Anti-reflux four-way valve of heat pump type air conditioner

Abstract

The utility model provides an anti-backflow four-way valve of a heat pump type air conditioner, which comprises a four-way pipe main body, four ends of the four-way pipe main body are respectively provided with a water flow channel, and the four water flow channels are communicated with one another. Anti-backflow assemblies are arranged in the water flow channel on the two sides of the water flow channel provided with the drainage assembly, the drainage assembly comprises a first drainage cylinder, a first spring and a second drainage cylinder, one end of the first spring is fixedly connected to the first drainage cylinder, and the other end of the first spring is fixedly connected to the second drainage cylinder. According to the scheme, a drainage assembly is arranged in one water flow channel, and anti-backflow assemblies are arranged in the water flow channels on the two sides of the water flow channel provided with the drainage assembly, so that water flow blocks a second limiting plate in a fourth cavity through a first limiting plate, a first sliding plate and a second spring in each anti-backflow assembly; therefore, the purpose of preventing water flow from flowing reversely is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to four -way valve equipment technical field, concretely is a heat pump type air conditioner anti -backflow four -way valve. BACKGROUND

[0002] With the pursuit of people to the quality of life and the improvement of energy conservation consciousness, as a kind of high -efficient, energy -conserving air conditioning system, heat pump type air conditioner has been more and more widely used in the market. Heat pump type air conditioner realizes the switching of refrigeration and heating mode through four -way reversing valve, can satisfy the demand of people in different seasons, improves the utilization rate and comfort of air conditioning.

[0003] In order to solve the backflow problem of traditional four -way reversing valve, improve the performance and reliability of heat pump type air conditioner, researchers begin to research and develop anti -backflow four -way valve. The design of anti -backflow four -way valve aims at preventing the backflow phenomenon of refrigerant in the reversing process by improving the structure and control mode of valve, ensuring the stable operation and high efficiency of system. UTILITY MODEL CONTENT

[0004] (I) the technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides a heat pump type air conditioner anti -backflow four -way valve, solves the problem proposed in the above background art.

[0006] (II) technical scheme

[0007] In order to realize the above object, the utility model is realized by the following technical scheme: a heat pump type air conditioner anti -backflow four -way valve, including four -way pipe main part, the four ends of four -way pipe main part are all set with water flow channel, four water flow channels are all interpenetrated, characterized in that: the water flow channel of one end is provided with drainage assembly, the water flow channel of the two sides of the water flow channel provided with drainage assembly is provided with anti -backflow assembly, the drainage assembly includes first drainage cylinder, first spring and second drainage cylinder, one end of the first spring is fixedly connected with the first drainage cylinder, the other end of the first spring is fixedly connected with the second drainage cylinder, the outer circular face of the first drainage cylinder is fixedly connected with the four -way pipe main part.

[0008] Preferably, the first drainage cylinder is provided with first cavity, the two end faces of the first drainage cylinder are all provided with first aperture, a plurality of guide plates are fixedly connected in the first cavity, the second drainage cylinder is provided with second cavity, the two ends of the second drainage cylinder are all provided with second aperture.

[0009] Preferably, the anti-backflow assembly comprises an anti-backflow cylinder and a second spring, one end of the anti-backflow cylinder is provided with a third cavity, the other end of the anti-backflow cylinder is provided with a fourth cavity, the third cavity and the fourth cavity are through, one end of the fourth cavity away from the third cavity is fixedly connected with a first limiting plate, a first sliding plate is slidably connected in the fourth cavity, one end of the second spring is fixedly connected with the first limiting plate, the other end of the second spring is fixedly connected with the first sliding plate.

[0010] Preferably, the first sliding plate is fixedly connected with a sliding cylinder, a plurality of flow guide grooves are formed in the outer circular surface of the sliding cylinder, and the second limiting plate is fixedly connected to one end of the sliding cylinder away from the first sliding plate.

[0011] Preferably, the radius of the second cavity near one end of the first spring is greater than the radius of the second cavity away from the other end of the first spring.

