CN214893923U

CN214893923U - Pipeline pressure measuring device

Info

Publication number: CN214893923U
Application number: CN202120936350.4U
Authority: CN
Inventors: 刘建东
Original assignee: Guangzhou Nansha Development Gas Co ltd
Current assignee: Guangzhou Nansha Development Gas Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-26
Anticipated expiration: 2031-04-30

Abstract

The utility model relates to a technical field that the pipeline detected discloses a pipeline pressure measurement device, including pressure measurement pipeline and display, the one end of pressure measurement pipeline is equipped with the pipeline inflation inlet, and the other end is connected with aerating device, install the check valve in the pressure measurement pipeline, the check valve is located aerating device with between the pipeline inflation inlet, be equipped with the forced induction spare in the pressure measurement pipeline, the forced induction spare is located the check valve with between the pipeline inflation inlet, the forced induction spare with display signal connection. The utility model discloses a pipeline pressure measurement device carries and improves the reading precision simultaneously.

Description

Pipeline pressure measuring device

Technical Field

The utility model relates to a technical field that the pipeline detected especially relates to a pipeline pressure measuring device.

Background

At present, a U-shaped pressure gauge is mostly adopted for tightness detection of a gas pipeline system. Firstly, pumping air into a pipeline system by using an inflator through a pressure testing valve, then closing the pressure testing valve, connecting a U-shaped pressure gauge into the pipeline system through the pressure testing valve, and then opening the pressure testing valve, wherein the side A of the U-shaped pressure gauge is communicated with the pressurized pipeline system, so that the liquid level of the side A is reduced, the side B is communicated with the atmosphere, and the liquid level of the side B is increased; the level change of the U-gauge was then observed: if the pipeline system has air leakage, the liquid level of the side A rises, and the liquid level of the side B falls; if the pipeline system is well sealed, the liquid level is unchanged.

The existing U-shaped pressure gauge is large in size and inconvenient to carry, and scales on the U-shaped pressure gauge are abraded along with time, so that pressure values cannot be accurately read. Even if the new pressure gauge is used, the scales are smaller, and the phenomena of unclear reading and inaccurate pressure measurement are caused. The liquid in the pressure gauge refracts, and the reading is unclear, so that the small pressure change is not easy to be perceived.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a pipeline pressure measurement device that improves the reading precision simultaneously convenient to carry.

In order to achieve the above object, the utility model provides a pipeline pressure measuring device, including pressure measurement pipeline and display, the one end of pressure measurement pipeline is equipped with the pipeline inflation inlet, and the other end is connected with aerating device, install the check valve in the pressure measurement pipeline, the check valve is located aerating device with between the pipeline inflation inlet, be equipped with the forced induction spare in the pressure measurement pipeline, the forced induction spare is located the check valve with between the pipeline inflation inlet, the forced induction spare with display signal connection.

Preferably, the check valve is a gas check film or a manual valve.

Preferably, the check valve includes a gas check film and a manual valve.

Preferably, an inflation airbag is arranged between the check valve and the inflator, and the inflation airbag is respectively communicated with the check valve and the inflator.

Preferably, the pressure measuring device comprises a shell, the pressure measuring pipeline is installed in the shell, a pipeline extending port is formed in one end of the shell, one end, provided with the pipeline inflating port, of the pressure measuring pipeline extends out of the pipeline extending port, and the display is installed outside the shell.

Preferably, a valve installation cavity is formed in the pressure measuring pipeline, the manual valve is rotatably installed in the valve installation cavity, the manual valve is provided with an operation valve handle, one end of the operation valve handle is connected with the manual valve, and the other end of the operation valve handle extends out of the shell.

Preferably, the shell comprises a main body part and a grip part, the grip part is mounted on the lower side of the main body part, the main body part is provided with a pipeline mounting cavity, the pressure measuring pipeline is mounted in the pipeline mounting cavity, the grip part is provided with an air bag mounting cavity, the pipeline mounting cavity is communicated with the air bag mounting cavity, and the inflatable air bag is located in the air bag mounting cavity.

Preferably, a sliding grip is slidably mounted on the lower side of the shell, the opening of the air bag mounting cavity faces the sliding grip, and one side of the sliding grip, which faces the air bag mounting cavity, abuts against the inflatable air bag.

Preferably, a cover body slideway is arranged at one end, provided with the pipeline extending port, of the shell, a protective cover is slidably mounted on the cover body slideway, and the pressure measuring pipeline is located in the protective cover.

Preferably, the inflator is mounted in the airbag mounting chamber.

