Pipeline leaking stoppage device

Abstract

The utility model discloses a pipeline leaking stoppage device which comprises a hand wheel, a positioning support, a movable support, a swing arm, a lead screw and a sealing cover, the middle of the positioning support is meshed with the lead screw, one end of the lead screw is fixedly connected with the hand wheel, the other end of the lead screw is rotatably connected with the middle of the movable support, and sliding pins are further arranged on the two sides of the movable support. Swing arms are symmetrically hinged to the two sides of the positioning support, sliding grooves extending towards the two ends are further formed in the middles of the swing arms, the sliding pins on the two sides of the movable support slide in the sliding grooves in the middles of the swing arms, and sealing covers are further hinged to the outer ends of the swing arms. The sealing cover with the inner diameter smaller than the outer diameter of the pipe body wraps the cracking point, the rubber sealing layer on the contact face of the sealing cover and the pipeline extrudes the pipe body for sealing, and therefore plugging of the cracking leakage point of the pipeline is completed. The swing arms on the two sides get close to each other by rotating the hand wheel, the close swing arms drive the sealing covers on the two sides to wrap and plug the pipeline, and the whole operation process is very simple and convenient without using other tools.

Description

Technical Field

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

[0002] In commonly used gas and oil supply pipelines, leaks and ruptures frequently occur due to factors such as medium pressure or external damage. Existing solutions mostly involve closing valves and replacing the damaged pipeline. However, closing valves interrupts pipeline transport. Therefore, temporary leak-sealing devices are used first. However, existing leak-sealing devices can only seal small leaks in the pipeline and are unusable when the pipe body is cracked. Therefore, a pipeline leak-sealing device has been designed to solve the above problems. Utility Model Content

[0003] In view of the shortcomings of existing pipeline leak sealing and repair technologies, the purpose of this utility model is to provide a pipeline leak sealing device with advantages such as sealing leaks caused by pipe cracks and easy operation and installation.

[0004] To achieve the above objectives, the present invention employs the following technical solution: a pipe sealing device, comprising a handwheel, a positioning bracket, a movable bracket, a swing arm, a lead screw, and a sealing cover. The positioning bracket has a lead screw engaged in the middle, one end of the lead screw is fixedly connected to a handwheel, and the other end of the lead screw is rotatably connected to the middle of the movable bracket. The movable bracket also has sliding pins on both sides, and the positioning bracket has swing arms symmetrically hinged on both sides. The swing arms also have grooves extending to both ends in the middle, and the sliding pins on both sides of the movable bracket slide within the grooves in the middle of the swing arms. The outer end of the swing arms is also hinged to a sealing cover.

[0005] Preferably, the positioning bracket and the movable bracket slide vertically relative to each other under the restriction of the two side swing arms. When the positioning bracket and the movable bracket are close together, the two side swing arms open, and when the positioning bracket and the movable bracket are far apart, the two side swing arms close together.

[0006] Preferably, the distance between the hinged swing arms on both sides of the positioning bracket is d1, and the distance between the sliding pins on both sides of the movable bracket is d2, where d2>d1;

[0007] Preferably, the sealing cover is a semi-circular ring-shaped cover, and the contact surface between the sealing cover and the pipe also has a rubber sealing layer, which is used to squeeze the pipe body for sealing;

[0008] More preferably, the inner diameter of the sealing cover is smaller than the outer diameter of the pipe, and the width of the sealing cover is d3, where d3 > 100 mm;

[0009] The beneficial effects of this utility model are: 1. By covering the crack point with a sealing cover whose inner diameter is smaller than the outer diameter of the pipe, the rubber sealing layer of the sealing cover and the pipe contact surface is squeezed to seal the pipe body, thereby completing the sealing of the cracked and leaking point of the pipe; 2. By turning the handwheel, the two swing arms on both sides are brought closer together, and the swing arms that are brought closer together drive the sealing covers on both sides to cover and seal the pipe. The whole operation process is very simple and does not require the use of other tools. Attached Figure Description

[0010] Figure 1 A cross-sectional structural view of the leak-sealing preparation state of this utility model;

[0011] Figure 2 This is a cross-sectional structural view of the leak-sealing state of this utility model;

[0012] Figure 3 This is a three-dimensional structural view of the sealing cover of this utility model. Detailed Implementation

