Landing door structure linked with single door of suspension cage

By adopting a landing door structure that links movable pulleys and steel wire ropes in the construction hoist, the problems of cumbersome installation and insufficient stability in the existing technology are solved, achieving simplified landing door linkage and safe and reliable opening and closing effects.

CN223950568UActive Publication Date: 2026-02-27ZHEJIANG YUNQI INTELLIGENT MACHINERY CO LTD
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Patent Information

Application Number
CN202520572256.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-02-27
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

The existing construction hoist door structure has problems such as complicated installation, poor stability, and the need for an additional power system, resulting in high operating costs and reduced safety performance.

Method used

The system employs a movable pulley structure linked to the single door of the hoisting cage. The linkage between the upper and lower semi-high floor doors is achieved through steel wire ropes and guide wheels. The movement of the hoisting cage door drives the opening and closing of the floor doors, simplifying the structural design and allowing adjustment of the distance between the hoisting cage door and the floor doors.

Benefits of technology

It achieves simple and reliable linkage of the floor doors, reduces installation complexity, improves stability and safety, and reduces the need for additional power systems.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223950568U_ABST
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Abstract

The utility model relates to a landing door structure linked with a single door of a suspension cage, and belongs to the technical field of building hoisting and transporting machinery. The lifting device comprises an upper half high-rise door, a lower half high-rise door, a first lifting point, a second lifting point, a steel wire rope, a movable pulley, a landing door frame, a guide wheel, a supporting plate and a movable supporting plate, the second lifting point is arranged above the landing door frame, the movable pulley is arranged below the upper half high-rise door, and the first lifting point is arranged above the lower half high-rise door; one end of a steel wire rope is fixed to the second lifting point, the steel wire rope winds around the movable pulley, the other end of the steel wire rope is fixed to the first lifting point, paired guide wheels are arranged at the four corners of the upper half high-rise door and the four corners of the lower half high-rise door, supporting plates are arranged on the two sides of the bottom of the lower half high-rise door, and the movable supporting plates are connected with the supporting plates in a fastened mode. The linkage device is simple and reasonable in structural design, stable, reliable, convenient to operate and good in linkage effect, and meets use requirements.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a floor door for construction hoist, especially to a floor door structure linked with the cage single door, which is applied to the intelligent control type construction hoist and belongs to the technical field of building hoisting and transporting machinery. BACKGROUND

[0002] The construction hoist is a hoisting and transporting machinery suitable for the construction of high-rise buildings, bridges, chimneys and other buildings, which is responsible for the transportation work between the floors of the building, so that a standard transportation channel and a floor door need to be set up on each floor.

[0003] With the development and popularization of the intelligent control type construction hoist, the automation demand of the floor door is also increasing, but due to the large number of floor doors, if a separate power system is used to automatically open the floor door, an additional anti-pinch system needs to be equipped, which greatly increases the use cost and reduces the safety performance guarantee. Therefore, it is necessary and significant to develop a floor door structure that does not require an additional power system and can be automatically opened and closed by simply using the opening and closing movement of the cage door.

[0004] A utility model patent with the title of "Floor door structure cooperating with cage" was disclosed in Chinese patent CN215710976U on February 1, 2022. The floor door is divided into two parts, which can be opened and closed in linkage with the cage door, and can effectively solve the problem of height limitation of the up-down opening floor door. The principle of this patent is that the upper and lower doors are in the same track, and the lower door is moved upward by the upper bracket of the cage door, and then the upper door is moved. However, this technology has the problem of poor stability of up-down opening and moving, and the supporting plate is fixed, so the distance between the supporting plate and the cage door bracket cannot be adjusted, which leads to the need to adjust the entire floor door and the relatively complicated installation.

[0005] A utility model patent with the title of "Floor door structure of construction hoist and cage door linkage" was disclosed in Chinese patent CN215710976U on August 9, 2024, which was applied by our company on December 19, 2023. The floor door structure is divided into three parts, two of which are linked by a steel wire rope, and the linkage rod of the floor door is lifted by the door supporting device of the cage to realize linkage opening with the cage door. However, this technology has the problem of too many structural units, and the production is relatively complicated.

[0006] Therefore, it is particularly necessary to provide a floor door structure that can be made more simply and reliably, and can be opened and closed up and down in linkage with the single door of the cage by using a movable pulley structure. UTILITY MODEL CONTENTS

[0007] The utility model discloses a purpose at overcoming the above -mentioned insufficient of prior art, and provide a structure design simple and reasonable, stable and reliable, convenient operation, and the good effect of linkage with the cage single door linkage's layer door structure.

