Movable grounding resistance detection device of power transmission line clearing-free tower

Abstract

The invention belongs to the technical field of tower grounding resistance detection, and particularly relates to a power transmission line dismounting-free tower movable grounding resistance detection device. Comprising a working platform, lifting supporting legs and movable supporting legs are fixedly arranged at the bottom of the working platform, a reinforcing frame is connected between the lower portions of the lifting supporting legs, a driving assembly is arranged on the reinforcing frame, and the driving assembly is connected with the bottom of the working platform. The driving assembly is used for driving the working platform to ascend and descend. The top of the working platform is provided with cable take-up and pay-off assemblies, a suspension bracket and a detection control device. An isolation box body is arranged outside the multiple cable take-up and pay-off assemblies. The device can effectively assist workers in detecting the grounding resistance of the power transmission line tower, improves the working efficiency, reduces the labor intensity of the workers, and guarantees the long-term stable operation of the power transmission line.

Description

Technical Field

[0001] The invention belongs to the technical field of pole tower grounding resistance detection, and in particular relates to a movable grounding resistance detection device for a transmission line pole tower without requiring removal of the wires. Background Art

[0002] A tower is a structure used to support overhead transmission lines, maintaining a safe distance between conductors, the ground, and the earth. Mostly constructed of steel or reinforced concrete, it serves as the primary support structure for overhead transmission lines. Pole towers can be categorized by material: wood, concrete, or metal. They can be structurally divided into free-standing towers and guyed towers. Free-standing towers rely on their own foundation for stability, while guyed towers are supported by symmetrical guy wires on the tower head or body. Transmission line towers support the conductors, maintaining a certain tension and height, ensuring continuity and stability of power transmission, and preventing contact between the conductors and the ground or other objects, thus ensuring safe power transmission. The grounding resistance of a tower refers to the resistance device used by high-voltage transmission line towers to conduct lightning surge currents to the ground. In the event of a lightning strike, the surge current is diverted to the earth through the natural grounding at the tower foundation and artificial horizontal grounding bodies. This protects equipment, improves the lightning resistance of the line, and reduces lightning damage. Detecting ground resistance is of great significance for ensuring the safe and stable operation of the power system. It can timely discover and deal with ground resistance anomalies and prevent equipment damage and power outages caused by lightning strikes. Therefore, it is necessary to provide a movable ground resistance detection device for transmission line towers without the need for disassembly. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a transmission line tower movable grounding resistance detection device that does not require wire removal. It can effectively assist workers in performing transmission line tower grounding resistance detection operations, improve work efficiency, reduce workers' labor intensity, and ensure long-term stable operation of transmission lines.

[0004] The object of the present invention is achieved as follows: a movable grounding resistance detection device for a power transmission line tower without wire removal, comprising a working platform, a bottom of which is fixedly provided with lifting legs and movable legs, a reinforcement frame being connected between the lower portions of the lifting legs, a driving assembly being provided on the reinforcement frame, the driving assembly being connected to the bottom of the working platform, and the driving assembly being used to drive the working platform to move up and down; A cable retracting assembly, a suspension rack and a detection control device are arranged on the top of the working platform, and an isolation box is arranged outside the plurality of cable retracting assemblies.

[0005] Furthermore, the lifting leg includes an outer leg tube, an inner leg rod is slidably connected to the inside of the outer leg tube, the upper end of the inner leg rod is connected to the bottom of the working platform; the bottom end of the outer leg tube is connected to the leg seat plate.

[0006] Furthermore, the reinforcement frame includes a transverse connecting rod connected between two adjacent lifting legs along the length direction of the working platform and a longitudinal connecting rod connected between two adjacent lifting legs along the width direction of the working platform.

[0007] Furthermore, a double-ended socket is provided on the lower part of each lifting leg, and the ends of the transverse connecting rod and the longitudinal connecting rod are connected to the corresponding double-ended sockets; the ends of the transverse connecting rod and the longitudinal connecting rod are connected to the corresponding double-ended sockets by plugging.

