accessible elevator

Abstract

This utility model relates to a barrier-free elevator, including a panel assembly and a drive unit fixed to the car floor. The panel assembly includes a base plate, a cover plate, and a sliding plate. The base plate is fixed to the car floor, and the cover plate is fixed to the base plate. The sliding plate includes a sliding plate body and a pair of support plates. The sliding plate body is matched with the base plate via a track structure and is located between the base plate and the cover plate. The drive unit is fixed to the rear side of the base plate, located between the base plate and the cover plate, and matched with the sliding plate body, capable of driving the sliding plate to move back and forth relative to the base plate. Multiple straight grooves are formed on the cover plate, arranged alternately on the left and right sides. The straight grooves extend in the front and back direction and have open front ends. Support plates corresponding to the straight grooves are formed on the sliding plate body, and the two support plates are fixed to the support plates alternately on the left and right sides, with the upper end surface of the support plates not lower than the upper end surface of the cover plate. This utility model can assist wheelchair passengers to smoothly exit the car, helping to improve the riding experience of wheelchair passengers and enhance convenience and safety.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to a barrier-free elevator. Background Technology

[0002] To enable wheelchair passengers to use elevators without barriers, a control panel is typically installed low inside the elevator car for wheelchair access. Braille buttons are also provided on the control panel to further facilitate use by the visually impaired. However, existing accessibility facilities only address the issue of floor selection.

[0003] Most standard elevator cars have a relatively small interior space compared to the minimum area required for a wheelchair passenger to turn around (approximately 1400mm x 1600mm), making it very difficult for wheelchair passengers to turn around and exit the elevator. Therefore, wheelchair passengers currently mostly exit the elevator by backing out. Furthermore, the difference between the width of the standard elevator car door and the width of a standard wheelchair is approximately 25cm to 40cm, with larger door widths found in large shopping malls or hospitals. Additionally, the opening and closing interval of the elevator doors is generally around 5 seconds. Therefore, wheelchair passengers often enter and exit the elevator car hastily, making it difficult to align their wheelchair with the door in a short time, frequently resulting in collisions with the door frame and difficulty passing through smoothly in one go. Thus, existing standard (sized) elevators provide a poor experience for wheelchair passengers exiting the car, are very inconvenient, and can easily cause wheelchair passengers to get caught in the door, posing a double danger to both the passenger and the elevator. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a barrier-free elevator that assists wheelchair passengers in smoothly retracting out of the elevator car, thereby improving their riding experience, convenience, and safety.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a barrier-free elevator, including a plate assembly and a drive unit fixedly installed on the car floor.

[0006] The assembly includes a base plate, a cover plate, and a sliding plate. The base plate is fixed to the upper part of the car floor, and the cover plate is fixed to the upper part of the base plate. The sliding plate includes a sliding plate body and a pair of support plates. The sliding plate body is matched with the base plate by a track structure arranged in the front-rear direction and is located between the base plate and the cover plate. A drive unit is fixed to the rear side of the base plate, located between the base plate and the cover plate, and matched with the sliding plate body, and can drive the sliding plate to move relative to the base plate in the front-rear direction. Therefore, a cavity structure is formed between the opposing surfaces of the base plate and the cover plate to fully accommodate the sliding plate body, the drive unit, etc.

[0007] Multiple straight grooves are formed on the cover plate, arranged alternately on the left and right sides. The straight grooves extend in the front-to-back direction and are open at the front end. Support plates are formed on the slide plate body, which correspond to the straight grooves one by one, and the two support plates are fixed to the support plates alternately on the left and right sides, and the upper end surface of the support plate is not lower than the upper end surface of the cover plate.

[0008] Optionally, the plate assembly also includes a mask fixed to the upper surface of the cover plate. The upper surface of the support plate is not lower than the upper surface of the mask.

[0009] Optionally, an anti-slip layer is fixedly covered on the upper surface of the tray. When no cover is provided, the upper surface of the anti-slip layer is not lower than the upper surface of the cover plate; when a cover is provided, the upper surface of the anti-slip layer is not lower than the upper surface of the cover.

