Laboratory gas path monitoring device

Abstract

The utility model discloses a laboratory gas path monitoring device, which belongs to the technical field of gas path pressure monitoring, and comprises a detection device body, a plurality of reserved pipes are fixedly mounted at the bottom end of the detection device body, sealing assemblies are mounted in the reserved pipes, gas path pipes are inserted into the inner walls of the reserved pipes, and the gas path pipes are connected with the sealing assemblies. U-shaped supports are symmetrically and fixedly mounted on the outer side of the reserved pipe, a sliding groove is formed in one end of each support, a quadrangular prism is slidably mounted on the inner wall of each sliding groove, a first spring is fixedly mounted between one end of each quadrangular prism and the inner wall of each sliding groove, and a positioning plate is fixedly mounted at one end of each quadrangular prism; positioning grooves matched with the positioning plates are symmetrically formed in the outer side of the gas path pipe, a pull rod is fixedly installed at one end of the quadrangular prism, and one end of the pull rod penetrates through the support in a sliding mode and is fixedly provided with a disc, and by optimizing the structure and sealing design, the problems that an existing gas path monitoring device is tedious in installation and poor in sealing effect are solved.

Description

Technical Field

[0001] This utility model relates to the field of gas pressure monitoring technology, and more specifically, to a laboratory gas monitoring device. Background Technology

[0002] Laboratory gas supply systems are an indispensable component of scientific research and industrial production, and their stability and safety directly impact experimental results and production quality. A typical gas supply system consists of multiple parts, including gas cylinders, gas switching devices, pressure reducing devices, valves, pipelines, filters, alarms, terminal boxes, and regulating valves. Currently, the mainstream laboratory gas supply system primarily employs centralized gas supply systems to ensure the stability and safety of the gas supply.

[0003] However, existing laboratory gas path monitoring devices have several problems in use. First, the connection process between the gas path tubing and the monitoring device is cumbersome, consuming a significant amount of time during installation and disassembly, thus affecting work efficiency. Second, for interfaces without gas path tubing, temporary plugs are typically used for sealing. This method is ineffective, allowing debris to enter the tubing and disrupting normal gas path operation, while also causing inconvenience for subsequent installation and maintenance. Therefore, there is an urgent need for a gas path monitoring device that simplifies the installation process and improves sealing performance to meet the laboratory's requirements for efficient and safe operation of the gas path system. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a laboratory gas path monitoring device, which aims to improve the problems of cumbersome connection to gas path tubes and time-consuming installation and disassembly.

[0005] This utility model is implemented as follows: A laboratory gas path monitoring device includes a detection device body. Multiple pre-installed tubes are fixedly mounted at the bottom of the detection device body. A sealing assembly is installed inside each pre-installed tube. A gas path tube is inserted into the inner wall of each pre-installed tube. U-shaped supports are symmetrically fixedly mounted on the outer side of each pre-installed tube. A sliding groove is provided at one end of each support. A quadrangular prism is slidably mounted on the inner wall of the sliding groove. A first spring is fixedly mounted between one end of the quadrangular prism and the inner wall of the sliding groove. A positioning plate is fixedly mounted at one end of the quadrangular prism. Positioning grooves matching the positioning plate are symmetrically provided on the outer side of the gas path tube. A pull rod is fixedly mounted at one end of the quadrangular prism. One end of the pull rod slidably passes through the support and is fixedly mounted on a disc.

[0006] In a preferred embodiment of this utility model, a groove is provided at one end of the quadrangular prism, and the first spring and the pull rod are both fixedly connected to one side of the inner wall of the groove. The first spring is sleeved on the outside of the pull rod, and the length of the groove is greater than the minimum length of the first spring after compression.

[0007] In a preferred embodiment of this utility model, the air passage pipe is slidably connected to the inner wall of the reserved pipe, the positioning plate is arc-shaped, and the bottom end of the inner wall of the positioning plate is inclined.

