CN218239229U

CN218239229U - Ultrasonic gas meter airtightness testing device

Info

Publication number: CN218239229U
Application number: CN202222413049.2U
Authority: CN
Inventors: 刘矿; 孙正恒; 任长娥
Original assignee: Shanghai Accountability Lntelligent Technology Co ltd
Current assignee: Shanghai Accountability Lntelligent Technology Co ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-01-06
Anticipated expiration: 2032-09-13

Abstract

The utility model relates to a testing arrangement field specifically is airtight testing arrangement of ultrasonic wave gas table, including box, fixture and accredited testing organization, the inside fixed mounting of box has lift platform, the fixture that is used for the gas table location is installed to the lift platform upside, the utility model discloses a make it drive the expansion plate outwards remove at the flexible inslot to both sides pulling splint, drive the sliding sleeve and produce the potential energy at the outside slip of slide bar outer wall to the spring extrusion, control gas accuse solenoid valve makes gaseous through being surveyed the table body, compares through the flow pressure size of little differential pressure sensor to the gas flow size of the circulation being surveyed the table body and the standard reference air supply, calculates the pressure differential to reach the leakage condition of being surveyed the table body, this test gas table is more accurate high-efficient and be convenient for carry out airtight test simultaneously to the multiunit ultrasonic wave simultaneously, makes testing arrangement have the high efficiency.

Description

Ultrasonic gas meter airtightness testing device

Technical Field

The utility model relates to a testing arrangement field specifically is airtight testing arrangement of ultrasonic wave gas table.

Background

The traditional gas meter mainly depends on air pressure to drive a character wheel to rotate so as to realize mechanical counting. The ultrasonic gas meter is a new gas metering product, the metering mode of the ultrasonic gas meter adopts ultrasonic to measure flow velocity to calculate the integral of the flow velocity on the time with a fixed sectional area so as to obtain the gas volume, and before the ultrasonic gas meter leaves a factory, the gas tightness of a body needs to be tested, so that the leakage of gas in the subsequent use is avoided.

Patent CN216247045U discloses an air tightness test fixture that is used for automatically controlled valve in gas metering instrument, and this testing arrangement is through placing the use in aqueous, if aerify the detection back, in case have the leakage point, then directly can appear the bubble in aqueous, suggestion gas tightness is bad. Therefore, the use is simple and convenient, and the use cost is lower.

The testing device has the following defects: above-mentioned testing arrangement detects through the physical mode of putting into the aquatic and observing whether the gassing, and the gas table directly causes the damage if there is the leakage then can intake after detecting, and operation process is complicated moreover, if the minimum condition of leaking appears simultaneously, the bubble appears unobviously, then produces the erroneous judgement easily, the accuracy greatly reduced of test.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an airtight testing arrangement of ultrasonic wave gas table for solve above-mentioned testing arrangement and detect through the physical mode of putting into the aquatic observation bubble whether, gas table if there is the leakage then can intake water and directly cause the damage after detecting, and operation process is complicated moreover, if minimum leakage condition appears simultaneously, the bubble appears unobvious, then produces the erroneous judgement easily, the accuracy greatly reduced's of test problem.

Therefore, the utility model provides an airtight testing arrangement of ultrasonic wave gas table, including box, fixture and accredited testing organization, the inside fixed mounting of box has lift platform, the fixture that is used for fixing a position the gas table is installed to the lift platform upside, lateral wall fixed mounting has horizontal board before the box, horizontal board downside fixed mounting has the camera lens of focusing, the accredited testing organization that is used for airtight high-efficient detection of gas table is installed to the box upside.

Preferably: the fixture is including placing the board, place board fixed mounting at lift platform's upside, place the inside flexible groove of having seted up in board both sides, the inside expansion plate that inlays of expansion groove is equipped with, the side channel has been seted up to both sides about the expansion channel, the inside fixed mounting of side channel has the slide bar, both sides fixed mounting has sliding sleeve and cover to inlay at the slide bar lateral wall about the expansion plate, sliding sleeve lateral wall fixedly connected with spring, expansion plate outer end upside fixed mounting has splint.

Preferably: the testing mechanism comprises a standard reference air source, a micro differential pressure sensor, a pneumatic control electromagnetic valve, a connector and a tested meter body, wherein the standard reference air source is fixedly installed on the outer wall of the upper side of the box body, the lower side of the standard reference air source penetrates through an ancient pier road inside the box body to be connected with the micro differential pressure sensor, the pneumatic control electromagnetic valve is fixedly connected with the lower side of the micro differential pressure sensor, the connector is fixedly installed at the lower end of the pneumatic control electromagnetic valve, and the tested meter body is placed on the upper side of the placing plate and the upper end of the placing plate is in butt joint with the connector.

