Non-contact linkage small flap door

Abstract

The utility model relates to a non-contact linkage small flap door in the technical field of construction hoists, which comprises a door pocket, the side end of the door pocket is provided with an upper discharge door and a lower discharge door, and the upper end of the lower discharge door is fixedly connected with a hanging plate; during feeding, the trigger head is triggered, the trigger head overcomes torsion of the torsion spring, rotates downwards by 80 degrees and pushes the lower discharging door to move downwards at the same time, so that the small turning plate door is opened, when the upper discharging door and the lower discharging door are closed, the hanging plate moves upwards and is separated from the trigger head, the small turning plate door is turned upwards by 80 degrees, and the upper discharging door and the lower discharging door are closed. Therefore, direct contact between the small flap door and the upper discharging door and between the small flap door and the lower discharging door is avoided, abrasion is reduced, collision impact is reduced, comfort, safety and stability of the elevator are improved, practicability is wide, and by means of the structures such as the tension sensor and the alarm bell which are arranged on the small flap door, the small flap door can be prevented from falling off when the small flap door runs. And personnel are warned to keep a safe distance from the device, so that safety accidents are reduced.

Description

Technical Field

[0001] The utility model relates to a non-contact linkage small flap door, in particular to a non-contact linkage small flap door used in the field of construction elevators. Background Art

[0002] Construction elevators are mainly used in high-rise building construction to carry people and goods and improve construction efficiency. The small flip plate is an important component of the construction elevator, which is used to facilitate the entry and exit of materials.

[0003] The Chinese patent CN210884813U specification discloses a small flap door for a construction elevator, including a flap and a handrail, one side of the flap is rotatably connected to the bottom plate of the cage door, the handrail is vertically arranged at one end of the front of the flap, and the width of the flap is smaller than the width of the cage door frame. It has high safety, convenient entry and exit of people and goods, and simple installation.

[0004] Although the above-mentioned small flap door solves the problem of complicated installation steps of existing flip doors, the traditional small flap door of construction elevators is designed with a contact linkage. During use, the contact parts are severely worn and even grooves are worn out, posing a safety hazard. Because it is contact-type, the noise generated during contact is also loud, and the impact force on the door when opening and closing is also large, affecting the comfort of the elevator. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the contact parts of the existing small flap doors of construction elevators are severely worn during use, and even grooves are worn out.

[0006] To solve the above problems, the utility model provides a non-contact linked small flap door, including a door frame, side ends of the door frame are provided with an upper discharge door and a lower discharge door, the upper end of the lower discharge door is fixedly connected to a pair of hanging plates, the inner side of the door frame is provided with a small flap door, a pair of side ends of the small flap door are fixedly connected to a rotating shaft, the outer end of the rotating shaft is fixedly connected to a moving rod, the end of the moving rod away from the rotating shaft is fixedly connected to a trigger head, a torsion spring is fixedly connected between the rotating shaft and the inner wall of the door frame, when the upper discharge door and the lower discharge door are closed, the pair of hanging plates are respectively located directly above the pair of trigger heads, the rotating shaft is rotatably connected to the door frame, and in the initial state, the small flap door is in a vertical state.

[0007] In the above-mentioned non-contact linked small flap door, it avoids direct contact between the small flap door and the upper discharge door and the lower discharge door, reduces wear and tear, reduces collision impact, and improves the comfort, safety, stability and practicality of the elevator.

[0008] As another improvement of the present application, circular grooves are provided at the four corners of the upper end of the small flap door, an alarm is fixedly connected to the inner bottom wall of the circular groove, a pair of side ends of the small flap door are fixedly connected to tension sensors, an end of the tension sensor away from the small flap door and the inner wall of the door frame are fixedly connected to hooks, and an elastic rope is hung between the hooks on the door frame and the hooks on the small flap door that are close to each other.

