A pipe port sealing device and method of construction

Abstract

The application discloses a pipe port sealing device and a construction method. The pipe port sealing device comprises a plug for plugging a pipe port, a clamp for sleeving on a pipe body, a disc provided on the plug, a plurality of clamping grooves uniformly distributed on the edge of the disc in the circumferential direction, a plurality of tension bolts corresponding to the clamping grooves and uniformly distributed on the clamp in the circumferential direction, a first end of each of the tension bolts being rotationally connected with the clamp, a second end of each of the tension bolts penetrating through the clamping groove, and the second end of each of the tension bolts being provided with a thread. The clamp sleeved on the pipe body is used to seal the plug on the pipe port by means of the tension bolts. The sealing device can be disassembled by adjusting the tightness of the nuts of the tension bolts, and is convenient to install and disassemble and can be repeatedly used.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline construction, in particular to a pipe port sealing device and a construction method. BACKGROUND

[0002] During the installation of a buried pipe, the laying of the buried pipe needs to be temporarily suspended due to various reasons, and the soil needs to be backfilled. In order to prevent soil or water from entering the laid pipe, the pipe port needs to be temporarily plugged. The traditional plugging process usually uses a steel plate to weld and plug the pipe port to prevent soil and water from entering the pipe. When the buried pipe is reinstalled, the steel plate used for plugging the pipe port is opened by gas cutting. This method not only wastes energy, but also is very troublesome and increases the workload. SUMMARY

[0003] To solve the problem of temporary plugging of a buried pipe, the present application provides a pipe port sealing device, which is easy to install and remove and can be reused.

[0004] The technical scheme adopted by the present application is to design a pipe port sealing device, which comprises a plug for plugging the pipe port and a clamp for sleeving on the pipe body. A disc is arranged on the plug. A plurality of clamping grooves are uniformly distributed on the edge of the disc in the circumferential direction. The length of the clamping groove is along the radial direction of the disc. A plurality of tension bolts corresponding to the clamping grooves are uniformly distributed on the clamp in the circumferential direction. The first end of the tension bolt is rotatably connected to the clamp. The second end of the tension bolt passes through the clamping groove. The second end of the tension bolt has a thread. The clamp is tightened against the disc by a nut matched with the thread.

[0005] In some embodiments, the clamping groove is a radial socket arranged on the disc.

[0006] In some embodiments, the plug is a conical plug.

[0007] In some embodiments, the clamp comprises a first clamp and a second clamp which are arranged side by side and sleeved on the pipe body. Each clamp is rotatably connected by four connecting rods through shaft hinges. There are two tension bolts. The two opposite hinge shafts of the first clamp and the second clamp are rotatably connected to the two ends of a V-shaped rod, respectively. The middle part of the V-shaped rod is rotatably connected to the first end of the tension bolt.

[0008] In some embodiments, the first end of the tension bolt is rotatably connected to the middle part of the V-shaped rod through a pull rod.

[0009] In some embodiments, the V-shaped rod comprises a first short rod and a second short rod. The end parts of the first short rod and the second short rod are rotatably connected to the end part of the pull rod.

[0010] In some embodiments, the connecting rod has an anti-skid layer.

[0011] In some embodiments, two adjacent connecting rods of the first clamp near the disc are connected by a tension spring.

[0012] In some embodiments, two adjacent connecting rods of the second clamp far from the disc are connected by a tension spring.

[0013] A construction method of a pipe port sealing device: first, the clamp is sleeved on the pipe body, then the tension bolt is passed through the clamping groove, and then the disc is fixed on the pipe port by the nut.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. The present application uses the clamp sleeved on the pipe body to seal the plug in the pipe port by the tension bolt, and the sealing device can be disassembled by adjusting the tightness of the nut of the tension bolt, which is convenient to install and disassemble and can be reused.

[0016] 2. By providing a radial socket on the disc, the tension bolt can be inserted into or separated from the radial socket by rotating, and the nut does not need to be completely removed from the tension bolt to separate or connect the tension bolt and the plug.

