Gas meter complete machine sealing detection device

Abstract

The utility model discloses a gas meter complete machine sealing detection device, which comprises a working table, a gas filling mechanism and a sealing plate, the top of the working table is provided with a supporting strip and a limiting support, and the gas filling mechanism comprises a guide rail arranged at the top of the supporting strip, a cylinder arranged in the guide rail and a gas filling head arranged at the telescopic end of the cylinder. A gas filling head is arranged on the sealing plate sleeve, the gas outlet end of the gas filling head is communicated with a gas pipe, the gas pipe is communicated with a gas injection head, and an expansion ring which is arranged on the periphery of the gas injection head in a sleeving mode and is in close fit with a gas meter connector is arranged on the side wall of the sealing plate sleeve. A protruding strip on the back face of the gas meter right abuts against the side wall of the limiting support, a connector of the gas meter is sleeved on the expansion ring, the gas filling head is controlled by the air cylinder to advance and retreat, the gas filling head can be pushed into the connector of the gas meter from the expansion ring, the expansion ring is supported, the outer wall of the expansion ring is tightly attached to the inner wall of the connector of the gas meter, and sealing performance is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of gas meter testing technology, specifically a gas meter whole-machine sealing testing device. Background Technology

[0002] Natural gas is a clean energy source, so it is widely used in daily life. Every household will install a natural gas meter. Since natural gas is a flammable and explosive gas, a leak could cause serious consequences such as fires and explosions. Therefore, conducting a sealing test on the entire natural gas meter is an important step to ensure that the gas meter will not leak during use.

[0003] First, sealing tests ensure the quality of the gas meter itself. During assembly, problems such as improper installation of parts or aging and damaged seals may occur, leading to potential leaks. Sealing tests can identify and resolve these issues promptly, ensuring the gas meter's sealing performance meets standard requirements.

[0004] Early gas tightness testing involved connecting the gas meters to the testing fixture via threaded connections at the inlet and outlet. However, the installation and disassembly of these fixtures were extremely labor-intensive for testing large quantities of gas meters. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the use of the above and / or gas meter whole unit sealing test device, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a gas meter whole unit sealing detection device. With the setting of support bar and limit support, when the gas meter is mounted on top, the convex bar on the back of the gas meter just abuts against the side wall of the limit support. The gas meter interface is fitted on the expansion ring. By controlling the gas filling head to move forward and backward by the cylinder, the gas filling head can be pushed from the expansion ring into the gas meter interface and the expansion ring is supported. The outer wall of the expansion ring is tightly fitted with the inner wall of the gas meter interface to ensure sealing.

[0008] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0009] A gas meter whole-unit sealing test device, comprising:

[0010] A workbench, the top of which is provided with support bars and limiting supports;

[0011] A gas filling mechanism, comprising a guide rail disposed on the top of a support bar, a cylinder disposed inside the guide rail, and a gas filling head disposed on the telescopic end of the cylinder, wherein the outlet end of the gas filling head is connected to a gas pipe, and the gas pipe is connected to an injection head.

[0012] The sealing plate has an expansion ring on its side wall that fits tightly around the gas injection head and is tightly fitted with the gas meter interface.

[0013] As a preferred embodiment of the gas meter sealing test device of this utility model, the bottom of the workbench is provided with support legs, and the upper part of the workbench is equipped with a gas supply device for supplying gas to the cylinder and a gas filling device for injecting gas into the filling head via a crossbeam.

[0014] In a preferred embodiment of the gas meter sealing testing device of this utility model, a mounting plate is provided on one side of the guide rail, and fastening screws that are fixedly connected to the mounting plate are provided on the side wall of the sealing plate.

[0015] In a preferred embodiment of the gas meter sealing test device of this utility model, the side wall of the sealing plate is provided with a clamping plate, which is located inside the mounting plate and is fastened to the front end of the fastening screw.

[0016] In a preferred embodiment of the gas meter sealing detection device of this utility model, the gas pipe passes through the clamping plate and the expansion ring, and the inner wall of the expansion ring is provided with a sealing ring that fits tightly with the gas injection head.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This gas meter whole-machine sealing detection device, through the setting of support bars and limiting supports, when the gas meter is mounted on top, the convex strip on the back of the gas meter just abuts against the side wall of the limiting support, the gas meter interface is fitted on the expansion ring, and the gas filling head is controlled by the cylinder to push the gas filling head from the expansion ring into the gas meter interface, and support the expansion ring. The outer wall of the expansion ring is tightly fitted with the inner wall of the gas meter interface to ensure sealing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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. Among them:

[0019] Figure 1This is a schematic diagram of the overall structure of a gas meter sealing detection device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the gas filling mechanism of a gas meter sealing detection device according to the present invention;

[0021] Figure 3 This is a schematic diagram of the sealing plate part of a gas meter sealing detection device according to the present invention.

