Protective one-way valve for air conditioner

Abstract

The protective one-way valve for the air conditioner comprises a valve body and a valve element, a first conveying pipeline and a second conveying pipeline which are communicated are arranged in the valve body, and an inclined part is arranged between the first conveying pipeline and the second conveying pipeline. The valve element is fixed in the second conveying pipeline through a plurality of supporting ribs, a plurality of channels are formed in the second conveying pipeline, one end of the valve element extends to the inclined part and communicates with the inclined part, a plurality of conveying through holes are formed in the position, close to the inclined part, of the outer side of the valve element, and a sliding rod is slidably connected into the valve element; the first conveying pipeline of the protective one-way valve for the air conditioner conveys fluid to the pressure head, the fluid extrudes the pressure head and enables the pressure head to compress the pressure spring, the pressure head drives the sliding rod to move along the valve body so that the conveying through hole shielded by the pressure head can be opened, and therefore the fluid can enter the channel from the conveying through hole and continue to be conveyed along the channel and the second conveying pipeline; and normal work of the one-way valve is prevented from being affected by damp corrosion damage of the pressure spring caused by contact between the pressure spring and fluid.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner accessories technical field especially relates to a kind of air-conditioning protection type check valve. BACKGROUND

[0002] With the gradual improvement of people's living standards, air conditioner has become a kind of daily main consumer goods enters thousands of households, in air conditioner check valve is important spare part, check valve passes through the movement of its internal valve core, realizes internal liquid forward conduction and reverse cut-off function, the existing check valve is automatically reset to valve core by telescopic spring to realize the function of one-way conduction, but telescopic spring is generally exposed and contacted with fluid, without setting up the structure of protective telescopic spring makes telescopic spring easy to be damped and corroded and damaged, in turn, the telescopic ability of telescopic spring is affected and the normal work of check valve is affected. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a kind of air-conditioning protection type check valve's first delivery pipeline transports fluid to pressure head, fluid extrudes pressure head and makes pressure head compresses pressure spring, pressure head drives slide bar to move along valve body so that the delivery through-hole blocked by pressure head is opened, so fluid can enter channel from delivery through-hole and continue to transport along channel and second delivery pipeline, and avoid the contact between pressure spring and fluid, which leads to the corrosion and damage of pressure spring, and further affects the normal work of check valve.

[0004] A kind of air-conditioning protection type check valve, including valve body and valve core, the first delivery pipeline and the second delivery pipeline are provided in the valve body and are connected, and the first delivery pipeline and the second delivery pipeline are provided with inclined portion between, the valve core is fixed in the second delivery pipeline by multiple support ribs and forms multiple channels in second delivery pipeline, and one end of the valve core extends to the inclined portion and is communicated with the inclined portion, multiple delivery through-holes are provided on the position of the outer side of the valve core close to the inclined portion, slide bar is slidably connected in the valve core, one end of the slide bar towards the inclined portion is provided with pressure head, and the pressure head is connected with the inner side of the valve core by pressure spring, the other end of the slide bar is provided with linkage plate, and the linkage plate is provided with sealing plate that can correspond to close multiple channels.

[0005] Preferably, the diameter of the first delivery pipeline is smaller than the diameter of the second delivery pipeline, and the inclined portion is outwardly inclined from the first delivery pipeline to the second delivery pipeline.

[0006] Preferably, multiple support ribs are circumferentially uniformly arranged around the valve core, and multiple delivery through-holes are circumferentially uniformly arranged on the valve core, the valve core is a hollow structure, and the inner diameter of the valve core is greater than the outer diameter of the inclined portion.

[0007] Preferably, the pressing head is provided with a pressing surface parallel to the inclined part on the side opposite to the compression spring, the length of the pressing head is greater than the diameter of the conveying through hole, and a sealing ring is arranged around the pressing head.

[0008] Preferably, the valve core is provided with a support through hole on the side opposite to the inclined part, the slide rod is in sliding connection with the support through hole, and a sealing ring is arranged inside the support through hole.

[0009] Preferably, a plurality of sealing plates are uniformly arranged on the linkage plate, the size of the sealing plate is greater than the size of the channel, the sealing plate is connected with the linkage plate through a linkage block, and the sealing plate is provided with a pressing block on the side facing the valve core.

