CN108821079B

CN108821079B - Contact type landing door protection device

Info

Publication number: CN108821079B
Application number: CN201810748736.5A
Authority: CN
Inventors: 彭琤; 钱国华; 周勇
Original assignee: Aote Rambo Elevator Co ltd
Current assignee: Aote Rambo Elevator Co ltd
Priority date: 2018-07-10
Filing date: 2018-07-10
Publication date: 2020-07-10
Anticipated expiration: 2038-07-10
Also published as: CN108821079A

Abstract

The invention provides a contact landing door protection device, which relates to the technical field of elevator safety, and comprises a protection part, a car part and a landing door part, wherein the protection part comprises an induction part connected with the car part and a contact block connected with the landing door part, the induction part is connected with the contact block through a push rod, at least one part of the push rod is positioned in a fixed block, the contact block is provided with a first bent part in clamping fit with the fixed block and a second bent part in clamping fit with the landing door part, and a landing door extending part is arranged at the second bent part. The contact type landing door protection device is simple in overall structure, can effectively protect landing doors, can perform multiple protection on the running position of an elevator, is accurate in induction and high in safety performance, and can effectively prevent the landing doors from accidentally falling into a hoistway.

Description

Contact type landing door protection device

Technical Field

The invention relates to the technical field of elevator safety,

in particular, the present invention relates to a contact landing door protection device.

Background

Elevators have become an indispensable vehicle in people's lives today. With the advancement of technology and the increasing demand of people, buildings are built higher and higher, and elevators are used more and more widely.

At present, most of elevator landing doors in China are provided with a manual opening mechanism, and when an elevator car is not on the elevator landing door, a maintainer can open the landing door by using a special triangular key for opening the elevator, so that the elevator can be checked or maintained in time when the elevator breaks down. However, when the landing door is opened, the landing door of the elevator is opened at one time, and at the moment, the car door of the elevator is not on the landing, so that great potential safety hazards exist, and accidents are likely to happen if a inspector does not notice that the elevator does not go inside the landing. Secondly be exactly that some are not aware of the passenger when taking the elevator, when the car door has not arrived this layer, the layer door just opens in advance, if the passenger also can cause the accident because crowded or attention is not concentrated and walk to the elevator inside, therefore this kind of door lock structure of once only manually opening who uses at present has very big potential safety hazard.

Disclosure of Invention

The invention aims to provide a contact type landing door protection device which has a simple integral structure, can effectively protect a landing door, can carry out multiple protection on the running position of an elevator, has accurate induction and high safety performance, and can effectively prevent the situation of accidental falling into a hoistway

In order to solve the problems, the invention is realized by adopting the following technical scheme:

the utility model provides a contact layer door protection device, includes protection portion, car portion and layer door portion, the protection portion include with the response piece that car portion is connected and with the contact piece that layer door portion is connected, the response piece pass through the catch bar with contact piece is connected, the catch bar has at least partly to be located the fixed block, contact be provided with on the piece with fixed block joint complex first kink and with layer door portion joint complex second kink, second kink department is provided with layer door and stretches into the portion.

Preferably, the sensing member comprises a fixed rod and a movable rod which are connected through a rotating shaft, and the movable rod is connected with the pushing rod.

Further preferably, the number of the rotating shaft, the fixed rod and the movable rod is two.

Further preferably, an angle formed between the extending direction of the movable rod and the vertical direction is in a range of 10 ° to 30 °.

Further preferably, the induction part further comprises a driving block connected with the movable rod, a control line connected with the landing door part, and a first spring used for connecting the driving block and the control line, and the end of the control line is connected with a control switch.

Further preferably, at least a portion of the driving block is arc-shaped.

Further preferably, one side of the car part close to the protection part is provided with a functional bend, and an included angle formed between the extending direction of the functional bend and the vertical direction is in a range of 10 degrees to 30 degrees.

Further preferably, at least a portion of the landing door protruding part is arc-shaped.

Further preferably, the contact block is connected with the fixed block through a tension line, the protection part is provided with a guide wheel for guiding the tension line, and the tension line is connected with a second spring.

Further preferably, the number of the tension wire, the guide wheel and the second spring is two.

The contact type landing door protection device has the beneficial effects that: overall structure is simple, can effectively protect the layer door, can carry out multiple protection to elevator operation position, and the response is accurate, and the security performance is high, can effectively prevent the emergence of the unexpected well condition of falling into.

