CN213579655U

CN213579655U - Bell jar type gas meter detection device

Info

Publication number: CN213579655U
Application number: CN202022737172.0U
Authority: CN
Inventors: 吴勇华; 张国明
Original assignee: Haiyan Xingchuang Electronic Co ltd
Current assignee: Haiyan Xingchuang Electronic Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-06-29
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a bell jar formula gas table detection device relates to gas table detection area, including the fan, the equal fixedly connected with connecting pipe of input and the output of fan, the equal fixedly connected with joint Assembly of one end that the fan was kept away from to the connecting pipe, and the middle part of one of them connecting pipe is provided with the flowmeter, and joint Assembly is including connecting, and the one end opening part of joint is provided with stop gear, and the outside middle part of joint is provided with inflatable component, fixedly connected with gasbag on the one end inner wall of joint. The utility model discloses an inside at the joint is provided with the gasbag, aerifys the gasbag through gas charging assembly for the gasbag expands and drives the joint of elastic sealing area with the gas table and seal, makes this device can adapt to the gas table of different model sizes, has improved the working range of this device, has also improved the sealed effect of this device simultaneously, can be with the spacing fixed of joint on the gas table through a plurality of clamp plates on the stop gear, has improved the stability that this device detected.

Description

Bell jar type gas meter detection device

Technical Field

The utility model relates to a gas table detection area, in particular to bell jar formula gas table detection device.

Background

With the popularization and application of natural gas, a large number of household gas meters enter families, at present, whether the household gas meters are manufacturers, gas companies or various provinces and cities metering verification stations, most of the metering verification of the household gas meters uses a bell-type metering detection device or a sonic nozzle metering verification device, media use air, at present, only a few places in China have the capacity of natural gas real-flow detection, and the household gas meters are large-flow metering detection devices aiming at flow meters, and for the metering verification of a membrane gas meter, whether the air verification or the natural gas verification is used, the influence on the metering precision of the membrane gas meter is not large, but with the development of the technology, the mechanical meter of the membrane gas meter is inevitably replaced by an electronic gas meter step by step, and at present, novel ultrasonic household gas meters and thermal quality household gas meters are gradually developed. However, for the flow sensor of the electronic gas meter, the flow sensor is affected by gas components, so that the correction coefficient of the natural gas needs to be calibrated, and a few manufacturers use a bell-type metering and calibrating device to perform natural gas tests on the electronic gas meter. The joints on the existing detection device are fixed, only the gas meter of one model size can be detected, the working range is small, the existing detection joints are connected with the gas meter through threads, the gas tightness is poor, and the detection precision of the gas meter is reduced. Therefore, it is necessary to provide a bell-type gas meter detection device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bell jar formula gas table detection device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the bell-type gas meter detection device comprises a fan, connecting pipes are fixedly connected to the input end and the output end of the fan, a joint component is fixedly connected to one end, away from the fan, of the connecting pipes, a flow meter is arranged in the middle of one connecting pipe, the joint component comprises a joint, a limiting mechanism is arranged at an opening of one end of the joint, an inflation component is arranged in the middle of the outer side of the joint, an air bag is fixedly connected to the inner wall of one end of the joint and is of an annular structure, an elastic sealing strip is bonded to the inner wall of the air bag, one end of the elastic sealing strip is connected with the inner wall of the joint through a sealing sleeve, an annular channel is formed in one end of the joint, and the inflation component.

Preferably, the limiting mechanism comprises a plurality of pressing plates distributed in an annular array, the pressing plates are of arc structures, and one end of the outer arc side of each pressing plate is connected with the inner wall of each joint through a compression spring.

Preferably, the middle part of the outer arc side of the pressing plate is fixedly connected with a guide post, the inner wall of an opening at one end of the joint is provided with a guide groove, and one end, far away from the pressing plate, of the guide post is inserted into the guide groove.

Preferably, a plurality of thread grooves corresponding to the pressing plate are formed in the inner wall of the opening at one end of the joint in a penetrating mode, threaded rods are formed in the thread grooves in a penetrating mode, and one end of each threaded rod corresponds to the other end of the outer arc side of the pressing plate.

