Quick mounting and dismounting device for temporary plugging of large-diameter pipeline

Abstract

The invention relates to the technical field of pipeline temporary plugging devices, and discloses a quick mounting and dismounting device for temporary plugging of a large-diameter pipeline, which comprises a concrete structure pool wall and a central shaft rod, and a supporting and positioning mechanism is arranged on the concrete structure pool wall. A waterproof sleeve is fixedly connected to the inner wall of the concrete structure pool wall body, a shaft rod sleeve is slidably connected to the center shaft rod, and a plurality of first protruding blocks are fixedly connected to the outer wall of the shaft rod sleeve. The supporting and positioning mechanism ensures that the device is stably placed in the pipeline, water flow impact and pipeline vibration are avoided, displacement and shaking are avoided, the installation integrating degree of all parts is higher, the installation quality and efficiency are improved, repeated adjustment caused by installation errors is reduced, meanwhile, internal stress distribution of the device can be optimized, and the service life of the device is prolonged. Abrasion of parts caused by uneven stress is reduced, the overall service life of the device is prolonged, the applicability of the device in a complex pipeline environment is enhanced, and a foundation is built for smooth implementation of plugging operation.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline temporary plugging devices, and particularly to a quick installation and disassembly device for temporarily plugging large-diameter pipelines. Background Technique

[0002] In operations such as pipeline construction, maintenance, and repair, it is often necessary to temporarily plug large-diameter pipelines. As a key auxiliary device, the performance of the large-diameter pipeline temporary plugging device directly affects the safety and efficiency of the operation. Precise and stable plugging can not only ensure the smooth progress of the construction but also avoid adverse effects on the surrounding environment, playing an indispensable role in various pipeline engineering scenarios.

[0003] Some existing pipeline temporary plugging devices are not convenient for achieving stable support and precise positioning inside the pipeline during use. In the face of complex pipeline working conditions, such as water flow impact and pipeline self-vibration, the device is prone to displacement and shaking. This not only results in poor fitting of each component, increases installation errors and the number of repeated adjustments, but also causes uneven internal stress of the device, accelerating component wear. Summary of the Invention

[0004] The purpose of the present invention is to provide a quick installation and disassembly device for temporarily plugging large-diameter pipelines to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is a quick installation and disassembly device for temporarily plugging large-diameter pipelines, including a concrete structure pool wall and a central shaft rod. A support and positioning mechanism, a sealing and water-stop mechanism, and a buffer mechanism are provided on the concrete structure pool wall. A waterproof sleeve is fixedly connected to the inner wall of the concrete structure pool wall. A shaft rod sleeve is slidably connected to the central shaft rod. A plurality of first bumps are fixedly connected to the outer wall of the shaft rod sleeve. A plurality of movable push rods are hinged to each of the plurality of first bumps. A plurality of inner support drag rods are slidably connected to the inner wall of the waterproof sleeve. Two second bumps are fixedly connected to the side of each of the plurality of inner support drag rods away from the inner wall of the waterproof sleeve. Each of the plurality of second bumps is hinged to the corresponding movable push rod. The sealing and water-stop mechanism includes a sealing bottom plate slidably connected to the right side of the concrete structure pool wall. The buffer mechanism includes a buffer box fixedly connected to the right side of the sealing bottom plate. Furthermore, a self-locking pipe clamp is slidably connected to the central shaft rod, and a pulley is rotatably connected between the corresponding two second bumps.

[0006] Furthermore, a plurality of lifting lugs are provided on the sealing bottom plate. Two mounting blocks are fixedly connected to the left side of the sealing bottom plate. A water-swelling water-stop strip is fixedly connected between the two mounting blocks.

[0007] Furthermore, an internally threaded sleeve is fixedly connected to the left side of the sealing bottom plate, a threaded rod is fixedly connected to the right end of the central shaft, and the right end of the threaded rod extends into the interior of the internally threaded sleeve and is threadedly connected to the internally threaded sleeve.

[0008] Furthermore, a fastening handle wheel is fixedly connected to the central shaft, a self-hanging reinforcing support rod is slidably connected to the central shaft, and a T-shaped block is fixedly connected to the bottom of the self-hanging reinforcing support rod.

[0009] Furthermore, a plurality of guide rods are fixedly connected to the right side of the buffer box, a plurality of guide rods are slidably connected to buffer plates, and a plurality of holes are formed on the buffer plates.

[0010] Furthermore, the inner wall of the buffer box is slidably connected to two movable plates, and two springs are fixedly connected between the two movable plates and the inner wall of the buffer box.