[0010] The air conditioner protection type check valve has the advantages that the valve body and the valve core are matched with each other, fluid is conveyed to the pressing head through the first conveying pipeline, the fluid extrudes the pressing head and makes the pressing head compress the compression spring, the pressing head drives the slide rod to move along the valve body, the conveying through hole blocked by the pressing head is opened, the fluid can enter the channel from the conveying through hole and continue to be conveyed along the channel and the second conveying pipeline, the compression spring is prevented from being corroded due to contact with the fluid, and the normal work of the check valve is affected. BRIEF DESCRIPTION OF DRAWINGS

[0011] FIG. 1 is a structural schematic view of the utility model; Fig. 1 FIG. 2 is a right side view of the utility model;

[0012] FIG. 3 is a structural schematic view of the valve core in the utility model; Fig. 2 FIG. 4 is a structural schematic view of the linkage plate in the utility model.

[0013] FIG. 5 is a structural schematic view of the sealing plate in the utility model. Fig. 3

[0014] FIG. 6 is a structural schematic view of the linkage block in the utility model. Fig. 4 In the drawing: 1 valve body, 2 valve core, 3 first conveying pipeline, 4 second conveying pipeline, 5 inclined part, 6 support rib, 7 channel, 8 conveying through hole, 9 slide rod, 10 pressing head, 11 compression spring, 12 linkage plate, 13 sealing plate, 14 sealing ring, 15 support through hole, 16 pressing block.

[0015] DETAILED DESCRIPTION

[0016] The utility model will be described further in combination with the drawings and specific embodiments, so as to more clearly understand the technical thought of the utility model.

[0017] As Figs. 1 to 4 ​​As shown in the figure, an air-conditioning protection type check valve comprises a valve body 1 and a valve core 2, the valve body 1 is provided with a first conveying pipeline 3 and a second conveying pipeline 4 in communication, an inclined part 5 is arranged between the first conveying pipeline 3 and the second conveying pipeline 4, the valve core 2 is fixed in the second conveying pipeline 4 through a plurality of support ribs 6 and forms a plurality of channels 7 in the second conveying pipeline 4, one end of the valve core 2 extends to the inclined part 5 and communicates with the inclined part 5, a plurality of conveying through holes 8 are arranged on the outer side of the valve core 2 close to the inclined part 5, a slide rod 9 is slidably connected in the valve core 2, one end of the slide rod 9 towards the inclined part 5 is provided with a pressure head 10, the pressure head 10 is connected with the inner side of the valve core 2 through a compression spring 11, the other end of the slide rod 9 is provided with a linkage plate 12, and the linkage plate 12 is provided with a sealing plate 13 capable of closing the plurality of channels 7.

[0018] The working principle of the air-conditioning protection type check valve is realized through mutual cooperation of the valve body 1 and the valve core 2. Figs. 1 to 4 As shown in the figure, the initial state is that the pressure head 10 abuts against the inclined part 5 and the pressure head 10 closes the conveying through hole 8, fluid is conveyed along the first conveying pipeline 3 to the pressure head 10, then the fluid extrudes the pressure head 10 and makes the pressure head 10 compress the compression spring 11, the pressure head 10 drives the slide rod 9 to move along the valve body 1 in the direction away from the inclined part 5, so that the conveying through hole 8 blocked by the pressure head 10 is opened, thus the fluid can enter the channel 7 from the conveying through hole 8, in addition, the slide rod 9 drives the linkage plate 12 and the sealing plate 13 to move in the direction away from the inclined part 5 when the slide rod 9 moves, so that the channel 7 blocked by the sealing plate 13 is opened, thus the fluid can continue to be conveyed along the channel 7 and the second conveying pipeline 4, if the fluid flows from the second conveying pipeline 4, at this time, the pressure head 10 abuts against the inclined part 5, the pressure head 10 closes the conveying through hole 8 and the sealing plate 13 closes the channel 7, so as to prevent the fluid from flowing in the reverse direction, compared with the traditional check valve, the air-conditioning protection type check valve sets the compression spring 11 in the valve core 2, and avoids the compression spring 11 from being contacted with the fluid, so that the compression spring 11 is not easily corroded and damaged due to damp, thereby affecting the normal work of the check valve.