Preferably, the inflation assembly comprises a sealing barrel, the sealing barrel is fixedly mounted in the middle of the outer side of the joint, a telescopic cylinder is fixedly connected to one end of the sealing barrel, the output end of the telescopic cylinder is connected with a piston through a push rod, and the piston is located inside the sealing barrel.

Preferably, the sealing cylinder is provided with a plurality of sealing cylinders, and the plurality of sealing cylinders are distributed in an annular array.

The utility model discloses a technological effect and advantage:

the utility model discloses an inside at the joint is provided with the gasbag, aerify the gasbag through gas charging assembly for the gasbag expands and drives the elasticity sealing strip sealed with the joint of gas table, makes this device can adapt to the gas table of different model sizes, has improved the working range of this device, has also improved the sealed effect of this device simultaneously, can be with the spacing fixed of joint on the gas table through a plurality of clamp plates on the stop gear, has improved the stability that this device detected, and then has improved the detection precision of this device.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic sectional view of the joint assembly of the present invention.

Fig. 3 is a schematic side view of the joint structure of the present invention.

In the figure: 1. a fan; 2. a connecting pipe; 3. a joint assembly; 4. a flow meter; 5. a joint; 6. a limiting mechanism; 7. an inflation assembly; 8. an air bag; 9. an elastic sealing tape; 10. sealing sleeves; 11. an annular channel; 12. pressing a plate; 13. a compression spring; 14. a guide post; 15. a guide groove; 16. a thread groove; 17. a threaded rod; 18. a sealing cylinder; 19. a telescopic cylinder; 20. a piston.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a as shown in fig. 1-3 bell jar formula gas table detection device, as shown in fig. 1, including fan 1, fan 1's the equal fixedly connected with connecting pipe 2 of input and output, the equal fixedly connected with joint Assembly 3 of one end of fan 1 is kept away from to connecting pipe 2, and the middle part of one of them connecting pipe 2 is provided with flowmeter 4, and flowmeter 4 can detect the demonstration precision of gas table.

As shown in fig. 2, the joint component 3 includes a joint 5, a limit mechanism 6 is arranged at an opening of one end of the joint 5, an inflation component 7 is arranged in the middle of the outer side of the joint 5, an air bag 8 is fixedly connected to the inner wall of one end of the joint 5, the air bag 8 is arranged in an annular structure, an elastic sealing strip 9 is bonded to the inner side wall of the air bag 8, the air bag 8 is matched with the elastic sealing strip 9 to seal the output end and the input end of the gas meter, one end of the elastic sealing strip 9 is connected with the inner wall of the joint 5 through a sealing sleeve 10, the sealing sleeve 10 on which the elastic sealing strip 9 is matched improves the sealing effect of the device, an annular channel 11 is arranged inside one end of.

As shown in fig. 2 and fig. 3, the limiting mechanism 6 includes a plurality of pressing plates 12 distributed in an annular array, the pressing plates 12 are set to be an arc-shaped structure, one end of the outer arc side of the pressing plates 12 is connected with the inner wall of the joint 5 through a pressing spring 13, the pressing spring 13 is set to enable the pressing plates 12 to be closely attached to the output end and the input end of the gas meter, the pressing springs 13 are matched to enable the output end and the input end of the gas meter to be collinear with the central line of the joint 5, a guide post 14 is fixedly connected to the middle portion of the outer arc side of the pressing plates 12, a guide groove 15 is formed in the inner wall of an opening at one end of the joint 5, one end of the guide post 14, which is far away from the pressing plates 12, is inserted into the guide groove 15, the guide post 14 and the guide groove 15 are matched to play a role in guiding the pressing plates 12, threaded rod 17 has been seted up in the inside of thread groove 16 runs through, and the one end of threaded rod 17 is corresponding with the outer arc side other end of clamp plate 12, and threaded rod 17 can play to clamp plate 12 with the cooperation of thread groove 16 and compress tightly spacing effect for a plurality of clamp plates 12 cooperation can be with the spacing fixed of output and input on the gas table, have improved the stability that this device detected.

