High-voltage cable accumulated snow thickness detection device

Abstract

The invention belongs to the technical field of high-voltage cable accumulated snow thickness detection, and particularly relates to a high-voltage cable accumulated snow thickness detection device which comprises a mounting frame, the mounting frame is mounted on an iron tower, and the upper side wall of the mounting frame is fixedly connected with a controller. According to the invention, when snowflakes fall on the surface of the sample wire, the vibration of the high-voltage cable under strong wind can be simulated, so that the sample wire and the high-voltage cable are in similar vibration frequency and amplitude, the accuracy of the thickness detection of the accumulated snow on the surface of the high-voltage cable is further improved, and when the sample wire is utilized to simulate the high-voltage cable, the detection precision is improved. According to the device, the sample line can keep different sags to bear accumulated snow, the distribution condition of snowflakes on the surfaces of the sample lines with different sags is fully simulated, and when the thickness of the accumulated snow on the surfaces of the sample lines with different sags is detected, the moving path of the laser detection element can be changed along with the change of the sags of the sample line, so that the measurement precision is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of high-voltage line snow thickness detection, and particularly relates to a high-voltage cable snow thickness detection device. BACKGROUND

[0002] Power supply interruption caused by ice and snow disasters of high-voltage lines often occurs in winter. Snow covers the high-voltage lines in winter. Since the high-voltage lines are on high towers, and many towers are in mountainous areas where traffic is inconvenient, it is difficult for people to learn about the snow cover of high-voltage lines in a timely manner. For example, a high-voltage line snow thickness monitoring and early warning device is disclosed in patent publication No. CN113405479B.

[0003] The existing detection device measures the snow thickness by horizontally erecting a sample line on the tower, and calculates the snow cover of the high-voltage cable based on the snow thickness. However, the actual high-voltage cable has a large span and a large weight, and forms a natural sag between two towers. The sag increases significantly with the increase of the span. The sample line always maintains a straight state, resulting in a significant difference in the distribution form of the snow under the action of gravity. This structural difference makes the measurement result of the sample line unable to accurately reflect the actual snow thickness of the cable, thereby reducing the detection accuracy.

[0004] Therefore, a high-voltage cable snow thickness detection device is proposed to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a high-voltage cable snow thickness detection device to solve the above problems.

[0006] To achieve the above purpose, the application adopts the following technical scheme: a high-voltage cable snow thickness detection device, comprising a mounting frame installed on a tower, an upper side wall of the mounting frame being fixedly connected with a controller, further comprising:

[0007] A support rod is fixedly connected to the upper side wall of the mounting frame. The upper end of the support rod is connected with a support plate through a vibration assembly. The upper side wall of the support plate is fixedly connected with a plurality of support frames. The support frame is a reverse U-shaped structure. The front end of the support frame is fixedly connected with a connecting seat. The same sample line is fixedly connected between adjacent two connecting seats. The radii of the sample lines at different positions are different.

[0008] The screw rod driving module is fixedly connected to the upper side wall of the mounting frame through a support, the moving end of the screw rod driving module is arranged downward, and a moving frame is fixedly connected to the moving end, the upper side wall of the moving frame is fixedly connected with a lifting electric push rod, the moving end of the lifting electric push rod is fixedly connected with a lifting plate, the upper side wall of the lifting plate is connected with a laser generator and a laser receiver through supports respectively at the front and rear sides, the upper side wall of the lifting plate is fixedly connected with an adjusting assembly, and the adjusting assembly is electrically connected with the lifting electric push rod through a controller.

[0009] The position assembly is fixedly connected to the lower side wall of the mounting frame and is used for determining the specific position where the snow thickness is too high.

[0010] Preferably, the vibration assembly comprises a vibration box fixedly connected to the upper end of the supporting rod, a vibration rod movably inserted into the front side wall of the vibration box, the front end of the vibration rod extending out of the vibration box and fixedly connected with the supporting plate, the rear end of the vibration rod located in the vibration box and fixedly connected with a sliding plate, a same spring fixedly connected between the sliding plate and the vibration box, a vibration motor fixedly connected to the inner wall of the vibration box and located behind the sliding plate, a vibration electric push rod fixedly connected to the output end of the vibration motor, and an arc-shaped seat fixedly connected to the moving end of the vibration electric push rod.

