CN213516228U

CN213516228U - Airtightness detection device of pressure detection instrument

Info

Publication number: CN213516228U
Application number: CN202021658882.8U
Authority: CN
Inventors: 宋德华
Original assignee: Guangdong Yuantong Industrial Technology Co ltd
Current assignee: Guangdong Yuantong Industrial Technology Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-06-22
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses a pressure measurement instrument's airtight detection device, including testing platform and the base of setting in the testing platform bottom, testing platform one side is provided with the air pump, the testing platform opposite side is provided with calibration assembly, the pipe duct has been seted up to testing platform top inboard, the opening has been seted up at the pipe duct top, the inside trunk line that is provided with of pipe duct, trunk line top one side is provided with the calibration pipeline, just the calibration pipeline top runs through the opening, just the calibration pipeline top is connected with the barometer, calibration pipeline one side is kept away from at the trunk line top and is provided with multiunit determine module. The utility model discloses an adopt water pressure as the reference that the barometer detected, and then the single barometer of effectual reduction detects the error that probably appears to improved the precision that the device detected, simultaneously through setting up multiunit determine module, and then the effectual detection efficiency who improves the device.

Description

Airtightness detection device of pressure detection instrument

Technical Field

The utility model relates to a pressure measurement instrument correlation field specifically is a pressure measurement instrument's airtight detection device.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element and measures and indicates pressure higher than ambient pressure, is very commonly applied, almost extends to all the fields of industrial processes and scientific researches, is visible everywhere in the fields of heat supply pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance and repair shops 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, the mechanical pressure gauge is more and more widely applied, when the pressure detection instrument is used, the air tightness detection is required to be carried out on the pressure detection instrument, so that the accuracy of the pressure detection instrument is improved, and the air tightness detection device is generally adopted at the present stage.

However, the existing airtight detection device of the pressure detection instrument has the following disadvantages:

1. the existing airtight detection device of the pressure detection instrument adopts a single standard meter to carry out calibration measurement, and the single standard meter measurement mode has lower detection precision due to no corresponding reference value.

2. The existing airtight detection device for the pressure detection instrument has the defects of the structure, so that the device cannot detect a plurality of pressure detection instruments at one time, and further the efficiency of the device is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure measurement instrument's airtight detection device, the airtight detection device who has solved current pressure measurement instrument all adopts single standard table to calibrate the measurement, this kind of single standard table measuring mode, owing to there is not corresponding reference value, and then the lower problem of detection precision that leads to the device, the airtight detection device who has solved current pressure measurement instrument simultaneously is because the defect of structure itself, lead to the device can not once only detect a plurality of pressure measurement instrument, and then the lower problem of efficiency that leads to the device.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pressure measurement instrument's airtight detection device, includes testing platform and the base of setting in the testing platform bottom, testing platform one side is provided with the air pump, the testing platform opposite side is provided with calibration assembly, the pipe duct has been seted up to testing platform top inboard, the opening has been seted up at the pipe duct top, the inside trunk line that is provided with of pipe duct, trunk line top one side is provided with calibration pipeline, just the opening is run through at calibration pipeline top, just the calibration pipeline top is connected with the barometer, calibration pipeline one side is kept away from at the trunk line top is provided with multiunit determine module.

Preferably, a fixing frame is arranged at the top of the air pump, and one side of the fixing frame is fixedly connected with the side wall of the detection platform.

Preferably, the multiunit the determine module comprises detection pipeline and control valve, detect the pipeline bottom all run through the opening with the trunk line is connected, just detect the pipeline all with the trunk line is inside to be linked together, detect pipeline one side all is provided with control valve.

Preferably, the calibration assembly comprises a U-shaped pipe, a connecting pipe and a check valve, the U-shaped pipe is arranged on one side of the detection platform, liquid water is arranged inside the U-shaped pipe, dial scales are arranged on two sides of the U-shaped pipe, the connecting pipe is arranged at the top of one side of the U-shaped pipe, one end of the connecting pipe is connected with an outlet of the check valve, an inlet of the check valve is connected with one end, far away from the air pump, of the main pipe, and the check valve is communicated with the inside of the main pipe.

Preferably, the outer wall of the bottom of the connecting pipe is provided with a sealing element, and the sealing element is fixedly connected with an opening on one side of the top of the U-shaped pipe.

