Anti-collision blocking device with buffer for car lift door and car lift

Abstract

The present invention discloses a buffer-equipped layer door anti-collision blocking device for a car elevator and a car elevator, which comprises a plurality of blocking modules. Each blocking module includes: a mounting housing, an anti-collision plate assembly mounted in the mounting housing and having an open state and a retracted state, and a slider link mechanism for driving the anti-collision plate assembly to open or retract. The slider link mechanism includes a threaded transmission part and a telescopic buffer link. The threaded transmission part includes a movable transmission nut assembly. The two end portions of the buffer link are pivotally connected to the transmission nut assembly and the anti-collision plate assembly respectively. When the car driver operates by mistake, the driver is reminded in advance to stop the vehicle in time. When the vehicle collides with the blocking device without the driver stopping the vehicle in time, it has a certain buffering function to reduce the damage to the vehicle and the passengers in the vehicle.

Description

Technical Field

[0001] The invention belongs to the field of elevator equipment, and in particular relates to a buffered floor door anti-collision blocking device for a car elevator and the car elevator. Background Art

[0002] A car elevator is a special cargo elevator used to transport non-commercial cars, i.e., the private cars we use in daily life. When a private car is waiting for the elevator outside the landing door, due to improper operation by the driver, 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 not only causes damage to the landing door and the private car, but more seriously, the private car crashes into the landing door and rushes into the shaft, causing a bigger accident. Currently, few car elevators on the market are equipped with anti-collision devices for landing doors. Even if they are equipped with anti-collision devices borrowed from other industries (for example, hydraulic and pneumatic lifting columns), on the one hand, the installation workload is large and requires the excavation of a relatively large deep pit. On the other hand, when the car collides with the car due to misoperation, there is no buffer, which is more destructive to the car. Summary of the invention

[0003] The purpose of the present invention is to provide a buffered floor door anti-collision blocking device for a car elevator, which can effectively prevent the car from colliding with the floor door and prevent the car from being damaged.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a buffered floor door anti-collision blocking device for a car elevator, which includes a plurality of blocking modules, each of which includes: an installation shell, an anti-collision plate assembly installed in the installation shell and having an open and retracted state, and a slider connecting rod mechanism for driving the anti-collision plate assembly to open or retract, the slider connecting rod mechanism includes a threaded transmission part and a retractable buffer connecting rod, the threaded transmission part includes a movable transmission nut assembly, the two ends of the buffer connecting rod are respectively pivotally connected to the transmission nut assembly and the anti-collision plate assembly, the transmission nut assembly has two extreme positions, when the transmission nut assembly moves to one of the extreme positions, the buffer connecting rod is opened, at this time blocking the car from passing, when the transmission nut assembly moves to the other extreme position, the buffer connecting rod retracts the car from passing, and the car can pass freely at this time.

[0005] Optimized, the threaded transmission part includes a base channel steel, a transmission screw seat, a transmission screw, a universal joint and a driving motor. The two screw seats are fixed to the two ends of the base channel steel by bolts, and the shafts at both ends of the transmission screw are respectively inserted into the shaft holes of the transmission screw seat. One end of the shaft extending out of the transmission screw seat is connected to the output shaft of the driving motor through a universal joint. The transmission nut assembly is installed on the transmission screw and forms a trapezoidal thread pair with a self-locking function.

[0006] Further, the screw drive part includes a drive nut position detection plate, a position detection switch bracket, a front in-place detection switch, and a rear in-place detection switch. The drive nut position detection plate is installed on the drive nut assembly. The front in-place detection switch and the rear in-place detection switch are respectively installed on the base channel steel through the position detection switch bracket, and the front in-place detection switch and the rear in-place detection switch respectively correspond to two limit positions of the drive nut assembly.

[0007] Furthermore, the drive nut assembly includes a drive nut, a carrier wheel shaft plate, carrier wheels, and a rear connecting rod hinge seat. The two carrier wheel shaft plates are respectively installed and fixed on both sides of the drive nut. Two of the carrier wheels are arranged on each carrier wheel shaft plate. The rear connecting rod hinge seat 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.

[0008] Optimally, the anti-collision plate assembly includes an anti-collision plate, a front connecting rod hinge seat, a movable anti-collision plate hinge seat, an anti-collision plate hinge pin, and a fixed anti-collision plate hinge seat. The movable anti-collision plate hinge seat is fixed to one end of the anti-collision plate by bolts. The fixed anti-collision plate hinge seat is hinged to the movable anti-collision plate hinge seat through the anti-collision plate hinge pin and is fixed on the installation housing. The front connecting rod hinge seat is fixed to the anti-collision plate by bolts.