[0010] Optionally, the anti-slip layer is made of an elastic material and the thickness of the anti-slip layer does not exceed 5mm.

[0011] Optionally, the drive unit includes a lead screw cylinder, with the main body of the lead screw cylinder fixed between the base plate and the cover plate, and the cylinder rod of the lead screw cylinder axially fixedly connected to the front end of the slide plate body in the front-back direction. By controlling the cylinder rod of the lead screw cylinder to extend or retract, the slide plate body can be dragged relative to the base plate and the cover plate in the front-back direction.

[0012] Optionally, multiple horizontal plates are provided on the front side of the upper end of the skateboard body, and the vertical height of the horizontal plates is less than the vertical height of the supporting upright plate. The multiple horizontal plates are distributed alternately front and back. The end of the screw cylinder is fixedly connected to the horizontal plates.

[0013] Optionally, multiple curved notches with curved inner bottom surfaces are formed on the upper end face of the cross plate, and the multiple curved notches are distributed alternately on the left and right sides. Curved protrusions corresponding to and matching the curved notches are provided on the lower end face of the cover plate, and the curved protrusions extend in the front-back direction. The lower curved surface of the curved protrusion contacts and matches the bottom curved surface of the curved notch.

[0014] Optionally, a matching groove structure is provided between the upper end face of the cover plate and the lower end face of the support plate.

[0015] The beneficial effects of this utility model are: the barrier-free elevator provided by this utility model can help wheelchair passengers smoothly back out of the elevator car, which helps to improve the riding experience of wheelchair passengers, improve convenience and safety. Attached Figure Description

[0016] Figure 1 This is a top view of the car's bottom structure.

[0017] Figure 2 This is a top view of the structure when the base plate and the sliding plate are matched and placed on the car floor.

[0018] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure at point AA.

[0019] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point I in the middle.

[0020] Figure 5 This is a schematic diagram showing the state when the sliding plate slides out of the car relative to the base plate.

[0021] In the diagram: 10 Car floor plate; 20 Base plate, 21 Rail groove, 22 Multi-stage countersunk hole; 30 Cover plate, 31 Shaped groove, 311 Arc-shaped protrusion, 32 Straight groove, 33 Protrusion column, 34 Screw; 40 Slide plate, 41 Slide plate body, 411 Protrusion rail, 412 Support plate, 413 Horizontal plate, 414 Arc-shaped notch, 42 Support plate, 421 Anti-slip layer; 50 Cover plate; 60 Drive unit. Detailed Implementation

[0022] The structures, proportions, and sizes shown in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0023] like Figures 1 to 5 The illustrated barrier-free elevator includes a panel assembly and a drive unit 60 fixedly mounted on the car floor 10. The panel assembly includes a base plate 20, a cover plate 30, a sliding plate 40, and a covering plate 50. In the prior art, a covering plate 50 is provided on the car floor 10, and the covering plate 50 is often made of wood. Therefore, strictly speaking, the innovative panel assembly structure of this utility model includes a base plate 20, a cover plate 30, and a sliding plate 40.

[0024] The base plate 20 is fixedly connected to the car floor 10, and the cover plate 30 is fixed above the base plate 20. The slide plate 40 includes a slide plate body 41 and a pair of support plates 42. For ease of assembly, the slide plate body 41 and the support plates 42 are designed to be detachably assembled, such as by being fixed with studs as shown in the figure. The cover plate 30 is fixedly connected to the base plate 20 by screws 34. To ensure the stability and reliability of the base plate 20 and the cover plate 30 after they are connected together, a plurality of multi-stage countersunk holes 22 are formed on the upper end face of the base plate 20, and the inner section of the multi-stage countersunk holes 22 is formed as a threaded hole; at the same time, a protrusion 33 is formed on the lower end face of the cover plate 30, which corresponds one-to-one with the multi-stage countersunk holes 22, and the protrusion 33 can extend into the upper port of the multi-stage countersunk holes 22 to form a surface contact matching relationship. The upper smooth section of the screw 34 corresponds to the through hole of the smooth column provided at the protrusion 33, and the lower part corresponds to the threaded hole of the multi-stage countersunk hole 22.