[0017] 3. By designing the clamp as a deformable rectangular frame, the tension of the tension bolt can automatically deform the rectangular frame of the clamp, and the clamp can automatically clamp the pipe body without the need for locking the connecting bolt, which is more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be described in detail below with specific examples and accompanying drawings, which are not necessarily drawn to scale, and similar reference numerals can be used to describe similar components in different views. The accompanying drawings generally illustrate embodiments discussed herein. In the drawings:

[0019] Figure 1 is a schematic view of the sealing device of example one in a sealed state.

[0020] Figure 2 is a left view schematic view of Figure 1 .

[0021] Figure 3 is a schematic view of the tension bolt of the sealing device of example one being rotated open.

[0022] Figure 4 is a schematic view of the sealing device of example two.

[0023] Figure 5 is a schematic diagram of the sealing device of embodiment two applied to a larger pipe body.

[0024] Figure 6 is a schematic diagram of the sealing device of embodiment two applied to a smaller pipe body.

[0025] Figure 7 is a schematic diagram of the force on the middle hinge shaft of the V-shaped rod of the sealing device of embodiment two.

[0026] Figure 8 is a schematic diagram of the first clamp clamped on the pipe body.

[0027] Figure 9 is a schematic diagram of the second clamp clamped on the pipe body.

[0028] In the figure, 1 is a pipe body; 2 is a plug; 3 is a ring body; 4 is a connecting bolt; 5 is a disc; 501 is a clamping groove; 6 is a tension bolt; 7 is a nut; 8 is a first clamp; 9 is a second clamp; 10 is a first short rod; 11 is a second short rod; 12 is a middle hinge shaft; 13 is a pull rod; and 14 is a tension spring. DETAILED DESCRIPTION

[0029] The following is a specific embodiment of the present application, and the technical solutions of the present application are further described in conjunction with the accompanying drawings. However, the present application is not limited to these embodiments, and the following embodiments do not limit the invention involved in the claims. In addition, all combinations of the features described in the embodiments are not necessarily required by the solutions of the invention.

[0030] The principles and structures of the present application will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] Embodiment one

[0032] As shown in Figure 1 , 2 , 3, a pipe port sealing device includes a plug for plugging a pipe port, and also includes a clamp for sleeving on a pipe body 1. In this embodiment, the clamp is a ring body 3 with an opening, and the opening is connected by connecting bolts 4 at both ends. The size of the opening is controlled by adjusting the connecting bolts 4, so that the clamp is clamped on the pipe body 1 or loosened from the pipe body 1.

[0033] The plug 2 is provided with a disc 5, and a plurality of clamping grooves 501 are uniformly distributed on the edge of the disc 5. The length of the clamping groove 501 is along the radial direction of the disc 5. In this embodiment, the clamping groove 501 is a radial socket provided on the disc 5, that is, the clamping groove 501 is equivalent to a notch on the edge of the disc 5, and the notch is in the radial direction.

[0034] The clamp is circumferentially distributed with tension bolts 6 corresponding to the slots 501. The first end of the tension bolt 6 is rotatably connected to the clamp, and the first end of the bolt is connected to the clamp via a shaft hinge. The second end of the tension bolt 6 passes through the slots 501 and has threads. The clamp is tightened by a nut 7 that mates with the threads, thereby fixing the disc 5 toward the pipe opening and sealing the pipe opening with the plug 2. In this embodiment, the plug 2 is a conical plug 2 to accommodate pipe openings of different sizes. Of course, if the sealing requirements are not high, the plug 2 can be omitted, and only the disc 5 can be used as the plug 2 to seal the port.

