An automatic over-the-wire deployment sled

Abstract

The application discloses an automatic overline pay-off trolley and relates to the technical field of cable overhead installation. The automatic overline pay-off trolley comprises a frame body arranged on a pay-off trolley body, a plurality of pulleys rotatably connected to the frame body, two groups of protection mechanisms arranged on the two sides of the pulleys and fixed to the side walls of the frame body, and can protect the pulleys when a walking plate is pulled by a traction rope and a cable passes through the pulleys. Each group of the protection mechanisms comprises a mounting frame fixed to the side wall of the frame body through a connecting frame. The automatic overline pay-off trolley can avoid the impact of the walking plate on the pulleys, and can make the walking plate pass above the pulleys without contacting the pulleys, so that the pulleys are protected, the service effect and the service life are ensured, and after the cable is conveyed on the pulleys, the cable on the pulleys is limited, so that the cable is prevented from deviating or even separating from the pulleys, and the service effect is ensured.

Description

Technical Field

[0001] This invention relates to the field of overhead cable installation technology, specifically to an automatic cable-laying trolley. Background Technology

[0002] The general process for tension-driven cable laying involves manually laying lightweight guide ropes in sections along the line, connecting them via a cable-laying pulley, and then using a traction rope with sufficient strength to pull the conductor. Existing conventional cable-laying pulleys mainly consist of a frame and pulleys mounted on the frame. Personnel must thread the guide rope through the pulley at its suspension point. In some situations, such as mountainous regions where ground-based deployment of the guide rope is not feasible, automatic cable-laying pulleys, also known as eccentric pulleys, have been developed. These pulleys use an eccentric wheel and a lever assembly to automatically position and steer the guide rope. The eccentric wheel has shallow and deep grooves on its radial outer surface. When the lever's lever engages in the shallow groove, the guide rope can be automatically guided from the outside of the pulley to the inside during drone-driven cable laying, eliminating the need for manual intervention.

[0003] However, in the existing automatic cable-laying pulleys, after the traction rope enters the inner side of the pulley, a traction device is needed to pull the traction rope to move the cable onto the pulley's pulley. However, when using the traction rope to pull the cable, the guide plate between the traction rope and the cable will collide with the pulley and slide on the surface of the pulley, which can easily damage the pulley, affecting its performance and lifespan. Furthermore, when the cable is transported on the pulley, there is no limit switch, and due to strong winds and shaking, it is easy to deviate or even detach, which is not stable and reliable, and will also affect its performance. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic line-crossing and line-releasing trolley to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic line-crossing and line-releasing trolley, comprising a frame mounted on the trolley body and a plurality of pulleys rotatably connected to the frame, and further comprising: Two sets of protective mechanisms are installed on both sides of the pulley and fixed to the side wall of the frame, which can protect the pulley when the traction rope pulls the walkway and the cable through the pulley; Each set of protective mechanisms includes: The mounting bracket is fixed to the side wall of the frame via a connecting bracket; A lifting mechanism is provided on the side wall of the mounting frame, and a lifting block is connected to the lifting mechanism. The lifting mechanism is used to lift the lifting block. The L-shaped plate rotates on the side wall of the lifting block via the first rotating tube; The rotating roller rotates on the side wall of the L-shaped plate through the second rotating tube, and the side wall of the rotating roller is provided with multiple annular grooves so that the annular grooves can guide and limit the traction rope and cable. A drive mechanism, located on the side wall of the mounting bracket, is used to drive the first rotating tube to rotate.

[0006] Preferably, the lifting mechanism includes: Two T-shaped guide rods are fixed to the top of the lifting block; The first connecting block is sleeved on the side wall of the two T-shaped guide rods and fixed to the side wall of the mounting bracket; Two first elastic elements are sleeved on the sidewall of each of the T-shaped guide rods, and the two first elastic elements are located on both sides of the first connecting block; A strip-shaped opening is formed on the side wall of the mounting bracket, allowing the first rotating tube to slide within the strip-shaped opening.

[0007] Preferably, the drive mechanism includes: A moving mechanism is disposed on the side wall of the mounting frame, and a rack is connected to the moving mechanism, which is used to move the rack; The gear is sleeved on the side wall of the first rotating tube and meshes with the rack.