[0025] The skateboard body 41 is matched with the base plate 20 by a track structure arranged in the front-to-back direction and is disposed between the base plate 20 and the cover plate 30. Specifically, a plurality of track grooves 21 are distributed on the upper end surface of the base plate 20, arranged alternately in the left and right directions, and the track grooves 21 extend in the front-to-back direction; correspondingly, a convex rail 411 is formed on the lower end surface of the skateboard body 41, which corresponds to and matches the track grooves 21. To reduce the overall thickness of the board assembly, a groove 31 can be formed on the lower end surface of the cover plate 30, and the upper part of the skateboard body 41 extends into the groove 31. Obviously, at least the width (left-to-right dimension) of the skateboard body 41 is required to be smaller than the width of the cover plate 30 and the base plate 20.

[0026] The drive unit 60 is fixed to the rear side of the base plate 20, located between the base plate 20 and the cover plate 30, and matched with the slide plate body 41, thereby driving the slide plate 40 to move relative to the base plate 20 in the front-back direction. A U-shaped opening structure is formed at the rear part of the slide plate body 41 (at the center of its width), and this U-shaped opening structure is vertically continuous, forming a clearance slot structure for the drive unit 60 to be placed between the base plate 20 and the cover plate 30. The drive unit 60 is a lead screw cylinder (also known as a ball screw electric cylinder or ball screw cylinder, etc.). The axis of the lead screw cylinder is arranged in the front-back direction, and the end of the cylinder rod is fixedly connected to the front part of the slide plate body 41 (to a horizontal plate 413 in the figure, located at the front part of the slide plate body 41). The body of the lead screw cylinder is fixed between the base plate 20 and the cover plate 30, that is, a cavity space for accommodating the body of the lead screw cylinder is formed between the opposite surfaces of the two plates. As the cylinder rod of the lead screw cylinder extends and retracts, it smoothly pushes the slide plate 40 relative to the base plate 30 and the cover plate 30 to move in the front-to-back direction, causing the front part of the slide plate 40 to retract into the car (see...). Figure 1 , Figure 2 (as shown) and extends forward and outward from the car (see...) Figure 5 (As shown).

[0027] To create a strong support and rigidity structure between the substrate 20 and the cover plate 30, and to effectively prevent significant and irreversible deformation of the cover plate 30 under long-term pressure, which would adversely affect the sliding action of the slide plate 40, a matching groove structure can be provided between the opposing surfaces of the slide plate body 41 and the cover plate 30. This improves the smoothness and stability of the sliding action of the slide plate body 41 relative to the substrate 20 and the cover plate 30, and also enhances the overall robustness, strength, and load-bearing capacity of the entire assembly.

[0028] Multiple straight grooves 32 are formed on the cover plate 30, arranged alternately on the left and right sides. The straight grooves 32 extend in the front-back direction and have open front ends. The slide body 41 has support plates 412 that correspond one-to-one with the straight grooves 32, and two support plates 42 are fixed on the support plates 412 alternately on the left and right sides, and the upper end surface of the support plate 42 is not lower than the upper end surface of the cover plate 30.

[0029] See Figure 1 , Figures 3 to 4As shown, a mask 50 is fixedly provided on the upper end face of the cover plate 30, and the upper end face of the support plate 42 is flush with the upper end face of the mask 50. Alternatively, the upper end face of the support plate 42 can protrude upwards relative to the upper end face of the mask 50. If the mask 50 is not provided, the upper end face of the support plate 42 is either flush with the upper end face of the cover plate 30 or protrudes upwards relative to the upper end face of the cover plate 30, with the protrusion height controlled within 2mm to 5mm.

