CN2868955Y

CN2868955Y - Lifter anti-drop safety device

Info

Publication number: CN2868955Y
Application number: CN 200520117156
Authority: CN
Inventors: 陈三柯
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-09
Filing date: 2005-12-09
Publication date: 2007-02-14
Anticipated expiration: 2015-12-09

Abstract

The elevator anti-drop safety device comprising a bracket (8) and mobile control mechanism and characterized in that the mobile control mechanism is arranged at the top or bottom of a car (1) at a position corresponding to the bracket (8). The mobile control mechanism is composed of a swing link (6), a steel pull rope (3) and pins. The swing link (6) may be provided at the top of bottom of the car in a rotary way and has its two arms connected with a pin flexibly and the other pin flexibly. One arm of the swing link (6) is further connected with the steel pull rope (3) whose other end is, through a guide wheel (31), fixed with a hoist (21) hung on one piece of steel rope (2). The elevator anti-drop safety device is characterized in that the steel pull rope is fixed with the hoist through the guide wheel so that the position of the hoist will keep unchanged as long as the steel pull rope suffers from no rupture and that the pin shaft will also not stretch out from the shaft sleeve even if the car descends rapidly in a zero gravity status; when the steel pull rope suffers from a rupture, the hook will drop downwards and suffer from a displacement, and the pull force of the inner end of the pin shaft at this time will disappear and further the pin shaft is pushed out from the shaft sleeve by one piece of spring, in other words, the car will then be hung on a leading axle.

Description

The hoist falling-proof safety device

Technical field

The utility model relates to a kind of hoist falling-proof safety device.

Background technology

Existing elevator does not have anti-dropping safety device, when suspension heavy weight, in case personal casualty and equipment breaking-up accident will take place in the rope fracture.The patent No. has proposed a kind of anti-fall safeguard construction for the 200420026588.X name is called " safety device of elevator " for this reason, its architectural feature is that it is made up of guide rail and braking working part two parts, have vertical track on the guide rail, guide rail is having the sawtooth of swinging to towards weight casing one side; The braking working part is made up of portable bar and Brake Block, Brake Block has opening in guide rail sawtooth one side, portable bar is connected on the Brake Block by hinge pin, portable bar is long partially in the hinge pin bottom, prop up by strut, being skewed portable bar bottom has angle, and the page or leaf of horizontal direction is arranged in both sides, portable bar lower end, and the Brake Block inner chamber has occipitalia and stopper section.Though this structure has certain anti-fall effect, it has a fatal shortcoming, and when elevator descends and rare when weightless fast, its portable bar will deflection and car is suspended on the guide rail, thereby reduce the work efficiency of elevator, makes troubles to use.So its structure awaits to improve.

Summary of the invention

Technical problem to be solved in the utility model be provide at above-mentioned prior art present situation a kind of project organization rationally, use high efficiency and the hoist falling-proof safety device of security insurance effect only just take place when cables break.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this hoist falling-proof safety device, include carriage and movable control mechanism, described carriage is for outside the both sides that are arranged at car respectively and slide up and down, it is characterized in that described movable control mechanism be arranged at the top of car or bottom and with the carriage opposite position, this activity control mechanism includes fork, steel stay cord and bolt device, described fork is arranged on the top or bottom of car rotationally, described fork one arm and bolt device flexibly connect, and another arm of fork and another bolt device flexibly connect, and described fork one arm and steel stay cord link together, and the other end of steel stay cord fixes by track adjusting wheel and the cucurbit that hangs on the cable wire.

As improvement, described bolt device can comprise preferably bearing pin, axle sleeve, stage clip and connecting rod, described axle sleeve is arranged at respectively and the corresponding car of carriage both sides separately, its outer end of described bearing pin can from axle sleeve, stretch out or retraction be arranged in the inner chamber of axle sleeve, described stage clip also is arranged in the inner chamber of axle sleeve, one end of this stage clip contacts mutually with the inner end of bearing pin, and the diapire in the other end of stage clip and the axle sleeve contacts mutually, described connecting rod one end is connected with the bearing pin inner end, and the other end of connecting rod is connected with the fork arm; Described axle sleeve is to be fixed on the cross beam frame of car bottom outer surface, and its middle part of described fork is rotatably connected to cross beam frame by roller pin; And described fork and steel stay cord can interconnect by drawing to climb.

Improve, described carriage can design and be stepped appearance, and the distance between carriage and the carriage is 5 to 50 centimetres again.

Compared with prior art, the utility model because of adopt with movable control mechanism be arranged at the top of car or bottom and with the carriage opposite position, described movable control mechanism includes bearing pin, axle sleeve, stage clip, fork and steel stay cord, described axle sleeve is arranged at respectively and the corresponding car of carriage both sides separately, its outer end of described bearing pin can from bore sleeve, stretch out or retraction be arranged in the inner chamber of axle sleeve, described stage clip also is arranged in the inner chamber of axle sleeve, one end of this stage clip contacts mutually with the inner end of bearing pin, and the diapire in the other end of stage clip and the axle sleeve contacts mutually, described fork is arranged on the medium position of car top or bottom rotationally, one arm of described fork is connected with the bearing pin inner end by connecting rod, and another arm of fork is connected with the inner end of another bearing pin by another connecting rod, and a wherein arm of fork is connected with the steel stay cord, and the steel stay cord fixes by steel cable track adjusting wheel and cucurbit.Its advantage is that the steel stay cord fixes by track adjusting wheel and cucurbit, like this, as long as the steel stay cord does not rupture, then the position of cucurbit just can not be offset, promptly descend fast and when being in state of weightlessness, bearing pin can not stretch out from axle sleeve when car, this makes bearing pin malfunction occur with regard to having been avoided car effectively because of the interference of descending speed, thereby improved the work efficiency of elevator, also brought convenience to use; And when the steel stay cord ruptures, then cucurbit falls downwards and the occurrence positions skew, this moment, the pulling force of bearing pin inner end disappeared, stage clip is extrapolated from bore sleeve with bearing pin, promptly in time car is suspended on the carriage, project organization is very reasonable, is a kind of product that practicality is arranged very much therefore, is worthy of popularization.Bearing pin is quilt from axle sleeve

