CN210397387U - Briquetting plug screw and O type circle assembly structure - Google Patents
Briquetting plug screw and O type circle assembly structure Download PDFInfo
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- CN210397387U CN210397387U CN201920966096.5U CN201920966096U CN210397387U CN 210397387 U CN210397387 U CN 210397387U CN 201920966096 U CN201920966096 U CN 201920966096U CN 210397387 U CN210397387 U CN 210397387U
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- briquetting
- screw
- plug
- type circle
- groove
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Abstract
The utility model provides a briquetting plug screw and O type circle assembly structure, including briquetting plug screw and circular shape O type circle, the briquetting plug screw includes the head and follows the threaded rod of head downwardly extending, and the non-circular shape recess of round has been seted up along the circumference of threaded rod in the bottom of threaded rod, and O type circle assembles in the briquetting plug screw with the mode of embedding in the recess. Because the briquetting plug screw has the non-circular recess, circular shape o type circle can produce slight deformation when the assembly advances the recess of briquetting plug screw, because of o type circle deformation produces a clamp force to guarantee to screw in the in-process of screw hole at the briquetting plug screw that will take o type circle, can avoid o type circle to drop from the briquetting plug screw.
Description
Technical Field
The utility model relates to an automobile steering device field especially relates to a briquetting plug screw and O type circle assembly structure.
Background
The steering gear pressing block is a structure pressed on the steering gear rack and used for pressing the steering gear rack. For the installation of the steering gear pressing block, a pressing block screw plug is usually fixed at the top of the steering gear pressing block, and the bottom of a threaded rod of the pressing block screw plug abuts against the top of the steering gear pressing block, so that the steering gear pressing block is limited.
Fig. 1 discloses a structure diagram of an assembly of a pressure block screw plug and a steering gear pressure block in the prior art, wherein a pressure block screw plug 2a is screwed into a corresponding threaded hole (not shown) arranged on a steering gear, and the bottom of a threaded rod of the pressure block screw plug 2a abuts against the top of a steering gear pressure block 3 a. In the process of movement of the steering rack, the steering gear pressing block 3a may vibrate up and down along with the movement, so that the steering gear pressing block 3a collides with the pressing block screw plug 2a to generate abnormal sound. In order to eliminate the abnormal noise, a soft o-ring is generally fixedly mounted on the bottom of the threaded rod 21a of the pressure piece plug 2a, and the soft o-ring abuts between the pressure piece plug 2a and the steering gear pressure piece 3a, so that the abnormal noise caused by the vertical vibration of the steering gear pressure piece 3a can be eliminated.
Fig. 2-3 show an assembly of an o-ring 1a with a press block screw 2a according to the prior art. In the structure, a circle of circular groove 22a is arranged at the bottom of a threaded rod 21a along the circumferential direction of the threaded rod, and an o-shaped ring 1a is embedded in the circular groove 22a in a clearance fit mode. However, since the o-ring 1a and the circular groove 22a are in a clearance fit, the o-ring 1a may slide in the circular groove 22a and may even fall off from the circular groove 22a in the process of screwing the press block plug 2a with the o-ring 1a into the screw hole. In addition, when screwing the briquetting plug screw 2a with the o-ring 1a into the threaded hole and making the o-ring 1a contradict with the steering gear briquetting 3a, because the o-ring 1a can produce slight deformation for air can remain in the circular groove 22a, like this can produce the false moment of reaction when screwing up briquetting plug screw 2a, thereby reduce the axial force of the briquetting plug screw 2a of screwing up, lead to briquetting plug screw 2a to have not hard up risk.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a briquetting plug screw and O type circle assembly structure that drops from the briquetting plug screw can be avoided to the in-process that will take the briquetting plug screw of O type circle to twist the screw hole.
The utility model provides a briquetting plug screw and O type circle assembly structure, including briquetting plug screw and circular shape O type circle, the briquetting plug screw includes the head and follows the threaded rod of head downwardly extending, and the non-circular shape recess of round has been seted up along the circumference of threaded rod in the bottom of threaded rod, and O type circle assembles in the briquetting plug screw with the mode of embedding in the recess.
Further, the groove is elliptical or polygonal.
Further, one part of the o-ring and one part of the groove are in interference fit, and the other part of the o-ring and the other part of the groove are in clearance fit.
Further, the bottom of the threaded rod is provided with a vent hole in the middle of the threaded rod, the bottom of the threaded rod is provided with a connecting groove extending from the groove to the vent hole, and the connecting groove is communicated with the groove and the vent hole.
Further, the coupling groove is formed in a straight shape, and the vent hole is formed in a cylindrical shape.
Further, the connecting groove comprises two connecting grooves which are point-symmetrical by taking the center of the vent hole as a symmetrical center.
In conclusion, due to the fact that the pressing block screw plug is provided with the non-circular groove, when the circular o-shaped ring is assembled into the groove of the pressing block screw plug, the o-shaped ring can slightly deform, and a clamping force is generated due to the deformation of the o-shaped ring, so that the o-shaped ring can be prevented from falling off from the pressing block screw plug in the process that the pressing block screw plug with the o-shaped ring is screwed into the threaded hole.
Drawings
Fig. 1 is an assembly structure diagram of a press block screw plug and a diverter press block in the prior art.
Fig. 2 is a three-dimensional assembly structure diagram of an o-ring and a pressing block screw plug in the prior art.
FIG. 3 is a sectional assembly structure diagram of a prior art screw plug with an o-ring and a pressing block.
