Double-layer filtering puncturing gas cylinder linker

Abstract

The invention relates to the technical field of gas cylinder flow guiding, and provides a double-layer filtering puncturing gas cylinder linker which comprises a gas cylinder, a gas cylinder flow guiding assembly, a gas cylinder sealing assembly and a connector assembly.The double-layer filtering puncturing gas cylinder linker is provided with a flow guiding disc integrated stainless steel puncturing needle and a fluororubber O-shaped sealing ring, rapid puncturing of the gas cylinder is achieved, high-pressure sealing is synchronously formed, gas leakage is avoided, and the sealing effect is good. The operation efficiency and safety are improved, a metal filter screen pressing piece and a soft rubber front end sealing piece are embedded through a'soft and hard 'peak valley groove, stable extrusion sealing is formed, gas leakage at the front end is avoided, particle residues sprayed out of a gas cylinder can be effectively intercepted through a front-end and rear-end double-layer nanoscale PVC filter screen, a gas channel is prevented from being blocked, and the service life of the gas cylinder is prolonged. The gas cylinder separation device is simple in structure, guarantees gas purity, is particularly suitable for medical and high-precision industrial scenes, guides gas to be discharged directionally during gas cylinder separation through the matched design of the flow guide grooves and the drainage guide pieces, avoids the frostbite risk caused by disordered injection, and enhances operation safety.

Description

Technical Field

[0001] The invention relates to the technical field of gas cylinder diversion, in particular to a double-layer filtering and puncturing gas cylinder connector. Background Art

[0002] Gas cylinder connectors are key components used in the industrial and medical fields to safely and efficiently connect high-pressure gas cylinders with gas-using equipment. They usually refer to interface devices fixed to gas-using equipment. The two are quickly sealed and docked through standardized design to ensure stable and leak-proof gas transmission.

[0003] However, first, the existing high-pressure gas cylinders on the market are installed with a single insertion or single thread fixation, which has poor sealing effect and widespread gas leakage. Second, after the gas cylinder is connected, there is a common problem of residue blocking the airway. Third, after the operation is completed, if there is residual gas, when the gas cylinder is disassembled, due to the single screw-type fixation, the exhaust will be sprayed out in an undirected manner, which can easily cause frostbite on the hands. Summary of the Invention

[0004] The purpose of the present invention is to provide a double-layer filter puncture gas cylinder connector to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a double-layer filter puncturing gas cylinder connector, comprising a gas cylinder, a gas cylinder guide assembly, a gas cylinder sealing assembly and a joint assembly, one end of the gas cylinder is threadedly connected to the joint assembly, the interior of the joint assembly is sleeved with the gas cylinder guide assembly and the gas cylinder sealing assembly, one end of the gas cylinder guide assembly is in contact with the gas outlet end of the gas cylinder, and the other end of the gas cylinder guide assembly is tightly fitted with the gas cylinder sealing assembly.

[0006] Preferably, the gas cylinder guide assembly includes a guide plate, a needle, a guide vane, an O-ring, a rear end filter and a front end seal. An air hole is provided in the center of the guide plate. One end face of the guide plate is fixedly connected to the needle. The outer side of the needle is sleeved with an O-ring. The gas outlet end of the gas cylinder is connected to the guide plate through the needle and is interconnected. Both sides of the guide plate are fixedly connected to the guide vane. The other end face of the guide plate is sleeved with the rear end filter and the front end seal through the side wall. The rear end filter fits tightly against the front end seal.

[0007] Preferably, a through hole is provided at the center of the front end seal, one end face of the front end seal matches the guide plate, and the other end face of the front end seal provides a valley groove, and the material of the front end seal is soft rubber material.

[0008] Preferably, the gas cylinder sealing assembly includes a filter screen pressing plate and a front-end filter screen, a perforation is provided at the center of the filter screen pressing plate, the filter screen pressing plate and the guide plate cross-section are complementary and corresponding, a peak groove is provided on one end face of the filter screen pressing plate and is plugged into the valley groove provided on the other end face of the front-end seal, the filter screen pressing plate is made of metal, and the other end face of the filter screen pressing plate is tightly fitted with the front-end filter screen.

[0009] Preferably, the docking joint assembly includes a docking joint body, an internal thread and a guide groove, a vent hole is opened at one end of the docking joint body, an internal thread is arranged inside the docking joint body, guide grooves are arranged on both sides of the internal thread, and the cross-section of the docking joint body corresponds to the filter screen pressing piece.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a guide plate with an integrated stainless steel puncture needle and a fluororubber "O"-ring, so as to achieve rapid puncture of the gas cylinder and simultaneously form a high-pressure seal, thereby avoiding gas leakage and improving operational efficiency and safety.

