CN2320602Y - Elevator door locking device - Google Patents

Abstract

The utility model relates to a locking device which is composed of a locking body, a safety lock body and a fixing lock hook, wherein the locking body and the safe lock body are connected with a synchronous belt clamp of an elevator, the fixing lock hook is connected with a hanging plate of an elevator car, a linkage positioning body is arranged on the locking body, the linkage positioning body can be matched with a synchronous belt clamp axle body in a sliding manner contact friction and by the match of an elastic structure, the linkage positioning body is provided with a locking salient which can be matched with a slotted hole on the synchronous belt clamp axle body, a hook head of the fixing lock hook is provided with a pressure pushing structure which can cause the locking salient of the linkage positioning body to quit the slotted hole, and the safety lock body is sheathed on the synchronous belt clamp axle body, is provided with a lock pin which overhangs under the action of the elastic structure and is matched with a locking slotted hole on the fixing lock hook. A push match structure is arranged between the lock pin and the synchronous belt clamp axle body. The push match structure can be pushed by the synchronous belt clamp axle body and part from the match with the locking slotted hole on the fixing lock hook.

Description

The elevator door locking device that matches with the synchronous strap clamp of elevator

The utility model relates to a kind of elevator door locking device that matches with the synchronous band of elevator.

For guaranteeing the peace gold operation of elevator, the reliability and stability of elevator door locking device is an important step.Present elevator door locking device is general, and what adopt is the structure of the two coupler body forms that can fasten mutually.In servicely utilize its convex gib head separately to fasten mutually and break away from locking and unlatching after fasten realizing elevator door cuts out.Its shortcoming is, for improving its pass fastening degree of reliability behind the door, the control effort of its mutual snap close of ambassador Ying Jia, but the result has also increased the resistance when the switch door fastens cooperation simultaneously, even latch hook can take place at closing time fail to overcome the situation that this resistance is fastened, elevator door is not barred up, caused bigger insecurity on the contrary; Make the control effort of snap fit if reduce to make it, though can make the switch of door comparatively light easily, but the fastening on the inboard inclined-plane of this two gib head this moment is again safe inadequately, in case of than big bang or other reason, two gib heads that fastened pinning are thrown off automatically, cause elevator door in the time should not opening, to be opened automatically, cause the accident.On the other hand, thisly colluding the structure of the form of closing mutually with two coupler bodies, also be difficult to accurate cooperation, still have loosening gap after elevator door cuts out, is one of factor that causes elevator operation noise.

The purpose of this utility model is at above-mentioned situation, provides a kind of elevator door switch that can make flexible, and makes its closed condition more reliable, and can eliminate the compound latch hook that becomes flexible the gap and reduce to move the elevator door of noise again.

Elevator door locking device of the present utility model, by the lock body and the safe lock body that are connected in the synchronous strap clamp of elevator place, and the fixedly latch hook that is connected on the lift car door strap constitutes jointly.Wherein, lock body is placed on the synchronous strap clamp axis body, be provided with the interlock positioning unit that under elastic construction cooperates, can make the moving contact frictional fit with synchronous strap clamp axis body at itself and pin gib head portion contacted position, and be provided with a lock tab structure that can match with the location notch hole on the said synchronous strap clamp axis body at its said this cliding friction matching part place.The position that this pin is hooked in nearly lock body has the pushing structure that the lock tab structure that can make this interlock positioning unit withdraws from the cooperation slotted eye, and the position that adapts with it on the interlock positioning unit then has the pushing fit structure.The pushing structure that this cooperatively interacts can adopt energy phase coadaptation and all be a protruding concave structure of continuous rounding off, is beneficial to it and cooperates and break away from cooperation with being moved into of synchronous strap clamp.

Said safe lock body is placed on the synchronous strap clamp axis body in the structure.It is provided with one in latch members protractile under the effect of elastic construction and that match with locking slotted eye on being arranged at fixing latch hook, between this latch members and said synchronous strap clamp axis body, being provided with can be by behind the pushing tow of this synchronous strap clamp axis body motion, the pushing tow fit structure that goes out of lock and cooperate with locking slotted eye on the said fixedly latch hook.This pushing tow fit structure is to adopt energy coadapted pushing tow inclined-plane and to cooperate the form on inclined-plane the simplest.

