Non-excavation type pipeline local point-shaped repairing device

Abstract

The utility model belongs to the technical field of pipeline repairing, and discloses a non-excavation type pipeline local point-shaped repairing device which comprises two moving device bodies which are symmetrically distributed, the middle portions of the two moving device bodies are connected with an air conveying pipe in a penetrating mode, an air bag is installed outside the air conveying pipe, a fine adjustment structure is arranged outside the air bag, and the fine adjustment structure is connected with the air conveying pipe in a penetrating mode. The fine adjustment structure comprises a connecting disc installed at the left end of the right mover body and a first limiting sleeve installed at the right end of the left mover body, through the design of the fine adjustment structure, after the mover bodies convey the air bag to a preset position, a servo motor is started, the servo motor operates to drive a first transmission wheel to rotate, and the first transmission wheel is driven to rotate; the first chain and the second chain are driven to rotate synchronously, the transmission process further promotes the second transmission wheel and the two threaded rods to rotate, and during rotation of the threaded rods, due to the characteristic of threaded fit between the threaded rods and the threaded sleeves, the rotating motion of the threaded rods is converted into axial displacement of the threaded sleeves.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline repair technical field especially a kind of non-excavation type pipeline local point repair device. BACKGROUND

[0002] Pipeline repair refers to damaged, leaking conveying pipeline, using various technologies to restore normal use function, its repair technology mainly covers two kinds of outer anticorrosive coating repair and internal repair, point resin curing repair technology, as a method of non-excavation partial lining repair of drainage pipeline, its general principle is similar to CIPP integral repair, the difference is that, the technology only locally adds an inner lining, to play the role of leakage stop, local reinforcement of old pipeline structure etc.

[0003] In the process of realizing the present application, the inventor found that at least the following problems exist in the prior art: in the prior art, the air bag is inflated to fit the inner wall of the pipeline, according to the preliminary survey data, the air bag is driven by the mover to travel in the pipeline, and after positioning to the damaged position of the pipeline, due to the shape of the damaged part and the complex surrounding environment, the position of the air bag needs to be fine-tuned to ensure that the repair material uniformly covers and closely fits the damaged area, but at this time the mover cannot perform fine-tuning driving because it operates according to the pre-planned path and pre-set program, and stops at the pre-set position, and the next start is easy to produce large deviation due to step length and precision limitation, therefore most of the existing devices do not have fine-tuning function for the air bag.

[0004] Therefore, the above technical problems need to be solved. UTILITY MODEL CONTENT

[0005] In order to overcome the shortcomings of the prior art, the basic technical scheme of the utility model is as follows: a non-excavation type pipeline local point repair device, comprising two symmetrically distributed mover bodies, a gas conveying pipe is connected through the middle part of the two mover bodies, an air bag is installed outside the gas conveying pipe, and a fine-tuning structure is arranged outside the air bag.

[0006] The fine-tuning structure comprises a connecting disc installed on the left end of the right mover body, a first limiting sleeve installed on the right end of the left mover body, and a connecting disc installed on both ends of the air bag, a second limiting sleeve is slidably connected to the inner wall of the first limiting sleeve, and a third limiting sleeve is slidably connected to the inner wall of the second limiting sleeve.

[0007] Preferably, the outer part of the connecting disc on the right side is provided with two symmetrically distributed abutting blocks, and the inner wall of the third limiting sleeve is provided with an abutting groove matched with the abutting blocks.

[0008] Preferably, the right end of the connecting disc on the right side is rotatably connected to two threaded sleeves through bearings, and the inner wall of the two threaded sleeves is screwedly connected to a threaded rod.

[0009] Preferably, a servo motor is mounted on the right side of the right side surface of the mobile body on the right side, and a first transmission wheel is fixedly connected to the output end of the servo motor.

[0010] Preferably, a first chain and a second chain are meshingly connected to the outside of the first transmission wheel.

[0011] Preferably, a second transmission wheel is fixedly connected to the end of the two threaded rods away from the threaded sleeve, and the inner walls of the first chain and the second chain are meshingly connected between the two second transmission wheels.

