Expansion type glue injection joint for repairing flexible lining trenchless pipeline

Abstract

The utility model discloses an expansion type glue injection joint for repairing a flexible lining trenchless pipeline, and relates to the related field of pipelines, the expansion type glue injection joint comprises an expansion type glue injection joint, a detection mechanism and a feedback mechanism, the right end of the top of the expansion type glue injection joint is fixedly connected with the detection mechanism, and the bottom of the expansion type glue injection joint is provided with the feedback mechanism. The detection mechanism is arranged, the pressure in the air bag is detected through a pressure sensor, so that a worker can find the abnormal condition of the expansion type glue injection connector in time, the safety and stability of the expansion type glue injection connector are ensured, and the sensitivity of the pressure sensor to pressure change is improved through a metal film; and finally, the air bag can stably work for a long time in a high-temperature environment through the polyurethane layer, a feedback mechanism is arranged, the number of times of re-operation caused by misalignment or incomplete insertion is reduced through feedback of a control switch, and the efficiency of single-time operation is improved.

Description

Technical Field

[0001] The utility model relates to the field of pipelines, and particularly to an expandable glue injection joint for flexible lining trenchless pipeline repair. Background Technique

[0002] The expandable glue injection joint is a new type of pipeline repair material, which is mainly used for flexible lining trenchless pipelines. This product is usually made of soft materials with good elasticity and tensile strength. It can be connected to the pipeline physically or chemically without damaging the original pipeline. Since its shape can change with the pipeline curve, it is also called an "adaptive" or "intelligent" joint.

[0003] When the existing expandable glue injection joint is in use, it is difficult to monitor the internal pressure in real time, resulting in the staff failing to detect abnormal situations in the pipeline system in time, and serious consequences such as pipeline rupture and leakage occurring, thus making it difficult for the pipeline system to operate safely and stably; when the existing expandable glue injection joint is in use, it is difficult to ensure the accurate positioning of the joint through a limit switch, and the phenomenon of incomplete insertion may occur, requiring re-operation, which reduces the efficiency of a single operation. Content of the Utility Model

[0004] Therefore, in order to solve the above deficiencies, the utility model provides an expandable glue injection joint for flexible lining trenchless pipeline repair here.

[0005] The utility model is realized as follows. An expandable glue injection joint for flexible lining trenchless pipeline repair is constructed. The device includes an expandable glue injection joint. A detection mechanism is fixedly connected to the right end of the top of the expandable glue injection joint, and a feedback mechanism is arranged at the bottom of the expandable glue injection joint;

[0006] The detection mechanism includes a pressure sensor, which is fixedly connected to the right end of the top of the expandable glue injection joint; a metal film, the outer wall of the sensing head at the bottom of the pressure sensor is adhesively connected with the metal film; a first electromagnetic block, which is fixedly connected to the right end inside the expandable glue injection joint; a second electromagnetic block, and the second electromagnetic block is magnetically adsorbed inside the first electromagnetic block.

[0007] Preferably, the detection mechanism further includes an airbag, the airbag is adhesively connected to the inside of the second electromagnetic block; a polyurethane layer, and the polyurethane layer is adhesively connected to the inside of the airbag.

[0008] Preferably, the feedback mechanism includes a mounting shell provided at the bottom of the expandable glue injection joint; third electromagnetic blocks fixedly connected to the front and rear ends of the top of the mounting shell; an empty groove provided at the center of the top of the mounting shell; a mounting rod fixedly connected to the center of the inner bottom of the mounting shell; and three groups of fourth electromagnetic blocks arranged at equal intervals at the rear end of the mounting rod.

[0009] Preferably, the feedback mechanism further includes a sliding rod magnetically adsorbed to the fourth electromagnetic block; and a control switch fixedly connected to the top of the sliding rod.

[0010] Preferably, both the first electromagnetic block and the second electromagnetic block are electrically connected to an external current output device, and the sensing head at the bottom of the pressure sensor penetrates through the expandable glue injection joint, the first electromagnetic block, the second electromagnetic block, and the airbag and is connected to the inside thereof.

