A four-way valve elbow assembly

Abstract

The utility model relates to four -way valve technical field discloses a kind of four-way valve elbow pipe assemblies, including one end with the elbow pipe body of four-way valve valve body upper side connection, be set at the flared end of elbow pipe body far from four-way valve valve body one end, further include the asbestos board for the heat generated when isolating welding of being set on elbow pipe body, side of asbestos board integrally is provided with connecting lug, connecting lug is provided with the through hole for flared end to pass through, waist-shaped hole for the straight pipe of four-way valve valve body lower side to pass through is also provided in the middle of asbestos board.When the elbow pipe body and straight pipe of four-way valve valve body are welded and installed, the heat insulation function of asbestos board can effectively isolate high temperature and high heat generated when welding, thereby protecting four-way valve valve body.

Description

Technical Field

[0001] This utility model belongs to the field of four-way valve technology, and specifically relates to a four-way valve bend assembly. Background Technology

[0002] The four-way valve is an indispensable component in refrigeration equipment. Its working principle is that when the solenoid valve coil is de-energized, the pilot slide valve moves to the left under the drive of the compression spring on the right. The high-pressure gas enters the capillary tube and then enters the piston chamber at the right end. On the other hand, the gas in the piston chamber at the left end is discharged. Due to the pressure difference between the two ends of the piston, the piston and the main slide valve move to the left, so that the exhaust pipe is connected to the outdoor unit pipe and the other two pipes are connected, forming a refrigeration cycle.

[0003] Currently, Chinese patent publication number CN216522073U, published on May 13, 2022, discloses an outdoor unit of an air conditioner, including: a compressor having an inlet and an outlet; an outdoor heat exchanger; outdoor piping; and a four-way valve assembly. The four-way valve assembly includes: a four-way valve and a shock absorber. The four-way valve has a first interface pipe, a second interface pipe, a third interface pipe, and a fourth interface pipe. The first interface pipe is connected to the inlet, the second interface pipe is connected to the outlet, the third interface pipe is connected to the outdoor heat exchanger, the fourth interface pipe is connected to the outdoor piping, and the shock absorber is disposed on the second interface pipe.

[0004] This type of air conditioner outdoor unit has a shock-absorbing block on the four-way valve assembly. The shock-absorbing block can adjust the natural frequency of the four-way valve, so that the natural frequency of the four-way valve assembly can be deviated from the natural frequency of the compressor. This avoids abnormal pipe vibration and noise caused by resonance, which could lead to system failure and make the use of the four-way valve assembly safer and more reliable.

[0005] The second interface pipe is connected to the upper side of the four-way valve body and is a bent pipe; meanwhile, the first, third, and fourth interface pipes are connected to the lower side of the four-way valve body and are straight pipes.

[0006] In the prior art, when it is necessary to install and connect the bend and three straight pipes of a four-way valve, welding is usually used to improve the sealing of the installation. However, since the welding position of the bend and straight pipes is close to the valve body, and the valve body of the four-way valve mostly contains plastic parts that are not resistant to high temperatures, the high temperature of welding may affect these plastic parts during the welding process, which is not conducive to protecting the valve body of the four-way valve. Utility Model Content

[0007] The purpose of this invention is to provide a four-way valve bend assembly that can help isolate the high temperature and heat generated during welding.

[0008] The above technical object of the present utility model is achieved through the following technical solutions: A four-way valve elbow assembly includes an elbow body connected to the upper side of the four-way valve body at one end, a flared end provided at the end of the elbow body far from the four-way valve body, and further includes an asbestos board provided on the elbow body and used to isolate the heat generated during welding. A connecting ear is integrally provided at the side of the asbestos board, and a through hole for the flared end to pass through is provided in the connecting ear. A kidney-shaped hole for the straight pipe on the lower side of the four-way valve body to pass through is also provided in the middle of the asbestos board.

[0009] A further setting of the present utility model is: A protective cover is provided below the kidney-shaped hole and the through hole, and a breakable tearing tape is provided at the connection position between the protective cover and the asbestos board.

[0010] A further setting of the present utility model is: An interference fit is provided between the through hole and the flared end.

[0011] A further setting of the present utility model is: Extension plates are provided at both ends on the upper side of the asbestos board.

[0012] A further setting of the present utility model is: When the asbestos board is moved upward along the elbow body to the lower side position of the four-way valve body, the extension plate abuts against the end face of the four-way valve body.

[0013] A further setting of the present utility model is: The extension plate is in a "C" shape.

[0014] In summary, the present utility model has the following beneficial effects:

[0015] 1. The asbestos board uses the through hole on the connecting ear for the flared end of the elbow body to pass through, and at the same time uses the kidney-shaped hole for the straight pipe on the lower side of the four-way valve body to pass through. At this time, the asbestos board can be moved upward to the lower side position of the four-way valve body; when the four-way valve body is in a working state, since the asbestos board itself is a porous structure, it has a sound-absorbing function, which is beneficial to absorbing the noise pollution generated in the nearby area; and when the elbow body and the straight pipe of the four-way valve body are welded and installed, the heat-insulating function of the asbestos board can effectively isolate the high temperature and heat generated during welding, thereby protecting the four-way valve body.

[0016] 2. When the four-way valve body is produced, formed, packaged, transported and sold, the asbestos board is located at the height position of the flared end. At this time, the protective cover below the kidney-shaped hole and the through hole can be used to wrap and protect the flared end of the elbow body and the lower end of the straight pipe, avoiding deformation caused by bumps during transportation; at the same time, using the breakable tearing tape provided at the connection position between the protective cover and the asbestos board, when the four-way valve body needs to be installed and fixed, the protective cover below the kidney-shaped hole and the through hole can be quickly disassembled along the breakable tearing tape.