[0008] Preferably, the moving mechanism includes: The movable block is fixed to the side wall of the lifting block by a connecting plate and connected to the side wall of the mounting frame by a guide mechanism; The mounting block is fixed to the top of the rack and connected to the side wall of the movable block via a movable component; A limiting mechanism is provided at the bottom of the moving block to limit the movement of the rack; The moving component includes: The first set of rods is fixed to the side wall of the mounting block; The first sleeve is fitted onto the side wall of the first sleeve rod and fixed to the side wall of the moving block; A reset mechanism is disposed between the mounting block and the moving block, and is used to guide and reset the movement of the mounting block; The first pushing mechanism is located on the side wall of the mounting frame and is used to push the first sleeve rod to move.

[0009] Preferably, the guiding mechanism includes: The guide rail is fixed to the side wall of the mounting bracket; A guide groove is formed on the side wall of the moving block, allowing the guide rail to slide within the guide groove.

[0010] Preferably, the limiting mechanism includes: The limiting block is fixed to the bottom of the moving block by the second connecting block, so that the mounting block can abut against the limiting block.

[0011] Preferably, the reset mechanism includes: The second sleeve is fixed to the side wall of the mounting block; The second rod is inserted into the second sleeve and fixed to the side wall of the moving block; Two second elastic elements are sleeved on the side wall of the second sleeve, and the second elastic elements are located between the moving block and the mounting block.

[0012] Preferably, the first actuating mechanism includes: The high-pressure gas cylinder is fixed to the side wall of the mounting bracket by a fixing block; An inflation valve is connected to the top of the high-pressure gas tank; An air extraction valve is connected to the top of the high-pressure gas tank; The gas supply pipe is connected to the bottom of the high-pressure gas tank, and the end away from the high-pressure gas tank is connected to the first sleeve through a hose; Two on / off mechanisms are installed on the side wall of the gas supply pipe to control the opening and closing of the gas supply pipe.

[0013] Preferably, each set of the switching mechanisms includes: A fixing cover is fixedly inserted into the side wall of the air supply pipe and communicates with the air supply pipe; The sealing plate is inserted into the fixed cover and pushed by the second pushing mechanism; A circular hole is formed at the top of the sealing plate so that the circular hole can coincide with the cross-section of the air supply pipe.

[0014] Preferably, the second actuating mechanism includes: A fixed tube is fixedly inserted into the second rotating tube and located inside the rotating roller, and the fixed tube is filled with hydraulic oil. Multiple connecting pipes are connected to the fixed pipe; The contact is inserted into the sidewall of each of the annular grooves and extends into the connecting pipe; An L-shaped tube is rotatably connected to the end of the fixed tube, with the end furthest from the fixed tube connected to the first rotating tube. A push rod is inserted at the end of the first rotating tube away from the L-shaped tube; A fixing plate is fixed to the side wall of the sealing plate, so that the end of the push rod away from the first rotating tube can abut against the side wall of the sealing plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This type of automatic cable-crossing and releasing trolley, through the setting of lifting and driving mechanisms, can avoid the impact of the guide plate on the pulley. At the same time, it can make the guide plate pass over the pulley without contacting it, thus protecting the pulley and ensuring its performance and lifespan. Furthermore, after the cable is conveyed on the pulley, it can limit the cable on the pulley to prevent it from deviating or even detaching, making it more stable and reliable and ensuring its performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention; Figure 3 This is a partial cross-sectional view of the present invention; Figure 4 for Figure 2 Enlarged structural diagram at point A; Figure 5 for Figure 2 Enlarged structural diagram at point B; Figure 6 for Figure 3 Enlarged structural diagram at point C; Figure 7 for Figure 3 Enlarged structural diagram at point D; Figure 8 for Figure 7 A magnified structural diagram at point E in the middle.

