Natural gas pipeline maintenance plugging device

Abstract

The natural gas pipeline maintenance plugging device comprises a bearing table, electric push rods are assembled on the left side wall and the right side wall of the bearing table, and bearing seats are assembled at the driving ends of the electric push rods; an air bag is assembled outside the bearing seat and at the front end of the supporting rod, and a leather cup is assembled at the front end of the bearing seat; detection boxes are assembled at the left and right ends of the outer wall of the bearing seat; buzzers are assembled at the top ends of the detection boxes; a sensor is mounted at the upper end of the inner wall of the detection box, a lifting floating plate is assembled in the detection box, an electric shock block is assembled at the top end of the lifting floating plate right below the sensor, and an air inlet is formed in the outer wall of the detection box; according to the natural gas pipeline maintenance plugging device, the lantern ring is arranged outside the gas pipeline, and the gas box is arranged in the lantern ring, so that gas is detected, buzzing alarm is carried out at the first time when leakage occurs, and then the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, specifically a natural gas pipeline repair and sealing device. Background Technology

[0002] Natural gas, as a clean energy source, is widely used in various industries. Natural gas needs to be transported through pipelines, but during transportation, pipelines are often damaged, leading to natural gas leaks. When repairing natural gas pipelines, it is necessary to seal the pipeline on both sides of the damaged pipeline and then replace the damaged parts. Existing natural gas pipeline sealing devices have certain drawbacks in use and are prone to leakage.

[0003] Existing technology, patent number CN202120797067.8, discloses a natural gas pipeline repair and sealing device, including a gas pipe and a placement platform. A fixed platform is fixedly connected to the placement platform, and two telescopic rod assemblies are fixedly connected to both sides of the fixed platform. Each telescopic rod assembly includes a telescopic main rod fixed to the side wall of the fixed platform, and a telescopic secondary rod slidably connected to the free end of the telescopic main rod. The outer side of the end of the telescopic secondary rod is located inside the gas pipe and fixedly connected to an air bladder. The air bladder contacts the inner wall of the gas pipe. An air pump is also fixedly connected to the placement platform, and the air pump is connected to one end of the gas pipe. This utility model uses an air bladder for sealing. After the air bladder is inflated, it makes tight contact with the inner wall of the gas pipe, and the sealing quality is much higher than that of traditional rubber cups or sealing blocks, avoiding gas leakage. This utility model is equipped with an external pressure assembly. The meniscus in the external pressure assembly applies pressure to the outer wall of the gas pipe, so that the pressure on the inner and outer sides of the gas pipe is mutually offset, avoiding uneven stress on the gas pipe and thus preventing damage.

[0004] The aforementioned patent also has some shortcomings. For example, it lacks a gas alarm mechanism, and if a leak occurs during the sealing process, it is not easy to detect it immediately. Therefore, the existing technology needs to be improved. Utility Model Content

[0005] The purpose of this utility model is to provide a natural gas pipeline repair and sealing device to solve the problem mentioned in the background art that it does not have a gas alarm mechanism and is not easy to detect in time if a leak occurs during the sealing process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a natural gas pipeline repair and sealing device, including a support platform, wherein electric push rods are mounted on both the left and right side walls of the support platform, and a support seat is mounted on the drive end of the electric push rods;

[0007] Support rods are installed at both the upper and lower ends of the rear side of the outer wall of the bearing seat, and the ends of the support rods are fitted with collars.

[0008] An airbag is fitted on the outside of the bearing seat at the front end of the support rod, and a leather cup is fitted on the front end of the bearing seat.

[0009] The outer wall of the support is equipped with detection boxes at both ends, and a buzzer is installed at the top of the detection box.

[0010] A sensor is installed on the upper inner wall of the detection box. A lifting float is installed inside the detection box. A contact block is installed at the top of the lifting float directly below the sensor. An air inlet is opened on the outer wall of the detection box.

[0011] Preferably, the detection box is also equipped with a power supply and control circuit, and the buzzer, sensor and control circuit are electrically connected.

[0012] Preferably, slide rails are installed on both inner walls of the detection box, and sliders are installed at both ends of the lifting float, with the sliders installed inside the slide rails.

[0013] Preferably, the outer wall of the support is equipped with an air pump, the output end of the air pump is equipped with an air pipe, and the end of the air pipe is connected to an air bag.

[0014] Preferably, the upper and lower inner walls of the collar are provided with fitting grooves at their front ends, and fitting arc plates are installed in the fitting grooves. The outer wall of the collar is provided with a screw hole at the fitting groove, and a bolt body is screwed into the screw hole. A circular groove is provided at the bottom end of the bolt body, and a bolt rod is vertically installed in the circular groove. The bolt rod is screwed into the screw hole. A shaft seat is installed on the outer wall of the fitting arc plate, and the end of the bolt rod is disposed in the shaft seat.

[0015] Preferably, a retaining ring is installed on the upper outer end of the bolt rod, and an annular pressure plate, a spring, and an annular rubber sheet are fitted on the circumferential surface of the bolt rod.