The embodiment of the utility model provides a pressure measuring device for pipeline compares with prior art, and its beneficial effect lies in: the pressure measurement pipeline passes through pipeline inflation inlet and test tube way intercommunication, and aerating device aerifys to the test tube way through the pressure measurement pipeline, and aerating device starts the back, through the pressure value in the pressure sensing spare response pipeline, and the detection pressure value degree of accuracy is high, and the pressure value signal transmission that the pressure sensing spare detected shows to the display, and test tube pressure variation is perceived easily, and the pressure value reading is convenient, and the reading degree of accuracy is high. The backflow of the charging gas is prevented through the check valve, so that the air pressure test accuracy of the test pipeline is guaranteed. The tightness of the test pipeline can be judged by observing the change of the numerical value in the display, the air pressure numerical value of the test pipeline is convenient to read, and the reading precision of the air pressure value is improved.

Drawings

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

Fig. 2 is a schematic view of the overall structure of another embodiment of the present invention.

In the figure:

10. a pressure measuring pipeline; 11. a gas check film; 12. a manual valve; 13. a pressure sensing member; 14. an inflatable air bag; 15. a valve mounting cavity; 16. operating a valve handle; 17. a pipeline inflation inlet;

20. a display; 21. an inflator;

30. a housing; 31. a main body portion; 32. a pipeline installation cavity; 33. a grip portion; 34. an airbag mounting cavity; 35. sliding the grip; 36. a protective cover; 37. a cover body slideway.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are used in the present invention as indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "connected," "connected," and "fixed" used in the present invention should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral body; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to 2, the utility model discloses a pipeline pressure measuring device of preferred embodiment, including pressure measurement pipeline 10 and display 20, the one end of pressure measurement pipeline 10 is equipped with pipeline inflation inlet 17, and the other end is connected with aerating device 21, installs the check valve in the pressure measurement pipeline 10, and the check valve is located between aerating device 21 and the pipeline inflation inlet 17, is equipped with pressure-sensitive piece 13 in the pressure measurement pipeline 10, and pressure-sensitive piece 13 is located between check valve and the pipeline inflation inlet 17, and pressure-sensitive piece 13 and display 20 signal connection.

The utility model discloses a pipeline pressure measuring device, pressure measuring pipeline 10 pass through pipeline inflation inlet 17 and test tube way intercommunication, and aerating device 21 aerifys to test tube way through pressure measuring pipeline 10, and aerating device 21 starts the back, through the pressure value in the pressure sensing piece 13 response pipeline, and the detection pressure value degree of accuracy is high, and the pressure value signal transmission that pressure sensing piece 13 detected shows to display 20, and test tube way pressure variation is perceived easily, and the pressure value reading is convenient, and the reading degree of accuracy is high. When the pressure value reaches the set value, the check valve is closed to prevent the gas in the pipeline from flowing back, so that the set pressure in the test pipeline is kept, and the air charging device 21 is stopped. The tightness of the test pipe can be judged by observing the change of the value in the display 20. If the value in the display 20 is kept unchanged, it indicates that the air pressure in the pipeline system is not changed, and the sealing performance is good; if the value in the display 20 changes, it indicates that the air pressure in the pipeline changes and the sealing performance does not reach the standard. The utility model discloses a pipeline pressure measurement device simple structure, portable uses conveniently, and gas tightness testing result is accurate.

Further, as shown in fig. 1 to 2, the check valve is a check gas film 11 or a manual valve 12. The check valve is a gas check film 11, when the pipeline pressure measuring device is not started, the gas check film 11 is in a closed state, when the inflating device 21 inflates the pressure measuring pipeline 10, the gas check film 11 is opened to enable the inflating device 21 to be communicated with the test pipeline, the inflating device 21 inflates the test pipeline, and when the inflating device 21 stops inflating, the gas check film 11 is automatically closed, so that gas backflow in the test pipeline is prevented. The gas check film 11 has simple structure, realizes automatic opening or closing, and is more convenient to use. The check valve is a manual valve 12, the manual valve 12 is opened, the air charging device 21 is communicated with the test pipeline through the pressure measuring pipeline 10, and when the test pipeline reaches a set air pressure value, the manual valve 12 is manually closed, so that the gas in the test pipeline is prevented from flowing back. The manual valve 12 is simple to operate, good in sealing performance and high in operation accuracy.

