CN215207908U - Car elevator and maintenance safety protection device - Google Patents

Abstract

The application provides a car elevator and overhaul safety arrangement thereof. The maintenance safety protection device is suitable for a car elevator with a maintenance area; the method comprises the following steps: the detection mechanism is used for detecting whether the sheltering object exists in the overhaul area; the controller is used for controlling the elevator of the elevator car to enter a maintenance operation control state when the detection mechanism detects that the shielding object exists in the maintenance area; the detection mechanism includes: the emitter is used for emitting a detection signal for detecting the sheltering object to the maintenance area; and a receiver for receiving the probe signal. This application overhauls safety arrangement forms detection mechanism through using transmitter and receiver to whether there is the shelter in the maintenance district that detects the car elevator, when personnel get into the maintenance district, can shelter from the detection signal that the transmitter sent, make the detection signal that the receiver received change, with the safety of guaranteeing personnel, avoid taking place accident.

Description

Car elevator and maintenance safety protection device

Technical Field

The application belongs to the technical field of elevators, and more specifically relates to a car elevator and overhaul safety arrangement.

Background

The elevator product at present, in order to guarantee that inspection or maintainer can safely come in and go out elevator cab space, national elevator standard GB/T7588 elevator is made and is installed the first part of safety standard: the 5.4.8 clauses of passenger and freight elevators state that "the following devices should be placed on the roof: b) 5.12.1.11, in an accessible position where the inspection or maintenance personnel access is no more than 1.0 m. The apparatus may also be a stop on the service operation control apparatus no more than 1.0m from the inlet. Usually, an elevator is only provided with an overhaul box (also called an overhaul operation control device and a stop device) on the top of a car, and the elevator is controlled to enter an overhaul operation control state by operating the overhaul box and then overhauled.

Elevators sometimes require service, for example, in service areas such as the car roof, hoistway pit, and the like. During maintenance, maintenance personnel are generally required to enter the maintenance areas for operation. However, when the position where the maintainer enters the maintenance area is far away from the maintenance box or the maintainer forgets to operate the maintenance box, accidents are easy to happen. And passengers or other irrelevant people enter the elevator maintenance area by mistake, and the risk of accidents also exists.

SUMMERY OF THE UTILITY MODEL

The purpose of this application embodiment is providing a car elevator and overhauls safety arrangement thereof to the maintenance case position sets up in the maintenance district of the car elevator who solves existence among the prior art, can lead to getting into the maintenance district at personnel, and apart from the maintenance case far away, perhaps when the maintenance personnel forget the operation maintenance case, accident's problem easily takes place.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: the utility model provides an overhaul safety arrangement is applicable to the car elevator that has the maintenance district, overhaul safety arrangement and include:

the detection mechanism is used for detecting whether the sheltering object exists in the overhaul area; and the number of the first and second groups,

the controller is used for controlling the car elevator to enter an overhauling operation control state when the detection mechanism detects that the obstruction exists in the overhauling area;

the detection mechanism includes:

the transmitter is used for transmitting a detection signal for detecting the sheltering object to the maintenance area; and the number of the first and second groups,

and the receiver is used for receiving the detection signal and is connected with the controller.

In an alternative embodiment, the transmitter and the receiver are respectively disposed on opposite sides of the service area; or the transmitter and the receiver are arranged on the same side of the overhaul region.

In an optional embodiment, the detection mechanism comprises a light curtain, and the light curtain is arranged on the side of the maintenance area.

In an optional embodiment, the light curtains are arranged in pairs, and a pair of the light curtains are respectively arranged at two opposite sides of the maintenance area.

In an optional embodiment, the service safety arrangement further comprises a service box mounted on the service area.

It is another object of an embodiment of the present application to provide a car elevator, including a car movably installed in a hoistway and an access area located in the hoistway, the car elevator further including an access safety protection device as described in any of the above embodiments, the transmitter and the receiver being installed in the access area.

In an alternative embodiment, the car elevator further comprises a support fixed to the service area, the transmitter and the receiver being mounted on the support.

In an alternative embodiment, the service area comprises a first service area located at the top of the car, the first service area being fitted with the detection mechanism.

