Middle-opening double-folding car door device of elevator

Abstract

An elevator center-opening double-folding car door device is used for solving the problems that in the prior art, an elevator car door in the prior art is opened in a center-opening automatic door mode, the elevator car area occupied when the elevator car door is opened is large, the hoistway area is set according to the area of an elevator car, and therefore a hoistway can occupy the large indoor space area, and the elevator car door cannot be opened easily. The car door structure comprises an outer mounting frame, a car door and a sill beam, the car door is slidably arranged in the outer mounting frame, the sill beam is fixedly arranged at the bottom of the outer mounting frame, the car door is slidably arranged on the sill beam, the car door comprises two first door plates and two second door plates, the two first door plates are oppositely slidably arranged on the sill beam, and the two second door plates are oppositely slidably arranged on the sill beam. The two second door plates are located on the sides, away from each other, of the two first door plates correspondingly, first driving assemblies used for driving the two second door plates to move close to each other are arranged in the outer mounting frame, and second driving assemblies used for driving the two first door plates to move close to each other are arranged on the two second door plates correspondingly.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, and in particular to a double-folding elevator door device. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building, with its car running on at least two rows of rigid tracks that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. The elevator car door is one of the elevator structures, that is, the door seen inside the elevator when the elevator is closed. The elevator car door and the hall door (or floor door) are the doors seen when calling for the elevator from the outside.

[0003] The elevator car door of the prior art, such as the invention patent document with the publication (announcement) number "CN115303920A" and the patent name "A new type of safe and anti-collision elevator car door structure", discloses an elevator car door, including an elevator car door, which is composed of an outer frame and an inner frame, and also includes: a switch mechanism, the switch mechanism is connected to one end of the outer frame; a buffer mechanism, one end of the buffer mechanism is movably connected to one end of the inner frame; a braking mechanism, the braking mechanism includes a sliding member, a brake seat, a second connecting member, a rotating seat, a deflection member, a first elastic member, a limit member and a recovery component.

[0004] At present, in order to maximize the utilization of indoor space, users have increasingly smaller requirements for the size of the shaft and car of home elevators. The elevator car door in the above-mentioned patent document is opened by a center-split automatic door. When the elevator car door is opened, the car area occupied is relatively large, and the shaft area is set according to the area of ​​the car. Therefore, the shaft will occupy a larger space area in the room, which cannot meet the user's indoor space utilization. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and to propose a center-split double-folding elevator car door device, which is used to solve the technical problem mentioned in the background technology that the opening method of the elevator car door in the prior art is a center-split automatic door, and the elevator car door occupies a large car area when opened, and the shaft area is set according to the area of ​​the car, so that the shaft will occupy a larger space area in the room, and the user's indoor space utilization cannot be met.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A double-folding car door device in an elevator comprises an installation outer frame, a car door and a sill beam, wherein the car door is slidably arranged inside the installation outer frame, the sill beam is fixedly arranged at the bottom of the installation outer frame and the car door is slidably arranged on the sill beam, the car door comprises two first door panels and two second door panels, the two first door panels are relatively slidably arranged on the sill beam, the two second door panels are respectively located on the side relatively far away from the two first door panels, a first driving component for driving the two second door panels to move relative to each other is provided in the installation outer frame, and a second driving component for driving the two first door panels to move relative to each other is provided on the two second door panels.

[0008] Working principle:

[0009] When the car door needs to be opened, the two second door panels can be driven away from each other on the sill beam through the first driving component. When the two second door panels move away from each other, the two second door panels can drive the two first door panels to move away from each other on the sill beam through the second driving component. When the car door needs to be closed, the two second door panels can be driven toward each other on the sill beam through the first driving component. When the two second door panels move toward each other, the two second door panels can drive the two first door panels to move toward each other on the sill beam through the second driving component, thereby completing the closing of the car door.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] First, a first driving assembly is provided, and the first driving assembly can synchronously drive the two second door panels to move closer to or farther away from each other on the sill beam, thereby completing the opening or closing of the two second door panels.

[0012] Second, a second driving assembly is provided, which can synchronously drive the two first door panels to move closer to or away from each other when the second door panels move closer to or away from each other, thereby completing the opening or closing of the two first door panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0014] Figure 2 This is a schematic diagram of the structure after the car door is opened;

[0015] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure at the center is enlarged;

[0016] Figure 4 for Figure 1 The enlarged cross-sectional structure diagram at B in the middle;

[0017] Figure 5 It is a schematic diagram of the structure after the first door panel and the second door panel are opened;

[0018] Figure 6 is a schematic diagram of the structure after the first door panel and the second door panel are closed;

[0019] Figure 7 A schematic diagram of the assembly structure for installing the outer frame, the second guide rail and the third rail.

