Liquid impact resistant compressor four-way valve

Abstract

The utility model discloses a liquid impact resistant compressor four-way valve, and relates to the technical field of four-way valves. The anti-impact valve comprises a valve body, a first anti-impact structure and a second anti-impact structure. The valve body comprises a valve seat located on the inner wall of the valve body, a valve block installed at the upper end of the valve seat in a sliding mode, a U-shaped valve pipe installed in the valve block in an embedded mode, a left valve bowl body and a right valve bowl body, wherein the left valve bowl body and the right valve bowl body are fixedly arranged at the two ends of the valve block. The first anti-impact structure comprises ring seats fixedly arranged on the inner walls of the two openings of the U-shaped valve pipe, stress blocks located in the ring seats and facing the opposite directions, and first springs fixedly arranged between the stress blocks and the ring seats. Through the arrangement of the first impact-resistant structure, the problems that in the using process of the valve block, fluid conveyed inside impacts the inner wall of the U-shaped valve pipe at the turning position of the U-shaped valve pipe, liquid impact on the inner wall of the U-shaped structure is large, loss of the inner wall of the adjusting valve block is large, and the service life of the adjusting valve block is shortened are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to four -way valve technical field especially anti -liquid strike compressor four -way valve is provided. BACKGROUND

[0002] Four -way valve is the core control part in refrigeration / heat pump system, it is mainly used for changing refrigerant flow direction, realizes refrigeration and heating mode switching, when the coil is in the power -off state, the guide valve small valve block left shift, the high pressure fluid of air conditioning compressor enters the right valve bowl cavity of main valve through the capillary, the low pressure fluid of left valve bowl cavity returns to the compressor through the capillary, and the valve bowl machine valve block shifts left, forms the refrigeration cycle heating state, when the coil is in the power -on state, the guide valve small valve block right shift, the high pressure fluid of air conditioning compressor enters the left valve bowl cavity of main valve through the capillary, the low pressure fluid of right valve bowl cavity returns to the compressor through the capillary, and the valve bowl and valve block shift right, form heating cycle.

[0003] Chinese patent discloses a kind of four-way valve (authorized announcement number CN219102155U), the patent technology includes pilot valve and main control valve, main control valve is equipped with valve cavity, valve cavity is equipped with spool assembly, pilot valve is communicated with the two ends of valve cavity respectively, to drive spool assembly moves in valve cavity.The cross-sectional area of the two ends of valve cavity communicated with pilot valve is less than the cross-sectional area at valve cavity center section.This application provides four-way valve, solve the problem that the required thrust of existing four-way valve is larger during operation, and the reversing speed of four-way valve is slower, and then lead to the problem of low reversing efficiency of four-way valve.

[0004] The patent technology has the advantage of improving valve block reversing efficiency when in use, but there are still deficiencies in the process of use, the fluid transported in the process of use of valve block will impact the inner wall of U-shaped valve pipe at the bend, which will cause the liquid impact of the inner wall of U-shaped structure to be large, resulting in large wear of the inner wall of regulating valve block, and short service life, therefore, the anti-liquid strike compressor four-way valve is provided by the person skilled in the art to solve the problems raised in the above background technology. UTILITY MODEL CONTENTS

[0005] 1. Technical scheme

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0007] The utility model discloses an anti-liquid strike compressor four-way valve, including valve body, anti -impact structure one and anti -impact structure two,

[0008] The valve body includes valve seat on the inner wall of valve body, valve block slidingly installed on the upper end of valve seat, U-shaped valve pipe embeddedly installed in the inside of valve block, left valve bowl body and right valve bowl body fixedly arranged at both ends of valve block;

[0009] The anti-impact structure one comprises a ring seat fixed on the inner wall of the two openings of the U-shaped valve pipe, stress blocks located inside the ring seat and facing opposite directions, spring one fixed between the stress blocks and the ring seat, and a lining plate fixed on the inner wall of the U-shaped valve pipe.

[0010] Further, the valve body is provided with a left valve bowl cavity and a right valve bowl cavity at the inner part of the two ends, respectively, the left valve bowl body and the right valve bowl body are slidingly installed on the inner wall of the left valve bowl body and the right valve bowl body, and the right valve bowl body is slidingly installed on the inner wall of the right valve bowl cavity.

