Interface device for non-excavation repair construction of power cable protection pipe

Abstract

The invention belongs to the technical field of power construction devices, and particularly relates to an interface device for non-excavation repair construction of a power cable protection pipe. Comprising a supporting guide rail, a supporting sliding seat is connected to the supporting guide rail in a sliding mode, a lifting driving mechanism is arranged on the supporting sliding seat, the lifting driving mechanism is connected with a supporting and fixing assembly, and a connector pipe penetrates through the supporting and fixing assembly and is supported and fixed by the supporting and fixing assembly; the lifting driving mechanism is used for driving the supporting and fixing assembly to ascend and descend. A displacement driving mechanism is arranged on the supporting guide rail, the displacement driving mechanism is connected with the supporting sliding seat, and the displacement driving mechanism is used for driving the supporting sliding seat to move along the supporting guide rail; the device is reasonable in structure, convenient to operate and use and capable of assisting workers in power cable protection pipe non-excavation repair operation, the operation efficiency is improved, potential safety hazards of manual operation are eliminated, and meanwhile the labor intensity of the workers is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power construction devices, and in particular relates to an interface device used for trenchless repair construction of power cable protection pipes. Background Art

[0002] Power cables are used to transmit and distribute electric energy. They are often used in urban underground power grids, power station lead-out lines, internal power supply for industrial and mining enterprises, and underwater transmission lines across rivers and seas. The basic structure of power cables consists of four parts: core (conductor), insulation layer, shielding layer, and protective layer. The core is the conductive part of the power cable, which is used to transmit electric energy; the insulation layer is to electrically isolate the core from the earth and the cores of different phases from each other to ensure the transmission of electric energy; the shielding layer is used to improve the electric field distribution and eliminate the tangent stress on the insulation surface; the protective layer protects the power cable from the invasion of external impurities and moisture, and prevents external forces from directly damaging the power cable. Before laying out the power cable for underground construction, the quality of the trench pit must be strictly checked. The transmission line must not be damaged during the laying process, and attention should be paid to checking the wires for defects at any time. Transmission lines with defects such as uneven thickness and damaged sheaths should be handled in a timely manner. When using power cable protection pipes to protect cables, the cable conduits will be damaged during long-term use. When performing non-excavation repair on them, an interface pipe must be connected at the interface end. Therefore, it is necessary to provide an interface device for non-excavation repair construction of power cable protection pipes. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide an interface device for trenchless repair construction of power cable protection pipes, so as to assist workers in performing trenchless repair operations of power cable protection pipes, improve work efficiency, eliminate safety hazards of manual operations, and reduce the labor intensity of workers.

[0004] The objective of the present invention is achieved in this way: an interface device for trenchless repair construction of power cable protection pipes, comprising a support rail, a support slide is slidably connected to the support rail, a lifting drive mechanism is arranged on the support slide, the lifting drive mechanism is connected to a support fixing assembly, the interface pipe passes through the support fixing assembly and is supported and fixed thereby; the lifting drive mechanism is used to drive the support fixing assembly to be lifted and lowered; a displacement drive mechanism is arranged on the support rail, the displacement drive mechanism is connected to the support slide, and the displacement drive mechanism is used to drive the support slide to move along the support rail.

[0005] Furthermore, two support rails are provided, the cross-section of the support rails is generally I-shaped, and the width of the top plate is smaller than the width of the bottom top; the support slide is connected to the top of the support rails in a sliding fit.

[0006] Furthermore, the support slide includes a support seat plate, a guide bent plate is provided at the bottom of the support seat plate, and the support slide is slidably connected with the support guide rail through the guide bent plate; the lifting drive mechanism is provided on the support seat plate.

[0007] Furthermore, the lifting drive mechanism includes a lower seat fixedly arranged on the supporting slide, the lower seat is rotatably connected to a supporting screw, and the supporting screw passes through the supporting and fixing component and is threadedly connected thereto; the supporting and fixing component can be driven by rotating the supporting screw.

[0008] Furthermore, the upper end of the support screw is rotatably connected to an upper connecting seat, and the top of the upper connecting seat is fixedly connected to an upper connecting plate; the two support screws can be connected together through the upper connecting plate.

[0009] Furthermore, a lifting drive motor is arranged on the support slide, the output shaft of the lifting drive motor is connected with a driving gear, a driven gear is fixedly arranged on the support screw, and the driving gear is meshingly connected with the driven gear; the height of the support fixing assembly can be adjusted and controlled through the operation of the lifting drive motor, and the operation is simple, reasonable, stable and efficient.

