Plug-in connector group of electromagnetic valve and gas outlet pipeline of pressure reducing valve of liquefied gas tank

Abstract

A plug-in type connector set for an electromagnetic valve and a gas outlet pipeline of a pressure reducing valve of a liquefied gas tank comprises a metal connector body, a metal connecting piece, a first connecting piece, a second connecting piece, a third connecting piece, a fourth connecting piece and a fifth connecting piece, the middle section of the outer part is provided with a split external thread and a split cone at the tail section; the tubular soft rubber inner sleeve is mounted in the circular hole in the center of the metal joint main body, a hole is formed in the center of the tubular soft rubber inner sleeve, a circular ring with a larger diameter is arranged at the front end of the tubular soft rubber inner sleeve, and a convex ring is arranged at the rear end of the tubular soft rubber inner sleeve; the front section of the inside of the polygonal metal tightening sleeve is provided with an internal thread matched with the split external thread of the metal joint main body for use, the rear section of the inside of the polygonal metal tightening sleeve is a conical hole, and the inner diameter of the tail end of the conical hole is the same as or close to the outer diameter of the tail end of the split taper of the metal joint main body. The utility model not only is simple and easy to install, but also does not cause damage to equipment, and is novel, practical and safe.

Description

Technical Field

[0001] This utility model relates to an insert-type connector assembly for the outlet pipe of an electromagnetic valve and a pressure reducing valve for a liquefied gas tank. Background Technology

[0002] Currently, most devices for leak detection and gas supply cutoff in liquefied petroleum gas (LPG) cylinders use robotic arms, while some use solenoid valves. Because these devices are directly installed at the high-pressure outlet of the gas cylinder, installation and commissioning are complex, and there are still certain risks involved in their use. Even slight loosening, insufficient precision of the robotic arm, wear and tear over time, or hardening and aging of the rubber in cold weather can cause a sudden release of high-pressure gas, creating a hazard. Furthermore, the cutoff device itself is easily damaged due to constant exposure to high-pressure gas, gradually affecting its precision and reliability. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a plug-in gas connector that is simple and easy to install and will not cause danger or damage to equipment.

[0004] To solve the above-mentioned technical problems, this utility model proposes the following technical solution: an insert-type connector assembly for the outlet pipe of a solenoid valve and a liquefied gas tank pressure reducing valve, comprising:

[0005] A metal connector body has a round hole with a recessed step at the front end in the center of its interior, and symmetrical flanges and fixing holes on both sides of its front section to lock and fix it with the air inlet port of the solenoid valve. Its middle section has a split external thread and a split cone at the end.

[0006] A tubular soft rubber inner sleeve is installed in the central inner circular hole of the metal connector body. It has a hole in the center and a large diameter ring at the front end to lock with the air inlet port of the solenoid valve to prevent air leakage. It has a convex ring at the rear end to prevent loosening.

[0007] A polygonal metal clamp sleeve has an internal thread at its front end that mates with the split external thread of the metal connector body, and a tapered hole at its rear end. The inner diameter of the tapered hole at its very end is the same as or close to the outer diameter of the split taper of the metal connector body. The entire gas outlet pipe of the liquefied gas cylinder pressure reducing valve is inserted into the central hole of the tubular soft rubber inner sleeve of the metal connector body, and then the polygonal metal clamp sleeve is tightened forward. The gas outlet pipe of the liquefied gas cylinder pressure reducing valve will be clamped and will not loosen or leak.

[0008] A further limitation of the above technical solution is that the inner hole of the tubular soft rubber inner sleeve can be a through hole.

[0009] A further limitation of the above technical solution is that the inner hole shape of the tubular soft rubber inner sleeve is the same as the outer surface shape of the gas outlet pipe of the standard specification of the pressure reducing valve of a commonly used liquefied gas cylinder.

[0010] Compared with the prior art, the present invention has the following advantages: The solenoid valve and the gas outlet pipe insertion connector of the liquefied gas tank pressure reducing valve of the present invention are installed at the gas outlet of the pressure reducing valve of the gas tank. Since the pressure of the gas has been greatly reduced to a safe range by the pressure reducing valve, and the gas flow can also be controlled stably, it is not only simple and easy to install, but also will not cause damage to the equipment. It is a novel, practical and safe product. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is an exploded perspective view of Embodiment 1 of the solenoid valve and the insert-type connector assembly for the gas outlet pipe of the liquefied gas tank pressure reducing valve of this utility model.

