Gas tightness test tool for electronic control valve of gas meter

Abstract

The utility model relates to the field of gas meter electric control valves, and discloses a gas meter electric control valve airtightness test tool comprising a supporting box, a connecting pipe is arranged at the top end of the rear side of the supporting box, the outer wall of the bottom end of the connecting pipe penetrates through and is fixedly connected to the inner wall of the supporting box, and a sealing gasket is fixedly connected to the bottom end, close to the connecting pipe, of the supporting box. A through hole is formed in the middle of the sealing gasket, a mounting assembly is arranged on the left side of the supporting box and comprises a moving plate, the outer wall of the moving plate slides on the inner wall of the supporting box, and an air bag penetrates through the front end of the moving plate and is fixedly connected with the front end of the moving plate. According to the utility model, through the cooperative use of the installation assembly and the supporting box, when the gas tightness test is carried out on the electric control valve of the gas meter, the two ends of the valve and the sealing gasket can be rapidly extruded and sealed through the installation assembly, so that the sealing performance in the test process is enhanced, and the damage to the valve is reduced; and meanwhile, the working efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of electronic control valves for gas meters, in particular to an airtightness testing tooling for an electronic control valve of a gas meter. Background Technique

[0002] With the rapid development of the gas industry and the continuous improvement of gas safety awareness, as an important part of the gas supply system, the safety and reliability of gas meters have received increasing attention. As one of the key components of gas meters, the airtightness of electronic control valves directly affects the overall performance and safety of gas meters. Therefore, it is crucial to accurately and reliably test the airtightness of electronic control valves.

[0003] The existing airtightness testing of electronic control valves for gas meters mainly relies on traditional testing methods, such as water pressure testing, air pressure testing, etc.

[0004] The existing testing methods for the airtightness testing of electronic control valves for gas meters usually require the disassembly and installation of the electronic control valves, which are cumbersome to operate and easily damage the valves. For this reason, an airtightness testing tooling for an electronic control valve of a gas meter is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an airtightness testing tooling for an electronic control valve of a gas meter, aiming to improve the problem that "the existing airtightness testing of the electronic control valve of a gas meter requires the disassembly and installation of the electronic control valve, which is cumbersome to operate and easily damages the valve" in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: an airtightness testing tooling for an electronic control valve of a gas meter, including a support box, a connecting pipe is arranged at the top end of the rear side of the support box, the outer wall of the bottom end of the connecting pipe penetrates and is fixedly connected to the inner wall of the support box, a sealing gasket is fixedly connected to the bottom end of the support box close to the connecting pipe, a through hole is opened in the middle of the sealing gasket, an installation component is arranged on the left side of the support box, the installation component includes a moving plate, the outer wall of the moving plate slides on the inner wall of the support box, and an airbag is fixedly connected to the front end of the moving plate through penetration.

[0007] As a further description of the above technical scheme:

[0008] A first threaded rod is rotatably connected to the left and right ends of the support box close to the moving plate, the outer wall of the first threaded rod is threadedly connected to the inner walls of the left and right ends of the moving plate, a first gear is fixedly connected to the rear side of the moving plate, and a second gear is meshed with the right side of the first gear, and the second gear is rotatably connected to the inner wall of the support box.

[0009] As a further description of the above technical scheme:

[0010] A reduction motor is provided at the rear side of the support box close to the second gear. The front end of the output shaft of the reduction motor is fixedly connected to the rear end of the second threaded rod. There are two sets of the first gear and the first threaded rod, and the two sets of the first gear and the first threaded rod are symmetrically arranged with the center line of the support box as the axis of symmetry.

[0011] As a further description of the above technical solution:

[0012] There are two sets of the sealing gaskets. The front end of the other set of the sealing gaskets is fixedly connected to the rear end of the moving plate. A through groove is opened at the center of the moving plate close to the sealing gasket.

[0013] As a further description of the above technical solution:

[0014] An adjusting assembly is provided inside the bottom end of the support box. The adjusting assembly includes a backing plate. The outer wall of the backing plate slides inside the support box. A limiting hole is opened through the top end of the backing plate, and a limiting block is inserted into the inner wall of the limiting hole.

