CN208911326U - fall arrester - Google Patents

Abstract

A falling protector is connected with a life belt and comprises: a frame body with a containing space; a shaft lever arranged on the frame body; the speed reducer is connected with the shaft rod and positioned in the accommodating space, the periphery of the speed reducer is provided with a plurality of friction surfaces, and the friction surfaces are arranged at intervals; the life belt seat is sleeved on the speed reducer and provided with an outer ring surface and an inner ring surface, the outer ring surface is used for winding the life belt, and the inner ring surface is in contact with the friction surfaces of the speed reducer. Through the design, the rotating friction force generated by the friction between the inner ring surface of the life belt seat and the friction surface of the speed reducer can effectively slow down and buffer the descending speed of the life belt so as to improve the safety of users and reduce the injury to the users.

Description

Catching device

Technical field

The utility model is related with catching device, more particularly to refers to a kind of catching device suitable for high altitude operation place.

Background technique

Generally in the high altitude operation places such as roof, factory, elevator reparing, shipbuilding, space flight base, construction site, mostly Personnel can be implored in operation, be equipped with safe components such as catching device (dropping preventers), the catching device is for being connected with life belt collocation Use, and one end of the life belt ties up on the body of staff, whereby, when staff accidentally from falling from high altitude when, this is anti- Pendant device can make the movement of lock in emergency or buffering to the life belt, to prevent personnel from continuing to fall or for buffering the pendant of personnel Terminal-velocity degree, and then ensure the personal safety of staff.

The visible catching device in market is mainly the following scheme at present, for example, a kind of design is in catching device Life belt structure on make can the design of elastic stretching whereby, can elastic stretching when being to there are the personnel of life belt to fall Life belt can be used to buffer, slow down the speed of falling of personnel.However, such design must consider length, the bullet of life belt The factors such as property drawing coefficient, the height of high altitude operation joined together and personnel's weight, and if operation height and life belt When the cooperation of ideal role length is bad, it is more likely that, life belt rebound is too late and personnel have fallen to ground, and Missing.

In addition, there is a kind of design of catching device to be, wherein one section of work of life belt sutures overlappingly, whereby, works as people When member falls, the position of the overlapping suture of life belt will be ripped because of stress, to absorb the fall energy of personnel part, be come Achieve the effect that buffering.But such design can generate the destruction in structure to life belt, so that the intensity of life belt, carrying Power decline, and dangerous hidden danger.

In addition to this, the mode for separately thering is a kind of catching device to take quick locking, that is, when personnel fall and generate moment When pulling force, catching device is by its life belt of lock in emergency so that life belt is not continuous falls, wherein although such design can reach immediately The effect that prevention personnel fall, however the instant impact caused by the moment of its emergent stopping (such as G-Force) and anti-work Firmly, it would be possible to which causing personnel to obtain internal injury even has the fortuitous event of bone fracture, and needs to be improved place.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of catching device, it can avoid personnel from high-altitude high-speed falling, In addition to this, be also equipped with simple process and it is quick the advantages that.

In order to achieve the above objectives, the utility model provides a kind of catching device, for a lifesaving band connection comprising have: One frame body has an accommodating space；One shaft is set on the frame body；One reduction is connect with the shaft, and is located at the appearance In between emptying, the periphery of the reduction has multiple rubbing surfaces, the setting spaced apart of these rubbing surfaces；One lifesaving is usherd to seat, set In the reduction, which has an outer ring surface and an inner ring surface, the outer ring surface with for the lifesaving tape wrapping, The inner ring surface is in contact with these rubbing surfaces of the reduction.

Wherein, the reduction and the shaft are the same as dynamic.

Wherein, these rubbing surfaces are along the axially extending of the reduction.

Wherein, which has a perforation；The shaft passes through the perforation.

Wherein, the structure that the reduction and the shaft are one of the forming.

Wherein, there are multiple joint faces in the periphery of the reduction, respectively the joint face is connected to the two neighboring rubbing surface Between；Wherein, respectively the rubbing surface to be formed without departing from enclosing to set positioned at the respectively extended surface of two joint faces of the rubbing surface two sides Region.

Wherein, there are multiple joint faces in the periphery of the reduction, respectively the joint face is connected to the two neighboring rubbing surface Between；And respectively the joint face is plane.

