Pipeline natural gas leakage early warning equipment

Abstract

The utility model discloses a pipeline natural gas leakage early warning device which comprises a base, the top of the base is fixedly connected with a U-shaped frame, two sponge pads are fixedly embedded in the inner wall of the U-shaped frame, a rectangular groove is formed in the bottom of the base, a limiting mechanism is arranged at the bottom of the base, a shaft hole is formed in the inner wall of the U-shaped frame, and the shaft hole is communicated with the rectangular groove. The inner wall of the shaft hole is rotationally connected with a shaft body, and the two ends of the shaft body are in threaded connection with nuts. According to the utility model, the sponge pad, the shaft body, the mounting seat, the arc-shaped block, the filter screen, the telescopic sleeve, the telescopic rod, the through hole, the rectangular mounting plate, the display, the wiring pipe, the spiral cable, the grip and the bolt are arranged, the telescopic rod and the telescopic sleeve stretch out and draw back, the length is adjusted, the leakage detector body can be rotatably stored in the U-shaped frame, and meanwhile, the filter screen is wiped, so that the leakage detection efficiency is improved. And the filter screen can be prevented from being blocked, and the whole filter screen can be stored and is convenient to carry and place.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas, in particular to a pipeline natural gas leakage warning device. Background Art

[0002] As a clean and commonly used energy source, natural gas plays an important role in production and life. It is not only an important energy source in cities, but also occupies an important position in cooking, heating, etc. in rural areas. To avoid natural gas becoming a safety hazard, in most cases, natural gas is buried underground and transported through pipelines. Since the pipelines are buried underground, they may be damaged due to long-term disrepair or damage by third-party construction. For example, for gas pipelines adjacent to various underground pipelines in the city, if damaged, the leaked natural gas may move upward and continuously spread in the underground space. Currently, a hand-pushed buried pipeline leakage detector (hand-pushed leakage detector) is used to detect pipeline leakage. One only needs to walk above the gas pipeline, and the leakage location of the underground gas transmission pipeline can be directly detected on the ground through the instrument. When the air containing combustible gas is sent to the hot-wire type gas sensor by the internal air pump, the resistance value of the detection element will increase rapidly (the magnitude of the change in its resistance value is proportional to the concentration of the gas), and at the same time, a voltage signal is output, which is amplified by the circuit and sent to the display part, and an alarm signal is generated.

[0003] In the prior art, the hand-pushed leakage detector needs to be moved by manual pushing. Since the overall design is inclined, when storing and carrying it, it occupies a large area and is not easy to place. At the same time, when it needs to stop on the ground, the inclined design requires manual support, otherwise it is easy to fall. At the same time, some instruments on the existing hand-pushed leakage detectors are moved by hanging them around the neck, which is not convenient for users. Therefore, we propose a pipeline natural gas leakage warning device to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a pipeline natural gas leakage warning device.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pipeline natural gas leakage warning device, including a base, a U-shaped vehicle frame is fixedly connected to the top of the base, two sponge pads are fixedly embedded in the inner wall of the U-shaped vehicle frame, a rectangular groove is opened at the bottom of the base, a limiting mechanism is arranged at the bottom of the base, a shaft hole is opened in the inner wall of the U-shaped vehicle frame, a shaft body is rotatably connected to the inner wall of the shaft hole, nuts are threadedly connected to both ends of the shaft body, a mounting seat is fixedly sleeved on the outer wall of the shaft body, a leakage detector body is fixedly connected to the outer wall of the mounting seat, two arc-shaped blocks are fixedly connected to the outer wall of the leakage detector body, two filter nets are fixedly embedded in the outer wall of the leakage detector body, and a telescopic mechanism is arranged on the outer wall of the U-shaped leakage detector body.

[0007] Preferably, the limiting mechanism includes a top rod, a through hole is opened at the top of the base, the inner wall of the through hole is slidably connected to the outer wall of the top rod, a circular contact plate is fixedly connected to the bottom of the top rod, a rectangular block is fixedly sleeved on the outer wall of the top rod, a spring is sleeved on the outer wall of the top rod, the bottom of the spring is fixedly connected to the inner wall of the rectangular groove, and the top of the spring is fixedly connected to the bottom of the rectangular block. By setting the spring to drive the top rod to expand and contract, it is ensured that after the leakage detector body rotates out of the U-shaped vehicle frame, the top rod moves upward through the spring.

