Anti-pinch elevator door assembly

Abstract

The utility model provides a kind of anti-pinch hand elevator door component, belong to elevator accessory technical field.The utility model is between the column of door frame and the rotating arm of door leaf by setting pivot protection column, and the arc-shaped groove that is matched with the outer peripheral wall of the rotating arm of door leaf is opened in the side of pivot protection column close to the rotating arm of door leaf, the filling between door frame and door leaf is realized, pivot protection column is better close to the rotating arm of door leaf when maintaining door leaf opening and closing deflection, and, there is a protruding anti-pinch strip in the side of pivot protection column and extends towards the rotating arm of door leaf, the opening size of the gap between pivot protection column and the outer peripheral wall of the rotating arm of door leaf is further reduced by anti-pinch strip and maintains the consistency of the gap opening size in the process of door leaf opening and closing, effectively prevent the problem that the finger of person or other foreign matter accidentally extends into the gap opening and causes hand clamping, better satisfy the anti-pinch hand demand of elevator door.

Description

Technical Field

[0001] This utility model relates to the field of elevator accessories technology, specifically to an anti-pinch elevator door assembly. Background Technology

[0002] Elevator doors currently available on the market include center-opening doors, side-opening doors, and swing doors. Center-opening doors operate smoothly and have a simple appearance, but they occupy a larger shaft width. Side-opening doors can fold and open to the same side, effectively saving shaft space, but they also occupy some car space. Swing doors allow the door panels to open outwards, maximizing the opening width and not occupying any shaft space, thus maximizing the car's size. Therefore, swing doors are usually chosen for elevators with narrow shafts.

[0003] Currently, the structure of existing elevator swing doors is typically as described in patent CN217437474U, which discloses a single-leaf swing automatic elevator door structure. This structure vertically rotates the door leaf body to the door frame, and the drive unit's rotating shaft is located inside the door frame. An adapter bolt is fitted onto the rotating shaft, connecting it to the door leaf body. The output of the drive motor links with the door leaf body via the rotating shaft, enabling the door leaf body to rotate and open / close. Furthermore, the vertical angle between the door leaf body and the door frame forms the opening rotation angle, ranging from 0° to 96°. To improve the stability of the rotating shaft and door leaf body during rotation, a limiting surface is formed on the inner wall of the door frame's edge. This limiting surface is arc-shaped and its shape is similar to the peripheral wall of the rotating shaft, limiting and guiding the rotating shaft. During the opening and closing of the door leaf body, the rotating shaft rotates relative to the limiting surface, and the arc-shaped limiting surface wraps around and covers the side of the rotating shaft closest to the door frame. Although the upper structure can meet the opening and closing requirements of the swing elevator door, in order to ensure the normal rotation of the rotating shaft, there is a gap between the limiting surface and the peripheral wall of the rotating shaft. This results in open openings between the two sides of the limiting surface and the peripheral wall of the rotating shaft. As a result, during the opening and closing of the door, foreign objects such as fingers can easily get stuck in the gap between the limiting surface and the peripheral wall of the rotating shaft, which can easily cause finger pinching and poses a safety hazard. Summary of the Invention

[0004] To address the aforementioned problems in the existing technology, this invention aims to provide an anti-pinch elevator door assembly. A pivot protection column is installed between the door frame and the door leaf, and an arc-shaped groove is formed on the side of the pivot protection column near the door leaf. This arc-shaped groove adapts to the outer peripheral wall of the door leaf's rotating arm. Furthermore, an anti-pinch strip is provided on the side of the pivot protection column, extending towards the rotating arm of the door leaf. The anti-pinch strip partially covers the gap between the pivot protection column and the outer peripheral wall of the door leaf's rotating arm, reducing this gap while maintaining a constant gap during door opening and closing. This effectively prevents foreign objects such as fingers from entering the gap between the pivot protection column and the outer peripheral wall of the door leaf's rotating arm, ensuring that no hand is pinched during door opening and closing and improving safety.