[0009] As another improved supplement of the present application, a controller is fixedly connected to the inside of the small flap door, and a protective cover with a sound transmission hole is fixedly connected to the inside of the circular groove.

[0010] As another improved supplement of the present application, the alarm is located on the inner side of the protective cover and the elastic rope is in a stretched state.

[0011] In summary, the small flap door avoids direct contact between the small flap door and the upper discharge door and the lower discharge door, reduces wear and tear, and reduces collision impact, thereby improving the comfort, safety, stability, and practicality of the elevator. At the same time, it can also warn personnel to keep a safe distance from the small flap door when it is running, thereby reducing the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the first and second implementation modes of the present application;

[0013] Figure 2 This is a schematic diagram of the downward movement of the hanging plate in the first embodiment of the present application;

[0014] Figure 3 This is a schematic diagram of the opening of the small flap door in the first embodiment of the present application;

[0015] Figure 4 This is a top view schematic diagram of a small flap door according to the first embodiment of the present application;

[0016] Figure 5 This is a three-dimensional schematic diagram of the alarm bell of the second embodiment of the present application.

[0017] Description of the numbers in the figure:

[0018] 1. Door frame; 2. Upper discharge door; 3. Lower discharge door; 4. Rotating shaft; 5. Moving rod; 6. Trigger head; 7. Torsion spring; 8. Small flap door; 9. Hanging plate; 10. Round groove; 11. Alarm; 12. Protective cover; 13. Tension sensor; 14. Hook; 15. Elastic rope. DETAILED DESCRIPTION

[0019] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0020] The first implementation method:

[0021] Figure 1-4 A non-contact linked small flap door is shown, comprising a door frame 1, side ends of the door frame 1 are provided with an upper discharge door 2 and a lower discharge door 3, the upper end of the lower discharge door 3 is fixedly connected with a pair of hanging plates 9, the inner side of the door frame 1 is provided with a small flap door 8, a pair of side ends of the small flap door 8 are fixedly connected with a rotating shaft 4, the outer end of the rotating shaft 4 is fixedly connected with a moving rod 5, the end of the moving rod 5 away from the rotating shaft 4 is fixedly connected with a trigger head 6, a torsion spring 7 is fixedly connected between the rotating shaft 4 and the inner wall of the door frame 1, when the upper discharge door 2 and the lower discharge door 3 are closed, a pair of hanging plates 9 are respectively located directly above the pair of trigger heads 6, the rotating shaft 4 is rotatably connected to the door frame 1, and in the initial state, the small flap door 8 is in a vertical state.

[0022] When the upper discharge door 2 and the lower discharge door 3 are opened, the lower discharge door 3 drives the hanging plate 9 to move downward and touches the trigger head 6. The trigger head 6 overcomes the torsion force of the torsion spring 7 under the action of the hanging plate 9, drives the moving rod 5 and the rotating shaft 4 to rotate, thereby driving the small flap door 8 to move downward. Figure 1 The vertical state in becomes Figure 3 The small flap door 8 is in a horizontal state in the middle, thereby opening the small flap door 8 and making it flush with the floor; when the upper discharge door 2 and the lower discharge door 3 are closed, the hanging plate 9 drives the lower discharge door 3 to move upward, and the lower discharge door 3 loses its squeezing effect on the trigger head 6 and separates from the trigger head 6. The rotating shaft 4 and the moving rod 5 rotate under the action of the torsion spring 7 and drive the small flap door 8 to flip upward by 80 degrees, and the upper discharge door 2 and the lower discharge door 3 are closed and combined. Figure 1 As shown, the present application effectively avoids direct contact between the small flap door 8 and the upper discharge door 2 and the lower discharge door 3, reducing wear and tear. During the entire process, the small flap door 8 is always in a smooth operating state, reducing collision impact, thereby improving the comfort, safety, stability and practicality of the elevator.

