Anti-pinch device for elevator car door

Abstract

The utility model discloses an elevator car door anti-pinch device, which belongs to the technical field of elevator car door anti-pinch, and comprises a car body, the inner side wall of the car body is connected with two limiting frames in a sliding manner, the inner side wall of each limiting frame is fixedly provided with stress springs which are arranged at equal intervals, and the stress springs are connected with the limiting frames in a sliding manner. A U-shaped frame is fixedly installed at the left end of each set of stress springs, a rubber pad is fixedly installed on the outer surface of each U-shaped frame, limiting springs arranged at equal intervals are fixedly installed on the inner wall of the lift car body, and the ends, away from the lift car body, of each set of limiting springs are fixedly connected with the side faces, close to the limiting springs, of the limiting frames. Pressure sensors arranged at equal intervals are fixedly installed on the inner wall of the lift car body. According to the anti-pinch device for the elevator car door, the U-shaped frame can be shifted through elastic force provided by the stress spring when the hand of an infant is clamped into the gap, so that the U-shaped frame can enter the limiting frame, the gap can be enlarged, and the hand of the infant can be pulled out outwards.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of elevator car door anti-pinch hand, and particularly relates to an elevator car door anti-pinch hand device. BACKGROUND

[0002] In a car elevator, the car door on the top of the car is a necessary structure for entering and exiting the car, wherein, in order to ensure that the car door of the elevator is prevented from scratching the car door panel during opening, a gap is reserved between the car door panel and the front wall of the car.

[0003] The existing elevator car door has a certain gap when being opened and closed, so that babies are particularly curious about the opening and closing of the car door, and thus the baby's fingers are placed on the car door, and when the car door moves, the baby's fingers are clamped in the gap between the car door and the front wall of the car, which has a certain safety hazard, and the practicability is low.

[0004] Therefore, the application provides an elevator car door anti-pinch hand device to solve the above problems. CONTENT OF THE NEW TYPE

[0005] The application aims to solve the problems in the prior art that the existing elevator car door has a certain gap when being opened and closed, so that babies are particularly curious about the opening and closing of the car door, and thus the baby's fingers are placed on the car door, and when the car door moves, the baby's fingers are clamped in the gap between the car door and the front wall of the car, which has a certain safety hazard, and the practicability is low, and provides an elevator car door anti-pinch hand device.

[0006] In order to achieve the above purpose, the application adopts the following technical scheme:

[0007] The elevator car door anti-pinch hand device comprises a car body, the inner side wall of the car body is slidably connected with two limiting frames, the inner side wall of each limiting frame is fixedly installed with force springs arranged at equal distances, the left end of each group of force springs is fixedly installed with a U-shaped frame, the outer surface of each U-shaped frame is fixedly installed with a rubber pad, the inner wall of the car body is fixedly installed with limiting springs arranged at equal distances, the end of each group of limiting springs away from the car body is fixedly connected with the side face of the limiting frame close to the limiting spring, the inner wall of the car body is fixedly installed with pressure sensors arranged at equal distances, the inner wall of the car body is fixedly installed with an alarm lamp, and the alarm lamp is electrically connected with the pressure sensor through a wire.

[0008] Preferably, the left side of the car body is provided with a first car door body and a second car door body, and the front face of the first car door body is in contact with the back face of the second car door body.

[0009] Preferably, a fixing frame is fixedly installed on the upper surface of the car body, and the upper surfaces of the first car door body and the second car door body are slidably connected to the bottom surface of the fixing frame.

[0010] Preferably, two first limiting strips are fixedly installed on the bottom surface of the first car door body, and two second limiting strips are fixedly installed on the bottom surface of the second car door body.

[0011] Preferably, a mounting bracket is fixedly installed on the left side of the car body, and the outer surface of each of the first and second limiting strips is slidably connected to the inner wall of the mounting bracket.

[0012] Preferably, a control panel is fixedly installed on the inner wall of the car body, and control buttons arranged at equal intervals are fixedly installed on the front of the control panel.

[0013] Preferably, a handle is fixedly installed on the outer surface of each U-shaped frame, and an anti-slip pad is fixedly installed on the outer surface of each handle.

