CN201168358Y

CN201168358Y - Equipment for preventing falling-down

Info

Publication number: CN201168358Y
Application number: CNU2008200456086U
Authority: CN
Inventors: 陈锦鹏
Original assignee: WENZHOU XINDE ELECTRIC FITTINGS CO Ltd
Current assignee: WENZHOU XINDE ELECTRIC FITTINGS CO Ltd
Priority date: 2008-03-28
Filing date: 2008-03-28
Publication date: 2008-12-24
Anticipated expiration: 2018-03-28

Abstract

The utility model provides an anti-dropping device, comprising a shell 4, a lock catch block 3, a pulley 13 and a lock catch shaft 1; wherein, the lock catch block 3 can pass through the bottom of the shell 4, the fixed end of the lock catch block 3 is arranged in the shell 4 and is movably connected with the shell 4 by the lock catch shaft 1, the lock catch block 3 can rotate around the axle center 1 in the shell 4; in addition, the lock catch block 3 is provided with a lock catch groove 2 which is matched with a fixture block 8 on a lead rail 5; the upper part of the shell 4 is provided with a through hole 14, the lock catch block 3 is provided with a counter bore 9 that is corresponding to the through hole 14, the counter bore 9 and the through hole 14 are connected by an embedded type spring gear, the fixture block 8 is formed on the lead rail 5 by stamping and is matched with the lock catch groove 2, so that the lock catch groove 2 can fasten the lead rail 5 to prevent dropping. The anti-dropping device can solve the safety problem of aloft working personnel in ascending, returning, transferring and aloft fixed working and achieve better protective effect in the whole aloft working process.

Description

A kind of equipment of fall arrest

Technical field

The utility model relates to high-altitude fall arrest lifesaving safety device, relates in particular to a kind ofly to be used for work high above the ground personnel with belt under the situation of falling suddenly, the equipment of energy automatic falling-proof.

Background technology

In fields such as electric power power transmission and transformation line shaft tower, power transformation framework, communication shaft tower and building, all be unable to do without ascend operation, in recent years, electric power development speed is very fast, also require more and more higher to the safety management level, the task of power grid construction and transformation is also more and more heavier, a large amount of constructions, service work task all relate to ascend operation, if there is not reliable fall arrest equipment, will bring huge potential safety hazard to the operating personnel.For this reason, usually, the ascend operation personnel adopt the situation of fastening the safety belt, but because common safety belt limitation and shaft tower structurally lacks effective protective device, when the work high above the ground personnel slip accidentally, do not play anti-fall effect.

For this reason, industry is researched and developed the work high above the ground falling-proof safety device, for example, it is anti-fall etc. to use catching device to carry out, but the catching device that uses in the work high above the ground now mainly produces braking effect by the frictional force between catching device and the guide rail, and the operating personnel is upper and lower when mobile, all must swing both arms or body inclination and can guarantee that just catching device slides in guide rail, and when adverse circumstances operations such as rain, snow, freeze weather and greasy dirt, not only can not play anti-fall effect, also can bring great danger to the operating personnel; And adopting the anti-fall application facet of spring auxiliary braking, the spring of catching device all is that on-line equipment is among housing and catching device parts clearance, in use move continually, elastic force controls when inhomogeneous spring and is very easy to bullet and takes off, cause the anti-fall inefficacy of auxiliary braking, therefore this catching device also all exists unsafe factor in actual applications.

The utility model content

The technical problem that the utility model solves provides a kind of equipment of fall arrest, with solve the work high above the ground personnel ascend a height, return, the safety problem of transfer and high-altitude fixed operation, make the work high above the ground overall process obtain better protect.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of equipment of fall arrest comprises:

Housing 4, snap close piece 3, pulley 13 and snap close axle 1, wherein said snap close piece 3 can run through described housing 4 bottoms, its stiff end is inserted in the described housing 4, and by described snap close axle 1 and described housing 4 flexible connections, described snap close piece 3 can be rotated in housing 4 around described snap close axle 1, in addition, described snap close piece 3 is provided with the lock buckling groove 2 that cooperates with fixture block 8 on the guide rail 5;

The top of described housing 4 has through hole 14, on described snap close piece 3, have the counterbore 9 corresponding with through hole 14, link to each other by inserted spring assembly between this counterbore 9 and the through hole 14, and stamp out fixture block 8 on the guide rail 5, described card fast 8 cooperates with lock buckling groove 2, realizes anti-fall so that lock buckling groove 2 fastens guide rail 5.

Alternatively, have through hole 7 in the bottom of described housing 4, the end that described snap close piece 3 is provided with lock buckling groove 2 can pass this through hole 7 and stretch out outside the housing 4.

Alternatively, the movable end of described snap close piece 3 is subjected to a side of safety belt pulling to have the space of running through snap close.

Alternatively, described inserted spring assembly comprises:

Adjustment screw 12, spring 11, bullet pin 10 wherein pressing spring 11 by adjustment screw 12, and spring 11 are being pressed bullet pin 10, and counterbore 9 is linked to each other with through hole 14.

Alternatively, described guide rail 5 is a C type guide rail.

Compared with prior art, the utlity model has following beneficial effect:

At first, owing to adopt bayonet type anti-fall, the operating personnel, need not swing both arms or body inclination and can both guarantee that the equipment of fall arrest slides freely in guide rail when mobile upper and lower, has increased bigger security and work convenience when climbing for the work high above the ground personnel.

Secondly, the equipment of bayonet type fall arrest can not come off again because the inserted spring assembly of employing makes the elastic force of spring keep constant, thereby has guaranteed the safe effect of the equipment of fall arrest.