[0013] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0014] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0015] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "equipped with," and "set up" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] Please see Figures 1 to 3 The embodiments of this utility model include:

[0017] A pipe sealing device includes a handwheel 1, a positioning bracket 2, a movable bracket 3, a swing arm 4, a lead screw 5, and a sealing cover 6. The positioning bracket 2 is engaged with the lead screw 5 in the middle. One end of the lead screw 5 is fixedly connected to the handwheel 1, and the other end of the lead screw 5 is rotatably connected to the middle of the movable bracket 3. The movable bracket 3 also has sliding pins 31 on both sides. The positioning bracket 2 is symmetrically hinged with the swing arm 4 on both sides. The middle of the swing arm 4 also has a sliding groove 41 extending to both ends. The sliding pins 31 on both sides of the movable bracket 3 slide in the sliding groove 41 in the middle of the swing arm 4. The outer end of the swing arm 4 is also hinged with the sealing cover 6.

[0018] The positioning bracket 2 and the movable bracket 3 slide vertically relative to each other under the restriction of the two side swing arms 4. When the positioning bracket 2 and the movable bracket 3 are close together, the two side swing arms 4 open. When the positioning bracket 2 and the movable bracket 3 are far apart, the two side swing arms 4 close together.

[0019] The distance between the swing arms 4 hinged on both sides of the positioning bracket 2 is d1, and the distance between the sliding pins 31 on both sides of the movable bracket 3 is d2, where d2>d1;

[0020] The sealing cover 6 is a semi-circular ring-shaped cover, and the contact surface between the sealing cover 6 and the pipe also has a rubber sealing layer 7, which is used to squeeze the pipe body to seal it.

[0021] The inner diameter of the sealing cover 6 is smaller than the outer diameter of the pipe, and the width of the sealing cover 6 is d3, where d3>100mm;

[0022] With the above settings, its specific working principle in actual operation is as follows:

[0023] When a crack appears in the pipe, this device will be used as follows: Figure 1 The state is engaged with the outer wall of the pipe. Then, rotate the handwheel 1 clockwise. The handwheel 1 drives the lead screw 5 to rotate simultaneously. Since the lead screw 5 is engaged with the positioning bracket 2, the lead screw 5 extends downward during rotation, thereby driving the movable bracket 3 to move downward and away from the positioning bracket 2. During the downward movement of the movable bracket 3, the swing arms 4 move closer together under the action of the sliding pins 31 on both sides of the movable bracket 3. The moving swing arms 4 drive the sealing covers 6 on both sides to cover the pipe. When the pipe is completely covered... Figure 2 In the state shown, the rubber sealing layer 7 at the contact surface between the sealing cover 6 and the pipe squeezes the pipe body to seal it, thereby completing the sealing of the cracked and leaking point of the pipe.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pipe sealing device, characterized in that, The device includes a handwheel, a positioning bracket, a movable bracket, a swing arm, a lead screw, and a sealing cover. The positioning bracket has a lead screw engaged in its middle section. One end of the lead screw is fixedly connected to the handwheel, and the other end of the lead screw is rotatably connected to the middle section of the movable bracket. The movable bracket also has sliding pins on both sides. The positioning bracket has swing arms symmetrically hinged on both sides. The middle section of the swing arm has a sliding groove extending to both ends. The sliding pins on both sides of the movable bracket slide within the sliding groove in the middle section of the swing arm. The outer end of the swing arm is also hinged to a sealing cover.

2. The pipe sealing device according to claim 1, characterized in that, The positioning bracket and the movable bracket slide vertically relative to each other under the constraint of the two side swing arms. When the positioning bracket and the movable bracket are close together, the two side swing arms open. When the positioning bracket and the movable bracket are far apart, the two side swing arms close together.

3. The pipe sealing device according to claim 1, characterized in that, The distance between the hinged swing arms on both sides of the positioning bracket is d1, and the distance between the sliding pins on both sides of the movable bracket is d2, where d2>d1.

4. A pipe sealing device according to claim 1, characterized in that, The sealing cover is a semi-circular ring-shaped cover, and the contact surface between the sealing cover and the pipe also has a rubber sealing layer, which is used to squeeze the pipe body to seal it.

5. A pipe sealing device according to claim 4, characterized in that, The inner diameter of the sealing cover is smaller than the outer diameter of the pipe, and the width of the sealing cover is d3, where d3 > 100 mm.

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