CN210528155U

CN210528155U - Protective device for elevator car door

Info

Publication number: CN210528155U
Application number: CN201921368503.9U
Authority: CN
Inventors: 袁盛飞
Original assignee: Shenzhen Deling Elevator Co Ltd
Current assignee: Shenzhen Deling Elevator Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-15
Anticipated expiration: 2029-08-21

Abstract

The utility model relates to a protective device for an elevator car door, which comprises a static lock hook, a dynamic lock hook and an unlocking device, wherein the top of the elevator car door is also provided with a propelling device which can lead the static lock hook to move towards or away from the unlocking device; a long hole is formed in the hook wall of the movable lock hook, one end of the long hole is communicated with one side, provided with a groove, of the movable lock hook, and a shaft of the movable lock hook is arranged on the long hole; the peripheral wall of the long hole below the shaft is provided with a long-strip-shaped gap which is communicated with the long hole; a plug pin is arranged in the long hole in a sliding mode, one end of the plug pin extends out of the groove of the movable lock hook and is not contacted with the static lock hook, the other end of the plug pin is provided with an end head with an I-shaped longitudinal section, and the shaft is lapped on the top of the end head; when one end of the plug pin extending out of the groove of the movable locking hook is pushed into the movable locking hook, the I-shaped groove at the end head moves to the notch. The utility model discloses can prevent effectively that the sedan-chair door is automatic to be opened, can open the sedan-chair door when elevator has a power failure or unlocking means trouble again, do not influence and rescue.

Description

Protective device for elevator car door

Technical Field

The utility model belongs to the technical field of elevator protective structure's technique and specifically relates to a protector of elevator sedan-chair door is related to.

Background

The automatic opening of the elevator car door is one of the potential safety hazards of the elevator, the existing elevator car door safety protection device with the authorized announcement number of CN201538631U comprises a static lock hook, a dynamic lock hook, a hook wall and a shaft on the dynamic lock hook, an unlocking device and a spring, when the car door is closed, the static lock hook and the static lock hook are engaged by virtue of extrusion force between the static lock hook and the dynamic lock hook, and at the moment, two parts of the car door are locked with each other; when the car door needs to be opened, the unlocking device is started to enable the movable locking hook to be upwards lifted, so that the movable locking hook is separated from the static locking hook, and the car door can be opened.

Above-mentioned technical scheme can prevent that the sedan-chair door from opening automatically, has improved elevator security performance, however when unlocking means breaks down, moves the latch hook and does not break away from the static latch hook, leads to stranded personnel and personnel of suing and labouring all to be difficult to open the sedan-chair door, increases the degree of difficulty for suing and labouring.

SUMMERY OF THE UTILITY MODEL

The utility model provides a protector of terraced sedan-chair door can prevent effectively that the sedan-chair door is automatic to be opened, can open the sedan-chair door when elevator has a power failure or unlocking means trouble again, does not influence and rescues.

The above object of the present invention can be achieved by the following technical solutions:

a protective device for an elevator car door comprises a static lock hook, a dynamic lock hook and an unlocking device, wherein a propelling device is further arranged at the top of the elevator car door and can enable the static lock hook to move towards or away from the unlocking device; a long hole is formed in the hook wall of the movable lock hook, one end of the long hole is communicated with one side, provided with a groove, of the movable lock hook, and a shaft of the movable lock hook is arranged on the long hole; the peripheral wall of the long hole below the shaft is provided with a long-strip-shaped gap, and the gap is communicated with the long hole; a bolt is arranged in the long hole in a sliding mode, one end of the bolt extends out of the groove of the movable locking hook and is not contacted with the static locking hook, the other end of the bolt is provided with an end head with an I-shaped longitudinal section, and the shaft is lapped on the top of the end head; when one end of the plug pin extending out of the groove of the movable locking hook is pushed into the movable locking hook, the I-shaped groove of the end head moves to the notch.

By adopting the technical scheme, based on the prior art, the car door can be prevented from being automatically opened through the meshing action of the static lock hook and the dynamic lock hook; when the elevator is powered off or the unlocking device fails, the propelling device is started to enable the static lock hook to move towards the movable lock hook unlocking device, the static lock hook can touch one end, extending out of the groove of the movable lock hook, of the bolt and can propel the end to the movable lock hook, and therefore the I-shaped groove can be moved to the notch; continue to impel the static latch hook, the static latch hook can extrude the dynamic latch hook, makes the dynamic latch hook have the trend of upward movement, continues to impel the static latch hook again, can make axle relative movement to the breach in to the axle can damage the tank bottom in I-shaped groove, makes the tank bottom fracture, thereby the dynamic latch hook can be by the extrusion of static latch hook and upward movement, at this moment the dynamic latch hook can break away from the static latch hook, can not influence opening of sedan-chair door.