[0017] In the diagram: 101, frame; 102, pulley; 103, eccentric revolving door assembly; 201, first connecting block; 202, T-shaped guide rod; 203, first elastic element; 204, strip opening; 301, gear; 302, rack; 401, moving block; 402, first sleeve; 403, first sleeve rod; 404, connecting plate; 405, mounting block; 501, second sleeve; 502, second sleeve rod; 503, second elastic element; 601, guide rail; 602, guide groove; 701, second connecting block; 702, limiting block; 8 01. Fixing block; 802. High-pressure gas tank; 803. Inflation valve; 804. Suction valve; 805. Gas supply pipe; 806. Hose; 901. Fixing cover; 902. Sealing plate; 903. Round hole; 1001. Fixing pipe; 1002. Connecting pipe; 1003. Contact; 1004. L-shaped pipe; 1005. Push rod; 1006. Fixing plate; 11. Mounting bracket; 12. Connecting bracket; 13. Lifting block; 14. First rotating pipe; 15. L-shaped plate; 16. Second rotating pipe; 17. Rotating roller; 18. Annular groove. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-8 This invention provides an automatic line-crossing and line-releasing trolley, including a frame 101 mounted on the trolley body and a plurality of pulleys (102) rotatably connected to the frame (101). The line-releasing trolley body is a known technology in this field, and its structure and principle will not be described in detail here. It also includes: Two sets of protective mechanisms are installed on both sides of the pulley 102 and fixed to the side wall of the frame 101, which can protect the pulley 102 when the traction rope pulls the walkway and the cable through the pulley 102.

[0020] Each protective unit includes: Mounting bracket 11 is fixed to the side wall of frame 101 via connecting bracket 12.

[0021] A lifting mechanism is provided on the side wall of the mounting frame 11, and a lifting block 13 is connected to the lifting mechanism. The lifting mechanism is used to lift the lifting block 13.

[0022] The L-shaped plate 15 rotates on the side wall of the lifting block 13 via the first rotating tube 14.

[0023] The rotating roller 17 rotates on the side wall of the L-shaped plate 15 through the second rotating tube 16, and the side wall of the rotating roller 17 is provided with multiple annular grooves 18, so that the annular grooves (18) can guide and limit the traction rope and cable.

[0024] The drive mechanism, located on the side wall of the mounting bracket 11, is used to drive the first rotating tube (14) to rotate. It can prevent the walk plate from impacting the pulley 102. At the same time, it can allow the walk plate to pass over the pulley 102 without contacting it, thus protecting the pulley 102 and ensuring its performance and lifespan. Furthermore, after the cable is transported on the pulley 102, it can limit the cable on the pulley 102, preventing it from deviating or even falling off, making it more stable and reliable, and ensuring its performance.

[0025] Please see Figures 4-6 The lifting mechanism includes: Two T-shaped guide rods 202 are fixed to the top of the lifting block 13.

[0026] The first connecting block 201 is sleeved on the side wall of the two T-shaped guide rods 202 and fixed to the side wall of the mounting bracket 11.

[0027] Two first elastic elements 203 are sleeved on the side wall of each T-shaped guide rod 202, and the two first elastic elements 203 are located on both sides of the first connecting block 201. The first elastic elements 203 can be springs.

[0028] The strip-shaped opening 204 is formed on the side wall of the mounting bracket 11, allowing the first rotating tube 14 to slide within the strip-shaped opening 204, which guides and resets the lifting block 13.

[0029] Please see Figure 7 and Figure 8 The drive mechanism includes: A moving mechanism is provided on the side wall of the mounting bracket 11, and a rack 302 is connected to the moving mechanism. The moving mechanism is used to move the rack 302.

[0030] Gear 301 is sleeved on the side wall of the first rotating tube 14 and meshes with rack 302. When the conveyor plate passes the two rotating rollers 17, the cable can fall into the annular groove 18. At this time, when the cable is being conveyed, it can drive the rotating rollers 17 to rotate. At the same time, the moving mechanism drives the rack 302 to move. When the rack 302 moves, it can drive gear 301 to rotate. When gear 301 rotates, it can drive the rotating rollers 17 to rotate 180 degrees from bottom to top through the first rotating tube 14 and L-shaped plate 15. When the rotating rollers 17 gradually separate from the cable, the cable can gradually move downward and fall onto pulley 102. After the rotating rollers 17 rotate 180 degrees, the cable can be placed in the annular groove 18. At this time, it can limit the cable on pulley 102, prevent it from deviating or even falling off, making it more stable and reliable, and ensuring its performance.