[0014] In summary, the technical effects and advantages of this application are as follows: by setting a limiting frame, the U-shaped frame can be limited; the rubber pad can protect the infant's hand that is stuck in the gap; the elastic force provided by the force spring can push the U-shaped frame when the infant's hand is stuck in the gap, allowing the U-shaped frame to enter the limiting frame, thereby widening the gap and allowing the infant's hand to be pulled out. When the infant's hand cannot be pulled out, the limiting frame will move with the infant's hand, allowing the limiting frame to squeeze the pressure sensor. When the pressure sensor is squeezed, the pressure sensor transmits an electrical signal through a wire to the door power mechanism and the alarm light, allowing the door to stop moving quickly and the alarm light to sound quickly, thereby alerting the personnel inside the car and enabling them to quickly rescue the infant, thus reducing safety hazards and achieving a highly practical effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the car body of this utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional structural diagram of the limiting frame of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the alarm light of this utility model;

[0018] Figure 4 This is a left-side stereoscopic structural diagram of the pressure sensor of this utility model.

[0019] In the diagram: 1. Car body; 2. Limiting frame; 3. Force-bearing spring; 4. U-shaped frame; 5. Rubber pad; 6. Limiting spring; 7. Pressure sensor; 8. Warning light; 9. First car door body; 10. Second car door body; 11. Fixing frame; 12. First limiting strip; 13. Second limiting strip; 14. Mounting bracket; 15. Control panel; 16. Control button; 17. Handle; 18. Anti-slip mat. Detailed Implementation

[0020] 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.

[0021] Reference Figures 1-4 An anti-pinch device for elevator car doors includes a car body 1. Two limiting frames 2 are slidably connected to the inner side wall of the car body 1. Each limiting frame 2 has a force spring 3 arranged at equal intervals fixedly installed on its inner side wall. A U-shaped frame 4 is fixedly installed on the left end of each set of force springs 3. A first car door body 9 and a second car door body 10 are arranged on the left side of the car body 1. The front of the first car door body 9 is in contact with the back of the second car door body 10. The first car door body 9 and the second car door body 10 can close the car body 1, thereby ensuring the safety of passengers and increasing the practicality of the device.

[0022] Each U-shaped frame 4 has a rubber pad 5 fixedly installed on its outer surface. The inner wall of the car body 1 has equidistantly arranged limiting springs 6 fixedly installed. The end of each limiting spring 6 away from the car body 1 is fixedly connected to the side of the limiting frame 2 near the limiting spring 6. A fixing frame 11 is fixedly installed on the upper surface of the car body 1. The upper surfaces of the first car door body 9 and the second car door body 10 are slidably connected to the bottom surface of the fixing frame 11. The fixing frame 11 is equipped with a power mechanism. The power mechanism drives the first car door body 9 and the second car door body 10. This is existing technology. Its specific mechanism and working principle will not be described in detail here.

[0023] Pressure sensors 7 arranged at equal intervals are fixedly installed on the inner wall of the car body 1. An alarm light 8 is fixedly installed on the inner wall of the car body 1. The alarm light 8 is electrically connected to the pressure sensors 7 through a wire. Two first limit strips 12 are fixedly installed on the bottom surface of the first car door body 9, and two second limit strips 13 are fixedly installed on the bottom surface of the second car door body 10. The first limit strips 12 and the second limit strips 13 can limit the first car door body 9 and the second car door body 10, thereby preventing the first car door body 9 and the second car door body 10 from shifting when opening and closing, and increasing the stability of the first car door body 9 and the second car door body 10.

[0024] A mounting bracket 14 is fixedly installed on the left side of the car body 1. The outer surface of each first limiting strip 12 and second limiting strip 13 is slidably connected to the inner wall of the mounting bracket 14. The mounting bracket 14 can limit the first limiting strip 12 and second limiting strip 13, thereby preventing the first car door body 9 and the second car door body 10 from shifting, and further increasing the stability of the first car door body 9 and the second car door body 10.

[0025] A control panel 15 is fixedly installed on the inner wall of the car body 1. Control buttons 16 are fixedly installed on the front of the control panel 15 at equal intervals. Passengers can easily operate the car body 1 through the control buttons 16, so that they can stop the car at a specific position, which increases the convenience of the device.

