Pipeline inner wall expansion equipment for trenchless repair

Abstract

The utility model relates to the technical field of pipeline inner wall expansion equipment for trenchless repair, and discloses pipeline inner wall expansion equipment for trenchless repair, which comprises a supporting column, one end of the supporting column is sleeved with a movable sleeve, and the other end of the supporting column is fixedly connected with a supporting disc. The surface of the supporting disc is rotationally connected with four sets of rotating rods, and one side of each rotating rod is fixedly connected with a connecting assembly. According to the pipeline inner wall expansion equipment for trenchless repair, through the arrangement of the buffer assembly, when pipeline inner wall expansion repair is conducted, a lifting hydraulic column is started, a top plate is driven to ascend and descend, then the top plate extrudes a pipeline collapse position, reverse pressure is generated at the pipeline collapse position, the buffer hydraulic column is extruded for buffering shrinkage, and then a spring is stressed and deformed to generate rebound force; therefore, the pressure buffering effect is achieved, pipeline damage caused by pipeline aging and fragility and direct lifting pressurization of the lifting hydraulic column is avoided, and the safety of the pipeline inner wall expansion equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline inner wall expansion equipment for trenchless repair, in particular to a pipeline inner wall expansion equipment for trenchless repair. Background Art

[0002] Pipeline repair refers to the use of various technologies to restore the normal use function of damaged and leaking transmission pipelines. Its repair includes two technologies: external anti-corrosion layer repair and internal repair. After years of operation, various pipelines will inevitably produce various damages and leaks due to corrosion, poor operation management and other reasons, causing serious economic losses. However, replacing new pipelines across the line not only requires a large amount of work, but also requires a large amount of money and a long project period. A pipe inner wall expansion device for non-excavation repair is usually a tool used to repair and reinforce the inside of the pipeline. This type of equipment is usually used for underground pipelines or pipeline systems, without the need to excavate the ground, thereby reducing interference with the surrounding environment. This type of pipe inner wall expansion device for trenchless repair is designed to reduce damage to the surface and improve the efficiency and feasibility of pipeline repair. This type of equipment is usually used in the maintenance and repair of underground pipeline systems such as urban pipe networks, sewers, and gas pipelines. Therefore, a pipe inner wall expansion device for trenchless repair is needed to facilitate the convergence of the rollers and the effect of buffering the pressure of the hydraulic column.

[0003] A pipe inner wall expansion device for non-excavation repair of municipal drainage pipes disclosed in the publication number CN210510736U includes a cylinder, a travel wheel, a hydraulic cylinder, a moving block, a connecting rod and a top block, characterized in that: both ends of the cylinder are provided with a bearing plate, and a limited position groove is provided on the cylinder, the travel wheel is placed in the fixed groove, a connecting shaft is provided on the travel wheel, and the connecting shaft is connected to the bearing plate, the hydraulic cylinder is provided on the bearing plate, the moving block is provided in the cylinder, the bottom end of the connecting rod is connected to the positioning plate through a pin shaft, and a connecting plate is provided on the top block. The utility model sets the top block as an arc structure, reduces the contact area between the top block and the collapsed position of the municipal drainage pipe, enhances the positioning pressure on the collapsed position of the municipal drainage pipe, facilitates the top block to lift the collapsed position of the municipal drainage pipe, improves the repair efficiency and repair quality of the collapsed position of the municipal drainage pipe, and reduces the labor intensity of the operator.

[0004] However, the inner wall expansion equipment for trenchless repair of municipal drainage pipes has the following disadvantages: when encountering a pipe collapse, it is not convenient to retract the rollers to avoid the reduction of the pipe collapse aperture, and the rollers block the repair inside the pipe; at the same time, when performing pipe inner wall expansion repair, it is not convenient to buffer the pressure of the lifting hydraulic column to avoid aging and fragility of the pipe, and the lifting hydraulic column directly lifts and pressurizes, causing damage to the pipe. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem solved by the utility model is to provide a non-excavation pipe inner wall expansion device which is highly practical, can be simply operated and has a relatively simple structure, thereby solving the problem of inconvenience in contracting the roller and buffering the hydraulic column pressure raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a pipe inner wall expansion device for trenchless repair, comprising a support column, one end of the support column is sleeved with a movable sleeve, the other end of the support column is fixedly connected to a support plate, the surface of the support plate is rotatably connected to four groups of rotating rods, one side of the rotating rod is fixedly connected to a connecting assembly, the interior of the movable sleeve is slidably connected to a stretching assembly, the surface of the support column is fixedly connected to four groups of lifting hydraulic columns, the top of the lifting hydraulic column is fixedly connected to a connecting plate, and the top of the connecting plate is fixedly connected to a buffer assembly.

