, characterized in that, The sleeve (4) is a dodecagonal sleeve.

10. The fastening tool according to claim 1, characterized in that, The sleeve (4) is a plum blossom sleeve.