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the cutaway view of A-A line among Fig. 1;

Fig. 3 is the enlarged drawing of I portion among Fig. 2.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1, Fig. 2 and shown in Figure 3, the hoist falling-proof safety device of present embodiment includes carriage 8 and movable control mechanism, and described carriage 8 is for vertically distributing and being positioned at outside the both sides that car 1 slides up and down.See shown in Figure 2.Described state movable control mechanism be arranged at car 1 the bottom and with carriage 8 opposite positions, described movable control mechanism includes bearing pin 4, axle sleeve 9, stage clip 91, fork 6 and steel stay cord 3, described axle sleeve 9 is arranged at respectively and carriage 8 corresponding cars 1 both sides separately, see shown in Figure 2ly, and be fixed on the cross beam frame 5 of car 1 bottom outer surface.These bearing pin 4 its outer ends can from axle sleeve 9, stretch out or retraction be arranged in the inner chamber 92 of axle sleeve 9, described stage clip 91 also is arranged in the inner chamber 92 of axle sleeve 9, see shown in Figure 3, one end of this stage clip 91 contacts mutually with the inner end 42 of bearing pin 4, and the diapire 93 in the other end of stage clip 91 and the axle sleeve 9 contacts mutually, see shown in Figure 3ly, described fork 6 is arranged on the medium position of car 1 top or bottom rotationally, and its middle part is rotatably connected to cross beam frame 5 by roller pin 62.One arm 6a of described fork 6 is connected with bearing pin inner end 42 by connecting rod 7, and another arm 6b of fork 6 is connected with the inner end of another bearing pin 4a by another connecting rod 7a, and an arm 6a of fork 6 is connected with steel stay cord 3 one ends, and the junction of described fork 6 and steel stay cord 3 and fork 6 and connecting rod 7,7a is all climbed 61 and is linked together by drawing, see shown in Figure 2ly, the other end of described steel stay cord 3 fixes by track adjusting wheel 31 and the cucurbit 21 that hangs on the cable wire 2.Described carriage 8 is stepped appearance, and the distance between carriage 8 and the carriage 8 is 50 centimetres, and the distance between carriage 8 and the carriage 8 also can be 3 to 49 centimetres certainly, specifically can decide according to design.

Working process of the present utility model is as follows:

When car draws and during oscilaltion opening of cable wire, owing to bearing pin is held in the inner chamber that is in the retraction axle sleeve by the steel stay cord, but car easy on and off lifting this moment, when cable wire ruptures suddenly, cucurbit falls from cable wire, and the pulling force of bearing pin inner end disappears in this moment axle sleeve, and stage clip is extrapolated and be shelved on the carriage from axle sleeve with bearing pin, even car is suspended in the carriage, thereby plays anti-fall and reach the purpose of working service.

Claims

1, a kind of hoist falling-proof safety device, include carriage (8) and movable control mechanism, described carriage (8) is for outside the both sides that are arranged at car (1) respectively and slide up and down, it is characterized in that described movable control mechanism be arranged at the top of car (1) or bottom and with carriage (8) opposite position, this activity control mechanism includes fork (6), steel stay cord (3) and bolt device, described fork (6) is arranged on the top or bottom of car (6) rotationally, described fork (6) one arm and bolt device flexibly connect, and another arm of fork (6) and another bolt device flexibly connect, and described fork (6) one arm and steel stay cord link together, and the other end of steel stay cord (3) fixes by track adjusting wheel (31) and the cucurbit (21) that hangs on the cable wire (2).

2, hoist falling-proof safety device according to claim 1, it is characterized in that described bolt device includes bearing pin (4), axle sleeve (9), stage clip (91) and connecting rod (7), described axle sleeve (9) is arranged at respectively and the corresponding car of carriage (8) (1) both sides separately, its outer end of described bearing pin (4) can from axle sleeve (9), stretch out or retraction be arranged in the inner chamber (92) of axle sleeve (9), described stage clip (91) also is arranged in the inner chamber (92) of axle sleeve (9), one end of this stage clip (91) contacts mutually with the inner end (42) of bearing pin (4), and the diapire (93) in the other end of stage clip (91) and the axle sleeve (9) contacts mutually, described connecting rod (7) one end is connected with bearing pin inner end (42), and the other end of connecting rod (7) is connected with fork (6) arm.

3, hoist falling-proof safety device according to claim 2, it is characterized in that described axle sleeve (9) for to be fixed on the cross beam frame (5) of car (1) bottom outer surface, and its middle part of described fork (6) is rotatably connected to cross beam frame (5) by roller pin (62).

4, hoist falling-proof safety device according to claim 3 is characterized in that described fork (6) and steel stay cord (3) climb (61) and interconnect by drawing.

5,, it is characterized in that described carriage (8) is stepped appearance, and the distance between carriage (8) and the carriage (8) is 5 to 50 centimetres according to the described hoist falling-proof safety device of arbitrary claim in the claim 1 to 4.