KR102270800B1 - Sagging Prevention System for Elevators - Google Patents

Abstract

The present invention provides a sagging prevention system for elevators that keeps an elevator cage stationary in its proper position to easily support the large load of passengers or cargo boarded, loaded, or unloaded at the platform of each floor, prevents malfunctions of an elevator and the risk of safety accidents to improve safety, and also reduces the number of parts of a sagging preventing means, for very easy installation to greatly improve the efficiency and productivity of work. The sagging prevention system includes a rotating part, a shaft, a fixed bearing, a pair of rotating supports, and a plurality of support rollers.

Description

Sagging Prevention System for Elevators

The present invention relates to a sagging prevention system for an elevator, and more particularly, when a passenger or cargo boards inside a cage, it prevents the cage from sagging downward by the load, thereby preventing malfunction of the elevator and improving safety. It relates to a deflection prevention system for an elevator that allows

As is well known, the elevator has been used as a means of transport for moving passengers or cargo between floors to the platform provided on each floor as the cage moves up and down along the hoistway formed inside the building. It is broadly classified into elevators for use and freight elevators on which cargo or automobiles are mounted.

Various safety devices are installed and installed in these elevators to prevent safety accidents in preparation for malfunctions or power outages.

In particular, since cargo elevators are equipped with heavy cargo or forklifts or trucks carrying cargo inside the cage, the need for safety measures is further demanded therefor.

In order to meet these demands, a safety device for freight elevators in Utility Model Registration No. 20-0487593 has been proposed, but the safety device is very complicated and difficult to install, which greatly reduces the efficiency and productivity of work and increases the production cost. Due to the high cost of installation, etc., the economic feasibility is low, and the demand is not increasing.

"자 형태의 걸림대와; 상기 체대의 타측면에 일측이 고정되고, 좌,우로 길이가 신축되는 로드의 단부가 상기 걸림대의 내측에 일체로 결합되는 구동부와; 상기 걸림대의 타측면에 일단이 고정되고, 타단은 지지판에 결합되어 자체 탄성에 의해 상기 걸림대를 지지하는 스프링;으로 이루어져 있다.In order to solve this problem, in the patent registration No. 10-2038516 proposed by the applicant of the present invention, "the cargo elevator cage sag prevention device is located at a predetermined position of the guide rail corresponding to each floor of the platform, in front of and behind one side, respectively. A plurality of fixed plates having gears are installed, respectively, and anti-sag means are installed on one or both sides of the upper part of the body, and the anti-sag means include a rail plate integrally installed on the front and rear surfaces of the body; The flow groove is formed so that it can be inserted and coupled, the width of the flow groove is formed to be 25 ~ 35 mm larger than the width of the rail plate, and a flat cross-section in which a plurality of gears are formed in front and rear of one end is "

A “shape-shaped locking bar; and a driving unit having one end fixed to the other side of the body, and the ends of the rods extending and contracting in the left and right directions are integrally coupled to the inside of the hook; one end is fixed to the other side of the hanger and a spring coupled to the other end of the support plate to support the stopper by its own elasticity.

However, the anti-sag means of the above-described configuration has a problem in that the number of component parts is large, and the installation and assembly are complicated, resulting in an increase in the manufacturing cost, and thus the competitiveness is lowered.

Registered Utility Model Publication No. 20-0487593 Registered Patent Publication No. 10-2038516

Therefore, in order to solve the above problems, the present invention enables the elevator cage to maintain a stopped state in a fixed position so that it can easily support the large load of passengers or cargo being boarded and loaded or unloaded at the platform of each floor. Deflection prevention system for elevators that not only improves safety by preventing malfunctions and safety accidents of elevators, but also reduces the number of parts to prevent sagging, making installation very easy, greatly improving work efficiency and productivity It is intended to provide

In order to achieve the above object, the present invention provides a plurality of guide rails installed in a vertical direction on a hoistway formed vertically inside and outside a building, and guide shoes movably coupled to the guide rails on both sides of the cage at the upper and lower sides of the cage. In the elevator that is installed respectively, and moves the cage between floors by driving a driving unit according to an electrical signal of the control unit in a state in which a passenger is boarded or cargo is loaded in the inner space of the cage, it is electrically connected to the control unit, and the a rotating part fixed and installed on the upper part of the cage; a shaft provided with a predetermined length integrally formed with a gear in an intermediate portion so that it can be rotated in a forward and reverse direction in conjunction with the rotating part; a plurality of fixed bearings installed at regular intervals on the upper part of the cage and rotatably supported by inserting the shaft; a pair of rotating support members which are integrally fixed to both ends of the shaft and rotate; A plurality of support rollers respectively coupled to the pair of rotary supports to face the weight load of the cage and installed to face each other at predetermined positions on both sides of the inner wall of the hoistway corresponding to each floor of the platform so as to support the weight load of the cage. .