[0012] The utility model discloses the beneficial effects are:

[0013] Through the design of the fine adjustment structure, when the mobile body transports the air bag to the predetermined position, the servo motor is started, the servo motor is operated, the first transmission wheel is driven to rotate, and then the first chain and the second chain are synchronously rotated, and the transmission process further promotes the rotation of the second transmission wheel and the two threaded rods. During the rotation of the threaded rod, due to the threaded cooperation between the threaded rod and the threaded sleeve, the rotation of the threaded rod is converted into the axial displacement of the threaded sleeve. One end of the threaded sleeve is rotatably connected to one of the connecting discs through a bearing. This connection mode makes the threaded sleeve not transmit the rotation to the connecting disc when rotating, but only drives the connecting disc to translate in the axial direction.

[0014] At the same time, the connecting disc synchronously drives the air bag and the other connecting disc to move in the same direction during the axial translation. At this time, the abutting block carefully designed on the connecting disc is in precise contact with the abutting groove of the corresponding structure, and the third limiting cylinder is pushed to linearly slide, thereby driving the second limiting sleeve to synchronously slide, so as to realize the fine adjustment of the position of the air bag. When the air bag moves to the required position, the air bag is inflated by the gas pipe, so that the air bag expands. Since the outer wall of the air bag is coated with a resin layer, the pressure generated by the expansion of the air bag can tightly press the resin layer on the inner wall of the pipeline. After being heated and cooled by the heater, the effect of repairing the pipeline can be realized. Compared with the prior art, by fine adjusting the position of the air bag, the position of the air bag can be accurately adjusted according to the actual damage situation and position of the pipeline, so that the resin layer can accurately cover the damaged part, greatly improving the precision and effect of pipeline repair. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic of the embodiment one in the utility model Figure 1 ;

[0016] Figure 2 It is the whole section structure schematic of the utility model;

[0017] Figure 3 It is the whole structure schematic of the utility modelFigure 2 ;

[0018] Figure 4 This is a schematic diagram of the overall structure of the present utility model. Figure 3 ;

[0019] Figure 5 This is a schematic diagram of the fine-tuning structure of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Mobility unit body; 2. Air supply pipe; 3. Airbag; 4. Fine-tuning structure; 41. Connecting plate; 42. First limiting sleeve; 43. Limiting plate; 44. Second limiting sleeve; 45. Third limiting sleeve; 46. Abutment block; 47. Threaded sleeve; 48. Servo motor; 49. First transmission wheel; 491. First chain; 492. Second chain; 493. Second transmission wheel. Detailed Implementation

[0022] The following will be combined with the appendix Figure 1 To be continued Figure 5 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] It should be noted that, in the embodiments of this utility model, the directions shown in the accompanying drawings shall prevail, such as front and back. Figure 1 For the sake of accuracy, the specific details should be as follows: Figure 1 The left side is the front. Figure 1 The right side is the rear; at the same time, as Figure 2 As shown, the horizontal direction is roughly defined as left and right, and the vertical direction is defined as up and down. If a specific orientation changes, the directional indication will also change accordingly.

[0024] Example 1

[0025] Please see Figure 1 - Figure 5 As shown, this embodiment provides a trenchless pipeline local point repair device, including two symmetrically distributed moving body 1s. A gas supply pipe 2 is connected through the middle of the two moving body 1s. The moving body 1s are existing technology and are mainly used to move on the inner wall of the pipeline, which will not be elaborated on further. An air bag 3 is installed on the outside of the gas supply pipe 2. The gas supply pipe 2 is connected to an external air pump to supply air to the gas supply pipe 2. A fine adjustment structure 4 is provided on the outside of the air bag 3.

[0026] The fine-tuning structure 4 includes a connecting plate 41 installed at the left end of the right mobilizer body 1 and a first limiting sleeve 42 installed at the right end of the left mobilizer body 1, as well as limiting plates 43 installed at both ends of the airbag 3. The inner wall of the first limiting sleeve 42 is slidably connected to a second limiting sleeve 44, and the inner wall of the second limiting sleeve 44 is slidably connected to a third limiting sleeve 45.

