CN219795376U - Pressure release and drainage structure of kettle cover - Google Patents

Abstract

The utility model discloses a pressure release and drainage structure of a kettle cover, which belongs to the technical field of automobile accessories, and comprises an expansion kettle formed by combining an upper kettle body and a lower kettle body, wherein the upper kettle body is provided with the kettle cover, and is characterized in that: the kettle cover comprises a pressure outer cover and a pressure relief valve, the pressure relief valve is in threaded connection with the inner wall of the kettle cover, the pressure relief valve is internally provided with a lower valve crown, the lower valve crown is sleeved with an upper valve crown, the upper valve crown is blocked by a valve baffle, the upper valve crown is sleeved with a positive pressure spring and a negative pressure spring, the pressure relief valve is internally provided with a gap, a gas outlet and a gas inlet, the gap is the same as the gas outlet and blocked by the upper valve crown, the gas inlet is communicated with the bottom of the lower valve crown, and the technical problem of residual liquid at the kettle mouth is solved.

Description

Pressure release and drainage structure of kettle cover

Technical Field

The utility model belongs to the technical field of automobile accessories, and particularly relates to a pressure relief and drainage structure of a kettle cover.

Background

The expansion kettle is commonly called as a kettle, is a component part in a vehicle cooling system, when an engine runs, cooling liquid can continuously circulate in a cooling water channel and can flow through the expansion kettle in the middle, if the pressure is too high or the cooling liquid is excessive, redundant gas and the cooling liquid can flow out of a bypass water channel of the expansion kettle, so that the severe consequences of a sudden tube caused by the too high pressure of the cooling system are avoided;

in order to adapt to the pressure release structure requirement of the kettle, the conventional kettle cover only has the pressure release effect, and has the following two problems: 1. when the kettle cover is depressurized, high temperature or steam can be generated, so that liquid residues exist on the periphery of the kettle opening to affect the appearance; 2 when the kettle cover is depressurized, high temperature is generated or the risk of hand injury is caused when the kettle cover is folded, and based on the risk, I study the problem and develop a pressure release and drainage structure of the kettle cover to replace the prior art.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a pressure release and drainage structure of a kettle cover so as to solve the technical problem of liquid residue at a kettle opening.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a kettle lid pressure release drainage structure, includes the expansion kettle that forms by last kettle body and lower kettle body combination, goes up the kettle body and installs kettle lid, its characterized in that:

the kettle cover comprises a pressure outer cover and a pressure relief valve, and the pressure relief valve is in threaded connection with the inner wall of the kettle cover;

the pressure release valve is internally provided with a lower valve crown, an upper valve crown is sleeved on the lower valve crown, the upper valve crown is blocked by a valve baffle plate, and a positive pressure spring and a negative pressure spring are sleeved on the upper valve crown;

the pressure release valve is internally provided with a gap, a gas outlet and a gas inlet;

the gap is the same as the gas outlet and is blocked by the upper valve crown;

the gas inlet is communicated with the bottom of the lower valve top.

Further: and a first sealing ring is arranged at the joint of the pressure release valve and the inner wall of the kettle cover.

Further: and a dust cover is additionally arranged between the pressure release valve and the inner bottom of the kettle cover.

Further: the pressure release valve is in threaded connection with the upper kettle body, and a second sealing ring is arranged at the joint.

Compared with the prior art, the utility model has the following advantages: the position where leakage is possible is sealed by arranging the first sealing ring and the second sealing ring, and meanwhile, a double-layer sealing structure is utilized, when the internal pressure of the kettle is increased, the lower valve is jacked, so that the gas leaking from the upper valve jacked and leaking out enters the kettle body again through the gap and the gas outlet, and the liquid residue at the kettle mouth is avoided.

Drawings

FIG. 1 is a front view of an expansion kettle according to the present utility model;

fig. 2 is a cross-sectional view of the kettle lid of the present utility model.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In a first embodiment of the present utility model, as shown in fig. 1 to 2, a pressure and drainage structure of a kettle cover, comprising an expansion kettle 3 formed by combining an upper kettle body 1 and a lower kettle body 2, wherein the upper kettle body 1 is provided with a kettle cover 4, and is characterized in that:

the kettle cover 4 comprises a pressure outer cover 5 and a pressure relief valve 6, and the pressure relief valve 6 is in threaded connection with the inner wall of the kettle cover 4;

the pressure release valve 6 is internally provided with a lower valve crown 7, an upper valve crown 8 is sleeved on the lower valve crown 7, the upper valve crown 8 is blocked by a valve baffle 9, and a positive pressure spring 10 and a negative pressure spring 11 are sleeved on the upper valve crown 8;

the pressure relief valve 6 is also provided with a gap 12, a gas outlet 13 and a gas inlet 14;

the gap 12 is identical to the gas outlet 13 and is blocked by the upper valve head 8;

the gas inlet 14 is communicated with the bottom of the lower valve top 7;

a first sealing ring 15 is arranged at the joint of the pressure release valve 6 and the inner wall of the kettle cover 4;

a dust cover 16 is additionally arranged between the pressure release valve 6 and the inner bottom of the kettle cover 4;

the pressure release valve 6 is in threaded connection with the upper kettle body 1, and a second sealing ring 17 is arranged at the joint.

By adopting the technical scheme: in the running process of the expansion kettle in the cooling system, when the internal pressure of the expansion kettle 3 rises to a standard specified value, the lower valve top 7 is jacked up by gas in the expansion kettle 3, so that the lower valve top 7 is lifted up and then pushes the upper valve top 8 to press the positive pressure spring 10, in the process, the gap 12 leaks out, the gas flows into the kettle body of the expansion kettle 3 again from the gas outlet 13 through the gap 12, and the first sealing ring 15 ensures that the gas cannot flow out from the joint of the pressure relief valve 6 and the pressure outer cover 5.

The foregoing is merely a preferred embodiment of the utility model, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the utility model, which modifications would also be considered to be within the scope of the utility model.

Claims (4)

1. The utility model provides a kettle lid pressure release drainage structure, includes by last kettle body (1) and the expansion kettle (3) that lower kettle body (2) combination formed, installs kettle lid (4), its characterized in that on last kettle body (1):

the kettle cover (4) comprises a pressure outer cover (5) and a pressure release valve (6), and the pressure release valve (6) is in threaded connection with the inner wall of the kettle cover (4);

the pressure release valve (6), the pressure release valve (6) is internally provided with a lower valve jack (7), an upper valve jack (8) is sleeved on the lower valve jack (7), the upper valve jack (8) is blocked by a valve baffle (9), and a positive pressure spring (10) and a negative pressure spring (11) are sleeved on the upper valve jack (8);

a gap (12), a gas outlet (13) and a gas inlet (14) are also arranged in the pressure release valve (6);

the gap (12) is identical to the gas outlet (13) and is blocked by the upper valve head (8);

the gas inlet (14) is communicated with the bottom of the lower valve top (7).

2. The kettle cover pressure relief and drainage structure according to claim 1, wherein: the first sealing ring (15) is arranged at the joint of the pressure release valve (6) and the inner wall of the kettle cover (4).

3. The kettle cover pressure relief and drainage structure according to claim 1, wherein: a dust cover (16) is additionally arranged between the pressure release valve (6) and the inner bottom of the kettle cover (4).

4. The kettle cover pressure relief and drainage structure according to claim 1, wherein: the pressure release valve (6) is in threaded connection with the upper kettle body (1) and a second sealing ring (17) is arranged at the joint.