WO2023160059A1 - 汽车电梯用带缓冲的层门防撞阻挡装置及汽车电梯 - Google Patents

汽车电梯用带缓冲的层门防撞阻挡装置及汽车电梯 Download PDF

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Publication number
WO2023160059A1
WO2023160059A1 PCT/CN2022/134362 CN2022134362W WO2023160059A1 WO 2023160059 A1 WO2023160059 A1 WO 2023160059A1 CN 2022134362 W CN2022134362 W CN 2022134362W WO 2023160059 A1 WO2023160059 A1 WO 2023160059A1
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WIPO (PCT)
Prior art keywords
plate
collision
collision plate
drive nut
hinge seat
Prior art date
Application number
PCT/CN2022/134362
Other languages
English (en)
French (fr)
Inventor
杜海军
杨建荣
周元林
秦健聪
Original Assignee
东南电梯股份有限公司
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Application filed by 东南电梯股份有限公司 filed Critical 东南电梯股份有限公司
Publication of WO2023160059A1 publication Critical patent/WO2023160059A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/36—Gates or other apparatus controlling access to, or exit from, cars, cages, or hoistway landings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/18—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors
    • B66B13/185—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position without manually-operable devices for completing locking or unlocking of doors electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
    • E01F13/06—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage by swinging into open position about a vertical or horizontal axis parallel to the road direction, i.e. swinging gates

Definitions

  • the invention belongs to the field of elevator equipment, and in particular relates to a floor door anti-collision blocking device with a buffer for an automobile elevator and an automobile elevator.
  • a car elevator is a special cargo elevator that is used to carry non-commercial cars, that is, private cars that we use in our daily life.
  • non-commercial cars that is, private cars that we use in our daily life.
  • the private car is likely to rush towards and hit the landing door, and the strength of the landing door cannot withstand the impact of the private car, which will not only cause damage to the landing door and the private car
  • the more serious damage is that the private car crashes into the landing door and rushes into the hoistway to cause a bigger accident.
  • car elevators on the market are rarely equipped with landing door anti-collision devices.
  • the purpose of the present invention is to provide a landing door anti-collision blocking device with a buffer for an automobile elevator, which can effectively prevent the car from colliding with the landing door and at the same time prevent the car from being damaged.
  • a landing door anti-collision blocking device with cushioning for automobile elevators which includes several blocking modules, and each of the blocking modules includes: an installation shell, installed on the The anti-collision plate assembly in the above-mentioned installation housing and having an open and retracted state, and a slider linkage mechanism for driving the anti-collision plate assembly to open or retract, is characterized in that: the blocking module is located opposite to the landing door The left, right or left and right sides of the direction, the slider linkage mechanism includes a threaded transmission part and a retractable buffer link, the threaded drive part includes a movable drive nut assembly, and the buffer link Both ends are respectively pivotally connected to the drive nut assembly and the crash plate assembly, the drive nut assembly has at least two limit positions, and when the drive nut assembly moves to one of the limit positions, the buffer When the connecting rod is opened, the vehicle is blocked from passing through, and when the drive nut assembly
  • the thread transmission part includes a base channel steel, a transmission lead screw seat, a drive lead screw, a universal joint and a drive motor.
  • the shafts at the ends are respectively installed in the shaft holes of the transmission screw seat, and the end protruding from the transmission screw seat is connected with the output shaft of the driving motor through a universal joint.
  • the transmission nut assembly is installed on the transmission screw and forms a self-locking Functional trapezoidal thread pair;
  • the thread transmission part includes a drive nut position detection plate, a position detection switch frame, a front position detection switch, and a rear position detection switch.
  • the drive nut position detection plate is installed on the drive nut assembly, and the front position detection switch and the rear position detection switch pass through the
  • the position detection switch frame is installed on the channel steel of the base, and the front position detection switch and the rear position detection switch respectively correspond to the two limit positions of the drive nut assembly;
  • the drive nut assembly consists of a drive nut, a bearing wheel axle plate, a load wheel, and a rear connecting rod hinge seat.
  • the two bearing wheel axle plates are respectively installed and fixed on both sides of the drive nut.
  • the hinge seat of the rear connecting rod is installed and fixed on the top of the drive nut, and the position detection plate of the drive nut is installed and fixed on the drive nut;
  • the anti-collision plate assembly includes the anti-collision plate, the hinge seat of the front link, the movable hinge seat of the anti-collision plate, the hinge seat pin of the anti-collision plate, the fixed hinge seat of the anti-collision plate, and the movable hinge seat of the anti-collision plate is fixed on the anti-collision plate by bolts
  • the fixed hinge seat of the anti-collision plate is hinged with the movable hinge seat of the anti-collision plate through the hinge seat pin of the anti-collision plate and is fixed on the installation shell, and the hinge seat of the front connecting rod is fixed on the anti-collision plate by bolts;
  • the anti-collision plate Including the bottom plate of the anti-collision plate, the rubber plate of the anti-collision plate to prevent the car from being scratched when the anti-collision plate is installed;
  • the installation housing includes a block module frame, a first shell mounting plate installed on the front side of the block block frame, a second shell mounting plate installed on the rear side of the block block frame, a large shell, and a small shell, and the large shell is covered on the block
  • the rear side and the peripheral side of the frame formed by the module frame, the first shell mounting plate and the second shell mounting plate, the small shell is covered on the first shell mounting plate on the front side and forms an opening on the opening path of the anti-collision plate assembly;
  • the blocking device includes a ranging sensor for detecting whether there is a car traveling to the landing, a floor detection switch for detecting whether the car is leveling at the landing, and the distance measuring sensor and the parking detection switch.
  • a controller that is electrically connected and used to control the action of the blocking module, and an audible and visual alarm installed on the installation housing;
  • the anti-collision plate assembly is distributed in a figure-eight shape, and The minimum distance between the two is less than the width of the car.
