CN218845222U

CN218845222U - Automatic pressure relief valve for automobile tire

Info

Publication number: CN218845222U
Application number: CN202223352922.8U
Authority: CN
Inventors: 王红军; 龚春俊
Original assignee: Kangcheng Jiangsu Machinery Manufacturing Co ltd
Current assignee: Kangcheng Jiangsu Machinery Manufacturing Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-04-11
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses an automatic relief valve for automobile tire, including the valve body subassembly, the upper end of valve body subassembly can be dismantled and be connected with seal assembly, and the inside movable mounting of valve body subassembly has pressure release subassembly, and the valve body subassembly includes the pressure release pipe, the first spiro of lower extreme fixedly connected with of pressure release pipe, the lower extreme fixedly connected with sealing ring of first spiro, the equal fixed mounting in inside both ends of pressure release pipe has the spacing ring. The utility model discloses a valve body subassembly cooperation seal assembly not only can carry out double sealing to automatic relief valve, can also be convenient for dismantle the change to seal assembly simultaneously, saves time, and it is convenient for the user to provide, not only can carry out automatic pressure release through valve body subassembly cooperation pressure release assembly in addition, can also carry out manual pressure release simultaneously as required to strengthen automatic relief valve's commonality.

Description

Automatic pressure relief valve for automobile tire

Technical Field

The utility model relates to a relief valve field specifically is an automatic relief valve for automobile tire.

Background

Automobile tire is an important accessory in the automobile component structure, need usually inspect automobile tire before driving the car, whether the gas of looking over the tire inside is sufficient, when the tire gas is too sufficient needs the pressure release, usually need to use automatic relief valve, wherein the application number "CN201320121018.8" the disclosed "automatic relief valve" is also technology mature day by day, its "automatic relief valve is small, bury inside the equipment at valve body rear portion, the screw thread and the equipment of valve body outer wall pass through threaded engagement and are connected, make the relief valve most be located inside the equipment, only the front portion exposes outside, make automatic relief valve be difficult for leading to the fact the damage because of the striking, valve body front end outer wall is the hexagon, can directly use the spanner to fix the relief valve, easy to assemble, automatic through the rubber gasket top tight to the valve head, water flows from the gap department of gasket and valve head and does not damage the rubber gasket, make automatic relief valve repeatedly usable", but this in the use, still has following defect: the pressure relief valve can really achieve the effect of sealing the pressure relief valve by matching the arranged rubber sealing sheet with the valve head, but the sealing gasket is arranged inside the pressure relief valve and connected with the valve head, so that time is consumed during disassembly and replacement, and on the basis, the pressure relief valve is convenient and fast to disassemble and assemble, convenient to replace and time-saving is necessary;

the gravity automatic pressure release valve disclosed by the application number of CN202222382099.9 is an increasingly mature technology, the valve rod of the automatic pressure release valve and the linear bearing are guided to always keep vertical movement, and a compression spring above the valve rod of the automatic pressure release valve is used for buffering and protecting. When the pressure drops below the preset pressure, the automatic pressure relief valve prevents the valve plate from falling down by the self weight and pressing to the third sealing element to form sealing again, but the pressure relief valve has the following defects in the use process: this relief valve cooperates compression spring and valve plate through the valve rod that sets up and mutually supports and can play the effect of automatic pressure release really, but this relief valve structure is when carrying out the pressure release, only can carry out automatic pressure release after reaching sufficient pressure, can't carry out manual pressure release according to user's needs, based on this, provides one kind and can enough automatic pressure release, again can manual pressure release, and the relief valve of reinforcing commonality is necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic relief valve is used to automobile tire to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic pressure relief valve for automobile tires comprises a valve body assembly, wherein the upper end of the valve body assembly is detachably connected with a sealing assembly, and a pressure relief assembly is movably mounted in the valve body assembly;

the valve body assembly comprises a pressure relief pipe, the lower end of the pressure relief pipe is fixedly connected with a first spiral ring, the lower end of the first spiral ring is fixedly connected with a sealing ring, and limiting rings are fixedly mounted at two ends of the interior of the pressure relief pipe.

As an optimized scheme of the utility model, first pressure release hole has been seted up to the side surface of sealing ring, the thread groove has been seted up to the upper end of pressure release pipe.

