Anti-pinch device for elevator landing door

Abstract

The anti-pinch device for the elevator landing door comprises a transverse plate, two vertical plates and two reinforcing abutting plates, the transverse plate is telescopic, and first notches are formed in the two symmetrical sides of the top face of the transverse plate; the two vertical plates are symmetrically arranged on the two sides of the transverse plate, the vertical plates comprise the left side vertical plate, the middle vertical plate and the right side vertical plate, a second notch is formed in the bottom of the middle vertical plate, a rotating shaft connected with the transverse plate is movably arranged in the second notch, and the rotating shaft extends in the direction of the adjacent first notch to be provided with a supporting plate; the free end of the supporting plate slidably abuts against the reinforcing abutting plate. Therefore, on the basis that folding is convenient, the reinforcing abutting plate, the transverse plate and the two vertical plates can jointly form two stable triangular structures to jointly bear clamping force generated when an elevator door is closed, and therefore the structural stability and the bearing capacity of the whole anti-pinch device are remarkably enhanced, and safety and reliability of elevator maintenance are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator maintenance, in particular to an anti-pinch device for elevator floor doors. Background Art

[0002] When maintenance personnel are inspecting the elevator car roof, they need to move the car to the floor below their current floor to reach the top of the car, or make the top of the car level with the floor door slab to facilitate access through the floor door to the top of the car for maintenance work. During the above inspection process, the floor door needs to remain open.

[0003] Currently, anti-pinch devices are commonly placed between elevator landing doors to facilitate opening. For example, Chinese Utility Model Patent Publication No. CN220723234U discloses an anti-pinch device for elevator landing doors, comprising: a first clamping member, a first telescopic plate, a second clamping member, and a second telescopic plate. The first end of the first clamping member is clamped to one elevator landing door, and the second end of the first clamping member is connected to the first end of the first telescopic plate, with a latching tooth provided on the surface of the first telescopic plate. The first end of the second clamping member is clamped to the other elevator landing door, and the second end of the second clamping member is connected to the first end of the second telescopic plate. When maintenance personnel need to inspect the elevator, the device is installed on both sides of the elevator landing doors to prevent them from closing and facilitate folding and storage.

[0004] However, this design still has some defects. For example, its overall shape after installation is U-shaped. This design only uses the horizontal plate between the two vertical plates to withstand the clamping force when the elevator door is closed. Since the horizontal plate is a non-integrated retractable component, its structural inconsistency may lead to insufficient strength when subjected to force, which in turn has an adverse effect on the stability and service life of the overall structure. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the purpose of the utility model is to propose an anti-pinch device for elevator floor doors. On the basis of easy folding, the reinforced support plate is set up to form two stable triangular structures together with the horizontal plate and two vertical plates, and jointly bear the clamping force generated when the elevator door is closed, thereby significantly enhancing the structural stability and load-bearing capacity of the entire anti-pinch device, and ensuring the safety and reliability of elevator maintenance.

[0007] To achieve the above-mentioned purpose, the utility model proposes an anti-pinch device for elevator floor doors, comprising a horizontal plate, two vertical plates and two reinforced abutment plates, wherein the horizontal plate is retractable and has a first notch on both sides of its top surface symmetrically; the two vertical plates are symmetrically arranged on both sides of the horizontal plate, and the vertical plates include a left vertical plate, a middle vertical plate and a right vertical plate, wherein the bottoms of the left vertical plate and the right vertical plate protrude from the bottom of the middle vertical plate, and the horizontal plate is located below the middle vertical plate; a second notch is provided at the bottom of the middle vertical plate, and a rotating shaft connected to the horizontal plate is movably provided in the second notch, and a support plate is extended from the rotating shaft in the direction of the adjacent first notch; one end of the reinforced abutment plate is rotatably provided on the corresponding middle vertical plate, and the other end of the reinforced abutment plate is abutted at the corner of the adjacent first notch, and the free end of the support plate is in sliding contact with the reinforced abutment plate.

[0008] The anti-pinch device for elevator floor doors of the present invention is easy to fold. Through the provided reinforcement abutment plate, it can form two stable triangular structures together with the horizontal plate and two vertical plates, so that the horizontal plate, the vertical plate and the reinforcement abutment plate can work together to jointly bear the clamping force generated when the elevator door is closed, thereby significantly enhancing the structural stability and load-bearing capacity of the entire anti-pinch device and ensuring the safety and reliability of elevator maintenance.