Preferably, the following components: the sliding sleeve is fixedly connected with one end of the spring, and the other end of the spring is fixedly connected with the inner wall of the side groove.

Preferably: the side wall of the clamping plate is serrated.

Preferably, the following components: and the power input ends of the standard reference gas source, the micro differential pressure sensor, the pneumatic control electromagnetic valve and the joint are connected with the power output end of the box body.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, through to both sides pulling splint make it drive the expansion plate outwards remove at flexible inslot, it produces the potential energy to the spring extrusion to drive the sliding sleeve at the outside slip of slide bar outer wall, place the surveyed table body of ultrasonic gas table well and place placing the board upside, loosen the pulling force to splint, spring release potential energy inwards promotes the sliding sleeve and drives splint and move to the firm centre gripping of surveyed table body both sides simultaneously to the center, control lift platform upward movement will be surveyed the table body and lift to the height that connects, will connect to insert in being surveyed the table body, control gas accuse solenoid valve makes gaseous through being surveyed the table body, through the flow pressure size contrast of little differential pressure sensor to the gas flow size of the circulation surveyed table body and standard reference air supply, calculate the pressure differential, thereby reach the leakage condition of being surveyed the table body, this test effect is more accurate high-efficient and be convenient for carry out airtight test simultaneously to multiunit ultrasonic gas table simultaneously more, make testing arrangement have the high efficiency.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front sectional view of the clamping mechanism of the present invention;

fig. 3 is a schematic diagram of the test of the present invention.

In the figure:

1. a box body; 2. a lifting platform; 301. placing a plate; 302. a telescopic groove; 303. a retractable plate; 304. a side groove; 305. a slide bar; 306. a sliding sleeve; 307. a spring; 308. a splint; 4. a transverse plate; 5. a focusing lens; 601. a standard reference gas source; 602. a micro differential pressure sensor; 603. a pneumatic control electromagnetic valve; 604. a joint; 605. and (5) measuring the surface body.

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.

Please refer to fig. 1-3, fig. is a preferred embodiment of the present invention, an airtight testing device for ultrasonic gas meter, including box 1, clamping mechanism and testing mechanism, 1 inside fixed mounting of box has lifting platform 2, the clamping mechanism for positioning the gas meter is installed to 2 upside of lifting platform, 1 front side wall fixed mounting of box has

transverse plate

4, 4 downside fixed mounting of transverse plate has focusing

lens

5, 1 upside of box is installed and is used for the testing mechanism for airtight high-efficient detection of gas meter.

The clamping mechanism comprises a placing plate 301, the placing plate 301 is fixedly installed on the upper side of the lifting platform 2, telescopic grooves 302 are formed in two sides of the placing plate 301, telescopic plates 303 are embedded in the telescopic grooves 302, side grooves 304 are formed in the upper side and the lower side of the telescopic grooves 302, sliding rods 305 are fixedly installed in the side grooves 304, sliding sleeves 306 are fixedly installed on the upper side and the lower side of the telescopic plates 301 and are sleeved on the side walls of the sliding rods 305, springs 307 are fixedly connected to the outer side walls of the sliding sleeves 306, and clamping plates 308 are fixedly installed on the upper sides of the outer ends of the telescopic plates 303; the clamp plates 308 are pulled towards two sides to drive the expansion plates 303 to move outwards in the expansion grooves 302, the sliding sleeve 306 is driven to slide outwards on the outer wall of the sliding rod 305 to extrude the spring 307 to generate potential energy, the measured meter body 605 of the ultrasonic gas meter is aligned and placed on the upper side of the placing plate 301, the tension on the clamp plates 308 is loosened, and the spring 307 releases the potential energy to push the sliding sleeve 306 inwards to drive the clamp plates 308 to move towards the center to firmly clamp two sides of the measured meter body 605.

The testing mechanism comprises a standard reference air source 601, a micro differential pressure sensor 602, a pneumatic control electromagnetic valve 603, a connector 604 and a tested meter body 605, wherein the standard reference air source 601 is fixedly arranged on the outer wall of the upper side of the box body 1, the lower side of the standard reference air source 601 penetrates through a ancient pier way in the box body 1 to be connected with the micro differential pressure sensor 602, the pneumatic control electromagnetic valve 603 is fixedly connected to the lower side of the micro differential pressure sensor 602, the connector 604 is fixedly arranged at the lower end of the pneumatic control electromagnetic valve 603, and the tested meter body 605 is arranged on the upper side of the placing plate 301 and the upper end of the tested meter body is butted with the connector 604; control lift platform 2 rebound will be surveyed table body 605 and lift to the height of joint 604, with the joint 604 access in being surveyed table body 605, control gas accuse solenoid valve 603 makes gaseous through being surveyed table body 605, compare the gas flow size of being surveyed table body 605 and the flow pressure size of standard reference gas source 601 through little differential pressure sensor 602 circulation, calculate the pressure differential, thereby obtain being surveyed table body 605's the leakage situation, this test effect is more accurate high-efficient and be convenient for carry out airtight test simultaneously to multiunit ultrasonic gas table, make testing arrangement have the high efficiency.

