CN2293623Y - Safety braking and antitheft self-locking device for up-sliding rail door - Google Patents

Abstract

The utility model relates to a safety braking and antitheft self-locking device for an up-sliding rail door, which is composed of a straight guide rail whose upper side is provided with a slotted hole and a bottom hole, and a main body device, wherein, in main body device, a crown plate which is used for transferring the traction force of a wire cable butts a connecting plate which is used for transferring elastic force of the wire cable; the other end of the connecting plate is connected with a short arm of a rocker arm; a long arm of the rocker arm utilizes a rolling wheel which is positioned in a locking shaft groove to push a locking shaft which is sheathed in a locking shaft sleeve in a sliding mode; the locking shaft, and the slotted hole and the bottom hole which are arranged in the straight rail form big clearance fit. After the wire cable is broken, traction force of the crown plate is lost not to butt the connecting plate, the spring is released, and the locking shaft is inserted into the bottom hole to carry out the self-lock when inserted into the slotted hole of the straight rail to brake or close the door. The utility model has the advantages of simple structure, and reliable operation.

Description

The safety arrestment of upper sliding rail door and antitheft self-locking device

The utility model relates to a kind of safety arrestment and the antitheft self-locking device of sliding rail door, specifically just relating to a kind of preventing ruptures suddenly because of boom hoist cable, a door body of having opened is lost constrain in the lower and hurting people or smashing objects of Action of Gravity Field lower edge straight rail pendant or prevent that closing rear robber at the door body levers up door leaf and enter indoor a kind of lockset of committing theft, be applicable to the safety of sliding rail door and antitheft.

Present upper sliding rail door particularly general industry factory building, garage Men Jun adopts the steel wire rope that twines on the motor reel to play the keying that the upper and lower operation of overhang-door body realizes door.In running, wire rope is except that being subjected to big gravity, also can there be deformation effects such as the part is squeezed, reverses, bending at leading block, break-in idle wheel and lifting member place, although fully taken into account the safety factor of wire rope in the design, but still unavoidably after long-time running, defectives such as steel rope abrasion, fracture of wire, kink, local flattening can occur, this class defective has shortened the application life of wire rope greatly, causes the major accident of hurting people or smashing objects simultaneously when wire rope ruptures suddenly; Because the motor reel is to flexibly connect by wire rope with the door body, cause the adhesive tape position of still available crowbar insertion Men Tiyu ground sealing place after door is closed, lever up door leaf and steal.

For addressing the above problem, it is a kind of simple in structure that the utility model provides, the safety arrestment of the last sliding rail door of reliable operation and theftproof self-locking device.

Task of the present utility model is achieved in that

Identical but the symmetrically arranged device of component locations in addition of two structures is installed at the left and right inferior horn place of door body, the body of this device is connected the Kong Chengda matched in clearance on the straight rail of its locking axle and both sides, door opening hole by bolt and the lower left corner and a lower right corner of the indoor side of body respectively.The utility model by be fixed on the both sides, hole, its straight guide and agent set that is provided with two slotted holes forms, agent set is reached the hoisting frame side plate that is connected with it and has slotted hole by body, steel wire clamping plate is arranged to and can be slided in its slotted hole, the top board that is connected on the clamping plate moves junction plate, rocking arm to compress and discharge the spring that is arranged on the locking axle, constitute thereby axle head is withdrawed from and insert in the slotted hole of straight rail, the outer setting of this device has protective cover.It is that the locking axle withdraws from straight rail slotted hole that this device is opened by the tractive force of wire rope transfers by motor, discharges locking by spring, and namely the locking axle inserts in the straight rail slotted hole, plays safety arrestment and theftproof self-locking.

Fig. 1 is the mechanism kinematic figure behind the utility model designs simplification, and double dot dash line shows a body lower left corner part among the figure; Fig. 2 is the structure sectional view after the utility model removes straight guide and protective cover.

