A pipe surface hole sealing device

Abstract

This invention discloses a device for sealing pinholes in pipelines, relating to the field of pipeline sealing technology. It includes a lower semi-circular clamping plate with a fixed shaft. Clamping arc blocks, opposite to the power pipeline, are installed on both the lower and upper semi-circular clamping plates. Radial sliders are slidably mounted on both the lower and upper semi-circular clamping plates. An extension plate II, corresponding to extension plate I, is installed on an angle locking assembly. A sealing plate for sealing pinholes in the power pipeline is fixed on a radial adjustment assembly. This invention connects and sleeves the upper and lower semi-circular clamping plates onto the power pipeline. The clamping and pushing assembly drives multiple clamping arc blocks to fix and limit the power pipeline. Simultaneously, the upper semi-circular clamping plate can slide circumferentially relative to the clamping arc blocks, allowing the sealing plate and sealing assembly to stably and quickly connect with the pinhole, greatly improving the efficiency and accuracy of pinhole sealing.

Description

Technical Field

[0001] This invention relates to the field of pipeline leak sealing technology, specifically a pipeline planar pinhole sealing device. Background Technology

[0002] Power pipelines are piping systems used to transport power media such as steam, compressed air, and nitrogen. They play a vital role in industrial production, providing power to various equipment. They typically have high pressure and temperature requirements, therefore, their design, installation, and maintenance must strictly adhere to relevant standards and specifications. During use, power pipelines require regular inspection and maintenance to ensure their safe and reliable operation.

[0003] In actual production processes, power pipelines often experience sand hole leaks due to years of erosion, severely affecting their normal operation. If the entire system is shut down for pipe repair, it disrupts normal production. Therefore, a leak-sealing device is needed to seal the pipeline. However, existing leak-sealing devices cannot maintain a stable position on the pipeline, and the sealing process is prone to displacement, affecting the sealing effect. Furthermore, the sealing process cannot be flexibly and accurately adjusted according to the location of the leak, significantly limiting the efficiency and sealing effect of the sealing operation. Therefore, this paper proposes a pipe planar sand hole sealing device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a device for sealing pinholes in a pipe to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A device for sealing pinholes in a pipe includes a lower semi-circular clamping plate, a fixed shaft fixed to the lower semi-circular clamping plate, and an upper semi-circular clamping plate rotatably mounted on the fixed shaft, which is connected to the lower semi-circular clamping plate. A power pipe passes between the lower and upper semi-circular clamping plates. Guide frames are fixed to both the lower and upper semi-circular clamping plates, and transmission arc plates are slidably mounted on the guide frames. Clamping arc blocks opposite to the power pipe are mounted on both the lower and upper semi-circular clamping plates. Radial sliders are slidably mounted on both the lower and upper semi-circular clamping plates, and the radial sliders are connected to a mechanism for driving the clamping arc blocks to move toward the power pipe. The clamping and pushing assembly has a mating plate installed at the end of the upper and lower semicircular clamping plates away from the fixed axis. A driving assembly for driving the transmission arc plate to slide is installed on the mating plate. An extension plate I is fixed on the upper semicircular clamping plate. An angle locking assembly is connected between the upper and lower semicircular clamping plates. An extension plate II corresponding to extension plate I is installed on the angle locking assembly. A radial adjustment assembly is installed on the upper semicircular clamping plate. A sealing plate for sealing the sand hole on the power pipeline is fixed on the radial adjustment assembly. A sealing assembly extending into the sand hole is installed on the radial adjustment assembly.

[0007] As an improvement of the present invention: the clamping and pushing assembly includes a locking wedge block fixed on the transmission arc plate, the wedge surface of the locking wedge block abutting against the radial slider, an extension block is fixed to the side wall of the radial slider, and a radial spring is fixed between the extension block and the upper semi-circular clamping plate.

[0008] As an improvement of the present invention: a guide slider is fixed at one end of the radial slider away from the locking wedge, the guide slider is slidably embedded in the clamping arc block, and a return spring is fixedly connected between the clamping arc block and the guide slider.