[0010] Furthermore, the displacement drive mechanism includes an end connecting plate connected between the two supporting guide rails, the end connecting plate is connected to a supporting vertical plate, a displacement drive motor is arranged on the supporting vertical plate, a displacement drive screw is rotatably connected between the two supporting vertical plates, and the drive motor is connected to the displacement drive screw; a drive plate is arranged on the supporting slide, the displacement drive screw passes through the drive plate and is threadedly connected thereto; the supporting slide can be driven to move along the supporting guide rail by the operation of the displacement drive motor, and the operation is convenient, fast, stable and efficient.

[0011] Furthermore, the supporting and fixing assembly includes a lower fixed arc plate and an upper fixed arc plate, and the ends of the lower fixed arc plate and the upper fixed arc plate are connected by a long screw; the ends of the lower fixed arc plate and the upper fixed arc plate are both provided with threaded sleeves, and the supporting screw passes through the threaded sleeve and is threadedly connected thereto; when the supporting screw rotates, the supporting and fixing assembly can be driven to move up and down through the threaded sleeve.

[0012] Furthermore, a gas injection interface is provided in the middle of the interface pipe, and interface flange plates are provided at both the closed end and the interface end of the interface pipe, and a sealing blind plate is connected to the interface flange plate at the closed end of the interface pipe.

[0013] Beneficial effects of the present invention: When using the interface device for trenchless repair construction of power cable protection pipes of the present invention, the main support frame including the support guide rail, the support slide seat, and the support fixing assembly must be first set at the interface of the pipe to be repaired, and the interface pipe that matches the size of the pipe to be repaired must pass through the support fixing assembly and be supported and fixed by it. Thereafter, the support fixing assembly can be driven to rise and fall by the lifting drive mechanism to adjust the height of the interface pipe so that it is flush with the pipe to be repaired, and the support slide seat can be driven to move along the support guide rail by the displacement drive mechanism to align the interface pipe with the pipe interface to be repaired for connection operation. The interface device for trenchless repair construction of power cable protection pipes of the present invention has a reasonable structure and is easy to operate and use. It can assist workers in trenchless repair operations of power cable protection pipes, improve work efficiency, eliminate safety hazards of manual operations, and reduce the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 The present invention is a three-dimensional structural schematic diagram of an interface device used for trenchless repair construction of power cable protection pipes.

[0016] Figure 2 It is a front view structural schematic diagram of an interface device used for trenchless repair construction of power cable protection pipes.

[0017] Figure 3 The present invention is a side structural schematic diagram of an interface device used for trenchless repair construction of power cable protection pipes.

[0018] Figure 4 The present invention is a structural schematic diagram of one side of the closed end of an interface pipe of an interface device used for trenchless repair construction of power cable protection pipes.

[0019] Figure 5 The present invention is a structural schematic diagram of one side of the interface end of an interface device for trenchless repair construction of power cable protection pipes. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0024] like Figure 1-5 As shown, an interface device for trenchless repair construction of power cable protection pipes of the present invention comprises a support rail 1, a support slide 4 is slidably connected to the support rail 1, a lifting drive mechanism 9 is arranged on the support slide 4, the lifting drive mechanism 9 is connected to a support fixing assembly 6, an interface pipe 5 passes through the support fixing assembly 6 and is supported and fixed thereby; the lifting drive mechanism 9 is used to drive the support fixing assembly 6 to be lifted and lowered; a displacement drive mechanism 2 is arranged on the support rail 1, the displacement drive mechanism 2 is connected to the support slide 4, and the displacement drive mechanism 2 is used to drive the support slide 4 to move along the support rail 1.

[0025] When using the interface device for trenchless repair construction of power cable protection pipes of the present invention, it is necessary to first set the main support frame including the support guide rail 1, the support slide 4, and the support and fixing assembly 6 at the interface of the pipe to be repaired, and pass the interface pipe 5 that is compatible with the size of the pipe to be repaired through the support and fixing assembly 6 and supported and fixed by it. Thereafter, the support and fixing assembly 6 can be driven to rise and fall by the lifting drive mechanism 9 to adjust the height of the interface pipe 5 so that it is flush with the pipe to be repaired, and the support slide 4 can be driven to move along the support guide rail 1 by the displacement drive mechanism 2 to align the interface pipe 5 with the interface of the pipe to be repaired for connection operation.