The sliding sleeve 306 is fixedly connected with one end of a spring 307, and the other end of the spring 307 is fixedly connected with the inner wall of the side groove 304; the measured surface body 605 can be clamped and positioned quickly.

The side wall of the clamping plate 308 is serrated; so as to firmly and stably position the measured surface body 605.

The power input ends of the standard reference gas source 601, the micro differential pressure sensor 602, the pneumatic control electromagnetic valve 603 and the connector 604 are all connected with the power output end of the box body 1.

The utility model discloses a work flow and principle: the clamp plate 308 is pulled to two sides to drive the telescopic plate 303 to move outwards in the telescopic groove 302, the sliding sleeve 306 is driven to slide outwards on the outer wall of the sliding rod 305 to extrude a spring 307 to generate potential energy, the measured meter body 605 of the ultrasonic gas meter is placed on the upper side of the placing plate 301 in an aligned mode, the tension on the clamp plate 308 is released, the spring 307 releases the potential energy to push the sliding sleeve 306 inwards to drive the clamp plate 308 to move towards the center and firmly clamp two sides of the measured meter body 605, the lifting platform 2 is controlled to move upwards to lift the measured meter body 605 to the height of the connector 604, the connector 604 is connected into the measured meter body 605, the pneumatic control electromagnetic valve 603 is controlled to enable gas to pass through the measured meter body 605, the gas flow rate flowing through the measured meter body 605 is compared with the flow rate pressure of a standard reference gas source 601 through the micro differential pressure sensor 602, pressure difference is calculated, and therefore the leakage condition of the measured meter body 605 is obtained.

The above description is provided for further details of the present invention, and it should not be assumed that the present invention is limited to these descriptions, and it will be appreciated by those skilled in the art that various modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. Airtight testing arrangement of ultrasonic wave gas table, its characterized in that: including box (1), fixture and accredited testing organization, box (1) inside fixed mounting has lift platform (2), the fixture that is used for the gas meter location is installed to lift platform (2) upside, lateral wall fixed mounting has horizontal board (4) before box (1), horizontal board (4) downside fixed mounting has focusing lens (5), the accredited testing organization that is used for the airtight high-efficient detection of gas meter is installed to box (1) upside.

2. The ultrasonic gas meter airtightness testing device according to claim 1, wherein: fixture is including placing board (301), place board (301) fixed mounting at the upside of lift platform (2), place board (301) both sides inside and seted up expansion tank (302), expansion tank (302) inside is inlayed and is equipped with expansion plate (303), side channel (304) have been seted up to both sides about expansion tank (302), side channel (304) inside fixed mounting has slide bar (305), both sides fixed mounting has sliding sleeve (306) and cover to inlay at slide bar (305) lateral wall about expansion plate (303), sliding sleeve (306) lateral wall fixedly connected with spring (307), expansion plate (303) outer end upside fixed mounting has splint (308).

3. The ultrasonic gas meter airtightness testing device according to claim 1, wherein: the testing mechanism comprises a standard reference air source (601), a micro differential pressure sensor (602), an air control solenoid valve (603), a connector (604) and a tested meter body (605), wherein the standard reference air source (601) is fixedly installed on the outer wall of the upper side of the box body (1), the lower side of the standard reference air source (601) penetrates through the inner ancient pier way of the box body (1) and is connected with the micro differential pressure sensor (602), the lower side of the micro differential pressure sensor (602) is fixedly connected with the air control solenoid valve (603), the lower end of the air control solenoid valve (603) is fixedly installed with the connector (604), and the tested meter body (605) is placed on the upper side of the placing plate (301) and the upper end of the tested meter body is in butt joint with the connector (604).

4. The ultrasonic gas meter airtightness testing device according to claim 2, wherein: the sliding sleeve (306) is fixedly connected with one end of a spring (307), and the other end of the spring (307) is fixedly connected with the inner wall of the side groove (304).

5. The ultrasonic gas meter airtightness testing device according to claim 2, wherein: the side wall of the clamping plate (308) is serrated.

6. The ultrasonic gas meter airtightness testing device according to claim 3, wherein: and the power input ends of the standard reference air source (601), the micro-differential pressure sensor (602), the pneumatic control electromagnetic valve (603) and the joint (604) are connected with the power output end of the box body (1).