CN108792901B

CN108792901B - Prevent weighing down perpendicular elevator safely

Info

Publication number: CN108792901B
Application number: CN201810811444.1A
Authority: CN
Inventors: 江斌华
Original assignee: Fujian Beida High Technology Development Co ltd
Current assignee: Fujian Beida High Technology Development Co ltd
Priority date: 2017-05-10
Filing date: 2017-05-10
Publication date: 2020-06-23
Anticipated expiration: 2037-05-10
Also published as: CN108792901A; CN107117521A; CN107117521B

Abstract

The invention provides a safe anti-falling vertical elevator, wherein when an active toggle block is in sliding contact with a friction surface of a second swing plate by virtue of the contact end surface, the friction surface can be in contact with different positions of the contact end surface due to the swing of a sealing swing plate, and the cylindrical cambered surface type contact end surface can enable the friction surface and the contact end surface to be smoother in the transition process of different contact positions, so that the vibration of the sealing swing plate and a toggle component is reduced, and each component is stable in action, high in precision and long in service time. The invention can realize the delayed starting of the lift car after the outer door is closed by a complete mechanical principle, effectively avoids the condition that the lift car is suddenly started to clamp people and threaten the personal safety due to the fault of a delayed starting circuit when the outer door is not completely closed and passengers are still at the outer door, and has more reliable and stable action principle and strong safety.

Description

Prevent weighing down perpendicular elevator safely

The patent application of the invention is a divisional application of a Chinese patent application No. 201710324968.3, the application No. of the original application is 201710324968.3, the application date is 2017, 05 and 10, and the invention name is a falling-preventing vertical elevator.

Technical Field

The invention relates to the field of elevators, in particular to a safe anti-falling vertical elevator.

Background

The vertical lift elevator is widely applied as common building equipment in daily life of people, the structure of the vertical lift elevator is known, the general structure comprises a lift car with an inner door and an outer door arranged on an elevator shaft and corresponding to a corresponding floor, the outer door is provided with a motor for driving the outer door to open, in the actual use process, when the lift car reaches a certain floor, the outer door is opened, passengers enter and exit the lift car, the circuit of the lift car is failed due to certain factors, the lift car is suddenly started, and the lift car clamps the passengers at the outer door at the upper edge or the lower edge of an outer door opening, so that casualties are caused; or when the car is about to drive away from the corresponding floor, but the outer door is not completely closed and passengers are still at the outer door, the car is suddenly started due to the reason of delayed starting circuit failure and the like, so that the car clamps the passengers at the outer door at the upper edge or the lower edge of the outer door opening, and casualties are caused. Many casualties have occurred in the world, and this threatens the safety of passengers greatly.

Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.

Disclosure of Invention

The invention aims to provide a safe anti-falling vertical elevator which can delay the starting of a lift car, ensure that the lift car is started after an outer door is completely closed, effectively avoid the situation that the lift car clamps people and the like threatens the personal safety, ensure the personal safety of passengers, and has novel and reasonable structure and strong practicability.

In order to achieve the purpose, the invention adopts the following technical scheme:

a safe anti-falling vertical elevator comprises an outer door arranged on an elevator shaft and corresponding to a corresponding floor, wherein the outer door comprises two door single bodies which slide and open, and the door single bodies are divided into a first door single body and a second door single body; the upper end and the lower end of the first door single body are respectively provided with a delay device for delaying the movement of the lift car; the first door single body is provided with an upper edge at the upper end, a lower edge at the lower end, a vertical opening and closing edge facing the second door single body, and a vertical root edge opposite to the vertical opening and closing edge and far away from the second door single body; the delay device comprises an upper fixing plate and a lower fixing plate which are parallel to the upper edge and are sequentially arranged from top to bottom, a switch limiting part which is arranged between the upper fixing plate and the lower fixing plate and used for limiting the lift car, and a driving device which is used for driving the switch limiting part to be switched; the upper fixing plate and the lower fixing plate are fixed on the elevator shaft and are positioned on one side, facing the elevator shaft, of the first door single body, and the upper fixing plate and the lower fixing plate are in sealing sliding contact with the first door single body;

the switch limiting part is pivoted with the upper fixing plate and the lower fixing plate through a vertical rotating shaft and can rotate in a horizontal plane; the driving device comprises a toggle component which slides along the length direction of the upper fixing plate and the lower fixing plate to toggle the switch limiting part to rotate, and a delay driving component which carries out delay driving on the toggle component; the switch limiting part comprises a pivoting part matched with the vertical rotating shaft, a limiting lug arranged on the pivoting part and facing to the edge direction of the vertical root part, a first passive shifting block arranged on the pivoting part and extending towards the direction vertical to the first door single body and shifted by the shifting component, a second passive shifting block arranged on the pivoting part and shifted by the shifting component and facing to the direction of the second door single body, and a limiting pressure spring for elastically limiting the pivoting part; the limiting pressure spring is provided with a first connecting end connected with the pivoting part and a second connecting end connected with the lower fixing plate; taking a vertical plane which passes through the axis of the vertical rotating shaft and is parallel to the first door monomer as a reference, wherein the second connecting end is positioned in the vertical plane, the first connecting end is positioned at one side of the vertical plane close to the inside of the elevator shaft, and an included angle between a vertical connecting line from the first connecting end to the axis of the vertical rotating shaft and a vertical connecting line from the second connecting end to the axis of the vertical rotating shaft is 45 degrees;

