Remote-control electric lifting device for push rod of car pusher

Abstract

The invention is applied to the technical field of pusher push rods, and particularly discloses a pusher push rod remote control electric lifting device which comprises a mounting frame, a placement box is fixedly mounted on the side surface of one end of the mounting frame, a storage battery is fixedly mounted in the placement box, and a winch is fixedly mounted in the placement box and located on one side of a stand column. A steel cable is fixedly installed on the outer surface of the lifting lug, and one end of the steel cable is connected with a winch. According to the car pusher push rod remote control electric lifting device, when the device needs to be used, a winch is driven to rotate through rotation of a motor, a steel cable can be collected through the winch, the steel cable can be supported and guided through a supporting pulley, the steel cable can be smoothly wound into the winch, and a pushing rod is pulled through the steel cable to rotate; and the pushing rod can move downwards and retract through rotation of the winch, manual operation of workers is not needed, and the labor intensity of the workers is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of push rods for cart pushers, in particular to a remote-controlled electric lifting device for a push rod for a cart pusher. Background Art

[0002] A cart pusher is a device in a mine transportation system, which is mainly used to push a mine cart to move on a track. It can apply thrust to move a mine cart from one location to another. A cart pusher is usually installed in an underground mine cart or flatbed car yard to dispatch mine carts and flatbed cars to replace manual pushing of carts, so as to reduce the labor intensity of on-site workers and improve the safety of mine carts when moving and transporting items. The push rod of the cart pusher runs along the track. When pushing the cart, the push rod is lowered and opened. After pushing the cart, the push rod is retracted and closed. When operating the push rod, manual operation is required to release and retract the push rod. The weight of the push rod is about 40KG. The number of times the push rod of the cart pusher is lowered and retracted per shift is 30 cycles. When the operator manually lowers and retracts the push rod, the operation is very inconvenient due to the weight of the push rod. In addition, the labor intensity is high when the operator manually lowers and retracts the push rod. In the process of lowering and retracting the push rod, the operator is easily squeezed or pinched by the push rod, which is inconvenient to use. Summary of the invention

[0003] The object of the present invention is to provide a remote-controlled electric lifting device for a push rod of a pusher, so as to solve the problems in the above-mentioned background technology that the push rod is easily pinched or squeezed and has high labor intensity when being manually lowered and retracted.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a remote-controlled electric lifting device for a push rod of a cart, comprising a mounting frame, a storage box is fixedly installed on the side surface of one end of the mounting frame, and a battery is fixedly installed inside the storage box, a push rod is rotatably installed on the outer surface of the mounting frame, and a lifting ear is fixedly installed on the outer surface of one end of the push rod.

[0005] Preferably, a rotating and pulling mechanism is arranged between the pushing rod and the placement box, and the rotating and pulling mechanism comprises: a winch, the winch is fixedly installed inside the placement box, and a column is fixedly installed inside the placement box, the winch is located on one side of the column, and a supporting pulley is fixedly installed on the outer surface of one end of the column away from the placement box, a steel cable is fixedly installed on the outer surface of the lifting ear, and the steel cable passes between the supporting pulleys, and the outer surface of the supporting pulley is in contact with the outer surface of the steel cable, one end of the steel cable is connected to the winch, and a motor is fixedly installed on the side surface of the winch.

[0006] By adopting the above technical solution, the steel cable can be wound into the capstan through the rotation and contraction of the winch, so that the steel cable can move along the direction of the supporting pulley, and the supporting pulley can make the steel cable move more smoothly. The push rod can be lifted through the movement of the steel cable and the lifting ear, so that the operator does not need to manually lift and lower the push rod, reducing the risk of the operator being pinched or squeezed by the push rod.

[0007] Preferably, a worm is rotatably mounted on the side surface of the capstan, and the worm is connected to the output end of the motor, and a worm wheel is fixedly mounted on the outer surface of the rotating shaft of the capstan, and the worm wheel is meshed with the worm.

[0008] By adopting the above technical solution, through the self-locking property of the worm and the worm wheel, after the winch rotates to collect or release the steel cable, the push rod will not automatically fall due to power failure or the like, and the motor does not need to be kept powered all the time, which can save a lot of battery power.