[0011] Preferably, the adjusting assembly comprises an adjusting cylinder fixedly connected to the upper side wall of the lifting plate, an adjusting plate fixedly connected to the lower side inner wall of the adjusting cylinder through a spring, a conductive frame fixedly connected to the lower side wall of the adjusting plate, the conductive frame being electrically connected with an external power supply, an upper trigger plate and a lower trigger plate inlaid in the adjusting cylinder, the upper trigger plate being electrically connected with the forward circuit of the lifting electric push rod through a controller, the lower trigger plate being electrically connected with the reverse circuit of the lifting electric push rod through the controller, a vertical rod fixedly connected to the upper side wall of the adjusting plate, the upper end of the vertical rod extending out of the adjusting cylinder and fixedly connected with a contact roller, and the contact roller located between the laser generator and the laser receiver.

[0012] Preferably, the position assembly comprises a position plate fixedly connected to the lower side wall of the mounting frame, the lower side wall of the position plate is provided with a placing groove, a plurality of positioning plates are fixedly connected to the upper side groove wall of the placing groove, the positioning plates are electrically connected through the current sensor and the controller, the lower side wall of the moving frame is fixedly connected with a position rod, the side wall of the mounting frame is provided with a sliding opening matched with the position rod, the rear end of the position rod is located in the placing groove and is fixedly connected with a positioning block matched with the positioning plate, the positioning block is electrically connected with the external power supply, the upper side wall of the moving frame is fixedly connected with a positioning cylinder, a positioning pin is movably inserted into the positioning cylinder, the upper end of the positioning pin is fixedly connected with the lifting plate, the lower end of the positioning pin is fixedly connected with a communication frame through a support, the communication frame is electrically connected with the external power supply, the inner wall of the positioning cylinder is inlaid with a resistance plate, and the upper end of the resistance plate is electrically connected through the current sensor and the controller.

[0013] Preferably, the left and right side groove walls of the placing groove are provided with horizontal grooves, and a plurality of blocking plates are connected to the inner walls of the horizontal grooves through springs, and the lower side walls of the blocking plates are fixedly connected with triangular seats, and the front and rear rod walls of the position rod are fixedly connected with conical seats matched with the triangular seats.

[0014] Preferably, the lower side wall of the lifting plate is fixedly connected with a telescopic air bag, the lower end of the telescopic air bag is fixedly connected with the upper side wall of the positioning cylinder, and the positioning pin is located in the telescopic air bag.

[0015] Preferably, the upper side wall of the mounting frame is fixedly connected with a protective cover, the controller is located in the protective cover, and the left end of the connecting seat located at the leftmost side is located in the protective cover.

[0016] Preferably, the front side wall of the vibration box is fixedly connected with a snow removal ring, and the vibration rod passes through the snow removal ring.

[0017] Compared with the prior art, the high-voltage cable snow thickness detection device has the following advantages:

[0018] 1. By arranging the vibration assembly, when snowflakes fall on the sample line surface, the vibration of the high-voltage cable under strong wind can be simulated, so that the sample line and the high-voltage cable are at similar vibration frequency and amplitude, and the precision of the high-voltage cable surface snow thickness detection is further improved.

[0019] 2. By arranging the adjusting assembly, when the sample line is used to simulate the high-voltage cable, the sample line can maintain different sag to receive snow, fully simulate the distribution of snowflakes on the surface of sample lines with different sag, and when the thickness of the snow on the surface of the sample line with different sag is detected, the moving path of the laser detection element can be changed with the change of the sag of the sample line, so as to ensure the measurement accuracy.

