Landing door structure of construction hoist

Abstract

The utility model discloses a landing door structure of a construction hoist, which belongs to the technical field of construction hoists, and adopts the technical scheme that the landing door structure comprises a door frame main body and a landing door main body, the door frame main body comprises at least two side rods, and the landing door main body is arranged on the side rods in a sliding manner. The sliding cavity is formed in the length direction of the side rod, the roller sets are rotationally arranged on the two sides of the landing door body, located in the sliding cavity and in rolling fit with the cavity wall of the sliding cavity, the roller sets of the landing door structure are located in the sliding cavity, the overall structure is more compact, the roller sets and the motion trail of the roller sets do not need to additionally occupy space, and the service life of the landing door structure is prolonged. And the occupied space can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction hoists, and particularly relates to a layer door structure of a construction hoist. Background Technique

[0002] A construction hoist, also known as a construction elevator, a building construction elevator, an outdoor elevator or a construction site lifting cage, is a manned and cargo-carrying construction machine widely used in building construction. To play a safety protection role, a hoist door is usually set at the exit of the construction hoist, and a layer door is set at the floor entrance.

[0003] Chinese Patent No. CN217627063U discloses an up-and-down lifting linkage type floor door, which includes a door frame, an upper door body and a lower door body. The door frame includes two side rods symmetrically arranged left and right; the two sides of the upper door body are respectively provided with a first upper roller group and a first lower roller group; the two sides of the lower door body are respectively provided with a second upper roller group and a second lower roller group; and a linkage block is installed on the lower door body; wherein, the first upper roller group, the first lower roller group, the second upper roller group and the second lower roller group each include two rollers, and the two rollers are respectively arranged on the front and back sides of the side rod, and the first lower roller group is located between the second upper roller group and the second lower roller group.

[0004] The above technical solution has the following defects: The floor door improves the stability when the upper door body and the lower door body move by respectively arranging the first upper roller group and the first lower roller group on both sides of the upper door body, and the second upper roller group and the second lower roller group on both sides of the lower door body. Each of the first upper roller group, the first lower roller group, the second upper roller group and the second lower roller group includes two rollers, and the two rollers are respectively arranged on the front and back sides of the side rod. This arrangement of rollers requires a large space both in the length direction of the side rod and in the front and back directions of the side rod, and the overall structure is not compact enough. Content of the Utility Model

[0005] The purpose of the utility model is to propose a layer door structure of a construction hoist aiming at the above problems existing in the prior art. The technical problem to be solved by the utility model is: how to make the space more compact and reduce the space occupation.

[0006] The above technical purpose of the utility model can be achieved by the following technical solutions: A layer door structure of a construction hoist includes a door frame main body and a layer door main body. The door frame main body includes at least two side rods. The layer door main body is slidably arranged on the side rods. A sliding cavity is arranged on the side rods. The sliding cavity is arranged along the length direction of the side rods. Roller groups are rotatably arranged on both sides of the layer door main body. The roller groups are located in the sliding cavity, and the roller groups are in rolling cooperation with the cavity walls of the sliding cavity.

[0007] In the above-mentioned construction elevator landing door structure, mounting plates are connected to both sides of the landing door main body. The roller sets are rotatably arranged on the mounting plates. A strip-shaped hole communicating with the sliding cavity is formed in the side rod. The mounting plate passes through the strip-shaped hole, and the strip-shaped hole limits the mounting plate.

[0008] In the above-mentioned construction elevator landing door structure, the roller set includes four rollers, and the four rollers are symmetrically distributed on both sides of the mounting plate.

[0009] In the above-mentioned construction elevator landing door structure, a mounting hole is formed in the side rod. The mounting hole communicates with the sliding cavity and is used for the roller set to pass through.

[0010] In the above-mentioned construction elevator landing door structure, a linkage plate is provided on the landing door main body.

[0011] In the above-mentioned construction elevator landing door structure, a movable plate is rotatably arranged on the linkage plate. A mechanical hook is provided on the movable plate. When the movable plate rotates, the upper surface of the movable plate can abut against the lower surface of the linkage plate.

[0012] In the above-mentioned construction elevator landing door structure, a pedal is provided at the bottom of the door frame main body.

[0013] In the above-mentioned construction elevator landing door structure, the landing door main body includes an upper landing door and a lower landing door, and the upper landing door and the lower landing door are distributed along the length direction of the side rod.

[0014] In the above-mentioned construction elevator landing door structure, there are four side rods which are symmetrically arranged. The upper landing door is slidably arranged on two of the side rods, and the lower landing door is slidably arranged on the other two side rods.

[0015] In the above-mentioned construction elevator landing door structure, a first safety plate is provided at the bottom of the upper landing door, and a second safety plate and a third safety plate are respectively provided at both ends of the lower landing door.

