CN214240791U

CN214240791U - Telescopic pedal device

Info

Publication number: CN214240791U
Application number: CN202022424328.XU
Authority: CN
Inventors: 朱其豹; 马永根; 胡聪聪; 陈辉; 顾萍萍; 王雨; 顾自立
Original assignee: Nanjing Kangni Mechanical and Electrical Co Ltd
Current assignee: Nanjing Kangni Mechanical and Electrical Co Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-09-21
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a flexible footboard device, footboard frame top is provided with the threshold, and the apron is installed at footboard frame top, is provided with driving motor in the footboard frame, and driving motor drives the inside activity footboard of telescoping device and stretches out and draws back, is provided with the locking in the footboard frame and keeps apart the subassembly, and the locking is kept apart the hasp looks locking on subassembly and the activity footboard. The synchronous belt or chain tensioning device and the front bearing guide component are arranged below the movable pedal, the structure is compact, and the occupied space is small; after the pedal is retracted, the pedal is locked by the motor brake and the mechanical lock hook, so that the pedal is safer and more reliable; the pedal isolation lock can perform isolation operation only after the pedal is retracted, and has the function of preventing misoperation; the pedal isolation and unlocking are operated by a steel wire rope, so that a lock cylinder operating device is prevented from being arranged on the upper cover plate; the pedal motor unlocking assembly adopts a rotatable bracket for unlocking; the pedal cover plate has good sealing performance, and is convenient to overhaul and maintain the inside of the pedal.

Description

Telescopic pedal device

Technical Field

The utility model relates to a flexible footboard device belongs to vehicle device design technical field.

Background

When a rail transit train is stopped at a platform, in order to compensate for a gap or a height difference between the train and the platform, a pedal is generally installed in a train door opening area or below the train, and the compensation width of the pedal is generally the same as the passing width of a door system. When the footboard is installed in regional floor face below in automobile body gate, it is little to require footboard installation space, and the apron that is located the footboard top not only requires to bear corresponding load requirement, still need as the access window, conveniently opens, is convenient for maintain the footboard, requires the apron to have good sealing function simultaneously.

The existing pedal upper cover plate is complex in mounting structure and poor in sealing effect, and is not convenient to open to maintain the pedal. In addition, the existing pedal unlocking and isolation usually adopt a lock cylinder structure installed inside the pedal, the surface of the cover plate needs to be provided with a lock cylinder operating hole, the lock cylinder is easy to accumulate dust and seep water, the lock cylinder is blocked, and the cover plate is inconvenient to use and maintain and the appearance of the cover plate is influenced. In addition, limited by the position of the lock cylinder, the cover plate is inconvenient to install and adjust. In addition, the existing pedal is usually locked by a motor brake, the locking mode is single, and when the brake fails or a transmission part generates loosening failure, the pedal has the risk of being thrown out after the vehicle runs.

Disclosure of Invention

The purpose is as follows: in order to overcome and to have the locking of motor brake among the prior art, the locking mode is single to but maintainability is poor not enough, the utility model provides a flexible footboard device is in order to improve current locking, isolation reliability, leakproofness, maintainability that are used for the track traffic train footboard to give corresponding unlocking structure and unblock mode.

The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a technical scheme does:

a retractable pedal apparatus comprising: the pedal device comprises a doorsill and a pedal frame, wherein the doorsill is arranged above the pedal frame, a cover plate is arranged at the top of the pedal frame, a driving motor is arranged in the pedal frame, the driving motor drives a movable pedal at the tail end of a telescopic device to stretch, a locking isolation assembly is arranged in the pedal frame, and the locking isolation assembly is locked with a lock catch on the movable pedal.