[0013] Figure 2 This is an exploded perspective view of Embodiment 1, which shows the actual use of an electromagnetic valve and a liquefied gas tank pressure reducing valve in conjunction with the insertion connector assembly of the solenoid valve and the liquefied gas tank pressure reducing valve.

[0014] Figure 3 This is a three-dimensional assembly diagram of an embodiment 1 showing the actual use of an electromagnetic valve and a liquefied gas tank pressure reducing valve in conjunction with the insert-type connector assembly for the gas outlet pipe of the present invention.

[0015] Figure 4 This is an exploded cross-sectional view of Embodiment 1 of the solenoid valve and the insert-type connector assembly for the gas outlet pipe of the liquefied gas tank pressure reducing valve of this utility model.

[0016] Figure 5 This is a cross-sectional view of Embodiment 1 of the solenoid valve and the gas outlet pipe of the liquefied gas tank pressure reducing valve of this utility model.

[0017] Figure 6 This is a cross-sectional view of the tubular soft rubber inner sleeve of the solenoid valve and the gas outlet pipe insertion connector assembly of the pressure reducing valve of the liquefied gas tank according to embodiment 2. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0019] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 this utility model.

[0020] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] 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 or an electrical 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.

[0022] The implementation of this utility model will be described in detail below with reference to the specific accompanying drawings.

[0023] like Figure 1The diagram shown is an exploded perspective view of Embodiment 1 of the solenoid valve and liquefied gas tank pressure reducing valve outlet pipe insert connector assembly of this utility model. The metal connector body 02 has a centrally located circular hole 024 at its front end. Its external front end has symmetrical flanges 026 and fixing holes 021 on both sides. Its external middle section has a split external thread 022 and a split cone 023 at its end. Both split sections are formed by four cracks 025, thus providing a certain degree of elasticity. A tubular soft rubber inner sleeve 01 is installed in the central circular hole 024 of the metal connector body 02. This inner sleeve has a central inner hole 013, a large-diameter ring 011 at its front end, and a raised ring 012 at its rear end to prevent loosening. A polygonal metal clamp sleeve 03 with internal threads is installed on the outer periphery of the metal connector body 02. The rear section of the clamp sleeve 03 is a tapered hole 032. The inner diameter of the outermost end of the tapered hole 032 is the same as the outer diameter of the split taper 023 of the metal connector body 02. When the polygonal metal clamp sleeve 03 is tightened forward, the tapered hole 032 in the rear section will force the outer diameter of the split taper 023 at the end of the metal connector body 02 to be compressed and reduced.

[0024] like Figure 2 The diagram shown is an exploded perspective view of Embodiment 1, illustrating the actual use of an insert-type connector assembly for the outlet pipe of a solenoid valve and a liquefied gas cylinder pressure reducing valve. The solenoid valve 04 has an inlet port 041 and an outlet port 042 on each side. The inlet port 041 has a screw hole 043 on each of its two flanges, and a vent pipe 045 in the center of the inlet port 041, with a stepped opening 044 of a relatively large inner diameter at its front end. By using two screws 06 to lock the metal connector body 02 through the fixing holes 021 on the two flanges 026 at the front end of the metal connector body 02 and the screw holes 043 on the flanges of the inlet port 041 of the solenoid valve 04, the fixed connection between the metal connector body 02 and the solenoid valve 04 is completed.

[0025] like Figure 3 The diagram shows a perspective view of Embodiment 1, illustrating the actual use of an electromagnetic valve and a liquefied gas cylinder pressure reducing valve outlet pipe insert connector assembly. After the metal connector body 02 and the electromagnetic valve 04 are secured with screws, the entire outlet pipe 051 of the liquefied gas cylinder pressure reducing valve is inserted into the central hole 013 of the tubular soft rubber inner sleeve within the metal connector body 02. Then, the polygonal metal clamp 03 is tightened forward, thus securing the outlet pipe 051 of the liquefied gas cylinder pressure reducing valve and preventing it from loosening.

