Multi-station gas meter calibrating device

Abstract

The utility model provides a multi-station gas meter calibrating device, which belongs to the technical field of gas meter calibration and comprises an operation table, a controller and a top frame, an air cylinder and a lifting plate are arranged on the inner side of the top frame, the top frame is connected with a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is connected with a first inserting barrel and a first electromagnetic valve, and the gas outlet pipe is connected with a second inserting barrel and a gas guide pipe. The air guide pipe is connected with a second electromagnetic valve, the top frame is connected with a first contact switch and a second contact switch, and a first telescopic spring and an extrusion rod are arranged on one side of the first insertion cylinder; the gas meter error detection device has the beneficial effects that automatic error detection can be carried out on a plurality of gas meters at one time, the operation process is simplified, the working efficiency is improved, the labor intensity is reduced, residual gas in the gas outlet pipe can be discharged and collected through the communicating pipe after the detection is finished, and the detection efficiency is improved. Therefore, air pollution and personnel injury caused by diffusion of residual gas after the gas meter is taken down are avoided, the residual gas can be recycled, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas meter calibration, in particular to a multi-station gas meter calibration device. Background Art

[0002] The calibration items of gas meters mainly include appearance, sealing, pressure loss and indication error. Among them, the indication error is directly related to trade settlement, and the sealing involves operational safety. Therefore, the metering characteristics and sealing of gas meters are the indicators that gas companies and users are most concerned about. At present, since the medium passed by household gas meters is generally natural gas, which is flammable and explosive, in addition to meeting the qualified indication error, the most important guarantee for gas meters is its safety.

[0003] Most of the existing gas meters rely on manual operation to connect the air inlet and outlet pipes to the corresponding interfaces on the gas meter. After the calibration is completed, the gas meter must be disassembled to facilitate the calibration of the next gas meter. The operation is relatively cumbersome, which leads to low work efficiency. Moreover, after disassembly, it is easy to cause gas leakage, causing environmental pollution and even causing physical harm to the operator. How to invent a multi-station gas meter calibration device to improve these problems has become an urgent problem to be solved by technicians in this field. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a multi-station gas meter calibration device, which aims to improve the problem that the operation is relatively cumbersome, which leads to low work efficiency, and is prone to gas leakage after disassembly, causing environmental pollution and physical damage to the operator.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a multi-station gas meter calibration device, comprising an operating table, a controller and a top frame, wherein a cylinder and a lifting plate are provided on the inner side of the top frame, the top frame is connected with an air inlet pipe and an air outlet pipe, the air inlet pipe is connected with a plug-in tube 1 and a solenoid valve 1, the air outlet pipe is connected with a plug-in tube 2 and an air guide pipe, the air guide pipe is connected with a solenoid valve 2, the top frame is connected with a contact switch 1 and a contact switch 2, and a telescopic spring 1 and an extrusion rod are provided on one side of the plug-in tube 1.

[0007] Preferably, the upper end of the operating table is fixedly connected to the controller and the top frame respectively, the top frame is slidingly connected to the lifting plate, the lower side wall of the lifting plate is fixedly connected to the cylinder, the lower end of the cylinder is fixedly connected to the operating table, and the upper side wall of the lifting plate is provided with a plurality of evenly distributed card slots, the card slots are connected to the gas meter, and one end of the gas meter is fixedly connected to connector 1 and connector 2.

[0008] Preferably, the top frame is connected to a detector, a connecting pipe and a collecting pipe are provided at the upper end of the top frame, and the side walls of the top frame are fixedly connected to contact switch 1 and contact switch 2 respectively, and the contact switch 1 and contact switch 2 are respectively located on both sides of the air intake pipe.

[0009] Preferably, the outer wall of the air intake pipe located at the upper end of the top frame is fixedly connected to the solenoid valve 1, and the end of the air intake pipe located on the inner side of the top frame is fixedly connected to the piston ring 1.

[0010] Preferably, the plug-in tube 1 is arranged in a "T" shape, and the plug-in tube is sleeved on the outer wall of the air intake pipe. The outer wall of the plug-in tube 1 is fixedly connected with a fixing block, and the fixing block is fixedly connected to the extrusion rod.

[0011] Preferably, the telescopic spring is sleeved on the outer wall of the air intake pipe, and the two ends of the telescopic spring are respectively fixedly connected to the side wall of the top frame and the side wall of the plug-in tube. The inner diameter of the plug-in tube is larger than the outer diameter of the connector.