[0011] Furthermore, the front and rear sides of the two movable plates are fixedly connected with T-shaped sliding blocks, and the front inner wall and the rear inner wall of the buffer box are both provided with T-shaped sliding grooves.

[0012] Furthermore, a plurality of the T-shaped sliding blocks extend into the corresponding T-shaped sliding grooves and are slidably connected to the corresponding T-shaped sliding grooves, and a connecting plate is hinged between the two moving plates and the buffer plate.

[0013] Furthermore, a damper is fixedly connected between the inner bottom wall of the buffer box and the buffer plate, a second spring is wound around the damper, a bottom end of the second spring is fixedly connected to the inner bottom wall of the buffer box, and a top end of the second spring is fixedly connected to the buffer plate.

[0014] The present invention has the following beneficial effects: (1) The present invention uses a support and positioning mechanism to move the shaft sleeve. When the shaft sleeve moves, it drives the movable push rod to move. When the movable push rod moves, it drives the inner support drag rod to move. When the inner support drag rod moves, it drives the pulley to move. The support and positioning mechanism ensures that the device is firmly placed in the pipeline without fear of water flow impact and pipeline vibration, avoiding displacement and shaking, making the installation fit of various components higher, improving installation quality and efficiency, and reducing repeated adjustments caused by installation errors. At the same time, it can optimize the internal force distribution of the device, reduce the wear of components caused by uneven force, extend the overall service life of the device, enhance the applicability in complex pipeline environments, and lay a solid foundation for the smooth implementation of plugging operations.

[0015] (2) The present invention seals the gap between the sealing bottom plate, the waterproof sleeve and the concrete structure pool wall through a sealing water-stopping mechanism and a water-swelling water-stopping strip. The central shaft is rotated to drive the threaded rod to rotate. The threaded rod, in cooperation with the internal threaded sleeve, makes the sealing effect of the sealing bottom plate stronger. The waterproof sleeve is sealed and water-stopped by the sealing water-stopping mechanism, thereby effectively preventing water leakage and preventing the liquid in the pipeline from leaking out accidentally. A series of thorny engineering problems such as soil erosion, foundation settlement and environmental pollution caused by water leakage are avoided from the root. At the same time, the sealing degree can be flexibly adjusted according to the actual conditions of the pipeline, such as the size of the pipe diameter and the difference in the pipe material. In the face of different water pressures and water flow conditions, whether it is a static water flow environment with constant pressure or a dynamic water flow environment with turbulent water flow and large pressure fluctuations, it can quickly adapt to meet the diverse pipe plugging needs.

