CN210715491U - Bush bolt sub-assembly - Google Patents
Bush bolt sub-assembly Download PDFInfo
- Publication number
- CN210715491U CN210715491U CN201920842687.1U CN201920842687U CN210715491U CN 210715491 U CN210715491 U CN 210715491U CN 201920842687 U CN201920842687 U CN 201920842687U CN 210715491 U CN210715491 U CN 210715491U
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- bolt
- bush
- fastening ring
- bushing
- screw
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Abstract
The utility model discloses a bush bolt sub-assembly, it relates to the fastening connection spare field. The problem of present bush and bolt easy separation in the transportation, and then influence the installation effectiveness is solved. Its technical scheme main points include the bolt, the bolt includes bolt head, flange and screw rod, the cover is equipped with bush, its characterized in that on the screw rod: a fastening ring in contact with the flange is sleeved on the screw rod, and a clamping groove matched with the fastening ring is formed in the end part of the bushing; the inner diameter of the fastening ring is in interference fit with the outer diameter of the screw rod, and the outer diameter of the fastening ring is in interference fit with the inner diameter of the clamping groove. The utility model discloses can prevent effectively that bolt and bush from separating to can improve the installation effectiveness.
Description
Technical Field
The utility model relates to a fastening connection spare field, more specifically says that it relates to a bush bolt sub-assembly.
Background
Fastening connectors are widely used for connections and applications between materials of different properties. In order to make the connection effect of the fastening connector better, a bushing is usually sleeved on the screw rod of the fastening connector, and the bushing is usually installed on the screw rod in a matching manner before the fastening connector leaves a factory, so that the fastening connector is more convenient to use at a later stage.
However, in order to make the bushing fit on the screw, the inner diameter of the bushing is designed to be equal to the width of the threaded portion of the screw, and the bushing is directly fit on the screw.
SUMMERY OF THE UTILITY MODEL
To the deficiency that prior art exists, the utility model aims to provide a bush bolt sub-assembly, it has the advantage that prevents bush and bolt separation to can improve the installation effectiveness.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a bush and bolt assembly comprises a bolt, wherein the bolt comprises a bolt head, a flange and a screw rod, a bush is sleeved on the screw rod, a fastening ring in contact with the flange is sleeved on the screw rod, and a clamping groove matched with the fastening ring is formed in the end part of the bush; the inner diameter of the fastening ring is in interference fit with the outer diameter of the screw rod, and the outer diameter of the fastening ring is in interference fit with the inner diameter of the clamping groove.
Further, the cross section of the fastening ring is circular.
Further, a gap is formed between the bushing and the flange.
Furthermore, a plurality of punching points are arranged on the bushing, namely a plurality of concave parts are formed on the outer side wall of the bushing, and a convex part which is contacted with the screw rod is formed on the inner side wall of the bushing corresponding to the concave parts.
To sum up, the utility model discloses following beneficial effect has:
1. the fastening ring is adopted, so that the effect of preventing the bolt from being separated from the bushing is achieved, and the mounting efficiency is improved;
2. the section of the fastening ring is circular, so that the effect of improving the assembly efficiency is achieved;
3. the boss is employed, thereby producing an effect of further preventing the bolt from being separated from the bush.
Drawings
Fig. 1 is a sectional view of a bush bolt assembly in embodiment 1;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a sectional view of a bushing bolt assembly according to embodiment 2.
In the figure: 11. a bolt head; 12. a flange; 13. a screw; 2. a bushing; 21. a card slot; 22. a recessed portion; 23. a boss portion; 3. and (6) fastening the ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Example 1:
a bush bolt assembly, refer to fig. 1 and 2, comprises a bolt, wherein the bolt comprises a bolt head 11, a flange 12 and a screw 13, a bush 2 is sleeved on the screw 13, a fastening ring 3 in contact with the flange 12 is sleeved on the screw 13, and a clamping groove 21 matched with the fastening ring 3 is formed in the end part of the bush 2; in the embodiment, the section of the fastening ring 3 is circular, the inner diameter of the fastening ring 3 is in interference fit with the outer diameter of the screw 13, and the outer diameter of the fastening ring is in interference fit with the inner diameter of the clamping groove 21; the section of the fastening ring 3 is circular, so that the fastening ring can be conveniently embedded into the clamping groove 21, and the assembly efficiency is improved; in the embodiment, the fastening ring 3 is preferably made of aluminum material, and the bushing 2 and the flange 12 are arranged with a gap therebetween.
The working principle is as follows:
during installation, the fastening ring 3 is sleeved on the screw 13, then the bushing 2 is sleeved on the screw 13, and the fastening ring 3 is embedded in the clamping groove 21; the fastening ring 3, the screw 13 and the clamping groove 21 are in interference fit, so that the fastening ring, the screw 13 and the clamping groove 21 cannot be separated after installation, and the installation efficiency can be improved; meanwhile, the lining 2 and the flange 12 are arranged in a clearance mode, the fastening ring 3 is made of aluminum, and after the bolt is fastened with the lining 2, the fastening ring 3 is extruded and deformed, so that the fastening performance of the bolt connected with the lining 2 can be improved, and the bolt and the lining are prevented from being separated.
Example 2:
a bush bolt assembly, referring to fig. 3, based on embodiment 1, the present embodiment is different from embodiment 1 in that: the bush 2 is provided with a plurality of punching points, namely, a plurality of concave parts 22 are formed on the outer side wall of the bush 2, and a convex part 23 which is contacted with the screw 13 is formed on the inner side wall of the bush corresponding to the concave parts 22; the boss 23 is in contact with the screw 13, and the bolt can be further prevented from being separated from the bush 2.
Claims (4)
1. A bush-bolt combination, comprising a bolt including a bolt head (11), a flange (12) and a screw (13), the screw (13) being sleeved with a bush (2), characterized in that: the screw (13) is sleeved with a fastening ring (3) which is in contact with the flange (12), and the end part of the bushing (2) is provided with a clamping groove (21) which is matched with the fastening ring (3); the inner diameter of the fastening ring (3) is in interference fit with the outer diameter of the screw rod (13), and the outer diameter of the fastening ring is in interference fit with the inner diameter of the clamping groove (21).
2. The bushing bolt assembly of claim 1, wherein: the section of the fastening ring (3) is circular.
3. The bushing bolt assembly of claim 1, wherein: the bush (2) and the flange (12) are arranged in a clearance mode.
4. A bushing bolt assembly according to any of claims 1-3, wherein: the bushing (2) is provided with a plurality of punching points, namely a plurality of concave parts (22) are formed on the outer side wall of the bushing (2), and a convex part (23) which is contacted with the screw (13) is formed on the inner side wall of the bushing corresponding to the concave parts (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920842687.1U CN210715491U (en) | 2019-06-05 | 2019-06-05 | Bush bolt sub-assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920842687.1U CN210715491U (en) | 2019-06-05 | 2019-06-05 | Bush bolt sub-assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210715491U true CN210715491U (en) | 2020-06-09 |
Family
ID=70935164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920842687.1U Active CN210715491U (en) | 2019-06-05 | 2019-06-05 | Bush bolt sub-assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210715491U (en) |
-
2019
- 2019-06-05 CN CN201920842687.1U patent/CN210715491U/en active Active
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| GR01 | Patent grant | ||
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