[0011] Preferably, both the third electromagnetic block and the fourth electromagnetic block are electrically connected to an external current output device, and the sliding rod penetrates through the top of the mounting rod and is slidably connected to the inside thereof.

[0012] Preferably, the control switch is electrically connected to an external display screen, and the top of the third electromagnetic block is magnetically adsorbed to the bottom of the expandable glue injection joint.

[0013] The present utility model has the following advantages: The present utility model provides an expandable glue injection joint for trenchless pipeline repair of flexible linings. Compared with the same type of equipment, the following improvements are made:

[0014] For the expandable glue injection joint for trenchless pipeline repair of flexible linings of the present utility model, a detection mechanism is provided. The pressure in the airbag is detected by a pressure sensor, enabling the staff to timely discover abnormal conditions of the expandable glue injection joint, ensuring the safety and stability of the expandable glue injection joint. Then, the sensitivity of the pressure sensor to pressure changes is improved by a metal film. Finally, the airbag can work stably for a long time in a high-temperature environment through a polyurethane layer.

[0015] For the expandable glue injection joint for trenchless pipeline repair of flexible linings of the present utility model, a feedback mechanism is provided. Through the feedback of the control switch, the number of times of re-operation required due to misalignment or incomplete insertion of the position is reduced, improving the efficiency of a single operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the expandable glue injection joint of the present utility model;

[0017] Figure 2 is a three-dimensional structural schematic diagram of the detection mechanism of the present utility model;

[0018] Figure 3 This is a three-dimensional exploded view of the detection mechanism of the present utility model;

[0019] Figure 4 This is a three-dimensional exploded view of the feedback mechanism of the present utility model.

[0020] Among them: the expansion type glue injection joint - 1, the detection mechanism - 2, the pressure sensor - 21, the metal film - 22, the first electromagnetic block - 23, the second electromagnetic block - 24, the airbag - 25, the polyurethane layer - 26, the feedback mechanism - 3, the installation shell - 31, the third electromagnetic block - 32, the empty slot - 33, the installation rod - 34, the fourth electromagnetic block - 35, the sliding rod - 36, the control switch - 37. Specific embodiments

[0021] The following combines the attached Figures 1 to 4 The principles and features of the present utility model will be described below. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model. In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. According to the following description and the claims, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model.

[0022] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] Embodiment 1:

[0025] Please refer to Figures 1 to 3 , an expansion type glue injection joint for trenchless pipeline repair of flexible linings of the present utility model, including an expansion type glue injection joint 1. The right end of the top of the expansion type glue injection joint 1 is fixedly connected with a detection mechanism 2, and a feedback mechanism 3 is arranged at the bottom of the expansion type glue injection joint 1;

[0026] The detection mechanism 2 includes a pressure sensor 21. The right end of the top of the expandable glue injection joint 1 is fixedly connected with the pressure sensor 21. A metal film 22 is adhesively connected to the outer wall of the sensing head at the bottom of the pressure sensor 21. The pressure sensor 21 is electrically connected to an external display screen.

[0027] A first electromagnet 23 is fixedly connected to the right end inside the expandable glue injection joint 1. A second electromagnet 24 is magnetically adsorbed inside the first electromagnet 23. The first electromagnet 23 and the second electromagnet 24 facilitate the installation of the airbag 25 and the polyurethane layer 26.

[0028] The second electromagnet 24 is adhesively connected with an airbag 25 inside. The airbag 25 is adhesively connected with a polyurethane layer 26 inside. Both the first electromagnet 23 and the second electromagnet 24 are electrically connected to an external current output device. The polyurethane layer 26 facilitates the airbag 25 to work stably for a long time in a high-temperature environment.

[0029] The sensing head at the bottom of the pressure sensor 21 penetrates through the expandable glue injection joint 1, the first electromagnet 23, the second electromagnet 24 and the airbag 25 and is connected to its interior.

