Floor safety door of construction hoist

Abstract

The utility model provides a floor safety door of a construction elevator, which relates to the technical field of construction elevators and comprises a construction elevator car, a car door, a construction platform corresponding to the construction elevator car and a door frame on the construction platform, a linkage mechanism is arranged on the surface of the car door, and a safety door is slidably connected in the door frame. The linkage mechanism comprises a linkage block installed at the bottom of the lift car door, a hook claw is hinged to the linkage block through a lug plate, a storage box installed on the construction elevator lift car is arranged below the hook claw, a lifting arc-shaped plate is hinged to the door frame, the hook claw is driven by the lift car door to lift the lifting arc-shaped plate, a limiting rotary buckle is made to be separated from a limiting buckle groove, and the lifting arc-shaped plate is lifted by the lifting arc-shaped plate. The lower safety door does not need to be opened and closed manually, the automatic linkage lifting effect is achieved, the lower safety door hooks the limiting buckle groove through the limiting rotary buckle below the lifting arc-shaped plate, the lower safety door cannot be opened from the interior, and therefore the lower safety door is prevented from being lifted manually, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction elevators, in particular to a floor safety door for a construction elevator. Background Art

[0002] A construction elevator is a type of vertical transportation equipment that is very common at construction sites. It is mainly used to transport building materials and construction workers. It can move up and down through the elevator's external frame, effectively solving the problem of transporting personnel and materials in large buildings.

[0003] After searching the public documents, the utility model patent with patent number CN208182431U discloses an integrated structure of a construction elevator passage and a floor door. The patent mainly ensures the safety, efficiency and simple operation of the vertical transportation of the construction elevator through the structure, saves construction costs and construction period, and the structure has good integrity, can be tool-based and standardized production, and has a high reuse rate; however, the door structure still has the following defects:

[0004] After the above-mentioned construction elevator reaches the specified height position, although it can open its own car door, it is difficult to open the car door and the door of the construction platform at the same time. Therefore, it is necessary to open the door of the construction platform in addition to the car door, which is more time-consuming and laborious. Utility Model Content

[0005] The utility model aims to provide a floor safety door for a construction elevator, so as to solve the problem in the above-mentioned background technology that it is difficult to open the car door and simultaneously open the door of the construction platform in linkage.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a construction elevator floor safety door, comprising a construction elevator car, a car door, a construction platform corresponding to the construction elevator car, and a door frame on the construction platform, wherein a linkage mechanism is provided on the surface of the car door, and a safety door is slidably connected in the door frame;

[0007] The linkage mechanism comprises a linkage block installed at the bottom of the car door, the linkage block is hinged with a hook through an ear plate, and a storage box installed on the construction elevator car is arranged below the hook;

[0008] An upwardly lifting arc plate is hinged on the door frame.

[0009] Preferably, the safety door comprises a lower safety door, an upper safety door is arranged above the lower safety door, a baffle is arranged at the bottom of the upper safety door, and the baffle is engaged with the lower safety door.

[0010] Preferably, both sides of the lower safety door are slidably connected with first slide rails arranged on the door frame, a second slide rail is arranged on one side of the first slide rail, and a locking plate is arranged at the bottom end of the second slide rail.

[0011] Preferably, the length of the second slide rail is half of that of the first slide rail.

[0012] Preferably, the bottom end of the upwardly-lifting arc-shaped plate is fixedly connected with a limit buckle, and the limit buckle is provided with a limit buckle groove at a corresponding position of the bottom of the door frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The hook claw is driven by the car door to lift the upward arc plate, so that the limit buckle is disengaged from the limit buckle groove, thereby driving the lower safety door to rise. There is no need to manually open and close the door, and the effect of automatic linkage lifting is achieved. The lower safety door is hooked to the limit buckle groove through the limit buckle under the upward arc plate and cannot be opened from the inside, thereby preventing the lower safety door from being lifted manually and improving safety.

[0015] 2. Through the setting of the hook, the hook can rotate 90°. When the hook descends with the car door and enters the storage box, it will fold up and be stored in it. When the hook rises with the car door, it comes out of the storage box and will open naturally due to gravity. It has strong reliability. The baffle can prevent the lower safety door from falling completely to the ground, and can also drive the upper safety door to rise when the lower safety door rises, forming a linkage door structure. The first slide rail can make the lower safety door move freely, and the second slide rail and the positioning plate can limit the moving distance of the upper safety door. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the linkage mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the explosion structure of the safety door of the utility model;

[0019] Figure 4 It is a schematic diagram of the safety door linkage opening structure of the utility model.

