CN212425042U - Elevator door locking hook - Google Patents

Abstract

The application discloses an elevator door locking hook, which comprises a first door plate, a second door plate, a hook body, a locking member, a magnet and a magnetic member, wherein the locking member comprises a mounting frame, a containing frame, a locking block and a spring; the spring is arranged in the sliding hole and forces the locking block to be in contact with the first door plate; the hook body comprises a hanging part, a connecting part and a fixing part arranged on the second door panel, and the fixing part is connected with the hanging part through the connecting part; when the hanging part is hung on the locking block, the first door panel can be limited to be separated from the second door panel; the magnet is arranged in the locking block, and the magnetic part is arranged on the lift car; when the car is aligned with the first door plate, the magnetic part forces the locking block to be separated from the hanging part, and the first door plate and the second door plate are opened. The device has the advantages of simple structure, compact layout, convenient installation, low cost, good stability and convenient control.

Description

Elevator door locking hook

Technical Field

The application relates to the field of elevator safety equipment, in particular to an elevator door locking hook.

Background

The elevator is used as a tool for transporting personnel and goods, and is widely applied to high-rise buildings and industrial plants. The reliability of the elevator plays a crucial role in guaranteeing the safety of life and property. At present, most elevators have very high reliability, and a redundant system and mechanical and electrical interlocking are designed to prevent accidents. However, accidents in elevators are also frequent due to overload, bad working environment, inadequate maintenance, human mishandling and other factors. In case of an accident, the result is very serious, and the elevator usually causes great casualties and property loss.

The elevator door locking hook is safety protection equipment arranged on the elevator door, and has the functions of preventing the elevator door from being opened by mistake, avoiding the falling accident and ensuring the life safety of passengers.

However, the existing elevator door locking hook mainly has the following defects: 1. the structure is too complex, the cost is high, and the installation difficulty is high; 2. most adopt electric drive, it is high to the requirement of control, stability is relatively poor, and in case break down, the degree of difficulty of detection and maintenance is big.

Therefore, how to improve the existing elevator door locking hook to overcome the above-mentioned disadvantages is a problem to be solved by those skilled in the art.

Disclosure of Invention

An object of this application lies in a simple structure, simple to operate, with low costs, stability is good, and the lift-cabin door locking couple of being convenient for control.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: an elevator door locking hook comprises an elevator door body, a hook body, a locking part, a magnet and a magnetic part, wherein the elevator door body comprises a first door plate and a second door plate;

the locking piece comprises an installation frame, a containing frame, a locking block and a spring, the installation frame is arranged on the first door plate, the containing frame is arranged on the installation frame, a first interval is arranged between the containing frame and the first door plate, and a sliding hole is formed in the surface, facing the first door plate, of the containing frame; the locking block is arranged in the sliding hole in a sliding mode, the spring is arranged in the sliding hole and forces the locking block to slide towards the direction close to the first door plate until the locking block is in contact with the first door plate;

the hook body comprises a hanging part, a connecting part and a fixing part, the fixing part is arranged on the second door panel, and the fixing part is connected with the hanging part through the connecting part; after the first door panel and the second door panel are folded, the hanging part is hung on the locking block, so that the first door panel and the second door panel are limited to be separated from each other;

magnet set up in the inside of latch segment, magnetic force spare sets up on the car, and works as the car with when first door plant aligns, magnetic force spare is right magnet produces magnetic force, forces the latch segment to keeping away from the direction of first door plant slides, until the latch segment with the separation of hitching part, first door plant and the second door plant can normally open.

Preferably, a first inclined plane is arranged at one end, close to the first door plate, of the locking block, and a second inclined plane is arranged at one end, far away from the fixing part, of the hanging part; when the first door panel and the second door panel are mutually closed, the second inclined surface acts on the first inclined surface to force the locking block to slide towards the direction far away from the first door panel, and after the hanging part passes over the locking block, the spring forces the locking block to slide towards the direction close to the first door panel, and the hanging part can be hung on the locking block again. The advantages are that: when the magnetic member fails or is damaged, if the first inclined surface and the second inclined surface are not arranged, the first door panel and the second door panel cannot be normally closed, and potential safety hazards exist; under the action of the first inclined plane and the second inclined plane, the hanging part can be hung on the locking block again, so that the first door panel and the second door panel are limited to be separated from each other, and further the well falling accident is avoided.

