CN117023320A

CN117023320A - Platform lifting system

Info

Publication number: CN117023320A
Application number: CN202311115370.5A
Authority: CN
Inventors: 储晔; 吕战强
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2023-11-10

Abstract

The invention discloses a platform lifting system, relates to the field of corridor lifting equipment, and particularly relates to a platform type carrying system for a corridor. The device comprises a rack guide rail (2), a bearing platform (1), a bearing platform driving device, a rear end telescopic rod mechanism, an upper and lower railing closing mechanism, a travel switch and an operation panel; the bottom of the bearing platform (1) is provided with a bottom frame (118) and a bottom plate (120), and the periphery of the bearing platform is provided with rails, so that a rail structure with the periphery closed is formed; the bearing platform driving device comprises two front driving motor groups (119) and two rear driving motor groups (117) to form four motor driving layouts; the rear end telescopic rod mechanism comprises a rear vertical rod I (112), a rear vertical rod II (113), two telescopic rod assemblies (116), a telescopic motor I (114) and a telescopic motor II (115); the upper and lower railing closing mechanism is provided with an upper railing (16) and a lower railing (7).

Description

Platform lifting system

Technical Field

The invention discloses a platform lifting system, relates to the field of corridor lifting equipment, and particularly relates to a platform type carrying system for a corridor.

Background

For the self reasons of the house structure, for the elevators additionally installed in old buildings, a plurality of elevators can only be arranged at the position of a half floor, and can not directly reach the entrance of a house in a flat floor. For example, when a resident in a fifth building takes an elevator, the resident can only reach the exit of a fourth building and go up to the home by a half-layer stair, or reach the exit of the fifth building and go down to the home by a half-layer stair.

The above-mentioned half-floor condition of registering one's residence is a huge obstacle that is difficult to overcome for the old person who is inconvenient to move or the disabled person who needs to travel by wheelchair.

The convenient elevator is additionally arranged on the corridor with steps, so that the old can go upstairs and downstairs conveniently, the requirement is achieved to a certain extent, and at present, the seat elevator is more common, and the guide rail of the seat elevator is usually hung on the wall of the corridor or hung on a handrail of the corridor. Such a seat can be moved up and down along the corridor. But there are three significant drawbacks to this type of stairlift:

firstly, the safety is poor, and when taking, especially when going down, this kind of seat is hung at stair mouth edge, and for the inconvenient or inflexible people of action, the risk that the passenger falls the corridor of extremely easily takes place, needs normal people to assist to support in order to take reliably.

Secondly, the bearing capacity is small, only one person can take, and only the person can walk freely. The people who need to travel by the wheelchair cannot go upstairs and downstairs freely, and cannot carry accompanying personnel at the same time.

Third is the risk of installation safety, and such stairlift is operated by means of guide rails in the form of a hitch. Each fixing point of the guide rail on the wall must be strong to ensure proper operation of the product. If one of the fixing points is loose, the load of the fixing point can be immediately dispersed to the adjacent fixing point, so that the adjacent fixing point is overloaded to work and fail rapidly, and the adjacent point outside the adjacent fixing point is also caused to fail after the adjacent point fails, so that more fixing points spread, and when the suspension force is insufficient, the accident of rail collapse can be caused. The fixed point installation of the guide rail is a hidden project, and cannot effectively monitor the quality of each point, so that the product cannot show problems in early use and can be found only when failure occurs. At the same time, the product is difficult to have enough bearing capacity just because of the hanging mode.

How to install a set of system in the corridor, realize a plurality of passengers to run up and down, have sufficient security again, solve the problem that one person, many people or wheeled chair passenger's freedom goes up and down the step, be the technical problem that one expects to solve urgently, relate to improvement of special crowd's quality of life, relate to civil engineering simultaneously, have great social meaning.

Disclosure of Invention

The invention aims to provide a platform lifting system aiming at the defects, and the invention designs a bottom guide rail supporting type mobile platform which is built along a stair path, has wide platform area and large bearing capacity, can simultaneously take a plurality of people such as wheelchair personnel, accompanying people and the like, has a closed fence structure and ensures the safety of passengers. When no person takes the stair, the platform is stopped at the lowest position and automatically opens the railing, so that the normal function of the up-and-down smoothness of the corridor is maintained.

A platform lifting system is realized by adopting the following technical scheme:

the platform lifting system comprises a rack guide rail 2, a bearing platform 1, a bearing platform driving device, a rear end telescopic rod mechanism, an upper railing closing mechanism, a lower railing closing mechanism, a travel switch and an operation panel.

