Drip-proof quick-plug connector

Abstract

The utility model relates to a drip-proof quick-plug type connector, which comprises a quick-plug valve male end and a quick-plug valve female end, the quick-plug valve female end is provided with a through hole matched with the quick-plug valve male end, and two ends of the through hole are respectively provided with a sealing structure. And an air inlet and a water suction port which are used for connecting the through hole with the outside are formed between the two sealing structures at the quick plug valve female end. Compared with the prior art, two seals are designed at the female end of the quick-plug valve, the situation that the quick-plug connector is closed for water passing and water leakage occurs is prevented, the pressure bearing capacity of the quick-plug connector is enhanced, residual water in the quick-plug valve can be pulled away, water remaining in a pipe is prevented from flowing out, and water drops are prevented from dripping out in the disengagement process of the quick-plug connector.

Description

TECHNICAL FIELD

[0001] The utility model relates to water joint technical field especially is related to a kind of anti-dripping quick plug joint. BACKGROUND

[0002] Current market quick plug water joint generally adopts primary sealing, there is the risk of water leakage, and when quick plug joint is pulled out water pipe, there is the defect that residual water in pipe will flow out, will cause security risk. INVENTION CONTENTS

[0003] The utility model aims at overcoming the defects of insufficient sealing performance and residual water in pipe flowing out when pulling out water pipe in the prior art, and provides an anti-dripping quick plug joint.

[0004] The utility model can be realized by the following technical solutions:

[0005] An anti-dripping quick plug joint, the joint includes quick plug valve male end and quick plug valve female end, the quick plug valve female end has a through hole matched with the quick plug valve male end, two ends of the through hole are respectively provided with sealing structures,

[0006] The quick plug valve female end is provided with an air inlet and a water suction port connected with the through hole and the outside between two sealing structures.

[0007] As a preferred technical solution, the sealing structure provided on the quick plug valve female end is a sealing ring structure, including a first sealing ring located away from one end of the quick plug valve male end and a second sealing ring located close to the end of the quick plug valve male end.

[0008] As a preferred technical solution, when the quick plug joint is closed, the outer surface of the quick plug valve male end is sealed with the first sealing ring and the second sealing ring.

[0009] As a preferred technical solution, when the quick plug joint is closed, the quick plug valve male end extends out of the through hole of the quick plug valve female end.

[0010] As a preferred technical solution, the quick plug valve male end is in a stepped shape, and the cross section of the side close to the quick plug valve female end is smaller than that of the side away from the quick plug valve female end.

[0011] As a preferred technical solution, the inside of the through hole of the quick plug valve female end is in a stepped shape matched with the quick plug valve male end.

[0012] As a preferred technical solution, the quick plug valve male end is provided with a controllable valve on the pipeline opposite to the quick plug valve female end.

[0013] As a preferred technical solution, the female end of the quick-connect valve is provided with a controllable valve on the pipe on the side opposite to the male end of the quick-connect valve.

[0014] As a preferred technical solution, the male end and the female end of the quick-connect valve are each provided with a controllable valve on the pipe on the opposite side of the other.

[0015] As a preferred technical solution, the anti-drip quick-connect connector is composed of two or more pairs of matching quick-connect valve male ends and quick-connect valve female ends.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1) This utility model is designed with a water inlet and an air inlet at the female end of the quick-connect valve, which can remove the residual water in the quick-connect valve. The negative pressure water suction method is used to prevent the water remaining in the pipe from flowing out and to avoid water dripping out during the disengagement of the quick-connect connector.

[0018] 2) The quick-connect valve female end of this utility model is designed with two seals to prevent water leakage when the quick-connect joint is closed, and to enhance the pressure resistance of the quick-connect joint. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a drip-proof quick-connect connector according to the present invention;

[0020] Figure 2 This is a schematic diagram of the drip-proof quick-connect connector of this utility model when it is closed to half its stroke.

[0021] Figure 3 This is a schematic diagram of the drip-proof quick-connect connector of this utility model when fully closed.

[0022] Figure 4 This is a schematic diagram of the state of the anti-drip quick-connect connector of this utility model when it is disengaged to half its stroke.

[0023] The numbers in the diagram indicate: 1. Quick-connect valve male end, 2. Quick-connect valve female end, 21. Air inlet, 22. Water inlet, 3. First sealing ring, 4. Second sealing ring, 5. Controllable valve. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] Example 1

[0028] This utility model addresses the shortcomings of existing quick-connect water connectors, such as the risk of leakage and the outflow of water remaining in the pipe when the water pipe is pulled out. The quick-connect connector includes:

[0029] The quick-connect valve male end 1 serves as the outlet pipe connector, connecting to the user's end.

[0030] The female end 2 of the quick-connect valve serves as the water inlet pipe connector. It is designed with an air inlet 21 and a water suction inlet 22. When the controllable valve 5 is opened, hot water flows from the female end 2 of the quick-connect valve to the male end 1 of the quick-connect valve.

[0031] Controllable valve 5: Used for water circuit on / off control. It can be installed on one or both sides of the quick-connect valve. After the quick-connect valve is closed by the secondary seal, the controllable valve 5 opens, and water flows through the circuit.