[0009] Further, the anti-collision plate includes an anti-collision plate bottom plate and an anti-collision plate rubber plate for preventing the car from being scratched when hitting the anti-collision plate.

[0010] Optimally, the installation housing includes a blocking module frame, a first outer shell mounting plate installed on the front side of the blocking module frame, a second outer shell mounting plate installed on the rear side of the blocking module frame, a large outer shell, and a small outer shell. The large outer shell covers the rear side and the peripheral side of the frame formed by the blocking module frame, the first outer shell mounting plate, and the second outer shell mounting plate. The small outer shell covers the first outer shell mounting plate on the front side and forms an opening on the opening path of the anti-collision plate assembly.

[0011] Optimally, the blocking device includes a ranging sensor for detecting whether a car arrives at the landing, a stop detection switch for detecting whether the car is leveled at the landing, a controller electrically connected to the ranging sensor and the stop detection switch and used for controlling the action of the blocking module, and an audible and visual alarm installed on the installation housing.

[0012] Optimally, there are two blocking modules and they are symmetrically arranged. When the buffer connecting rod is fully opened and is compressed to the maximum position under the action of the impact force, 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.

[0013] The present invention also provides an automobile elevator, which includes a traction machine, a car, and a counterweight assembly. The automobile elevator further includes a blocking device provided on the landing floor. The blocking device is the above-mentioned layer door anti-collision blocking device with a buffer for an automobile elevator.

[0014] The beneficial effects of the present invention are as follows: The present invention has an early warning function. When the driver of the vehicle makes a wrong operation, it can remind the driver to stop the vehicle in time in advance. When the vehicle fails to stop in time and collides with the blocking device, it has a certain buffering function to reduce the damage to the vehicle and the passengers in the vehicle. Brief Description of the Drawings

[0015] Figure 1 General layout schematic diagram of the anti-collision blocking device;

[0016] Figure 2 Three-dimensional schematic diagram of a single blocking module;

[0017] Figure 3 Three-dimensional schematic diagram of a single blocking module after removing the outer shell plate;

[0018] Figure 4 Structural schematic diagram of a single blocking module after removing the outer shell plate and the outer shell mounting plate;

[0019] Figure 5 Three-dimensional schematic diagram of the screw drive part;

[0020] Figure 6 Three-dimensional schematic diagram of the anti-collision plate assembly;

[0021] Figure 7 Three-dimensional schematic diagram of the transmission nut assembly;

[0022] Figure 8 Cross-sectional structural schematic diagram of the anti-collision plate;

[0023] Figure 9 Schematic diagram when the buffer link is fully compressed;

[0024] Figure 10 Schematic diagram when the anti-collision plate is retracted;

[0025] Wherein: 1 - single blocking module, 2 - ranging sensor, 3 - audible and visual alarm, 4 - elevator landing door opening, 5 - elevator shaft, 6 - floor stop detection switch, 7 - detection switch bracket, 8 - elevator guide rail, 9 - detection switch board, 10 - car, 11 - controller, 12 - vehicle, 101 - large outer shell, 102 - small outer shell, 103 - anti-collision plate assembly, 104 - buffer connecting rod, 105 - blocking module bracket, 106 - driving motor, 107 - universal coupling, 108 - threaded transmission part, 109 - front connecting rod pin shaft, 110 - rear connecting rod pin shaft, 111 - inner and outer shell mounting plate, 112 - outer outer shell mounting plate, 301 - anti-collision plate, 302 - front connecting rod hinge seat, 303 - anti-collision plate moving hinge seat, 304 - anti-collision plate hinge seat pin, 305 - anti-collision plate fixed hinge seat, 801 - base channel steel, 802 - transmission lead screw seat, 803 - transmission nut assembly, 804 - position detection switch bracket, 805 - front in-place detection switch, 806 - transmission nut position detection plate, 807 - transmission lead screw, 808 - rear in-place detection switch, 8031 - transmission nut, 8032 - carrier wheel shaft plate, 8033 - carrier wheel, 8034 - rear connecting rod hinge seat, 3011 - anti-collision plate bottom plate, 3012 - anti-collision plate rubber plate. Specific implementation mode

[0026] The following describes the present invention in detail with reference to the embodiments shown in the accompanying drawings:

[0027] The vehicle elevator includes a traction machine, a car, a counterweight assembly, and a buffer-equipped landing anti-collision blocking device for vehicle elevators provided on the landing floor. The traction machine, car, and counterweight assembly are not the focus of this application and will not be elaborated here.