[0020] Numbers in the figure: 1. Construction elevator car; 2. Car door; 3. Linkage block; 4. Door frame; 5. Safety door; 501. Lower safety door; 502. Upper safety door; 503. Baffle; 6. Hook; 7. Storage box; 8. Lifting arc plate; 9. First slide rail; 10. Second slide rail; 11. Positioning plate; 12. Limiting buckle; 13. Limiting buckle groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 As shown, the utility model provides a technical solution: a construction elevator floor safety door, comprising a construction elevator car 1, a car door 2, a construction platform corresponding to the construction elevator car 1, and a door frame 4 on the construction platform, a linkage mechanism is provided on the surface of the car door 2, and a safety door 5 is slidably connected in the door frame 4;

[0023] The linkage mechanism comprises a linkage block 3 installed at the bottom of the car door 2, the linkage block 3 is hinged with a hook 6 through an ear plate, and a storage box 7 installed on the construction elevator car 1 is arranged below the hook 6;

[0024] A lifting arc plate 8 is hinged on the door frame 4, and the lifting arc plate 8 can be hooked by the hook claw 6. When the car door 2 is raised, the safety door 5 is simultaneously driven to rise, and the hook claw 6 can be put into the storage box 7 to prevent the hook claw 6 from swinging out and causing danger, and also to prevent the hook claw 6 from being damaged during the rising process of the construction elevator car 1.

[0025] Furthermore, the safety door 5 includes a lower safety door 501, an upper safety door 502 is arranged above the lower safety door 501, a baffle 503 is arranged at the bottom of the upper safety door 502, and the baffle 503 is engaged with the lower safety door 501. When the lower safety door 501 rises, the baffle 503 can be engaged with the lower frame of the lower safety door 501, and the upper safety door 502 can be lifted synchronously, saving time and effort.

[0026] Furthermore, the lower safety door 501 is slidably connected on both sides with a first slide rail 9 arranged on the door frame 4, a second slide rail 10 is arranged on one side of the first slide rail 9, and a locking plate 11 is arranged at the bottom end of the second slide rail 10. The lower safety door 501 can rise and fall in the first slide rail 9, and the upper safety door 502 can rise and fall in the second slide rail 10. The locking plate 11 can lock the upper safety door 502 above the lower safety door 501, so that the two form a complete safety door 5.

[0027] Furthermore, the length of the second slide rail 10 is half of the length of the first slide rail 9 .

[0028] Furthermore, the bottom end of the lifting arc plate 8 is fixedly connected to the limit buckle 12, and the limit buckle 12 has a limit buckle groove 13 at the corresponding position of the bottom of the door frame 4. The limit buckle 12 can be stuck into the limit buckle 12 when the lifting arc plate 8 is in a relaxed state, thereby preventing the safety door 5 from being lifted and causing an accident.

[0029] Working principle: First, a construction elevator floor safety door is moved to the working position. When in use, in the first step, the construction elevator car 1 is lifted to the construction platform position, and the car door 2 is opened. In the second step, when the car door 2 is lifted, the linkage block 3 is driven to lift, thereby driving the hook 6 to lift from the storage box 7. In the third step, the lifted hook 6 lifts the upward arc plate 8, and the upward arc plate 8 drives the limit turn buckle 12 to be raised from the limit buckle groove 13, thereby unlocking the lower safety door 501. In the fourth step, when the bottom of the lower safety door 501 rises and contacts the baffle 503 at the bottom end of the upper safety door 502, it is stuck with the baffle 503, driving the upper safety door 502 to continue to rise, thus completing the use process of a construction elevator floor safety door.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A construction elevator floor safety door, comprising a construction elevator car (1), a car door (2), a construction platform corresponding to the construction elevator car (1), and a door frame (4) on the construction platform, characterized in that: A linkage mechanism is provided on the surface of the car door (2), and a safety door (5) is slidably connected inside the door frame (4); The linkage mechanism comprises a linkage block (3) mounted on the bottom of the car door (2); the linkage block (3) is hinged with a hook (6) via an ear plate; a storage box (7) mounted on the construction elevator car (1) is provided below the hook (6); An upwardly lifting arc-shaped plate (8) is hingedly connected to the door frame (4).

2. A construction elevator floor safety door according to claim 1, characterized in that: The safety door (5) comprises a lower safety door (501), an upper safety door (502) is arranged above the lower safety door (501), a baffle (503) is arranged at the bottom of the upper safety door (502), and the baffle (503) is clamped with the lower safety door (501).

3. A construction elevator floor safety door according to claim 2, characterized in that: The lower safety door (501) is slidably connected to first slide rails (9) arranged on the door frame (4) on both sides, a second slide rail (10) is arranged on one side of the first slide rail (9), and a locking plate (11) is arranged at the bottom end of the second slide rail (10).

4. A construction elevator floor safety door according to claim 3, characterized in that: The length of the second slide rail (10) is half that of the first slide rail (9).

5. A construction elevator floor safety door according to claim 1, characterized in that: The bottom end of the upwardly-lifting arc-shaped plate (8) is fixedly connected to a limit buckle (12), and the limit buckle (12) is provided with a limit buckle groove (13) at a corresponding position of the bottom of the door frame (4).

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