[0009] Preferably, a battery is fixedly installed inside the storage box, and the charging end of the battery is fixed on the outer surface of the storage box, a controller is fixedly installed at one end of the storage box away from the battery, and the controller is connected to the battery, and the controller is connected to the motor.

[0010] By adopting the above technical solution, the battery can be recharged through the charging terminal, and the operation of the motor can be controlled by the controller. The controller and the battery are fixed inside the storage box and can be effectively protected, reducing the probability of damage to the controller and the battery.

[0011] Preferably, a top plate is fixedly installed at one end of the placement box close to the supporting pulley, and one end of the top plate is higher than the outer surface of the placement box, and the end of the placement box close to the supporting pulley is inclined, and a retaining ring is fixedly installed on the outer surface of the top plate, and the retaining ring is located on one side of the column.

[0012] By adopting the above technical scheme, the placement box can be tilted so that when external water falls on the top plate, it can be guided by tilting, and the retaining ring can prevent the water from entering the interior of the placement box during the flow. The top plate is higher than the outer surface of the placement box, so that water will not enter the interior of the placement box through the gap between the top plate and the placement box.

[0013] Preferably, drainage holes are provided through the outer surface of the placement box, and the drainage holes are located around the placement box.

[0014] By adopting the above technical solution, when water enters the storage box, the water can be discharged to the outside through the drainage holes around the storage box, so that the water will not accumulate inside the storage box and will not cause damage to the battery, controller and motor due to accumulation.

[0015] Preferably, a shock absorbing spring is fixedly mounted on the outer surface of one end of the column close to the push rod, and the outer surface of the shock absorbing spring fits the outer surface of the push rod. A proximity switch is fixedly mounted on the outer surface of the column, and the trigger end of the proximity switch fits the outer surface of the push rod.

[0016] By adopting the above technical solution, the shock-absorbing spring can prevent the push rod from colliding with the column when it is raised and reset, and the proximity switch can be triggered after the push rod is reset, so that the motor can stop rotating, reducing the risk of damage and breakage caused by excessive retraction of the steel cable.

[0017] Preferably, a placement box is fixedly installed on the side surface of the placement box, and the interior of the placement box is designed to be inclined, and a remote control is placed inside the placement box, the top plate above the placement box can block the remote control, and the remote control is located on the highest side of the placement box, a signal antenna is fixedly installed on the outer surface of one end of the column, and the signal antenna is connected to the controller, and the signal antenna is located at the highest point of the column.

[0018] By adopting the above technical solution, the placement box can be used to place the remote control, and the shielding of the placement box by the top plate and the inclined design of the placement box can reduce the probability of water entering the placement box and contacting the remote control, and the signal antenna is set at a high position of the column to increase the range of the remote control receiving signal.

[0019] Preferably, a handle is fixedly mounted on the outer surface of one end of the push rod close to the lifting ear, and soft LED display screens are fixedly mounted on the outer surfaces of both sides of the push rod, and the soft LED display screens are connected to the controller.

[0020] By adopting the above technical solution, the handle can be used to provide a manual lifting lever for the push rod, and the soft LED display can be used to warn and remind surrounding staff in a dark environment.

[0021] Preferably, a reinforcing block is fixedly mounted on the side surface of the mounting frame, and a plug-in limiting mechanism is provided between the mounting frame and the push rod, so that the position of the push rod is limited by the plug-in limiting mechanism.

[0022] By adopting the above technical solution, the supporting strength of the mounting frame during use can be improved by the reinforcing block, so that the holes opened on the outer surface of the mounting frame will not be deformed.

[0023] Preferably, the plug-in limit mechanism includes: a plug-in limit rod, the outer surface of the plug-in limit rod passes through the outer surface of the mounting frame, and the outer surfaces of the mounting frame and the reinforcement block are provided with through holes, a link chain is fixedly inserted between the mounting frame and the plug-in limit rod, and a limit screw is threadedly installed at one end of the plug-in limit rod away from the link chain, and the outer surface of the limit screw is in contact with the outer surface of the mounting frame.

[0024] By adopting the above technical solution, the lowest position of the push rod can be limited by the plug-in limit rod, and the connecting chain can prevent the plug-in limit rod from falling and being difficult to find when the position of the plug-in limit rod is changed. The position of the plug-in limit rod can be limited by the limit screw, so that the plug-in limit rod will not fall from the mounting frame during the use of the device.