In an alternative embodiment, the support includes guard rails disposed on opposite sides of the first service area, respectively, the transmitter and the receiver being mounted on the guard rails.

In an optional embodiment, the car elevator is a double-passage elevator, the first service area comprises a first space located at the top of the car and adjacent to one passage position and a second space located at the top of the car and adjacent to the other passage position, and the detection mechanism is respectively installed in the first space and the second space.

In an alternative embodiment, the service area comprises a second service area located in the hoistway pit, the second service area having the detection mechanism mounted thereto.

In an alternative embodiment, the support comprises a bar arranged at the side of the second service area, and the transmitter and the receiver are arranged on the bar.

In an alternative embodiment, the car elevator is a dual lane elevator, the second service area includes a first area disposed adjacent to one lane of the hoistway pit and a second area disposed adjacent to another lane of the hoistway pit, and the first area and the second area are respectively mounted with the detection mechanism.

The beneficial effect of the maintenance safety arrangement that this application embodiment provided lies in: compared with the prior art, this application overhauls safety arrangement forms detection mechanism through using transmitter and receiver to whether there is the shielding thing in the maintenance district that detects the car elevator, when personnel get into the maintenance district, personnel can shelter from the detection signal that the transmitter sent, make the detection signal that the receiver received change, thereby make the controller control car elevator entering according to this change and overhaul operation control state, and then guarantee personnel's safety, avoid taking place accident.

The car elevator that this application embodiment provided's beneficial effect lies in: compared with the prior art, this application car elevator has used the maintenance safety arrangement of above-mentioned embodiment, and the security is higher to have the above-mentioned beneficial effect who overhauls safety arrangement, no longer describe herein.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic top view of a car portion of a car elevator according to an embodiment of the present disclosure;

fig. 2 is a side view of the car portion of fig. 1;

fig. 3 is a schematic top view of a car portion of a car elevator according to yet another embodiment of the present application;

fig. 4 is a side view of the car portion of fig. 3;

fig. 5 is a schematic top view of a hoistway pit portion of a car elevator provided in accordance with an embodiment of the present application;

FIG. 6 is a schematic diagram of a side view of the well pit portion of FIG. 5;

fig. 7 is a schematic top view of a hoistway pit portion of a car elevator provided in accordance with yet another embodiment of the present application;

fig. 8 is a schematic diagram of a side view of the well pit portion of fig. 7.

Wherein, in the drawings, the reference numerals are mainly as follows:

10-a car; 11-a car frame;

20-a well; 21-well pit; 22-pit ladder stand; 23-a guide rail; 24-a support;

30-maintenance area; 31-a first service area; 311-a first space; 312 — a second space; 32-a second service area; 321-a first region; 322-a second region;

41-a bracket; 411-guard rail; 412-strut; 42-channel; 421-a first channel; 422-a second channel; 43-a railing;

50-maintenance of the safety protection device; 51-a detection mechanism; 51 a-light curtain; 511-a transmitter; 512-a receiver; 52-a controller; 53-maintenance box.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Reference throughout this specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 and 2, fig. 1 is a schematic top view of a car 10 portion of a car elevator provided in this embodiment, wherein the car 10 only shows a top structure of the car 10. Fig. 2 is a schematic side view of a portion of the car 10 of the present embodiment, wherein the car 10 only shows the top structure of the car 10. Fig. 5 is a schematic top view of the hoistway pit 21 of the car elevator according to the present embodiment.

The car elevator provided by the present application will now be described with reference to fig. 1, 2, and 5. The car elevator includes a hoistway 20 and a car 10, the car 10 being movably mounted in the hoistway 20 such that the car 10 ascends and descends in the hoistway 20.

The hoistway 20 is provided with an overhaul region 30, if the overhaul region 30 can be arranged on the side wall of the hoistway 20, the overhaul region 30 can be arranged at the top of the car 10 in the hoistway 20, the overhaul region 30 can be arranged in the hoistway pit 21 of the hoistway 20, the overhaul region 30 can be arranged at the bottom of the car 10 in the hoistway 20, and the like, so that an overhaul person can overhaul the hoistway 20 or/and the car 10 in the overhaul region 30 to ensure the running safety of the car elevator.