[0026] Furthermore, in one embodiment, two support rails 1 are provided, the cross-section of the support rails 1 is generally I-shaped, and the width of the top plate is smaller than the width of the bottom plate; the support slide 4 is connected to the top of the support rails 1 by sliding cooperation, and the two support rails 1 can stably support the device body.

[0027] Furthermore, in one embodiment, the support slide 4 includes a support seat plate 16, a guide bent plate 15 is provided at the bottom of the support seat plate 16, and the support slide 4 is slidably connected with the support guide rail 1 through the guide bent plate 15; the lifting drive mechanism 9 is provided on the support seat plate 16, and the lifting drive mechanism 9 and the support fixing assembly 6 can be driven to move by the movement of the support slide 4 along the support slide 4.

[0028] Furthermore, in one embodiment, the lifting drive mechanism 9 includes a lower seat 17 fixedly arranged on the supporting slide 4, and the lower seat 17 is rotatably connected to a support screw 22, and the support screw 22 passes through the supporting and fixing component 6 and is threadedly connected thereto; the supporting and fixing component 6 can be driven by rotating the support screw 22 to move up and down along the support screw 22, with a simple and reasonable structure and stable and convenient operation.

[0029] Furthermore, in one embodiment, the upper end of the support screw 22 is rotatably connected to an upper seat 26, and the top of the upper seat 26 is fixedly connected to an upper connecting plate 27; the two support screws 22 can be connected together through the upper connecting plate 27 to ensure the overall stability of the device.

[0030] Furthermore, in one embodiment, a lifting drive motor 18 is provided on the support slide 4, and the output shaft of the lifting drive motor 18 is connected to a driving gear 20, and a driven gear 19 is fixedly provided on the support screw 22, and the driving gear 20 is meshingly connected with the driven gear 19; the height of the support and fixing assembly 6 can be adjusted and controlled through the operation of the lifting drive motor 18, and the operation is simple and reasonable, stable and efficient; specifically, when the lifting drive motor 18 is working, the support screw 22 is driven to rotate through the meshing connection between the driving gear 20 and the driven gear 19, thereby driving the support and fixing assembly 6 to move up and down along the support screw 22.

[0031] Furthermore, in one embodiment, the displacement drive mechanism 2 includes an end connecting plate 10 connected between the two support guide rails 1, the end connecting plate 10 is connected to a support vertical plate 11, a displacement drive motor 12 is provided on the support vertical plate 11, a displacement drive screw 13 is rotatably connected between the two support vertical plates 11, and the drive motor 12 is connected to the displacement drive screw 13; a drive plate 14 is provided on the support slide 4, the displacement drive screw 13 passes through the drive plate 14 and is threadedly connected thereto; the support slide 4 can be driven to move along the support guide rail 1 by the operation of the displacement drive motor 12, and the operation is convenient, fast, stable and efficient; specifically, when the displacement drive motor 12 is working, it drives the displacement drive screw 13 to rotate, and the displacement drive screw 13 drives the support slide 4 to move along the support guide rail 1 through the drive plate 14.

[0032] Furthermore, in one embodiment, the support and fixing assembly 6 includes a lower fixed arc plate 21 and an upper fixed arc plate 25, and the ends of the lower fixed arc plate 21 and the upper fixed arc plate 25 are connected by a long screw 23; the ends of the lower fixed arc plate 21 and the upper fixed arc plate 25 are both provided with a threaded sleeve 24, and the support screw 22 passes through the threaded sleeve 24 and is threadedly connected thereto; when the support screw 22 rotates, the support and fixing assembly 6 can be driven to move up and down through the threaded sleeve 24 to adjust the height of the interface pipe 5.

[0033] Furthermore, in one embodiment, a gas injection interface 7 is provided in the middle of the interface pipe 5, and an interface flange plate 8 is provided at both the closed end and the interface end of the interface pipe 5, and the interface flange plate 8 at the closed end of the interface pipe 5 is connected to a sealing blind plate 3; the structure is simple and reasonable, and it is convenient for the interface connection and repair operations of the pipeline.