[0008] Furthermore, the movable leg includes a leg seat fixedly connected to the bottom of the working platform, the leg seat is connected to a movable support rod, and the lower end of the movable support rod is connected to a movable wheel; a guide support plate is provided on the reinforcement frame, and a guide sleeve is provided on the guide support plate, and the movable support rod passes through the guide sleeve and is slidably connected thereto; the movable support rod can be guided and limited by the guide sleeve.

[0009] Furthermore, the driving assembly includes a support base plate arranged on the reinforcement frame, a lifting motor is provided on the support base plate, the lifting motor is connected to a driving screw, a threaded sleeve is provided at the bottom of the working platform, and the driving screw is threadedly connected to the threaded sleeve.

[0010] Furthermore, a connecting socket is provided on the middle part of the longitudinal connecting rod, an intermediate connecting rod is connected between the two connecting sockets, a first connecting plate is provided at the bottom of the guide support plate, a second connecting plate is provided at the bottom of the driving assembly, and the intermediate connecting rod passes through the first connecting plate and the second connecting plate and is connected thereto.

[0011] Furthermore, the suspension frame includes a first vertical plate arranged on the working platform, a suspension cross bar is provided on the first vertical plate, and an end baffle is connected to the end of the suspension cross bar; the ground wire detection component to be used can be hung on it through the suspension cross bar.

[0012] Furthermore, the cable retracting assembly includes a second vertical plate arranged on the working platform, a cable drum is rotatably connected to the second vertical plate, an inner gear ring is provided on the end panel of the cable drum, a driving motor is provided on the second vertical plate, the driving motor is connected to a driving gear, and the driving gear is meshed with the inner gear ring; there are multiple cable drums.

[0013] Furthermore, the detection control device is provided with a display screen and an operation panel.

[0014] The beneficial effects of the present invention are as follows: a movable grounding resistance detection device for a power transmission line tower that does not require disassembly of wires of the present invention, wherein a lifting leg and a movable leg are fixedly provided at the bottom of the working platform, and the device can be supported by the lifting leg when working to ensure its stability during working, and when the device needs to be moved, it can be supported by the movable leg to facilitate its movement; a reinforcing frame is connected between the lower parts of the lifting legs, and the lifting legs can be connected by the reinforcing frame to enhance its overall stability; a driving assembly is provided on the reinforcing frame, and the driving assembly is connected to the bottom of the working platform, and can be supported by the lifting leg when working, and the working platform can be driven to rise and fall by the driving assembly to adjust its height as needed; when the device needs to be moved, the working platform is driven downward by the driving assembly, and the movable leg is subsequently lowered to the required height. The movable wheels are supported on the ground. As the driving assembly continues to drive the working platform downward, the height of the working platform remains unchanged under the support of the moving legs. The driving assembly lifts the lower part of the lifting legs through the reinforcing frame to make it leave the ground. At this time, the device can be moved under the support of the moving legs; a cable retracting assembly, a hanging rack and a detection control device are provided on the top of the working platform. The detection cable can be retracted and released by the cable retracting assembly, and the ground wire detection assembly to be used is suspended by the hanging rack. The ground wire detection assembly is connected to the cable wound on the cable retracting assembly so that it can be used at any time; the movable grounding resistance detection device for a power transmission line pole tower without wire disassembly of the present invention has a reasonable structure and is easy to operate and use. It can effectively assist staff in performing grounding resistance detection operations on power transmission line pole towers, improve work efficiency, reduce labor intensity of staff, and ensure long-term and stable operation of transmission lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0016] Figure 1 The present invention is a three-dimensional structural diagram of a movable grounding resistance detection device for a transmission line tower without requiring wire removal.

[0017] Figure 2The present invention is a schematic structural diagram of a movable grounding resistance detection device for a transmission line tower that does not require removal of the transmission line.

[0018] Figure 3 The figure is a side view of the structure of a movable grounding resistance detection device for a transmission line tower that does not require removal of the line.

[0019] Figure 4 The diagram is a top view of the structure of a movable grounding resistance detection device for a transmission line tower that does not require removal of the transmission line.

