CN203667895U

CN203667895U - Rope lifting self-locking device

Info

Publication number: CN203667895U
Application number: CN201320775966.3U
Authority: CN
Inventors: 张伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-26
Filing date: 2013-11-26
Publication date: 2014-06-25
Anticipated expiration: 2023-11-26

Abstract

The utility model relates to a rope lifting assisting device and particularly relates to a rope lifting self-locking device. The self-locking device comprises a support frame, a self-locking mechanism and an unlocking mechanism. The self-locking mechanism comprises a cam unit and a multi-side wheel unit. The unlocking mechanism comprises a NO.3 support, a pulley mounted on the NO.3 support and a round wheel and an unlocking rope which are fixed on a NO.1 wheel shaft. The upper end of the unlocking rope bypasses a wheel groove of the pulley to be fixed at the edge of the round wheel. According to the self-locking device, the device is simple in structure, low in weight, easy to operate, large in rope diameter adaptation range and capable of assisting the rope in completing upward and downward motions automatically; during the operation in the air, workers can complete the rope rising and descending operation by standing in a bearing object without external help. The self-locking device is applicable to fire fighting, high building cleaning, outdoor adventures, searching in the air, operations in the air, high-building escaping and the like, good economic and social benefits can be produced, and good application prospects are provided.

Description

Rope lifting self-lock device

Technical field

The utility model relates to a kind of rope auxiliary lifting device, specifically, relates to a kind of rope lifting self-lock device.

Background technology

Carry out in the air in the situations such as operation, lifesaving or exploration being suspended to, to the requirement of suspention rope be not only can help desk personnel or carrier drop to safely on ground, also to complete according to actual needs personnel or carrier are carried out to safe lifting.At present, utilize the deadweight of personnel or carrier glide and can allow the device of rope self-locking very common, but these devices do not possess the function can discretionary security promoting, want by suspention rope, personnel or carrier to be promoted up and just need upwards tow of pinnacled people.

Utility model content

The purpose of this utility model is to provide the rope lifting self-lock device that the auxiliary suspention of a kind of energy rope independently completes upwards, moves downwards, to solve above-mentioned technical matters.

For achieving the above object, the technical scheme that the utility model adopts is:

A kind of rope lifting self-lock device, is characterized in that: comprise support frame, self-locking mechanism and release mechanism;

Described self-locking mechanism comprises cam gear and multiaspect wheel apparatus, described cam gear comprises wheel shaft, be fixedly mounted on wheel shaft overhead cam and be arranged on the fabric wheel on cam top by support, and a described wheel shaft is arranged on the left border middle part of support frame; Described multiaspect wheel apparatus comprises No. two supports and is arranged on No. two multiaspects on support the inner takes turns, and the outer end of described No. two supports is arranged in the middle part of the Right Border of support frame by a hinge;

Described release mechanism comprise be fixed on support frame Right Border top No. three supports, be arranged on No. three pulleys on support, be fixedly mounted on circle wheel and release rope on a wheel shaft, detouring after the race of pulley in the upper end of described release rope, is fixed on the wheel rim of circle wheel;

The left border bottom of described support frame is provided with lower sheave, the Right Border top of support frame is provided with support No. three, described No. three support bottoms are arranged on the Right Border top of support frame by No. two hinges, the middle part of No. three supports is fixed with support No. four, on the other end of No. four supports, sheave is installed.

Say further:

The inner side of the left border of described support frame is fixed with cam banking pin.

Described support frame is bilayer " day " the glyph framework structure that is parallel to each other and is fixed as one.

The neutral angle a of described cam is 270 °, and arc length is 95mm, and angle of obliquity is 12 °, and the short radius L1 of cam center angle a is 30mm, and the greatest radius L2 of cam center angle a is 50mm.

Described multiaspect is taken turns the Wheel structure that is equilateral polygon for cross-sectional plane, and it is not more than 12 ° around the neutral angle of a hinge amplitude of fluctuation

The bottom of described release rope is fixedly connected with handle; On the top of described No. three supports, be fixed with rope set collar.

Beneficial effect: compared with prior art, the utility model is simple in structure, lightweight, easy to operate, rope diameter applicable area is large, can auxiliary ropes can independently complete upwards, downward action, when hanging operation, staff, without external help, stand on the descending operation that just can complete rope in carrier.The utility model is applicable to fire-fighting, high building cleaning, field exploration, unsettledly detects, hanging operation, high-rise life saving etc., can produce good economic and social benefit, therefore, has a good application prospect.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

With reference to Fig. 1, rope lifting self-lock device described in the utility model, comprises support frame 1, self-locking mechanism and release mechanism, bilayer " day " the glyph framework structure of described support frame 1 for being parallel to each other and being fixed as one.

