Gas meter valve sealing performance test equipment

Abstract

The utility model relates to gas meter valve sealing performance test equipment, which comprises a test board main body and a display panel, the display panel is assembled on the front face of the test board body and used for displaying key parameters and information. A plurality of valve fixing devices for positioning valves are mounted on the test board main body; the valve fixing device is located below the display panel, a power socket and a switch button are arranged below the valve fixing device, a mounting cavity is formed in the test board main body, and an inspection mechanism used for detecting the airtightness of the valve is arranged in the mounting cavity; the gas meter valve sealing performance testing device is simple in structure and ingenious in design, pressure-resistant airtight equipment of a valve and switch valve inspection equipment of the valve are integrated in one testing table, the integration and simplification degree of the valve testing device is greatly improved, the space occupied by the device is reduced, and the testing efficiency is improved. And meanwhile, the valve clamp is arranged on the operation table, so that valve inspection is smoothly carried out, and the device has the advantages of simple structure, convenience in use, stability, high efficiency and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas meter valve testing tooling, in particular to a gas meter valve sealing testing device. Background Art

[0002] Gas meter valves are used on gas meters or sealing equipment to control the opening and closing of gas meters. They control the opening and closing of gas ports through valve seals to realize the opening and closing of gas motor valves. Gas motor valves need to be tested for air tightness and switch valve action during production. Currently, there is no standard tooling on the market that can meet the air tightness and switch valve action test. If non-standard customization is required, the procurement cost is high, the cycle is long, and the practicality is low.

[0003] In view of the above problems, it is necessary to improve them. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a gas meter valve sealing test device to overcome the above-mentioned technical problems existing in the existing related technology. The purpose of the utility model is to detect the gas meter valve in combination with the characteristics and test requirements of the gas meter valve, with low cost and high detection efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model patent is: a gas meter valve sealing test equipment, including a test bench body and a display panel; the display panel is assembled on the front of the test bench body, for displaying key parameters and information; a plurality of valve fixing devices for positioning valves are installed on the test bench body; the valve fixing device is located below the display panel, and a power socket and a switch button are provided below the valve fixing device, and an installation cavity is formed in the test bench body, and an inspection mechanism for detecting the air tightness of the valve is provided in the installation cavity.

[0006] As a preferred solution of the utility model, a plurality of valve fixing devices are arranged equidistantly along the length direction of the test bench body, and correspondingly, each valve fixing device is installed with a power socket and a switch button.

[0007] As a preferred solution of the utility model, the valve fixing device includes a positioning seat fixedly mounted on the test bench body, a limiting cylinder is fixedly mounted on the positioning seat, a positioning groove is formed in the limiting cylinder, an air outlet hole is formed in the positioning seat, the top of the air outlet hole extends into the positioning groove, and the bottom of the air outlet hole is connected to the inspection mechanism.

[0008] As a preferred solution of the utility model, an O-ring is arranged in the limiting cylinder, and when the valve is assembled in the limiting cylinder, the bottom of the valve abuts against the O-ring.

[0009] As a preferred solution of the utility model, positioning plates are fixedly provided on both sides of the limit cylinder, the positioning plates are horizontally placed on the positioning seats, support plates are vertically fixed outside the positioning plates, and the limit plates are installed on the top of the support plates, and a limit groove for clamping the valve is formed between the limit plates and the positioning plates.

[0010] As a preferred solution of the utility model, the top of the positioning plate and the top of the limiting cylinder are on the same horizontal plane.

[0011] As a preferred solution of the utility model, guide surfaces are formed on both sides of the top of the positioning plate close to the limiting groove, and the angle between the guide surface and the positioning plate in the vertical direction decreases from top to bottom.

[0012] As a preferred solution of the utility model, an inclined surface is formed on one side of the limiting plate close to the limiting groove, and the angle between the inclined surface and the vertical direction of the limiting plate increases from top to bottom.

[0013] As a preferred solution of the present utility model, the positioning plate, the supporting plate and the limiting plate are fixedly connected and integrally formed.

[0014] As a preferred solution of the utility model, the inner side of the top of the limiting cylinder has a guiding inclined surface which gradually expands along the valve insertion direction.

[0015] As a preferred solution of the utility model, the inspection mechanism includes a plurality of ventilation tubes connected to the air outlet holes, the bottoms of the plurality of ventilation tubes are connected with air path interfaces, the air path interfaces are connected with air source air inlet pipes, and an air source air inlet port is formed at the end of the air source air inlet pipe, which extends out of the test bench body.