[0015] As a further description of the above technical solution:

[0016] A connecting rod is hinged to the middle of the bottom end of the backing plate. A second threaded rod is rotatably connected to the inner wall of the support box close to the bottom end of the backing plate. A slider is threadedly connected to the outer wall of the second threaded rod.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the bottom end of the slider slides on the inner wall of the support box, and the top end of the slider is hinged to the bottom end of the right side of the connecting rod.

[0019] As a further description of the above technical solution:

[0020] There are multiple sets of the limiting blocks, and the multiple sets of the limiting blocks are symmetrically arranged with the center line of the backing plate as the axis of symmetry.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the combined use of the installation assembly and the support box, when performing the airtightness test on the electric control valve of the gas meter, the two ends of the electric control valve of the gas meter can be quickly squeezed and sealed with the sealing gasket through the installation assembly, enhancing the sealing performance during the test, reducing the damage to the valve, and improving the working efficiency of the equipment at the same time.

[0023] 2. In the utility model, through the combined use of the adjusting assembly and the support box, the electric control valves of different specifications can be aligned with the middle of the sealing gasket, improving the practicability of the equipment. At the same time, the electric control valve is limited by the limiting block, improving the stability of the electric control valve. Description of the Drawings

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the overall device in the present utility model;

[0025] Figure 2 This is a top-down three-dimensional structural sectional schematic diagram of the support box in the present utility model;

[0026] Figure 3 This is a right-side three-dimensional structural sectional schematic diagram of the support box in the present utility model.

[0027] Legend description:

[0028] 1. Support box; 2. Connecting pipe; 3. Sealing gasket; 41. Moving plate; 42. Airbag; 43. First threaded rod; 44. First gear; 45. Second gear; 46. Reducing motor; 51. Lining plate; 52. Limiting hole; 53. Limiting block; 54. Connecting rod; 55. Second threaded rod; 56. Slide block. Specific implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0030] Refer to Figure 1 and Figure 2 A gas meter electric control valve airtightness test tooling provided by the present utility model includes a support box 1 for installing components. A connecting pipe 2 for connecting an air pump is arranged at the top end of the rear side of the support box 1. The outer wall of the bottom end of the connecting pipe 2 penetrates and is fixedly connected to the inner wall of the support box 1, and is used to connect the through hole in the middle of the sealing gasket 3. The airtightness of the closed valve is tested through the through hole. A sealing gasket 3 for sealing the two side ports of the valve is fixedly connected to the bottom end of the support box 1 close to the connecting pipe 2. The sealing gasket 3 can reduce the damage caused during the installation of the valve. A through hole for connecting the valve port and the connecting pipe 2 is opened in the middle of the sealing gasket 3. An installation component for installing and fixing the gas meter electric control valve is arranged on the left side of the support box 1. The installation component includes a moving plate 41 for extruding the gas meter electric control valve, which can improve the sealing performance between the gas meter electric control valve and the equipment. The outer wall of the moving plate 41 slides on the inner wall of the support box 1, which can improve the stability of the moving plate 41 when moving. A front end of the moving plate 41 penetrates and is fixedly connected with an airbag 42 for observing the leaking gas meter electric control valve. When the airbag 42 expands, it indicates that the tested gas meter electric control valve leaks and the airtightness is insufficient.

