High-strength impact-resistant elevator landing door

Abstract

The utility model relates to the field of elevators, in particular to a high-strength impact-resistant elevator landing door which comprises a panel, guide rods are fixedly connected to the upper portion and the lower portion between the opposite sides of the two sides of an inner cavity of the panel respectively, moving blocks are slidably connected to the two sides of the surface of each guide rod respectively, and springs A are fixedly connected to the opposite sides of the moving blocks respectively. Supporting plates are hinged to the front portions of the moving blocks correspondingly, protective plates are hinged to the front portions of the supporting plates correspondingly, the protective plates make contact with an inner cavity of the panel, positioning rods are fixedly connected to the four corners of the rear portion of each protective plate correspondingly, hollow columns are arranged on the surfaces of the positioning rods correspondingly, and springs B are fixedly connected to the front portions of the hollow columns; the spring B is arranged on the surface of the positioning rod in a sleeving mode, and the front portion of the spring A is fixedly connected with the rear portion of the protection plate. By means of matched use of the structure, the elevator landing door protection device has the advantage that when the device is subjected to forward impact, the elevator landing door can be protected.

Description

Technical Field

[0001] This utility model relates to the field of elevators, and in particular to a high-strength, impact-resistant elevator landing door. Background Technology

[0002] Elevator landing doors, also known as hall doors, are safety partitions between the elevator and the floors. They consist of components such as doors, guide rails, pulleys, sliders, door frames, and sills. They are closed doors with a minimum clearance of 2 meters. The landing doors are opened and closed by door-opening blades installed on the car door. When closed, the mechanical lock hook engages and closes with the electrical interlock contacts of the car door, activating the elevator control circuit before the elevator can start operating. Landing doors serve a fire-resistant function, dividing fire compartments. Strict regulations govern the gaps between the door panels and between the landing doors and the columns, lintels, and sills when closed to ensure passenger safety. During elevator operation, landing doors must remain closed; passengers must not open them unauthorized to prevent accidents.

[0003] The applicant discovered through a search that a Chinese patent discloses "A High-Strength Impact-Resistant Elevator Landing Door," with publication (announcement) number "CN211569830U." This utility model discloses an impact-resistant, center-parted, fireproof, and heat-insulating elevator landing door, including a landing door device, door panel assembly one, door panel assembly two, a lintel, side pillar one, side pillar two, and a sill. Door panel assembly one and door panel assembly two are respectively installed on the sill, which are respectively connected to the bottom of side pillar one and side pillar two. The lintel is respectively connected to... At the top of side columns one and two, door panel assembly one and door panel assembly two are respectively connected to the hanging door panel of the landing door device via door bolts. Both door panel assembly one and door panel assembly two include a door panel welded frame mechanism, a heat insulation layer, and a heat insulation layer fixing plate. The door panel welded frame mechanism consists of door panel body one, door panel body two, door panel C-shaped cavity one, door panel C-shaped cavity two, door panel vertical reinforcing ribs, door panel upper end cap, and upper fireproof baffle. The door panel upper end cap and upper fireproof baffle are located at the upper end of the door panel welded frame mechanism. Beneficial effects: It can effectively slow down the speed at which flames enter the elevator shaft and improve fire resistance and heat insulation performance. However, this equipment is not suitable for protecting the elevator landing doors when the elevator is subjected to a frontal impact. Utility Model Content

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A high-strength, impact-resistant elevator landing door includes a panel. Guide rods are fixedly connected to the upper and lower parts of the inner cavity of the panel, respectively. Movable blocks are slidably connected to both sides of the surface of each guide rod. Springs A are fixedly connected to the opposite side of each movable block. Support plates are hinged to the front of each movable block. Protective plates are hinged to the front of each support plate. The protective plates are in contact with the inner cavity of the panel.

[0006] Furthermore, positioning rods are fixedly connected to the four corners of the rear part of the protective plate, and hollow columns are provided on the surface of each positioning rod. The rear part of the hollow column is fixedly connected to the front part of the panel, the positioning rod is movably connected to the hollow column, and a spring B is fixedly connected to the front part of the hollow column. The spring B is sleeved on the surface of the positioning rod, and the front part of the spring A is fixedly connected to the rear part of the protective plate.

[0007] Furthermore, a damper is fixedly connected to the middle of the rear part of the protective plate, and the rear part of the damper is fixedly connected to the front part of the panel.

[0008] Furthermore, the spring A is sleeved on the surface of the guide rod, and the opposite side of each spring A is fixedly connected to the inner sidewall of the panel.