Preferably, an accommodating groove is formed in one end, far away from the first door plate, of the locking block, and one end, close to the locking block, of the spring is accommodated in the accommodating groove. The advantages are that: when the latch segment slides towards keeping away from first door plant direction to compress during the spring, the spring can hold in the holding tank, can reduce the volume of holding frame, thereby reduce holistic volume, make holistic overall arrangement compacter, reasonable.

Preferably, a limiting block is arranged at one end, far away from the first door plate, of the locking block, a limiting groove is formed in the inner wall of the sliding hole, and the limiting block is arranged in the limiting groove; one end of the limiting groove, which is far away from the sliding hole, penetrates through the containing frame, and a sealing cover is arranged at the outer end of the limiting groove. The advantages are that: the locking block and the sliding hole can be prevented from falling off through the limiting fit between the limiting groove and the limiting block. In addition, keep away from on the spacing groove the one end of slide opening runs through the accommodation frame, the outer end of spacing groove is equipped with sealed lid, when opening sealed lid, can right the latch segment and the spring is installed, closes during the sealed lid, can seal the spacing groove, avoids foreign matter such as dust to get into in the spacing groove.

Preferably, a pressure detection device is arranged between the sealing cover and the spring. The advantages are that: can pass through pressure detection device detects the resilience force of spring, work as the resilience force of spring weakens the back, in time changes, ensures the resilience force of spring is normal, thereby guarantees the latch segment with the stability of articulating between the portion of articulate.

Preferably, an accommodating hole is formed in the end face, close to the locking block, of the sealing cover, the accommodating hole is used for accommodating the pressure detection device, and the depth of the accommodating hole is larger than the height of the pressure detection device. The advantages are that: the accommodating hole can be used for accommodating and limiting the spring while limiting and fixing the pressure detection device, and the stability of the contact between the spring and the pressure detection device is ensured.

Preferably, the first door plate is internally provided with an electromagnet, and after the electromagnet is electrified, the locking block can be forced to slide towards the direction far away from the first door plate until the locking block is separated from the hanging part. The advantages are that: when detecting, maintaining and maintaining, can give the electro-magnet circular telegram can normally open first door plant and second door plant.

Preferably, a second interval is arranged between the hanging part and the second door panel and between the connecting part and the second door panel. The advantages are that: in the closing process of the first door panel and the second door panel, due to shaking or assembly errors, the second door panel and the first door panel are possibly not aligned, and certain errors are allowed to exist between the second door panel and the first door panel under the action of the second interval, so that the hanging part and the connecting part are ensured to be within an allowed error range, and the first door panel cannot be touched by mistake. Otherwise, once the hanging part and the connecting part are in contact with the first door panel, the hanging part and the connecting part are abraded slightly, and the normal closing of the first door panel and the second door panel is influenced heavily.

Preferably, a third interval is arranged between the hanging part and the accommodating frame and between the connecting part and the accommodating frame. The advantages are that: in the closing process of the first door panel and the second door panel, due to shaking or assembly errors, the hanging part and the connecting part are easy to touch the accommodating frame; under the effect of the third interval, the hanging part and the connecting part can not be mistakenly touched with the containing frame within a certain error range, so that the hanging part, the connecting part and the containing frame are prevented from being abraded, and the first door panel and the second door panel can be normally closed.

Preferably, the height of the hanging part is larger than that of the locking block. The advantages are that: in the closing process of the first door plate and the second door plate, due to shaking or assembly errors, the hanging part and the locking block are possibly staggered, so that the hanging stability between the hanging part and the locking block is greatly reduced; when the height of the hanging part is larger than that of the locking block, the range of the hanging part which can be contacted with the locking block is greatly increased, and therefore the hanging stability between the hanging part and the locking block is greatly increased.