  • the present invention also provides a buffered landing door anti-collision blocking device for an automobile elevator, which includes several blocking modules, each of which includes: an installation housing, installed in the installation housing and having opening and closing The anti-collision panel assembly in the retracted state, and the slider linkage mechanism for driving the anti-collision panel assembly to open or retract,
  • the slider linkage mechanism includes a threaded transmission part and a retractable buffer link
  • the The threaded transmission part includes a movable transmission nut assembly
  • the two ends of the buffer link are respectively pivotally connected to the transmission nut assembly and the anti-collision plate assembly
  • the transmission nut assembly has at least two extreme positions
  • the thread transmission part includes a base channel steel, a transmission screw seat, a transmission screw, a universal joint and a drive motor, and the two screw seats are fixed on both ends of the base channel steel by bolts, and the transmission
  • the shafts at both ends of the screw are respectively installed in the shaft holes of the drive screw seat, and one end protruding from the drive screw seat is connected with the output shaft of the drive motor through a universal joint, and the drive nut assembly is installed on the drive screw to form a Trapezoidal thread pair with self-locking function.
  • the transmission screw drives the transmission nut to move smoothly and smoothly, and forms a self-locking trapezoidal thread pair. When the transmission screw does not rotate, the anti-collision plate assembly can maintain its original shape even if the anti-collision plate assembly is subjected to axial pressure. stateful.
  • the thread transmission part includes a drive nut position detection plate, a position detection switch frame, a front position detection switch, and a rear position detection switch.
  • the drive nut position detection plate is installed on the drive nut assembly, and the front position detection switch and the rear position detection The switches are respectively installed on the channel steel of the base through the position detection switch frame, and the front position detection switch and the rear position detection switch respectively correspond to the two limit positions of the drive nut assembly.
  • the drive nut assembly includes a drive nut, a bearing wheel shaft plate, a load wheel, and a rear connecting rod hinge seat.
  • the two load wheel shaft plates are respectively installed and fixed on both sides of the drive nut.
  • the first load wheel, the hinge seat of the rear link is installed and fixed on the top of the drive nut, and the drive nut position detection plate is installed and fixed on the drive nut.
  • the loading wheels make the loading wheel shaft plate move more smoothly, thereby ensuring smoother opening of the anti-collision plate assembly.
  • the anti-collision plate assembly includes the anti-collision plate, the hinge seat of the front link, the movable hinge seat of the anti-collision plate, the hinge seat pin of the anti-collision plate, the fixed hinge seat of the anti-collision plate, and the movable hinge seat of the anti-collision plate is fixed by bolts
  • the fixed hinge seat of the anti-collision plate is hinged with the movable hinge seat of the anti-collision plate through the hinge seat pin of the anti-collision plate and is fixed on the installation shell, and the hinge seat of the front link is fixed on the anti-collision plate by bolts.
  • the anti-collision plate includes the anti-collision plate bottom plate and the anti-collision plate rubber plate for preventing the automobile from being scratched when the anti-collision plate is installed.
  • the anti-collision offset has a certain degree of elasticity, so it can prevent the car from being scratched.
  • the installation housing includes a blocking module frame, a first casing mounting plate installed on the front side of the blocking module frame, a second casing mounting plate installed on the rear side of the blocking module frame, a large casing, a small casing, and the large casing includes Covered on the rear side and peripheral side of the frame formed by the block module frame, the first shell mounting plate and the second shell mounting plate, the small shell is wrapped on the first shell mounting plate on the front side and on the opening path of the anti-collision plate assembly Form the opening.
  • the unopened part can protect the equipment installed in the casing.
  • the blocking device includes a ranging sensor for detecting whether a car travels to a landing, a floor detection switch for detecting whether the car is at the leveling floor of the landing, and the distance measuring sensor, the parking floor
  • the detection switch is electrically connected to a controller for controlling the action of the blocking module, and an audible and visual alarm installed on the installation shell.
  • the anti-collision plate assembly is in a figure-eight shape. distribution, and the minimum distance between the two is less than the width of the car.
  • the present invention also provides a car elevator, which includes a traction machine, a car, and a counterweight assembly.
  • the car elevator also includes a blocking device arranged on the floor of the landing, and the blocking device is any Landing door anti-collision blocking device with cushioning for car elevators.
  • the beneficial effects of the present invention are: when the elevator is not at the landing where the car is located, the blocking module is in an open state, and the anti-collision plate assembly is located on the left and right sides of the front end of the car, the driver can clearly judge the position of the elevator from the blocking module, which has an early warning function.
  • the driver of the car misoperates, remind the driver to stop in time in advance.
  • the buffer link shrinks a certain distance, but the distance between the anti-collision plate components is still not enough to allow the car to pass.
  • the contraction of the buffer link has a certain buffer function to reduce damage to the vehicle and passengers in the car, but it is not enough to let the car pass through after it is fully contracted, and it can prevent the car from rushing through the landing door and falling into the elevator shaft.
  • FIG. 1 Schematic diagram of the general layout of the anti-collision blocking device
  • Figure 2 is a three-dimensional schematic diagram of a single blocking module
  • Fig. 3 is a three-dimensional schematic diagram of a single blocking module after the shell plate is removed;
  • Figure 4 is a schematic diagram of the structure of a single blocking module after the shell plate and the shell mounting plate are removed;
  • Figure 5 three-dimensional schematic diagram of the thread transmission part
  • FIG. 1 Three-dimensional schematic diagram of the anti-collision plate assembly
  • Figure 7 is a three-dimensional schematic diagram of the transmission nut assembly
  • FIG. 8 Schematic diagram of the section structure of the anti-collision plate
  • Figure 9 is a schematic diagram of when the buffer connecting rods are all compressed.
  • Figure 10 is a schematic diagram of when the anti-collision plate is retracted
  • 1-single blocking module 2-ranging sensor, 3-sound and light alarm, 4-elevator landing door opening, 5-elevator shaft, 6-stop floor detection switch, 7-detection switch frame, 8-elevator guide rail , 9-detection switch board, 10-car, 11-controller, 12-automobile, 101-big shell, 102-small shell, 103-anti-collision plate assembly, 104-buffer connecting rod, 105-block module frame, 106-drive motor, 107-universal joint, 108-thread transmission part, 109-front connecting rod pin, 110-rear connecting rod pin, 111-inner shell mounting plate, 112-outer shell mounting plate, 301 - Anti-collision plate, 302- hinge seat of front connecting rod, 303- movable hinge seat of anti-collision plate, 304- pin of hinge seat of anti-collision plate, 305- fixed hinge seat of anti-collision plate, 801- base channel steel, 802- transmission wire Bar seat, 803-drive
  • the car elevator includes a traction machine, a car, a counterweight assembly, and a landing door anti-collision blocking device with a buffer on the floor of the landing.
