A pipeline closed water seal plug device

Abstract

The utility model discloses a pipeline closed water plugging device belongs to pipeline plugging equipment technical field is used for carrying out plugging to the pipeline of setting on the concrete pipe base, and this plugging device includes first lifting lugs, apron, second lifting lug and multiple groups of steel wire rope tight line ware, multiple first lifting lugs set up on the concrete pipe base, the apron sets up at one end of the pipeline, and multiple second lifting lugs are arranged in the circumference on the apron, and multiple second lifting lugs correspond with multiple first lifting lugs one to one, and multiple groups of steel wire rope tight line ware are set up between corresponding second lifting lug and first lifting lug respectively, and every group of steel wire rope tight line ware all includes installation shell, and the one side of installation shell is provided with first steel wire rope, and the other end of first steel wire rope is connected with first lifting lug, and the other side of installation shell is provided with second steel wire rope, and the other end of second steel wire rope is connected with corresponding second lifting lug, the utility model discloses the plugging device simple structure can effectively improve test efficiency, can also reduce test cost simultaneously.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipeline sealing equipment, specifically relating to a pipeline water-tight sealing device. Background Technology

[0002] In municipal drainage projects, a water tightness test must be conducted after the installation of storm and sewage pipes. This is a crucial step in verifying the quality of pipe installation and ensuring its sealing and impermeability. The purpose of the test is to verify whether there is any leakage in the pipe system under full water conditions, in order to prevent future problems such as road collapse and environmental pollution caused by leaks.

[0003] The conventional method involves sealing the pipe opening with a 240mm thick temporary brick wall before conducting a water tightness test. Specifically, a solid wall is constructed at the pipe end using standard bricks and cement mortar to achieve the sealing purpose.

[0004] Traditionally, after the brickwork sealing is completed, a cement mortar curing period (usually 24-72 hours) must be allowed before a water tightness test can be conducted. Therefore, traditional sealing methods are labor-intensive and time-consuming. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a pipeline water-sealing device that addresses the shortcomings of the prior art, and has a simple structure, reasonable design, and strong practicality.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a pipe water-sealing device for sealing pipes installed on concrete pipe supports, comprising: Multiple first lifting lugs are installed on the concrete pipe seat, and the multiple first lifting lugs are evenly distributed on both sides of the pipe; A cover plate is installed at one end of the pipe. Multiple second lifting lugs are arranged around the circumference of the cover plate, and the multiple second lifting lugs correspond one-to-one with the multiple first lifting lugs. Multiple sets of wire rope tensioners are respectively set between the corresponding second lifting lug and the first lifting lug. Each set of wire rope tensioners includes a mounting housing. A first wire rope is set on one side of the mounting housing. The end of the first wire rope away from the mounting housing is connected to the first lifting lug. A winding wheel is set on the other side of the mounting housing. A second wire rope is wound on the winding wheel. The end of the second wire rope away from the winding wheel is connected to the corresponding second lifting lug.

[0007] Preferably, mounting grooves are provided on both sides of the mounting housing. A rotating shaft is rotatably installed in the mounting groove on one side, and a winding wheel is installed on the rotating shaft. A first positioning hole for fixing the end of the second wire rope is provided on the winding wheel. A fixing shaft is provided in the mounting groove on the other side, and a fixing wheel is installed on the fixing shaft. A second positioning hole for fixing the end of the first wire rope is provided on the fixing wheel.

[0008] Preferably, a ratchet is also provided on the rotating shaft, and a pawl that meshes with the ratchet is provided on the inner wall of the mounting groove.

[0009] Preferably, one end of the rotating shaft extends out of the mounting groove and is connected to a rotating handle.

[0010] Preferably, the first wire rope passes through the first lifting lug and is then secured by a wire locking device, and the second wire rope passes through the second lifting lug and is then secured by a wire locking device.