[0012] Preferably, the radius of the third cavity near one end of the fourth cavity is smaller than the radius of the third cavity away from the other end of the fourth cavity.

[0013] (Three) beneficial effects

[0014] The utility model provides a heat pump type air conditioner anti -backflow four way valve. Possess following beneficial effect:

[0015] 1, this scheme sets up the drainage assembly in one water flow channel, sets up the anti -backflow assembly in the water flow channel of the two sides of the water flow channel of setting up the drainage assembly mode, makes the water flow through the first limiting plate, first sliding plate and second spring in the anti -backflow assembly and blocks up the second limiting plate in the fourth cavity, thereby reaches the purpose that prevents the water flow from backflowing. ACCOUT OF DRAWINGS

[0016] Figure 1 It is the front view structure schematic drawing of the utility model;

[0017] Figure 2 It is the right view structure schematic drawing of the utility model;

[0018] Figure 3 It is Figure 2 The section structure schematic drawing of A-A in;

[0019] Figure 4 It is Figure 2 The section structure schematic drawing of B-B in.

[0020] In the figure: 11, four-way pipe body; 12, water flow channel; 13, first drainage cylinder; 14, first cavity; 15, first opening; 16, guide plate; 17, first spring; 18, second drainage cylinder; 19, second cavity; 20, second opening; 21, anti-backflow cylinder; 22, third cavity; 23, fourth cavity; 24, first limiting plate; 25, first sliding plate; 26, second spring; 27, sliding cylinder; 28, guide groove; 29, second limiting plate. DETAILED DESCRIPTION

[0021] The utility model embodiment provides a kind of heat pump type air conditioner anti-backflow four-way valve, as shown in Figures 1-4 It includes four-way pipe body 11, water flow channel 12, first drainage cylinder 13, first cavity 14, first opening 15, guide plate 16, first spring 17, second drainage cylinder 18, second cavity 19, second opening 20, anti-backflow cylinder 21, third cavity 22, fourth cavity 23, first limiting plate 24, first sliding plate 25, second spring 26, sliding cylinder 27, guide groove 28, second limiting plate 29.

[0022] As shown in Figures 1-4 Four ends of four-way pipe body 11 are provided with water flow channel 12, four water flow channels 12 are mutually penetrated, and drainage assembly is arranged in the water flow channel 12 of one end, anti-backflow assembly is arranged in the water flow channel 12 of the two sides of the water flow channel 12 where drainage assembly is arranged, drainage assembly includes first drainage cylinder 13, first spring 17 and second drainage cylinder 18, one end of first spring 17 is fixedly connected to first drainage cylinder 13, the other end of first spring 17 is fixedly connected to second drainage cylinder 18, and the outer circular surface of first drainage cylinder 13 is fixedly connected with four-way pipe body 11.

[0023] First cavity 14 is arranged in first drainage cylinder 13, first opening 15 is arranged in the two end surfaces of first drainage cylinder 13, a plurality of guide plates 16 are fixedly connected in first cavity 14, second cavity 19 is arranged in second drainage cylinder 18, and second opening 20 is arranged in the two ends of second drainage cylinder 18.The radius of one end of second cavity 19 close to first spring 17 is greater than the radius of one end of second cavity 19 away from first spring 17.

[0024] Anti-backflow assembly includes anti-backflow cylinder 21 and second spring 26, one end of anti-backflow cylinder 21 is provided with third cavity 22, the other end of anti-backflow cylinder 21 is provided with fourth cavity 23, third cavity 22 and fourth cavity 23 are penetrated, one end of fourth cavity 23 away from third cavity 22 is fixedly connected with first limiting plate 24, first sliding plate 25 is slidably connected in fourth cavity 23, one end of second spring 26 is fixedly connected to first limiting plate 24, and the other end of second spring 26 is fixedly connected to first sliding plate 25.

