Air suction valve port structure for refrigeration compressor

Abstract

The air suction valve port structure comprises a valve shell and a valve port, the valve port is formed in the top of the valve shell, an inner threaded pipe is arranged in the valve port in a sleeved mode, and an outer threaded pipe is arranged at the position, close to the top, of the outer side of the valve shell in a sleeved mode. A first outer sealing ring and a second outer sealing ring are connected to the positions, close to the top, in the outer threaded pipe in a sleeved mode, the inner wall of the first outer sealing ring and the inner wall of the second outer sealing ring are attached to the outer wall of the inner threaded pipe, the bottom of the inner threaded pipe is connected with an inner sealing ring, and the outer wall of the inner sealing ring is attached to the inner wall of the valve port. According to the technical scheme, the first outer sealing ring, the second outer sealing ring, the inner sealing ring, the sealing ball piece, the clamping groove and other parts are matched with one another, so that effective sealing can be achieved, the situation of air leakage is not prone to occurring, the air guiding efficiency and the use efficiency of the air guiding device are improved, effective clamping can be achieved, and the service life of the air guiding device is prolonged. Therefore, the inner sealing ring is not easy to fall off, and the stability and firmness of the inner sealing ring are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigeration compressor technical field especially relates to a suction valve port structure for refrigeration compressor. BACKGROUND

[0002] During the operation of the compressor, the valve plate assembly, as an important part of completing the refrigeration cycle, is particularly important, and generally includes a valve plate, a suction valve plate and an exhaust valve plate. The valve plate is usually a powder metallurgy casting, and the high-precision suction and exhaust valve lines are formed by grinding. The suction valve plate and the exhaust valve plate are also made of metal.

[0003] The suction valve port structure for the refrigeration compressor disclosed in the application number 202121421982.3 solves the problem that the existing valve plate assembly valve plate has no suction port flow guide fillet or chamfer, resulting in large flow resistance, low suction efficiency, and difficulty in opening the existing suction valve plate. In each cycle of the compressor, it cannot suck more gas, affecting the refrigeration capacity of the compressor, and reducing the coefficient of performance of the compressor.

[0004] However, the above structure cannot be effectively sealed during use, which can cause gas leakage, reduce the gas guiding efficiency and use efficiency, and cannot be effectively clamped, which can cause the inner sealing ring to fall off, reduce the stability and firmness. Therefore, we propose a suction valve port structure for a refrigeration compressor. UTILITY MODEL CONTENTS

[0005] The utility model discloses a suction valve port structure for a refrigeration compressor, which can be effectively sealed, so that gas leakage is less likely to occur, improving the gas guiding efficiency and use efficiency, and can be effectively clamped, so that the inner sealing ring is less likely to fall off, improving the stability and firmness.

[0006] To achieve the above-mentioned purpose, a suction valve port structure for a refrigeration compressor is provided, which comprises a valve shell and a valve port. The valve port is provided on the top of the valve shell. An inner threaded pipe is sleeved in the valve port. An outer threaded pipe is sleeved on the outer side of the valve shell near the top. A first outer sealing ring and a second outer sealing ring are sleeved in the outer threaded pipe near the top. The inner walls of the first outer sealing ring and the second outer sealing ring are attached to the outer wall of the inner threaded pipe. An inner sealing ring is connected to the bottom of the inner threaded pipe, and the outer wall of the inner sealing ring is attached to the inner wall of the valve port.

[0007] According to the suction valve port structure for the refrigeration compressor, a plurality of uniformly distributed grooves are formed on the inner wall of the valve port close to the top, and a sealing ball is sleeved in the grooves, an arc spring is connected between the side wall of the sealing ball and the inner wall of the groove, and a plurality of uniformly distributed clamping grooves matched with the sealing ball are formed on the outer wall of the inner sealing ring.

[0008] According to the suction valve port structure for the refrigeration compressor, a first outer thread is formed on the outer wall of the inner threaded pipe, and a first inner thread matched with the first outer thread is formed on the inner wall of the valve port.

[0009] According to the suction valve port structure for the refrigeration compressor, a second inner thread is formed on the inner wall of the outer threaded pipe, and a second outer thread matched with the second inner thread is formed on the outer wall of the valve shell.

[0010] According to the suction valve port structure for the refrigeration compressor, a plurality of uniformly distributed elastic columns are connected to the bottom of the first outer sealing ring, and the bottom ends of the elastic columns are connected to the top of the second outer sealing ring.

[0011] According to the suction valve port structure for the refrigeration compressor, a plurality of uniformly distributed circular springs are connected to the bottom of the second outer sealing ring, and the bottom of the circular spring is attached to the top of the valve shell.

[0012] The above scheme has at least one of the following beneficial effects: the mutual cooperation between the first outer sealing ring, the second outer sealing ring, the inner sealing ring, the sealing ball and the clamping groove enables effective sealing, so that air leakage is less likely to occur, the air guiding efficiency and use efficiency are improved, and effective clamping is achieved, so that the inner sealing ring is less likely to fall off, and the stability and firmness are improved.

[0013] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present application will be further described below in conjunction with the drawings and embodiments;

[0015] Figure 1 is a front view of the present application;

[0016] Figure 2 is Figure 1 a cross-sectional structure schematic view;

[0017] Figure 3 is Figure 2 an enlarged view of A in

[0018] Figure 4 For Figure 1 Partial top view of the inner sealing ring and the clamping groove and other components.