[0025] Compared with the prior art, the invention has the following beneficial effects: the push rod remote control electric lifting device of the pusher:

[0026] 1. When it is needed, the winch can be rotated by the rotation of the motor, so that the winch can retract the steel cable. The steel cable can be supported and guided by the support pulley, so that the steel cable can be smoothly rolled into the winch, and the push rod can be pulled by the steel cable to rotate, so that the push rod can be moved down and retracted through the rotation of the winch, so that workers do not need to operate manually, reducing the labor intensity of workers;

[0027] 2. The placement box can protect the batteries, controllers and motors installed inside, reducing the risk of damage caused by falling rocks in the mine. At the same time, the inclined design of the placement box makes the roof inclined after installation. The retaining ring can guide the dripping water in the mine to flow away, so that the water will not stay on the outer surface of the roof, and reduce the probability of water entering the placement box, thereby reducing the damage to the batteries, controllers and motors caused by water immersion and impact with foreign objects;

[0028] 3. The damping spring allows the push rod to be pushed without directly colliding with the mounting frame when it rotates and approaches the column. The proximity switch contacts the push rod, so that after the push rod reaches the position and triggers the proximity switch, the motor stops rotating and the winch stops rotating, so that the steel cable will not break due to excessive rotation of the winch, and the soft LED display screens on both sides of the push rod can warn and remind people around.

[0029] 4. The outer surface of the mounting frame is reinforced by a reinforcing block, and the thickness of the mounting frame and the plug-in limit rod is increased, so that when the push rod contacts the plug-in limit rod, the hole of the mounting frame will not be deformed due to weight and other reasons. The link chain can prevent the plug-in limit rod from falling off due to slipping out of the hand when the position is changed, and it is difficult to find the plug-in limit rod. At the same time, the plug-in limit rod is screwed in by a limit screw to prevent the plug-in limit rod from falling from the mounting frame, and the falling position of the push rod is limited by the position where the plug-in limit rod is plugged into the mounting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the mounting frame and the placement box of the present invention;

[0031] Figure 2 This is a schematic diagram of the three-dimensional structure of the placement box and the top plate of the present invention;

[0032] Figure 3 It is a schematic diagram of the three-dimensional structure of the push rod and the column of the present invention;

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of the placement box and the drainage hole of the present invention;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the battery and the controller of the present invention;

[0035] Figure 6 It is a schematic diagram of the three-dimensional structure of the mounting frame and the push rod rotation of the present invention;

[0036] Figure 7 It is a schematic diagram of the exploded three-dimensional structure of the placement box and the top plate of the present invention;

[0037] Figure 8 It is a schematic diagram of the exploded three-dimensional structure of the proximity switch and the column of the present invention;

[0038] Fig. 9 It is a schematic diagram of the explosion three-dimensional structure of the reinforcement block and the plug-in limit rod of the present invention;

[0039] Fig.10 It is a schematic diagram of the three-dimensional structure of the worm and the worm wheel of the present invention.

[0040] In the figure: 1. mounting frame; 2. push rod; 3. storage box; 4. column; 5. battery; 6. controller; 7. capstan; 8. motor; 9. worm; 10. worm wheel; 11. supporting pulley; 12. steel cable; 13. lifting ear; 14. handle; 15. proximity switch; 16. shock-absorbing spring; 17. signal antenna; 18. storage box; 19. remote control; 20. drainage hole; 21. top plate; 22. retaining ring; 23. soft LED display; 24. reinforcement block; 25. plug-in limit rod; 26. link chain; 27. limit screw. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-10The present invention provides a technical solution: a remote-controlled electric lifting device for a push rod of a cart pusher, comprising a mounting frame 1, a placement box 3 is fixedly installed on the side surface of one end of the mounting frame 1, and a battery 5 is fixedly installed inside the placement box 3, a push rod 2 is rotatably installed on the outer surface of the mounting frame 1, and a lifting ear 13 is fixedly installed on the outer surface of one end of the push rod 2.

[0043] Electricity can be stored by the battery 5 and the electric lifting device can be fixed by the mounting frame 1 .