Specifically, inflation assembly 7 is including sealed section of thick bamboo 18, sealed section of thick bamboo 18 fixed mounting is in the outside middle part that connects 5, the one end fixedly connected with telescopic cylinder 19 of sealed section of thick bamboo 18, telescopic cylinder 19's output is connected with piston 20 through the push rod, piston 20 is located the inside of sealed section of thick bamboo 18, telescopic cylinder 19 can drive piston 20 through the push rod and remove, air in the section of thick bamboo 18 will be sealed and inject into gasbag 8 through annular channel 11 in, sealed section of thick bamboo 18 is provided with a plurality ofly, a plurality of sealed sections of thick bamboo 18 are the annular array and distribute, the setting up of a plurality of sealed sections of thick bamboo 18 makes gasbag 8 expand fast, can seal output and input on the gas table fast, the sealed effect of this device has.

The utility model discloses the theory of operation:

when the device is installed, firstly, the output end and the input end of a gas meter are respectively inserted into the corresponding joint 5 on the joint component 3, then a plurality of pressing plates 12 in the joint 5 are contacted with the output end and the input end of the gas meter under the action of the pressing springs 13, the output end and the input end of the gas meter are kept at the central position of the joint 5 under the action of the pressing springs 13, then the threaded rod 17 is screwed, the threaded rod 17 is matched with the threaded groove 16 to drive the threaded rod 17 to move until the threaded rod 17 is contacted with the pressing plates 12, the pressing plates 12 are limited, so that the output end and the input end of the gas meter are limited and fixed by the cooperation of the pressing plates 12, then the telescopic cylinder 19 on the sealing cylinder 18 is started, the telescopic cylinder 19 drives the piston 20 to move through the push rod, and the piston 20 injects air in the sealing cylinder 18 into the air bag, the air bag 8 is expanded, the air bag 8 drives the elastic sealing strip 9 to contract, the elastic sealing strip 9 is in contact with the output end and the input end of the gas meter to seal the output end and the input end of the gas meter, and the elastic sealing strip 9 is matched with the sealing sleeve 10 on the elastic sealing strip, so that the sealing effect of the device is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Bell jar formula gas table detection device, including fan (1), its characterized in that: the air-inflation type fan is characterized in that the input end and the output end of the fan (1) are fixedly connected with connecting pipes (2), one end, far away from the fan (1), of each connecting pipe (2) is fixedly connected with a joint component (3), the middle of one connecting pipe (2) is provided with a flowmeter (4), each joint component (3) comprises a joint (5), a limiting mechanism (6) is arranged at an opening at one end of each joint (5), an air inflation component (7) is arranged in the middle of the outer side of each joint (5), an air bag (8) is fixedly connected to the inner wall of one end of each joint (5), the air bag (8) is of an annular structure, an elastic sealing strip (9) is bonded to the inner side wall of each air bag (8), one end of each elastic sealing strip (9) is connected with the inner wall of each joint (5) through a sealing sleeve (10), the inflation assembly (7) and the air bag (8) are communicated with the annular channel (11).

2. The bell-type gas meter detection device according to claim 1, characterized in that: stop gear (6) include a plurality of clamp plates (12) that are the annular array and distribute, clamp plate (12) set up to the arc structure, the outer arc side one end of clamp plate (12) is passed through pressure spring (13) and is connected with the inner wall that connects (5).

3. The bell-type gas meter detection device according to claim 2, characterized in that: the outer arc side middle part fixedly connected with guide post (14) of clamp plate (12), seted up guide way (15) on the one end opening inner wall of joint (5), the one end that clamp plate (12) were kept away from in guide post (14) inserts guide way (15).

4. The bell-type gas meter detection device according to claim 3, characterized in that: the inner wall of an opening at one end of the joint (5) is provided with a plurality of thread grooves (16) corresponding to the pressing plate (12) in a penetrating mode, the thread grooves (16) are internally provided with threaded rods (17) in a penetrating mode, and one end of each threaded rod (17) corresponds to the other end of the outer arc side of the pressing plate (12).

5. The bell-type gas meter detection device according to claim 4, characterized in that: the inflation assembly (7) comprises a sealing barrel (18), the sealing barrel (18) is fixedly installed in the middle of the outer side of the joint (5), a telescopic cylinder (19) is fixedly connected to one end of the sealing barrel (18), the output end of the telescopic cylinder (19) is connected with a piston (20) through a push rod, and the piston (20) is located inside the sealing barrel (18).

6. The bell-type gas meter detection device according to claim 5, characterized in that: the sealing cylinders (18) are arranged in a plurality, and the sealing cylinders (18) are distributed in an annular array.