[0028] As Figures 1-10 shown, the buffer-equipped landing anti-collision blocking device for vehicle elevators includes a plurality of blocking modules 1, a ranging sensor 2 for detecting whether a vehicle has reached the landing, a floor stop detection switch 6 for detecting whether the car 10 is level at this landing, a controller 11 electrically connected to the ranging sensor 2 and the floor stop detection switch 6 and used to control the action of the blocking module 1, and an audible and visual alarm 3.

[0029] In this embodiment, there are two blocking modules and they are symmetrically arranged. Each blocking module 1 includes: a mounting housing 100, an anti-collision plate assembly 103 installed in the mounting housing 100 and having an open and retracted state, and a slider link mechanism for driving the anti-collision plate assembly 103 to open or retract.

[0030] The slider-link mechanism includes a screw drive part 108 and a telescopic buffer link 104. The buffer link 104 has a hydraulic and / or spring buffer self-resetting function. The screw drive part 108 includes a movable drive nut assembly 803. The two end parts of the buffer link 104 are pivotally connected to the drive nut assembly 803 and the anti-collision plate assembly 103 respectively. The drive nut assembly 803 has two extreme positions. When the drive nut assembly 803 moves to one of the extreme positions, the buffer link 104 opens, blocking the passage of the vehicle at this time. When the drive nut assembly 803 moves to the other extreme position, the buffer link 104 retracts and the vehicle passes through. At this time, the vehicle can pass freely.

[0031] The screw drive part 108 includes a base channel steel 801, a drive screw seat 802, a drive nut assembly 803, a position detection switch bracket 804, a front in-place detection switch 805, a drive nut position detection plate 806, a drive screw 807, a rear in-place detection switch 808, a universal coupling 107 and a drive motor 106. Two drive screw seats 802 are fixed at both ends of the base channel steel 801 by bolts. The shafts at both ends of the drive screw 807 are respectively inserted into the shaft holes of the two drive screw seats 802. One end of the shaft extending out of the drive screw seat 802 will be connected to the output shaft of the drive motor 106 through the universal coupling 107. The drive nut assembly 803 is installed on the drive screw 807 and forms a trapezoidal thread pair with a self-locking function. When the drive screw 807 rotates, the drive nut assembly 803 moves back and forth along the axial direction of the drive screw 807. The drive nut position detection plate 806 is fixed on the drive nut assembly 803. Two position detection switch brackets 804 are arranged on the side of the base channel steel 801. The front in-place detection switch 805 is installed on the position detection switch bracket 804 close to the drive motor 106 side, and the rear in-place detection switch 808 is installed on the other position detection switch bracket 804. The drive nut assembly 803 is composed of a drive nut 8031, a carrier wheel shaft plate 8032, a carrier wheel 8033, and a rear link hinge seat 8034. Two carrier wheel shaft plates 8032 are respectively installed and fixed on both sides of the drive nut 8031. Two carrier wheels 8033 are installed on each carrier wheel shaft plate 8032. The rear link hinge seat 8034 is installed and fixed on the top of the drive nut 8031. The drive nut position detection plate 806 is installed and fixed on the drive nut 8031.

[0032] The anti-collision plate assembly 103 includes an anti-collision plate 301, a front connecting rod hinge seat 302, an anti-collision plate movable hinge seat 303, an anti-collision plate hinge seat pin 304, and an anti-collision plate fixed hinge seat 305; the anti-collision plate movable hinge seat 303 is fixed to one end of the anti-collision plate 301 by bolts, the anti-collision plate fixed hinge seat 305 is hinged to the anti-collision plate movable hinge seat 303 by the anti-collision plate hinge seat pin 304, and the front connecting rod hinge seat 302 is fixed to a position near the middle of the anti-collision plate 301 by bolts; when the anti-collision plate fixed hinge seat 305 is fixed to the blocking module frame 105, the anti-collision plate 301 can rotate around the anti-collision plate hinge seat pin 304; wherein the anti-collision plate 301 is composed of an anti-collision plate bottom plate 3011 and an anti-collision plate rubber plate 3012, the anti-collision plate bottom plate 3011 gives the anti-collision plate 301 sufficient strength, and the anti-collision plate rubber plate 3012 is pasted or cast on the anti-collision plate bottom plate 3011 to have a certain protective effect when the vehicle 12 hits the anti-collision plate 301.

