Bolt with dismounting assembly

By designing a sliding and magnetic fit between the bolt head and the cylinder, the disassembly problem when traditional bolts are stuck or stripped is solved, enabling convenient disassembly and reducing maintenance costs and workload.

CN224352242UActive Publication Date: 2026-06-12NINGBO SWIKUO MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SWIKUO MASCH CO LTD
Filing Date
2025-08-18
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

When traditional bolts become stuck or stripped, conventional tools struggle to apply effective tightening torque, leading to difficult, time-consuming, and labor-intensive disassembly, and potentially damaging the connecting parts.

Method used

A bolt with a disassembly assembly was designed, including a bolt head, a cylinder, a guide post, a vertical plate, a semi-cylinder, and a locating pin. The bolt can be easily disassembled through sliding and magnetic attraction.

🎯Benefits of technology

It enables convenient disassembly of jammed or stripped bolts, avoiding destructive disassembly and reducing maintenance costs and workload.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224352242U_ABST
    Figure CN224352242U_ABST
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Abstract

The utility model belongs to bolt technical field, concretely relates to a bolt with dismounting assembly, the bolt with dismounting assembly, including bolt head, the bottom fixedly connected with cylinder of bolt head, the left and right sides of cylinder inner wall all are fixedly connected with guide post, the inside of bolt head is equipped with first rectangle hole, the inner wall of first rectangle hole is combined and set up with riser, the inside of riser is equipped with second rectangle hole, the inner wall of second rectangle hole is combined with the surface of guide post, the left side of cylinder inner wall and the bottom of bolt head all are combined and set up with first semicircle cylinder. The bolt with dismounting assembly through the round block of riser and arc slot alignment, and left and right slide bolt head, can make the bolt and the gap between mounting hole or nut, at this moment, can directly remove the bolt that cannot be twisted out from the threaded mounting hole or nut normally because of jam or slip tooth, thereby make the bolt more convenient when dismounting.
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Description

Technical Field

[0001] This utility model belongs to the field of bolt technology, and specifically relates to a bolt with a disassembly component. Background Technology

[0002] Bolts are a commonly used fastener in many fields such as machinery manufacturing, construction and installation, and equipment maintenance. They are used to fix parts through threaded connections and have a wide range of applications.

[0003] However, when bolts become stuck or stripped, conventional wrenches and other tools are insufficient to apply effective tightening torque, making it impossible to unscrew the bolts from the mounting holes or nuts. In such cases, destructive methods such as cutting or hammering are often required for disassembly, which is not only time-consuming and labor-intensive but may also damage the connecting parts, increasing maintenance costs and workload, and causing great inconvenience to actual operations. Utility Model Content

[0004] The purpose of this invention is to provide a bolt with a disassembly component, which solves the technical problem that when traditional bolts become stuck or stripped, conventional tools are unable to apply effective tightening torque to achieve normal disassembly, requiring destructive methods such as cutting and hammering, which leads to low maintenance efficiency, increased maintenance costs, and easy damage to the connecting parts.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A bolt with a disassembly assembly includes a bolt head, to which a cylinder is fixedly connected. Guide posts are fixedly connected to the left and right sides of the inner wall of the cylinder. A first rectangular hole is formed inside the bolt head, and a vertical plate is fitted to the inner wall of the first rectangular hole. A second rectangular hole is formed inside the vertical plate, and the inner wall of the second rectangular hole is fitted to the surface of the guide posts. A first semi-cylinder is fitted to the left side of the inner wall of the cylinder and the bottom of the bolt head, and a second semi-cylinder is fitted to the right side of the inner wall of the cylinder and the bottom of the bolt head. The inner surface of the first semi-cylinder... Both the first and second semi-cylinders have circular holes inside, with the inner walls of the holes fitting against the surface of the guide post. Both the surfaces of the first and second semi-cylinders have threaded grooves. The vertical plate has a first through hole inside, with a circular block fixedly connected to the inner wall of the first through hole. The left and right sides of the circular block fit against the right side of the first semi-cylinder and the left side of the second semi-cylinder, respectively. Both the right side of the first semi-cylinder and the left side of the second semi-cylinder have arc-shaped grooves. The vertical plate has a positioning hole inside, with positioning pins fitted against the inner wall of the positioning hole and the upper surface of the bolt head.

