Quick plug connector with one-way cut-off function

Abstract

The utility model discloses a quick connector with a one-way cut-off function, which comprises an outer shell, a liquid inlet is arranged at the top end of the outer shell, a liquid outlet is arranged at the other end of the outer shell, an inner shell is fixedly connected with an inner cavity of the outer shell, and a first bulge is arranged at one end of the inner shell. When water flow enters the inner shell through the outer shell, the locking assembly is driven to slide in the water flow direction through water flow and pressure impact, so that the whole system is driven to circulate, when maintenance is needed, the quick connector and liquid in the second pipeline and the third pipeline are pulled out, the water flow is prevented from flowing through the locking assembly, and the effect of preventing the liquid from flowing out is achieved. According to the quick connector, liquid backflow can be prevented while the quick connector is conveniently installed, liquid leakage caused when the quick connector is pulled out is avoided, and quick maintenance is achieved under the condition that liquid is not discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling systems, in particular to a quick-plug connector with a one-way cut-off function. Background Art

[0002] With the rapid development of information technology, the expansion of data center business volume and the increase in power density, liquid cooling has become a new technology for data center refrigeration. In the liquid cooling system, quick connectors are used on the external pipes connecting the liquid cooling system and the server. When the liquid cooling system needs to be inspected and maintained, there is no need to disassemble the external pipe. The external pipe can be connected or disconnected by directly plugging and unplugging the quick connector. During the plugging and unplugging process, there will be no leakage at the quick connector.

[0003] For example, the quick-connect connector (publication number: CN217559312U), the utility model includes a male head and a female head, the male head includes a cylindrical valve sleeve, a valve core and a spring are arranged in the valve sleeve, the inner wall of the valve sleeve has a protruding shoulder, the outer side of the plug-in end has a recessed annular plug-in groove, and a filter screen is fixed on the inner side of the connecting end; the female head includes a cylindrical shell, one end of the shell has a protruding circular sleeve portion, the inner side of the sleeve portion has a plug-in portion that can be inserted into the plug-in groove, an inner core and a spring are arranged in the shell, the inner wall of the shell has a protruding annular shoulder, the inner core moves toward the sleeve portion under the elastic force of the spring and abuts against the shoulder, and the end of the inner core extends out of the sleeve portion.

[0004] However, the quick-connect connector lacks a locking function, which causes leakage during maintenance and is inconvenient to repair. Therefore, we need to propose a quick-connect connector with a one-way shut-off function. Utility Model Content

[0005] The purpose of the utility model is to provide a one-way shut-off quick-connect connector, aiming to solve the problem that the quick-connect connector in the prior art lacks a locking function, resulting in easy leakage during maintenance and inconvenience in maintenance.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A one-way shut-off quick-plug connector comprises an outer shell, a liquid inlet being provided at the top end of the outer shell, a liquid outlet being provided at the other end of the outer shell, an inner shell being fixedly connected to an inner cavity thereof, a first protrusion being provided at one end of the inner shell, a second protrusion being provided at a side of the inner shell away from the first protrusion, a locking assembly being provided inside the inner shell for cooperating with the first protrusion and the second protrusion to prevent water from flowing back, and a clamping connector being plugged into the interior of the inner shell.

[0008] Preferably, the locking assembly includes a blocking head, one side of the blocking head is fixedly connected to a guide rod, and a return spring is sleeved on the outer wall of the guide rod.

[0009] Preferably, the plugging head is arranged in a frustum shape, and the outer wall of the plugging head is slidably connected to the inner wall of the inner shell.

[0010] Preferably, one side of the blocking head abuts against one side of the first protrusion, and the other side of the blocking head abuts against one side of the second protrusion.

[0011] Preferably, one end of the return spring is fixedly connected to one side of the plugging head, and the other end of the return spring is fixedly connected to the clamping connector.

[0012] Preferably, a guide hole adapted to the guide rod is provided on one side of the clamping connector, and the guide rod is inserted into the guide hole.

[0013] Preferably, four groups of blocks are provided on the outer wall of the shell, and the four groups of blocks are arranged in a ring array.

[0014] Preferably, a plurality of groups of elastic clamping plates are provided on the outer wall of the clamping connector, and a plurality of groups of diverter plates are provided on one side of the plurality of groups of elastic clamping plates of the clamping connector.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model arranges an inner shell inside the outer shell and cooperates with the locking assembly. When water flows through the outer shell into the inner shell, the water flow and pressure impact drive the locking assembly to slide in the direction of the water flow, thereby driving the entire system to circulate. When maintenance is needed, the quick-plug connector is unplugged, and the liquid inside the secondary and tertiary pipelines is prevented from flowing through by the locking assembly, thereby achieving the effect of preventing liquid from flowing out. The utility model can facilitate the installation of the quick connector while preventing liquid backflow, avoiding liquid leakage when the quick connector is unplugged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the inner cavity of the shell of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the inner shell and inner cavity of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the inner shell, locking assembly and clamping connector of the utility model.