[0016] (3) The present invention uses a buffer mechanism. When the buffer plate is impacted and moves, the buffer plate will drive the connecting plate to move. When the connecting plate moves, it will drive the moving plate to move. When the moving plate moves, it will drive the T-shaped slider to slide in the T-shaped slide groove. When the moving plate moves, it will also drive the spring 1 to contract. When the buffer plate moves, it will also drive the damper and spring 2 to contract. The buffer mechanism greatly reduces the impact force of water flow on the device, protects the internal structure and key components, reduces the risk of damage caused by impact, extends the service life of the device, reduces maintenance and replacement costs, enables the device to adapt to water flow environments with different flow rates and flow rates, and broadens the scope of application. At the same time, the buffering process reduces the vibration and shaking of the device, improves its stability under strong water flow impact, and ensures that the plugging operation can be carried out safely and reliably under harsh water flow conditions.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 It is a front cross-sectional structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the central shaft structure of the present invention; Figure 5 This is a schematic diagram of the shaft sleeve structure of the present invention; Figure 6 Schematic diagram of the internal support towing rod structure of the present invention; Figure 7 Schematic diagram of the sealed bottom plate structure of the present invention; Figure 8 Schematic diagram of the buffer box structure of the present invention; Figure 9 Schematic diagram of the moving plate structure of the present invention; In the drawings, the list of components represented by each reference numeral is as follows: In the figure: 1, concrete structure pool wall; 2, support positioning mechanism; 3, sealed water stop mechanism; 4, buffer mechanism; 21, waterproof sleeve; 22, shaft rod sleeve; 23, bump one; 24, movable push rod; 25, internal support towing rod; 26, bump two; 27, self-locking pipe clamp; 28, pulley; 29, central shaft rod; 31, sealed bottom plate; 32, lifting lug; 33, mounting block; 34, water swelling water stop strip; 35, threaded rod; 36, internal thread sleeve; 37, fastening handle wheel; 38, self-hanging reinforcing strut; 39, T-shaped block; 41, buffer box; 42, guide rod; 43, buffer plate; 44, hole; 45, moving plate; 46, spring one; 47, T-shaped slider; 48, T-shaped chute; 49, connecting plate; 410, damper; 411, spring two; Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-9As shown, the present invention is a quick installation and disassembly device for temporary plugging of large-diameter pipelines, including a concrete structure water pool wall 1 and a central shaft 29, the concrete structure water pool wall 1 is provided with a supporting positioning mechanism 2, a sealing water stop mechanism 3 and a buffer mechanism 4, the inner wall of the concrete structure water pool wall 1 is fixedly connected with a waterproof sleeve 21, the central shaft 29 is slidably connected with a shaft sleeve 22, the outer wall of the shaft sleeve 22 is fixedly connected with a plurality of protrusions 23, and a plurality of protrusions 23 are hinged with a plurality of movable push rods 24, the inner wall of the waterproof sleeve 21 is slidably connected with a plurality of inner support drag rods 25, and a plurality of inner support drag rods 25 are fixedly connected with two protrusions 26 on one side away from the inner wall of the waterproof sleeve 21, and a plurality of protrusions 26 are hinged with corresponding movable push rods 24 Next, the sealing and water-stopping mechanism 3 includes a sealing bottom plate 31 slidably connected to the right side of the concrete structure pool wall 1, and the buffer mechanism 4 includes a buffer box 41 fixedly connected to the right side of the sealing bottom plate 31. A self-locking pipe clamp 27 is slidably connected to the central axis 29, and a pulley 28 is rotatably connected between the two corresponding protrusions 26. The supporting and positioning mechanism 2 ensures that the device is firmly placed in the pipeline without fear of water flow impact and pipeline vibration, avoiding displacement and shaking, making the installation of various components more compatible, improving installation quality and efficiency, and reducing repeated adjustments caused by installation errors. At the same time, it can optimize the internal force distribution of the device, reduce the wear of components caused by uneven force, extend the overall service life of the device, enhance its applicability in complex pipeline environments, and lay a solid foundation for the smooth implementation of plugging operations.

[0022] A plurality of lifting ears 32 are provided on the sealing bottom plate 31, two mounting blocks 33 are fixedly connected to the left side of the sealing bottom plate 31, a water-expanding water stop strip 34 is fixedly connected between the two mounting blocks 33, an internal threaded sleeve 36 is fixedly connected to the left side of the sealing bottom plate 31, a threaded rod 35 is fixedly connected to the right end of the central shaft 29, the right end of the threaded rod 35 extends to the inside of the internal threaded sleeve 36 and is threadedly connected to the internal threaded sleeve 36, a tightening handle wheel 37 is fixedly connected to the central shaft 29, a self-hanging reinforcing support rod 38 is slidably connected to the central shaft 29, and the bottom of the self-hanging reinforcing support rod 38 is fixedly connected to It is connected with a T-shaped block 39, and the waterproof casing 21 is sealed and waterproofed by the sealing and waterproofing mechanism 3, so as to effectively prevent water leakage, prevent the liquid in the pipeline from leaking out accidentally, and avoid a series of thorny engineering problems such as soil erosion, foundation settlement, and environmental pollution caused by leakage from the root. At the same time, the sealing degree can be flexibly adjusted according to the actual situation of the pipeline, such as the size of the pipe diameter and the difference in the pipe material. In the face of different water pressures and water flow conditions, whether it is a static water flow environment with constant pressure or a dynamic water flow environment with turbulent water flow and large pressure fluctuations, it can quickly adapt to meet the diverse pipe sealing needs.

[0023] On the right side of the buffer box 41, a number of guide rods 42 are fixedly connected. A buffer plate 43 is slidably connected to the number of guide rods 42. A number of holes 44 are formed in the buffer plate 43. Two moving plates 45 are slidably connected to the inner wall of the buffer box 41. Two first springs 46 are fixedly connected between the two moving plates 45 and the inner wall of the buffer box 41. T-shaped sliders 47 are fixedly connected to the front side and the rear side of the two moving plates 45. T-shaped chutes 48 are formed in the front inner wall and the rear inner wall of the buffer box 41. A number of T-shaped sliders 47 extend into the corresponding T-shaped chutes 48 and are slidably connected to the corresponding T-shaped chutes 48. Connecting plates 49 are hinged between the two moving plates 45 and the buffer plate 43. A damper 410 is fixedly connected between the inner bottom wall of the buffer box 41 and the buffer plate 43. A second spring 411 is wound around the damper 410. The bottom end of the second spring 411 is fixedly connected to the inner bottom wall of the buffer box 41, and the top end of the second spring 411 is fixedly connected to the buffer plate 43. Through the buffer mechanism 4, the impact force of the water flow on the device is greatly reduced, the internal structure and key components are protected, the damage risk caused by impact is reduced, the service life of the device is prolonged, the maintenance and replacement costs are reduced, the device can adapt to water flow environments with different flow rates and flows, the applicable range is broadened. At the same time, the buffering process reduces the vibration and shaking of the device, improves its stability under strong water flow impact, and ensures that the plugging operation can be carried out safely and reliably under harsh water flow conditions.

