A temporary pipe mouth plugging device

Abstract

The utility model relates to pipe orifice plugging technical field especially relates to a pipe orifice temporary plugging device. Bottom plate, compression board, main rod, push cylinder and locking assembly are included, and the main rod is fixed on the bottom plate, and the compression board is sealed and moves the sleeve and has on the main rod, and the soft tube is fixedly sleeved between the bottom plate and the compression board, and a plurality of reed are arranged between the bottom plate and the compression board in the soft tube, and the main rod is sleeved with the spring on the bottom plate and the compression board, and the locking assembly is sleeved on the main rod on the side of the compression board, and the push cylinder is sleeved on the main rod on the side of the locking assembly, and the push cylinder is screwed with the main rod, and the handle is fixed on the main rod end head on the side of the push cylinder. The pipe orifice temporary plugging device can realize effective plugging to the pipe orifice, and is simple to disassemble and assemble, and the disassembly and assembly time is short, and the artificial labor quantity is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of pipe sealing technology, and in particular to a temporary pipe sealing device. Background Technology

[0002] Gas has brought us many conveniences, which is inseparable from the laying and installation of gas pipelines. During the installation and maintenance of gas pipelines, if there is severe weather or work stoppage due to other schedules, it is necessary to temporarily seal the gas pipe openings to prevent dirt or water from entering the gas pipes and causing blockages or corrosion. This effectively reduces the workload and time required for cleaning the inside of the gas pipelines later, and improves the efficiency of subsequent pipeline construction.

[0003] The existing method of sealing gas pipeline openings during construction breaks involves welding sheet metal to the pipe openings. However, this method often results in the sheet metal rusting and breaking, rendering it ineffective. Furthermore, during pipeline rerouting or maintenance, the sealed pipe openings need to be opened for these procedures. Using sheet metal for sealing requires cutting the sheet metal off and grinding the opening before maintenance can proceed, leading to cumbersome installation and removal of the sheet metal, long installation and removal times, and a high amount of manual labor. Therefore, it is necessary to improve this method. Summary of the Invention

[0004] The purpose of this utility model is to solve the technical problems mentioned above, and to propose a temporary pipe sealing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a temporary pipe sealing device, comprising a base plate, a compression plate, a main rod, a push cylinder, and a locking assembly, characterized in that: a main rod is fixedly mounted on the base plate, a compression plate is movably and sealingly fitted on the main rod, a flexible tube is fixedly fitted between the base plate and the compression plate, multiple springs are provided between the base plate and the compression plate inside the flexible tube, a retaining spring is fitted on the main rod between the base plate and the compression plate, a locking assembly is fitted on the main rod on one side of the compression plate, a push cylinder is fitted on the main rod on one side of the locking assembly, the push cylinder is threadedly connected to the main rod, and a handle is fixedly mounted on the end of the main rod on one side of the push cylinder.

[0006] The locking assembly includes a locking cylinder, a support arm, and an anti-slip head. The locking cylinder is fitted onto the main rod, and mounting slots are evenly distributed around the circumference of the locking cylinder. The support arm is hinged to the mounting slot via a pin, and the anti-slip head is movably mounted on the support arm via a pin.

[0007] The inner wall of the lock cylinder is provided with an inner protrusion, and a spline groove is provided on the inner protrusion. A spline is provided on the circumference of the main rod corresponding to the spline groove, and the spline and the spline groove are slidably connected.

[0008] The support arm is long and narrow, with a sloping protrusion at one end. A flange is provided on the main rod corresponding to the sloping protrusion. The flange contacts the sloping protrusion, and the flange can squeeze the sloping protrusion to push the support arm to swing.

[0009] The anti-slip head is a rectangular block with a mounting groove at the bottom for cooperating with the support arm. The mounting groove has a triangular cross-section. An anti-slip rubber layer is provided on the upper surface of the anti-slip head, and anti-slip rubber teeth are provided on the surface of the anti-slip rubber layer.

[0010] A dust baffle plate is movably fitted around the circumference of the push cylinder. The dust baffle plate is circular, and a damping layer is provided on the inner side of the dust baffle plate to increase the damping force between the dust baffle plate and the push cylinder.