[0022] 100. Workbench; 110. Support bar; 120. Limit support; 200. Gas filling mechanism; 210. Guide rail; 211. Mounting plate; 220. Cylinder; 230. Gas filling head; 231. Gas pipe; 232. Gas injection head; 300. Sealing plate; 310. Clamping plate; 301. Fastening screw; 320. Expansion ring. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure will not be enlarged to scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] This utility model provides a gas meter whole-machine sealing detection device. With the setting of support bar and limit support, when the gas meter is mounted on top, the convex strip on the back of the gas meter is exactly abutting against the side wall of the limit support. The gas meter interface is fitted on the expansion ring. By controlling the gas filling head to move forward and backward by the cylinder, the gas filling head can be pushed from the expansion ring into the gas meter interface and the expansion ring is supported. The outer wall of the expansion ring is tightly fitted with the inner wall of the gas meter interface to ensure sealing.

[0027] Figures 1-3 The diagram shown is a structural schematic of one embodiment of the gas meter sealing detection device of this utility model. Please refer to [link / reference]. Figures 1-3 The gas meter sealing test device of this embodiment includes a workbench 100, a gas filling mechanism 200 and a sealing plate 300.

[0028] With the support bar 110 and the limiting support 120 set on the workbench 100, when the gas meter is mounted on it, the protrusion on the back of the gas meter abuts against the side wall of the limiting support 120, and the interface of the gas meter is fitted on the expansion ring 320. Specifically, the top of the workbench 100 is provided with the support bar 110 and the limiting support 120. In this embodiment, the bottom of the workbench 100 is provided with support legs. Above the workbench 100, a gas supply device for supplying gas to the cylinder 220 and a gas filling device for filling the gas head 230 are installed on the crossbeam. The gas filling device detects the pressure change during the gas filling process through a connected pressure measuring device and analyzes whether the gas meter's sealing performance meets the standards using an external control program.

[0029] The gas filling mechanism 200 controls the gas filling head 230 to move forward and backward via the cylinder 220. This allows the filling head 232 to be pushed from the expansion ring 320 into the gas meter's interface, and the expansion ring 320 to be supported. The outer wall of the expansion ring 320 is tightly fitted to the inner wall of the gas meter interface to ensure a tight seal. Specifically, the gas filling mechanism 200 includes a guide rail 210 mounted on the top of the support bar 110, a cylinder 220 mounted inside the guide rail 210, and a gas filling head 232 mounted at the extension / retraction end of the cylinder 220. 0. The outlet end of the gas filling head 230 is connected to the gas pipe 231, and the gas pipe 231 is connected to the gas injection head 232. In this embodiment, a mounting plate 211 is provided on one side of the guide rail 210, and a fastening screw 301 is provided on the side wall of the sealing plate 300 to be fixedly connected to the mounting plate 211. The gas pipe 231 passes through the clamping plate 310 and the expansion ring 320. A sealing ring that fits tightly with the gas injection head 232 is provided on the inner wall of the expansion ring 320.

[0030] The sealing plate 300 maintains the airtightness of the gas meter interface during testing through the expansion ring 320, thereby improving the testing accuracy. Specifically, the sealing plate 300 has an expansion ring 320 on its side wall that fits tightly around the gas injection head 232 and is tightly engaged with the gas meter interface. In this embodiment, the side wall of the sealing plate 300 is provided with a clamping plate 310, which is located inside the mounting plate 211 and is fastened to the front end of the fastening screw 301.

[0031] Combination Figures 1-3 The specific usage process of the gas meter sealing detection device of this embodiment is as follows: With the setting of support bar 110 and limiting support 120, when the gas meter is mounted on top, the protrusion on the back of the gas meter just abuts against the side wall of the limiting support 120. The interface of the gas meter is fitted on the expansion ring 320. The gas filling head 230 is moved forward and backward by the cylinder 220, which can push the gas filling head 232 from the expansion ring 320 into the interface of the gas meter and support the expansion ring 320. The outer wall of the expansion ring 320 is tightly fitted with the inner wall of the gas meter interface to ensure sealing.

[0032] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A gas meter whole-unit sealing test device, characterized in that, include: A workbench (100) is provided with a support bar (110) and a limiting support (120) on its top; A gas filling mechanism (200) includes a guide rail (210) disposed on the top of a support bar (110), a cylinder (220) disposed inside the guide rail (210), and a gas filling head (230) disposed at the telescopic end of the cylinder (220). The outlet end of the gas filling head (230) is connected to a gas pipe (231), and the gas pipe (231) is connected to an injection head (232). The sealing plate (300) has an expansion ring (320) on its side wall that fits tightly around the gas injection head (232) and is in close contact with the gas meter interface.

2. The gas meter whole-unit sealing test device according to claim 1, characterized in that, The workbench (100) is provided with support legs at the bottom, and an air supply device for supplying air to the cylinder (220) and an air filling device for injecting air into the air filling head (230) are installed above the workbench (100) via a crossbeam.

3. The gas meter whole-unit sealing testing device according to claim 2, characterized in that, A mounting plate (211) is provided on one side of the guide rail (210), and a fastening screw (301) is provided on the side wall of the sealing plate (300) to be fixedly connected to the mounting plate (211).

4. The gas meter whole-unit sealing detection device according to claim 3, characterized in that, The side wall of the sealing plate (300) is provided with a clamping plate (310), which is located inside the mounting plate (211) and is fastened to the front end of the fastening screw (301).

5. The gas meter whole-unit sealing testing device according to claim 4, characterized in that, The air tube (231) passes through the clamp (310) and through the expansion ring (320), and the inner wall of the expansion ring (320) is provided with a sealing ring that fits tightly with the air injection head (232).

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