[0019] Legend:

[0020] 1, valve shell; 2, outer threaded tube; 3, inner threaded tube; 4, first outer sealing ring; 5, second outer sealing ring; 6, elastic column; 7, circular spring; 8, valve port; 9, inner sealing ring; 10, clamping groove; 11, groove; 12, sealing ball; 13, arc spring leaf. DETAILED DESCRIPTION

[0021] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0022] Referring to Figures 1 to 4 , the utility model embodiment a kind of suction valve port structure for refrigeration compressor, it includes valve shell 1 and valve port 8, valve port 8 is arranged on the top of valve shell 1, inner threaded tube 3 is sleeved in valve port 8, first outer thread is opened on the outer wall of inner threaded tube 3, and first inner thread matched with first outer thread is opened on the inner wall of valve port 8, and outer threaded tube 2 is sleeved on the outside of valve shell 1 close to top, second inner thread is opened on the inner wall of outer threaded tube 2, and second outer thread matched with second inner thread is opened on the outer wall of valve shell 1, first outer sealing ring 4 and second outer sealing ring 5 are connected in outer threaded tube 2 close to top, and the inner wall of first outer sealing ring 4 and second outer sealing ring 5 is attached on the outer wall of inner threaded tube 3, inner sealing ring 9 is connected at the bottom of inner threaded tube 3, and the outer wall of inner sealing ring 9 is attached on the inner wall of valve port 8.

[0023] A plurality of evenly distributed grooves 11 are opened on the inner wall of valve port 8 close to top, and sealing ball 12 is sleeved in groove 11, arc spring leaf 13 is connected between the side wall of sealing ball 12 and the inner wall of groove 11, and a plurality of evenly distributed clamping grooves 10 matched with sealing ball 12 are opened on the outer wall of inner sealing ring 9. Through the structure, it can be effectively sealed, so that it is not easy to exist the case of air leakage, improve its air guiding efficiency and use efficiency.

[0024] The bottom of the first outer sealing ring 4 is connected with a plurality of elastic columns 6 which are uniformly distributed, and the bottom end of the elastic column 6 is connected to the top of the second outer sealing ring 5, the bottom of the second outer sealing ring 5 is connected with a plurality of circular springs 7 which are uniformly distributed, and the bottom of the circular spring 7 is attached to the top of the valve shell 1. Through the structure, it can be effectively clamped, so that the inner sealing ring 9 is not easy to fall off, and the stability and firmness are improved.

[0025] Working principle: when the technical scheme is used, first, rotate the inner threaded pipe 3 and the outer threaded pipe 2 in sequence, the inner threaded pipe 3 moves downward in the valve port 8, the inner threaded pipe 3 drives the inner sealing ring 9 to move downward and press the sealing ball piece 12 and the arc spring piece 13, then the sealing ball piece 12 enters into the clamping groove 10, so that it can be effectively clamped, so that the inner sealing ring 9 is not easy to fall off, and the stability and firmness are improved, so that it can be effectively clamped, so that the inner sealing ring 9 is not easy to fall off, and the stability and firmness are improved, the outer threaded pipe 2 moves downward outside the valve shell 1, so that the outer threaded pipe 2 drives the first outer sealing ring 4 and the second outer sealing ring 5 to move downward, so that the elastic column 6 and the circular spring 7 are in a compressed state, so that it can be effectively sealed, so that it is not easy to have the air leakage, and the air guiding efficiency and use efficiency are improved.

[0026] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, within the knowledge range possessed by ordinary skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A suction valve port structure for a refrigeration compressor, characterized in that, include: The valve housing (1) and valve port (8) are provided. The valve port (8) is located on the top of the valve housing (1). An internal threaded tube (3) is fitted inside the valve port (8). An external threaded tube (2) is fitted on the outside of the valve housing (1) near the top. A first external sealing ring (4) and a second external sealing ring (5) are fitted inside the external threaded tube (2) near the top. The inner walls of the first external sealing ring (4) and the second external sealing ring (5) are attached to the outer wall of the internal threaded tube (3). An internal sealing ring (9) is connected to the bottom of the internal threaded tube (3). The outer wall of the internal sealing ring (9) is attached to the inner wall of the valve port (8).

2. The suction valve port structure for a refrigeration compressor according to claim 1, characterized in that, The valve port (8) has several evenly distributed grooves (11) on its inner wall near the top, and a sealing ball (12) is fitted inside the groove (11). An arc-shaped spring (13) is connected between the side wall of the sealing ball (12) and the inner wall of the groove (11). The outer wall of the inner sealing ring (9) has several evenly distributed slots (10) that match the sealing ball (12).

3. The suction valve port structure for a refrigeration compressor according to claim 1, characterized in that, The outer wall of the internally threaded pipe (3) is provided with a first external thread, and the inner wall of the valve port (8) is provided with a first internal thread that matches the first external thread.

4. The suction valve port structure for a refrigeration compressor according to claim 1, characterized in that, The inner wall of the externally threaded pipe (2) is provided with a second internal thread, and the outer wall of the valve body (1) is provided with a second external thread that matches the second internal thread.

5. The suction valve port structure for a refrigeration compressor according to claim 1, characterized in that, The bottom of the first outer sealing ring (4) is connected to a plurality of evenly distributed elastic columns (6), and the bottom end of the elastic columns (6) is connected to the top of the second outer sealing ring (5).

6. The suction valve port structure for a refrigeration compressor according to claim 1, characterized in that, The bottom of the second outer sealing ring (5) is connected to several evenly distributed circular springs (7), and the bottom of the circular springs (7) is attached to the top of the valve body (1).

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