CN112279171A

CN112279171A - A prevent stall device that falls for electrical power rush-repair lift truck

Info

Publication number: CN112279171A
Application number: CN202011111132.3A
Authority: CN
Inventors: 蒋齐华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-01-29

Abstract

The invention relates to the technical field of lift truck safety, and discloses an anti-stall falling device for an electric power rush-repair lift truck. Through the inside fluid of rotating disc with the telescopic link jack-up, when the drive piece on connecting the rope drives rotating disc and rotates, the telescopic link that stretches out will withstand the inside speed reduction piece rotation of settling tank to the pin on the rotating disc will paste the outer wall of speed reduction piece and slide, will connect the speed that the rope rises and fall back with the help of frictional force between them and slow down, has reached the lift truck and has risen and fall back the effect of in-process speed reduction buffering.

Description

A prevent stall device that falls for electrical power rush-repair lift truck

Technical Field

The invention relates to the technical field of lift truck safety, in particular to a stall and fall prevention device for a power rush-repair lift truck.

Background

The lifting platform car is lifting mechanical equipment for high-altitude operation maintenance, and the product has the characteristics of stable structure, flexible movement, stable lifting, convenient operation, large load capacity and the like, and provides convenience for high-altitude operation. And in order to ensure the life safety of operating personnel, the lifting platform car inevitably needs to be provided with a stall-preventing falling device.

Although the effect of restriction lift truck motion can be accomplished to present lift truck anti-stall device that falls, but, there are lift truck rise and fall back the unable speed reduction buffering of in-process and unable automatic start anti-stall device that falls, and manual operation starts to have certain risk, so we have provided an anti-stall device that falls that is used for electrical power rush-repair lift truck to solve above problem.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the anti-stall falling device for the power rush-repair lift truck, which has the advantages that the speed reduction and buffering of the lift truck are forced in the rising and falling processes, the adverse effect of an operator due to the gravity acceleration is avoided, the anti-stall falling device is automatically started after the rising process is finished, the operation of the operator is reduced, and the problems that the speed reduction and buffering cannot be realized in the rising and falling processes of the lift truck and the anti-stall falling device cannot be automatically started are solved.

(II) technical scheme

In order to realize the forced deceleration and buffering of the lift truck in the ascending and falling processes, ensure that operators cannot generate adverse effects due to gravity acceleration, automatically start the anti-stall falling device after the ascending process is finished and reduce the operation of the operators, the invention provides the following technical scheme: an anti-stall falling device for an electric power rush-repair lift truck comprises an anti-stall falling device main body, wherein a lifting frame is fixedly arranged at the top of the anti-stall falling device main body, the outer walls on the left side and the right side of the lifting frame are connected with connecting ropes in a sliding manner, the outer wall of each connecting rope is fixedly connected with a driving block, the axis of the lifting frame is connected with a rope in a sliding manner, a driving disc is movably arranged in the anti-stall falling device main body, a driving rod is fixedly arranged on the outer wall of the driving disc, a fixed disc is fixedly arranged in the driving disc, a placing groove is formed in the inner wall of the fixed disc, a speed reducing block is movably arranged in the placing groove, a spring is fixedly connected to the inner wall of the placing groove, a rotating disc is movably arranged in the fixing disc, a telescopic rod is, the outer wall fixed mounting of rotating disc has the pin, the left side fixedly connected with oil outlet pipe of rotating disc, oil outlet pipe's inside is seted up has the valve groove, the inside sliding connection in valve groove has the valve piece, the spout has been seted up to the inner wall in resettlement groove, the inside sliding connection in spout has the slider, the inner wall fixedly connected with elasticity rope of spout, the inside sliding connection in resettlement groove has the ejector pin, the inside movable mounting of anti-stall falling device main part has the runner, the bottom fixed mounting of runner has the thing piece, the left side fixed mounting of runner has magnet, the right side fixed mounting of runner has the push rod.