Preferably, the locking isolation assembly comprises a mechanical lock hook and an isolation lock hook, when the mechanical lock hook is in a locking state, the mechanical lock hook is clamped with the lock catch, the rotating direction of the mechanical lock hook which is unlocked from the lock catch after rotating is defined as a first rotating direction, the rotating direction opposite to the first rotating direction is defined as a second rotating direction, a torsion spring is arranged on the mechanical lock hook, a rotating shaft is sleeved in the torsion spring, the mechanical lock hook keeps rotating in the first rotating direction under the action of the torsion spring, the lower edge of the mechanical lock hook is contacted with one end of a stop member, a flange is arranged on the mechanical lock hook, a torsion spring is arranged in the stop member, the rotating shaft is sleeved in the torsion spring, an unlocking turntable is arranged at the top of the rotating shaft, the stop member keeps rotating in the second rotating direction under the action of the torsion spring, an unlocking device is arranged at the other end of the stop member, a telescopic hook is arranged on the unlocking device, and the unlocking turntable is connected with one end of a first unlocking steel rope, the first unlocking steel rope drives the stop piece to rotate in a first rotating direction, the unlocking turntable is also connected with one end of a second unlocking steel rope, the other end of the second unlocking steel rope is connected with the free end of an unlocking support, a torsion spring is arranged at the top end of the unlocking support, a rotating shaft is arranged in the torsion spring, the unlocking support keeps rotating in a second rotating direction under the action of the torsion spring, the second unlocking steel rope drives the unlocking support to rotate in the first rotating direction along with the rotating unlocking turntable, and the unlocking support is contacted with a motor brake handle;

the isolation lock hook is characterized in that a torsion spring is arranged in the isolation lock hook, a rotating shaft is sleeved in the torsion spring, an isolation rotary table is arranged at the top of the rotating shaft, the isolation lock hook keeps the second rotating direction to rotate under the action of the torsion spring, the isolation rotary table is connected with one end of an isolation steel rope, the isolation steel rope drives the isolation lock hook to rotate in the first rotating direction, and the isolation steel rope drives the isolation lock hook to rotate in the first rotating direction and to be clamped with a mechanical lock hook in a locking state in an isolation state.

As a preferred scheme, the lock catch comprises a first lock catch and a second lock catch, the locking isolation assembly comprises a mechanical lock hook and an isolation lock hook, when the mechanical lock hook is in a locking state, the mechanical lock hook is clamped with the first lock catch, the rotating direction of the mechanical lock hook which is unlocked with the first lock catch after rotating is defined as a first rotating direction, the rotating direction opposite to the first rotating direction is defined as a second rotating direction, a torsion spring is arranged in the mechanical lock hook, a rotating shaft is sleeved on the torsion spring, the mechanical lock hook keeps the first rotating direction to rotate under the action of the torsion spring, the lower edge of the mechanical lock hook is contacted with one end of a stop piece, a flange is arranged on the mechanical lock hook, a torsion spring is arranged in the stop piece, the rotating shaft is sleeved in the torsion spring, an unlocking rotary disc is arranged at the top of the rotating shaft, the stop piece keeps the second rotating direction to rotate under the action of the torsion spring, an unlocking device is arranged at the other end of the stop piece, and a telescopic hook is arranged on the unlocking device, the unlocking turntable is connected with one end of a first unlocking steel rope, the first unlocking steel rope drives the stop piece to rotate in a first rotating direction, the unlocking turntable is also connected with one end of a second unlocking steel rope, the other end of the second unlocking steel rope is connected with the free end of an unlocking support, a torsion spring is arranged at the top end of the unlocking support, a rotating shaft is arranged in the torsion spring, the unlocking support keeps rotating in the second rotating direction under the action of the torsion spring, the second unlocking steel rope drives the unlocking support to rotate in the first rotating direction along with the rotating unlocking turntable, and the unlocking support is contacted with a motor brake handle;

the isolation lock hook is internally provided with a torsion spring, a rotating shaft is sleeved in the torsion spring, an isolation rotary table is arranged at the top of the rotating shaft, the isolation lock hook keeps the second rotating direction to rotate under the action of the torsion spring, the isolation rotary table is connected with one end of an isolation steel rope, the isolation steel rope drives the isolation lock hook to rotate in the first rotating direction, and in the isolation state, the isolation steel rope drives the isolation lock hook to rotate in the first rotating direction and is connected with a second lock catch in a locking state in a clamping mode.

According to the preferable scheme, the mechanical lock hook further comprises a limiting groove and a first limiting element, the mechanical lock hook is provided with the limiting groove, the isolation lock hook is provided with the first limiting element, the first limiting element rotates synchronously along with the isolation lock hook, and when the mechanical lock hook is in a locking state, the free end of the first limiting element rotates along the limiting groove until the mechanical lock hook is clamped with the isolation lock hook.

As the preferred scheme, still include the spacing component of second, keep apart the latch hook and still include the second flange, the spacing component of second is provided with the torsional spring, has cup jointed the pivot in the torsional spring, and the spacing component of second is rotatory at the first direction of rotation under the effect of torsional spring, and spacing component of second one end and the second flange phase joint on the isolation latch hook that is in initial condition, the spacing component of second rotation direction of promotion after the second hasp is retrieved is rotatory, and the spacing component of second breaks away from with the second flange of isolation latch hook mutually.