[0030] Based on the working principle of an expandable glue injection joint for trenchless pipeline repair of flexible linings in Example 1:

[0031] First, when using this device, first place this device in the working area, and then connect the device to an external power supply to provide the power required for the operation of this device.

[0032] Second, when it is necessary to detect the pressure inside the expandable glue injection joint 1, drive the first electromagnet 23 and the second electromagnet 24 to work through an external current output device, so that the first electromagnet 23 and the second electromagnet 24 perform magnetic adsorption, and then install the airbag 25 and the polyurethane layer 26. When the expandable glue injection joint 1 is affected by air pressure fluctuations, the airbag 25 deforms accordingly, absorbing part of the energy, so that the force on the expandable glue injection joint 1 is relieved. At the same time, the pressure sensor 21 detects the pressure inside the airbag 25 and transmits the electrical signal to an external display screen, thereby indirectly monitoring the internal pressure of the expandable glue injection joint 1 in real time, enabling the staff to timely discover the abnormal situation of the expandable glue injection joint 1 and ensuring the safety and stability of the expandable glue injection joint 1.

[0033] Third, when the pressure sensor 21 is in use, a better strain response is provided through the metal film 22 to improve the sensitivity of the pressure sensor 21 to pressure changes. When the airbag 25 is in use, due to the good high-temperature resistance of the polyurethane layer 26, the airbag 25 can work stably for a long time in a high-temperature environment.

[0034] Example 2:

[0035] Please refer to Figure 4 Figure 4 , an expandable glue injection joint for trenchless pipeline repair with a flexible inner lining according to the present utility model. Compared with the first embodiment, this embodiment further includes: a feedback mechanism 3. The feedback mechanism 3 includes a mounting shell 31. The mounting shell 31 is provided at the bottom of the expandable glue injection joint 1. An empty slot is provided at the bottom of the expandable glue injection joint 1.

[0036] Both the front and rear ends of the top of the mounting shell 31 are fixedly connected with third electromagnetic blocks 32. An empty slot 33 is provided at the center of the top of the mounting shell 31. The third electromagnetic blocks 32 are convenient for magnetic adsorption with the bottom of the expandable glue injection joint 1.

[0037] A mounting rod 34 is fixedly connected to the center of the inner bottom of the mounting shell 31. Three groups of fourth electromagnetic blocks 35 are equidistantly arranged at the rear end inside the mounting rod 34. The fourth electromagnetic blocks 35 are convenient for driving the sliding rod 36 to move.

[0038] The fourth electromagnetic blocks 35 are magnetically adsorbed with the sliding rod 36. A control switch 37 is fixedly connected to the top of the sliding rod 36. Both the third electromagnetic blocks 32 and the fourth electromagnetic blocks 35 are electrically connected to an external current output device. The sliding rod 36 is convenient for driving the control switch 37 to move.

[0039] The sliding rod 36 penetrates through the top of the mounting rod 34 and is slidably connected to its interior. The control switch 37 is electrically connected to an external display screen. The top of the third electromagnetic block 32 is magnetically adsorbed with the bottom of the expandable glue injection joint 1.

[0040] In this embodiment:

[0041] First, when using the expandable glue injection joint 1, the third electromagnetic blocks 32 are driven to work by an external current output device, so that the third electromagnetic blocks 32 are magnetically adsorbed with the bottom of the expandable glue injection joint 1. Then, the fourth electromagnetic blocks 35 are driven to work by the external current output device, so that the sliding rod 36 moves upward in the mounting rod 34 under the magnetic influence of the fourth electromagnetic blocks 35. The sliding rod 36 drives the control switch 37 to move upward. When the pipeline contacts the control switch 37, through the feedback of the control switch 37, the number of times of re-operation due to misalignment or incomplete insertion of the position is reduced, and the efficiency of a single operation is improved;

[0042] Second, when the feedback mechanism 3 is not needed, the third electromagnetic blocks 32 are stopped from working by an external current output device, so that the third electromagnetic blocks 32 are separated from the bottom of the expandable glue injection joint 1. Finally, the bottom of the expandable glue injection joint 1 is sealed by an external sealing cover.