[0030] If the upper surface of the tray 42 protrudes upward relative to the upper surface of the cover plate 50 or the upper surface of the cover plate 30, it is preferable to provide an elastic anti-slip layer 421 on the upper surface of the tray 42, and the protrusion height is mainly the thickness of the anti-slip layer.

[0031] When the cover plate 50 is provided, a clearance groove structure corresponding one-to-one with the two support plates 42 is formed on the cover plate 50. When the slide plate 40 is held in the retracted state inside the car (e.g. Figure 1 (As shown). The tray 42 can be placed exactly into the two clearance channel structures, so that the bottom / ground of the car is formed as a flat surface (without significant pits or grooves).

[0032] The extension length of the support plate 412 in the front-to-back direction is not greater than the extension length of the straight groove 32. The support plate 412 can extend out of the straight groove 32 from the open front end of the straight groove 32, that is, the support plate 412 can reciprocate relative to the open front end of the straight groove 32. In addition, the lateral width between the two support plates 42 provided above the slide body 41 is less than the opening width L of the car door, and preferably the two support plates 42 are located at the center of the opening width of the car door.

[0033] When a wheelchair passenger enters the elevator car, they simply need to position their wheelchair wheels on the two support plates 42. Inside the elevator car, a control button is preferably located on the rear wall. This button activates the drive unit 60, causing the slide plate 40 to move forward relative to the base plate 20 and extend outside the elevator car. After remaining stationary for a few seconds, the drive unit 60 automatically restarts, causing the slide plate 40 to move backward relative to the base plate 20 and retract into the elevator car. Therefore, the technical solution of this application helps to provide convenience and ease for wheelchair passengers using elevators, effectively assisting them in smoothly retracting out of the elevator car, improving their riding experience, and enabling them to quickly and safely retract out of the elevator.

[0034] The focus of this utility model is on the composition of the mechanical structure, its relative arrangement, and the realization of its motion trajectory. The design of the control system / controller / integrated circuit, operation panel, etc., related to fully achieving the purpose of this application can be implemented with reference to existing technologies and will not be elaborated upon.

[0035] To improve the rigidity and strength of the skateboard body 41, multiple horizontal plates 413 are provided on the front side of the upper end of the skateboard body 41, and the vertical height of the horizontal plates 413 is less than the vertical height of the supporting upright plate 412. The multiple horizontal plates 413 are distributed alternately front and back. The end of the cylinder rod of the lead screw cylinder is fixedly connected to the horizontal plates 413.

[0036] Multiple arc-shaped notches 414 with arc-shaped inner bottom surfaces are formed on the upper end surface of the horizontal plate 413, and the multiple arc-shaped notches 414 are distributed alternately on the left and right sides. Correspondingly, arc-shaped protrusions 311 are provided on the lower end surface of the cover plate 30, each arc-shaped protrusion 311 extending in the front-rear direction. The lower outward arc surface of the arc-shaped protrusion 311 contacts and matches the bottom concave arc surface of the arc-shaped notch 414. By distributing the horizontal plate 413 on the upper end surface of the slide body 41 and distributing the arc-shaped protrusions 311 on the lower end surface of the cover plate 30, a support is formed between the opposing surfaces of the slide body 41 and the cover plate 30, which increases the load-bearing capacity of the slide plate 40 and makes it slide back and forth steadily and reliably between the base plate 20 and the cover plate 30. Furthermore, by utilizing the curved surface contact matching relationship between the arc-shaped protrusion 311 and the arc-shaped notch 414, the relative frictional resistance can be reduced, thereby reducing the difficulty of driving the slide plate 40 to move relative to the substrate 20 and improving the smoothness of reciprocating motion.

