Self-control type air conditioner unloading valve structure

Abstract

The utility model belongs to the technical field of unloading valves, and particularly relates to a self-control type air conditioner unloading valve structure. The check valve comprises a valve seat assembly, a valve body assembly is inserted into the upper portion of the valve seat assembly, a positioning clamping sleeve is arranged outside the connecting position of the valve seat assembly and the valve body assembly in a sleeved mode, a limiting ball is arranged in a through hole portion in the side wall of the valve seat assembly, and the two sides of the limiting ball are arranged in the outer wall of the valve body assembly and the inner wall of the positioning clamping sleeve respectively. According to the utility model, the valve seat assembly, the valve body assembly and the positioning clamping sleeve are internally provided with the limiting balls, so that the valve seat assembly and the valve body assembly are convenient to assemble and disassemble, the positioning clamping sleeve is arranged in the valve seat assembly, the positioning clamping sleeve is arranged in the valve body assembly, the positioning clamping sleeve is arranged in the positioning clamping sleeve, and the spring is arranged between the protruding part and the bottom of the ring groove part. And the valve seat assembly is prevented from being fixed under the rusting condition, the valve seat assembly structure cannot be damaged during disassembly, and the service life is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding mechanism and relates to a self-controlled air conditioning unloading valve structure. Background Technology

[0002] An unloading valve is a valve that allows a hydraulic pump to unload under certain conditions. Currently used air conditioning refrigeration systems typically have a condensing pressure unloading valve between the condenser outlet and the compressor return port to connect the high-temperature, high-pressure refrigerant liquid in the condenser to the low-pressure gas in the compressor return pipe. Existing unloading valves use a screw-on structure for fixing, relying solely on non-sealing structures like threads for sealing. Under high-temperature conditions, the internal valve plate is frequently actuated by the condensing pressure, the compressor suction pressure difference, and the internal spring force. When the valve plate reaches its fatigue limit, it needs replacement or repair. However, the upper threaded structure is prone to rusting and seizing after prolonged use, making disassembly difficult and potentially damaging the lower valve seat structure, thus reducing the unloading valve's lifespan. Therefore, to address these issues, a self-regulating air conditioning unloading valve structure is proposed. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned problems by providing a self-controlled air conditioning unloading valve structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A self-regulating air conditioning unloading valve structure includes a valve seat assembly. The valve seat assembly has an inlet pipe assembly on its side and an outlet pipe assembly inserted at its bottom. A valve body assembly is inserted inside the upper part of the valve seat assembly, and a limiting ball is clamped inside the wall of the valve seat assembly. A positioning sleeve is fitted over the upper part of the valve seat assembly, and the outer side of the limiting ball is clamped inside the middle of the inner wall of the positioning sleeve. The inner side of the limiting ball is inserted into the lower side wall of the valve body assembly. A protrusion is provided on the lower part of the inner wall of the positioning sleeve, and the protrusion is inserted into the outer wall of the valve seat assembly. A spring is provided between the lower part of the protrusion and the stepped surface of the outer wall of the valve seat assembly.

[0006] In the above-mentioned self-controlled air conditioning unloading valve structure, the valve seat assembly is inserted into the upper part of the sliding connection valve body assembly, and multiple through holes are opened on the upper part of the side wall of the valve seat assembly, and the multiple through holes equally divide the side wall of the valve seat assembly.

[0007] In the above-mentioned self-controlled air conditioning unloading valve structure, a plurality of limiting arc grooves are provided on the lower side of the outer wall of the valve body assembly, and the plurality of limiting arc grooves equally divide the lower side of the outer wall of the valve body assembly. At the same time, the plurality of limiting arc grooves correspond one-to-one with the plurality of through holes.

[0008] In the above-mentioned self-controlled air conditioning unloading valve structure, a sliding connection limiting ball is inserted into the through hole, and the outer side of the limiting ball extends beyond the valve seat assembly wall, while the inner side of the limiting ball extends beyond the inner wall of the valve seat assembly.

[0009] In the above-mentioned self-controlled air conditioning unloading valve structure, the inner side of the limiting ball is inserted into the fixed connection limiting arc groove, and the inner side of the limiting ball is in rolling connection with the lower outer wall of the valve body assembly.

[0010] In the above-mentioned self-controlled air conditioning unloading valve structure, the positioning sleeve has a built-in hole, which is fitted over the sliding connection valve seat assembly, and the inner wall of the built-in hole is tightly fitted with the outer wall of the valve seat assembly.

[0011] In the above-mentioned self-controlled air conditioning unloading valve structure, a plurality of positioning grooves are provided in the middle of the inner wall of the positioning sleeve, and the plurality of positioning grooves are equally divided around the positioning sleeve. At the same time, the plurality of positioning grooves correspond one-to-one with the plurality of through holes.

