A double-layer filter piercing gas cylinder linker

Abstract

This utility model relates to the field of gas cylinder flow guidance technology, and proposes a double-layer filter puncture gas cylinder connector, including a gas cylinder, a gas cylinder flow guiding component, a gas cylinder sealing component, and a connector component. This utility model achieves rapid puncture of the gas cylinder and simultaneous high-pressure sealing by integrating a stainless steel puncture needle and a fluororubber "O" ring into a flow guiding plate, preventing gas leakage and improving operational efficiency and safety. A stable compression seal is formed by the interlocking of a metal filter screen and a soft rubber front-end seal through a "soft and hard" peak-valley groove, preventing gas leakage at the front end. The double-layer nano-level PVC filter screen at both ends effectively intercepts particulate residue ejected from the gas cylinder, preventing gas passage blockage and ensuring gas purity, making it particularly suitable for medical and high-precision industrial applications. The combined design of the flow guiding groove and the flow guide plate guides the gas out in a directional manner during cylinder separation, avoiding the risk of frostbite due to disordered spraying and enhancing operational safety.

Description

Technical Field

[0001] This utility model relates to the field of gas cylinder flow guiding technology, specifically a double-layer filter gas cylinder puncture connector. Background Technology

[0002] Gas cylinder connectors are key components used in industrial and medical fields to safely and efficiently connect high-pressure gas cylinders to gas-using equipment. They typically refer to the interface devices fixed to the gas-using equipment. The two are designed to achieve rapid sealing and connection, ensuring the stability of gas transmission and preventing leakage.

[0003] However, firstly, existing high-pressure gas cylinders on the market are all installed using a single insertion or a single thread, resulting in poor sealing and widespread gas leakage. Secondly, after connecting the gas cylinder, residue often accumulates and clogs the gas passage. Thirdly, after operation, if there is residual gas, when disassembling the gas cylinder, the exhaust gas will spray out in an unpredictable manner due to the single threaded fixing method, which can easily lead to frostbite on the hands. Summary of the Invention

[0004] The purpose of this invention is to provide a double-layer filter puncture gas cylinder connector to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-layer filter puncture gas cylinder connector, comprising a gas cylinder, a gas cylinder flow guiding component, a gas cylinder sealing component, and a connector component. One end of the gas cylinder is threadedly connected to the connector component. The gas cylinder flow guiding component and the gas cylinder sealing component are sleeved inside the connector component. One end of the gas cylinder flow guiding component contacts the gas outlet end of the gas cylinder, and the other end of the gas cylinder flow guiding component is tightly fitted to the gas cylinder sealing component.

[0006] Preferably, the gas cylinder flow guiding assembly includes a flow guiding plate, a needle, a flow guiding plate, an O-ring, a rear filter screen, and a front seal. The flow guiding plate has an air hole in its center. The needle is fixedly connected to one end face of the flow guiding plate. The O-ring is fitted around the outside of the needle. The gas outlet end of the gas cylinder is connected to the flow guiding plate through the needle and they are interconnected. The flow guiding plates are fixedly connected to both sides of the flow guiding plate. The rear filter screen and the front seal are fitted around the other end face of the flow guiding plate through the side wall. The rear filter screen and the front seal are tightly fitted together.

[0007] Preferably, a through hole is formed at the center of the front sealing element, one side end face of the front sealing element matches the guide plate, a groove is formed on the other side end face of the front sealing element, and the material of the front sealing element is soft rubber.

[0008] Preferably, the gas cylinder sealing assembly includes a filter screen pressing plate and a front-end filter screen. The filter screen pressing plate has a perforation at its center. The filter screen pressing plate and the guide plate have complementary and corresponding cross-sections. One end face of the filter screen pressing plate has a peak groove that corresponds to a valley groove on the other end face of the front-end seal. The filter screen pressing plate is made of metal. The other end face of the filter screen pressing plate is tightly fitted to the front-end filter screen.

[0009] Preferably, the connector assembly includes a connector body, an internal thread, and a guide groove. A vent hole is opened at one end of the connector body, an internal thread is provided inside the connector body, and guide grooves are provided on both sides of the internal thread. The cross-section of the connector body corresponds to the filter screen plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention integrates a stainless steel piercing needle and a fluororubber "O" ring into a flow guide plate, enabling rapid puncture of the gas cylinder and simultaneous formation of a high-pressure seal, thus preventing gas leakage and improving operational efficiency and safety.