[0008] Preferably, the telescopic mechanism includes two telescopic sleeves, one end of each of the two telescopic sleeves is fixedly connected to the outer wall of the leakage detector body, telescopic rods are slidably connected to the inner walls of the two telescopic sleeves, a plurality of through holes are uniformly opened on the outer walls of the telescopic rods, a same rectangular mounting plate is slidably sleeved on the outer walls of the two telescopic rods, a display is fixedly connected to the outer wall of the rectangular mounting plate, and a same grip is fixedly connected to one end of the two telescopic rods. By setting the telescopic mechanism to adjust the position of the grip and change the position of the display, it is convenient for use.

[0009] Preferably, four traveling wheels are rotatably connected to the outer wall of the base, and the whole travels through the four traveling wheels.

[0010] Preferably, the outer walls of the two arc-shaped blocks are respectively pressed against the inner wall of the U-shaped vehicle frame, and the outer walls of the two filter nets are respectively in contact with the outer walls of the two sponge pads. The sponge pads are provided to clean the filter nets.

[0011] Preferably, threaded holes are opened on the outer walls of the telescopic sleeve and the rectangular mounting plate, bolts are threadedly connected to the inner walls of the threaded holes, and one end of the bolt on the telescopic sleeve is located in one of the through holes to fix the telescopic rod in the telescopic sleeve.

[0012] Preferably, a wire running pipe is fixedly connected to the outer wall of the telescopic sleeve, a spiral cable is fixedly connected to the outer wall of the wire running pipe, one end of the spiral cable is fixedly connected to the outer wall of the display, and the spiral cable and the wire running pipe facilitate the electrical connection between the display and the leakage detector body.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] In this solution, by setting a sponge pad, a shaft body, a mounting seat, an arc-shaped block, a filter screen, a telescopic sleeve, a telescopic rod, a through hole, a rectangular mounting plate, a display, a wire duct, a spiral cable, a grip and a bolt, the telescopic rod and the telescopic sleeve can be telescoped to adjust the length, and the leak detector body can be rotatably stored in the U-shaped frame. At the same time, the filter screen is wiped to avoid blockage on the filter screen, and the whole can be stored, which is convenient for carrying and placing;

[0015] After the leak detector body is rotatably stored in the U-shaped frame, it drives the circular contact plate in the limit mechanism to move downward, and the circular contact plate contacts the ground or the placement place, avoiding the base from slipping and ensuring its stability. At the same time, the whole is an integrated design, which increases the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the following description of the specific embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic three-dimensional structure diagram of a pipeline natural gas leakage warning device proposed by the present utility model;

[0018] Figure 2 Schematic cross-sectional structure diagram of a pipeline natural gas leakage warning device proposed by the present utility model;

[0019] Figure 3 Schematic structure diagram of a partial cross-section of a pipeline natural gas leakage warning device proposed by the present utility model;

[0020] Figure 4 For a pipeline natural gas leakage warning device proposed by the present utility model Figure 3 Enlarged structure diagram of part A;

[0021] Figure 5 Schematic structure diagram of the arc-shaped block of a pipeline natural gas leakage warning device proposed by the present utility model.

[0022] In the figure: 1, base; 2, walking wheels; 3, U-shaped frame; 4, sponge pads; 5, rectangular groove; 6, ejector rod; 7, circular contact plate; 8, spring; 9, rectangular block; 10, shaft body; 11, mounting seat; 12, leakage detector body; 13, arc-shaped block; 14, filter screen; 15, telescopic sleeve; 16, telescopic rod; 17, through hole; 18, rectangular mounting plate; 19, display; 20, wire conduit; 21, spiral cable; 22, grip; 23, bolt. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] As Figures 1 - 5 shown, it relates to a pipeline natural gas leakage warning device, including a base 1. Four walking wheels 2 are rotatably connected to the outer wall of the base 1. A U-shaped frame 3 is fixedly connected to the top of the base 1. Two sponge pads 4 are fixedly embedded in the inner wall of the U-shaped frame 3 through existing screws, and the two sponge pads 4 can be replaced after long-term use.