As a preferred scheme of the utility model, seal assembly is including sealed head, the lower extreme fixedly connected with second spiro of sealed head, second pressure release hole has been seted up to the side surface of sealed head, the through-hole has been seted up to the inside of sealed head, second spiro threaded connection is in the inside of thread groove.

As a preferred scheme of the utility model, the pressure release subassembly includes reset spring, the equal fixedly connected with lantern ring in reset spring's both ends, the fixed surface of the lantern ring is connected with the sleeve pipe, sleeve pipe and reset spring's the equal activity of inside is pegged graft and is had flexible subassembly.

As a preferred scheme of the utility model, flexible subassembly is including pegging graft in the telescopic link of intraduct, the third pressure release hole has all been seted up at the both ends of telescopic link, the telescopic link is the cavity material.

As a preferred scheme of the utility model, pressure release pipe, sealed head and telescopic link are the copper alloy material, the diameter of through-hole and the diameter of telescopic link equal.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a valve body subassembly that sets up, seal assembly mutually supports not only can make the relief valve possess good leakproofness, it is more convenient simultaneously when changing seal assembly, when using, with first spiro threaded connection in automobile tire valve inside, peg graft completely through the sealing ring and can play preliminary sealed effect in the tire inside, then with second spiro threaded connection in the thread groove inside, thereby can play the effect of secondary seal, compare in the prior art "automatic relief valve" and the seal gasket that the valve head is connected plays sealed effect, the utility model discloses not only can strengthen the leakproofness of relief valve through the dual structure, can also be convenient for dismantle the change seal assembly simultaneously, consequently can save time, provide convenient for the user;

2. the utility model discloses still simultaneously through the valve body subassembly that sets up, seal assembly and pressure release subassembly mutually support, not only can carry out the pressure release to automobile tire automatically, simultaneously can also carry out manual pressure release as required, when using, when the pressure of car inside is sufficient to reach the critical point, gas in the tire passes through inside the valve core entering pressure release pipe, gaseous pressure action is on the lantern ring and the reset spring of pressure release pipe end, reset spring shrink, the telescopic link is upwards stretched out and is inserted inside the through-hole simultaneously, the third pressure release hole of telescopic link upper end both sides and the coincidence of the second pressure release hole of sealed head both sides this moment, gas passes third pressure release hole and second pressure release hole and enters into pressure release pipe inside under the atmospheric pressure effect this moment, again through pressure release pipe and through-hole outflow, thereby reach the purpose of automatic pressure release valve, when needs manual pressure release valve, press the inward contraction of telescopic link, make the third pressure release hole and the coincidence of first pressure release hole of telescopic link, thereby make gas pass the telescopic link and the outflow, reach the purpose of manual pressure release, automatic pressure release valve in prior art "gravity is compared", the utility model discloses an automatic pressure release valve not only can carry out according to the needs, consequently, the universal telescopic link of the pressure release lower extreme can also can strengthen according to the while.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the valve body assembly and seal assembly of the present invention;

FIG. 3 is a structural bottom view of the valve body assembly and the sealing assembly of the present invention;

FIG. 4 is a schematic view of the pressure relief assembly of the present invention;

fig. 5 is a sectional view of the telescopic assembly of the present invention.

In the figure: 1. a valve body assembly; 11. a pressure relief pipe; 12. a first spiro ring; 13. a seal ring; 14. a limiting ring; 131. a first pressure relief vent; 132. a thread groove; 2. a seal assembly; 21. a sealing head; 22. a second spiro ring; 23. a second pressure relief vent; 24. a through hole; 3. a pressure relief assembly; 31. a return spring; 32. a collar; 33. a sleeve; 34. a telescoping assembly; 341. a telescopic rod; 342. and a third pressure relief vent.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: an automatic pressure relief valve for an automobile tire comprises a valve body assembly 1, wherein the upper end of the valve body assembly 1 is detachably connected with a sealing assembly 2, and a pressure relief assembly 3 is movably mounted in the valve body assembly 1;

the valve body assembly 1 comprises a pressure relief pipe 11, a first spiral ring 12 is fixedly connected to the lower end of the pressure relief pipe 11, a sealing ring 13 is fixedly connected to the lower end of the first spiral ring 12, and limiting rings 14 are fixedly mounted at two ends of the interior of the pressure relief pipe 11.

