Hot forging copper alloy refrigerant electromagnetic valve

Abstract

The utility model discloses a hot-forged copper alloy refrigerant electromagnetic valve which aims at solving the problems that in the prior art, a refrigerant electromagnetic valve in the current market is basically not provided with a detachable filtering structure, impurities in a pipeline are prone to blocking a valve body, and flowing of liquid in the pipeline is affected, and the hot-forged copper alloy refrigerant electromagnetic valve comprises a copper alloy valve body. A refrigerant liquid inlet pipe and a refrigerant liquid outlet pipe are arranged at the two ends of the copper alloy valve body respectively. The refrigerant liquid inlet pipe comprises a detachable filter screen arranged on the end face, a detachable limiting cover ring used for abutting against the filter screen in a limiting mode, a first circular ring step detachably abutting against the filter screen, a second circular ring step used for clamping and fixing the filter screen and a third circular ring step used for being connected with the limiting cover ring. The first circular ring step, the second circular ring step and the third circular ring step are all connected with the refrigerant liquid inlet pipe in an integrated forming mode.

Description

Technical Field

[0001] The utility model relates to the technical field of copper alloy valves, in particular to a hot forged copper alloy refrigerant solenoid valve. Background Art

[0002] Solenoid valves are industrial equipment controlled by electromagnetics and are actuators used to control fluids. Solenoid valves can be used with different circuits to achieve the desired control and can be used to adjust the flow parameters of refrigerants in industrial control systems, such as solenoid valves with on-off functions. When the coil is powered on or off, the operation of the magnetic core can make the fluid pass through the valve body or be cut off to achieve the on-off function. It has a simple structure, reliable operation, and works normally under zero pressure difference and slight vacuum.

[0003] The refrigerant solenoid valve regulates the flow of refrigerant in the refrigeration system by controlling the opening and closing of the valve. When the valve is open, the refrigerant can flow to the corresponding part to achieve the refrigeration effect; when the valve is closed, the flow of the refrigerant is cut off, thereby stopping the refrigeration. The refrigerant solenoid valve can also adjust the refrigerant pressure as needed to ensure the normal operation of the refrigeration system. When the refrigerant pressure is too high, the solenoid valve can guide the refrigerant into the low-pressure area to reduce the pressure; when the refrigerant pressure is too low, the solenoid valve can guide the refrigerant into the high-pressure area to increase the pressure. However, the refrigerant solenoid valves currently on the market basically do not have a detachable filtering structure, and impurities in the pipeline can easily clog the valve body and affect the flow of liquid in the pipeline. Utility Model Content

[0004] The utility model aims to provide a hot forged copper alloy refrigerant solenoid valve to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hot forged copper alloy refrigerant solenoid valve comprises a copper alloy valve body; two ends of the copper alloy valve body are respectively provided with a refrigerant liquid inlet pipe and a refrigerant liquid outlet pipe.

[0007] Among them, the refrigerant inlet pipe includes a detachable filter screen arranged at the end face, a detachable limiting cover ring for limiting and abutting the filter screen, a first circular step detachably abutting the filter screen, a second circular step for clamping and fixing the filter screen, and a third circular step for connecting the limiting cover ring; the first circular step, the second circular step and the third circular step are all integrally formed and connected to the refrigerant inlet pipe.

[0008] Preferably, the filter screen includes a mesh body and a ring body for connecting and fixing the mesh body; the outer ring of the ring body is detachably contacted and connected with the inner ring of the second circular ring step; the annular end face on one side of the ring body is detachably contacted and connected with the annular end face of the first circular ring step.

[0009] Preferably, the second circular step includes an L-shaped slot for clamping the filter; the L-shaped slot includes a first slot and a second slot that are perpendicular to each other, and the first slot and the second slot are connected; correspondingly, a protrusion matching the L-shaped slot is provided on the outer ring of the filter ring body; the connection between the filter and the refrigerant inlet pipe is achieved by clamping the protrusion and the L-shaped slot.

