CN114441116A - High efficiency tube bank pressure measuring device - Google Patents

Abstract

The invention discloses a high-efficiency tube bundle pressure measuring device which comprises a box body, wherein a connecting piece is arranged on the inner bottom wall of the box body, an air pipe is arranged in the box body through the connecting piece, the tail end of the air pipe extends out of the box body, a filter screen is arranged in the air pipe, a gun body is sleeved on the surface of the air pipe, a rectangular mounting groove is formed in the front surface of the gun body, a pressing block is embedded in the mounting groove, a transversely-arranged circular tube is arranged at one end of the gun body, and a pressure measuring seat is arranged on the front surface of an air bag through a fastening bolt. According to the invention, the circular tube, the air bag, the blocking plate, the electric telescopic rod and the sealing ring are arranged, and the electric telescopic plate can move in a telescopic manner, so that the volume of gas in the air bag can be changed correspondingly, a user can conveniently seal the device with the pipe body member to be detected simply and efficiently when carrying out pressure measurement operation, and the need of manual standing, bending and pressing operation is reduced.

Description

A high-efficiency tube bundle pressure measuring device

technical field

The invention relates to the technical field of pressure measuring instruments, in particular to a high-efficiency tube bundle pressure measuring device.

Background technique

The pipeline is an important part for transporting fluid substances, and the maintenance of its internal tightness is of great significance for fluid transportation. Once the pipeline leaks, it is not only easy to cause fluid diffusion and leakage for the fluid being transported, but also for some flammable and explosive gases and some. Once the corrosive gas leaks, it will not only cause great harm to the environment, but also threaten the safety of life and property of the people. Therefore, it is extremely necessary to measure the pressure of the pipeline.

The deficiencies of the existing load cells are:

1. The reference document CN212537533U discloses a new type of pressure gauge tip, “The present invention discloses a new type of pressure gauge tip, including a gun body, the left side of the front of the gun body is fixedly connected with an external interface, the The left side of the gun body is fixedly connected with a hydraulic valve, the right side of the hydraulic valve is fixedly connected with a first inner pipe, the outer ring of the first inner pipe is sheathed with an airbag, and the right side of the inner cavity of the airbag is fixed A second inner pipe is connected, a hydraulic pipe is fixedly connected to the right side of the second inner pipe, a transverse pipe is fixedly connected to the right side of the hydraulic pipe, and a filter plate is fixedly connected to the inner cavity of the transverse pipe. Filter holes are provided on both sides of the filter plate, a leak detection box is fixedly connected to the right side of the horizontal pipe, a component groove is opened in the inner cavity of the leak detection box, and a leak detection sensor is fixedly connected to the inner cavity of the component groove , the outer wall of the leak sensor is fixedly connected with a fixing rod, the right side of the leak detection sensor is fixedly connected with a listening bar, and the left side of the outer wall of the leak detection sensor is provided with a circular hole", but the device is working , it is necessary to manually stand and bend over, and press the gun body into the inside of the tube body member to achieve the purpose of sealing the gun body and the tube body member. The operation is laborious and inefficient;

2. The procedures of the existing pressure measuring instrument are cumbersome in use, and the fault judgment standard is relatively complicated, and the operation is not convenient enough.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a high-efficiency tube bundle pressure measuring device to solve the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a high-efficiency tube bundle pressure measuring device, comprising a box body, the inner bottom wall of the box body is provided with a connecting piece, and an air pipe is installed inside the box body through the connecting piece , the tail end of the gas pipe extends out of the inside of the box, the inside of the gas pipe is installed with a filter screen, the surface of the gas pipe is sleeved with a gun body, and the front of the gun body is provided with a rectangular installation groove, the A pressing block is fitted inside the installation groove, and the front of the pressing block protrudes from the inside of the installation groove, and a horizontally arranged circular tube is installed at one end of the gun body;

An airbag is installed on the front of the circular tube, a sealing ferrule is installed at the connection between the airbag and the circular tube, an electric telescopic rod is connected to the rear wall of the circular tube, and a blocking plate is installed at the tail end of the electric telescopic rod. And the blocking plate is located inside the airbag, and the diameter of the blocking plate is larger than the inner diameter of the circular tube.