As an optimal scheme, displacement sensors are arranged on one sides of the unlocking support, the mechanical lock hook and the isolation lock hook, and when the unlocking support starts the motor to brake the handle, the mechanical lock hook and the isolation lock hook are locked and isolated, the displacement sensors are triggered.

Preferably, a buffer is arranged in the pedal frame.

The pedal frame comprises a pedal frame, a pedal plate, a cover plate, a left side pressing strip, a right side pressing strip and a rear pressing strip, wherein the pedal frame is provided with a left side pressing strip, a right side pressing strip and a rear pressing strip, the left side pressing strip, the right side pressing strip and the rear pressing strip are respectively arranged at the left part, the right part and the rear part above the pedal frame, the front part of the cover plate is lapped on steps at the rear part of the pedal plate, the left side, the right side and the rear side of the cover plate are respectively lapped on steps at the upper inner sides of the left side pressing strip, the right side pressing strip and the rear side pressing strip, and the edges of the steps of the pedal plate and the pressing strips are respectively provided with rubber sealing strips.

Preferably, the cover plate is connected with a cover plate support inside the pedal frame through a fastening element, and a torsion spring for jacking the cover plate is arranged below the cover plate support.

As the preferred scheme, the telescoping device includes the transmission shaft drive motor passes through gear or band pulley drive transmission shaft and rotates, and the hold-in range is installed at the transmission shaft both ends, and the hold-in range other end is installed and is served in overspeed device tensioner, and the grip block on the connecting portion of activity footboard both sides is connected with the hold-in range, and the overspeed device tensioner other end is installed and is born the weight of the direction subassembly for support and guide the inside of the connecting portion of activity footboard both sides.

According to the preferable scheme, the inner side of the bearing guide assembly is provided with a plurality of bearing wheels and transverse supporting wheels, the bearing wheels support the inner parts of the connecting parts at two sides of the movable pedal when the front part of the movable pedal is stressed vertically, and the transverse supporting rollers are contacted with the inner side surfaces of the connecting parts at two sides of the movable pedal to guide the movable pedal.

As a preferred scheme, a plurality of bearing rollers and height adjusting rollers are mounted on one side of the connecting part on two sides of the movable pedal, and transverse supporting rollers are mounted on the other side of the connecting part on two sides of the movable pedal, and the bearing rollers roll in C-shaped guide rails on two sides of a pedal frame; the height adjusting roller also rolls in the C-shaped guide rail and is used for compensating the gap between the bearing roller and the C-shaped guide rail; the transverse supporting rollers are in contact with the inner side of the pedal frame and can roll along the side surface of the pedal frame, so that the rear part of the movable pedal is prevented from shaking left and right.

Has the advantages that: the utility model provides a telescopic pedal device, which is driven by a motor, uses a synchronous belt or a chain for transmission, and the synchronous belt or the chain tensioning device and a front bearing guide component are arranged below a movable pedal, so that the structure is compact and the occupied space is small; after the pedal is retracted, the pedal is locked by the motor brake and the mechanical lock hook, so that the pedal is safer and more reliable; the pedal isolation lock can perform isolation operation only after the pedal is retracted, isolation is avoided under the condition that the pedal is opened, and the pedal isolation lock has the function of preventing misoperation; the pedal isolation and unlocking are operated by a steel wire rope, so that the influence on the appearance and the sealing of the cover plate caused by the arrangement of a lock cylinder operating device on the upper cover plate is avoided; the pedal motor unlocking assembly adopts the rotatable bracket for unlocking, the unlocking force is small, the structure is simple, and the operation of the steel wire rope is convenient; in addition, the pedal cover plate is simple in structure, good in sealing performance, convenient to install and disassemble, large in opening area and convenient to overhaul and maintain the inside of the pedal.

Drawings

Fig. 1 is an assembled view showing a retracted state of a pedal of a retractable pedal device according to the present invention.

FIG. 2 is a partial schematic view of the connection of the right side molding and the rear molding.

Fig. 3 is a schematic view of the cover plate fixing and bouncing structure.

Fig. 4 is a schematic view of the structure of the movable pedal driving motor.

Fig. 5 is a schematic structural view of the movable pedal retracting mechanism.

Fig. 6 is an exploded view of the movable pedal retraction mechanism.