Compared with the prior art, the beneficial effect of this application lies in:

(1) because the magnet is arranged inside the locking block and the magnetic part is arranged on the car, the locking block can not generate larger action because the car has certain speed and the time interval of the alignment of the magnetic part and the magnet is shorter in the lifting process of the car; only when the car stops at a corresponding floor and the car is aligned with the first door plate, the magnetic part generates continuous magnetic action on the magnet, so that the locking block is forced to slide in the direction away from the first door plate, and the first door plate and the second door plate can be normally opened after the locking block is separated from the hanging part; after passengers get on or off the elevator, the first door panel and the second door panel are closed again, once the elevator car leaves the floor, the acting force of the magnetic piece on the magnet disappears, the locking block is hooked with the hanging part again under the action of the elastic force of the spring, so that the first door panel and the second door panel are prevented from being separated from each other, the shaft falling accident caused by the mistaken opening of the elevator door is avoided, and the use safety of the elevator is improved;

(2) the locking block is arranged in the sliding hole in a sliding mode, and the spring forces the locking block to slide towards the direction close to the first door plate, so that one end, far away from the sealing cover, of the locking block can be always in contact with the first door plate;

(3) if the magnetic piece is a permanent magnet, electric drive is not needed in the whole process, and the magnetic piece is not needed to be controlled; if magnetic force spare is when the circular telegram can produce magnetic force effect, then only need be in the whole process during car stop motion, give magnetic force spare circular telegram makes it right magnet produces magnetic force, and the control degree of difficulty is low, moreover after the long-time stop motion of car, can initiatively close electric current on the magnetic force spare to practice thrift the energy consumption, reduce cost.

Drawings

Fig. 1 is a perspective view of an elevator door locking hook;

FIG. 2 is an exploded perspective view of the retaining member;

FIG. 3 is a rear view of the elevator door locking hook in a locked state;

FIG. 4 is a state diagram of the first door panel and the second door panel after being opened;

FIG. 5 is a state view of the first door panel and the second door panel before closing;

fig. 6 is a state diagram of the first door panel and the second door panel after being closed.

In the figure: 1. an elevator door body; 11. a first door panel; 12. a second door panel; 2. a hook body; 21. a hanging part; 211. a second inclined plane; 22. a connecting portion; 23. a fixed part; 3. a locking member; 31. a mounting frame; 32. a housing shelf; 321. a slide hole; 322. a limiting groove; 33. a locking block; 331. a first inclined plane; 332 accommodating grooves; 333. a limiting block; 34. a spring; 4. a magnet; 5. a sealing cover; 51. an accommodation hole; 6 pressure detection device.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1-6, an elevator door locking hook includes an elevator door body 1, a hook body 2, a locking member 3, a magnet 4, and a magnetic member (the magnetic member is not shown in the drawings), the elevator door body 1 includes a first door panel 11 and a second door panel 12, and in the prior art, a split structure is provided between the first door panel 11 and the second door panel 12. The locking member 3 comprises an installation frame 31, a containing frame 32, a locking block 33 and a spring, the installation frame 31 is fixed on the first door panel 11 through screws, the containing frame 32 is arranged on the installation frame 31, a first interval is arranged between the containing frame 32 and the first door panel 11, and a sliding hole 321 is arranged on the surface of the containing frame 32 facing the first door panel 11; the locking block 33 is slidably disposed in the sliding hole 321, and the spring is disposed in the sliding hole 321, and forces the locking block 33 to slide toward the first door panel 11 until an end of the locking block 33 away from the sealing cover 5 contacts the first door panel 11. The hook body 2 comprises a hanging part 21, a connecting part 22 and a fixing part 23, the fixing part 23 is fixed on the second door panel 12 through screws, and the fixing part 23 is connected with the hanging part 21 through the connecting part 22; and when the first door panel 11 and the second door panel 12 are folded, the hanging part 21 is hung on the locking block 33, so that the first door panel 11 and the second door panel 12 are limited to be separated from each other. Magnet 4 sets up in the inside of latch segment 33, and the magnetic part sets up on the car and on the position corresponding with magnet 4, and when the car aligns with first door plant 11, the magnetic part produces magnetic force to magnet 4, forces latch segment 33 to slide to the direction of keeping away from first door plant 11, and until latch segment 33 and hookup portion 21 separation, first door plant 11 and second door plant 12 can normally open. The magnetic member can be a permanent magnet or an electromagnet. When the magnetic force piece is the permanent magnet, only need fix the permanent magnet installation on the car with the corresponding position of magnet 4, after the car aligns with first door plant 11, the permanent magnet can produce the effort to magnet 4, its simple structure, simple to operate, and whole in-process need not electric drive, also need not to control. When the magnetic force piece is the electro-magnet, then the whole in-process only need when the car stop motion, for magnetic force piece circular telegram, make it produce magnetic force to magnet 4, the control degree of difficulty is low, moreover after the long-time stop motion of car, can initiatively close the electric current on the magnetic force piece to practice thrift the energy consumption, reduce cost. In addition, during the lifting process of the car, since the car has a certain speed, the time interval of the alignment of the magnetic member and the magnet 4 is relatively short, even if the magnetic force is generated, the locking block 33 does not generate a large motion under the elastic force of the spring, thereby ensuring the stability of the hanging between the hanging part 21 and the locking block 33. Only when the car stops at the corresponding floor and the car is aligned with the first door panel 11, the magnetic member will generate a continuous magnetic force on the magnet 4, so as to force the locking block 33 to slide in a direction away from the first door panel 11, and the first door panel 11 and the second door panel 12 can be normally opened after the locking block 33 is separated from the hanging part 21. After passengers get on or off the elevator, the first door panel 11 and the second door panel 12 are closed again, once the elevator car leaves the floor, the acting force of the magnetic force piece on the magnet 4 disappears, the locking block 33 is hooked with the hanging part 21 again under the action of the resilience force of the spring, so that the first door panel 11 and the second door panel 12 are prevented from being separated from each other, the shaft falling accident caused by the mistaken opening of the elevator door is avoided, and the use safety of the elevator is improved;