[0026] Each U-shaped frame 4 has a handle 17 fixedly installed on its outer surface, and each handle 17 has an anti-slip pad 18 fixedly installed on its outer surface. The handle 17 allows people to easily pull the U-shaped frame 4 to move, thus facilitating the rescue of hands stuck in gaps. The anti-slip pad 18 increases the friction between the handle 17 and the person's hand, preventing the handle 17 from slipping during the rescue.

[0027] The working principle of this utility model is as follows: In use, firstly, the pressure sensor 7, alarm light 8, and control panel 15 are powered on. The mounting bracket 14 can limit the first car door body 9 and the second car door body 10, preventing them from shifting when closing or opening. When an infant's hand slides into the gap along with the first car door body 9 or the second car door body 10, the rubber pad 5 protects the infant's hand from getting stuck. The elastic force provided by the force spring 3 can push the U-shaped bracket 4 when the infant's hand is stuck in the gap, allowing the U-shaped bracket 4 to enter the limiting bracket 2, thereby widening the gap and allowing the infant's hand to be pulled out. When the infant's hand cannot be pulled out... The limit bracket 2 moves with the infant's hand, allowing it to squeeze the pressure sensor 7. When the pressure sensor 7 is squeezed, it transmits an electrical signal to the door power mechanism and alarm light 8 via a wire, causing the door to stop moving quickly and the alarm light 8 to sound an alarm, thus alerting the people inside the elevator car 1. The person can then manually grasp the handle 17 and pull the U-shaped bracket 4 to move it, facilitating the rescue of the hand stuck in the gap. The anti-slip pad 18 increases the friction between the handle 17 and the person's hand, preventing the handle 17 from slipping during the rescue, allowing for quick rescue of the infant, reducing safety hazards, and enhancing the practicality of the elevator car door anti-pinch device.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An anti-pinch device for elevator car doors, comprising a car body (1), characterized in that: The inner wall of the car body (1) is slidably connected to two limiting frames (2). Each limiting frame (2) has a force spring (3) arranged at equal intervals fixedly installed on its inner wall. Each set of force springs (3) has a U-shaped frame (4) fixedly installed on its left end. Each U-shaped frame (4) has a rubber pad (5) fixedly installed on its outer surface. The inner wall of the car body (1) has a limiting spring (6) arranged at equal intervals fixedly installed. The end of each set of limiting springs (6) away from the car body (1) is fixedly connected to the side of the limiting frame (2) close to the limiting spring (6). The inner wall of the car body (1) has a pressure sensor (7) arranged at equal intervals fixedly installed. The inner wall of the car body (1) has an alarm light (8) fixedly installed. The alarm light (8) is electrically connected to the pressure sensor (7) through a wire.

2. The anti-pinch device for elevator car doors according to claim 1, characterized in that: The left side of the car body (1) is provided with a first car door body (9) and a second car door body (10), and the front of the first car door body (9) is in contact with the back of the second car door body (10).

3. The anti-pinch device for elevator car doors according to claim 2, characterized in that: A fixing frame (11) is fixedly installed on the upper surface of the car body (1), and the upper surfaces of the first car door body (9) and the second car door body (10) are slidably connected to the bottom surface of the fixing frame (11).

4. The anti-pinch device for elevator car doors according to claim 3, characterized in that: Two first limiting strips (12) are fixedly installed on the bottom surface of the first car door body (9), and two second limiting strips (13) are fixedly installed on the bottom surface of the second car door body (10).

5. The anti-pinch device for elevator car doors according to claim 4, characterized in that: A mounting bracket (14) is fixedly installed on the left side of the car body (1), and the outer surfaces of each of the first limiting strips (12) and the second limiting strips (13) are slidably connected to the inner wall of the mounting bracket (14).

6. The anti-pinch device for elevator car doors according to claim 1, characterized in that: A control panel (15) is fixedly installed on the inner wall of the car body (1), and control buttons (16) arranged at equal intervals are fixedly installed on the front of the control panel (15).

7. The anti-pinch device for elevator car doors according to claim 1, characterized in that: Each of the U-shaped frames (4) has a handle (17) fixedly installed on its outer surface, and each of the handles (17) has an anti-slip pad (18) fixedly installed on its outer surface.

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