Furthermore, all be equipped with the inclined plane that does benefit to the joint on static latch hook and the dynamic latch hook, just after static latch hook and the mutual joint of dynamic latch hook, form the clearance in the ditch inslot of dynamic latch hook, the one end that the bolt stretches out the dynamic latch hook slot is located in the clearance.

By adopting the technical scheme, the inclined plane is convenient for the mutual occlusion of the static lock hook and the dynamic lock hook; the existence of clearance can avoid the static latch hook under with the normal interlock of dynamic latch hook, touch the bolt.

Further, the width of the notch is smaller than the diameter of the shaft.

By adopting the technical scheme, the shaft can be prevented from relatively moving to the notch under normal use.

Further, the propulsion device is a cylinder which is fixedly arranged at the top of the car door, and the output end of the propulsion device is connected with the static lock hook; the cylinders are controlled by independent power supplies.

Through adopting above-mentioned technical scheme, the cylinder can impel the static latch hook forward or withdraw the static latch hook backward to the cylinder is not influenced by elevator power failure or unlocking means trouble.

Furthermore, the static lock hook is arranged on the top of the car door in a sliding mode.

Through adopting above-mentioned technical scheme, the quiet locking hook of being convenient for removes.

Furthermore, the bolt periphery is equipped with the snap ring, the slot hole internal perisporium be equipped with the annular of snap ring adaptation.

Through adopting above-mentioned technical scheme, under normal use, the bolt can be fixed in the card solid effect of snap ring and annular, avoids the bolt to remove.

Furthermore, the annular grooves are arranged at two positions, and the distance between the two annular grooves is equal to the length of the bolt extending out of the groove of the movable lock hook.

By adopting the technical scheme, after the plug pin pushes the movable lock hook, the clamping ring is fixed on the second annular groove, so that the positions of the notch and the I-shaped groove can be kept unchanged.

To sum up, the beneficial effects of the utility model are that: the method for destroying the movable locking hook is adopted, and the movable locking hook is destroyed to be separated from the static locking hook under the condition that the elevator is powered off or the unlocking device is in failure, so that the opening of the car door is not influenced.

Drawings

FIG. 1 is a schematic structural view (shown in cross-section) of the present invention during normal use;

fig. 2 is a schematic view (cross-sectional view) showing the use of the present invention when there is a power failure in the elevator or when the unlocking means fails.

In the figure, 1, a static lock hook; 2. a movable lock hook; 21. a long hole; 211. a ring groove; 22. a shaft; 23. a notch; 24. a bolt; 241. a tip; 242. an I-shaped groove; 243. a snap ring; 25. a trench; 3. an unlocking device; 4. a cylinder; 5. a bevel; 6. a gap.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model provides a protective device for an elevator car door, which comprises a static lock hook 1, a movable lock hook 2 and an unlocking device 3 in the background technology, wherein the top of the elevator car door is also provided with a propelling device; the propulsion device is a cylinder 4, the threads of the propulsion device are assembled at the top of the car door, the output end of the propulsion device is connected with the static lock hook 1, and the static lock hook 1 is slidably arranged at the top of the car door; the cylinder 4 is controlled by an independent power supply; the cylinder 4 can advance the static lock hook 1 forward or withdraw the static lock hook 1 backward, and the cylinder 4 is not affected by the elevator power failure or the unlocking means 3 malfunction.

With reference to fig. 1 and fig. 2, a long hole 21 is formed in a hook wall of the movable locking hook 2, and one end of the long hole 21 is communicated with one side of the movable locking hook 2 having a groove 25; a shaft 22 is fixedly arranged above the elevator car door and the elevator car door, the movable locking hook 2 rotates around the shaft 22, a hole for installing the shaft 22 is formed in the movable locking hook 2, the bottom of the hole is communicated with the long hole 21, and the cross section of the hole is in a U-arc shape; thus, the shaft 22 of the movable locking hook 2 is arranged above the long hole 21, and the bottom of the shaft 22 slightly extends into the long hole 21;

with reference to fig. 1 and 2, the peripheral wall of the movable locking hook 2 below the shaft 22 is provided with elongated notches 23, the notches 23 are communicated with the long holes 21, and two ends of the notches 23 are communicated with the holes for mounting the shaft 22; a plug pin 24 is arranged in the long hole 21 in a sliding manner, one end of the plug pin 24 extends out of a groove 25 of the movable locking hook 2 and is not contacted with the static locking hook 1, an end 241 with an I-shaped longitudinal section is arranged at the other end of the plug pin 24, and the height of the plug pin 24 is slightly smaller than that of the long hole 21; the bottom of the shaft 22 is abutted against the top of the head 241; when the end of the plug 24 extending out of the groove 25 of the movable locking hook 2 is pushed into the movable locking hook 2, the i-shaped slot 242 of the end 241 moves to the notch 23.