[0011] Preferably, an annular rubber ring is provided on the side of the cover plate facing the pipe, and the inner diameter of the annular rubber ring is the same as the outer diameter of the pipe.

[0012] Preferably, a frame is provided on one side of the cover plate away from the pipe.

[0013] Preferably, four first lifting lugs are provided, and the four first lifting lugs are arranged in pairs on both sides of the pipe, and four second lifting lugs are also provided accordingly.

[0014] This utility model has the following advantages compared with the prior art: 1. This utility model discloses a pipe water tightness sealing device. When sealing a pipe, a cover plate is placed at one end of the pipe to be sealed. Then, a first steel wire rope is connected to the corresponding first lifting lug, and a second steel wire rope is connected to the corresponding second lifting lug. After connection, the second steel wire rope is tensioned by rotating the winding wheel. Multiple sets of steel wire rope tensioners connect and tension the corresponding first and second lifting lugs, allowing the cover plate to fit tightly against the end of the pipe and seal it. When using this sealing device for a water tightness test, there is no need to temporarily seal the end of the pipe with bricks. The sealing effect is achieved by tightening the cover plate with multiple sets of steel wire rope tensioners. Therefore, this sealing device has a simple structure and is easy to operate when sealing pipes for a water tightness test, thus effectively improving test efficiency and reducing test costs. 2. This utility model provides a pipe water-sealing device. After rotating the winding wheel to make the second steel wire rope reach a suitable length and tension, the pawl is rotated to engage with the ratchet. At this time, the ratchet can no longer rotate, so the rotating shaft and the winding wheel on it can no longer rotate. At this time, the position of the winding wheel is locked, and the length of the second steel wire rope is also locked. At this time, multiple second steel wire ropes are in a tensioned state, which can make the cover plate fit tightly against the end of the pipe and effectively seal the pipe. 3. This utility model discloses a pipe sealing device, wherein a ring-shaped rubber ring is provided on the side of the cover plate facing the pipe, and the inner diameter of the ring-shaped rubber ring is the same as the outer diameter of the pipe. When the cover plate is tightly fitted to one end of the pipe, the ring-shaped rubber ring precisely wraps around the end of the pipe, thus effectively sealing the pipe.

[0015] 4. This utility model discloses a pipe water-sealing device. A cross skeleton is provided on one side of the cover plate away from the pipe. The skeleton is usually a grid, a star grid or radial reinforcing ribs. The skeleton is like a small "I-beam" and divides the cover plate into many small pieces. Each piece is supported by the skeleton, which greatly enhances the bending stiffness of the cover plate and prevents the cover plate from bending excessively under water pressure.

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the sealing state of a pipeline water-tight sealing device according to the present invention; Figure 2 This is a side view of the sealing state of a pipe water-tight sealing device according to the present invention; Figure 3 This is a schematic diagram of the steel wire rope tensioner on a pipeline water-sealing and plugging device according to this utility model. Figure 4 This is a schematic diagram of the other side of the wire rope tensioner on the pipe water-sealing device of this utility model; Figure 5 This is a schematic diagram of the structure of the upper cover plate of the pipeline water-sealing device of this utility model; Figure 6 This is a schematic diagram of the connection between the steel wire rope and the lifting lug on a pipe water-sealing device according to this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Concrete pipe base; 2. Pipe; 3. First lifting lug; 4. Cover plate; 5. Second lifting lug; 6. Mounting housing; 7. Cable lock; 8. Annular rubber; 9. First wire rope; 10. Winding reel; 11. Second wire rope; 12. Mounting groove; 13. Rotating shaft; 14. First positioning hole; 15. Fixed shaft; 16. Fixed wheel; 17. Second positioning hole; 18. Ratchet; 19. Pawl; 20. Rotating handle; 21. Frame. Detailed Implementation