[0008] In a preferred embodiment of this utility model, the sealing assembly includes a first support ring, a second support ring, a sealing plate, and elastic telescopic rods. The first support ring is fixedly installed on the inner wall of the pre-reserved pipe. The elastic telescopic rods are symmetrically fixedly installed on the bottom end of the first support ring. The output ends of the two elastic telescopic rods are jointly fixedly installed on the second support ring. The second support ring is slidably connected to the inner wall of the pre-reserved pipe. A support column is fixedly installed on the inner wall of the second support ring by a support rod. One end of the support column passes through the first support ring and is fixedly installed on the sealing plate. The sealing plate is slidably and sealingly connected to the inner wall of the first support ring. The axis of the support column coincides with that of the second support ring.

[0009] In a preferred embodiment of this utility model, the elastic telescopic rod includes a sleeve rod, a round rod, and a second spring. The sleeve rod is symmetrically and fixedly installed at the bottom end of the first support ring. The bottom end of the sleeve rod is slidably sleeved onto the round rod. The bottom end of the round rod is fixedly connected to the top end of the second support ring. The second spring is fixedly installed between the top end of the round rod and the top end of the inner wall of the sleeve rod.

[0010] In a preferred embodiment of this utility model, the sealing plate is a circular plate with a T-shaped cross-section. The top of the first support ring has an annular groove that matches the sealing plate, and a sealing gasket is fixedly installed on the inner wall of the annular groove.

[0011] In a preferred embodiment of this utility model, a dustproof net can be fixedly installed on the inner wall of the second support ring as needed.

[0012] The beneficial effects of this utility model are:

[0013] Easy installation: The system features a U-shaped bracket, square prisms, a positioning plate, and a positioning groove. The air tubing can be quickly inserted into the pre-installed tubing and automatically secured by the positioning plate, simplifying the installation process and saving time. Disassembly is simple and convenient; just pull the lever to release the fixation.

[0014] Excellent sealing performance: The sealing assembly adopts a design of a first support ring, a second support ring, a sealing plate, and an elastic telescopic rod. When the gas pipe is inserted, it pushes the second support ring to move, causing the sealing plate to disengage from the first support ring, forming a sealed channel. When the gas pipe is not inserted, the sealing plate is tightly fitted with the first support ring, effectively preventing debris from entering the pipeline and ensuring the cleanliness and normal operation of the gas circuit.

[0015] Stable structure: The positioning plate has an arc-shaped design and the bottom of the inner wall is inclined, which facilitates the insertion and fixation of the air pipe. At the same time, the elasticity of the first spring ensures a tight fit between the positioning plate and the positioning groove, which enhances the stability and safety of the device.

[0016] Wide range of applications: This device is applicable to a variety of laboratory gas circuit systems and can meet the monitoring needs of different gas circuit diameters and pressures, with high versatility and practicality. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the structure of a laboratory gas path monitoring device provided by an embodiment of the present invention;

[0019] Figure 2 A partial structural schematic diagram of a laboratory gas path monitoring device is provided for an embodiment of this utility model;

[0020] Figure 3 A cross-sectional view of the bracket is provided for the embodiment of this utility model;

[0021] Figure 4 A schematic diagram of the sealing assembly is provided for embodiments of this utility model.