Two sets of rack guide rails 2 are additionally arranged on the corridor, and the two sets of rack guide rails are directly arranged on the stair step surface in a landing mode through the foundation, so that the bearing capacity is high, and the stair is stable and reliable.

The bottom of the bearing platform 1 is provided with a bottom frame 118 and a bottom plate 120, the periphery of the bearing platform is provided with a front rail, a rear rail, a front turning plate, a rear turning plate, a left cross bar, a right cross bar, a left side plate, a right side plate and the like, a surrounding closed rail structure is formed, passengers cannot fall to the outside during riding, and the bearing platform has enough good safety. While the floor 120 of the load bearing platform has a large area. Front turning plates 104 and rear turning plates 103 are respectively arranged at the front and rear parts of the bottom of the bearing platform 1.

The bearing platform 1 is also provided with a front and rear railing closing mechanism, which is provided with a rear railing 101 and a front railing 102, one end of the bearing platform is installed with the vertical rod through a railing motor 122, and the railing motor 122 rotates under the control of instructions, so that the rear railing 101 and the front railing 102 can be leveled or erected.

The bearing platform driving device comprises two precursor motor groups 119 and two rear drive motor groups 117, the bottom of the bearing platform 1 is provided with the precursor motor groups 119 and the rear drive motor groups 117, the output shafts of the two precursor motor groups 119 and the two rear drive motor groups 117 are respectively provided with gears, and the gears are meshed with each other by four gears to travel on the rack guide rail 201, so that a layout driven by four motors is formed;

the rear telescopic rod mechanism comprises a first rear upright 112, a second rear upright 113, two telescopic rod assemblies 116, a first telescopic motor unit 114 and a second telescopic motor unit 115. The rear upright post 112 and the rear upright post 113 are internally provided with long holes, and a telescopic rod assembly 116 is arranged inside the long holes. The telescoping pole assembly 116 has a telescoping pole 116-1 with a rack 116-2 mounted on the telescoping pole 116-1. The bottom of the telescopic rod assembly 116 is provided with a roller 116-3.

A first telescopic motor unit 114 is arranged on the side face of the first rear upright rod 112, a gear is arranged on the output shaft of the first telescopic motor unit 114 and meshed with a rack 116-2 on a telescopic rod 116-1, a second telescopic motor unit 115 is arranged on the side face of the second rear upright rod 113, a gear is arranged on the output shaft of the second telescopic motor unit 115 and meshed with the rack 116-2 on the telescopic rod 116-1, and the telescopic rod assembly 116 can be vertically telescopic under the driving of the telescopic motor unit. A rear drive motor group 117 is arranged below the two telescopic rod assemblies 116, and a gear is arranged on an output shaft of the rear drive motor group 117 and can be meshed with the rack guide rail 2 for transmission.

The upper and lower railing closing mechanism is provided with an upper railing 16 and a lower railing 7, one end of the upper railing 16 is installed with a vertical rod IV 17 through an upper railing motor 15, one end of the lower railing 7 is installed with a vertical rod I8 through a lower railing motor 6, and railing motors 15 and 6 rotate under command control, so that the upper railing 16 and the lower railing 7 can be placed flat or erected.

The upper railing 16 and the lower railing 7 are respectively arranged at the upper end and the lower end of the corridor, and can be opened or put down under the drive of a railing motor, so that the corridor is closed when put down, the running safety of the platform is ensured, the corridor is restored when opened, and the original conventional corridor function is maintained.

The three places of the platform type corridor elevator are provided with travel switches, the lower travel switch 12 is installed on the ground at the lower end, the upper travel switch 14 is installed at the upper end position of the guide rail, and the middle travel switch 13 is installed at the lower end position of the guide rail.

The travel switches at the three positions respectively control the platform to accurately position and stop at the tail end position and the upper end position of the ground, and the bearing platform realizes the lifting of the telescopic rod and the action switching of the driving of the rear-drive motor group at the inflection point position.

The platform type corridor elevator is provided with three operation panels, and a lower end panel 4 is installed on the lower end wall surface of the corridor and is used for operating and using when people below take a ride. An upper end panel 5 is installed on the upper end wall surface of the corridor, and is used for operation when people above the corridor ride. The operation panel is connected with the electric control box,

the mobile bearing platform is provided with a key panel 105 for pressing corresponding buttons according to the up-down requirement operation after the passenger enters the platform.