[0033] The installation housing includes a blocking module frame 105, a first outer housing mounting plate 112 mounted on the front side of the blocking module frame, a second outer housing mounting plate 111 mounted on the rear side of the blocking module frame, a large outer housing 101, and a small outer housing 102. The anti-collision plate fixed hinge seat 305 is fixed to the blocking module frame 105, the base channel steel 801 is fixed to the blocking module frame 105, the large outer housing 101 covers the rear side and the peripheral side of the frame formed by the blocking module frame 105, the first outer housing mounting plate 112 and the second outer housing mounting plate 111, and the small outer housing 102 covers the first outer housing mounting plate 112 on the front side and forms an opening on the opening path of the anti-collision plate assembly. Wherein the large outer housing 101 and the small outer housing 102 are the outermost structures of a single blocking module, which protect the internal transmission structure from being directly exposed to the outside and being affected by wind and rain, and improve the aesthetics of a single blocking module.

[0034] The distance measuring sensor 2 is provided on the anti-collision plate 301 of a single blocking module 1, the audible and visual alarm 3 is provided on the top of the blocking module large outer housing 101 of a single blocking module 1, the stop layer detection switch 6 is provided in the elevator shaft 5 and is installed on the elevator guide rail 8 through the detection switch bracket 7, the detection switch board 9 is provided on the elevator car 10, and the controller 11 is provided in the elevator shaft 5.

[0035] The opening and retracting principles of a single blocking module 1 are as follows: When the driving motor 106 is powered on upon receiving a signal, it rotates forward / backward. The rotation and power are transmitted to the transmission lead screw 807 through the universal coupling 107. The rotation on the transmission lead screw 807 is converted into the movement of the transmission nut assembly 803 through the trapezoidal thread pair composed of the transmission lead screw 807 and the transmission nut assembly 803. While the transmission nut assembly 803 moves, it drives the rear end of the buffer connecting rod 104 to move. Then, the front end of the buffer connecting rod 104 pushes the anti-collision plate 301 to rotate around the anti-collision plate hinge seat pin 304. When fully opened, the anti-collision plate 301 forms a 90-degree angle with the base channel steel 801. At this time, the transmission nut position detection plate 806 just triggers the front in-place detection switch 805, and the front in-place detection switch 805 sends a signal to stop the driving motor 106. When fully retracted, the anti-collision plate 301 is parallel to the base channel steel 801. At this time, the transmission nut position detection plate 806 just triggers the rear in-place detection switch 808, and the rear in-place detection switch 808 sends a signal to stop the driving motor 106. The buffer connecting rod 104 has a buffering and spring self-resetting function. Under the action of the spring force, when the single blocking module 1 is opened and retracted, it maintains a fully extended state.

[0036] When the elevator car 10 is not leveled at this floor: When the elevator is not leveled at this floor, the elevator control system will not send a signal to the controller 11. At this time, the two sets of single blocking modules 1 in front of the elevator landing door opening 4 on this floor remain in the open state.

[0037] When the elevator car 10 is leveled at this floor: The elevator control system sends a signal to the controller 11. When the elevator is leveled at this floor, and at this time, the stop layer detection switch 6 set on the elevator car 10 is actuated and sends a signal to the controller 11. The controller 11 controls the left and right single blocking modules 1 to retract. At this time, the vehicle 12 can pass smoothly. When the elevator car 10 leaves this floor, the elevator control system sends a signal to the controller 11, and the controller 11 controls the left and right single blocking modules 1 to open.

[0038] When the elevator car 10 is not at this floor, if the vehicle 12 continues to move forward to a certain distance from the elevator landing door opening 4, the distance measuring sensor 2 detects that the vehicle 12 is approaching the anti-collision plate 301. At this time, the distance measuring sensor 2 sends a signal to the controller 11. The controller 11 sends an action signal to the sound and light alarm 3 through calculation to make it emit sound and light for alarm to remind the driver in the vehicle 12 to stop moving forward. If the driver does not stop the vehicle 12 in time and continues to drive forward and hits the anti-collision plates 301 on both sides, under the action of the impact force, the buffer connecting rod 104 is compressed, and the anti-collision plate 301 rotates around the anti-collision plate hinge seat pin 304 by a certain angle. During the process of the buffer connecting rod 104 being compressed, a part of the impact energy between the vehicle 12 and the anti-collision plate 301 is absorbed, reducing the damage to the vehicle 12. After the anti-collision plate 301 rotates by a certain angle, the gap between the left and right anti-collision plates 301 is not enough for the vehicle 12 to pass through.