Preferably, a fixing assembly is arranged on one side of the U-shaped pipe and comprises a fixing transverse plate and a fixing bottom plate, one end of the fixing transverse plate is connected with the fixing rod on the side wall of the detection platform, one side of the detection platform is far away from the fixing transverse plate and is fixedly connected with the outer wall of the U-shaped pipe, the fixing bottom plate is arranged at the bottom of the U-shaped pipe, a supporting groove matched with the U-shaped pipe is formed in the fixing top, the bottom of the U-shaped pipe is arranged in the supporting groove, and one end of the fixing transverse plate is fixedly connected with the side wall of the detection platform.

The utility model provides a pressure measurement instrument's airtight detection device possesses following beneficial effect:

(1) the utility model discloses a set up the calibration subassembly, when the device was used, the user can obtain the high position difference of the inside water resource of U type pipeline through the inside both sides graduation apparatus of record U type pipeline, reachs the pressure value through using the water pressure computational formula, is comparing with the numerical value and the water pressure numerical value of barometer respectively through the numerical value with pressure measurement instrument, and then the error that the single barometer of effectual reduction detected probably to the precision that the device detected has been improved.

(2) The utility model discloses a set up the determine module, through setting up multiunit determine module, and then when the device was used, the user can be connected a plurality of pressure measurement instrument that need carry out the detection with different detection tube respectively, then can make the device can detect a plurality of pressure measurement instrument's gas tightness simultaneously through opening corresponding control flap, and then make the detection efficiency of device higher.

Drawings

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

FIG. 2 is a top view of the inspection platform of the present invention;

fig. 3 is an enlarged view of the structure at a in fig. 1 of the present invention.

In the figure: 1. a detection platform; 2. a base; 3. an air pump; 4. a pipe chase; 5. an opening; 6. a main pipeline; 7. calibrating a pipeline; 8. a barometer; 9. a fixed mount; 10. detecting a pipeline; 11. a control valve; 12. A U-shaped pipe; 13. a connecting pipe; 14. a one-way valve; 15. a dial scale; 16. a seal member; 17. fixing the transverse plate; 18. fixing the bottom plate; 19. and a support groove.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-3, the utility model provides a technical solution: the utility model provides an airtight detection device of pressure measurement instrument, includes testing platform 1 and sets up base 2 in 1 bottom of testing platform, 1 one side of testing platform is provided with

air pump

3, 1 opposite side of testing platform is provided with calibration assembly, pipeline groove 4 has been seted up to 1 top inboard of testing platform, opening 5 has been seted up at 4 tops of pipeline groove, the inside trunk line 6 that is provided with of

pipeline groove

4, 6 top one side of trunk line is provided with calibration pipeline 7, just 7 tops of calibration pipeline run through opening 5, just 7 tops of calibration pipeline are connected with

barometer

8, 7 one side of calibration pipeline is kept away from at 6 tops of trunk line is provided with multiunit determine module.

Further, a fixing frame 9 is arranged at the top of the air pump 3, one side of the fixing frame 9 is fixedly connected with the side wall of the detection platform 1, and the air pump 3 is more convenient to install by arranging the fixing frame 9.

Further, the multiunit the determine module comprises detection pipeline 10 and control flap 11, detection pipeline 10 bottom all run through opening 5 with trunk line 6 is connected, just detection pipeline 10 all with trunk line 6 is inside to be linked together, detection pipeline 10 one side all is provided with control flap 11, when using, the user can be connected a plurality of pressure measurement instrument that need carry out the detection with different detection pipeline 10 respectively, then can make the device can detect the gas tightness of a plurality of pressure measurement instrument simultaneously through opening corresponding control flap 11, and then makes the detection efficiency of device higher.

Further, the calibration assembly comprises a U-shaped pipe 12, a connecting pipe 13 and a check valve 14, the U-shaped pipe 12 is arranged on one side of the detection platform 1, liquid water is arranged inside the U-shaped pipe 12, dial scales 15 are arranged on two sides of the U-shaped pipe 12, the connecting pipe 13 is arranged on the top of one side of the U-shaped pipe 12, one end of the connecting pipe 13 is connected with an outlet of the check valve 14, an inlet of the check valve 14 is connected with one end, far away from the air pump 3, of the main pipe 6, the check valve 14 is communicated with the inside of the main pipe 6, and by means of the check valve 14, influences of reasons such as gas backflow on a detection result of the device are reduced, so that the detection accuracy of the device.

Furthermore, a sealing element 16 is arranged on the outer wall of the bottom of the connecting pipe 13, the sealing element 16 is fixedly connected with the opening 5 on one side of the top of the U-shaped pipe 12, and the sealing element 16 is arranged, so that the influence of gas leakage on the detection result of the device is reduced, and the detection precision of the device on the pressure detection instrument is further improved.