[0023] The second implementation method:

[0024] This implementation mode adds the following structure based on the first implementation mode, and the rest of the structure is consistent with the first implementation mode, as follows:

[0025] Figure 5It is shown that circular grooves 10 are provided at the four corners of the upper end of the small flap door 8, and an alarm 11 is fixedly connected to the inner bottom wall of the circular groove 10, and a pair of side ends of the small flap door 8 are fixedly connected with tension sensors 13, and the end of the tension sensor 13 away from the small flap door 8 and the inner wall of the door frame 1 are fixedly connected with hooks 14, and an elastic rope 15 is hung between the hook 14 on the door frame 1 and the hooks 14 on the small flap door 8 that are close to each other. The elastic rope 15 is detachable and can be removed when not in use, or it can be replaced by personnel when it loses its elasticity. A controller is fixedly connected to the inside of the small flap door 8, and a protective cover 12 with a sound transmission hole is fixedly connected to the inside of the circular groove 10. The alarm 11 is located on the inner side of the protective cover 12, and the elastic rope 15 is in a stretched state. The elastic force of the elastic rope 15 is much smaller than the elastic force of the torsion spring 7, so it will not affect the stability of the initial state of the small flap door 8.

[0026] During use, when the small flap door 8 is in the initial state, the elastic rope 15 is also in a static state, and its tension on the tension sensor 13 remains unchanged. When the small flap door 8 flips upward, it will drive the elastic rope 15 between the door frame 1 and the tension sensor 13 to move. When the tension sensor 13 detects a change in tension, the controller starts the alarm 11 and sends out a warning sound to alert the surrounding personnel when the small flap door 8 flips over, so that they can keep a safe distance from the small flap door 8. After the small flap door 8 rotates to a horizontal state, as the small flap door 8 is static, the length of the elastic rope 15 remains unchanged, and the tension on the tension sensor 13 is stable. At this time, the controller turns off the alarm 11 and releases the alarm signal. The utility model can send out a warning signal when the small flap door 8 is working, reminding the operator to pay attention to the state of the flip door, ensure operational safety, and reduce the probability of safety accidents.

[0027] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A non-contact linkage small flap door, comprising a door frame (1), characterized in that: An upper discharge door (2) and a lower discharge door (3) are provided at the side ends of the door casing (1), a pair of hanging plates (9) are fixedly connected to the upper end of the lower discharge door (3), a small flap door (8) is provided on the inner side of the door casing (1), a pair of side ends of the small flap door (8) are fixedly connected to a rotating shaft (4), an outer end of the rotating shaft (4) is fixedly connected to a moving rod (5), an end of the moving rod (5) away from the rotating shaft (4) is fixedly connected to a trigger head (6), a torsion spring (7) is fixedly connected between the rotating shaft (4) and the inner wall of the door casing (1), when the upper discharge door (2) and the lower discharge door (3) are closed, the pair of hanging plates (9) are respectively located directly above the pair of trigger heads (6), the rotating shaft (4) is rotatably connected to the door casing (1), and in an initial state, the small flap door (8) is in a vertical state.

2. A non-contact linkage small flap door according to claim 1, characterized in that: Circular grooves (10) are provided at the four corners of the upper end of the small flap door (8), an alarm bell (11) is fixedly connected to the inner bottom wall of the circular groove (10), a pair of side ends of the small flap door (8) are fixedly connected to tension sensors (13), an end of the tension sensor (13) away from the small flap door (8) and an inner wall of the door frame (1) are fixedly connected to hooks (14), and an elastic rope (15) is hung between the hooks (14) on the door frame (1) and the hooks (14) on the small flap door (8) that are close to each other.

3. A non-contact linkage small flap door according to claim 2, characterized in that: A controller is fixedly connected to the interior of the small flap door (8), and a protective cover (12) with a sound transmission hole is fixedly connected to the interior of the circular groove (10).

4. The non-contact linkage small flap door according to claim 3, characterized in that: The alarm bell (11) is located inside the protective cover (12), and the elastic rope (15) is in a stretched state.

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