[0035] During construction, first, the clamp is fitted onto the pipe body 1. Then, the tension bolt 6 is rotated, causing it to engage with the slot 501, i.e., pass through the slot 501. Because it is engaged, the nut 7 can remain on the tension bolt 6 without being removed, making it convenient and quick to use. After the tension bolt 6 engages with the slot 501, the nut 7 secures the disc 5 to the pipe end. Similarly, when the sealing device needs to be removed, simply loosen the nut 7 and rotate the tension bolt 6 to move it out of the notch. The nut 7 does not need to be completely removed from the tension bolt 6. This allows the disc 5 and the plug 2 to be removed. Then, loosen the connecting bolt 4 at the clamp opening to remove the clamp from the pipe body 1.

[0036] Example 2

[0037] like Figures 4 to 9 As shown, unlike the above embodiment, the clamp includes a first clamp 8 and a second clamp 9 that are sleeved on the pipe body 1 side by side. Each clamp is a rectangular frame formed by four connecting rods that are rotatably connected end to end by a hinge. Because the four rods are rotatably connected, each clamp can be freely deformed into a parallelogram at different angles under the action of external force, so as to clamp pipe bodies 1 of different diameters.

[0038] In this embodiment, there are two tension bolts 6. The two opposing hinge shafts of the first clamp 8 and the second clamp 9 are rotatably connected to the two ends of the V-shaped rod, and the middle part of the V-shaped rod is rotatably connected to the first end of the tension bolt 6.

[0039] The V-shaped rod of the embodiment comprises a first short rod 10 and a second short rod 11, the end of the first short rod 10 and the end of the second short rod 11 are rotationally connected with the end of the pull rod 13 to form the middle hinge shaft 12 of the V-shaped rod, the angle of the V-shaped rod formed in this way is variable, the other end of the first short rod 10 is rotationally connected with the hinge shaft of the first clamping hoop 8, and the other end of the second short rod 11 is rotationally connected with the hinge shaft of the second clamping hoop 9.

[0040] The first end of the tension bolt 6 is rotationally connected with the middle of the V-shaped rod through the pull rod 13, that is, the first end of the tension bolt 6 is rotationally connected with one end of the pull rod 13, and the other end of the pull rod 13 is rotationally connected with the middle hinge shaft 12 of the V-shaped rod. The pull rod makes the tension bolt keep parallel to the pipe body regardless of the change of the shape of the V-shaped rod.

[0041] When the tension bolt is tightened through the clamping slot, under the action of the tension F of the tension bolt, the first short rod of the two V-shaped rods has the pressure F1 towards the hinge shaft of the first clamping hoop, so that the rectangular frame of the first clamping hoop is deformed to firmly hold the pipe body and generate the clamping force F3 on the pipe body, and is clamped on the pipe body; at this time, the second short rod has the pulling force F2 away from the hinge shaft of the second clamping hoop, so that the rectangular frame of the second clamping hoop is deformed to firmly hold the pipe body and generate the clamping force F3 on the pipe body, and is clamped on the pipe body, and F1, F2 and F3 are in force balance. Since the clamping hoop can be deformed according to the size of the pipe body, the embodiment can be used for sealing ports of various pipe diameters.

[0042] The connecting rod has an anti-skid layer to improve the friction force, so that the clamping hoop is firmly clamped on the pipe body 1.

[0043] The two adjacent connecting rods of the hinge shaft of the first clamping hoop 8 which is not connected with the tension bolt 6 near the disc 5 are connected through the tension spring 14. The two adjacent connecting rods of the hinge shaft of the second clamping hoop 9 which is connected with the tension bolt 6 away from the disc 5 are connected through the tension spring 14. The tension spring 14 can make the clamping hoop have a pre-tightening force on the pipe body 1, so as to facilitate the fixation of the initial position.

[0044] The embodiment realizes the automatic deformation of the rectangular frame of the clamping hoop by the tension of the tension bolt 6, realizes the automatic clamping of the clamping hoop on the pipe body 1, and does not need to lock the connecting bolt 4 as in the first embodiment, so the use is more convenient.

