KR100420027B1 - Link structure for elevator governor - Google Patents

Abstract

The present invention solves the difficulty in installing a governor in a hoistway with a low pit depth by eliminating interference that may occur between the governor and the elevator car when the governor is installed at the lower pit of the hoistway in which the elevator car hovers. It relates to a link structure for an elevator governor.

In addition, the link structure for the elevator governor has a constant elevator car is installed, when the elevator driving through the hoistway, the governor for detecting the abnormal descending speed of the elevator car to operate the emergency stop device mounted on the lower frame of the elevator car feet of the hoistway In the lower installation type governor structure installed in the lower portion, a separate link device is fixed to the side of the elevator car in order to space the predetermined distance between the elevator car and the governor, the link device is formed by extending the governor rope on the governor side A first link member coupled to a governor rod, the first link member having a substantially 'b' shape so as to be able to rotate left and right about a first fixed shaft, and a second link having one side coupled to a bent portion of the first link member with a free end; Free end and the other side of the member and the second link member The is achieved by consisting it includes the third link member the other hand takes place in the state coupled to the emergency stop lever provided in the safety gear in a substantially reverse "b" shape to allow the right and left pivoting around a second fixed axis that is coupled with.

Description

Link structure for elevator governor {LINK STRUCTURE FOR ELEVATOR GOVERNOR}

The present invention relates to a link structure for an elevator governor, and more particularly, when the governor is installed in a lower part of a hoistway in which an elevator is installed and operated, an elevator governor for eliminating interference that may occur between the governor and the elevator car. For link structure.

In general, when building a high-rise apartment or office high-rise buildings, elevator cars are inevitably installed in the building, and the elevator is constructed as a passageway through which the elevator can operate. Such elevator elevators are mostly formed in a rectangular parallelepiped shape. In each floor of the building, an opening communicating with the hoistway is formed.

In addition, the hoistway is connected to the elevator car and the counterweight and a rope wound on the hoist which moves the elevator car, and a guide rail for guiding the up and down movement of the elevator car or the counterweight is installed, while connecting the elevator car and the control panel. Control cables, switches for detecting the position of the elevator car, and the like are provided, and door devices are provided in the openings of each floor of the hoistway.

In addition, the governor normally installed in the machine room stops the elevator car by catching a governor rope connecting the governor and the emergency stop device so as to detect an abnormal descending speed of the platform and operate the emergency stop device mounted on the lower part of the frame of the elevator car. Is configured to.

Meanwhile, a pit is provided between the lower surface of the elevator car and the bottom of the hoistway while the elevator car is located at the bottom of the hoistway, and the pit shape is lowered to a depth where the effective area of the hoistway is defined as it is. In the pit, such a pit can be provided with a ladder or a door opening with a door switch for maintenance and inspection of the elevator when the pit is extremely deep.

However, in recent years, various design changes have been provided, such as different designs of building heights to increase building aesthetics, or installation of hoisting units on the side to reduce the upper margin of the hoistway, and actively use underground spaces such as high-rise apartments. As an example for this purpose, there is a situation in which a lower drive type elevator structure without a machine room is applied.

As such, when installing the governor of an elevator in the lower part of the pit for an elevator structure or a special purpose for a special purpose, when the pit space is low, the elevator car and the governor interfere with each other when the elevator car descends to the lowest floor.

Therefore, when the governor is installed at the bottom of the pit of the hoistway in which the elevator car is driven up and down, when the elevator car descends to the lowest floor, a certain distance is secured between the elevator car and the governor, resulting from the inaccurate space between the elevator car and the governor. It is an object of the present invention to provide a link structure for an elevator governor to exclude interference.

The link structure for the elevator governor for achieving the above object, the constant speed car is installed, and when driving up and down through the hoistway, the governor for detecting the abnormal descending speed of the car to operate the emergency stop device mounted on the lower frame of the car In the bottom-type governor structure is installed under the pit of the hoistway, a separate link device is fixed to the side of the elevator car in order to space the predetermined distance between the elevator car and the governor, the link device is a governor rope on the governor side A first link member coupled to a governor rod extending through the first link member, the first link member having a substantially 'b' shape so as to be able to rotate left and right about a first fixed shaft, and one side of which is freely coupled to a bending portion of the first link member Straight second link member and the second link member It is coupled to the other side and the free end, while being coupled to the emergency stop lever provided in the emergency stop device comprises a third link member having a substantially inverted 'b' shape to be able to rotate left and right about the second fixed shaft. It features.

According to the link structure of the elevator governor of the present invention having the above-described configuration, when the pit depth is low when the governor is installed at the pit lower portion of the elevator hoistway, a separate connection between the governor and the emergency stop device mounted on the elevator car is provided. By mounting the link structure on the side of the elevator car, it can be seen that the distance between the governor and the elevator car can be secured even if the elevator car is located on the lowest floor.

1 is a front view showing a link structure for an elevator governor according to a preferred embodiment of the present invention;

2 is a side view of FIG. 1;

3 is a state diagram used in FIG.

* Description of the symbols for the main parts of the drawings *

100: elevator car, 102: elevator floor,

103: governor rod, 104: first link member,

104A, 108A: first and second fixing parts, 106: second link member,

108: third link member, 110: emergency stop lever.

