Bolt connecting piece
By designing an extension rod and a raised structure for the bolt connector, the problem of bolts being difficult to install in narrow spaces was solved, achieving convenient installation and preventing thread deformation.
Patent Information
- Application Number
- CN202520807330.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-25
AI Technical Summary
Traditional bolted connections are difficult to install in narrow or confined spaces, and long-term use can easily lead to thread deformation.
A bolt connector is designed, including a bolt head, a round rod, an extension rod, and a slot. The extension rod has a frustum-shaped protrusion and an oblong protrusion, which are fixed by spot welding to increase friction and facilitate rotation and installation. The slot can be adapted to different fastening tools, and the limiting block ensures stability.
It enables easy installation and fixation in narrow or small spaces, avoids thread deformation, and improves installation efficiency and stability.
Smart Images

Figure CN223923553U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and in particular to a bolt connector. Background Technology
[0002] Connectors are used to connect objects, especially when two objects are connected at an angle. Therefore, connectors are widely used in various fields, including connecting everyday items, connecting car seats, and connecting pipes.
[0003] Bolts are a type of fastener, but in some narrow places or places with relatively small installation space, it is more troublesome to place bolts. It is not easy to align them with the threaded holes or to use tools in a way that makes installation inconvenient. Utility Model Content
[0004] This application provides a bolted connector to solve the problems mentioned in the background art.
[0005] This application provides a bolt connector, including a bolt head, a round rod on one side of the bolt head, the round rod being connected to the bolt head, the round rod having threads, an extension rod on the other side of the bolt head, one end of the extension rod being connected to the bolt head, the other end of the extension rod having a groove, and the length of the extension rod being 5-20cm.
[0006] Furthermore, the extension rod is provided with a frustum-shaped protrusion to increase the contact area.
[0007] Furthermore, the length of the frustum-shaped protrusion is 1 / 6 of the length of the extension rod, the top surface of the frustum-shaped protrusion has the same diameter as the extension rod, and the inclination angle between the frustum-shaped protrusion and the extension rod with the extension rod as the horizontal line is 50°-65°.
[0008] Furthermore, a number of limiting blocks are fixedly connected to the bolt head, and the frustum-shaped protrusion has limiting slots corresponding to the number of limiting blocks.
[0009] Furthermore, the extension rod is provided with several waist-shaped protrusions.
[0010] Furthermore, the round rod is provided with a protrusion that fits into the bolt head.
[0011] In summary, the bolted connector of this application has the beneficial effect of facilitating installation in narrow places or places with relatively small installation space. Attached Figure Description
[0012] Figure 1 A perspective view of the utility model;
[0013] Figure 2 This is the front view of the utility model.
[0014] Reference numerals in the attached drawings: 1. Bolt head; 2. Round rod; 3. Extension rod; 4. Slot; 5. Frustum-shaped protrusion; 6. Limiting block; 7. Limiting slot; 8. Waist-shaped protrusion; 9. Protrusion. Detailed Implementation
[0015] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
[0016] like Figures 1 to 2 As shown, a bolt connector includes a bolt head 1. To adapt to various situations, the bolt head 1 can have multiple shapes, such as hexagonal or circular. A round rod 2 is fixedly connected to one end of the bolt head 1. The round rod 2 has threads for connection. A protrusion 9 is provided on the round rod 2. The diameter of the protrusion 9 is smaller than the width or diameter of the bolt head 1. One end of the protrusion 9 fits against the bolt head 1. Traditional bolt connectors require the bolt connector to pass through the through holes on two parts and then use a nut to completely fix the two parts. However, the stress point of the two parts is on the threads. Over time, this can easily lead to thread deformation, making it impossible to disassemble the bolt. Therefore, the protrusion 9 is used so that the stress point is located on the protrusion 9, which will not cause thread deformation. An extension rod 3 is fixedly connected to the other end of the bolt head 1. The length of the extension rod 3 is 5-20cm. A groove 4 is provided at the other end of the extension rod 3. The shape of the groove 4 can be hexagonal, cross-shaped, or straight, etc., depending on the actual situation.
[0017] Furthermore, a frustum-shaped protrusion 5 is provided on the extension rod 3. The length of the frustum-shaped protrusion 9 is 1 / 6 of the length of the extension rod 3. The top surface of the frustum-shaped protrusion 5 has the same diameter as the extension rod 3. With the extension rod 3 as the horizontal line, the inclination angle between the frustum-shaped protrusion 5 and the extension rod 3 is 50°-65°. One end of the frustum-shaped protrusion 5 is in contact with one end of the bolt head 1. The frustum-shaped protrusion 5 and the bolt head 1 are fixedly connected by spot welding. Several waist-shaped protrusions 9 are provided on one side of the extension rod 3 located in the slot 4. If the connector is rotated by hand, the waist-shaped protrusions 9 can increase the friction and facilitate rotation.
[0018] Furthermore, a number of limiting blocks 6 are provided on the side of the bolt head 1 that contacts the frustum-shaped protrusion 5, and limiting slots 7 corresponding to the number of limiting blocks 6 are provided on the frustum-shaped protrusion 5. The welding point between the bolt head 1 and the frustum-shaped protrusion 5 is staggered from the limiting blocks 6.
[0019] The working principle of the utility model is as follows: The bolt is placed into narrow or inconvenient small spaces by extending the rod 3, and the bolt is initially fixed by rotating the rod 3. The waist-shaped protrusion 8 on the extension rod 3 increases the friction, making rotation easier. The slot 4 on the rear side of the extension rod 3 can be shaped as needed to accommodate different fastening tools. The bolt connection is fully tightened by inserting the fastening tool into the slot 4. The extension rod 3 can then be retained or removed depending on the situation. If the extension rod 3 needs to be removed, it can be removed by tapping the waist-shaped protrusion 8. Since the frustum-shaped protrusion 5 is spot-welded to the bolt head 1, the extension rod 3 can be easily removed by tapping. However, to ensure that the extension rod 3 does not fall off during the tightening process, a limiting block 6 is set on the bolt head 1 to ensure the bolt is tightened.
Claims
1. A bolted connector, comprising a bolt head (1), characterized in that, A round rod (2) is provided on one side of the bolt head (1), the round rod (2) is connected to the bolt head (1), and the round rod (2) is threaded. An extension rod (3) is provided on the other side of the bolt head (1), one end of the extension rod (3) is connected to the bolt head (1), and the other end of the extension rod (3) is provided with a groove (4). The length of the extension rod (3) is 5-20cm.
2. A bolted connector according to claim 1, characterized in that, The extension rod (3) is provided with a frustum-shaped protrusion (5) for increasing the contact area.
3. A bolted connector according to claim 2, characterized in that, The length of the frustum-shaped protrusion (5) is 1 / 6 of the length of the extension rod (3). The top surface of the frustum-shaped protrusion (5) has the same diameter as the extension rod (3). With the extension rod (3) as the horizontal line, the inclination angle between the frustum-shaped protrusion (5) and the extension rod (3) is 50°-65°.
4. A bolted connector according to claim 3, characterized in that, A number of limiting blocks (6) are fixedly connected to the bolt head (1), and the frustum-shaped protrusion (5) is provided with limiting slots (7) corresponding to the number of limiting blocks (6).
5. A bolted connector according to claim 4, characterized in that, The extension rod (3) is provided with several waist-shaped protrusions (8).
6. A bolted connector according to claim 1, characterized in that, The round rod (2) is provided with a protrusion (9), which is in contact with the bolt head (1).