CN103058038B - Lever-type elevator car door mechanical lock - Google Patents

Abstract

The invention discloses a lever-type elevator car door mechanical lock. The lever-type elevator car door mechanical lock comprises a sliding lock hook component (1), a rotating lock hook component (7), a sliding plate (4), a bottom plate (12) and a collision bow (11), the collision bow (11) is fixed on an upper threshold frame of each layer of hoistway door to be stationary, the sliding lock hook component (1) is provided with the bottom plate (12) fixed on a car door rail or an upper threshold plate, an electrical movable contact (2), a first guide column (5), a second guide column (10), the sliding plate (4) and a stop column (9), and the rotating lock hook component (7) is provided with an electrical fixed contact (3), a lock wheel (6) and a rotating shaft (8). Under the actions of left-right sliding of the sliding plate, translation and rotation of the rotating lock hook component and the like, the stop, limiting and electrical contact devices are attached, and finally locking and unlocking are completed. The lever-type elevator car door mechanical lock is free of exogenic action of springs and the like and capable of directly proving depth of engagement, and accordingly safety of a mechanical door lock is improved greatly. By the aid of the advantages, the lever-type elevator car door mechanical lock is widely applied to car door mechanical locks of various elevators.

Description

Lever type elevator car door mechanical lock

technical field

The invention belongs to the field of elevators, in particular to an elevator door system, in particular to a lever type elevator car door mechanical lock.

Background technique

The elevator car door lock mechanism is the most basic safety item of the elevator. Its purpose is to prevent the elevator door from being opened under the action of external force to ensure the safety of the passengers. At present, the design of the mechanical lock of the elevator car door mainly includes the following types: 1. The linkage type of the hall door lock wheel and the door knife. This structural principle requires the door knife and the car door lock to be adjusted at the same time and interact with each other. When the depth of the car is greater than 5mm, there are many faults and cannot meet the requirements of the deep car. 2. Spring driven type. Usually, the lock body slider is driven by a compressed spring, and the lock hook is released by the interaction between the striker bow and the lock wheel on the hall door device. This structural principle will cause the door to fail to open when the spring fails or the guide device is poorly lubricated. Fault. 3. Indirect proof type. The electrical contacts are installed on the slider, and the indirect method is used to prove the position of the lock hook, which cannot prove the engagement depth of the lock hook and the engaging part, and cannot meet the requirements of the standard.

The above-mentioned three methods have their own deficiencies, and have more or less hidden dangers to the safety of elevator operation. In the era of increasing elevator safety, they seem to be increasingly outdated.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention proposes a lever-type elevator car door mechanical lock, which not only can solve the defects of the prior art, but also has many other beneficial effects.

The lever-type elevator car door mechanical lock includes a sliding lock hook assembly 1, a rotating lock hook assembly 7, a sliding plate 4, a bottom plate 12, and a striker bow 11. The striker bow 11 is fixed on the upper sill of each hall door and remains stationary. The sliding hook assembly 1 is provided with an electro-pneumatic contact 2; the rotating latch assembly 7 is provided with an electrical static contact 3, a lock wheel 6, and a rotating shaft 8; the bottom plate 12 is fixed on the car door guide rail or the upper sill, and the bottom plate 12 The upper fixing device has a first guide column 5 and a second guide column 10. The slide plate 4 slides left and right through the support movement guidance of the first guide column 5 and the second guide column 10. The slide plate 4 is fixed with a stop post 9; The locking hook assembly 7 is connected with the slide plate 4 through the rotating shaft 8, and the rotation angle of the rotating locking hook assembly 7 is limited by the stop column 9; Contact 2 is on.

On the basis of the above, the present invention can be improved as follows: the sliding hook assembly 1 has a lower locking hook 13 protruding vertically upward, the lower locking hook 13 has an inclined end surface 130, and the rotating locking hook assembly 7 has a vertically downward The protruding upper locking hook 72, the upper locking hook 72 has an inclined end surface 720, and the two inclined end surfaces are matched. After the lower locking hook 13 and the upper locking hook 72 are engaged for more than 7mm, the electrostatic contact 3 and the electrodynamic contact 2 connected, the inclined end surface 130 is in contact with the inclined end surface 720 .

The first guide post 5 and the second guide post 10 protrude and are perpendicular to the bottom plate 12 , and the cross sections of the two are circular, square or rectangular. The slide plate 4 is provided with a first notch 41 and a second notch 42 , and the slide plate 4 is movably nested on the bottom plate 12 by matching the first guide post 5 and the second guide post 10 through the first notch 41 and the second notch 42 respectively.

