Anti-pinch device for elevator door

Abstract

The utility model discloses an anti-pinch device for an elevator door, which belongs to the field of elevator components and comprises two door bodies arranged at intervals, driving mechanisms are arranged at the upper ends of the door bodies, an external controller is used for controlling the driving mechanisms to work, notches are formed in the door bodies, sliding grooves are formed in the notches, and movable plates are arranged in the sliding grooves in a sliding manner. When the door bodies on the two sides are closed, the hands of a passenger can exert extrusion force on the movable plates on the two sides, the movable plates move towards the interior of the sliding groove, the springs are compressed, the movable rods move in the guide sleeves, and the movable plates are fixed to the sliding grooves. Therefore, the movable plates on the two sides cannot clamp the hands of the passenger, the hands of the passenger can be protected, and the elevator door has the hand clamping prevention function.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator assembly technical field especially relates to a kind of elevator door anti-pinch hand device. BACKGROUND

[0002] The elevator door is an important security component of the elevator, and its design integrates mechanical, electronic and intelligent control technology. The basic structure of the elevator door includes door leaf, guide rail, door lock, door hanging plate and other components and their functions. The types of elevator doors are divided into center-split type and side-opening type according to the opening method.

[0003] The existing Chinese patent discloses an elevator door (publication number CN113966309A). The elevator door has a guide shoe at the lower part. The guide shoe slides in the sill groove of the sill set at the entrance. The first door and the second door are stored in the door sleeve part. When the door is closed, the first door blocks the door stop side of the entrance, and the second door blocks the door sleeve side. The first door has a door disengagement prevention accessory at the lower part of the door sleeve side. The second door has a door disengagement prevention frame separated by a specified interval above the door disengagement prevention accessory.

[0004] Since the existing elevator door lacks a hand-pinch prevention function, it may directly threaten the personal safety of passengers. If the closing force of the car door exceeds 150N (the upper limit of the national standard), it may cause finger comminuted fracture. The probability of children's fingers being pinched is 7 times higher than that of adults. Elderly passengers are more likely to have hand-pinch accidents due to delayed reaction. In addition, the elevator door may also pinch objects, which not only causes the objects to be pinched, but also may cause the door panel to deform if the passenger forcibly pulls the pinched object. To solve the above problems, we propose an elevator door anti-pinch hand device. UTILITY MODEL CONTENT

[0005] The utility model aims to solve the problem of lack of hand-pinch prevention function in the prior art and proposes an elevator door anti-pinch hand device.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An elevator door anti-pinch hand device includes two door bodies arranged at intervals. The upper end of each door body is provided with a driving mechanism. The driving mechanisms on both sides are mirror images. The driving mechanisms are connected to the door bodies and used to drive the door bodies to move. The driving mechanisms are electrically connected to an external controller, which is used to control the operation of the driving mechanisms.

[0008] The door body is provided with a cutout, a sliding slot is formed in the cutout, a movable plate is slidably arranged in the sliding slot, one end of the movable plate extends to the cutout and the movable plate is flush with the outer end surface of the door body, two guide sleeves are fixedly arranged in the sliding slot in a spaced apart manner, a movable rod is slidably arranged in each guide sleeve, the outer end of the movable rod is fixedly connected to the movable plate, a spring is arranged on the movable rod, and the two ends of the spring are fixedly connected to the guide sleeve and the movable plate respectively.

[0009] Preferably, the outer end surface of the movable plate is provided with uniformly distributed protruding particles, and the protruding particles are made of silica gel.

[0010] Preferably, the driving mechanism comprises two sliding grooves arranged on the two sides of the door body, the two sliding grooves are symmetrically distributed, sliding blocks are fixedly arranged on the two sides of the door body, the sliding blocks are slidably arranged in the sliding grooves respectively, and the driving mechanism further comprises a power assembly connected to the top of the door body.

[0011] Preferably, the power assembly comprises a bracket arranged at the top end of the door body, two spaced apart belt rollers are rotatably arranged in the bracket, a synchronous belt is arranged between the two belt rollers, a connecting block is fixedly arranged at the bottom of the synchronous belt, the connecting block is fixedly connected to the top of the door body, an electric motor is fixedly arranged on the bracket, and the output shaft of the electric motor is fixedly connected to one of the belt rollers.

[0012] Preferably, the sliding grooves and the bracket are connected to the mounting grooves in the outer wall surface through screws.

