CN218407597U

CN218407597U - Pressure cover assembly

Info

Publication number: CN218407597U
Application number: CN202222978820.0U
Authority: CN
Inventors: 曾祥龙; 李洋
Original assignee: Wuhan Leibo Automobile Electric Appliance Co ltd
Current assignee: Wuhan Leibo Automobile Electric Appliance Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-01-31
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a pressure cap technical field's a pressure cap assembly, include: the valve core assembly comprises a valve core and an air inlet which is annularly formed at the edge of the bottom of the valve core; the vacuum valve assembly comprises a vacuum valve arranged at the bottom of the inner cavity of the valve core and a sealing gasket seat arranged on the circumferential outer side wall of the vacuum valve; the vacuum valve spring is arranged in the groove at the bottom of the vacuum valve and penetrates through the bottom of the vacuum valve to be in contact with the bottom of the inner cavity of the valve core; the utility model discloses a structure of setting discharge valve and vacuum valve to an organic whole, simplified the structure of pressure lid, reduced the manufacturing cost of pressure lid to reach the purpose that improves enterprise's interests.

Description

Pressure cover assembly

Technical Field

The utility model relates to a pressure lid technical field specifically is a pressure lid assembly.

Background

The expansion tank is used in a closed water circulation system, plays a role in balancing water quantity and pressure, and avoids frequent opening of a safety valve and frequent water replenishing of an automatic water replenishing valve. The expansion tank has the function of containing expansion water and also has the function of a water supplementing tank, the expansion tank is filled with nitrogen, a large volume can be obtained to contain the expansion water quantity, and the high-pressure expansion tank and the low-pressure expansion tank can utilize the pressure per se and supplement water to a pressure stabilizing system in parallel.

Expansion tank is in order to reach sealed and prevent that expansion tank internal pressure from leading to the fact the purpose that expansion tank damaged too big at the during operation, pressure lid is installed to expansion tank's opening part, symmetrical vacuum valve and the discharge valve of installing is covered to the pressure, carry out expansion tank through vacuum valve control air, through the inside pressure of discharge valve control cooling system, current pressure is covered and all is the symmetry and sets up two structures of vacuum valve and discharge valve, the structure that has led to the fact pressure lid is comparatively complicated, the manufacturing degree of difficulty that has led to the fact pressure lid is great, thereby the corresponding manufacturing cost who has led to the fact pressure lid is higher, the enterprise interests have been reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure cover assembly to solve all to be the symmetry on the current pressure cover that proposes in the above-mentioned background art and set up two structures of vacuum valve and discharge valve, the structure that has caused the pressure cover is comparatively complicated, and the manufacturing degree of difficulty that has caused the pressure cover is great, thereby the corresponding manufacturing cost who has caused the pressure cover is higher, has reduced the problem of enterprise's interests.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure cap assembly, comprising:

the valve core assembly comprises a valve core and an air inlet which is annularly formed at the edge of the bottom of the valve core;

the vacuum valve assembly comprises a vacuum valve arranged at the bottom of the inner cavity of the valve core and a sealing gasket seat arranged on the circumferential outer side wall of the vacuum valve;

the vacuum valve spring is arranged in the groove at the bottom of the vacuum valve and penetrates through the bottom of the vacuum valve to be in contact with the bottom of the inner cavity of the valve core;

the exhaust valve spring is coaxially arranged on the circumferential outer side wall of the sealing pad seat;

the top cover assembly comprises a top cover which is arranged in the inner cavity of the valve core, penetrates through the top of the valve core and is connected with one end, far away from the sealing pad seat, of the exhaust valve spring.

Preferably, the side wall of the inner cavity of the valve core is annularly provided with a mounting groove, and the circumferential outer side wall of the valve core is provided with a sealing groove.

Preferably, the vacuum valve assembly further comprises a sealing gasket coaxially arranged on the circumferential outer side wall of the vacuum valve and arranged in a groove at the bottom of the sealing gasket seat.

Preferably, the vacuum valve comprises a cover cap, an upright post coaxially arranged in a groove at the bottom of the cover cap and penetrating through the bottom of the cover cap and arranged on the inner side of the vacuum valve spring, and a pneumatic groove formed at the bottom of the upright post.

Preferably, the top cap subassembly is still including being the annular setting and be in on the top cap circumference lateral wall and the joint be in the inboard card foot of mounting groove and be the annular and set up top cap top edge runs through the exhaust hole of top cap bottom.

Preferably, the sealing device further comprises a sealing ring arranged inside the sealing groove.

Preferably, the valve further comprises an outer cover assembly, wherein the outer cover assembly comprises an outer cover coaxially arranged on the outer side of the valve core and an inner thread groove formed in the side wall of the inner cavity of the outer cover.

Compared with the prior art, the beneficial effects of the utility model are that: the pressure cover assembly has the advantages that the exhaust valve and the vacuum valve are arranged into an integral structure, the structure of the pressure cover is simplified, the production cost of the pressure cover is reduced, and the purpose of improving the benefits of enterprises is achieved.