[0016] Preferably, an extrusion block is installed at the upper edge of the annular rubber sheet, and the outer wall of the bolt body is provided with an arc surface, and the surface of the arc surface is provided with anti-slip texture.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the natural gas pipeline repair and sealing device has a simple structure and is easy to operate. By setting electric push rods on both sides of the support platform, the extension of the electric push rods extends the airbag into the gas pipeline. The gas pipeline is sealed by the inflation of the airbag. By setting a collar on the outside of the gas pipeline and setting a gas box inside the collar, the gas can be detected. In the event of a leak, a buzzer alarm will sound immediately, thereby improving safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the detection box of this utility model;

[0020] Figure 3 This is a schematic diagram of part A of the present invention;

[0021] Figure 4 This is a schematic diagram of the bolt body of this utility model.

[0022] In the diagram: 1. Support platform; 2. Electric push rod; 3. Detection box; 4. Leather cup; 5. Airbag; 6. Support rod; 7. Support seat; 8. Collar; 9. Air pipe; 10. Air pump; 12. Air inlet; 13. Slide rail; 14. Lifting float; 15. Slider; 16. Contact block; 17. Sensor; 18. Buzzer; 19. Bolt body; 191. Circular groove; 192. Annular rubber sheet; 193. Bolt rod; 194. Extrusion block; 195. Annular pressure plate; 196. Fixing ring; 197. Spring; 198. Arc surface; 199. Shaft seat; 20. Screw hole; 21. Mounting groove; 22. Mounting arc plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a natural gas pipeline repair and sealing device, including a support platform 1, electric push rods 2 are installed on both the left and right side walls of the support platform 1, and a support seat 7 is installed at the drive end of the electric push rod 2; support rods 6 are installed at both the upper and lower ends of the rear side of the outer wall of the support seat 7, and collars 8 are installed at the ends of the support rods 6; an airbag 5 is installed on the outside of the support seat 7 at the front end of the support rods 6, and a leather cup 4 is installed at the front end of the support seat 7; a detection box 3 is installed on both the left and right ends of the outer wall of the support seat 7, and a buzzer 18 is installed at the top of the detection box 3; a sensor 17 is installed on the upper end of the inner wall of the detection box 3, a lifting float 14 is installed inside the detection box 3, and an electric contact block 19 is installed at the top of the lifting float 14 directly below the sensor 17; and an air inlet 12 is opened on the outer wall of the detection box 3.

[0025] In this technical solution, electric push rods 2 are vertically fixed to the left and right outer walls of the support platform 1. The end of the electric push rod 2 is fixedly installed with a support seat 7. The outside of the support seat 7 is equipped with a collar 8 through two support rods 6. By extending the electric push rod 2, the end cup 4 and air bag 5 are extended out of the gas pipeline for sealing. The support ring 6 is located outside the gas pipeline. The inner wall of the collar 8 is equipped with a detection box 3. The inner wall of the detection box 3 is in contact with the sensor 17 through the contact block 19, thereby triggering an alarm through a buzzer. The sensor 17 is a pressure sensor used to sense touch action. The buzzer is a piezoelectric buzzer. Gas can enter through the air inlet 12. The inside of the detection box 3, located at the air inlet 12, is also equipped with a gas detector and a buzzer a. The gas detector and buzzer a are electrically connected, and an alarm can be triggered when gas enters the air inlet 12. The volume of the buzzer a is different from that of the regular buzzer.

[0026] In some technical solutions, the detection box 3 is also equipped with a power supply and control circuit, and the buzzer 18, sensor 17 and control circuit are electrically connected.

[0027] In this technical solution, the control circuit is a microprocessor (MCU) that mainly processes and judges the signals from the sensor. When the sensor 17 signal reaches or exceeds the set trigger value, it controls the buzzer to sound. The power supply is a battery that powers the system.

[0028] In some technical solutions, slide rails 13 are installed on both inner walls of the detection box 3, and sliders 15 are installed at both ends of the lifting float 14. The sliders 15 are installed inside the slide rails 13.

[0029] In this technical solution, the slider 15 can move up and down within the slide rail 13 to assist the lifting float 14 in moving up and down.

[0030] In some technical solutions, the outer wall of the support 1 is equipped with an air pump 10, the output end of the air pump 10 is equipped with an air pipe 9, and the end of the air pipe 9 is connected to an airbag 5.

[0031] In this technical solution, air can be pumped into the airbag 5 by the air pump 10.

[0032] In some technical solutions, the upper and lower inner walls of the collar 8 are provided with a mounting groove 21 at their front ends. A mounting arc plate 22 is installed in the mounting groove 21. A screw hole 20 is provided on the outer wall of the collar 8 at the mounting groove 21. A bolt body 19 is screwed into the screw hole 20. A circular groove 191 is provided at the bottom end of the bolt body 19. A bolt rod 193 is vertically installed in the circular groove 191. The bolt rod 193 is screwed into the screw hole 20. A bearing seat 199 is installed on the outer wall of the mounting arc plate 22. The end of the bolt rod 193 is located in the bearing seat 199.