[0009] Furthermore, a guide seat is provided at the lower part of the panel, and a guide groove is provided in the middle of the upper part of the guide seat, and the guide groove is movably connected to the panel.

[0010] Furthermore, a limiting groove is provided on the rear side of the upper part of the guide seat, and a limiting frame is movably connected to the inner cavity of the limiting groove. The front part of the limiting frame is fixedly connected to the rear part of the panel.

[0011] Furthermore, a fixed flange is fixedly connected to the surface of the damper, and the rear part of the fixed flange is fixedly connected to the front part of the panel.

[0012] Furthermore, a fixing block is fixedly connected to the upper part of the limiting frame, and the front part of the fixing block is fixedly connected to the rear part of the panel.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] In this invention, when the device is subjected to an external impact, the protective plate moves, which in turn drives the support plate to move. The support plate then drives the moving block to move, and the moving block compresses its spring A. As the protective plate moves, the positioning rod retracts it into the hollow column, and the protective plate compresses its spring B. When spring A rebounds, it drives the moving block to move, which in turn drives the support plate to move. The support plate then drives the protective plate to move. During the movement of the protective plate, a damper counteracts the impact force, and spring B stretches the protective plate, providing protection. By utilizing the above structures, this invention offers the following advantages: it can protect the elevator landing door when the device is subjected to a positive impact.

[0015] This utility model uses a fixing block to reinforce the space between the limiting frame and the panel, thereby achieving the effect of limiting the space between the limiting frame and the panel. It also uses a fixing flange to reinforce the space between the damper and the panel, thereby achieving the effect of limiting the damper. When the panel is opened, closed, or shut, the limiting groove limits the direction of movement of the panel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is an exploded structural diagram of the present invention.

[0018] Figure 3 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0019] Figure 4 This is a schematic diagram of the guide seat structure of this utility model.

[0020] In the diagram: 1. Panel; 2. Guide rod; 3. Moving block; 4. Spring A; 5. Support plate; 6. Protective plate; 7. Positioning rod; 8. Hollow column; 9. Spring B; 10. Damper; 11. Guide seat; 12. Guide groove; 13. Limiting groove; 14. Limiting frame; 15. Fixed flange; 16. Fixed block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0022] The device's "front, back, left, and right" perspectives are... Figure 1 The orientation of the attached diagram is the reference.

[0023] like Figure 1-4As shown, a high-strength impact-resistant elevator landing door has guide rods 2 fixedly connected to the upper and lower parts of opposite sides of the inner cavity of panel 1. Moving blocks 3 are slidably connected to both sides of the surface of each guide rod 2. Springs A4 are fixedly connected to the opposite side of each moving block 3. Support plates 5 are hinged to the front of each moving block 3, and protective plates 6 are hinged to the front of each support plate 5. The protective plates 6 contact the inner cavity of panel 1. During operation, when the device is subjected to external impact, the protective plates 6 move, which in turn drives the support plates 5 to move. The movement of the support plates 5 then drives the moving blocks 3 to move, and the moving blocks 3 compress their springs A4. When the protective plates 6 move, they are retracted into the hollow column 8 by positioning rods 7, and then compressed by springs B9. When springs A4 rebound, they drive the moving blocks 3 to move, which in turn drives the support plates 5 to move. The movement of the support plates 5 then drives the protective plates 6 to move.

[0024] like Figure 3 As shown, in some embodiments, positioning rods 7 are fixedly connected to the four corners of the rear part of the protective plate 6, and hollow columns 8 are provided on the surface of each positioning rod 7. The rear part of the hollow column 8 is fixedly connected to the front part of the panel 1, and the positioning rod 7 is movably connected to the hollow column 8. A spring B9 is fixedly connected to the front part of the hollow column 8. The spring B9 is sleeved on the surface of the positioning rod 7, and the front part of the spring A4 is fixedly connected to the rear part of the protective plate 6. When the protective plate 6 moves, the spring B9 is used to stretch the protective plate 6 to protect it.

[0025] like Figure 2 As shown, in some embodiments, a damper 10 is fixedly connected to the middle of the rear part of the protective plate 6. The rear part of the damper 10 is fixedly connected to the front part of the panel 1. When the protective plate 6 moves during operation, the damper 10 is used to offset the impact force on the protective plate 6.

[0026] like Figure 3 As shown, in some embodiments, spring A4 is sleeved on the surface of guide rod 2, and the opposite side of each spring A4 is fixedly connected to the inner sidewall of panel 1. During operation, the guide rod 2 and other structures are used in conjunction to achieve the effect of limiting the position of spring A4.