Described self-locking mechanism comprises cam gear and multiaspect wheel apparatus, described cam gear comprises wheel shaft 3, be fixedly mounted on wheel shaft 3 overhead cam 5 and be arranged on the fabric wheel 8 on cam 5 tops by support 7, and a described wheel shaft 3 is arranged on the left border middle part of support frame 1.The neutral angle a of described cam 5 is 270 °, and arc length is 95mm, and angle of obliquity is 12 °, and the short radius L1 of cam center angle a is 30mm, and the greatest radius L2 of cam center angle a is 50mm.Cam 5 is entered with 12 ° of angles and is transitioned into greatest radius L2 by short radius L1, like this, in use, is that suspention rope below 20mm can produce self-locking for diameter.

Described multiaspect wheel apparatus comprises No. two supports 20 and is arranged on No. two multiaspects on support 20 the inners takes turns 18, and the outer end of described No. two supports 20 is arranged in the middle part of the Right Border of support frame 1 by a hinge 19; Described multiaspect wheel 18 is the Wheel structure of equilateral polygon for cross-sectional plane, and it is not more than 12 ° around the neutral angle of hinge 19 amplitudes of fluctuation.Select the object of multiaspect wheel to be, in the time of locking, multiaspect is taken turns limited apart from cam proximal most position, loses rotation ability, thereby reaches the object of locking suspention rope.

Described release mechanism comprise be fixed on support frame 1 Right Border top No. three supports 15, be arranged on No. three pulleys 16 on support 15, be fixedly mounted on circle wheel 4 and release rope 17 on a wheel shaft 3, detouring after the race of pulley 16 in the upper end of described release rope 17, is fixed on the wheel rim of circle wheel 4; The bottom of described release rope 17 is fixedly connected with handle 22.

The left border bottom of described support frame 1 is provided with lower sheave 2, the Right Border top of support frame 1 is provided with support 13 No. three, described No. three support 13 bottoms are arranged on the Right Border top of support frame 1 by No. two hinges 14, the middle part of No. three supports 13 is fixed with on the other end of 12, No. four supports 12 of No. four supports sheave 10 is installed.On the top of described No. three supports 13, be fixed with rope set collar 11.

When use, the upper end of suspention rope 9 is walked around after fixing pinnacled pulley race, is fixed on rope set collar 11, and lower end was walked gap and the lower sheave 2 of sheave 10, fabric wheel 8, cam 5 and multiaspect wheel 18 from top to bottom successively.On the Right Border bottom of support frame 1, be fixed with suspended axle 21, carrier 23 hangs and is fixed on suspended axle 21.

Auto-lock function of the present utility model is to take turns 18 along with suspending pulling of rope 9 friction force in midair by cam 5 and multiaspect, mutually produces near rear extruding, and principle of work is summarized as follows:

1, self-locking process: operating personal stand in carrier 23, under the gravity and the effect of self-locking device self gravitation of human body and carrier 23, the carrier 23 that is loaded with operating personal drives self-locking device to decline, suspention rope 9 runs in the guide the part meeting upward movement in self-locking device, under the effect of upper sheave 10 and lower sheave 2, suspention rope 9 is oppressed cam 5, under the effect of friction force, suspention rope 9 is with moving cam 5 to rotate counterclockwise, along with the edge line radius of cam 5 increases, gap between cam 5 and multiaspect wheel 18 dwindles, until suspention rope 9 is by locking.

2, releasing process: self-locking device is in the time of self-locking state, pull handle 22, pull circle wheel 4 to clockwise rotate by release rope 17, and then be with by force moving cam 5 to clockwise rotate by a wheel shaft 3, along with the edge line radius of cam 5 reduces, gap between cam 5 and multiaspect wheel 18 increases, until suspention rope 9 is unlocked.The diameter that it should be noted that circle wheel 4 can not be too little, because the moment that release rope and circle wheel 4 connecting parts form must be greater than the moment of suspention rope locking friction force, the diameter of round wheel 4 is large, just can be more laborsaving.