[0031] Please see Figure 7 and Figure 8 Mobile institutions include: The movable block 401 is fixed to the side wall of the lifting block 13 by the connecting plate 404 and connected to the side wall of the mounting frame 11 by the guide mechanism.

[0032] Mounting block 405 is fixed to the top of rack 302 and connected to the side wall of movable block 401 via movable component.

[0033] A limiting mechanism is located at the bottom of the moving block 401 to limit the movement of the rack 302.

[0034] The mobile components include: The first rod 403 is fixed to the side wall of the mounting block 405.

[0035] The first sleeve 402 is sleeved on the side wall of the first sleeve rod 403 and fixed to the side wall of the moving block 401.

[0036] A reset mechanism is provided between the mounting block 405 and the moving block 401, and is used to guide and reset the movement of the mounting block 405.

[0037] The first pushing mechanism is located on the side wall of the mounting bracket 11 and is used to push the first sleeve rod 403 to move. The first pushing mechanism pushes the first sleeve rod 403 to move away from the first sleeve tube 402. At the same time, the mounting block 405 drives the rack 302 to move.

[0038] Please see Figure 7 and Figure 8 The guidance mechanism includes: The guide rail 601 is fixed to the side wall of the mounting bracket 11.

[0039] The guide groove 602 is formed on the side wall of the movable block 401, so that the guide rail 601 can slide in the guide groove 602, which plays a guiding and limiting role in the movement of the movable block 401.

[0040] Please see Figure 8 The limiting mechanism includes: The limiting block 702 is fixed to the bottom of the moving block 401 by the second connecting block 701, so that the mounting block 405 can abut against the limiting block 702, which limits the movement of the rack 302 and ensures that the rack 302 can only move away from the limiting block 702. That is, it ensures that when the walking plate abuts against the rotating roller 17, it will not push it to rotate upward, and ensures that the walking plate can pass over the rotating roller 17 normally.

[0041] Please see Figure 8 The reset mechanism includes: The second sleeve 501 is fixed to the side wall of the mounting block 405.

[0042] The second sleeve 502 is inserted into the second sleeve 501 and fixed to the side wall of the moving block 401.

[0043] Two second elastic elements 503 are sleeved on the side wall of the second sleeve 501, and the second elastic elements 503 are located between the moving block 401 and the mounting block 405. The second elastic elements 503 can be springs, and the two ends of the second elastic elements 503 are fixed to the moving block 401 and the mounting block 405 respectively, so as to guide and reset the movement of the mounting block 405.

[0044] Please see Figure 3 , Figures 5-8 The primary driving forces include: The high-pressure gas tank 802 is fixed to the side wall of the mounting bracket 11 by the fixing block 801.

[0045] The inflation valve 803 is connected to the top of the high-pressure gas tank 802 to facilitate the inflation of high-pressure gas.

[0046] The air extraction valve 804 is connected to the top of the high-pressure gas tank 802 to facilitate the extraction of high-pressure gas.

[0047] The gas supply pipe 805 is connected to the bottom of the high-pressure gas tank 802, and the end away from the high-pressure gas tank 802 is connected to the first sleeve 402 through the hose 806.

[0048] Two sets of on / off mechanisms are installed on the side wall of the air supply pipe 805 to control the opening and closing of the air supply pipe 805. When the conveyor plate passes the two rotating rollers 17, the cable can fall into the annular groove 18. At this time, when the cable is being transported, it can drive the rotating rollers 17 to rotate. At the same time, the two sets of on / off mechanisms are opened. At this time, the high-pressure gas in the high-pressure gas tank 802 can supply the air pipe 805 and the hose 806 into the first sleeve 402. Under the action of air pressure, the first sleeve rod 403 can be pushed to move away from the first sleeve 402. At the same time, the rack 302 is moved by the mounting block 405.

