Tubular slide wire
By setting the shielding assembly and driving assembly on the insulating shell of the sliding contact wire, the closing and opening of the opening and notches are automatically controlled, and the safety hazards caused by the sliding contact wire are solved due to heat and humidity, and the safety and stability are improved.
Patent Information
- Application Number
- CN202421635323.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The copper conductor in the sliding contact line emits a large amount of heat when it conducts, causing the internal humidity of the insulating shell to increase, increasing the possibility of circuit short circuits, and posing a safety hazard.
The tube-type sliding contact line design is adopted, and the opening and lower notch of the insulating shell are closed at low temperatures through the first shading assembly and the second shading assembly, and the driving assembly is used to realize automatic control to reduce the entry of cold air; when the temperature returns to normal, the rainproof cloth will automatically wind up to ensure that hot air is dissipated and the water-absorbing layer will reduce humidity.
It effectively reduces the humidity inside the insulated shell, reduces the possibility of safety accidents, ensures stable electrical connections, and avoids heat accumulation and poor contact.
Smart Images
Figure CN223181540U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of trolley wires, and in particular to a tubular trolley wire. Background Art
[0002] A trolley wire is a "special wire" that provides electrical energy for mobile devices. Through a current collector contacting the trolley wire on the conductive track, the power on the trolley wire is supplied to the electrical equipment through the current collector. The trolley wire usually includes an insulating shell and a copper conductor. The insulating shell is usually a shell with openings at both ends and a slot at the lower end. The copper conductor is arranged inside the insulating shell for transmitting current.
[0003] However, when the copper conductor in the trolley wire conducts electricity, it will emit a large amount of heat, which is absorbed by the air inside the insulating shell. Moreover, due to the narrow space inside the insulating shell, the hot air cannot be dissipated to the outside in time and most of it accumulates inside the insulating shell. When the air temperature outside the insulating shell is relatively low, most of the cold air will flow into the insulating shell through the openings and the lower slot of the insulating shell. When the hot air and the cold air come into direct contact, the hot air will liquefy into a large amount of water droplets when encountering the cold, resulting in an increase in the air humidity inside the insulating shell. Excessive humidity will reduce the insulation performance of the insulating shell and the air, increasing the possibility of a short circuit in the circuit and easily causing safety accidents, which has obvious deficiencies. Summary of the Utility Model
[0004] In order to reduce the possibility of safety accidents, this application provides a tubular trolley wire.
[0005] The tubular trolley wire provided by this application adopts the following technical solutions:
[0006] A tubular trolley wire includes an insulating shell. Openings are provided at both ends of the insulating shell, and a lower slot is opened at the lower end of the insulating shell. Boxes are provided at both ends of the insulating shell close to the openings. A first shielding component is arranged inside the boxes. A groove is opened on the side wall of the lower slot, and a second shielding component is arranged inside the groove. When the outside temperature is low, the first shielding component shields the openings, and the second shielding component shields the lower slot.
[0007] By adopting the above technical solutions, when the air temperature outside the insulating shell is relatively low, the first shielding component closes the openings at both ends of the insulating shell, and the second shielding component closes the lower slot at the lower end of the insulating shell. At this time, most of the passages for cold air to enter the insulating shell are blocked, and the amount of cold air entering the insulating shell is reduced, thereby reducing the probability of direct contact between hot air and cold air, reducing the generation of water droplets inside the insulating shell, and effectively reducing the humidity of the air inside the insulating shell, and reducing the possibility of safety accidents.
[0008] Optionally, the first shielding component includes a winding roller disposed inside the housing. A rainproof cloth is wound around the outer surface of the winding roller. One end of the rainproof cloth is connected to the winding roller, and the other end extends out of the housing and is provided with a pulling block. The pulling block is slidably connected to the side wall of the insulating housing. Driving grooves and guiding grooves are respectively formed in the side wall of the insulating housing. The driving groove and the guiding groove are disposed at two ends of the opening. A first screw rod is rotatably connected in the driving groove, and a first guiding rod is disposed in the guiding groove. One end of the pulling block is threadedly connected to the first screw rod, and the other end is slidably connected to the first guiding rod.
[0009] By adopting the above technical solution, when the air temperature outside the insulating housing is relatively low, the first screw rod rotates forward. The forward rotation of the first screw rod drives the pulling block threadedly connected to the first screw rod to move downward. During the movement of the pulling block, the rainproof cloth is pulled to unfold on the opening. When the pulling block moves to the bottom end of the first screw rod, the opening is completely shielded by the rainproof cloth. At this time, the passage for cold air to enter the interior of the insulating housing through the opening is blocked.
