Anti-spray joint structure of connection hose of vehicle air compressor

Patent metadata

Field	Value
Publication number	US-11046129-B2
Application number	US-202017010639-A
Country	US
Kind code	B2
Filing date	Sep 2, 2020
Priority date	Sep 12, 2019
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

An anti-spray joint structure for a connection of an air nozzle of a tire and a connection hose of an air compressor, the air compressor contains: a box, a sealant supply can, and a connection hose. The box includes a body of the air compressor. The sealant supply can includes an open segment and a supply tube. The connection hose includes a first segment and a second segment. The second segment has an anti-spray connector which includes a fitting sleeve, and the fitting sleeve has a threaded orifice, a through orifice, and a projected shoulder. The cylindrical base includes a cylindrical room, a stepped coupling segment, a conduit, and a first stepped portion. The valve bolt includes a post, a connecting disc, multiple spaced slots, and a first seal ring. A lock element includes at least one tangent plane, a stem, and a hollow cavity.

First claim

What is claimed is:

1. An air compressor system comprising:
a box including a body of an air compressor accommodated in the box and started by a power supply;
a sealant supply can including an open segment extending downward and configured to accommodate chemical sealant for repairing a tire which is broken, and the sealant supply can including a supply tube;
a connection hose including a first segment formed on a first end of the connection hose, and the connection hose including a second segment formed on a second end the connection hose, the first segment being connected with the supply tube of the sealant supply can, and the second segment being connected with an air nozzle of the tire;
wherein the second segment has an anti-spray connector connected thereon, and the anti-spray connector includes a fitting sleeve, wherein the fitting sleeve has a threaded orifice formed in a first end thereof and having female threads, a through orifice defined on a second end of the fitting sleeve, and a projected shoulder formed on an inner wall of the through orifice, wherein a diameter of the projected shoulder is more than a diameter of the through orifice, and the threaded orifice is communicated with the through orifice;
wherein a cylindrical base includes a cylindrical room, a stepped coupling segment extending on an outer wall of a second end of the cylindrical base, and a conduit defined in the coupling segment and communicating with the cylindrical room, wherein a diameter of the cylindrical room is more than a diameter of the conduit, and the cylindrical base further includes a first stepped portion formed between the cylindrical room and the conduit;
wherein a first spring is received into the cylindrical room of the cylindrical base so that a first end of the first spring abuts against first stepped portion;
wherein a valve bolt includes a post extending on a first end thereof, a connecting disc extending from a second end of the valve bolt, and multiple spaced slots defined around the post;
wherein a first seal ring is fitted on the valve bolt;
wherein the second end of the valve bolt is put into the cylindrical room of the cylindrical base to contact with a second end of the first spring; and
wherein a lock element includes at least one tangent plane formed on an outer wall thereof, a stem extending from a first end of the lock element adjacent to the at least one tangent plane, a third stepped portion, and a hollow cavity defined in the lock element and the stem; and
wherein the multiple spaced slots of the valve bolt passes through the hollow cavity of the lock element to locate in the threaded orifice, hence the first spring forces the first seal ring of the valve bolt to contact with a connection portion of the third stepped portion and the hollow cavity matingly.

2. The air compressor system as claimed in claim 1 , wherein the fitting sleeve has a chamber defined therein, and the threaded orifice, the chamber, and the through orifice are communicated with one another; the cylindrical base further includes male threads formed on an outer wall of a first end of the cylindrical base, a recessed section formed proximate to the coupling segment, wherein a diameter of the cylindrical base is more than a diameter of the recessed section, and a second stepped portion is defined between the cylindrical base and the recessed section; the coupling segment of the cylindrical base is put into the chamber from the threaded orifice of the fitting sleeve via the through orifice, such that the projected shoulder contacts with the second stepped portion of the cylindrical base.

3. The air compressor system as claimed in claim 2 , wherein the valve bolt further includes multiple recesses formed around an outer wall of the connecting disc, a neck formed between the post and the connecting disc, and the first seal ring fitted on the neck of the valve bolt.

4. The air compressor system as claimed in claim 3 , wherein the lock element further includes a second threaded orifice formed on a second end of the lock element and having female threads, wherein a diameter of the second threaded orifice is more than a diameter of the hollow cavity, and the third stepped portion is defined between the second threaded orifice and the hollow cavity; a second seal ring is fitted onto the male threads of the cylindrical base; the lock element is connected with the cylindrical base which is coupled with the second seal ring, the first seal ring, and the first spring so that the female threads of the second threaded orifice are screwed with the male threads of the cylindrical base, the cylindrical base abuts against the third stepped portion of the lock element, and the first spring pushes the valve bolt so that the first seal ring of the valve bolt contacts with the connection portion of the third stepped portion and the hollow cavity.

5. The air compressor system as claimed in claim 4 , wherein an abutting loop has a passing orifice and is put into the first threaded orifice of the fitting sleeve to fit on the stem and to abut against the lock element.

6. The air compressor system as claimed in claim 2 , wherein the coupling segment of the cylindrical base extends out of the fitting sleeve to connect with the second segment of the connection hose, and a fixing bushing is configured to connect the connection hose and the anti-spray connector.

7. The air compressor system as claimed in claim 1 , wherein a valve core assembly is accommodated in the air nozzle of the tire, and the valve core assembly includes a mounting, an arcuate stop shoulder surrounding around a mouth of the mounting and extending inward from an end of the mounting, and an aperture defined in the mounting; a hollow receiving sleeve having a retaining shoulder formed on a first end of the hollow receiving sleeve, and a holder formed on a second end of the hollow receiving sleeve; a central needle formed in a column shape and having multiple spaced ribs formed on the central needle; a second spring fitted with the central needle and a first end of the second spring abutting against the multiple spaced ribs of the central needle; the central needle being received in the hollow receiving sleeve from the first end of the hollow receiving sleeve so that a second end of the second spring contacts with the holder, and the second spring is surrounded by the receiving hollow sleeve; a contacting loop fitted on a first end of the central needle; such that after the hollow receiving sleeve is connected with the mounting, the arcuate stop shoulder of the mounting engages with the retaining shoulder of the hollow receiving sleeve, a second end of the central needle extends out of the aperture of the mounting, and the second spring pushes the contacting loop of the central needle to close the holder of the hollow receiving sleeve.

Assignees

• Chou Wen San
• Chou Cheng Hsien

Inventors

• Chou Wen-San
• Chou Cheng-Hsien

Classifications

• B29L2030/00

  Pneumatic or solid tyres or parts thereof {(conveyor belts B29L2031/7092; drive belts B29L2031/7094; fourdrinier belts B29L2031/733)} · CPC title

• B29C73/025

  fed under pressure · CPC title

• F04B39/1013

  the members being of the poppet valve type · CPC title

• F16K15/205

  and with closure plug · CPC title

• B60C29/064 Primary

  Hose connections for pneumatic tyres, e.g. to spare wheels · CPC title