[0016] As a preferred solution of the utility model, a pressure regulating valve for changing the pressure of the gas entering the gas circuit interface is installed on the gas source inlet pipe.

[0017] As a preferred solution of the utility model, a pressure sensor for real-time detection of the pressure inside the ventilation pipe is installed on the ventilation pipe, multiple pressure sensors are electrically connected to the main control board, the main control board is assembled on the test bench body, and the main control board and the display panel are connected by a wiring harness for transmitting data.

[0018] As a preferred solution of the utility model, a solenoid valve for controlling gas circulation is installed on the ventilation pipe, and the solenoid valve is connected to a switch button, and the switch button is used to control the switch of the solenoid valve.

[0019] A gas meter valve sealing test device method comprises the following steps:

[0020] Step 1, fix the valve to be tested on the valve fixing device;

[0021] Step 2, insert the valve plug into the power socket to switch the valve;

[0022] Step 3, set the valve to closed, and set the air pressure and time required for the air tightness test on the display panel;

[0023] Step 4, press the switch button;

[0024] Step 5: The gas source enters the gas source inlet pipe from the gas source inlet port and is regulated to be airtight by the pressure regulating valve.

[0025] The air pressure required for the sex test;

[0026] Step 6, the gas passing through the pressure regulating valve enters the branches of the gas path interface respectively, and then the gas passes through the solenoid valve directly to the gas outlet hole of the valve fixing device and directly to the valve to be tested;

[0027] Step 7: After reaching the specified pressure, the solenoid valve is closed and the gas circuit forms a pressure-maintaining state;

[0028] Step 8: A pressure sensor is provided on the ventilation pipe to detect pressure data in real time;

[0029] Step 9: The final pressure data is transmitted back to the main control board and displayed on the display panel.

[0030] The beneficial effects of the utility model are as follows: the utility model has a simple structure and an ingenious design. By setting up a gas meter valve sealing test device, the valve's pressure-resistant airtight equipment and valve switch valve inspection equipment are integrated into one test bench, which greatly improves the degree of simplicity of the collection of valve testing equipment and reduces the space occupied by the equipment. At the same time, a valve clamp is arranged on the operating table to facilitate the smooth conduct of the valve inspection. The utility model has the advantages of simple structure, easy use, stability and high efficiency, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the gas meter valve sealing test equipment of the utility model;

[0032] Figure 2 This is a diagram of the use status of the gas meter valve sealing test equipment of the utility model;

[0033] Figure 3 This is a rear view of the gas meter valve sealing test device after the protective door is removed;

[0034] Figure 4 This is a schematic diagram of the structure of the gas meter valve sealing test equipment after the protective door is removed according to the utility model;

[0035] Figure 5 This is a state diagram of the gas meter valve sealing test equipment of the utility model;

[0036] Figure 6 This is a schematic diagram of the structure of the valve fixing device of the utility model;

[0037] Figure 7 For this utility model Figure 1 A partial enlarged view of the A direction;

[0038] Explanation of the accompanying drawings: test bench body 1, display panel 2, valve fixing device 3, power socket 4, switch button 5, inspection mechanism 6, installation cavity 7, O-ring 8, solenoid valve 9, pressure sensor 10, main control board 11, wiring harness 12, air outlet hole 13, protective door 14, positioning seat 30, limiting cylinder 31, positioning groove 32, positioning plate 33, support plate 34, limiting plate 35, limiting groove 36, guide slope 37, inclined surface 38, guide surface 39, ventilation pipe 60, air path interface 61, air source air inlet pipe 62, air source air inlet 63, pressure regulating valve 64, valve 100. DETAILED DESCRIPTION

[0039] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Example:

[0042] like Figure 1-5 As shown, Figure 1 This is a schematic diagram of the structure of the gas meter valve sealing test equipment of the utility model; Figure 2 This is a diagram of the use status of the gas meter valve sealing test equipment of the utility model; Figure 3 This is a rear view of the gas meter valve sealing test device after the protective door is removed; Figure 4 This is a schematic diagram of the structure of the gas meter valve sealing test equipment after the protective door is removed according to the utility model; Figure 5 This is a state diagram of the gas meter valve sealing test equipment of the utility model.