[0010] Optionally, coil springs are wound around both opposite ends of the winding roller. The long end surface of the coil spring is fixedly connected to the end surface of the rainproof cloth, and the short end surface of the coil spring is fixedly connected to the winding roller. In the natural state of the coil spring, the rainproof cloth is wound on the winding roller.
[0011] By adopting the above technical solution, when the temperature outside the insulating housing returns to normal, the first screw rod rotates reversely. The rotation of the first screw rod drives the pulling block to move upward. At this time, the pulling force on the coil spring becomes smaller. Under the action of the elastic force, the coil spring pulls the rainproof cloth in a relaxed state to wind on the winding roller, avoiding the situation where the rainproof cloth sags and blocks part of the opening. When the pulling block moves to the top end of the first screw rod, the opening is opened. At this time, the hot air inside the insulating housing can flow to the outside through the opening. The setting of the coil spring effectively avoids the situation where the temperature inside the insulating housing continuously rises due to heat accumulation, thereby reducing the possibility of safety accidents caused by excessive temperature.
[0012] Optionally, the second shielding component includes a shielding plate slidably connected in the groove. Second screw rods and second guiding rods are respectively disposed at two opposite ends of the groove. The second screw rod is rotatably connected inside the groove. One end of the shielding plate is threadedly connected to the second screw rod, and the other end is slidably connected to the second guiding rod.
[0013] By adopting the above technical solution, when the air temperature outside the insulating housing is relatively low, the second screw rod rotates forward. The rotation of the second screw rod drives the shielding plate to move towards the direction of the lower notch. When the end surface of the second shielding plate abuts against the side wall of the lower notch, the lower notch is closed by the second shielding plate. At this time, the passage for cold air to enter the interior of the insulating housing through the lower notch is blocked.
[0014] Optionally, a driving assembly is provided in one of the driving grooves. The driving assembly includes a driving bevel gear and a driven bevel gear rotatably connected in the driving groove. The driving bevel gear is fixedly connected to the second screw, and the driving bevel gear is fixedly connected to the first screw. The driving bevel gear and the driven bevel gear are meshed. A micro motor is provided on the outer side wall of the insulating shell, and the output shaft of the micro motor is fixedly connected to the second screw. A temperature sensor is provided on the outer side wall of the insulating shell, and the temperature sensor is electrically connected to the micro motor through a control system.
[0015] By adopting the above technical solution, when the temperature sensor detects that the external temperature drops, the temperature sensor transmits an electrical signal to the micro motor. At this time, the micro motor starts and drives the second screw to rotate. The rotation of the second screw drives the baffle to block the lower slot opening. At the same time, the second screw drives the driving bevel gear to rotate, and the driving bevel gear drives the meshed driven bevel gear to rotate. The rotation of the driven bevel gear drives the first screw to rotate, and the first screw unfolds the rainproof cloth through the pulling block. The setting of the driving assembly realizes the automatic operation of the first shielding assembly and the second shielding assembly, ensuring the synchronous closing of the lower slot opening and the two openings.
[0016] Optionally, a sealing groove is formed on the side wall of the lower slot opening, and a sealing strip is provided on the side of the baffle facing the sealing groove. The sealing strip is inserted and matched with the sealing groove.
[0017] By adopting the above technical solution, the movement of the baffle drives the sealing strip to gradually approach the sealing groove. When the sealing strip is in close fit with the sealing groove, the lower slot opening is completely blocked by the baffle. At the same time, through the interference fit between the sealing strip and the sealing groove, the sealing performance of the baffle to the lower slot opening is further improved, thereby reducing the probability of cold air entering the interior of the insulating shell and reducing the moisture content of the air inside the insulating shell.
[0018] Optionally, a plurality of buckles for fixing the copper conductor are provided on the opposite inner side walls of the insulating shell.
[0019] By adopting the above technical solution, when installing the copper conductor, the copper conductor is inserted into the interior of the buckle from one end of the buckle close to the opening. The setting of the buckle realizes the rapid installation and disassembly of the copper conductor, facilitating the maintenance and repair of the sliding contact wire. At the same time, the buckle can effectively prevent the displacement of the copper conductor in the insulating shell, ensuring the stable electrical connection of the copper conductor and avoiding problems such as poor contact or open circuit caused by displacement, thereby further reducing the possibility of safety accidents.
