Intelligent power transmission line tower grounding evaluation device and evaluation system

Abstract

The utility model relates to a power transmission line tower grounding intelligence evaluation device and evaluation system, the power transmission line tower grounding intelligence evaluation device comprises a detection sleeve and a plurality of groups of power detection members used for detecting grounding wires of different specifications, and all the power detection members are arranged in the detection sleeve and are arrayed at equal intervals along the longitudinal direction of the detection sleeve; according to the utility model, the detection sleeve which can be sleeved on the grounding wire is arranged, the detection sleeve is internally provided with a plurality of electric power detection rings used for detecting the grounding wires of different specifications, each electric power detection ring is composed of two semicircular parts which can be spliced, and the two semicircular parts are in a separated state in a normal state; according to the ground wire detection device, the two semicircular parts matched with the ground wire in specification are spliced together to surround the ground wire, so that the ground wire is detected, the detection sleeve can be transversely sleeved or vertically sleeved according to the wire arrangement mode of the ground wire, and the situation that detection cannot be carried out due to the fact that the distance between the ground wire and the electric tower is too small can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power maintenance, in particular to an intelligent evaluation device and an evaluation system for the grounding of transmission line towers. Background Art

[0002] One of the main functions of the tower grounding wire is to ensure the safety of power operation and prevent problems such as current discharge and fire caused by external factors such as lightning strikes and static electricity. By detecting the grounding wire, problems such as poor grounding and excessive resistance can be discovered and solved in time, so as to ensure the safe and stable operation of power facilities in harsh environments.

[0003] In the prior art, a power detection device is usually used to detect the grounding wire. During the detection, the grounding wire is placed in the clamp of the power detection device, so as to detect the current and resistance of the grounding wire located in the clamp. Usually, in order to make the detection device applicable to grounding wires of different specifications, the clamping space of the clamp is usually set very large. However, if the clamping space of the clamp is too large, it is easy to cause inaccurate detection data. In order to make the detection data more accurate, a Chinese patent with the publication number CN201620393212.5 appears in the prior art to solve the above problems.

[0004] This Chinese patent discloses a clamp for measuring grounding resistance. The clamp for measuring grounding resistance includes a clamping part, a testing part, and a rotating part. The clamping part includes a first clamping part and a second clamping part, and the first clamping part and the second clamping part are connected by a rotating part; a testing part is arranged on the clamping part. By providing clamping parts with different sizes, the grounding wires of different specifications can be closely detected, improving the accuracy of detection data. However, the length of this clamp is relatively long. In the prior art, some grounding wires are located near the tower and arranged longitudinally along the tower. The distance between the grounding wire and the tower is relatively short. During the detection, the clamp is vertically sleeved on the grounding wire. If the length of the clamp exceeding the grounding wire is longer than the distance between the grounding wire and the tower, the clamp cannot be sleeved on the grounding wire for detection, so there are limitations in use. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an intelligent evaluation device and an evaluation system for the grounding of transmission line towers, which can improve the detection accuracy and at the same time reduce the situation where detection cannot be carried out due to the too small distance between the grounding wire and the tower.

[0006] To address the deficiencies of the above technical problems, the technical solution adopted by the present utility model is: a smart evaluation device for the grounding of transmission line towers, including a detection sleeve and multiple groups of power detection components for detecting grounding wires of different specifications. All the power detection components are arranged in the detection sleeve and are equally spaced in an array along its longitudinal direction. The detection sleeve is composed of two hinged semi-cylindrical bodies spliced together. The power detection component includes a power detection ring and a connecting wire electrically connected to the power detection ring. The power detection ring is composed of two semi-circular parts, and the two semi-circular parts are respectively located in the two semi-cylindrical bodies. A lead screw is rotatably provided on the outer circular side of the semi-circular part. The end of the lead screw away from the semi-circular part is screwed to the corresponding semi-cylindrical body. A torsion spring for keeping the two opposite semi-circular parts concentric is sleeved on the rod body of the lead screw between the semi-circular part and the semi-cylindrical body. One end of the torsion spring is connected to the semi-circular part, and the other end of the torsion spring is connected to the semi-cylindrical body.

[0007] As a further optimization of the smart evaluation device for the grounding of transmission line towers of the present utility model, the semi-circular part is connected to the lead screw through an insulating block.

[0008] As a further optimization of the smart evaluation device for the grounding of transmission line towers of the present utility model, a groove is provided on one side end face of one semi-cylindrical body, and a convex block that can be inserted into the groove is provided on one side end face of the other semi-cylindrical body. A rotating rod arranged longitudinally along the groove is passed through the convex block, and both ends of the rotating rod are rotatably connected to the two end walls of the groove in sequence.

[0009] As a further optimization of the smart evaluation device for the grounding of transmission line towers of the present utility model, a card slot is provided on the end side of one semi-cylindrical body facing away from the hinged end, and a clamping block that cooperates with the card slot for clamping is provided on the end side of the other semi-cylindrical body facing away from the hinged end.