[0022] In the diagram: 110 - Detection device body; 120 - Reserved pipe; 121 - First support ring; 122 - Second support ring; 123 - Sealing plate; 124 - Elastic telescopic rod; 125 - Support rod; 126 - Support column; 130 - Bracket; 131 - Quadrilateral prism; 132 - First spring; 133 - Positioning plate; 134 - Positioning groove; 135 - Pull rod; 136 - Disc; 140 - Air passage pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figures 1-3 The present invention provides a technical solution: a laboratory gas path monitoring device, comprising a detection device body 110, a plurality of reserved tubes 120 fixedly installed at the bottom end of the detection device body 110, a sealing component installed inside the reserved tubes 120, a gas path tube 140 inserted into the inner wall of the reserved tubes 120, a U-shaped bracket 130 symmetrically fixedly installed on the outer side of the reserved tubes 120, a sliding groove provided at one end of the bracket 130, a quadrangular prism 131 slidably installed on the inner wall of the sliding groove, a first spring 132 fixedly installed between one end of the quadrangular prism 131 and the inner wall of the sliding groove, a positioning plate 133 fixedly installed at one end of the quadrangular prism 131, a positioning groove 134 symmetrically provided on the outer side of the gas path tube 140 matching the positioning plate 133, a pull rod 135 fixedly installed at one end of the quadrangular prism 131, and one end of the pull rod 135 slidably passing through the bracket 130 and fixedly installed with a disc 136.

[0025] In some specific implementations, a groove is provided at one end of the quadrangular prism 131. The first spring 132 and the pull rod 135 are both fixedly connected to one side of the inner wall of the groove. The first spring 132 is sleeved on the outside of the pull rod 135, and the length of the groove is greater than the minimum length of the first spring 132 after compression. This design allows the first spring 132 to be stably sleeved on the pull rod 135 during compression and extension, preventing the first spring 132 from shifting or twisting under force. This ensures that the elastic force of the first spring 132 can be accurately applied to the quadrangular prism 131, thereby ensuring that the positioning plate 133 can stably cooperate with the positioning groove 134, enhancing the stability and reliability of the device when connected to the air pipe 140.

[0026] In some specific implementation schemes, the air pipe 140 is slidably connected to the inner wall of the reserved pipe 120 with a sealing seal. The positioning plate 133 is arc-shaped, and the bottom end of the inner wall of the positioning plate 133 is inclined. The arc-shaped design makes the contact between the positioning plate 133 and the air pipe 140 more intimate, increases the contact area, disperses the pressure, and improves the fixing effect. The inclined bottom end of the inner wall makes it easier for the positioning plate 133 to move away from and squeeze the first spring 132 more smoothly when the air pipe 140 is inserted, making the insertion process easier and more convenient and improving the installation efficiency.

[0027] Please see Figure 4The sealing assembly includes a first support ring 121, a second support ring 122, a sealing plate 123, and elastic telescopic rods 124. The first support ring 121 is fixedly installed on the inner wall of the pre-reserved pipe 120. Elastic telescopic rods 124 are symmetrically fixedly installed on the bottom end of the first support ring 121. The output ends of the two elastic telescopic rods 124 are jointly fixedly installed on the second support ring 122. The second support ring 122 is slidably connected to the inner wall of the pre-reserved pipe 120. A support column 126 is fixedly installed on the inner wall of the second support ring 122 via a support rod 125. One end of the support column 126 passes through the first support ring 121 and is fixedly mounted with the sealing plate 123. The sealing plate 123 is slidably connected to the inner wall of the first support ring 121. The axis of the support column 126 coincides with that of the second support ring 122. The elastic telescopic rod 124 includes a sleeve rod, a round rod, and a second spring. The sleeve rod is symmetrically fixedly mounted at the bottom end of the first support ring 121. The bottom end of the sleeve rod is slidably sleeved with the round rod. The bottom end of the round rod is fixedly connected to the top end of the second support ring 122. The second spring is fixedly mounted between the top end of the round rod and the top end of the inner wall of the sleeve rod. During the insertion and removal of the air passage tube 140, this structure can precisely control the movement of the second support ring 122, ensuring that the sealing plate 123 accurately fits or separates from the first support ring 121, ensuring stable and reliable sealing performance of the sealing assembly, and extending the service life of the device.

[0028] In some specific implementations, the sealing plate 123 is a circular plate with a T-shaped cross-section. The top of the first support ring 121 has an annular groove that matches the sealing plate 123. A sealing gasket is fixedly installed on the inner wall of the annular groove. The T-shaped structure increases the contact area and sealing range between the sealing plate 123 and the first support ring 121. The sealing gasket further enhances the sealing effect, effectively preventing dust, impurities, etc. from entering the pipeline, ensuring that the gas system is not contaminated, and improving the sealing performance and reliability of the device.