[0049] Please see Figure 5 and Figure 7 Each set of switching mechanisms includes: The fixing cover 901 is fixedly inserted into the side wall of the air supply pipe 805 and connected to the air supply pipe 805.

[0050] The sealing plate 902 is inserted into the fixed cover 901 and is pushed by the second pushing mechanism. The sealing plate 902 is made of rubber and is press-fitted with the inner wall of the fixed cover 901 to ensure the sealing effect while maintaining its state after movement.

[0051] A circular hole 903 is formed on the top of the sealing plate 902, so that the circular hole 903 can coincide with the cross section of the air supply pipe 805. The sealing plate 902 is pushed into the fixed cover 901 by the second pushing mechanism, so that the circular hole 903 coincides with the cross section of the air supply pipe 805.

[0052] Please see Figures 4-6 The second driving body includes: The fixed tube 1001 is fixedly inserted into the second rotating tube 16 and located inside the rotating roller 17. The fixed tube 1001 is filled with hydraulic oil.

[0053] Multiple connecting pipes 1002 are connected to the fixed pipe 1001.

[0054] The contact 1003 is inserted into the side wall of each annular groove 18 and extends into the connecting pipe 1002.

[0055] The L-shaped tube 1004 is rotatably connected to the end of the fixed tube 1001 and the end away from the fixed tube 1001 is connected to the first rotating tube 14. The end of the L-shaped tube 1004 away from the first rotating tube 14 is connected to the fixed tube 1001.

[0056] The push rod 1005 is inserted at the end of the first rotating tube 14 away from the L-shaped tube 1004.

[0057] The fixing plate 1006 is fixed to the side wall of the sealing plate 902, so that the end of the push rod 1005 away from the first rotating tube 14 can abut against the side wall of the sealing plate 902. When the cable is being transported, it can drive the rotating roller 17 to rotate. When the contact 1003 abuts against the cable, it can push the contact 1003 to move into the connecting tube 1002, thereby squeezing the hydraulic oil in the fixing tube 1001, so that it enters the first rotating tube 14 through the L-shaped tube 1004, and under the action of hydraulic pressure, it can push the push rod 1005 to move away from the first rotating tube 14. At the same time, after abutting against the fixing plate 1006, it pushes the sealing plate 902 to slide into the fixing cover 901.

[0058] Working principle: During overhead cable installation, the cable and traction rope are first connected via a walkway. Then, the traction rope is moved by a drone and slid above the pulley 102 via the eccentric rotating door assembly 103. Simultaneously, the traction rope is positioned within the annular groove 18 of the two rotating rollers 17 and above the pulley 102. The other end of the traction rope is then connected to the traction device, which performs the traction operation. When the walkway abuts against the rotating rollers 17, it pushes the rotating rollers 17 upward. At the same time, the lifting block 13 is moved upward via the L-shaped plate 15, causing the first elastic element 203 to deform. This provides a buffering and protective effect.

[0059] After the conveyor plate passes over one of the rotating rollers 17, it can pass over the pulley 102 and then over the other rotating roller 17, thus avoiding impact on the pulley 102 and protecting it to ensure its performance and lifespan. After the conveyor plate passes over both rotating rollers 17, the cable can fall into the annular groove 18. At this time, when the cable is being transported, it can drive the rotating rollers 17 to rotate. When the contact 1003 comes into contact with the cable, it can push the contact 1003 into the connecting pipe 1002, thereby squeezing the hydraulic oil in the fixed pipe 1001 and causing it to enter the first rotating pipe 14 through the L-shaped pipe 1004. Under the action of hydraulic pressure, it can push the push rod 1005 to move away from the first rotating pipe 14. At the same time, after coming into contact with the fixed plate 1006, it pushes the sealing plate 902 to slide into the fixed cover 901, so that the cross section of the round hole 903 coincides with that of the air supply pipe 805.