Further, as shown in fig. 1 to 2, the check valve includes a gas check film 11 and a manual valve 12. Specifically, the manual valve 12 may be installed between the check gas film 11 and the pipeline inflation inlet 17 or between the check gas film 11 and the inflation device 21. When the pipeline pressure measuring device is not used, the manual valve 12 is in an open state, and the gas check film 11 is in a closed state. When the pipeline inflation inlet 17 is connected with a test pipeline, the inflation device 21 inflates air into the test pipeline through the pressure measuring pipeline 10, the air flushed by the inflation device 21 enables the gas check film 11 to be deformed and opened, the air of the inflation device 21 enters the test pipeline through the gas check film 11 and the manual valve 12, the air pressure in the test pipeline is increased, the pressure sensing piece 13 senses the air pressure value in the test pipeline and displays the air pressure value in the display 20, when the air pressure value reaches a set value, the inflation device 21 stops inflating, the shape of the gas check film 11 is restored to be in a closed state, the air in the test pipeline is prevented from flowing back, and further, the manual valve 12 is closed. The double sealing of the manual valve 12 and the gas check film 11 further enhances the sealing performance of the pressure measuring pipeline 10, prevents the pressure value of the test pipeline from changing due to aging of the gas check film 11 or other sealing reasons, and improves the pressure detection accuracy.

Further, as shown in fig. 1 to 2, an inflatable bag 14 is provided between the check valve and the inflator 21, and the inflatable bag 14 communicates with the check valve and the inflator 21, respectively. The inflatable air bag 14 provides the inflator 21 with a space for buffering gas, and when the inflation amount of the inflator 21 is small, the gas can be pressed into the check valve by pressing the inflatable air bag 14.

Further, as shown in fig. 1 to 2, the pressure measuring device includes a housing 30, the pressure measuring pipe 10 is installed in the housing 30, one end of the housing 30 is provided with a pipe extension port, one end of the pressure measuring pipe 10 provided with the pipe inflation port 17 extends to the outside of the pipe extension port, and the display 20 is installed outside the housing 30. The pressure measuring pipeline 10 is arranged in the shell 30, so that the pressure measuring pipeline 10 is effectively protected, and the appearance integrity is stronger. The display 20 is disposed outside the housing 30 for reading the air pressure, and preferably, the display 20 is disposed on the upper portion of the housing 30 in a distinct position for reading and viewing. The pipeline inflation port 17 extends out of the housing 30 to be connected with a test pipeline. The test pipeline is generally a hose, and when the pipeline inflation inlet 17 is connected with the hose, the hose is temporarily fixed through adhesive tapes and the like, so that the fixing and sealing requirements can be met.

Further, as shown in fig. 1 to 2, a valve installation cavity 15 is provided in the pressure measuring pipe 10, the manual valve 12 is rotatably installed in the valve installation cavity 15, the manual valve 12 is provided with an operation valve handle 16, one end of the operation valve handle 16 is connected with the manual valve 12, and the other end of the operation valve handle 16 extends out of the housing 30. Specifically, the manual valve 12 is a ball valve, and the upper end and the lower end of the manual valve 12 respectively abut against the inner wall of the valve installation cavity 15 to maintain the sealing performance of the pressure measuring pipeline 10. The middle part of the manual valve 12 is provided with a ventilation channel by rotating the operation valve handle 16, the two ends of the ventilation channel are communicated with the pressure measuring pipeline 10 to be in an open state, and the two ends of the ventilation channel are abutted against the inner wall of the pressure measuring pipeline 10 to be in a closed state by rotating the manual valve 12 by operating the operation valve handle 16. The manual valve 12 is rotated by operating the valve, so that the operation is convenient and accurate.

Further, as shown in fig. 1 to 2, the housing 30 includes a main body portion 31 and a grip portion 33, the grip portion 33 is mounted on a lower side of the main body portion 31, the main body portion 31 is provided with a pipeline mounting cavity 32, the pressure measuring pipeline 10 is mounted in the pipeline mounting cavity 32, the grip portion 33 is provided with an airbag mounting cavity 34, the pipeline mounting cavity 32 is communicated with the airbag mounting cavity 34, and the inflatable airbag 14 is located in the airbag mounting cavity 34. The housing 30 is formed in an L-shape by attaching the grip 33 to the lower side of the body 31, and the grip 33 can be held by a hand in operation, so that the operation can be performed with one hand and the operation is convenient.

Further, as shown in fig. 1 to 2, a slide grip 35 is slidably attached to a lower side of the housing 30, the air bag attachment chamber 34 opens toward the slide grip 35, and one side of the slide grip 35 facing the air bag attachment chamber 34 abuts against the inflatable air bag 14. When holding the grip portion 33, the sliding grip 35 is moved toward the airbag mounting cavity 34, so that the sliding grip 35 extrudes the inflatable airbag 14, and the gas in the inflatable airbag 14 flows to the check valve, and meanwhile, the inflating operation can be completed by one hand, the use is convenient, and the operation efficiency is improved.