Drawings

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

FIG. 2 is a schematic structural view of the valve core assembly of the present invention;

FIG. 3 is a schematic view of the valve core, the mounting groove and the sealing groove of the present invention;

FIG. 4 is a schematic view of the structure of the vacuum valve assembly of the present invention;

FIG. 5 is a schematic view of the top cover assembly of the present invention;

fig. 6 is a schematic structural view of the outer cover assembly of the present invention.

In the figure: 100 valve core assembly, 110 valve core, 111 installing groove, 112 sealing groove, 120 air inlet, 200 vacuum valve assembly, 210 vacuum valve, 211 cover, 212 upright post, 213 air pressure groove, 220 sealing gasket, 230 sealing gasket seat, 300 vacuum valve spring, 400 exhaust valve spring, 500 top cover assembly, 510 top cover, 520 clamping foot, 530 exhaust hole, 600 sealing ring, 700 outer cover assembly, 710 outer cover, 720 inner thread groove.

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.

The utility model provides a pressure lid assembly through setting discharge valve and vacuum valve to an organic whole structure, has simplified the structure of pressure lid, has reduced the manufacturing cost of pressure lid to reach the purpose that improves enterprise's interests, please refer to fig. 1, include: the valve core assembly 100, the vacuum valve assembly 200, the vacuum valve spring 300, the exhaust valve spring 400, the top cover assembly 500, the sealing ring 600 and the outer cover assembly 700;

referring to fig. 1-3, the valve core assembly 100 includes a valve core 110 and an air inlet 120 annularly formed at the bottom edge of the valve core 110, the sidewall of an inner cavity of the valve core 110 is annularly provided with a mounting groove 111, the circumferential outer sidewall of the valve core 110 is provided with a sealing groove 112, the vacuum valve assembly 200 further includes a sealing gasket 220 coaxially disposed on the circumferential outer sidewall of the vacuum valve 210 and disposed in a groove at the bottom of a sealing gasket seat 230, the valve core is fixedly mounted inside an opening of an expansion water tank of an automobile cooling system, and air in the expansion water tank enters the inner cavity of the valve core through the air inlet;

referring to fig. 1-4, the vacuum valve assembly 200 includes a vacuum valve 210 disposed at the bottom of the inner cavity of the valve core 110 and a gasket seat 230 disposed on the circumferential outer sidewall of the vacuum valve 210, the vacuum valve 210 includes a cover 211, a pillar 212 coaxially disposed in a groove at the bottom of the cover 211 and penetrating the bottom of the cover 211 and disposed inside the vacuum valve spring 300, and a pneumatic groove 213 disposed at the bottom of the pillar 212, the cover is coaxially disposed at the bottom of the inner cavity of the valve core, the gasket is sleeved on the circumferential outer sidewall of the cover, the bottom of the gasket is in contact with a boss at the bottom of the inner cavity of the valve core, the cover is supported by the gasket and the boss at the inner cavity of the valve core, the gasket seat is sleeved on the circumferential outer sidewall of the cover, and the bottom groove of the gasket seat covers the top of the gasket and the circumferential outer sidewall;

referring to fig. 1-4 again, the vacuum valve spring 300 is disposed in the groove at the bottom of the vacuum valve 210 and penetrates the bottom of the vacuum valve 210 to contact the bottom of the inner cavity of the valve core 110, the exhaust valve spring is sleeved on the circumferential outer sidewall of the upright post, the top of the exhaust valve spring contacts the top of the inner cavity of the cover cap, the bottom of the exhaust valve spring contacts the bottom of the inner cavity of the valve core, the cover cap is supported by the exhaust valve spring, and the cover cap is mounted at the bottom of the inner cavity of the valve core;

referring to fig. 1-4 again, the exhaust valve spring 400 is coaxially disposed on the circumferential outer sidewall of the gasket seat 230, the exhaust valve spring is sleeved on the circumferential outer sidewall of the gasket seat, and the bottom of the exhaust valve spring contacts with the top plane of the gasket seat;