[0020] Explanation of the accompanying drawings: installation frame 1, car door 2, sill beam 3, first door panel 4, second door panel 5, bidirectional screw 6, first guide rail 7, first slider 8, motor 9, fixed wheel 10, wire rope 11, first clamping block 12, second clamping block 13, second guide rail 14, third guide rail 15, first sliding block 16, second sliding block 17, roller 18, infrared transmitter 19, infrared receiver 20. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example:

[0023] like Figure 1 and Figure 2 As shown, a double-folding car door device in an elevator includes an installation outer frame 1, a car door 2 and a sill beam 3. The car door 2 is slidably arranged inside the installation outer frame 1, the sill beam 3 is fixedly arranged at the bottom of the installation outer frame 1 and the car door 2 is slidably arranged on the sill beam 3, and the car door 2 can move inside the installation outer frame 1 on the sill beam 3.

[0024] like Figure 3 and Figure 5 and Figure 6 and Figure 7 As shown, the car door 2 includes two first door panels 4 and two second door panels 5, the two first door panels 4 are relatively slidably arranged on the sill beam 3, the two second door panels 5 are respectively located on the side relatively far away from the two first door panels 4, and are fixedly arranged on the inner wall of the mounting frame 1 to the second guide rail 14 and the third guide rail 15, the tops of the two first door panels 4 are fixedly provided with a first sliding block 16, and the two first sliding blocks 16 are slidably arranged on the second guide rail 14, the tops of the two second door panels 5 are fixedly provided with a second sliding block 17, and the two second sliding blocks 17 are slidably arranged on the third guide rail 15, through the first sliding block 16 and the second guide rail The setting of 14 can facilitate the movement of the first door panel 4 on the sill beam 3, and the setting of the second sliding block 17 and the third guide rail 15 can facilitate the movement of the second door panel 5 on the sill beam 3. The two first sliding blocks 16 and the two second sliding blocks 17 are rotatably provided with a plurality of rollers 18, and the plurality of rollers 18 are respectively connected with the second guide rail 14 and the third guide rail 15 in a rolling manner. The sliding friction on the first sliding block 16 and the second guide rail 14, the second sliding block 17 and the third guide rail 15 can be converted into rolling friction through the rollers 18, thereby reducing the noise when the first door panel 4 and the second door panel 5 move to a certain extent.

[0025] like Figure 1 and Figure 2 and Figure 3 As shown, a first driving assembly for driving the two second door panels 5 to move relative to each other is provided in the installation outer frame 1, and the first driving assembly includes a bidirectional screw 6, a first guide rail 7, two first sliders 8 and a motor 9. The bidirectional screw 6 is rotatably arranged inside the installation outer frame 1 and the bidirectional screw 6 is parallel to the sill beam 3. The first guide rail 7 is fixedly arranged inside the installation outer frame 1 and the first guide rail 7 is parallel to the bidirectional screw 6. The two first sliders 8 are respectively screwed on the two threaded sections of the bidirectional screw 6 and the two first sliders 8 are both slidably arranged on the first guide rail 7. The two second door panels 5 are respectively fixedly connected to the two first sliders 8. The two first sliders 8 can be synchronously driven to approach or move away from each other on the first guide rail 7 through the bidirectional screw 6, so that the two first sliders 8 synchronously drive the two second door panels 5 to approach or move away from each other. The motor 9 is fixedly arranged in the installation outer frame 1 and the output end of the motor 9 is fixedly connected to the bidirectional screw 6. The rotation of the bidirectional screw 6 can be driven by the setting of the motor 9.

[0026] like Figure 1 and Figure 2 and Figure 3 As shown, the two second door panels 5 are each provided with a second driving assembly for driving the two first door panels 4 to move relative to each other, the second driving assembly includes two fixed wheels 10, a steel wire rope 11, a first clamping block 12 and a second clamping block 13, the two fixed wheels 10 are respectively rotatably arranged at the two ends of the second door panel 5, the steel wire rope 11 is sleeved on the outer rings of the two fixed wheels 10, the steel wire rope 11 is movable and can drive the two fixed wheels 10 to rotate synchronously, the two ends of the first clamping block 12 are respectively fixed on the inner wall of the mounting outer frame 1 and the steel wire rope 11, the two ends of the second clamping block 13 are respectively fixed on the first door panel 4 and the steel wire rope 11, the movement of the second door panel 5 can make the first clamping block 12 drive the steel wire rope 11 to move, so that the steel wire rope 11 drives the two fixed wheels 10 to rotate, and then the second clamping block 13 moves synchronously under the movement of the steel wire rope 11, and the second clamping block 13 can drive the first door panel 4 to move.

[0027] like Figure 4 As shown, a plurality of infrared transmitters 19 and a plurality of infrared receivers 20 are fixedly arranged on opposite sides of the two first door panels 4, and the plurality of infrared transmitters 19 correspond to the plurality of infrared receivers 20 on the left and right. The infrared transmitters 19 and the infrared receivers 20 can be used to check objects passing between the two first door panels 4, so as to prevent objects between the two first door panels 4 from being clamped when the two first door panels 4 move close to each other.

