CN215673653U

CN215673653U - Pressure core connection structure for vehicle

Info

Publication number: CN215673653U
Application number: CN202121464982.1U
Authority: CN
Inventors: 朱庆凯
Original assignee: SHANDONG TONGYA MOLDING TECHNOLOGY CO LTD
Current assignee: SHANDONG TONGYA MOLDING TECHNOLOGY CO LTD
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-28
Anticipated expiration: 2031-06-29

Abstract

The application discloses pressure core connection structure for vehicle belongs to vehicle cooling technical field. The method comprises the following steps: the bottom of the pressure valve shell extends towards the periphery to form a pressure valve seat, and the peripheral side wall of the pressure valve seat is provided with a first external thread; the lid, the pressure valve casing is established in the installation cavity of lid, and the lower part of installation cavity is equipped with the spacing portion of pressure disk seat, and the inner wall of installation cavity is equipped with the internal thread that cooperatees and use with first external screw thread, and the internal thread extends to the port department of installation cavity from the spacing portion of pressure disk seat. The pressure valve shell is connected with the inner thread of the mounting cavity of the cover body through the first outer thread of the pressure valve seat, and the cover body of the pressure core connecting structure for the vehicle is integrally formed, so that the processing technology of secondary milling of the cover body in the prior art is omitted, the damage of scraps to an engine is avoided, the production efficiency of the water tank pressure cover is improved, and the production cost is reduced.

Description

Pressure core connection structure for vehicle

Technical Field

The application relates to a pressure core connection structure for a vehicle, and belongs to the technical field of vehicle cooling.

Background

The water tank for the vehicle is an important component of a vehicle cooling system, plays an important role in heat dissipation of a vehicle engine, can be used for storing and supplementing cooling liquid, and prevents the pressure of the cooling system from rising and the cooling liquid from being sprayed out from a gap or crushing parts of the cooling system when the water temperature of the cooling system rises. The pressure core connecting structure for the vehicle is a key part of the water tank and has the function of ensuring that the cooling liquid in the system can keep certain pressure, so that the heat dissipation capacity of the system is improved.

The internal thread in the installation cavity of the cover body of the existing pressure core connection structure for the vehicle is only used for connecting a water tank body water outlet, after the water tank pressure cover is integrally molded by injection, secondary milling is needed to be carried out at the bottom of the internal thread, an annular groove is formed at the bottom of the internal thread, a pressure valve seat of the pressure valve shell is fixed in the pressure valve seat through an annular sealing washer, but the pressure core connection structure for the vehicle easily generates material scraps in the process of carrying out secondary milling, if the pressure core connection structure is not cleaned up, the material scraps easily enter an engine along with cooling liquid in the using process, and bad influence is caused on the engine.

Therefore, a pressure core connection structure for a vehicle is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the application provides a pressure core connecting structure and a water tank for a vehicle, so that the technical problem that the manufacturing process of the pressure core connecting structure for the vehicle is complex in the prior art, and the material scraps generated by secondary processing cause adverse effects on an engine is solved.

According to an aspect of the present application, there is provided a pressure core connection structure for a vehicle, including:

the bottom of the pressure valve shell extends towards the periphery to form a pressure valve seat, and the peripheral side wall of the pressure valve seat is provided with a first external thread;

the lid, the pressure valve is established in the installation cavity of lid, the lower part of installation cavity is equipped with the spacing portion of pressure valve seat, the inner wall of installation cavity be equipped with the internal thread that first external screw thread cooperatees and uses, the internal thread certainly spacing portion of pressure valve seat to the port department of installation cavity extends.

Optionally, the first external thread includes a first root, an external male surface, an external female surface, and a first connection surface connecting the external male surface and the external female surface, the first root is parallel to the first connection surface, the external male surface and the root form a first included angle, the first included angle ranges from 30 ° to 60 °, the external female surface and the root form a second included angle, and the second included angle ranges from (-30 °) (-60 °);

the internal thread comprises a second root part, an inner male surface and an inner female surface, a third included angle is formed between the second root part and the inner male surface, the value range of the third included angle is 120-150 degrees, a fourth included angle is formed between the second root part and the inner female surface, and the value range of the fourth included angle is (-120 degrees- (-150 degrees).

Optionally, the first included angle ranges from 45 degrees to 60 degrees;

the value range of the second included angle is (-45 degrees) - (-60 degrees);

the value range of the third included angle is 120-135 degrees;

the value range of the fourth included angle is (-120 degrees) - (-135 degrees).

Alternatively,

the value of the first included angle is not less than that of the second included angle.