  • the traction machine, the car, and the counterweight assembly are not the focus of this application. I won't go into details here.
  • the landing door anti-collision blocking device with cushioning for car elevators includes several blocking modules 1, which are used to detect whether there is a distance measuring sensor 2 for detecting whether there is a car going to the landing, and for detecting the car 10.
  • the floor stop detection switch 6 for leveling at the landing station, the controller 11 electrically connected to the distance measuring sensor 2, the floor stop detection switch 6 and used to control the action of the blocking module 1 , and the sound and light alarm 3 .
  • Each blocking module 1 includes: an installation housing 100, an anti-collision plate assembly 103 installed in the installation housing 100 and having an open and retracted state, and a The slider link mechanism used to drive the anti-collision plate assembly 103 to open or retract.
  • the slider link mechanism includes a threaded transmission part 108 and a retractable buffer link 104.
  • the buffer link 104 has a hydraulic and/or spring buffer self-resetting function. In this embodiment, it includes an outer tube 1041 and a rear end through The inner tube 1040 arranged in the outer tube and the buffer compression spring arranged in the outer tube and pressed against the rear end of the inner tube, the thread transmission part 108 includes a movable drive nut assembly 803, and the two ends of the buffer link 104 are respectively It is pivotally connected with the drive nut assembly 803 and the crash plate assembly 103.
  • the drive nut assembly 803 has at least two limit positions.
  • the buffer link 104 When the drive nut assembly 803 moves to one of the limit positions, the buffer link 104 is opened, and at this time, the vehicle is blocked from passing through. , when the drive nut assembly 803 moves to another extreme position, the buffer link 104 is retracted and the automobile passes through, and the automobile passes freely at this moment.
  • the thread transmission part 108 includes a base channel steel 801, a transmission screw seat 802, a transmission nut assembly 803, a position detection switch frame 804, a front position detection switch 805, a transmission nut position detection plate 806, a transmission screw 807, and a rear position detection switch 808 1.
  • Universal coupling 107 and drive motor 106 2 pieces of transmission screw seat 802 are fixed on the two ends of base channel steel 801 by bolts, and the shafts at both ends of transmission screw 807 are respectively loaded into the shafts of 2 pieces of transmission screw seat 802 In the hole, one end protruding from the drive screw seat 802 will be connected with the output shaft of the drive motor 106 through the universal joint 107, and the drive nut assembly 803 is installed on the drive screw 807 to form a ladder with self-locking function.
  • the transmission nut assembly 803 moves back and forth along the axial direction of the transmission screw 807, the transmission nut position detection plate 806 is fixed on the transmission nut assembly 803, and the two position detection switch frames 804 are arranged on the base
  • the front position detection switch 805 is installed on the position detection switch frame 804 near the drive motor 106 side
  • the rear position detection switch 808 is installed on another position detection switch frame 804;
  • the transmission nut 8031, the bearing wheel axle plate 8032, the bearing wheel 8033, and the rear connecting rod hinge seat 8034 are composed.
  • the two bearing wheel axle plates 8032 are installed and fixed on both sides of the transmission nut 8031 respectively, and each bearing wheel axle plate 8032 is equipped with two bearing wheels. 8033, the rear link hinge seat 8034 is installed and fixed on the top of the drive nut 8031, and the drive nut position detection plate 806 is installed and fixed on the drive nut 8031.
  • the anti-collision plate assembly 103 includes the anti-collision plate 301, the hinge seat 302 of the front link, the movable hinge seat 303 of the anti-collision plate, the hinge seat pin 304 of the anti-collision plate, and the fixed hinge seat 305 of the anti-collision plate;
  • the bolt is fixed on one end of the anti-collision plate 301, the fixed hinge seat 305 of the anti-collision plate is hinged with the movable hinge seat 303 of the anti-collision plate through the hinge seat pin 304 of the anti-collision plate, and the hinge seat 302 of the front link is fixed on the anti-collision plate by bolts 301 on the middle position;
  • the anti-collision plate fixed hinge seat 305 is fixed on the block module frame 105, the anti-collision plate 301 can rotate around the anti-collision plate hinge pin 304; wherein the anti-collision plate 301 is composed of the anti-collision plate bottom plate 3011, The
  • the installation housing includes a blocking module frame 105, a first shell mounting plate 112 installed on the front side of the blocking module frame, a second shell mounting plate 111 installed on the rear side of the blocking module frame, a large shell 101, a small shell 102, and an anti-collision plate
  • the fixed hinge seat 305 is fixed on the blocking module frame 105
  • the base channel steel 801 is fixed on the blocking module frame 105
  • the large casing 101 is covered on the blocking module frame 105, the first casing mounting plate 112 and the second casing mounting plate 111.
  • the small housing 102 covers the first housing mounting plate 112 on the front side and forms an opening on the opening path of the anti-collision plate assembly.
  • the large housing 101 and the small housing 102 are the outermost structures of a single blocking module, they protect the internal transmission structure from being directly exposed to wind and rain, and improve the aesthetics of a single blocking module.
  • the distance measuring sensor 2 is arranged on the anti-collision plate 301 of the single blocking module 1
  • the sound and light alarm 3 is arranged on the top of the large casing 101 of the blocking module of the single blocking module 1
  • the floor detection switch 6 is arranged in the elevator shaft 5.
  • the detection switch frame 7 is installed on the elevator guide rail 8, the detection switch plate 9 is arranged on the elevator car 10, and the controller 11 is arranged in the elevator shaft 5.