Wherein, there are multiple joint faces in the periphery of the reduction, respectively the joint face is connected to the two neighboring rubbing surface Between；And respectively the joint face is cancave cambered surface.

Wherein, which is constituted after forming these rubbing surfaces by multiple seamed edges of a regular polygon column are processed.

The effect of the utility model is, is in contact through the rubbing surface of reduction periphery with the inner ring surface that lifesaving is usherd to seat Design, when connect the staff of life belt accidentally from falling from high altitude when, reduction and lifesaving usher to seat between can produce rotation and rub Power is wiped, so as to slow down, buffer the speed of staff's tenesmus.

Detailed description of the invention

Fig. 1 is the perspective view of the catching device of an embodiment of the present invention；

Fig. 2 and Fig. 3 is the exploded view of the catching device of above-described embodiment；

Fig. 4 and Fig. 5 is the side view of the reduction of above-described embodiment；

Fig. 6 is the schematic diagram for illustrating brake block to throw away and fasten with stop part；

Fig. 7 is side view, discloses reduction, lifesaving and ushers to seat the relationship between life belt；

Fig. 8 is the side view of another embodiment, discloses the reduction of different structure designs.

Symbol description:

Catching device 100

Frame body 10

12 side plate 121,122 of bracket, perforation 123,124

125 hanging ring 14 of stop section

20 positioning region of shaft, 22 grooving 24

Lifesaving ushers to seat 30

Outer ring surface 30a inner ring surface 30b

32 sleeve of attic base, 34 lantern ring 36

Notch 360

344 second attic base 346 of reinforcement column

Reduction 40

The perforation of corner 40a rubbing surface 41 42

43 location hole 44 of joint face

Brake disc 50

52 location hole 54 of centre bore

Brake assemblies 60

62 reset spring 64 of brake block

70 end 72,74 of scroll spring

Side cover 80

90 first half-shell of shell, 92 second half-shell 94

Life belt 200

Extended surface L1, L2

Reduction 40 '

41 ' joint face 43 ' of rubbing surface

Specific embodiment

For that can be illustrated more clearly that the utility model, now enumerates a preferred embodiment and cooperate attached drawing detailed description is as follows. It please refers to shown in Fig. 1 to Fig. 7, is the catching device 100 of an embodiment of the present invention, to connect a life belt 200 comprising There are a frame body 10, a shaft 20, a lifesaving to usher to seat 30 and a reduction 40.In addition, in the present embodiment, the catching device 100 It further comprise having a brake disc 50, a brake assemblies 60, a scroll spring 70, a side cover 80 and a shell 90.

The frame body 10 includes that a bracket 12 and one are incorporated into the hanging ring 14 at 12 top of bracket, which, which encloses, sets shape Cheng Youyi accommodating space, the bracket 12 have two facing side plates 121,122, and two in two side plates 121,122 are opposite A perforation 123,124 is offered at position respectively.In addition, a stop section 125 is formed in the side plate 121, preferably, in this reality It applies in example, if there are two stop sections 125.The hanging ring 14 can be used as to hang or be fixed on a stable supporter One fulcrum, such as can be, but not limited to hanging on the supporters such as a hawser, beam column.

The shaft 20 is set on frame body 10.In the present embodiment, the both ends of the shaft 20 are each passed through two side plate 121,122 perforation 123,124.

The lifesaving, which is usherd to seat, 30 to be sheathed on the shaft 20, and is located in the accommodating space, which ushers to seat and 30 have outside one Anchor ring 30a and an inner ring surface 30b, outer ring surface 30a are with for the life belt 200 winding.In the present embodiment, the life belt Seat 30 includes an attic base 32, a sleeve 34 and a lantern ring 36, and the sleeve 34 and the lantern ring 36 are connected to the one of the attic base 32 Side please cooperates shown in Fig. 6 together, which has outer ring surface 30a and inner ring surface 30b, the lantern ring 36 around this The periphery of sleeve 34, and there is a notch 360, one end of the life belt 200 can connect, be wound in the outer ring surface 30a of sleeve 34, And part is pierced by from notch 360, and can be wound on the outer ring surface of sleeve 34.In addition, in one embodiment, the life belt Seat 30 can also be not provided with lantern ring 36, and life belt 200 is wound in the outer ring surface 30a of sleeve 34.