[0020] 3. When detecting the thickness of the snow on the surface of the different arc sag sample lines, the position assembly is arranged, after detecting that the snow on the surface of the sample line exceeds the set height, the area exceeding the height is automatically displayed to the electric power personnel, the electric power personnel can quickly find the corresponding position of the high-voltage cable and clean the snow, and the convenience of the work of the electric power personnel is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of a high-voltage cable snow thickness detection device provided by the application;

[0022] Figure 2 is a sectional view of the high-voltage cable snow thickness detection device provided by the application; Figure 1

[0023] Figure 3 is a structural schematic diagram of a vibration assembly in the high-voltage cable snow thickness detection device provided by the application;

[0024] Figure 4 is a surface structure schematic diagram of a lifting plate in the high-voltage cable snow thickness detection device provided by the application;

[0025] Figure 5 is a left sectional view of a position plate in the high-voltage cable snow thickness detection device provided by the application;

[0026] Figure 6 is a sectional view of a positioning cylinder in the high-voltage cable snow thickness detection device provided by the application;

[0027] Figure 7 is a bottom view of a position rod and a blocking plate in the high-voltage cable snow thickness detection device provided by the application.

[0028] In the figure: 1 mounting frame, 2 controller, 3 support rod, 4 support plate, 5 support frame, 6 connecting seat, 7 sample line, 8 lead screw drive module, 9 moving frame, 10 lifting electric push rod, 11 lifting plate, 12 laser generator, 13 laser receiver, 14 vibration assembly, 141 vibration box, 142 vibration rod, 15 sliding plate, 16 vibration motor, 17 vibration electric push rod, 18 arc-shaped seat, 19 adjusting assembly, 191 adjusting cylinder, 192 adjusting plate, 20 conductive frame, 21 upper trigger plate, 22 lower trigger plate, 23 vertical rod, 24 contact roller, 25 position assembly, 251 position plate, 252 placing groove, 26 positioning plate, 27 position rod, 28 positioning block, 29 positioning cylinder, 30 positioning pin, 31 communication frame, 32 resistance plate, 33 transverse groove, 34 blocking plate, 35 triangular seat, 36 conical seat, 37 telescopic air bag, 38 protective cover, 39 snow removal ring. DETAILED DESCRIPTION

[0029] ​The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0030] As shown in the drawings, Figures 1-7 A high-voltage cable snow thickness detection device, comprising a mounting frame 1 installed on a tower, a controller 2 fixedly connected to the upper side wall of the mounting frame 1, a protective cover 38 fixedly connected to the upper side wall of the mounting frame 1, the controller 2 being located in the protective cover 38, the left end of the leftmost connecting seat 6 being located in the protective cover 38, and further comprising:

[0031] A support rod 3 fixedly connected to the upper side wall of the mounting frame 1, the upper end of the support rod 3 being connected with a support plate 4 through a vibration assembly 14, the upper side wall of the support plate 4 being fixedly connected with a plurality of support frames 5, the support frame 5 being a reverse U-shaped structure, the front end of the support frame 5 being fixedly connected with a connecting seat 6, the same sample line 7 being fixedly connected between adjacent two connecting seats 6, the radii of the sample lines 7 at different positions being different;

[0032] A lead screw driving module 8 fixedly connected to the upper side wall of the mounting frame 1 through a support, the moving end of the lead screw driving module 8 being downwardly arranged and fixedly connected with a moving frame 9, the upper side wall of the moving frame 9 being fixedly connected with a lifting electric push rod 10, the moving end of the lifting electric push rod 10 being fixedly connected with a lifting plate 11, the upper side wall of the lifting plate 11 being connected with a laser generator 12 and a laser receiver 13 through supports respectively at the front and rear sides thereof, the upper side wall of the lifting plate 11 being fixedly connected with an adjusting assembly 19, the adjusting assembly 19 being electrically connected with the controller 2 and the lifting electric push rod 10;

[0033] A position assembly 25 fixedly connected to the lower side wall of the mounting frame 1, for determining the specific position where the snow thickness is too high.