It is specific, not only can seal automatic relief valve and valve inside through the dual structure through valve body assembly 1 cooperation seal assembly 2, can also be convenient for dismantle the change to automatic relief valve simultaneously, consequently, can save time, it is convenient for the user to provide, not only can carry out automatic pressure release to automobile tire through valve body assembly 1 cooperation pressure release assembly 3, simultaneously can also carry out manual pressure release as required, thereby can strengthen the commonality of automatic relief valve, the first spiro 12 of pressure release pipe 11 cooperation and sealing ring 13 can be connected self and automobile tire valve inside, simultaneously can also seal automatic relief valve through sealing ring 13, spacing ring 14 is used for spacing pressure release assembly 3.

In this embodiment: a first pressure release hole 131 is formed in a side surface of the sealing ring 13, and a thread groove 132 is formed in an upper end of the pressure release pipe 11.

Specifically, the first pressure relief hole 131 is used for manual pressure relief when necessary, and the screw groove 132 is used for sealing the sealing assembly 2 and the pressure relief pipe 11.

In this embodiment: the seal assembly 2 comprises a seal head 21, the lower end of the seal head 21 is fixedly connected with a second spiral ring 22, a second pressure relief hole 23 is formed in the side surface of the seal head 21, a through hole 24 is formed in the seal head 21, and the second spiral ring 22 is in threaded connection with the inside of the thread groove 132.

Specifically, the second spiral ring 22 is screwed in the thread groove 132, so that the sealing head 21 and the pressure relief pipe 11 can be connected in a sealing manner, the sealing head 21 can be conveniently detached and replaced when needed, and the second pressure relief hole 23 is used for automatic pressure relief.

In this embodiment: pressure relief subassembly 3 includes reset spring 31, and the equal fixedly connected with lantern ring 32 in reset spring 31's both ends, and the fixed surface of lantern ring 32 is connected with sleeve pipe 33, and sleeve pipe 33 and reset spring 31's inside is the activity grafting all has telescopic assembly 34.

Specifically, return spring 31 contracts under the effect of atmospheric pressure when automatic pressure release or receive the pressure release to make expansion and contraction subassembly 34 flexible, at this in-process, lantern ring 32 cooperation spacing ring 14 can be spacing self and return spring 31.

In this embodiment: the telescopic assembly 34 comprises a telescopic rod 341 inserted into the casing 33, third pressure relief holes 342 are formed at two ends of the telescopic rod 341, and the telescopic rod 341 is made of a hollow material.

Specifically, when the telescopic link 341 upwards stretches out, enter into inside the through-hole 24, third pressure release hole 342 and the coincidence of second pressure release hole 23 of telescopic link 341 upper end this moment, can accomplish automatic pressure release work, when holding down telescopic link 341 and make reset spring 31 stretch out downwards, telescopic link 341 is pegged graft inside sealing ring 13 and third pressure release hole 342 and the coincidence of first pressure release hole 131, accomplish manual pressure release work, the telescopic link 341 of cavity material can play the effect of pouring to the inside gas of tire.

In this embodiment: the pressure relief pipe 11, the sealing head 21 and the telescopic rod 341 are made of copper alloy materials, and the diameter of the through hole 24 is equal to that of the telescopic rod 341.

Specifically, the pressure release pipe 11, the sealing head 21 and the telescopic link 341 of copper alloy material not only can strengthen self intensity, can also avoid the corrosion simultaneously in the rainy day, consequently can prolong the life of above-mentioned structure, and the diameter of through-hole 24 and telescopic link 341 equals not only can make the telescopic link 341 peg graft smoothly inside through-hole 24, can also seal up through-hole 24 simultaneously.