[0009] In addition, the anti-pinch device for elevator landing doors proposed in the application may also have the following additional technical features:

[0010] Specifically, when the horizontal plate is perpendicular to the vertical plate, both end surfaces of the horizontal plate are respectively on the same vertical plane as the outer facades of the corresponding middle vertical plate, and the bottom surface of the horizontal plate is on the same horizontal plane as the bottom surface of the vertical plate.

[0011] Specifically, the support plate is arranged parallel to the transverse plate.

[0012] Specifically, the free end of the support plate is arranged in an inclined surface.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic structural diagram of an anti-pinch device for elevator landing doors according to one embodiment of the utility model;

[0016] Figure 2This is an exploded view of the structure of an anti-pinch device for elevator landing doors according to one embodiment of the utility model;

[0017] Figure 3 This is a schematic cross-sectional structure diagram of the rotation change of the horizontal plate of the anti-pinch device for elevator landing doors according to one embodiment of the utility model;

[0018] Figure 4 This is a schematic structural diagram of an anti-pinch device for elevator floor doors after being stored according to one embodiment of the utility model.

[0019] As shown in the figure: 10, horizontal plate; 11, first notch; 20, vertical plate; 21, left vertical plate; 22, middle vertical plate; 221, second notch; 23, right vertical plate; 30, reinforcement plate; 40, rotating shaft; 50, support plate. DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0021] The anti-pinch device for elevator landing doors according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0022] like Figure 1-Figure 4 As shown, the anti-pinch device for elevator landing doors according to an embodiment of the present invention may include a horizontal plate 10 , two vertical plates 20 and two reinforcing abutment plates 30 .

[0023] The horizontal plate 10 is retractable and has first notches 11 symmetrically formed on both sides of its top surface.

[0024] It is understandable that the retractable horizontal plate 10 facilitates the positioning of elevators with different floor door distances.

[0025] The two vertical plates 20 are symmetrically arranged on both sides of the horizontal plate 10 . The vertical plates 20 include a left vertical plate 21 , a middle vertical plate 22 and a right vertical plate 23 .

[0026] It can be understood that the vertical plate 20 has a U-shaped structure when viewed from above, so as to conveniently surround the side of the elevator floor door and prevent the elevator floor door from being separated from the vertical plate 20.

[0027] The bottoms of the left and right vertical panels 21, 23 protrude beyond the bottom of the middle vertical panel 22, and the cross panel 10 is located below the middle vertical panel 22. A second notch 221 is defined at the bottom of the middle vertical panel 22. A pivot 40 movably connected to the cross panel 10 is positioned within the second notch 221. A support plate 50 extends from the pivot 40 toward the adjacent first notch 11.

[0028] It can be understood that the horizontal board 10 and the vertical board 20 are rotatably connected via the rotating shaft 40 to adjust the angle between the horizontal board 10 and the vertical board 20, thereby facilitating transportation and storage.

[0029] One end of the reinforcing plate 30 is rotatably mounted on the corresponding middle vertical plate 22 , and the other end of the reinforcing plate 30 is abutted against the corner of the adjacent first notch 11 , and the free end of the support plate 50 is in sliding contact with the reinforcing plate 30 .

[0030] Specifically, in the actual process of limiting the elevator floor door, the relevant personnel first rotate the horizontal plate 10 and the vertical plate 20 until they are perpendicular. During the process, the reinforcement plate 30 can be rotated under the steering force of the support plate 50 until the free end of the reinforcement plate 30 is against the corner of the first notch 11. The support plate 50 and the first notch 11 can jointly limit the reinforcement plate 30. At this time, the horizontal plate 10 and the vertical plate 20 are in a vertical state.

[0031] The entire device is then placed between the elevator landing doors, and the horizontal plate 10 is adjusted to extend and retract until the two vertical plates 20 are clamped against the sides of the corresponding elevator landing doors. At this point, the reinforced abutment plate 30, the horizontal plate 10, and the two vertical plates 20 together form two stable triangular structures. This allows the horizontal plate 10, vertical plates 20, and reinforced abutment plate 30 to work together to bear the clamping force generated when the elevator doors close, significantly enhancing the structural stability and load-bearing capacity of the entire anti-pinch device, ensuring the safety and reliability of elevator maintenance.