[0028] Working principle:

[0029] When it is necessary to open the two first door panels 4 and the two second door panels 5, the motor 9 is started, and the motor 9 drives the bidirectional screw 6 to rotate. The bidirectional screw 6 rotates to drive the two first sliders 8 on the two threaded segments of the bidirectional screw 6 to move away from each other. The two first sliders 8 move away from each other and synchronously drive the two second door panels 5 to move away from each other. When the second door panels 5 move, the first clamping block 12 clamps the wire rope 11 and drives the wire rope 11 to rotate clockwise on the two fixed wheels 10, so that the first door panel 4 moves synchronously in the moving direction of the second door panel 5 under the action of the second clamping block 13. When it is necessary to close the two first door panels 4 and the two second door panels 5, the motor 9 is started. The motor 9 drives the bidirectional screw 6 to rotate, and the bidirectional screw 6 rotates to drive the two first sliders 8 on the two threaded segments of the bidirectional screw 6 to approach each other. The two first sliders 8 approach each other and synchronously drive the two second door panels 5 to approach each other. When the second door panel 5 moves, the first clamping block 12 clamps the wire rope 11 and drives the wire rope 11 to rotate counterclockwise on the two fixed wheels 10, so that the first door panel 4 moves synchronously in the moving direction of the second door panel 5 under the action of the second clamping block 13. When the two first door panels 4 approach each other, the infrared receiver 20 and the infrared transmitter 19 can detect objects between the two first door panels 4 to prevent the objects from being clamped.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An elevator double-folding car door device, characterized in that: The invention comprises an installation outer frame (1), a car door (2) and a sill beam (3), wherein the car door (2) is slidably arranged inside the installation outer frame (1), the sill beam (3) is fixedly arranged at the bottom of the installation outer frame (1) and the car door (2) is slidably arranged on the sill beam (3), the car door (2) comprises two first door panels (4) and two second door panels (5), the two first door panels (4) are slidably arranged on the sill beam (3), the two second door panels (5) are respectively located on the side relatively far from the two first door panels (4), the installation outer frame (1) is provided with a first driving component for driving the two second door panels (5) to move relative to each other, and the two second door panels (5) are both provided with a second driving component for driving the two first door panels (4) to move relative to each other.

2. The elevator center-split double-folding car door device according to claim 1, characterized in that: The first driving assembly comprises a bidirectional screw (6), a first guide rail (7), two first sliders (8) and a motor (9); the bidirectional screw (6) is rotatably arranged inside the mounting outer frame (1) and the bidirectional screw (6) is parallel to the sill beam (3); the first guide rail (7) is fixed inside the mounting outer frame (1) and the first guide rail (7) is parallel to the bidirectional screw (6); the two first sliders (8) are respectively screwed on two threaded sections of the bidirectional screw (6) and the two first sliders (8) are both slidably arranged on the first guide rail (7); the two second door panels (5) are respectively fixedly connected to the two first sliders (8); the motor (9) is fixedly arranged in the mounting outer frame (1) and the output end of the motor (9) is fixedly connected to the bidirectional screw (6).

3. The elevator center-split double-folding car door device according to claim 1, characterized in that: The second driving assembly comprises two fixed wheels (10), a steel wire rope (11), a first clamping block (12) and a second clamping block (13); the two fixed wheels (10) are rotatably arranged at two ends of the second door panel (5), the steel wire rope (11) is sleeved on the outer rings of the two fixed wheels (10), the two ends of the first clamping block (12) are respectively fixed on the inner wall of the mounting outer frame (1) and the steel wire rope (11), and the two ends of the second clamping block (13) are respectively fixed on the first door panel (4) and the steel wire rope (11).

4. The elevator center-split double-folding car door device according to claim 1, characterized in that: The second guide rail (14) and the third guide rail (15) are fixedly arranged on the inner wall of the mounting outer frame (1); the tops of the two first door panels (4) are fixedly provided with first sliding blocks (16), and the two first sliding blocks (16) are slidably arranged on the second guide rail (14); the tops of the two second door panels (5) are fixedly provided with second sliding blocks (17), and the two second sliding blocks (17) are slidably arranged on the third guide rail (15).

5. The elevator center-split double-folding car door device according to claim 4, characterized in that: A plurality of rollers (18) are rotatably provided on the two first sliding blocks (16) and the two second sliding blocks (17), and the plurality of rollers (18) are respectively connected in a rolling manner to the second guide rail (14) and the third guide rail (15).

6. The elevator center-split double-folding car door device according to claim 1, characterized in that: A plurality of infrared transmitters (19) and a plurality of infrared receivers (20) are fixedly arranged on opposite sides of the two first door panels (4), and the plurality of infrared transmitters (19) correspond to the plurality of infrared receivers (20) on the left and right.

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