Lift car safety door

Abstract

The utility model belongs to the field of safety doors, and particularly relates to a lift car safety door which comprises stand columns and a movable device. The movable device is provided with a connecting rod, the top of the connecting rod is fixedly provided with an electric push cylinder, the output end of the electric push cylinder is movably provided with a push rod, and one end of the push rod is hinged to a linkage arm; an electric push cylinder is driven through a control unit, when a push rod moves, a linkage arm is in linkage with a linkage rod to conduct corresponding movement, the linkage rod drives a second movable door at the bottom to conduct circumferential movement with the joint of a hinge rod as the axis, and meanwhile a first movable door is driven to move; the limiting clamping head at the top of the first movable door slides in the groove formed in the connecting rod, the second movable door and the first movable door are folded towards one side in a limiting mode, then the second movable door and the first movable door are attached to the wall of the lift car, the folding, shrinking and limiting functions are achieved, the problem that limiting cannot be conducted when the safety door is opened is solved, and the working adaptability of personnel is improved.

Description

Technical Field

[0001] The utility model relates to the field of safety doors, in particular to a car safety door. Background Technique

[0002] The "Safety Code for the Manufacture and Installation of Lifts" stipulates that when the distance between the sill of two adjacent landing doors is greater than 11m, a door leading to the hoistway for rescuing passengers needs to be opened on the hoistway wall. The hoistway safety door is a door for rescuing passengers, and its purpose is to rescue the passengers trapped in the car as soon as possible when the distance between the sills of two adjacent landing doors is too large.

[0003] Chinese Patent No. CN202222693755.7 discloses a car safety door, including a door panel. The door panel is in a T shape, and convex blocks are arranged at both the upper and lower ends of the door panel. The convex block at the bottom of the door panel is fixedly connected with an arc-shaped clamp. A door pocket is arranged above the door panel, and a door seat is arranged below the door panel. Guardrail grooves are opened on both sides of the door panel. A hanging rod is fixedly connected to one side of the door seat close to the arc-shaped clamp, and the arc-shaped clamp is rotatably connected to the hanging rod. Through grooves are opened at both the upper and lower ends of the door panel, and a sliding positioning assembly is arranged inside the through grooves. The sliding positioning assembly includes a two-way cylinder, a square block and a pulley. The two-way cylinder is fixedly connected to the middle of the through groove, the square block is fixedly connected to both ends of the two-way cylinder, U-shaped frames are fixedly connected to the four corners of the side of the square block facing away from the two-way cylinder, and the pulley is rotatably connected inside the U-shaped frame. Protection components are also arranged on both sides of the door panel.

[0004] As can be seen from the above, when the door panel is placed flat in the elevator hoistway, the first hanging block above the door panel and the second hanging block below can be hung and fixed on the hoisting rope at the top of the hoistway. The two-way cylinder pushes the square block outwards at both ends, and the pulleys at the four corners of the square block contact the hoistway side wall, so that the door panel can be smoothly translated up and down during rescue without shaking. However, this case still has the following deficiencies: when using the safety door inside the car, the existing safety door cannot be limited in position when it is opened, and the safety door will swing left and right during operation, which will have a certain impact on the operation, thereby increasing the subsequent operation difficulty for personnel.

[0005] Therefore, a car safety door is proposed for the above problems. Content of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve the problem that the safety door cannot be limited in position when it is opened, the utility model proposes a car safety door.

[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: A car safety door of the present utility model includes a column and a moving device; a connecting rod is installed on the moving device, an electric push cylinder is fixedly installed at the top of the connecting rod, a push rod is movably installed at the output end of the electric push cylinder, one end of the push rod is hinged with a linkage arm, the other end of the linkage arm is hinged with a linkage rod, and the other end of the linkage rod is fixedly connected to a second moving door.

[0008] Preferably, a fixed rod is installed on the column, the top of the fixed rod is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to a hinge rod.

[0009] Preferably, a lock frame is fixedly installed on one side of the fixed rod, a lock body is movably installed on the other side of the lock frame, and a first moving door is fixedly installed on one side of the lock body.

[0010] Preferably, a control unit is fixedly installed on one side of the fixed rod, and the control unit is electrically connected to an electric push cylinder on one side.

[0011] Preferably, a first moving door is hinged to one side of the second moving door, and a hinge rod is hinged to the other side of the second moving door.

[0012] Preferably, a moving groove is opened at the bottom of the connecting rod, a limit chuck is movably installed on the inner wall of the moving groove, and a first moving door is fixedly connected to the bottom of the limit chuck.

[0013] The beneficial effects of the present utility model are as follows:

[0014] Through the structural design of the moving device of the present utility model, the electric push cylinder is driven by the control unit. When the push rod moves, the linkage rod is linked by the linkage arm to perform corresponding movements. The linkage rod drives the second moving door at the bottom to perform circular movement with the hinge point of the hinge rod as the axis, and at the same time drives the first moving door to move. The limit chuck at the top of the first moving door slides on the groove opened on the connecting rod, and the second moving door and the first moving door are folded to one side in a limited way and then fit with the car wall, realizing the function of folding, shrinking and limiting, solving the problem that the safety door cannot be limited when opened, and improving the adaptability of personnel work. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 Exploded schematic diagram of the overall structure of the present utility model;

[0018] Figure 3 Schematic diagram of the structure of the movable device of the present utility model;

[0019] Figure 4 Schematic diagram of the structure of the column of the present utility model;

[0020] Figure 5 For the present utility model Figure 4 Enlarged schematic diagram of the structure at position A in the present utility model.