[0044] A rotating and pulling mechanism is arranged between the pushing rod 2 and the placement box 3, and the rotating and pulling mechanism comprises: a winch 7, the winch 7 is fixedly installed inside the placement box 3, and a column 4 is fixedly installed inside the placement box 3, the winch 7 is located on one side of the column 4, and a supporting pulley 11 is fixedly installed on the outer surface of one end of the column 4 away from the placement box 3, a steel cable 12 is fixedly installed on the outer surface of the lifting ear 13, and the steel cable 12 passes between the supporting pulleys 11, and the outer surface of the supporting pulley 11 is in contact with the outer surface of the steel cable 12, one end of the steel cable 12 is connected to the winch 7, and a motor 8 is fixedly installed on the side surface of the winch 7.

[0045] When it is necessary to use the electric lifting device, it is only necessary to drive the winch 7 to rotate through the motor 8, so that the steel cable 12 can be wound into the winch 7, and the steel cable 12 can have a leverage point through the column 4, and the steel cable 12 can be guided through the support pulley 11, and the friction of the steel cable 12 when moving can be reduced, so that the steel cable 12 can move smoothly, and the push rod 2 is driven to rotate on the mounting frame 1 through the fixation of the steel cable 12 and the lifting ear 13, so that the push rod 2 can be lowered and retracted without manual operation by workers, thereby reducing the pinching and squeezing injuries caused by the lowering and retracting of the push rod 2, and reducing the labor intensity of workers without manual operation.

[0046] A worm 9 is rotatably mounted on the side surface of the capstan 7 , and the worm 9 is connected to the output end of the motor 8 . A worm wheel 10 is fixedly mounted on the outer surface of the rotating shaft of the capstan 7 , and the worm wheel 10 is meshed with the worm 9 .

[0047] The rotation of the motor 8 can drive the worm 9 to rotate, so that the worm wheel 10 meshing with the worm 9 can rotate together, and the worm wheel 10 can rotate together with the capstan 7. Through the self-locking property of the worm 9 and the worm wheel 10, the motor 8 does not need to be powered on all the time, which can reduce the power consumption of the battery 5 and prevent the danger caused by the push rod 2 falling after power failure.

[0048] A battery 5 is fixedly installed inside the storage box 3, and the charging end of the battery 5 is fixed on the outer surface of the storage box 3. A controller 6 is fixedly installed at one end of the storage box 3 away from the battery 5, and the controller 6 is connected to the battery 5, and the controller 6 is connected to the motor 8.

[0049] The controller 6 can be powered by the battery 5, and the electric lifting device can be controlled by the controller 6, while the placement box 3 can protect the battery 5, the controller 6 and the motor 8, thereby reducing the damage caused by falling rocks in the mine.

[0050] A top plate 21 is fixedly installed on one end of the placement box 3 close to the supporting pulley 11, and one end of the top plate 21 is higher than the outer surface of the placement box 3, and the end of the placement box 3 close to the supporting pulley 11 is inclined, and a retaining ring 22 is fixedly installed on the outer surface of the top plate 21, and the retaining ring 22 is located on one side of the column 4.

[0051] Through the inclined design of the placement box 3, the top plate 21 can form an inclined surface after being installed on the outer surface of the placement box 3, so that when water falls from the outside, it can flow out along the inclined surface of the top plate 21, and the flowing water can be blocked by the retaining ring 22, reducing the probability of water flowing into the placement box 3.

[0052] The outer surface of the placement box 3 is penetrated with drainage holes 20 , and the drainage holes 20 are located around the placement box 3 .

[0053] When water enters the storage box 3, the water can be discharged from the storage box 3 through the drainage holes 20 around the storage box 3, so that the water will not accumulate inside the storage box 3, and the battery 5, the controller 6 and the motor 8 will not be soaked in water and damaged.

[0054] A shock-absorbing spring 16 is fixedly installed on the outer surface of one end of the column 4 close to the push rod 2, and the outer surface of the shock-absorbing spring 16 is in contact with the outer surface of the push rod 2. A proximity switch 15 is fixedly installed on the outer surface of the column 4, and the trigger end of the proximity switch 15 is in contact with the outer surface of the push rod 2.