  • the opening and retracting principle of a single blocking module 1 is as follows: the drive motor 106 performs forward/reverse rotation when receiving a signal and powers on, and the rotation and power are transmitted to the transmission screw 807 through the universal joint 107, and the transmission screw 807
  • the trapezoidal thread pair formed with the transmission nut assembly 803 converts the rotation on the transmission screw 807 into the movement of the transmission nut assembly 803.
  • the transmission nut assembly 803 moves, it drives the rear end of the buffer link 104 to move, and the front end of the buffer link 104 pushes
  • the anti-collision plate 301 rotates around the hinge seat pin 304 of the anti-collision plate; when fully opened, the anti-collision plate 301 and the channel steel 801 of the base are at 90 degrees.
  • the buffer link 104 has a spring self-resetting function. Under the action of the spring force, when the single blocking module 1 is opened and retracted, the buffer link 104 is in a fully extended state; when the blocking module 1 is opened, the anti-collision plate When 301 is squeezed by the car, the buffer link 104 shrinks to prevent the blocking module from being opened when the elevator is not at the landing where the car is located.
  • the position of the elevator has an early warning function.
  • the driver of the car misuses the operation, it will remind the driver to stop in time. The distance between them is still not enough for the car to pass.
  • the buffer link shrinks to have a certain buffer function to reduce the damage to the vehicle and the passengers in the car, but it is not enough to let the car pass after it is fully contracted, and it can prevent the car from rushing over.
  • the landing door the accident of falling into the elevator shaft.
  • the elevator control system sends a signal to the controller 11.
  • the controller 11 controls the retraction of the left and right two single blocking modules 1, at this time the car 12 can pass smoothly;
  • the elevator control system sends a signal to the controller 11, and the controller 11 controls the left and right Two single blocking modules 1 open;
  • the distance measuring sensor 2 detected that the car 12 was close to the anti-collision plate 301, and the distance measuring sensor 2 sent a signal to Controller 11, controller 11 sends action signal to audible and visual alarm 3 through calculation, makes it send audible and visual alarm, to remind the driver in the car 12 to stop moving forward; if the driver does not stop the car 12 in time, continue to move forward