For further reducing the mutual bump of elevator door when closing, on said lock body,, can be provided with the buffer body of band buffering elastic construction with the fixing contacted position, end of latch hook.If what adopt between said fixedly latch hook and interlock positioning unit is the coadapted protruding matrix pushing fit structure of above-mentioned energy, then can adopt to move to mutually at its pushing fit structure that to make the elastic construction of interlock in the positioning unit be in maximum flexibility active state position right, fixedly the end of latch hook begins and is arranged at the contacted form of this buffer body on the lock body.This buffer body that has an elastic construction in buffering and eliminate clash into mutually when elevator door cuts out in, the pre-storage elastic force of this buffering elastic construction also can increase the tripping force of the action of opening the door, particularly when adopting male-female pushing fit structure between fixing latch hook and interlock positioning unit, help making it to break away from because of residing mated condition at closing time.

Below foregoing of the present utility model is described further with example shown in the drawings.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.

Fig. 1: the structure of the utility model elevator door locking device

As shown in the figure, this elevator door locking device is by the lock body 2 and the safe lock body 7 that are connected in the synchronous strap clamp of elevator 1 place, and the fixedly latch hook 11 that is connected on the lift car door strap constitutes jointly, wherein:

Lock body 2 is placed on the synchronous strap clamp axis body 20, being provided with one at itself and the fixing contacted position of latch hook 11 heads is being closed in by cover plate 18 under wherein spring 16 cooperates, can make the interlock positioning unit 14 of moving contact frictional fit with synchronous strap clamp axis body 20, and be provided with a locking projections structure 19 that can match with the location notch hole 6 on this synchronous strap clamp axis body 20 at its this cliding friction matching part place.Should be fixedly latch hook 11 have the locking projections structure 19 that can make this interlock positioning unit 14 at position and withdraw from the slick and sly inner concave shape that cooperates with location notch hole 6 and push structure 15 near lock body 2, the corresponding site place on the positioning unit 14 that links has the slick and sly male type that can adapt with it to push fit structure 17.Regulate body 5 in slow that the recoil spring 4 of bolt 3 matches with band can being provided with one on the lock body 2 with the fixing contacted position, end of latch hook 11.And make on fixing latch hook 11 and the interlock positioning unit 14 coadapted protruding matrix pushing fit structure move to the elastic construction 16 that makes in the interlock positioning unit 14 mutually when being in maximum flexibility active state position, fixedly the end of latch hook 11 begins and this buffer body 5 is set contacts.Regulate the adjusting of bolt 3 by this, can adjust, make it to have bigger comformability the buffering range of this slow middle body 5.

Said safe lock body 7 is placed on the synchronous strap clamp axis body 20.It is provided with one under by the effect of regulating spiral shell footpath 8 springs that assembled 9 protractile and lock pin 12 that match with locking slotted eye 13 on being arranged at fixing latch hook 11.But the pushing tow inclined-plane 21 that an ejection lock pin 12 is arranged on this synchronous strap clamp axis body 20, the one cooperation inclined-plane 22 that can adapt is with it arranged on the lock pin 12, thus can make this lock pin 12 can by the pushing tow of strap clamp axis body 20 motions synchronously do with said fixedly latch hook on locking slotted eye 13 motion that goes out of lock and cooperate.Also be provided with the touch-pressure switch structure 10 that is used to control the elevator drive power supply on this safe lock body 7.