[0005] The specific technical solution is as follows: An anti-pinch elevator door assembly includes a door frame and a door leaf. The door frame includes a support frame, which consists of two side frames of the door frame. The door leaf is rotatably installed inside the door frame. A rotating arm is provided on the side of the door leaf near the support frame. The outer peripheral wall of the rotating arm near the support frame is an arc surface. A pivot protection column is also provided between the door frame and the door leaf. One side of the pivot protection column is fixed to the support frame, and the other side of the pivot protection column extends toward the rotating arm of the door leaf. At the same time, a recessed arc-shaped groove that mates with the outer peripheral wall of the rotating arm is provided on the side of the pivot protection column extending toward the rotating arm. A protruding anti-pinch strip is provided on the side of the pivot protection column, extending toward the rotating arm side of the door leaf.

[0006] In the aforementioned anti-pinch elevator door assembly, the anti-pinch strip is arranged parallel to the door leaf when the door leaf is closed in place.

[0007] In the aforementioned anti-pinch elevator door assembly, the anti-pinch strip and the pivot protection column are an integrated structure.

[0008] In the aforementioned anti-pinch elevator door assembly, the pivot protection column is a hollow column.

[0009] In the aforementioned anti-pinch elevator door assembly, a light trough is provided on the pivot protection column along its length. The openings of the light troughs are arranged facing the arc-shaped grooves and are interconnected. Light strips are selectively installed inside the light troughs.

[0010] In the aforementioned anti-pinch elevator door assembly, the anti-pinch strip is disposed on the inner side of the pivot protection column near the closing direction of the door leaf.

[0011] In the aforementioned anti-pinch elevator door assembly, the rotating shaft protection column has an avoidance slope on the outer side near the door opening direction.

[0012] In the aforementioned anti-pinch elevator door assembly, the rotating shaft protection column has several sets of mounting holes on the side of the support frame near the door frame, and the several sets of mounting holes are arranged at intervals along the length direction of the rotating shaft protection column.

[0013] The positive effects of the above technical solution are: The aforementioned anti-pinch elevator door assembly features a pivot protection column between the door frame's uprights and the door leaf's rotating arm. The pivot protection column has a recessed, arc-shaped groove on its side near the rotating arm, which mates with the outer periphery of the rotating arm. This pivot protection column partially covers one side of the door leaf's rotating arm, reducing the gap between the door leaf and the door frame. Furthermore, a protruding anti-pinch strip is provided on the side of the pivot protection column, extending towards the door leaf's rotating arm. This anti-pinch strip further reduces the opening size of the gap between the pivot protection column and the outer periphery of the door leaf's rotating arm, maintaining this gap size consistently during door opening and closing. This effectively prevents fingers or other foreign objects from entering the gap between the pivot protection column and the outer periphery of the door leaf's rotating arm, ensuring that no hand is pinched during door opening and closing, making it safer and more reliable. Attached Figure Description

[0014] Figure 1 This is a structural diagram of an embodiment of an anti-pinch elevator door assembly according to the present invention; Figure 2 This is a structural diagram of the pivot protection column of an anti-pinch elevator door assembly according to the present invention.

[0015] In the attached diagram: 1. Door frame; 11. Stand; 2. Door leaf; 21. Rotary arm; 3. Rotary shaft protection column; 31. Arc-shaped groove; 32. Anti-pinch strip; 33. Light trough; 34. Avoidance slope; 35. Mounting hole. Detailed Implementation

[0016] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 2 The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.

[0017] Figure 1 This is a structural diagram of an embodiment of an anti-pinch elevator door assembly according to the present invention; Figure 2 This is a structural diagram of the pivot protection column of an anti-pinch elevator door assembly according to this utility model. Figure 1 and Figure 2As shown, the anti-pinch elevator door assembly provided in this embodiment includes: a door frame 1, a door leaf 2, a pivot protection column 3, and an anti-pinch strip 32 located on the pivot protection column 3. The door frame 1 includes a support frame 11, which serves as the two side supports of the door frame 1, providing side wall support. The door leaf 2 is rotatably installed within the door frame 1, and a rotating arm 21 is provided on the side of the door leaf 2 closest to the support frame 11. Preferably, the rotating arm 21 is connected to a drive motor, which drives the rotating arm 21 to rotate, thereby achieving the deflection of the door leaf 2 within the door frame 1 and enabling the opening and closing of the door leaf 2. Furthermore, the outer peripheral wall of the rotating arm 21 closest to the support frame 11 is an arc surface, ensuring that the distance between the outer peripheral wall of the rotating arm 21 and the support frame 11 remains constant during the opening and closing of the door leaf 2, thus facilitating the rotation of the door leaf 2.