  • the buffer link 104 is compressed under the impact force, the anti-collision plate 301 rotates around the anti-collision plate hinge pin 304 at a certain angle, and the buffer link 104 is compressed Absorb a part of automobile 12 and anti-collision plate 301 collision energy, reduce the damage to automobile 12, the gap of left and right two anti-collision plates 301 after rotating certain angle with anti-collision plate 301 is not enough to make automobile 12 pass

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  • Automation & Control Theory (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

一种汽车电梯用带缓冲的层门防撞阻挡装置及汽车电梯，汽车电梯用带缓冲的层门防撞阻挡装置包括若干个阻挡模块（1），每个阻挡模块包括：安装壳体（100）、安装于安装壳体内且具有打开和收起状态的防撞板组件（103）、用于驱动防撞板组件打开或收起的滑块连杆机构，滑块连杆机构包括螺纹传动部（108）以及可伸缩的缓冲连杆（104），螺纹传动部包括可移动的传动螺母组件（803），缓冲连杆的两端部分别与传动螺母组件以及防撞板组件枢轴连接。该层门防撞阻挡装置能提前提醒司机及时停车，在司机未及时停车，车辆与阻挡装置发生碰撞时具有一定的缓冲功能并能防止车辆通过阻挡装置，以减少对车辆及车内乘客的损害。

Description

汽车电梯用带缓冲的层门防撞阻挡装置及汽车电梯 技术领域
本发明属于电梯设备领域，特别涉及一种汽车电梯用带缓冲的层门防撞阻挡装置及汽车电梯。
背景技术
汽车电梯是一种特殊的载货电梯，其用于运载非商用汽车、即我们日常中使用的私家车。当私家车在层门外等侯电梯，由于司机操作不当，私家车很有可能冲向并撞击层门，而层门的强度承受不住私家车的撞击，如此不仅对层门和私家车造成损坏，更严重的是私家车撞坏层门后冲入井道从而发生更大的事故。目前市场上的汽车电梯很少设置有层门防撞的装置，即使设置有借用其他行业的防撞装置(比如，液压、气动升降柱)，一方面安装的工程量较大，需要开挖比较大的深坑，另一方面在汽车发生误操作碰撞防撞阻挡装置时，没有任何缓冲对汽车破坏性比较大。
发明内容
本发明的目的是提供一种汽车电梯用带缓冲的层门防撞阻挡装置，其能有效起到防止汽车冲撞层门同时能防止汽车受损。
为解决上述技术问题，本发明采用如下技术方案：一种汽车电梯用带缓冲的层门防撞阻挡装置，其包括若干个阻挡模块，每个所述阻挡模块包括：安装壳体、安装于所述安装壳体内且具有打开和收起状态的防撞板组件、用于驱动所述防撞板组件打开或收起的滑块连杆机构，其特征在于：所述阻挡模块位于正对层门方向的左侧、右侧或左右两侧，所述滑块连杆机构包括螺纹传动部以及可伸缩的缓冲连杆，所述螺纹传动部包括可移动的传动螺母组件，所述缓冲连杆的两端部分别与所述传动螺母组件以及所述防撞板组件枢轴连接，所述传动螺母组件至少具有两个极限位置，当所述传动螺母组件移动到其中一个极限位置时，所述缓冲连杆打开，此时阻挡汽车通过，当所述传动螺母组件移动到另一个极限位置时，所述缓冲连杆收起汽车通过，此时汽车自由通过；
所述螺纹传动部包括底座槽钢、传动丝杠座、传动丝杠、万向连轴节以及驱动电机，两个所述丝杠座通过螺栓固定在底座槽钢的两端，传动丝杠两端的轴分别装入传动丝杠座的轴孔内，伸出传动丝杠座的一端通过万向连轴节与驱动电机的输出轴连接，传动螺母组件安装在传动丝杠上并组成具有自锁功能的梯型螺纹副；
所述螺纹传动部包括传动螺母位置检测板、位置检测开关架、前到位检测开关、后到位检测开关，传动螺母位置检测板安装在传动螺母组件上，前到位检测开关和后到位检测开关分别通过位置检测开关架安装在底座槽钢上，前到位检测开关和后到位检测开关分别对应所述传动螺母组件的两个极限位置；
传动螺母组件包括传动螺母、承载轮轴板、承载轮、后连杆铰座组成，两个所述承载轮轴板分别安装固定在传动螺母的两侧，每件承载轮轴板上设置两个所述承载轮，后连杆铰座安装固定在传动螺母的顶部，传动螺母位置检测板安装固定在传动螺母上；
所述防撞板组件包括防撞板、前连杆铰座、防撞板动铰座、防撞板铰座销、防撞板定铰座，防撞板动铰座通过螺栓固定在防撞板的一端，防撞板定铰座通过防撞板铰座销与防撞板动铰座铰接且固定在安装壳体上，前连杆铰座通过螺栓固定在防撞板上；防撞板包括防撞板底板、防止汽车装上防撞板时擦伤的防撞板胶板；
所述安装壳体包括挡模块架、安装在挡模块架前侧的第一外壳安装板、安装在挡模块架后侧的第二外壳安装板、大外壳、小外壳，大外壳包覆在挡模块架、第一外壳安装板和第二外壳安装板形成的框架后侧以及周侧，小外壳包覆在前侧的第一外壳安装板上并在防撞板组件的打开路径上形成开口；
所述阻挡装置包括用于检测是否有汽车行至层站的测距传感器，用于检测轿厢是否在该层站平层的停层检测开关，与所述测距传感器、停层检测开关相电连接且用于控制所述阻挡模块动作的控制器，以及安装于所述安装壳体上的声光报警器；
所述阻挡模块有两个且呈对称设置，当所述缓冲连杆完全打开时，在撞击力的作用下缓冲连杆被压缩至最大位置时，所述防撞板组件呈八字形分布，且两者最小间距小于汽车宽度。
本发明还提供了一种汽车电梯用带缓冲的层门防撞阻挡装置，其包括若干个阻挡模块，每个所述阻挡模块包括：安装壳体、安装于所述安装壳体内且具有打开和收起状态的防撞板组件、用于驱动所述防撞板组件打开或收起的滑块连杆机构，所述滑块连杆机构包括螺纹传动部以及可伸缩的缓冲连杆，所述螺纹传动部包括可移动的传动螺母组件，所述缓冲连杆的两端部分别与所述传动螺母组件以及所述防撞板组件枢轴连接，所述传动螺母组件至少具有两个极限位置，当所述传动螺母组件移动到其中一个极限位置时，所述缓冲连杆打开， 此时阻挡汽车通过，当所述传动螺母组件移动到另一个极限位置时，所述缓冲连杆收起汽车通过，此时汽车自由通过。缓冲连杆可做弹性伸缩具有缓冲及弹簧自复位功能。