Further, as shown in fig. 1 to 2, a cover body slide way 37 is provided at one end of the housing 30 where the pipe extension port is provided, a protection cover 36 is slidably installed on the cover body slide way 37, and the pressure measuring pipe 10 is located in the protection cover 36. When the pipeline pressure measuring device is not used, the pipeline inflation inlet 17 of the pressure measuring pipeline 10 is positioned in the protective cover 36 to protect the pressure measuring pipeline 10, and when the pipeline pressure measuring device is used, the protective cover 36 slides towards the pipeline inflation inlet 17 to expose the pipeline inflation inlet 17 so as to be connected with a test pipeline conveniently.

Further, as shown in fig. 1, the inflator 21 is installed in the airbag installation cavity 34, so that the inflator 21 and the pressure measurement pipeline 10 are both located in the housing 30, and the integrity is better, and the carrying and the operation are more convenient.

The utility model discloses a working process does: the air charging device 21 charges air into the test pipeline through the pressure measuring pipeline 10, and when the pressure value reaches a set value, the check valve is closed to prevent the air in the pipeline from flowing back, so that the set air pressure in the test pipeline is kept, and meanwhile, the air charging device 21 is stopped. The tightness of the test pipe can be judged by observing the change of the value in the display 20. If the value in the display 20 is kept unchanged, it indicates that the air pressure in the pipeline system is not changed, and the sealing performance is good; if the value in the display 20 changes, it indicates that the air pressure in the pipeline changes and the sealing performance does not reach the standard.

To sum up, the embodiment of the utility model provides a pipeline pressure measuring device aerifys the test tube through aerating device 21, wherein prevents to fill the gas reflux after filling through the check valve, and atmospheric pressure formation signal transfer in the test tube through pressure sensing piece 13 response is to display 20, and display 20 shows the atmospheric pressure value that atmospheric pressure signal corresponds in display 20, is convenient for read, and the test result accuracy is high.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a pipeline pressure measuring device which characterized in that: including pressure measurement pipeline and display, the one end of pressure measurement pipeline is equipped with the pipeline inflation inlet, and the other end is connected with aerating device, install the check valve in the pressure measurement pipeline, the check valve is located aerating device with between the pipeline inflation inlet, be equipped with the forced induction spare in the pressure measurement pipeline, the forced induction spare is located the check valve with between the pipeline inflation inlet, the forced induction spare with display signal connection.

2. The pipe pressure measuring device according to claim 1, wherein: the check valve is a gas check film or a manual valve.

3. The pipe pressure measuring device according to claim 1, wherein: the check valve comprises a gas check film and a manual valve.

4. The pipe pressure measuring device according to claim 3, wherein: and an inflatable air bag is arranged between the check valve and the inflating device and is respectively communicated with the check valve and the inflating device.

5. The pipe pressure measuring device according to claim 4, wherein: the pressure measuring pipeline is arranged in the shell, a pipeline extending opening is formed in one end of the shell, one end, provided with the pipeline inflating opening, of the pressure measuring pipeline extends to the outside of the pipeline extending opening, and the display is arranged outside the shell.

6. The pipe pressure measuring device according to claim 5, wherein: the pressure measuring pipeline is internally provided with a valve installation cavity, the manual valve is rotatably installed in the valve installation cavity and provided with an operation valve handle, one end of the operation valve handle is connected with the manual valve, and the other end of the operation valve handle extends out of the shell.

7. The pipe pressure measuring device according to claim 5, wherein: the casing includes main part and handle portion, handle portion install in the downside of main part, the pipeline installation cavity has been seted up to the main part, the pressure measurement pipe mounting in the pipeline installation cavity, handle portion is equipped with the gasbag installation cavity, the pipeline installation cavity with gasbag installation cavity intercommunication, it is located to aerify the gasbag installation cavity.

8. The pipe pressure measuring device according to claim 7, wherein: the inflatable air bag is characterized in that a sliding handle is slidably mounted on the lower side of the shell, the opening of the air bag installation cavity faces the sliding handle, and one side of the sliding handle, which faces the air bag installation cavity, abuts against the inflatable air bag.

9. The pipe pressure measuring device according to claim 5, wherein: the pressure measuring device comprises a shell, a pipeline extending port is arranged on the shell, a cover body slide way is arranged at one end, provided with the pipeline extending port, of the shell, a protective cover is slidably mounted on the cover body slide way, and the pressure measuring pipeline is located in the protective cover.

10. The pipe pressure measuring device according to claim 7, wherein: the inflation device is arranged in the air bag installation cavity.