[0010] As a further optimization of the smart evaluation device for the grounding of transmission line towers of the present utility model, the distance between adjacent two power detection components is 1 - 3 centimeters.

[0011] As a further optimization of the smart evaluation device for the grounding of transmission line towers of the present utility model, a limiting block is provided at one end of the lead screw outside the semi-cylindrical body.

[0012] As a further optimization of the smart evaluation device for the grounding of transmission line towers of the present utility model, an insulating layer is embedded on the outer circular side of the semi-cylindrical body.

[0013] A grounding evaluation system for transmission line towers includes a data monitoring host and 4 of the above-mentioned smart evaluation devices for the grounding of transmission line towers. The connecting wires of the power detection rings are all connected to the data terminals of the data monitoring host.

[0014] The utility model has the following beneficial effects: By arranging a detection sleeve that can be sleeved on the grounding wire and arranging a plurality of power detection rings for detecting grounding wires of different specifications in the detection sleeve, the power detection ring is composed of two semi-circular parts that can be spliced. In the normal state, the two semi-circular parts are in a separated state. When the grounding wire is located in the detection sleeve, by splicing two semi-circular parts that match its specification to surround the grounding wire, so as to detect it. Moreover, the detection sleeve can be horizontally sleeved or vertically sleeved according to the wiring mode of the grounding wire, occupying extremely small space, and can reduce the situation that detection cannot be carried out due to the too small distance between the grounding wire and the electric tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the evaluation device of the utility model;

[0016] Figure 2 is a top view schematic diagram of the structure of the evaluation device of the utility model;

[0017] Reference numerals: 1, detection sleeve; 101, semi-cylindrical body; 2, power detection ring; 201, semi-circular part; 3, lead screw; 4, torsion spring; 5, limit block; 6, ; 7, groove; 8, convex block; 9, rotating rod; 10, insulating block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model.

[0019] Embodiment 1

[0020] As Figure 1-2 shown, this embodiment provides a smart evaluation device for the grounding of transmission line towers, which is used to closely detect grounding wires of different specifications, and at the same time, detection cannot be carried out due to the too small distance between the grounding wire and the electric tower. The evaluation device includes a detection sleeve 1 and multiple groups of power detection components for detecting grounding wires of different specifications (thicknesses). The detection sleeve 1 can be sleeved on the grounding wire for detection. At the same time, in order to detect the grounding wire located in the detection sleeve 1, all the power detection components are placed in the detection sleeve 1. After the grounding wire is located in the detection sleeve 1, the power detection components can detect the grounding wire.

[0021] In this embodiment, it is composed of two hinged semi-cylindrical bodies 101 spliced together. Insulation layers are embedded on the outer circular sides of the semi-cylindrical bodies 101 to isolate the current. Through the two hinged semi-cylindrical bodies 101, the detection sleeve 1 can be sleeved on the grounding wire, so as to detect it. Since the detection sleeve 1 is sleeved on the grounding wire, the detection sleeve 1 can be horizontally sleeved or vertically sleeved according to the wiring mode of the grounding wire, occupying extremely little space, and can reduce the situation that detection cannot be carried out due to the too small distance between the grounding wire and the electric tower.

[0022] In this embodiment, a groove 7 is opened on one end face of one semi-cylindrical body 101, and a convex block 8 that can be inserted into the groove 7 is provided on one end face of the other semi-cylindrical body 101. A rotating rod 9 is arranged longitudinally along the groove 7 on the convex block 8, and both ends of the rotating rod 9 are rotatably connected to the two end walls of the groove 7 in sequence. The convex block 8 is restricted in the groove 7 through the rotating rod 9, so as to hinge the two semi-cylindrical bodies 101 together.

[0023] In this embodiment, a clamping groove is provided on the end side of one semi-cylindrical body 101 facing away from the hinged end, and a clamping block that cooperates with the clamping groove is provided on the end side of the other semi-cylindrical body 101 facing away from the hinged end. Through the cooperation of the clamping groove and the clamping block, the two semi-cylindrical bodies 101 can be spliced into the detection sleeve 1. When one end parts of the two semi-cylindrical bodies 101 are separated, it is convenient for the grounding wire to enter the detection sleeve 1. When the ends of the two semi-cylindrical bodies 101 are all connected, the detection sleeve 1 can be sleeved on the grounding wire to prevent it from falling off.

[0024] In this embodiment, all the power detection components are arranged in an equidistant array along the longitudinal direction of the detection sleeve 1, and the distance between two adjacent power detection components is 1-3 cm. The power detection component includes a power detection ring 2 and a connecting wire electrically connected to the power detection ring 2. In this embodiment, the diameters of the power detection rings 2 are all different, so as to detect grounding wires of different specifications. In order to facilitate the grounding wire to enter the power detection ring 2, the power detection ring 2 is split into two semi-circular parts 201, and the two semi-circular parts 201 are respectively located in the two semi-cylindrical bodies 101. In the normal state, the two semi-circular parts 201 are in a separated state. When the grounding wire is located in the detection sleeve 1, by splicing the two semi-circular parts 201 that match its specifications together to surround the grounding wire, so as to detect it.