Preferably, the rope is made of two materials, one is conventional steel and the other is a material for isolating magnetism.

Preferably, the deceleration block is provided with an opening and closing groove, so that the deceleration block is clamped with the stop lever.

Preferably, the rotating disc is filled with hydraulic oil, and the rotating disc is connected with the driving disc.

Preferably, the elastic rope is in a pulling and straightening state initially, so that the elastic rope is favorable for pulling the valve block away from the valve groove.

Preferably, the weight of the object block is large, and the rotating wheel can be driven to rotate.

Preferably, the magnets on the two wheels have opposite polarities to attract the two wheels to move.

(III) advantageous effects

Compared with the prior art, the invention provides a stall-preventing falling device for an electric power rush-repair lift truck, which has the following beneficial effects:

1. this a prevent stall device of falling for electrical power rush-repair lift truck, through the inside fluid of rotating disc jack-up of telescopic link, when the drive piece on connecting the rope drives rotating disc and rotates, the telescopic link that stretches out will withstand the rotation of the piece of slowing down of settling inslot portion to the pin on the rotating disc will paste the outer wall of piece of slowing down and slide, will connect the rope with the help of frictional force between them and rise and slow down with the speed that falls back, reached the lift truck rise with the effect of falling back in-process deceleration buffer.

2. This a prevent stall device of falling for electrical power rush-repair lift truck, through preventing behind the stall device of falling main part bottom magnet attraction iron plate on the rope, make the isolated magnetic part of rope be located between the runner, the attraction between isolated two magnet, thereby under the effect of thing piece, the runner deflects and leaves the ejector pin with the push rod drive, thereby under the effect of the inside elasticity rope that tightens of spout, the valve piece will be pulled away from the valve groove, thereby oil outlet pipe switches on, so the inside fluid of rotating disc will be discharged, thereby the telescopic link will retract, when connecting the rope motion, because the pin and the piece block that slows down of rotating disc block are lived, thereby connect the unable motion of rope, the effect of restriction lift truck motion has been reached.

Drawings

FIG. 1 is a schematic view of the structure of an anti-stall fall device;

FIG. 2 is a schematic view of the structure of the deceleration buffer and motion limiter;

FIG. 3 is an enlarged view of the deceleration block;

FIG. 4 is an enlarged view of the rotating disk;

fig. 5 is a schematic structural view of the oil discharge device.

In the figure: 1. a stall prevention fall device body; 2. a lifting frame; 3. connecting ropes; 4. driving the block; 5. a rope; 6. driving the disc; 7. driving the rod; 8. fixing the disc; 9. a placing groove; 10. a deceleration block; 11. a spring; 12. rotating the disc; 13. a telescopic rod; 14. a stop lever; 15. an oil outlet pipeline; 16. a valve slot; 17. a valve block; 18. a chute; 19. a slider; 20. an elastic cord; 21. a top rod; 22. a rotating wheel; 23. a material block; 24. a magnet; 25. a push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an anti-stall falling device for a power rush-repair lift truck comprises an anti-stall falling device body 1, a lifting frame 2 is fixedly installed at the top of the anti-stall falling device body 1, connecting ropes 3 are slidably connected to the outer walls of the left side and the right side of the lifting frame 2, a driving block 4 is fixedly connected to the outer wall of the connecting rope 3, a rope 5 is slidably connected to the axis of the lifting frame 2, the rope 5 is composed of two materials, one of the two materials is a conventional steel material and a material for isolating magnetism, a driving disc 6 is movably installed inside the anti-stall falling device body 1, a driving rod 7 is fixedly installed on the outer wall of the driving disc 6, a fixed disc 8 is fixedly installed inside the driving disc 6, a placement groove 9 is formed in the inner wall of the fixed disc 8, a speed reducing block 10 is movably installed inside the placement groove 9, an opening and closing groove is formed in the speed reducing block 10, and the, the inner wall of the placing groove 9 is fixedly connected with a spring 11, the inner part of the fixed disc 8 is movably provided with a rotating disc 12, the inner part of the rotating disc 12 is filled with hydraulic oil, the rotating disc 12 is connected with a driving disc 6 together, the outer wall of the rotating disc 12 is fixedly provided with an expansion link 13, the outer wall of the rotating disc 12 is fixedly provided with a stop lever 14, the left side of the rotating disc 12 is fixedly connected with an oil outlet pipeline 15, the inner part of the oil outlet pipeline 15 is provided with a valve groove 16, the inner part of the valve groove 16 is slidably connected with a valve block 17, the inner wall of the placing groove 9 is provided with a sliding groove 18, the inner part of the sliding groove 18 is slidably connected with a sliding block 19, the inner wall of the sliding groove 18 is fixedly connected with an elastic rope 20, the elastic rope 20 is in a pulling and stretching state initially, the valve block 17 is favorably pulled away from the valve groove 16 by the elastic rope, the bottom of runner 22 is fixed with thing piece 23, and the weight of thing piece 23 is big, can drive runner 22 and rotate, and the left side fixed mounting of runner 22 has magnet 24, and magnet 24 on two runners 22 has opposite polarity, can attract two runners 22 to move, and the right side fixed mounting of runner 22 has push rod 25.