[0020] Optionally, a plurality of water absorption layers are provided on the inner side wall of the insulating shell. The water absorption layers are arranged between two adjacent buckles. A chute corresponding to each water absorption layer is provided on the inner side wall of the insulating shell. A sliding strip is provided on the surface of the water absorption layer close to the inner side wall of the insulating shell, and the sliding strip is slidably connected inside the chute.
[0021] By adopting the above technical solution, when the humid air inside the insulating shell comes into contact with the water absorption layer, the water absorption layer absorbs the moisture in the humid air, thereby further reducing the air humidity inside the insulating shell. With long-term use, the water absorption layer will have a poor adsorption effect due to excessive water absorption. At this time, the operator can replace the water absorption layer through the sliding cooperation of the chute and the sliding strip, effectively ensuring the water absorption effect of the water absorption layer.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. By providing the first shielding component, the second shielding component and the driving component in the present application, when the outdoor temperature is too low, the driving component drives the first shielding component to shield the openings at both ends of the insulating shell, and drives the second shielding component to shield the lower slot at the lower end of the insulating shell. At this time, most of the passages for cold air to enter the insulating shell are blocked, and the content of cold air entering the insulating shell is reduced, thereby reducing the probability of direct contact between hot air and cold air, reducing the generation of water droplets inside the insulating shell, and further effectively reducing the air humidity inside the insulating shell, and reducing the possibility of safety accidents.
[0024] 2. By providing a torsion spring in the present application, when the temperature outside the insulating shell returns to normal, the pulling force on the torsion spring becomes smaller, and the torsion spring pulls the rainproof cloth in a relaxed state to be wound on the winding roller under the action of the elastic force, avoiding the situation where the rainproof cloth sags and blocks part of the opening, and avoiding the situation where heat accumulates and causes the temperature inside the insulating shell to rise continuously, thereby reducing the possibility of safety accidents caused by too high temperature. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is a schematic structural diagram of the present application.
[0026] Figure 2 is a sectional view of the insulating shell near the opening in the embodiment of the present application.
[0027] Figure 3 is a sectional view of the groove and the sealing groove in the embodiment of the present application.
[0028] Figure 4 is Figure 2 an enlarged view of part A in
[0029] Figure 5 is Figure 2 an enlarged view of part B in
[0030] Description of the reference numerals: 1. Insulating shell; 101. Opening; 102. Lower notch; 103. Driving groove; 104. Guide groove; 105. Slide groove; 2. Snap; 21. Copper conductor; 3. Box body; 4. First shielding component; 41. Winding roller; 42. Rainproof cloth; 43. Pulling block; 44. First screw; 45. First guide rod; 5. Groove; 6. Second shielding component; 61. Second screw; 62. Second guide rod; 63. Shielding plate; 7. Driving component; 71. Driving bevel gear; 72. Driven bevel gear; 73. Micro motor; 8. Temperature sensor; 9. Torsion spring; 10. Sealing groove; 11. Sealing strip; 12. Water absorption layer; 121. Slide bar. Detailed implementation manners
[0031] The following further describes the present application in detail with reference to the Figures 1-5 accompanying drawings.
[0032] An embodiment of the present application discloses a tubular sliding contact wire.
[0033] Referring to Figure 1 , a tubular sliding contact wire includes an insulating shell 1. Openings 101 are provided at both opposite ends of the insulating shell 1. A lower notch 102 for installation is provided at the lower end of the insulating shell 1. A plurality of snaps 2 are fixedly connected to the inner side walls of the insulating shell 1. In this actual example, the number of snaps 2 is four. The four snaps 2 are divided into two groups and are respectively installed on the opposite inner side walls of the insulating shell 1. A copper conductor 21 for a conductor is installed inside each snap 2.
[0034] When installing the copper conductor 21, the copper conductor 21 is inserted into the snap 2 from the end of the snap 2 close to the opening 101. When the copper conductor 21 needs to be replaced, the copper conductor 21 is drawn out from the snap 2. The setting of the snap 2 realizes the quick installation and disassembly of the copper conductor 21, which is convenient for the maintenance and repair of the sliding contact wire. At the same time, the snap 2 can effectively prevent the displacement of the copper conductor 21 in the insulating shell 1, ensuring the stable electrical connection of the copper conductor 21 and avoiding problems such as poor contact or open circuit caused by displacement, thereby further reducing the possibility of safety accidents.