The platform lifting system is matched with an electric control box (main control box), and an electric control switch, an alternating current contactor, a relay, a PLC programmable controller, a control circuit board, a motor controller and the like are arranged in the electric control box. The operation panel and the key panel 105 are connected to an electrical control box. Under the control of a PLC (programmable logic controller) or a singlechip, the normal operation of a platform lifting system is ensured.

The platform lifting system has the beneficial effects that:

the system platform is erected on the corridor, so that the riding area is large, and the bearing capacity is high. Can take a plurality of people, wheelchair-sitting personnel, wheelchair accompanying personnel and the like at the same time, and solves the difficult problem that people with inconvenient actions cannot go upstairs and downstairs freely for a long time.

A platform lifting system ensures that passengers have enough safety guarantee in operation due to the fact that a closed fence is designed on a platform.

A platform lifting system is designed with closed railings at the upper end and the lower end, so that the safe use of a corridor is effectively controlled, and non-riding persons are prevented from entering an operation area.

The platform lifting system is particularly suitable for elevators additionally installed in old buildings, can directly reach a door opening for entering a home in a flat layer, and solves the problems that a plurality of elevators reach positions at which the exits can only be arranged at half layers and cannot directly reach the door opening for entering the home in a flat layer.

A platform lifting system has the remarkable characteristics of high bearing capacity and high safety. Creates a convenient condition for the elderly, handicapped persons, persons with limited actions and the like to go upstairs and downstairs, so that the elderly, handicapped persons, persons with limited actions and the like can participate in social activities more, the quality of life of the elderly, handicapped persons and persons is improved and improved practically, the handicapped persons and persons with limited actions go upstairs and downstairs, and the handicapped persons have a beneficial promoting effect on improving the life of the aged persons and the persons with limited actions have positive social significance.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of a platform lift system;

FIG. 2 is a schematic diagram of a stand-by, open channel configuration of a platform lift system;

FIG. 3 is a schematic view of a structure of a load-bearing platform and a rear-end telescopic rod mechanism of a platform lifting system;

FIG. 4 is a schematic illustration of the mechanism of a rail of a platform lift system;

FIG. 5 is a schematic diagram of a platform operating state of the platform lift system;

FIG. 6 is a schematic diagram of a rear drive configuration of a platform lift system;

FIG. 7 is a schematic diagram of a platform rear end lift and front drive relationship for a platform lift system;

FIG. 8 is a schematic view of a platform lowest position of the platform lift system;

FIG. 9 is a schematic illustration of the position of the inflection point of the rear drive and roller transition of the platform lift system;

FIG. 10 is a schematic representation of a landing elevation system after a minimum position admission or descent arrival;

FIG. 11 is a schematic illustration of a lowest position of a platform lift system waiting for an initial or downlink arrival;

FIG. 12 is an up-going arrival or down-going waiting schematic of a platform lift system;

fig. 13 is a schematic diagram of an up-admission or down-admission status of the platform lift system.

In the accompanying drawings:

1. the bearing platform, 2, the guide rail, 3, the main control box, 4, the lower end panel, 5, the upper end panel, 6, the lower railing motor, 7, the lower railing, 8, the first upright, 9, the second upright, 10, the rail rod, 11, the third upright, 12, the lower travel switch, 13, the middle travel switch, 14, the upper travel switch, 15, the upper railing motor, 16, the upper railing, 17, the fourth upright, 18, the fifth upright, 101, the rear railing, 102, the front railing, 103, the rear turning plate, 104, the front turning plate, 105, the key panel, 106, the left horizontal bar, 107, the left side plate, 108, the right side plate, 109 and the first front upright, 110, a front upright II, 111, a right horizontal bar, 112, a rear upright I, 113, a rear upright II, 114, a telescopic motor group I, 114-1, a speed reducer, 114-2, a motor, 115, a telescopic motor group II, 116, a telescopic rod assembly, 116-1, a telescopic rack, 116-2, a telescopic rod, 116-3, a roller, 117, a rear drive motor group, 118, a bottom frame, 119, a front drive motor group, 120, a bottom plate, 121, a gear, 122, a railing motor, 201, a rack guide rail, 202, a rack cover, 203, a ground anchor, 204, a rack mounting screw, 205, a ground cement screw, 206, and a rack cover mounting screw.

Detailed Description

Referring to fig. 1-13, a platform lifting system comprises a rack guide rail 2, a bearing platform 1, a bearing platform driving device, a rear end telescopic rod mechanism, an upper railing closing mechanism, a lower railing closing mechanism, a travel switch and an operation panel.