Preferably, a pressure measuring seat is installed on the front surface of the airbag through fastening bolts, a pressure sensor is installed on the front surface of the pressure measuring seat, and a surface of the pressure sensor is covered with a protective film.

Preferably, the surface of the gun body is wrapped with a non-slip cover.

Preferably, a compression spring is installed on the back of the pressing block, and a pressure sensor is installed at the tail end of the compression spring.

Preferably, the back of the pressure sensor is fitted with the inner wall of the installation slot, and the pressure sensor is electrically connected to the electric telescopic rod.

Preferably, a cover plate is installed on the top of the box body through hinges, a display screen is installed on the inner bottom wall of the box body, and the display screen is electrically connected with the pressure sensor.

Preferably, the tail end of the air tube penetrates through the gun body and the inside of the round tube, and is flush with the tail end of the air bag.

Compared with the prior art, the beneficial effects of the present invention are:

1. The present invention is equipped with a circular tube, an airbag, a blocking plate, an electric telescopic rod and a sealing ferrule, and through the telescopic movement of the electric telescopic plate, the blocking plate can be driven away from or close to the trachea, thereby making the gas volume inside the airbag generate a corresponding volume. Change, through the switching of the inflation or shriveled state of the airbag, it is convenient for the user to seal the device with the tube body member to be tested in a simple and efficient manner during the pressure measurement operation, reducing the need for manual standing, bending and pressing operations. In addition, the arrangement of the sealing ferrule can ensure the stability of the air tightness of the connection between the round tube and the airbag, and ensure the normal expansion and contraction of the airbag.

2. In the present invention, by installing a pressure measuring seat, a pressure sensor and a protective film, when there is no abnormal situation such as cracks inside the pipe body components, the pressure value detected by the pressure sensor is a constant state, and by checking whether the pressure value on the surface of the display screen occurs The change can be used to determine whether there is a pressure relief condition inside the pipe body, which is simple and fast, and the protective film can isolate the pressure sensor from the fluid, protect the pressure sensor from corrosive components in the fluid, and protect the service life of the pressure sensor.

Description of drawings

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

Fig. 2 is a schematic diagram of the mounting structure of the gun body and the pressing block of the present invention;

Fig. 3 is the structural representation of A place of the present invention;

FIG. 4 is a schematic diagram of the structure of the trachea and the filter screen of the present invention.

In the figure: 1. Gun body; 101. Installation slot; 102. Anti-skid sleeve; 2. Pressing block; 201. Squeeze spring; 202. Pressure sensor; 3. Round tube; 303, electric telescopic rod; 304, sealing ring; 4, cover plate; 5, box body; 501, trachea; 502, display screen; 6, pressure measuring seat; 601, pressure sensor; 602, protective film; 7, filter network.

Detailed ways

The technical solutions 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, with a specific orientation. The orientation configuration and operation are therefore not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense, for example, "connected" may be a fixed connection It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example 1:

Please refer to FIG. 1-FIG. 4, an embodiment provided by the present invention: a high-efficiency tube bundle pressure measuring device, including a box body 5, the inner bottom wall of the box body 5 is installed with a connector, the box body 5 The inside of the trachea 501 is installed with an air pipe 501 through a connector, the tail end of the air pipe 501 extends out of the interior of the box 5, a filter screen 7 is installed inside the air pipe 501, and the gun body 1 is sleeved on the surface of the air pipe 501, The front of the gun body 1 is provided with a rectangular installation groove 101, the inside of the installation groove 101 is fitted with a pressing block 2, and the front of the pressing block 2 protrudes from the inside of the installation groove 101, the gun body One end of 1 is installed with a horizontally arranged circular tube 3. The rear end of the gas tube 501 runs through the gun body 1 and the interior of the circular tube 3 and is flush with the rear end of the air bag 301. The top of the box body 5 is installed through a hinge There is a cover plate 4;

A compression spring 201 is installed on the back of the pressing block 2, a pressure sensor 202 is installed at the rear end of the compression spring 201, and the back of the pressure sensor 202 is attached to the inner wall of the installation groove 101. The pressure sensor 202 is electrically connected with the electric telescopic rod 303 .