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model discloses a pipe sealing device for sealing a pipe 2 installed on a concrete pipe seat 1. The sealing device includes a first lifting lug 3, a cover plate 4, second lifting lugs 5, and multiple sets of wire rope tensioners. Multiple first lifting lugs 3 are installed on the concrete pipe seat 1, evenly distributed on both sides of the pipe 2. The cover plate 4 is installed at one end of the pipe 2, and multiple second lifting lugs 5 are arranged circumferentially on the cover plate 4, each corresponding to one of the first lifting lugs 3. Each set of wire rope tensioners is respectively installed between the corresponding second lifting lug 5 and the first lifting lug 3. Each set of wire rope tensioners includes a mounting housing 6, which is a long strip structure. A first wire rope 9 is provided on one side of the mounting housing 6. The end of the first wire rope 9 away from the mounting housing 6 is connected to the first lifting lug 3. A winding wheel 10 is provided on the other side of the mounting housing 6. A second wire rope 11 is wound on the winding wheel 10. The end of the second wire rope 11 away from the winding wheel 10 is connected to the corresponding second lifting lug 5.

[0020] When using the pipe water-tight sealing device disclosed in this utility model to seal pipe 2, the cover plate 4 is placed at one end of the pipe 2 to be sealed. Then, the first steel wire rope 9 is connected to the corresponding first lifting lug 3, and the second steel wire rope 11 is connected to the corresponding second lifting lug 5. After connection, the second steel wire rope 11 is tensioned by rotating the winding wheel 10. By connecting and tensioning the corresponding first lifting lug 3 and second lifting lug 5 with multiple sets of steel wire rope tensioners, the cover plate 4 can be tightly fitted to the end of pipe 2, sealing pipe 2. When using this sealing device for water tightness testing, there is no need to temporarily seal the end of pipe 2 with thick brick walls; simply tightening the cover plate 4 with multiple sets of steel wire rope tensioners achieves the sealing effect. This utility model has a simple structure and is easy to operate when sealing pipe 2 for water tightness testing, thus effectively improving testing efficiency and reducing testing costs.

[0021] like Figure 3 and Figure 4As shown, specifically, in order to connect the corresponding first lifting lug 3 and second lifting lug 5 respectively by means of a wire rope tensioner, the mounting housing 6 disclosed in this embodiment is provided with mounting grooves 12 on both sides. A rotating shaft 13 is rotatably provided in the mounting groove 12 on one side, and a winding wheel 10 is provided on the rotating shaft 13. Rotating the rotating shaft 13 can tension the second wire rope 11 on it through the winding wheel. The winding wheel 10 is provided with a first positioning hole 14 for fixing the end of the second wire rope 11. When winding the second wire rope 11, the end of the second wire rope 11 can be inserted into the first positioning hole 14 for fixing. A fixing shaft 15 is provided in the mounting groove 12 on the other side, and a fixing wheel 16 is provided on the fixing shaft 15. A second positioning hole 17 for fixing the end of the first wire rope 9 is provided on the fixing wheel 16. When connecting the first wire rope 9, the end of the first wire rope 9 can be directly inserted into the second positioning hole 17 for fixing.

[0022] After the second wire rope 11 is tensioned, the tension position of the second wire rope 11 needs to be fixed. Therefore, the rotating shaft 13 disclosed in this embodiment is also provided with a ratchet 18, and the inner wall of the mounting groove 12 is provided with a pawl 19 that meshes with the ratchet 18. Therefore, after rotating the winding wheel 10 to make the second wire rope 11 reach a suitable length and be tensioned, rotating the pawl 19 makes the pawl 19 mesh with the ratchet 18. At this time, the ratchet can no longer rotate, so the rotating shaft 13 and the winding wheel 10 on it can no longer rotate. At this time, the position of the winding wheel 10 is locked, and the length of the second wire rope 11 is also locked. At this time, when multiple second wire ropes 11 are in a tensioned state, the cover plate 4 can be tightly attached to the end of the pipe 2 and effectively seal the pipe 2.