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

1 is a front view showing a link structure for an elevator governor according to a preferred embodiment of the present invention, Figure 2 is a side view of FIG.

As shown in Fig. 1 and 2, when the governor is installed at the bottom of the elevator pit when the pit depth is low and difficult to install the governor, a separate link device is provided to secure the distance between the elevator car and the governor. It is mounted on the side portion, the linkage is coupled to the governor rod 103 is formed through the governor rope on the side of the governor side in a substantially 'b' shape to be able to rotate left and right about the first fixed shaft (104A) The first link member 104 and the straight second link member 106 and one side of the first link member 104 is coupled to the free end of the first link member 104 and the other side of the second link member 106 and While being coupled to the free end while being coupled to the emergency stop lever 110 provided in the emergency stop device in a substantially reverse 'b' shape to be able to rotate left and right about the second stationary shaft 108A. It comprises a third link member 108 made of.

In addition to the first and second fixed shafts 104A and 108A of the first and third link members 104 and 108 being coupled to the side surface of the elevator car 100, the second link member 106 and the governor rod 103 ), The coupling portion of the first and third link members (104, 108) coupled with the emergency stop lever 110 is fixed by a predetermined coupling means such as bolts / nuts, etc., according to the driving direction when the governor rod 103 is driven It is configured to be operated about the first / second fixed shafts 104A, 108A.

Reference numeral 102 denotes an elevator car bottom.

Next, the operation of the present invention will be described with reference to the accompanying drawings.

First, in the case of the elevator structure designed to have a low pit depth of the hoistway, an abnormal descending speed of the elevator car 110 must be detected to install an overspeed governor operating the emergency stop device mounted on the lower part of the frame of the elevator car 110. On the side of the elevator car 110, a governor rod is provided with a link device composed of the first to third link members 104, 106 and 108 to secure the distance between the elevator car 110 and the governor.

103 and the emergency stop lever (that is, the lever for driving the emergency stop device) 110 are connected to each other.

The first and second fixed shafts 104A and 108A of the link structure first and third link members 104 and 108 can be rotated in left and right directions in one direction, and by configuring such a link device, the governor and the emergency stop lever are normally While the governor and the emergency stop lever are arranged in a straight line, the governor and the emergency stop lever are kept at a distance D from the side of the elevator car.

In the above state, when the elevator car 100 is driven at an abnormal descending speed, the governor connected to the governor rod 103 side is operated to catch the governor rope and the emergency mounted on the lower frame of the elevator car 110. When the governor rod 103 is moved upward, the first link member 104 connected to the governor rod 103 has the governor rod 103 centered on the first fixed shaft 104A. ) Is moved in the moving direction (counterclockwise), and at the same time, the second link member 106 is also moved toward the first link member 104 side.

Then, the third link member 108 connected to one end of the second link member 106 is also rotated clockwise about the second fixing shaft 108A and thus the emergency stop lever connected to the third link member 108. 110 moves upward.

That is, as the governor rod 103 moves upward, the first link member 104 is counterclockwise and the third link member 108 is clockwise about the first and second fixed shafts 104A and 108A. By rotating to drive the emergency stop lever 110, the emergency stop device mounted to the lower frame of the elevator car 100 is operated to emergency stop the elevator car (100).

As described above, according to the link structure for the elevator governor of the present invention, when the governor is to be installed under the pit of the hoistway in which the elevator car is driven up and down, the distance between the governor and the emergency stop lever on the side surface of the elevator is first to first. By linking each other as a link structure consisting of three link members, when the hoistway pit depth is low, there is an effect that can prevent the interference caused by the elevator car and the governing period.

Claims (3)

When a certain elevator car is installed and driven up and down through a hoistway, a governor for detecting an abnormal descending speed of the car and operating an emergency stop device mounted on the lower part of the frame of the elevator car is installed in the lower governor structure installed under the pit of the hoistway. In A separate link device is fixed to the side of the elevator car 100 to space the predetermined distance between the elevator car 100 and the governor, and the link device includes a governor rod extending through a governor rope on the governor side. The first link member 104 and the first link member 104 having a substantially 'b' shape so as to be able to rotate left and right about the first fixed shaft 104A, and one side of the first link member 104 are freely bent. The second link member 106 is coupled to the stage and the other side of the second link member 106 is coupled to the other end of the free end while being coupled to the emergency stop lever 110 provided in the emergency stop device An elevator governor link structure, comprising: a third link member (108) formed in a substantially inverted 'b' shape so as to be able to rotate left and right about a second fixed shaft (108A). The method of claim 1, Link mechanism for the elevator governor, characterized in that the governor rod 103 and the emergency stop lever 110 is spaced apart by a predetermined distance (D) from the link device fixed to the side of the elevator car (100). The method of claim 1, When the governor rod 103 is driven upward in response to the governor driving when the elevator car 100 is abnormally driven, the first link member 104 is rotated counterclockwise about the first fixed shaft 104A. On the other hand, the third link member 108 through the second link member 106 is rotated clockwise about the second fixed shaft 108A to drive the emergency governor link, characterized in that for driving the emergency stop lever. rescue.