[0012] Preferably, the air outlet pipe is arranged in an "L" shape, one end of the air outlet pipe is fixedly connected to the detector, the other end of the air outlet pipe is fixedly connected to a piston ring 2, the outer wall of the air outlet pipe is slidingly connected to the plug-in tube 2, the outer wall of the air outlet pipe is provided with a telescopic spring 2, the two ends of the telescopic spring 2 are respectively fixedly connected to the side wall of the top frame and the side wall of the plug-in tube 2, and the inner diameter of the plug-in tube 2 is larger than the inner diameter of the joint 2.

[0013] Preferably, the outer wall of the air outlet pipe is fixedly connected to the air guide pipe, the air guide pipe is fixedly connected to the second solenoid valve, the end of the air guide pipe away from the air outlet pipe is fixedly connected to the connecting pipe, and the connecting pipe is fixedly connected to the collecting pipe.

[0014] The beneficial effects of the utility model are:

[0015] By squeezing contact switch 1 and contact switch 2 through the squeezing rod, so that solenoid valve 1 opens and the gas is transported to the inside of the gas meter through the air inlet pipe. At the same time, solenoid valve 2 closes the air guide pipe, so that the internal gas entering the gas meter is transported from the air outlet pipe to the detector for detection. In this way, multiple gas meters can be automatically error-checked at one time, which simplifies the operating process, improves work efficiency and reduces labor intensity. In addition, after the calibration is completed, solenoid valve 2 opens and the external fan connected to the collection pipe is started at the same time, and the residual gas inside the air outlet pipe is discharged and collected through the connecting pipe, so as to avoid the residual gas from spreading after the gas meter is removed, causing air pollution and personal injury, and the residual gas can be recycled to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of a multi-station gas meter calibration device provided by the embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the lifting plate structure of a multi-station gas meter calibration device provided by an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the front structure of a top frame of a multi-station gas meter calibration device provided by an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the rear structure of a top frame of a multi-station gas meter calibration device provided by an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of a plug-in tube of a multi-station gas meter calibration device provided by an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of a plug-in tube 2 of a multi-station gas meter calibration device provided by an embodiment of the present utility model.

[0023] In the figure: 1. Operating table; 2. Controller; 3. Cylinder; 4. Lifting plate; 41. Card slot; 5. Gas meter; 51. Connector 1; 52. Connector 2; 6. Detector; 7. Connecting pipe; 8. Top rack; 9. Contact switch 1; 10. Contact switch 2; 11. Connector 1; 12. Connector 2; 13. Exhaust pipe; 14. Collecting pipe; 15. Inlet pipe; 16. Solenoid valve 1; 17. Telescopic spring 1; 18. Extrusion rod; 19. Fixed block; 21. Air guide pipe; 20. Piston ring 1; 22. Solenoid valve 2; 23. Telescopic spring 2; 24. Piston ring 2. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example, refer to Figures 1-6 A multi-station gas meter calibration device includes an operating table 1, a controller 2 and a top frame 8. A cylinder 3 and a lifting plate 4 are provided on the inner side of the top frame 8. The top frame 8 is connected to an air inlet pipe 15 and an air outlet pipe 13. The air inlet pipe 15 is connected to a plug-in cylinder 11 and a solenoid valve 16. The air outlet pipe 13 is connected to a plug-in cylinder 12 and an air guide pipe 21. The air guide pipe 21 is connected to a solenoid valve 22. The top frame 8 is connected to a contact switch 9 and a contact switch 10. A telescopic spring 17 and an extrusion rod 18 are provided on one side of the plug-in cylinder 11.

[0026] Furthermore, the upper end of the operating table 1 is fixedly connected to the controller 2 and the top frame 8 respectively, the inside of the top frame 8 is slidably connected to the lifting plate 4, the lower side wall of the lifting plate 4 is fixedly connected to the cylinder 3, the lower end of the cylinder 3 is fixedly connected to the operating table 1, and the upper side wall of the lifting plate 4 is provided with a number of evenly distributed card slots 41, the card slots 41 are card-connected with the gas meter 5, and one end of the gas meter 5 is fixedly connected with connector 1 51 and connector 2 52.