[0034] The vibration assembly 14 comprises a vibration box 141 fixedly connected to the upper end of the support rod 3, a vibration rod 142 movably inserted into the front side wall of the vibration box 141, a snow removal ring 39 fixedly connected to the front side wall of the vibration box 141, the vibration rod 142 penetrating through the snow removal ring 39, the front end of the vibration rod 142 extending out of the vibration box 141 and being fixedly connected with the support plate 4, the rear end of the vibration rod 142 being located in the vibration box 141 and being fixedly connected with a sliding plate 15, the side wall between the vibration box 141 and the sliding plate 15 being fixedly connected with the same spring, the inner wall of the vibration box 141 being fixedly connected with a vibration motor 16 located behind the sliding plate 15, the output end of the vibration motor 16 being fixedly connected with a vibration electric push rod 17, the moving end of the vibration electric push rod 17 being fixedly connected with an arc-shaped seat 18, when snowflakes fall onto the surface of the sample line 7, the vibration of the high-voltage cable under strong wind can be simulated, so that the sample line 7 and the high-voltage cable are at similar vibration frequency and amplitude, and the accuracy of the high-voltage cable surface snow thickness detection is further improved.

[0035] The adjusting assembly 19 comprises an adjusting cylinder 191 fixedly connected to the side wall of the lifting plate 11, the inner wall of the lower side of the adjusting cylinder 191 is fixedly connected with an adjusting plate 192 through a spring, the lower side wall of the adjusting plate 192 is fixedly connected with a conductive frame 20, the conductive frame 20 is electrically connected with an external power supply, the inside of the adjusting cylinder 191 is inlaid with an upper trigger plate 21 and a lower trigger plate 22, the upper trigger plate 21 is electrically connected with the positive circuit of the lifting electric push rod 10 through the controller 2, the lower trigger plate 22 is electrically connected with the reverse circuit of the lifting electric push rod 10 through the controller 2, the upper side wall of the adjusting plate 192 is fixedly connected with a vertical rod 23, the upper end of the vertical rod 23 extends out of the adjusting cylinder 191 and is fixedly connected with a contact roller 24, the contact roller 24 is located between the laser generator 12 and the laser receiver 13, when the sample line 7 is used to simulate the high-voltage cable, the sample line 7 can be kept in different sag to receive snow, the distribution of the snow on the surface of the sample line 7 with different sag can be fully simulated, and when the thickness of the snow on the surface of the sample line 7 with different sag is detected, the moving path of the laser detection element can be changed with the change of the sag of the sample line 7, so that the measurement accuracy is ensured.

[0036] The position assembly 25 comprises a position plate 251 fixedly connected to the lower side wall of the mounting frame 1, the lower side wall of the position plate 251 is provided with a placing groove 252, a plurality of positioning plates 26 are fixedly connected to the upper side groove wall of the placing groove 252, the positioning plates 26 are electrically connected with the current sensor and the controller 2, the lower side wall of the moving frame 9 is fixedly connected with a position rod 27, the side wall of the mounting frame 1 is provided with a sliding opening matched with the position rod 27, the rear end of the position rod 27 is located in the placing groove 252 and is fixedly connected with a positioning block 28 matched with the positioning plate 26, the positioning block 28 is electrically connected with an external power supply, the upper side wall of the moving frame 9 is fixedly connected with a positioning cylinder 29, the upper side wall of the positioning cylinder 29 is movably inserted with a positioning pin 30, the upper end of the positioning pin 30 is fixedly connected with the lifting plate 11, the lower end of the positioning pin 30 is fixedly connected with a communication frame 31 through a support, the communication frame 31 is electrically connected with an external power supply, the inner wall of the positioning cylinder 29 is inlaid with a resistance plate 32, the upper end of the resistance plate 32 is electrically connected with the current sensor and the controller 2, the lower side wall of the lifting plate 11 is fixedly connected with a telescopic air bag 37, the lower end of the telescopic air bag 37 is fixedly connected with the upper side wall of the positioning cylinder 29, and the positioning pin 30 is located in the telescopic air bag 37, when the thickness of the snow on the surface of the sample line 7 with different sag is detected, the area exceeding the height can be automatically displayed to the electric power personnel after the snow on the surface of the sample line 7 is detected to exceed the set height, so that the electric power personnel can quickly find the corresponding position of the high-voltage cable and clean the snow, and the convenience of the work of the electric power personnel is improved.

