CN113716434A

CN113716434A - Device for preventing landing door derailing

Info

Publication number: CN113716434A
Application number: CN202111037571.9A
Authority: CN
Inventors: 陈雪锋; 郑伟; 易兆全
Original assignee: Matiz Intelligent Equipment Co ltd
Current assignee: Matiz Intelligent Equipment Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2021-11-30

Abstract

The invention discloses a device for preventing a landing door from derailing, which comprises a sill, wherein a guide rail is arranged on the sill, the guide rail is provided with a landing door capable of sliding along the guide rail to open and close, an anti-falling barb is arranged between the lower part of the landing door and the sill, the anti-falling barb comprises a bending plate, the upper end of the bending plate is fixedly arranged at the lower part of the landing door, the lower part of the sill is provided with a sliding groove, the lower part of the bending plate is in a barb shape hooked in the sliding groove, the lower end of the bending plate is provided with a sliding block inserted in the sliding groove and capable of sliding in the sliding groove, and the sliding groove is provided with an opening for the bending plate to pass through. The invention has the advantages of simple structure, high safety and capability of effectively resisting overlarge impact force without falling off the landing door.

Description

Device for preventing landing door derailing

Technical Field

The invention relates to the technical field of elevator landing doors, in particular to a device for preventing a landing door from derailing.

Background

In the existing elevator, an elevator landing door is installed on an upper sill bottom plate of the elevator through a hanging plate and a roller; when the landing door is opened or closed, the roller rolls on the guide rail of the upper sill bottom plate and slides along the guide rail on the sill. When a passenger accidentally hits the landing door, the landing door is easily separated from the sill, so that the landing door falls off, and further safety accidents are caused.

In addition, according to the regulation, the elevator landing door should have certain mechanical strength, 300N does not have permanent deformation, but in the actual use process, the user can strike the landing door with a force greater than 300N, often leads to the landing door to break away from the sill, causes various safety accidents, even falls into the well, and leads to death.

The present invention has been made based on such a situation.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the device for preventing the landing door from derailing, which has simple structure and high safety and can effectively resist overlarge impact force without the landing door falling.

The invention is realized by the following technical scheme:

the utility model provides a device for preventing layer door derail, includes the sill, be equipped with the guide rail on the sill, be equipped with on the guide rail and follow the layer door that the guide rail slided in order to open and shut, be equipped with the anticreep barb between the lower part of layer door and the sill, the anticreep barb is including the board of bending, the upper end fixed mounting of the board of bending is in the lower part of layer door, the lower part of sill is equipped with the spout, the lower part of the board of bending is for colluding the barb form in the spout, just the lower extreme of the board of bending is equipped with inserts and can be in wherein gliding slider in the spout, the spout is seted up the opening that supplies the board of bending to pass through.

A device for preventing derailment of landing doors as described above, said opening facing downwards.

The device for preventing the landing door from derailing is characterized in that the two sides of the opening are provided with inwards protruding stopping parts.

The distance m between the blocking parts on two sides of the opening is smaller than or equal to the width n of the sliding block.

According to the device for preventing the landing door from derailing, the side surface of the sliding groove is provided with the mounting hole for the sliding block to be inserted into the inner cavity of the sliding groove from the side surface.

According to the device for preventing the landing door from derailing, the upper end of the bent plate is detachably connected with the lower part of the landing door.

According to the device for preventing the landing door from derailing, the bending plate and the sliding block are integrally formed.

Compared with the prior art, the invention has the following advantages:

1. in the invention, the landing door slides along the guide rail on the sill, the lower part of the bending plate is in the shape of a barb and is hooked in the sliding groove, and the sliding block is inserted in the sliding groove and slides in the sliding groove. Like this, if layer door receives the striking, layer door lower part can be dragged the board of bending, because the barb form of the board lower part of bending colludes in the spout, in case the board of bending is dragged, this barb form will catch on the lateral wall department of spout, prevents that layer door breaks away from and drops, has guaranteed safety.

2. In the invention, if the impact force on the landing door is too large, the bending plate deforms, the sliding block can be pulled by the bending plate, the sliding block can tilt and abut against the opening, the sliding block cannot be pulled out of the sliding groove, the landing door can still be prevented from falling off, and the safety is further ensured.

3. In the present invention, the opening is downward. Namely, the bending plate needs to wind around the sill and wind below the sill, so that the lower part of the bending plate can naturally form a hook shape so as to hook the side wall of the sliding chute.

4. In the invention, two sides of the opening are provided with blocking parts protruding inwards. The blocking part is convenient for hanging the sliding block, the sliding block can be hung on the blocking part by slightly inclining, and then the sliding block is blocked by the blocking part and can not be separated from the sliding chute.