[0016] In summary, the beneficial effects of the present utility model compared with the prior art are as follows:

[0017] By forming a sliding cavity in the side rod, the roller sets rotatably arranged on both sides of the landing door main body are located in the sliding cavity, and the roller sets are in rolling cooperation with the groove walls of the sliding cavity, so that the overall structure is more compact and the space occupation is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of Embodiment 1;

[0019] Figure 2 ForFigure 1 Enlarged view of part A;

[0020] Figure 3 Another perspective structural schematic diagram of Embodiment 1;

[0021] Figure 4 Structural schematic diagram of the doorframe main body of Embodiment 1;

[0022] Figure 5 For Figure 4 Enlarged view of part B;

[0023] Figure 6 Structural schematic diagram of the floor door main body of Embodiment 1;

[0024] Figure 7 For Figure 6 Enlarged view of part C;

[0025] Figure 8 Structural schematic diagram of Embodiment 2.

[0026] Reference numerals: 1, doorframe main body; 2, floor door main body; 3, side rod; 4, sliding cavity; 5, roller group; 6, mounting plate; 7, strip hole; 8, mounting hole; 9, linkage plate; 10, movable plate; 11, mechanical hook; 12, pedal; 13, upper floor door; 14, lower floor door; 15, first safety plate; 16, second safety plate; 17, third safety plate. Detailed implementation manners

[0027] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0028] Embodiment 1:

[0029] A floor door structure of a construction hoist, as Figures 1 to 7 shown, includes a doorframe main body 1 and a floor door main body 2. The doorframe main body 1 includes at least two side rods 3. In this embodiment, there are four side rods 3 and they are symmetrically arranged.

[0030] The floor door main body 2 includes an upper floor door 13 and a lower floor door 14. The upper floor door 13 and the lower floor door 14 are distributed along the length direction of the side rods 3. In the normal state, the upper floor door 13 is located above the lower floor door 14.

[0031] The floor door main body 2 is slidably arranged on the side rods 3. Specifically, the upper floor door 13 is slidably arranged on two side rods 3, and the lower floor door 14 is slidably arranged on the other two side rods 3.

[0032] A sliding cavity 4 is provided on the side rod 3. Specifically, the side rod 3 is hollow to form the sliding cavity 4, and the sliding cavity 4 is arranged along the length direction of the side rod 3. Roller groups 5 are rotatably arranged on both sides of the landing door main body 2. The roller groups 5 are located in the sliding cavity 4, and the roller groups 5 are in rolling cooperation with the groove walls of the sliding cavity 4.

[0033] It should be noted that since the roller groups 5 are located in the sliding cavity 4, the overall structure is made more compact, and neither the roller groups 5 nor their movement trajectories need to occupy additional space, thus reducing space occupation.

[0034] Mounting plates 6 are connected to both sides of the landing door main body 2. The roller groups 5 are rotatably arranged on the mounting plates 6. In this embodiment, the landing door main body 2 and the mounting plates 6 are connected by bolts and nuts, which facilitates the disassembly and assembly of the mounting plates 6, and further facilitates the replacement and maintenance of the roller groups 5. As another solution, the landing door main body 2 and the mounting plates 6 can also be connected by welding.

[0035] A strip-shaped hole 7 communicating with the sliding cavity 4 is formed on the side rod 3. The strip-shaped hole 7 is formed along the length direction of the side rod 3. The mounting plate 6 passes through the strip-shaped hole 7, and the strip-shaped hole 7 limits the mounting plate 6, that is, the side wall of the mounting plate 6 abuts against the side wall of the strip-shaped hole 7, thereby realizing the limitation of the mounting plate 6, and further realizing the limitation of the upper landing door 13 and the lower landing door 14.

[0036] The roller group 5 includes four rollers, and the four rollers are symmetrically distributed on both sides of the mounting plate 6. It should be noted that the number of rollers can also be appropriately increased or decreased, and no specific limitation is made in this regard.

[0037] A mounting hole 8 communicating with the sliding cavity 4 is formed on the side rod 3. The mounting hole 8 is used for the roller group 5 to pass through. It should be noted that during installation, first, the roller group 5 is installed on the mounting plate 6, then the roller group 5 and the mounting plate 6 are placed into the sliding cavity 4 from the mounting hole 8, and the mounting plate 6 passes through the strip-shaped hole 7, and finally the mounting plate 6 is connected to the landing door main body 2.

[0038] Linking plates 9 are provided on the landing door main body 2. In this embodiment, there are two linking plates 9, and both of the two linking plates 9 are arranged on the lower landing door 14. The linking plates 9 are used to cooperate with linking blocks (not shown in the figure) on the cage door. When the linking blocks rise with the cage door, the linking blocks abut against the linking plates 9 to drive the lower landing door 14 to rise.