[0043] A gas meter valve sealing test device aims to detect the gas meter valve in combination with the characteristics and test requirements of the gas meter valve, with low use cost and high detection efficiency; specifically, a gas meter valve sealing test device comprises a test bench body 1 and a display panel 2; the display panel 2 is assembled on the front of the test bench body 1, and is used to display key parameters and information; a plurality of valve fixing devices 3 for positioning the valve 100 are installed on the test bench body 1; the valve fixing device 3 is located below the display panel 2, and a power socket 4 and a switch button 5 are provided below the valve fixing device 3, and an installation cavity 7 is formed in the test bench body 1, and an inspection mechanism 6 for detecting the air tightness of the valve is provided in the installation cavity 7.

[0044] The power socket 4 is used to supply power to the valve. By supplying power to the valve and disconnecting power to the valve, the valve to be tested can be switched on and off, thereby conducting a switch valve action test; the switch button 5 controls the inspection mechanism 6 to conduct an air tightness inspection test. A protective door 14 is provided on the back of the inspection mechanism 6. When the protective door 14 is opened, it can be seen that the inspection mechanism 6 is provided with a ventilation pipe 60, an air circuit interface 61, an air source air inlet pipe 62, a solenoid valve 9, a pressure sensor 10, a main control board 11 and other components.

[0045] The utility model has a simple structure and ingenious design. By setting up a gas meter valve sealing test device, the valve pressure-resistant airtight equipment and valve switch valve inspection equipment are integrated into one test bench, which greatly improves the simplicity of the collection of valve testing equipment and reduces the space occupied by the equipment. At the same time, a valve clamp is arranged on the operating table to facilitate the smooth valve inspection. The utility model has the advantages of simple structure, easy use, stability and high efficiency.

[0046] Specifically, multiple valve fixing devices 3 are equidistantly arranged along the length direction of the test bench main body 1, and correspondingly, each valve fixing device 3 is installed with a power socket 4 and a switch button 5; wherein, multiple valve fixing devices 3 are detachably assembled on the test bench main body 1 to be compatible with a variety of valves, thereby improving convenience and versatility of use.

[0047] like Figure 6-7 As shown, Figure 6 This is a schematic diagram of the structure of the valve fixing device of the utility model; Figure 7 For this utility model Figure 1 A-axis partial enlarged view.

[0048] Specifically, the valve fixing device 3 includes a positioning seat 30 fixed on the test bench body 1, a limiting cylinder 31 is fixed on the positioning seat 30, a positioning groove 32 is formed in the limiting cylinder 31, an air outlet hole 13 is formed in the positioning seat 30, the top of the air outlet hole 13 extends into the positioning groove 32, and the bottom of the air outlet hole 13 is connected to the inspection mechanism 6; the valve 100 is installed from top to bottom, and the axis of the valve air inlet and the air outlet hole 13 coincide.

[0049] An O-ring 8 is arranged in the limiting cylinder 31. When the valve 100 is assembled in the limiting cylinder 31, the bottom of the valve 100 abuts against the O-ring 8. The O-ring 8 is squeezed inside the air outlet through hole 13 to achieve the effect of shaft sealing, so that the air tightness test can be carried out.

[0050] Positioning plates 33 are fixedly provided on both sides of the limiting cylinder 31. The positioning plates 33 are horizontally placed on the positioning seat 30. Support plates 34 are vertically fixedly provided outside the positioning plates 33. Limiting plates 35 are installed on the top of the support plates 34. Limiting grooves 36 for clamping the valve 100 are formed between the limiting plates 35 and the positioning plates 33. The valve 100 is installed in the limiting cylinder 31 from top to bottom, because the top of the positioning plate 33 and the top of the limiting cylinder 31 are on the same horizontal plane. After installation, the valve 100 is rotated so that the fixed structure on the valve 100 and the limiting groove 36 form a limiting fixation, which is convenient and quick.

[0051] Guide surfaces 39 are formed on both sides of the top of the positioning plate 33 near the limiting groove 36, and the angle between the guide surface 39 and the positioning plate 33 in the vertical direction decreases from top to bottom; an inclined surface 38 is formed on one side of the limiting plate 35 near the limiting groove 36, and the angle between the inclined surface 38 and the limiting plate 35 in the vertical direction increases from top to bottom.

[0052] Through the mutual cooperation of the inclined surface 38 and the guide surface 39, a trumpet-shaped structure is formed at the opening of the entire limiting groove 36. In this way, when the valve 100 is assembled to the valve fixing device 3, the fixing structure on the valve 100 rotates into the limiting groove 36, thereby increasing the contact area between the fixing structure of the valve 100 and the inclined surface 38 and the guide surface 39, thereby improving the assembly efficiency and assembly stability of the two, thereby ensuring assembly safety.