[0037] The left and right two side groove walls of the placing groove 252 are provided with horizontal grooves 33, and the inner walls of the horizontal grooves 33 are connected with a plurality of blocking plates 34 through springs; the lower side wall of the blocking plate 34 is fixedly connected with a triangular seat 35; the front and rear side rod walls of the position rod 27 are fixedly connected with conical seats 36 matched with the triangular seat 35, so that the positioning plate 26 can be protected and the attachment of impurities is avoided.

[0038] The operation principle of the present application is described as follows: the sample lines 7 with different sag are installed on the surface of the connecting seat 6, and then the detection device is installed on the high-voltage iron tower; when the snow falls on the surface of the high-voltage cable, the snow also falls on the sample lines 7 with different sag; after the power personnel know that the weather continues to snow through the weather forecast, the power personnel can send an electric signal to the controller 2 through the control switch below the iron tower; after the controller 2 receives the electric signal, the controller 2 controls the work of the lead screw driving module 8; the lead screw driving module 8 drives the moving frame 9 to move to the right; referring to Figure 2 In the moving process of the moving frame 9, the lifting plate 11, the laser generator 12, the laser receiver 13 and the contact roller 24 are driven to move to the right by the lifting electric push rod 10; in the moving process of the contact roller 24, the contact roller 24 contacts the connecting seat 6 and the sample line 7 respectively; the controller 2 also controls the work of the laser generator 12 and the laser receiver 13, so that the laser signal emitted by the laser generator 12 is received by the laser receiver 13.

[0039] When the contact roller 24 moves in the process, the sample line 7 sag changes, under the action of the sample line 7 sag, the contact roller 24 will first drive the vertical rod 23, the adjusting plate 192 and the conductive frame 20 to move downward together, the conductive frame 20 will contact with the lower trigger plate 22 in the process of moving downward, the conductive frame 20 and the external power supply are electrically connected, the lower trigger plate 22 is electrically connected with the reverse circuit of the lifting electric push rod 10 through the controller 2, when the two contact, the external current will be transmitted to the reverse circuit of the lifting electric push rod 10 through the conductive frame 20 and the lower trigger plate 22, so that the lifting electric push rod 10 drives the lifting plate 11, the laser generator 12, the laser receiver 13 and the adjusting cylinder 191 to move upward together, so that the laser beam emitted by the laser generator 12 is always located 3cm above the sample line 7, when the snow height on the sample line 7 surface exceeds the set threshold, the laser signal emitted by the laser generator 12 will be blocked by the snow (the support rod 3 is transparent structure, which will not hinder the laser beam), when the laser receiver 13 cannot receive the laser signal, it indicates that the snow height on the sample line 7 is too high and needs to be cleaned in time, so that the controller 2 controls the communication frame 31 and the positioning block 28 to be electrically connected with the external power supply, the communication frame 31 changes the height in the process of working with the movement of the lifting electric push rod 10 and the lifting plate 11, and the communication frame 31 and the resistance plate 32 are always in contact, when the communication frame 31 contacts with the external power supply, the external current will be transmitted to the controller 2 through the communication frame 31 and the resistance plate 32, and when the snow height on the sample line 7 surface exceeds the standard position is low (the middle part of the sample line 7 with sag is the lowest), the communication frame 31 will contact with the position close to the lower end of the resistance plate 32, the upper end of the resistance plate 32 is electrically connected with the controller 2 through the current sensor, the controller 2 can judge the position of the sample line 7 with thick snow by detecting the size of the current intensity transmitted by the resistance plate 32, for example, when the snow on the lower position of the sample line 7 is thicker, the communication frame 31 will contact with the position close to the lower end of the resistance plate 32, so that the resistance in the circuit of the controller 2 becomes larger, under the condition that the external voltage is constant, the current intensity detected by the controller 2 is smaller, at the same time, the moving frame 9 will drive the positioning block 28 to move through the position rod 27 in the process of moving, and the position rod 27 can make the blocking plates 34 on both sides move to both sides through the cooperation of the conical seat 36 and the inclined surface of the triangular seat 35, so as to avoid hindering the movement of the position rod 27, the positioning block 28 will contact with different positioning plates 26 in the process of moving, the positioning plate 26 is electrically connected with the controller 2, the external current will be transmitted to the controller 2 through the positioning block 28 and the corresponding positioning plate 26 when the positioning block 28 is connected with the external power supply, the controller 2 can judge which position of which sample line 7 is detected by analyzing the position of the corresponding positioning plate 26, the position of the sample line 7 with thick snow can be quickly found by determining the horizontal and vertical positions, the controller 2 transmits the detection result to the receiving end in the hand of the power personnel through the signal line,The electric power personnel finds the corresponding high-voltage cable corresponding area according to the detection result, and clears the snow,