[0013] Preferably, a plurality of equidistantly distributed perforations are formed in the door body, and transparent sheets are fixedly arranged in the perforations.

[0014] Preferably, a plurality of equidistantly distributed photoelectric sensors are fixedly arranged in the sliding slot, the photoelectric sensors are arranged towards the perforations respectively, and the photoelectric sensors are electrically connected to an external controller, and the external controller is used for controlling the working of the photoelectric sensors.

[0015] Compared with the prior art, the elevator door has the advantages that:

[0016] 1、When the door is closed, the passenger's hands apply extrusion force to the two movable plates, the movable plates move towards the inside of the sliding slot and the springs are compressed, the movable rods move in the guide sleeves, so that the two movable plates do not pinch the passenger's hands, and the elevator door has the function of preventing hands from being pinched.

[0017] 2. When the movable panel of this application comes into contact with a passenger's hand, the raised particles on the movable panel contact the passenger's hand. The unique tactile sensation of the raised particles can quickly remind the passenger to withdraw their hand from between the two movable panels. An optical sensor detects objects between the two movable panels. When the optical sensor detects an object obstructing the space between the two movable panels, the external controller initiates a door-closing action, preventing not only the passenger's hand from being trapped, but also preventing the trapping of items carried by the passenger or other objects. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an elevator door anti-pinch device proposed in this utility model;

[0019] Figure 2 This utility model proposes an anti-pinch device for elevator doors. Figure 1 Enlarged diagram of point A in the diagram;

[0020] Figure 3 This utility model proposes an anti-pinch device for elevator doors. Figure 1 Enlarged diagram of point B in the image;

[0021] Figure 4 This is a cross-sectional view of the door body of an elevator door anti-pinch device proposed in this utility model;

[0022] Figure 5 This is an enlarged cross-sectional view of a portion of the structure of the guide sleeve of an elevator door anti-pinch device proposed in this utility model;

[0023] Figure 6 This is an enlarged schematic diagram of a portion of the structure of the door body and movable plate of an elevator door anti-pinch device proposed in this utility model.

[0024] In the diagram: 1. Door body; 2. Cutout; 3. Slide groove; 4. Movable plate; 5. Guide sleeve; 6. Movable rod; 7. Spring; 8. Slide rail; 9. Slider; 10. Bracket; 11. Belt roller; 12. Synchronous belt; 13. Connecting block; 14. Motor; 15. Perforation; 16. Transparent sheet; 17. Photoelectric sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0026] Reference Figures 1-6The application discloses an elevator door anti-pinch hand device.

[0027] The door body 1 is provided with a cutout 2, and a sliding groove 3 is formed in the cutout 2; an activity plate 4 is slidably arranged in the sliding groove 3, and one end of the activity plate 4 extends to the cutout 2 and is flush with the outer end surface of the door body 1; two guide sleeves 5 are fixedly arranged in the sliding groove 3 in a spaced-apart manner; a movable rod 6 is slidably arranged in each guide sleeve 5; the movable rod 6 is fixedly connected to the outer end of the activity plate 4; a spring 7 is arranged on the movable rod 6; and the two ends of the spring 7 are fixedly connected to the guide sleeve 5 and the activity plate 4 respectively.

[0028] When the two door bodies 1 are closed and the passenger's hands are located between the two activity plates 4, the two activity plates 4 are in contact with the passenger's hands; with the closing action of the door bodies 1, the passenger's hands apply a pressing force to the two activity plates 4, the activity plates 4 move towards the inside of the sliding groove 3 and the springs 7 are compressed, the movable rods 6 move in the guide sleeves 5, so that the two activity plates 4 do not pinch the passenger's hands, and the passenger's hands are protected.

[0029] The outer end surface of the activity plate 4 is provided with uniformly distributed protruding particles made of silica gel.

[0030] Based on the first embodiment, the second embodiment is provided.

[0031] With reference to Figures 3-5 The driving mechanism comprises two sliding grooves 8 arranged on the two sides of the door body 1 respectively, the two sliding grooves 8 are symmetrically arranged, sliding blocks 9 are fixedly arranged on the two sides of the door body 1 respectively, the sliding blocks 9 are slidably arranged in the sliding grooves 8 respectively, the driving mechanism further comprises a power assembly, and the power assembly is connected to the top of the door body 1. The power assembly comprises a support 10 arranged at the top end of the door body 1, two interval arranged belt rollers 11 are rotatably arranged in the support 10, a synchronous belt 12 is arranged between the two belt rollers 11, a connecting block 13 is fixedly arranged at the bottom of the synchronous belt 12, the connecting block 13 is fixedly connected to the top of the door body 1, a motor 14 is fixedly arranged on the support 10, and the output shaft of the motor 14 is fixedly connected to one of the belt rollers 11.

