Leakage-proof quick plug connector for water system

Abstract

The utility model provides a leakproof type quick plug connector for a water system, which relates to the technical field of pipeline plug connectors and comprises a connector shell, three pipelines are mounted on the inner wall of the connector shell, and three integral sealing rings are sleeved on the outer surface of each pipeline. According to the leakage-proof type quick plug connector for the water system, through the arrangement of the connector shell, the three integrated sealing rings, the hexagonal cap, the pipeline and the anti-disengaging clamping jaw and the adoption of a modified fiber polyamide resin technology, the leakage-proof type quick plug connector has the advantages of being small in expansion coefficient, high in strength, good in durability and the like, the problem of thermal expansion and cold contraction caused by cold and heat crossing is avoided, and therefore the problem of water leakage is avoided; a section of telescopic space is reserved in the connector shell, when the pipeline stretches out and draws back, the three integrated sealing rings and the anti-disengaging clamping jaws slide along with the pipeline, damage is avoided, meanwhile, after the pipeline is obliquely inserted, the three integrated sealing rings can firmly wrap the inner wall of the pipeline and the inner wall of the connector shell, and it is ensured that leakage does not occur.

Description

Technical Field

[0001] The utility model relates to a water system leak-proof quick plug-in connector, in particular to a water system leak-proof quick plug-in connector, belonging to the technical field of pipeline plug-in connectors. Background Art

[0002] With the development of social economy, water system air conditioners are increasingly entering thousands of households. Water system air conditioners are also called water-cooled air conditioners. They use hot and cold water for circulation and pass through indoor fan coils to achieve cooling or heating purposes.

[0003] A quick connector is disclosed in the Chinese patent application publication specification CN212178188U. The quick connector provided by the device has at least two sealing structures arranged between the connector seat and the connector core, which improves the sealing effect between the connector seat and the connector core, and can effectively prevent the leakage of emulsion due to poor sealing effect. At the same time, the improvement of the sealing effect can also prevent dust from entering the interior of the hydraulic system and prevent the interior of the hydraulic system from being contaminated.

[0004] However, during the implementation of the technical solution of the above patent, the internal components of the fixed joint are easily damaged when the water system pipes are alternately hot and cold, causing the pipes to shrink or expand, which may cause the pipes to fall off or damage the internal claws, rubber sealing rings, etc. due to extrusion. In addition, the single-layer sealing ring is prone to water leakage when the pipe is inserted obliquely. Oblique insertion operations are very common on actual construction sites, which are prone to leakage. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The purpose of the utility model is to provide a leak-proof quick-connect connector for a water system in order to solve the above-mentioned problems, so as to solve the problems in the prior art that the internal components of the fixed connector are easily damaged when the pipeline contracts or expands, and the single-layer sealing ring is prone to water leakage when the pipeline is inserted obliquely.

[0007] (II) Technical solution

[0008] The utility model is realized through the following technical scheme: a water system leak-proof quick-connect connector, comprising a connector shell, three pipes are installed on the inner wall of the connector shell, the outer surface of each of the pipes is sleeved with three common sealing rings, each of the three common sealing rings is adapted to the connector shell, one end surface of the three common sealing rings close to each other is fixedly connected with an anti-dropping claw, the three anti-dropping claws are respectively adapted to the three pipes, the outer surface of each of the pipes is sleeved with a hexagonal cap, and the three hexagonal caps are installed on the inner wall of the connector shell.

[0009] Furthermore, the outer surface of each hexagonal cap is fixedly connected with four limit blocks in a circular array, and the inner wall of the joint shell is provided with three groups of L-shaped guide grooves, each group of the L-shaped guide grooves has four in number and are in a circular array, and the L-shaped guide grooves are adapted to the limit blocks, and when installing the hexagonal cap, the limit blocks are inserted into the L-shaped guide grooves and rotated to prevent the limit blocks from falling off the L-shaped guide grooves.

[0010] The inner wall of each of the L-shaped guide grooves is provided with a limiting hole, and each of the limiting holes is adapted to a limiting block. When the limiting block is stuck in the limiting hole, the limiting block can be fixed, thereby fixing the hexagonal cap.

[0011] Preferably, a fixed baffle is fixedly connected to the outer surface of the connector housing. The provision of the fixed baffle ensures that the connector housing is fully fixed when subjected to force during assembly and production, and does not cause relative displacement, thereby avoiding the problem of loose insertion.

[0012] The utility model provides a leak-proof quick-connect connector for a water system, which has the following beneficial effects:

[0013] 1. The leak-proof quick-connect connector for the water system adopts a modified fiber polyamide resin process through the setting of a connector shell, three-piece sealing ring, hexagonal cap, pipe and anti-dropping claws. It has the characteristics of small expansion coefficient, high strength and good durability. It avoids the problem of thermal expansion and contraction caused by the crossover of hot and cold, thereby avoiding the problem of water leakage, and a retractable space is reserved in the connector shell. When the pipe is expanded and displaced, the three-piece sealing ring and the anti-dropping claw slide accordingly to avoid damage. At the same time, after the pipe is obliquely inserted, the three-piece sealing ring can firmly wrap the inner wall of the pipe and the connector shell to ensure that there will be no leakage.

[0014] 2. The leak-proof quick-connect connector for the water system fully considers the high requirements for the overall positioning of the radiant heating and cooling terminals such as radiant panels by setting a fixed baffle. The fixed baffle is added so that the connector shell is fully fixed when subjected to force during assembly and production, and no relative displacement occurs, thus avoiding the problem of loose connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the connector housing of the utility model;

[0017] Figure 3 It is a schematic diagram of the separate structure of the connector housing and the pipeline of the utility model.