in order to avoid that the first door panel 11 and the second door panel 12 cannot be normally closed after the magnetic member fails; a first inclined surface 331 is arranged at one end of the locking block 33 close to the first door panel 11, and a second inclined surface 211 is arranged at one end of the hanging part 21 far away from the fixing part 23; when the first door panel 11 and the second door panel 12 are close to each other, the second inclined surface 211 acts on the first inclined surface 331 to force the locking block 33 to slide in a direction away from the first door panel 11 (as shown in fig. 5), until the hanging portion 21 passes over the locking block 33, the spring forces the locking block 33 to slide in a direction close to the first door panel 11, and the hanging portion 21 is re-hung on the locking block 33 (as shown in fig. 6). If the first inclined plane 331 and the second inclined plane 211 are not provided, after the magnetic member fails or is damaged, the hanging part 21 will abut against the locking block 33 before the first door panel 11 and the second door panel 12 are closed, so that the first door panel 11 and the second door panel 12 are mutually closed, and there is a potential safety hazard. Under the action of the first inclined surface 331 and the second inclined surface 211, even if the magnetic force of the magnetic member disappears, the hanging part 21 can be hung on the locking block 33 again, so that the first door panel 11 and the second door panel 12 are limited to be separated from each other, and further, the falling accident is avoided, and the maintenance of a professional is waited.

In order to reduce the volume of the accommodating frame 32, an accommodating groove 332 is formed in one end, far away from the first door panel 11, of the locking block 33, and one end, close to the locking block 33, of the spring is accommodated in the accommodating groove 332; when the locking block 33 slides away from the first door 11 and compresses the spring, the spring is accommodated in the accommodating groove 332 (as shown in fig. 5), so as to reduce the volume of the accommodating frame 32, thereby reducing the overall volume of the locking member 3 and further making the overall layout of the locking member 3 more compact and reasonable.

As shown in fig. 2, in order to prevent the locking block 33 from falling off from the sliding hole 321, a limiting block 333 is disposed at one end of the locking block 33 away from the first door panel 11, a limiting groove 322 is disposed on an inner wall of the sliding hole 321, and the limiting block 333 is disposed in the limiting groove 322; the locking block 33 can be prevented from falling off from the sliding hole 321 by the limit fit between the limit groove 322 and the limit block 333. One end of the limiting groove 322 far away from the sliding hole 321 penetrates through the containing frame 32, and the outer end of the limiting groove 322 is provided with a sealing cover 5; when the sealing cover 5 is opened, the locking block 33 and the spring can be assembled in the limiting groove 322; when the sealing cover 5 is closed, the limiting groove 322 can be sealed, and foreign matters such as dust are prevented from entering the limiting groove 322.