[0007] The present invention is further configured such that grooves are provided on both the front and rear sides of the positioning pin, and U-shaped spring pieces are fixedly connected to the inner walls of the grooves, and the left and right sides of the vertical plate are in contact with the inner walls of the U-shaped spring pieces.

[0008] The present invention is further configured such that the thickness of the U-shaped spring is less than the depth of the groove, and the elastic force of the U-shaped spring is greater than the sum of the weight of the U-shaped spring and the positioning pin.

[0009] The present invention is further configured such that the arc-shaped groove is located below the circular block, and the diameter of the arc-shaped groove is equal to the diameter of the circular block.

[0010] The present invention is further configured such that the shape of the first semi-cylinder is the same as that of the second semi-cylinder, and the axes of the first semi-cylinder and the second semi-cylinder both coincide with the center line of the bolt head.

[0011] The present invention is further configured such that a second through hole is provided inside the vertical plate, and a magnetic block is fixedly connected to the inner wall of the second through hole.

[0012] The technical effects achieved by this utility model are as follows:

[0013] This utility model's bolt with a disassembly assembly, through the cooperation of the bolt head, cylinder, guide post, first rectangular hole, vertical plate, second rectangular hole, first semi-cylinder, second semi-cylinder, round hole, first through hole, circular block, arc groove, positioning hole, and positioning pin, allows the bolt to be removed from the threaded mounting hole or nut when it is stuck or stripped. By aligning the circular block of the vertical plate with the arc groove and sliding the bolt head left and right, gaps are created between the first and second semi-cylinders on the bolt and the mounting hole or nut. At this point, the bolt that is stuck or stripped can be directly removed from the threaded mounting hole or nut, making the bolt disassembly more convenient.

[0014] The bolt with a disassembly component of this utility model has a U-shaped spring plate installed on the positioning pin. The elastic force of the U-shaped spring plate is greater than the sum of the weight of the U-shaped spring plate and the positioning pin. Therefore, when the positioning pin is inserted into the positioning hole, the U-shaped spring plate can prevent the positioning pin from sliding out of the positioning hole due to vibration. Thus, through the cooperation of the positioning pin and the positioning hole, the vertical plate can be firmly fixed in the first rectangular hole. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is a bottom view of the structure of this utility model;

[0017] Figure 3 This is a top view of the structure of this utility model;

[0018] Figure 4 yes Figure 3 Sectional view at point AA;

[0019] Figure 5 This is a bottom view of the bolt head in this utility model;

[0020] Figure 6 This is a left view of the vertical plate in this utility model;

[0021] Figure 7 This is a right view of the first semi-cylinder in this utility model;

[0022] Figure 8 This is a front view of the locating pin in this utility model;

[0023] Figure 9 yes Figure 8 Sectional view at point BB.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Bolt head; 2. Cylinder; 3. Guide post; 4. First rectangular hole; 5. Vertical plate; 6. Second rectangular hole; 7. First semi-cylinder; 8. Second semi-cylinder; 9. Circular hole; 10. Threaded groove; 11. First through hole; 12. Circular block; 13. Arc groove; 14. Positioning hole; 15. Positioning pin; 16. Groove; 17. U-shaped spring; 18. Second through hole; 19. Magnetic block. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] like Figures 1 to 7As shown, a bolt with a disassembly assembly includes a bolt head 1. A cylinder 2 is fixedly connected to the bottom of the bolt head 1. Guide posts 3 are fixedly connected to both the left and right sides of the inner wall of the cylinder 2. A first rectangular hole 4 is opened inside the bolt head 1. A vertical plate 5 is fitted into the inner wall of the first rectangular hole 4. A second rectangular hole 6 is opened inside the vertical plate 5. The inner wall of the second rectangular hole 6 is fitted into the surface of the guide post 3. A first semi-cylinder 7 is fitted into the left side of the inner wall of the cylinder 2 and the bottom of the bolt head 1. A second semi-cylinder 8 is fitted into the right side of the inner wall of the cylinder 2 and the bottom of the bolt head 1. The inner wall of the first semi-cylinder 7 and the second semi-cylinder 8 are fitted into the cylinder head 1. The cylinder 8 has a circular hole 9 inside, and the inner wall of the circular hole 9 is in contact with the surface of the guide post 3. The surface of the first semi-cylinder 7 and the surface of the second semi-cylinder 8 are both provided with threaded grooves 10. The vertical plate 5 has a first through hole 11 inside, and a circular block 12 is fixedly connected to the inner wall of the first through hole 11. The left and right sides of the circular block 12 are in contact with the right side of the first semi-cylinder 7 and the left side of the second semi-cylinder 8, respectively. The right side of the first semi-cylinder 7 and the left side of the second semi-cylinder 8 are both provided with arc grooves 13. The vertical plate 5 has a positioning hole 14 inside, and a positioning pin 15 is provided in contact with the inner wall of the positioning hole 14 and the upper surface of the bolt head 1.

