Line-dropping-preventing spacer

Abstract

The invention relates to the technical field of spacers, in particular to an anti-drop spacer and wire clamping parts, the number of the wire clamping parts is two, the two wire clamping parts are fixedly arranged on the two sides of an unmanned aerial vehicle respectively, each wire clamping part comprises two supporting plates, a rotating part, a supporting part and a clamping part, the supporting plates are fixedly arranged on the side face of the unmanned aerial vehicle, and the rotating parts are arranged on the supporting plates. The rotating part is rotationally arranged in the middle of the two supporting plates and used for adjusting the position of the rotating part, and the clamping part is arranged at the end of the rotating part and used for clamping a wire; the spacer part is composed of a glass fiber epoxy resin core rod and a silicone rubber umbrella skirt, has the characteristics of light weight, high tensile strength, high flexibility, excellent insulating property and the like, and plays a role in preventing the lead from galloping; the special operation unmanned aerial vehicle can play an important role in electric power construction, can improve the working efficiency, reduces the workload of human beings, replaces the human beings to carry out dangerous operation in some special environments, guarantees the safety of the human beings, and reduces the personnel cost.

Description

Technical Field

[0001] The invention relates to the technical field of spacer bars, in particular to an anti-dropping spacer bar. Background Art

[0002] In recent years, Henan Power Grid Company has been committed to improving the safety level of distribution network overhead lines, taking various measures to improve power supply reliability and reduce the impact of severe weather on the safe operation of distribution network lines. The number of medium-voltage overhead line faults has decreased year by year. However, frequent severe convective weather caused high-frequency large-span line wind-induced discharge faults still occupies the forefront of Henan Power Grid Company's distribution network faults for a long time.

[0003] The essence of the large-span wind deviation problem is that under the influence of strong winds, the conductor dances, causing the phase-to-phase distance to decrease, and the insulation distance decreases, causing the line to discharge to surrounding objects or phases. Especially in windy and rainy weather, the impact is even worse. The rainwater attached to the conductor will gradually form intermittent water flow according to the change of wind direction. When the intermittent water flow formed by rainwater is in the same direction as the discharge flashover path, it will cause the discharge voltage in the air gap to drop, and eventually cause the wind deviation fault of the distribution network line. At the same time, in some areas with special terrain, the wind force in the wind outlet and wind duct often shows a more concentrated characteristic, making the micro-meteorological characteristics of the area itself prone to cause wind deviation fault problems in distribution lines. Among them, due to the mountainous terrain, the tower design is relatively high, and the altitude difference is large, so that the conductor needs to bear a higher wind speed. When the wind speed exceeds the standard that the conductor itself can bear, it will cause the tower conductor insulator to tilt, and eventually a wind deviation flashover fault will occur.

[0004] Therefore, it is necessary to carry out the research on the key technology of phase-to-phase spacer installation of large-span lines in 10kV distribution network in Henan Province and the development and application of its devices. The main research is on the structural characteristics of the hardware used to fix the end of the spacer bar, its fastening method and fastening system, so as to cooperate with the installation device to complete the installation of the spacer bar and the hardware at the specified position; the research is on the transmission method of the spacer bar and its connecting hardware from the release position to the specified installation position, the system structure of the installation device and the key technology of drive and control, and the installation device returning from the specified installation position to the release position; the research is on the technical scheme of the upper and lower poles of the spacer bar installation device and the auxiliary system of the operation and control installation device; the actual application of the phase-to-phase installation of the distribution line spacer is completed, and the effectiveness of the installation scheme before and after the installation of the phase spacer bar is evaluated; the preparation of the specification book of the installation scheme of the phase-to-phase spacer bar of the large-span line can provide support for the installation of the spacer bar of the large-span distribution line in Henan Province, reduce the gap grounding fault, phase-to-phase short circuit fault, overcurrent protection tripping and other faults caused by wind yaw discharge, improve the safe and stable operation level of the distribution network in Henan Province, and contribute to the construction of a reliable and strong power grid.