[0018] Description of Reference Numerals

[0019] 1. Connector housing; 2. Three common sealing rings; 3. Hexagonal cap; 4. Pipe; 5. Limit block; 6. Anti-drop claw; 7. Fixed baffle; 8. Limit hole; 9. L-shaped guide groove. DETAILED DESCRIPTION

[0020] The embodiment of the utility model provides a leak-proof quick-connect connector for a water system.

[0021] See also Figure 1 , Figure 2 and Figure 3 , including a joint shell 1, three pipes 4 are installed on the inner wall of the joint shell 1, and the outer surface of each pipe 4 is sleeved with three common sealing rings 2. The three common sealing rings 2 are a three-layer waterproof setting to ensure that the three common sealing rings 2 can also firmly wrap the inner wall of the pipe 4 and the joint shell 1 after oblique insertion, and there will be no leakage. Each three-common sealing ring 2 is adapted to the joint shell 1, and the end faces of the three three-common sealing rings 2 close to each other are fixedly connected with anti-drop claws 6, and the three anti-drop claws 6 are respectively adapted to the three pipes 4. The outer surface of each pipe 4 is sleeved with a hexagonal cap 3, and the three hexagonal caps 3 are installed on the inner wall of the joint shell 1. The joint shell 1, the three common sealing rings 2 and the hexagonal caps 3 adopt a modified fiber polyamide resin process, which has the characteristics of small expansion coefficient, high strength, good durability, etc., avoiding the thermal expansion and contraction problems caused by the crossover of cold and hot, thereby avoiding the problem of water leakage.

[0022] The outer surface of each hexagonal cap 3 is fixedly connected with four limit blocks 5 in a circular array, and a retractable space is reserved between the three-way common sealing ring 2 and the limit block 5. When the pipe 4 is telescopically displaced, the three-way common sealing ring 2 and the anti-drop claw 6 slide accordingly to avoid damage. The inner wall of the joint shell 1 is provided with three groups of L-shaped guide grooves 9, and each group of L-shaped guide grooves 9 has four in number and is in a circular array. The L-shaped guide grooves 9 are adapted to the limit blocks 5. When the hexagonal cap 3 is installed, the limit blocks 5 are inserted into the L-shaped guide grooves 9 and rotated to prevent the limit blocks 5 from falling off the L-shaped guide grooves 9. The inner wall of each L-shaped guide groove 9 is provided with a limit hole 8, and each limit hole 8 is adapted to the limit block 5. When the limit block 5 is stuck in the limit hole 8, the limit block 5 can be fixed, thereby fixing the hexagonal cap 3. The design of the hexagonal cap 3 and the limit hole 8 ensures simple disassembly and prevents loosening and falling off.

[0023] The outer surface of the connector housing 1 is fixedly connected with a fixed baffle 7. The setting of the fixed baffle 7 ensures that the connector housing 1 is fully fixed when subjected to force during assembly and production, and does not cause relative displacement, thereby avoiding the problem of loose insertion.

[0024] When the utility model is used, the hexagonal cap 3 is first inserted into the outside of the pipe 4, and then the three-way common sealing ring 2 and the anti-dropping claw 6 are inserted into the outside of the pipe 4. According to the setting of the anti-dropping claw 6, the three-way common sealing ring 2 and the anti-dropping claw 6 cannot be pulled out from the opposite direction of the insertion into the pipe 4. When the pipe 4 is inserted into the joint housing 1, the anti-dropping claw 6 and the three-way common sealing ring 2 are inserted in sequence, and when the hexagonal cap 3 is inserted into the joint housing 1, the limit block 5 is inserted along the L-shaped guide groove 9 and rotated, so that the limit block 5 is stuck in the pipe 4. The hexagonal cap 3 is in the limiting hole 8, so that the hexagonal cap 3 cannot fall off. When the pipe 4 moves outward, the pipe 4 will drive the anti-dropping claw 6 and the three-way common sealing ring 2 to move, and the hexagonal cap 3 will prevent the three-way common sealing ring 2 and the anti-dropping claw 6 from moving out of the joint shell 1. A retractable space is reserved between the three-way common sealing ring 2 and the hexagonal cap 3. When the pipe 4 is telescopically displaced, the three-way common sealing ring 2 and the anti-dropping claw 6 slide accordingly to avoid damage. The device avoids the thermal expansion and contraction problem caused by the cross-over of hot and cold, thereby avoiding water leakage problems.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A leakproof quick-connect connector for a water system, comprising a connector housing (1), characterized in that: Three pipes (4) are installed on the inner wall of the joint housing (1), and the outer surface of each pipe (4) is sleeved with three common sealing rings (2); Each of the three common sealing rings (2) is matched with the joint housing (1); one end surface of the three common sealing rings (2) close to each other is fixedly connected with an anti-dropping claw (6); the three anti-dropping claws (6) are respectively matched with three pipes (4); the outer surface of each pipe (4) is sleeved with a hexagonal cap (3); and the three hexagonal caps (3) are installed on the inner wall of the joint housing (1).

2. A water system leakproof quick-connect connector according to claim 1, characterized in that: The outer surface of each hexagonal cap (3) is fixedly connected to four limit blocks (5) arranged in a circumferential array, and the inner wall of the joint housing (1) is provided with three groups of L-shaped guide grooves (9), each group of the L-shaped guide grooves (9) has four L-shaped guide grooves (9) arranged in a circumferential array, and the L-shaped guide grooves (9) are adapted to the limit blocks (5).

3. A water system leakproof quick-connect connector according to claim 2, characterized in that: A limiting hole (8) is provided on the inner wall of each L-shaped guide groove (9), and each limiting hole (8) is matched with a limiting block (5).

4. A water system leakproof quick-connect connector according to claim 1, characterized in that: A fixed baffle (7) is fixedly connected to the outer surface of the joint housing (1).

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