Optionally, the peripheral side wall of the pressure valve seat is provided with at least one external thread ring.

Optionally, the limiting part is of a circular ring structure, and the radial size of an inner circle surrounded by the limiting part is smaller than that of the pressure valve seat.

Optionally, an annular sealing gasket is arranged between the limiting part and the pressure valve seat.

According to another aspect of the present application, there is provided a water tank including the pressure core connection structure for a vehicle as set forth in any one of the above.

Optionally, including the water tank body, the periphery of water tank body delivery port is equipped with the second external screw thread, the second external screw thread with the internal thread can cooperate the use.

Benefits that can be produced by the present application include, but are not limited to:

1. the application provides a pressure core connection structure for vehicle, its pressure valve casing passes through the first external screw thread of pressure disk seat and links to each other with the internal thread of the installation cavity of lid, and the lid integrated into one piece of pressure lid has saved the processing technology that lid secondary milled among the prior art, has avoided the production of bits material to the harm that the engine produced, has improved the production efficiency of water tank pressure lid, has reduced manufacturing cost.

2. According to the pressure core connecting structure for the vehicle, the first external thread and the internal thread are arranged, so that the connection between the pressure valve seat and the mounting cavity of the cover body is safer and more reliable; the annular sealing gasket arranged between the limiting part and the pressure valve seat can make up the gap error between the limiting part and the pressure valve seat and improve the sealing performance between the limiting part and the pressure valve seat.

3. The water tank that this application provided, the second external screw thread of water tank body delivery port and the first external screw thread of pressure disk seat can cooperate the use simultaneously with the internal thread of the installation cavity of lid for the simple structure of water tank.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic cross-sectional view of a pressure core connection structure for a vehicle according to an embodiment of the present application;

FIG. 2 is a schematic view of a connecting structure of a pressure core for a vehicle according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a pressure valve housing according to an embodiment of the present application;

FIG. 4 is an enlarged view of A in FIG. 3;

FIG. 5 is an enlarged view of B in FIG. 2;

list of parts and reference numerals:

1. a cover body 11, an installation cavity 12, an internal thread 13 and a limiting part,

2. a pressure valve housing, 21, a pressure valve seat, 22, a first external thread,

31. a first root, 32, an external male surface, 33, an external female surface, 34, a first connection surface, 35, a first angle, 36, a second angle,

41. a second root, 42, a medial aspect, 43, a medial aspect, 44, a third angle, 45, and a fourth angle.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

An embodiment of the present application discloses a pressure core connection structure for a vehicle, as shown in fig. 1 to 3, including: the pressure valve comprises a cover body 1 and a pressure valve shell 2 arranged in an installation cavity 11 of the cover body 1, wherein the bottom of the pressure valve shell 2 extends towards the periphery to form a pressure valve seat 21, and the peripheral side wall of the pressure valve seat 21 is provided with a first external thread 22; the lower part of installation cavity 11 is equipped with the spacing portion 13 of pressure valve seat, and the inner wall of installation cavity 11 is equipped with the internal thread 12 that cooperatees and use with first external screw thread 22, and internal thread 12 extends to the port department of installation cavity 11 from the spacing portion 13 of pressure valve seat. The pressure valve shell 2 is connected with the inner thread 12 of the mounting cavity 11 of the cover body 1 through the first outer thread 22 of the pressure valve seat 21, and the cover body 1 of the pressure valve is integrally formed, so that the processing technology of secondary milling of the cover body in the prior art is omitted, the damage of scraps to an engine is avoided, the production efficiency of the water tank pressure valve is improved, and the production cost is reduced.

Preferably, as shown in fig. 4, the first external thread 22 includes a first root portion 31, an external male surface 32, a female surface 33, and a first connection surface 34 connecting the external male surface 31 and the female surface 32, the first root portion 31 is disposed parallel to the first connection surface 34, the external male surface 32 forms a first included angle 35 with the first root portion 31, the first included angle 35 ranges from 30 ° to 60 °, the external female surface 33 forms a second included angle 36 with the first root portion 31, and the second included angle 36 ranges from (-30 °) (-60 °); as shown in fig. 5, the internal thread 12 includes a second root portion 41, an internal male surface 42 and an internal female surface 43, a third included angle 44 is formed between the second root portion 41 and the internal male surface 42, the third included angle 44 is 120 ° -150 °, a fourth included angle 45 is formed between the second root portion 41 and the internal female surface 43, and the fourth included angle 45 is (-120 °) (-150 °). From another aspect, when the water tank is used, the heat dissipation temperature is high, the pressure valve housing 2 is subjected to large pressure, so that a large acting force is generated between the first external thread 22 and the internal thread 12, the cross section of the first external thread 22 is trapezoidal, the cross section of the internal thread 12 is a trapezoidal groove, when the values of the first included angle 35 and the second included angle 36 of the first external thread 22 are small, and the values of the third included angle 44 and the fourth included angle 45 are large, the height of the trapezoidal section is relatively small, the depth of the trapezoidal groove is shallow, the first external thread 22 and the internal thread 12 are relatively easy to slide, and the structure is relatively unstable; when the values of the first included angle 35 and the second included angle 36 of the first external thread 22 are large, and the values of the third included angle 44 and the fourth included angle 45 are small, the height of the trapezoidal section is relatively large, the depth of the trapezoidal groove is large, and the pressure bearing capacity of the first external thread and the internal thread is relatively small.