[0034] In summary, when the interface device for trenchless repair construction of power cable protection pipe of the present invention is used, the main support frame including the support guide rail 1, the support slide 4, and the support fixing assembly 6 must be set at the interface of the pipeline to be repaired, and the interface pipe 5 matched with the size of the pipeline to be repaired must pass through the support fixing assembly 6 and be supported and fixed by it, and then the support fixing assembly 6 can be driven to rise and fall by the lifting drive mechanism 9 to adjust the height of the interface pipe 5 so that it is flush with the pipeline to be repaired, and the support slide 4 can be driven to move along the support guide rail 1 by the displacement drive mechanism 2 to align the interface pipe 5 with the interface of the pipeline to be repaired for connection operation; the interface device for trenchless repair construction of power cable protection pipe of the present invention has a reasonable structure and is easy to operate and use, can assist workers in trenchless repair operations of power cable protection pipes, improve work efficiency, eliminate safety hazards of manual operations, and reduce the labor intensity of operators.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An interface device for trenchless repair construction of power cable protection pipes, characterized in that: The invention comprises a support rail (1), a support slide (4) being slidably connected to the support rail (1), a lifting drive mechanism (9) being arranged on the support slide (4), the lifting drive mechanism (9) being connected to a support fixing assembly (6), an interface pipe (5) passing through the support fixing assembly (6) and being supported and fixed thereby; the lifting drive mechanism (9) being used to drive the support fixing assembly (6) to be lifted and lowered; a displacement drive mechanism (2) being arranged on the support rail (1), the displacement drive mechanism (2) being connected to the support slide (4), and the displacement drive mechanism (2) being used to drive the support slide (4) to move along the support rail (1).

2. An interface device for trenchless repair construction of power cable protection pipe according to claim 1, characterized in that: Two support rails (1) are provided, and the cross section of the support rail (1) is generally I-shaped, and the width of the top plate is smaller than the width of the bottom plate.

3. The interface device for trenchless repair construction of power cable protection pipe according to claim 1, characterized in that: The support slide (4) comprises a support seat plate (16), a guide bent plate (15) is provided at the bottom of the support seat plate (16), and the support slide (4) is connected to the support guide rail (1) in a sliding manner via the guide bent plate (15).

4. The interface device for trenchless repair construction of power cable protection pipe according to claim 1, characterized in that: The lifting drive mechanism (9) comprises a lower connection seat (17) fixedly arranged on the support slide seat (4), the lower connection seat (17) being rotatably connected to a support screw rod (22), and the support screw rod (22) passes through the support fixing assembly (6) and is threadedly connected thereto.

5. The interface device for trenchless repair construction of power cable protection pipe according to claim 4, characterized in that: The upper end of the support screw (22) is rotatably connected to an upper connection seat (26), and the top of the upper connection seat (26) is fixedly connected to an upper connecting plate (27).

6. An interface device for trenchless repair construction of power cable protection pipes as claimed in claim 4, characterized in that: The support slide (4) is provided with a lifting drive motor (18), the output shaft of the lifting drive motor (18) is connected to a driving gear (20), a driven gear (19) is fixedly provided on the support screw rod (22), and the driving gear (20) is meshingly connected with the driven gear (19).

7. The interface device for trenchless repair of power cable protection pipe according to claim 1, characterized in that: The displacement drive mechanism (2) comprises an end connecting plate (10) connected between the two support guide rails (1), the end connecting plate (10) being connected to a support vertical plate (11), a displacement drive motor (12) being provided on the support vertical plate (11), a displacement drive screw rod (13) being rotatably connected between the two support vertical plates (11), the drive motor (12) being connected to the displacement drive screw rod (13); a drive plate (14) being provided on the support slide seat (4), the displacement drive screw rod (13) passing through the drive plate (14) and being threadedly connected thereto.

8. The interface device for trenchless repair construction of power cable protection pipe according to claim 4, characterized in that: The supporting and fixing assembly (6) comprises a lower fixed arc plate (21) and an upper fixed arc plate (25), the ends of the lower fixed arc plate (21) and the upper fixed arc plate (25) being connected via a long screw (23); the ends of the lower fixed arc plate (21) and the upper fixed arc plate (25) are both provided with a threaded sleeve (24), and the supporting screw (22) passes through the threaded sleeve (24) and is threadedly connected thereto.

9. The interface device for trenchless repair construction of power cable protection pipe according to claim 1, characterized in that: A gas injection interface (7) is provided in the middle of the interface pipe (5), and an interface flange plate (8) is provided at both the closed end and the interface end of the interface pipe (5), and the interface flange plate (8) at the closed end of the interface pipe (5) is connected to a sealing blind plate (3).

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