In conjunction with the accompanying drawings structure of the present utility model and embodiment are described as follows:

The utility model is by being fixed on hole both sides, its straight guide P and agent set that is provided with braking slotted hole P1 and antitheft bottom outlet P2 is formed, agent set is connected by wire rope one end and electric motor driven reel, one end and steel wire clamping plate 13 are connected, the step periphery on the slide block pressing plate 2 that is connected mutually with it by shelves nails and the slotted hole of hoisting frame side plate 1 are sliding fit, the axle 18 junction plate left ends that are sliding fit that top board 27 and the centre bore that is connected on the pressing plate is fixed on the body 5 overlap mutually, body is connected with the door body, the slotted hole of junction plate 11 right-hand members slides on the minor axis 21 that is connected with rocking arm 22 1 ends; the rocking arm centre bore 23 is sliding fit with the axle that is fixed on the body; the length of rocking arm; the galianconism center line is mutually 90 °; its length ratio is 2: 1; locking axle 6 slides in the centre bore of the back plate washer 17 that passes locking axle sleeve 9 that locking bracing strut 10 and body be connected and be connected with body 5; stage clip 14 two ends on the axle 6 are separately fixed on the spring socket sleeve 26 and back plate washer 17 that is connected with the locking axle; locking axle right-hand member is provided with elongated slot vertically; the long arm end of rocking arm 22 is pegged graft with it; right-hand member sliding sleeve one roller shaft 16 of axle 6; axle upper sliding sleeve one roller 15, is abutted against with the long arm end of rocking arm; Be fixed on the straight guide P on the both walls of indoor hole to be provided with in distant and be at least a braking slotted hole P and the place, perigee is provided with self-locking bottom outlet P2, latch shaft 6 ends are arranged to be big matched in clearance with the slotted hole and the bottom outlet of straight guide, in the track of straight rail, the device outer setting has the protective cover of dustproof usefulness to constitute to sliding sleeve in 7 insertings of the roller on the locking axle.

The course of work of the present utility model is as follows:

Machine operation drives the door body by wire rope and moves upward, driving steel wire clamping plate 13 simultaneously upwards slides in the slotted hole of hoisting frame side plate 1, top board 27 on it is with the left end jack-up of junction plate 11, the right-hand member of junction plate is swung clockwise around axle 18, thereby the galianconism of drive rocking arm and long-armed around rocker arm shaft 23 counter-clockwise swings, swinging distance be clamping plate 13 upslips from 2 times, long-armed lower end promotes roller 15 to the right, driving locking axle 6 by roller shaft 16 moves to right along locking axle sleeve 9, through spring socket sleeve 26 compression press springs 14, the locking axle is withdrawed from the bottom outlet of guide rail P, wire rope is carried on continuing, the slide block pressing plate no longer slides because of arriving hoisting frame side plate slotted hole extreme position, and under the effect of rope hoisting power, door-plate rises, spring remains on compression position, after door-plate arrival predetermined altitude stops, because of the gravity of door-plate on the straight rail, the horizontal component of door-plate gravity passes through junction plate on the traverse rod; balance each other with the potential energy that spring is stored in rocker arm body conversion back, the locking axle remains static.

When door-plate is descending, along with the door leaf quantity that enters straight rail increases, rope hoisting tractive force increases, be in the extreme position of hoisting frame side plate 1 slotted hole because of clamping plate 13, top board 27 is top junction plate left end no longer, behind the door body kiss the earth, motor is rotated further, wire rope then is relaxed state, this moment, spring was released, its right-hand member withstands on the back plate washer 17 that is connected with Men Tixiang, spring force makes locking axle 6 eject along locking axle sleeve 9 left and inserts in the high straight rail self-locking bottom outlet of ground 30mm, realizes theftproof self-locking, and the roller shaft 16 of right-hand member afterbody drives roller 15 and moves to left, promote rocking arm 22 and swing clockwise, the wire rope that relaxes is tightened thereby the left end of junction plate 11 is depressed drive steel wire clamping plate 13 to move down around axle 23.