[0009] As a further solution of the utility model, the connecting assembly includes a movable bolt fixedly connected to one side of the rotating rod, one end of the movable bolt is rotatably connected to the connecting rod, and one end of the connecting rod is rotatably connected to the rotating bolt, and the rotating bolt facilitates the rotation of the connecting rod.

[0010] As a further solution of the utility model, the stretching assembly includes a stretching disk slidably connected to the inside of the movable sleeve, the internal thread of the stretching disk is connected to a threaded rod, one end of the threaded rod is fixedly connected to a driving motor, and the threaded rod facilitates the extension and retraction of the stretching disk.

[0011] As a further solution of the utility model, the buffer assembly includes a buffer hydraulic column fixedly connected to the top of the connecting plate, and a spring is sleeved on the surface of the buffer hydraulic column to facilitate buffering.

[0012] As a further solution of the utility model, a top plate is fixedly connected to the top of the buffer hydraulic column, so that the driving motor can provide power.

[0013] As a further solution of the utility model, a roller is rotatably connected to the top of the rotating rod, and a fixing tube is fixedly connected to one side of one group of the supporting plates, and the fixing tube is convenient for fixing the camera.

[0014] As a further solution of the utility model, a camera is fixedly connected to the interior of the fixed tube, and the surface of the movable sleeve is provided with four groups of open grooves adapted to the connecting rod, and the open grooves facilitate the movement of the connecting rod.

[0015] (III) Beneficial effects

[0016] The utility model provides a pipeline inner wall expansion device for trenchless repair, which has the following beneficial effects:

[0017] 1. The pipeline inner wall expansion device for trenchless repair, through the setting of the connecting component and the stretching component, when encountering a pipeline collapse, due to the smaller diameter of the pipeline collapse, the driving motor is started to drive the threaded rod to rotate, and then the threaded rod is used to push the stretching disk, which is extended and retracted on the surface of the threaded rod, and then the connecting rod is pulled to rotate on the surface of the rotating bolt and the movable bolt, so that the rotating rod rotates inwardly inside the support plate and converges, thereby achieving the effect of converging the roller, making it convenient for the top plate to reach the bottom of the pipeline collapse, avoiding the smaller diameter of the pipeline collapse, and preventing the roller from blocking the repair in the pipeline, thereby improving the convenience of the pipeline inner wall expansion device.

[0018] 2. The pipeline inner wall expansion equipment for trenchless repair, through the setting of the buffer component, starts the lifting hydraulic column to drive the top plate to lift and lower when the pipeline inner wall expansion repair is carried out, and then the top plate squeezes the collapsed part of the pipeline, so that reverse pressure is generated at the collapsed part of the pipeline, and the squeezing and buffering hydraulic column buffers the contraction, and then the spring is deformed by force to produce rebound force, thereby achieving the effect of buffering pressure, avoiding the aging and fragility of the pipeline, and the lifting hydraulic column directly lifting and pressurizing, causing pipeline damage, thereby improving the safety of the pipeline inner wall expansion equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the connecting component and the stretching component of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the buffer component of the utility model.

[0023] In the figure: 1. Support column; 2. Movable sleeve; 3. Support plate; 4. Rotating rod; 5. Connecting assembly; 501. Movable bolt; 502. Connecting rod; 503. Rotating bolt; 6. Stretching assembly; 601. Stretching plate; 602. Threaded rod; 7. Lifting hydraulic column; 8. Connecting plate; 9. Buffer assembly; 901. Buffer hydraulic column; 902. Spring; 10. Top plate; 11. Driving motor; 12. Roller; 13. Fixed tube; 14. Camera. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4 The utility model provides a technical solution: a pipeline inner wall expansion device for non-excavation repair, comprising a support column 1, one end of the support column 1 is sleeved with a movable sleeve 2, the other end of the support column 1 is fixedly connected to a support plate 3, the surface of the support plate 3 is rotatably connected with four groups of rotating rods 4, one side of the rotating rod 4 is fixedly connected with a connecting component 5, through the setting of the connecting component 5 and the stretching component 6, the effect of converging the roller 12 is achieved, so that the top plate 10 is convenient to reach the bottom of the pipeline collapse, and the pipeline collapse aperture is prevented from becoming smaller. The roller 12 blocks the repair in the pipeline, thereby improving the convenience of the pipeline inner wall expansion device, the inner sliding connection of the movable sleeve 2 is connected with the stretching component 6, the surface of the support column 1 is fixedly connected with four groups of lifting hydraulic columns 7, the top of the lifting hydraulic column 7 is fixedly connected with a connecting plate 8, and the top of the connecting plate 8 is fixedly connected with a buffer component 9. Through the setting of the buffer component 9, when the pipeline inner wall is expanded and repaired, the effect of buffering pressure is achieved, and the pipeline aging and fragility are avoided. The lifting hydraulic column 7 is directly lifted and pressurized to cause pipeline damage, thereby improving the safety of the pipeline inner wall expansion device;