[0021] In the figure: 1. Outer shell; 2. Liquid inlet; 3. Inner shell; 4. Locking assembly; 401. Sealing head; 402. Guide rod; 403. Return spring; 5. First protrusion; 6. Second protrusion; 7. Clamping connector; 701. Elastic clamping plate; 702. Diverter plate; 8. Guide hole; 9. Clamping block; 10. Liquid outlet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] A one-way shut-off quick-plug connector includes an outer shell 1, a liquid inlet 2 is provided at the top of the outer shell 1, a liquid outlet 10 is provided at the other end of the outer shell 1, an inner shell 3 is fixedly connected to the inner cavity of the outer shell 1, a first protrusion 5 is provided at one end of the inner shell 3, a second protrusion 6 is provided on the side of the inner shell 3 away from the first protrusion 5, and a locking component 4 is provided inside the inner shell 3 for cooperating with the first protrusion 5 and the second protrusion 6 to prevent water backflow, and a clamping connector 7 is inserted into the interior of the inner shell 3.

[0025] By disposing the inner shell 3 inside the outer shell 1 and cooperating with the locking assembly 4, when water flows through the outer shell 1 into the inner shell 3, the water flow and pressure impact drive the locking assembly 4 to slide in the direction of the water flow, thereby driving the entire system to circulate. When maintenance is required, the quick-connect connector is unplugged, and the liquid inside the secondary and tertiary pipes is prevented from flowing through by the locking assembly 4, thereby preventing the outflow of liquid. The utility model can facilitate the installation of the quick connector while preventing liquid backflow, avoiding liquid leakage when the quick connector is unplugged, and realizing rapid maintenance without draining liquid.

[0026] In this embodiment, the locking assembly 4 includes a plugging head 401, one side of which is fixedly connected to a guide rod 402. A return spring 403 is sleeved on the outer wall of the guide rod 402. When water flows into the liquid inlet 2 and then flows out of the liquid outlet 10, the pressure of the water flow can drive the plugging head 401 to move along the direction of the water flow. At this time, the plugging head 401 is separated from the first protrusion 5, thereby ensuring normal water flow.

[0027] Furthermore, the plugging head 401 is arranged in a frustum shape, and the outer wall of the plugging head 401 is slidably connected to the inner wall of the inner shell 3. The material selection of the plugging head 401 is very important, which directly affects the sealing performance, durability and applicable environment of the joint. Stainless steel, aluminum alloy or rubber can be selected; stainless steel has excellent mechanical properties and can withstand high pressure and wear, and is suitable for high-pressure water flow environments. Stainless steel has good corrosion resistance to various chemicals and water quality and is not easy to rust or corrode, thereby ensuring the long-term stability and reliability of the plugging head. Stainless steel can maintain stable performance over a wide temperature range and is not easily deformed or failed due to temperature changes. The stainless steel plugging head 401 is suitable for occasions that need to withstand high pressure, high temperature, highly corrosive water flow or need to maintain high performance and stability for a long time;

[0028] Aluminum alloy has low density, but its strength is significantly improved after heat treatment, which can meet the mechanical property requirements of plugging head 401. A dense oxide film is easily formed on the surface of aluminum alloy, thereby protecting the internal metal from corrosion. Aluminum alloy is easy to process and form, which facilitates the production of plugging heads of various shapes and sizes. Aluminum alloy plugging head 401 is suitable for occasions with weight requirements and the need to reduce the overall weight of the equipment, while also requiring certain corrosion resistance and mechanical properties.

[0029] Rubber materials (such as nitrile rubber, fluororubber, etc.) have good elasticity and sealing properties, can effectively prevent water backflow, and reduce the risk of leakage. Different types of rubber materials have different degrees of corrosion resistance to different chemicals and are suitable for a variety of water qualities and media. Some rubber materials can maintain stable sealing performance over a wide temperature range and are not easily invalidated by temperature changes. Rubber plugs are suitable for occasions with high requirements for sealing performance, such as those that need to prevent minor leaks or need to withstand a certain chemically corrosive water environment;

[0030] Furthermore, one side of the sealing head 401 abuts against one side of the first protrusion 5, and the other side of the sealing head 401 abuts against one side of the second protrusion 6. By setting the sealing head 401, the first protrusion 5 and the second protrusion 6 for coordinated use, when one side of the sealing head 401 is in close contact with one side of the first protrusion 5 and the second protrusion 6 respectively, it plays a role in preventing liquid reflux, which can facilitate the installation of the quick connector while preventing liquid reflux, avoid liquid leakage when the quick connector is pulled out, and realize quick maintenance without discharging liquid.