[0023] During the process of tensioning the second steel wire rope 11, in order to facilitate operation and save effort, one end of the rotating shaft 13 disclosed in this embodiment passes through the mounting groove 12 and is connected to a rotating handle 20. The rotating handle 20 is fixedly connected to one end of the rotating shaft 13. Therefore, rotating the rotating handle 20 can drive the rotating shaft 13 to start rotating. Thus, the second steel wire rope 11 can be easily tensioned by rotating the handle 20.

[0024] Furthermore, such as Figure 5 As shown, to improve the sealing effect of the cover plate 4, an annular rubber 8 is provided on the side of the cover plate 4 facing the pipe 2 in this embodiment. The inner diameter of the annular rubber 8 is the same as the outer diameter of the pipe 2. When the cover plate 4 is tightly fitted to one end of the pipe 2, the annular rubber 8 just wraps around the end of the pipe 2, thus effectively sealing the pipe 2. In practice, the size of the pipe 2 is generally DN300-DN1000. Therefore, depending on the actual situation, annular rubber 8 can be processed to correspond to pipes 2 with sizes from DN300 to DN1000.

[0025] Furthermore, the cover plate 4 disclosed in this embodiment is made of steel. The end face of the pipe 2 is usually plastered with concrete or cement mortar. Although it strives for flatness, it will always have a certain degree of roughness. The steel cover plate can be processed to be very flat and smooth. When the second steel wire rope 11 is tightened, the hard steel cover plate can compress the rubber in the middle, so that the gasket produces sufficient elastic deformation, filling all microscopic unevenness and forming a reliable seal. In addition, in order to improve the strength of the cover plate 4 and further ensure the sealing effect, a cross skeleton 21 is also provided on one side of the cover plate 4 away from the pipe 2. By welding the intersecting skeleton 21 (usually a grid, star-shaped grid or radial reinforcing ribs) on the back, we greatly improve the effective moment of inertia of the cover plate in the direction of force, while the added weight is relatively limited. The skeleton is like a small "I-beam", dividing the cover plate into many small pieces. Each piece is supported by the skeleton, which greatly enhances its bending stiffness and prevents the cover plate 4 from bending excessively under water pressure.

[0026] To effectively seal the pipe 2, the cover plate 4 needs to be effectively tightened by multiple sets of wire rope tensioners. Therefore, this embodiment discloses four first lifting lugs 3, arranged in pairs on both sides of the pipe 2. Four second lifting lugs 5 are also correspondingly provided. The reason for this arrangement of four first lifting lugs 3 and two second lifting lugs 5 is that the four lugs (two on each side) form a rectangular or trapezoidal force-bearing plane. When the four sets of wire rope tensioners apply tension synchronously or separately, the force can be evenly distributed across the entire cover plate 4. This ensures that the cover plate 4 is flat and tightly pressed against the end face of the pipe 2, effectively preventing local leakage caused by uneven force distribution, which is the mechanical basis for achieving "effective sealing." While designing six, eight, or more first lifting lugs 3 and second lifting lugs 5 would theoretically result in more even force distribution, it would significantly increase material costs, processing costs, and the complexity of on-site installation. In actual operation, operators would need to adjust more tensioners, which could potentially lead to new uneven force distribution due to improper adjustment.

[0027] In practice, to facilitate the installation of the first lifting lug 3 on the concrete pipe seat 1, the first lifting lug 3 is fixed on a mounting plate. The mounting plate and the first lifting lug 3 are fixed by pre-drilling bolt holes on the concrete pipe seat 1 and then by bolts.