[0039] The above embodiments are only used to illustrate the technical concept and features of the present invention. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and it should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A buffer-equipped landing door anti-collision blocking device for a car elevator, which comprises a plurality of blocking modules, and each of the blocking modules includes: An installation housing, a collision avoidance plate assembly installed within the installation housing and having an open and a retracted state, and a slider link mechanism for driving the collision avoidance plate assembly to open or retract, characterized in that: the slider link mechanism includes a threaded transmission part and a telescopic buffer link, the threaded transmission part includes a movable transmission nut assembly, and both ends of the buffer link are pivotally connected to the transmission nut assembly and the collision avoidance plate assembly respectively. The transmission nut assembly has two extreme positions. When the transmission nut assembly moves to one of the extreme positions, the buffer link opens and blocks the passage of the vehicle at this time. When the transmission nut assembly moves to the other extreme position, the buffer link retracts and the vehicle passes through, and the vehicle can pass freely at this time; The threaded transmission part includes a transmission nut position detection plate, a position detection switch bracket, a front in-place detection switch, and a rear in-place detection switch. The transmission nut position detection plate is installed on the transmission nut assembly. The front in-place detection switch and the rear in-place detection switch are respectively installed on the base channel steel through the position detection switch bracket, and the front in-place detection switch and the rear in-place detection switch respectively correspond to the two extreme positions of the transmission nut assembly; The transmission nut assembly includes a transmission nut, a carrier wheel shaft plate, carrier wheels, and a rear link hinge seat. The two carrier wheel shaft plates are respectively installed and fixed on both sides of the transmission nut. Two of the carrier wheels are provided on each carrier wheel shaft plate. The rear link hinge seat is installed and fixed on the top of the transmission nut, and the transmission nut position detection plate is installed and fixed on the transmission nut; The collision avoidance plate assembly includes a collision avoidance plate, a front link hinge seat, a moving hinge seat of the collision avoidance plate, a hinge pin of the collision avoidance plate, and a fixed hinge seat of the collision avoidance plate. The moving hinge seat of the collision avoidance plate is fixed to one end of the collision avoidance plate by bolts. The fixed hinge seat of the collision avoidance plate is hinged to the moving hinge seat of the collision avoidance plate through the hinge pin of the collision avoidance plate and is fixed on the installation housing. The front link hinge seat is fixed to the collision avoidance plate by bolts; The installation housing includes a baffle module frame, a first outer shell mounting plate installed on the front side of the baffle module frame, a second outer shell mounting plate installed on the rear side of the baffle module frame, a large outer shell, and a small outer shell. The large outer shell covers the rear side and the peripheral side of the frame formed by the baffle module frame, the first outer shell mounting plate, and the second outer shell mounting plate. The small outer shell covers the first outer shell mounting plate on the front side and forms an opening on the opening path of the collision avoidance plate assembly.

2. The buffer-equipped landing door anti-collision blocking device for automobile elevators according to claim 1, characterized in that: The threaded transmission part includes a base channel steel, a transmission lead screw seat, a transmission lead screw, a universal coupling, and a driving motor. The two lead screw seats are fixed to both ends of the base channel steel by bolts. The shafts at both ends of the transmission lead screw are respectively inserted into the shaft holes of the transmission lead screw seats. One end of the shaft extending out of the transmission lead screw seat is connected to the output shaft of the driving motor through a universal coupling. The transmission nut assembly is installed on the transmission lead screw and forms a trapezoidal thread pair with a self-locking function.

3. The buffer-equipped door anti-collision blocking device for automotive elevators according to claim 1, wherein: The collision avoidance plate includes a collision avoidance plate bottom plate and a collision avoidance plate rubber plate for preventing the vehicle from being scratched when hitting the collision avoidance plate.

4. The buffer-equipped landing door anti-collision blocking device for automotive elevators according to claim 1, characterized in that: The blocking device includes a ranging sensor for detecting whether a vehicle arrives at the landing, a stop detection switch for detecting whether the car is leveled at the landing, a controller electrically connected to the ranging sensor and the stop detection switch and used for controlling the action of the blocking module, and an audible and visual alarm installed on the installation housing.

5. The buffer-equipped door anti-collision blocking device for automotive elevators according to claim 1, characterized in that: There are two blocking modules which are symmetrically arranged. When the buffer link is fully opened and compressed to the maximum position under the action of the impact force, the anti-collision plate assembly is distributed in a V shape, and the minimum distance between the two is less than the width of the vehicle.

6. An automotive elevator, comprising a traction machine, a car, and a counterweight assembly, characterized in that: The car elevator further includes a blocking device provided on the landing ground, and the blocking device is the buffer-equipped landing door anti-collision blocking device for car elevators according to any one of claims 1-5.

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