[0021] In the figure: 1. Column; 2. Movable device; 11. Fixed rod; 12. Lock frame; 13. Lock body; 14. Control unit; 21. Connecting rod; 22. Electric push cylinder; 23. Push rod; 24. Linkage arm; 25. Linkage rod; 26. Activity groove; 27. Limit chuck; 28. First movable door; 29. Second movable door; 31. Hinge rod. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-5 As shown, a car safety door includes a column 1 and a movable device 2; a connecting rod 21 is installed on the movable device 2, the top of the connecting rod 21 is fixedly installed with an electric push cylinder 22, the output end of the electric push cylinder 22 is movably installed with a push rod 23, one end of the push rod 23 is hinged with a linkage arm 24, the other end of the linkage arm 24 is hinged with a linkage rod 25, and the other end of the linkage rod 25 is fixedly connected with a second movable door 29;

[0024] During operation, when the electric push cylinder 22 is working, it drives the push rod 23 to move inside its inner wall, and the push rod 23 drives the second movable door 29 to move correspondingly through the linkage arm 24 and the linkage rod 25.

[0025] Furthermore, a fixed rod 11 is installed on the column 1, the top of the fixed rod 11 is fixedly connected with a connecting rod 21, and the other end of the connecting rod 21 is fixedly connected with a hinge rod 31;

[0026] During operation, the connecting rod 21 is supported and fixed by the hinge rod 31 and the fixed rod 11, which is beneficial to ensuring the stable and orderly movement of the second movable door 29 and the first movable door 28.

[0027] Furthermore, a lock frame 12 is fixedly installed on one side of the fixed rod 11, a lock body 13 is movably installed on the other side of the lock frame 12, and the first movable door 28 is fixedly installed on one side of the lock body 13;

[0028] During operation, by installing the lock frame 12 and the lock body 13, it can prevent people from accidentally touching inside the car, resulting in the sudden opening of the first movable door 28 and the second movable door 29 and causing safety accidents.

[0029] Furthermore, a control unit 14 is fixedly installed on one side of the fixed rod 11, and an electric push cylinder 22 is electrically connected to one side of the control unit 14;

[0030] During operation, by installing the control unit 14 to control the electric push cylinder 22, choosing to drive or perform a power-off operation is beneficial to adding a certain guarantee for subsequent work.

[0031] Furthermore, the first movable door 28 is hinged to one side of the second movable door 29, and the hinge rod 31 is hinged to the other side of the second movable door 29;

[0032] During operation, when the second movable door 29 moves, it makes a circular movement around the hinge of the hinge rod 31 as the axis, and at the same time, the other side drives the first movable door 28 to move accordingly.

[0033] Furthermore, a movable groove 26 is opened at the bottom of the connecting rod 21, a limit chuck 27 is movably installed on the inner wall of the movable groove 26, and the bottom of the limit chuck 27 is fixedly connected to the first movable door 28;

[0034] During operation, when the first movable door 28 moves, the limit chuck 27 at the top of the first movable door 28 slides correspondingly inside the movable groove 26 to limit the first movable door 28, which is beneficial to the folding between the first movable door 28 and the second movable door 29.

[0035] Working principle: When the safety door needs to be used, the lock body 13 is opened on the lock frame 12, and the connection between the first movable door 28 and the fixed rod 11 is cancelled. At this time, the control unit 14 drives the electric push cylinder 22, so that the push rod 23 at the output end of the electric push cylinder 22 moves inside its inner wall. One end of the push rod 23 is connected with a linkage rod 25 through a linkage arm 24. When the push rod 23 moves, the linkage rod 25 is linked through the linkage arm 24 to move accordingly. At the same time, the linkage rod 25 drives the second movable door 29 at the bottom to perform a circular movement around the connection of the hinge rod 31. The other side of the second movable door 29 pulls the first movable door 28 in an articulated manner, so that the limit catch 27 at the top of the first movable door 28 slides on the groove formed in the connecting rod 21, forming the limit of the hinge rod 31 and the first movable door 28. When the push rod 23 moves to a certain position, the second movable door 29 and the first movable door 28 fold to one side, and the second movable door 29 and the first movable door 28 are attached to the car wall, facilitating subsequent operations for personnel.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A car safety door, characterized in that: It includes a column (1) and a movable device (2); the movable device (2) is installed with a connecting rod (21), the top of the connecting rod (21) is fixedly installed with an electric push cylinder (22), the output end of the electric push cylinder (22) is movably installed with a push rod (23), one end of the push rod (23) is hinged with a linkage arm (24), the other end of the linkage arm (24) is hinged with a linkage rod (25), and the other end of the linkage rod (25) is fixedly connected with a second movable door (29).

2. The car safety door according to claim 1, characterized in that: The column (1) is installed with a fixed rod (11), the top of the fixed rod (11) is fixedly connected with a connecting rod (21), and the other end of the connecting rod (21) is fixedly connected with a hinge rod (31).

3. A car safety door according to claim 2, characterized in that: One side of the fixed rod (11) is fixedly installed with a lock frame (12), the other side of the lock frame (12) is movably installed with a lock body (13), and one side of the lock body (13) is fixedly installed with a first movable door (28).

4. A car safety door according to claim 3, characterized in that: One side of the fixed rod (11) is fixedly installed with a control unit (14), and one side of the control unit (14) is electrically connected with the electric push cylinder (22).

5. A car safety door according to claim 1, characterized in that: One side of the second movable door (29) is hinged with the first movable door (28), and the other side of the second movable door (29) is hinged with the hinge rod (31).

6. A car safety door according to claim 1, characterized in that: The bottom of the connecting rod (21) is provided with a movable groove (26), the inner wall of the movable groove (26) is movably installed with a limit chuck (27), and the bottom of the limit chuck (27) is fixedly connected with the first movable door (28).

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