KR-102963556-B1 - Pulling-up apparatus

Abstract

The present invention relates to a differential lifting device for a structure such as a sluice gate in which a sliding door is installed in one or more openings spaced apart from an operating part, which can stably open and close the door while having a simple structure, and which enables sequential opening and closing with a simple single connecting mechanism when multiple sliding doors are installed. The device is characterized by comprising: a sliding door comprising a base frame having an opening formed therein and guide rails formed on both sides of the opening, and a door part coupled to the guide rails of the base frame and sliding to open and close the opening; and a shaft coupled to the door part of the sliding door through a connecting means and raised by a hoist.

Inventors

• 김명규

Assignees

• (주)가람테크

Dates

Publication Date

20260512

Application Date

20250730

Claims (3)

1. A base frame having an opening formed therein and guide rails formed on both sides of the opening; and A sliding door comprising: a door part coupled to a guide rail of the base frame and opening and closing the opening while sliding; and It is configured to include a shaft that is connected to the door portion of the above-mentioned sliding door through a connecting means and raised by a hoist, and The above shaft is made of a single body with no relative movement between them over its entire length, and The above sliding door and connecting means are provided in multiple numbers, and The above connecting means is, A base plate fixed to the upper surface of the door portion by means of the row of connecting bolts, wherein the row of connecting bolts is arranged at regular intervals in the front-rear direction on both the left and right sides; A pair of side plates arranged longitudinally on both the left and right sides of the upper surface of the base plate and vertically joined; A front end plate and a rear end plate, each vertically connected to the front and rear ends of the upper surface of the base plate and having a 'U'-shaped cut on the upper part; A cover plate coupled to the upper surface of the above pair of side plates, front end plate and rear end plate; and A shaft coupling member is configured to be disposed in an internal space formed by the base plate, side plate, front end plate, rear end plate, and cover plate, wherein movement in the front and rear directions is restricted by the front end plate and rear end plate, and a coupling hole is provided in the center to which the shaft is coupled. The side plate and cover plate of the above connecting means are characterized by being configured such that their length increases from the upper sliding door to the lower sliding door. Differential lifting device
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Description

Pulling-up apparatus The present invention relates to a differential lifting device, and more specifically, to a differential lifting device for appropriately opening and closing one or more sliding doors provided in a structure such as a sluice gate. Various doors are used to open and close openings formed in structures, and among them, when an operating part for operating the door is installed spaced apart from the door, a connecting mechanism such as a separate link mechanism is used. However, door opening devices equipped with such connecting mechanisms have been pointed out to have problems such as a complex structure, susceptibility to noise, and reduced operational reliability due to weak points in the connection. In particular, in such door opening devices, when multiple doors are spaced apart and must be opened sequentially, there is a problem that multiple operating parts must be provided or the connecting mechanism becomes more complex. FIG. 1 is a simplified plan view and a side view of the site installation of a differential lifting device according to the present invention. FIG. 2 is a perspective view showing a sliding door and a shaft, which are the main components of a differential lifting device according to the present invention, and a form of the connection relationship thereof. FIG. 3 is a perspective view illustrating a sliding door, which is a major component of the differential lifting device according to the present invention. FIG. 4 is an exploded perspective view illustrating a sliding door, which is a major component of the differential lifting device according to the present invention. FIG. 5 is a plan (section), front (section), and side (section) view showing a connecting means installed on a sliding door, which is a main component of the differential lifting device according to the present invention. FIG. 6 is a cross-sectional view illustrating the operational relationship between the lower gap adjustment piece and the upper gap adjustment piece, which are the main components of the differential lifting device according to the present invention. FIG. 7 is a perspective view illustrating an example of the operation relationship of a differential lifting device according to the present invention. A preferred embodiment of the differential lifting device according to the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a simplified plan view and a field installation side view of a differential lifting device according to the present invention; FIG. 2 is a perspective view showing a form of the connection relationship between a sliding door and a shaft, which are the main components of the differential lifting device according to the present invention; FIG. 3 is a perspective view showing a sliding door, which is the main component of the differential lifting device according to the present invention; FIG. 4 is an exploded perspective view showing a sliding door, which is the main component of the differential lifting device according to the present invention; FIG. 5 is a plan (cross-sectional) view, a front (cross-sectional) view, and a side (cross-sectional) view showing a connection means installed on a sliding door, which is the main component of the differential lifting device according to the present invention; FIG. 6 is a cross-sectional view explaining the operational relationship between a lower gap adjustment piece and an upper gap adjustment piece, which are the main components of the differential lifting device according to the present invention; FIG. 7 is a perspective view explaining an example of the operational relationship of the differential lifting device according to the present invention. As shown in FIGS. 1 to 4, the differential lifting device according to the present invention comprises a sliding door (5) comprising a base frame (3) having an opening (1) formed therein and guide rails (2) formed on both sides of the opening (1), and a door part (4) coupled to the guide rails (2) of the base frame (3) to open and close the opening (1) while sliding, and a shaft (7) coupled to the door part (4) of the sliding door (5) through a connecting means (6) and raised by a hoist (8). Here, the opening (1) of the base frame (3) is connected to the lower intake port (10), and the intake port (10) is connected to the drainage pipe (11), so water flowing in through the opening (1) is discharged through the intake port (10), drainage pipe (11), and drainage pipe (12), and the guide rail (2) has a cross-section in the shape of a 'C' so that the two ends of the door are fitted into it and move up and down without detachment, and the shaft (7) is formed in the shape of a circular bar. As a major feature of the present invention, the shaft (7) is formed as a single unit that does not move relative to one another over its entire length. This does not limit the use of multiple shafts (7), and even if multiple shafts (7) are conne