The bottom of the bearing platform 1 is provided with a bottom frame 118 and a bottom plate 120, the periphery of the bearing platform is provided with a front rail 102, a rear rail 101, a front turning plate 104, a rear turning plate 103, a left transverse bar 106, a right transverse bar 111, a left side plate 107, a right side plate 108 and the like, a surrounding closed rail structure is formed, and passengers cannot fall to the outside during riding, so that the bearing platform has enough good safety. While the floor 120 of the load bearing platform has a large area.

The bearing platform 1 is also provided with a front and rear railing closing mechanism, which is provided with a rear railing 101 and a front railing 102, one end of the bearing platform is installed with the vertical rod through a railing motor 122, and the railing motor 122 rotates under the control of instructions, so that the rear railing 101 and the front railing 102 can be placed flat or vertical (as shown in figures 1 and 3).

The upper and lower railing closing mechanism is provided with an upper railing 16 and a lower railing 7, one end of the upper railing 16 is installed with a vertical rod IV 17 through an upper railing motor 15, one end of the lower railing 7 is installed with a vertical rod I8 through a lower railing motor 6, and the railing motors 15 and 6 rotate under command control, so that the upper railing 16 and the lower railing 7 can be placed flat or erect (as shown in fig. 2).

The platform lifting system is matched with an electric control box (main control box), and an electric control switch, an alternating current contactor, a relay, a PLC programmable controller or a singlechip, a control circuit board, a motor controller and the like are arranged in the electric control box. The operation panel and the key panel 105 are connected to an electrical control box. Under the control of a PLC (programmable logic controller) or a singlechip, the normal operation of a platform lifting system is ensured.

Examples

The present invention relates to a platform lifting system.

As shown in figure 1, the system of the invention realizes the up-and-down conveying function on the common stair passageway by using the closed fence type platform, solves the problem of going upstairs and downstairs of multi-person and sitting wheelchair, provides a convenient technical support for the travel of inconvenient or disabled people, and has good safety guarantee performance.

As shown in fig. 1, two sets of guide rails 2 are installed on a corridor, and a load-bearing platform 1 walks on the guide rails 2. The guardrail is respectively arranged at the upper end and the lower end of the corridor to enclose, so that the safety of the system in operation is ensured, an upper guardrail motor 15, an upper guardrail 16, a fourth upright pole 17 and a fifth upright pole 18 are arranged at the upper end, and a lower guardrail motor 6, a lower guardrail 7, a first upright pole 8, a second upright pole 9 and a transverse baffle rod 10 are arranged at the lower end. The upper rail 16 can be erected and laid flat under the drive of the upper rail motor 15, and the lower rail 7 can be erected and laid flat under the drive of the lower rail motor 6 as well to open or close the stairway passageway.

A lower travel switch 12 and a middle travel switch 13 are arranged on the ground at the lower end, and an upper travel switch 14 is arranged at the upper end of the guide rail.

The lower travel switch 12 is used for controlling the platform to travel to an end position; the middle position travel switch 13 is positioned at the tail end of the guide rail and used for controlling the switching work of the rear driving motor unit and the telescopic motor unit of the platform; the upper travel switch 14 is used for controlling the carrying platform 1 to travel to the highest end position and stop.

A main control box 3 is arranged on the wall surface, and a power supply, a control module and the like are arranged inside the main control box. The lower end wall surface is provided with a lower end panel 4 for operation and use when people ride below. An upper end panel 5 is installed on the upper end wall surface and is used for being operated when people ride on the upper end wall surface.

As shown in fig. 2, after the platform carrier is completed, if a waiting for a certain time has no riding instruction, the carrying platform 1 will automatically run to the lower end for standby, and the lower rail 7, the upper rail 16, the rear rail 101, the front rail 102, the rear turning plate 103 and the front turning plate 104 are opened during standby, so that the stair passageway is unobstructed, and the original conventional passing function is maintained.

In fig. 3, the construction of the platform is shown in detail. The load-bearing platform 1 comprises an upper fence frame body and a lower driving motor.

The carrying platform 1 comprises a bottom frame 118, a bottom plate 120, a rear rail 101, a front rail 102, a left rail 106, a left side plate 107, a right side plate 108 (shown in fig. 1 and not shown in fig. 2), a first front upright 109, a second front upright 110, a right rail 111, a first rear upright 112 and a second rear upright 113. These pole setting, horizontal bar, curb plate and railing have constituted confined rail, prevent that passenger from taking place to fall when system's device operates, ensure the security of system.

