Connecting device capable of realizing exhaust and pressure reduction

Abstract

The utility model belongs to the technical field of liquid cooling, and particularly relates to a connecting device capable of exhausting and depressurizing, which comprises a shell, a swing arm and a spring, and the upper end and the lower end of the shell are respectively provided with an exhaust port and a connecting port; and a buoy capable of moving up and down is arranged in the shell. One end of the swing arm is hinged to the buoy, and the other end of the swing arm is always contacted with the exhaust port through the elasticity of the spring. The spring is adopted to replace a traditional spring-free exhaust structure hinged to the right end, the situations that sealing is not tight and precision is reduced due to long-term abrasion are avoided, reliability and precision are high, and manufacturing and machining cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of liquid cooling technology, specifically relating to a connection device that can realize exhaust pressure reduction. Background Technology

[0002] Currently, in liquid cooling piping systems, the temperature of the cooling medium rises and bubbles form. Gas occupies part of the space within the piping, and upon heating, it produces more bubbles, leading to increased pressure within the piping and hindering the flow of the cooling medium. Since gas has a lower specific heat capacity than liquid, this directly affects the cooling effect. Therefore, it is necessary to promptly remove the bubbles from the piping to reduce the internal pressure of the system and improve cooling efficiency. Using an automatic venting connector can effectively solve these problems.

[0003] Utility model patent CN2622498Y discloses an automatic exhaust valve, including a valve body, a base, and a float. The valve body is a hollow cylinder with an open bottom and a sealed top. One inner wall of the valve body is a sloping wall with a guide groove. A through vent is formed between the sloping wall and the valve body wall. A protruding ridge is provided between the sloping wall and the top wall of the valve body, with a strip-shaped exhaust port in the middle of the ridge, communicating with the through vent. The float is an eccentric hollow columnar body housed within the valve body cavity and equipped with an air passage. One side of the hollow columnar body is a rectangular block, and the top of the side of the float that abuts against the protruding ridge of the valve body is a sloping surface with an airflow regulating groove and a sealing strip clearance groove. The base is a support seat that is sealed to the lower end of the valve body, with a through hole at the lower end. This exhaust valve has the advantages of simple structure, small size, large exhaust port, flexible exhaust, self-cleaning, gradual opening and closing, convenient maintenance, and long service life.

[0004] However, for liquid cooling pipelines, the bubbles are small and the pressure is high, which places high demands on the precision of the exhaust structure. In particular, the opening and closing of the exhaust port requires very high precision, and existing technology cannot meet the operational requirements. Summary of the Invention

[0005] In view of the above-mentioned shortcomings in the existing technology, the present invention provides a connection device that can realize exhaust pressure reduction, so as to solve the problem of low precision of the existing exhaust structure.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A connecting device for achieving exhaust pressure reduction includes a housing, with an exhaust port and a connection port at the upper and lower ends of the housing, respectively; a float capable of vertical movement is installed inside the housing.

[0008] It also includes a swing arm, one end of which is hinged to the top of the buoy and the other end of which contacts the exhaust port, thereby closing or opening the exhaust port;

[0009] The spring is located below the exhaust port. The lower end of the spring is fixed inside the housing by a spring seat, and the upper end is connected to the swing arm.

[0010] Furthermore, a sealing gasket is provided on the swing arm, through which the swing arm contacts the vent. By setting the sealing gasket, the sealing effect when the vent is closed is improved, and the float's travel range when the vent is closed is increased, thus improving the reliability of the seal during bubble-free operation. It also ensures stable contact between the swing arm and the vent, preventing contact slippage caused by external shaking or lateral movement due to gaps between the float and the internal structure of the housing.

[0011] Furthermore, a sealing layer made of elastic material is provided at the end of the swing arm that contacts the exhaust port. In addition to ensuring the reliability of the seal through the sealing gasket, the reliability of the seal can also be improved by attaching, embedding, or wrapping the elastic material on the swing arm.

[0012] Furthermore, a protruding nozzle extends from the lower end of the exhaust port, contacting the swing arm. This protruding nozzle ensures that the swing arm or its sealing gasket is not interfered with by the housing during the free movement of the swing arm. This allows the swing arm or sealing gasket to remain in constant contact with the exhaust port, further improving exhaust accuracy, ensuring rapid sealing, and preventing coolant leakage due to delayed sealing.

[0013] Furthermore, the lower end of the nozzle is curved. This curved design increases the contact area between the nozzle and the swing arm or sealing gasket, reducing wear and extending service life; it also makes closing / opening smoother, thereby improving exhaust accuracy.

[0014] Furthermore, the exhaust port has a tapered shape, wider at the top and narrower at the bottom. A smaller exhaust port results in higher exhaust precision but also makes it more prone to clogging. The tapered design, however, ensures both high exhaust precision and resistance to clogging.