[0012] This invention uses a metal filter screen and a soft rubber front-end seal, which are fitted together by a "soft and hard" peak-valley groove to form a stable compression seal, preventing gas leakage at the front end.

[0013] This invention effectively intercepts particulate residues ejected from gas cylinders by setting up double-layer nano-level PVC filters at both the front and rear ends, preventing gas duct blockage and ensuring gas purity. It is especially suitable for medical and high-precision industrial scenarios.

[0014] This invention, through the combined design of a guide groove and a guide plate, guides the gas to be discharged in a specific direction during gas cylinder separation, avoiding the risk of frostbite caused by disordered spraying and enhancing operational safety.

[0015] The key components of this invention, such as the needle and the guide plate, are made of stainless steel, and the seals are made of fluororubber, which has the characteristics of high pressure resistance and corrosion resistance, thus extending the service life of the equipment and reducing maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the exploded structure of the overall appearance of this utility model from the left side;

[0017] Figure 2 This is a right-side view of the overall exploded structure of this utility model;

[0018] Figure 3 This is an exploded perspective view of the overall appearance of this utility model;

[0019] Figure 4 This is a schematic diagram of the airflow guidance of this utility model.

[0020] In the diagram: 1. Gas cylinder; 2. Gas cylinder flow guiding assembly; 201. Flow guiding plate; 202. Needle; 203. Flow guiding plate; 204. "O" ring seal; 205. Rear end filter screen; 206. Front end seal; 3. Gas cylinder sealing assembly; 301. Filter screen pressing plate; 302. Front end filter screen; 4. Connector assembly; 401. Connector body; 402. Internal thread; 403. Flow guiding groove. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; 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 be a connection within 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.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4The present invention provides an embodiment of a double-layer filter puncture gas cylinder connector, comprising a gas cylinder 1, a gas cylinder flow guiding component 2, a gas cylinder sealing component 3, and a connector component 4. One end of the gas cylinder 1 is threadedly connected to the connector component 4. The gas cylinder flow guiding component 2 and the gas cylinder sealing component 3 are sleeved inside the connector component 4. One end of the gas cylinder flow guiding component 2 contacts the gas outlet end of the gas cylinder 1, and the other end of the gas cylinder flow guiding component 2 is tightly fitted to the gas cylinder sealing component 3.

[0026] Furthermore, the gas cylinder flow guiding assembly 2 includes a flow guiding plate 201, a needle 202, a flow guiding plate 203, an O-ring seal 204, a rear filter screen 205, and a front seal 206. A vent hole is formed in the center of the flow guiding plate 201. The needle 202 is fixedly connected to one side of the flow guiding plate 201, and the O-ring seal 204 is fitted onto the outside of the needle 202. The outlet end of the gas cylinder 1 is connected to the flow guiding plate 201 via the needle 202 and is interconnected. The flow guiding plates 203 are fixedly connected to both sides of the flow guiding plate 201. The rear filter screen 205 and the front seal are fitted onto the other end of the flow guiding plate 201 via a side wall. 206. The rear filter 205 fits tightly with the front seal 206. The guide plate 201, the needle 202, and the guide plate 203 are all made of stainless steel. The guide plate 201 is used to support the front and rear filters 205 and the front seal 206. The needle 202 at the end of the guide plate 201 can quickly puncture the gas cylinder. Two notches are opened on the side wall of the guide plate 201, which correspond to the filter plate 301. The O-ring 204 is made of fluororubber and is used to seal the gas port. The rear filter 205 is made of nano-grade PVC filter and is used to filter the residue sprayed from the gas pipe to avoid clogging the gas passage.

[0027] Furthermore, a through hole is opened at the center of the front sealing element 206, one side end face of the front sealing element 206 matches the guide plate 201, and a groove is opened on the other side end face of the front sealing element 206. The front sealing element 206 is made of soft rubber material and is used for the compression sealing of the front filter screen pressing plate 301.

[0028] Furthermore, the gas cylinder sealing assembly 3 includes a filter screen 301 and a front filter screen 302. The filter screen 301 has a perforation at its center. The filter screen 301 and the guide plate 201 have complementary and corresponding cross-sections. One end face of the filter screen 301 has a peak groove that corresponds to the valley groove on the other end face of the front seal 206. The filter screen 301 is made of metal. The other end face of the filter screen 301 is tightly fitted to the front filter screen 302. The front filter screen 302 is a nano-grade PVC filter screen that is inserted into the connecting part to filter the residue ejected from the gas pipe and prevent blockage of the gas passage. The filter screen 301 is made of metal and is used to press down the front filter screen. It has a protrusion on the back to seal the gas cylinder guide assembly 2.