[0005] Traditional anti-drop spacers are mostly installed and tightened by power workers. Installation work cannot be carried out in rainy, snowy, windy and other weather conditions. This is not only inefficient, but also poses a safety hazard. Summary of the invention

[0006] The main purpose of the present invention is to provide a line-drop-proof spacer to solve the problem in the related art that the line-drop-proof spacer is mostly installed and fastened by electricians.

[0007] In order to achieve the above-mentioned object, according to one aspect of the present invention, there is provided an anti-dropping spacer, comprising a drone, the drone is used to transport the spacer to the conductor, and also comprises: a conductor clamping part, the conductor clamping part has two parts, which are respectively fixed on both sides of the drone, the conductor clamping part comprises two support plates, a rotating part, a supporting part and a clamping part, the support plates are all fixed on the side of the drone, the rotating part is rotatably arranged in the middle of the two support plates, and is used to adjust the position of the rotating part, and the clamping part is arranged at the end of the rotating part, and is used to clamp the conductor; A base part, wherein the base part has two parts and both are fixedly arranged on the top of the drone, and the base part includes a telescopic cylinder for changing the height of the base part; A fixing part, wherein there are two fixing parts, both of which are clamped on the top of the base part; The spacer rod portion is fixedly arranged between the two fixing portions and is used to maintain the distance between two adjacent conductive wires.

[0008] Furthermore, the drone includes a drone body and a plurality of rotors, wherein the rotors are fixedly arranged on the sides of the drone body to provide power for the drone body, and a mechanical arm is arranged below the drone body, and a screwdriver is connected to the bottom end of the mechanical arm.

[0009] Furthermore, the rotating part includes a rotating shaft and a sleeve, the supporting part includes a vertical plate, an inclined plate and a connecting plate, and the clamping part includes a fixing frame, a first clamping body, a second clamping body and a connecting shaft.

[0010] Furthermore, the rotating shaft is fixed between two supporting plates, the sleeve is rotatably arranged on the outer ring of the rotating shaft, the vertical plate is fixed on the sleeve, the connecting plate is fixedly connected to the vertical plate through an inclined plate, and the angle between the inclined plate and the vertical plate is 120°~150°.

[0011] Furthermore, the first card body is fixedly arranged on the outer side of the connecting plate, one end of the connecting shaft is slidably connected to the first card body, and the other end is fixedly connected to the second card body, the fixing frame is fixedly arranged on the outer side of the second card body, and a center column is fixedly arranged in the middle of the fixing frame, and the center column passes through the connecting shaft and extends into the first card body.

[0012] Furthermore, the base portion also includes a front supporting portion and a rear supporting portion, the front supporting portion includes a support plate, a main support plate and a transverse groove, and the rear supporting portion includes a transverse support plate, a longitudinal groove and a vertical support plate.

[0013] Furthermore, the support plate is fixed on the top of the telescopic cylinder, the main support plate is fixed on the upper surface of the support plate, the transverse support plate is fixed on the side of the main support plate, the vertical support plate is fixed on the end of the transverse support plate, the transverse groove is located in the middle above the main support plate and the transverse support plate, and the longitudinal groove is located in the middle of the transverse support plate.

[0014] Furthermore, the fixing part includes an upper fixing part, a lower fixing part and a connecting part, the connecting part includes a U-shaped frame, a fixed cross plate and a connecting shaft, the upper fixing part includes an upper fixing plate, an upper fixing groove and an electromagnet, and the lower fixing part includes a lower fixing plate, a lower fixing groove, a control rod and a screw hole.

