Stainless steel electromagnetic refrigeration valve

Abstract

The utility model relates to the technical field of refrigeration valves, and discloses a stainless steel electromagnetic refrigeration valve which comprises a valve body, a valve core is arranged in the valve body, the valve core comprises a valve seat, a valve ball, a sliding core seat and an end socket which are made of stainless steel and are sequentially arranged, the end socket and the valve seat are respectively and fixedly arranged inside two ends of the valve body, and the valve ball is arranged between the valve seat and the sliding core seat. A pressure spring is arranged between the sliding core seat and the sealing head; a lateral through hole is formed in the end, close to the valve seat, of the valve body and fixedly connected with an air inlet pipe. The valve seat is fixedly connected with an air outlet pipe. By optimizing the structure of the valve seat and arranging the valve seat in the valve body, the size of the valve seat can be effectively reduced, consumables are reduced, and therefore the production cost is reduced; the valve body and the valve element are made of stainless steel, the compressive strength and stability of the valve can be effectively improved, and the application range of the valve is widened.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration valve technology, and in particular to a stainless steel electromagnetic refrigeration valve. Background Technology

[0002] Authorization Announcement No.: CN202421320702.3 discloses an improved refrigeration valve, including a valve body. One end of the valve body is fixed with a cap, and the other end of the valve body is inserted into and fixed to a valve seat. An inlet pipe and an outlet pipe are connected to the valve seat. A valve core is sleeved inside the valve body. A radially penetrating vent groove is formed on the end face of the cap facing the valve core. An annular countersunk hole is formed on the end face of the cap facing the valve core, and the vent groove penetrates the outer end of the annular countersunk hole. Existing refrigeration valves generally use copper as the valve seat material. The valve seat is inserted into the outer end of the valve body, resulting in a large valve seat volume, increased material consumption, and higher costs. Furthermore, copper is soft and has low pressure resistance, making the refrigeration valve unsuitable for high-pressure environments. Utility Model Content

[0003] The purpose of this invention is to provide a stainless steel electromagnetic refrigeration valve. By optimizing the valve seat structure and placing the valve seat inside the valve body, the valve seat volume can be effectively reduced, material consumption can be reduced, and production costs can be lowered.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A stainless steel electromagnetic refrigeration valve includes a valve body, a valve core inside the valve body, and a valve core including a stainless steel valve seat, a valve ball, a sliding core seat and a head arranged in sequence. The head and the valve seat are respectively fixed inside the two ends of the valve body, the valve ball is placed between the valve seat and the sliding core seat, and a compression spring is provided between the sliding core seat and the head.

[0006] The valve body has a lateral through hole formed at one end near the valve seat, and an air inlet pipe is fixedly connected to the lateral through hole;

[0007] The valve seat is fixedly connected to the outlet pipe. By using stainless steel for both the valve body and valve core, the overall pressure resistance and stability of the valve are effectively improved. Furthermore, using stainless steel for both the valve body and valve core simplifies welding. The structure where the valve seat is fixed inside the valve body replaces the existing structure where the valve seat is inserted outside the valve body, effectively reducing the size of the valve seat and thus saving materials and lowering the production cost of the refrigeration valve.

[0008] The present invention is further configured such that: the end of the air intake pipe near the valve body is formed with a positioning protrusion, which can control the depth of the air intake pipe inserted into the valve body to avoid interference when installing the valve core later; at the same time, the positioning protrusion increases the weldable area with the valve body, which can facilitate the welding work between the air intake pipe and the valve body.

[0009] The present invention is further configured such that: the valve seat is in the shape of a three-step column, the small end of the valve seat is used to support the valve ball, the middle section of the valve seat is clamped between the valve body and the valve body, and the large end of the valve seat is interference-fitted with the valve body;

[0010] The valve seat has a vent hole formed inside. One end of the vent hole abuts against the valve ball, and the other end of the vent hole is fixedly connected to the air outlet pipe.