[0011] Specifically, when the high-pressure fluid of the air conditioner compressor enters the left valve bowl cavity and the right valve bowl cavity through the capillary, it exerts pressure on the left valve bowl body and the right valve bowl body located inside the left valve bowl cavity and the right valve bowl cavity, and then acts on the valve block to drive the valve block to slide.

[0012] Further, the outer wall of the stress block is a conical surface, the inner wall of the upper and lower ends of the ring seat is funnel-shaped, and the thickness of the funnel-shaped inner wall of the upper and lower ends of the ring seat gradually decreases from the outside to the center.

[0013] Specifically, the conical surface exerts extrusion force on the fluid passing through the straight surface, and guides the fluid to the outside of the stress block, and the thickness of the funnel-shaped inner wall of the upper and lower ends of the ring seat gradually decreases from the outside to the center, which plays a guiding role on the passing fluid and reduces the impact force.

[0014] Further, an oil cavity is formed in the inside of the stress block, a sliding sleeve is embeddedly installed on the inner wall of the oil cavity, a connecting rod is slidingly installed in the inside of the sliding sleeve, a support strip in annular array distribution and connected with the inner wall of the ring seat is arranged on the outer wall of one end of the connecting rod, a piston slidingly installed in the inside of the oil cavity is arranged on one end of the connecting rod located in the inside of the oil cavity, and a flow channel is arranged between the piston and the inner wall of the oil cavity.

[0015] Specifically, the piston flows in the inside of the oil cavity, the hydraulic oil flows through the flow channel at both ends of the piston, and the support strip fixes the connecting rod in the inside of the ring seat.

[0016] Further, the anti-impact structure two comprises a rubber ring in the inside of the left valve bowl cavity and the right valve bowl cavity, a spring two is arranged on one end of the rubber ring, and a support ring connected with the inner wall of the left valve bowl cavity and the right valve bowl cavity is arranged on one end of the spring two.

[0017] Specifically, when the rubber ring is stressed, it shrinks itself and simultaneously exerts extrusion force on the spring two, so as to avoid the direct impact of the left valve bowl body and the right valve bowl body on the inner wall of one side of the left valve bowl cavity and the right valve bowl cavity.

[0018] Further, a rubber sleeve connected with one end of the support ring and located in the inside of the spring two is arranged on one end of the rubber ring.

[0019] Specifically, the high-pressure fluid of the air conditioner compressor enters the left valve bowl cavity and the right valve bowl cavity through the capillary, and then flows into the rubber sleeve, and the rubber sleeve is provided with the condition of stretching and retracting, so as to ensure the effective stretching and retracting of the spring two.

[0020] 2. Beneficial effects

[0021] Compared with the prior art, the utility model has the advantages that:

[0022] The fluid entering the U-shaped valve pipe directly impacts the stress block and guides the fluid to the lining plate, avoiding direct impact on the inner wall of the U-shaped valve pipe, and the stress block is elastically supported by the spring one, plays a buffering role, adjusts the stretching and retracting condition according to the impact force, improves the anti-liquid impact ability of the inner wall of the U-shaped valve pipe, and further improves the service life of the U-shaped valve pipe.

[0023] Meanwhile, when the stress block moves, the piston slides in the oil cavity, and the hydraulic oil in the oil cavity is subjected to resistance when passing through the flow channel outside the piston, thereby providing damping for the reset of the spring one during the stretching and retracting process, and the spring one is buffered during the stretching and retracting reset process, reducing the fatigue of the spring one during the stretching and retracting process.

[0024] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0026] Figure 1 It is a front view of the utility model;

[0027] Figure 2 It is a top view of the valve body inside the utility model;

[0028] Figure 3 It is a rear sectional view of the left valve bowl cavity of the utility model;

[0029] Figure 4 It is a front view of the valve block of the utility model;

[0030] Figure 5 It is a main sectional view of the U-shaped valve pipe of the utility model.

[0031] In the drawings, the components represented by each number are listed as follows:

[0032] 100, valve body; 101, left valve bowl cavity; 102, right valve bowl cavity; 103, valve block; 104, U-shaped valve pipe; 105, left valve bowl body; 106, right valve bowl body; 107, valve seat;

[0033] 200, anti-impact structure one; 201, force receiving block; 202, oil cavity; 203, sliding sleeve; 204, connecting rod; 205, support strip; 206, ring seat; 207, piston; 208, spring one; 209, lining plate;

[0034] 300, anti-impact structure two; 301, rubber ring; 302, spring two; 303, support ring; 304, rubber sleeve. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0036] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0037] Secondly, the utility model is described in detail in combination with the schematic diagram, when detailing the embodiments of the utility model, for the convenience of illustration, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the utility model herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0038] In order to make the purposes, technical schemes and advantages of the utility model more clear, the embodiments of the utility model will be described in further detail below in combination with the drawings.

