Reversing electromagnetic expansion valve

Abstract

The utility model relates to the technical field of expansion valves, in particular to a reversing electromagnetic expansion valve which comprises an expansion valve body and an electromagnetic valve arranged on the expansion valve body, an installation groove for installing the electromagnetic valve is formed in the expansion valve body, and the electromagnetic valve is provided with a valve seat embedded in the installation groove. Wherein a reducing sleeve is arranged in the mounting groove, the reducing sleeve is screwed in the mounting groove, a mounting hole allowing the valve seat to be embedded is formed in the reducing sleeve, a plurality of guide sliding grooves are formed in the mounting hole in the circumferential direction, and a plurality of protrusions matched with the guide sliding grooves are arranged on the outer cylindrical surface of the valve seat; a mounting plate of the electromagnetic valve is fixed to the expansion valve body through a bolt, and a spring is mounted between the head of the bolt and the mounting plate. Through the arrangement of the reducing sleeve, a traditional threaded connection mode is changed, sliding connection of the protrusions and the guide sliding grooves is adopted, installation convenience is improved, angle adjustment of the electromagnetic valve in the circumferential direction is achieved, and the electromagnetic valve can be adjusted to the optimal installation position angle advantageously.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion valves, in particular to a reversing electromagnetic expansion valve. Background Art

[0002] The electronic expansion valve is a key control component in refrigeration systems. It regulates the cooling capacity of the system by controlling the flow of refrigerant. Typically, an electronic expansion valve consists of a valve body and a coil. However, because the solenoid expansion valve is threaded within the valve body, the energized interface of the solenoid coil is fixed in one direction. This limits the expansion valve's installation position and angle. This can be particularly difficult in environments with limited space or specific installation requirements, making it impossible to achieve the optimal installation position and angle. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a reversing electromagnetic expansion valve to effectively solve the problems in the background technology.

[0004] In order to achieve the above-mentioned object, the technical solution adopted by the present utility model is: a reversing electromagnetic expansion valve, comprising: an expansion valve body and a solenoid valve arranged on the expansion valve body, the expansion valve body being provided with a mounting groove for mounting the solenoid valve, and the solenoid valve being provided with a valve seat embedded in the mounting groove;

[0005] Wherein, an adapter sleeve is provided in the mounting groove, the adapter sleeve is screwed in the mounting groove, a mounting hole is provided in the adapter sleeve for the valve seat to be embedded, a plurality of guide grooves are provided in the mounting hole along the circumferential direction, and a plurality of protrusions are provided on the outer cylindrical surface of the valve seat to match the plurality of guide grooves;

[0006] The mounting plate of the solenoid valve is fixed to the expansion valve body by means of bolts, and a spring is installed between the head of the bolt and the mounting plate.

[0007] Furthermore, the guide groove is arranged to penetrate along the axial direction, and a first annular groove is provided near the end position of the solenoid valve.

[0008] Furthermore, a distance is left between the end of the valve seat and the protrusion.

[0009] Furthermore, a second annular groove is provided in the middle of the guide groove;

[0010] A separation groove is provided at a position of the protrusion corresponding to the second annular groove.

[0011] Furthermore, the width of the second annular groove is greater than the length of the protrusion located below the separation groove.

[0012] Furthermore, a guide surface is provided on the upper edge of the guide slot.

[0013] Furthermore, the expansion valve body is provided with a first step surface for the valve seat to be embedded in, and a second step surface is provided on the first step surface;

[0014] And a sealing ring is provided on the second step surface.

[0015] Furthermore, the top end surface of the adapter sleeve is located between the first step surface and the second step surface.

[0016] Furthermore, a sleeve is provided on the outside of the spring, one end of the spring abuts against the mounting plate, and the other end abuts against the head of the bolt.