[0017] 3. When the asbestos board is at the height position of the flared end, an interference fit is utilized between the through hole and the flared end, so that the position of the asbestos board can be limited by the frictional force between the through hole and the outer wall of the flared end;

[0018] 4. Extension plates are provided at both ends on the upper side of the asbestos board. After the asbestos board moves upward, the extension plates can wrap around both ends of the four-way valve body, which is beneficial to the wrapping and protection of both ends of the four-way valve body;

[0019] 5. When the asbestos board moves upward along the bent pipe body to the lower side position of the four-way valve body, the extension plates are used to press tightly against the end face of the four-way valve body. Through the frictional force between the extension plates and the end face of the four-way valve body, it is beneficial to the stable installation of the asbestos board on the lower side of the four-way valve body;

[0020] 6. The extension plates are in a "C" shape, which is beneficial to the wrapping and protection of both ends of the four-way valve body by the extension plates. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the present invention when combined with the four-way valve body.

[0025] In the figure, 1, bent pipe body; 11, flared end; 2, asbestos board; 21, connecting ear; 22, through hole; 23, kidney-shaped hole; 24, extension plate; 3, protective cover; 31, breakable tear strip; 4, four-way valve body; 5, straight pipe. Detailed Embodiment

[0026] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] A four-way valve bent pipe assembly, referring to Figure 1 、 Figure 2 、 Figure 3 , the four-way valve elbow component includes an elbow body 1 welded and fixed to the upper side of the four-way valve body 4 at one end, a flared end 11 integrally provided at the end of the elbow body 1 far from the four-way valve body 4, and an asbestos board 2 provided on the elbow body 1 and used to isolate the heat generated during welding. A connecting ear 21 is integrally provided at the side of the asbestos board 2, and a through hole 22 for the flared end 11 to pass through is provided in the connecting ear 21, and the through hole 22 and the flared end 11 are in interference fit. At the same time, a kidney-shaped hole 23 for three straight pipes 5 on the lower side of the four-way valve body 4 to pass through is provided in the middle of the asbestos board 2, and a protective cover 3 is integrally provided below the kidney-shaped hole 23 and the through hole 22. A breakable tear strip 31 is provided at the connection position between the protective cover 3 and the asbestos board 2.

[0028] Refer to Figure 1 , Figure 3 , extension plates 24 are integrally provided at both ends on the upper side of the asbestos board 2, and the extension plates 24 are in an inverted U shape; when the asbestos board 2 is moved upward along the elbow body 1 to the lower side position of the four-way valve body 4, the extension plates 24 abut against the end face of the four-way valve body 4.

[0029] Principle: The asbestos board 2 uses the through hole 22 on the connecting ear 21 for the flared end 11 of the elbow body 1 to pass through, and at the same time uses the kidney-shaped hole 23 for the straight pipes 5 on the lower side of the four-way valve body 4 to pass through. At this time, the asbestos board 2 can be moved upward to the lower side position of the four-way valve body 4, and the extension plates 24 are used to abut against the end face of the four-way valve body 4; when the four-way valve body 4 is in a working state, since the asbestos board 2 itself has a porous structure, it has a sound absorption function, which is beneficial to absorbing the noise pollution generated in the nearby area; when the elbow body 1 and the straight pipes 5 of the four-way valve body 4 are welded and installed, the heat insulation function of the asbestos board 2 can effectively isolate the high temperature and heat generated during welding, thereby protecting the four-way valve body 4;

[0030] When the four-way valve body 4 is produced, formed, packaged, transported and sold, the asbestos board 2 is located at the height position of the flared end 11. At this time, the protective cover 3 below the kidney-shaped hole 23 and the through hole 22 can be used to wrap and protect the flared end 11 of the elbow body 1 and the lower ends of the straight pipes 5, avoiding deformation caused by bumps during transportation; at the same time, using the breakable tear strip 31 provided at the connection position between the protective cover 3 and the asbestos board 2, when the four-way valve body 4 needs to be installed and fixed, the protective cover 3 below the kidney-shaped hole 23 and the through hole 22 can be quickly disassembled along the breakable tear strip 31.

Claims

1. A four-way valve bend assembly, comprising a bend body (1) connected at one end to the upper side of a four-way valve body (4), and a flared end (11) disposed at the end of the bend body (1) away from the four-way valve body (4), characterized in that: It further includes an asbestos board (2) disposed on the elbow body (1) and used for insulating the heat generated during welding. A connecting ear (21) is integrally provided at the side of the asbestos board (2). A through hole (22) for the flared end (11) to pass through is formed in the connecting ear (21). A kidney-shaped hole (23) for the straight pipe (5) at the lower side of the four-way valve body (4) to pass through is further formed in the middle of the asbestos board (2).

2. The four-way valve bend assembly according to claim 1, characterized in that: A protective cover (3) is provided below the kidney-shaped hole (23) and the through hole (22). A breakable tear strip (31) is provided at the connection position between the protective cover (3) and the asbestos board (2).

3. A four-way valve bend assembly according to claim 1, characterized in that: An interference fit is provided between the through hole (22) and the flared end (11).

4. A four-way valve bend assembly according to claim 1, characterized in that: Extension plates (24) are provided at both ends of the upper side of the asbestos board (2).

5. A four-way valve bend assembly according to claim 4, characterized in that: When the asbestos board (2) moves upward along the elbow body (1) to the lower side position of the four-way valve body (4), the extension plate (24) abuts against the end face of the four-way valve body (4).

6. A four-way valve bend assembly according to claim 4, characterized in that: The extension plate (24) is in an inverted U shape.

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