FIG. 7 is a schematic view showing the state of the locking and isolating members when the movable step is extended according to embodiment 1.

FIG. 8 is a schematic view showing the locking and isolating assembly of embodiment 1 when the movable pedal is retracted.

Fig. 9 is a schematic view of the mechanical latch hook, isolation latch hook, and stop.

Fig. 10 is a schematic structural view of a brake handle of a manual starting motor of the driving motor.

FIG. 11 is a schematic view showing the locking and isolating members of embodiment 2 when the movable step is retracted.

Fig. 12 is a structural schematic view of a mechanical latch hook, an isolation latch hook and a stopper of the embodiment 2.

FIG. 13 is a schematic view of the structure including a stopper groove and a stopper member in embodiment 1.

Fig. 14 is a schematic structural view including a second stopper element in embodiment 2.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

As shown in fig. 1, in the retractable pedal device of the present invention, a threshold 2 is installed at the front part above a pedal frame 1, a left-side bead 4, a right-side bead 5 and a rear-side bead 6 are respectively installed at the left, right and rear parts above the pedal frame, the left-side bead 4 and the right-side bead 5 can be adjusted left and right, and the rear-side bead 6 can be adjusted front and rear.

As shown in fig. 2, the cover plate 3 is installed on the top of the pedal frame 1, the front part of the cover plate 3 is lapped on the step 101 at the rear part of the doorsill 2, the left side, the right side and the rear side of the cover plate 3 are respectively lapped on the steps 101 at the inner sides of the left side pressing strip 4, the right side pressing strip 5 and the rear side pressing strip 6, the edges of the doorsill 2 and the steps 101 of the pressing strips are respectively provided with a rubber sealing strip 7, and the gap between the cover plate 3 and the pressing strips can be eliminated by adjusting the installation position of the pressing strips and the top surface of the pedal frame when the cover plate 3 is installed.

As shown in fig. 3, after the cover plate 3 is connected with the cover plate support 9 inside the pedal frame 1 through the fastening element 8, the rubber sealing strip 7 around the bottom of the cover plate 3 is compressed to perform a sealing function. After the cover plate 3 is disassembled and assembled with the fastening element 8, the torsion spring 10 arranged below the cover plate support 9 can bounce the rear part of the cover plate 3, so that the cover plate is convenient to disassemble.

As shown in fig. 4, the driving motor 11 is installed inside the pedal frame 1, and when the driving motor 11 is operated, the driving shaft 1301 of the driving assembly 13 is driven to rotate through the gear or the pulley 12.

As shown in fig. 5-6, a synchronous belt 1302 is installed at two ends of a transmission shaft 1301, the other end of the synchronous belt is installed at one end of a tensioning device 14 and used for fixing the other end of the synchronous belt, a clamping plate 1501 on a connecting portion at two sides of a movable pedal 15 is connected with the synchronous belt 1302, a transmission assembly 13 is driven by a driving motor 11 to drive the synchronous belt 1302 to rotate in a reciprocating manner, and the clamping plate 1501 and the synchronous belt 1302 move synchronously to drive the movable pedal 15 to achieve telescopic movement.

The other end of the tensioning device 14 is provided with a bearing guide component 16 for supporting and guiding the inside of the connecting parts at two sides of the movable pedal 15, the inner side of the bearing guide component 16 is provided with a plurality of bearing wheels 1601 and transverse supporting wheels 1602, the bearing wheels 1601 support the inside of the connecting parts at two sides of the movable pedal 15 when the front part of the movable pedal 15 is stressed vertically, the transverse supporting wheels 1602 contact with the inside side surfaces of the connecting parts at two sides of the movable pedal 15, the guide effect is realized on the movable pedal 15, and the front left-right shaking of the movable pedal 15 is avoided.

A plurality of bearing rollers 1502 and height adjusting rollers 1503 are arranged on one side of the connecting part on two sides of the movable pedal 15, and a transverse supporting roller 1504 is arranged on the other side of the connecting part, and the bearing rollers 1502 roll in the C-shaped guide rails 17 on two sides of the pedal frame; the height adjustment roller 1503 also rolls in the C-shaped guide rail 17 and can be height adjusted to compensate for the gap between the carrier roller 1502 and the C-shaped guide rail 17. The lateral support roller 1504 can be adjusted left and right, contacts the inner side of the pedal frame 1, and can roll along the side of the pedal frame 1, preventing the rear portion of the movable pedal 15 from shaking left and right.