Once more, the equipment of bayonet type fall arrest has unique lock buckling groove design, and the equipment of fall arrest is latched in rapidly and exactly on the guide rail fixture block, realizes the anti-fall purpose of locking fast and safely, has improved the security and the reliability of the equipment of fall arrest greatly.

Once more; bayonet type locking braking is to utilize the snap close button to ride over locking generation braking on the guide rail fixture block; overcome between the equipment of existing fall arrest and the guide rail scope because of coefficient of friction and be difficult for determining the low problem of anti-fall security that caused; even when adverse circumstances operations such as rain, snow, freeze weather and greasy dirt, also can play good anti-falling protection.

In addition, because the fixture block spacing on the guide rail can be designed to 12.5CM, braking distance is short, and impulsive force is little.

Description of drawings

Fig. 1 is that the snap close piece of the equipment specific embodiment of the utility model fall arrest screws out the outer profile side view of housing bottom;

Fig. 2 is the equipment of the snap close piece of the equipment specific embodiment of the utility model fall arrest fall arrest when not pinning fixture block and the cutaway view that C shape guide rail cooperates;

Fig. 3 is the equipment of the snap close piece of the equipment specific embodiment of the utility model fall arrest fall arrest when pinning fixture block and the cutaway view that C shape guide rail cooperates;

Fig. 4 is that the snap close piece of the equipment specific embodiment of the utility model fall arrest screws out the outer vertical view of housing bottom;

Fig. 5 is that the snap close piece of the equipment specific embodiment of the utility model fall arrest screws out the outer front view of housing bottom.

The specific embodiment

Elaborate the utility model below in conjunction with accompanying drawing and realize anti-fall principle.

With reference to figure 1～shown in Figure 5, the stiff end of the snap close piece 3 of the equipment of this fall arrest is inserted in the housing 4, flexibly connect by snap close axle 1 and housing 4, snap close piece 3 can be rotated in housing 4 around snap

close axle

1,3 designs of this snap close piece have the lock buckling groove 2 that cooperates with fixture block 8 on the guide rail 5 (for example C shape guide rail), and a side that spurred by safety belt has the space of running through snap close.In addition, can offer through hole 7, have an end of lock buckling groove 2 can pass this through hole 7 on the snap close piece 3 and stretch out outside the housing 4 in the bottom of housing 4.The top of housing 4 has through hole 14, on snap close piece 3, have the counterbore 9 corresponding with through hole 14, can link to each other by inserted spring assembly between this counterbore 9 and the through hole 14, for example pressing spring 11, and spring 11 press bullet pin 10 to carry out all connecting to two by adjustment screw 12.And stamp out fixture block 8 (as Fig. 2, Fig. 3) on the C shape guide rail 5, when the operation personnel dropped, the lock buckling groove 2 that offers on the equipment of fall arrest fastened at C shape guide rail 5, and then realized anti-drop function.

In addition, the equipment of this fall arrest has adopted inserted spring assembly when design, on the one hand the equipment of fall arrest and spring 11 elastic force are carried out counterweight, under normal conditions, spring 11 is subjected to being compressed under the effect of equipment gravity of the fall arrest of being come by bullet pin 10 transmission, the lock buckling groove 2 of the equipment of fall arrest is contracted in the housing 4 (as Fig. 2), the equipment of operating personnel's fall arrest when upwards climbing is subjected to the pulling of safety belt and art skating, when accident takes place, at a moment of the pulling that loses safety belt, spring 11 will promote snap close piece 3 by bullet pin 10, and lock buckling groove 2 stretches out housing 4 external locks and fastens fixture block 8 (as Fig. 3), stops the tenesmus of the equipment of fall arrest; On the other hand, the inserted spring assembly of being made up of adjustment screw 12, spring 11, bullet pin 10 connects snap close piece 3, and only adopts adjustment screw, spring to be connected snap close piece 3 to compare, can make the elastic force maintenance of spring constant, can not come off again, thereby guarantee the safe effect of the equipment of fall arrest.

The above only is the specific embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1, a kind of equipment of fall arrest is characterized in that, comprising:

Housing (4), snap close piece (3), pulley (13) and snap close axle (1), wherein said snap close piece (3) can run through described housing (4) bottom, its stiff end is inserted in the described housing (4), and by described snap close axle (1) and described housing (4) flexible connection, described snap close piece (3) can be rotated in housing (4) around described snap close axle (1), in addition, described snap close piece (3) is provided with the lock buckling groove (2) that cooperates with fixture block (8) on the guide rail (5);

The top of described housing (4) has through hole (14), on described snap close piece (3), have the counterbore (9) corresponding with through hole (14), link to each other by inserted spring assembly between this counterbore (9) and the through hole (14), and stamp out fixture block 8 on the guide rail (5), described card fast (8) cooperates with lock buckling groove (2), realizes anti-fall so that lock buckling groove (2) fastens guide rail (5).

2, the equipment of fall arrest according to claim 1 is characterized in that, has through hole (7) in the bottom of described housing (4), and the end that described snap close piece (3) is provided with lock buckling groove (2) can pass this through hole (7) and stretch out outside the housing (4).

3, the equipment of fall arrest according to claim 1 is characterized in that, the movable end of described snap close piece (3) is subjected to a side of safety belt pulling to have the space of running through snap close.

4, the equipment of fall arrest according to claim 1 is characterized in that, described inserted spring assembly comprises:

Adjustment screw (12), spring (11), bullet pin (10) wherein pressing spring (11) by adjustment screw (12), and spring (11) are being pressed bullet pin (10), and counterbore (9) is linked to each other with through hole (14).

According to the equipment of each described fall arrest of claim 1-4, it is characterized in that 5, described guide rail (5) is a C type guide rail.