Conversion valve element connector sealing structure

Abstract

The utility model provides a change-over valve element connector sealing structure which comprises a base and a valve element connector rotationally arranged on the base, the base is used for being installed on a liquid bag assembly shell, a plurality of liquid inlet pipes are arranged on the base, elastic sealing rings are fixedly arranged at the positions of the liquid inlet pipes, and liquid cavities are formed in the inner sides of the sealing rings. A liquid outlet pipe is arranged on the valve element connector, a communicating hole and a communicating groove communicating with the communicating hole are formed in the valve element connector, a sealing film used for covering the communicating groove is arranged on the valve element connector, and after the valve element connector is rotated, the liquid cavity communicates with the liquid outlet pipe through the communicating groove; the base and the valve element connector are rotationally connected through a buckle structure. The switching sealing valve can effectively solve the technical problem that in the prior art, liquid leakage is prone to occurring under the condition that the assembling precision of the switching sealing valve cannot be achieved.

Description

Technical Field

[0001] This utility model relates to the field of blood gas analysis technology, specifically to a sealing structure for a converter valve core connector. Background Technology

[0002] Wet blood gas analyzers use electrochemical methods to accurately and comprehensively reflect the body's cardiopulmonary function and tissue metabolism by dynamically monitoring parameters such as blood gas and acid-base homeostasis. This is of great significance for the formulation, implementation, and modification of surgical plans.

[0003] Traditional blood gas analyzers use electrodes to measure relevant indicators such as pH, partial pressure of carbon dioxide, and partial pressure of oxygen in arteries within a short period of time to assess a patient's respiratory and metabolic functions. Newer blood gas analyzers have evolved from simple acid-base balance measurements to comprehensive monitoring of critical care parameters that meet the requirements of modern clinical medicine. These systems can provide a comprehensive diagnosis of cardiopulmonary function, liver and kidney function, acid-base balance, oxygenation status, and metabolic function, facilitating a comprehensive and accurate analysis of respiratory status. This provides a reliable basis for the diagnosis and treatment of critically ill patients and is a crucial indicator in the monitoring of critically ill patients.

[0004] Blood gas analyzers utilize switching valves to achieve multi-channel fluid supply. Rotation of the valve switches between different flow paths, thus enabling fluid path switching. However, in practical use, the switching valve requires precise assembly; insufficient assembly accuracy can easily lead to leakage. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing structure for a switching valve core connector, which can effectively solve the technical problem of leakage that easily occurs when the assembly accuracy of the switching valve is not met in the current technology.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A valve core connector sealing structure includes a base and a valve core connector rotatably mounted on the base. The base is used to install on the housing of the liquid package assembly. The base is provided with a plurality of liquid inlet pipes. An elastic sealing ring is fixedly provided at the position of the liquid inlet pipe, and a liquid cavity is formed inside the sealing ring.

[0008] The valve core connector is provided with a liquid outlet pipe, a connecting hole and a connecting groove communicating with the connecting hole, and a sealing membrane for covering the connecting groove. After rotating the valve core connector, the liquid chamber communicates with the liquid outlet pipe through the connecting groove. The base and the valve core connector are rotatably connected by a snap-fit ​​structure.

[0009] Furthermore, the snap-fit ​​structure includes several snap-fit ​​arms, and several clearance grooves are provided on the base. The snap-fit ​​arms correspond to the clearance grooves. One end of the snap-fit ​​arm is fixedly connected to the base, and the other end is provided with a snap-fit ​​part. A stepped platform is provided on the outside of the valve core connector. Under the action of the elastic sealing ring, the snap-fit ​​part snaps into the stepped platform.

[0010] Furthermore, the chuck arm is equipped with a guide ramp.

[0011] Furthermore, an installation groove is provided on the base at a position concentric with the liquid inlet pipe, and the elastic sealing ring is located in the installation groove.

[0012] Furthermore, the outlet pipe on the valve core connector has a stepped structure, and the base is provided with a clearance hole through which the outlet pipe passes; the valve core connector is provided with several limiting claws.

[0013] Furthermore, the limiting claws are evenly distributed on the side of the relief hole, and each limiting claw has a limiting block for contacting the stepped surface on the liquid outlet pipe.

[0014] Furthermore, anti-detachment grooves are provided on the inlet and outlet pipes.