[0035] Referring to Figures 1 to 3 , box bodies 3 are fixedly installed at both ends of the insulating shell 1 close to the opening 101. A first shielding component 4 for shielding the nearby opening 101 is arranged in each box body 3. A groove 5 is provided on the side wall at one end of the lower notch 102. A second shielding component 6 for shielding the lower notch 102 is arranged inside the groove 5. A driving component 7 and a temperature sensor 8 are arranged on the insulating shell 1. The temperature sensor 8 is fixedly installed on the outer side wall of the insulating shell 1. The temperature sensor 8 is electrically connected to the electrical equipment in the driving component 7.
[0036] When the temperature sensor 8 detects a decrease in the external temperature, the temperature sensor 8 controls the driving component 7 to start. The driving component 7 drives the first shielding component 4 to shield the openings 101 at both ends of the insulating shell 1, and drives the second shielding component 6 to shield the lower notch 102 at the lower end of the insulating shell 1. At this time, most of the passages for cold air to enter the interior of the insulating shell 1 are blocked, and the content of cold air entering the interior of the insulating shell is reduced, thereby reducing the probability of direct contact between hot air and cold air, reducing the generation of water droplets inside the insulating shell, and further effectively reducing the humidity of the air inside the insulating shell, and reducing the possibility of safety accidents.
[0037] Refer to Figure 2 , the first shielding component 4 includes a winding roller 41 fixedly connected inside the box body 3. A rainproof cloth 42 is wound on the outer surface of the winding roller 41. One end of the rainproof cloth 42 is connected to the winding roller 41, and the other end extends out of the shell and is fixedly connected with a pulling block 43. The pulling block 43 is slidably connected to the side wall of the insulating shell 1 near the opening 101. Both opposite end faces of the rainproof cloth 42 are fixedly connected with a coil spring 9. One end of the coil spring 9 perpendicular to the rainproof cloth 42 is fixedly connected to the winding roller 41. In the natural state of the coil spring 9, the rainproof cloth 42 is wound on the winding roller 41.
[0038] Refer to Figure 2 , driving grooves 103 and guiding grooves 104 are respectively formed on the side walls at both ends of the insulating shell 1. The driving grooves 103 and the guiding grooves 104 are arranged at both ends of the opening 101. A first screw rod 44 is slidably connected in the driving groove 103, and a first guiding rod 45 is fixedly connected in the guiding groove 104. One end of the pulling block 43 is threadedly connected to the first screw rod 44, and the other end is slidably connected to the first guiding rod 45. Driven by the first screw rod 44, the pulling block 43 is slidably connected to the driving groove 103 and the guiding groove 104.
[0039] When the air temperature outside the insulating housing 1 is relatively low, the driving assembly 7 drives the first screw rod 44 to rotate forward. The forward rotation of the first screw rod 44 drives the pulling block 43 threadedly connected to the first screw rod 44 to move downward. During the movement of the pulling block 43, the rainproof cloth 42 is pulled to unfold on the opening 101. When the pulling block 43 moves to the bottom end of the first screw rod 44, the opening 101 is completely blocked by the rainproof cloth 42. At this time, the passage for cold air to enter the interior of the insulating housing 1 through the opening 101 is blocked. When the temperature outside the insulating housing 1 returns to normal, the first screw rod 44 rotates reversely. The rotation of the first screw rod 44 drives the pulling block 43 to move upward. At this time, the pulling force on the coil spring 9 becomes smaller. Under the action of the elastic force, the coil spring 9 pulls the rainproof cloth 42 in a relaxed state to be wound on the winding roller 41, avoiding the situation where the rainproof cloth 42 sags and blocks part of the opening 101. When the pulling block 43 moves to the top end of the first screw rod 44, the opening 101 is opened. At this time, the hot air inside the insulating housing 1 can flow to the outside through the opening 101, avoiding the situation where the temperature inside the insulating housing 1 continuously rises due to heat accumulation, and thus reducing the possibility of safety accidents caused by excessive temperature.