[0012] In the above-mentioned self-controlled air conditioning unloading valve structure, the positioning groove is fixedly connected to the outer side of the limiting ball, and multiple movable grooves are opened on the upper part of the inner wall of the positioning sleeve, while the movable grooves are slidably connected to the outer side of the limiting ball.

[0013] In the above-mentioned self-controlled air conditioning unloading valve structure, a circular groove is provided around the upper part of the outer wall of the valve seat assembly, and the circular groove is positioned below the through hole with a gap.

[0014] In the above-mentioned self-controlled air conditioning unloading valve structure, a protrusion is fixedly connected around the lower circumference of the inner wall of the positioning sleeve, and the protrusion is inserted into the groove of the sliding connecting ring. At the same time, the two ends of the spring are fixedly connected between the lower part of the protrusion and the bottom of the groove of the ring.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This invention involves inserting a valve body assembly into the upper part of a valve seat assembly, with a positioning sleeve fitted around the connection between the valve seat assembly and the valve body assembly. A limiting ball is located within a through-hole in the side wall of the valve seat assembly, with its two sides positioned inside the outer wall of the valve body assembly and the inner wall of the positioning sleeve, respectively. A protrusion inside the positioning sleeve inserts into a groove on the upper part of the valve seat assembly, and a spring is positioned between the protrusion and the bottom of the groove. By utilizing the limiting ball installed in the valve seat assembly, valve body assembly, and positioning sleeve, the valve seat assembly and valve body assembly can be easily installed and disassembled, preventing them from becoming stuck due to rust. Furthermore, disassembly does not damage the valve seat assembly structure, thus increasing its service life.

[0017] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of the present invention;

[0019] Figure 2 This is an enlarged schematic diagram of point A of this utility model;

[0020] Figure 3 This is a schematic diagram of the valve seat assembly structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the valve body assembly structure of this utility model;

[0022] Figure 5 This is a cross-sectional schematic diagram of the positioning sleeve structure of this utility model.

[0023] In the figure: 1. Valve seat assembly; 101. Ring groove; 102. Through hole; 2. Valve body assembly; 201. Limiting arc groove; 3. Positioning sleeve; 301. Positioning groove; 302. Movable groove; 303. Protrusion; 304. Internal hole; 4. Limiting ball; 5. Spring; 6. Inlet pipe assembly; 7. Outlet pipe assembly. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, a self-controlled air conditioning unloading valve structure includes a valve seat assembly 1, an inlet pipe assembly 6 on the side of the valve seat assembly 1, and an outlet pipe assembly 7 inserted at the bottom of the valve seat assembly 1. A valve body assembly 2 is inserted below the valve seat assembly 1, and a limiting ball 4 is clamped inside the wall of the valve seat assembly 1. A positioning sleeve 3 is fitted over the valve seat assembly 1, and the outer side of the limiting ball 4 is clamped in the middle of the inner wall of the positioning sleeve 3. At the same time, the inner side of the limiting ball 4 is inserted into the lower side wall of the valve body assembly 2. A protrusion 303 is provided below the inner wall of the positioning sleeve 3, and the protrusion 303 is inserted into the outer wall of the valve seat assembly 1. At the same time, a spring 5 is provided between the lower part of the protrusion 303 and the stepped surface of the outer wall of the valve seat assembly 1.

[0026] The valve seat assembly 1 is inserted into the upper part of the sliding connection valve body assembly 2, and multiple through holes 102 are opened on the upper side wall of the valve seat assembly 1, while the multiple through holes 102 equally divide the side wall of the valve seat assembly 1.

[0027] After inserting the connecting valve body assembly 2 above the valve seat assembly 1, the valve seat assembly 1 and the valve body assembly 2 form a complete unloading valve.

[0028] Furthermore, a plurality of limiting arc grooves 201 are provided on the lower side of the outer wall of the valve body assembly 2, and the plurality of limiting arc grooves 201 equally divide the lower side of the outer wall of the valve body assembly 2, and the plurality of limiting arc grooves 201 correspond one-to-one with the plurality of through holes 102.

[0029] Furthermore, a sliding connecting limiting ball 4 is inserted into the through hole 102, and the outer side of the limiting ball 4 extends beyond the wall of the valve seat assembly 1, while the inner side of the limiting ball 4 extends beyond the inner wall of the valve seat assembly 1.

[0030] After the limiting ball 4 is installed in the through hole 102 provided in the wall of the valve seat assembly 1, when the valve body assembly 2 is inserted into the valve seat assembly 1, the inner side of the limiting ball 4 extends beyond the inner wall of the valve seat assembly 1. As a result, the inner side of the limiting ball 4 will be stuck in the limiting arc groove 201 below the valve body assembly 2, so that the lower part of the valve seat assembly 1 is inserted into the upper part of the valve body assembly 2 for connection and fixation.