[0033] In this technical solution, when the collar 8 is placed outside the gas pipeline, the threaded engagement between the bolt rod 193 in the bolt body 19 and the screw hole 20 pushes the embedded arc plate 22 downward, pressing the embedded arc plate 22 against the outside of the gas pipeline and at the airbag support, thereby protecting the inner and outer walls of the gas pipeline.

[0034] In some technical solutions, a retaining ring 196 is installed on the upper outer end of the bolt rod 193, and an annular pressure plate 195, a spring 197 and an annular rubber sheet 192 are fitted on the circumferential surface of the bolt rod 193.

[0035] In this technical solution, the annular pressure plate 195 is located above the fixed ring 196, the spring 197 is located above the annular pressure plate 195, and the annular rubber sheet 192 is located below the fixed ring 196.

[0036] In some technical solutions, an extrusion block 194 is installed at the upper edge of the annular rubber sheet 192, and an arc surface 198 is provided on the outer wall of the bolt body 19, and the surface of the arc surface 198 is provided with anti-slip texture.

[0037] In this technical solution, the annular pressure plate 195 is pressed downward by the spring 197, and the extrusion block 194 is pressed downward by the annular pressure plate 195, so that the extrusion block 194 further extrudes the edge of the annular rubber sheet 192, thereby improving the sealing effect. The setting of the arc surface 198 facilitates the driving of the bolt body 19.

[0038] Working process and principle: In use, first, place the support platform 1 at the gas pipeline to be blocked, and place the end of the electric push rod 2 at the gas pipeline. Then, control the electric push rod 2 to extend, inserting the cup 4 and the air bag 5 into the gas pipeline. At this time, the collar 8 is located outside the gas pipeline. Then, inflate the air bag 5 with the air pump 10 until the outer wall of the air bag 5 is in tight contact with the inner wall of the gas pipeline, thereby blocking it. Then, rotate the bolt body 19 downward to make the embedded arc plate 22 contact the outer wall of the gas pipeline, thereby providing pressure protection. When the blocking operation is wrong and gas leaks, when gas briefly enters the detection box 3 through the air inlet 12, it is detected by the first gas detector, and the buzzer a alarms. When a large amount of gas enters the detection box 3, the lifting float 14 is pushed upward, the contact block 16 contacts the sensor 17, and the buzzer 17 will emit a louder sound to alarm.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A natural gas pipeline maintenance and plugging device, comprising a support platform (1), characterized in that, The left and right side walls of the support platform (1) are equipped with electric push rods (2), and the drive end of the electric push rod (2) is equipped with a support seat (7). Support rods (6) are installed at both the upper and lower ends of the rear side of the outer wall of the bearing seat (7), and the ends of the support rods (6) are fitted with collars (8); An airbag (5) is fitted on the outside of the bearing seat (7) at the front end of the support rod (6), and a leather cup (4) is fitted on the front end of the bearing seat (7). The outer wall of the bearing seat (7) is equipped with a detection box (3) at both the left and right ends, and a buzzer (18) is installed at the top of the detection box (3); A sensor (17) is installed on the upper inner wall of the detection box (3). A lifting float (14) is installed inside the detection box (3). A contact block (16) is installed at the top of the lifting float (14) directly below the sensor (17). An air inlet (12) is opened on the outer wall of the detection box (3).

2. The natural gas pipeline maintenance and plugging device according to claim 1, characterized in that: The detection box (3) is also equipped with a power supply and control circuit, and the buzzer (18) and sensor (17) are electrically connected to the control circuit.

3. A natural gas pipeline maintenance and plugging device according to claim 1, characterized in that: The inner walls of both sides of the detection box (3) are equipped with slide rails (13), and the two ends of the lifting float (14) are equipped with sliders (15), which are installed inside the slide rails (13).

4. A natural gas pipeline maintenance and plugging device according to claim 1, characterized in that: The outer wall of the support (7) is equipped with an air pump (10), and the output end of the air pump (10) is equipped with an air pipe (9), the end of the air pipe (9) is connected to an air bag (5).

5. A natural gas pipeline maintenance and plugging device according to claim 1, characterized in that, The upper and lower inner walls of the collar (8) are provided with a mounting groove (21) at the front end. A mounting arc plate (22) is installed in the mounting groove (21). A screw hole (20) is provided on the outer wall of the collar (8) at the mounting groove (21). A bolt body (19) is screwed into the screw hole (20). A circular groove (191) is provided at the bottom end of the bolt body (19). A bolt rod (193) is vertically installed in the circular groove (191). The bolt rod (193) is screwed into the screw hole (20). A shaft seat (199) is installed on the outer wall of the mounting arc plate (22). The end of the bolt rod (193) is located in the shaft seat (199).

6. A natural gas pipeline maintenance and plugging device according to claim 5, characterized in that: A retaining ring (196) is installed on the upper outer end of the bolt rod (193), and an annular pressure plate (195), a spring (197) and an annular rubber sheet (192) are fitted on the circumferential surface of the bolt rod (193).

7. A natural gas pipeline maintenance and plugging device according to claim 6, characterized in that: An extrusion block (194) is installed at the upper edge of the annular rubber sheet (192), and the outer wall of the bolt body (19) is provided with an arc surface (198), and the surface of the arc surface (198) is provided with anti-slip texture.

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