the first driven block is provided with a first side surface facing the second door single body, a second side surface facing the edge of the vertical root part and a first end surface facing the first door single body, and the shifting part comprises a shifting base block positioned on the first end surface and an active shifting block protruding towards the pivoting part and clamped on the first side surface; the shifting base block is provided with a third side surface facing the second door single body, and the first door single body is provided with a pushing block which is abutted against the third side surface and pushes the shifting part towards the edge of the vertical root part; the delay driving part comprises a strip-shaped fixed plate which is arranged between the upper fixed plate and the lower fixed plate in parallel, the upper side of the strip-shaped fixed plate is fixedly connected with the lower surface of the upper fixed plate, and the lower side of the strip-shaped fixed plate is fixedly connected with the upper surface of the lower fixed plate; the strip-shaped fixing plate is provided with a fourth side surface facing the first door single body and a fifth side surface facing the elevator shaft, and the limiting lug is provided with a sixth side surface facing the first door single body and in parallel abutting contact with the fifth side surface; the fourth side surface is formed with a first step, a second step and a third step which are gradually increased towards the vertical root edge direction; the second step is provided with a sealing swing plate extending towards the direction of the active poking block, the sealing swing plate comprises a first swing plate, an elastic sealing layer and a second swing plate which are connected together layer by layer towards the direction of the first door monomer, the first swing plate is connected with the second step together, a delay sliding gap for the poking part to slide in is formed between the second swing plate and the first door monomer, and the distance between the second swing plate and the first door monomer is smaller than the distance between the end part of the active poking block and the first door monomer; the elastic sealing layer is provided with an upper protruding edge protruding out of the upper edges of the first swinging plate and the second swinging plate and in sealing sliding contact with the upper fixing plate, and a lower protruding edge protruding out of the lower edges of the first swinging plate and the second swinging plate and in sealing sliding contact with the lower fixing plate; the third step is provided with a sealing block which is in sealing sliding contact with the first door monomer, the sealing block comprises a connecting part connected with the third step and a corresponding part which is in contact with the first door monomer and corresponds to the shifting base block, the connecting part is provided with an extending part which extends to the second step and presses the sealing swing plate against the second step, the corresponding part is provided with a guide rod which extends in parallel along the lower fixing plate and penetrates through the shifting base block and the pushing block in a sliding manner, the guide rod is provided with a first guide connecting end connected with the corresponding part and a second guide connecting end facing the second door monomer, the second guide connecting end is provided with a guide fixing block fixedly connected with the upper fixing plate and the lower fixing plate, the shifting base block is provided with a first sliding hole matched with the guide rod, and the pushing block is provided with a second sliding hole matched with the guide rod, a power storage pressure spring sleeved outside the guide rod is arranged between the corresponding part and the toggle base block in an extending manner, the active toggle block is provided with a contact end face correspondingly contacted with the second swing plate, the second swing plate is provided with a friction face in friction contact with the contact end face, and the friction force of any corresponding position of the friction face on the active toggle block is smaller than the elastic force of the power storage pressure spring at the corresponding position; the first swinging plate is provided with a seventh side surface facing the first step, a plurality of first pressure springs are arranged between the seventh side surface and the first step in an expanding manner, the sealing swinging plate is provided with a sealing fixed end connected with the second step and a sealing swinging end facing the active shifting block, and the first pressure springs are gradually concentrated from the sealing fixed end to the sealing swinging end; the sealed swinging end is provided with a bending part bending towards the direction of the limit bump, the bending part is provided with a first consequent inclined plane for the driving toggle block to slide into the delayed sliding gap in a consequent manner, and an acceleration gap for the toggle component to accelerate and collide the second passive toggle block is arranged between the bending part and the first passive toggle block; the contact end surface is provided with a ventilation opening which extends along the sealing swinging plate and penetrates through the driving shifting block, the sealing blocking block is provided with a one-way vent hole which extends along the extending part, communicates the delayed sliding gap and the outside and is used for exhausting the delayed sliding gap outwards, and the one-way vent hole is provided with a one-way vent valve; the contact end face is a cylindrical arc face with the axis perpendicular to the upper fixing plate and the lower fixing plate, and the plurality of ventilation openings are arranged along the axis direction of the contact end face.

The poking base block is provided with an eighth side surface facing the corresponding part, and a second homodromous inclined surface corresponding to the extending part and allowing the poking base block to slide into the space between the extending part and the elastic sealing contact layer is formed at the edge of the eighth side surface.