[0055] The shock-absorbing spring 16 can provide a buffering force when the push rod 2 approaches the column 4, so that the push rod 2 will not collide with the mounting frame 1, and the contact between the proximity switch 15 and the push rod 2 can stop the winch 7 from rotating after the push rod 2 reaches the position, so that the steel cable 12 will not be over-tightened and break, causing danger.

[0056] A placement box 18 is fixedly installed on the side surface of the placement box 3, and the interior of the placement box 18 is designed to be inclined, and a remote control 19 is placed inside the placement box 18. The top plate 21 above the placement box 18 can block the remote control 19, and the remote control 19 is located on the highest side of the placement box 3. A signal antenna 17 is fixedly installed on the outer surface of one end of the column 4, and the signal antenna 17 is connected to the controller 6, and the signal antenna 17 is located at the highest point of the column 4.

[0057] The inclined design of the interior of the placement box 18 prevents water from staying inside the placement box 18, reducing the probability of the remote control 19 being soaked in water. The top plate 21 shields the placement box 18, reducing the probability of water entering the placement box 18. The remote control 19 can remotely control the motor 8, allowing the push rod 2 to be remotely lowered and retracted, and the signal antenna 17 is set to increase the control distance of the remote control 19.

[0058] A handle 14 is fixedly mounted on the outer surface of one end of the push rod 2 close to the lifting ear 13 , and soft LED display screens 23 are fixedly mounted on the outer surfaces of both sides of the push rod 2 , and the soft LED display screens 23 are connected to the controller 6 .

[0059] The handle 14 can provide a gripping point for the push rod 2, so that the push rod 2 can be manually moved during subsequent maintenance, and the soft LED display screen 23 can be used to remind and warn workers around the device in a dark light environment.

[0060] A reinforcing block 24 is fixedly mounted on the side surface of the mounting frame 1 , and a plug-in limiting mechanism is provided between the mounting frame 1 and the push rod 2 , and the position of the push rod 2 is limited by the plug-in limiting mechanism.

[0061] The reinforcing block 24 can increase the thickness of the joint between the mounting frame 1 and the plug-in limiting rod 25, improve the strength of the joint between the mounting frame 1 and the plug-in limiting rod 25, and reduce the probability of deformation of the joint between the mounting frame 1 and the plug-in limiting rod 25.

[0062] The plug-in limit mechanism includes: a plug-in limit rod 25, the outer surface of the plug-in limit rod 25 passes through the outer surface of the mounting frame 1, and the outer surfaces of the mounting frame 1 and the reinforcement block 24 are provided with through holes, a link chain 26 is fixedly inserted between the mounting frame 1 and the plug-in limit rod 25, and a limit screw 27 is threadedly installed at one end of the plug-in limit rod 25 away from the link chain 26, and the outer surface of the limit screw 27 is in contact with the outer surface of the mounting frame 1.

[0063] By plugging the mounting frame 1 with the plug-in limit rod 25, the lowering position of the push rod 2 can be limited so that the push rod 2 can be used in a suitable position. By screwing the limit screw 27 into the plug-in limit rod 25, the plug-in limit rod 25 can be limited inside the mounting frame 1 so that the plug-in limit rod 25 will not fall out of the mounting frame 1. At the same time, the link chain 26 can connect the plug-in limit rod 25 to the mounting frame 1, so that when the plug-in limit rod 25 changes its position and is pulled out of the mounting frame 1, it will not fall to the ground due to hand slippage, etc., which makes it convenient to take the plug-in limit rod 25 and prevents the plug-in limit rod 25 from being lost.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A remote-controlled electric lifting device for a push rod of a pusher, comprising a mounting frame (1), a storage box (3) is fixedly mounted on one end side surface of the mounting frame (1), and a storage battery (5) is fixedly mounted inside the storage box (3), a push rod (2) is rotatably mounted on the outer surface of the mounting frame (1), and a lifting ear (13) is fixedly mounted on the outer surface of one end of the push rod (2), characterized in that: A rotating and pulling mechanism is provided between the push rod (2) and the placement box (3), and the rotating and pulling mechanism comprises: a winch (7), the winch (7) is fixedly installed inside the placement box (3), and a column (4) is fixedly installed inside the placement box (3), the winch (7) is located on one side of the column (4), and a supporting pulley (11) is fixedly installed on the outer surface of one end of the column (4) away from the placement box (3), the outer surface of the lifting ear (13) is fixedly installed with a steel cable (12), and the steel cable (12) passes between the supporting pulleys (11), and the outer surface of the supporting pulley (11) is in contact with the outer surface of the steel cable (12), one end of the steel cable (12) is connected to the winch (7), and a motor (8) is fixedly installed on the side surface of the winch (7).