[0029] Furthermore, the connector assembly 4 includes a connector body 401, an internal thread 402, and a guide groove 403. A vent hole is opened at one end of the connector body 401. An internal thread 402 is provided inside the connector body 401. Guide grooves 403 are provided on both sides of the internal thread 402. The cross section of the connector body 401 corresponds to the filter screen pressure plate 301. The connector body 401 is made of metal. The guide groove 403 cooperates with the guide plate 203 to guide the gas discharge direction when the gas cylinder is separated, avoiding irregular gas discharge and frostbite to the arm.

[0030] Working principle: First, place the front-end filter 302 inside the air outlet end of the connector assembly 4 and attach the flat end of the filter plate 301 to the front-end filter 302. Then, insert the peak groove on the other end face of the filter plate 301 into the corresponding valley groove on one end face of the front-end seal 206. Next, place the rear-end filter 205 on the guide plate 201, and attach the "O" ring to the needle 202. Push the guide plate 203 along the guide groove 403 into the connector body 401 until the rear-end filter 205 is attached to the front-end seal 206 and fitted onto the side wall of the guide plate 201. Inside, ensure that the side ears of the filter screen pressing plate 301 correspond to the side opening of the guide plate 201. Finally, screw the gas cylinder 1 into the connector body 401 according to the internal thread 402 guide, so that the guide plate 201, the front sealing member 206 and the filter screen pressing plate 301 are squeezed and sealed until the gas cylinder 1 is punctured by the needle 202, so that the gas can be smoothly discharged from the outlet at one end of the connector body 401. If the gas cylinder 1 is used up, the gas cylinder 1 can be rotated to separate from the needle 202 inside the connector body 401. The remaining gas will enter the guide groove 403 and be fixedly discharged along the direction of the guide plate 203, ensuring that the arm does not approach this place.

[0031] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A double-layer filter puncture gas cylinder connector, comprising a gas cylinder (1), a gas cylinder flow guiding assembly (2), a gas cylinder sealing assembly (3), and a connector assembly (4), characterized in that: One end of the gas cylinder (1) is threadedly connected to the connector assembly (4). The gas cylinder flow guide assembly (2) and the gas cylinder sealing assembly (3) are sleeved inside the connector assembly (4). One end of the gas cylinder flow guide assembly (2) is in contact with the gas outlet end of the gas cylinder (1), and the other end of the gas cylinder flow guide assembly (2) is tightly fitted with the gas cylinder sealing assembly (3). The gas cylinder flow guiding assembly (2) includes a flow guiding plate (201), a needle (202), a flow guiding plate (203), an "O" ring seal (204), a rear filter screen (205), and a front seal (206). The flow guiding plate (201) has an air hole in the center. The needle (202) is fixedly connected to one side of the flow guiding plate (201). The "O" ring seal (204) is sleeved on the outside of the needle (202). The gas outlet of the gas cylinder (1) is inserted into the flow guiding plate (201) through the needle (202) and is interconnected. The flow guiding plate (203) is fixedly connected to both sides of the flow guiding plate (201). The rear filter screen (205) and the front seal (206) are sleeved on the other side of the flow guiding plate (201) through the side wall. The rear filter screen (205) and the front seal (206) are tightly fitted together.

2. A dual filter piercing gas cylinder link according to claim 1 wherein: The front sealing element (206) has a through hole at its center. One side of the front sealing element (206) matches the guide plate (201). The other side of the front sealing element (206) has a groove. The front sealing element (206) is made of soft rubber.

3. A dual filter piercing gas cylinder link according to claim 1, wherein: The gas cylinder sealing assembly (3) includes a filter screen plate (301) and a front filter screen (302). The filter screen plate (301) has a perforation at its center. The filter screen plate (301) and the guide plate (201) have complementary and corresponding cross sections. One end face of the filter screen plate (301) has a peak groove that corresponds to the valley groove on the other end face of the front seal (206). The filter screen plate (301) is made of metal. The other end face of the filter screen plate (301) is tightly fitted to the front filter screen (302).

4. A dual filter piercing gas cylinder link according to claim 1, wherein: The connector assembly (4) includes a connector body (401), an internal thread (402), and a guide groove (403). One end of the connector body (401) has a vent hole. The connector body (401) has an internal thread (402) inside. The guide groove (403) is provided on both sides of the internal thread (402). The cross section of the connector body (401) corresponds to the filter screen plate (301).

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