Example 1

As shown in fig. 7 and 8, the movable pedal adopts an integrated mechanical lock locking isolation structure, a lock buckle 1505 is installed at the rear end of the movable pedal 15, and a mechanical lock locking isolation assembly 18 is installed in the pedal frame 1, as shown in fig. 9, the locking isolation assembly 18 includes a mechanical lock hook 1801 and an isolation lock hook 1805, a torsion spring is arranged on the mechanical lock hook 1801, a rotating shaft is sleeved in the torsion spring, a rotating direction in which the mechanical lock hook 1801 is unlocked from the lock buckle 1505 after rotating is defined as a first rotating direction, and a rotating direction opposite to the first rotating direction is defined as a second rotating direction, in the present embodiment, the first rotating direction is counterclockwise rotation, the second rotating direction is clockwise rotation, the mechanical lock hook 1801 keeps counterclockwise rotation under the action of the torsion spring, and the mechanical lock hook is in an open state when the torsion spring is in a relaxed state; mechanical latch hook lower limb contacts with end fender spare 1802 one end, is provided with flange 1803 on the mechanical latch hook for end fender spare 1802 one end looks joint back mechanical latch hook is in quiescent condition with the stopper, during mechanical latch hook locking state, mechanical latch hook and hasp looks joint are provided with the torsional spring in the end fender spare 1802, and the pivot has been cup jointed in the torsional spring, and the pivot top is provided with unblock carousel 1809, and the torsional spring belongs to compression state, keeps the stopper clockwise turning, and the end fender spare other end is provided with unlocking device 1804, is provided with the telescopic drag hook on the unlocking device 1804, unblock carousel 1809 is connected with first unblock steel cable 1808 one end, and first unblock steel cable drives end fender spare anticlockwise rotation. As shown in fig. 10, the unlocking turntable 1809 is further connected to one end of a second unlocking steel rope 1810, the other end of the second unlocking steel rope 1810 is connected to the free end of the unlocking support 19, a torsion spring is disposed at the top end of the unlocking support, a rotating shaft is disposed in the torsion spring, and the second unlocking steel rope drives the unlocking support to rotate counterclockwise along with the rotating unlocking turntable. The unlocking support 1809 is in contact with the motor brake handle 1101.

Mechanical latch hook one side is provided with isolation latch hook 1805, be provided with the torsional spring in the isolation latch hook, cup jointed the pivot in the torsional spring, the pivot top is provided with isolation carousel 1807, and the torsional spring belongs to compression state, keeps isolating latch hook clockwise turning, isolation carousel 1807 is connected with isolation steel cable 1806 one end, and isolation steel cable drives and keeps isolating latch hook counter-clockwise turning, and when keeping apart steel cable initial state, it is static to overcome the torsion that isolates latch hook clockwise turning and keep isolating latch hook, and during isolation state, the mechanical latch hook looks joint of isolation latch hook counter-clockwise turning and locking state.

The operation of the mechanical lock lockout isolation assembly of the first embodiment:

the locking isolation component 18 is installed in the middle area of the rear portion of the movable pedal 15, when the movable pedal 15 is retracted, in the final stage, the lock 1505 installed at the rear portion of the movable pedal contacts with the mechanical lock hook 1801 and drives the mechanical lock hook 1801 to rotate, the mechanical lock hook slides along the upper end of the stop member, when the movable pedal rotates to a certain angle, the upper end of the stop member 1802 is matched and clamped with the flange 1803 at the rear portion of the mechanical lock hook 1801, the mechanical lock hook rotates under the action of a torsion spring in the stop member, until the mechanical lock hook and the stop member are static, the mechanical lock hook 1801 is prevented from rotating reversely, and the movable pedal 15 is limited. After the movable pedal 15 is completely retracted, the driving motor 11 is braked, and the movable pedal 15 is also locked through the transmission assembly 13. When the footboard was opened, unlocking device 1804 drive drag hook was retrieved, and the drag hook drives and ends the piece 1802 and rotate, and it is spacing to remove the joint between mechanical latch hook 1801 flange and the piece that ends, and mechanical latch hook 1801 rotates under the effect of its self torsional spring and the hasp drive, removes the locking state, and movable footboard 15 can be opened under motor drive.