[0040] Refer to Figure 2 and Figure 3 As shown in FIGS. 5 and 6, the second shielding assembly 6 includes a second screw rod 61 and a second guide rod 62 oppositely arranged in the groove 5. The second screw rod 61 is rotatably connected to the inside of the groove 5, and the second guide rod 62 is fixedly connected to the inside of the groove 5. A shielding plate 63 is jointly arranged on the second guide rod 62 and the second screw rod 61. One end of the shielding plate 63 is threadedly connected to the second screw rod 61, and the other end is slidably connected to the second guide rod 62. A sealing groove 10 is formed on the side wall of the lower slot opening 102 opposite to the groove 5. A sealing strip 11 that is inserted and fitted with the sealing groove 10 is fixedly connected to the end surface of the shielding plate 63 facing the sealing groove 10.
[0041] When the air temperature outside the insulating housing 1 is relatively low, the driving assembly 7 drives the first screw rod 44 to rotate forward, and the rotation of the second screw rod 61 drives the shielding plate 63 to move towards the sealing groove 10. When the end surface of the second shielding plate 63 abuts against the side wall of the lower slot opening 102, the sealing strip 11 is inserted into and fills the sealing groove 10. At this time, the lower slot opening 102 is closed by the second shielding plate 63, and the passage for cold air to enter the interior of the insulating housing 1 through the lower slot opening 102 is blocked. When the temperature outside the insulating housing 1 returns to normal, the second screw rod 61 rotates reversely, and the rotation of the first and second screw rods drives the shielding plate 63 to move towards the groove 5. At this time, the lower slot opening 102 is opened, and the hot air can be dissipated into the outside air through the lower slot opening 102.
[0042] Refer to Figure 4, the driving component 7 is arranged in one of the driving slots 103. The driving component 7 includes a driving bevel gear 71 and a driven bevel gear 72 that are rotatably connected in the driving slot 103. The driving bevel gear 71 is fixedly connected to one end of the second screw rod 61 extending into the driving slot 103, and the driven bevel gear 72 is fixedly connected to the bottom end of the first screw rod 44. The driving bevel gear and the driven bevel gear 72 are meshed. A micro motor 73 is fixedly installed on the outer side wall of the insulating shell 1, and the output shaft of the micro motor 73 is fixedly connected to the second screw rod 61.
[0043] Referring to Figure 4 , when the temperature sensor 8 detects that the outside temperature drops, the temperature sensor 8 transmits an electrical signal to the micro motor 73. At this time, the micro motor 73 starts and drives the second screw rod 61 to rotate. The rotation of the second screw rod 61 drives the baffle 63 to block the lower slot 102. At the same time, the second screw rod 61 drives the driving bevel gear 71 to rotate. The driving bevel gear 71 drives the engaged driven bevel gear 72 to rotate. The rotation of the driven bevel gear 72 drives the first screw rod 44 to rotate. The first screw rod 44 unfolds the rainproof cloth 42 through the pulling block 43. The arrangement of the driving component 7 realizes the automatic operation of the first shielding component 4 and the second shielding component 6, ensuring the synchronous closing of the lower slot 102 and the two openings 101.
[0044] Referring to Figure 5 , a plurality of water absorption layers 12 are arranged on the inner side wall of the insulating shell 1. In the embodiment, the water absorption layer 12 is a water absorption sponge board. The number of the water absorption layers 12 is two. The two water absorption layers 12 are respectively arranged between two adjacent buckles 2. Sliding grooves 105 corresponding to the water absorption layers 12 one by one are formed on the inner side wall of the insulating shell 1. A sliding strip 121 is fixedly connected to the surface of the water absorption layer 12 close to the inner side wall of the insulating shell 1, and the sliding strip 121 is slidably connected inside the sliding groove 105.
[0045] When the humid air inside the insulating shell 1 contacts the water absorption layer 12, the water absorption layer 12 absorbs the moisture in the humid air, thereby further reducing the air humidity inside the insulating shell 1. With long-term use, the water absorption layer 12 will have a poor adsorption effect due to excessive water absorption. At this time, the operator can replace the water absorption layer 12 through the sliding cooperation of the sliding groove 105 and the sliding strip 121, effectively ensuring the water absorption effect of the water absorption layer 12.