[0040] When it snows, the controller 2 detects the wind force through an external wind force sensor, and controls the vibration electric push rod 17 to work according to the wind force, so that the vibration electric push rod 17 drives the arc-shaped seat 18 to move to a set position, and controls the vibration motor 16 to rotate at a certain speed. The vibration motor 16 drives the vibration electric push rod 17 and the arc-shaped seat 18 to rotate, continuously extrudes the sliding plate 15 by the arc-shaped seat 18, and drives the support plate 4, the support frame 5 and the plurality of sample lines 7 to vibrate together through the vibration rod 142. The sample line 7 and the high-voltage cable are in similar vibration frequency and amplitude, the snow thickness is detected under the same vibration condition, and the precision of the high-voltage cable surface snow thickness detection is further improved.

[0041] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for detecting snow thickness on a high-voltage cable, comprising a mounting frame (1), wherein the mounting frame (1) is mounted on an iron tower, and a controller (2) is fixedly connected to the upper side wall of the mounting frame (1), characterized in that: Also includes: A support rod (3) is fixedly connected to the upper side wall of the mounting frame (1); the upper end of the support rod (3) is connected to a support plate (4) via a vibration assembly (14); the upper side wall of the support plate (4) is fixedly connected to a plurality of support frames (5); the support frames (5) are of an inverted U-shaped structure; the front end of the support frames (5) is fixedly connected to a connecting seat (6); the same sample line (7) is fixedly connected between two adjacent connecting seats (6); and the curvature of the sample line (7) at different positions is different; A screw drive module (8) is fixedly connected to the upper side wall of the mounting frame (1) through a bracket, the movable end of the screw drive module (8) is arranged downward and is fixedly connected to the moving frame (9), the upper side wall of the moving frame (9) is fixedly connected to a lifting electric push rod (10), the movable end of the lifting electric push rod (10) is fixedly connected to a lifting plate (11), the front and rear sides of the upper side wall of the lifting plate (11) are respectively connected to a laser generator (12) and a laser receiver (13) through brackets, the upper side wall of the lifting plate (11) is fixedly connected to an adjustment component (19), and the adjustment component (19) is electrically connected to the lifting electric push rod (10) through a controller (2); The position component (25) is fixedly connected to the lower side wall of the mounting frame (1) and is used to determine the specific location where the snow thickness is too high.

2. A high-voltage cable snow thickness detection device according to claim 1, characterized in that: The vibration assembly (14) includes a vibration box (141) fixedly connected to the upper end of the support rod (3); a vibration rod (142) is movably inserted into the front side wall of the vibration box (141); the front end of the vibration rod (142) extends out of the vibration box (141) and is fixedly connected to the support plate (4); the rear end of the vibration rod (142) is located in the vibration box (141) and is fixedly connected to a sliding plate (15); the side wall between the sliding plate (15) and the vibration box (141) is fixedly connected to the same spring; the inner wall of the vibration box (141) is fixedly connected to a vibration motor (16) located behind the sliding plate (15); the output end of the vibration motor (16) is fixedly connected to a vibration electric push rod (17); the movable end of the vibration electric push rod (17) is fixedly connected to an arc seat (18).