As shown in fig. 4, in order to facilitate the resilience force to the spring to carry out real-time detection, can set up pressure detection device 6 between sealed lid 5 and spring, pressure detection device 6's itself is prior art, punches through sealed lid 5 or holding frame 32 to can lay wire, the inside of the first door plant 11 of introduction is again followed to the pencil, and last again through flexible pencil and the interior bus bundle of elevator well link to each other, can normally get the electricity and carry out the transmission of signal. After the resilience force that detects the spring through pressure measurement device 6 weakens, in time indicate, remind to maintain as early as possible and change, ensure that the resilience force of spring is normal to guarantee to articulate the stability between latch segment 33 and the portion 21 of articulate. In order to better limit and fix the pressure detection device 6, the end face, close to the locking block 33, of the sealing cover 5 is provided with the accommodating hole 51, the accommodating hole 51 is used for accommodating the pressure detection device 6, and under the action of spring force, the pressure detection device 6 does not need to be fixed through screws, so that the installation steps are simplified, and the installation difficulty is reduced. In addition, the depth of the accommodating hole 51 is greater than the height of the pressure detection device 6, and the accommodating hole 51 can perform the functions of accommodating and limiting the end part of the spring while limiting and fixing the pressure detection device 6, so that the stability of the contact between the spring and the pressure detection device 6 is ensured.

In order to facilitate detection, maintenance and repair, an electromagnet (not shown in the drawings) is arranged inside the first door panel 11, and after the electromagnet is electrified, the locking block 33 can be forced to slide in a direction away from the first door panel 11 until the locking block 33 is separated from the hanging part 21. When detection, maintenance and repair are carried out, the electromagnet is electrified by a professional, the locking block 33 is forced to slide in the direction away from the first door panel 11 until the locking block 33 is separated from the hanging part 21, and the first door panel 11 and the second door panel 12 can be normally opened.

As shown in fig. 5, a second space is provided between the second door panel 12 and the hanging portions 21 and 22. The first door panel 11 and the second door panel 12 are not necessarily aligned with each other due to a shaking or an assembly error during the closing process of the first door panel 11 and the second door panel 12. Under the action of the second interval, a certain error between the second door panel 12 and the first door panel 11 is allowed, so that the hanging part 21 and the connecting part 22 are ensured to be within an allowed error range and not to mistakenly touch the first door panel 11. Otherwise, once the hanging portion 21 and the connecting portion 22 contact the first door panel 11, the hanging portion 21 and the connecting portion 22 may be slightly worn, and the normal closing of the first door panel 11 and the second door panel 12 may be affected, or even the first door panel 11, the second door panel 12, the hanging portion 21 and the connecting portion 22 may be damaged. In addition, a third interval is arranged between the hanging part 21 and the accommodating frame 32 as well as between the connecting part 22 and the accommodating frame 32; during the closing process of the first door panel 11 and the second door panel 12, the hanging part 21 and the connecting part 22 are easy to touch the accommodating frame 32 due to shaking or assembly error; under the effect of the third interval, the hanging part 21 and the connecting part 22 are allowed to not touch the accommodating frame 32 by mistake within a certain error range, so that abrasion or damage to the hanging part 21, the connecting part 22 and the accommodating frame 32 is avoided, and the first door panel 11 and the second door panel 12 can be normally closed.

As shown in fig. 3, the height of the hooking portion 21 is greater than the height of the locking block 33. In the closing process of the first door panel 11 and the second door panel 12, due to shaking or assembly errors, the hanging part 21 may be misaligned with the locking block 33, so that the hanging stability between the hanging part 21 and the locking block 33 and the interaction stability between the second inclined surface 211 and the first inclined surface 331 are greatly reduced; when the height of the hanging part 21 is greater than that of the locking block 33, the range of the hanging part 21 contacting with the locking block 33 and the size of the second inclined plane 211 are greatly increased, so that the hanging stability between the hanging part 21 and the locking block 33 and the interaction stability between the second inclined plane 211 and the first inclined plane 331 are greatly increased.