The pin joint part is in a disc shape coaxial with the vertical rotating shaft.

The extension portion extends to a middle portion of the second step.

After the technical scheme is adopted, in the actual use process, the limiting pressure spring has the elasticity that the limiting part of the switch is kept between the upper fixing plate and the lower fixing plate and the limiting lug is abutted against the strip-shaped fixing plate in the initial state, the state of the limiting part of the switch is ensured to be stable, when the lift car reaches a certain floor, the two single doors slide and open, when the first single door is opened and slides away from the second single door, the first single door drives the pushing block to push the shifting part, the shifting part shifts the first passive block to enable the pivoting part to overcome the elasticity of the limiting pressure spring and drive the limiting lug, the first passive block and the second passive block to rotate towards the corresponding clockwise direction, so that the limiting lug rotates towards the outer sides of the upper fixing plate and the lower fixing plate towards the lift car, and when the pivoting part rotates 90 degrees, the limiting lug can be clamped at the corresponding clamped part on the lift car, the first driven block faces the edge direction of the vertical root, the second driven block faces the direction vertical to the first door monomer, the first connecting end of the limiting pressure spring crosses the vertical plane and is positioned on the other side of the vertical plane, the elastic force of the limiting pressure spring is reversed, and the elastic force is used for keeping the limiting part of the switch to rotate outwards the upper fixing plate and the lower fixing plate and enabling the limiting lug to be clamped at the corresponding clamped part on the lift car, so that the lift car is limited and cannot move up and down, the limiting state of the lift car is ensured to be stable, and the situation that people clamping and the like suddenly starting the lift due to circuit faults in the process of passengers entering and exiting the lift car are threatened; meanwhile, as the first door monomer is continuously opened, the pushing block continuously pushes the toggle part to slide to the corresponding part along the guide rod and compress the force-accumulating pressure spring, so that the active toggle block slides into the delayed sliding gap along the potential of the first potential inclined plane of the bending part, under the action of the elasticity of each first pressure spring, the friction surface of the second swing plate is in close frictional contact with the contact end surface of the active toggle block, and meanwhile, the elastic sealing layer is in close sealing contact with the upper fixing plate and the lower fixing plate through the support of the first swing plate and the second swing plate, the sealing block, the upper fixing plate and the lower fixing plate are in sealing sliding contact with the first door monomer, and the delayed sliding gap can be enclosed into a sealing cavity which is only ventilated through the ventilation opening and the one-way ventilation hole; along with stir the part and remove the in-process to sealed jam gradually in postponing the sliding gap, the air in the sliding gap that delays can be followed ventilation opening and one-way air vent and discharged rapidly, and make stir the part and smoothly enter into and delay inside the sliding gap, and then stir the base block and match and stretch into the clearance between extension and the first door monomer to will hold power pressure spring compression in this clearance, initiatively stir the piece card and be in the tip of extension, whole action is smooth and easy, and is little to the free resistance of first door. When the lift car leaves a corresponding floor, the two single bodies slide oppositely to close the outer door, the first single body drives the pushing block to slide towards the direction close to the second single body, meanwhile, the shifting part slides along the guide rod and the pushing block under the action of the elastic force of the force accumulation pressure spring, but because the friction force of the second swinging plate generates friction force to the contact end surface of the active shifting block, the one-way vent valve of the one-way vent hole is closed, the delayed sliding gap in the form of a sealed cavity is only ventilated by virtue of the vent notch, the external air slowly enters the delayed sliding gap in the form of the sealed cavity, the shifting part is subjected to larger external air pressure, so that the shifting part slowly slides out of the delayed sliding gap behind the pushing block, when the first single body and the second single body are closed, the shifting part still slowly slides in the delayed sliding gap, and the switch limiting part is not recovered, the limiting convex block is still in a state of clamping a corresponding clamped part of the lift car, the lift car cannot be started immediately, the shifting part suddenly breaks away from friction force and outside air pressure after sliding to a bent part after delaying for a certain time, the resistance is not received, under the action of the elastic force of the force accumulation pressure spring, the shifting part suddenly accelerates by utilizing an acceleration gap and collides with the second driven block, the pin joint part overcomes the elastic force of the limiting pressure spring to drive the limiting convex block, the first driven block and the second driven block rotate 90 degrees towards opposite hour hand directions, the first driven block is restored towards the direction vertical to the first door monomer, the second driven block is restored towards the second door monomer, the limiting convex block is restored towards the edge direction of a vertical root and abuts against a fifth side surface of the strip-shaped fixing plate, the limiting convex block does not limit the lift car any more, the lift car is started and leaves a corresponding floor, and meanwhile, the first connecting end of the limiting pressure spring crosses the vertical plane again to be located in the vertical plane close to the interior One side of the car body is provided with a limit pressure spring, and the limit pressure spring has an elastic force which keeps the switch limit part between the upper fixing plate and the lower fixing plate and enables the limit lug to abut against the strip-shaped fixing plate, so that the state stability of the switch limit part is ensured. And each first pressure spring is gradually and densely arranged from the sealing fixed end to the sealing swinging end, so that the pressure of the sealing swinging plate on the contact end surface in the range from the root part to the end part can be ensured to be tight, the friction force is balanced, and the delay driving effect of the delay driving component on the shifting component can be further ensured. When the active toggle block is in sliding contact with the friction surface of the second oscillating plate by virtue of the contact end surface, the friction surface can be in contact with different positions of the contact end surface due to the oscillation of the sealing oscillating plate, and the contact end surface in the form of a cylindrical cambered surface can enable the friction surface and the contact end surface to be smoother and smoother in the transition process of different contact positions, so that the vibration of the sealing oscillating plate and the toggle component is reduced, and each component is stable in action, high in precision and long in service time. Compared with the prior art, the safe anti-falling vertical elevator can delay the starting of the elevator car, ensures that the elevator car is started after the outer door is completely closed, effectively avoids the situation that the elevator car clamps people and the like threatens the personal safety, ensures the personal safety of passengers, and has novel and reasonable structure and strong practicability.