[0027] It should be noted that: the controller 2 is electrically connected to the cylinder 3. When the gas meter 5 is calibrated, the gas meter 5 is first clamped inside the card slot 41 to be initially fixed. Then the cylinder 3 is started to drive the lifting plate 4 to move upward, and the gas meter 5 is simultaneously driven upward. After installation, the gas meter 5 can make the connector 1 51 and the connector 2 52 located directly below the plug-in tube 1 11 and the plug-in tube 2 12 respectively. In addition, the outer walls of the connector 1 51 and the connector 2 52 are provided with rubber sealing rings. During the upward movement of the lifting plate 4, the connector 1 51 and the connector 2 52 will be inserted into the inside of the plug-in tube 1 11 and the plug-in tube 2 12 respectively, so as to quickly complete the docking work and facilitate the subsequent inspection of the gas meter 5.

[0028] Reference Figure 2-Figure 6, further; the top frame 8 is connected to the detector 6, the upper end of the top frame 8 is provided with a connecting pipe 7 and a collecting pipe 14, the side walls of the top frame 8 are respectively fixedly connected to the contact switch 1 9 and the contact switch 2 10, and the contact switch 1 9 and the contact switch 2 10 are respectively located on both sides of the intake pipe 15; the outer wall of the intake pipe 15 located at the upper end of the top frame 8 is fixedly connected to the solenoid valve 16, and the end of the intake pipe 15 located on the inner side of the top frame 8 is fixedly connected to a piston ring 20; the plug-in cylinder 11 is arranged in a "T" shape, and the plug-in cylinder 11 is sleeved on the outer wall of the intake pipe 15, and the outer wall of the plug-in cylinder 11 is fixedly connected to a fixed block 19, and the fixed block 19 is fixedly connected to the extrusion rod 18; a telescopic spring 17 is sleeved on the outer wall of the intake pipe 15, and the two ends of the telescopic spring 17 are respectively connected to the side walls of the top frame 8 and The side wall of the plug-in tube 11 is fixedly connected, and the inner diameter of the plug-in tube 11 is larger than the outer diameter of the joint 51; the air outlet pipe 13 is arranged in an "L" shape, one end of the air outlet pipe 13 is fixedly connected to the detector 6, and the other end of the air outlet pipe 13 is fixedly connected to a piston ring 24, the outer wall of the air outlet pipe 13 is slidingly connected to the plug-in tube 2 12, and the outer wall of the air outlet pipe 13 is provided with a telescopic spring 23, and the two ends of the telescopic spring 23 are respectively fixedly connected to the side wall of the top frame 8 and the side wall of the plug-in tube 2 12, and the inner diameter of the plug-in tube 2 12 is larger than the inner diameter of the joint 52; the outer wall of the air outlet pipe 13 is fixedly connected to the air guide pipe 21, and the air guide pipe 21 is fixedly connected to the solenoid valve 22, and the end of the air guide pipe 21 away from the air outlet pipe 13 is fixedly connected to the connecting pipe 7, and the connecting pipe 7 is fixedly connected to the collecting pipe 14.

[0029] It should be noted that: after the connector 1 51 and the connector 2 52 are inserted into the interior of the plug-in tube 1 11 and the plug-in tube 2 12, as the lifting plate 4 rises, the connector 1 51 and the connector 2 52 will squeeze the plug-in tube 1 11 and the plug-in tube 2 12, thereby compressing the telescopic spring 17 and the telescopic spring 2 23, and the piston ring 1 20 and the piston ring 2 24 will be inserted into the interior of the connector 1 51 and the connector 2 52 respectively, and the piston ring 1 20 and the piston ring 2 24 will be connected to the inner wall pistons of the connector 1 51 and the connector 2 52 to ensure the sealing of the connection process, and the two extrusion rods 18 are respectively located at the positive ends of the contact switch 1 9 and the contact switch 2 10. Therefore, when the plug-in cylinder 11 moves upward, the squeezing rod 18 squeezes the contact switch 1 9 and the contact switch 2 10, and the contact switch 1 9 and the contact switch 2 10 are electrically connected to the solenoid valve 16 and the solenoid valve 2 22 respectively. When the contact switch 1 9 is squeezed, the solenoid valve 16 opens, and the gas is delivered to the inside of the gas meter 5 through the air inlet pipe 15. At the same time, the solenoid valve 22 closes the air guide pipe 21, so that the internal gas entering the gas meter 5 is delivered from the air outlet pipe 13 to the detector 6 for detection. In this way, multiple gas meters 5 can be automatically error-checked at one time, which simplifies the operation process, improves work efficiency, and reduces labor intensity.