[0024] During use, first connect with the lifting lug 32 through the temporary lifting device, so as to place the sealing bottom plate 31 on the right water-facing side of the waterproof sleeve 21. Then connect the central shaft rod 29 with the sealing bottom plate 31 through the cooperation of the threaded rod 35 and the internal thread sleeve 36. Then install the shaft sleeve 22 on the central shaft rod 29. The shaft sleeve 22 can slide on the central shaft rod 29. The first convex block 23 on the outer wall of the shaft sleeve 22 is hinged with the movable push rod 24. Therefore, when the shaft sleeve 22 moves on the central shaft rod 29, it will drive the movable push rod 24 to move. The second convex block 26 on the inner support drag rod 25 is hinged with the movable push rod 24. As the shaft sleeve 22 moves, the movable push rod 24 pushes the inner support drag rod 25 to expand outwards and closely fits with the inner wall of the waterproof sleeve 21, so as to realize the radial positioning of the device in the pipeline. At this time, the central shaft rod 29 is coaxial with the waterproof sleeve 21, thereby preventing the device from displacing and shaking in the pipeline, and ensuring that the entire plugging device can remain stable under complex working conditions such as water flow impact and pipeline vibration. Slide the self-locking pipe clamp 27 on the central shaft rod 29. When the positioning of the inner support drag rod 25 is completed, slide the self-locking pipe clamp 27 to a suitable position and lock it to further fix the shaft sleeve 22 and related structures to prevent displacement during use. The pulley 28 rotatably connected between the second convex blocks 26 can reduce the friction force between the inner support drag rod 25 and components such as the sealing bottom plate 31 during the expansion or contraction process of the device, making the operation smoother.

[0025] After placing the sealed bottom plate 31 on the right side of the waterproof sleeve 21, the water swelling waterstop strip 34 installed between the two mounting blocks 33 is closely attached to the contact parts of the concrete structure pool wall 1 and the waterproof sleeve 21. Once water comes into contact with the water swelling waterstop strip 34, the waterstop strip will quickly expand, fill the possible tiny gaps, form a tight waterproof barrier, and effectively prevent water leakage. Rotate the fastening handle wheel 37. When the fastening handle wheel 37 rotates, it will drive the central shaft rod 29 to rotate. When the central shaft rod 29 rotates, it will drive the threaded rod 35 to rotate inside the internal thread sleeve 36. The cooperation of the internal thread sleeve 36 and the threaded rod 35 can finely adjust the position of the sealed bottom plate 31 according to actual needs, so that it can better fit the pipe port, enhance the sealing effect. At the same time, the self-hanging reinforcing strut 38 presses against the back water surface of the sealed bottom plate 31 to further fix the sealed bottom plate 31.

[0026] When the water flow impacts the buffer plate 43, the buffer plate 43 moves towards the buffer box 41 under the force. Since the buffer plate 43 and the moving plate 45 are hinged through the connecting plate 49, the movement of the buffer plate 43 will drive the connecting plate 49, and then pull the moving plate 45. A first spring 46 is fixedly connected between the moving plate 45 and the inner wall of the buffer box 41. When the moving plate 45 is pulled, the first spring 46 is stretched or compressed, so that the first spring 46 has elasticity and can absorb part of the energy brought by the water flow impact during the deformation process, playing a preliminary buffering role. When the moving plate 45 moves, it drives the T-shaped slider 47 to move in the T-shaped sliding groove 48. The movement track of the moving plate 45 is restricted by the T-shaped slider 47 and the T-shaped sliding groove 48, preventing it from shifting, shaking or twisting when being impacted by the water flow, ensuring that the first spring 46 can play a buffering role in the correct direction. At the same time, when the buffer plate 43 moves downward under the impact of the water flow, the second spring 411 is compressed and stores elastic potential energy; when the water flow impact force weakens, the second spring 411 releases the elastic potential energy to help the buffer plate 43 reset. The damper 410 and the second spring 411 cooperate with each other. On the one hand, the damper 410 consumes energy, and on the other hand, the elasticity of the second spring 411 is used for buffering and resetting, further enhancing the buffering effect of the buffering mechanism on the water flow impact force and better protecting the plugging device from being damaged by excessive impact.