[0039] Example 1

[0040] Please refer to Figures 1-5 The embodiment is an anti-liquid impact compressor four-way valve, which comprises a valve body 100 and an anti-impact structure one 200,

[0041] The valve body 100 comprises a valve seat 107 on the inner wall of the valve body 100, a valve block 103 slidingly installed on the upper end of the valve seat 107, a U-shaped valve pipe 104 embeddedly installed in the inside of the valve block 103, a left valve bowl body 105 and a right valve bowl body 106 fixedly arranged at both ends of the valve block 103;

[0042] The anti-impact structure 200 comprises a ring seat 206 fixed on the inner wall of the two openings of the U-shaped valve pipe 104, stress blocks 201 located inside the ring seat 206 and facing opposite directions, springs 208 fixed between the stress blocks 201 and the ring seat 206, and a lining plate 209 fixed on the inner wall of the U-shaped valve pipe 104;

[0043] The outer wall of the stress block 201 is a conical surface, and the inner walls of the upper and lower ends of the ring seat 206 are funnel-shaped, and the thickness of the funnel-shaped inner walls of the upper and lower ends of the ring seat 206 gradually decreases from the outside to the center;

[0044] The stress block 201 is internally provided with an oil cavity 202, the inner wall of the oil cavity 202 is embeddedly provided with a sliding sleeve 203, the sliding sleeve 203 is internally slidably provided with a connecting rod 204, the outer wall of one end of the connecting rod 204 is provided with support strips 205 arranged in an annular array and connected with the inner wall of the ring seat 206, and the one end of the connecting rod 204 located inside the oil cavity 202 is provided with a piston 207 slidably installed in the oil cavity 202, and a flow channel is arranged between the piston 207 and the inner wall of the oil cavity 202;

[0045] The valve body 100 is internally provided with a left valve bowl cavity 101 and a right valve bowl cavity 102 at two ends, respectively, a left valve bowl body 105 is slidably arranged with the inner wall of the left valve bowl cavity 101, and a right valve bowl body 106 is slidably arranged with the inner wall of the right valve bowl cavity 102;

[0046] In the operation of the conventional four-way valve in the refrigeration / heat pump system, when the high-pressure refrigerant fluid flows through the U-shaped valve pipe 104, a severe liquid impact will be generated due to the sudden change of flow direction, the elbow of the U-shaped valve pipe 104 is subjected to long-term impact, the material of the inner wall is accelerated to wear, and the risk of leakage is caused. The liquid impact causes high-frequency vibration and turbulence, increases the system noise and flow resistance, and after the high-pressure fluid enters the U-shaped valve pipe 104, it first impacts the conical surface of the stress block 201, the conical structure divides the fluid to the side, reduces the direct impact on the central area of the U-shaped valve pipe 104, and the funnel-shaped inner wall of the ring seat 206 further guides the diffusion of the fluid, reduces the turbulence intensity, and the fluid impact force drives the stress block 201 to compress the spring 208, the spring absorbs the impact kinetic energy, and after the impact is over, the spring 208 rebounds to drive the stress block 201 to reset, avoiding continuous vibration. When the stress block 201 moves, the connecting rod 204 drives the piston 207 to slide in the oil cavity 202, the hydraulic oil generates viscous resistance when passing through the flow channel between the piston 207 and the oil cavity 202, forming a damping effect, and the damping force and the spring 208 cooperate to suppress the reciprocating vibration caused by the impact.

