CN213022124U

CN213022124U - Inspection bench for metrological verification work

Info

Publication number: CN213022124U
Application number: CN202120533595.2U
Authority: CN
Inventors: 李珊
Original assignee: Jiangxi Zhongheng Measurement And Testing Co ltd
Current assignee: Jiangxi Zhongheng Measurement And Testing Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-04-20
Anticipated expiration: 2031-03-15

Abstract

The utility model discloses a checking platform for metrological verification work, which comprises a checking platform, wherein a gas storage tank is arranged on the checking platform, a first exhaust pipe and a second exhaust pipe are arranged on the gas storage tank, a stop valve and a bypass pipe are arranged on the first exhaust pipe, a first electromagnetic valve is arranged on the bypass pipe, a pressure sensor is arranged in the gas storage tank, the pressure sensor is electrically connected with the first electromagnetic valve, a second electromagnetic valve is arranged on the second exhaust pipe, a bulge is arranged on the gas storage tank, a second sliding plate is matched with the side wall of the bulge in a sliding way, a spring is arranged between the second sliding plate and the top wall of the bulge, a first metal block is arranged on the upper surface of the second sliding plate, a second metal block is arranged on the upper end of the inner wall of the bulge, the utility model controls the first electromagnetic valve to be opened through the pressure sensor, the second sliding plate moves upwards to, the potential safety hazard caused by overhigh air pressure in the air storage tank is avoided.

Description

Inspection bench for metrological verification work

Technical Field

The utility model relates to a manometer examination technical field specifically is a checkout stand of metrological verification work effect.

Background

The pressure gauge is a meter which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the environmental pressure, is widely applied and almost extends to all the fields of industrial processes and scientific researches, and needs to carry out metering verification on finished products in the production process of the pressure gauge to ensure the quality of the pressure gauge, the pressure gauge is a meter which takes the elastic element as the sensitive element and measures and indicates the pressure higher than the environmental pressure, and is widely applied and almost extends to all the fields of industrial processes and scientific researches, such as heat pipe networks, oil and gas transmission, water and gas supply systems, oil and gas transmission systems, water and gas supply systems, oil and gas transmission systems, oil and gas supply systems, oil and gas transmission systems, water and gas supply systems, and water and gas supply systems, The mechanical pressure gauge is widely applied in the fields of vehicle maintenance factories and the like, and particularly in the industrial process control and technical measurement process, because the elastic sensitive element of the mechanical pressure gauge has the characteristics of high mechanical strength, convenient production and the like.

During the process of pressure gauge metrological verification, gradually and smoothly boosting (or reducing) pressure during verification, when an indication value reaches the upper limit of measurement, cutting off a pressure source, carrying out pressure resistance for three minutes, and then, smoothly and reversely checking according to the original verification point, wherein in the existing pressure gauge verification process, the pressure needs to be increased to higher air pressure, and the verification process has certain danger.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a checkout stand that metrological verification work was used to shortcoming and problem that exist among the background art improve and innovate.

In order to achieve the above object, the utility model provides a following technical scheme: a checkout stand for metrological verification work comprises a checkout stand, wherein an air storage tank is installed on the checkout stand, a plurality of communicating pipes are arranged on the air storage tank, a first exhaust pipe and a second exhaust pipe are arranged on two sides of each communicating pipe, each communicating pipe is provided with an adjusting valve, the tail end of one communicating pipe is in threaded connection with a standard pressure gauge, the tail ends of the other communicating pipes are in threaded connection with verification pressure gauges, the first exhaust pipe is provided with a stop valve and a bypass pipe, the bypass pipe is provided with a first electromagnetic valve, a pressure sensor is arranged in the air storage tank and electrically connected with the first electromagnetic valve, the second exhaust pipe is provided with a second electromagnetic valve, the air storage tank is provided with a bulge, the side wall of the bulge is in sliding fit with a second sliding plate, the upper surface of the second sliding plate is fixedly connected with one end of, the upper surface of the second sliding plate is provided with a first metal block, the upper end of the inner wall of the boss is provided with a second metal block, and the second electromagnetic valve is automatically opened after the first metal block is contacted with the second metal block.

The further scheme is that two loop bars are installed on the top wall of the protruding portion, the spring is sleeved on the loop bars, and the loop bars penetrate through the second sliding plate and are in sliding fit with the second sliding plate.