[0009] As an improvement of the present invention: the driving assembly includes a pusher wedge block slidably mounted on the docking plate, the pusher wedge block abutting against the end of the transmission arc plate, and a sliding assembly for driving the pusher wedge block to slide relative to the docking plate is mounted on the docking plate.

[0010] As an improvement of the present invention: the sliding assembly includes a vertical plate fixed on the docking plate, a threaded rod that is threadedly connected to the push wedge is rotatably mounted on the vertical plate, and gear I and gear II are coaxially fixed on the two threaded rods respectively, gear I and gear II are meshed, and a hand crank II is fixed to the end of the threaded rod.

[0011] As an improvement of the present invention: the angle locking assembly includes a connecting strip plate slidably mounted on the upper semi-circular clamping plate, the extension plate II is fixed on the connecting strip plate, a push spring is fixed between the connecting strip plate and the upper semi-circular clamping plate, a snap-fit ​​wedge tooth is fixed on the connecting strip plate, and a plurality of anti-return wedge teeth that snap and match the snap-fit ​​wedge teeth are fixed on the lower semi-circular clamping plate, the anti-return wedge teeth being distributed around the axis of the fixed shaft.

[0012] As an improvement of the present invention: the radial adjustment assembly includes a lifting frame that is radially slidably mounted on the upper semi-circular clamping plate, a threaded post is threadedly connected to the lifting frame, one end of the threaded post is rotatably mounted on the upper semi-circular clamping plate, and a hand crank I is fixed to the other end of the threaded post. The sealing plate is fixed to the side of the lifting frame facing the power pipeline.

[0013] As an improvement of the present invention: the sealing assembly further includes a sliding column that is slidably connected to the sealing plate, the sliding column slides through the lifting frame, one end of the sliding column is fixed with a top plate, a spring ring is fixed between the top plate and the lifting frame, and the other end of the sliding column is fixed with a sealing cone block opposite to the sand hole, and a locking assembly for locking the position of the sliding column is installed on the sealing cone block.

[0014] As an improvement of the present invention: the locking assembly includes a check trapezoidal block slidably mounted on the side wall of the extension column, a connecting spring is fixed between the check trapezoidal block and the extension column, and the bottom of the check trapezoidal block has a slope opposite to the power pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention uses an upper and lower semi-circular clamping plate that are connected and fitted onto a power pipeline. With the help of a clamping and pushing component, multiple clamping arc blocks are driven to fix and limit the power pipeline. At the same time, the upper semi-circular clamping plate can slide relative to the clamping arc blocks in the circumferential direction, so that the sealing plate and sealing component can stably and quickly connect with the sand hole, greatly improving the efficiency and accuracy of sand hole sealing.

[0017] 2. In this invention, the sealing cone first extends into the sand hole, and the position of the sealing cone is locked by the locking component to ensure that the sealing cone tightly fills the sand hole. Then, the sealing plate moves down and fits against the outer wall of the power pipeline for secondary sealing, which significantly improves the sealing effect of the sand hole. Attached Figure Description

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 For the present invention Figure 1 Enlarged diagram of section A in the middle;

[0020] Figure 3 For the present invention Figure 1 A diagram from a particular perspective;

[0021] Figure 4 This is a partial structural diagram of the present invention;

[0022] Figure 5 This is a schematic diagram showing the connection of the connecting strip, extension plate II, snap-fit ​​wedge teeth, and push spring in this invention;

[0023] Figure 6 This is a schematic diagram showing the connection of components such as the transmission arc plate, locking wedge block, radial slider, and clamping arc block in this invention;

[0024] Figure 7 This is a schematic diagram showing the connection of components such as the radial slider, guide slider, return spring, and clamping arc block in this invention;

[0025] Figure 8 This is a schematic diagram showing the connection of the power pipeline, radial adjustment assembly, and sealing assembly in this invention;

[0026] Figure 9 This is a schematic diagram showing the connection of the sliding column, sealing cone, and locking assembly in this invention.