Shown in the drawings is that this elevator locking device is in elevator door by the timer-operated state of spring lock.Its entire work process is: at closing time, the synchronous strap clamp 1 of driven by motor moves from left to right, the locking projections structure 19 of interlock positioning unit 14 is in the lock fit state that the location notch hole 6 that inserts on the synchronous strap clamp axis body 20 forms rigidity, has eliminated the shake chatter phenomena in the elevator door motion.When moving to after elevator door cuts out mutually, strap clamp 1 continues to move right suitable distance under the drive of motor synchronously, and drive lock body 2 moves to right, interlock positioning unit 14 beginnings on it contact with fixedly latch hook 11 heads on being connected in link plate, and by the male-female type pushing fit structure of 14 of fixing latch hook 11 and interlock positioning uniies interlock positioning unit 14 is urged, its locking projections structure 19 promptly with synchronous strap clamp axis body 20 on location notch hole 6 break away from and cooperate.Simultaneously, this fixedly also contacts with buffer body 5 on the lock body 2 end of latch hook 11.Along with synchronous strap clamp axis body 20 continue move to right, after lock pin 12 in the safe lock body 7 on it enters locking slotted eye 13 on the fixing latch hook 11, under the effect of spring 9, promptly firmly locked, do not have when adding power of enforcement and can not be opened, thereby guaranteed the reliability of lock-out state of closing the door, and eliminated the gap that may produce noise.When opening the door, synchronously strap clamp under driven by motor to left movement, the cooperation inclined-plane 22 of lock pin 12 rises the latter in the pushing tow inclined-plane 21 pushing tow safety lock bodies 7 on its axis body 20, break away from lock fit state with locking slotted eye 13, synchronously strap clamp axis body 20 can continue to move right, and enters its location notch hole 6 in the locking projections structure 19 that makes interlock positioning unit 14 and be positioned after the locking, drives lock body 2 and moves right, latch hook 11 is also broken away from interlock positioning unit 14 cooperate, finish the action of opening the door.

When elevator operation runs into unforeseen circumstances, under the artificial effect of forcing external force, also can make this lock pin 12 in the safe lock body 7 break away from mated condition with locking slotted eye 13 on the fixing latch hook 11, elevator door can be opened by force, unlikelyly cause danger.

Claims (6)

1. elevator door locking device that matches with the synchronous strap clamp of elevator, it is characterized in that by being connected in lock body (2) and the safe lock body (7) that the synchronous strap clamp of elevator (1) is located, and be connected in that fixedly latch hook (11) on the lift car door strap is common to be constituted, wherein:

Lock body (2) is placed on the synchronous strap clamp axis body (20), be provided with one at itself and the fixing contacted position of latch hook (11) head and cooperate the interlock positioning unit (14) of making the moving contact frictional fit down with synchronous strap clamp axis body (20) at elastic construction (16), and be provided with a lock tab structure (19) that can match at its said this cliding friction matching part place with the location notch hole (6) on the said synchronous strap clamp axis body (20), fixedly latch hook (11) has the lock tab structure (19) that can make this interlock positioning unit (14) to withdraw from the pushing structure (15) of location notch hole (6) at the position of nearly lock body (2), and the position that adapts with it on the interlock positioning unit (14) has pushing fit structure (17);

Safe lock body (7) is placed on the synchronous strap clamp axis body (20), its be provided with one under elastic construction (9) effect protractile and latch members (12) that match with locking slotted eye (13) on being arranged at fixing latch hook (11), being provided with between this latch members (12) and said synchronous strap clamp axis body (20) can be by behind the pushing tow of this synchronous strap clamp axis body (20) motion, the pushing tow fit structure that goes out of lock and cooperate with locking slotted eye (13) on the fixing latch hook.

2. elevator door locking device as claimed in claim 1, it is characterized in that said lock body (2) go up can with the fixing contacted position, end of latch hook (11), be provided with the buffer body (5) that has buffering elastic construction (4).

3. elevator door locking device as claimed in claim 1 or 2, it is characterized in that the pushing structure (15) of said fixedly latch hook (11) to interlock positioning unit (14), and interlock positioning unit (14) goes up pushing fit structure with matching (17), but for the phase coadaptation and all be the male-female type structure of continuous rounding off.

4. elevator door locking device as claimed in claim 3, it is characterized in that going up coadapted male-female type pushing fit structure at said fixedly latch hook (11) and interlock positioning unit (14), when the elastic construction (16) of relative motion in making interlock positioning unit (14) is in the position of maximum flexibility active state, make the end of fixing latch hook (11) begin to contact with buffer body (5) on being arranged at lock body (2).

5. elevator door locking device as claimed in claim 1 or 2 is characterized in that pushing tow fit structure between the latch members (12) on said synchronous strap clamp axle, body (20) and the safe lock body (7) is for can coadapted pushing tow inclined-plane (21) and cooperate inclined-plane (22).

6. elevator door locking device as claimed in claim 1 or 2 is characterized in that said safe lock body (7) is provided with the touch-pressure switch structure (10) of control elevator drive power supply.

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