[0032] Specifically, such as Figure 2 As shown, the female end 2 of the quick-connect valve has a through hole that matches the male end 1 of the quick-connect valve. Sealing structures, specifically sealing ring structures, are provided at both ends of the through hole, including a first sealing ring 3 located away from the male end 1 and a second sealing ring 4 located closer to the male end 1. The sealing rings are made of rubber and possess elastic recovery properties. The rubber material has good corrosion resistance, maintains good mechanical strength at room temperature, and has a long service life. An air inlet 21 and a water suction port 22, connecting the through hole to the outside, are located between the two sealing structures of the female end 2 of the quick-connect valve.

[0033] Optionally, the male end 1 of the quick-connect valve is stepped, with the cross-section on the side closer to the female end 2 being smaller than that on the side farther from the female end 2. The inner side of the through hole of the female end 2 is stepped to match the male end 1.

[0034] like Figure 3 As shown, when the quick-connect valve male end 1 reaches the first sealing ring 3 for a second seal, the outer surface of the quick-connect valve male end 1 fits against the first sealing ring 3 and the second sealing ring 4, the two quick-connect valves complete the seal, the controllable valve 5 opens, and hot water flows from the quick-connect valve female end 2 to the quick-connect valve male end 1.

[0035] likeFigure 4 As shown, the quick-connect coupling is disengaged: both controllable valves 5 are closed, and the male end 1 of the quick-connect valve moves away from the female end 2 of the quick-connect valve to disengage. When the male end 1 of the quick-connect valve disengages from the first sealing ring but not from the second sealing ring 4, the water remaining in the pipe wall of the male / female end of the quick-connect valve can be drawn away through the water suction port 22, and then air is introduced through the air inlet 21 to stabilize the pressure and ensure that there is no residual water in the water pipe. When the female end 2 of the quick-connect valve disengages from the second sealing ring 4, the male / female end of the quick-connect valve is completely disengaged.

[0036] Through the above-described configuration, this utility model can achieve the following effects:

[0037] There is no leakage when the parts are joined. When the male end 1 of the quick-connect valve moves to the female end 2 of the quick-connect valve, the two sealing rings fit together completely and seal, and the automatic valve opens to allow water to flow without leakage.

[0038] There is no dripping after disconnection. The automatic valve closes, and the male end 1 of the quick-connect valve moves away from the female end 2 of the quick-connect valve, disconnecting from the first sealing ring but not from the second sealing ring. After the water inlet draws away the water pipe and the water remaining in the quick-connect valve, it disconnects from the second sealing ring. No water droplets appear on the quick-connect connector or there are no visible water droplets.

[0039] Example 2

[0040] As another embodiment of this utility model, the quick-connect connector can be composed of two or more pairs of quick-connect valve male ends 1 and quick-connect valve female ends 2 that are matched with each other as described in the above embodiment.

[0041] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A drip-tight quick- connect fitting, characterized by, The joint comprises a male quick plug valve (1) and a female quick plug valve (2), the female quick plug valve (2) has a through hole matched with the male quick plug valve (1), and the through hole is provided with sealing structures at both ends, The female quick plug valve (2) is provided with an air inlet (21) and a water suction port (22) connected with the through hole and the outside between the two sealing structures.

2. A quick- coupling connector according to claim 1, wherein The sealing structure of the female quick plug valve (2) is a sealing ring structure, which comprises a first sealing ring (3) located away from the male quick plug valve (1) and a second sealing ring (4) located close to the male quick plug valve (1).

3. A quick- coupling connector according to claim 2, wherein When the anti-dripping quick plug joint is closed, the outer surface of the male quick plug valve (1) is in close contact with the first sealing ring (3) and the second sealing ring (4).

4. A quick- coupling connector according to claim 3, wherein When the anti-dripping quick plug joint is closed, the male quick plug valve (1) extends out of the through hole of the female quick plug valve (2).

5. A quick -mount connector according to claim 1, wherein, The male quick plug valve (1) is in a stepped shape, and the cross section of the side of the male quick plug valve (1) close to the female quick plug valve (2) is smaller than that of the side away from the female quick plug valve (2).

6. A quick -mount connector according to claim 5, wherein the sealing member is a sealing ring. The inner side of the through hole of the female quick plug valve (2) is in a stepped shape matched with the male quick plug valve (1).

7. A quick -mount connector according to claim 1, wherein, The male quick plug valve (1) is provided with a controllable valve (5) on the pipeline opposite to the female quick plug valve (2).

8. A quick -mount connector according to claim 1, wherein, The female quick plug valve (2) is provided with a controllable valve (5) on the pipeline opposite to the male quick plug valve (1).

9. A quick -mount connector according to claim 1, wherein, The male quick plug valve (1) and the female quick plug valve (2) are each provided with a controllable valve (5) on the pipeline opposite to each other.

10. A quick- coupling connector according to any one of claims 1 to 9, wherein The anti-dripping quick plug joint is composed of two pairs or more pairs of matched male quick plug valves (1) and female quick plug valves (2).

Images