[0027] In the diagram: 1-Power pipe, 2-Threaded rod, 3-Upper semi-circular clamping plate, 4-Lower semi-circular clamping plate, 5-Connecting plate, 6-Upright plate, 7-Transmission arc plate, 8-Clamping arc block, 9-Sealing plate, 10-Hand crank I, 11-Guide frame, 12-Lifting frame, 13-Threaded column, 14-Radial slider, 15-Gear I, 16-Extension plate I, 17-Extension plate II, 18-Check wedge tooth, 19-Connecting strip, 20-Snap-fit 21-Wedge tooth, 22-Fixed shaft, 23-Push spring, 24-Locking wedge block, 25-Radial spring, 26-Extension block, 27-Guide slider, 28-Reset spring, 29-Top plate, 30-Spring ring, 31-Check trapezoidal block, 32-Sealing cone block, 33-Extension column, 34-Connecting spring, 35-Pit hole, 36-Hand crank II, 37-Gear II, 38-Push wedge block, 39-Slope. Detailed Implementation

[0028] The technical solution of the present invention will be further described in detail below with reference to specific embodiments:

[0029] Example 1

[0030] Please see the appendix Figure 1 - Appendix Figure 9A pipe surface pinhole sealing device includes a lower semi-circular clamping plate 4, a fixed shaft 21 fixed on the lower semi-circular clamping plate 4, an upper semi-circular clamping plate 3 rotatably mounted on the fixed shaft 21 and mating with the lower semi-circular clamping plate 4, a power pipe 1 passing between the lower semi-circular clamping plate 4 and the upper semi-circular clamping plate 3, guide frames 11 fixed on both the lower semi-circular clamping plate 4 and the upper semi-circular clamping plate 3, a transmission arc plate 7 slidably mounted on the guide frame 11, clamping arc blocks 8 opposite to the power pipe 1 mounted on both the lower semi-circular clamping plate 4 and the upper semi-circular clamping plate 3, and radial sliders 14 slidably mounted on both the lower semi-circular clamping plate 4 and the upper semi-circular clamping plate 3, with a drive arc plate 7 connected to the radial slider 14 for driving the clamping arc blocks 8 towards... The clamping and pushing assembly that moves toward the power pipeline 1 has a docking plate 5 installed at the end of the upper semicircular clamping plate 3 and the lower semicircular clamping plate 4 away from the fixed shaft 21. The docking plate 5 is equipped with a driving assembly for driving the transmission arc plate 7 to slide. An extension plate I16 is fixed on the upper semicircular clamping plate 3. An angle locking assembly is connected between the upper semicircular clamping plate 3 and the lower semicircular clamping plate 4. An extension plate II17 corresponding to the extension plate I16 is installed on the angle locking assembly. A radial adjustment assembly is installed on the upper semicircular clamping plate 3. A sealing plate 9 for sealing the sand hole 35 on the power pipeline 1 is fixed on the radial adjustment assembly. A sealing assembly extending into the sand hole 35 is installed on the radial adjustment assembly.

[0031] When sealing the pinhole 35 on the power pipeline 1 using this device, the upper semicircular clamping plate 3 and the lower semicircular clamping plate 4 are placed on the power pipeline 1 to be sealed. Then, the upper semicircular clamping plate 3 and the lower semicircular clamping plate 4 are closed and fixed by the angle locking component, so that the upper semicircular clamping plate 3 and the lower semicircular clamping plate 4 encircle the power pipeline 1.

[0032] Specifically, the angle locking assembly includes a connecting strip 19 slidably mounted on the upper semi-circular clamping plate 3, an extension plate II 17 fixed on the connecting strip 19, a push spring 22 fixed between the connecting strip 19 and the upper semi-circular clamping plate 3, a snap-fit ​​wedge tooth 20 fixed on the connecting strip 19, and a number of anti-return wedge teeth 18 that snap and match the snap-fit ​​wedge teeth 20 fixed on the lower semi-circular clamping plate 4. The anti-return wedge teeth 18 are distributed around the axis of the fixed shaft 21.