2. A remote-controlled electric lifting device for a push rod of a pusher according to claim 1, characterized in that: A worm (9) is rotatably mounted on the side surface of the capstan (7), and the worm (9) is connected to the output end of the motor (8). A worm wheel (10) is fixedly mounted on the outer surface of the rotating shaft of the capstan (7), and the worm wheel (10) is meshed with the worm (9).

3. The remote-controlled electric lifting device for a push rod of a pusher according to claim 1, characterized in that: A storage battery (5) is fixedly installed inside the storage box (3), and a charging end of the storage battery (5) is fixed on the outer surface of the storage box (3). A controller (6) is fixedly installed at one end of the storage box (3) away from the storage battery (5), and the controller (6) is connected to the storage battery (5), and the controller (6) is connected to the motor (8).

4. The remote-controlled electric lifting device for a push rod of a pusher according to claim 1, characterized in that: A top plate (21) is fixedly mounted on one end of the placement box (3) close to the supporting pulley (11), and one end of the top plate (21) is higher than the outer surface of the placement box (3), and the end of the placement box (3) close to the supporting pulley (11) is designed to be inclined, and a retaining ring (22) is fixedly mounted on the outer surface of the top plate (21), and the retaining ring (22) is located on one side of the column (4).

5. The remote-controlled electric lifting device for a push rod of a pusher according to claim 1, characterized in that: The outer surface of the placement box (3) is penetrated by drainage holes (20), and the drainage holes (20) are located around the placement box (3).

6. The remote-controlled electric lifting device for a push rod of a pusher according to claim 1, characterized in that: A damping spring (16) is fixedly mounted on the outer surface of one end of the column (4) close to the push rod (2), and the outer surface of the damping spring (16) fits the outer surface of the push rod (2). A proximity switch (15) is fixedly mounted on the outer surface of the column (4), and the trigger end of the proximity switch (15) fits the outer surface of the push rod (2).

7. The remote-controlled electric lifting device for a push rod of a pusher according to claim 1, characterized in that: A placement box (18) is fixedly mounted on the side surface of the placement box (3), and the interior of the placement box (18) is designed to be inclined, and a remote control (19) is placed inside the placement box (18), and a top plate (21) above the placement box (18) can shield the remote control (19), and the remote control (19) is located on the highest side of the placement box (3), and a signal antenna (17) is fixedly mounted on the outer surface of one end of the column (4), and the signal antenna (17) is connected to the controller (6), and the signal antenna (17) is located at the highest point of the column (4).

8. The remote-controlled electric lifting device for a push rod of a pusher according to claim 1, characterized in that: A handle (14) is fixedly mounted on the outer surface of one end of the push rod (2) close to the lifting ear (13), and soft LED display screens (23) are fixedly mounted on the outer surfaces of both sides of the push rod (2), and the soft LED display screens (23) are connected to the controller (6).

9. The remote-controlled electric lifting device for a push rod of a pusher according to claim 1, characterized in that: A reinforcing block (24) is fixedly mounted on the side surface of the mounting frame (1), and a plug-in limiting mechanism is provided between the mounting frame (1) and the push rod (2), and the position of the push rod (2) is limited by the plug-in limiting mechanism.

10. A remote-controlled electric lifting device for a push rod of a pusher according to claim 9, characterized in that: The plug-in limit mechanism comprises: a plug-in limit rod (25), the outer surface of the plug-in limit rod (25) passes through the outer surface of the mounting frame (1), and the outer surfaces of the mounting frame (1) and the reinforcing block (24) are provided with through holes, a link chain (26) is fixedly inserted between the mounting frame (1) and the plug-in limit rod (25), and a limit screw (27) is threadedly installed at one end of the plug-in limit rod (25) away from the link chain (26), and the outer surface of the limit screw (27) is in contact with the outer surface of the mounting frame (1).

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