[0011] The pusher cylinder has rotating handles evenly distributed around one end of its circumference, which can drive the pusher cylinder to rotate.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This temporary pipe sealing device can be directly inserted into the gas pipe opening. By rotating the handle, the handle drives the pusher to rotate clockwise around the main rod. The pusher pushes the locking cylinder to move to the left along the axial direction of the main rod. At the same time, the locking cylinder simultaneously pushes the compression plate to move to the left along the axial direction of the main rod, reducing the distance between the base plate and the compression plate. When the distance between the base plate and the compression plate decreases, the base plate and the compression plate compress and deform the hose, creating a sealed space inside the hose. The gas inside the hose assists in deforming into a shape with a convex center. This convex part of the hose contacts the inner wall of the gas pipe, thus forming a seal on the pipe opening. Simultaneously, the spring, under the compression action of the base plate and the compression plate, also deforms along with the hose. The spring provides auxiliary support to the inner wall of the hose, pushing the convex part of the hose to make tight contact with the inner wall of the gas pipe. The hose is a soft material, and the hose adheres tightly to the pipe wall to form a seal. As the gap between the plate and the compression plate decreases, the flange squeezes the oblique protrusion, causing the support arm to swing around the pin axis. This causes the anti-slip rubber layer and anti-slip rubber teeth on the support arm to contact and lock with the inner wall of the gas pipe, further improving the locking tightness of the sealing device. When the spline of the main rod limits the push cylinder, it prevents excessive displacement of the push cylinder and the flange. At this time, the push cylinder can no longer continue to rotate clockwise. Under the elastic force of the retaining spring, there is a retaining force between the push cylinder and the main rod. Locking is achieved by the friction between the threads of the push cylinder and the main rod. Then, the worker pushes the ash baffle along the axial direction of the push cylinder to be close to the gas pipe port. The ash baffle is used to assist in blocking ash at the gas pipe port. Thus, the sealing operation of the temporary pipe port sealing device is completed. The temporary pipe port sealing device can achieve effective sealing; at the same time, it is simple to disassemble and assemble, and the disassembly and assembly time is short, effectively reducing the amount of manual labor. Attached Figure Description

[0013] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction; Figure 3 This is a cross-sectional view of the structure of the present invention installed at the gas pipe inlet; Figure 4 for Figure 3 Enlarged structural diagram at point B.

[0014] Legend: 1. Base plate; 2. Compression plate; 3. Main rod; 4. Push cylinder; 5. Sealing ring; 6. Hose; 7. Spring; 8. Clamping spring; 9. Locking cylinder; 10. Support arm; 11. Anti-slip head; 12. Inner convexity; 13. Spline; 14. Assembly groove; 15. Oblique convexity; 16. Flange; 17. Mounting groove; 18. Anti-slip rubber layer; 19. Anti-slip rubber teeth; 20. Handle; 21. Gas pipe; 22. Rotary handle; 23. Ash baffle. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Please see Figure 1-4 The temporary sealing device for the pipe opening includes a base plate 1, a compression plate 2, a main rod 3, a push cylinder 4, and a locking assembly. The main rod 3 is fixedly installed at the center of one end face of the base plate 1. The compression plate 2 is movably fitted on the main rod 3 through a sealing ring 5. When in use, the compression plate 2 can slide along the axial direction of the main rod 3.

[0018] A flexible hose 6 is fixedly installed between the base plate 1 and the compression plate 2. Both ends of the flexible hose 6 are sealed and fixedly connected to the base plate 1 and the compression plate 2, respectively. The flexible hose 6 is made of soft PVC material. Multiple springs 7 are evenly distributed in a ring between the base plate 1 and the compression plate 2 inside the flexible hose 6. Both ends of the springs 7 are fixedly connected to the base plate 1 and the compression plate 2, respectively. The springs 7 are tightly fitted to the inside of the flexible hose 6. When in use, the gap between the base plate 1 and the compression plate 2 is reduced, which causes the flexible hose 6 to be squeezed and deformed. The flexible hose 6 is deformed into a shape with a bulge in the center of the circumference. The inside of the flexible hose 6 is a closed space. The gas inside the flexible hose 6 will also provide the first auxiliary support for the deformed shape of the flexible hose 6. At the same time, the springs 7 also deform with the flexible hose 6, and the springs 7 provide the second auxiliary support for the inner wall of the flexible hose 6.

[0019] A clamping spring 8 is fitted on the main rod 3 between the base plate 1 and the compression plate 2. The two ends of the clamping spring 8 are in contact with the base plate 1 and the compression plate 2 respectively. When in use, the elastic force of the clamping spring 8 creates a preload between the base plate 1 and the compression plate 2, causing the base plate 1 and the compression plate 2 to tend to move relative to each other.