The stop post 9 protrudes and is perpendicular to the bottom plate 12. The cross section of the stop post 9 is circular, square, or rectangular. Compatible with the stop post 9, the area of the stop hole 71 is slightly larger than the cross-sectional area of the stop post 9.

The patented elevator car door mechanical lock device of the present invention, in the leveling area of the car, the door lock device is opened by the movement of the car door and the door knife installed on the landing door, and the door lock does not collide with the door knife when the car is running In the non-leveling area, the door lock device cannot be opened because there is no door knife. The lock hook is equipped with an electro-pneumatic contact. The movement of the sliding lock hook and the rotation of the rotating lock hook will make the contact act. The electrical contacts are closed only when the latch is fully closed and the locking hook is in the locked position. When the car door is closed in place, due to the action of the sliding lock hook, the rotating lock hook is forced to return to the engaged state. The invention does not rely on other external forces such as springs, and directly proves the engagement depth of the two lock hooks according to the electrical contacts installed on the two lock hooks, thereby greatly improving the safety of the mechanical door lock.

Due to the above beneficial effects, the present invention is widely used in various elevator car door mechanical locks.

Description of drawings

Fig. 1 is a schematic diagram of the state structure of the present invention (this figure shows the state where the lower lock hook 13 and the upper lock hook 72 are engaged);

Fig. 2 is a schematic view of the state structure of the present invention (this figure shows the state when the lower lock hook 13 and the upper lock hook 72 are in contact);

Fig. 3 is a schematic diagram of the state structure of the present invention (this figure shows that the sliding lock hook assembly 1 moves to the left, and the lock wheel 6 is in contact with the striker bow 11

state at the time);

Fig. 4 is a schematic diagram of the state structure of the present invention (this figure shows that the sliding lock hook assembly 1 moves to the left, the striker bow 11 blocks the lock wheel 6, the rotating lock hook assembly 7 rotates, and the upper lock hook 72 is released);

Fig. 5 is a schematic diagram of the state structure of the present invention (this figure shows the state when the lower lock hook 13 and the upper lock hook 72 are in contact with each other during the closing process of the car door);

Fig. 6 is a schematic diagram of the state structure of the present invention (this figure shows the state when the rotating lock hook assembly 7 is forced to rotate under the action of the inclined end surface 130 and the inclined end surface 720);

Figure 7 is a schematic diagram of the state structure of the present invention (this figure shows the state when the lower lock hook 13 and the upper lock hook 72 are engaged during the door closing process, and the car door has not been fully closed);

Fig. 8 is a side view structural schematic diagram of the present invention;

Fig. 9 is a front view structural schematic diagram of the skateboard 4 of the present invention;

Fig. 10 is a schematic side view of the rotary lock hook assembly 7 of the present invention;

Fig. 11 is a front structural schematic diagram of the rotary lock hook assembly 7 of the present invention;

Fig. 12 is a schematic side view of the sliding hook assembly 1 of the present invention;

Fig. 13 is a schematic front view of the sliding hook assembly 1 of the present invention;

FIG. 14 is a schematic side view of the bottom plate 12 of the present invention;

FIG. 15 is a front structural schematic view of the bottom plate 12 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and in the form of embodiments.

As shown in Figures 1-4, the lever-type elevator car door mechanical lock includes a sliding lock hook assembly 1, a rotating lock hook assembly 7, a sliding plate 4, a bottom plate 12, and a striker bow 11, which is fixed on each hall door Standing still on the sill, the sliding hook assembly 1 is provided with an electro-pneumatic contact 2;

The components of Fig. 1-Fig. 4 are all the same, but the working states are different, and the unlocking process of the present invention is explained in turn. As shown in Figure 1, when the car door is fully closed, the horizontal gap between the sliding hook assembly 1 and the rotating locking hook assembly 7 is 15mm. Disconnect with the electrical static contact 3; as shown in Figure 2, after moving 15mm, contact with the rotating lock hook assembly 7; as shown in Figure 3, the sliding lock hook assembly 1 continues to move to the left to drive the rotating lock hook assembly 7, the slide plate 4. Move to the left until the lock wheel 6 is in contact with the striker bow 11; Being forced to rotate around the rotating shaft 8 causes the rotating lock hook assembly 7 to disengage from the sliding lock hook assembly 1, and the unlocking process ends.