Drawings

FIG. 1 is a first partial schematic of the present invention;

FIG. 2 is a second partial structural view of the present invention;

FIG. 3 is a top view partially in section and in accordance with the present invention;

FIG. 4 is a schematic top view partially in section of the present invention in a first use state;

FIG. 5 is a schematic top view partially in section showing a second use state of the present invention;

FIG. 6 is a schematic view, partially in section, taken from above, illustrating a third use state of the present invention;

FIG. 7 is a third partial structural view of the present invention;

FIG. 8 is a fourth partial structural view of the present invention;

fig. 9 is a schematic view of a fifth partial structure of the present invention.

In the figure:

1-car 11-first limit flange 111-first horizontal limit flange 112-first vertical limit flange 12-second limit flange 121-second horizontal limit flange 122-second vertical limit flange

2-first door unit 21-vertical opening and closing edge 22-vertical root edge 23-pushing block 24-elastic sealing contact pad 241-elastic sealing contact layer 242-support plate layer 243-second pressure spring 25-accommodating groove

3-second door monomer

4-delay device 41-upper fixing plate 42-lower fixing plate

43-switch limiting part 431-vertical rotating shaft 432-pivot part 433-limiting bump 4331-sixth side surface 434-first driven block 4341-first side surface 4342-second side surface 4343-first end surface 435-second driven block 436-limiting pressure spring 4361-first connecting end 4362-second connecting end

44-driving device 441-toggle component 4411-toggle base block 44111-first slide hole 44112-eighth side 44113-second clockwise inclined plane 4412-active toggle block 44121-contact end surface 44122-ventilation notch

442-delay driving part 4421-strip-shaped fixed plate a 1-fifth side surface a 2-first step a 3-second step a 4-third step 4422-sealing swinging plate b 1-first swinging plate b 2-elastic sealing layer b 21-upper protruding edge b 22-lower protruding edge b 3-second swinging plate b 4-bent part b 41-first clockwise inclined surface 4423-sealing block c 1-connecting part c 11-extending part c 2-corresponding part c 21-guide rod c 22-guide fixed block c 3-one-way vent hole c 4-one-way vent valve 4424-power storage pressure spring 4425-first pressure spring.

Detailed Description

In order to further explain the technical solution of the present invention, the following detailed description is given by way of specific examples.

The invention relates to a safe anti-falling vertical elevator, which comprises a car 1 with an inner door and an outer door arranged on an elevator shaft and corresponding to a corresponding floor, wherein the outer door comprises two door monomers which slide and open, and the door monomers are divided into a first door monomer 2 and a second door monomer 3; the upper end and the lower end of the first door single body 2 are respectively provided with a delay device 4 for delaying the movement of the lift car 1; the first door unit 2 has an upper edge at an upper end, a lower edge at a lower end, a vertical opening and closing edge 21 facing the second door unit 3, and a vertical root edge 22 opposite to the vertical opening and closing edge 21 and distant from the second door unit 3; the delay device 4 comprises an upper fixing plate 41 and a lower fixing plate 42 which are parallel to the upper edge and are sequentially arranged from top to bottom, a switch limiting part 43 which is arranged between the upper fixing plate and the lower fixing plate and used for limiting the lift car 1, and a driving device 44 which is used for driving the switch limiting part 43 to be switched; the upper fixing plate 41 and the lower fixing plate 42 are fixed on the elevator shaft and are positioned on one side of the first door single body 2 facing the elevator shaft, and both the upper fixing plate 41 and the lower fixing plate 42 are in sealing sliding contact with the first door single body 2;