[0020] A locking assembly is fitted on the main rod 3 on one side of the compression plate 2. The locking assembly includes a locking cylinder 9, a support arm 10, and an anti-slip head 11. The locking cylinder 9 is fitted on the main rod 3. The inner wall of the locking cylinder 9 is provided with an inner protrusion 12, and a spline groove is provided on the inner protrusion 12. A spline 13 is provided on the circumference of the main rod 3 corresponding to the spline groove. The spline 13 and the spline groove are slidably connected. In use, the circumferential limit is formed between the locking cylinder 9 and the main rod 3 by the cooperation of the spline 13 and the spline groove. The locking cylinder 9 and the main rod 3 can slide axially relative to each other.

[0021] The locking cylinder 9 has four evenly distributed mounting slots 14 on its circumference. A support arm 10 is hinged to the mounting slot 14 by a pin. The support arm 10 is long and narrow. One end of the support arm 10 is provided with a slanted protrusion 15. A flange 16 is provided on the main rod 3 corresponding to the slanted protrusion 15. The flange 16 contacts the slanted protrusion 15. In use, the flange 16 can squeeze the slanted protrusion 15 to push the support arm 10 to swing around the pin axis.

[0022] An anti-slip head 11 is movably mounted on the other end of the support arm 10 via a pin. The anti-slip head 11 is a rectangular block, and the bottom of the anti-slip head 11 has an installation groove 17 for cooperating with the support arm 10. The installation groove 17 has a triangular cross section. The purpose of this setting is to limit the anti-slip head 11 on the support arm 10 through the installation groove 17, thereby keeping the upper surface of the anti-slip head 11 flush with the inner wall of the gas pipe 21.

[0023] The upper surface of the anti-slip head 11 is provided with an anti-slip rubber layer 18, and the surface of the anti-slip rubber layer 18 is provided with anti-slip rubber teeth 19. The purpose of this arrangement is that, while the anti-slip rubber layer 18 and the anti-slip rubber teeth 19 play an anti-slip role, they also provide a certain elastic buffer between the anti-slip block and the inner wall of the gas pipe 21 under their own elastic force, so as to avoid hard contact between the two.

[0024] A push cylinder 4 is fitted on the main rod 3 on one side of the locking assembly. The inner wall of the push cylinder 4 is provided with internal threads, and the circumference of the main rod 3 corresponding to the push cylinder 4 is provided with external threads. The internal threads of the push cylinder 4 and the external threads of the main rod 3 are threaded together.

[0025] A handle 20 is fixedly installed on the end of the main rod 3 on one side of the push cylinder 4. The handle 20 can limit the push cylinder 4 to ensure a stable connection between the base plate 1, compression plate 2, main rod 3, push cylinder 4 and locking assembly. When in use, the handle 20 also makes it convenient for workers to hold the sealing device to perform pipe sealing operations.

[0026] Multiple rotating handles 22 are evenly distributed on one end of the push cylinder 4. When in use, the push cylinder 4 can be rotated by rotating handles 22.

[0027] A baffle plate 23 is movably mounted on the circumference of the push cylinder 4. The baffle plate 23 is circular, and a damping layer is provided on the inner side of the baffle plate 23 to increase the damping force between the baffle plate 23 and the push cylinder 4. In use, the baffle plate 23 can be adjusted in position along the axial direction of the push cylinder 4. The baffle plate 23 is used to assist in blocking ash at the port of the gas pipe 21.

[0028] This temporary pipe sealing device can be made into a suitable product for the pipe diameter of different specifications of gas pipes 21.

[0029] Working principle: When using this temporary pipe sealing device, the operator first holds the handle 20 and aligns the base plate 1 of the sealing device with the opening of the gas pipe 21 to be sealed. Then, the sealing device is inserted into the pipe opening until the anti-slip head 11 of the sealing device also enters the pipe opening. At this point, the insertion of the sealing device is stopped. Immediately afterwards, the operator holds the handle 20 with one hand and rotates the handle 22 clockwise with the other hand. The handle 22 drives the push cylinder 4 to rotate clockwise around the main rod 3. Since the push cylinder 4 is connected to the main rod 3 by a thread, while the push cylinder 4 rotates clockwise, it pushes the locking cylinder 9 to move to the left along the axial direction of the main rod 3. At this time, the locking cylinder 9 simultaneously pushes the compression plate 2 along the axis of the main rod 3. The device moves to the left, reducing the distance between the base plate 1 and the compression plate 2. When the distance between the base plate 1 and the compression plate 2 decreases, the base plate 1 and the compression plate 2 compress and deform the hose 6. The inside of the hose 6 becomes a sealed space, and the gas inside the hose 6 deforms into a shape with a convex shape in the center of the circumference. The convex part in the center of the circumference of the hose 6 contacts the inner wall of the gas pipe 21, thus forming a blockage at the pipe opening. At the same time, the spring 7 also deforms along with the hose 6 under the compression action of the base plate 1 and the compression plate 2. The spring 7 provides auxiliary support to the inner wall of the hose 6, pushing the convex part in the center of the circumference of the hose 6 into close contact with the inner wall of the gas pipe 21. The hose 6 is a soft material, and the hose 6 adheres tightly to the pipe wall to form a blockage.