The reduction 40 is connect with the shaft 20, and is located in the accommodating space, and the periphery of the reduction 40 has multiple Rubbing surface 41, these settings spaced apart of rubbing surface 41.In the present embodiment, which has a perforation 42 and position The perforation 42 of multiple location holes 44 around the perforation 44, the reduction 40 is connected with so that the shaft 20 passes through.In addition, In one embodiment, the structure that the reduction 40 can also be one of the forming with the shaft 20.These frictions of the reduction 40 Face 41 is along the axially extending of the reduction 40 and arranges at intervals.

It please cooperate shown in Fig. 4 and Fig. 5, in the present embodiment, the reduction 40 is processed by a regular quadrangle column After formed, such as by processed these rubbing surfaces 41 of formation of four seamed edges of the regular quadrangle column, for example, can be used as polishing, Regular quadrangle column is removed adjacent to the corner 40a of four seamed edges and constitutes these sections and circle is presented by the processing methods such as grinding, cutting The rubbing surface 41 of arc.In addition, the reduction 40 can also be passed through by multiple seamed edges of other regular polygon columns in other application Processing is constituted after forming rubbing surface, for example, regular triangular column, regular pentagon column, regular hexagon column etc..

It is noted that please cooperate shown in Fig. 5, the periphery of the reduction 40 also has multiple joint faces 43, respectively the company Junction 43 is connected between the two neighboring rubbing surface 41, and in the present embodiment, these joint faces 43 are plane.Particularly It is that respectively the rubbing surface 41 encloses without departing from extended surface L1, L2 of respectively two of 41 two sides of the rubbing surface joint faces to set to be formed Region.By above-mentioned design, it can help to 40 light-weight design of reduction.

By above-mentioned design, reduction 40 provided by the utility model has processing method simple and processes quick etc. excellent The processed formation rubbing surface of multiple seamed edges of one regular polygon column for example may make up reduction 40 by gesture.

The brake disc 50 has a centre bore 52, with for being connect with one end of shaft 20, in the present embodiment, it is described in Heart hole 52 is square hole, and one end of shaft 20 has a positioning region 22, which is sticked in the centre bore 52, and So that shaft 20 and brake disc 50 are same dynamic, in addition, the brake disc 50 is additionally provided with multiple location holes 54, it in one embodiment, can be saturating Multiple locating pieces (such as bolt) is crossed to pass through these location holes 54 and lock and set in these location holes 44 for being fixed on reduction 40, and So that brake disc 50 and reduction 40 are with moving, whereby, the shaft 20, brake disc 50 and reduction 40 are rotated synchronously.

The brake assemblies 60 include a brake block 62 and a reset spring 64, which is hubbed at the brake disc On 50；64 one end of reset spring is connected to one end of brake block 62, and the other end is connected to brake disc 50, which mentions For an elastic force so that brake block 62 has a gesture for inside contracting positioning at any time, such as traction braking block 62 inside contract and not with frame body 10 Contact.In the present embodiment, there are two groups of brake assemblies 60 to be set in the brake disc 50.

The scroll spring 70 is set in the side cover 80, and one end 72 of the scroll spring 70 is connect with shaft 20, such as In the present embodiment, one end 72 of the scroll spring 70 is connected in a grooving 24 of shaft 20；The scroll spring 70 it is another One end 74 is then incorporated into side cover 80.The scroll spring 70 and the side cover 80 are incorporated into the side that side plate 122 deviates from side plate 123.

The shell 90 is to accommodate the frame body 10, shaft 20, lifesaving are usherd to seat 30, reduction 40, brake disc 50, brake assemblies 60 etc., in the present embodiment, the shell 90 includes the first half-shell 92 and one second half-shell 94 that can be connected to each other combination.