[0031] Furthermore, the inner side of the limiting ball 4 is inserted into the fixed connection limiting arc groove 201, and the inner side of the limiting ball 4 is in rolling connection with the lower outer wall of the valve body assembly 2.

[0032] When the valve body assembly 2 is pulled out of the valve seat assembly 1, the outer wall of the valve body assembly 2 will push the limiting ball 4 outward. At this time, the limiting ball 4 moves out of the limiting arc groove 201 and is pushed outward from the through hole 102 by the outer wall of the valve body assembly 2.

[0033] The positioning sleeve 3 has a built-in hole 304 inside, and the built-in hole 304 is fitted on the upper part of the sliding connection valve seat assembly 1, while the inner wall of the built-in hole 304 is tightly fitted with the outer wall of the valve seat assembly 1.

[0034] Furthermore, the inner wall of the positioning sleeve 3 has multiple positioning grooves 301, which are evenly distributed around the positioning sleeve 3, and the multiple positioning grooves 301 correspond one-to-one with the multiple through holes 102.

[0035] A positioning sleeve 3 is fitted over the valve seat assembly 1, so that the positioning sleeve 3 moves up and down along the outer wall of the valve seat assembly 1.

[0036] Furthermore, the positioning groove 301 is inserted into the outer side of the fixed connection limiting ball 4, and multiple movable grooves 302 are provided on the upper part of the inner wall of the positioning sleeve 3, while the movable grooves 302 are slidably connected to the outer side of the limiting ball 4.

[0037] After the limiting ball 4 is inserted into the positioning groove 301 inside the positioning sleeve 3, the positioning sleeve 3 fixes the limiting ball 4 while the limiting ball 4 also fixes the valve body assembly 2. In this way, the valve seat assembly 1, the valve body assembly 2 and the positioning sleeve 3 are fixed by the limiting ball 4 at the same time. After the positioning sleeve 3 moves downward, the valve body assembly 2 is pulled out. At the same time as it is pulled out, the limiting ball 4 is pushed into the movable groove 302 at the top inside the positioning sleeve 3, and the valve body assembly 2 can be detached.

[0038] Furthermore, a circular groove 101 is provided around the upper part of the outer wall of the valve seat assembly 1, and the circular groove 101 is positioned below the through hole 102 with a gap.

[0039] Furthermore, a protrusion 303 is fixedly connected around the lower part of the inner wall of the positioning sleeve 3, and the protrusion 303 is inserted into the groove of the sliding connecting ring 101. At the same time, the two ends of the spring 5 are fixedly connected between the lower part of the protrusion 303 and the bottom of the groove of the ring 101.

[0040] A spring 5 is provided between the protrusion 303 on the positioning sleeve 3 and the groove 101 on the valve seat assembly 1, so that the positioning sleeve 3 is fixed above the valve seat assembly 1 and the positioning sleeve 3 can move up and down above the valve seat assembly 1. At the same time, the characteristics of the spring 5 can be used to make the positioning sleeve 3 return to its original position after moving.

[0041] Working principle:

[0042] A valve body assembly 2 is inserted into the valve seat assembly 1 to form a complete unloading valve. A positioning sleeve 3 is fitted on the outside of the connection between the valve seat assembly 1 and the valve body assembly 2. A limiting ball 4 is provided in the through hole 102 in the side wall of the valve seat assembly 1. The two sides of the limiting ball 4 are respectively placed in the limiting arc groove 201 on the outer wall of the valve body assembly 2 and the positioning groove 301 on the inner wall of the positioning sleeve 3. In this way, the limiting ball 4 fixes the valve seat assembly 1, the valve body assembly 2 and the positioning sleeve 3. When the valve body assembly 2 needs to be installed, the positioning sleeve 3 is first pulled down. Since the lower part of the positioning sleeve 3 has a protrusion 303, it is inserted into the ring groove 101 on the upper side of the valve seat assembly 1. The protrusion 303 and the ring groove 101 are connected. A spring 5 is provided at the bottom of 01. At this time, the spring 5 is in a compressed state. At the same time, the outer side of the limiting ball 4 is pushed into the movable groove 302 above the positioning sleeve 3 by the outer wall of the valve body assembly 2. When the limiting arc groove 201 on the valve body assembly 2 reaches the through hole 102, the positioning sleeve 3 is released and reset. At this time, the inner side of the limiting ball 4 is placed in the limiting arc groove 201 outside the valve body assembly 2, and the limiting ball 4 fixes the valve seat assembly 1, the valve body assembly 2 and the positioning sleeve 3. When it is necessary to disassemble the valve body assembly 2, pull down the positioning sleeve 3 again so that the movable groove 302 is placed outside the limiting ball 4. Then pull out the valve body assembly 2 so that the outer side of the limiting ball 4 is placed in the movable groove 302. In this way, the valve body assembly 2 can be removed.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0044] Although this document frequently uses terms such as 1. valve seat assembly; 101. grooved portion; 102. through hole portion; 2. valve body assembly; 201. limiting arc groove portion; 3. positioning sleeve; 301. positioning groove portion; 302. movable groove portion; 303. protrusion portion; 304. internal hole portion; 4. limiting ball; 5. spring; 6. inlet pipe assembly; 7. outlet pipe assembly, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A self-regulating air conditioning unloading valve structure, comprising a valve seat assembly (1), wherein an inlet pipe assembly (6) is provided on the side of the valve seat assembly (1), and an outlet pipe assembly (7) is inserted into the bottom of the valve seat assembly (1), characterized in that: The valve seat assembly (1) is inserted above the valve body assembly (2) below it, and a limiting ball (4) is clamped inside the wall of the valve seat assembly (1). A positioning sleeve (3) is fitted over the valve seat assembly (1), and the outer side of the limiting ball (4) is clamped in the middle of the inner wall of the positioning sleeve (3). At the same time, the inner side of the limiting ball (4) is inserted into the lower side wall of the valve body assembly (2). A protrusion (303) is provided below the inner wall of the positioning sleeve (3), and the protrusion (303) is inserted into the outer wall of the valve seat assembly (1). At the same time, a spring (5) is provided between the lower part of the protrusion (303) and the stepped surface of the outer wall of the valve seat assembly (1).

2. The self-regulating air conditioning unloading valve structure according to claim 1, characterized in that: The valve seat assembly (1) is inserted into the upper part of the sliding connection valve body assembly (2), and multiple through holes (102) are opened on the upper part of the side wall of the valve seat assembly (1), while the multiple through holes (102) equally divide the side wall of the valve seat assembly (1).

3. The self-regulating air conditioning unloading valve structure according to claim 2, characterized in that: The valve body assembly (2) has multiple limiting arc grooves (201) on the lower side of its outer wall, and the multiple limiting arc grooves (201) are evenly distributed around the lower side of the outer wall of the valve body assembly (2). At the same time, the multiple limiting arc grooves (201) correspond one-to-one with the multiple through holes (102).

4. The self-regulating air conditioning unloading valve structure according to claim 3, characterized in that: The through hole (102) is fitted with a sliding connection limiting ball (4), and the outer side of the limiting ball (4) extends beyond the wall of the valve seat assembly (1), while the inner side of the limiting ball (4) extends beyond the inner wall of the valve seat assembly (1).

5. The self-regulating air conditioning unloading valve structure according to claim 4, characterized in that: The inner side of the limiting ball (4) is inserted into the fixed connection limiting arc groove (201), and the inner side of the limiting ball (4) is in rolling connection with the lower outer wall of the valve body assembly (2).

6. The self-regulating air conditioning unloading valve structure according to claim 5, characterized in that: The positioning sleeve (3) has a built-in hole (304) inside, and the built-in hole (304) is fitted over the sliding connection valve seat assembly (1), while the inner wall of the built-in hole (304) is tightly fitted with the outer wall of the valve seat assembly (1).

7. The self-regulating air conditioning unloading valve structure according to claim 6, characterized in that: The positioning sleeve (3) has multiple positioning grooves (301) in the middle of its inner wall, and the multiple positioning grooves (301) are equally divided around the positioning sleeve (3). At the same time, the multiple positioning grooves (301) correspond one-to-one with the multiple through holes (102).

8. The self-regulating air conditioning unloading valve structure according to claim 7, characterized in that: The positioning groove (301) is fitted into the outer side of the fixed connection limiting ball (4), and multiple movable grooves (302) are opened on the upper part of the inner wall of the positioning sleeve (3), while the movable grooves (302) are slidably connected to the outer side of the limiting ball (4).

9. The self-regulating air conditioning unloading valve structure according to claim 8, characterized in that: The valve seat assembly (1) has a circumferential groove (101) on the upper part of its outer wall, and the circumferential groove (101) is positioned below the through hole (102) with a gap.

10. The self-regulating air conditioning unloading valve structure according to claim 9, characterized in that: The lower part of the inner wall of the positioning sleeve (3) is fixedly connected to the protrusion (303), and the protrusion (303) is inserted into the groove of the sliding connecting ring (101). At the same time, the two ends of the spring (5) are fixedly connected between the lower part of the protrusion (303) and the bottom of the groove of the ring (101).

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