[0015] Furthermore, the base has connecting lugs on its side, and the connecting lugs have mounting holes.

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

[0017] This invention improves sealing performance by setting an elastic sealing ring at the inlet pipe position. Simultaneously, a snap-fit ​​structure enables quick connection between the base and the valve core connector. In actual use, the snap-fit ​​structure locks the elastic sealing ring in a compressed state, providing continuous warning force and ensuring the sealing of the liquid chamber. When liquid path switching is required, simply rotate the valve core connector. This creates a sliding seal between the valve core connector's end face and the elastic sealing ring, connecting the liquid chamber to the connecting hole and groove, thus enabling the liquid path to flow from the inlet pipe to the outlet pipe. This application, through the combination of the elastic sealing ring and the snap-fit ​​structure, reduces assembly precision while ensuring stability during liquid path switching. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the overall structure of the base of this utility model.

[0021] Figure 3 This is a schematic diagram of the overall structure of the valve core connector of this utility model.

[0022] Figure 4 This utility model Figure 1 The main view.

[0023] Figure 5 This is a cross-sectional view of the present invention from plane AA.

[0024] Figure 6 This is a schematic diagram of the overall structure of the present invention installed on the movement base.

[0025] Figure label:

[0026] 101 Base, 102 Valve core connector, 103 Liquid housing assembly shell, 104 Inlet pipe, 105 Elastic sealing ring, 106 Liquid chamber, 107 Outlet pipe, 108 Connecting groove, 109 Connecting hole, 110 Sealing membrane, 111 Snap-fit ​​structure, 112 Clip arm, 113 Relief groove, 114 Engaging part, 115 Stepped platform, 116 Guide slope, 117 Mounting groove, 118 Relief hole, 119 Limiting claw, 120 Limiting block, 121 Connecting lug. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0028] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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, they should not be construed as limitations on the embodiments of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they 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 embodiment of the invention according to the specific circumstances.

[0031] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0033] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] This embodiment discloses a sealing structure for a switching valve core connector, including a base 101 and a valve core connector 102 rotatably mounted on the base 101. The base 101 is used to install on the housing 103 of the liquid package assembly. A plurality of liquid inlet pipes 104 are provided on the base 101. An elastic sealing ring 105 is fixedly provided at the position of the liquid inlet pipe 104, and a liquid cavity 106 is formed inside the sealing ring.

[0035] The valve core connector 102 is provided with a liquid outlet pipe 107, a connecting hole 109 and a connecting groove 108 communicating with the connecting hole 109, and a sealing membrane 110 for covering the connecting groove 108. After rotating the valve core connector 102, the liquid chamber 106 communicates with the liquid outlet pipe 107 through the connecting groove 108. The base 101 and the valve core connector 102 are engaged and rotated through a snap-fit ​​structure 111.

[0036] This invention improves sealing performance by setting an elastic sealing ring 105 at the inlet pipe 104, and simultaneously uses a snap-fit ​​structure 111 to quickly connect the base 101 and the valve core connector 102 and enable their rotation. In actual use, the snap-fit ​​structure 111 locks the elastic sealing ring 105 in a compressed state, providing a continuous warning force and ensuring the sealing performance of the liquid chamber 106. When liquid circuit switching is required, simply rotate the valve core connector 102. At this time, a sliding seal connection is formed between the end face of the valve core connector 102 and the elastic sealing ring 105. When the liquid chamber 106 is connected to the connecting hole 109 and the connecting groove 108, the liquid circuit can be connected, allowing the reagent to flow from the inlet pipe 104 to the outlet pipe 107. This application, through the combination of the elastic sealing ring 105 and the snap-fit ​​structure 111, can ensure stability during liquid circuit switching while reducing assembly precision.

[0037] Furthermore, in this embodiment, the snap-fit ​​structure 111 includes a plurality of snap-fit ​​arms 112, and a plurality of clearance grooves 113 are provided on the base 101. The snap-fit ​​arms 112 correspond to the clearance grooves 113. One end of the snap-fit ​​arm 112 is fixedly connected to the base 101, and the other end is provided with a snap-fit ​​part 114. A stepped platform 115 is provided on the outside of the valve core connector 102. Under the action of the elastic sealing ring 105, the snap-fit ​​part 114 and the stepped platform 115 snap together.