With reference to fig. 1 and 2, the car door can be prevented from being automatically opened by the engagement action of the static locking hook 1 and the dynamic locking hook 2; when the elevator is powered off or the unlocking device 3 is in failure, the propulsion device is started to enable the static lock hook 1 to move towards the unlocking device 3 of the dynamic lock hook 2, the static lock hook 1 can touch one end, extending out of the groove 25 of the dynamic lock hook 2, of the plug pin 24 and can propel the end to the dynamic lock hook 2, and therefore the I-shaped groove 242 can be moved to the notch 23; the static lock hook 1 is continuously pushed, the static lock hook 1 can extrude the dynamic lock hook 2, the dynamic lock hook 2 tends to move upwards, the static lock hook 1 is continuously pushed again, the shaft 22 can forcibly move to the notch 23 in a relative mode, the shaft 22 can damage the groove bottom of the I-shaped groove 242, the groove bottom is broken, the dynamic lock hook 2 can be pushed by the static lock hook 1 to move upwards, the dynamic lock hook 2 can be separated from the static lock hook 1 at the moment, and opening of the car door cannot be affected.

With reference to fig. 1 and 2, the width of the gap 23 is smaller than the diameter of the shaft 22; the outer periphery of the plug 24 is provided with a clamping ring 243, the inner peripheral wall of the long hole 21 is provided with an annular groove 211 matched with the clamping ring 243, and under normal use, the clamping ring 243 is fixed on the first annular groove 211 on the left side, so that the plug 24 can be fixed, and the plug 24 is prevented from moving; moreover, the distance between the two ring grooves 211 is equal to the length of the plug pin 24 extending out of the groove 25 of the movable locking hook 2, and after the plug pin 24 is pushed towards the movable locking hook 2, the snap ring 243 is fixed at the second ring groove 211, so that the positions of the notch 23 and the i-shaped groove 242 can be kept unchanged.

In addition, the right side of the top of the static lock hook 1 and the left side of the bottom of the dynamic lock hook 2 are both provided with an inclined surface 5 which is beneficial to clamping, and the inclined surface 5 is convenient for the mutual occlusion of the static lock hook 1 and the dynamic lock hook 2; after the static lock hook 1 and the movable lock hook 2 are mutually clamped, a gap 6 is formed in a groove 25 of the movable lock hook 2, one end, extending out of the groove 25 of the movable lock hook 2, of the plug pin 24 is arranged in the gap 6, and the existence of the gap 6 can prevent the static lock hook 1 from touching the plug pin 24 under the normal occlusion with the movable lock hook 2.

The embodiment of this embodiment is the preferred embodiment of the present invention, not limiting in proper order the utility model discloses a protection scope, the event: all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a protector of elevator sedan-chair door, includes static latch hook (1), dynamic latch hook (2), unlocking device (3), its characterized in that: the top of the elevator car door is also provided with a propelling device, and the propelling device can enable the static lock hook (1) to move towards or away from the unlocking device (3); a long hole (21) is formed in the wall of the movable locking hook (2), one end of the long hole (21) is communicated with one side, provided with a groove (25), of the movable locking hook (2), and a shaft (22) of the movable locking hook (2) is arranged on the long hole (21); the peripheral wall of the long hole (21) below the shaft (22) is provided with a long-strip-shaped gap (23), and the gap (23) is communicated with the long hole (21); a bolt (24) is arranged in the long hole (21) in a sliding mode, one end of the bolt (24) extends out of a groove (25) of the movable locking hook (2) and is not in contact with the static locking hook (1), an end head (241) with an I-shaped longitudinal section is arranged at the other end of the bolt, and the shaft (22) is lapped on the top of the end head (241); when one end of the bolt (24) extending out of the groove (25) of the movable locking hook (2) is pushed into the movable locking hook (2), the I-shaped groove (242) of the end head (241) moves to the notch (23).

2. The elevator car door protection device of claim 1, wherein: all be equipped with inclined plane (5) that do benefit to the joint on static latch hook (1) and dynamic latch hook (2), just after static latch hook (1) and dynamic latch hook (2) joint each other, form clearance (6) in slot (25) of dynamic latch hook (2), the one end that stretches out dynamic latch hook (2) slot (25) is located in clearance (6) in bolt (24).

3. The elevator car door protection device of claim 1, wherein: the width of the gap (23) is smaller than the diameter of the shaft (22).

4. The elevator car door protection device of claim 1, wherein: the propulsion device is a cylinder (4) which is fixedly arranged at the top of the car door, and the output end of the propulsion device is connected with the static lock hook (1); the cylinders (4) are controlled by an independent power supply.

5. The elevator car door protection device of claim 1, wherein: the static lock hook (1) is arranged on the top of the car door in a sliding manner.

6. The elevator car door protection device of claim 1, wherein: the periphery of the bolt (24) is provided with a clamping ring (243), and the inner peripheral wall of the long hole (21) is provided with an annular groove (211) matched with the clamping ring (243).

7. The elevator car door guard of claim 6, wherein: the two positions are arranged on the ring grooves (211), and the distance between the two ring grooves (211) is equal to the length of the bolt (24) extending out of the groove (25) of the movable lock hook (2).