[0018] Specifically, the pivot protection column 3 is set between the door frame 1 and the door leaf 2. One side of the pivot protection column 3 is fixed to the support 11, and the other side of the pivot protection column 3 extends toward the pivot arm 21 of the door leaf 2. At the same time, the side of the pivot protection column 3 extending toward the pivot arm 21 is provided with a recessed arc-shaped groove 31 that matches the outer peripheral wall of the pivot arm 21. The arc-shaped groove 31 covers one side of the pivot arm 21 of the door leaf 2, fills the gap between the support 11 of the door frame 1 and the outer peripheral wall of the pivot arm 21 of the door leaf 2, and protects the pivot arm 21. In addition, a protruding anti-pinch strip 32 is provided on the side of the pivot protection column 3. The anti-pinch strip 32 extends toward the pivot arm 21 of the door leaf 2. The anti-pinch strip 32 partially covers the gap between the pivot protection column 3 and the outer peripheral wall of the pivot arm 21. This can maintain the normal rotation requirements of the pivot arm 21 and reduce the gap between the pivot protection column 3 and the outer peripheral wall of the pivot arm 21. Furthermore, when the door leaf 2 is opened and closed and the pivot arm 21 is rotated, the distance between the anti-pinch strip 32 and the outer peripheral wall of the pivot arm 21 remains consistent. This minimizes the risk of fingers or other foreign objects from entering the gap between the pivot protection column 3 and the outer peripheral wall of the pivot arm 21, reducing the risk of pinching fingers and improving safety.

[0019] More specifically, when the door leaf 2 is closed, the anti-pinch strip 32 is arranged parallel to the door leaf 2, so that the gap opening between the anti-pinch strip 32 on the pivot protection column 3 and the outer peripheral wall of the pivot arm 21 of the door leaf 2 faces the plane where the door leaf 2 is located, which is perpendicular to the direction in which foreign objects such as human fingers are most likely to be inserted into the gap between the pivot arm 21 of the door leaf 2 and the pivot protection column 3, thus further improving the anti-pinch effect.

[0020] More specifically, the anti-pinch strip 32 and the pivot protection column 3 are integrated into one structure, which makes the anti-pinch strip 32 more stable and reliable when installed on the pivot protection column 3, improves the structural strength of the anti-pinch strip 32, makes it less prone to deformation problems, and makes the anti-pinch function more continuous.

[0021] More specifically, the pivot protection column 3 is a hollow column, which can effectively reduce the weight of the pivot protection column 3, reduce the burden on the door frame 1, and also reduce the use of materials and reduce costs.

[0022] More specifically, a light groove 33 is provided on the pivot protection column 3 along its length. The opening of the light groove 33 is arranged facing the arc-shaped groove 31 and is interconnected. Light strips are selectively installed in the light groove 33. That is, when it is necessary to improve the aesthetics of the elevator door and improve the safety warning effect, light strips can be installed in the light groove 33. This not only enhances the outline display effect of the elevator door, making it more beautiful and of a higher grade, but also clearly indicates the gap position between the pivot protection column 3 and the outer peripheral wall of the pivot arm 21 of the door leaf 2, further preventing the problem of hand pinching.

[0023] More specifically, the anti-pinch strip 32 is set on the inner side of the pivot protection column 3 near the closing direction of the door leaf 2, that is, the anti-pinch strip 32 is set at the final position after the door leaf 2 is closed, so that neither the door leaf 2 nor the pivot arm 21 of the door leaf 2 will touch the anti-pinch strip 32 during the opening or closing process. While ensuring the anti-pinch function, the normal opening and closing of the door leaf 2 can also be maintained, and the structural design is more reasonable.

[0024] More specifically, the pivot protection column 3 is provided with a relief slope 34 on the outer side near the opening direction of the door leaf 2. This ensures that one side of the pivot protection column 3 will not block the door leaf 2 after the door leaf 2 is opened, so that the opening angle of the door leaf 2 can be slightly greater than 90°, ensuring that the elevator door can be fully opened. At the same time, it also ensures that there is a large clearance space between the door leaf 2 and the pivot protection column 3 after the door leaf 2 is opened, which can also effectively avoid the risk of the door leaf 2 pinching a hand on the opening side, thus providing higher safety assurance.