[0028] like Figure 6As shown, to facilitate the connection between the wire rope and the corresponding lifting lug, the first wire rope 9 disclosed in this embodiment passes through the first lifting lug 3 and is fixed by the wire locking device 7. The second wire rope 11 passes through the second lifting lug 5 and is also fixed by the wire locking device 7. The wire locking device 7 used here is a double-hole wire locking device. One or two holes of the double-hole wire locking device are provided with clamping block units, which apply a huge positive pressure to the wire rope through mechanical structures (such as bolts, levers, or springs). This positive pressure causes a strong static friction force to be generated between the clamping block and the surface of the wire rope; when this friction force is greater than the tension of the wire rope, the wire rope cannot slide and is thus "locked".

[0029] When using the pipe water-tight sealing device disclosed in this utility model to seal the pipe 2, the process flow is as follows: pre-embed bolts and set the four first lifting lugs 3 in pairs on both sides of the pipe 2 → transport the sealing cover plate 4 to the sealing position → use four sets of wire rope tensioners to connect and tension the corresponding second lifting lugs 5 to the first lifting lugs 3, and lock them with ratchet and pawl at the same time → water tightness test → after the test is completed, loosen the second wire rope 11 with ratchet and pawl → remove the sealing cover plate 4.

[0030] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A pipe sealing device for sealing a pipe (2) installed on a concrete pipe seat (1), characterized in that, include: Multiple first lifting lugs (3) are provided on the concrete pipe seat (1), and the multiple first lifting lugs (3) are evenly arranged on both sides of the pipe (2); A cover plate (4) is provided at one end of the pipe (2). Multiple second lifting lugs (5) are arranged along the circumference of the cover plate (4). The multiple second lifting lugs (5) correspond one-to-one with the multiple first lifting lugs (3). Multiple sets of wire rope tensioners are respectively set between the corresponding second lifting lug (5) and the first lifting lug (3). Each set of wire rope tensioners includes a mounting housing (6). A first wire rope (9) is provided on one side of the mounting housing (6). The end of the first wire rope (9) away from the mounting housing (6) is connected to the first lifting lug (3). A winding wheel (10) is provided on the other side of the mounting housing (6). A second wire rope (11) is wound on the winding wheel (10). The end of the second wire rope (11) away from the winding wheel (10) is connected to the corresponding second lifting lug (5).

2. The pipeline water-sealing and plugging device according to claim 1, characterized in that, The mounting housing (6) has mounting grooves (12) on both sides. A rotating shaft (13) is rotatably mounted in the mounting groove (12) on one side. The winding wheel (10) is mounted on the rotating shaft (13). The winding wheel (10) is provided with a first positioning hole (14) for fixing the end of the second wire rope (11). A fixing shaft (15) is provided in the mounting groove (12) on the other side. A fixing wheel (16) is provided on the fixing shaft (15). A second positioning hole (17) for fixing the end of the first wire rope (9) is provided on the fixing wheel (16).

3. A pipe water-sealing and plugging device according to claim 2, characterized in that, A ratchet (18) is also provided on the rotating shaft (13), and a pawl (19) that meshes with the ratchet (18) is provided on the inner wall of the mounting groove (12).

4. A pipe water-sealing and plugging device according to claim 2, characterized in that, One end of the rotating shaft (13) extends out of the mounting groove (12) and is connected to a rotating handle (20).

5. A pipe water-tight sealing device according to claim 1, characterized in that, The first wire rope (9) passes through the first lifting lug (3) and is then fixed by the wire lock (7). The second wire rope (11) passes through the second lifting lug (5) and is then fixed by the wire lock (7).

6. A pipe water-sealing and plugging device according to claim 1, characterized in that, The cover plate (4) is provided with an annular rubber (8) on the side facing the pipe (2), and the inner diameter of the annular rubber (8) is the same as the outer diameter of the pipe (2).

7. A pipe water-tight sealing device according to claim 1, characterized in that, The cover plate (4) has a frame (21) on one side away from the pipe (2).

8. A pipe water-tight sealing device according to claim 1, characterized in that, There are four first lifting lugs (3), and the four first lifting lugs (3) are arranged in pairs on both sides of the pipe (2). There are also four second lifting lugs (5).

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