[0027] This invention addresses the issue that in existing technologies, airbags 3 are inflated to conform to the inner wall of a pipe, and a moving device is driven to travel within the pipe based on preliminary survey data. However, once the damaged location is identified, the complex shape and surrounding environment necessitate fine-tuning of the airbag 3 to ensure uniform and tight coverage of the repair material. While the moving device follows a planned path and preset program, stopping at the preset position and restarting is prone to significant deviations due to step size and accuracy limitations. Consequently, most existing devices lack the fine-tuning function for the airbag 3. Therefore, this invention addresses this issue by designing a fine-tuning structure 4. After the moving device body 1 transports the airbag 3 to the predetermined position, the servo motor 48 is activated. When the motor 48 operates, it drives the first transmission wheel 49 to rotate, which in turn drives the first chain 491 and the second chain 492 to rotate synchronously. This transmission process further causes the second transmission wheel 493 and the two threaded rods to rotate. During the rotation of the threaded rod, due to the threaded fit between the threaded rod and the threaded sleeve 47, the rotational motion of the threaded rod is converted into the axial displacement of the threaded sleeve 47. One end of the threaded sleeve 47 is rotatably connected to one of the connecting discs 41 via a bearing. This connection method ensures that when the threaded sleeve 47 rotates, it does not transmit the rotation to the connecting disc 41, but only drives the connecting disc 41 to translate in the axial direction.

[0028] Meanwhile, during the axial translation of the connecting plate 41, it simultaneously drives the airbag 3 and another connecting plate 41 to move in the same direction. At this time, the carefully designed abutting block 46 on the connecting plate 41 makes precise contact with the abutting groove of the corresponding structure, and pushes the third limiting cylinder to slide linearly, thereby driving the second limiting sleeve 44 to slide synchronously, realizing the fine adjustment of the position of the airbag 3. When the airbag 3 moves to the required position, air is injected into the airbag 3 through the air supply pipe 2, causing the airbag 3 to expand. Since the outer wall of the airbag 3 is coated with a resin layer, the pressure generated by the expansion of the airbag 3 can tightly press the resin layer onto the inner wall of the pipe. After heating and cooling by the heater, the pipe can be repaired. Compared with the existing technology, by finely adjusting the position of the airbag 3, the position of the airbag 3 can be precisely adjusted according to the actual damage and location of the pipe, ensuring that the resin layer can accurately cover the damaged part, which greatly improves the accuracy and effect of pipe repair.

[0029] Example 2

[0030] like Figure 4 - Figure 5As shown, the outer part of the limiting disc 43 on the right side is provided with two abutting blocks 46 arranged symmetrically, the inner wall of the third limiting sleeve 45 is provided with abutting grooves matched with the abutting blocks 46, the right end of the limiting disc 43 on the right side is rotatably connected with two threaded sleeves 47 through bearings, the inner walls of the two threaded sleeves 47 are threadedly connected with threaded rods, the right side surface of the mover body 1 on the right side is provided with a servo motor 48, the output end of the servo motor 48 is fixedly connected with a first transmission wheel 49, the outer part of the first transmission wheel 49 is meshingly connected with a first chain 491 and a second chain 492, the ends of the two threaded rods away from the threaded sleeves 47 are fixedly connected with second transmission wheels 493, and the inner walls of the first chain 491 and the second chain 492 are meshingly connected with the two second transmission wheels 493.

[0031] It is worth noting that the servo motor 48 drives the first transmission wheel 49 to rotate, and then drives the first and second chains 492 to rotate, and then drives the second transmission wheels 493 and the threaded rods to rotate, and then converts the rotary motion into axial displacement through the threaded cooperation between the threaded rods and the threaded sleeves 47, and then drives the connecting disc 41 to translate, and when the connecting disc 41 translates, the abutting blocks 46 thereon cooperate with the abutting grooves in the inner wall of the third limiting sleeve 45 to push the third limiting sleeve 45 and the second limiting sleeve 44 to slide, so as to realize the fine adjustment of the position of the air bag 3. This mechanical transmission mode can accurately control the displacement amount, accurately adjust the position of the air bag 3 according to the actual damage situation and position of the pipeline, and ensure that the air bag 3 can accurately reach the damaged position.