[0037] While ensuring that the slide body 41 and the support plate 42 can slide smoothly relative to the base plate 20 and the cover plate 30, a strong support and rigidity structure is formed between the base plate 20 and the cover plate 30 at the location where the slide 40 is located. This effectively prevents the cover plate 30 in this area from undergoing significant and irreversible deformation under long-term pressure, which would adversely affect the sliding action of the slide 40. Figure 4 As shown, a matching groove structure is provided between the upper end face of the cover plate 30 and the lower end face of the support plate 42. Specifically, a straight groove for accommodating the support plate 42 is formed on the upper end face of the cover plate 30, and the front end of the straight groove is open. The lower end face of the support plate 42 is opposite to the bottom surface of the straight groove, and at least a plurality of alternating left and right protrusions are distributed on the bottom surface of the straight groove, with the length of the protrusions extending in the front-back direction. The plurality of protrusions are distributed alternately left and right, and a line-surface contact matching is formed between the opposite end faces of the support plate 42 and the straight groove.

[0038] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit it. Many aspects of this utility model can be improved without departing from the overall concept. Those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A barrier-free elevator, characterized in that: It includes a plate assembly and a drive unit (60) fixed on the car floor (10); the plate assembly includes a base plate (20), a cover plate (30) and a slide plate (40); the base plate (20) is fixedly connected to the car floor (10), and the cover plate (30) is fixed above the base plate (20); the slide plate (40) includes a slide plate body (41) and a pair of support plates (42); The skateboard body (41) is matched with the base plate (20) by a track structure arranged in the front-back direction and is located between the base plate (20) and the cover plate (30); the drive unit (60) is fixed on the rear side of the base plate (20), located between the base plate (20) and the cover plate (30) and matched with the skateboard body (41), and can drive the skateboard (40) to move relative to the base plate (20); Multiple straight grooves (32) are formed on the cover plate (30) in alternating left and right directions; the straight grooves (32) extend in the front and back direction and are open at the front end; the slide body (41) has a support plate (412) that corresponds to the straight grooves (32) and the two support plates (42) are fixed on the support plate (412) in alternating left and right directions, and the upper end surface of the support plate (42) is not lower than the upper end surface of the cover plate (30).

2. The barrier-free elevator according to claim 1, characterized in that: The plate assembly also includes a cover plate (50) fixed on the upper surface of the cover plate (30); the upper surface of the support plate (42) is not lower than the upper surface of the cover plate (50).

3. The barrier-free elevator according to claim 1 or 2, characterized in that: An anti-slip layer (421) is fixedly covered on the upper surface of the tray (42); the upper surface of the anti-slip layer (421) is not lower than the upper surface of the cover plate (30) or not lower than the upper surface of the mask plate (50).

4. The barrier-free elevator according to claim 3, characterized in that: The anti-slip layer (421) is made of elastic material and the thickness of the anti-slip layer (421) does not exceed 5 mm.

5. The barrier-free elevator according to claim 1, characterized in that: The drive unit (60) includes a lead screw cylinder and fixes the body of the lead screw cylinder between the base plate (20) and the cover plate (30). The cylinder rod is axially along the front-rear direction and is fixedly connected to the front end of the slide body (41).

6. The barrier-free elevator according to claim 5, characterized in that: Multiple horizontal plates (413) are provided on the front side of the upper end of the skateboard body (41), and the height of the horizontal plates (413) is less than the height of the supporting upright plate (412); the multiple horizontal plates (413) are distributed alternately in front and back; the end of the screw cylinder is fixedly connected to the horizontal plate (413).

7. The barrier-free elevator according to claim 6, characterized in that: Multiple arc-shaped notches (414) with an inner bottom arc are formed on the upper end face of the horizontal plate (413) and the multiple arc-shaped notches (414) are distributed alternately on the left and right sides; an arc-shaped protrusion (311) corresponding to the arc-shaped notch (414) is provided on the lower end face of the cover plate (30) and the arc-shaped protrusion (311) extends in the front and rear direction; the lower arc surface of the arc-shaped protrusion (311) contacts and matches the bottom arc surface of the arc-shaped notch (414).

8. The barrier-free elevator according to claim 1, characterized in that: A matching groove structure is provided between the upper end face of the cover plate (30) and the lower end face of the support plate (42).

Images