3. The device for detecting snow thickness on a high-voltage cable according to claim 1, characterized in that: The regulating assembly (19) comprises a regulating cylinder (191) fixedly connected to the upper side wall of the lifting plate (11); the lower inner wall of the regulating cylinder (191) is fixedly connected to the regulating plate (192) via a spring; the lower side wall of the regulating plate (192) is fixedly connected to a conductive frame (20); the conductive frame (20) is electrically connected to an external power supply; an upper trigger plate (21) and a lower trigger plate (22) are embedded in the interior of the regulating cylinder (191); the upper trigger plate (21) is connected to the lower side wall of the regulating plate (192); The lower trigger plate (22) is electrically connected to the forward circuit of the controller (2) and the lifting electric push rod (10) through the controller (2) and the reverse circuit of the lifting electric push rod (10). The upper side wall of the adjustment plate (192) is fixedly connected to a vertical rod (23). The upper end of the vertical rod (23) extends out of the adjustment cylinder (191) and is fixedly connected to a contact roller (24). The contact roller (24) is located between the laser generator (12) and the laser receiver (13).

4. The device for detecting snow thickness on a high-voltage cable according to claim 1, characterized in that: The position assembly (25) includes a position plate (251) fixedly connected to the lower side wall of the mounting frame (1), the lower side wall of the position plate (251) is provided with a placement groove (252), the upper side groove wall of the placement groove (252) is fixedly connected with a plurality of positioning plates (26), the positioning plates (26) are electrically connected to the controller (2) through the current sensor, the lower side wall of the movable frame (9) is fixedly connected with a position rod (27), the side wall of the mounting frame (1) is provided with a sliding opening that matches the position rod (27), the rear end of the position rod (27) is located in the placement groove (252) and is fixedly connected with the positioning plate ( 26) mutually matching positioning blocks (28), the positioning blocks (28) are electrically connected to an external power supply, the upper side wall of the movable frame (9) is fixedly connected to a positioning cylinder (29), the upper side wall of the positioning cylinder (29) is movably connected to a positioning pin (30), the upper end of the positioning pin (30) is fixedly connected to the lifting plate (11), the lower end of the positioning pin (30) is fixedly connected to a connecting frame (31) through a bracket, the connecting frame (31) is electrically connected to an external power supply, the inner wall of the positioning cylinder (29) is inlaid with a resistor plate (32), and the upper end of the resistor plate (32) is electrically connected to the controller (2) through a current sensor.

5. A high-voltage cable snow thickness detection device according to claim 4, characterized in that: The left and right side walls of the placement slot (252) are both provided with transverse slots (33), and the inner walls of the transverse slots (33) are connected to a plurality of blocking plates (34) via springs, the lower side walls of the blocking plates (34) are fixedly connected to a triangular seat (35), and the front and rear side rod walls of the position rod (27) are both fixedly connected to a conical seat (36) that matches the triangular seat (35).

6. The device for detecting snow thickness on a high-voltage cable according to claim 4, characterized in that: The lower side wall of the lifting plate (11) is fixedly connected with a telescopic airbag (37), the lower end of the telescopic airbag (37) is fixedly connected to the upper side wall of the positioning cylinder (29), and the positioning pin (30) is located in the telescopic airbag (37).

7. The device for detecting snow thickness on a high-voltage cable according to claim 1, characterized in that: The upper side wall of the mounting frame (1) is fixedly connected with a protective cover (38), the controller (2) is located in the protective cover (38), and the left end of the connecting seat (6) located on the leftmost side is located in the protective cover (38).

8. The device for detecting snow thickness on a high-voltage cable according to claim 2, characterized in that: A snow removal ring (39) is fixedly connected to the front side wall of the vibration box (141), and the vibration rod (142) passes through the snow removal ring (39).

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