[0025] A rectangular groove 5 is opened at the bottom of the base 1. A shaft hole is opened in the inner wall of the U-shaped frame 3. A shaft body 10 is rotatably connected to the inner wall of the shaft hole. Nuts are threadedly connected to both ends of the shaft body 10, and the shaft body 10 is fixed on the U-shaped frame 3 through the two nuts.

[0026] A mounting seat 11 is fixedly sleeved on the outer wall of the shaft body 10. A leakage detector body 12 is fixedly connected to the outer wall of the mounting seat 11. Two arc-shaped blocks 13 are fixedly connected to the outer wall of the leakage detector body 12. The outer walls of the two arc-shaped blocks 13 are both pressed against the inner wall of the U-shaped frame 3. When storing, the leakage detector body 12 is limited by the friction force between the two arc-shaped blocks 13 and the U-shaped frame 3.

[0027] The outer walls of the two filter screens 14 are respectively in contact with the outer walls of the two sponge pads 4. Two filter screens 14 are fixedly embedded in the outer wall of the leakage detector body 12. During the rotation of the leakage detector body 12, the sponge pads 4 wipe the filter screens 14.

[0028] A limiting mechanism is provided at the bottom of the base 1. The limiting mechanism includes a push rod 6. A through hole is opened at the top of the base 1, and the inner wall of the through hole is slidably connected to the outer wall of the push rod 6. A circular contact plate 7 is fixedly connected to the bottom of the push rod 6. After the push rod 6 is squeezed, it drives the circular contact plate 7 to move. A rectangular block 9 is fixedly sleeved on the outer wall of the push rod 6. A spring 8 is sleeved on the outer wall of the push rod 6. The bottom of the spring 8 is fixedly connected to the inner wall of the rectangular groove 5, and the top of the spring 8 is fixedly connected to the bottom of the rectangular block 9. The spring 8 drives the rectangular block 9 and the push rod 6 to reset, so that the circular contact plate 7 moves.

[0029] A telescopic mechanism is provided on the outer wall of the U-shaped leak detector body 12. The telescopic mechanism includes two telescopic sleeves 15. One end of each of the two telescopic sleeves 15 is fixedly connected to the outer wall of the leak detector body 12. The inner walls of the two telescopic sleeves 15 are both slidably connected to a telescopic rod 16. A plurality of through holes 17 are evenly opened on the outer wall of the telescopic rod 16.

[0030] The outer walls of the two telescopic rods 16 are slidably sleeved with the same rectangular mounting plate 18. Threaded holes are opened on the outer walls of the telescopic sleeve 15 and the rectangular mounting plate 18. A bolt 23 is threadedly connected to the inner wall of the threaded hole. One end of the bolt 23 on the rectangular mounting plate 18 presses on the telescopic rod 16. A display 19 is fixedly connected to the outer wall of the rectangular mounting plate 18.

[0031] One end of the two telescopic rods 16 is fixedly connected to the same grip 22. The grip 22 is held by hand to push the whole to move. A wire conduit 20 is fixedly connected to the outer wall of the telescopic sleeve 15. A spiral cable 21 is fixedly connected to the outer wall of the wire conduit 20. The spiral cable 21 is in a spiral shape, and this structure endows it with flexibility and stretchability. One end of the spiral cable 21 is fixedly connected to the outer wall of the display 19.