[0025] In this embodiment, insulating blocks 10 are provided on the outer circular sides of the semi-circular portions 201. A lead screw 3 is rotatably provided on the insulating block 10. One end of the lead screw 3 away from the semi-circular portion 201 is screwed to the corresponding semi-cylindrical body 101, and the position of the semi-circular portion 201 is limited by the lead screw 3. At the same time, the lead screw 3 moves in a threaded manner with the semi-cylindrical body 101 to change the distance between two opposite semi-circular portions 201. When two opposite semi-circular portions 201 are in relatively short contact, the two opposite semi-circular portions 201 form a complete power detection ring 2, so as to enable detection. At the same time, in order to prevent the corresponding semi-cylindrical body 101 from rotating when the lead screw 3 rotates, a torsion spring 4 for keeping two opposite semi-circular portions 201 concentric is sleeved on the rod body of the lead screw 3 between the semi-circular portion 201 and the semi-cylindrical body 101. One end of the torsion spring 4 is connected to the semi-circular portion 201, and the other end of the torsion spring 4 is connected to the semi-cylindrical body 101.

[0026] In this embodiment, limit blocks 5 are provided at one ends of the lead screw 3 located outside the semi-cylindrical body 101. The limit blocks 5 are cylindrical, which is convenient for the staff to twist the lead screw 3 to rotate, and at the same time prevents the lead screw 3 from falling off the semi-cylindrical body 101, playing a role in limiting it.

[0027] Embodiment 2

[0028] This embodiment provides a transmission line tower grounding evaluation system, including a data monitoring host and 4 transmission line tower grounding intelligent evaluation devices as in Embodiment 1. The 4 transmission line tower grounding intelligent evaluation devices detect the ground wires at the four corners of the power tower. The connecting wires of the power detection ring 2 in the transmission line tower grounding intelligent evaluation device are all connected to the data end of the data monitoring host, and the data monitoring host processes the detection data. Here, the data monitoring host is a computer host.

[0029] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various deformations or modifications within the scope of the claims, which does not affect the essence of the present invention.

Claims

1. The intelligent assessment device for grounding of power transmission line towers is characterized by: The invention comprises a detection sleeve (1) and a plurality of groups of power detection components for detecting grounding wires of different specifications, wherein all the power detection components are arranged in the detection sleeve (1) and are arranged in an equidistant array along the longitudinal direction thereof, wherein the detection sleeve (1) is composed of two hinged semi-cylindrical bodies (101) spliced ​​together, and the power detection components include a power detection ring (2) and a connecting line electrically connected to the power detection ring (2), and the power detection ring (2) is composed of two semi-circular parts (201), and the two semi-circular parts (201) are located one by one on the two semi-cylindrical bodies. A screw rod (3) is rotatably provided in the body (101) and on the outer side of the semicircular portion (201); one end of the screw rod (3) away from the semicircular portion (201) is screwed to the corresponding semi-cylindrical body (101); the rod body of the screw rod (3) located between the semicircular portion (201) and the semi-cylindrical body (101) is sleeved with a torsion spring (4) for keeping the two relatively semicircular portions (201) concentric; one end of the torsion spring (4) is connected to the semicircular portion (201), and the other end of the torsion spring (4) is connected to the semi-cylindrical body (101).

2. The intelligent evaluation device for grounding of a transmission line tower according to claim 1, characterized in that: The semicircular portion (201) is connected to the screw rod (3) via an insulating block (10).

3. The intelligent evaluation device for grounding of transmission line towers according to claim 1, characterized in that: A groove (7) is formed on one end surface of a semi-cylindrical body (101), and a convex block (8) which can be inserted into the groove (7) is formed on one end surface of the other semi-cylindrical body (101). A rotating rod (9) arranged longitudinally along the groove (7) is passed through the convex block (8), and two ends of the rotating rod (9) are rotatably connected to the two end walls of the groove (7) in sequence.

4. The intelligent evaluation device for grounding of transmission line towers according to claim 1, characterized in that: A clamping groove is provided on the end side of one semi-cylindrical body (101) facing away from the hinged end, and a clamping block is provided on the end side of the other semi-cylindrical body (101) facing away from the hinged end for clamping with the clamping groove.

5. The intelligent evaluation device for grounding of transmission line towers according to claim 1, characterized in that: The distance between two adjacent power detection components is 1-3 cm.

6. The intelligent evaluation device for grounding of transmission line towers according to claim 1, characterized in that: A limit block (5) is provided at one end of the screw rod (3) located outside the semi-cylindrical body (101).

7. The intelligent evaluation device for grounding of transmission line towers according to claim 1, characterized in that: An insulating layer is embedded on the outer circumferential side of the semi-cylindrical body (101).

8. Transmission line tower grounding assessment system, characterized by: It comprises a data monitoring host and four intelligent evaluation devices for transmission line tower grounding as claimed in any one of claims 1 to 7, wherein the connecting wires of the power detection ring (2) are all connected to the data terminal of the data monitoring host.

Images