The working principle is as follows: when in use, the utility model firstly connects the first spiral ring 12 in the inner part of the valve core of the automobile tire by screw thread, at this time, the sealing ring 13 is completely inserted in the inner part of the valve core to achieve the purpose of primary connection and sealing, then connects the second spiral ring 22 in the screw thread groove 132 to achieve the purpose of secondary connection and sealing, after the installation is completed, when the air pressure of the automobile tire is too sufficient to reach the degree that the internal pressure has the compression spring, the air pressure in the tire passes through the sealing ring 13 to enter the inner part of the pressure relief pipe 11, and the pressure jacks up the lantern ring 32 at the lower end of the reset spring 31, at this time, the lantern ring 32 at the upper end contacts with the limit ring 14 at the upper end to play the limiting role, the reset spring 31 contracts and enables the expansion rod 341 to extend and be inserted in the through hole 24, at this time, the third pressure relief hole 342 at the upper end of the expansion rod 341 coincides with the second pressure relief hole 23 on the side surface of the sealing head 21, the air in the tire enters the third pressure relief hole 342 at the lower end of the expansion link 341 through the pressure relief pipe 11 under the action of air pressure and flows out through the expansion link 341 made of hollow material and the third pressure relief hole 342 and the second pressure relief hole 23 at the upper end of the expansion link 341, so as to achieve the purpose of automatic pressure relief, when the air pressure in the tire is weakened insufficiently to jack up the return spring 31, the return spring 31 drives the expansion link 341 to fall into the pressure relief pipe 11, the sealing ring 13 and the through hole 24 are respectively blocked at two sides of the expansion link 341, when manual pressure relief is needed, the upper end of the expansion link 341 is pressed by fingers, the return spring 31 contracts under the action of the finger pressure, the lantern ring 32 at the lower end of the return spring 31 and the limiting ring 14 are contacted and limited at the moment, the lower end of the expansion link 341 is inserted into the sealing ring 13 and continuously extends into the sealing ring 13, and then the third pressure relief hole 342 at the lower end of the expansion link 341 coincides with the first pressure relief hole 131 on the side surface of the sealing ring 13, the gas in the tire passes through the sealing ring 13 and the third pressure relief hole 342 and the first pressure relief hole 131 at the lower end under the action of air pressure, and then flows out through the telescopic rod 341 made of hollow material and the third pressure relief hole 342 and the through hole 24 at the upper end of the telescopic rod to complete the purpose of manual pressure relief, and the sealing of the automatic pressure relief valve and the automatic and manual pressure relief work can be completed through the above operations.

Claims

1. The utility model provides an automatic relief valve for automobile tire, includes valve body subassembly (1), its characterized in that: the upper end of the valve body assembly (1) is detachably connected with a sealing assembly (2), and a pressure relief assembly (3) is movably arranged in the valve body assembly (1);

the valve body assembly (1) comprises a pressure relief pipe (11), a first spiral ring (12) is fixedly connected to the lower end of the pressure relief pipe (11), a sealing ring (13) is fixedly connected to the lower end of the first spiral ring (12), and limiting rings (14) are fixedly mounted at two ends of the interior of the pressure relief pipe (11).

2. The automatic pressure relief valve for automobile tires according to claim 1, characterized in that: a first pressure relief hole (131) is formed in the side surface of the sealing ring (13), and a thread groove (132) is formed in the upper end of the pressure relief pipe (11).

3. The automatic pressure relief valve for automobile tires according to claim 1, characterized in that: seal assembly (2) is including sealed head (21), the lower extreme fixedly connected with second spiro (22) of sealed head (21), second pressure release hole (23) have been seted up to the side surface of sealed head (21), through-hole (24) have been seted up to the inside of sealed head (21), the inside of second spiro (22) threaded connection at thread groove (132).

4. The automatic pressure relief valve for automobile tires according to claim 3, characterized in that: pressure release subassembly (3) include reset spring (31), the equal fixedly connected with lantern ring (32) in both ends of reset spring (31), the fixed surface of lantern ring (32) is connected with sleeve pipe (33), the equal activity of the inside of sleeve pipe (33) and reset spring (31) is pegged graft and is had flexible subassembly (34).

5. The automatic pressure relief valve for automobile tires according to claim 4, characterized in that: the telescopic component (34) comprises a telescopic rod (341) inserted in the sleeve (33), third pressure relief holes (342) are formed in two ends of the telescopic rod (341), and the telescopic rod (341) is made of a hollow material.

6. The automatic pressure relief valve for automobile tires according to claim 5, characterized in that: the pressure relief pipe (11), the sealing head (21) and the telescopic rod (341) are all made of copper alloy materials, and the diameter of the through hole (24) is equal to that of the telescopic rod (341).