Distributed fault monitoring device for power transmission line

Abstract

The utility model discloses a distributed fault monitoring device for a power transmission line, belongs to the technical field of power transmission lines, and aims to solve the problems that in the prior art, an internal wiring connector is easy to generate certain dragging force due to shaking, so that the connecting part is loosened, and the sleeving mode of the monitoring device also affects the quick disassembly of the monitoring device. Fixing seats are fixed to the lower end face of the monitoring device body, and a monitoring induction mechanism is arranged between the two fixing seats. According to the utility model, through the arrangement of the staggered clamping mechanism, the movable abutting column recovers to a state that the movable abutting column and the fixed abutting column are staggered up and down, so that the movable abutting column and the fixed abutting column can be clamped on a power transmission line with two fixed ends in a staggered manner; and the power transmission line locally protrudes upwards and sinks downwards in sequence, so that the firmness and skid resistance of the inner line of the monitoring induction mechanism are enhanced, and the trouble of displacement of the inner line of the monitoring induction mechanism caused by external force influence is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of power transmission lines, and in particular relates to a distributed fault monitoring device for power transmission lines. Background Art

[0002] The distributed fault monitoring device for transmission lines is directly installed on the transmission line conductors and connected to the conductors at the same potential. It is used in the fields of fault section positioning, fault point precise positioning, fault cause identification, etc.

[0003] However, the distributed fault monitoring device for transmission lines is generally directly mounted on the transmission lines, which may easily cause the transmission lines to shake due to external influences and cause the internal wires of the device structure to shift. In this way, the internal wiring connectors are prone to a certain pulling force due to the shaking, and there is a risk of the connection parts loosening. In addition, the mounting method of the monitoring device also affects its rapid disassembly, which makes the adjustment of distributed fault monitoring at different positions of the transmission line more cumbersome.

[0004] Therefore, a distributed fault monitoring device for power transmission lines is needed to solve the problem in the prior art that the internal wiring connector is easily loosened due to a certain pulling force generated by vibration, and the installation method of the monitoring device also affects its quick disassembly. Utility Model Content

[0005] The purpose of the utility model is to provide a distributed fault monitoring device for a power transmission line to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a distributed fault monitoring device for a power transmission line, comprising a monitoring device body, a fixed seat is fixed on the lower end surface of the monitoring device body, a monitoring sensing mechanism is arranged between the two fixed seats, and one end of the two monitoring sensing mechanisms is provided with a staggered clamping mechanism, the staggered clamping mechanism comprises a positioning sleeve, a lifting slide, a lifting guide block, a movable support column, an anti-skid rubber sleeve and a fixed support column, the two positioning sleeves are respectively fixed on one end surface of the two fixed seats, the lifting slide is slidably connected to the inside of the positioning sleeve, the lifting guide block is fixed to the middle of one side surface of the lifting slide close to the inner side wall of the positioning sleeve, the movable support column is fixed to one side surface of the lifting slide, the fixed support column is fixed to one side inner wall of the positioning sleeve, the anti-skid rubber sleeve is sleeved and fixed on the surface of the movable support column and the fixed support column, the surface of the lifting slide is provided with a height adjustment mechanism, the height adjustment mechanism comprises a telescopic slide rod and a reset spring, the telescopic slide rod is fixed at the lower end surface of the lifting guide block, and the reset spring is sleeved on the surface of the telescopic slide rod.

[0007] It should be noted in the scheme that a lifting guide groove is opened on the inner wall of one side of the positioning sleeve, the lifting guide block is slidably connected in the lifting guide groove of the positioning sleeve, the telescopic slide rod is slidably connected to the inside of the positioning sleeve, and a pulling handle is fixed to one end of the telescopic slide rod extending out of the positioning sleeve.

[0008] It is further worth noting that the upper end of the return spring is fixed to the lower end surface of the lifting guide block, and the lower end of the return spring is fixed to the inner bottom wall of the positioning sleeve.

[0009] It should be further explained that a guide slot is provided on an inner wall of one side of the positioning sleeve, a guide slider is slidably connected in the guide slot of the positioning sleeve, and one end of the guide slider is fixed on a side surface of the lifting slide.

[0010] As a preferred embodiment, the movable stop column is arranged above the fixed stop column, and the movable stop column and the fixed stop column are arranged alternately, and a positioning opening is opened inside the positioning sleeve.

[0011] As a preferred embodiment, a threading hole is formed through one side surface of the fixing seat, a display screen is fixed to the front surface of the monitoring device body, and control buttons are provided on the front surface of the monitoring device body below the display screen.

[0012] Compared with the prior art, the distributed fault monitoring device for power transmission lines provided by the utility model has at least the following beneficial effects:

[0013] ⑴ Through the staggered clamping mechanism, the movable post is restored to the state of being displaced up and down with the fixed post. The movable post and the fixed post arranged in this way can be staggered and clamped on the transmission line fixed at both ends. The transmission line enhances the firmness and anti-slip property of the inner line of the monitoring sensing mechanism because the transmission line is partially convex and concave in sequence, thereby reducing the trouble of displacement of the inner line of the monitoring sensing mechanism due to external force.