[0032] Working steps:

[0033] First, the external air pump supplies air for the air bag 3 through the air pipe 2, and the device is put into the pipeline, and the device is moved in the pipeline wall by the mover body 1, so that the air bag 3 is transported to the predetermined position determined by the preliminary survey, when the predetermined position is reached, the servo motor 48 is started, the servo motor 48 is operated, the first transmission wheel 49 is driven to rotate, the first transmission wheel 49 drives the first chain 491 and the second chain 492 to rotate synchronously, the rotation process promotes the second transmission wheel 493 and the two threaded rods to rotate, due to the thread cooperation characteristics between the threaded rod and the threaded sleeve 47, the rotation of the threaded rod is converted into the axial displacement of the threaded sleeve 47, since one end of the threaded sleeve 47 is rotatably connected with the connecting disc 41 through the bearing, when the threaded sleeve 47 rotates, only the connecting disc 41 is translated along the axial direction, finally, the connecting disc 41 is translated, the air bag 3 and the other connecting disc 41 are synchronously moved in the same direction, at this time, the abutting block 46 on the connecting disc 41 is in precise contact with the abutting groove in the inner wall of the third limiting sleeve 45, the third limiting sleeve 45 is pushed to slide linearly, and then the second limiting sleeve 44 is synchronously slid, the position of the air bag 3 is finely adjusted, after the air bag 3 is accurately positioned to the required position, the air bag 3 is inflated by the air pipe 2, the air bag 3 expands to tightly press the resin layer on the inner wall of the pipeline, and then the heater is heated and cooled, the pipeline is repaired.

[0034] According to the disclosure and teaching of the above description, those skilled in the art of the present application can also change and modify the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the present application.

Claims

1. A trenchless pipe spot repair device, comprising two mobile bodies (1) that are symmetrically distributed, characterized in that: The middle part of two mobile device bodies (1) is connected with a gas conveying pipe (2), the outer part of the gas conveying pipe (2) is provided with an air bag (3), the outer part of the air bag (3) is provided with a fine adjustment structure (4); The fine adjustment structure (4) comprises a connecting disc (41) installed at the left end of the right mobile device body (1), a first limiting sleeve (42) installed at the right end of the left mobile device body (1), and a limiting disc (43) installed at both ends of the air bag (3), the inner wall of the first limiting sleeve (42) is slidably connected with a second limiting sleeve (44), and the inner wall of the second limiting sleeve (44) is slidably connected with a third limiting sleeve (45).

2. A trenchless, in-place pipe spot repair apparatus as defined in claim 1, wherein: The outer part of the limiting disc (43) on the right side is provided with two abutting blocks (46) which are symmetrically distributed, and the inner wall of the third limiting sleeve (45) is provided with abutting grooves which are matched with the abutting blocks (46).

3. A trenchless, in-place pipe spot repair apparatus as defined in claim 2, wherein: The right end of the limiting disc (43) on the right side is rotatably connected with two threaded sleeves (47) through bearings, and the inner wall of the two threaded sleeves (47) is threadedly connected with threaded rods.

4. A trenchless, in-place pipe spot repair apparatus as defined in claim 3 wherein: A servo motor (48) is installed on the right side of the mobile device body (1) on the right side, and the output end of the servo motor (48) is fixedly connected with a first transmission wheel (49).

5. A trenchless, in-place pipe spot repair apparatus as defined in claim 4, wherein: The outer part of the first transmission wheel (49) is meshingly connected with a first chain (491) and a second chain (492).

6. A trenchless, in-place pipe spot repair apparatus as defined in claim 5, wherein: The ends of the two threaded rods away from the threaded sleeves (47) are fixedly connected with second transmission wheels (493), and the inner walls of the first chain (491) and the second chain (492) are meshingly connected with the two second transmission wheels (493).

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