[0015] Furthermore, the U-shaped frame is fixed to one end of the fixed horizontal plate, the lower fixed plate is fixed to the other end of the fixed horizontal plate, the lower fixed groove is arranged above the lower fixed plate, the control rod is located in the lower fixed groove and is slidably connected to the lower fixed plate, the screw hole is arranged on the inner side above the lower fixed plate, the upper fixed plate is rotatably connected to the lower fixed plate through a connecting shaft, the electromagnet is fixed to the outer side of the upper fixed plate, and the upper fixed groove is arranged on the inner side of the upper fixed plate.

[0016] Furthermore, the spacer rod portion includes two connecting groups and a spacer rod group, the connecting groups are located on both sides of the spacer rod group, the connecting groups include a fixed block and a central axis, the spacer rod group includes a spacer rod shaft, a plurality of first insulators and a plurality of second insulators, the two fixed blocks are fixed at both ends of the spacer rod shaft, the central axis is fixed in the middle of the fixed blocks, the first insulators are all fixed on the outer ring of the central axis, the second insulators are all fixed on the outer ring of the central axis and are located on both sides of the first insulator.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the spacer rod part is composed of a glass fiber epoxy resin core rod and a silicone rubber umbrella skirt, and it has the characteristics of light weight, high tensile strength, high flexibility, excellent insulation performance, etc. The spacer rod part is fixed between the two fixed parts to maintain the spacing between two adjacent wires, so that the movements of each wire are mutually restricted, thereby achieving the effect of preventing the wires from dancing; special operation drones can play an important role in power construction, improve work efficiency, reduce the workload of humans, and at the same time replace humans to perform dangerous operations in some special environments, ensure human safety, and reduce personnel costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of the spacer rod of the present invention being located at the base portion; Figure 3 This is a schematic diagram of the structure of the clamping wire portion of the present invention; Figure 4 It is a schematic diagram of the base structure of the present invention; Figure 5 This is a schematic diagram of the fixed part of the present invention in an open state; Figure 6 This is a schematic diagram of the closed state of the fixing part of the present invention; Figure 7 It is a schematic diagram of the structure of the spacer rod part of the present invention.

[0019] Illustration Description: 1. UAV; 11. UAV body; 12. Rotor; 2. Wire; 3. Clamping wire part; 30. Fixing frame; 31. Support plate; 32. Rotating shaft; 33. Sleeve; 34. Vertical plate; 35. Inclined plate; 36. Connecting plate; 37. First clamping body; 38. Second clamping body; 39. Connecting shaft; 4. Base; 41. Telescopic cylinder; 42. Support plate; 43. Main support plate; 44. Horizontal support plate; 45. Longitudinal groove; 46. Vertical support plate; 47. Horizontal groove; 5. Fixing part; 50. U-shaped frame; 51. Fixing horizontal plate; 52. Lower fixing plate; 53. Lower fixing groove; 54. Control rod; 55. Connecting shaft; 56. Screw hole; 57. Upper fixing plate; 58. Upper fixing groove; 59. Electromagnet; 6. Spacer rod portion; 61. Spacer rod shaft; 62. First insulator; 63. Second insulator; 64. Fixed block; 65. Middle axis. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] See also Figures 1 to 7 , This embodiment provides an anti-dropping spacer, including a drone 1, the drone 1 is used to transport the spacer part 6 to the conductor 2, and also includes: a clamping conductor part 3, there are two clamping conductor parts 3, which are respectively fixed on both sides of the drone 1, and the clamping conductor part 3 includes two support plates 31, a rotating part, a supporting part and a clamping part. The support plates 31 are all fixed on the side of the drone 1, and the rotating part is rotatably arranged in the middle of the two support plates 31 for adjusting the position of the rotating part. The clamping part is arranged at the end of the rotating part for clamping the conductor 2; There are two base parts 4, both of which are fixed on the top of the drone 1. The base parts 4 include a telescopic cylinder 41 for changing the height of the base parts 4; There are two fixing parts 5, both of which are clamped on the top of the base part 4; The spacer rod portion 6 is fixedly disposed between the two fixing portions 5 and is used to maintain the distance between two adjacent conductive wires 2 .