[0011] The present invention is further configured such that the outer end face of the valve seat is lower than the end face of the valve body, which facilitates the welding work between the outer end face of the valve seat and the inner wall of the valve body, thereby further improving the bonding ability and enabling it to withstand greater pressure loads.

[0012] The present invention is further configured such that the middle end face of the valve seat presses against the outer wall of the air intake pipe. The obstruction effect of the air intake pipe can limit the depth of the valve seat into the valve body, thereby further controlling the distance between the sliding core seat and the valve seat and improving the sliding core seat.

[0013] This invention is further configured such that: a valve ball retaining seat is formed at the end of the sliding core seat near the valve seat. The valve ball retaining seat includes a countersunk hole and a retaining part disposed on the end face of the countersunk hole. The retaining part covers the outside of the valve ball, and the end of the retaining part away from the countersunk hole protrudes above the center of the valve ball. The retaining part is formed by first inserting the valve ball into the countersunk hole, and then pressing the outer wall of the retaining part to deform the retaining part and cover the outer wall of the valve ball. The valve ball can move axially along the countersunk hole within the valve ball retaining seat. The valve ball retaining seat ensures that the valve ball always remains on the sliding core seat, and the valve ball will not escape to other places during valve opening and closing.

[0014] The outstanding effect of this utility model is:

[0015] Compared with existing technologies, by optimizing the valve seat structure and placing the valve seat inside the valve body, the valve seat volume can be effectively reduced, material consumption can be reduced, and thus production costs can be reduced.

[0016] By using stainless steel for both the valve body and valve core, the valve's pressure resistance and stability can be effectively increased, thus expanding its application range.

[0017] The valve seat outer end face is set lower than the valve body end face and the air inlet pipe is provided with a protrusion to facilitate welding work.

[0018] By setting a positioning protrusion on the intake pipe and pressing the middle end of the valve seat against the intake pipe, the installation position of the intake pipe and valve seat can be guaranteed, thus improving the accuracy of the entire refrigeration valve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 for Figure 1 A magnified view of a portion of A.

[0021] Reference numerals: 1. Valve body;

[0022] 2. Valve core; 21. Valve seat; 22. Valve ball; 23. Sliding core seat; 24. End cap; 26. Compression spring; 211. Vent hole; 231. Countersunk hole; 232. Retaining part;

[0023] 3. Intake pipe; 311. Positioning protrusion;

[0024] 4. Air outlet pipe. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] The following is for reference Figures 1 to 2 The embodiments of this utility model are described below:

[0027] A stainless steel electromagnetic refrigeration valve includes a valve body 1, a valve core 2 inside the valve body 1, and a valve core 2 including a stainless steel valve seat 21, a valve ball 22, a sliding core seat 23 and a head 24 arranged sequentially. The head 24 and the valve seat 21 are respectively fixed inside the two ends of the valve body 1. The valve ball 22 is placed between the valve seat 21 and the sliding core seat 23. A compression spring 26 is provided between the sliding core seat 23 and the head 24.

[0028] A lateral through hole 11 is formed at one end of the valve body 1 near the valve seat 21, and an air inlet pipe 3 is fixedly connected to the lateral through hole 11.

[0029] The valve seat 21 is fixedly connected to the outlet pipe 4. The use of stainless steel for both the valve body and valve core effectively improves the overall pressure resistance and stability of the valve. Furthermore, the use of stainless steel for both the valve body and valve core facilitates welding. Additionally, the structure where the valve seat is fixed inside the valve body replaces the existing structure where the valve seat is inserted outside the valve body, effectively reducing the size of the valve seat and thus saving materials and lowering the production cost of the refrigeration valve.

[0030] Preferably, the end of the intake pipe 3 near the valve body 1 is formed with a positioning protrusion 311. The positioning protrusion can control the depth of the intake pipe inserted into the valve body to avoid interference when installing the valve core later. At the same time, the positioning protrusion increases the weldable area with the valve body, which can facilitate the welding work between the intake pipe and the valve body.