the switch limiting part 43 is pivoted with the upper fixing plate 41 and the lower fixing plate 42 through a vertical rotating shaft 431 and can rotate in the horizontal plane; the driving device 44 includes a toggle member 441 sliding the toggle switch limiting portion 43 along the length direction of the upper fixing plate 41 and the lower fixing plate 42 to rotate, and a delay driving member 442 delaying the actuation of the toggle member 441; the switch limiting part 43 comprises a pivoting part 432 matched with the vertical rotating shaft 431, a limiting bump 433 arranged on the pivoting part 432 towards the direction of the vertical root edge 22, a first driven block 434 arranged on the pivoting part 432 and extending towards the direction vertical to the first door single body 2 and driven by the shifting part 441, a second driven block 435 arranged on the pivoting part 432 and driven by the shifting part 441 towards the direction of the second door single body 3, and a limiting pressure spring 436 for elastically limiting the pivoting part 432; the limiting pressure spring 436 is provided with a first connecting end 4361 connected with the pivoting part 432 and a second connecting end 4362 connected with the lower fixing plate 42; by taking a vertical plane which passes through the axis of the vertical rotating shaft 431 and is parallel to the first door single body 2 as a reference, the second connecting end 4362 is positioned in the vertical plane, the first connecting end 4361 is positioned at one side of the vertical plane close to the inside of the elevator shaft, and the included angle between the vertical connecting line from the first connecting end 4361 to the axis of the vertical rotating shaft 431 and the vertical connecting line from the second connecting end 4362 to the axis of the vertical rotating shaft 431 is 45 degrees;