[0020] Figure 5 The diagram shows the structure of the lifting legs and the reinforcement frame connection of a movable grounding resistance detection device for a transmission line tower without wire removal.

[0021] Figure 6 The present invention is a schematic diagram of a partial upward structural view of a movable grounding resistance detection device for a transmission line tower that does not require wire removal.

[0022] Figure 7 This is a schematic diagram of the structure inside the isolation box of a movable grounding resistance detection device for a transmission line tower that does not require wire removal.

[0023] Figure 8 This is a structural schematic diagram of a cable retracting and extending assembly of a movable grounding resistance detection device for a transmission line tower that does not require wire removal. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship and movement status between the various components in a 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.

[0028] like Figure 1-8As shown, a transmission line tower movable grounding resistance detection device without wire removal of the present invention comprises a working platform 1, a lifting leg 7 and a movable leg 5 are fixedly provided at the bottom of the working platform 1, a reinforcement frame 6 is connected between the lower parts of each lifting leg 7, a driving assembly 8 is provided on the reinforcement frame 6, and the driving assembly 8 is connected to the bottom of the working platform 1, and the driving assembly 8 is used to drive the working platform 1 to move up and down; A cable retracting assembly 27 , a suspension bracket 3 and a detection control device 2 are provided on the top of the working platform 1 , and an isolation box 4 is provided outside the plurality of cable retracting assemblies 27 .

[0029] Furthermore, in one embodiment, the lifting leg 7 includes a leg outer tube 9, and a leg inner rod 10 is slidably connected inside the leg outer tube 9, and the upper end of the leg inner rod 10 is connected to the bottom of the working platform 1; the bottom end of the leg outer tube 9 is connected to a leg seat plate 11, and the working platform 1 can be driven to rise and fall by the driving assembly 8. At this time, the leg inner rod 10 slides inside the leg outer tube 9, providing support while ensuring the stability of the entire device.

[0030] Furthermore, in one embodiment, the reinforcement frame 6 includes a transverse connecting rod 13 connected between two adjacent lifting legs 7 along the length direction of the working platform 1 and a longitudinal connecting rod 14 connected between two adjacent lifting legs 7 along the width direction of the working platform 1; each lifting leg 7 is connected by the transverse connecting rod 13 and the longitudinal connecting rod 14 to ensure the stability of the entire supporting structure.

[0031] Furthermore, in one embodiment, a double-ended socket 12 is provided on the lower part of each lifting leg 7, and the ends of the transverse connecting rod 13 and the longitudinal connecting rod 14 are connected to the corresponding double-ended socket 12; the ends of the transverse connecting rod 13 and the longitudinal connecting rod 14 are connected to the corresponding double-ended socket 12 by plugging, the structure is simple and reasonable, and the connection is convenient and quick.

[0032] Furthermore, in one embodiment, the movable leg 5 includes a leg socket 23 fixedly connected to the bottom of the work platform 1, the leg socket 23 is connected to a movable support rod 19, and the lower end of the movable support rod 19 is connected to a movable wheel 17; a guide support plate 16 is provided on the reinforcing frame 6, and a guide sleeve 18 is provided on the guide support plate 16, and the movable support rod 19 passes through the guide sleeve 18 and is slidably connected thereto; the movable support rod 19 can be guided and limited by the guide sleeve 18, and when the work platform 1 moves downward under the drive of the driving assembly 8, the movable leg 5 is subsequently lowered until the movable wheel 17 is supported on the ground. As the driving assembly 8 continues to drive the work platform 1 downward, the height of the work platform 1 remains unchanged under the support of the movable leg 5, and the driving assembly 8 lifts the lower part of the lifting leg 7 through the reinforcing frame 6 to make it leave the ground. At this time, the device can be moved under the support of the movable leg 5, and the operation is convenient and quick.

