A pipe inner wall connection sealing device

Abstract

This utility model discloses a pipe inner wall connection sealing device, including a connecting hose and a pipe to be connected. Mounting rings are fixed to both ends of the connecting hose, and an insertion cone is fixed to the other side of each mounting ring. The insertion cone is inserted into the end of the pipe to be connected. A fixing ring is fitted onto the pipe to be connected. Threaded blocks are fixed to both sides of the fixing ring. Bearing seats are fixed to both sides of the mounting ring. An adjusting threaded shaft is rotatably mounted inside the bearing seats. The adjusting threaded shaft is threadedly engaged with the fixing ring. A sealing rubber gasket is fixed to the outer wall of the insertion cone, and a knob is fixed to the end of the adjusting threaded shaft. By connecting the two mounting rings with the connecting hose, and because the connecting hose can deform, the two pipes to be connected do not need to be perfectly aligned, allowing for a certain range of misalignment. Compared with existing devices, this further optimizes and facilitates pipe connection operations for operators.

Description

Technical Field

[0001] This utility model relates to a connection and sealing device, and more particularly to a connection and sealing device for the inner wall of a pipe. Background Technology

[0002] During the laying of water conservancy pipelines, it is necessary to connect multiple sections of the pipeline, which requires the use of corresponding connection and sealing devices.

[0003] For example, a water conservancy engineering pipeline inner wall connection and sealing device, disclosed in Chinese Patent Publication No. CN222277780U, includes two engineering pipelines arranged symmetrically. Inner wall pipes are slidably connected to the inner walls of the two pipelines at their adjacent ends. Sealing discs are fixedly connected to the side walls of the two inner wall pipes at their adjacent ends. The two sealing discs are respectively connected to the two inner wall pipes. A sealing tube is slidably connected to the inner walls of the two sealing discs and the two inner wall pipes. A threaded tube is rotatably connected to the side wall of one sealing disc near the other sealing disc. A threaded post is internally threaded into the threaded tube, and the threaded post is fixedly connected to the other sealing disc. A limit tube is also fixedly connected to the side wall of one sealing disc near the other sealing disc. This utility model allows workers to complete the connection and sealing work of the two engineering pipelines within a limited space, greatly facilitating construction and operation.

[0004] Some problems were found when using the existing water conservancy project pipeline inner wall connection sealing device. First, although it does not require moving and adjusting the distance between the two pipes, it is still necessary to adjust the posture of the pipes afterward to ensure that the two pipes are horizontally aligned. Second, it can only connect pipes of a certain size, and cannot effectively connect pipes with different inner diameters. Utility Model Content

[0005] The purpose of this invention is to provide a pipe inner wall connection sealing device to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe inner wall connection sealing device, comprising a connecting hose and a pipe to be connected, wherein mounting rings are fixedly connected to both ends of the connecting hose, and an insertion cone is fixedly connected to the other side of the mounting ring, the insertion cone is inserted into the end of the pipe to be connected, a fixing ring is sleeved on the pipe to be connected, threaded sleeves are fixedly connected to both sides of the fixing ring, and bearing seats are fixedly connected to both sides of the mounting ring, wherein an adjusting threaded shaft is rotatably installed in the bearing seat, and the adjusting threaded shaft is threadedly engaged with the fixing ring.

[0007] Preferably, a sealing rubber gasket is fixed to the outer wall of the insertion cone, and a knob is fixed to the end of the adjusting threaded shaft.

[0008] Preferably, a plurality of nuts are embedded in the fixing ring, and fixing bolts are installed on the internal threads of the nuts.

[0009] Preferably, a rubber pad is fixed to the lower end of the fixing bolt.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By using a connecting hose to connect two mounting rings, the two pipes to be connected do not need to be perfectly aligned due to the deformation of the connecting hose, allowing for a certain range of misalignment. This further optimizes the existing device and makes it easier for operators to perform pipe connection operations.

[0012] 2. The tapered end of the insertion port gradually tapers, allowing it to be inserted into the pipe to be connected. The insertion depth varies depending on the inner diameter of the pipe, enabling the device to connect pipes of different inner diameters. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the connecting pipe of this utility model;

[0015] Figure 3 This is a cross-sectional view of the present invention;

[0016] Figure 4 This is a schematic diagram of the mounting ring structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the fixing ring structure of this utility model.

[0018] In the diagram: 1. Connecting hose; 2. Mounting ring; 201. Insertion cone; 202. Sealing rubber gasket; 203. Bearing seat; 204. Adjusting threaded shaft; 4. Fixing ring; 401. Threaded sleeve; 402. Nut; 403. Fixing bolt; 5. Pipe to be connected. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5This utility model provides a technical solution: a pipe inner wall connection sealing device, including a connecting hose 1 and a pipe 5 to be connected. The connecting hose 1 is fixedly connected to both ends with mounting rings 2, and the other side of the mounting ring 2 is fixedly connected with an insertion cone 201. The insertion cone 201 is inserted into the end of the pipe 5 to be connected. A fixing ring 4 is sleeved on the pipe 5 to be connected. Threaded sleeves 401 are fixedly connected to both sides of the fixing ring 4. Bearing seats 203 are fixedly connected to both sides of the mounting ring 2. An adjusting threaded shaft 204 is rotatably installed in the bearing seat 203. The adjusting threaded shaft 204 is threadedly engaged with the fixing ring 4.