In addition, the present invention is characterized in that the rotation support is a "c" or "b"-shaped metal angle provided with a predetermined length.

In addition, the support roller is characterized in that a rubber ring is coupled to the outer periphery to prevent shock absorption and noise when combined with the rotating support.

As described above, by providing the anti-sag system for an elevator according to the present invention, the elevator cage can be maintained in a stationary state to facilitate the large load of passengers or cargo to be boarded and loaded or unloaded at the platform of each floor. By making it possible to support the elevator, it not only improves safety by preventing malfunctions and safety accidents of the elevator, but also reduces the number of parts to prevent sagging and makes installation very simple, which can greatly improve the efficiency and productivity of work. It works.

1 is a front view showing the installation state of the anti-sag system for an elevator according to the present invention.
Figure 2 is a plan view showing the installation state of the anti-sag system for an elevator according to the present invention.
3 is a plan view and a side view illustrating the operating state of the anti-sag system for an elevator according to the present invention.
4 a, b is an enlarged side view and a front cross-sectional view showing another embodiment of the anti-sagging system for an elevator according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shape of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. Detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

As shown, the present invention provides a plurality of guide rails 12 installed in a vertical direction in a hoistway 10 formed vertically inside and outside a building, and a guide shoe 22 movably coupled to the guide rail 12 . ) are installed on both sides of the cage 20, respectively, on the upper and lower sides, and the driving unit (not shown) according to an electrical signal from the control unit (not shown) in the state where a passenger boards or cargo is loaded in the inner space of the cage 20 . As applied to an elevator that drives the cage 20 to move the cage 20 between floors, the rotating part 110 and the shaft 120 and the fixed bearing 130 installed in the cage 10, a pair of rotational supports It is largely composed of 140 and a support roller 150 installed in the hoistway 10 .

The rotating unit 110 serves to rotate the shaft 120 and the rotating support 140 , and is electrically connected to the control unit to receive power and drive the motor 112 and the motor 112 . A speed reducer 114 for reducing the driving speed of the cage 20 is fixed and installed on the upper part of the cage 20 .

The shaft 120 rotates forward and reverse by the power of the rotating part 110 to rotate the rotation support 140 , and includes a metal rod having a predetermined length and diameter, but a gear in the middle part. What is necessary is to form the 122 integrally so that it can be rotated by the driving of the motor 112 while meshing with the reduction gear 114 of the rotating part 110 .

The fixed bearing 130 performs a function of fixing and supporting the shaft 120 so that rotation of the shaft 120 is possible. It is fastened to be integrated using a separate fastening means.

The pair of rotary support 140 is rotated vertically or horizontally by the rotation of the shaft 120 and passes through the support roller 150 or is supported by the support roller 150 so that a large load is applied to the cage 20 . As a function of preventing the cage 20 from sagging even when applied, it may be fixed to both ends of the shaft 120 by welding or integrally installed by a separate fastening means.

At this time, the pair of rotation support 140 is provided with a "c" or "b"-shaped metal angle provided with a predetermined length, and may be installed at both ends of the shaft 120 so as to be symmetrical to each other.

The support rollers 150 are respectively coupled to the pair of rotating supporters 140 to support the weight load of the cage 20, respectively, facing each other at predetermined positions on both sides of the inner wall of the hoistway 10 corresponding to each floor of the platform. You just need to install multiple to see.

At this time, it is preferable that the support roller 150 is coupled to the outer periphery of the rubber ring 152 to prevent shock absorption and noise when coupled to the rotation support 140 .

In addition, when the rotary support 140 is provided in a "C" shape, the diameter of the support roller 150 is 5 to 10 mm smaller than the groove width of the rotary support 140 to form the cage 20 . What is necessary is to allow the rotating support body 140 to easily pass through a plurality of support rollers 150 during elevating and lowering.