5. In the invention, the distance m between the blocking parts at two sides of the opening is less than or equal to the width n of the sliding block. Like this, the stop part can block the slider and make it can't break away from completely, and when layer door received when violent striking and pulled the board of bending, the board of bending was pulled no matter how and is also unable to pull out the slider even take place serious deformation, and layer door just also can't break away from the sill and drop, has further guaranteed that layer door safety does not drop.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the sill of the present invention;

fig. 3 is a schematic structural view of the anti-falling barb of the invention.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

The device for preventing landing door derailing as shown in fig. 1 to 3 comprises a sill 1, wherein a guide rail 11 is arranged on the sill 1, a landing door 2 capable of sliding along the guide rail 11 to open and close is arranged on the guide rail 11, an anti-falling barb 3 is arranged between the lower part of the landing door 2 and the sill 1, the anti-falling barb 3 comprises a bending plate 31, the upper end of the bending plate 31 is fixedly installed on the lower part of the landing door 2, a sliding groove 12 is arranged on the lower part of the sill 1, the lower part of the bending plate 31 is in a barb shape hooked in the sliding groove 12, a sliding block 32 inserted in the sliding groove 12 and capable of sliding in the sliding groove is arranged at the lower end of the bending plate 31, and an opening 121 for the bending plate 31 to pass through is formed in the sliding groove 12.

In the invention, the landing door 2 slides along the guide rail 11 on the sill 1, the lower part of the bending plate 31 is in a barb shape and is hooked in the sliding groove 12, and the sliding block 32 is inserted in the sliding groove 12 and slides therein. Like this, if layer door 2 receives the striking, layer door 2 lower part can be pulled the board 31 of bending, because the barb form of the board 31 lower part of bending colludes in spout 12, in case the board 31 of bending is pulled, this barb form will catch on the lateral wall department of spout 12, prevents that layer door 2 breaks away from and drops, has guaranteed safety.

And if the impact that layer door 2 received is too big, bend board 3 and take place to warp, bend board 3 and will drag slider 32, slider 32 can take place to incline and support in opening 121 department, and slider 32 just can't be pulled out spout 12, still can prevent layer door 2 to break away from and drop, has further guaranteed safety.

In addition, the anti-falling barb 3 can also ensure the fixed vertical degree of freedom of the landing door 2.

Preferably, the slider 32 is suspended in the chute 12 so as not to directly contact the chute 12, to reduce friction.

In a more specific embodiment of the present invention, the opening 121 is downward. Namely, the bending plate 31 needs to go around the sill 1 and go under the sill 1, so that the lower part of the bending plate 31 naturally forms a hook shape to hook the side wall of the chute 12.

In a more specific embodiment of the present invention, both sides of the opening 121 are provided with inwardly protruding stoppers 122. The stopping portion 122 is convenient for the sliding block 32 to hang, and the sliding block 32 can hang on the stopping portion 122 by tilting slightly, and then is stopped by the stopping portion 122 and can not be separated from the chute 12.

In a more specific embodiment of the present invention, as shown in fig. 1, the spacing m between the blocking portions 122 on both sides of the opening 121 is less than or equal to the width n of the slider 32. Like this, the stop part 122 can stop the slider 32 and make it totally unable to break away from, and when layer door 2 received the fierce striking and pulls the board 31 of bending, the board 31 of bending even take place serious deformation and also can't pull out slider 32 no matter how to pull, layer door 2 just also can't break away from sill 1 and drop, has further guaranteed that layer door 2 safety does not drop.

In a more specific embodiment of the present invention, the side surface of the sliding chute 12 is provided with a mounting opening 123 for the sliding block 32 to be inserted into the inner cavity of the sliding chute 12 from the side surface. The anti-falling barb 3 is convenient to install from the side.

In a more specific embodiment of the invention, the upper end of the bent plate 31 is detachably connected with the lower part of the landing door 2. The detachable connection is preferably made by means of bolts and nuts.

In a more specific embodiment of the present invention, the bending plate 31 and the sliding block 32 are integrally formed. Thus, the overall structural strength of the anti-drop barb 3 can be ensured. So that the sliding block 32 is not easy to be broken or separated from the bending plate 31.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A device for preventing derailment of landing door, which is characterized in that: including sill (1), be equipped with guide rail (11) on sill (1), be equipped with on guide rail (11) and slide in order to open and shut layer door (2) along guide rail (11), be equipped with anticreep barb (3) between the lower part of layer door (2) and sill (1), anticreep barb (3) are including bending board (31), bend the upper end fixed mounting of board (31) in the lower part of layer door (2), the lower part of sill (1) is equipped with spout (12), bend the lower part of board (31) for colluding the barb form in spout (12), just bend the lower extreme of board (31) and be equipped with and insert in spout (12) and can be in gliding slider (32) wherein, spout (12) are offered and are supplied opening (121) that bending board (31) pass through.

2. A device for preventing derailment of landing doors according to claim 1, wherein: the opening (121) is downward.

3. A device for preventing derailment of landing doors according to claim 1 or 2, wherein: two sides of the opening (121) are provided with blocking parts (122) protruding inwards.

4. A device for preventing derailment of landing doors according to claim 3, wherein: the distance m between the blocking parts (122) on the two sides of the opening (121) is smaller than or equal to the width n of the sliding block (32).

5. A device for preventing derailment of landing doors according to claim 1, wherein: the side surface of the sliding chute (12) is provided with a mounting opening (123) for the sliding block (32) to be inserted into the inner cavity of the sliding chute (12) from the side surface.

6. A device for preventing derailment of landing doors according to claim 1, wherein: the upper end of the bending plate (31) is detachably connected with the lower part of the landing door (2).

7. A device for preventing derailment of landing doors according to claim 1, wherein: the bending plate (31) and the sliding block (32) are integrally formed.