[0031] Refer to Figure 2, a threaded rod one 43 for driving the moving plate 41 to squeeze and install the gas meter electric control valve is rotatably connected to both the left and right ends of the support box 1 close to the moving plate 41. The outer wall of the threaded rod one 43 is threadedly connected to the inner walls of the left and right ends of the moving plate 41. By the coordinated rotation of the two threaded rods one 43, the moving plate 41 can be effectively driven to move smoothly and precisely. And this design of double threaded rods can significantly increase the stability and reliability of the moving plate 41 during movement, effectively reducing problems such as shaking or deviation that may occur during movement, so as to better meet the accuracy requirements and operation needs in actual work. A gear one 44 for driving the driven gear two 45 to rotate is fixedly connected to the rear side of the moving plate 41. The gear one 44 meshes with the gear two 45 on the right side to achieve power transmission. The gear two 45 is rotatably connected to the inner wall of the support box 1 and can rotate stably. A reduction motor 46 is arranged at the rear side of the support box 1 close to the gear two 45. The reduction motor 46 has the function of precisely controlling the rotational speed and output torque, which is prior art, so it will not be described in detail in this case. The front end of the output shaft of the reduction motor 46 is fixedly connected to the rear end of the threaded rod two 55, providing a reliable power source for the whole system. There are two sets of the gear one 44 and the threaded rod one 43, and the two sets of the gear one 44 and the threaded rod one 43 are symmetrically arranged with the center line of the support box 1 as the axis of symmetry, which can ensure that the moving plate 41 is evenly stressed during movement, thus ensuring the smoothness and accuracy of its movement. There are two sets of sealing gaskets 3, which can seal the two ports of the gas meter electric control valve of different specifications. The front end of the other set of sealing gaskets 3 is fixedly connected to the rear end of the moving plate 41. By the movement of the moving plate 41, the two sets of sealing gaskets 3 seal the two ports of the gas meter electric control valve, so as to reduce the damage to the valve. A through groove is opened at the center of the moving plate 41 close to the sealing gasket 3, which is used to connect the front port of the gas meter electric control valve and the airbag 42.

[0032] Refer to Figure 1 and Figure 3, an adjustment component is provided inside the bottom end of the support box 1. The adjustment component includes a backing plate 51. The outer wall of the backing plate 51 slides inside the support box 1, and the position of the backing plate 51 can be flexibly adjusted according to actual needs. A limiting hole 52 is penetrated and opened at the top end of the backing plate 51, and a limiting block 53 is inserted into the inner wall of the limiting hole 52. The cooperation between the limiting block 53 and the limiting hole 52 can effectively limit and fix the position of the gas meter electric control valve, preventing unnecessary movement during the installation process. A connecting rod 54 for connecting the slider 56 is hinged at the middle of the bottom end of the backing plate 51. A second threaded rod 55 for driving the slider 56 to move stably is rotatably connected to the inner wall of the support box 1 near the bottom end of the backing plate 51. The outer wall of the second threaded rod 55 is threadedly connected with a slider 56 for driving the connecting rod 54 to move. The outer wall of the bottom end of the slider 56 slides on the inner wall of the support box 1, and the top end of the slider 56 is hinged to the bottom right end of the connecting rod 54. When the slider 56 moves along the second threaded rod 55, it can drive the backing plate 51 to make corresponding position adjustments through the connecting rod 54, so that the center points of the ports of gas meter electric control valves of different specifications are aligned with the center point of the sealing gasket 3, improving the practicability of the equipment. Multiple groups of limiting blocks 53 are provided, and the multiple groups of limiting blocks 53 are symmetrically arranged with the center line of the backing plate 51 as the axis of symmetry, enabling the gas meter electric control valve to be evenly limited and supported in all directions, further improving the stability and reliability during the detection of the gas meter electric control valve.

[0033] Working principle: When in use, first, place the gas meter electric control valve to be tested on the backing plate 51 inside the support box 1. By rotating the second threaded rod 55, the slider 56 threadedly connected to it moves. The movement of the slider 56 drives the hinged connecting rod 54 to act, thereby adjusting the position of the backing plate 51 to ensure that the center point of the valve port can be aligned with the center point of the sealing gasket 3. At the same time, utilize the cooperation between multiple groups of symmetrically arranged limiting blocks 53 and the limiting holes 52 to limit and fix the position of the valve, preventing unnecessary movement during the installation process and improving the stability during detection.

[0034] Next, start the reduction motor 46. Its output shaft drives the second threaded rod 55 to rotate. Through the meshing transmission of the second gear 45 and the two first gears 44, drive the two symmetrically arranged first threaded rods 43 to rotate. The rotation of the first threaded rods 43 causes the moving plates 41 threadedly connected to them to move smoothly and precisely along the inner wall of the support box 1. The moving plates 41 move towards the valve direction to squeeze and install the valve, improving the sealing performance between the valve and the equipment.