Here, it is preferable that the anti-sag system according to the present invention is installed at the front and rear of the upper part of the cage so that the center of gravity of the cage is not biased to one side.

The action of the anti-sag system for an elevator according to the present invention having such a configuration is first, when the cage 20 is lifted or lowered to a platform for loading cargo and stopped, the support rollers installed on the inner walls of both sides of the hoistway 10 150 is positioned between the grooves of the rotary support 140 or on the rotary support 140 .

Subsequently, the cage door and the landing door are opened under the control of the control unit, and the motor 112 and the reducer 114 of the rotating unit 110 are driven at the same time, and as the shaft 120 rotates in conjunction with this, the The rotation support 140 installed at both ends of the shaft 120 rotates around the support roller 150 to maintain a horizontal state.

Thereafter, when a passenger boards or cargo is loaded into the cage 20, the cage 20 may sag due to the load. At this time, the support roller 150 is rotated in a horizontal state. As the rotating support 140 is firmly supported by being caught on the support roller 150, it is possible to prevent sagging of the cage 20 even if a cargo with a large load is mounted on the cage 20, so that stable elevator operation is possible. will become

On the other hand, when boarding or mounting in the cage 10 is completed, the cage door and the platform door are closed under the control of the control unit for elevator operation, and at the same time, the shaft 120 is moved in the forward or reverse direction by driving the rotating unit 110 . When the rotating support 140 is rotated so that it is in a vertical state around the support roller 150, and then the cage 20 is raised or lowered by the driving of the driving unit, the rotating support 140 is removed from the support roller 150. It is possible to smoothly move between floors of the cage 20 while leaving.

Thereafter, when the cage 20 reaches the target layer, the shaft 120 is rotated by the driving of the rotating part 110 to repeatedly perform an operation to bring the rotary support 140 to a horizontal state, so that the heavy Even if the cargo is mounted inside the cage 20 , it is possible to prevent sagging of the cage 20 .

The anti-sagging system for an elevator according to the present invention may be operated continuously and repeatedly during elevator operation, but when necessary, a separate operation button (not shown) is installed inside the cage 20 to increase energy efficiency. It is preferable to apply power to the rotating unit 110 from the control unit by pressing the operation button only to enable operation.

The sag prevention system for an elevator of the present invention as described above allows the cage to maintain a stopped state at the correct position, so that it can easily support the large load of cargo loaded or unloaded at the platform of each floor to block the sagging phenomenon of the cage. , prevents malfunctions and safety accidents of the elevator, enables stable operation of the elevator, and reduces the number of components to prevent sagging, making installation very easy, greatly improving work efficiency and productivity. It is an invention with very high industrial applicability.

10: hoistway 12: guide rail
20: cage 22: guide shoe
110: rotating part 112: motor
114: reducer 120: shaft
122: gear 130: fixed bearing
140: rotary support 150: support roller

Claims (3)

A plurality of guide rails installed in the vertical direction on the hoistway formed vertically inside and outside the building, and guide shoes movably coupled to the guide rails are respectively installed at the upper and lower sides of the cage, and the passengers in the inner space of the cage In the elevator for moving the cage between floors by driving the driving unit according to the electrical signal of the control unit in the state that the boarding or cargo is loaded,
a rotating part electrically connected to the control unit and fixed and installed on the upper part of the cage;
a shaft provided with a predetermined length integrally formed with a gear in an intermediate portion so that it can be rotated forward and reverse in conjunction with the rotating part;
a plurality of fixed bearings installed at regular intervals on the upper part of the cage and rotatably supported by inserting the shaft;
a pair of rotating support members which are integrally fixed to both ends of the shaft and rotate;
A plurality of support rollers respectively coupled to the pair of rotary supports to face the weight load of the cage and installed to face each other at predetermined positions on both sides of the inner wall of the hoistway corresponding to each floor of the platform so as to support the weight load of the cage Deflection prevention system for elevators. The method of claim 1,
The rotatable support is an elevator deflection prevention system, characterized in that it is a metal angle of a "c" or "b" shape provided with a predetermined length. The method of claim 1,
The support roller is an elevator sagging prevention system, characterized in that the rubber ring is coupled to the outer periphery to absorb shock and prevent noise when combined with the rotating support.

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