As shown in Figures 5-7, the lever-type elevator car door mechanical lock includes a sliding lock hook assembly 1, a rotating lock hook assembly 7, a sliding plate 4, a bottom plate 12, and a striker bow 11, and the striker bow 11 is fixed on the hall door of each floor Standing still on the sill, the sliding hook assembly 1 is provided with an electro-pneumatic contact 2;

The components in Fig. 5-Fig. 7 are all the same, but the working states are different. In combination with Fig. 1, they illustrate the locking hook engagement process of the present invention. As shown in Figure 5, when the car door is closed, the sliding lock hook assembly 1 moves to the right with the door hanging plate until it first contacts the rotating lock hook assembly 7; as shown in Figure 6, when the sliding lock hook assembly 1 continues to move to the right , due to the action of the inclined end face, the rotating lock hook assembly 7 rotates; as shown in Figure 7, the sliding lock hook assembly 1 continues to move to the right, at this time the two lock hooks are already in the engaged state, but the electrical contacts have not yet been connected, and the car door Continue to close; as shown in Figure 1, the sliding lock hook assembly 1 continues to move to the right until it contacts the rotating lock hook assembly 7 again, and the electrical contact is connected.

As shown in Figure 8, the bottom plate 12 is fixed on the car door guide rail or the upper sill with bolts, and two guide posts 5, 10 are fixed on the bottom plate 12 for guiding the slide plate 4, and the stop post 9 is fixed on the slide plate. The rotary lock hook assembly 7 is connected with the slide plate through the rotating shaft 8, and the electric static contact 3 is fixed on the rotary lock hook assembly 7, and the stop post 9 limits the rotation angle of the rotary lock hook assembly 7. Hit the bow 11 and be fixed on the upper sill of every floor hall door and stand still. When the car door is closed in place, the sliding lock hook assembly 1 and the rotating lock hook assembly 7 are engaged by ≥ 7mm, and the electric static contact 3 and the electropneumatic contact 2 are connected.

As shown in Fig. 9, a first notch 41 and a second notch 42 are provided on the slide plate 4, and the slide plate 4 is matched with the first guide post 5 and the second guide post 10 through the first notch 41 and the second notch 42 respectively so as to be movably embedded. Covered on the base plate 12; the slide plate 4 is also provided with a stop post 9, and the stop post 9 is matched with the stop hole 71 (see Figure 11 for the stop hole 71), thereby limiting the rotation angle of the rotary lock hook assembly 7 .

As shown in Fig. 10-11, it is a schematic structural diagram of the rotary lock assembly 7 of the present invention. Fig. 10 is a schematic structural view of a side view, and Fig. 11 is a schematic structural view of a front view. As shown in Figure 11, the rotating lock hook assembly 7 is provided with an electrical static contact 3, a lock wheel 6, a rotating shaft 8, and a stop hole 71, which corresponds to the stop post 9 of the slide plate 4, and their two The matching is as described above, and will not be repeated here. On the rotating lock hook assembly 7, there is also an upper lock hook 71 protruding vertically downwards. The upper lock hook 71 has an inclined end surface 710. The upper lock hook 71 is matched with the lower lock hook 13 in FIG. 13 . The inclined end surface 710 matches the inclined end surface 130 in FIG. 13 to complete the process steps of locking and unlocking. In FIG. 10 , the structure of the rotating shaft 8 is mainly shown. Through the rotating shaft 8, the rotating lock hook assembly 7 is axially connected with the slide plate 4. Finally, driven by the translational movement of the sliding plate 4 and its own rotational movement, To complete the process steps of locking and unlocking.

As shown in Fig. 12-13, it is a schematic structural view of the sliding hook assembly 1 of the present invention. Fig. 12 is a schematic diagram of a side view, and Fig. 13 is a schematic diagram of a front view. As shown in Figure 13, this figure mainly shows the electro-pneumatic contact 2, the lower lock hook 13, and the inclined end surface 130 in the sliding lock hook assembly 1, as for the first guide column 5, the second guide column 10, the slide plate 4, the stopper Structural devices such as the post 9 have been mentioned before, so they are not shown in this figure. The functions of the lower locking hook 13 and the inclined end surface 130 have been discussed in FIGS. 10-11 and will not be repeated here.