Further, a fixing component is arranged on one side of the U-shaped pipe 12 and consists of a fixing transverse plate 17 and a fixing bottom plate 18, one end of the fixing transverse plate 17 is connected with a fixing rod on the side wall of the detection platform 1, one side, far away from the detection platform 1, of the fixing transverse plate 17 is fixedly connected with the outer wall of the U-shaped pipe 12, the fixing bottom plate 18 is arranged at the bottom of the U-shaped pipe 12, a supporting groove 19 matched with the U-shaped pipe 12 is formed in the fixing top, the bottom of the U-shaped pipe 12 is arranged inside the supporting groove 19, one end of the fixing transverse plate 17 is fixedly connected with the side wall of the detection platform 1, and the fixing transverse plate 17 and the fixing bottom plate 18 are arranged, so that the fixing of the device on the U-shaped pipe 12 is facilitated, and the stability of.

The working principle is as follows: when using, the user can be connected different pressure measurement instrument with different detection pipeline 10 respectively, then through opening corresponding control flap 11, supply the gas of certain pressure to trunk line 6 through air pump 3, gaseous when the calibration pipeline 7 of trunk line 6 top one side, make barometer 8 can reach appointed pressure value, then record the pressure value of the pressure measurement instrument at detection pipeline 10 top respectively, the high position difference of the inside water resource of U type 12 pipeline is reachd through the inside both sides graduation apparatus of record U type 12 pipeline, reacing the pressure value through using water pressure calculation formula, compare with the numerical value and the water pressure numerical value of barometer 8 respectively at the numerical value through with pressure measurement instrument, can reachd different pressure measurement instrument's gas tightness difference through the comparison.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pressure measurement instrument's airtight detection device, includes testing platform (1) and sets up base (2) in testing platform (1) bottom, its characterized in that: detection platform (1) one side is provided with air pump (3), detection platform (1) opposite side is provided with calibration subassembly, pipeline groove (4) have been seted up to detection platform (1) top inboard, opening (5) have been seted up at pipeline groove (4) top, pipeline groove (4) inside is provided with trunk line (6), trunk line (6) top one side is provided with calibration pipeline (7), just opening (5) are run through at calibration pipeline (7) top, just calibration pipeline (7) top is connected with barometer (8), calibration pipeline (7) one side is kept away from at trunk line (6) top is provided with multiunit determine module.

2. The airtightness detecting apparatus for a pressure detecting instrument according to claim 1, wherein: the top of the air pump (3) is provided with a fixing frame (9), and one side of the fixing frame (9) is fixedly connected with the side wall of the detection platform (1).

3. The airtightness detecting apparatus for a pressure detecting instrument according to claim 1, wherein: the multiunit the determine module comprises detection pipeline (10) and control valve (11), detect pipeline (10) bottom all run through opening (5) with trunk line (6) are connected, just detect pipeline (10) all with trunk line (6) are inside to be linked together, detect pipeline (10) one side all is provided with control valve (11).

4. The airtightness detecting apparatus for a pressure detecting instrument according to claim 1, wherein: the calibration subassembly comprises U type pipe (12), connecting pipe (13) and check valve (14), U type pipe (12) set up in testing platform (1) one side, U type pipe (12) say that inside is provided with liquid water, U type pipe (12) both sides all are provided with calibrated scale (15), U type pipe (12) say that one side top is provided with connecting pipe (13), connecting pipe (13) one end with check valve (14) export is connected, check valve (14) import with air pump (3) one end is kept away from in trunk line (6) is connected, just check valve (14) with trunk line (6) inside is linked together.

5. The airtightness detecting apparatus for a pressure detecting instrument according to claim 4, wherein: and a sealing element (16) is arranged on the outer wall of the bottom of the connecting pipe (13), and the sealing element (16) is fixedly connected with an opening (5) on one side of the top of the U-shaped pipe (12).

6. The airtightness detecting apparatus for a pressure detecting instrument according to claim 4, wherein: u type pipe (12) one side is provided with fixed subassembly, fixed subassembly comprises fixed diaphragm (17) and PMKD (18), fixed diaphragm (17) one end with testing platform (1) lateral wall dead lever is connected, fixed diaphragm (17) keep away from testing platform (1) one side with outer wall fixed connection is said to U type pipe (12), PMKD (18) set up in U type pipe (12) bottom, just fixed top set up with U type pipe (12) assorted support groove (19), U type pipe (12) bottom sets up inside support groove (19), just fixed diaphragm (17) one end with testing platform (1) lateral wall fixed connection.