[0033] Furthermore, in one embodiment, the driving assembly 8 includes a support base plate 20 arranged on the reinforcement frame 6, a lifting motor 21 is provided on the support base plate 20, the lifting motor 21 is connected to a driving screw 22, a threaded sleeve 38 is provided at the bottom of the working platform 1, and the driving screw 22 is threadedly connected to the threaded sleeve 38; the height of the working platform 1 can be adjusted and controlled by the operation of the lifting motor 21, and the movable legs 5 can be switched to support the device, which is convenient and reasonable to operate, stable and efficient.

[0034] Furthermore, in one embodiment, a connecting socket 24 is provided on the middle part of the longitudinal connecting rod 14, an intermediate connecting rod 15 is connected between the two connecting sockets 24, a first connecting plate 25 is provided at the bottom of the guide support plate 16, and a second connecting plate 26 is provided at the bottom of the driving assembly 8, and the intermediate connecting rod 15 passes through the first connecting plate 25 and the second connecting plate 26 and is connected thereto; the connection between the movable support leg 5, the driving assembly 8 and the reinforcing frame 6 is strengthened by the intermediate connecting rod 15 to ensure the stability of the lower structure of the device.

[0035] Furthermore, in one embodiment, the hanging frame 3 includes a first vertical plate 29 arranged on the working platform 1, and a hanging cross bar 28 is provided on the first vertical plate 29, and the end of the hanging cross bar 28 is connected to an end baffle 30; the ground wire detection component to be used can be hung on the hanging cross bar 28, and the ground wire detection component is connected to the cable wound on the cable retracting component so that it can be used at any time, thereby improving work efficiency.

[0036] Furthermore, in one embodiment, the cable retraction assembly 27 includes a second vertical plate 33 provided on the working platform 1, a cable drum 34 is rotatably connected to the second vertical plate 33, an inner gear ring 37 is provided on the end panel of the cable drum 34, a driving motor 35 is provided on the second vertical plate 33, the driving motor 35 is connected to a driving gear 36, and the driving gear 36 is meshed with the inner gear ring 37; the detection cable can be retracted and released through the cable drum 34, and there are multiple cable drums 34, and the corresponding driving motors 35 can be used to perform independent cable retraction and release operations, thereby improving work efficiency.

[0037] Furthermore, in one embodiment, a display screen 31 and an operation panel 32 are provided on the detection and control device 2 to facilitate visual operation of the detection and control device 2 through the display screen 31 and the operation panel 32 .

[0038] When the lifting device is in operation, the lifting legs 7 and the movable legs 5 are fixedly provided at the bottom of the working platform 1. When the working device is in operation, the lifting legs 7 can be supported by the lifting legs 7 to ensure its stability during operation. When the working device needs to be moved, the movable legs 5 can be supported by the movable legs 5 to facilitate its movement. A reinforcing frame 6 is connected between the lower parts of the lifting legs 7, and the lifting legs 7 can be connected by the reinforcing frame 6 to enhance its overall stability. A driving component 8 is provided on the reinforcing frame 6, and the driving component 8 is connected to the bottom of the working platform 1. When the working device is in operation, the lifting legs 7 can be supported by the lifting legs 7. The working platform 1 can be driven to rise and fall by the driving component 8 as needed to adjust its height. When the working device needs to be moved, the working platform 1 is driven downward by the driving component 8, and the movable legs 5 are lowered accordingly until the movable legs 5 are lowered. The driving wheel 17 is supported on the ground. As the driving assembly 8 continues to drive the working platform 1 downward, the height of the working platform 1 remains unchanged under the support of the movable legs 5. The driving assembly 8 lifts the lower part of the lifting legs 7 through the reinforcing frame 6 to make it leave the ground. At this time, the device can be moved under the support of the movable legs 5; a cable retracting assembly 27, a hanging bracket 3 and a detection control device 2 are provided on the top of the working platform 1. The detection cable can be retracted and released by the cable retracting assembly 27, and the ground wire detection assembly to be used is suspended by the hanging bracket 3. The ground wire detection assembly is connected to the cable wound on the cable retracting assembly so that it can be used at any time; the movable grounding resistance detection device for a power transmission line tower without wire removal of the present invention has a reasonable structure and is easy to operate and use. It can effectively assist staff in performing grounding resistance detection operations on power transmission line towers, improve work efficiency, reduce labor intensity of staff, and ensure long-term and stable operation of transmission lines.