[0035] Then, connect the connecting pipe 2 to the air pump. The gas provided by the air pump enters the closed valve through the connecting pipe 2 and the through hole in the middle of the sealing gasket 3. Since the sealing gaskets 3 are respectively fixed at the bottom end of the support box 1 near the connecting pipe 2 and the rear end of the moving plate 41, effective sealing of the two ports of the valve can be achieved.

[0036] During the process of filling gas into the valve, observe the airbag 42 on the front side of the moving plate 41. If the airbag 42 expands, it indicates that there is a gas leakage phenomenon in the tested gas meter electric control valve and the airtightness is insufficient; if the airbag 42 remains unchanged, it indicates that the airtightness of the valve is good.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A gas meter electric control valve airtightness test tooling, comprising a support box (1), characterized in that: A connecting pipe (2) is provided at the top rear side of the support box (1). The outer wall of the bottom end of the connecting pipe (2) is fixedly connected through the inner wall of the support box (1). A sealing gasket (3) is fixedly connected to the support box (1) near the bottom end of the connecting pipe (2). A through hole is provided in the middle of the sealing gasket (3). An installation component is provided on the left side of the support box (1). The installation component includes a moving plate (41). The outer wall of the moving plate (41) slides on the inner wall of the support box (1). An airbag (42) is fixedly connected through the front end of the moving plate (41).

2. The airtightness test tooling for the electric control valve of a gas meter according to claim 1, wherein: On the left and right ends of the support box (1) near the moving plate (41), a first threaded rod (43) is rotatably connected. The outer wall of the first threaded rod (43) is threadedly connected to the inner walls of the left and right ends of the moving plate (41). A first gear (44) is fixedly connected to the rear side of the moving plate (41). A second gear (45) is meshed with the right side of the first gear (44). The second gear (45) is rotatably connected to the inner wall of the support box (1).

3. The airtightness test tooling for the electronic control valve of a gas meter according to claim 2, characterized in that: A speed reduction motor (46) is provided at the rear side of the support box (1) near the second gear (45). The front end of the output shaft of the speed reduction motor (46) is fixedly connected to the rear end of a second threaded rod (55). There are two groups of the first gear (44) and the first threaded rod (43). The two groups of the first gear (44) and the first threaded rod (43) are symmetrically arranged with the center line of the support box (1) as the axis of symmetry.

4. A gas meter electronic control valve airtightness test tooling according to claim 1, characterized in that: There are two groups of the sealing gaskets (3). The front end of the other group of the sealing gaskets (3) is fixedly connected to the rear end of the moving plate (41). A through groove is provided in the moving plate (41) near the center of the sealing gasket (3).

5. A gas meter electronic control valve airtightness test tooling according to claim 1, characterized in that: An adjusting component is provided inside the bottom end of the support box (1). The adjusting component includes a backing plate (51). The outer wall of the backing plate (51) slides inside the support box (1). A limiting hole (52) is provided through the top end of the backing plate (51). A limiting block (53) is inserted into the inner wall of the limiting hole (52).

6. The airtightness testing tooling for the electronic control valve of a gas meter according to claim 5, wherein: A connecting rod (54) is hinged to the middle of the bottom end of the backing plate (51). A second threaded rod (55) is rotatably connected to the inner wall of the support box (1) near the bottom end of the backing plate (51). A slider (56) is threadedly connected to the outer wall of the second threaded rod (55).

7. The airtightness test tooling for the electric control valve of a gas meter according to claim 6, characterized in that: The outer wall of the bottom end of the slider (56) slides on the inner wall of the support box (1). The top end of the slider (56) is hinged to the right bottom end of the connecting rod (54).

8. A gas meter electric control valve airtightness test tooling according to claim 5, characterized in that: There are multiple groups of the limiting blocks (53). The multiple groups of the limiting blocks (53) are symmetrically arranged with the center line of the backing plate (51) as the axis of symmetry.

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