[0047] Embodiment 2

[0048] Please refer to Figures 1-5As shown, the embodiment is based on the anti-impact structure two 300 further comprising the rubber ring 301 inside the left valve bowl cavity 101 and the right valve bowl cavity 102, one end of the rubber ring 301 is provided with the spring two 302, one end of the spring two 302 is provided with the support ring 303 connected with the inner wall of the left valve bowl cavity 101 and the right valve bowl cavity 102;

[0049] One end of the rubber ring 301 is provided with the rubber sleeve 304 located inside the spring two 302 and connected with one end of the support ring 303;

[0050] The use of the anti-impact structure two 300 is carried out;

[0051] When the high-pressure fluid enters the left valve bowl cavity 101 or the right valve bowl cavity 102, the left valve bowl body 105 or the right valve bowl body 106 is pushed to compress the rubber ring 301 and the spring two 302, the rubber ring 301 is deformed to absorb the instantaneous impact force, the spring two 302 provides linear buffering to avoid hard contact between the valve bowl body and the cavity wall, after the pressure is released, the spring two 302 pushes the valve bowl body to reset, the rubber sleeve 304 limits the deviation of the spring two 302, ensures the reset accuracy, the rubber ring 301 and the spring two 302 are combined to absorb energy, the rubber sleeve 304 prevents deviation, avoids the collision between the valve bowl body and the cavity wall, reduces the reversing jamming rate, is suitable for the unit with large heating demand in cold regions, and improves the liquid beating strength compared with the conventional environment.

[0052] In the description of the utility model, need explanation further, unless have explicit provision and limitation, term '' set '', '' install '', '' link '', '' connection '' should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electric connection, can be directly connected, also can indirectly connect through intermediate medium, can be two elements inside the intercommunication. For ordinary skilled person in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0053] Finally, it should be pointed out that: the above-mentioned only for the preferred embodiment of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. Anti-liquid-compression four-way valve, characterized in that: The valve body (100), the anti-impact structure one (200) and the anti-impact structure two (300), The valve body (100) comprises a valve seat (107) on the inner wall of the valve body (100), a valve block (103) slidingly installed on the upper end of the valve seat (107), a U-shaped valve pipe (104) embeddedly installed in the valve block (103), a left valve bowl body (105) and a right valve bowl body (106) fixedly arranged at the two ends of the valve block (103). The anti-impact structure one (200) comprises a ring seat (206) fixedly arranged on the inner wall of the two openings of the U-shaped valve pipe (104), a stress block (201) located in the ring seat (206) and facing opposite directions, a spring one (208) fixedly arranged between the stress block (201) and the ring seat (206), and a lining plate (209) fixedly arranged on the inner wall of the U-shaped valve pipe (104).

2. The anti-liquid-compression-compressor four-way valve according to claim 1, characterized in that: The valve body (100) is provided with a left valve bowl cavity (101) and a right valve bowl cavity (102) at the two ends of the valve body (100), respectively, the left valve bowl body (105) slides with the inner wall of the left valve bowl cavity (101), and the right valve bowl body (106) slides with the inner wall of the right valve bowl cavity (102).

3. The anti-liquid-compression-compressor four-way valve according to claim 1, characterized in that: The outer wall of the stress block (201) is a conical surface, the inner walls of the upper and lower ends of the ring seat (206) are funnel-shaped, and the thickness of the funnel-shaped inner walls of the upper and lower ends of the ring seat (206) gradually decreases from the outside to the center.

4. The anti-liquid-compression-compressor four-way valve according to claim 1, characterized in that: The stress block (201) is provided with an oil cavity (202) in the inner part, the inner wall of the oil cavity (202) is embeddedly provided with a sliding sleeve (203), the inner part of the sliding sleeve (203) is slidingly provided with a connecting rod (204), the outer wall of one end of the connecting rod (204) is provided with a support strip (205) arranged in an annular array and connected with the inner wall of the ring seat (206), one end of the connecting rod (204) located in the oil cavity (202) is provided with a piston (207) slidingly installed in the inner part of the oil cavity (202), and a flow channel is arranged between the piston (207) and the inner wall of the oil cavity (202).

5. The anti-liquid-compression-compressor four-way valve according to claim 1, characterized in that: The anti-impact structure two (300) comprises a rubber ring (301) in the left valve bowl cavity (101) and the right valve bowl cavity (102), one end of the rubber ring (301) is provided with a spring two (302), and one end of the spring two (302) is provided with a support ring (303) connected with the inner wall of the left valve bowl cavity (101) and the right valve bowl cavity (102).

6. The anti-liquid-compression-compressor four-way valve according to claim 5, characterized in that: One end of the rubber ring (301) is provided with a rubber sleeve (304) located in the spring two (302) and connected with one end of the support ring (303).

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