[0025] More specifically, the pivot protection column 3 has several sets of mounting holes 35 on the side of the support frame 11 near the door frame 1, and these mounting holes 35 are spaced apart along the length of the pivot protection column 3. This allows the pivot protection column 3 to be stably installed on the support frame 11 of the door frame 1 by means of screws or other thread fasteners or expansion parts such as rivets when it is installed between the support frame 11 of the door frame 1 and the swing arm 21 of the door leaf 2. This improves the stability of the pivot protection column 3 installed on the door frame 1, thereby maintaining a reliable anti-pinch effect and making the structural design more reasonable.

[0026] The anti-pinch elevator door assembly provided in this embodiment includes a door frame 1, a door leaf 2, and a pivot protection column 3. A pivot protection column 3 is provided between the column of the door frame 1 and the pivot arm 21 of the door leaf 2. Furthermore, the outer peripheral wall of the pivot arm 21 of the door leaf 2 near the pivot protection column 3 is an arc surface. Simultaneously, an arc-shaped groove 31 is provided on the side of the pivot protection column 3 near the pivot arm 21 of the door leaf 2, which mates with the outer peripheral wall of the pivot arm 21 of the door leaf 2. This fills the gap between the door frame 1 and the door leaf 2, maintaining the opening and closing bias of the door leaf 2. When rotating, the rotating shaft protection column 3 can better fit closer to the rotating arm 21 of the door leaf 2. Furthermore, a protruding anti-pinch strip 32 is provided on the side of the rotating shaft protection column 3 and extends towards the rotating arm 21 of the door leaf 2. The anti-pinch strip 32 further reduces the size of the gap between the rotating shaft protection column 3 and the outer peripheral wall of the rotating arm 21 of the door leaf 2 and maintains the consistency of the gap opening size during the opening and closing of the door leaf 2. This effectively prevents foreign objects such as fingers from accidentally entering the gap opening and causing hand pinching, thus better meeting the anti-hand pinching requirements of elevator doors.

[0027] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-pinch elevator door assembly, comprising a door frame and a door leaf, wherein the door frame includes a support frame, the support frame being two side frames of the door frame, the door leaf being rotatably mounted within the door frame, and a rotating arm is provided on the side of the door leaf near the support frame, the outer peripheral wall of the rotating arm on the side near the support frame being an arc surface, characterized in that, A pivot protection column is also provided between the door frame and the door leaf. One side of the pivot protection column is fixed to the support frame, and the other side of the pivot protection column extends toward the pivot arm of the door leaf. At the same time, the side of the pivot protection column extending toward the pivot arm has a recessed arc-shaped groove that matches the outer peripheral wall of the pivot arm. The side of the pivot protection column has a protruding anti-pinch strip that extends toward the pivot arm side of the door leaf.

2. The anti-pinch elevator door assembly according to claim 1, characterized in that, When the door is closed, the anti-pinch strip is arranged parallel to the door.

3. The anti-pinch elevator door assembly according to claim 1, characterized in that, The anti-pinch strip and the rotating shaft protection column are an integral structure.

4. The anti-pinch elevator door assembly according to claim 1, characterized in that, The rotating shaft protective column is a hollow column.

5. The anti-pinch elevator door assembly according to claim 1, characterized in that, A light groove is formed on the rotating shaft protection column along its length. The opening of the light groove faces the arc-shaped groove and is interconnected. A light strip is selectively installed in the light groove.

6. The anti-pinch elevator door assembly according to claim 1, characterized in that, The anti-pinch strip is located on the inner side of the pivot protection column near the closing direction of the door leaf.

7. The anti-pinch elevator door assembly according to claim 1, characterized in that, The pivot protection column is provided with an avoidance slope on the outer side near the opening direction of the door leaf.

8. The anti-pinch elevator door assembly according to claim 1, characterized in that, The rotating shaft protection column has several sets of mounting holes on one side of the support frame near the door frame, and the several sets of mounting holes are arranged at intervals along the length direction of the rotating shaft protection column.

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