[0033] During the rotation of the upper semicircular clamping plate 3 relative to the fixed shaft 21, the engaging wedge 20 rotates with the upper semicircular clamping plate 3 and slides relative to the check wedge 18. Finally, under the elastic pushing action of the push spring 22, the engaging wedge 20 engages between the two check wedges 18, thereby locking the angle of the enclosed upper semicircular clamping plate 3 and lower semicircular clamping plate 4, ensuring the stability of the structure and improving the sealing effect of the subsequent sand hole 35. By adjusting the extension plate II17 to move towards the extension plate I16, the connecting strip 19 can drive the engaging wedge 20 to move out from between the check wedges 18, at which point the upper semicircular clamping plate 3 and lower semicircular clamping plate 4 can be unlocked.

[0034] The clamping and pushing assembly of this device includes a locking wedge 23 fixed on the transmission arc plate 7. The wedge surface of the locking wedge 23 abuts against the radial slider 14. An extension block 25 is fixed to the side wall of the radial slider 14. A radial spring 24 is fixed between the extension block 25 and the upper semi-circular clamping plate 3. A guide slider 26 is fixed to the end of the radial slider 14 away from the locking wedge 23. The guide slider 26 is slidably embedded in the clamping arc block 8. A return spring 27 is fixedly connected between the clamping arc block 8 and the guide slider 26.

[0035] With the help of the set drive component, the transmission arc plate 7 can slide under the guidance of the guide frame 11, so that the transmission arc plate 7 drives the locking wedge block 23 to push the radial slider 14. The radial slider 14 drives the clamping arc block 8 to move towards the power pipeline 1 through the guide slider 26, thereby realizing that multiple clamping arc blocks 8 clamp and limit the power pipeline 1, which greatly improves the sealing stability and sealing operation efficiency of the sealing component for the sand hole 35.

[0036] The guide slider 26 can slide relative to the clamping block 8, which makes it convenient to adjust the upper semicircular clamping plate 3 and the lower semicircular clamping plate 4 relative to the power pipeline 1 after the clamping block 8 is locked to the power pipeline 1. This allows the sealing component to be accurately adjusted to the position opposite to the sand hole 35, greatly improving the sealing accuracy of the sand hole 35.

[0037] In addition, the drive assembly of this device includes a push wedge 38 slidably mounted on the docking plate 5. The push wedge 38 abuts against the end of the transmission arc plate 7. A sliding assembly for driving the push wedge 38 to slide relative to the docking plate 5 is installed on the docking plate 5. The sliding assembly includes a vertical plate 6 fixed on the docking plate 5. A threaded rod 2 that is threadedly connected to the push wedge 38 is rotatably mounted on the vertical plate 6. Gear I15 and gear II37 are coaxially fixed on the two threaded rods 2 respectively. Gear I15 and gear II37 are meshed. A hand crank II36 is fixed to the end of the threaded rod 2.

[0038] When the upper semicircular clamping plate 3 and the lower semicircular clamping plate 4 are closed, the two connecting plates 5 are connected, and the gears I15 and II37 on the two threaded rods 2 are engaged. At this time, by shaking the hand crank II36 to drive one of the threaded rods 2 to rotate, the other threaded rod 2 can be rotated. This allows the two pushing wedges 38 to move towards the transmission arc plate 7 at the same time. Finally, the transmission arc plate 7 slides after being pushed, thereby driving multiple clamping arc blocks 8 to move synchronously and stably clamp the power pipe 1.

[0039] Example 2

[0040] Please see the appendix Figure 1 - Appendix Figure 9 Based on Embodiment 1, the radial adjustment component of this device includes a lifting frame 12 that is radially slidably mounted on the upper semi-circular clamping plate 3. A threaded post 13 is threadedly connected to the lifting frame 12. One end of the threaded post 13 is rotatably mounted on the upper semi-circular clamping plate 3, and a hand crank 110 is fixed to the other end of the threaded post 13. A sealing plate 9 is fixed on the side of the lifting frame 12 facing the power pipeline 1.