As shown in FIGS. 14-15 , they are structural schematic diagrams of the bottom plate 12 . Fig. 14 is a schematic structural view of a side view, and Fig. 15 is a schematic structural view of a front view. In fact, the bottom plate 12 is a component of the sliding lock hook assembly 1. It is through the bottom plate 12 that the sliding lock hook assembly 1 can be fixed on the car door guide rail or the upper sill. An embodiment in the figure is fixed by bolts. On the bottom plate, there are also a first guide post 5 and a second guide post 10 , which protrude and are perpendicular to the bottom plate 12 (see FIG. 14 ). As an example, the cross-sections of the two are circular. They are respectively matched with the first notch 41 and the second notch 42 provided on the slide plate 4, so that the slide plate 4 is movably nested on the bottom plate 12, and then the first guide post 5, the second guide post 10, the slide plate 4, the stop The position column 9 , the bottom plate 12 , including the aforementioned electro-pneumatic contact 2 , the lower locking hook 13 , the inclined end surface 130 and the like together constitute the sliding locking hook assembly 1 .

Claims (7)

1. Lever type elevator car door mechanical lock, comprising sliding shackle assembly (1), rotating shackle assembly (7), slide plate (4), bottom plate (12), striker bow (11), said striker bow (11) It is fixed on the upper sill of the hall door on each floor and remains motionless. It is characterized in that: the sliding lock hook assembly (1) is fixed on the car door hanging plate or car door panel, and is provided with an electro-pneumatic contact (2); the rotating lock hook assembly (7) is provided with an electro-static contact ( 3), lock wheel (6), rotating shaft (8); The bottom plate (12) is fixed on the car door guide rail or the upper sill, the first guide column (5) and the second guide column (10) are fixed on the bottom plate (12), and the slide plate (4) passes through the The first guide post (5) and the second guide post (10) are supported and guided to slide left and right, and the slide plate (4) is fixed with a stop post (9); The rotary lock hook assembly (7) is connected with the slide plate (4) through the rotating shaft (8), and the rotation angle of the rotary lock hook assembly (7) is limited by the stop post (9); The sliding locking hook assembly (1) has a lower locking hook (13) protruding vertically upward, and the rotating locking hook assembly (7) has an upper locking hook (72) protruding vertically downward; The lower lock hook (13) has a lower lock hook inclined end surface (130), the upper lock hook (72) has an upper lock hook inclined end surface (720), and the lower lock hook inclined end surface (130) and the upper lock hook The inclined end face (720) is compatible; After the lower lock hook (13) and the upper lock hook (72) are engaged for more than 7 mm, the electrostatic contact (3) and the electrodynamic contact (2) are connected, and the inclined end surface of the lower lock hook (130) is in contact with the locking oblique end face (720); During the closing process of the car door, the sliding hook assembly (1) acts on the rotating locking hook assembly (7) with the horizontal force of the car door and the car door hanging plate to force the sliding locking hook assembly (1) and the rotating locking hook assembly to (7) To engage without resorting to spring force or gravity. 2. The lever-type elevator car door mechanical lock according to claim 1, characterized in that: the first guide column (5) protrudes and is perpendicular to the bottom plate (12), and the first guide column (5) ) is circular, square or rectangular in cross-section. 3. The lever-type elevator car door mechanical lock according to claim 1, characterized in that: the second guide column (10) protrudes and is perpendicular to the bottom plate (12), and the second guide column (10) ) is circular, square or rectangular in cross-section. 4. The lever type elevator car door mechanical lock according to claim 1, characterized in that: said slide plate (4) is provided with a first notch (41) and a second notch (42), said slide plate (4) The first notch (41) and the second notch (42) are respectively matched with the first guide post (5) and the second guide post (10) so as to be movably nested on the bottom plate (12). 5. The lever-type elevator car door mechanical lock according to claim 1, characterized in that: the stop post (9) protrudes and is perpendicular to the bottom plate (12), and the stop post (9) The cross section is round, square or rectangular. 6. The lever-type elevator car door mechanical lock according to claim 1, characterized in that: a stop hole (71) is opened on the rotary lock hook assembly (7), and the stop hole (71) and the stop hole The stop post (9) is compatible, and the area of the stop hole (71) is slightly larger than the cross-sectional area of the stop post (9). 7. The lever-type elevator car door mechanical lock according to claim 1, characterized in that: the lock wheel (6) is driven by the rotation of the rotary lock hook assembly (7) to engage with the striker bow (11) or separate.