[0022] The drone 1 includes a drone body 11 and a plurality of rotors 12. In this embodiment, four rotors 12 are preferably used to help the drone body 11 maintain balance. The rotors 12 are fixed on the sides of the drone body 11 to provide power for the drone body 11. A mechanical arm is provided under the drone body 11, and a screwdriver is connected to the bottom of the mechanical arm.

[0023] The rotating part includes a rotating shaft 32 and a sleeve 33 , the supporting part includes a vertical plate 34 , an inclined plate 35 and a connecting plate 36 , and the clamping part includes a fixing frame 30 , a first clamping body 37 , a second clamping body 38 and a connecting shaft 39 .

[0024] The rotating shaft 32 is fixedly arranged between the two support plates 31, and the sleeve 33 is rotatably arranged on the outer ring of the rotating shaft 32. A motor is arranged inside the sleeve 33 for driving the sleeve 33 to rotate. By adjusting the angle of the vertical plate 34, the position relationship between the connecting shaft 39 and the wire 2 is adjusted. The vertical plate 34 is fixedly arranged on the sleeve 33, and the connecting plate 36 is fixedly connected to the vertical plate 34 through the inclined plate 35. The angle between the inclined plate 35 and the vertical plate 34 is 120°~150°, and 135° is preferably selected in this embodiment to facilitate the adjustment of the position of the connecting shaft 39.

[0025] The first card body 37 is fixedly arranged on the outer side surface of the connecting plate 36, one end of the connecting shaft 39 is slidably connected to the first card body 37, and the other end is fixedly connected to the second card body 38. The fixing frame 30 is fixedly arranged on the outer side surface of the second card body 38, and a central column is fixedly arranged in the middle of the fixing frame 30, and the central column passes through the connecting shaft 39 and extends into the first card body 37. A telescopic cylinder is arranged in the first card body 37, and the piston rod of the telescopic cylinder is connected to the central column of the fixing frame 30. In the initial state, the piston rod is extended to make the second card body 38 away from the first card body 37, so as to facilitate the accommodation of the wire 2. After the wire 2 is hung, the piston rod retracts and pushes the connecting shaft 39 into the first card body 37 through the central column to clamp the wire 2.

[0026] The base portion 4 further includes a front supporting portion and a rear supporting portion. The front supporting portion includes a support plate 42 , a main support plate 43 and a transverse groove 47 , and the rear supporting portion includes a transverse support plate 44 , a longitudinal groove 45 and a vertical support plate 46 .

[0027] The support plate 42 is fixed on the top of the telescopic cylinder 41, the main support plate 43 is fixed on the upper surface of the support plate 42, the transverse support plate 44 is fixed on the side of the main support plate 43, the vertical support plate 46 is fixed on the end of the transverse support plate 44, and an iron block is fixed inside the vertical support plate 46, and its position corresponds to the electromagnet 59. The transverse groove 47 is located in the middle above the main support plate 43 and the transverse support plate 44, and the longitudinal groove 45 is located in the middle of the transverse support plate 44.

[0028] The fixing part 5 includes an upper fixing part, a lower fixing part and a connecting part. The connecting part includes a U-shaped frame 50, a fixing cross plate 51 and a connecting shaft 55. The upper fixing part includes an upper fixing plate 57, an upper fixing groove 58 and an electromagnet 59. The lower fixing part includes a lower fixing plate 52, a lower fixing groove 53, a control rod 54 and a screw hole 56.