An airbag 301 is installed on the front of the circular tube 3, a sealing ferrule 304 is installed at the connection between the airbag 301 and the circular tube 3, and an electric telescopic rod 303 is connected to the rear wall of the circular tube 3. The electric telescopic rod 303 A blocking plate 302 is installed at the rear end of the airbag 301 , and the blocking plate 302 is located inside the airbag 301 , and the diameter of the blocking plate 302 is larger than the inner diameter of the circular tube 3 .

Specifically, a connecting gas pipe is installed inside the box body 5, the connecting gas pipe is detachably connected to an external air pump, and the connecting gas pipe is connected to one end of the gas pipe 501. Therefore, when the device is in use, an external air pump can be used to achieve the purpose of conveying gas to the gas pipe 501. The box body 5 and the cover plate 4 can form a closable open storage space, which is convenient for the storage and arrangement of the device and also convenient for carrying the device;

The trachea 501 and the air bag 301 can form an unobstructed gas channel, and then when the user presses the pressing block 2, a force can be applied to the pressing block 2, at this time, the compression spring 201 is compressed and deformed by the force, and then the pressure is sensed. The pressure sensor 202 generates a squeezing force. When the pressure sensor 202 detects the squeezing force, it can send a closing signal to the electric telescopic rod 303, thereby driving the blocking plate 302 to move to the rear of the airbag 301. At this time, the blocking plate 302 gradually approaches. The rear end of the trachea 501 can squeeze part of the gas inside the airbag 301 into the air intake pipe 501. At this time, the airbag 301 is in a shriveled state, which can facilitate the device to be easily removed from the clamped tube body member. At block 2, the pressure sensor 202 can send a start signal to the electric telescopic rod 303, and then the electric telescopic rod 303 extends the rod body. At this time, the blocking plate 302 is located in front of the trachea 501, and the trachea 501 can deliver gas to the inside of the air bag 301, thereby making the air bag 301 expands and closely fits with the inner wall of the tube body member with detection, so that there is no need to manually stand and bend over to press the device and the tube body member to achieve the sealing effect, forming an efficient and labor-saving pressure measurement structure.

The existence of the sealing ferrule 304 can ensure the tightness of the connection between the circular tube 3 and the airbag 301 , thereby ensuring that the airbag 301 can smoothly achieve the corresponding expansion and contraction.

In addition, the interior of the filter screen 7 contains filter paper and activated carbon plate, which can filter and purify the gas flowing through the air pipe 501, so as to ensure the cleanliness of the air in the air bag 301, avoid the corrosion of the air bag 301, and protect the air bag 301. Service life of air bag 301 .

Embodiment 2:

Please refer to FIG. 1 , an embodiment provided by the present invention: a high-efficiency tube bundle pressure measuring device, including a pressure measuring seat 6 , a pressure measuring seat 6 is installed on the front of the air bag 301 through fastening bolts, and the pressure measuring seat 6 is installed on the front surface of the airbag 301 A pressure sensor 601 is installed on the front of the seat 6 , the surface of the pressure sensor 601 is covered with a protective film 602 , and a display screen 502 is installed on the inner bottom wall of the box 5 , and the display screen 502 is electrically connected to the pressure sensor 601 .

The surface of the gun body 1 is surrounded by an anti-skid cover 102 , and the use of the anti-skid cover 102 can enhance the gripping force between the skin of the hand and the surface of the gun body 1 .