the first dialled block 434 has a first side 4341 facing the second door single body 3, a second side 4342 facing the vertical root edge 22 and a first end 4343 facing the first door single body 2, the toggle part 441 comprises a toggle base 4411 at the first end 4343 and an active toggle block 4412 protruding towards the pivot part 432 and clamped to the first side 4341; the toggle base 4411 has a third side facing the second door unit 3, and the first door unit 2 is provided with a push block 23 abutting against the third side to push the toggle part 441 towards the vertical root edge 22; the delay driving part 442 includes a bar-shaped fixing plate 4421 disposed in parallel between the upper fixing plate 41 and the lower fixing plate 42, an upper side of the bar-shaped fixing plate 4421 is fixedly coupled to a lower surface of the upper fixing plate 41, and a lower side of the bar-shaped fixing plate 4421 is fixedly coupled to an upper surface of the lower fixing plate 42; the strip-shaped fixing plate 4421 has a fourth side surface facing the first door unit 2 and a fifth side surface a1 facing the elevator shaft, and the limit projection 433 has a sixth side surface 4331 facing the first door unit 2 and in parallel abutting contact with the fifth side surface a 1; the fourth side is formed with a first step a2, a second step a3, and a third step a4 that are progressively higher towards the vertical root edge 22; the second step a3 is provided with a sealing swing plate 4422 extending towards the direction of the active poking block 4412, the sealing swing plate 4422 comprises a first swing plate b1, an elastic sealing layer b2 and a second swing plate b3 which are connected together layer by layer towards the direction of the first door monomer 2, the first swing plate b1 is connected with the second step a3, a delay sliding gap for the poking part 441 to slide into is formed between the second swing plate b3 and the first door monomer 2, and the distance between the second swing plate b3 and the first door monomer 2 is smaller than the distance between the end of the active poking block 4412 and the first door monomer 2, and the structure can ensure that the second swing plate b3 is tightly contacted with the active poking block 4412; elastic seal layer b2 has upper protruding edge b21 protruding from the upper edges of first swing plate b1 and second swing plate b3 and being in sealing sliding contact with upper fixed plate 41, and lower protruding edge b22 protruding from the lower edges of first swing plate b1 and second swing plate b3 and being in sealing sliding contact with lower fixed plate 42, upper protruding edge b21 and lower protruding edge b22 ensuring that elastic seal layer b2 is in sealing contact with upper fixed plate 41 and lower fixed plate 42 with first swing plate b1 and second swing plate b3 clamped and fixed; the third step a4 is provided with a sealing stopper 4423 in sealing sliding contact with the first door unit 2, the sealing stopper 4423 includes a connection part c1 connected to the third step a4 and a corresponding part c2 in contact with the first door unit 2 and corresponding to the toggle base 4411, the connection part c1 is formed with an extension part c11 extending to the second step a3 to press the sealing swing plate 4422 against the second step a3, the corresponding part c2 is provided with a guide rod c21 extending in parallel along the lower fixing plate 42 and slidably penetrating the toggle base 4411 and the push block 23, the guide rod c21 has a first guide connection end connected to the corresponding part c2 and a second guide connection end facing the second door unit 3, the second guide connection end is provided with a guide fixing block c22 fixedly connected to the upper fixing plate 41 and the lower fixing plate 42, the toggle base 4411 is formed with a first slide hole 44111 fitted to the guide rod c21, the push block 23 is formed with a second slide hole fitted to the guide rod 21, a force storage pressure spring 4424 sleeved outside the guide rod c21 is arranged between the corresponding part c2 and the toggle base block 4411 in a stretching mode, the active toggle block 4412 is provided with a contact end surface 44121 correspondingly contacted with the second swinging plate b3, the second swinging plate b3 is provided with a friction surface in friction contact with the contact end surface 44121, and the friction force of any corresponding position of the friction surface on the active toggle block 4412 is smaller than the elastic force of the force storage pressure spring 4424 at the corresponding position; the first swinging plate b1 has a seventh side surface facing the first step a2, a plurality of first pressure springs 4425 are arranged between the seventh side surface and the first step a2, the sealing swinging plate 4422 has a sealing fixed end connected with the second step a3 and a sealing swinging end facing the active shifting block 4412, and the directions of the first pressure springs 4425 from the sealing fixed end to the sealing swinging end are gradually increased; the sealed swinging end is provided with a bent part b4 bent towards the direction of the limit bump 433, the bent part b4 is provided with a first consequent inclined plane b41 for the driving toggle block 4412 to slide into the delayed sliding gap in a consequent manner, and an acceleration gap for the toggle part 441 to accelerate and collide the second passive toggle block 435 is arranged between the bent part b4 and the first passive toggle block 434; the contact end surface 44121 is formed with a ventilation slit 44122 extending through the active tumbler 4412 along the seal swinging plate 4422, the seal stopper 4423 is formed with a one-way ventilation hole c3 extending along the extension part c11 to communicate the retarded sliding gap and the outside and to allow the retarded sliding gap to exhaust outward, and the one-way ventilation hole c3 is provided with a one-way ventilation valve c 4. In the practical use process of the invention, in the initial state, the limiting pressure spring 436 has the elasticity of keeping the switch limiting part 43 between the upper fixing plate 41 and the lower fixing plate 42 so as to enable the limiting lug 433 to abut against the strip-shaped fixing plate 4421, thereby ensuring the stable state of the switch limiting part 43, when the car 1 reaches a certain floor, the two single bodies slide and open, when the first single body 2 opens and slides away from the second single body 3, the first single body 2 drives the pushing block 23 to push the toggle part 441, the toggle part 441 toggles the first passive block 434 to enable the pivot part 432 to overcome the elasticity of the limiting pressure spring 436 and drive the limiting lug 433, the first passive block 434 and the second passive block 435 to rotate towards the corresponding direction, so that the limiting lug 433 rotates towards the car 1 towards the outer sides of the upper fixing plate 41 and the lower fixing plate 42, and when the pivot part 432 rotates 90 degrees, the limiting lug 433 can be clamped at the corresponding clamped part on the car 1, the first driven block 434 faces the direction of the vertical root edge 22, the second driven block 435 faces the direction perpendicular to the first door single body 2, the first connecting end 4361 of the limiting pressure spring 436 crosses the vertical plane and is positioned on the other side of the vertical plane, the elastic force of the limiting pressure spring 436 is reversed, and the elastic force is used for keeping the switch limiting part 43 to rotate outwards towards the upper fixing plate 41 and the lower fixing plate 42 and enabling the limiting bump 433 to be clamped at the corresponding clamped part on the car 1, so that the car 1 is limited and cannot move upwards and downwards, the limiting state of the car 1 is ensured to be stable, and the situation that the personal safety is threatened by people such as clamping people and the like caused by sudden start of the elevator due to circuit faults in the process that; meanwhile, as the first door monomer 2 is continuously opened, the push block 23 continuously pushes the toggle part 441 to slide towards the corresponding part c2 along the guide rod c21 and compress the force storage pressure spring 4424, so that the active toggle block 4412 slides into the delayed sliding gap along the first compliant inclined surface b41 of the bending part b4, under the elastic action of each first pressure spring 4425, the friction surface of the second swinging plate b3 is in tight friction contact with the contact end surface 44121 of the active toggle block 4412, meanwhile, the elastic sealing layer b2 is in tight sealing contact with the upper fixing plate 41 and the lower fixing plate 42 through the support of the first swinging plate b1 and the second swinging plate b3, and the sealing block 4423, the upper fixing plate 41 and the lower fixing plate 42 are in sealing sliding contact with the first door monomer 2, so that the delayed sliding gap is surrounded into a sealing cavity which is ventilated with the outside only through the ventilation notch 44122 and the one-way ventilation hole c 3; when the toggle component 441 gradually moves towards the sealing and blocking piece 4423 in the delay sliding gap, air in the delay sliding gap is quickly discharged from the ventilation notch 44122 and the one-way vent hole c3, so that the toggle component 441 smoothly enters the delay sliding gap, the toggle base piece 4411 is further toggled to extend into the gap between the extension part c11 and the first door single body 2 in a matched mode, the power storage compression spring 4424 is compressed in the gap, the active toggle block 4412 is clamped at the end part of the extension part c11, the whole action is smooth, and the resistance to the first door single body 2 is small. When the car 1 is going to leave the corresponding floor, the two single doors slide and slide oppositely to close the outer door, the first single door 2 drives the pushing block 23 to slide towards the direction close to the second single door 3, meanwhile, the toggle part 441 slides along the guide rod c21 and the pushing block 23 under the action of the elastic force of the accumulated pressure spring 4424, but because the friction surface of the second swing plate b3 generates friction force towards the contact end surface 44121 of the active toggle block 4412, and the one-way vent valve c4 of the one-way vent hole c3 is closed, the delayed sliding gap in the form of a sealed cavity is ventilated only by the ventilation notch 44122, the external air slowly enters the delayed sliding gap in the form of a sealed cavity, the toggle part 441 is subjected to external large air pressure, so that the toggle part 441 lags behind the pushing block 23 and slowly slides out of the delayed sliding gap, and when the first single door 2 and the second single door 3 are closed, the toggle part 441 still slowly slides in the delayed sliding gap, at this time, the switch limiting part 43 is not recovered, the limiting lug 433 is still in a state of clamping a corresponding clamped part of the car 1, the car 1 cannot be started immediately, the toggle part 441 suddenly accelerates by using an acceleration gap and collides with the second passive block 435 under the action of the elastic force of the power storage pressure spring 4424 until the toggle part 441 slides to the bending part b4 after a certain time delay, so that the pivot part 432 overcomes the elastic force of the limiting pressure spring 436 to drive the limiting lug 433, the first passive block 434 and the second passive block 435 to rotate 90 degrees in opposite clockwise directions, the first passive block 434 is recovered to a direction perpendicular to the first door single body 2, the second passive block 435 is recovered to the second door single body 3, the limiting lug 433 is recovered to a direction of the vertical root edge 22 and abuts against a fifth side face a1 of the strip-shaped fixing plate 4421, the limit bump 433 does not limit the car 1 any longer, the car 1 starts and leaves a corresponding floor, and meanwhile the first connection end 4361 of the limit pressure spring 436 passes through the vertical plane again and is positioned at one side of the vertical plane close to the elevator shaft, so that the limit pressure spring 436 has an elastic force for keeping the switch limit part 43 between the upper fixing plate 41 and the lower fixing plate 42 to enable the limit bump 433 to abut against the strip-shaped fixing plate 4421, and the state of the switch limit part 43 is ensured to be stable. Moreover, the directions of the first compression springs 4425 from the fixed sealing end to the swinging sealing end gradually become dense, so that the pressure of the swinging sealing plate 4422 on the contact end surface 44121 from the root to the end is ensured to be tight and the friction force is ensured to be balanced, and further, the delay driving effect of the delay driving component 442 on the toggle component 441 can be ensured. Further preferably, one-way vent valve c4 may be embodied as a tire valve core structure; the first swing plate b1 and the second swing plate b3 are both steel plates having elasticity.