The front turning plate 104 and the rear turning plate 103 can be turned up and stand up during operation, and play a role of enclosing. When in the upper or lower position, the two flaps can be opened and put down, and the edges are attached to the front and rear ground, so that people or wheelchairs can go in and out (shown in fig. 10 and 13).

A precursor motor assembly 119 is mounted to the underside of the base frame 118, with the gears on the motor assembly engaging the rack guide.

The rear upright post 112 and the rear upright post 113 are internally provided with long holes, and a telescopic rod assembly 116 is arranged inside the long holes. A first telescopic motor unit 114 and a second telescopic motor unit 115 are installed on the side surfaces of the vertical rods. The telescopic rod assembly 116 is capable of up and down telescoping under the drive of the telescopic motor unit. A rear drive motor unit 117 is mounted below the telescopic rod assembly 116, and gears in the motor unit can be meshed with the rack guide rail for transmission.

One end of the rear rail 101 and the front rail 102 are mounted to the upright by a rail motor 122, and the rail motor 122 is rotated under command control so that the rear rail 101 and the front rail 102 can be laid flat or upright (as shown in fig. 2).

In fig. 4, a series of feet 203 are mounted and secured to the ground or a step by ground cement bolts 205. The rack rail 201 is secured to a series of feet 203 by rack mounting screws 204. The rack housing 202 is mounted to the rack rail 201 by side rack housing mounting screws 206. When the gear rolls on the rack guide rail 201, the outside is protected by the rack cover 202, so that the gear and the rack are prevented from being exposed to fall ash or being clamped with sundries.

In fig. 5, the rack housing 202 is shown hidden to facilitate the representation of the relationship of the pinion and rack guide 201. In the present system, all the drive gears connected to the motor are identical, as is gear 121.

The first telescopic motor unit 114 and the second telescopic motor unit 115 are identical in construction. For example, the first telescopic motor unit 114 comprises a speed reducer 114-1 and a motor 114-2, and the output of the speed reducer 114-1 is fixedly connected with a gear. The output of the second telescopic motor unit 115 is fixedly connected with a gear 121, the gear 121 is meshed with a telescopic rack 116-1 in the telescopic rod assembly 116, the motor rotates to drive the gear 121 to drive the telescopic rod assembly 116 to move up and down, the telescopic rod assembly seems to stretch out and draw back at the bottom of the platform, and the platform is ensured to be always kept in a horizontal state through the stretching action.

In fig. 6, rollers 116-3 "are mounted at the bottom of the retraction lever assembly 116. During the downward movement of the load platform 1, when the gear in the rear drive motor group 117 below the telescopic link assembly 116 moves away from the rack rail 201, the roller 116-3 comes into contact with the ground, acting as a support platform, and during the platform operation at this time, the roller rolls on the ground (as shown in the state of fig. 7).

As shown in fig. 7, when the carrying platform 1 is running, the roller 116-3 at the bottom of the telescopic rod assembly 116 is grounded, and when the ground rolls, the whole carrying platform 1 is driven by the front motor 119 to move down or up on the rack track 201, and fig. 7 shows that the position is up. The rack rail 201 and the ground have an included angle a, the linear speed at which the gear of the precursor motor 119 moves on the rack rail is V1, and the linear speed at which the telescopic rod assembly 116 extends downward under the drive of the telescopic motor group is V2. In order to ensure the horizontal attitude of the platform, V1, V2 and angle a must satisfy the following relationship:

V2 = V1 * Sin(A)，

in the system, the speeds of the telescopic motor and the driving motor are controlled according to the relation of the formula, so that the level of the attitude of the platform is realized.

As shown in fig. 8, a lower travel switch 12 is arranged on the ground at the lower end, when the carrying platform 1 descends to the lowest end position, the rear upright 113 just contacts the lower travel switch 12, the telescopic motor set and the precursor motor are immediately turned off after the system receives the signal of the switch, and the carrying platform 1 can accurately stop at the corresponding position of the lower travel switch 12, as shown in fig. 8. This position is the ground end position of the support platform 1 in the lower position.

Fig. 9 shows the inflection point positions of the rear drive and the roller change, with the neutral travel switch 13 at the end of the rail. From the ascending state shown in fig. 7, the platform continues to ascend, that is, the state shown in fig. 9 can be reached, and as the roller 116-3 at the bottom of the telescopic rod assembly rolls forwards and moves forwards, the gear of the rear drive motor group leans against the rack guide rail, and in this state, the middle position travel switch 13 is set, so that the middle position travel switch is contacted with the telescopic rod assembly 116 at the same time, and a corresponding switch signal can be sent. The switch signal can enable the system to send out an instruction of starting the work of the rear drive motor group, simultaneously, the telescopic motor is closed, the telescopic rod is stopped from extending outwards, and the bearing platform 1 is driven by the four drive motors to run downwards.