[0041] The threaded column 13 is driven to rotate by shaking. At this time, the threaded column 13 drives the lifting frame 12 to slide relative to the upper semi-circular clamping plate 3, thereby enabling the sealing component to extend into the sand hole 35 for sealing operation. Specifically, the sealing component includes a sliding column 30 that is slidably connected to the sealing plate 9. The sliding column 30 slides through the lifting frame 12. One end of the sliding column 30 is fixed with a top plate 28. A spring ring 29 is fixed between the top plate 28 and the lifting frame 12. The other end of the sliding column 30 is fixed with a sealing cone block 32 that is opposite to the sand hole 35. A locking component for locking the position of the sliding column 30 is installed on the sealing cone block 32. The locking component includes a check trapezoidal block 31 that is slidably installed on the side wall of the extension column 33. A connecting spring 34 is fixed between the check trapezoidal block 31 and the extension column 33. The bottom of the check trapezoidal block 31 has a slope 39 that is opposite to the power pipe 1.

[0042] With the above configuration, as the lifting frame 12 moves toward the pinhole 35, the top plate 28, spring ring 29, sliding column 30, and sealing cone 32 move toward the pinhole 35, allowing the sealing cone 32 to enter the pinhole 35 for sealing. Subsequently, the lifting frame 12 continues to move, and the spring ring 29 deforms and elongates, causing the sealing cone 32 to continuously increase its pushing force on the pinhole 35 of the power pipeline 1, further ensuring the sealing effect of the pinhole 35. During this process, the sealing plate 9 moves and abuts against the outer wall of the power pipeline 1, achieving a secondary sealing effect on the power pipeline 1, and significantly improving the leak-stopping effect of the power pipeline 1.

[0043] During the process of the sealing cone 32 and the extension column 33 extending into the power pipeline 1, the slope 39 of the check trapezoidal block 31 pushes against the power pipeline 1 and slides towards the extension column 33. When the check trapezoidal block 31 passes the side wall of the power pipeline 1, under the elastic reset action of the connecting spring 34, the check trapezoidal block 31 resets and abuts against the inner wall of the power pipeline 1, thereby locking the sealing cone 32 onto the power pipeline 1 and ensuring effective sealing and plugging of the sand hole 35.

[0044] In summary, this invention uses an upper semi-circular clamping plate 3 and a lower semi-circular clamping plate 4 that are connected and fitted onto the power pipeline 1. A clamping and pushing assembly drives multiple clamping arc blocks 8 to fix and limit the power pipeline 1. Simultaneously, the upper semi-circular clamping plate 3 can slide circumferentially relative to the clamping arc blocks 8, allowing the sealing plate 9 and sealing assembly to stably and quickly connect with the pinhole 35, greatly improving the sealing efficiency and accuracy of the pinhole 35. In this invention, a sealing cone 32 first extends into the pinhole 35, and a locking assembly locks the position of the sealing cone 32, ensuring that the sealing cone 32 tightly fills the pinhole 35. Then, the sealing plate 9 moves down and adheres to the outer wall of the power pipeline 1 for secondary sealing, significantly improving the leak-stopping effect of the pinhole 35.

[0045] It should be noted 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. 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. The above embodiments only illustrate preferred embodiments of this technical solution, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this invention. It should be pointed out that those skilled in the art can make several modifications, improvements, and substitutions without departing from the concept of this invention, and these all fall within the protection scope of this technical solution. The protection scope of this invention should be determined by the appended claims.