[0039] A movable plate 10 is rotatably arranged on one of the linking plates 9, and a mechanical hook 11 is arranged on the movable plate 10. Under the action of gravity, the side wall of the mechanical hook 11 abuts against the outer surface of the doorframe main body 1. At this time, the mechanical hook 11 can hook the doorframe main body 1, thereby realizing the limitation of the lower landing door 14, and the lower landing door 14 cannot rise and open.

[0040] When the movable plate 10 rotates, the upper surface of the movable plate 10 can abut against the lower surface of the linkage plate 9. Specifically, when the linkage block abuts against the movable plate 10 and causes it to rotate upward until the upper surface of the movable plate 10 abuts against the lower surface of the linkage plate 9, and the movable plate 10 simultaneously drives the mechanical hook 11 to rotate. At this time, the mechanical hook 11 rotates away from the door frame main body 1, and when the lower door 14 rises and opens, the mechanical hook 11 cannot hook the door frame main body 1.

[0041] A pedal 12 is provided at the bottom of the door frame main body 1 to ensure that the personnel and transportation tools for transporting materials can pass through smoothly.

[0042] A first safety plate 15 is provided at the bottom of the upper door 13, and second and third safety plates 16 and 17 are respectively provided at both ends of the lower door 14. In this embodiment, the number of the first safety plate 15, the second safety plate 16, and the third safety plate 17 is two and they are distributed at intervals. The second safety plate 16 is directly above the first safety plate 15, and the third safety plate 17 is directly above the pedal 12.

[0043] It should be noted that when the lower door 14 rises and opens, the upper surface of the third safety plate 17 can abut against the lower surface of the first safety plate 15, so as to drive the upper door 13 to move upward with the lower door 14.

[0044] Embodiment 2:

[0045] The difference between Embodiment 2 and Embodiment 1 is that, as Figure 8 shown, in this embodiment, there is one linkage plate 9 and it is located in the middle of the lower door 14. A movable plate 10 is rotatably provided on the linkage plate 9, and a mechanical hook 11 is provided on the movable plate 10. Under the action of gravity, at this time, the mechanical hook 11 can hook the bottom of the pedal 12, so as to limit the lower door 14, and the lower door 14 cannot rise and open.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the present invention; those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A construction elevator floor door structure, comprising a door frame body (1) and a floor door body (2), wherein the door frame body (1) comprises at least two side rods (3), and the floor door body (2) is slidably arranged on the side rods (3), characterized in that: The side rod (3) is provided with a sliding cavity (4), and the sliding cavity (4) is arranged along the length direction of the side rod (3). Both sides of the floor door body (2) are rotatably provided with roller groups (5), and the roller groups (5) are located in the sliding cavity (4), and the roller groups (5) are rollingly matched with the cavity wall of the sliding cavity (4).

2. A construction elevator door structure according to claim 1, characterized in that: Both sides of the floor door body (2) are connected with mounting plates (6), the roller group (5) is rotatably arranged on the mounting plates (6), the side rod (3) is provided with a strip hole (7) connected with the sliding cavity (4), the mounting plate (6) passes through the strip hole (7), and the strip hole (7) limits the mounting plate (6).

3. A construction elevator door structure according to claim 2, characterized in that: The roller group (5) comprises four rollers, and the four rollers are symmetrically distributed on both sides of the mounting plate (6).

4. The construction elevator door structure according to claim 1, characterized in that: The side rod (3) is provided with a mounting hole (8), the mounting hole (8) is communicated with the sliding cavity (4), and the mounting hole (8) is used for the roller group (5) to pass through.

5. The construction elevator door structure according to claim 1, characterized in that: A linkage plate (9) is provided on the landing door body (2).

6. A construction elevator door structure according to claim 5, characterized in that: The linkage plate (9) is rotatably provided with a movable plate (10), and the movable plate (10) is provided with a mechanical hook (11). When the movable plate (10) rotates, the upper surface of the movable plate (10) can abut against the lower surface of the linkage plate (9).

7. The construction elevator door structure according to claim 1, characterized in that: A pedal (12) is provided at the bottom of the door frame body (1).

8. A construction elevator door structure according to claim 7, characterized in that: The layer door body (2) comprises an upper layer door (13) and a lower layer door (14), and the upper layer door (13) and the lower layer door (14) are distributed along the length direction of the side rod (3).

9. A construction elevator door structure according to claim 8, characterized in that: There are four side rods (3) which are symmetrically arranged; the upper door (13) is slidably arranged on two of the side rods (3), and the lower door (14) is slidably arranged on the other two of the side rods (3).

10. The construction elevator door structure according to claim 8, characterized in that: A safety plate 1 (15) is arranged at the bottom of the upper door (13), and a safety plate 2 (16) and a safety plate 3 (17) are arranged at both ends of the lower door (14).

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