[0017] The beneficial effects of the present invention are as follows: the present invention changes the traditional threaded connection method through the setting of the adapter sleeve, adopts the sliding connection of the protrusion and the guide groove, improves the convenience of installation, realizes the angle adjustment of the solenoid valve in the circumferential direction, and is conducive to adjusting to the optimal installation position angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a structural diagram of a reversing electromagnetic expansion valve in an embodiment of the present utility model;

[0020] Figure 2 This is a structural diagram of the valve seat and the adapter sleeve in an embodiment of the utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of a reversing electromagnetic expansion valve in an embodiment of the present utility model;

[0022] Figure 4 Schematic diagram of the position of the guide surface in the embodiment of the present utility model.

[0023] Figure numerals: 1. Expansion valve body; 11. Mounting groove; 2. Solenoid valve; 21. Valve seat; 211. Protrusion; 212. Partition groove; 3. Adapter sleeve; 31. Guide groove; 31a. Guide surface; 32. First annular groove; 33. Second annular groove; 4. Bolt; 5. Spring; 6. Sleeve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] like Figures 1 to 4 The reversing electromagnetic expansion valve shown includes: an expansion valve body 1 and a solenoid valve 2 provided on the expansion valve body 1. The expansion valve body 1 is provided with a mounting groove 11 for mounting the solenoid valve 2. The solenoid valve 2 is provided with a valve seat 21 embedded in the mounting groove 11.

[0028] Among them, an adapter sleeve 3 is provided in the mounting groove 11, the adapter sleeve 3 is screwed in the mounting groove 11, and a mounting hole is provided in the adapter sleeve 3 for embedding the valve seat 21. A plurality of guide grooves 31 are provided in the mounting hole along the circumferential direction, and the outer cylindrical surface of the valve seat 21 is provided with a plurality of protrusions 211 that cooperate with the plurality of guide grooves 31; the mounting plate of the solenoid valve 2 is fixed to the expansion valve body 1 by a bolt 4, and a spring 5 is installed between the head of the bolt 4 and the mounting plate.

[0029] The implementation process of the present utility model is as follows: when assembling the solenoid valve 2 and the expansion valve body 1, the adapter sleeve 3 is screwed into the mounting groove 11, and the solenoid valve 2 is inserted into the mounting hole of the adapter sleeve 3 along the axial direction, ensuring that the protrusion 211 on the valve seat 21 is aligned with the guide groove 31 in the mounting hole, the spring 5 is put on the bolt 4, and the solenoid valve 2 is fixed to the expansion valve body 1 by the bolt 4; when the solenoid valve 2 needs to be rotated, the solenoid valve 2 is lifted upward as a whole to compress the spring 5, and the lifting is continued until the protrusion 211 is completely separated from the guide groove 31, and the solenoid valve 2 is rotated to the appropriate position, and the valve seat 21 of the solenoid valve 2 is reinserted into the mounting hole, and the protrusion 211 slides along the guide groove 31. Under the action of the spring 5, the solenoid valve 2 is fixed to the expansion valve body 1. It should be noted that the number of protrusions 211 and guide grooves 31 set in the circumferential direction can meet the angle adjustment requirements of the solenoid valve 2.

[0030] The utility model changes the traditional threaded connection method through the setting of the adapter sleeve 3, adopts the sliding connection of the protrusion 211 and the guide groove 31, improves the convenience of installation, realizes the angle adjustment of the solenoid valve 2 in the circumferential direction, and is conducive to adjusting to the optimal installation position angle.

[0031] The protrusion 211 and the guide groove 31 allow the solenoid valve 2 to rotate in the adapter sleeve 3 without disassembly, providing a flexible and convenient installation and adjustment method. This design allows the angle of the solenoid valve 2 to be adjusted without disassembling the entire system, thereby improving installation efficiency and system adjustability.

[0032] In the present invention, the guide slot 31 extends axially through the guide slot 31, and a first annular slot 32 is provided near the end of the solenoid valve 2, leaving a distance between the end of the valve seat 21 and the protrusion 211. The design of the first annular slot 32 reduces the distance that the protrusion 211 must travel within the guide slot 31, allowing the solenoid valve 2 to be quickly adjusted to a suitable position.