The working principle is that when the lifting frame 2 drives the connecting rope 3 to move upwards, the driving disc 6 is driven to rotate after the driving block 4 on the connecting rope 3 is contacted with the driving rod 7, so that the rotating disc 12 rotates, the telescopic rod 13 is jacked up through oil in the rotating disc 12, when the driving block 4 on the connecting rope 3 drives the rotating disc 12 to rotate, the extending telescopic rod 13 can be jacked up against the speed reducing block 10 in the inner wall accommodating groove 9 of the fixed disc 8, so that the stop rod 14 on the rotating disc 12 can pass through the speed reducing block 10 and can slide through the outer wall of the speed reducing block 10, the speed of the lifting car which is driven by the connecting rope 3 to ascend and descend is reduced by means of the friction force between the stop rod 14 and the speed reducing block 10, when the lifting car moves to a working position, after the magnet 24 at the bottom of the falling prevention device main body 1 attracts the iron block on the rope 5, the magnetic isolation part of the rope 5 is positioned between the two rotating wheels 22, the attraction between the magnets 24 on the two wheels 22 is isolated so that under the force of gravity on the mass 23, the left wheel 22 will rotate clockwise, the right wheel 22 will rotate counter-clockwise, since the deflection of the wheel 22 will cause the push rod 25 to move away from the push rod 21, the force against the slide 19 in the slide groove 18 inside the seating groove 9 disappears, so that, under the action of the elastic cord 20, which is tightened inside the slide groove 18, the valve block 17 will be pulled away from the valve groove 16, the oil outlet pipe 15 is conducted, so that the oil inside the rotating disc 12 will be discharged, the telescopic rod 13 will be retracted, the stop lever 14 on the rotating disc 12 will be engaged with the groove of the speed reducing block 10, the movement of the rotating disc 12 will thus be limited, so that the movement of the entraining disc 6 is also limited, therefore, the lifting vehicle can be prevented from stalling and falling at a high place by means of limiting the movement of the connecting rope 3 by the driving rod 7 and the driving block 4.

To sum up, this a prevent stall device that falls for electrical power rush-repair lift truck, through the inside fluid of rotating disc 12 with telescopic link 13 jack-up, when driving piece 4 on connecting rope 3 drives rotating disc 12 and rotates, the telescopic link 13 that stretches out will withstand the inside deceleration piece 10 of settling tank 9 and rotate, thereby the pin 14 on the rotating disc 12 will paste the outer wall of deceleration piece 10 and slide, will connect the speed that rope 3 rises and fall back with the help of frictional force between them and slow down, reached the lift truck and risen and fall back the effect of in-process deceleration buffer.