[0027] like Figure 1-4 As shown, in some embodiments, a guide seat 11 is provided at the lower part of the panel 1, and a guide groove 12 is provided at the middle of the upper part of the guide seat 11. The guide groove 12 is movably connected to the panel 1.

[0028] like Figure 4As shown, in some embodiments, a limiting groove 13 is provided on the rear side of the upper part of the guide seat 11, and a limiting frame 14 is movably connected to the inner cavity of the limiting groove 13. The front part of the limiting frame 14 is fixedly connected to the rear part of the panel 1. During operation, when the panel 1 is opened, closed, or shut down, the limiting groove 13 is used to limit the direction of movement of the panel 1.

[0029] like Figure 2 As shown, in some embodiments, a fixed flange 15 is fixedly connected to the surface of the damper 10. The rear part of the fixed flange 15 is fixedly connected to the front part of the panel 1. During operation, the fixed flange 15 is used to reinforce the damper 10 and the panel 1, thereby achieving the effect of limiting the position of the damper 10.

[0030] like Figure 4 As shown, in some embodiments, a fixing block 16 is fixedly connected to the upper part of the limiting frame 14. The front part of the fixing block 16 is fixedly connected to the rear part of the panel 1. During operation, the fixing block 16 is used to reinforce the limiting frame 14 and the panel 1, thereby achieving the effect of limiting the limiting frame 14.

[0031] The working principle of this utility model is as follows: When the device is subjected to external impact, the protective plate 6 moves, which in turn drives the support plate 5 to move. The support plate 5 then drives the moving block 3 to move, and the moving block 3 compresses its spring A4. When the protective plate 6 moves, it is retracted into the hollow column 8 by the positioning rod 7, and then the protective plate 6 compresses its spring B9. When the spring A4 rebounds, it drives the moving block 3 to move, which in turn drives the support plate 5 to move. The support plate 5 then drives the protective plate 6 to move. When the protective plate 6 moves, the damper 10 counteracts the impact force on it, and the spring B9 stretches the protective plate 6 during its movement, thus protecting it.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-strength, impact-resistant elevator landing door, comprising a panel (1), characterized in that: Guide rods (2) are fixedly connected to the upper and lower parts of the inner cavity of the panel (1) respectively. Movable blocks (3) are slidably connected to both sides of the surface of each guide rod (2). Spring A (4) is fixedly connected to the opposite side of each movable block (3). Support plates (5) are rotatably connected to the front part of each movable block (3). Protective plates (6) are rotatably connected to the front part of each support plate (5). The protective plates (6) are in contact with the inner cavity of the panel (1).

2. The high-strength impact-resistant elevator landing door according to claim 1, characterized in that: The protective plate (6) is fixedly connected to four corners at the rear. Each of the positioning rods (7) has a hollow column (8) on its surface. The rear of the hollow column (8) is fixedly connected to the front of the panel (1). The positioning rod (7) is movably connected to the hollow column (8). The front of the hollow column (8) is fixedly connected to a spring B (9). The spring B (9) is sleeved on the surface of the positioning rod (7). The front of the spring A (4) is fixedly connected to the rear of the protective plate (6).

3. A high-strength impact-resistant elevator landing door according to claim 1, characterized in that: A damper (10) is fixedly connected to the middle of the rear part of the protective plate (6), and the rear part of the damper (10) is fixedly connected to the front part of the panel (1).

4. A high-strength impact-resistant elevator landing door according to claim 1, characterized in that: The spring A (4) is sleeved on the surface of the guide rod (2), and the opposite side of each spring A (4) is fixedly connected to the inner side wall of the panel (1).

5. A high-strength impact-resistant elevator landing door according to claim 1, characterized in that: The lower part of the panel (1) is provided with a guide seat (11), and the middle part of the upper part of the guide seat (11) is provided with a guide groove (12), which is movably connected to the panel (1).

6. A high-strength impact-resistant elevator landing door according to claim 5, characterized in that: A limiting groove (13) is provided on the rear side of the upper part of the guide seat (11), and a limiting frame (14) is movably connected to the inner cavity of the limiting groove (13). The front part of the limiting frame (14) is fixedly connected to the rear part of the panel (1).

7. A high-strength impact-resistant elevator landing door according to claim 3, characterized in that: The damper (10) is fixedly connected to a fixed flange (15), and the rear part of the fixed flange (15) is fixedly connected to the front part of the panel (1).

8. A high-strength impact-resistant elevator landing door according to claim 6, characterized in that: The upper part of the limiting frame (14) is fixedly connected to a fixing block (16), and the front part of the fixing block (16) is fixedly connected to the rear part of the panel (1).

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