[0011] The present invention forms a stable extrusion seal by arranging a metal filter screen pressing piece and a soft rubber front end seal through a "one soft and one hard" peak-valley groove to prevent gas leakage at the front end.

[0012] The present invention provides a double-layer nano-grade PVC filter at the front and rear ends, which can effectively intercept particulate residues sprayed from gas cylinders, prevent airway blockage, and ensure gas purity. It is particularly suitable for medical and high-precision industrial scenarios.

[0013] The present invention provides a coordinated design of a guide groove and a guide vane to guide the gas to be discharged in a directional manner when the gas cylinder is separated, thereby avoiding the risk of frostbite caused by disordered injection and enhancing operational safety.

[0014] The key components of the present invention, such as the needle and the guide plate, are made of stainless steel, and the sealing parts are made of fluororubber, which has the characteristics of high pressure resistance and corrosion resistance, thereby extending the service life of the equipment and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the left side of the overall appearance of the explosion structure of the present invention; Figure 2 This is a schematic diagram of the right side of the overall appearance explosion structure of the present invention; Figure 3 This is a perspective diagram of the overall appearance of the exploded structure of the present invention; Figure 4 Schematic diagram of air flow guidance of the present invention.

[0016] In the figure: 1. Gas cylinder; 2. Gas cylinder guide assembly; 201. Guide plate; 202. Needle; 203. Drainage guide; 204. "O"-ring; 205. Rear filter; 206. Front seal; 3. Gas cylinder sealing assembly; 301. Filter pressing piece; 302. Front filter; 4. Connector assembly; 401. Connector body; 402. Internal thread; 403. Guide groove. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0021] See also Figure 1-4 The present invention provides an embodiment: a double-layer filter puncture gas cylinder connector, comprising a gas cylinder 1, a gas cylinder guide component 2, a gas cylinder sealing component 3 and a joint component 4, one end of the gas cylinder 1 is threadedly connected to the joint component 4, the inside of the joint component 4 is sleeved with the gas cylinder guide component 2 and the gas cylinder sealing component 3, one end of the gas cylinder guide component 2 is in contact with the gas outlet end of the gas cylinder 1, and the other end of the gas cylinder guide component 2 is tightly fitted with the gas cylinder sealing component 3.

[0022] Furthermore, the gas cylinder guide assembly 2 includes a guide plate 201, a needle 202, a guide vane 203, an O-ring 204, a rear filter 205 and a front seal 206. An air hole is provided in the center of the guide plate 201. The end face of one side of the guide plate 201 is fixedly connected to the needle 202. The outer side of the needle 202 is sleeved with the O-ring 204. The gas outlet end of the gas cylinder 1 is connected to the guide plate 201 through the needle 202 and is interconnected. The two sides of the guide plate 201 are fixedly connected to the guide vane 203. The other end face of the guide plate 201 is sleeved with the rear filter 205 and the front seal through the side wall. 206, the rear end filter 205 fits tightly with the front end seal 206, the guide plate 201, the needle 202, and the drainage guide 203 are all made of stainless steel. The guide plate 201 is used to carry the front and rear end filter 205 and the front end seal 206. The needle 202 at the tail end of the guide plate 201 can quickly pierce the gas cylinder. Two notches are provided on the side wall of the surface of the guide plate 201 corresponding to the filter pressing piece 301. The "O"-shaped sealing ring 204 is made of fluororubber material and is used to seal the air port. The rear end filter 205 adopts a nano-grade PVC filter to filter the residue sprayed out of the trachea to avoid blocking the airway.

[0023] Furthermore, a through hole is opened at the center of the front end seal 206, one end face of the front end seal 206 matches the guide plate 201, and a valley is opened on the other end face of the front end seal 206. The material of the front end seal 206 is soft rubber material, which is used for extrusion sealing of the front end filter screen pressing plate 301.

[0024] Furthermore, the gas cylinder sealing assembly 3 includes a filter screen pressing piece 301 and a front end filter screen 302. A perforation is provided at the center of the filter screen pressing piece 301. The cross-section of the filter screen pressing piece 301 is complementary to that of the guide plate 201. A peak groove is provided on one end face of the filter screen pressing piece 301 and is plugged into a valley groove provided on the other end face of the front end sealing member 206. The filter screen pressing piece 301 is made of metal. The other end face of the filter screen pressing piece 301 fits tightly with the front end filter screen 302. The front end filter screen 302 is a nano-scale PVC filter screen, which is plugged into the docking piece and is used to filter residues ejected from the trachea to avoid blocking the airway. The filter screen pressing piece 301 is made of metal and is used to press the front end filter screen. There is a protrusion on the back for sealing the gas cylinder guide assembly 2.