And, this an anti-stall device that falls for electrical power rush-repair lift truck, after attracting the iron plate on the rope 5 through anti-stall device main part 1 bottom magnet 24 that falls, make the isolated magnetic part of rope 5 be located between runner 22, the attraction between isolated two magnet 24, thereby under the effect of thing piece 23, runner 22 deflects and drives push rod 25 and leaves ejector pin 21, thereby under the effect of the inside elasticity rope 20 that tightens of spout 18, valve block 17 will be pulled away from valve slot 16, thereby oil outlet pipe 15 switches on, the inside fluid of rotating disc 12 will be discharged, thereby telescopic link 13 will retract, when connecting rope 3 motion, because the pin 14 of rotating disc 12 blocks with the piece 10 that slows down, thereby connect rope 3 and can't move, the effect of restriction lift truck motion has been reached.

Having shown and described embodiments of the present invention, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent stall device of falling for electrical power rush-repair lift truck, includes prevents stall device of falling main part (1), its characterized in that: the anti-stall falling device is characterized in that a lifting frame (2) is fixedly mounted at the top of the anti-stall falling device main body (1), connecting ropes (3) are slidably connected to the outer walls of the left side and the right side of the lifting frame (2), driving blocks (4) are fixedly connected to the outer walls of the connecting ropes (3), ropes (5) are slidably connected to the axis center of the lifting frame (2), a driving disc (6) is movably mounted inside the anti-stall falling device main body (1), a driving rod (7) is fixedly mounted on the outer wall of the driving disc (6), a fixed disc (8) is fixedly mounted inside the driving disc (6), a placement groove (9) is formed in the inner wall of the fixed disc (8), a speed reducing block (10) is movably mounted inside the placement groove (9), a spring (11) is fixedly connected to the inner wall of the placement groove (9), a rotating disc (12) is movably mounted inside the fixed disc, the anti-stall falling device is characterized in that an expansion link (13) is fixedly mounted on the outer wall of the rotating disc (12), a stop lever (14) is fixedly mounted on the outer wall of the rotating disc (12), an oil outlet pipeline (15) is fixedly connected to the left side of the rotating disc (12), a valve groove (16) is formed in the oil outlet pipeline (15), a valve block (17) is slidably connected to the inside of the valve groove (16), a sliding groove (18) is formed in the inner wall of the accommodating groove (9), a sliding block (19) is slidably connected to the inside of the sliding groove (18), an elastic rope (20) is fixedly connected to the inner wall of the sliding groove (18), an ejector rod (21) is slidably connected to the inside of the accommodating groove (9), a rotating wheel (22) is movably mounted inside the anti-stall falling device main body (1), a block (23) is fixedly mounted at the bottom of the rotating wheel (22), and a magnet (, a push rod (25) is fixedly arranged on the right side of the rotating wheel (22).

2. The stall-preventing fall-preventing device for a power rush-repair lift truck as claimed in claim 1, wherein: the rope (5) is made of two materials, one is conventional steel and the other is a material for isolating magnetism.

3. The stall-preventing fall-preventing device for a power rush-repair lift truck as claimed in claim 1, wherein: the speed reducing block (10) is provided with an opening and closing groove.

4. The stall-preventing fall-preventing device for a power rush-repair lift truck as claimed in claim 1, wherein: the interior of the rotating disc (12) is filled with hydraulic oil, and the rotating disc (12) is connected with the driving disc (6).

5. The stall-preventing fall-preventing device for a power rush-repair lift truck as claimed in claim 1, wherein: the elastic rope (20) is initially in a pulling and straightening state.

6. The stall-preventing fall-preventing device for a power rush-repair lift truck as claimed in claim 1, wherein: the magnets (24) on the two wheels (22) have opposite polarities.