[0026] The connecting assembly 5 includes a movable bolt 501 fixedly connected to one side of the rotating rod 4, one end of the movable bolt 501 is rotatably connected to the connecting rod 502, and one end of the connecting rod 502 is rotatably connected to the rotating bolt 503. The setting of the rotating bolt 503 plays a role in rotating the connecting rod 502;

[0027] The stretching assembly 6 includes a stretching disc 601 slidably connected to the inside of the movable sleeve 2, the inner thread of the stretching disc 601 is connected to a threaded rod 602, one end of the threaded rod 602 is fixedly connected to the driving motor 11, and the arrangement of the threaded rod 602 facilitates the extension and retraction of the stretching disc 601;

[0028] The buffer assembly 9 includes a buffer hydraulic column 901 fixedly connected to the top of the connection plate 8, and a spring 902 is sleeved on the surface of the buffer hydraulic column 901. The spring 902 plays a buffering role.

[0029] The top of the buffer hydraulic column 901 is fixedly connected with a top plate 10, which provides power through the setting of a driving motor 11;

[0030] The top of the rotating rod 4 is rotatably connected to a roller 12, and one side of one set of support plates 3 is fixedly connected to a fixing tube 13, and the setting of the fixing tube 13 plays a role in fixing the camera 14;

[0031] The interior of the fixed tube 13 is fixedly connected with a camera 14 , and the surface of the movable sleeve 2 is provided with four groups of open grooves adapted to the connecting rod 502 . The provision of the open grooves facilitates the movement of the connecting rod 502 .

[0032] In the utility model, the working steps of the device are as follows:

[0033] Step 1: When encountering a pipeline collapse, since the pipeline collapse aperture becomes smaller, the driving motor 11 is started to drive the threaded rod 602 to rotate, and then the threaded rod 602 is used to push the stretching plate 601 to expand and contract on the surface of the threaded rod 602;

[0034] Step 2: Pull the connecting rod 502 to rotate on the surface of the rotating bolt 503 and the movable bolt 501, so that the rotating rod 4 rotates inwardly inside the supporting plate 3;

[0035] The third step: start the lifting hydraulic column 7 to drive the top plate 10 to rise and fall, so that the top plate 10 squeezes the collapsed part of the pipeline, so that the collapsed part of the pipeline generates reverse pressure, squeezes the buffer hydraulic column 901 to buffer the contraction, and then the spring 902 is deformed by force to generate rebound force.

[0036] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0037] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipeline inner wall expansion device for trenchless repair, comprising a support column (1), characterized in that: One end of the support column (1) is sleeved with a movable sleeve (2), and the other end of the support column (1) is fixedly connected to a support plate (3). The surface of the support plate (3) is rotatably connected to four groups of rotating rods (4), and one side of the rotating rod (4) is fixedly connected to a connecting component (5). The inside of the movable sleeve (2) is slidably connected to a stretching component (6). The surface of the support column (1) is fixedly connected to four groups of lifting hydraulic columns (7), and the top of the lifting hydraulic column (7) is fixedly connected to a connecting plate (8), and the top of the connecting plate (8) is fixedly connected to a buffer component (9).

2. The pipeline inner wall expansion device for trenchless repair according to claim 1, characterized in that: The connecting assembly (5) comprises a movable bolt (501) fixedly connected to one side of the rotating rod (4); one end of the movable bolt (501) is rotatably connected to a connecting rod (502); and one end of the connecting rod (502) is rotatably connected to a rotating bolt (503).

3. The pipeline inner wall expansion device for trenchless repair according to claim 1, characterized in that: The stretching assembly (6) comprises a stretching disc (601) slidably connected to the inside of the movable sleeve (2); the inner thread of the stretching disc (601) is connected to a threaded rod (602); one end of the threaded rod (602) is fixedly connected to a driving motor (11).

4. The pipeline inner wall expansion device for trenchless repair according to claim 1, characterized in that: The buffer assembly (9) comprises a buffer hydraulic column (901) fixedly connected to the top of the connection plate (8), and a spring (902) is sleeved on the surface of the buffer hydraulic column (901).

5. The pipeline inner wall expansion device for trenchless repair according to claim 4, characterized in that: The top of the buffer hydraulic column (901) is fixedly connected to a top plate (10).

6. The pipeline inner wall expansion device for trenchless repair according to claim 1, characterized in that: The top of the rotating rod (4) is rotatably connected to a roller (12), and one side of one group of the supporting plates (3) is fixedly connected to a fixing tube (13).

7. The pipeline inner wall expansion device for trenchless repair according to claim 6, characterized in that: A camera (14) is fixedly connected to the interior of the fixed tube (13), and the surface of the movable sleeve (2) is provided with four groups of open grooves that are compatible with the connecting rod (502).

Images