[0053] The positioning plate 33, the supporting plate 34 and the limiting plate 35 are fixedly connected and integrally formed, thereby improving the structural strength and overall firmness of the valve fixing device 3 and further ensuring the safety of use.

[0054] At the same time, the inner side of the top of the limiting cylinder 31 has a guiding slope 37 which gradually expands along the insertion direction of the valve 100. The setting of the guiding slope 37 increases the contact area with the bottom of the valve 100 when the valve 100 is assembled to the limiting cylinder 31 of the valve fixing device 3, so that the assembly positioning of the valve 100 is accurate, fast and reliable, and the assembly consistency is good, thereby improving the assembly efficiency of the two.

[0055] The inspection mechanism 6 includes a plurality of ventilation pipes 60 connected to the air outlet holes 13, the bottoms of the plurality of ventilation pipes 60 are connected to an air path interface 61, the air path interface 61 is connected to an air source air inlet pipe 62, and an air source air inlet port 63 is formed at the end of the air source air inlet pipe 62, and the air source air inlet port 63 extends out of the test bench body 1.

[0056] A pressure regulating valve 64 for changing the pressure of the gas entering the gas circuit interface 61 is installed on the gas source inlet pipe 62; the pressure regulating valve 64 is used to control the gas pressure that the valve is subjected to when performing an air tightness test.

[0057] A pressure sensor 10 for real-time detection of the pressure inside the ventilation pipe 60 is installed on the ventilation pipe 60. Multiple pressure sensors 10 are electrically connected to a main control board 11. The main control board 11 is assembled on the test bench body 1. The main control board 11 and the display panel 2 are connected by a wiring harness 12 for transmitting data. Among them, the pressure sensor 10 can feed back the air pressure that the valve is subjected to during the air tightness test to the main control board 11, and can monitor the air pressure in real time.

[0058] A solenoid valve 9 for controlling gas circulation is installed on the ventilation pipe 60. The solenoid valve 9 is connected to the switch button 5, and the switch button 5 is used to control the switch of the solenoid valve 9. When the solenoid valve 9 is used to conduct an airtightness experiment on the test bench main body 1, the solenoid valve 9 is first opened to ventilate the valve to be tested. After reaching the test pressure, the solenoid valve 9 is closed to achieve the effect of maintaining pressure.

[0059] The gas enters the test bench body 1 from the gas source inlet 63, and the gas entering the test bench body 1 is transferred to the gas circuit interface 61 after passing through the pressure regulating valve 64; the pressure regulating valve 64 can change the pressure of the gas entering the gas circuit interface 61, which is more convenient to adapt to different valves and different test requirements; and the gas in the gas circuit interface 61 will enter the solenoid valve 9 through the branch; the solenoid valve 9 is interconnected with the switch button 5 to control the switch of the solenoid valve 9; the gas passing through the solenoid valve 9 will enter the gas outlet hole 13 of the valve fixing device 3 through the air pipe and directly lead to the valve; a pressure sensor 10 is provided above the solenoid valve 9, which can detect the pressure in the air pipe, and the pressure detected by the pressure sensor 10 will be transmitted to the main control board 11 through the connecting line. The main control board 11 is fixed to the test bench body 1 by two fixing bolts, and the main control board 11 and the display panel 2 are connected by a wiring harness 12 for transmitting data.

[0060] A gas meter valve sealing test device method comprises the following steps:

[0061] Step 1, fixing the valve 100 to be tested on the valve fixing device 3;

[0062] Step 2, insert the valve plug into the power socket 4 to switch the valve;

[0063] Step 3, set the valve to close, and set the air pressure and time required for the air tightness test in the display panel 2;

[0064] Step 4, press the switch button 5;

[0065] Step 5, the gas source enters the gas source inlet pipe 62 from the gas source inlet port 63, and the gas pressure required for the air tightness test is adjusted by the pressure regulating valve 64;

[0066] Step 6, the gas passing through the pressure regulating valve 64 enters the branches of the gas circuit interface 61 respectively, and then the gas passes through the solenoid valve 9 directly to the gas outlet hole 13 of the valve fixing device 3 and directly to the valve to be tested 100;

[0067] Step 7, after reaching the specified pressure, the solenoid valve 9 is closed, and the gas circuit forms a pressure-maintaining state;

[0068] Step 8: A pressure sensor 10 is provided on the ventilation pipe 60 to detect pressure data in real time;

[0069] Step 9: The final pressure data is transmitted back to the main control board 11 and displayed on the display panel 2.