The utility model provides a further scheme is, the gas holder outside is provided with the annulus, checkout stand lower surface four corners department is provided with the supporting leg, be provided with the backup pad between the supporting leg, surface mid-mounting has the basin in the backup pad, basin one side is provided with the water pump, and the basin opposite side is provided with the air pump, be provided with the drain pipe on the checkout stand and be located between annulus inner wall and the gas holder outer wall, the drain pipe bottom is located inside the basin, be connected with the outlet duct on the air pump, the one end that the air pump was kept away from to the outlet duct is connected with the gas holder after running through checkout stand, annulus, the water pump water inlet is connected with the basin through the drinking-water pipe, and the water pump delivery port has connected gradually.

The further proposal is that the upper end inside the water tank is clamped with a filter screen.

The further proposal is that the drain pipe is provided with a drain valve.

The further scheme is that the annular sleeve is hollow, the inner wall of the annular sleeve is in sliding fit with a first sliding plate, an annular lifting plate is fixedly connected to the upper end of the first sliding plate, a sealing ring is arranged at the contact position of the annular lifting plate and the annular sleeve, lower supporting plates are mounted on the outer side walls of two ends of the annular sleeve, upper supporting plates are mounted on the outer side walls of two ends of the annular lifting plate, an electric telescopic rod is mounted on each lower supporting plate, the telescopic end of the electric telescopic rod is fixedly connected with the upper supporting plates, and water outlet pipes are mounted on the upper ends of.

In a further scheme, a stop block is arranged at the bottom end inside the annular sleeve.

Compared with the prior art, the beneficial effects of the utility model are that: when the air pressure in the air storage tank is too high, the pressure sensor controls the first electromagnetic valve to be automatically opened, and meanwhile, under the action of the air pressure in the air storage tank, the second sliding plate moves upwards to compress the spring so that the first metal block is contacted with the second metal block, and the second electromagnetic valve is controlled to be automatically opened, so that the potential safety hazard caused by the too high air pressure in the air storage tank is effectively avoided through double protection; in addition, the water is repeatedly recycled through the water pump, so that water resources are saved; electric telescopic handle drives annular lifter plate downstream, reduces the height of annular lifter plate, is convenient for install the upper end at communicating pipe with examining and determine the manometer.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention at a point A in FIG. 1;

reference numerals: the inspection bench comprises an inspection bench 1, a lower supporting plate 2, an annular sleeve 3, an electric telescopic rod 4, an upper supporting plate 5, an annular lifting plate 6, a first electromagnetic valve 7, a bypass pipe 8, a first exhaust pipe 9, a communicating pipe 10, a pressure sensor 11, a stop valve 12, an air storage tank 13, a regulating valve 14, a standard pressure gauge 15, a verification pressure gauge 16, a second electromagnetic valve 17, a second exhaust pipe 18, an outlet pipe 19, a first sliding plate 20, a sealing ring 21, a stop block 22, a connecting hose 23, an upper water pipe 24, a drain valve 25, a water pump 26, a water pumping pipe 27, a water tank 28, a filter screen 29, an air pump 30, a supporting leg 31, an outlet pipe 32, a drain pipe 33, a spring 34, a bulge 35, a loop bar 36, a second sliding plate 37, a first metal.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 2.

An inspection bench for metrological verification work comprises an inspection bench 1, wherein an air storage tank 13 is installed on the inspection bench 1, a plurality of communicating pipes 10 are arranged on the air storage tank 13, a first exhaust pipe 9 and a second exhaust pipe 18 are arranged on two sides of each communicating pipe 10, each communicating pipe 10 is provided with an adjusting valve 14, the tail end of one communicating pipe 10 is in threaded connection with a standard pressure gauge 15, the tail ends of other communicating pipes 10 are in threaded connection with a verification pressure gauge 16, the first exhaust pipe 9 is provided with a stop valve 12 and a bypass pipe 8, the bypass pipe 8 is provided with a first electromagnetic valve 7, a pressure sensor 11 is arranged in the air storage tank 13, the pressure sensor 11 is electrically connected with the first electromagnetic valve 7, the second exhaust pipe 18 is provided with a second electromagnetic valve 17, the air storage tank 13 is provided with a bulge 35, and the side wall of the bulge 35, the upper surface of the second sliding plate 37 is fixedly connected with one end of a spring 34, the other end of the spring 34 is fixedly connected with the top wall of the boss 35, the upper surface of the second sliding plate 37 is provided with a first metal block 38, the upper end of the inner wall of the boss 35 is provided with a second metal block 39, and when the first metal block 38 is in contact with the second metal block 39, the second electromagnetic valve 17 is automatically opened.