[0014] ⑵ Through the height adjustment mechanism, the misaligned clamping state of the movable support column and the fixed support column can be cancelled by pulling the telescopic slide rod and overcoming the elastic force of the reset spring. In this way, the position of the monitoring sensing mechanism on the transmission line can be adjusted to adapt to the flexible distribution monitoring of the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 This is a three-dimensional diagram of the positioning sleeve structure of the utility model;

[0017] Figure 3 This is a three-dimensional diagram of the cross-sectional structure of the positioning sleeve of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the return spring structure of the utility model.

[0019] In the figure: 1. Monitoring device body; 2. Display screen; 3. Control button; 4. Fixed seat; 5. Monitoring sensor mechanism; 6. Threading port; 7. Positioning sleeve; 8. Guide slide groove; 9. Guide slider; 10. Lifting slide plate; 11. Lifting guide block; 12. Lifting guide groove; 13. Telescopic slide rod; 14. Reset spring; 15. Pull-out handle; 16. Movable support column; 17. Anti-slip rubber sleeve; 18. Fixed support column; 19. Positioning port. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with embodiments.

[0021] See also Figure 1-4 The utility model provides a distributed fault monitoring device for a power transmission line, including a monitoring device body 1, a fixing seat 4 is fixed on the lower end surface of the monitoring device body 1, a monitoring sensing mechanism 5 is arranged between two fixing seats 4, one end of the two monitoring sensing mechanisms 5 is provided with a staggered clamping mechanism, the staggered clamping mechanism includes a positioning sleeve 7, a lifting slide 10, a lifting guide block 11, a movable support column 16, an anti-slip rubber sleeve 17 and a fixed support column 18, the two positioning sleeves 7 are respectively fixed on one end surface of the two fixing seats 4, the lifting slide 10 is slidably connected to the inner surface of the positioning sleeve 7 The lifting guide block 11 is fixed to the middle of one side surface of the lifting slide 10 close to the inner side wall of the positioning sleeve 7, the movable support column 16 is fixed to one side surface of the lifting slide 10, the fixed support column 18 is fixed to one side inner wall of the positioning sleeve 7, the anti-slip rubber sleeve 17 is sleeved and fixed on the surfaces of the movable support column 16 and the fixed support column 18, and the surface of the lifting slide 10 is provided with a height adjustment mechanism, the height adjustment mechanism includes a telescopic slide rod 13 and a reset spring 14, the telescopic slide rod 13 is fixed at the lower end surface of the lifting guide block 11, and the reset spring 14 is sleeved on the surface of the telescopic slide rod 13.

[0022] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth specifically explaining that a lifting guide groove 12 is opened on the inner wall of one side of the positioning sleeve 7, the lifting guide block 11 is slidably connected in the lifting guide groove 12 of the positioning sleeve 7, the telescopic slide rod 13 is slidably connected to the inside of the positioning sleeve 7, and a pulling handle 15 is fixed to one end of the telescopic slide rod 13 extending out of the positioning sleeve 7.

[0023] Further Figure 3 As shown, it is worth to explain in detail that the upper end of the reset spring 14 is fixed on the lower end surface of the lifting guide block 11, and the lower end of the reset spring 14 is fixed on the inner bottom wall of the positioning sleeve shell 7.

[0024] This scheme has the following working process: before use, pull the pull handle 15 downward to drive the telescopic slide bar 13 to slide on the positioning sleeve 7 and drive the lifting slide plate 10 to descend and compress the reset spring 14 until the movable support column 16 and the fixed support column 18 are at the same height, and finally the transmission line passes through the positioning sleeve 7 on the two fixed seats 4, and at the same time, the transmission line passes through the monitoring sensing mechanism 5 of the monitoring device from the threading port 6. The distributed fault monitoring device for the transmission line is directly installed on the transmission line conductor, and the internal wiring of the monitoring sensing mechanism 5 is connected to the conductor with the same potential. After the pull handle 15 is released, the lifting slide plate 10 is automatically reset under the action of the rebound force of the reset spring 14, so that the movable support column 16 returns to the state of being misaligned with the fixed support column 18 up and down. The movable support column 16 and the fixed support column 18 arranged in this way can be staggered and clamped on the transmission line fixed at both ends, and the transmission line is enhanced because the local parts are convex upward and concave downward in turn, thereby enhancing the firmness and anti-slip properties of the inner line of the monitoring sensing mechanism 5, thereby reducing the trouble of displacement of the inner line of the monitoring sensing mechanism 5 due to external force.

[0025] According to the above working process, it can be known that the movable support column 16 returns to the state of being misaligned with the fixed support column 18. The movable support column 16 and the fixed support column 18 arranged in this way can be staggered and clamped on the power transmission line fixed at both ends. Moreover, the power transmission line enhances the firmness and anti-slip property of the inner line of the monitoring sensing mechanism 5 because the local parts bulge upward and sink downward in turn, thereby reducing the trouble of displacement of the inner line of the monitoring sensing mechanism 5 due to external force.