[0021] In this embodiment, the tapered insertion port 201, with its tapered end gradually tapering, is inserted into the pipe 5 to be connected, so that the surface of the tapered insertion port 201 abuts against the end of the pipe 5. The insertion depth of the tapered insertion port 201 varies depending on the inner diameter of the pipe 5, allowing the device to connect pipes of different inner diameters, thus increasing its applicability. The fixing ring 4 is fitted onto the outer wall of the pipe 5 and secured to it using a fixing mechanism. The threaded shaft 204 engages with the fixing ring 4; rotating the threaded shaft 204 drives the shaft... The movement of bearing seat 203 can drive the movement of mounting ring 2, which in turn can drive the movement of insertion cone 201, thereby driving insertion cone 201 to be inserted into the pipe 5 to be connected and applying a certain pressure to make the contact position between insertion cone 201 and pipe 5 relatively sealed. The connecting hose 1 connects the two mounting rings 2. Since the connecting hose 1 can deform, the flexible connection of the connecting hose 1 allows the two pipes 5 to be connected to be completely aligned, allowing a certain range of misalignment, which further optimizes and facilitates the pipe connection operation for operators.

[0022] In order to achieve the purpose of fixing the fixing ring 4, the device adopts the following technical solution: a sealing rubber gasket 202 is fixedly connected to the outer wall of the insertion cone 201, a knob is fixedly connected to the end of the adjusting threaded shaft 204, several nuts 402 are embedded in the fixing ring 4, a fixing bolt 403 is installed in the internal thread of the nut 402, and a rubber gasket is fixedly connected to the lower end of the fixing bolt 403.

[0023] By replacing the insertion cone 201 with a sealing rubber gasket 202, which contacts the end edge of the pipe 5 to be connected, a certain amount of thrust is applied. The sealing rubber gasket 202 will deform to fill the gap at the connection, ensuring the sealing of the connection. The knob allows the operator to rotate and adjust the threaded shaft 204. The fixing bolt 403 is threaded inside the nut 402. Rotating the fixing bolt 403 can drive the rubber gasket to move. The rubber gasket contacts the surface of the pipe 5 to be connected, and then the fixing ring 4 can be fixed on the pipe 5 to be connected by friction.

[0024] The working principle and usage process of this utility model are as follows: When using the device, the connecting hose 1 needs to be folded to reduce the distance between the two mounting rings 2. The device is then placed between two pipes 5 to be connected. Next, the two fixing rings 4 are fitted onto the two pipes 5, and the insertion cone 201 is inserted into the pipe 5. Rotating the fixing bolt 403 moves the rubber pad, which then contacts the surface of the pipe 5. Friction is used to fix the fixing ring 4 onto the pipe 5. A knob is used to rotate the adjusting threaded shaft 204. Rotating the adjusting threaded shaft 204 moves the mounting ring 2 closer to the fixing ring 4, further driving the insertion cone 201 into the pipe 5. Applying pressure ensures that the sealing rubber pad 202 completely fits the end edge of the pipe 5, guaranteeing a tight seal at the connection between the insertion cone 201 and the pipe 5.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for sealing the connection of the inner wall of a pipe, comprising a connecting hose (1) and a pipe (5) to be connected, characterised in that: The connecting hose (1) is fixed with mounting rings (2) at both ends. The other side of the mounting ring (2) is fixed with a plug cone (201). The plug cone (201) is inserted into the end of the pipe (5) to be connected. A fixing ring (4) is sleeved on the pipe (5) to be connected. Threaded sleeves (401) are fixed on both sides of the fixing ring (4). Bearing seats (203) are fixed on both sides of the mounting ring (2). An adjusting threaded shaft (204) is rotatably installed in the bearing seat (203). The adjusting threaded shaft (204) is threadedly engaged with the fixing ring (4).

2. A conduit inner wall connection sealing device according to claim 1, characterised in that: A sealing rubber gasket (202) is fixed to the outer wall of the insertion cone (201), and a knob is fixed to the end of the adjusting threaded shaft (204).

3. A conduit inner wall connecting sealing device according to claim 1, characterized in that: The fixing ring (4) is fitted with several nuts (402), and the nuts (402) are threaded with fixing bolts (403).

4. A conduit inner wall connecting sealing device according to claim 3, characterized in that: A rubber pad is fixed to the lower end of the fixing bolt (403).

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