In this embodiment, two loop bars 36 are installed on the top wall of the protruding portion 35, the spring 34 is sleeved on the loop bars 36, the loop bars 36 penetrate through the second sliding plate 37 and are in sliding fit with the second sliding plate 37, and stable lifting of the second sliding plate 37 is facilitated under the limit of the loop bars 36.

In this embodiment, the gas holder 13 outside is provided with annulus 3, 1 lower surface four corners department of checkout stand is provided with supporting leg 31, be provided with backup pad 40 between the supporting leg 31, 40 upper surface mid-mountings of backup pad have basin 28, basin 28 one side is provided with water pump 26, and basin 28 opposite side is provided with air pump 30, be provided with drain pipe 33 on checkout stand 1 and be located between 3 inner walls of annulus and the gas holder 13 outer wall, drain pipe 33 bottom is located inside basin 28, be provided with drain valve 25 on drain pipe 33, be connected with outlet duct 32 on the air pump 30, the one end that air pump 30 was kept away from to outlet duct 32 is run through checkout stand 1, annulus 3 and is connected with gas holder 13, water pump 26 water inlet is connected with basin 28 through drinking-water pipe 27, and water pump 26 delivery port has connected gradually, The flexible pipe 23 and the water outlet pipe 19 are connected, and the water outlet of the water outlet pipe 19 is positioned above the inner part of the annular sleeve 3. The water pump 26 pumps water in the water tank 28 through the water pumping pipe 27, and then sequentially passes through the water feeding pipe 24, the connecting hose 23 and the water outlet pipe 19 to be injected into the annular sleeve 3 until the water level is higher than the verification pressure gauge 16, so that the leakage is avoided influencing the accuracy of the verification result by detecting whether bubbles exist or not, after the metering verification is finished, the drain valve 25 is opened, the water in the annular sleeve 3 returns to the water tank 28 through the drain pipe 33, the recycling and reusing of water resources are completed, and the water saving is facilitated.

In this embodiment, a filter screen 29 is fastened to the upper end of the inside of the water tank 28, and the filter screen 29 is used for filtering impurities in the water.

In this embodiment, 3 inside hollows of ring sleeve, 3 inner wall sliding fit of ring sleeve have first slide 20, and first slide 20 upper end fixedly connected with annular lifter plate 6, annular lifter plate 6 and 3 contact departments of ring sleeve are provided with sealing washer 21, install bottom suspension fagging 2 on the 3 both ends lateral walls of ring sleeve, install backup pad 5 on the 6 both ends lateral walls of annular lifter plate, install electric telescopic handle 4 on the bottom suspension fagging 2, electric telescopic handle 4's flexible end and last backup pad 5 fixed connection, outlet pipe 19 is installed in 6 upper ends of annular lifter plate.

In this embodiment, the annular sleeve 3 is provided with a stop block 22 at the inner bottom end, and the stop block 22 is used for stopping the first sliding plate 20 from moving until the bottom of the annular sleeve 3 collides with the outlet pipe 32.