Preferably, the first door unit 2 is provided with an elastic sealing contact pad 24 elastically and sealingly slidably contacting the upper fixing plate 41, the lower fixing plate 42, the corresponding portion c2 and the toggle base 4411. In the practical use process of the present invention, the first door unit 2 can slide relative to the upper fixing plate 41, the lower fixing plate 42, the corresponding portion c2 and the toggle base 4411 by means of the elastic sealing contact pad 24, and also elastically and sealingly contact with the upper fixing plate 41, the lower fixing plate 42, the corresponding portion c2 and the toggle base 4411, even if the sliding contact surface is worn, the elasticity of the elastic sealing contact pad 24 can be used for wear compensation, thereby achieving a long-term effective sealing sliding contact effect.

In order to realize the specific structure of the elastic sealing contact pad 24, the first door unit 2 is formed with an accommodating groove 25 extending from the root of the pushing block 23 to the vertical root edge 22 and exceeding the sealing block 4423; the elastic sealing contact pad 24 includes an elastic sealing contact layer 241 elastically and sealingly slidably contacting the upper fixing plate 41, the lower fixing plate 42, the corresponding portion c2 and the toggle base 4411, a support plate layer 242 supported between the elastic sealing contact layer 241 and the bottom of the accommodating groove 25 and connected to the elastic sealing contact layer 241, and a plurality of second compression springs 243 symmetrically stretched between the support plate layer 242 and the bottom of the accommodating groove 25. In the practical use process of the present invention, the supporting plate layer 242 can support the elastic sealing contact layer 241 in parallel, so as to avoid the elastic sealing contact layer 241 from deforming under stress, and ensure the sealing contact effect of the elastic sealing contact layer 241 with the upper fixing plate 41, the lower fixing plate 42, the corresponding part c2 and the toggle base 4411; moreover, each second compression spring 243 can significantly elastically support the support plate layer 242 and the elastic sealing contact layer 241, so that sliding wear of the contact surface can be effectively compensated for. The elastic seal contact layer 241 may specifically be a wear-resistant rubber layer; the support slab 242 may be a rigid steel plate that is not easily deformed.