Conversely, when the telescopic rod assembly 116 contacts the middle position travel switch 13 in the descending process of the carrying platform 1 from the high position, the gear of the rear drive motor is about to leave the rack guide rail, at this time, after the system receives the trigger signal of the middle position travel switch 13, the rear drive motor is immediately turned off, and the telescopic motor group is turned on to retract the telescopic rod assembly 116 inwards. At this time, the lower end of the telescopic rod assembly is supported on the ground by a roller wheel in a rolling way, and the bearing platform 1 continues to descend under the drive of the two precursor motors until reaching the lower ground tail end position.

In fig. 1, an upper travel switch 14 is disposed at the upper end of the guide rail, and when the load-bearing platform 1 moves up to the highest position, the front upright post two 110 contacts the switch to generate a trigger signal, so that the system immediately turns off the four driving motors to stop the load-bearing platform 1 from moving up.

The operation panel comprises keys, a key lock catch and a card swiping area. The keys include up, down, stop, etc. In order to set the use authority, the panel is provided with a key lock, a fingerprint identifier, a password keyboard, an induction card reader and other parts, and a user selects the parts.

The components of the system are connected by internal cables for transmitting control signals and power supply.

The working operation flow of the platform lifting system comprises the following steps:

1. platform lifting system standby

After the system is carried out, if no riding instruction is received after waiting for a set period of time, under the control of a PLC (programmable logic controller) or a singlechip, the system closes all four rails, namely an upper rail 16, a lower rail 7, a rear rail 101 and a front rail 102, erects a front turning plate 104 and a rear turning plate 103, automatically descends to the tail end position of the ground, opens the four rails, namely the upper rail 16, the lower rail 7, the rear rail 101 and the front rail 102, and puts down the front turning plate 104 and the rear turning plate 103 so as to ensure that the corridor is smooth and keep the passing function of the original corridor;

2. the bearing platform 1 goes upward

When an occupant needs to ride up the lower end of the corridor, the occupant presses the up button on the lower end panel 4, at which point the system will lower the upper rail 16 and the front rail 102, raising the front flap 104. And enters an uplink waiting state as shown in fig. 10.

When the occupant has all entered the load-bearing platform 1, the occupant presses the up button on the key panel 105 on the load-bearing platform 1, the system will lower down the lower rail 7, the rear rail 101 and erect the rear panel 103. At this time, the load-bearing platform 1 protects the passengers around by using the fence, and prevents falling. As shown in fig. 11.

The carrying platform 1 starts to advance.

The load carrying platform 1 reaches the upper end position as shown in fig. 12.

The front turning plate 104 is put down by the carrying platform 1, the upper railing 16 and the front railing 102 are opened, as shown in fig. 13, and at the moment, passengers can walk out of the carrying platform 1 to finish the ascending task.

The system erects the front flap 104, lowers the upper rail 16 and the front rail 102, and waits for a command.

If the system waits for a set period of time and does not receive a riding instruction, the bearing platform 1 automatically descends to the tail end position of the ground, opens four rails, namely an upper rail (16), a lower rail (7), a rear rail (101) and a front rail (102), puts down a front turning plate and a rear turning plate, and enters a state of opening a corridor for standby;

3. the bearing platform 1 descends

When the system is in a standby state and a passenger needs to ride down on the upper end of the corridor, the passenger presses down a down button on the upper end panel 5, the system puts down all four rails, namely the upper rail 16, the lower rail 7, the rear rail 101 and the front rail 102, and erects the front turning plate 104 and the rear turning plate 103, as shown in fig. 11.

The load platform 1 automatically moves up to the upper position and the system lowers the front flap 104, opening the upper rail 16 and the front rail 102, as shown in fig. 13, waiting for the occupant to enter.

When the occupant has all entered the load-bearing platform 1, the occupant presses down on the down button on the key panel 105 on the load-bearing platform 1, the system will lower the upper rail 16 and the front rail 102, raising the front flap 104. At this time, the load-bearing platform 1 protects the passengers around by using the rail, prevents falling, and prepares for descending. As shown in fig. 12.

The carrying platform 1 descends.

The load carrying platform 1 reaches the ground end position as shown in fig. 11.