[0060] At this time, the high-pressure gas in the high-pressure gas tank 802 can supply gas pipe 805 and hose 806 into the first sleeve 402. Under the action of gas pressure, it can push the first sleeve rod 403 to move away from the first sleeve 402. At the same time, the rack 302 is driven to move through the mounting block 405. Simultaneously, the second elastic element 503 is stretched. When the rack 302 moves, it can drive the gear 301 to rotate. When the gear 301 rotates, it can drive the rotating roller 17 from the first rotating tube 14 and L-shaped plate 15. The cable is rotated 180 degrees from bottom to top. As the rotating roller 17 gradually separates from the cable, the cable can gradually move downwards and fall onto the pulley 102. After the rotating roller 17 is rotated 180 degrees, the cable is positioned within the annular groove 18. At the same time, the first elastic element 203 can deform to ensure that the cable is in contact with the side wall of the annular groove 18. This makes it suitable for cables of different diameters, providing greater adaptability. At this time, it can limit the cable on the pulley 102, preventing it from deviating or even detaching, making it more stable and reliable, and ensuring its performance.

[0061] When the entire device needs to be recycled, the high-pressure gas inside can be completely extracted through the extraction valve 804. At this time, the first rotating tube 14 can rotate and reset under the action of the second elastic element 503, thereby driving the first rotating tube 14 and the rotating roller 17 to rotate and reset. Then, the fixed plate 1006 is pulled forcefully, causing the sealing plate 902 to move away from the fixed cover 901, so that the cross section of the round hole 903 is misaligned with that of the air supply pipe 805. At this time, the air supply pipe 805 is closed. At the same time, the push rod 1005 can be pushed, thereby pushing the contact 1003 to move and reset and extend away from the connecting pipe 1002. Finally, high-pressure gas can be filled into the high-pressure gas tank 802 through the inflation valve 803.

[0062] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0063] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An automatic line-crossing and line-releasing trolley, comprising a frame (101) mounted on the trolley body and a plurality of pulleys (102) rotatably connected to the frame (101), characterized in that: Also includes: Two sets of protective mechanisms are set on both sides of the pulley (102) and fixed to the side wall of the frame (101), which can protect the pulley (102) when the traction rope pulls the walkway and the cable through the pulley (102); Each set of protective mechanisms includes: The mounting bracket (11) is fixed to the side wall of the frame (101) by the connecting bracket (12); A lifting mechanism is provided on the side wall of the mounting frame (11), and a lifting block (13) is connected to the lifting mechanism. The lifting mechanism is used to lift the lifting block (13). The L-shaped plate (15) rotates on the side wall of the lifting block (13) via the first rotating tube (14); The rotating roller (17) rotates on the side wall of the L-shaped plate (15) through the second rotating tube (16), and the side wall of the rotating roller (17) is provided with multiple annular grooves (18) so that the annular grooves (18) can guide and limit the traction rope and cable. The driving mechanism is located on the side wall of the mounting frame (11) and is used to drive the first rotating tube (14) to rotate, thereby causing the L-shaped plate (15) and the rotating roller (17) to flip. When the conveyor passes the rotating roller (17), the cable falls into the annular groove (18). When the cable is conveyed, it drives the rotating roller (17) to rotate. The drive mechanism drives the first rotating tube (14) to rotate. The L-shaped plate (15) can drive the rotating roller (17) to rotate 180 degrees from bottom to top. When the rotating roller (17) gradually separates from the cable, the cable can gradually move downward and fall on the pulley (102). After the rotating roller (17) rotates 180 degrees again, the cable can be placed in the annular groove (18) to limit the cable on the pulley (102).

2. The automatic line-crossing and line-releasing trolley according to claim 1, characterized in that: The lifting mechanism includes: Two T-shaped guide rods (202) are fixed to the top of the lifting block (13); The first connecting block (201) is sleeved on the side wall of the two T-shaped guide rods (202) and fixed to the side wall of the mounting bracket (11); Two first elastic elements (203) are sleeved on the sidewall of each of the T-shaped guide rods (202), and the two first elastic elements (203) are located on both sides of the first connecting block (201); A strip opening (204) is provided on the side wall of the mounting bracket (11) so that the first rotating tube (14) can slide within the strip opening (204).

3. The automatic line-crossing and line-releasing trolley according to claim 2, characterized in that: The drive mechanism includes: A moving mechanism is provided on the side wall of the mounting frame (11), and a rack (302) is connected to the moving mechanism. The moving mechanism is used to move the rack (302). The gear (301) is sleeved on the side wall of the first rotating tube (14) and meshes with the rack (302).