When the motor driving and unlocking device cannot work, the first unlocking steel rope 1808 is pulled to drive the unlocking turntable 1809 to overcome torsion of the torsion spring to rotate anticlockwise, the unlocking turntable 1809 pulls the unlocking support at the tail end of the second unlocking steel rope 1810 to rotate anticlockwise along the top end, the motor brake handle is driven to be opened, the motor is in a free state, and the movable pedal can manually extend or retract. The unlocking support keeps rotating clockwise under the initial force of a torsion spring at the top end of the unlocking support, the unlocking support drives an unlocking turntable 1809 to rotate clockwise through a second unlocking steel rope 1810, the unlocking turntable and the unlocking turntable cooperate with a torsion spring in the stop member to keep the stop member rotating clockwise, when the top end of the stop member slides along the smooth edge of the lower part of the mechanical lock hook, the stop member is relatively static, and after the stop member passes through the flange, the top end of the stop member obtains a space to rotate until the stop member is mutually clamped and connected with the lower part of the mechanical lock hook and is static. The unlocking support is always in a state of not driving a motor brake key.

Under the open state of the movable pedal 15, the isolation locking hook 1805 is matched with the tension of the isolation steel rope 1806 to keep a static state under the action of the torsion spring, and cannot rotate for isolation. After the movable pedal 15 is retracted, the mechanical latch hook 1801 rotates in place, and the isolation steel rope is pulled to drive the isolation latch hook 1805 under the isolation turntable to rotate under the action of overcoming the torsion force of the torsion spring, so that the isolation steel rope is clamped with the mechanical latch hook, and the isolation state is completed. The movable pedal 15 cannot be opened electrically or manually after being isolated.

When the isolation state is to be released, the isolation steel rope is loosened to the initial tension, the isolation lock hook rotates clockwise under the action of the torsion spring of the isolation lock hook and is separated from the mechanical lock hook until the isolation lock hook keeps the static state.

Example 2:

as shown in fig. 11-12, the movable pedal adopts a split type mechanical lock locking isolation structure, a lock buckle 1505 and a second lock buckle 1506 are installed at the rear end of the movable pedal 15, the locking isolation component 18 is installed in the pedal frame 1, the locking isolation component 18 includes a mechanical lock hook and an isolation lock hook, a rotation direction of the mechanical lock hook 1801 which is unlocked from the lock buckle 1505 after rotating is defined as a first rotation direction, and a rotation direction opposite to the first rotation direction is defined as a second rotation direction, in the present embodiment, the first rotation direction is counterclockwise rotation, the second rotation direction is clockwise rotation, a torsion spring is arranged in the mechanical lock hook, a rotating shaft is sleeved in the torsion spring, the mechanical lock hook keeps counterclockwise rotation under the action of the torsion spring, and the mechanical lock hook is in an open state under the loosening state of the torsion spring; the mechanical latch hook lower limb contacts with only shelves piece one end, is provided with flange 1803 on the mechanical latch hook for only shelves piece 1802 one end looks joint back mechanical latch hook is in quiescent condition with the stopper, is provided with the torsional spring in the only shelves piece, has cup jointed the pivot in the torsional spring, and the pivot top is provided with the unblock carousel, and the torsional spring belongs to compression state, keeps the stopper clockwise turning, only shelves piece other end is provided with unlocking device, is provided with the telescopic drag hook on the unlocking device, the unblock carousel is connected with first unblock steel cable one end, and first unblock steel cable drives only shelves piece anticlockwise turning. The unlocking turntable is further connected with one end of a second unlocking steel rope, the other end of the second unlocking steel rope is connected with the free end of the unlocking support, and the second unlocking steel rope drives the unlocking support to rotate anticlockwise along with the rotating unlocking turntable. The unlocking support 1809 is in contact with the motor brake handle 1101.

The operation of the mechanical lock lockout isolation assembly of the second embodiment: the automatic locking and unlocking and manual locking and unlocking of the movable pedal 15 are the same as those of the first embodiment. The isolation and isolation releasing processes of the isolation locking hook are the same, except that, unlike the first embodiment, the isolation locking hook is clamped with the second lock 1506 in the isolation state.

Example 3:

as shown in fig. 13, the mechanical latch hook 1801 of the locking isolation structure of the integrated mechanical latch further includes a limiting groove 18011, and the isolation latch hook 1805 further includes a first limiting element 18051, the mechanical latch hook is provided with the limiting groove, the isolation latch hook is provided with the first limiting element, the first limiting element rotates synchronously with the isolation latch hook, and when the mechanical latch hook is in a locking state, a free end of the first limiting element rotates along the limiting groove until the mechanical latch hook is connected with the isolation latch hook in a clamping manner. The limiting groove and the first limiting element are matched in structure and used for ensuring that the mechanical lock hook and the lock catch are locked in place.