Preferably, the contact end surface 44121 is a cylindrical arc surface having an axis perpendicular to the upper fixing plate 41 and the lower fixing plate 42, and the plurality of vent slits 44122 are arranged along the axis of the contact end surface 44121. When the active toggle block 4412 is in sliding contact with the friction surface of the second swinging plate b3 through the contact end surface 44121, the friction surface is in contact with different positions of the contact end surface 44121 due to the swinging of the sealing swinging plate 4422, and the cylindrical arc-shaped contact end surface 44121 enables the friction surface and the contact end surface 44121 to be smoother and smoother in the transition process of different contact positions, so that the vibration of the sealing swinging plate 4422 and the toggle member 441 is reduced, and each component is stable in action, high in precision and long in service time.

Preferably, the toggle base 4411 has an eighth side 44112 facing the corresponding portion c2, and an edge of the eighth side 44112 is formed with a second compliant ramp 44113 corresponding to the extension c11 for the toggle base 4411 to slide into between the extension c11 and the resilient sealing contact layer 241. The toggle base 4411 can slide into the gap between the extension c11 and the first door unit 2 by means of the second ramp 44113 and compress the power spring 4424 in the gap.

Preferably, the pivoting portion 432 is a disk shape coaxial with the vertical rotation shaft 431. This structure can make the pivoting part 432 rotate more smoothly.

Preferably, the extension c11 extends to the middle of the second step a 3. In the practical use of the present invention, the extension c11 is used to press-fasten the seal fixing end of the seal swinging plate 4422 to the second step a3, and when the active toggle block 4412 is used to press the seal swinging plate 4422, the edge of the second step a3 can be used as a fulcrum to support, and the extension c11 is always tightly connected with the seal swinging plate 4422.

In order to realize a specific structure that each delay device 4 limits the car 1, preferably, the upper end of the car 1 is provided with a first limit flange 11 corresponding to the limit projection 433 of the corresponding delay device 4; the first limit flange 11 comprises a first horizontal limit flange 111 clamped above the corresponding limit bump 433, and a first vertical limit flange 112 vertically arranged for blocking the rotation of the limit bump 433; the first horizontal stop flange 111 has a first stop end towards the vertical root edge 22 and a second stop end towards the vertical opening and closing edge 21, at which the first vertical stop flange 112 is connected downwards; when the limit projection 433 of the corresponding delay device 4 rotates by exactly 90 degrees towards the car 1, the limit projection is blocked by the first vertical limit flange 112 and clamped below the first limit flange 11; the lower end of the car 1 is provided with a second limit flange 12 corresponding to the limit projection 433 of the corresponding delay device 4; the second position-limiting flange 12 comprises a second horizontal position-limiting flange 121 clamped below the corresponding position-limiting projection 433, and a second vertical position-limiting flange 122 vertically arranged to block the rotation of the position-limiting projection 433; the second horizontal stop flange 121 has a third stop end towards the vertical root edge 22 and a fourth stop end towards the vertical opening and closing edge 21, at which the second vertical stop flange 122 is connected downwards; when the limit projection 433 of the corresponding delay device 4 rotates by exactly 90 ° toward the car 1, it is blocked by the second vertical limit flange 122 and is caught above the second limit flange 12.

In order to enhance the reliability and balance of delaying the car 1, it is preferable that both upper and lower ends of the two door units are provided with delay devices 4 for delaying the movement of the car 1. And the two door individual delay devices 4 may share the same upper and

lower fixing plates

41 and 42.

The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.

Claims

1. A safe anti-falling vertical elevator comprises an outer door arranged on an elevator shaft and corresponding to a corresponding floor, wherein the outer door comprises two door single bodies which slide and open, and the door single bodies are divided into a first door single body and a second door single body; the method is characterized in that: the upper end and the lower end of the first door single body are respectively provided with a delay device for delaying the movement of the lift car; the first door single body is provided with an upper edge at the upper end, a lower edge at the lower end, a vertical opening and closing edge facing the second door single body, and a vertical root edge opposite to the vertical opening and closing edge and far away from the second door single body; the delay device comprises an upper fixing plate and a lower fixing plate which are parallel to the upper edge and are sequentially arranged from top to bottom, a switch limiting part which is arranged between the upper fixing plate and the lower fixing plate and used for limiting the lift car, and a driving device which is used for driving the switch limiting part to be switched; the upper fixing plate and the lower fixing plate are fixed on the elevator shaft and are positioned on one side, facing the elevator shaft, of the first door single body, and the upper fixing plate and the lower fixing plate are in sealing sliding contact with the first door single body;

2. The safety anti-falling vertical elevator according to claim 1, characterized in that: the poking base block is provided with an eighth side surface facing the corresponding part, and a second homodromous inclined surface corresponding to the extending part and allowing the poking base block to slide into the space between the extending part and the elastic sealing contact layer is formed at the edge of the eighth side surface.

3. The safety anti-falling vertical elevator according to claim 2, characterized in that: the pin joint part is in a disc shape coaxial with the vertical rotating shaft.

4. The safety anti-falling vertical elevator according to claim 3, characterized in that: the extension portion extends to a middle portion of the second step.