referring to fig. 1-5, the top cap assembly 500 includes a top cap 510 disposed in the inner cavity of the valve core 110 and penetrating the top of the valve core 110 and connected to an end of the exhaust valve spring 400 away from the gasket seat 230, a locking pin 520 annularly disposed on the outer circumferential sidewall of the top cap 510 and locked in the mounting groove 111, and an exhaust hole 530 annularly disposed at the top edge of the top cap 510 and penetrating the bottom of the top cap 510, the top cap being embedded in the top of the inner cavity of the valve core, the locking pin being locked in the mounting groove, the valve core being fixed to the inner side of the valve core by the locking pin and the mounting groove, a bottom groove of the top cap contacting the top of the exhaust valve spring, applying a downward pressure to the gasket seat by the exhaust valve spring, applying an upward supporting force to the cover cap by the vacuum valve spring, and fixing the vacuum valve assembly to the inner side of the valve core by the vacuum valve spring and the exhaust valve spring, the pound number of the exhaust valve spring is larger than that of the vacuum valve spring, so that the vacuum valve assembly is fixed on a boss of the inner cavity of the valve core and sealed by the sealing gasket to avoid the leakage of gas in the vertical expansion direction through a gap between the sealing gasket and the boss of the inner cavity of the valve core, thereby playing a role of sealing the expansion water tank, when water in the expansion water tank is heated and expanded, the pressure in the expansion water tank is increased, the gas enters the inner cavity of the valve core through the gas inlet, part of the gas enters the inner cavity of the pressure groove, the cover cap of the pneumatic pusher moves towards the direction of the exhaust valve spring along with the continuous increase of the pressure in the expansion water tank until the pound number of the exhaust valve spring is exceeded, the exhaust valve spring is extruded by the sealing cushion seat, the exhaust valve spring is compressed and contracted, the sealing gasket is far away from the boss of the inner cavity of the valve core through the cover cap, so that a gap is formed between the sealing gasket and the boss of the inner cavity of the valve core, the expansion gas in the expansion water tank enters the upper space of the inner cavity of the valve core through the gap between the sealing gasket and the boss of the inner cavity of the valve core and is discharged through the exhaust hole, so that the pressure in the expansion water tank is reduced, and the damage of the expansion water tank caused by the overlarge pressure in the expansion water tank is avoided;

the sealing structure further comprises a sealing ring 600 arranged on the inner side of the sealing groove 112, the valve core is fixedly arranged on the inner side of the opening of the expansion water tank of the automobile cooling system through the sealing ring, and the sealing ring is used for sealing the space between the valve core and the opening of the expansion water tank to avoid gas leakage;

referring to fig. 1 and 6, the outer cover assembly 700 includes an outer cover 710 coaxially disposed on the outer side of the valve core 110 and an inner threaded groove 720 formed on the inner cavity sidewall of the outer cover 710, the outer cover is fixedly mounted on the circumferential outer sidewall of the opening of the expansion tank of the cooling system of the automobile through the inner threaded groove, the outer cover covers the outer side of the valve core, the valve core is protected by the outer cover, and the service life is prolonged.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A pressure cap assembly, comprising: the method comprises the following steps:

the valve core assembly (100) comprises a valve core (110) and an air inlet (120) which is annularly formed at the edge of the bottom of the valve core (110);

the vacuum valve assembly (200), the vacuum valve assembly (200) includes a vacuum valve (210) arranged at the bottom of the inner cavity of the valve core (110) and a sealing gasket seat (230) arranged on the circumferential outer side wall of the vacuum valve (210);

the vacuum valve spring (300) is arranged in a groove at the bottom of the vacuum valve (210), penetrates through the bottom of the vacuum valve (210) and is in contact with the bottom of the inner cavity of the valve core (110);

the exhaust valve spring (400), the exhaust valve spring (400) is coaxially arranged on the circumferential outer side wall of the sealing gasket seat (230);

the top cover assembly (500) comprises a top cover (510) which is arranged in the inner cavity of the valve core (110), penetrates through the top of the valve core (110) and is connected with one end, far away from the sealing pad seat (230), of the exhaust valve spring (400).

2. A pressure head assembly as claimed in claim 1, wherein: the side wall of the inner cavity of the valve core (110) is annularly provided with a mounting groove (111), and the circumferential outer side wall of the valve core (110) is provided with a sealing groove (112).

3. A pressure head assembly as claimed in claim 2, wherein: the vacuum valve assembly (200) further comprises a sealing gasket (220) coaxially arranged on the circumferential outer side wall of the vacuum valve (210) and arranged in a groove at the bottom of the sealing gasket seat (230).

4. A pressure head assembly as claimed in claim 3, wherein: the vacuum valve (210) comprises a cover cap (211), an upright post (212) coaxially arranged in a groove at the bottom of the cover cap (211) and penetrating through the bottom of the cover cap (211) and arranged on the inner side of the vacuum valve spring (300), and an air pressure groove (213) formed at the bottom of the upright post (212).

5. A pressure head assembly as claimed in claim 4, wherein: top cap subassembly (500) still including being the annular setting and being in on top cap (510) the circumference lateral wall and the joint be in mounting groove (111) inboard card foot (520) and be the annular and set up top cap (510) top edge runs through exhaust hole (530) of top cap (510) bottom.

6. A pressure head assembly as claimed in claim 5, wherein: the sealing ring structure further comprises a sealing ring (600) arranged on the inner side of the sealing groove (112).

7. A pressure head assembly as claimed in claim 6, wherein: the valve core assembly further comprises an outer cover assembly (700), wherein the outer cover assembly (700) comprises an outer cover (710) coaxially arranged on the outer side of the valve core (110) and an inner thread groove (720) formed in the side wall of the inner cavity of the outer cover (710).