[0026] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth specifically explaining that a guide slot 8 is provided on the inner wall of one side of the positioning sleeve 7, a guide slider 9 is slidably connected in the guide slot 8 of the positioning sleeve 7, and one end of the guide slider 9 is fixed on a side surface of the lifting slide 10.

[0027] Further as Figure 4 As shown, it is worth explaining in detail that the movable support column 16 is arranged above the fixed support column 18, and the movable support column 16 and the fixed support column 18 are staggered, and a positioning port 19 is opened inside the positioning sleeve 7. During use, the misaligned clamping state of the movable support column 16 and the fixed support column 18 can be cancelled by pulling the telescopic slide rod 13 and overcoming the elastic force of the reset spring 14. In this way, the position of the monitoring sensing mechanism 5 on the transmission line can be adjusted to adapt to the flexible distribution monitoring of the transmission line.

[0028] Further as Figure 1 As shown, it is worth explaining in detail that a threading hole 6 is opened through one side surface of the fixing seat 4, a display screen 2 is fixed to the front surface of the monitoring device body 1, and a control button 3 is provided on the front surface of the monitoring device body 1 below the display screen 2.

[0029] In summary: the movable support column 16 is restored to a state of being misaligned with the fixed support column 18. The movable support column 16 and the fixed support column 18 arranged in this way can be staggered and clamped on the power transmission line fixed at both ends, and the power transmission line is enhanced in a firm and anti-slip manner because the parts of the transmission line are convex upward and concave downward in sequence, thereby reducing the trouble of displacement of the inner line of the monitoring sensing mechanism 5 due to external force; by pulling the telescopic slide rod 13 and overcoming the elastic force of the reset spring 14, the misaligned clamping state of the movable support column 16 and the fixed support column 18 can be cancelled, so that the position of the monitoring sensing mechanism 5 on the transmission line can be adjusted to adapt to the flexible distribution monitoring of the transmission line.

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A distributed fault monitoring device for a power transmission line, comprising a monitoring device body (1), characterized in that: A fixing seat (4) is fixed on the lower end surface of the monitoring device body (1), a monitoring sensing mechanism (5) is arranged between the two fixing seats (4), and one end of the two monitoring sensing mechanisms (5) is provided with a staggered clamping mechanism, the staggered clamping mechanism comprises a positioning sleeve (7), a lifting slide plate (10), a lifting guide block (11), a movable support column (16), an anti-slip rubber sleeve (17) and a fixed support column (18), the two positioning sleeves (7) are respectively fixed on one end surface of the two fixing seats (4), the lifting slide plate (10) is slidably connected to the inside of the positioning sleeve (7), and the lifting guide block (11) is fixed on the lifting slide plate (1 0) is located in the middle of a side surface close to the inner wall of the positioning sleeve (7), the movable support column (16) is fixed to a side surface of the lifting slide plate (10), the fixed support column (18) is fixed to an inner wall of one side of the positioning sleeve (7), the anti-slip rubber sleeve (17) is sleeved and fixed on the surfaces of the movable support column (16) and the fixed support column (18), and a height adjustment mechanism is provided on the surface of the lifting slide plate (10), the height adjustment mechanism comprises a telescopic slide rod (13) and a reset spring (14), the telescopic slide rod (13) is fixed to the lower end surface of the lifting guide block (11), and the reset spring (14) is sleeved on the surface of the telescopic slide rod (13).

2. A distributed fault monitoring device for power transmission lines according to claim 1, characterized in that: A lifting guide groove (12) is provided on an inner wall of one side of the positioning sleeve (7), the lifting guide block (11) is slidably connected in the lifting guide groove (12) of the positioning sleeve (7), the telescopic slide rod (13) is slidably connected inside the positioning sleeve (7), and a pull-out handle (15) is fixed to one end of the telescopic slide rod (13) extending out of the positioning sleeve (7).

3. A distributed fault monitoring device for power transmission lines according to claim 2, characterized in that: The upper end of the reset spring (14) is fixed to the lower end surface of the lifting guide block (11), and the lower end of the reset spring (14) is fixed to the inner bottom wall of the positioning sleeve (7).

4. A distributed fault monitoring device for power transmission lines according to claim 3, characterized in that: A guide slot (8) is provided on the inner wall of one side of the positioning sleeve (7), a guide slider (9) is slidably connected in the guide slot (8) of the positioning sleeve (7), and one end of the guide slider (9) is fixed on the surface of one side of the lifting slide plate (10).

5. A distributed fault monitoring device for power transmission lines according to claim 4, characterized in that: The movable support column (16) is arranged above the fixed support column (18), and the movable support column (16) and the fixed support column (18) are arranged alternately. A positioning opening (19) is opened inside the positioning sleeve (7).

6. A distributed fault monitoring device for power transmission lines according to claim 5, characterized in that: A threading hole (6) is formed through one side surface of the fixing seat (4), a display screen (2) is fixed to the front surface of the monitoring device body (1), and a control button (3) is provided on the front surface of the monitoring device body (1) below the display screen (2).

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