[0030] As the distance between the base plate 1 and the compression plate 2 decreases, the flange 16 presses against the inclined protrusion 15, pushing the support arm 10 to swing around the pin axis. This causes the anti-slip rubber layer 18 and anti-slip rubber teeth 19 of the anti-slip head 11 on the support arm 10 to contact and lock tightly against the inner wall of the gas pipe 21, further improving the locking tightness of the sealing device. When the spline 13 of the main rod 3 limits the push cylinder 4, it prevents excessive displacement of the push cylinder 4 and the flange 16. At this time, the push cylinder 4 can no longer continue to rotate clockwise. Under the elastic force of the retaining spring 8, there is a retaining force between the push cylinder 4 and the main rod 3. Locking is achieved by the friction between the threads of the push cylinder 4 and the main rod 3. Then, the worker pushes the ash baffle 23 along the axial direction of the push cylinder 4 to be close to the gas pipe 21 port. The ash baffle 23 is used to assist in blocking ash at the gas pipe 21 port. Thus, the sealing operation of the temporary pipe sealing device is completed.

[0031] When it is necessary to remove it, simply turn the handle 22 counterclockwise to unlock the hose 6 and the anti-slip head 11, and then you can remove it.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A temporary pipe sealing device, comprising a base plate (1), a compression plate (2), a main rod (3), a push cylinder (4), and a locking assembly, characterized in that: A main rod (3) is fixedly mounted on the base plate (1). A compression plate (2) is sealed and movable on the main rod (3). A hose (6) is fixedly mounted between the base plate (1) and the compression plate (2). Multiple springs (7) are provided between the base plate (1) and the compression plate (2) inside the hose (6). A retaining spring (8) is mounted on the main rod (3) between the base plate (1) and the compression plate (2). A locking assembly is mounted on the main rod (3) on one side of the compression plate (2). A push cylinder (4) is mounted on the main rod (3) on one side of the locking assembly. The push cylinder (4) is threadedly connected to the main rod (3). A handle (20) is fixedly mounted on the end of the main rod (3) on one side of the push cylinder (4).

2. The temporary pipe sealing device according to claim 1, characterized in that: The locking assembly includes a locking cylinder (9), a support arm (10), and an anti-slip head (11). The locking cylinder (9) is fitted onto the main rod (3). Assembly slots (14) are evenly distributed on the circumference of the locking cylinder (9). The support arm (10) is hinged in the assembly slot (14) by a pin. The anti-slip head (11) is movably installed on the support arm (10) by a pin.

3. The temporary pipe sealing device according to claim 2, characterized in that: The inner wall of the lock cylinder (9) is provided with an inner protrusion (12), and a spline groove is provided on the inner protrusion (12). A spline (13) is provided on the circumference of the main rod (3) corresponding to the spline groove. The spline (13) and the spline groove are slidably connected.

4. A temporary pipe sealing device according to claim 2, characterized in that: The support arm (10) is long and narrow. One end of the support arm (10) is provided with a sloping protrusion (15). The main rod (3) corresponding to the sloping protrusion (15) is provided with a flange (16). The flange (16) contacts the sloping protrusion (15). The flange (16) can squeeze the sloping protrusion (15) to push the support arm (10) to swing.

5. A temporary pipe sealing device according to claim 2, characterized in that: The anti-slip head (11) is a rectangular block. The bottom of the anti-slip head (11) is provided with an installation groove (17) for cooperating with the support arm (10). The installation groove (17) has a triangular cross section. The upper surface of the anti-slip head (11) is provided with an anti-slip rubber layer (18), and the surface of the anti-slip rubber layer (18) is provided with anti-slip rubber teeth (19).

6. A temporary pipe sealing device according to claim 1, characterized in that: The push cylinder (4) is movably fitted with a dust baffle (23) on its circumference. The dust baffle (23) is circular and a damping layer is provided on the inner side of the dust baffle (23) to increase the damping force between the dust baffle (23) and the push cylinder (4).

7. A temporary pipe sealing device according to claim 1, characterized in that: The push cylinder (4) has rotating handles (22) evenly distributed on one end of its circumference, which can drive the push cylinder (4) to rotate.

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