[0015] Furthermore, an exhaust cap is detachably fitted over the exhaust port. This prevents external dust from clogging the exhaust hole and reduces external contamination of the coolant.

[0016] This invention features a design where one end is hinged to a buoy, while the other end maintains constant contact with the vent using a spring. As bubbles accumulate, the buoy causes the left end of the swing arm to move downwards, tilting the arm and opening the vent. After venting is complete, the buoy causes the left end of the swing arm to move upwards, leveling the arm and closing the vent. When the vent's inner diameter is already at its designed minimum due to various factors, the vent is slowly opened by tilting, further reducing the gas flow cross-sectional area for high-precision venting. By using a spring instead of the traditional springless venting structure with a right-end hinge, this design avoids issues like incomplete sealing and reduced precision due to long-term wear, offering high reliability and accuracy at low manufacturing and processing costs. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view (closed state) of a connection device of the present invention that can realize exhaust pressure reduction in an embodiment;

[0018] Figure 2 This is a cross-sectional view (open state) of a connection device of the present invention that can realize exhaust pressure reduction in an embodiment;

[0019] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0020] Figure 4 This is an exploded perspective view of a connection device for reducing exhaust pressure according to the present invention, as shown in the embodiment. Detailed Implementation

[0021] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments:

[0022] It should be noted that the same or similar reference numerals in the accompanying drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

[0024] Example 1

[0025] A connection device that can reduce exhaust pressure, such as Figure 1-4 As shown, the device includes a housing 1, which is formed by machining upper and lower shells separately and then assembling them. The upper and lower ends of the housing 1 are respectively provided with an exhaust port 2 and a connection port 3. This device is installed in and communicates with the liquid cooling pipeline through the connection port 3.

[0026] The shell is equipped with a float 5 that can move up and down. The outer diameter of the float 5 is as close as possible to the inner diameter of the shell 1 to reduce the gap between them. This can reduce the radial movement between the swing arm 4 and the exhaust port 2.

[0027] One end of the swing arm 4 is hinged to the top of the buoy 5. The hinge is detachable for easy installation and assembly. The other end of the swing arm 4 contacts the exhaust port 2. When the swing arm 4 swings to make it horizontal or tilted, it closes or opens the exhaust port 2.

[0028] Spring 6 is located below exhaust port 2. The lower end of spring 6 is fixed inside housing 1 by spring seat 61, and the upper end is engaged in spring groove and connected to swing arm 4. Spring 6 can use spring force to keep swing arm 4 in contact with exhaust port at all times.

[0029] The working principle is as follows:

[0030] Air bubbles in the liquid cooling pipeline enter the housing 1 through connection port 3 and accumulate at the top. As the gas level rises, the liquid level drops, causing the float to move the left end of the swing arm downwards, tilting the arm and opening the vent to release gas. After venting is complete, the gas level decreases, the liquid level rises, and the float moves the left end of the swing arm upwards, leveling the arm and closing the vent. This completes one venting cycle, achieving automatic, high-precision venting.

[0031] Example 2

[0032] A connection device that can reduce exhaust pressure, such as Figure 1-4 As shown, the device includes a housing 1, which is formed by machining upper and lower shells separately and then assembling them. The upper and lower ends of the housing 1 are respectively provided with an exhaust port 2 and a connection port 3. This device is installed in and communicates with the liquid cooling pipeline through the connection port 3.

[0033] The shell is equipped with a float 5 that can move up and down. The outer diameter of the float 5 is as close as possible to the inner diameter of the shell 1 to reduce the gap between them. This can reduce the radial movement between the swing arm 4 and the exhaust port 2.

[0034] One end of the swing arm 4 is hinged to the top of the buoy 5. The hinge is detachable for easy installation and assembly. The other end of the swing arm 4 contacts the exhaust port 2. When the swing arm 4 swings to make it horizontal or tilted, it closes or opens the exhaust port 2.

[0035] Spring 6 is located below exhaust port 2. The lower end of spring 6 is fixed inside housing 1 by spring seat 61, and the upper end is engaged in spring groove and connected to swing arm 4. Spring 6 can use spring force to keep swing arm 4 in contact with exhaust port at all times.

[0036] A sealing gasket 41 is provided on the swing arm 4, and the swing arm 4 contacts the exhaust port 2 through the sealing gasket 41. A protruding nozzle 21 extends from the lower end of the exhaust port 2. The lower end of the protruding nozzle 21 is arc-shaped and contacts the swing arm 4. The interior of the exhaust port 2 is tapered, wider at the top and narrower at the bottom.

[0037] This embodiment is an improvement on Embodiment 1, such as... Figure 3 As shown, the addition of a sealing gasket 41 improves the sealing effect when the exhaust port 2 is closed, increases the float travel range when the exhaust port 2 is closed, and enhances the reliability of the seal during bubble-free operation. It also ensures stable contact between the swing arm 4 and the exhaust port 2, preventing contact slippage caused by external shaking or lateral movement due to gaps between the float 5 and the interior of the housing 1.