The carrying platform 1 is put down to turn the plate 103 back, and the lower railing 7 and the back railing 101 are opened, as shown in fig. 10, so that passengers can walk out of the platform at this time, and the descending task is completed.

If the system waits for a set period of time and does not receive a riding instruction, under the control of a PLC (programmable logic controller) or a singlechip, the carrying platform 1 automatically opens four rails, namely an upper rail 16, a lower rail 7, a rear rail 101 and a front rail 102, and puts down a front turning plate and a rear turning plate to enter a state of opening a corridor for standby.

Claims

1. The platform lifting system is characterized by comprising a rack guide rail (2), a bearing platform (1), a bearing platform driving device, a rear end telescopic rod mechanism, an upper railing closing mechanism, a lower railing closing mechanism, a travel switch and an operation panel;

two groups of rack guide rails (2) are additionally arranged on the corridor and are directly arranged on the stair step surface in a landing way through foot legs;

the bottom of the bearing platform (1) is provided with a bottom frame (118) and a bottom plate (120), and front rails (102), rear rails (101), a front turning plate (104), a rear turning plate (103), a left cross bar (106), a right cross bar (111), a left side plate (107) and a right side plate (108) are arranged around the bearing platform to form a fence structure with a closed periphery;

the bearing platform driving device comprises two precursor motor groups (119) and two rear drive motor groups (117), wherein the precursor motor groups (119) and the rear drive motor groups (117) are arranged at the bottom of the bearing platform (1), gears are arranged on the output shafts of the two precursor motor groups (119) and the two rear drive motor groups (117), and the gears are meshed with each other by the four gears to travel on a rack guide rail (201) to form four motor-driven layouts;

the rear end telescopic rod mechanism comprises a rear vertical rod I (112), a rear vertical rod II (113), two telescopic rod assemblies (116), a telescopic motor I (114) and a telescopic motor II (115); the rear upright post I (112) and the rear upright post II (113) are internally provided with long holes, and a telescopic rod assembly (116) is arranged in the rear upright post I and the rear upright post II;

a first telescopic motor unit (114) is arranged on the side face of the first rear upright rod (112), a gear is arranged on an output shaft of the first telescopic motor unit (114) and meshed with a rack (116-2) on a telescopic rod (116-1), a second telescopic motor unit (115) is arranged on the side face of the second rear upright rod (113), a gear is arranged on an output shaft of the second telescopic motor unit (115) and meshed with a rack (116-2) on the telescopic rod (116-1), and the telescopic rod assembly (116) can stretch up and down under the driving of the telescopic motor unit;

the upper and lower railing closing mechanism is provided with an upper railing (16) and a lower railing (7), one end of the upper railing (16) is installed with a vertical rod IV (17) through an upper railing motor (15), one end of the lower railing (7) is installed with a vertical rod I (8) through a lower railing motor (6), and the railing motor rotates under the control of an instruction, so that the upper railing (16) and the lower railing (7) can be leveled or erected.

2. The platform lifting system according to claim 1, wherein an upper railing (16) and a lower railing (7) are respectively arranged at the upper end and the lower end of the corridor, and can be opened or put down under the drive of a railing motor, and the corridor is closed to pass when the corridor is put down, so that the safety of the platform operation is ensured; when the elevator is opened, the passage of the stairs is recovered, and the original conventional passage function is maintained.

3. A platform lifting system according to claim 1, characterized in that the load-bearing platform (1) is further provided with a front and a rear rail closing mechanism, which has a rear rail (101) and a front rail (102), one end of which is mounted with the upright by a rail motor (122), the rail motor (122) being rotated under command control so that the rear rail (101) and the front rail (102) can be laid flat or upright.

4. A platform lifting system according to claim 1, characterized in that the telescopic rod assembly (116) has a telescopic rod (116-1), the telescopic rod (116-1) is provided with a rack (116-2), and the bottom of the telescopic rod assembly (116) is provided with a roller (116-3).

5. A platform lifting system according to claim 1, characterized in that a rear drive motor group (117) is arranged below the two telescopic rod assemblies (116), and the output shaft of the rear drive motor group (117) is provided with a gear which can be meshed with the rack track (2) for transmission.