[0031] Preferably, the valve seat 21 is in the shape of a three-step column. The small end of the valve seat 21 is used to support the valve ball 22. The middle section of the valve seat 21 is sandwiched between the valve body 1 and the sealing ring 27. The large end of the valve seat 21 is configured with an interference fit with the valve body 1.

[0032] The valve seat 21 has a vent hole 211 formed inside. One end of the vent hole 211 abuts against the valve ball 22, and the other end of the vent hole 211 is fixedly connected to the air outlet pipe 4.

[0033] Preferably, the outer end face of the valve seat 21 is lower than the end face of the valve body 1, which facilitates the welding work between the outer end face of the valve seat and the inner wall of the valve body, thereby further improving the bonding ability and enabling it to withstand greater pressure loads.

[0034] Preferably, the middle end face of the valve seat 21 is pressed against the outer wall of the air intake pipe 3. The obstruction effect of the air intake pipe can limit the depth of the valve seat 21 into the valve body, thereby further controlling the distance between the sliding core seat and the valve seat and improving the sliding core seat.

[0035] Preferably, the end of the sliding core seat 23 near the valve seat 21 is formed with a valve ball retainer. The valve ball retainer includes a countersunk hole 231 and a retaining portion 232 disposed on the end face of the countersunk hole 231. The retaining portion 232 covers the outside of the valve ball 22, and the end of the retaining portion 232 away from the countersunk hole 231 protrudes above the center of the valve ball 22. The retaining portion is formed by first inserting the valve ball into the countersunk hole, and then pressing the outer wall of the retaining portion to deform the retaining portion and cover the outer wall of the valve ball. The valve ball can move axially along the countersunk hole within the valve ball retainer. The valve ball retainer ensures that the valve ball is always on the sliding core seat and will not escape to other places during valve opening and closing.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A stainless steel electromagnetic refrigeration valve, comprising a valve body (1) and a valve core (2) disposed within the valve body (1), characterized in that: The valve core (2) includes a stainless steel valve seat (21), a valve ball (22), a sliding core seat (23) and a head (24) arranged in sequence. The head (24) and the valve seat (21) are respectively fixed inside the two ends of the valve body (1). The valve ball (22) is placed between the valve seat (21) and the sliding core seat (23). A compression spring (26) is provided between the sliding core seat (23) and the head (24). The valve body (1) has a lateral through hole (11) formed at one end near the valve seat (21), and an air inlet pipe (3) is fixedly connected to the lateral through hole (11). The valve seat (21) is fixedly connected to the air outlet pipe (4).

2. The stainless steel electromagnetic refrigeration valve according to claim 1, characterized in that: The end of the intake pipe (3) near the valve body (1) is formed with a positioning protrusion (311).

3. The stainless steel electromagnetic refrigeration valve according to claim 1, characterized in that: The valve seat (21) is in the shape of a three-step column. The small end of the valve seat (21) is used to support the valve ball (22). The middle section of the valve seat (21) and the valve body (1) are clamped together with a sealing ring (27). The large end of the valve seat (21) and the valve body (1) are provided with an interference fit. The valve seat (21) has a vent hole (211) inside. One end of the vent hole (211) abuts against the valve ball (22), and the other end of the vent hole (211) is fixedly connected to the air outlet pipe (4).

4. A stainless steel electromagnetic refrigeration valve according to claim 2, characterized in that: The outer end face of the valve seat (21) is lower than the end face of the valve body (1).

5. A stainless steel electromagnetic refrigeration valve according to claim 1, characterized in that: The middle end face of the valve seat (21) presses against the outer wall of the intake pipe (3).

6. A stainless steel electromagnetic refrigeration valve according to claim 1, characterized in that: The sliding core seat (23) has a valve ball retainer formed at the end near the valve seat (21). The valve ball retainer includes a counterbore (231) and a retaining part (232) disposed on the end face of the counterbore (231). The retaining part (232) covers the outside of the valve ball (22), and the end of the retaining part (232) away from the counterbore (231) is higher than the center of the valve ball (22).

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