Fig. 4 is a three-dimensional structure diagram of the assembly structure of the pressing block plug screw and the o-shaped ring according to an embodiment of the present invention.
Fig. 5 is a sectional structure view of an assembly structure of a briquetting plug screw and an o-ring according to an embodiment of the present invention.
Fig. 6 is an assembly structure diagram of the assembly structure of the pressing block plug screw and the o-shaped ring and the steering gear pressing block according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 4-5, the assembly structure of the briquetting screw plug and the o-ring of the present invention includes the briquetting screw plug 4 and the circular o-ring 1. The briquetting screw plug 4 comprises a head 41 and a threaded rod 42 extending downwards from the head 41, a circle of non-circular groove 4 is formed in the bottom of the threaded rod 42 along the circumferential direction of the threaded rod, and the o-ring 1 is assembled on the briquetting screw plug 4 in a mode of being embedded into the groove 4. The recess 4 may for example be oval or polygonal. Because the o-shaped ring 1 is circular and the groove 4 is non-circular, the o-shaped ring 1 can be clamped on the pressing block screw plug 4 after the o-shaped ring 1 is matched with the groove 4. Therefore, in the process of screwing the press block plug screw 4 with the o-ring 1 into the threaded hole, the o-ring 1 does not slide in the groove 4, and therefore the o-ring 1 can be prevented from falling off from the groove 4.
Further, a part of the o-ring 1 and a part of the groove 4 are in interference fit, and another part of the o-ring 1 and another part of the groove 4 are in clearance fit. Therefore, the o-shaped ring 1 can be prevented from falling off from the pressing block screw plug 4, and the problem that the service life of the o-shaped ring 1 is reduced due to the fact that the whole o-shaped ring 1 is deformed due to interference fit compression can be avoided.
Further, the bottom of the threaded rod 42 is provided with a vent hole 5 at the middle position thereof, and the bottom of the threaded rod 42 is provided with a connecting groove 3 extending from the groove 2 to the vent hole 5, wherein the connecting groove 3 is communicated with the groove 2 and the vent hole 5. The shapes of the coupling groove 3 and the vent hole 5 are not limited, and in the present embodiment, the coupling groove 3 is formed in a straight shape and the vent hole 5 is formed in a cylindrical shape. And the connecting grooves 3 include two, the two connecting grooves 3 are point-symmetrical with the center of the vent 5 as the symmetrical center.
Briquetting plug screw and the assembly structure of o type circle assembly structure and steering gear briquetting are as shown in figure 6, will the utility model discloses an at the briquetting plug screw of above-mentioned embodiment assembles the in-process of steering gear briquetting 6 with o type circle assembly structure, even o type circle 1 pressurized deformation, the gas that produces between o type circle 1 and the recess 2 also can flow to air vent 5 and outwards discharge through air vent 5 along the spread groove 3 to avoid producing the axial force of false moment and reducing the briquetting plug screw 4 of screwing up when screwing up briquetting plug screw 4.
In conclusion, because the pressing block screw plug 4 is provided with the non-circular groove 4, when the circular o-shaped ring 1 is assembled into the groove 4 of the pressing block screw plug 4, the o-shaped ring 1 can slightly deform, and a clamping force is generated due to the deformation of the o-shaped ring 1, so that the o-shaped ring can be prevented from falling off from the pressing block screw plug in the process of screwing the pressing block screw plug with the o-shaped ring into the threaded hole.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a briquetting plug screw and o type circle assembly structure, its characterized in that, includes briquetting plug screw (4) and circular shape o type circle (1), briquetting plug screw (4) include head (41) and follow threaded rod (42) of head (41) downwardly extending, round non-circular recess (2) have been seted up along the circumference of threaded rod in the bottom of threaded rod (42), o type circle (1) with imbed in the mode of recess (2) assemble in briquetting plug screw (4).
2. The assembly structure of a briquetting screw plug and an o-ring according to claim 1, wherein the groove (2) is oval or polygonal.
3. The compact plug and o-ring assembly of claim 1, wherein a portion of the o-ring (1) and a portion of the groove (2) are in an interference fit, and another portion of the o-ring (1) and another portion of the groove (2) are in a clearance fit.
4. The assembly structure of a press block screw plug and an o-ring as claimed in claim 1, wherein a vent hole (5) is opened at the middle position of the bottom of the threaded rod (42), and a connecting groove (3) extending from the groove (2) to the vent hole (5) is opened at the bottom of the threaded rod (42), and the connecting groove (3) is communicated with the groove (2) and the vent hole (5).
5. The assembly structure of a briquetting screw plug and an o-ring according to claim 4, wherein the connecting groove (3) is formed in a straight line shape and the vent hole (5) is formed in a cylindrical shape.
6. The assembly structure of a briquetting screw plug and an o-ring according to claim 5, wherein the connecting groove (3) comprises two and is point-symmetrical with the center of the vent hole (5) as a symmetrical center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920966096.5U CN210397387U (en) | 2019-06-25 | 2019-06-25 | Briquetting plug screw and O type circle assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920966096.5U CN210397387U (en) | 2019-06-25 | 2019-06-25 | Briquetting plug screw and O type circle assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397387U true CN210397387U (en) | 2020-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920966096.5U Active CN210397387U (en) | 2019-06-25 | 2019-06-25 | Briquetting plug screw and O type circle assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210397387U (en) |
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2019
- 2019-06-25 CN CN201920966096.5U patent/CN210397387U/en active Active
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