When wire rope ruptures suddenly, the tractive force of clamping plate 13 disappears, spring is released, the locking axle ejects to withstand on to slide on the straight rail to the straight rail braking slotted hole position more than the 2M of distance ground along axle sleeve and inserts the realization safety arrestment, door promptly is parked in the 2m eminence, invar silk fracture of rope can not take place and the incident of hurting people or smashing objects.

In order to guarantee reliable operation of the present utility model, when design stage clip 14, the difference of decrement is not less than 16mm when decrement during by peak load and minimum load, determine that spring has related parameter to be not less than 16mm with the length that realizes locking axle ejection locking axle sleeve, the distance that withdraws from the straight rail of distance behind the straight rail is not less than 5mm, when inserting straight rail, the length in straight rail is not less than the working range of 11mm.

The utility model has the advantages that: 1, rational in infrastructure, small and exquisite, flexible, peripheral hardware dust cover, worker Do reliably to have realized the function of safety arrestment and theftproof self-locking; 2, the connecting plate 11 that transmits elastic force with Transmit between the top board 27 of rope traction power and be not fixed together, thereby when making spring work Resistance reduces; 3, the work tractive force because of the locking axle provides by door body weight power fully, even have a power failure Use under the state, also can guarantee safety.

Claims (4)

1; A kind of safety arrestment of upper sliding rail door and antitheft self-locking device; It is characterized in that; This device forms by being fixed on the straight guide (P) and the agent set that are provided with braking slotted hole (P1) and antitheft bottom outlet (P2) on its of both sides, hole; Agent set is connected by the other end and the steel wire clamping plate (13) of the steel wire rope that an end and motor-driven reel are connected; Step periphery on the slide block pressing plate (2) that shelves nail and steel wire clamping plate (13) are connected and the slotted hole of hoisting frame side plate (1) are sliding fit; The top board that is connected on the pressing plate (27) and centre bore are fixed on connecting plate (11) left end that axle (18) on the body (5) is sliding fit and overlap mutually; Body is connected with the door body; The slotted hole of connecting plate right-hand member slides on the minor axis (21) that is connected with rocking arm (22) one ends; The rocking arm centre bore is sliding fit with the axle (23) that is fixed on the body; The length of rocking arm; The galianconism center line is mutually 90 °; Locking axle (6) slides in the centre bore of the rear plate washer (17) that passes locking axle sleeve (9) that locking bracing strut (10) and body (5) be connected and be connected with body; Stage clip on the locking axle (14) two ends are separately fixed on the spring socket sleeve (26) and rear plate washer (17) that is connected with the locking axle; Locking axle right-hand member is provided with elongated slot vertically; The long arm end of rocking arm (22) is pegged graft with it; Right-hand member sliding sleeve one roller shaft (16) of axle (6); Axle upper sliding sleeve one roller (15) is abutted against with the long arm end of rocking arm; Be fixed on the straight guide (P) on the both walls of indoor hole, setting in distant is at least a braking slotted hole (P1) and the perigee is provided with a self-locking bottom outlet (P2), one end of locking axle (6) is arranged to be big matched in clearance with the slotted hole and the bottom outlet of straight guide, in the track of straight rail, the device outer setting has the protective cover of dustproof usefulness to constitute to sliding sleeve in the roller on the locking axle (7) inserting.

2, by the described device of claim 1, it is characterized in that the length ratio of the long and short arm of rocking arm (22) is 2: 1.

By claim 1 or 2 described devices, it is characterized in that 3, it is more than the 2M apart from ground level that straight guide (P) is gone up braking slotted hole position, self-locking bottom outlet position is 30mm apart from ground level.

4, by the described device of claim 3, it is characterized in that, each parameter of stage clip (14) during by peak load and during minimum load the difference of decrement be no less than 16mm and calculate; The working range of locking axle (6) is not less than 5mm for the straight rail of the time distance of withdrawing from straight rail, and the length when inserting straight rail in straight rail is not less than 11mm.

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