4. An automatic line-crossing and line-releasing trolley according to claim 3, characterized in that: The mobile mechanism includes: The movable block (401) is fixed to the side wall of the lifting block (13) by the connecting plate (404) and connected to the side wall of the mounting frame (11) by the guide mechanism; Mounting block (405) is fixed to the top of the rack (302) and connected to the side wall of the moving block (401) via a moving component; A limiting mechanism is provided at the bottom of the moving block (401) to limit the movement of the rack (302); The moving component includes: The first rod (403) is fixed to the side wall of the mounting block (405); The first sleeve (402) is sleeved on the side wall of the first sleeve rod (403) and fixed to the side wall of the moving block (401); A reset mechanism is provided between the mounting block (405) and the moving block (401) for guiding and resetting the movement of the mounting block (405); The first pushing mechanism is located on the side wall of the mounting bracket (11) and is used to push the first sleeve rod (403) to move.

5. An automatic line-crossing and line-releasing trolley according to claim 4, characterized in that: The guiding mechanism includes: The guide rail (601) is fixed to the side wall of the mounting bracket (11); A guide groove (602) is provided on the side wall of the movable block (401) so that the guide rail (601) can slide within the guide groove (602).

6. An automatic line-crossing and line-releasing trolley according to claim 4, characterized in that: The limiting mechanism includes: The limiting block (702) is fixed to the bottom of the moving block (401) by the second connecting block (701), so that the mounting block (405) can abut against the limiting block (702).

7. An automatic line-crossing and line-releasing trolley according to claim 4, characterized in that: The reset mechanism includes: The second sleeve (501) is fixed to the side wall of the mounting block (405); The second sleeve (502) is inserted into the second sleeve (501) and fixed to the side wall of the moving block (401); Two second elastic elements (503) are sleeved on the side wall of the second sleeve (501), and the second elastic elements (503) are located between the moving block (401) and the mounting block (405).

8. An automatic line-crossing and line-releasing trolley according to claim 4, characterized in that: The first propulsion mechanism includes: The high-pressure gas tank (802) is fixed to the side wall of the mounting bracket (11) by a fixing block (801); An inflation valve (803) is connected to the top of the high-pressure gas tank (802); An air extraction valve (804) is connected to the top of the high-pressure gas tank (802); The gas supply pipe (805) is connected to the bottom of the high-pressure gas tank (802), and the end away from the high-pressure gas tank (802) is connected to the first sleeve (402) through a hose (806); Two sets of on / off mechanisms are provided on the side wall of the air supply pipe (805) to control the opening and closing of the air supply pipe (805).

9. An automatic line-crossing and line-releasing trolley according to claim 8, characterized in that: Each set of on / off mechanisms includes: A fixing cover (901) is fixedly inserted into the side wall of the air supply pipe (805) and communicates with the air supply pipe (805); The sealing plate (902) is inserted into the fixed cover (901) and is pushed by the second pushing mechanism; A circular hole (903) is provided on the top of the sealing plate (902) so that the circular hole (903) can coincide with the cross section of the air supply pipe (805).

10. An automatic line-crossing and line-releasing trolley according to claim 9, characterized in that: The second propulsion mechanism includes: A fixed tube (1001) is fixedly inserted into the second rotating tube (16) and located inside the rotating roller (17), and the fixed tube (1001) is filled with hydraulic oil; Multiple connecting pipes (1002) are connected to the fixed pipe (1001); The contact (1003) is inserted into the side wall of each of the annular grooves (18) and extends into the connecting pipe (1002); The L-shaped tube (1004) is rotatably connected to the end of the fixed tube (1001) and the end away from the fixed tube (1001) is connected to the first rotating tube (14); A push rod (1005) is inserted into the end of the first rotating tube (14) away from the L-shaped tube (1004); The fixing plate (1006) is fixed to the side wall of the sealing plate (902) so that the end of the push rod (1005) away from the first rotating tube (14) can abut against the side wall of the sealing plate (902).

Images