[0029] Among them, the arc groove 13 is located below the circular block 12, and the diameter of the arc groove 13 is equal to the diameter of the circular block 12. The shape of the first semi-cylinder 7 is the same as the shape of the second semi-cylinder 8, and the axes of the first semi-cylinder 7 and the second semi-cylinder 8 coincide with the center line of the bolt head 1. The interior of the vertical plate 5 is provided with a second through hole 18, and a magnetic block 19 is fixedly connected to the inner wall of the second through hole 18.

[0030] It should be noted that the vertical plate 5 can slide up and down in the first rectangular hole 4. The movement of the vertical plate 5 is restricted by the cooperation of the second rectangular hole 6 and the guide post 3. The first semi-cylinder 7 and the second semi-cylinder 8 can only move left and right by the cooperation of the round hole 9 and the guide post 3, and the first semi-cylinder 7 and the second semi-cylinder 8 are connected to the bolt head 1.

[0031] When the circular block 12 of the vertical plate 5 is misaligned with the arc groove 13, and the positioning pin 15 is inserted into the positioning hole 14, the vertical plate 5 can be prevented from moving out of the first rectangular hole 4 through the cooperation of the positioning pin 15, the positioning hole 14, the guide post 3, and the second rectangular hole 6. The circular block 12 ensures that the first semi-cylinder 7 and the second semi-cylinder 8 are tightly fitted to the inner wall of the cylinder 2. At this time, the bolt can be screwed into the threaded mounting hole or nut through the threaded groove 10 on the first semi-cylinder 7 and the second semi-cylinder 8.

[0032] When the locating pin 15 is moved out of the locating hole 14 and the circular block 12 on the vertical plate 5 is aligned with the arc groove 13, the bolt head 1 can be slid left and right to make the first semi-cylinder 7 and the second semi-cylinder 8 fit against the vertical plate 5. Alternatively, the magnetic block 19 can attract the first semi-cylinder 7 and the second semi-cylinder 8 to fit against the vertical plate 5, and create a certain gap between the bolt and the threaded mounting hole or nut. At this time, the bolt can be directly removed from the mounting hole or nut.

[0033] like Figures 1 to 9 As shown, grooves 16 are provided on both the front and rear sides of the positioning pin 15. U-shaped spring pieces 17 are fixedly connected to the inner wall of the grooves 16, and the left and right sides of the vertical plate 5 are in contact with the inner wall of the U-shaped spring pieces 17.

[0034] The thickness of the U-shaped spring 17 is less than the depth of the groove 16, and the elastic force of the U-shaped spring 17 is greater than the sum of the weights of the U-shaped spring 17 and the positioning pin 15.

[0035] It should be noted that by installing a U-shaped spring 17 on the positioning pin 15, and the elastic force of the U-shaped spring 17 is greater than the sum of the weight of the U-shaped spring 17 and the positioning pin 15, the positioning pin 15 will not slide out of the positioning hole 14 due to vibration after being inserted into the positioning hole 14 by means of the U-shaped spring 17. Thus, through the cooperation of the positioning pin 15 and the positioning hole 14, the vertical plate 5 can be firmly fixed in the first rectangular hole 4.