Example 4:

as shown in fig. 14, the locking and isolating structure of the split type mechanical lock further includes a second limiting element 1811, and the isolating lock hook 1805 further includes a second flange 18052, the second limiting element is provided with a torsion spring, a rotating shaft is sleeved in the torsion spring, and the second limiting element rotates counterclockwise under the action of the torsion spring. Second spacing component one end and the second flange looks joint on the isolation latch hook that is in initial condition, second hasp 1506 promotes the clockwise rotation of second spacing component after retrieving, and the second spacing component breaks away from with the second flange of isolation latch hook mutually, and the isolation latch hook does not receive the restriction of second spacing component, under the drive of isolation steel cable, with second hasp looks joint for further guarantee the isolation latch hook under the condition that the second hasp does not close target in place, isolation latch hook protection initial condition.

Example 5:

and when the unlocking support starts a motor to brake the handle, the mechanical lock hook and the isolation lock hook are locked and isolated, the displacement sensors are triggered.

Example 6:

a buffer is arranged in the pedal frame and used for buffering the closing of the movable pedal.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A retractable pedal apparatus comprising: threshold, pedal frame, its characterized in that: the pedal frame is internally provided with a locking isolation assembly, and the locking isolation assembly is locked with a lock catch on the movable pedal.

2. A retractable pedal assembly as set forth in claim 1 wherein: the locking and isolating assembly comprises a mechanical lock hook and an isolating lock hook, when the mechanical lock hook is in a locking state, the mechanical lock hook is clamped with the lock catch, the rotating direction of the mechanical lock hook which is unlocked with the lock catch after rotating is defined as a first rotating direction, the rotating direction opposite to the first rotating direction is defined as a second rotating direction, a torsion spring is arranged on the mechanical lock hook, a rotating shaft is sleeved in the torsion spring, the mechanical lock hook keeps the first rotating direction to rotate under the action of the torsion spring, the lower edge of the mechanical lock hook is contacted with one end of a stop piece, a flange is arranged on the mechanical lock hook, the torsion spring is arranged in the stop piece, the rotating shaft is sleeved in the torsion spring, an unlocking turntable is arranged at the top of the rotating shaft, the stop piece keeps the second rotating direction to rotate under the action of the torsion spring, an unlocking device is arranged at the other end of the stop piece, a telescopic hook is arranged on the unlocking device, and the unlocking turntable is connected with one end of a first unlocking steel rope, the first unlocking steel rope drives the stop piece to rotate in a first rotating direction, the unlocking turntable is also connected with one end of a second unlocking steel rope, the other end of the second unlocking steel rope is connected with the free end of an unlocking support, a torsion spring is arranged at the top end of the unlocking support, a rotating shaft is arranged in the torsion spring, the unlocking support keeps rotating in a second rotating direction under the action of the torsion spring, the second unlocking steel rope drives the unlocking support to rotate in the first rotating direction along with the rotating unlocking turntable, and the unlocking support is contacted with a motor brake handle;

3. A retractable pedal assembly as set forth in claim 1 wherein: the lock catch comprises a first lock catch and a second lock catch, the locking isolation assembly comprises a mechanical lock hook and an isolation lock hook, when the mechanical lock hook is in a locking state, the mechanical lock hook is clamped with the first lock catch, the rotating direction of the mechanical lock hook which is unlocked with the first lock catch after rotating is defined as a first rotating direction, the rotating direction opposite to the first rotating direction is defined as a second rotating direction, a torsion spring is arranged in the mechanical lock hook, a rotating shaft is sleeved on the torsion spring, the mechanical lock hook keeps the first rotating direction to rotate under the action of the torsion spring, the lower edge of the mechanical lock hook is contacted with one end of a stop piece, a flange is arranged on the mechanical lock hook, a torsion spring is arranged in the stop piece, the rotating shaft is sleeved in the torsion spring, an unlocking turntable is arranged at the top of the rotating shaft, the stop piece keeps the second rotating direction to rotate under the action of the torsion spring, an unlocking device is arranged at the other end of the stop piece, and a telescopic drag hook is arranged on the unlocking device, the unlocking turntable is connected with one end of a first unlocking steel rope, the first unlocking steel rope drives the stop piece to rotate in a first rotating direction, the unlocking turntable is also connected with one end of a second unlocking steel rope, the other end of the second unlocking steel rope is connected with the free end of an unlocking support, a torsion spring is arranged at the top end of the unlocking support, a rotating shaft is arranged in the torsion spring, the unlocking support keeps rotating in the second rotating direction under the action of the torsion spring, the second unlocking steel rope drives the unlocking support to rotate in the first rotating direction along with the rotating unlocking turntable, and the unlocking support is contacted with a motor brake handle;