[0029] The U-shaped frame 50 is fixed to one end of the fixed transverse plate 51, and the lower fixed plate 52 is fixed to the other end of the fixed transverse plate 51. The lower fixed groove 53 is arranged above the lower fixed plate 52. The control rod 54 is located in the lower fixed groove 53 and is slidably connected with the lower fixed plate 52. The screw hole 56 is arranged on the inner side above the lower fixed plate 52. The upper fixed plate 57 is rotatably connected with the lower fixed plate 52 through the connecting shaft 55. The electromagnet 59 is fixed to the outer side of the upper fixed plate 57. The upper fixed groove 58 is arranged on the inner side of the upper fixed plate 57. The upper fixed plate 57 is provided with a bolt, and the bolt is threadedly connected with the upper fixed plate 57. A spring is arranged below the control rod 54. When not subjected to external force, the spring stretches and lifts the control rod 54. The circuit of the electromagnet 59 is closed to generate magnetism. When the wire 2 is located in the lower fixed groove 53, the control rod 54 is pressed downward, the spring contracts, the control rod 54 moves downward, the circuit of the electromagnet 59 is disconnected, and the magnetism disappears.

[0030] The spacer rod portion 6 includes two connection groups and a spacer rod group. The connection groups are located on both sides of the spacer rod group. The connection groups include a fixed block 64 and a central axis 65. The spacer rod group includes a spacer rod shaft 61, a plurality of first insulators 62 and a plurality of second insulators 63. The two fixed blocks 64 are fixed at both ends of the spacer rod shaft 61. The central axis 65 is fixed in the middle of the fixed block 64. The first insulators 62 are all fixed on the outer ring of the central axis 65. The second insulators 63 are all fixed on the outer ring of the central axis 65 and are located on both sides of the first insulator 62. The spacer rod shaft 61, the first insulator 62 and the second insulator 63 have the same material properties and are composed of a glass fiber epoxy resin core rod and a silicone rubber umbrella skirt. It has the characteristics of light weight, high tensile strength, high flexibility, and excellent insulation performance.

[0031] In the initial state, the control rod 54 is lifted by the spring at the bottom thereof, so that the circuit of the electromagnet 59 is closed and the electromagnet 59 generates magnetism; the two fixing parts 5 with the spacer rod parts 6 are placed on the corresponding base parts 4 respectively, so that the fixed horizontal plate 51 is located in the horizontal groove 47 and the lower fixing plate 52 is located in the longitudinal groove 45. At this time, the electromagnet 59 is directly opposite to the iron block on the inner side of the vertical support plate 46 and absorbs the iron block, fixes the upper fixing plate 57 on the inner side of the vertical support plate 46, and fixes the spacer rod part 6 between the two base parts 4 through the fixing part 5; the drone 1 is controlled to fly a circle at the location where the spacer rod part 6 needs to be installed, and the information of the laser sensor and the visual sensor are integrated to build a map, and the map information is sent back to the ground station, and then the operator confirms the installation point according to the map information on the ground, and finally the drone 1 is based on The installation point information of the ground station is controlled by the onboard computer, and the drone autonomously navigates to a suitable position, hovers below the required installation position, and makes the connecting shaft 39 located directly above the wire 2, and starts the motor in the sleeve 33. The motor drives the vertical plate 34 to rotate around the rotating shaft 32, so that the connecting shaft 39 is located above the wire 2, and the flight height of the drone 1 is reduced. The connecting shaft 39 is hung on the wire 2, and the telescopic cylinder in the first card body 37 is remotely controlled to start. The piston rod of the telescopic cylinder retracts, and the second card body 38 and the connecting shaft 39 are pulled toward the first card body 37 through the fixing frame 30, so that the connecting shaft 39 slides into the first card body 37, and the distance between the first card body 37 and the second card body 38 is reduced, and the wire is stuck in it, and the drone 1 is hung on the wire 2, so that the drone 1 and the wire 2 remain relatively still, which is convenient for installing the spacer rod part 6;Through remote operation, the two telescopic cylinders 41 are started at the same time, and the piston rods of the telescopic cylinders 41 extend out, and the fixing part 5 and the spacer part 6 are lifted to the wire 2 through the base part 4. When the wire 2 is located in the corresponding lower fixing groove 53 and the control rod 54 is pressed downward, the spring under the control rod 54 contracts, and the control rod 54 moves downward, so that the circuit of the electromagnet 59 is disconnected, the magnetism of the electromagnet 59 disappears, and the electromagnet 59 no longer attracts the iron block on the inner side of the vertical support plate 46. The upper fixing plate 57 turns to the lower fixing plate 52 under the action of the torsion spring at the connecting shaft 55, so that the upper fixing groove 58 is located above the lower fixing groove 53 to form a complete circular hole, and the wire 2 is stuck therein, and the telescopic cylinder 41 is controlled to retract its piston rod, so that the height of the base part 4 is reduced and leaves the fixing part 5 and the spacer part 6, and the drone 1 is controlled to fly above the fixing part 5, and the mechanical arm under the drone 1 is extended, and the screwdriver under the mechanical arm is used to tighten the upper fixing plate 52. The bolts on the plate 57 are screwed into the screw holes 56, and the upper fixing plate 57 is fixed on the lower fixing plate 52, and the wire 2 is tightly clamped. In the same way, the upper fixing plate 57 of the fixing part 5 at the other end of the spacer bar part 6 is fixed on the lower fixing plate 52, and another wire 2 is clamped, and the spacer bar part 6 is fixed between the two wires 2. Similarly, the spacer bar part 6 can be installed on any wire 2 that needs to be installed. After the installation is completed, the telescopic cylinder in the first card body 37 is remotely controlled, and the piston rod of the telescopic cylinder is extended to push the second card body 38 and the connecting shaft 39 away from the first card body 37, so that the connecting shaft 39 slides out of the first card body 37, and the distance between the first card body 37 and the second card body 38 is increased. The wire 2 is disengaged from between the first card body 37 and the second card body 38, and the height of the drone 1 is raised. Then the motor is operated to drive the vertical plate 34 to rotate in the opposite direction around the rotating shaft 32, so that the connecting shaft 39 leaves the wire 2, and the drone 1 performs the one-key return mission. ;