3, carrier promotes self-locking process:

The operating personal standing in carrier 23 catches the bottom of suspention rope 9 to pull down, and now, operating personal is the action that is similar to chin-up, and like this, the point of action of human body application force that weight produces is transferred on sheave 2 from suspended axle 21, now, the application force that suspended axle 21 bears only has the gravity (note: the weight of carrier 23 can not exceed the body weight of operating personal of carrier, in the time that the weight of carrier 23 is greater than operating personal body weight, be equipped with in the bottom of suspention rope 9 weight of equivalent weight), after lower sheave 2 is stressed, whole self-locking device will rotate counterclockwise new libration point around No. two hinges 14, the part in self-locking device of running in the guide suspention rope 9 will realize and moving downward, and must overcome suspention rope locking friction force, and it is exactly the point of action that overcomes suspention rope locking friction force that cam 5 compresses point with 18 laminatings of multiaspect wheel, in the time that operating personal firmly pulls the bottom of suspension rope rope 9, be with by force moving cam 5 to clockwise rotate (fabric wheel 8 conflict compression suspention ropes 9, for preventing that cam 5 from rotating excessively, be fixed with cam banking pin 6 in the inner side of the left border of support frame 1), multiaspect wheel 18 rotates counterclockwise, along with the edge line radius of cam 5 reduces, gap between cam 5 and multiaspect wheel 18 becomes large, until suspention rope 9 is unlocked, the part that suspention rope 9 runs in the guide in self-locking device moves downward, and then pull self-locking device to rise overally, finally, carrier 23 is along with self-locking device is raised,

In the time that operating personal unclamps suspention rope 9, Action of Gravity Field point is got back to suspended axle 21 again, the carrier 23 that is loaded with operating personal drives self-locking device to decline, and suspention rope 9 runs in the guide the part upward movement again in self-locking device, but is taken turns 18 lockings by cam 5 and multiaspect again very soon;

Be loaded with the height that the carrier 23 of operating personal declines and be less than the height being raised, pulling suspention rope so repeatedly, just can realize the carrier 23 that is loaded with operating personal and be promoted to predetermined altitude.

Claims

1. a rope lifting self-lock device, is characterized in that: comprise support frame (1), self-locking mechanism and release mechanism;

Described self-locking mechanism comprises cam gear and multiaspect wheel apparatus, described cam gear comprises a wheel shaft (3), be fixedly mounted on a wheel shaft (3) overhead cam (5) and be arranged on the fabric wheel (8) on cam (5) top by a support (7), and a described wheel shaft (3) is arranged on the left border middle part of support frame (1); Described multiaspect wheel apparatus comprises No. two supports (20) and is arranged on multiaspect on No. two supports (20) the inner wheel (18), and the outer end of described No. two supports (20) is arranged on by a hinge (19) in the middle part of the Right Border of support frame (1);

Described release mechanism comprise be fixed on support frame (1) Right Border top No. three supports (15), be arranged on pulley (16) on No. three supports (15), be fixedly mounted on circle wheel (4) and release rope (17) on a wheel shaft (3), detouring after the race of pulley (16) in the upper end of described release rope (17), is fixed on the wheel rim of circle wheel (4);

The left border bottom of described support frame (1) is provided with lower sheave (2), the Right Border top of support frame (1) is provided with No. three supports (13), described No. three supports (13) bottom is arranged on the Right Border top of support frame (1) by No. two hinges (14), the middle part of No. three supports (13) is fixed with No. four supports (12), and sheave (10) is installed on the other end of No. four supports (12).

2. rope lifting self-lock device according to claim 1, is characterized in that: the inner side of the left border of described support frame (1) is fixed with cam banking pin (6).

3. rope lifting self-lock device according to claim 1, is characterized in that: bilayer " day " the glyph framework structure of described support frame (1) for being parallel to each other and being fixed as one.

4. rope lifting self-lock device according to claim 1, it is characterized in that: the neutral angle a of described cam (5) is 270 °, arc length is 95mm, and angle of obliquity is 12 °, the short radius L1 of cam center angle a is 30mm, and the greatest radius L2 of cam center angle a is 50mm.

5. rope lifting self-lock device according to claim 1, is characterized in that: described multiaspect wheel (18) is the Wheel structure of equilateral polygon for cross-sectional plane, and it is not more than 12 ° around the neutral angle of a hinge (19) amplitude of fluctuation.

6. rope lifting self-lock device according to claim 1, is characterized in that: the bottom of described release rope (17) is fixedly connected with handle (22); On the top of described No. three supports (13), be fixed with rope set collar (11).