Drawings

FIG. 1 is a schematic top view of an embodiment of the present invention;

FIG. 2 is a schematic side view of an embodiment of the present invention;

in the figure: 1. the protection part, 11, the response piece, 111, the axis of rotation, 112, the dead lever, 113, the movable rod, 114, the drive block, 115, the control line, 116, first spring, 117, control switch, 12, the contact piece, 121, first kink, 122, the second kink, 123, the layer door portion of stretching into, 13, catch bar, 14, the fixed block, 15, the tensile line, 16, the guide pulley, 17, the second spring, 2, car portion, 21, function bending, 3, the layer door portion.

Detailed Description

The invention is further described below with reference to the accompanying drawings and examples.

The first embodiment is as follows: as shown in fig. 1 and 2, which are only one embodiment of the present invention, a contact landing door protection device includes a protection portion 1, a car portion 2, and a landing door portion 3, where the protection portion 1 includes a sensing part 11 connected to the car portion 2 and a contact block 12 connected to the landing door portion 3, the sensing part 11 is connected to the contact block 12 through a push rod 13, at least a portion of the push rod 13 is located in a fixed block 14, the contact block 12 is provided with a first bent portion 121 snap-fitted to the fixed block 14 and a second bent portion 122 snap-fitted to the landing door portion 3, and the second bent portion 122 is provided with a landing door extending portion 123.

Firstly, the landing door extension part 123 ensures that the contact block 12 and the landing door part 3 are in contact connection, and ensures that the forces of the contact block and the landing door part can be mutually transmitted.

Then, the first bending part 121 on the contact block 12 is in clamping fit with the fixing block 14, so that the contact block 12 is locked by the fixing block 14 and cannot move towards two sides at ordinary times, and the landing door of the landing door part 3 is also locked, so that the landing door is prevented from being opened by mistake, and people fall into a hoistway to be in an accident.

Then, the action of the sensing part 11, the sensing part 11 can sense whether the elevator car has moved to the landing door or not, or whether the condition of forcibly opening the landing door is reached, once the landing door can be opened, the sensing part 11 drives the pushing rod 13 to push the contact block 12 to move towards the landing door, then the clamping between the first bending part 121 and the fixing block 14 is released, and then the landing door is in an openable state.

Last is the control when layer door is opened, because contact block 12 has produced the displacement to layer door direction, layer door stretches into the portion 123 so and can stretch into to layer door more in, in order to guarantee layer door and contact block 12's connection normal, here guarantee layer door stretches into portion 123 and has at least partly be the arc, and layer door stretches into the connection of portion 123 and layer door so and more smoothly and stably, and is provided with second kink 122 and the cooperation of layer 3 joints of door portion on the contact block 12, so layer door portion 3 can drive contact block 12 and displace together, guarantees that both are in contact connected state constantly.

The contact block 12 is connected with the fixed block 14 through a tension line 15, a guide wheel 16 for guiding the tension line 15 is arranged on the protection part 1, a second spring 17 is connected on the tension line 16, and when the landing door part 3 is opened, the force of the second spring 17 can continuously pull the contact block 12 to move along with the landing door. The number of the tension wire 15, the guide wheel 16 and the second spring 17 is two, and the structure that the whole protection part 1 is symmetrically arranged is safer.

Certainly, the second kink 122 of contact piece 12 not only plays the connection effect with layer door portion 3, and when layer door was closed, the transmission of power between contact piece 12 and layer door portion 3 was guaranteed in addition, and when layer door was closed, can drive contact piece 12 to the closed direction displacement of layer door, and when layer door was closed completely, because the arc structure of layer door income portion 123 for contact piece 12 got back to in the joint groove of fixed block 14.

The contact type landing door protection device is simple in overall structure, can effectively protect the landing door, can protect the running position of the elevator, is accurate in induction and high in safety performance, and can effectively prevent the landing door from accidentally falling into a hoistway.

Example two: as shown in fig. 1 and 2, which are only one embodiment of the present invention, a contact type landing door protection device, in order to ensure that the stability of the present invention is further improved, the sensing member 11 includes a fixed rod 112 and a movable rod 113 connected through a rotating shaft 111, and the movable rod 113 is connected to the pushing rod 13. The range of the included angle formed between the extending direction of the movable rod 113 and the vertical direction is 10 ° to 30 °, that is, the movable rod 113 forms a certain included angle with the vertical direction, under the condition of a certain force, the movable rod 113 displaces towards the landing door, the process of pushing the contact block 12 by the pushing rod 13 is completed, and the landing door is in an openable state.