[0025] Furthermore, the docking joint assembly 4 includes a docking joint body 401, an internal thread 402 and a guide groove 403. A vent is provided at one end of the docking joint body 401, an internal thread 402 is provided inside the docking joint body 401, and guide grooves 403 are provided on both sides of the internal thread 402. The cross-section of the docking joint body 401 corresponds to the filter screen pressing piece 301. The docking joint body 401 is made of metal. The guide groove 403 cooperates with the diversion guide piece 203 to guide the gas discharge direction when the gas cylinder is separated, thereby avoiding irregular gas discharge and frostbite of the arm.

[0026] Working principle: First, place the front filter 302 on the inner side of one end of the air outlet inside the joint assembly 4 and fit the flat end of the filter pressing plate 301 to the front filter 302. Then, open the peak groove on the other end face of the filter pressing plate 301 and plug it into the valley groove on one end face of the front seal 206. Then, place the rear filter 205 on the guide plate 201, put the "O"-shaped sealing ring on the needle 202, and push the drainage guide 203 along the guide groove 403 into the joint body 401 until the rear filter 205 and the front seal 206 fit together and fit on the side wall of the guide plate 201. 201 and ensure that the side ears of the filter screen pressing piece 301 correspond to the opening of the side wall of the guide plate 201. Finally, the gas cylinder 1 is screwed into the docking joint body 401 according to the internal thread 402 to squeeze and seal the guide plate 201, the front end seal 206 and the filter screen pressing piece 301 until the gas cylinder 1 is punctured by the needle 202, so that the gas can be smoothly discharged from the gas outlet at one end of the docking joint body 401. After the gas cylinder 1 is used up, the gas cylinder 1 can be rotated to separate it from the needle 202 inside the docking joint body 401, and the remaining gas will enter the guide groove 403 and be discharged fixedly along the direction of the guide piece 203, just make sure that your arms do not get close to this place.

[0027] The above is only an embodiment of the present invention, and common sense such as the specific structure and characteristics of the scheme are not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claim involved.

Claims

1. A double-layer filter puncture gas cylinder connector, comprising a gas cylinder (1), a gas cylinder guide 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 a butt joint assembly (4), and a gas cylinder flow guide assembly (2) and a gas cylinder sealing assembly (3) are sleeved inside the butt joint assembly (4). One end of the gas cylinder flow guide assembly (2) contacts 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).

2. A double-layer filter puncture gas cylinder connector according to claim 1, characterized in that: The gas cylinder guide assembly (2) comprises a guide plate (201), a needle (202), a guide vane (203), an O-ring (204), a rear filter (205) and a front seal (206). An air hole is provided at the center of the guide plate (201). One end face of the guide plate (201) is fixedly connected to the needle (202). The outer side of the needle (202) is sleeved with the O-ring (204). The gas outlet end of the gas cylinder (1) is plugged into the guide plate (201) through the needle (202) and is interconnected. Both sides of the guide plate (201) are fixedly connected to the guide vane (203). The other end face of the guide plate (201) is sleeved with the rear filter (205) and the front seal (206) through the side wall. The rear filter (205) is tightly fitted with the front seal (206).

3. A double-layer filter puncture gas cylinder connector according to claim 2, characterized in that: A through hole is provided at the center of the front end seal (206), one end surface of the front end seal (206) matches the guide plate (201), and a valley is provided on the other end surface of the front end seal (206). The material of the front end seal (206) is a soft rubber material.

4. A double-layer filter puncture gas cylinder connector according to claim 1, characterized in that: The gas cylinder sealing assembly (3) comprises a filter screen pressing piece (301) and a front filter screen (302), wherein a perforation is provided at the center of the filter screen pressing piece (301), and the cross-sections of the filter screen pressing piece (301) and the guide plate (201) are complementary and correspond to each other, and a peak groove is provided on one end face of the filter screen pressing piece (301) and is plugged into a valley groove provided on the other end face of the front seal (206), and the filter screen pressing piece (301) is made of metal, and the other end face of the filter screen pressing piece (301) is tightly fitted with the front filter screen (302).

5. A double-layer filter puncture gas cylinder connector according to claim 1, characterized in that: The butt joint assembly (4) comprises a butt joint body (401), an internal thread (402) and a guide groove (403); a vent hole is provided at one end of the butt joint body (401); an internal thread (402) is provided inside the butt joint body (401); guide grooves (403) are provided on both sides of the internal thread (402); and a cross section of the butt joint body (401) corresponds to the filter screen pressing piece (301).

Images