CN215981053U

CN215981053U - Dustproof cap with sealing function

Info

Publication number: CN215981053U
Application number: CN202122372244.0U
Authority: CN
Inventors: 黄林辉; 郑华文; 梁平; 刘芳; 洪东登
Original assignee: Anhui Tuopusi Auto Parts Co ltd
Current assignee: Anhui Tuopusi Auto Parts Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-03-08
Anticipated expiration: 2031-09-28

Abstract

The utility model provides a dustproof cap with a sealing function, which comprises a cap body, wherein a threaded hole is formed in the cap body, an internal thread is arranged in the threaded hole, a sealing groove is formed in the bottom of the threaded hole in a settling mode, and the end part of a valve copper rod can be in contact with the sealing groove in a fitting mode. The utility model has the advantages that: through internal thread and inflating valve copper pole spiro union fixed when using to make copper pole tip stretch into in the seal groove that subsides, cooperate through seal groove and copper pole tip, prevent that gas from overflowing from the tip of copper pole, make the dust cap have the gas seal function, and simple structure does not need extra seal part, can not additionally increase the cost.

Description

Dustproof cap with sealing function

Technical Field

The utility model relates to the technical field of valve-cock dustproof caps, in particular to a dustproof cap with a sealing function.

Background

The tire is a rubber product widely used in production and life, and is provided with an inflating valve in order to facilitate inflation and deflation, wherein the inflating valve is provided with an inflating valve cap which needs to be matched with the inflating valve, and the currently used inflating valve cap comprises a sealing cap with a sealing ring and a protective cap without the sealing ring; due to the fact that the sealing ring needs to be used in a matched mode, the material and structural design are relatively complex, the cost of the sealing cap is high, and market acceptance is not high. The structure of helmet refers to fig. 1, owing to only consider dustproof function, it mainly have with inflating valve complex screw thread section can, need not special design structurally, consequently material and structural cost homogeneous phase are relatively lower, but do not have the secondary seal function, under the condition that the valve core has gas leakage, can't effectively seal inflating valve, have the potential safety hazard in the use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dustproof cap with a sealing function.

The utility model solves the technical problems through the following technical scheme: the utility model provides a dust cap with sealed function, includes the cap body, the screw hole has on the cap body, the inside internal thread that is provided with of screw hole, the bottom of screw hole is subsided and is provided with the seal groove, and the tip of inflating valve copper pole can contact with the seal groove laminating.

When the dustproof cap is used, the dustproof cap is fixed with the inflating valve copper rod in a threaded manner through the internal threads, the end part of the copper rod extends into the settled sealing groove, and the end part of the copper rod is matched with the sealing groove, so that gas is prevented from overflowing from the end part of the copper rod, the dustproof cap has a gas sealing function, is simple in structure, does not need an additional sealing part, and does not increase the cost additionally.

Preferably, when the copper rod is matched with the sealing groove, the surface of the threaded hole is abutted to the glue blocking table of the valve.

Preferably, the depth of the threaded hole is 10.2-10.8 mm.

Preferably, the seal groove is the V type structure that subsides, the terminal surface of copper pole and the both sides inclined plane that is close to the terminal surface can with the laminating of seal groove butt.

Preferably, the internal thread is arranged close to the sealing groove, and a straight section is arranged between the surface of the threaded hole and the internal thread.

Preferably, the straight section and the surface of the copper rod have a gap.

Preferably, the cap body is of a cylindrical structure, and one end, far away from the copper rod, of the cap body is provided with a dome.

Preferably, the bottom of the threaded hole is sunk towards the dome to form a cavity.

Preferably, the surface of the cap body is provided with anti-slip threads which are parallel to the axial direction of the threaded hole.

The utility model provides a dustproof cap with a sealing function, which has the advantages that: through internal thread and inflating valve copper pole spiro union fixed when using to make copper pole tip stretch into in the seal groove that subsides, cooperate through seal groove and copper pole tip, prevent that gas from overflowing from the tip of copper pole, make the dust cap have the gas seal function, and simple structure does not need extra seal part, can not additionally increase the cost. The surface of screw hole can carry out the secondary with keeping off gluey platform butt and seal, improves sealed effect. The surface of the dust cap is provided with anti-slip grains to facilitate the rotation operation.