[0025] The first sliding plate 25 is fixedly connected with a sliding cylinder 27, a plurality of guide grooves 28 are formed in the outer circular surface of the sliding cylinder 27, the sliding cylinder 27 is fixedly connected with a second limiting plate 29 at the end away from the first sliding plate 25, and the radius of the third cavity 22 at the end close to the fourth cavity 23 is smaller than the radius of the third cavity 22 at the end away from the fourth cavity 23.

[0026] When the four-way valve is used to prevent backflow, firstly, water flows into the first cavity 14 from the second cavity 19 through the second opening 20, the guide plate 16 guides the water flow under the water flow pressure, and the water flow flows out from the first opening 15.

[0027] Then, the water flow flows from the end of the third cavity 22 away from the fourth cavity 23 to the end of the third cavity 22 close to the fourth cavity 23, the second limiting plate 29 is driven to move away from the first limiting plate 24 by the water flow, so that the water flow flows out from the end of the fourth cavity 23 away from the third cavity 22, and the first sliding plate 25 is driven to move by the second limiting plate 29 through the sliding cylinder 27, so that the second spring 26 is compressed.

[0028] Finally, when the water flow is reversed, the elastic potential energy of the second spring 26 is released, the second spring 26 drives the first sliding plate 25 to push the second limiting plate 29 to block the fourth cavity 23 through the sliding cylinder 27, so that the water flow is prevented from being reversed.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A heat pump type air conditioner anti-backflow four-way valve, comprising a four-way pipe main body (11), water flow channels (12) are formed in four ends of the four-way pipe main body (11), and the four water flow channels (12) are mutually penetrated, characterized in that: One end of the water flow channel (12) is provided with a drainage assembly, and the water flow channel (12) on both sides of the drainage assembly is provided with an anti-backflow assembly, the drainage assembly comprises a first drainage cylinder (13), a first spring (17) and a second drainage cylinder (18), one end of the first spring (17) is fixedly connected to the first drainage cylinder (13), the other end of the first spring (17) is fixedly connected to the second drainage cylinder (18), and the outer circular surface of the first drainage cylinder (13) is fixedly connected to the four-way tube body (11).

2. The heat pump type air conditioner anti-flow four-way valve according to claim 1, characterized in that: The first drainage cylinder (13) is provided with a first cavity (14), both end surfaces of the first drainage cylinder (13) are provided with first holes (15), and the first cavity (14) is fixedly connected with a plurality of guide plates (16).

3. The heat pump type air conditioner anti-flow four-way valve according to claim 2, characterized in that: The anti-backflow assembly comprises an anti-backflow cylinder (21) and a second spring (26), one end of the anti-backflow cylinder (21) is provided with a third cavity (22), the other end of the anti-backflow cylinder (21) is provided with a fourth cavity (23), the third cavity (22) and the fourth cavity (23) are in communication, one end of the fourth cavity (23) away from the third cavity (22) is fixedly connected with a first limiting plate (24), the fourth cavity (23) is slidably connected with a first sliding plate (25), one end of the second spring (26) is fixedly connected to the first limiting plate (24), and the other end of the second spring (26) is fixedly connected to the first sliding plate (25).

4. The heat pump type air conditioner anti-flow four-way valve according to claim 3, characterized in that: The first sliding plate (25) is fixedly connected with a sliding cylinder (27), a plurality of guide grooves (28) are formed in the outer circular surface of the sliding cylinder (27), and one end of the sliding cylinder (27) away from the first sliding plate (25) is fixedly connected with a second limiting plate (29).

5. The heat pump type air conditioner anti-flow four-way valve according to claim 2, characterized in that: The radius of one end of the second cavity (19) close to the first spring (17) is greater than the radius of the other end of the second cavity (19) away from the first spring (17).

6. The heat pump type air conditioner anti-flow four-way valve according to claim 3, characterized in that: The radius of one end of the third cavity (22) close to the fourth cavity (23) is smaller than the radius of the other end of the third cavity (22) away from the fourth cavity (23).

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