[0038] The shape and structure of exhaust port 2 have also been improved. The convex nozzle ensures that the rocker arm or the sealing gasket on the rocker arm is not interfered with by the housing during the free end movement of the rocker arm. This allows the rocker arm or sealing gasket to always be in contact with the exhaust port, further improving exhaust accuracy, ensuring rapid sealing, and preventing coolant leakage caused by delayed sealing. The arc-shaped design increases the contact area between the convex nozzle and the rocker arm or sealing gasket, reducing wear and extending service life; it also makes closing / opening smoother, thus improving exhaust accuracy. The smaller the exhaust port, the higher the exhaust accuracy, but the more prone it is to clogging. The conical design, which is wider at the top and narrower at the bottom, ensures both exhaust accuracy and resistance to clogging.

[0039] Example 3

[0040] A connection device that can reduce exhaust pressure, such as Figure 1-4 As shown, the device includes a housing 1, which is formed by machining upper and lower shells separately and then assembling them. The upper and lower ends of the housing 1 are respectively provided with an exhaust port 2 and a connection port 3. This device is installed in and communicates with the liquid cooling pipeline through the connection port 3.

[0041] The shell is equipped with a float 5 that can move up and down. The outer diameter of the float 5 is as close as possible to the inner diameter of the shell 1 to reduce the gap between them. This can reduce the radial movement between the swing arm 4 and the exhaust port 2.

[0042] One end of the swing arm 4 is hinged to the top of the buoy 5. The hinge is detachable for easy installation and assembly. The other end of the swing arm 4 contacts the exhaust port 2. When the swing arm 4 swings to make it horizontal or tilted, it closes or opens the exhaust port 2.

[0043] Spring 6 is located below exhaust port 2. The lower end of spring 6 is fixed inside housing 1 by spring seat 61, and the upper end is engaged in spring groove and connected to swing arm 4. Spring 6 can use spring force to keep swing arm 4 in contact with exhaust port at all times.

[0044] The end of the swing arm 4 that contacts the exhaust port 2 is provided with a sealing layer made of elastic material. This elastic material is rubber, and it is applied to the swing arm by means of attachment, embedding, or wrapping, which can also improve the reliability of the seal.

[0045] An exhaust cap 22 is detachably fitted onto the exterior of the exhaust port 2. A pressure relief hole is provided on the side of the exhaust cap 22, through which gas is discharged to the outside through the pressure relief hole and the assembly gap between the exhaust port 2 and the exhaust cap 22.

[0046] This embodiment, as another improvement to Embodiment 1, adds a sealing layer to enhance sealing reliability. It also adds an exhaust cap 22 to prevent external dust from clogging the exhaust port and reduce coolant contamination from external sources.

[0047] The above description is merely an embodiment of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, and are able to...

[0048] Having access to all existing technologies in the field and the ability to apply conventional experimental methods prior to this date, a person skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Typical known structures or methods should not be obstacles for a person skilled in the art to implement this application. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the structure of this utility model; these should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A connecting device for achieving exhaust pressure reduction, comprising a housing (1), wherein an exhaust port (2) and a connection port (3) are respectively provided at the upper and lower ends of the housing (1); a float (5) capable of moving up and down is provided inside the housing, characterized in that: It also includes a swing arm (4), one end of which is hinged to the top of the buoy (5), and the other end is in contact with the exhaust port (2), thereby closing or opening the exhaust port (2); Spring (6) is located below the exhaust port (2). The lower end of the spring (6) is fixed inside the housing (1) by a spring seat (61), and the upper end is connected to the swing arm (4).

2. The connection device for realizing exhaust pressure reduction according to claim 1, characterized in that: The swing arm (4) is provided with a sealing gasket (41), and the swing arm (4) contacts the exhaust port (2) through the sealing gasket (41).

3. The connection device for realizing exhaust pressure reduction according to claim 1, characterized in that: The end of the swing arm (4) that contacts the exhaust port (2) is provided with a sealing layer made of elastic material.

4. The connection device for realizing exhaust pressure reduction according to claim 1, characterized in that: The lower end of the exhaust port (2) extends into a protrusion (21), which contacts the swing arm (4).

5. The connection device for realizing exhaust pressure reduction according to claim 4, characterized in that: The lower end of the protruding nozzle (21) is arc-shaped.

6. The connection device for realizing exhaust pressure reduction according to claim 1, characterized in that: The exhaust port (2) has a cone-shaped interior that is larger at the top and smaller at the bottom.

7. A connecting device for realizing exhaust pressure reduction according to any one of claims 1-6, characterized in that: The exhaust port (2) is detachably fitted with an exhaust cap (22).

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