Claims

1. A pipe surface pinhole sealing device, comprising a lower semi-circular clamping plate (4), a fixed shaft (21) fixed on the lower semi-circular clamping plate (4), an upper semi-circular clamping plate (3) rotatably mounted on the fixed shaft (21) and mating with the lower semi-circular clamping plate (4), a power pipe (1) passing between the lower semi-circular clamping plate (4) and the upper semi-circular clamping plate (3), characterized in that, Guide frames (11) are fixed on both the lower semicircular clamping plate (4) and the upper semicircular clamping plate (3). A transmission arc plate (7) is slidably mounted on the guide frame (11). Clamping arc blocks (8) opposite to the power pipeline (1) are installed on both the lower semicircular clamping plate (4) and the upper semicircular clamping plate (3). Radial sliders (14) are slidably mounted on both the lower semicircular clamping plate (4) and the upper semicircular clamping plate (3). A clamping and pushing assembly for driving the clamping arc blocks (8) to move toward the power pipeline (1) is connected to the radial sliders (14). A docking plate (5) is installed on one end of both the upper semicircular clamping plate (3) and the lower semicircular clamping plate (4) away from the fixed shaft (21). A useful... The drive assembly that drives the transmission arc plate (7) to slide includes an extension plate I (16) fixed on the upper semicircular clamping plate (3), an angle locking assembly connecting the upper semicircular clamping plate (3) and the lower semicircular clamping plate (4), an extension plate II (17) corresponding to the extension plate I (16) installed on the angle locking assembly, a radial adjustment assembly installed on the upper semicircular clamping plate (3), a sealing plate (9) fixed on the radial adjustment assembly for sealing the sand hole (35) on the power pipe (1), a sealing assembly extending into the sand hole (35) installed on the radial adjustment assembly, and a clamping and pushing assembly including a locking wedge (23) fixed on the transmission arc plate (7). 3) The wedge surface abuts against the radial slider (14). An extension block (25) is fixed to the side wall of the radial slider (14). A radial spring (24) is fixed between the extension block (25) and the upper semi-circular clamping plate (3). A guide slider (26) is fixed to the end of the radial slider (14) away from the locking wedge (23). The guide slider (26) is slidably embedded in the clamping arc block (8). A return spring (27) is fixedly connected between the clamping arc block (8) and the guide slider (26). The radial adjustment assembly includes a lifting frame (12) that is radially slidably mounted on the upper semi-circular clamping plate (3). A threaded post (13) is threadedly connected to the lifting frame (12). One end of the threaded post (13) is rotatably mounted. The upper semi-circular clamping plate (3) is mounted on the upper semi-circular clamping plate (3). A hand crank I (10) is fixed to the other end of the threaded column (13). The sealing plate (9) is fixed to the side of the lifting frame (12) facing the power pipeline (1). The sealing assembly includes a sliding column (30) that is slidably connected to the sealing plate (9). The sliding column (30) slides through the lifting frame (12). A top plate (28) is fixed to one end of the sliding column (30). A spring ring (29) is fixed between the top plate (28) and the lifting frame (12). A sealing cone (32) opposite to the sand hole (35) is fixed to the other end of the sliding column (30). A locking assembly for locking the position of the sliding column (30) is installed on the sealing cone (32).The locking assembly includes an extension post (33) fixed to the other end of the sealing cone (32) and a check trapezoidal block (31) slidably mounted on the side wall of the extension post (33). A connecting spring (34) is fixed between the check trapezoidal block (31) and the extension post (33). The bottom of the check trapezoidal block (31) has a slope (39) opposite to the power pipe (1).

2. The pipe plane pinhole sealing device according to claim 1, characterized in that, The driving assembly includes a pusher wedge (38) slidably mounted on the docking plate (5), the pusher wedge (38) abutting against the end of the transmission arc plate (7), and a sliding assembly for driving the pusher wedge (38) to slide relative to the docking plate (5) is mounted on the docking plate (5).

3. The pipe plane pinhole sealing device according to claim 2, characterized in that, The sliding assembly includes a vertical plate (6) fixed on the docking plate (5), on which a threaded rod (2) is rotatably mounted and threadedly connected to the push wedge (38). Gear I (15) and gear II (37) are coaxially fixed on the two threaded rods (2), and gear I (15) and gear II (37) are meshed. A hand crank II (36) is fixed to the end of the threaded rod (2).

4. The pipe plane pinhole sealing device according to claim 1, characterized in that, The angle locking assembly includes a connecting strip (19) slidably mounted on the upper semi-circular clamping plate (3), the extension plate II (17) is fixed on the connecting strip (19), a push spring (22) is fixed between the connecting strip (19) and the upper semi-circular clamping plate (3), a snap-fit ​​wedge tooth (20) is fixed on the connecting strip (19), and a plurality of anti-return wedge teeth (18) that snap-fit ​​and adapt to the snap-fit ​​wedge teeth (20) are fixed on the lower semi-circular clamping plate (4), and the anti-return wedge teeth (18) are distributed around the axis of the fixed shaft (21).

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