4. A retractable pedal assembly as set forth in claim 2 wherein: still include spacing recess, first spacing component, be provided with spacing recess on the mechanical lock hook, be provided with first spacing component on the isolation lock hook, first spacing component rotates along with the isolation lock hook is synchronous, and when the mechanical lock hook was in the locking state, first spacing component free end rotated along spacing recess, until mechanical lock hook and isolation lock hook looks joint.

5. A telescopic pedal device according to claim 3, wherein: the isolation lock hook further comprises a second limiting element, the isolation lock hook further comprises a second flange, the second limiting element is provided with a torsion spring, a rotating shaft is sleeved in the torsion spring, the second limiting element rotates in a first rotating direction under the action of the torsion spring, one end of the second limiting element is connected with the second flange on the isolation lock hook in an initial state in a clamped mode, the second lock catch pushes the second limiting element to rotate in a second rotating direction after being recovered, and the second limiting element is separated from the second flange of the isolation lock hook.

6. A retractable pedal assembly as claimed in any one of claims 2 to 5, wherein: and when the unlocking support starts a motor to brake the handle, the mechanical lock hook and the isolation lock hook are in locking isolation, the displacement sensors are triggered.

7. A retractable pedal assembly as claimed in any one of claims 2 to 5, wherein: a buffer is arranged in the pedal frame.

8. A retractable pedal assembly as claimed in any one of claims 2 to 5, wherein: the pedal frame is characterized by further comprising a left side pressing strip, a right side pressing strip and a rear portion pressing strip, the left side pressing strip, the right side pressing strip and the rear portion pressing strip are respectively installed on the left portion, the right portion and the rear portion of the upper portion of the pedal frame, the front portion of the cover plate is in lap joint with steps on the rear portion of the threshold, the left side, the right side and the rear side of the cover plate are in lap joint with steps on the inner sides of the left side pressing strip, the right side pressing strip and the rear side pressing strip, and rubber sealing strips are arranged on edges of the steps of the threshold and the pressing strips.

9. A retractable pedal assembly as set forth in claim 1 wherein: the cover plate is connected with a cover plate support inside the pedal frame through a fastening element, and a torsional spring for jacking the cover plate is arranged below the cover plate support.

10. A retractable pedal assembly as claimed in any one of claims 2 to 5, wherein: the telescopic device comprises a transmission shaft, a driving motor drives the transmission shaft to rotate through a gear or a belt wheel, synchronous belts are installed at two ends of the transmission shaft, the other ends of the synchronous belts are installed at one end of a tensioning device, clamping plates on connecting portions on two sides of the movable pedal are connected with the synchronous belts, and a bearing guide assembly is installed at the other end of the tensioning device and used for supporting and guiding the inside of the connecting portions on two sides of the movable pedal.

11. A retractable pedal assembly as set forth in claim 10 wherein: the bearing guide assembly is characterized in that a plurality of bearing wheels and transverse supporting wheels are installed on the inner side of the bearing guide assembly, the bearing wheels support the inner parts of the connecting parts on the two sides of the movable pedal when the front part of the movable pedal is stressed vertically, and the transverse supporting rollers contact the inner side surfaces of the connecting parts on the two sides of the movable pedal to guide the movable pedal.

12. A retractable pedal assembly as set forth in claim 10 wherein: a plurality of bearing rollers and height adjusting rollers are mounted on one side of the connecting part on two sides of the movable pedal, and transverse supporting rollers are mounted on the other side of the connecting part on two sides of the movable pedal, and the bearing rollers roll in the C-shaped guide rails on two sides of the pedal frame; the height adjusting roller also rolls in the C-shaped guide rail and is used for compensating the gap between the bearing roller and the C-shaped guide rail; the transverse supporting rollers are in contact with the inner side of the pedal frame and can roll along the side surface of the pedal frame, so that the rear part of the movable pedal is prevented from shaking left and right.