[0010] Preferably, the length of the first card slot is 1 / 2 of the length of the second card slot; the length of the first card slot is consistent with the length of the protrusion.

[0011] Preferably, the depth of the second slot is consistent with the thickness of the protrusion.

[0012] Preferably, the limiting cover ring is made of rubber; the limiting cover ring includes a first pressure ring detachably connected to the annular end face of the second circular ring step and a second pressure ring detachably connected to the annular end face of the third circular ring step; the outer diameter of the second pressure ring is consistent with the outer diameter of the third circular ring step; the first pressure ring and the second pressure ring are both integrally formed.

[0013] Preferably, a limiting protrusion matching the first clamping groove is provided at the outer edge of the first pressure ring; the limiting protrusion is detachably contacted and connected with the annular end face of the first annular step.

[0014] Preferably, the bottom end of the copper alloy valve body is provided with a threaded hole base with a trapezoidal cross-section for connecting and fixing the copper alloy valve body.

[0015] Preferably, the bottom end of the copper alloy valve body is provided with a rectangular threaded hole base for connecting and fixing the copper alloy valve body; the rectangular threaded hole base is provided with no less than 2 threaded mounting holes.

[0016] Compared with the prior art, the hot forged copper alloy refrigerant solenoid valve of the present application has the following beneficial effects:

[0017] The utility model is provided with a detachable filter screen, which is convenient for later maintenance and replacement. The filter screen is connected to the valve body through a card slot and is equipped with a limited abutment structure. After the protrusion of the filter screen is inserted into the card slot, the limited abutment structure fills and locks the movable space of the card slot through the limited protrusion. The structure is stable and reliable when in use, and it is portable, efficient and fast when disassembling. The limited abutment structure is made of rubber material, which has the function of abutting the filter screen and can also increase the sealing when the refrigerant inlet pipe is connected to the external pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0019] Figure 2 It is an exploded schematic diagram of an embodiment of the utility model;

[0020] Figure 3 It is a schematic structural diagram of the first circular step, the second circular step and the third circular step in the embodiment of the utility model;

[0021] Figure 4 for Figure 3 A magnified schematic diagram of the middle A area;

[0022] Figure 5 This is a schematic diagram of the structure of the L-shaped slot in the embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the filter screen in the embodiment of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the limiting cover ring in the embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the threaded hole base in the embodiment of the utility model;

[0026] Fig. 9 It is a schematic structural diagram of a threaded hole base in another embodiment of the utility model.

[0027] Reference numerals: refrigerant inlet pipe 1000, filter screen 1100, mesh body 1110, ring body 1120; outer ring 1121 of the ring body, annular end face 1122 of the ring body, outer ring 1123 of the ring body, protrusion 1124, limiting cover ring 1200, first pressure ring 1210, second pressure ring 1220, limiting protrusion 1230, first annular step 1300, annular end face 1310 of the first annular step, The second circular step 1400, the inner ring 1410 of the second circular step, the L-shaped slot 1420, the first slot 1421, the second slot 1422, the circular end face 1430 of the second circular step, the third circular step 1500, the circular end face 1510 of the third circular step, the refrigerant liquid outlet pipe 2000, the threaded hole base 3000, the rectangular threaded hole base 4000, and the threaded mounting hole 4100. DETAILED DESCRIPTION

[0028] The following is further described in detail through specific implementation methods:

[0029] like Figure 1-9 As shown, this embodiment shows a hot forged copper alloy refrigerant solenoid valve, including a copper alloy valve body; a refrigerant inlet pipe 1000 and a refrigerant outlet pipe 2000 are respectively provided at both ends of the copper alloy valve body; the refrigerant inlet pipe 1000 includes a detachable filter screen 1100 arranged at the end face, a detachable limiting cover ring 1200 for limiting the contact with the filter screen 1100, a first circular step 1300 detachably contacted with the filter screen 1100, a second circular step 1400 for clamping and fixing the filter screen 1100, and a third circular step 1500 for connecting the limiting cover ring 1200; the first circular step 1300, the second circular step 1400 and the third circular step 1500 are all integrally formed and connected with the refrigerant inlet pipe 1000. Specifically, the setting of the filter screen 1100 can filter out impurities in the pipeline to prevent impurities from clogging the inside of the valve body and affecting the flow of the refrigerant. To further illustrate, in some embodiments, such as Figure 8 As shown, the bottom end of the copper alloy valve body is provided with a threaded hole base 3000 having a trapezoidal cross section for connecting and fixing the copper alloy valve body. Fig. 9 As shown, the bottom end of the copper alloy valve body is provided with a rectangular parallelepiped threaded hole base 4000 for connecting and fixing the copper alloy valve body; the rectangular parallelepiped threaded hole base 4000 is provided with no less than two threaded mounting holes 4100. Threaded hole bases of different specifications are used to match different installation environments, thereby improving the installation adaptability of the refrigerant solenoid valve.

[0030] Further description, in some embodiments, such as Figure 2-6As shown, the filter 1100 includes a mesh body 1110 and a ring body 1120 for connecting and fixing the mesh body 1110; the outer ring 1121 of the ring body 1120 is detachably contacted and connected with the inner ring 1410 of the second circular ring step 1400; the annular end face 1122 on one side of the ring body is detachably contacted and connected with the annular end face 1310 of the first circular ring step. Furthermore, in these embodiments, the second circular step 1400 includes an L-shaped slot 1420 for snapping into the filter 1100; the L-shaped slot 1420 includes a first slot 1421 and a second slot 1422 that are vertically arranged, and the first slot 1421 and the second slot 1422 are arranged through each other; correspondingly, a protrusion 1124 matching the L-shaped slot 1420 is provided on the outer ring 1123 of the ring body of the filter 1100; the connection between the filter 1100 and the refrigerant inlet pipe 1000 is achieved by snapping the protrusion 1124 and the L-shaped slot 1420. During specific operation, the protrusion 1124 follows the first slot 1421 and the L-shaped bend into the second slot 1422, realizing the freedom restriction of the axial direction of the refrigerant inlet pipe 1000. Furthermore, in these embodiments, the length of the first slot 1421 is 1 / 2 of the second slot 1422; the length of the first slot 1421 is consistent with the length of the protrusion 1124; specifically, the protrusion 1124 can be completely hidden and connected in the second slot 1422. In other embodiments, the depth of the second slot 1422 is consistent with the thickness of the protrusion 1124, so that the protrusion 1124 is stably contacted and connected in the second slot 1422.

[0031] Further description, in some embodiments, such as Figure 1-3 and Figure 7 As shown, the limiting cover ring 1200 is made of rubber; the limiting cover ring 1200 includes a first pressure ring 1210 detachably contacted with the annular end face 1430 of the second annular step and a second pressure ring 1220 detachably contacted with the annular end face 1510 of the third annular step; the outer diameter of the second pressure ring 1220 is consistent with the outer diameter of the third annular step 1500; the first pressure ring 1210 and the second pressure ring 1220 are integrally formed. In these embodiments, as Figure 7 As shown, the outer edge of the first pressure ring 1210 is provided with a limiting protrusion 1230 matching the first card slot 1421; the limiting protrusion 1230 is detachably contacted and connected with the annular end face 1310 of the first circular step. In this embodiment, the first pressure ring 1220 stably contacts the filter 1100 with the end face of the first circular step 1300, and the limiting protrusion 1230 of the first pressure ring 1210 fills and locks the card slot activity space left by the protrusion 1124 of the filter 1100; on the other side, the second pressure ring 1120 completes the contact surface sealing between the end face of the refrigerant inlet pipe 1000 and the external pipeline. Specifically, the refrigerant inlet pipe is connected to the external pipeline through a nut.