Specifically, after the device is expanded and sealed into the tubular body member, the pressure measuring seat 6 installed on the front of the airbag 301 is immersed in the fluid inside the tubular body member. When there is no abnormal situation such as cracks inside the pipe body, the pressure value detected by the pressure sensor 601 is a constant state. By checking whether the pressure value on the surface of the display screen 502 changes, it can be judged whether there is a pressure relief condition inside the pipe body member, which is simple and fast. , and the protective film 602 can isolate the pressure sensor 601 from the fluid, protect the pressure sensor 601 from being invaded by corrosive components in the fluid, and protect the service life of the pressure sensor 601 .

Working principle: When using this device for pressure measurement, the connecting trachea can be externally connected to the air pump, and then the pressure block 2 can be squeezed inward to drive the pressure sensor 202 to be squeezed and then sent to the electric telescopic rod 303 to close. signal, and then drive the electric telescopic rod 303 to be stored backward, drive the blocking plate 302 to be close to the tail end of the trachea 501, and then drive part of the gas inside the airbag 301 to enter the inside of the trachea 501. At this time, the volume of the gas inside the airbag 301 is reduced and is in a shriveled state. The airbag 301 is put into the tube member to be tested containing the fluid, and then the pressing block 2 is released. At this time, under the elastic action of the pressing spring 201, the pressing action detected by the pressure sensor 202 gradually decreases to zero. At this time, the electric telescopic rod 303 can be activated, and then the blocking plate 302 moves forward, and then moves to the front of the trachea 501, losing the blocking effect on the trachea 501, thereby facilitating the trachea 501 to transport gas into the airbag 301, so that the airbag 301 expands, And then press contact with the inner wall of the tube member to form a sealing effect;

Afterwards, by checking whether the relevant data detected by the pressure sensor 601 fluctuates through the display screen 502, it can be judged whether there is a leakage hidden danger in the detected pipe member, which is simple, quick and easy to operate.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (7)

1. The utility model provides a high efficiency tube bank pressure measuring device, includes box (5), its characterized in that: the inner bottom wall of the box body (5) is provided with a connecting piece, an air pipe (501) is arranged in the box body (5) through the connecting piece, the tail end of the air pipe (501) extends out of the box body (5), a filter screen (7) is arranged in the air pipe (501), the surface of the air pipe (501) is sleeved with a gun body (1), the front surface of the gun body (1) is provided with a rectangular mounting groove (101), a pressing block (2) is embedded in the mounting groove (101) and protrudes out of the mounting groove (101), and one end of the gun body (1) is provided with a circular pipe (3) which is transversely arranged;

gasbag (301) are installed in the front of pipe (3), sealed lasso (304) are installed with pipe (3) junction in gasbag (301), the back wall of pipe (3) is connected with electric telescopic handle (303), closure plate (302) are installed to the tail end of electric telescopic handle (303), and closure plate (302) are located the inside of gasbag (301), the diameter of closure plate (302) is greater than the internal diameter of pipe (3).

2. The high efficiency tube bundle pressure measuring device of claim 1, wherein: the front of gasbag (301) is installed through fastening bolt and is surveyed pressure seat (6), pressure sensor (601) are installed in the front of surveying pressure seat (6), the surface covering of pressure sensor (601) has protecting film (602).

3. The high efficiency tube bundle pressure measuring device of claim 1, wherein: the surface of the gun body (1) is wrapped with an anti-slip sleeve (102).

4. The high efficiency tube bundle pressure measuring device of claim 1, wherein: the back of the pressing block (2) is provided with an extrusion spring (201), and the tail end of the extrusion spring (201) is provided with a pressure sensor (202).

5. The apparatus of claim 4, wherein: the back of pressure sensor (202) and the inner wall laminating of mounting groove (101), pressure sensor (202) and electric telescopic handle (303) electric connection.

6. The high efficiency tube bundle pressure measuring device of claim 1, wherein: the top of box (5) installs apron (4) through the hinge, display screen (502) are installed to the inner diapire of box (5), and display screen (502) and pressure sensor (601) electric connection.

7. The high efficiency tube bundle pressure measuring device of claim 1, wherein: the tail end of the air pipe (501) penetrates through the gun body (1) and the inner part of the round pipe (3) and is flush with the tail end of the air bag (301).

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