Drawings

FIG. 1 is a schematic diagram of a prior art dust cap;

fig. 2 is a schematic view of a dust cap with a sealing function according to an embodiment of the present invention;

fig. 3 is a schematic view of a use state of the dust cap with a sealing function according to an embodiment of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described below in detail and completely with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 2, the present embodiment provides a dust cap with a sealing function, which includes a cap body 1, wherein the cap body 1 has a threaded hole 2, an internal thread 21 is disposed inside the threaded hole 2, and a sealing groove 22 is disposed at the bottom of the threaded hole 2 in a sinking manner.

Combine fig. 3, the dust cap that this embodiment provided is fixed with inflating valve copper pole 3 spiro union through internal thread 21 when using to make 3 tip of copper pole stretch into in the seal groove 22 that subsides, cooperate through

seal groove

22 and 3 tips of copper pole, prevent that gas from the tip of copper pole 3 excessive, make the dust cap have the gas seal function, and simple structure does not need extra seal part, can not additionally increase cost.

Further, referring to fig. 3, when the dust cap is used, when the copper rod 3 is matched with the sealing groove 22, the surface of the threaded hole 2 abuts against the rubber blocking table 31 of the valve, and the rubber blocking table 31 of the copper rod 3 is made of rubber and can deform under the extrusion of the dust cap. Thereby can keep off gluey platform 31 through the extrusion of the cap body 1, realize the secondary seal to gas, improve sealed effect.

The seal groove 22 is a V-shaped structure for settlement, and the end face of the copper rod 3 and the inclined planes at two sides close to the end face can be abutted and attached to the surface of the seal groove 22 respectively to realize sealing connection.

The depth of the threaded hole 2 is 10.2 mm-10.8 mm, and the specific size needs to be designed according to the exposed length of the copper rod 3 relative to the glue blocking table 31, so that when the end part of the copper rod 3 is inserted into the sealing groove 22, the surface of the cap body 1 can be abutted to the glue blocking table 31. Internal thread 21 is close to seal groove 22 and sets up, has straight section 23 between the surface of screw hole 2 and internal thread 21, have the space between straight section 23 and the surface of copper pole 3 to when screwing up the dust cap, make the space formation malleation environment between straight section 23 and the copper pole 3, improve sealed effect, conveniently take off the dust cap after screwing up for a long time.

Referring to fig. 2 and 3, the cap body 1 is of a cylindrical structure as a whole, and has a dome 11 at one end far away from the copper rod 3, and the bottom of the threaded hole 2 sinks towards the dome 11 to form a cavity 24 so as to accommodate a valve inside conveniently. The appearance of the cap body 1 is provided with anti-skid lines 12 which are parallel to the axial direction of the threaded hole 2 so as to facilitate the rotation of the dust cap.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a dust cap with sealing function which characterized in that: the valve copper rod comprises a cap body, a threaded hole is formed in the cap body, an internal thread is arranged in the threaded hole, a sealing groove is formed in the bottom of the threaded hole in a settling mode, and the end portion of the valve copper rod can be in contact with the sealing groove in a fitting mode.

2. The dust cap with a sealing function according to claim 1, wherein: when the copper rod is matched with the sealing groove, the surface of the threaded hole is abutted to the rubber blocking table of the inflating valve.

3. The dust cap with a sealing function according to claim 1, wherein: the depth of the threaded hole is 10.2-10.8 mm.

4. The dust cap with a sealing function according to claim 1, wherein: the seal groove is the V type structure that subsides, the terminal surface of copper pole and the both sides inclined plane that is close to the terminal surface can laminate with the seal groove butt.

5. The dust cap with a sealing function according to claim 1, wherein: the internal thread is close to the seal groove setting, straight section has between the surface of screw hole and the internal thread.

6. The dust cap with a sealing function according to claim 5, wherein: and a gap is formed between the straight section and the surface of the copper rod.

7. The dust cap with a sealing function according to claim 1, wherein: the cap body is of a cylindrical structure, and one end, far away from the copper rod, of the cap body is provided with a dome.

8. The dust cap with a sealing function according to claim 7, wherein: the bottom of the threaded hole sinks towards the dome to form a cavity.

9. The dust cap with a sealing function according to claim 7, wherein: the surface of the cap body is provided with anti-skid grains which are parallel to the axial direction of the threaded hole.