[0043] The utility model provides an expansion type glue injection joint for trenchless pipeline repair of flexible inner lining through improvement. A detection mechanism 2 is provided, and the pressure sensor 21 is used to detect the pressure in the airbag 25, so that the staff can timely discover the abnormal situation of the expansion type glue injection joint 1, ensure the safety and stability of the expansion type glue injection joint 1. Then, the metal film 22 is used to improve the sensitivity of the pressure sensor 21 to pressure changes. Finally, the polyurethane layer 26 enables the airbag 25 to work stably for a long time in a high-temperature environment. A feedback mechanism 3 is provided. Through the feedback of the control switch 37, the number of times of re-operation required due to misalignment or incomplete insertion is reduced, and the efficiency of a single operation is improved.

[0044] The above shows and describes the basic principles, main features and advantages of the utility model. Moreover, the standard parts used in the utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets and welding which are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An expandable glue injection joint for trenchless pipeline repair of flexible inner linings, comprising an expandable glue injection joint (1). A detection mechanism (2) is fixedly connected to the right end of the top of the expandable glue injection joint (1), and a feedback mechanism (3) is provided at the bottom of the expandable glue injection joint (1). It is characterized in that: The detection mechanism (2) includes: a pressure sensor (21), which is fixedly connected to the right end of the top of the expandable glue injection joint (1); a metal film (22), which is adhesively connected to the outer wall of the sensing head at the bottom of the pressure sensor (21); a first electromagnetic block (23), which is fixedly connected to the right end inside the expandable glue injection joint (1); and a second electromagnetic block (24), which is magnetically adsorbed inside the first electromagnetic block (23).

2. The expandable glue injection joint for trenchless pipeline repair with a flexible inner lining according to claim 1, characterized in that: The detection mechanism (2) further includes: an airbag (25), which is adhesively connected to the inside of the second electromagnetic block (24); and a polyurethane layer (26), which is adhesively connected to the inside of the airbag (25).

3. The expandable glue injection joint for trenchless pipeline repair with a flexible inner lining according to claim 2, characterized in that: The feedback mechanism (3) includes: a mounting shell (31), which is provided at the bottom of the expandable glue injection joint (1); third electromagnetic blocks (32), which are fixedly connected to the front and rear ends of the top of the mounting shell (31); an empty groove (33), which is provided at the center of the top of the mounting shell (31); a mounting rod (34), which is fixedly connected to the center of the inner bottom of the mounting shell (31); and fourth electromagnetic blocks (35), which are arranged in three groups at equal intervals at the rear end inside the mounting rod (34).

4. The expandable glue injection joint for trenchless pipeline repair with a flexible inner lining according to claim 3, characterized in that: The feedback mechanism (3) further includes: a sliding rod (36), which is magnetically adsorbed to the fourth electromagnetic block (35); and a control switch (37), which is fixedly connected to the top of the sliding rod (36).

5. The expandable glue injection joint for trenchless pipeline repair with a flexible inner lining according to claim 4, characterized in that: Both the first electromagnetic block (23) and the second electromagnetic block (24) are electrically connected to an external current output device, and the sensing head at the bottom of the pressure sensor (21) penetrates through the expandable glue injection joint (1), the first electromagnetic block (23), the second electromagnetic block (24), and the airbag (25) and is connected to its interior.

6. The expandable glue injection joint for trenchless pipeline repair with a flexible inner lining according to claim 5, characterized in that: Both the third electromagnetic block (32) and the fourth electromagnetic block (35) are electrically connected to an external current output device, and the sliding rod (36) penetrates through the top of the mounting rod (34) and is slidably connected to its interior.

7. The expandable glue injection joint for trenchless pipeline repair with a flexible inner lining according to claim 6, characterized in that: The control switch (37) is electrically connected to an external display screen, and the top of the third electromagnetic block (32) is magnetically adsorbed to the bottom of the expandable glue injection joint (1).

Images