6. A platform lifting system according to claim 1, characterized in that the platform type corridor elevator is provided with a travel switch at three places, a lower travel switch (12) is installed on the ground at the lower end, an upper travel switch (14) is installed at the upper end position of a guide rail, and a middle travel switch (13) is installed at the lower end position of the guide rail;

7. A platform lifting system according to claim 1, characterized in that the platform type corridor elevator is provided with an operation panel at three places, a lower end panel (4) is installed on the lower end wall surface of the corridor for operation when people are riding below, an upper end panel (5) is installed on the upper end wall surface of the corridor for operation when people are riding above, and the operation panel is connected with an electric control box.

8. A platform lifting system according to claim 1, characterized in that a key panel (105) is provided on the mobile load-bearing platform for pressing the corresponding button in accordance with the up-down performance requirement after the passenger enters the platform.

9. A platform lifting system according to claim 1, characterized in that when the bearing platform (1) is running, the roller (116-3) at the bottom of the telescopic rod assembly (116) is grounded, and when the ground rolls, the whole bearing platform (1) is driven to move downwards or upwards on the rack track (201) by the front drive motor (119) gear; an included angle A exists between the rack track (201) and the ground, the linear speed of the gear of the precursor motor (119) moving on the rack track is V1, the linear speed of the telescopic rod assembly (116) extending downwards under the drive of the telescopic motor unit is V2, and in order to ensure the horizontal posture of the platform, the following relations of V1, V2 and angle A must be satisfied:

V2 = V1 * Sin(A)，

10. The workflow of claim 1 wherein the steps are as follows:

(1) Platform lifting system standby

After the system is carried out, if no riding instruction is received after waiting for a set time period, under the control of a PLC (programmable logic controller) or a singlechip, the system closes all four rails, namely an upper rail (16), a lower rail (7), a rear rail (101) and a front rail (102), a front turning plate (104) and a rear turning plate (103) are erected, automatically descends to the tail end position of the ground, then the four rails are opened, the upper rail (16), the lower rail (7), the rear rail (101) and the front rail (102), and the front turning plate (104) and the rear turning plate (103) are put down, so that the corridor is smooth, and the passing function of the original corridor is kept;

(2) The bearing platform (1) goes upward

When a passenger needs to ride up on the lower end of the corridor, the passenger presses an up button on the lower end panel (4), and at the moment, the system puts down the upper railing (16) and the front railing (102) and lifts the front turning plate (104). Entering an uplink waiting state;

when all passengers enter the bearing platform (1), the passengers press an uplink button on a key panel (105) on the bearing platform (1), the system puts down a lower railing (7) and a rear railing (101), and erects a rear turnover plate (103), and at the moment, the passengers are protected around by using a fence for the bearing platform, so that falling is prevented;

the bearing platform (1) starts to move forward, the bearing platform (1) reaches the upper end position, the bearing platform (1) puts down the front turning plate (104), the upper railing (16) and the front railing (102) are opened, and at the moment, passengers can walk out of the bearing platform to finish the ascending task;

the system erects a front turning plate (104), places an upper railing (16) and a front railing (102) and waits for an instruction; if the system waits for a set time period and does not receive a riding instruction, the bearing platform (1) automatically descends to the tail end position of the ground, opens four rails, and puts down a front turning plate and a rear turning plate to enter a state of opening a corridor for standby, wherein the upper rail (16), the lower rail (7), the rear rail (101) and the front rail (102);

(3) The bearing platform (1) descends

When a passenger needs to ride down on the upper end of the corridor, the passenger presses down a down button on the upper end panel 5, and the system puts down all four rails, namely an upper rail 16, a lower rail 7, a rear rail 101 and a front rail 102, and erects a front turning plate 104 and a rear turning plate 103;

the bearing platform (1) automatically ascends to the upper end position, the system puts down the front turning plate (104), opens the upper railing (16) and the front railing (102) and waits for passengers to enter;

when all passengers enter the bearing platform (1), the passengers press down buttons on a key panel (105) on the bearing platform (1), the system puts down the upper railing (16) and the front railing (102) and erects the front turning plate (104), and at the moment, the bearing platform (1) protects the passengers around by using the fences, prevents falling and prepares for descending;

the bearing platform (1) descends, the bearing platform (1) reaches the tail end position of the ground, the bearing platform (1) puts down the rear turning plate (103), the lower railing (7) and the rear railing (101) are opened, and at the moment, passengers can walk out of the platform to finish the descending task;

if the system waits for a set period of time and does not receive a riding instruction, under the control of a PLC (programmable logic controller) or a singlechip, the carrying platform (1) automatically opens four rails, namely an upper rail 16, a lower rail 7, a rear rail 101 and a front rail 102, and puts down a front turning plate and a rear turning plate to enter a state of opening a corridor for standby.