优化的，所述螺纹传动部包括底座槽钢、传动丝杠座、传动丝杠、万向连轴节以及驱动电机，两个所述丝杠座通过螺栓固定在底座槽钢的两端，传动丝杠两端的轴分别装入传动丝杠座的轴孔内，伸出传动丝杠座的一端通过万向连轴节与驱动电机的输出轴连接，传动螺母组件安装在传动丝杠上并组成具有自锁功能的梯型螺纹副。传动丝杠带动传动螺母移动运转丝滑平稳，且组成能自锁的梯型螺纹副，能够在传动丝杆不转动时，即使防撞板组件受到轴向的压力防撞板组件还能保持原有状态。
进一步的，所述螺纹传动部包括传动螺母位置检测板、位置检测开关架、前到位检测开关、后到位检测开关，传动螺母位置检测板安装在传动螺母组件上，前到位检测开关和后到位检测开关分别通过位置检测开关架安装在底座槽钢上，前到位检测开关和后到位检测开关分别对应所述传动螺母组件的两个极限位置。
更进一步的，传动螺母组件包括传动螺母、承载轮轴板、承载轮、后连杆铰座组成，两个所述承载轮轴板分别安装固定在传动螺母的两侧，每件承载轮轴板上设置两个所述承载轮，后连杆铰座安装固定在传动螺母的顶部，传动螺母位置检测板安装固定在传动螺母上。承载轮使得承载轮轴板移动更顺畅，进而保证防撞板组件打开的更顺畅。
优化的，所述防撞板组件包括防撞板、前连杆铰座、防撞板动铰座、防撞板铰座销、防撞板定铰座，防撞板动铰座通过螺栓固定在防撞板的一端，防撞板定铰座通过防撞板铰座销与防撞板动铰座铰接且固定在安装壳体上，前连杆铰座通过螺栓固定在防撞板上。
进一步的，防撞板包括防撞板底板、防止汽车装上防撞板时擦伤的防撞板胶板。防撞胶版具有一定弹性，因此能防止汽车被擦伤。
优化的，所述安装壳体包括挡模块架、安装在挡模块架前侧的第一外壳安装板、安装在挡模块架后侧的第二外壳安装板、大外壳、小外壳，大外壳包覆在挡模块架、第一外壳安装板和第二外壳安装板形成的框架后侧以及周侧，小外壳包覆在前侧的第一外壳安装板上并在防撞板组件的打开路径上形成开口。未开口处能对安装壳体内的设备起到保护作用。
优化的，所述阻挡装置包括用于检测是否有汽车行至层站的测距传感器，用于检测轿厢是否在该层站平层的停层检测开关，与所述测距传感器、停层检测开关相电连接且用于控制所述阻挡模块动作的控制器，以及安装于所述安装壳体上的声光报警器。
优化的，所述阻挡模块有两个且呈对称设置，当所述缓冲连杆完全打开时，在撞击力的作用下缓冲连杆被压缩至最大位置时，所述防撞板组件呈八字形分布，且两者最小间距小于汽车宽度。
本发明还提供了一种汽车电梯，其包括曳引机、轿厢、以及配重组件，所述汽车电梯还包括设于层站地面上的阻挡装置，所述阻挡装置为上述任一所述汽车电梯用带缓冲的层门防撞阻挡装置。
本发明的有益效果在于：当电梯不在汽车所在层站时，阻挡模块处于打开状态，防撞板组件处于车头前端的左右两侧，司机能够明显从阻挡模块判断电梯位置，具有提前警示功能，在汽车司机误操作时，提前提醒司机及时停车，在司机未及时停车，车辆与阻挡装置发生碰撞时，缓冲连杆收缩一定行程，但收缩后防撞板组件之间的间距仍然不足以让汽车通过，此过程中，缓冲连杆收缩具有一定的缓冲功能，以减少对车辆及车内乘客的损害，但完全收缩后不足以让汽车通过，能防止汽车冲过层门、发生坠入电梯井道的事故。
附图说明
图1防撞阻挡装置总布置示意图；
图2单个阻挡模块三维示意图；
图3单个阻挡模块去掉外壳板后的三维示意图；
图4单个阻挡模块去掉外壳板及外壳安装板后的结构示意图；
图5螺纹传动部三维示意图；
图6防撞板组件三维示意图；
图7传动螺母组件三维示意图；
图8防撞板截面结构示意图；
图9缓冲连杆全部被压缩时的示意图；
图10防撞板被收回时的示意图；
其中：1-单个阻挡模块，2-测距传感器，3-声光报警器，4-电梯层门门洞，5-电梯井道，6-停层检测开关，7-检测开关架，8-电梯导轨，9-检测开关板，10-轿厢，11-控制器，12-汽车，101-大外壳，102-小外壳，103-防撞板组件， 104-缓冲连杆，105-挡模块架，106-驱动电机，107-万向连轴节，108-螺纹传动部，109-前连杆销轴，110-后连杆销轴，111-内外壳安装板，112-外外壳安装板，301-防撞板，302-前连杆铰座，303-防撞板动铰座，304-防撞板铰座销，305-防撞板定铰座，801-底座槽钢，802-传动丝杠座，803-传动螺母组件，804-位置检测开关架，805-前到位检测开关，806-传动螺母位置检测板，807-传动丝杠，808-后到位检测开关，8031-传动螺母，8032-承载轮轴板，8033-承载轮，8034-后连杆铰座，3011-防撞板底板，3012-防撞板胶板；1041-外管；1040-内管。
具体实施方式
下面结合附图所示的实施例对本发明作以下详细描述：
汽车电梯包括曳引机、轿厢、配重组件以及设于层站地面上的汽车电梯用带缓冲的层门防撞阻挡装置，曳引机、轿厢、配重组件非本申请重点，在此不做赘述。
如图1-10所示，汽车电梯用带缓冲的层门防撞阻挡装置其包括若干个阻挡模块1，用于检测是否有汽车行至层站的测距传感器2，用于检测轿厢10是否在该层站平层的停层检测开关6，与测距传感器2、停层检测开关6相电连接且用于控制阻挡模块1动作的控制器11，以及声光报警器3。
在本实施例中，阻挡模块有两个且呈对称设置，每个阻挡模块1包括：安装壳体100、安装于安装壳体100内且具有打开和收起状态的防撞板组件103、用于驱动防撞板组件103打开或收起的滑块连杆机构。
滑块连杆机构包括螺纹传动部108以及可伸缩的缓冲连杆104，缓冲连杆104具有液压和/或弹簧缓冲自复位功能，在本实施例中，其包括外管1041和后端部穿设于外管内的内管1040以及设于外管内且顶紧在内管的后端部的缓冲压簧，螺纹传动部108包括可移动的传动螺母组件803，缓冲连杆104的两端部分别与传动螺母组件803以及防撞板组件103枢轴连接，传动螺母组件803至少具有两个极限位置，当传动螺母组件803移动到其中一个极限位置时，缓冲连杆104打开，此时阻挡汽车通过，当传动螺母组件803移动到另一个极限位置时，缓冲连杆104收起汽车通过，此时汽车自由通过。