[0031] It is worth noting that one end of the return spring 403 is fixedly connected to one side of the sealing head 401, and the other end of the return spring 403 is fixedly connected to the clamping connector 7. By setting the return spring 403, the sealing head 401 is reset. When the quick-plug connector is pulled out, the reverse flow pressure of the water flow and the rebound force of the return spring 403 can drive one side of the sealing head 401 to fit tightly with one side of the first protrusion 5, thereby achieving the effect of preventing water backflow and leakage. When selecting the material of the return spring, multiple factors need to be considered, including the mechanical properties, corrosion resistance, temperature adaptability and cost of the spring. Carbon steel or alloy spring steel can be selected; the raw material price of carbon steel springs is relatively low, which helps to reduce production costs. Carbon steel springs have high strength and elastic modulus, which can meet general use requirements. Carbon steel is easy to process and form, which is convenient for producing springs of various shapes and sizes.

[0032] Alloy spring steel improves its mechanical properties and hardenability by adding alloying elements, resulting in higher strength and toughness. Certain alloy spring steels also improve their corrosion resistance by adding corrosion-resistant alloying elements. Alloy spring steels maintain stable performance over a wide temperature range, making them suitable for both high and low-temperature environments. In addition to the common materials mentioned above, springs made from specialized materials, such as nylon, are also available. These specialized materials often offer specific performance advantages, such as wear resistance, high temperature resistance, and corrosion resistance, but they are relatively expensive and are suitable for specialized environments.

[0033] Furthermore, a guide hole 8 is provided on one side of the clamping connector 7, which is compatible with the guide rod 402. The guide rod 402 is inserted into the inside of the guide hole 8. By setting the guide hole 8, the guide rod 402 is limited, so that the movement process of the sealing head 401 can be made more stable, which is conducive to improving the stability of the quick-connect connector.

[0034] Furthermore, four groups of clamping blocks 9 are provided on the outer wall of the housing 1 . The four groups of clamping blocks 9 are arranged in a ring array. By providing the clamping blocks 9 , the housing 1 can be quickly installed and connected.

[0035] Furthermore, several groups of elastic clips 701 are provided on the outer wall of the clamping connector 7, and several groups of diverter plates 702 are provided on one side of the clamping connector 7 located on the several groups of elastic clips 701. The design of the elastic clips 701 enables the quick-plug connector to be quickly and easily connected and disassembled, greatly improving work efficiency. The installation and disassembly of the connector can be easily completed without complicated tools or professional knowledge, reducing the difficulty of operation. The elastic clips 701 are usually made of high-strength, corrosion-resistant materials and can maintain their elasticity and sealing properties for a long time, which makes the quick-plug connector have a longer service life and reduces the frequency of maintenance and replacement. The diverter plate 702 can guide the fluid to be evenly distributed inside the connector to avoid fluid accumulation or eddy currents in local areas, which helps to reduce fluid resistance and improve the flow and efficiency of the liquid cooling system.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A one-way shut-off quick-connect connector, characterized in that: include: A housing (1), wherein a top end of the housing (1) is provided with a liquid inlet (2), and the other end of the housing (1) is provided with a liquid outlet (10); The inner cavity of the outer shell (1) is fixedly connected to the inner shell (3), one end of the inner shell (3) is provided with a first protrusion (5), a side of the inner shell (3) away from the first protrusion (5) is provided with a second protrusion (6), and the interior of the inner shell (3) is provided with a locking component (4) for cooperating with the first protrusion (5) and the second protrusion (6) to prevent water from flowing back; A clamping connector (7) is inserted into the interior of the inner shell (3).

2. The one-way shut-off quick-connect connector according to claim 1, characterized in that: The locking assembly (4) comprises a plugging head (401), one side of the plugging head (401) is fixedly connected to a guide rod (402), and a return spring (403) is sleeved on the outer wall of the guide rod (402).

3. The one-way shut-off quick-connect connector according to claim 2, characterized in that: The plugging head (401) is arranged in a frustum shape, and the outer wall of the plugging head (401) is slidably connected to the inner wall of the inner shell (3).

4. The one-way shut-off quick-connect connector according to claim 3, characterized in that: One side of the blocking head (401) abuts against one side of the first protrusion (5), and the other side of the blocking head (401) abuts against one side of the second protrusion (6).

5. The one-way shut-off quick-connect connector according to claim 4, characterized in that: One end of the return spring (403) is fixedly connected to one side of the plugging head (401), and the other end of the return spring (403) is fixedly connected to the clamping connector (7).

6. The one-way shut-off quick-connect connector according to claim 5, characterized in that: A guide hole (8) adapted to the guide rod (402) is provided on one side of the clamping connector (7), and the guide rod (402) is inserted into the interior of the guide hole (8).

7. The one-way shut-off quick-connect connector according to claim 1, characterized in that: Four groups of card blocks (9) are arranged on the outer wall of the housing (1), and the four groups of card blocks (9) are arranged in a ring array.

8. The one-way shut-off quick-connect connector according to claim 1, characterized in that: Several groups of elastic clamping plates (701) are provided on the outer wall of the clamping connector (7), and several groups of diverter plates (702) are provided on one side of the clamping connector (7) located on the several groups of elastic clamping plates (701).

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