The utility model discloses a theory of operation: when the detection device is used specifically, firstly, the annular lifting plate 6 is driven by the electric telescopic rod 4 to move downwards, the height of the annular lifting plate 6 is reduced, the detection pressure gauge 16 is conveniently installed at the upper end of the communicating pipe 10, after the detection pressure gauge 16 is installed, the annular lifting plate 6 is driven by the electric telescopic rod 4 to move upwards, so that the height of the upper surface of the annular lifting plate 6 is higher than that of the detection pressure gauge 16, then the water in the water tank 28 is pumped into the annular sleeve 3 by the water pump 26 until the water level is higher than that of the detection pressure gauge 16, so that the detection of the existence of leakage is facilitated by the existence of bubbles, the influence on the accuracy of the detection result due to the leakage is avoided, meanwhile, the air pump 30 charges air into the air storage tank 13 for pressurization, the error between the standard pressure gauge 15 and the detection pressure gauge 16 is compared in the pressurization process, then the air leakage depressurization is carried out in the air storage tank 13, providing a basis for calibrating the pressure gauge 16 in the later period; when the air pressure in the air storage tank 13 reaches a critical value, the pressure sensor 11 controls the first electromagnetic valve 7 to be automatically opened, and meanwhile, under the action of the air pressure in the air storage tank 13, the second sliding plate 37 moves upwards to compress the spring 34 so that the first metal block 38 is contacted with the second metal block 39, the second electromagnetic valve 17 is controlled to be automatically opened, and double protection is realized to avoid potential safety hazards caused by overhigh air pressure in the air storage tank 13; and finally, the drain valve 25 is opened, and the water in the annular sleeve 3 flows back to the water tank 28, so that the water can be recycled, and the water resource is saved.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A test bench for metrological verification work, comprising a test bench (1), characterized in that: the pressure detection device is characterized in that a gas storage tank (13) is installed on the inspection bench (1), a plurality of communicating pipes (10) are arranged on the gas storage tank (13), a first exhaust pipe (9) and a second exhaust pipe (18) are arranged on two sides of each communicating pipe (10), each communicating pipe (10) is provided with an adjusting valve (14), the tail end of one communicating pipe (10) is in threaded connection with a standard pressure gauge (15), the tail end of the other communicating pipe (10) is in threaded connection with a verification pressure gauge (16), the first exhaust pipe (9) is provided with a stop valve (12) and a bypass pipe (8), the bypass pipe (8) is provided with a first electromagnetic valve (7), a pressure sensor (11) is arranged in the gas storage tank (13), the pressure sensor (11) is electrically connected with the first electromagnetic valve (7), and the second electromagnetic valve, there is a bellying (35) on gas holder (13), bellying (35) lateral wall sliding fit has second slide (37), fixed surface is connected with the one end of spring (34) on second slide (37), spring (34) other end and bellying (35) roof fixed connection, and second slide (37) upper surface is provided with first metal block (38), bellying (35) inner wall upper end is provided with second metal block (39), and after first metal block (38) and second metal block (39) contacted, second solenoid valve (17) were opened automatically.

2. A certification workstation for metrology work according to claim 1, wherein: two loop bars (36) are installed on the top wall of the protruding portion (35), the loop bars (36) are sleeved with the springs (34), and the loop bars (36) penetrate through the second sliding plate (37) and are in sliding fit with the second sliding plate.

3. A certification workstation for metrology work according to claim 1, wherein: the inspection bench is characterized in that an annular sleeve (3) is arranged on the outer side of the gas storage tank (13), supporting legs (31) are arranged at four corners of the lower surface of the inspection bench (1), a supporting plate (40) is arranged between the supporting legs (31), a water tank (28) is arranged in the middle of the upper surface of the supporting plate (40), a water pump (26) is arranged on one side of the water tank (28), an air pump (30) is arranged on the other side of the water tank (28), a drain pipe (33) is arranged on the inspection bench (1) and between the inner wall of the annular sleeve (3) and the outer wall of the gas storage tank (13), the bottom end of the drain pipe (33) is arranged in the water tank (28), an air outlet pipe (32) is connected onto the air pump (30), one end, far away from the air pump (30), of the air outlet pipe (32) penetrates through the inspection bench (1, the water outlet of the water pump (26) is sequentially connected with a water feeding pipe (24), a connecting hose (23) and a water outlet pipe (19), and the water outlet of the water outlet pipe (19) is positioned above the inner part of the annular sleeve (3).

4. A certification workstation for metrology work according to claim 1, wherein: the upper end of the inside of the water tank (28) is clamped with a filter screen (29).

5. A certification workstation for metrology work according to claim 3, wherein: the drain pipe (33) is provided with a drain valve (25).

6. A certification workstation for metrology work according to claim 3, wherein: the utility model discloses a support ring for the automobile seat, including annular sleeve (3), annular sleeve (3) inside cavity, annular sleeve (3) inner wall sliding fit has first slide (20), and first slide (20) upper end fixedly connected with annular lifter plate (6), annular lifter plate (6) are provided with sealing washer (21) with annular sleeve (3) contact department, install backup pad (2) on the lateral wall of annular sleeve (3) both ends, install backup pad (5) on annular lifter plate (6) both ends lateral wall, install electric telescopic handle (4) on backup pad (2) down, the flexible end and the last backup pad (5) fixed connection of electric telescopic handle (4), outlet pipe (19) are installed in annular lifter plate (6) upper end.

7. A certification workstation for metrology work according to claim 6, wherein: and a stop block (22) is arranged at the bottom end in the annular sleeve (3).