螺纹传动部108包括底座槽钢801、传动丝杠座802、传动螺母组件803、位置检测开关架804、前到位检测开关805、传动螺母位置检测板806、传动丝杠807、后到位检测开关808、万向连轴节107与驱动电机106；2件传动丝杠 座802通过螺栓固定在底座槽钢801的两端，传动丝杠807两端的轴分别装入2件传动丝杠座802的轴孔内，伸出传动丝杠座802的一端将通过万向连轴节107与驱动电机106的输出轴连接起来，传动螺母组件803安装在传动丝杠807上，并组成具有自锁功能的梯型螺纹副，当传动丝杠807转动时传动螺母组件803沿传动丝杠807的轴向前后移动，传动螺母位置检测板806固定在传动螺母组件803上，2件位置检测开关架804设置在底座槽钢801的侧边，前到位检测开关805安装在靠近驱动电机106一侧的位置检测开关架804上，后到位检测开关808安装在另外一件位置检测开关架804上；传动螺母组件803由传动螺母8031、承载轮轴板8032、承载轮8033、后连杆铰座8034组成，2件承载轮轴板8032分别安装固定在传动螺母8031的两侧，每件承载轮轴板8032上装设2件承载轮8033，后连杆铰座8034安装固定在传动螺母8031的顶部，传动螺母位置检测板806安装固定在传动螺母8031上。
防撞板组件103包括防撞板301、前连杆铰座302、防撞板动铰座303、防撞板铰座销304、防撞板定铰座305；防撞板动铰座303通过螺栓固定在防撞板301的一端，防撞板定铰座305通过防撞板铰座销304与防撞板动铰座303铰接在一起，前连杆铰座302通过螺栓固定在防撞板301偏中间位置上；在防撞板定铰座305固定在挡模块架105时防撞板301可以绕防撞板铰座销304转动；其中防撞板301由防撞板底板3011、防撞板胶板3012组成，防撞板底板3011使防撞板301有足够的强度，防撞板胶板3012粘贴或浇注在防撞板底板3011上，使汽车12撞到防撞板301时有一定的保护作用。
安装壳体包括阻挡模块架105、安装在阻挡模块架前侧的第一外壳安装板112、安装在阻挡模块架后侧的第二外壳安装板111、大外壳101、小外壳102，防撞板定铰座305固定于阻挡模块架105上，底座槽钢801固定在阻挡模块架105上，大外壳101包覆在阻挡模块架105、第一外壳安装板112和第二外壳安装板111形成的框架后侧以及周侧，小外壳102包覆在前侧的第一外壳安装板112上并在防撞板组件的打开路径上形成开口。其中大外壳101、小外壳102为单个阻挡模块的最外层结构，它们保护内部的传动结构不会直接暴露在外部被风吹雨淋，并提升单个阻挡模块的美观度。
测距传感器2设置在单个阻挡模块1的防撞板301上，声光报警器3设置在单个阻挡模块1的阻挡模块大外壳101顶上，停层检测开关6设置在电梯井道5内，通过检测开关架7安装在电梯导轨8上，检测开关板9设置在电梯轿 厢10上，控制器11设置在电梯井道5内。
单个阻挡模块1的开启、收回原理如下：驱动电机106在收到信号通电时进行正/反转，通过万向连轴节107将转动及动力传递到传动丝杠807上，通过传动丝杠807与传动螺母组件803组成的梯型螺纹副将传动丝杠807上的转动转化为传动螺母组件803的移动，传动螺母组件803移动的同时带动缓冲连杆104后端移动，则缓冲连杆104前端推动防撞板301绕防撞板铰座销304转动；完全开启时防撞板301与底座槽钢801呈90度，此时传动螺母位置检测板806正好触发前到位检测开关805，前到位检测开关805发出信号将驱动电机106停止；完全收回时防撞板301与底座槽钢801平行，此时传动螺母位置检测板806正好触发后到位检测开关808，后到位检测开关808发出信号将驱动电机106停止；缓冲连杆104具有弹簧自复位功能，在弹簧力的作用下使得单个阻挡模块1的开启、收回时，缓冲连杆104处于完全伸出状态；当阻挡模块1开启状态下，防撞板301收到汽车的挤压时，缓冲连杆104收缩，防止当电梯不在汽车所在层站时，阻挡模块处于打开状态，防撞板组件处于车头前端的左右两侧，司机能够明显从阻挡模块判断电梯位置，具有提前警示功能，在汽车司机误操作时，提前提醒司机及时停车，在司机未及时停车，车辆与阻挡装置发生碰撞时，缓冲连杆收缩一定行程，但收缩后防撞板组件之间的间距仍然不足以让汽车通过，此过程中，缓冲连杆收缩具有一定的缓冲功能，以减少对车辆及车内乘客的损害，但完全收缩后不足以让汽车通过，能防止汽车冲过层门、发生坠入电梯井道的事故。
当电梯轿厢10不在该层进行平层：电梯不在该层进行平层时，电梯控制系统在不会发出信号到控制器11，此时该层电梯层门门洞4前的两套单个阻挡模块1保持开启状态；
当电梯轿厢10在该层进行平层时：电梯控制系统发出信号到控制器11电梯在该层平层，且此时设置在电梯轿厢10上使停层检测开关6动作，发出信号到控制器11，控制器11控制左右两件单个阻挡模块1收回，此时汽车12可以顺利通过；在电梯轿厢10离开该层时，电梯控制系统发出信号到控制器11，控制器11控制左右两件单个阻挡模块1开启；
当电梯轿厢10不在该层时，若汽车12继续前行到距电梯层门门洞4一定距离时，测距传感器2检测到汽车12接近防撞板301、此时测距传感器2发信号到控制器11，控制器11经过运算向声光报警器3发出动作信号、使其发出声 光进行报警，以提醒汽车12内的司机停止前行；若司机未将汽车12及时停止，继续向前行驶撞击到左右两侧的防撞板301上，在撞击力的作用下缓冲连杆104被压缩，防撞板301绕防撞板铰座销304转动一定角度，缓冲连杆104被压缩的过程中吸收掉一部分汽车12与防撞板301撞击能量，减少对汽车12的破坏，同防撞板301转动一定角度后左右两件防撞板301的间隙也不足以使汽车12通过。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (11)

  1. 一种汽车电梯用带缓冲的层门防撞阻挡装置，其包括若干个阻挡模块，每个所述阻挡模块包括：安装壳体、安装于所述安装壳体内且具有打开和收起状态的防撞板组件、用于驱动所述防撞板组件打开或收起的滑块连杆机构，其特征在于：所述阻挡模块位于正对层门方向的左侧、右侧或左右两侧，所述滑块连杆机构包括螺纹传动部以及可伸缩的缓冲连杆，所述螺纹传动部包括可移动的传动螺母组件，所述缓冲连杆的两端部分别与所述传动螺母组件以及所述防撞板组件枢轴连接，所述传动螺母组件至少具有两个极限位置，当所述传动螺母组件移动到其中一个极限位置时，所述缓冲连杆打开，此时阻挡汽车通过，当所述传动螺母组件移动到另一个极限位置时，所述缓冲连杆收起汽车通过，此时汽车自由通过；