[0032] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above in the form of preferred embodiments, it is not intended to limit the present invention. Any technical personnel in the field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A line-drop prevention spacer, comprising a drone (1), characterized in that: The drone (1) is used to transport the spacer rod portion (6) to the conductor (2), and further comprises: A wire clamping part (3), wherein there are two wire clamping parts (3), which are respectively fixedly arranged on both sides of the drone (1), and the wire clamping part (3) comprises two support plates (31), a rotating part, a supporting part and a clamping part. The support plates (31) are fixedly arranged on the side of the drone (1), and the rotating part is rotatably arranged in the middle of the two support plates (31) for adjusting the position of the rotating part. The clamping part is arranged at the end of the rotating part and is used to clamp the wire (2); A base portion (4), wherein there are two base portions (4), both of which are fixedly arranged on the top of the drone (1), and the base portion (4) comprises a telescopic cylinder (41) for changing the height of the base portion (4); A fixing portion (5), wherein there are two fixing portions (5), both of which are clamped on the top of the base portion (4); A spacer rod portion (6), wherein the spacer rod portion (6) is fixedly arranged between the two fixing portions (5) and is used to maintain the distance between two adjacent conductive wires (2).

2. The anti-dropping spacer according to claim 1, characterized in that: The drone (1) comprises a drone body (11) and a plurality of rotors (12), wherein the rotors (12) are fixedly arranged on the sides of the drone body (11) to provide power for the drone body (11), and a mechanical arm is arranged below the drone body (11), and a screwdriver is connected to the bottom end of the mechanical arm.

3. The anti-dropping spacer according to claim 2, characterized in that: The rotating portion comprises a rotating shaft (32) and a sleeve (33), the supporting portion comprises a vertical plate (34), an inclined plate (35) and a connecting plate (36), and the clamping portion comprises a fixing frame (30), a first clamping body (37), a second clamping body (38) and a connecting shaft (39).