Whereby, by said structure design, at staff in stabilization, do not have the use situation sharply fallen Under, for example, personnel normally when walking on such as a workbench, pallet, are defined herein as under one first mode of operation, The brake assemblies 60 are maintained at the gesture for inside contracting positioning, and are not in contact with the stop section 125 on frame body 10, at this point, the brake disc 50 and the reduction 40 and the lifesaving usher to seat and 30 rotate coaxially (or can rotate synchronously), and when life belt 200 is stretched, example Such as: when having the staff of life belt 200 far from the catching device 100 life belt 200 to be stretched, scroll spring 70 will be with Life belt 200 be stretched and stretch, thus can accumulate therewith and have a roll of coiled restoring force (or elastic force)；In addition, working as When staff is close to catching device 100, the elastic force that decrease is less than scroll spring 70 by the power of life belt 200 is stretched, at this point, whirlpool Coil spring 70 will generate elastic recovery and store in rolls, and then drives life belt 200 to wind withdrawal lifesaving once again together and usher to seat On 30.

And under another use situation, when life belt 200 is suddenly stretched by moment, such as: there is the people of life belt 200 Member accidentally from falling from high altitude when, life belt 200 will be stretched sharp, be defined herein as under one second mode of operation, please be cooperated Shown in Fig. 6, which will be acted on by a moment loading or by a centrifugal force and overcome the elastic force of reset spring 64 and outside It throws away, and brake block 62 is fastened with stop section 125, at that time, which will be by brake assemblies 60 and stop section 125 The influence that fastens and it is fixed, and also fix with the reduction 40 of 50 Joint of brake disc without rotating.Separately please match together It closes shown in Fig. 7, later, lifesaving ushers to seat 30 because the stretch effects by life belt 200 will be rotated persistently, and is usherd to seat in 30 by lifesaving The relationship that anchor ring 30b is matched with these rubbing surfaces 41 of fixed reduction 40 is usherd to seat in lifesaving and 30 is subtracted relative to this When fast part 40 rotates, the rubbing surface 41 of reduction 40 will rub with inner ring surface 30b phase and generate rotation friction, can subtract whereby Slow or limitation lifesaving usher to seat 30 revolving speed, and then reach the pendant of the personnel of speed and direct bearing that buffering life belt is stretched and declines The purpose of terminal-velocity degree.

In addition, please cooperate shown in Fig. 8, the design for having the reduction 40 ' of catching device of another embodiment, the reduction are disclosed 40 ' with the reduction 40 of previous embodiment the difference is that, the joint face 43 ' between adjacent two rubbing surface 41 ' is taken The design of cancave cambered surface, in this way, can help to carry out further light-weight design to reduction 40 '.

The foregoing is merely the preferable possible embodiments of the utility model, all application the utility model specifications and application Equivalence changes made by the scope of the patents ought to be included in the scope of the patents of the utility model.

Claims (9)

1. a kind of catching device, for a lifesaving band connection, which is characterized in that include:

One frame body has an accommodating space；

One shaft is set on the frame body；

One reduction is connect with the shaft, and is located in the accommodating space, and the periphery of the reduction has multiple frictions Face, the setting spaced apart of these rubbing surfaces；

One lifesaving is usherd to seat, and is sheathed in the reduction, and the life belt seat tool has an outer ring surface and an inner ring surface, described outer With for the lifesaving tape wrapping, the inner ring surface is in contact anchor ring with these rubbing surfaces of the reduction.

2. catching device according to claim 1, which is characterized in that wherein the reduction and the shaft are the same as dynamic.

3. catching device according to claim 1, which is characterized in that wherein these described rubbing surfaces are along the reduction It is axially extending.

4. catching device according to claim 1, which is characterized in that wherein the reduction has a perforation；The shaft Across the perforation.

5. catching device according to claim 1, which is characterized in that wherein the reduction is one of the forming with the shaft Structure.

6. catching device according to claim 1, which is characterized in that wherein, there are multiple companies in the periphery of the reduction Junction, each joint face are connected between the two neighboring rubbing surface；Wherein, each rubbing surface is without departing from positioned at each institute The extended surface for stating two joint faces of rubbing surface two sides encloses the region for setting and being formed.

7. catching device according to claim 1, which is characterized in that wherein, there are multiple companies in the periphery of the reduction Junction, each joint face are connected between the two neighboring rubbing surface；And each joint face is plane.

8. catching device according to claim 1, which is characterized in that wherein, there are multiple companies in the periphery of the reduction Junction, each joint face are connected between the two neighboring rubbing surface；Each joint face is cancave cambered surface.

9. catching device according to claim 1, which is characterized in that wherein the reduction is by the multiple of a regular polygon column It is constituted after processed these rubbing surfaces of formation of seamed edge.