    所述螺纹传动部包括底座槽钢、传动丝杠座、传动丝杠、万向连轴节以及驱动电机，两个所述丝杠座通过螺栓固定在底座槽钢的两端，传动丝杠两端的轴分别装入传动丝杠座的轴孔内，伸出传动丝杠座的一端通过万向连轴节与驱动电机的输出轴连接，传动螺母组件安装在传动丝杠上并组成具有自锁功能的梯型螺纹副；
    所述螺纹传动部包括传动螺母位置检测板、位置检测开关架、前到位检测开关、后到位检测开关，传动螺母位置检测板安装在传动螺母组件上，前到位检测开关和后到位检测开关分别通过位置检测开关架安装在底座槽钢上，前到位检测开关和后到位检测开关分别对应所述传动螺母组件的两个极限位置；
    传动螺母组件包括传动螺母、承载轮轴板、承载轮、后连杆铰座组成，两个所述承载轮轴板分别安装固定在传动螺母的两侧，每件承载轮轴板上设置两个所述承载轮，后连杆铰座安装固定在传动螺母的顶部，传动螺母位置检测板安装固定在传动螺母上；
    所述防撞板组件包括防撞板、前连杆铰座、防撞板动铰座、防撞板铰座销、防撞板定铰座，防撞板动铰座通过螺栓固定在防撞板的一端，防撞板定铰座通过防撞板铰座销与防撞板动铰座铰接且固定在安装壳体上，前连杆铰座通过螺栓固定在防撞板上；防撞板包括防撞板底板、防止汽车装上防撞板时擦伤的防撞板胶板；
    所述安装壳体包括挡模块架、安装在挡模块架前侧的第一外壳安装板、安装在挡模块架后侧的第二外壳安装板、大外壳、小外壳，大外壳包覆在挡模块架、第一外壳安装板和第二外壳安装板形成的框架后侧以及周侧，小外壳包覆 在前侧的第一外壳安装板上并在防撞板组件的打开路径上形成开口；
    所述阻挡装置包括用于检测是否有汽车行至层站的测距传感器，用于检测轿厢是否在该层站平层的停层检测开关，与所述测距传感器、停层检测开关相电连接且用于控制所述阻挡模块动作的控制器，以及安装于所述安装壳体上的声光报警器；
    所述阻挡模块有两个且呈对称设置，当所述缓冲连杆完全打开时，在撞击力的作用下缓冲连杆被压缩至最大位置时，所述防撞板组件呈八字形分布，且两者最小间距小于汽车宽度。
  2. 一种汽车电梯用带缓冲的层门防撞阻挡装置，其包括若干个阻挡模块，每个所述阻挡模块包括：安装壳体、安装于所述安装壳体内且具有打开和收起状态的防撞板组件、用于驱动所述防撞板组件打开或收起的滑块连杆机构，其特征在于：所述滑块连杆机构包括螺纹传动部以及可伸缩的缓冲连杆，所述螺纹传动部包括可移动的传动螺母组件，所述缓冲连杆的两端部分别与所述传动螺母组件以及所述防撞板组件枢轴连接，所述传动螺母组件至少具有两个极限位置，当所述传动螺母组件移动到其中一个极限位置时，所述缓冲连杆打开，此时阻挡汽车通过，当所述传动螺母组件移动到另一个极限位置时，所述缓冲连杆收起汽车通过，此时汽车自由通过。
  3. 根据权利要求2所述的汽车电梯用带缓冲的层门防撞阻挡装置，其特征在于：所述螺纹传动部包括底座槽钢、传动丝杠座、传动丝杠、万向连轴节以及驱动电机，两个所述丝杠座通过螺栓固定在底座槽钢的两端，传动丝杠两端的轴分别装入传动丝杠座的轴孔内，伸出传动丝杠座的一端通过万向连轴节与驱动电机的输出轴连接，传动螺母组件安装在传动丝杠上并组成具有自锁功能的梯型螺纹副。
  4. 根据权利要求2述的汽车电梯用带缓冲的层门防撞阻挡装置，其特征在于：所述螺纹传动部包括传动螺母位置检测板、位置检测开关架、前到位检测开关、后到位检测开关，传动螺母位置检测板安装在传动螺母组件上，前到位检测开关和后到位检测开关分别通过位置检测开关架安装在底座槽钢上，前到位检测开关和后到位检测开关分别对应所述传动螺母组件的两个极限位置。
  5. 根据权利要求4述的汽车电梯用带缓冲的层门防撞阻挡装置，其特征在于：传动螺母组件包括传动螺母、承载轮轴板、承载轮、后连杆铰座组成，两个所述承载轮轴板分别安装固定在传动螺母的两侧，每件承载轮轴板上设置两 个所述承载轮，后连杆铰座安装固定在传动螺母的顶部，传动螺母位置检测板安装固定在传动螺母上。
  6. 根据权利要求2述的汽车电梯用带缓冲的层门防撞阻挡装置，其特征在于：所述防撞板组件包括防撞板、前连杆铰座、防撞板动铰座、防撞板铰座销、防撞板定铰座，防撞板动铰座通过螺栓固定在防撞板的一端，防撞板定铰座通过防撞板铰座销与防撞板动铰座铰接且固定在安装壳体上，前连杆铰座通过螺栓固定在防撞板上。
  7. 根据权利要求6述的汽车电梯用带缓冲的层门防撞阻挡装置，其特征在于：防撞板包括防撞板底板、防止汽车装上防撞板时擦伤的防撞板胶板。
  8. 根据权利要求1述的汽车电梯用带缓冲的层门防撞阻挡装置，其特征在于：所述安装壳体包括挡模块架、安装在挡模块架前侧的第一外壳安装板、安装在挡模块架后侧的第二外壳安装板、大外壳、小外壳，大外壳包覆在挡模块架、第一外壳安装板和第二外壳安装板形成的框架后侧以及周侧，小外壳包覆在前侧的第一外壳安装板上并在防撞板组件的打开路径上形成开口。
  9. 根据权利要求2述的汽车电梯用带缓冲的层门防撞阻挡装置，其特征在于：所述阻挡装置包括用于检测是否有汽车行至层站的测距传感器，用于检测轿厢是否在该层站平层的停层检测开关，与所述测距传感器、停层检测开关相电连接且用于控制所述阻挡模块动作的控制器，以及安装于所述安装壳体上的声光报警器。
  10. 根据权利要求2述的汽车电梯用带缓冲的层门防撞阻挡装置，其特征在于：所述阻挡模块有两个且呈对称设置，当所述缓冲连杆完全打开时，在撞击力的作用下缓冲连杆被压缩至最大位置时，所述防撞板组件呈八字形分布，且两者最小间距小于汽车宽度。
  11. 一种汽车电梯，其包括曳引机、轿厢、以及配重组件，其特征在于：所述汽车电梯还包括设于层站地面上的阻挡装置，所述阻挡装置为权利要求1-9中任一所述汽车电梯用带缓冲的层门防撞阻挡装置。
PCT/CN2022/134362 2022-02-28 2022-11-25 汽车电梯用带缓冲的层门防撞阻挡装置及汽车电梯 WO2023160059A1 (zh)

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