[0039] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0040] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A transmission line tower movable grounding resistance detection device, characterized in that: The invention comprises a working platform (1), wherein a lifting leg (7) and a movable leg (5) are fixedly provided at the bottom of the working platform (1), a reinforcement frame (6) is connected between the lower parts of the lifting legs (7), a driving assembly (8) is provided on the reinforcement frame (6), and the driving assembly (8) is connected to the bottom of the working platform (1), and the driving assembly (8) is used to drive the working platform (1) to move up and down; A cable retracting assembly (27), a suspension frame (3) and a detection control device (2) are provided on the top of the working platform (1); and an isolation box (4) is provided outside the plurality of cable retracting assemblies (27).

2. A transmission line tower movable grounding resistance detection device according to claim 1, characterized in that: The lifting leg (7) comprises a leg outer tube (9), a leg inner rod (10) is slidably connected inside the leg outer tube (9), and the upper end of the leg inner rod (10) is connected to the bottom of the working platform (1).

3. A transmission line tower movable grounding resistance detection device according to claim 1, characterized in that: The reinforcement frame (6) comprises a transverse connecting rod (13) connected between two adjacent lifting legs (7) along the length direction of the working platform (1) and a longitudinal connecting rod (14) connected between two adjacent lifting legs (7) along the width direction of the working platform (1).

4. A transmission line tower movable grounding resistance detection device according to claim 3, characterized in that: A double-ended socket (12) is provided on the lower portion of each lifting support leg (7), and the ends of the transverse connecting rod (13) and the longitudinal connecting rod (14) are connected to the corresponding double-ended socket (12).

5. A transmission line tower movable grounding resistance detection device according to claim 3, characterized in that: The movable support leg (5) includes a support leg seat (23) fixedly connected to the bottom of the working platform (1), the support leg seat (23) is connected to a movable support rod (19), and the lower end of the movable support rod (19) is connected to a movable wheel (17); a guide support plate (16) is provided on the reinforcing frame (6), a guide sleeve (18) is provided on the guide support plate (16), and the movable support rod (19) passes through the guide sleeve (18) and is slidably connected thereto.

6. A transmission line tower movable grounding resistance detection device according to claim 1, characterized in that: The driving assembly (8) includes a support base plate (20) arranged on the reinforcement frame (6), a lifting motor (21) is arranged on the support base plate (20), and the lifting motor (21) is connected to a driving screw (22). A threaded sleeve (38) is provided at the bottom of the working platform (1), and the driving screw (22) is threadedly connected to the threaded sleeve (38).

7. A transmission line tower movable grounding resistance detection device according to claim 5, characterized in that: A connecting socket (24) is provided at the middle of the longitudinal connecting rod (14), an intermediate connecting rod (15) is connected between the two connecting sockets (24), a first connecting plate (25) is provided at the bottom of the guide support plate (16), a second connecting plate (26) is provided at the bottom of the driving assembly (8), and the intermediate connecting rod (15) passes through the first connecting plate (25) and the second connecting plate (26) and is connected thereto.

8. The transmission line tower movable grounding resistance detection device according to claim 1, characterized in that: The suspension frame (3) comprises a first vertical plate (29) arranged on the working platform (1), a suspension crossbar (28) is arranged on the first vertical plate (29), and an end of the suspension crossbar (28) is connected to an end plate (30).

9. A transmission line tower movable grounding resistance detection device according to claim 1, characterized in that: The cable retracting assembly (27) includes a second vertical plate (33) arranged on the working platform (1), a cable drum (34) is rotatably connected to the second vertical plate (33), an inner gear ring (37) is provided on the end panel of the cable drum (34), a driving motor (35) is provided on the second vertical plate (33), the driving motor (35) is connected to a driving gear (36), and the driving gear (36) is meshed with the inner gear ring (37).

10. The transmission line tower movable grounding resistance detection device according to claim 1, characterized in that: The detection control device (2) is provided with a display screen (31) and an operation panel (32).

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