[0026] like Figure 4The diagram shown is an exploded cross-sectional view of Embodiment 1 of the solenoid valve and liquefied gas tank pressure reducing valve outlet pipe insert connector assembly of this utility model. The metal connector body 02 has a central circular hole 024 with a recessed step 027 at its front end. Its outer front end has symmetrical flanges 026 and fixing holes 021 on both sides. Its outer middle section has a split external thread 022 and a split cone 023 at its end, both split by four cracks 025. A tubular soft rubber inner sleeve 01 is installed in the central circular hole 024 of the metal connector body 02. The tubular soft rubber inner sleeve 01 has a central inner hole 013 and a large-diameter ring 011 at its front end, positioned at the recessed step 027 at the central front end of the metal connector body 02 to lock with the air inlet port 041 of the solenoid valve 04 to prevent leakage. Its rear end has a protruding ring 012 to prevent the tubular soft rubber inner sleeve 01 from detaching from the metal connector body 02. A polygonal metal clamp 03 is installed on the outer periphery of the metal connector body 02. The front section of the clamp has an internal thread 033 that cooperates with the split external thread 022 of the metal connector body 02. The rear section of the clamp is a tapered hole 032 without threads. The inner diameter of the tapered hole 032 at its end is the same as or close to the outer diameter of the split taper 023 of the metal connector body 02.

[0027] like Figure 5 The diagram shows a cross-sectional view of Embodiment 1 of the solenoid valve and liquefied gas cylinder pressure reducing valve outlet pipe insertion connector assembly of this utility model. Two screws 06 are used to lock the metal connector body 02 through the fixing holes 021 on both sides of the front flange 026 and the screw holes 043 on both ends of the solenoid valve 04 inlet port 041, thus completing the fixed connection between the metal connector body 02 and the solenoid valve 04. Then, the entire liquefied gas cylinder pressure reducing valve outlet pipe 051 is inserted into the central hole 013 of the tubular soft rubber inner sleeve inside the metal connector body 02. Finally, the polygonal metal clamp 03 is tightened forward, thus securing the liquefied gas cylinder pressure reducing valve outlet pipe 051 and preventing it from loosening. Because the solenoid valve 04 has a large inner diameter step 044 at the air inlet port 041, the diameter of which is the same as the annulus 011 at the front end of the tubular soft rubber inner sleeve 01, when the solenoid valve 04 air inlet port 041 is locked and fixed to the metal connector body 02, the annulus 011 at the front end of the tubular soft rubber inner sleeve 01 will be forced flattened and tightly surround the front outlet of the gas outlet pipe 051 of the liquefied gas tank pressure reducing valve, thus preventing gas leakage.

[0028] like Figure 6The diagram shown is a cross-sectional view of the tubular soft rubber inner sleeve of the solenoid valve and the gas outlet pipe insertion connector assembly of the liquefied gas cylinder pressure reducing valve of this utility model, according to embodiment 2. The inner hole shape of the tubular soft rubber inner sleeve can be designed to be the same as the outer shape of the gas outlet pipe of the commonly used liquefied gas cylinder pressure reducing valve, thus more effectively preventing gas leakage in the gas outlet pipe 051 of the liquefied gas cylinder pressure reducing valve and increasing the stability of the overall assembly.

Claims

1. A plug-in connector assembly for the outlet pipe of a solenoid valve and a liquefied gas tank pressure reducing valve, characterized in that: It includes: A metal connector body has a round hole with a recessed step at the front end in the center of its interior, and symmetrical flanges and fixing holes on both sides of its front section to lock and fix it with the air inlet port of the solenoid valve. Its middle section has a split external thread and a split cone at the end. A tubular soft rubber inner sleeve is installed in the central inner circular hole of the metal connector body. It has a hole in the center and a large diameter ring at the front end to lock with the air inlet port of the solenoid valve to prevent air leakage. It has a convex ring at the rear end to prevent loosening. A polygonal metal clamp sleeve has an internal thread at its front end that mates with the split external thread of the metal connector body, and a tapered hole at its rear end. The inner diameter of the tapered hole at its very end is the same as or close to the outer diameter of the split taper of the metal connector body. The entire gas outlet pipe of the liquefied gas cylinder pressure reducing valve is inserted into the central hole of the tubular soft rubber inner sleeve of the metal connector body, and then the polygonal metal clamp sleeve is tightened forward. The gas outlet pipe of the liquefied gas cylinder pressure reducing valve will be clamped and will not loosen or leak.

2. The insertion connector assembly for the solenoid valve and the outlet pipe of the liquefied gas tank pressure reducing valve as described in claim 1, characterized in that: The inner hole of the tubular soft rubber inner sleeve can be a through hole.

3. The insertion connector assembly for the solenoid valve and the outlet pipe of the liquefied gas tank pressure reducing valve as described in claim 1, characterized in that: The inner hole shape of the tubular soft rubber inner sleeve is the same as the outer shape of the gas outlet pipe of the standard specification of commonly used liquefied gas cylinder pressure reducing valve.

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