[0038] The locking part 114 contacts the stepped platform 115, and under the action of the elastic sealing ring 105, the locking part 114 contacts the stepped platform 115 to achieve the purpose of limiting the position, so as to ensure that the valve core connector 102 and the base 101 can rotate relative to each other. At the same time, the elastic sealing ring 105 is kept in a compressed state to ensure the sealing performance.

[0039] Furthermore, in some preferred embodiments, the elastic sealing ring 105 is made of wear-resistant rubber, and a cavity structure is provided inside the elastic sealing ring 105 to improve the wear resistance of the elastic sealing ring 105 and further improve the sealing performance.

[0040] Furthermore, the clamping arm 112 is provided with a guide slope 116, which can guide the assembly process, reduce assembly difficulty, and improve assembly efficiency.

[0041] The base 101 has a mounting groove 117 located concentrically with the inlet pipe 104, and the elastic sealing ring 105 is located within the mounting groove 117. The mounting groove 117 limits the position of the elastic sealing ring 105, preventing it from moving.

[0042] In some preferred embodiments, the outlet pipe 107 on the valve core connector 102 has a stepped structure, and the base 101 is provided with a relief hole 118 through which the outlet pipe 107 passes; the valve core connector 102 is provided with a plurality of limiting claws 119; the limiting claws 119 are evenly distributed on the side of the relief hole 118, and each limiting claw 119 has a limiting block 120 for contacting the stepped surface of the outlet pipe 107.

[0043] This configuration forms the first snap-fit ​​structure, thereby limiting the position of the valve core connector 102.

[0044] In some preferred embodiments, the inlet pipe 104 and the outlet pipe 107 are provided with anti-detachment grooves to facilitate connection with the reagent tubing and to prevent detachment.

[0045] The base 101 has a connecting lug 121 on its side, and the connecting lug 121 has a mounting hole. This facilitates fixing the base 101 onto the movement base 103.

[0046] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A conversion valve core joint sealing structure, comprising a base and a valve core joint rotatably arranged on the base, the base being used for being mounted on a liquid package assembly shell, characterized in that: a plurality of liquid inlet pipes are arranged on the base, and an elastic sealing ring is fixedly arranged at the position of the liquid inlet pipe, and a liquid cavity is formed on the inner side of the sealing ring; a liquid outlet pipe is arranged on the valve core joint, a communication hole and a communication groove in communication with the communication hole are arranged on the valve core joint, a sealing film for covering the communication groove is arranged on the valve core joint, after the valve core joint is rotated, the liquid cavity is in communication with the liquid outlet pipe through the communication groove; the base and the valve core joint are rotatably connected through a buckle structure.

2. A conversion cartridge adapter seal structure as defined in claim 1, wherein: The buckle structure comprises a plurality of clamping arms, a plurality of accommodating grooves are arranged on the base, the clamping arms correspond to the accommodating grooves, one end of the clamping arm is fixedly connected with the base, the other end is provided with a clamping part, a stepped platform is arranged on the outer side of the valve core joint, and the clamping part is clamped with the stepped platform under the action of the elastic sealing ring.

3. A conversion cartridge adapter seal structure as defined in claim 2 wherein: A guide inclined surface is arranged on the clamping arm.

4. The conversion cartridge adapter seal structure of claim 1, wherein: An installation groove is arranged on the base at a position concentric with the liquid inlet pipe, and the elastic sealing ring is located in the installation groove.

5. A conversion cartridge adapter seal structure as defined in claim 1, wherein: The liquid outlet pipe arranged on the valve core joint is in a stepped structure, an accommodating hole is arranged on the base, and the liquid outlet pipe passes through the accommodating hole; a plurality of limiting claws are arranged on the valve core joint.

6. A conversion cartridge adapter seal structure as defined in claim 5, wherein: The limiting claws are uniformly distributed on the side surface of the accommodating hole, and the limiting claws are provided with a limiting block for contacting the stepped surface of the liquid outlet pipe.

7. A conversion cartridge adapter seal structure according to any one of claims 1-6, characterized in that: Anti-disengagement lines are arranged on the liquid inlet pipe and the liquid outlet pipe.

8. The conversion cartridge adapter seal structure of claim 1, wherein: A connecting lug is arranged on the side surface of the base, and an installation hole is arranged on the connecting lug.

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