[0032] The slide 8 and the support 10 are connected in the installation groove of the outer wall by screws.

[0033] The external controller and the power supply structure of the device are installed on the support 10, the motor 14 drives the belt roller 11 on one side to rotate, the synchronous belt 12 is driven to operate, the connecting block 13 on the synchronous belt 12 moves and drives the door body 1 to move along the direction of the slide 8 through the connecting block 13, the door body 1 on both sides is driven to separate and combine, the opening and closing actions of the elevator are realized, after the door is closed, the motor 14 is in the self-locking state and cannot be pulled open by the hand of an outsider.

[0034] When the door is closed, the photoelectric sensor 17 detects the articles between the two movable plates 4, when the photoelectric sensor 17 detects that the articles are blocked between the two movable plates 4, the photoelectric sensor 17 transmits the signal to the external controller, the external controller controls the motor 14 to work, the motor 14 reverses and switches to the closing action, after a certain time, the motor 14 continues the closing action, the anti-pinch function of the elevator door is realized, not only the passenger is prevented from being pinched, but also the articles carried by the passenger and other articles are prevented from being pinched.

[0035] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change are covered in the protection scope of the utility model.

Claims

1. An elevator door anti-pinch device, comprising two door panels (1) spaced apart, characterized in that, The upper end of the door body (1) is provided with a drive mechanism, and the drive mechanisms on both sides are mirrored. The drive mechanism is connected to the door body (1) and is used to drive the door body (1) to move. The drive mechanism is electrically connected to an external controller, which is used to control the operation of the drive mechanism. A notch (2) is provided on the door body (1). A groove (3) is provided in the notch (2). A movable plate (4) is slidably arranged in the groove (3). One end of the movable plate (4) extends to the notch (2) and the movable plate (4) is flush with the outer end face of the door body (1). Two guide sleeves (5) are fixedly installed in the groove (3) with vertical spacing. A slidable movable rod (6) is inserted in each guide sleeve (5). The outer end of the movable rod (6) is fixedly connected to the movable plate (4). A spring (7) is sleeved on each movable rod (6). The two ends of the spring (7) are fixedly connected to the guide sleeve (5) and the movable plate (4) respectively.

2. The elevator door anti-pinch device according to claim 1, characterized in that, The outer end face of the movable plate (4) is provided with uniformly distributed protruding particles, and the protruding particles are made of silicone.

3. The elevator door anti-pinch device according to claim 1, characterized in that, The driving mechanism includes two slides (8) respectively located on both sides of the door body (1). The two slides (8) are symmetrically distributed. A slider (9) is fixed on both sides of the door body (1). The slider (9) is slidably disposed in the slide (8). The driving mechanism also includes a power component, which is connected to the top of the door body (1).

4. The elevator door anti-pinch device according to claim 3, characterized in that, The power assembly includes a bracket (10) set at the top of the door body (1), two belt rollers (11) spaced apart are rotatably installed in the bracket (10), a synchronous belt (12) is installed between the two belt rollers (11), a connecting block (13) is fixed at the bottom of the synchronous belt (12), the connecting block (13) is fixed to the top of the door body (1), and a motor (14) is fixed on the bracket (10), the output shaft of the motor (14) is fixed to one side of the belt roller (11).

5. The elevator door anti-pinch device according to claim 4, characterized in that, The slide (8) and the bracket (10) are both connected to the mounting groove on the outer wall by screws.

6. The elevator door anti-pinch device according to claim 4, characterized in that, The door body (1) has multiple equally spaced perforations (15), and each perforation (15) has a transparent sheet (16) fixed inside it.

7. The elevator door anti-pinch device according to claim 6, characterized in that, Multiple photoelectric sensors (17) are fixed in the groove (3) at equal intervals. The photoelectric sensors (17) are respectively arranged facing the through hole (15). The photoelectric sensors (17) are electrically connected to an external controller, which is used to control the operation of the photoelectric sensors (17).

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