CN216621386U - Novel gas meter leakproofness detects frock - Google Patents

Abstract

The utility model relates to a novel gas meter sealing performance detection tool, which comprises a cylinder fixed on a support, wherein a cylinder barrel of the cylinder is fixedly connected with a fixed plate, the fixed plate is provided with a hole through which a ventilation screw rod passes, a ventilation channel through which gas passes is arranged in the ventilation screw rod, the ventilation screw rod is fixedly connected with the fixed plate through a first nut, the ventilation screw rod vertically passes through the fixed plate and a push plate, the push plate is movably connected with the ventilation screw rod, the upper end of the push plate is fixedly connected with a telescopic rod of the cylinder, the ventilation screw rod passing through the push plate is sequentially sleeved with a first gasket, a rubber gasket, a second gasket and a second nut, and the diameter of the rubber gasket is larger than that of the first gasket and the second gasket. The utility model provides a novel gas meter sealing performance detection tool, which effectively solves the problem that a nut needs to be screwed in a suspension type leakage test and effectively improves the production efficiency.

Description

Novel gas meter leakproofness detects frock

Technical Field

The utility model relates to the field of gas meter detection, in particular to a novel gas meter sealing performance detection tool.

Background

The gas meter is a metering device with the functions of automatically accumulating and recording the usage amount of gas, and consists of a sealing shell, a machine core and a counter, the most common gas meter is a membrane gas meter, the performance index of the membrane gas meter conforms to the national standard GB/T6968-2011, the shell of the gas meter needs to meet the requirement of good sealing performance, otherwise, the gas meter can endanger the safety of life and property of people once gas with certain pressure leaks from the sealing shell in the using process, so the sealing performance detection of the gas meter is very important, and the sealing performance detection of the gas meter needs to be carried out before the gas meter leaves a factory.

At present, two testing methods exist, one is a pressing type, and the other is a suspension type; because the shell of the gas meter is formed by the upper shell, the lower shell, the sealing gasket and the shell clamp in a press sealing mode, the press head connected with the gas pipe is directly pressed on the top of the upper shell in a downward pressing mode, and thus the sealing gasket between the upper shell and the lower shell is also subjected to the same pressure, the risk of misjudgment is easily caused, and the downward pressing mode is gradually eliminated; the suspension type is that customized nuts are screwed on two joints of the upper shell, and then the meter is hung on the tool, so that the nut is stressed when the meter is tested for leakage, the stress-free sealing gasket is in accordance with the actual installation, and the suspension type replaces the pressing type to be widely used; however, the suspended type screw nut needs to be screwed in during testing, so that the production efficiency is greatly reduced, and the labor intensity of workers is increased.

In order to solve the above problems, workers in the field have conducted various studies on ecological revetments:

chinese patent application 201721678849.X discloses a meter connector that gas table casing leakproofness detected, and the cylinder end is fixed in the frame, and the cylinder front end is fixed on deciding the board, and the piston rod is fixed on the movable plate, and air inlet screw rod upper portion is fixed on deciding the board with nut and fixation nut clamp, and movable plate and uide bushing are passed at the air inlet screw rod middle part, uide bushing and movable plate welded fastening, and the spacing end cap is screwed up after air inlet screw rod lower part sheathes in the sealing rubber sleeve, and quick connector is connected with the air inlet screw rod upper end. The utility model discloses an improve the reliability and the repeatability that sealed table connects, improve the detection efficiency of frock, improve the life of frock, choose for use pneumatic means as drive arrangement to have stronger adaptability to impact load and overload load. But its spacing end cap of twisting, the air channel becomes unusual narrow and small, has seriously influenced the efficiency when ventilating, and when sealed gum cover inflation monitoring accomplished the back, when starting cylinder piston rod and driving the movable plate and form reverse displacement, causes spacing end cap to drop easily to influence work efficiency.

Therefore, there is a need for further improvement in the leak detection tool of the new gas meter to solve the above-mentioned disadvantages.

Disclosure of Invention

The purpose of the application is: lie in solving and overcoming prior art and using not enough, provide a novel gas meter leakproofness and detect frock, effectively solve suspension type leak test and need twist the nut problem, improved production efficiency effectively.

The purpose of this application is accomplished through following technical scheme, a novel gas meter leakproofness detects frock, including being fixed in the cylinder on the support, cylinder and fixed plate fixed connection, the hole that the screw rod passed is seted up to the fixed plate, the screw rod of ventilating passes through first nut and fixed plate fixed connection, the screw rod of ventilating passes perpendicularly fixed plate and push pedal, the push pedal with screw rod swing joint ventilates, push pedal upper end and cylinder telescopic link fixed connection pass the screw rod of ventilating of push pedal cup joints first packing ring, rubber pad, second packing ring, second nut in proper order.

Preferably, the ventilation screw is internally provided with a ventilation channel for gas to pass through.

Preferably, the diameter of the rubber pad is larger than the diameters of the first gasket and the second gasket.

Compared with the prior art, the application has the following obvious advantages and effects:

1. according to the utility model, the scheme does not need to screw a nut, and suspension type leakage test is realized, so that the production efficiency is effectively improved.

2. According to the utility model, the push plate is driven by the air cylinder, so that the rubber pad is extruded and expanded, fastening and sealing of a gas meter interface are realized, the sealing effect is good, the automation is high, and the production efficiency is improved.

Drawings

Fig. 1 is the overall structure layout of the novel gas meter leakproofness of this application detects frock.

Fig. 2 is a front view of the novel gas meter sealing performance detection tool in the present application.