[0008] The utility model discloses a technical scheme that the above problems are solved is: this with the cage single door linkage's layer door structure, including upper half high layer door, lower half high layer door, suspension point one, suspension point two, steel wire rope, movable pulley and the layer door frame that can integral erection on building, be provided with suspension point two on the layer door frame top, and the lower half high layer door is equipped with movable pulley, and the upper half high layer door is equipped with suspension point one, and one end of steel wire rope is fixed in suspension point two, and steel wire rope passes movable pulley, and the other end is fixed on suspension point one, and its characterized in that: still include guide wheel, supporting plate and movable supporting plate, the four corners of upper half high layer door, lower half high layer door are all equipped with a pair of guide wheel, and the bottom both sides of lower half high layer door are equipped with supporting plate, and movable supporting plate is fastened and links between supporting plate.

[0009] As preferred, the utility model discloses still include a plurality of supporting seat, and the layer door structure bottom installs three supporting seats, and the layer door structure top installs two supporting seats.

[0010] As preferred, the utility model discloses the supporting plate is equipped with a long hole, and is connected with a movable supporting plate, and the movable supporting plate is fastened and links between supporting plate, and can adjust along the long hole direction.

[0011] As preferred, the utility model discloses the layer door frame both sides are provided with square tube track, and the guide wheel can move up and down along square tube track.

[0012] As preferred, the utility model discloses the guide wheel adopts bolt fastening and is connected on upper half high layer door, lower half high layer door.

[0013] As preferred, the utility model discloses the supporting plate and lower half high layer door adopt bolt fastening and link.

[0014] Compared with prior art, the utility model has the following advantages and effects: the overall structure is simple and reasonable, safe and reliable, and the distance between the movable supporting plate on the layer door and the bracket on the cage door can be easily adjusted, thereby realizing the linkage effect between the cage door and the layer door. ACCURACY OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the utility model embodiment.

[0016] Figure 2 It is the side view structure schematic diagram of the utility model embodiment.

[0017] Figure 3 It is Figure 2 The local amplification schematic diagram of A place in the middle.

[0018] Figure 4 is a structure schematic view of the support base in the embodiment of the utility model.

[0019] In the drawing: layer door frame 1-1, steel wire rope 2-1, upper half high layer door 3-1, hanging point one 4-1, guide wheel 5-1, upper half high layer door's movable pulley 6-1, lower half high layer door 7-1, supporting plate 8-1, support base 9-1, long hole 910, hanging point two 10-1, movable supporting plate 11-1, cage door 12-1, bracket 13-1, distance a. DETAILED DESCRIPTION

[0020] The utility model will be further explained in detail in combination with the drawings and by embodiments, and the following embodiments are the explanation of the utility model, and the utility model is not limited to the following embodiments.

[0021] Embodiment.

[0022] Referring to Figures 1 to 4 , the layer door structure of the cage single door linkage in the embodiment includes layer door frame 1-1, steel wire rope 2-1, upper half high layer door 3-1, hanging point one 4-1, guide wheel 5-1, movable pulley 6-1, lower half high layer door 7-1, supporting plate 8-1, support base 9-1, hanging point two 10-1 and movable supporting plate 11-1.

[0023] The square tube track of layer door frame 1-1 in the embodiment is on both sides, acts as the up-down movement guide rail of upper half high layer door 3-1 and lower half high layer door 7-1, and layer door frame 1-1 can be integrally installed on the building (structure) and is installed efficiently.

[0024] The square tube track of layer door frame 1-1 in the embodiment can adopt welding type or bolt fastening connection type.

[0025] In the embodiment, hanging point two 10-1 is arranged above layer door frame 1-1 and is used to fix one end of steel wire rope 2-1.Layer door frame 1-1 is fastened by bolts on five support bases 9-1, wherein three support bases 9-1 are connected to the bottom of the whole layer door, two support bases 9-1 are connected to the top of the whole layer door, the support base 9-1 is fastened by bolts on the building beam, and the long hole 910 is also arranged on the support base 9-1, which can coarsely adjust the distance a between the whole layer door and the cage door.

[0026] The layer door in the embodiment is divided into two half high layer doors, namely upper half high layer door 3-1 and lower half high layer door 7-1.The four corners of the two half high layer doors are provided with a pair of guide wheels 5-1, which can move up and down along the square tube track on both sides; the guide wheels 5-1 are fastened by bolts on the upper half high layer door 3-1 and the lower half high layer door 7-1.

[0027] The movable pulley 6-1 is arranged below the upper half high layer door 3-1 in the embodiment.

[0028] The upper middle part of the lower half height door 7-1 in the embodiment is provided with a lifting point 4-1 for fixing the other end of the steel wire rope 2-1. The bottom of the lower half height door 7-1 (towards the direction of the elevator cage) is provided with two supporting plates 8-1 which are connected to the lower half height door 7-1 by bolts and can be conveniently replaced. The supporting plate 8-1 is provided with a long hole and is connected to a movable supporting plate 11-1 which is connected to the supporting plate 8-1 by bolts and can be adjusted along the direction of the long hole to finely adjust the distance between the supporting plate 8-1 on the door and the bracket 13-1 of the cage door 12-1.