[0032] In actual operation, the protrusion 1124 of the filter 1100 is first placed into the second slot 1422 along the first slot 1421 through an L-shaped bend and a certain slot space is reserved, and then the limiting cover ring 1200 is used to abut the filter 1100, and the limiting protrusion 1230 of the limiting cover ring 1200 will fill the slot space reserved by the protrusion 1124 of the filter 1100, thereby limiting the full degree of freedom of the filter 1100. At the same time, the rubber limiting cover ring 1200 abuts on the end face of the refrigerant inlet pipe 1000, and the refrigerant inlet pipe is connected to the external pipeline through a nut. The limiting cover ring 1200 is used to seal the connection between the end face of the refrigerant inlet pipe 1000 and the external pipeline.

[0033] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A hot forged copper alloy refrigerant solenoid valve, characterized in that: It comprises a copper alloy valve body; both ends of the copper alloy valve body are respectively provided with a refrigerant liquid inlet pipe and a refrigerant liquid outlet pipe; Among them, the refrigerant inlet pipe includes a detachable filter screen arranged at the end face, a detachable limiting cover ring for limiting and abutting the filter screen, a first circular step detachably abutting the filter screen, a second circular step for clamping and fixing the filter screen, and a third circular step for connecting the limiting cover ring; the first circular step, the second circular step and the third circular step are all integrally formed and connected to the refrigerant inlet pipe.

2. A hot forged copper alloy refrigerant solenoid valve according to claim 1, characterized in that: The filter screen includes a mesh body and a ring body for connecting and fixing the mesh body; the outer ring of the ring body is detachably contacted and connected with the inner ring of the second circular ring step; the circular end face on one side of the ring body is detachably contacted and connected with the circular end face of the first circular ring step.

3. The hot forged copper alloy refrigerant solenoid valve according to claim 2, characterized in that: The second circular step includes an L-shaped slot for clamping the filter; the L-shaped slot includes a first slot and a second slot that are perpendicular to each other, and the first slot and the second slot are connected; correspondingly, a protrusion matching the L-shaped slot is provided on the outer ring of the filter ring body; the connection between the filter and the refrigerant inlet pipe is achieved by clamping the protrusion and the L-shaped slot.

4. The hot forged copper alloy refrigerant solenoid valve according to claim 3, characterized in that: The length of the first card slot is 1 / 2 of the length of the second card slot; the length of the first card slot is consistent with the length of the protrusion.

5. The hot forged copper alloy refrigerant solenoid valve according to claim 3, characterized in that: The depth of the second slot is consistent with the thickness of the protrusion.

6. The hot forged copper alloy refrigerant solenoid valve according to claim 3, characterized in that: The limiting cover ring is made of rubber; the limiting cover ring includes a first pressure ring that is detachably connected to the annular end face of the second circular ring step and a second pressure ring that is detachably connected to the annular end face of the third circular ring step; the outer diameter of the second pressure ring is consistent with the outer diameter of the third circular ring step; the first pressure ring and the second pressure ring are both integrally formed.

7. The hot forged copper alloy refrigerant solenoid valve according to claim 6, characterized in that: A limiting protrusion matching the first clamping groove is provided at the outer edge of the first pressure ring; the limiting protrusion is detachably contacted and connected with the annular end surface of the first annular step.

8. The hot forged copper alloy refrigerant solenoid valve according to claim 1, characterized in that: The bottom end of the copper alloy valve body is provided with a threaded hole base with a trapezoidal cross section for connecting and fixing the copper alloy valve body.

9. The hot forged copper alloy refrigerant solenoid valve according to claim 1, characterized in that: The bottom end of the copper alloy valve body is provided with a rectangular parallelepiped threaded hole base for connecting and fixing the copper alloy valve body; the rectangular parallelepiped threaded hole base is provided with no less than 2 threaded mounting holes.

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