Because the condition of opening of layer door has multiple condition, firstly the elevator moves and opens the layer door to layer door department, secondly open the layer door when the elevator needs to get into the well operation unusually, these two kinds of condition have different protection designs:

if the elevator runs to the landing door and needs to open the landing door, the car part 2 can extrude the movable rod 113 when running, the movable rod 113 moves towards the landing door, the process that the contact block 12 is pushed by the pushing rod 13 is completed, and the landing door is in an openable state.

Under this condition, the quantity of axis of rotation 111, dead lever 112 and movable rod 113 is two, and two sets of be longitudinal symmetry, no matter car portion 2 from last down extrusion or from down up extrusion movable rod 113, all can not produce the dead or collision phenomenon of card, and extrusion process is mild safety, and the sensitivity of response is high, and is safe more stable.

Moreover, in order to ensure the safety and the rationality of the extrusion of the car part 2 to the movable rod 113, one side of the car part 2 close to the protection part 1 is provided with a functional bend 21, and the range of an included angle formed between the extending direction of the functional bend 21 and the vertical direction is 10 degrees to 30 degrees.

If the elevator abnormally needs to enter the shaft to open the landing door, and the car part 2 does not extrude the movable rod 113 at the moment, the safety insurance needs to be opened through the landing door at the moment.

Here, the sensing member 11 further includes a driving block 114 connected to the movable rod 113, a control line 115 connected to the landing door portion 3, and a first spring 116 for connecting the driving block 114 and the control line 115, an end of the control line 115 is connected to a control switch 117, the control line 115 is pulled to pull the driving block 114 only by pressing the control switch 117, the driving block 114 extrudes the movable rod 113, the movable rod 113 displaces in the landing door direction, the process of pushing the contact block 12 by the pushing rod 13 is completed, and the landing door is in an openable state.

Moreover, at least a part of the driving block 114 is arc-shaped, so that the driving block 114 is not damaged by friction when the elevator operates normally, meanwhile, the first spring 116 connected between the driving block 114 and the control line 115 provides a reset force, after the landing door is opened, the driving block 114 is restored under the elastic force of the first spring 116, at this time, the whole sensing member 11 returns to the original state, and the landing door is locked before the next landing door opening signal comes.

In still another aspect, the driving block 114 is an elastic member, which can perform the ejecting action by itself without being elastically driven by the first spring 116.

The contact type landing door protection device is simple in overall structure, can effectively protect landing doors, can perform multiple protection on the running position of an elevator, is accurate in induction and high in safety performance, and can effectively prevent the landing doors from accidentally falling into a hoistway.

The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A contact layer door protection device which characterized in that: including protection portion (1), car portion (2) and layer door portion (3), protection portion (1) include with response piece (11) that car portion (2) are connected and with contact piece (12) that layer door portion (3) are connected, response piece (11) through catch bar (13) with contact piece (12) are connected, catch bar (13) have at least a part to be located fixed block (14), be provided with on contact piece (12) with fixed block (14) joint complex first kink (121) and with layer door portion (3) joint complex second kink (122), second kink (122) department is provided with layer door and stretches into portion (123), response piece (11) include dead lever (112) and movable rod (113) of connecting through axis of rotation (111), movable rod (113) with catch bar (13) are connected, the induction part (11) further comprises a driving block (114) connected with the movable rod (113), a control line (115) connected with the layer door part (3) and a first spring (116) used for connecting the driving block (114) with the control line (115), the end part of the control line (115) is connected with a control switch (117), the contact block (12) is connected with the fixed block (14) through a tension line (15), the protection part (1) is provided with a guide wheel (16) used for guiding the tension line (15), and the tension line (15) is connected with a second spring (17).

2. A contact landing door protection device as claimed in claim 1, wherein: the number of the rotating shafts (111), the fixed rods (112) and the movable rods (113) is two.

3. A contact landing door protection device as claimed in claim 1, wherein: the extending direction of the movable rod (113) forms an included angle with the vertical direction within the range of 10-30 degrees.

4. A contact landing door protection device as claimed in claim 1, wherein: at least a portion of the drive block (114) is arcuate.

5. A contact landing door protection device as claimed in claim 1, wherein: car portion (2) are close to one side of protection portion (1) is provided with function bending (21), the contained angle scope that forms between the extending direction of function bending (21) and the vertical direction is 10 to 30.

6. A contact landing door protection device as claimed in claim 1, wherein: at least one part of the landing door extending part (123) is arc-shaped.

7. A contact landing door protection device as claimed in claim 1, wherein: the number of the tension wire (15), the guide wheel (16) and the second spring (17) is two.