[0019] Specifically, the diameter of the first conveying pipeline 3 is smaller than the diameter of the second conveying pipeline 4, and the inclined part 5 is outwardly inclined from the first conveying pipeline 3 to the second conveying pipeline 4, wherein the plurality of support ribs 6 are circumferentially uniformly arranged on the periphery of the valve core 2, the plurality of conveying through holes 8 are circumferentially uniformly arranged on the valve core 2, the valve core 2 is a hollow structure, and the inner diameter of the valve core 2 is greater than the outer diameter of the inclined part 5, wherein the pressure head 10 is provided with a pressure surface parallel to the inclined part 5 on the side opposite to the compression spring 11, the length of the pressure head 10 is greater than the diameter of the conveying through hole 8, and the periphery of the pressure head 10 is provided with a sealing ring 14. Figs. 1 to 4As shown, the pressing surface of the pressing head 10 is in abutment with the inclined part 5 to close the first conveying pipeline 3, and the pressing head 10 is provided with a sealing ring 14 around the pressing head 10 to close the conveying through hole 8, thereby improving the sealing between the pressing head 10 and the valve core 2, so that the fluid does not contact the compression spring 11, the first conveying pipeline 3 conveys the fluid to the position of the pressing head 10, then the fluid extrudes the pressing head 10 and compresses the compression spring 11, the pressing head 10 drives the sliding rod 9 to move away from the valve body 1, so that the conveying through hole 8 blocked by the pressing head 10 is opened, and thus the fluid can enter the channel 7 from the conveying through hole 8.

[0020] Further, the side of the valve core 2 opposite to the inclined part 5 is provided with a supporting through hole 15, the sliding rod 9 is in sliding connection with the supporting through hole 15, and the inside of the supporting through hole 15 is provided with a sealing ring 14, and further, a plurality of the sealing plates 13 are uniformly arranged on the linkage plate 12, and the size of the sealing plate 13 is greater than the size of the channel 7, the sealing plate 13 is connected with the linkage plate 12 through a linkage block, and the side of the sealing plate 13 facing the valve core 2 is provided with a pressing block 16, as shown. Figs. 1 to 4 As shown, the sealing plate 13 blocks the channel 7 through the pressing block 16, and the sealing plates 13 are provided with a spacing for the fluid to pass through, when the sliding rod 9 moves away from the inclined part 5, the pressing block 16 is separated from the channel 7 and the channel 7 is opened, the fluid is conveyed along the channel 7 and the second conveying pipeline 4, when the fluid flows from the second conveying pipeline 4, the pressing block 16 blocks the channel 7 to prevent the fluid from entering the channel 7, and the linkage plate 12 blocks the supporting through hole 15, and the sealing ring 14 of the supporting through hole 15 improves the sealing between the sliding rod 9 and the valve core 2, so that the fluid does not contact the compression spring 11 and causes the compression spring 11 to be corroded and damaged by moisture.

[0021] The above is only a specific embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion according to the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. An air conditioning guard check valve characterized by: The utility model provides a valve, including valve body and valve core, the first delivery pipeline and the second delivery pipeline are arranged in the valve body and are connected, and the first delivery pipeline and the second delivery pipeline are provided with the inclined portion between, the valve core is fixed in the second delivery pipeline through a plurality of support ribs and forms a plurality of passages in the second delivery pipeline, and the valve core one end extends to the inclined portion and communicates with the inclined portion, the outer side of the valve core is provided with a plurality of delivery through -holes near the position of the inclined portion, the valve core is slidably connected with the slide bar, the slide bar one end towards the inclined portion is provided with the pressure head, and the pressure head is connected with the inner side of the valve core through the compression spring, the other end of the slide bar is provided with the linkage plate, and the linkage plate is provided with the sealing plate that can correspond to the plurality of passages.

2. The anti-shock check valve for air conditioning according to claim 1, wherein: The diameter of the first delivery pipeline is less than the diameter of the second delivery pipeline, and the inclined portion is outwardly inclined from the first delivery pipeline to the second delivery pipeline.

3. The anti-shock check valve for air conditioning according to claim 2, wherein: The plurality of support ribs are circumferentially and uniformly arranged around the valve core, and the plurality of delivery through-holes are circumferentially and uniformly arranged on the valve core.

4. The anti-shock check valve for air conditioning according to claim 3, wherein: The pressure head is provided with a pressure surface parallel to the inclined portion on the side facing away from the compression spring, the length of the pressure head is greater than the diameter of the delivery through-hole, and the valve core is provided with a sealing ring around the valve core.

5. An anti-shock check valve for use in an air conditioning system as defined in claim 4 wherein: The valve core is provided with a support through-hole on the side facing away from the inclined portion, the slide bar is slidably connected with the support through-hole, and the inner side of the support through-hole is provided with a sealing ring.

6. An anti-shock check valve for use in an air conditioning system as defined in claim 5 wherein: The plurality of sealing plates are circumferentially and uniformly arranged on the linkage plate, and the size of the sealing plate is greater than the size of the passage, the sealing plate is connected with the linkage plate through a linkage block, and the sealing plate is provided with a pressing block on the side facing the valve core.

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