4. The anti-dropping spacer according to claim 3, characterized in that: The rotating shaft (32) is fixedly arranged between two supporting plates (31); the sleeve (33) is rotatably arranged on the outer ring of the rotating shaft (32); the vertical plate (34) is fixedly arranged on the sleeve (33); the connecting plate (36) is fixedly connected to the vertical plate (34) via an inclined plate (35); and the angle between the inclined plate (35) and the vertical plate (34) is 120° to 150°.

5. The anti-dropping spacer according to claim 3, characterized in that: The first card body (37) is fixedly arranged on the outer side surface of the connecting plate (36); one end of the connecting shaft (39) is slidably connected to the first card body (37) and the other end is fixedly connected to the second card body (38); the fixing frame (30) is fixedly arranged on the outer side surface of the second card body (38); a central column is fixedly arranged in the middle of the fixing frame (30); the central column passes through the connecting shaft (39) and extends into the first card body (37).

6. The anti-dropping spacer according to claim 2, characterized in that: The base portion (4) further comprises a front bearing portion and a rear bearing portion, the front bearing portion comprising a support plate (42), a main support plate (43) and a transverse groove (47), and the rear bearing portion comprising a transverse support plate (44), a longitudinal groove (45) and a vertical support plate (46).

7. The anti-dropping spacer according to claim 6, characterized in that: The support plate (42) is fixedly arranged on the top of the telescopic cylinder (41), the main support plate (43) is fixedly arranged on the upper surface of the support plate (42), the transverse support plate (44) is fixedly arranged on the side of the main support plate (43), the vertical support plate (46) is fixedly arranged on the end of the transverse support plate (44), the transverse groove (47) is located in the middle of the upper part of the main support plate (43) and the transverse support plate (44), and the longitudinal groove (45) is located in the middle of the transverse support plate (44).

8. The anti-dropping spacer according to claim 1, characterized in that: The fixing portion (5) comprises an upper fixing portion, a lower fixing portion and a connecting portion, the connecting portion comprising a U-shaped frame (50), a fixing transverse plate (51) and a connecting shaft (55), the upper fixing portion comprising an upper fixing plate (57), an upper fixing groove (58) and an electromagnet (59), and the lower fixing portion comprising a lower fixing plate (52), a lower fixing groove (53), a control rod (54) and a screw hole (56).

9. The anti-dropping spacer according to claim 8, characterized in that: The U-shaped frame (50) is fixedly arranged at one end of the fixed transverse plate (51), the lower fixed plate (52) is fixedly arranged at the other end of the fixed transverse plate (51), the lower fixed groove (53) is arranged above the lower fixed plate (52), the control rod (54) is located in the lower fixed groove (53) and is slidably connected to the lower fixed plate (52), the screw hole (56) is arranged on the inner side above the lower fixed plate (52), the upper fixed plate (57) is rotatably connected to the lower fixed plate (52) via a connecting shaft (55), the electromagnet (59) is fixedly arranged on the outer side of the upper fixed plate (57), and the upper fixed groove (58) is arranged on the inner side of the upper fixed plate (57).

10. The anti-dropping spacer according to claim 8, characterized in that: The spacer bar portion (6) comprises two connection groups and a spacer bar group, the connection groups are located on both sides of the spacer bar group, the connection groups comprise fixed blocks (64) and a central axis (65), the spacer bar group comprises a spacer bar axis (61), a plurality of first insulators (62) and a plurality of second insulators (63), the two fixed blocks (64) are fixedly arranged at both ends of the spacer bar axis (61), the central axis (65) is fixedly arranged in the middle of the fixed blocks (64), the first insulators (62) are fixedly arranged on the outer ring of the central axis (65), and the second insulators (63) are fixedly arranged on the outer ring of the central axis (65) and are located on both sides of the first insulator (62).

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