[0032] After the maintenance is completed, the relevant personnel can rotate the horizontal plate 10 so that it and the two vertical plates 20 are folded into a strip structure for easy storage and transportation.

[0033] In one embodiment of the present invention, Figure 3 As shown, when the horizontal board 10 and the vertical board 20 are in a vertical state, the two end surfaces of the horizontal board 10 are respectively on the same vertical plane as the outer facades of the corresponding middle vertical board 22, and the bottom surface of the horizontal board 10 and the bottom surface of the vertical board 20 are on the same horizontal plane.

[0034] It should be noted that the outer facade of the intermediate vertical panel 22 described in this embodiment is the opposite side of the two intermediate vertical panels 22. This design enables the vertical panel 20 to be stuck on the side facing the elevator floor door, and the outer facade of the intermediate vertical panel 22 and the two end faces of the horizontal panel 10 can respectively offset the two sides of the elevator floor door, which is beneficial to the stability of the overall structure.

[0035] In one embodiment of the present invention, Figure 4 As shown, the support plate 50 is arranged parallel to the horizontal plate 10. It can be understood that when the horizontal plate 10 and the two vertical plates 20 are folded into a strip structure, the support plate 50 can be folded in together with the horizontal plate 10, avoiding the situation where the support plate 50 is still supported on the outside of the strip structure, and at the same time it is beneficial to reinforce the folding of the support plate 30.

[0036] Further, if Figure 2 and Figure 3 As shown, the free end of the support plate 50 is arranged in an inclined surface. When the horizontal plate 10 and the vertical plate 20 are perpendicular to each other, this design helps the support plate 50 to stably support the reinforcement plate 30.

[0037] In summary, the anti-pinch device for elevator floor doors in the embodiment of the utility model, the anti-pinch device for elevator floor doors of the utility model, on the basis of easy folding, can form two stable triangular structures together with the horizontal plate and two vertical plates through the provided reinforcement abutment plate, so that the horizontal plate, vertical plate and reinforcement abutment plate can work together to jointly bear the clamping force generated when the elevator door is closed, thereby significantly enhancing the structural stability and load-bearing capacity of the entire anti-pinch device, and ensuring the safety and reliability of elevator maintenance.

[0038] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. An anti-pinch device for elevator landing doors, characterized in that: It comprises a horizontal plate (10), two vertical plates (20) and two reinforcing abutment plates (30), wherein: The transverse plate (10) is retractable and has first notches (11) symmetrically formed on both sides of its top surface; The two vertical plates (20) are symmetrically arranged on both sides of the horizontal plate (10), and the vertical plates (20) include a left vertical plate (21), a middle vertical plate (22) and a right vertical plate (23), wherein: The bottoms of the left vertical plate (21) and the right vertical plate (23) both protrude from the bottom of the middle vertical plate (22), and the horizontal plate (10) is located below the middle vertical plate (22); A second notch (221) is provided at the bottom of the middle vertical plate (22), a rotating shaft (40) connected to the horizontal plate (10) is movably provided in the second notch (221), and a support plate (50) is provided on the rotating shaft (40) extending toward the adjacent first notch (11); One end of the reinforcing plate (30) is rotatably mounted on the corresponding intermediate vertical plate (22), and the other end of the reinforcing plate (30) is abutted against the corner of the adjacent first notch (11), and the free end of the support plate (50) is in sliding contact with the reinforcing plate (30).

2. The anti-pinch device for elevator landing doors according to claim 1, characterized in that: When the horizontal plate (10) and the vertical plate (20) are in a vertical state, the two end surfaces of the horizontal plate (10) are respectively on the same vertical plane as the outer facades of the corresponding intermediate vertical plate (22), and the bottom surface of the horizontal plate (10) is on the same horizontal plane as the bottom surface of the vertical plate (20).

3. The anti-pinch device for elevator landing doors according to claim 1, characterized in that: The support plate (50) is arranged parallel to the transverse plate (10).

4. The anti-pinch device for elevator landing doors according to claim 3, characterized in that: The free end of the support plate (50) is arranged in an inclined plane.

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