[0029] Working principle: In use, one end of the air pipe 140 to be connected is passed through the space between the two positioning plates 133 and then inserted into the reserved pipe 120. At this time, the two positioning plates 133 are relatively far apart due to the cooperation of the inclined surfaces and squeeze the first spring 132. At the same time, after the air pipe 140 is inserted into the reserved pipe 120, it contacts the second support ring 122 and pushes it to move. The movement of the second support ring 122 drives the round rod to move and squeeze the second spring. At the same time, the movement of the second support ring 122, through the cooperation of the support rod 125 and the support column 126, drives the sealing plate 123 to move until it falls off the first support ring 121. When the air pipe 140 moves to the point where the positioning plate 133 is aligned with the positioning groove 134, it stops. At this time, the elastic force of the first spring 132 drives the quadrangular prism 131 to move back. The movement of the quadrangular prism 131 drives the positioning plate 133 to be inserted into the positioning groove 134 and fixed. When disassembling, simply pull the disc 136 to drive the positioning plate 133 out of the positioning groove 134 through the pull rod 135. The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A laboratory gas path monitoring device comprising a detection device body, characterised in that: The bottom end of the detection device body is fixedly installed with a plurality of reserved pipes, a sealing assembly is installed in the reserved pipes, an air path pipe is inserted into the inner wall of the reserved pipe, U-shaped supports are symmetrically fixedly installed outside the reserved pipes, a sliding groove is arranged at one end of the support, a quadrangular prism is slidingly installed in the inner wall of the sliding groove, a first spring is fixedly installed between one end of the quadrangular prism and the inner wall of the sliding groove, a positioning plate is fixedly installed at one end of the quadrangular prism, positioning grooves matched with the positioning plate are symmetrically arranged outside the air path pipe, a pull rod is fixedly installed at one end of the quadrangular prism, and the pull rod slidingly penetrates through the support and is fixedly installed with a disc.

2. The laboratory gas path monitoring device of claim 1, wherein, One end of the quadrangular prism is provided with a groove, the first spring and the pull rod are fixedly connected with one side of the inner wall of the groove, and the first spring is sleeved outside the pull rod.

3. The laboratory gas path monitoring device of claim 1, wherein, The air path pipe is sealingly and slidingly connected with the inner wall of the reserved pipe, the positioning plate is arc-shaped, and the bottom end of the inner wall of the positioning plate is inclined.

4. The laboratory gas path monitoring device of claim 1, wherein, The sealing assembly comprises a first support ring, a second support ring, a sealing plate and an elastic telescopic rod, the first support ring is fixedly installed on the inner wall of the reserved pipe, the elastic telescopic rod is symmetrically fixedly installed at the bottom end of the first support ring, the output ends of the two elastic telescopic rods are fixedly installed with the second support ring, the second support ring is slidingly connected with the inner wall of the reserved pipe, a support column is fixedly installed on the inner wall of the second support ring through a support rod, the support column penetrates through the first support ring at one end and is fixedly installed with the sealing plate, and the sealing plate is sealingly and slidingly connected with the inner wall of the first support ring.

5. A laboratory gas path monitoring device according to claim 4, characterised in that, The elastic telescopic rod comprises a sleeve rod, a circular rod and a second spring, the sleeve rod is symmetrically fixedly installed at the bottom end of the first support ring, the circular rod is slidingly sleeved at the bottom end of the sleeve rod, the bottom end of the circular rod is fixedly connected with the top end of the second support ring, and the second spring is fixedly installed between the top end of the sleeve rod and the top end of the circular rod.

6. The laboratory gas path monitoring device of claim 4, wherein, The sealing plate is circular, the transverse section of the sealing plate is T-shaped, and the top end of the first support ring is provided with an annular groove matched with the sealing plate.

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