[0027] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A quick installation and disassembly device for temporary plugging of large diameter pipelines, characterized in that: It comprises a concrete structure water pool wall (1) and a central shaft (29), wherein the concrete structure water pool wall (1) is provided with a supporting positioning mechanism (2), a sealing and water-stopping mechanism (3) and a buffer mechanism (4); The inner wall of the concrete structure pool wall (1) is fixedly connected to a waterproof sleeve (21), the central shaft (29) is slidably connected to a shaft sleeve (22), the outer wall of the shaft sleeve (22) is fixedly connected to a plurality of protrusions (23), and a plurality of movable push rods (24) are hingedly connected to the protrusions (23), the inner wall of the waterproof sleeve (21) is slidably connected to a plurality of inner support rods (25), a side of a plurality of inner support rods (25) away from the inner wall of the waterproof sleeve (21) is fixedly connected to two protrusions (26), and a plurality of protrusions (26) are hingedly connected to corresponding movable push rods (24), the sealing and water-stopping mechanism (3) comprises a sealing bottom plate (31) slidably connected to the right side of the concrete structure pool wall (1), and the buffer mechanism (4) comprises a buffer box (41) fixedly connected to the right side of the sealing bottom plate (31).

2. A quick installation and removal device for temporary plugging of large diameter pipelines according to claim 1, characterized in that: A self-locking pipe clamp (27) is slidably connected to the central shaft (29), and a pulley (28) is rotatably connected between the two corresponding protrusions (26).

3. A quick installation and removal device for temporary plugging of large diameter pipelines according to claim 2, characterized in that: The sealing bottom plate (31) is provided with a plurality of lifting ears (32), the left side of the sealing bottom plate (31) is fixedly connected to two mounting blocks (33), and a water-swellable water stop strip (34) is fixedly connected between the two mounting blocks (33).

4. A quick installation and removal device for temporary plugging of large diameter pipelines according to claim 3, characterized in that: An internally threaded sleeve (36) is fixedly connected to the left side of the sealing bottom plate (31), a threaded rod (35) is fixedly connected to the right end of the central shaft rod (29), and the right end of the threaded rod (35) extends into the interior of the internally threaded sleeve (36) and is threadedly connected to the internally threaded sleeve (36).

5. A quick installation and removal device for temporary plugging of large diameter pipelines according to claim 4, characterized in that: A fastening handle wheel (37) is fixedly connected to the central shaft (29), a self-hanging reinforcing support rod (38) is slidably connected to the central shaft (29), and a T-shaped block (39) is fixedly connected to the bottom of the self-hanging reinforcing support rod (38).

6. A quick installation and removal device for temporary plugging of large diameter pipelines according to claim 5, characterized in that: A plurality of guide rods (42) are fixedly connected to the right side of the buffer box (41), a plurality of guide rods (42) are slidably connected to a buffer plate (43), and a plurality of holes (44) are formed on the buffer plate (43).

7. A quick installation and removal device for temporary plugging of large diameter pipelines according to claim 6, characterized in that: Two movable plates (45) are slidably connected to the inner wall of the buffer box (41), and two springs 1 (46) are fixedly connected between the two movable plates (45) and the inner wall of the buffer box (41).

8. A quick installation and removal device for temporary plugging of large diameter pipelines according to claim 7, characterized in that: The front and rear sides of the two movable plates (45) are fixedly connected with T-shaped sliding blocks (47), and the front inner wall and rear inner wall of the buffer box (41) are both provided with T-shaped sliding grooves (48).

9. A quick installation and removal device for temporary plugging of large diameter pipelines according to claim 8, characterized in that: A plurality of the T-shaped sliding blocks (47) extend into the interior of the corresponding T-shaped sliding grooves (48) and are slidably connected to the corresponding T-shaped sliding grooves (48), and a connecting plate (49) is hingedly connected between the two moving plates (45) and the buffer plate (43).

10. A quick installation and removal device for temporary plugging of large diameter pipelines according to claim 9, characterized in that: A damper (410) is fixedly connected between the inner bottom wall of the buffer box (41) and the buffer plate (43), a second spring (411) is wound around the damper (410), a bottom end of the second spring (411) is fixedly connected to the inner bottom wall of the buffer box (41), and a top end of the second spring (411) is fixedly connected to the buffer plate (43).

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