It should be noted that the structure of the connecting portion 22 cannot cause interference between the hanging portion 21 and the locking block 33, and therefore, the connecting portion 22 is preferably two rod-shaped structures, and is disposed between the hanging portion 21 and the fixing portion 23 in an up-and-down overlapping manner (as shown in fig. 1 and 3). In addition, since the two mounting brackets 31 are not configured to interfere with the hanging portion 21 and the connecting portion 22, the two mounting brackets 31 are respectively disposed at the upper and lower ends of the accommodating frame 32 (as shown in fig. 1 and 3), so that interference with the movement of the hanging portion 21 and the connecting portion 22 can be avoided.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (10)

1. An elevator door locking hook comprises an elevator door body, a hook body, a locking part, a magnet and a magnetic part, wherein the elevator door body comprises a first door plate and a second door plate; the method is characterized in that:

the locking piece comprises an installation frame, a containing frame, a locking block and a spring, the installation frame is arranged on the first door plate, the containing frame is arranged on the installation frame, a first interval is arranged between the containing frame and the first door plate, and a sliding hole is formed in the surface, facing the first door plate, of the containing frame; the locking block is arranged in the sliding hole in a sliding mode, the spring is arranged in the sliding hole and forces the locking block to slide towards the direction close to the first door plate until the locking block is in contact with the first door plate;

the hook body comprises a hanging part, a connecting part and a fixing part, the fixing part is arranged on the second door panel, and the fixing part is connected with the hanging part through the connecting part; after the first door panel and the second door panel are folded, the hanging part is hung on the locking block, so that the first door panel and the second door panel are limited to be separated from each other;

magnet set up in the inside of latch segment, magnetic force spare sets up on the car, and works as the car with when first door plant aligns, magnetic force spare is right magnet produces magnetic force, forces the latch segment to keeping away from the direction of first door plant slides, until the latch segment with the separation of hitching part, first door plant and the second door plant can normally open.

2. The locking hook for elevator door as claimed in claim 1, wherein the locking block has a first inclined surface at one end near the first door plate, and a second inclined surface at one end far from the fixing portion of the hook; when the first door panel and the second door panel are mutually closed, the second inclined surface acts on the first inclined surface to force the locking block to slide towards the direction far away from the first door panel, and after the hanging part passes over the locking block, the spring forces the locking block to slide towards the direction close to the first door panel, and the hanging part can be hung on the locking block again.

3. The elevator door locking hook of claim 1, wherein an end of said locking block remote from said first door panel is provided with a receiving groove, and an end of said spring adjacent to said locking block is received in said receiving groove.

4. The locking hook for elevator doors as claimed in claim 1, wherein the locking block has a limiting block at one end away from the first door plate, the inner wall of the sliding hole has a limiting groove, and the limiting block is disposed in the limiting groove; one end of the limiting groove, which is far away from the sliding hole, penetrates through the containing frame, and a sealing cover is arranged at the outer end of the limiting groove.

5. The elevator door locking hook according to claim 4, wherein a pressure detecting means is provided between the sealing cover and the spring.

6. The locking hook for elevator door according to claim 5, wherein the sealing cover has a receiving hole formed on an end surface thereof adjacent to the locking piece, the receiving hole is used for receiving the pressure detecting means, and the receiving hole has a depth greater than a height of the pressure detecting means.

7. The locking hook for elevator door as claimed in claim 1, wherein the first door panel is provided with an electromagnet inside, and when the electromagnet is powered on, the locking block is forced to slide in a direction away from the first door panel until the locking block is separated from the hanging part.

8. The elevator door locking hook of claim 1, wherein a second space is provided between the hooking portion and the connecting portion and the second door panel.

9. The elevator door locking hook of claim 1, wherein a third space is provided between the hooking portion and the connecting portion and the receiving shelf.

10. The elevator door locking hook of claim 1, wherein the height of said hooking portion is greater than the height of said locking block.

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