[0033] In the preferred embodiment, a second annular groove 33 is provided in the middle of the guide groove 31; a separation groove 212 is provided at the position of the protrusion 211 corresponding to the second annular groove 33. The width of the second annular groove 33 is greater than the length of the protrusion 211 located below the separation groove 212. This allows the valve seat 21 to adjust its installation angle, further shortening the sliding distance required for the valve seat 21 to lift upward.

[0034] In the present invention, a guide surface 31a is provided on the upper edge of the guide slot 31. The presence of the guide surface 31a ensures the correct alignment between the protrusion 211 and the guide slot 31, thereby improving the positioning accuracy during assembly.

[0035] In the preferred embodiment of the present invention, the expansion valve body 1 is provided with a first step surface for the valve seat 21 to be embedded in, and a second step surface is provided on the first step surface; and a sealing ring is provided on the second step surface.

[0036] By arranging a sealing ring on the second step surface, it is possible to ensure that the connection between the valve seat 21 and the solenoid valve 2 has good sealing performance, thereby preventing leakage of refrigerant and other media at the connection.

[0037] Based on the above solution, the top end face of the adapter sleeve 3 is located between the first step surface and the second step surface, providing precise positioning for the installation of the solenoid valve 2, while protecting the sealing ring on the second step surface to avoid overpressure damage during the installation process and ensure sealing performance.

[0038] In the preferred embodiment of the present invention, a sleeve 6 is provided outside the spring 5, one end of the spring 5 abuts against the mounting plate, and the other end abuts against the head of the bolt 4. By lifting the sleeve 6 upward, the spring 5 can be compressed, and the solenoid valve 2 can move upward without overcoming the force of the spring 5.

[0039] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A reversing electromagnetic expansion valve, characterized in that: include: An expansion valve body (1) and a solenoid valve (2) provided on the expansion valve body (1), wherein the expansion valve body (1) is provided with a mounting groove (11) for mounting the solenoid valve (2), and the solenoid valve (2) is provided with a valve seat (21) embedded in the mounting groove (11); Wherein, an adapter sleeve (3) is provided in the mounting groove (11), the adapter sleeve (3) is screwed in the mounting groove (11), a mounting hole for the valve seat (21) to be embedded is provided in the adapter sleeve (3), a plurality of guide grooves (31) are provided in the mounting hole along the circumferential direction, and the outer cylindrical surface of the valve seat (21) is provided with a plurality of protrusions (211) that match the plurality of guide grooves (31); The mounting plate of the solenoid valve (2) is fixed to the expansion valve body (1) via bolts (4), and a spring (5) is installed between the head of the bolt (4) and the mounting plate.

2. The reversing electromagnetic expansion valve according to claim 1, characterized in that: The guide sliding groove (31) is arranged to penetrate along the axial direction, and a first annular groove (32) is provided near the end position of the solenoid valve (2).

3. The reversing electromagnetic expansion valve according to claim 2, characterized in that: There is a distance between the end of the valve seat (21) and the protrusion (211).

4. The reversing electromagnetic expansion valve according to claim 1, characterized in that: A second annular groove (33) is provided in the middle of the guide sliding groove (31); A separation groove (212) is provided at a position of the protrusion (211) corresponding to the second annular groove (33).

5. The reversing electromagnetic expansion valve according to claim 4, characterized in that: The width of the second annular groove (33) is greater than the length of the protrusion (211) located below the separation groove (212).

6. The reversing electromagnetic expansion valve according to claim 1, characterized in that: The upper edge of the guide chute (31) is provided with a guide surface (31a).

7. The reversing electromagnetic expansion valve according to claim 1, characterized in that: The expansion valve body (1) is provided with a first step surface for the valve seat (21) to be embedded, and a second step surface is provided on the first step surface; And a sealing ring is provided on the second step surface.

8. The reversing electromagnetic expansion valve according to claim 7, characterized in that: The top end surface of the adapter sleeve (3) is located between the first step surface and the second step surface.

9. The reversing electromagnetic expansion valve according to claim 1, characterized in that: A sleeve (6) is provided on the outside of the spring (5), one end of the spring (5) abuts against the mounting plate, and the other end abuts against the head of the bolt (4).

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