[0036] The working principle of this utility model is as follows: First, by moving the vertical plate 5 upward, the circular block 12 is offset from the arc groove 13, and the positioning pin 15 is inserted into the positioning hole 14. At this time, through the cooperation of the positioning pin 15, the positioning hole 14, the guide post 3 and the second rectangular hole 6, the vertical plate 5 can not be moved out of the first rectangular hole 4, and through the circular block 12, the first semi-cylinder 7 and the second semi-cylinder 8 are tightly fitted to the inner wall of the cylinder 2.

[0037] Then, by clamping and rotating the bolt head 1 with a wrench, the bolt can be screwed into the threaded mounting hole or nut through the threaded grooves 10 on the first semi-cylinder 7 and the second semi-cylinder 8.

[0038] When the bolt needs to be removed, if the bolt can be turned normally, the bolt head 1 can be clamped and rotated with a wrench to unscrew it from the threaded mounting hole or nut. If the bolt is stuck or stripped, the locating pin 15 should be moved out of the locating hole 14 first. Then, by moving the vertical plate 5 downward, the circular block 12 is aligned with the arc groove 13. At this time, since the circular block 12 no longer limits the first semi-cylinder 7 and the second semi-cylinder 8, the magnetic block 19 can attract the first semi-cylinder 7 and the second semi-cylinder 8 to fit against the vertical plate 5, and there is a certain gap between the bolt and the threaded mounting hole or nut. At this time, the bolt can be directly removed from the mounting hole or nut.

[0039] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A bolt having a disassembly assembly, characterized in that: The device includes a bolt head (1), to which a cylinder (2) is fixedly connected. Guide posts (3) are fixedly connected to both the left and right sides of the inner wall of the cylinder (2). A first rectangular hole (4) is opened inside the bolt head (1). A vertical plate (5) is fitted to the inner wall of the first rectangular hole (4). A second rectangular hole (6) is opened inside the vertical plate (5). The inner wall of the second rectangular hole (6) is fitted to the surface of the guide post (3). A first semi-cylinder (7) is fitted to the left side of the inner wall of the cylinder (2) and the bottom of the bolt head (1). A second semi-cylinder (8) is fitted to the right side of the inner wall of the cylinder (2) and the bottom of the bolt head (1). The interior of the first semi-cylinder (7) and the interior of the second semi-cylinder (8) are fitted together. All are provided with a circular hole (9), the inner wall of the circular hole (9) is in contact with the surface of the guide post (3), the surface of the first semi-cylinder (7) and the surface of the second semi-cylinder (8) are provided with threaded grooves (10), the interior of the vertical plate (5) is provided with a first through hole (11), the inner wall of the first through hole (11) is fixedly connected with a circular block (12), the left and right sides of the circular block (12) are in contact with the right side of the first semi-cylinder (7) and the left side of the second semi-cylinder (8) respectively, the right side of the first semi-cylinder (7) and the left side of the second semi-cylinder (8) are provided with arc grooves (13), the interior of the vertical plate (5) is provided with a positioning hole (14), the inner wall of the positioning hole (14) and the upper surface of the bolt head (1) are both provided with positioning pins (15).

2. The bolt with a disassembly assembly according to claim 1, characterized in that: The positioning pin (15) has grooves (16) on both the front and rear sides. The inner wall of the groove (16) is fixedly connected to a U-shaped spring piece (17). The left and right sides of the vertical plate (5) are in contact with the inner wall of the U-shaped spring piece (17).

3. The bolt with a disassembly assembly according to claim 2, characterized in that: The thickness of the U-shaped spring (17) is less than the depth of the groove (16), and the elastic force of the U-shaped spring (17) is greater than the sum of the weight of the U-shaped spring (17) and the positioning pin (15).

4. The bolt with a disassembly assembly according to claim 1, characterized in that: The arc groove (13) is located below the circular block (12), and the diameter of the arc groove (13) is equal to the diameter of the circular block (12).

5. The bolt with a disassembly assembly according to claim 1, characterized in that: The shape of the first semi-cylinder (7) is the same as that of the second semi-cylinder (8), and the axes of the first semi-cylinder (7) and the second semi-cylinder (8) coincide with the center line of the bolt head (1).

6. The bolt with a disassembly assembly according to claim 1, characterized in that: The vertical plate (5) has a second through hole (18) inside, and a magnetic block (19) is fixedly connected to the inner wall of the second through hole (18).