Fig. 3 is a schematic structural view of an air duct in the present application.

Fig. 4 is a schematic structural view of a tab in the present application.

Reference numbers in this application:

the device comprises a cylinder 1, a cylinder 2, a fixing plate 3, a hole 31, a ventilation screw rod 4, a ventilation channel 41, a first nut 5, a push plate 6, a telescopic rod 7, a first gasket 8, a rubber gasket 9, a second gasket 10, a second nut 11 and a meter connector 12.

Detailed Description

Specific embodiments thereof are described below in conjunction with the following description and the accompanying drawings to teach those skilled in the art how to make and use the best mode of the present application. For the purpose of teaching application principles, the following conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations from these embodiments that fall within the scope of the application. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the present application. In the present application, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, and are not used to limit the scope of the utility model, and the relative relationship between the terms and the corresponding terms may be changed or adjusted without substantial technical change. Thus, the present application is not limited to the particular embodiments described below, but only by the claims and their equivalents.

Fig. 1 to 4 show a specific embodiment of the novel gas meter sealing performance detection tool of the present application.

The utility model relates to a novel gas meter sealing performance detection tool which comprises a cylinder 1 fixed on a support, wherein a cylinder barrel 2 of the cylinder 1 is fixedly connected with a fixed plate 3, the fixed plate 3 is provided with a hole 31 through which a ventilation screw 4 passes, a ventilation channel 41 through which gas passes is arranged inside the ventilation screw 4, the ventilation screw 4 is fixedly connected with the fixed plate 3 through a first nut 5, the ventilation screw 4 vertically passes through the fixed plate 3 and a push plate 6, the push plate 6 is movably connected with the ventilation screw 4, the upper end of the push plate 6 is fixedly connected with an expansion link 7 of the cylinder 1, the ventilation screw 4 passing through the push plate 6 is sequentially sleeved with a first gasket 8, a rubber gasket 9, a second gasket 10 and a second nut 11, and the diameter of the rubber gasket 9 is larger than the diameters of the first gasket 8 and the second gasket 10. The utility model provides a novel gas meter sealing performance detection tool, which effectively solves the problem that a nut needs to be screwed in a suspension type leakage test and effectively improves the production efficiency.

As shown in fig. 1, in the present embodiment,

a novel gas meter sealing performance detection tool comprises a cylinder 1 fixed on a support, a cylinder barrel 2 of the cylinder 1 is fixedly connected with a fixed plate 3, the fixed plate 3 and the cylinder 1 are kept still, a hole 31 through which a ventilation screw 4 passes is formed in the fixed plate 3, the ventilation screw 4 is fixedly connected with the fixed plate 3 through a first nut 5, the ventilation screw 4 is ensured to be stable, the ventilation screw 4 vertically passes through the fixed plate 3 and a push plate 6, the push plate 6 is movably connected with the ventilation screw 4, the upper end of the push plate 6 is fixedly connected with a telescopic rod 7 of the cylinder 1, the push plate 6 can move in a telescopic mode under the action of the cylinder 1, the ventilation screw 4 passing through the push plate 6 is sequentially sleeved with a first gasket 8, a rubber gasket 9, a second gasket 10 and a second nut 11, the diameter of the rubber gasket 9 is larger than that of the first gasket 8 and the second gasket 10, when the push plate 6 moves in a telescopic mode, the rubber gasket 9 generates an expansion effect due to extrusion, reach sealed effect, when push pedal 6 contracts back, rubber pad 9 inflation effect moves back, reply original state, and rubber pad 9 has been protected better to first packing ring 8, second packing ring 10, firmly fixes rubber pad 9 through second nut 11 effectively, can not do at rubber pad 9 and receive the extrusion and when replying, the condition that rubber pad 9 takes place to drop, in addition, a set of leakproofness detects the shared two sets of screw rods 4 and the connecting piece of ventilating of being equipped with in the frock.

It should be noted that, as shown in fig. 3, in the embodiment of the present application,

the ventilation screw 4 is provided with a ventilation channel 41 for gas to pass through, one end of the ventilation channel is connected with a gas pipe for tightness detection, and the other end of the ventilation channel is connected with a meter connector 12 of a gas meter.

When the utility model is used: the utility model provides a novel gas meter sealing performance detection tool, which aims at effectively solving the problem that a nut needs to be screwed in a suspension type leakage test, realizes the fastening and sealing of a gas meter interface, has a good sealing effect and high automation and effectively improves the production efficiency.

Since any modifications, equivalents, improvements, etc. made within the spirit and principles of the application may readily occur to those skilled in the art, it is intended to be included within the scope of the claims of this application.

Claims (3)

1. The utility model provides a novel gas meter leakproofness detects frock, including being fixed in the cylinder on the support, its characterized in that: the air cylinder barrel is fixedly connected with a fixing plate, a hole through which an air-ventilating screw rod penetrates is formed in the fixing plate, the air-ventilating screw rod is fixedly connected with the fixing plate through a first nut, the air-ventilating screw rod vertically penetrates through the fixing plate and a push plate, the push plate is movably connected with the air-ventilating screw rod, the upper end of the push plate is fixedly connected with an air cylinder telescopic rod, and the air-ventilating screw rod penetrating through the push plate is sequentially sleeved with a first gasket, a rubber gasket, a second gasket and a second nut.

2. The novel gas meter sealing performance detection tool of claim 1, characterized in that: and an air channel for air to pass through is arranged in the air vent screw.

3. The novel gas meter sealing performance detection tool of claim 1, characterized in that: the diameter of the rubber pad is larger than the diameters of the first gasket and the second gasket.

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