[0045] Although a few terms are used quite frequently herein, the possibility of using other terms is not excluded. The use of these terms is merely intended to facilitate the description and explanation of the nature of the present application; they are not to be construed as any kind of additional limitation on the spirit of the present application. The order of execution, steps, processes, etc. of the devices and methods shown in the specification and drawings can be executed in any order unless otherwise specifically noted, or unless it is inherent from the circumstances, provided that the previous process is not injured by the later process. The use of similar ordinal terms (for example, "first", "second", "third", "next", "then", "again", "thereafter", etc.) used for convenience of description and explanation does not mean that the order must be implemented in such a sequence.

[0046] Those of ordinary skill in the art will appreciate that all directional references (e.g., upper, lower, upward, down, downward, top, bottom, left, right, vertical, horizontal, etc.) are descriptive terms used to facilitate the reader's understanding of the present application and are not meant to limit the scope of the present application to only the positions described. Unless otherwise specified, the orientation terms (for example, inner, outer, etc.) do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, unless otherwise specified. The orientation terms "inner", "outer" refer to the inner and outer relative to the outline of each component itself.

[0047] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", etc. can be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0048] In addition, some ambiguous terms (e.g., substantially, certain, generally, etc.) can refer to slight inaccuracies or slight deviations in conditions, quantities, values, or dimensions, etc., some of which are within the range of manufacturing deviations or tolerances. It should be noted that the use of the terms "first", "second", etc. to define parts of components is merely for the convenience of distinguishing the corresponding parts of components, and the above terms have no special meaning unless otherwise stated, and therefore cannot be construed as limiting the scope of protection of the present application.

[0049] The specific embodiments described herein are presented for purposes of illustration only and not limitation. Various modifications or changes in addition or substitution to the specific embodiments described herein can occur to those skilled in the art from the teachings of the description and accompanying drawings, and it is intended that the following claims encompass all such modifications or changes.

Claims

1. A tube port sealing device comprising a plug for plugging a tube port, characterised in that, The application also discloses a clamp for sleeving on the pipe body, wherein the plug is provided with a disc, a plurality of clamping grooves are uniformly distributed on the edge of the disc in the circumferential direction, the length of the clamping grooves is along the radial direction of the disc, a plurality of tension bolts corresponding to the clamping grooves are uniformly distributed on the clamp in the circumferential direction, the first end of the tension bolt is rotationally connected with the clamp, the second end of the tension bolt passes through the clamping groove, the second end of the tension bolt is provided with a thread, and the clamp is tightened on the disc through a nut matched with the thread; the clamping groove is a radial insertion hole arranged on the disc; the plug is a conical plug; the clamp comprises a first clamp and a second clamp which are arranged in parallel and sleeved on the pipe body, each clamp is rotationally connected by four connecting rods through shaft hinges; the tension bolt is two, the two opposite hinge shafts of the first clamp and the second clamp are rotationally connected at the two ends of a V-shaped rod, and the middle part of the V-shaped rod is rotationally connected with the first end of the tension bolt.

2. The tube port sealing device of claim 1, wherein, The first end of the tension bolt is rotationally connected with the middle part of the V-shaped rod through a pull rod.

3. The tube port sealing device of claim 2, wherein, The V-shaped rod comprises a first short rod and a second short rod, and the end parts of the first short rod and the second short rod are rotationally connected with the end part of the pull rod.

4. The tube port sealing device of claim 1, wherein, The connecting rod is provided with an antiskid layer.

5. The tube port sealing device of claim 1, wherein, The two adjacent connecting rods of the shaft hinge of the first clamp which are not connected with the tension bolt are connected through a tension spring close to the disc.

6. The tube port sealing device of claim 1, wherein, The two adjacent connecting rods of the shaft hinge of the second clamp which are connected with the tension bolt are connected through a tension spring away from the disc.

7. A method of installing a pipe port sealing device according to any one of claims 1 to 6, characterised in that, First, the clamp is sleeved on the pipe body, then the tension bolt passes through the clamping groove, and then the disc is fixed on the pipe port through the nut.

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