[0046] The implementation principle of a tubular sliding contact line in an embodiment of the present application is as follows: when the temperature sensor 8 detects a decrease in the external temperature, the temperature sensor 8 controls the driving component 7 to start. The driving component 7 drives the first shielding component 4 to shield the openings 101 at both ends of the insulating shell 1, and drives the second shielding component 6 to shield the lower slot 102 at the lower end of the insulating shell 1. At this time, most of the passages for cold air to enter the inside of the insulating shell 1 are blocked, and the amount of cold air entering the inside of the insulating shell 1 is reduced, thereby reducing the probability of direct contact between hot air and cold air, reducing the generation of water droplets inside the insulating shell 1, and further effectively reducing the humidity of the air inside the insulating shell 1, and reducing the possibility of safety accidents.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A tubular trolley wire, comprising an insulating shell (1), both ends of the insulating shell (1) are provided with openings (101), and a lower notch (102) is opened at the lower end of the insulating shell (1), characterized in that, Both ends of the insulating shell (1) close to the opening (101) are provided with box bodies (3). A first shielding component (4) is arranged in the box body (3). A groove (5) is formed in the side wall of the lower slot opening (102). A second shielding component (6) is arranged in the groove (5). When the external temperature is low, the first shielding component (4) shields the opening (101), and the second shielding component (6) shields the lower slot opening (102).
2. The tubular sliding contact line according to claim 1, wherein The first shielding component (4) includes a winding roller (41) arranged in the insulating shell (1). A rainproof cloth (42) is wound on the outer surface of the winding roller (41). One end of the rainproof cloth (42) is connected to the winding roller (41), and the other end extends out of the insulating shell (1) and is provided with a pulling block (43). The pulling block (43) is slidably connected to the side wall of the insulating shell (1). Driving grooves (103) and guiding grooves (104) are respectively formed in the side wall of the insulating shell (1). The driving grooves (103) and the guiding grooves (104) are arranged at both ends of the opening (101). A first screw rod (44) is rotatably connected in the driving groove (103). A first guiding rod (45) is arranged in the guiding groove (104). One end of the pulling block (43) is threadedly connected to the first screw rod (44), and the other end is slidably connected to the first guiding rod (45).
3. The tubular sliding contact wire according to claim 2, characterized in that, Both opposite ends of the winding roller (41) are wound with coil springs (9). The long end face of the coil spring (9) is fixedly connected to the end face of the rainproof cloth (42), and the short end face of the coil spring (9) is fixedly connected to the winding roller (41). In the natural state of the coil spring (9), the rainproof cloth (42) is wound on the winding roller (41).
4. The tube type sliding contact wire according to claim 3, characterized in that, The second shielding component (6) includes a shielding plate (63) slidably connected in the groove (5). A second screw rod (61) and a second guiding rod (62) are respectively arranged at both opposite ends of the groove (5). The second screw rod (61) is rotatably connected inside the groove (5). One end of the shielding plate (63) is threadedly connected to the second screw rod (61), and the other end is slidably connected to the second guiding rod (62).
5. A tubular sliding contact line according to claim 4, characterized in that, A driving component (7) is arranged in one of the driving grooves (103). The driving component (7) includes a driving bevel gear (71) and a driven bevel gear (72) rotatably connected in the driving groove (103). The driving bevel gear (71) is fixedly connected to the second screw rod (61), and the driving bevel gear (71) is fixedly connected to the first screw rod (44). The driving bevel gear (71) and the driven bevel gear (72) are meshed. A micro motor (73) is arranged on the outer side wall of the insulating shell (1). The output shaft of the micro motor (73) is fixedly connected to the second screw rod (61). A temperature sensor (8) is arranged on the outer side wall of the insulating shell (1). The temperature sensor (8) is electrically connected to the micro motor (73) through a control system.
6. A tubular sliding contact line according to claim 4, characterized in that, A sealing groove (10) is formed on the side wall of the lower notch (102). A sealing strip (11) is arranged on one side of the shielding plate (63) facing the sealing groove (10), and the sealing strip (11) is in plug-in fit with the sealing groove (10).
7. A tubular sliding contact wire according to claim 1, characterized in that, A plurality of buckles (2) for fixing the copper conductor (21) are arranged on the opposite inner side walls of the insulating shell (1).
8. A tubular trolley wire according to claim 7, characterized in that, A plurality of water absorption layers (12) are arranged on the inner side wall of the insulating shell (1). The water absorption layers (12) are arranged between two adjacent buckles (2). A sliding groove (105) corresponding to the water absorption layer (12) one by one is formed on the inner side wall of the insulating shell (1). A sliding strip (121) is arranged on the surface of the water absorption layer (12) close to the inner side wall of the insulating shell (1), and the sliding strip (121) is slidably connected inside the sliding groove (105).