[0070] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0071] Although the following terms are used more frequently in this article: test bench body 1, display panel 2, valve fixing device 3, power socket 4, switch button 5, inspection mechanism 6, installation cavity 7, O-ring 8, solenoid valve 9, pressure sensor 10, main control board 11, wiring harness 12, air outlet hole 13, protective door 14, positioning seat 30, limiting cylinder 31, positioning groove 32, positioning plate 33, support plate 34, limiting plate 35, limiting groove 36, guiding inclined surface 37, inclined surface 38, guiding surface 39, vent pipe 60, air path interface 61, air source air inlet pipe 62, air source air inlet 63, pressure regulating valve 64, valve 100, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A gas meter valve sealing test device, characterized in that: The test bench comprises a test bench body (1) and a display panel (2); the display panel (2) is mounted on the front of the test bench body (1) and is used to display key parameters and information; a plurality of valve fixing devices (3) for positioning valves (100) are mounted on the test bench body (1); the valve fixing devices (3) are located below the display panel (2), a power socket (4) and a switch button (5) are provided below the valve fixing devices (3), an installation cavity (7) is formed in the test bench body (1), and an inspection mechanism (6) for detecting the air tightness of the valve is provided in the installation cavity (7).

2. A gas meter valve sealing test device according to claim 1, characterized in that: The valve fixing device (3) comprises a positioning seat (30) fixedly mounted on the test bench body (1), a limiting cylinder (31) fixedly mounted on the positioning seat (30), a positioning groove (32) formed in the limiting cylinder (31), an air outlet hole (13) formed in the positioning seat (30), the top of the air outlet hole (13) extending into the positioning groove (32), and the bottom of the air outlet hole (13) connected to the inspection mechanism (6).

3. A gas meter valve sealing test device according to claim 2, characterized in that: Positioning plates (33) are fixedly provided on both sides of the limiting cylinder (31). The positioning plates (33) are horizontally placed on the positioning seat (30). A supporting plate (34) is vertically fixedly provided outside the positioning plate (33). A limiting plate (35) is installed on the top of the supporting plate (34). A limiting groove (36) for clamping the valve (100) is formed between the limiting plate (35) and the positioning plate (33).

4. A gas meter valve sealing test device according to claim 3, characterized in that: Guide surfaces (39) are formed on both sides of the top of the positioning plate (33) close to the limiting groove (36), and the included angle between the guide surface (39) and the positioning plate (33) in the vertical direction decreases from top to bottom.

5. A gas meter valve sealing test device according to claim 3, characterized in that: An inclined surface (38) is formed on one side of the limiting plate (35) close to the limiting groove (36), and the included angle between the inclined surface (38) and the limiting plate (35) in the vertical direction increases from top to bottom.

6. A gas meter valve sealing test device according to claim 3, characterized in that: The positioning plate (33), the supporting plate (34) and the limiting plate (35) are fixedly connected and integrally formed.

7. A gas meter valve sealing test device according to claim 1 or 2, characterized in that: The inspection mechanism (6) comprises a plurality of ventilation pipes (60) connected to the air outlet holes (13); the bottoms of the plurality of ventilation pipes (60) are connected to air circuit interfaces (61); the air circuit interfaces (61) are connected to air source air inlet pipes (62); an air source air inlet port (63) is formed at the end of the air source air inlet pipe (62); the air source air inlet port (63) extends out of the test bench body (1).

8. A gas meter valve sealing test device according to claim 7, characterized in that: The gas source inlet pipe (62) is provided with a pressure regulating valve (64) for changing the pressure of gas entering the gas circuit interface (61).

9. A gas meter valve sealing test device according to claim 7, characterized in that: A pressure sensor (10) for real-time detection of the pressure in the ventilation pipe (60) is installed on the ventilation pipe (60); the plurality of pressure sensors (10) are electrically connected to a main control board (11); the main control board (11) is mounted on a test bench body (1); and the main control board (11) and the display panel (2) are connected by a wiring harness (12) for data transmission.

10. A gas meter valve sealing test device according to claim 7, characterized in that: The ventilation pipe (60) is provided with a solenoid valve (9) for controlling the flow of gas. The solenoid valve (9) is connected to a switch button (5). The switch button (5) is used to control the switch of the solenoid valve (9).

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