More preferably, the first included angle 34 is in the range of 45 ° -60 °; the value range of the second included angle 36 is (-45 degrees) - (-60 degrees); the third included angle 44 ranges from 120 degrees to 135 degrees; the fourth included angle 45 is in the range of (-120 deg. (-135 deg.).

In one embodiment, the value of the first included angle 35 is not less than the value of the second included angle 36. When the water tank is used, the heat dissipation temperature is higher, the pressure valve is pushed against the cover body under the action of high-temperature cooling hydraulic pressure, the acting force between the outer convex surface 33 of the first external thread 22 and the inner convex surface 42 of the internal thread 12 is greater than the acting force between the outer convex surface 32 of the first external thread 22 and the inner convex surface 42 of the internal thread 12, the value of the first included angle 35 is not less than the value of the second included angle 36, and the pressure bearing capacity of the outer concave surface 33 of the first external thread 22 can be improved.

Preferably, the peripheral side wall of the pressure valve seat 21 is provided with at least one externally threaded turn. When the peripheral side wall of the pressure valve seat 21 is smaller than an external thread ring, when the water tank is used, the pressure valve seat 21 is unevenly stressed and is easy to shake, and the structure is relatively unstable. On the contrary, the arrangement of one external thread ring or more external thread rings has relatively uniform stress and more stable structure.

In an embodiment, the limiting portion 13 is a circular ring structure, a radial dimension of an inner circle surrounded by the limiting portion 13 is smaller than a radial dimension of the pressure valve seat 21, and an annular sealing gasket is disposed between the limiting portion 1113 and the pressure valve seat 21. So as to compensate for the gap error between the limiting part 13 and the pressure valve seat 21 and improve the sealing performance between the two.

According to another embodiment of the present application, there is provided a water tank including the pressure core connection structure for a vehicle as described in any one of the above, wherein the second external thread of the water outlet of the water tank body and the first external thread 22 of the pressure valve seat 21 can be used in cooperation with the internal thread 12 of the mounting cavity 11 of the cover body at the same time, so that the structure of the water tank is simplified.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A pressure core connection structure for a vehicle, characterized by comprising:

2. The pressure core connection structure for a vehicle according to claim 1, wherein the first external thread includes a first root portion, an external male surface, an external female surface, and a first connection surface connecting the external male surface and the external female surface, the first root portion is arranged in parallel with the first connection surface, the external male surface forms a first included angle with the root portion, the first included angle has a value ranging from 30 ° to 60 °, the external female surface forms a second included angle with the root portion, and the second included angle has a value ranging from (-30 °) (-60 °);

3. The vehicular pressure core connection structure according to claim 2, wherein the first angle is in a range of 45 ° -60 °;

the value range of the second included angle is (-45 degrees) - (-60 degrees);

the value range of the third included angle is 120-135 degrees;

4. The vehicular pressure core connection structure according to claim 2, wherein a value of the first angle is not smaller than a value of the second angle.

5. The vehicular pressure core connection structure according to claim 1, wherein the outer peripheral side wall of the pressure valve seat is provided with at least one externally threaded turn.

6. The vehicular pressure core connecting structure according to claim 1, wherein the stopper portion is of a circular ring structure, and a radial dimension of an inner circle surrounded by the stopper portion is smaller than a radial dimension of the pressure valve seat.

7. The vehicular pressure core connection structure according to claim 6, wherein an annular seal gasket is provided between the stopper portion and the pressure valve seat.

8. A water tank characterized by comprising the vehicular pressure core attachment structure according to any one of claims 1 to 7.

9. The water tank as claimed in claim 8, comprising a water tank body, wherein the periphery of the water outlet of the water tank body is provided with a second external thread, and the second external thread and the internal thread can be matched for use.