[0030] In addition, after the calibration is completed, the lifting plate 4 is controlled to move downward by the cylinder 3. When the extrusion rod 18 is separated from the contact switch 1 9 and the contact switch 2 10, the solenoid valve 1 16 is closed, and the air inlet pipe 15 no longer takes in air. The solenoid valve 2 22 is opened and the external fan connected to the collection pipe 14 is started at the same time, and the residual gas inside the outlet pipe 13 is discharged and collected through the connecting pipe 7, so as to avoid the residual gas from spreading after the gas meter 5 is removed, causing air pollution and personal injury, and the residual gas can be recycled to reduce costs.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multi-station gas meter calibration device, comprising an operating table (1), a controller (2) and a top frame (8), wherein a cylinder (3) and a lifting plate (4) are provided on the inner side of the top frame (8), characterized in that: The top frame (8) is connected to an air inlet pipe (15) and an air outlet pipe (13), the air inlet pipe (15) is connected to a plug-in tube (11) and a solenoid valve (16), the air outlet pipe (13) is connected to a plug-in tube (12) and an air guide pipe (21), the air guide pipe (21) is connected to a solenoid valve (22), the top frame (8) is connected to a contact switch (9) and a contact switch (10), and a telescopic spring (17) and an extrusion rod (18) are provided on one side of the plug-in tube (11).

2. A multi-station gas meter calibration device according to claim 1, characterized in that: The upper end of the operating table (1) is fixedly connected to the controller (2) and the top frame (8), respectively. The interior of the top frame (8) is slidably connected to the lifting plate (4). The lower side wall of the lifting plate (4) is fixedly connected to the cylinder (3). The lower end of the cylinder (3) is fixedly connected to the operating table (1). The upper side wall of the lifting plate (4) is provided with a plurality of evenly distributed card slots (41). The card slots (41) are card-engaged with the gas meter (5). One end of the gas meter (5) is fixedly connected to a connector 1 (51) and a connector 2 (52).

3. A multi-station gas meter calibration device according to claim 2, characterized in that: The top frame (8) is connected to a detector (6), and a connecting pipe (7) and a collecting pipe (14) are provided at the upper end of the top frame (8). The side walls of the top frame (8) are fixedly connected to a contact switch 1 (9) and a contact switch 2 (10), respectively. The contact switch 1 (9) and the contact switch 2 (10) are respectively located on both sides of the air inlet pipe (15).

4. A multi-station gas meter calibration device according to claim 1, characterized in that: The outer wall of the air intake pipe (15) located at the upper end of the top frame (8) is fixedly connected to the solenoid valve (16), and the end of the air intake pipe (15) located on the inner side of the top frame (8) is fixedly connected to the piston ring (20).

5. A multi-station gas meter calibration device according to claim 1, characterized in that: The plug-in tube (11) is arranged in a "T" shape, and the plug-in tube (11) is sleeved on the outer wall of the air intake pipe (15). The outer wall of the plug-in tube (11) is fixedly connected to a fixing block (19), and the fixing block (19) is fixedly connected to the extrusion rod (18).

6. A multi-station gas meter calibration device according to claim 2, characterized in that: The telescopic spring (17) is sleeved on the outer wall of the air inlet pipe (15), and the two ends of the telescopic spring (17) are fixedly connected to the side wall of the top frame (8) and the side wall of the plug-in tube (11), respectively. The inner diameter of the plug-in tube (11) is larger than the outer diameter of the joint (51).

7. A multi-station gas meter calibration device according to claim 3, characterized in that: The air outlet pipe (13) is arranged in an "L" shape, one end of the air outlet pipe (13) is fixedly connected to the detector (6), the other end of the air outlet pipe (13) is fixedly connected to a piston ring 2 (24), the outer wall of the air outlet pipe (13) is slidably connected to the plug-in tube 2 (12), the outer wall of the air outlet pipe (13) is provided with a telescopic spring 2 (23), the two ends of the telescopic spring 2 (23) are respectively fixedly connected to the side wall of the top frame (8) and the side wall of the plug-in tube 2 (12), the inner diameter of the plug-in tube 2 (12) is larger than the inner diameter of the joint 2 (52).

8. A multi-station gas meter calibration device according to claim 3, characterized in that: The outer wall of the air outlet pipe (13) is fixedly connected to the air guide pipe (21), the air guide pipe (21) is fixedly connected to the second solenoid valve (22), the end of the air guide pipe (21) away from the air outlet pipe (13) is fixedly connected to the connecting pipe (7), and the connecting pipe (7) is fixedly connected to the collecting pipe (14).

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