[0029] The two half height doors in the embodiment are installed on the guide rails in sequence and then the steel wire rope 2-1 is installed, one end of which is fixed to the lifting point two 10-1 of the door frame and the other end is fixed to the lifting point one 4-1 in the upper middle part of the lower half height door 7-1.

[0030] The installation direction of the two half height doors in the embodiment is that the lower half height door 7-1 is towards the direction of the elevator cage and the upper half height door 3-1 is towards the direction of the passageway of the building. The bottom of the lower half height door 7-1 is provided with two supporting plates 8-1.

[0031] The upper half height door 3-1 and the lower half height door 7-1 in the embodiment move up and down along the same track.

[0032] When the cage single door structure is opened, the bracket 13-1 on the door is opened, the supporting plate 8-1 on the lower half height door 7-1 of the door is lifted and drives the lower half height door 7-1 to move upwards. Since the lifting point one 4-1 on the upper part of the lower half height door 7-1 is connected to the lifting point two 10-1 on the door frame 1-1 through the steel wire rope 2-1 which passes through the movable pulley 6-1 on the lower part of the upper half height door 3-1, the upper half height door 3-1 is also moved upwards by using the movement principle of the movable pulley 6-1. Because of the amplification characteristics of the movable pulley 6-1, the movement distance of the lower half height door 7-1 is twice the movement distance of the upper half height door 3-1. Therefore, the two half height doors reach the same height, i.e. the target height of the opening of the elevator cage single door, and the opening of the door is completed. When the elevator cage single door is closed, the bracket 13-1 on the cage door 12-1 is separated from the supporting plate 8-1 of the lower half height door 7-1, and the two half height doors move downwards due to their own gravity and fall to their original positions, and the closing of the door is completed.

[0033] Through the above description, those skilled in the art can implement it.

[0034] Furthermore, it needs to explain, the specific embodiment described in this specification, the shape of zero, component, the name taken etc. can be different, the above-mentioned in this specification is merely an example of the structure of the utility model is made. The equivalent change or simple change made according to the structure, features and principles described in the utility model patent concept, all are included in the protection scope of the utility model patent. The person skilled in the art to which the utility model belongs can make various modifications or supplements or adopt similar ways to replace the specific embodiments described, as long as it does not deviate from the structure of the utility model or beyond the range defined in the claims, it should belong to the protection scope of the utility model.

Claims

1. A layer door structure linked with a cage single door, comprising an upper half high layer door (3-1), a lower half high layer door (7-1), a lifting point one (4-1), a lifting point two (10-1), a steel wire rope (2-1), a movable pulley (6-1) and a layer door frame (1-1) which can be integrally installed on a building, wherein the lifting point two (10-1) is arranged above the layer door frame (1-1), the movable pulley (6-1) is arranged below the upper half high layer door (3-1), and the lifting point one (4-1) is arranged above the lower half high layer door (7-1); one end of the steel wire rope (2-1) is fixed on the lifting point two (10-1), the steel wire rope (2-1) passes through the movable pulley (6-1), and the other end of the steel wire rope (2-1) is fixed on the lifting point one (4-1), characterized in that: It also includes guide wheels (5-1), a supporting plate (8-1) and a movable supporting plate (11-1), the upper half high door (3-1) and the lower half high door (7-1) are each provided with a pair of guide wheels (5-1) at the four corners, the bottom of the lower half high door (7-1) is provided with a supporting plate (8-1) on both sides, and the movable supporting plate (11-1) is tightly connected with the supporting plate (8-1). ​ 2. The landing door structure linked with a single door of a cage according to claim 1, characterized in that: It also includes a plurality of supporting seats (9-1), three supporting seats (9-1) are installed at the bottom of the door structure, and two supporting seats (9-1) are installed at the top of the door structure.

3. The landing door structure linked with a single door of a cage according to claim 1, characterized in that: The supporting plate (8-1) is provided with a long hole and is connected with a movable supporting plate (11-1), the movable supporting plate (11-1) is tightly connected with the supporting plate (8-1) by bolts and can be adjusted along the long hole.

4. The landing door structure linked with a single door of a cage according to claim 1, wherein: The layer door frame (1-1) is provided with a square tube track on both sides, and the guide wheels (5-1) can move up and down along the square tube track.

5. The landing door structure linked with a single door of a cage according to claim 1, wherein: The guide wheels (5-1) are tightly connected with the upper half high door (3-1) and the lower half high door (7-1) by bolts.

6. The landing door structure linked with a single door of a cage according to claim 1, wherein: The supporting plate (8-1) is tightly connected with the lower half high door (7-1) by bolts.

Citation Information

Patent Citations

  • Floor door structure matched with suspension cage

    CN215710976U