[0032] Working principle: When in use, loosen the bolt 23 on the rotating telescopic sleeve 15 so that one end thereof no longer presses against the outer wall of the telescopic rod 16, and slide the telescopic rod 16 out of the telescopic sleeve 15 to increase the length of the hand-held part. At the same time, loosen the bolt 23 on the rectangular mounting plate 18 to release the position fixation of the rectangular mounting plate 18, and move the rectangular mounting plate 18 and the display 19 through the two telescopic rods 16, while the spiral cable 21 expands and contracts due to its own elasticity; step on the outer wall of the U-shaped frame 3 and rotate the grip 22 to drive the leak detector body 12 to rotate through the shaft body 10. During the rotation, the sponge pad 4 wipes the filter screen 14 to prevent the filter screen 14 from being blocked, facilitating the subsequent air pump in the leak detector body 12 to pump in external air; after rotating to a certain angle, rotate the two nuts to squeeze against the outer wall of the U-shaped frame 3 to fix the positions of the shaft body 10 and the mounting seat 11, ensuring that the inclination angle of the leak detector body 12 is fixed to facilitate subsequent pushing of the base 1 and the multiple walking wheels 2 for walking. Similarly, when not in use, the leak detector body 12 and the telescopic rod 16 can be stored. And during storage, the leak detector body 12 is limited by the frictional force between the two arc-shaped blocks 13 and the U-shaped frame 3. And when the leak detector body 12 rotates and is stored in the U-shaped frame 3, the bottom of the leak detector body 12 presses against the ejector rod 6, driving the ejector rod 6 to move downward. The downward movement of the ejector rod 6 drives the circular contact plate 7 to move downward, and the circular contact plate 7 moves downward to contact the ground or the placement location, preventing the base 1 from slipping and ensuring its stability, increasing the overall convenience.

[0033] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. Plus, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. And for the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0034] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pipeline natural gas leakage early warning device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a U-shaped frame (3), the inner wall of the U-shaped frame (3) is fixedly inlaid with two sponge pads (4), the bottom of the base (1) is provided with a rectangular groove (5), the bottom of the base (1) is provided with a limit mechanism, the inner wall of the U-shaped frame (3) is provided with an axial hole, the inner wall of the axial hole is rotatably connected to an axle body (10), both ends of the axle body (10) are threadedly connected to nuts, the outer wall of the axle body (10) is fixedly sleeved with a mounting seat (11), the outer wall of the mounting seat (11) is fixedly connected to a leakage detector body (12), the outer wall of the leakage detector body (12) is fixedly connected to two arc blocks (13), the outer wall of the leakage detector body (12) is fixedly inlaid with two filter screens (14), and the outer wall of the U-shaped leakage detector body (12) is provided with a telescopic mechanism.

2. A pipeline natural gas leakage early warning device according to claim 1, characterized in that: The limiting mechanism comprises a push rod (6), a through hole is opened at the top of the base (1), the inner wall of the through hole is slidably connected to the outer wall of the push rod (6), the bottom of the push rod (6) is fixedly connected to a circular contact plate (7), the outer wall of the push rod (6) is fixedly sleeved with a rectangular block (9), the outer wall of the push rod (6) is sleeved with a spring (8), the bottom of the spring (8) is fixedly connected to the inner wall of the rectangular groove (5), and the top of the spring (8) is fixedly connected to the bottom of the rectangular block (9).

3. The pipeline natural gas leakage early warning device according to claim 1 is characterized in that: The telescopic mechanism comprises two telescopic sleeves (15), one end of each of the two telescopic sleeves (15) is fixedly connected to the outer wall of the leakage detector body (12), the inner walls of the two telescopic sleeves (15) are slidably connected to telescopic rods (16), the outer walls of the telescopic rods (16) are evenly provided with a plurality of through holes (17), the outer wall sliding sleeves of the two telescopic rods (16) are provided with a same rectangular mounting plate (18), the outer wall of the rectangular mounting plate (18) is fixedly connected to a display (19), and one end of the two telescopic rods (16) is fixedly connected to a same handle (22).

4. The pipeline natural gas leakage early warning device according to claim 1, characterized in that: The outer wall of the base (1) is rotatably connected to four running wheels (2).

5. The pipeline natural gas leakage early warning device according to claim 1, characterized in that: The outer walls of the two arc-shaped blocks (13) are pressed against the inner wall of the U-shaped frame (3), and the outer walls of the two filter screens (14) are in contact with the outer walls of the two sponge pads (4) respectively.

6. The pipeline natural gas leakage early warning device according to claim 3 is characterized in that: The outer walls of the telescopic sleeve (15) and the rectangular mounting plate (18) are both provided with threaded holes, and the inner walls of the threaded holes are threadedly connected with bolts (23).

7. The pipeline natural gas leakage early warning device according to claim 3 is characterized in that: The outer wall of the telescopic sleeve (15) is fixedly connected to a wiring tube (20), the outer wall of the wiring tube (20) is fixedly connected to a spiral cable (21), and one end of the spiral cable (21) is fixedly connected to the outer wall of the display (19).

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