The car elevator further comprises an overhaul safety protection device 50, and the safety of personnel entering the overhaul region 30 is protected by the overhaul safety protection device 50, so that the safety is improved.

The service safety arrangement 50 comprises a detection mechanism 51 and a controller 52. The detection mechanism 51 is used to detect whether a blockage is present in the service area 30. The controller 52 is used to control the car elevator into a service run control state.

When the device is used, when a shielding object exists in the maintenance area 30, if a maintenance person enters the maintenance area 30, the shielding object plays a role in shielding and is detected by the detection mechanism 51; if the service person places the service tool in the service area 30, it will also act as a mask and be detected by the detection mechanism 51. And the controller 52 is used for controlling the elevator of the elevator car to enter the maintenance operation control state when the detection mechanism 51 detects that the sheltering object exists in the maintenance area 30. That is to say, when detection mechanism 51 detects that maintenance area 30 has the shelter from, if have the maintainer to get into or when the maintenance instrument was placed, controller 52 control car elevator gets into maintenance operation control state to play the safety protection effect, need not the manual operation of maintainer, the security is high, the accident that avoids taking place that can be better. In this embodiment, a car elevator will typically have access to a passageway 42 on each floor to provide access to the car 10, with access to the car 10 being in the direction of the access to the passageway 42. The opposite sides of the service area 30 refer to opposite sides of the service area 30 in a direction into and out of the car 10.

The detection mechanism 51 includes a transmitter 511 and a receiver 512, the transmitter 511 is used for transmitting the detection signal, and the receiver 512 is used for receiving the detection signal.

When the inspection area 30 is used, the transmitter 511 and the receiver 512 can be installed in the inspection area 30, the transmitter 511 sends a detection signal to the inspection area 30, when a person enters the inspection area 30, the detection signal sent by the transmitter 511 is blocked by the person, and the detection signal received by the receiver 512 changes, so that whether the inspection area 30 is occupied or not is determined. And the receiver 512 is connected with the controller 52, if the receiver 512 can be connected with the controller 52 through a wire or can be in wireless communication connection through a wireless module, the change of the detection signal can be transmitted to the controller 52 so as to control the car elevator to enter an overhauling operation control state.

The application provides an overhaul safety arrangement 50, compare with prior art, form detection mechanism 51 through using transmitter 511 and receiver 512, whether there is the shelter in the maintenance district 30 that detects the car elevator, thereby when personnel get into maintenance district 30, can shelter from the detecting signal that transmitter 511 sent, and then the detecting signal that makes receiver 512 receive appears changing, so that controller 52 gets into the operation control state of overhauing according to this change control car elevator, with the safety of guaranteeing personnel, avoid taking place accident.

Compared with the prior art, the car elevator provided by the application uses the maintenance safety protection device 50 of the embodiment, the safety is higher, when a person enters the maintenance area 30 of the car elevator, the car elevator can automatically enter the maintenance operation control state to ensure the safety of the person and avoid accidents.

In one embodiment, the transmitter 511 and the receiver 512 of the detection mechanism 51 are respectively arranged at two opposite sides of the service area 30, that is, the transmitter 511 of the detection mechanism 51 is arranged at one side of the service area 30, and the receiver 512 is arranged at the other side of the service area 30, so that the transmitter 511 sends a detection signal to the receiver 512 and the receiver 512 receives the detection signal when the car elevator is in normal use. If there is personnel or other when sheltering from in maintenance area 30, can block that the detection signal gets into receiver 512, receiver 512 can't receive the detection signal like this to judge that maintenance area 30 has personnel or article, and then make controller 52 control car elevator can get into the maintenance operation control state automatically.

Of course, the transmitter 511 and the receiver 512 of the detection means 51 can also be arranged on the same side of the service area 30, so that in normal use of the car elevator the transmitter 511 emits a detection signal, which the receiver 512 does not receive. If there is personnel or other shelters from in maintenance zone 30, transmitter 511 sends out the detected signal and can be reflected by personnel or other shelters from, and is detected by receiver 512 to judge that maintenance zone 30 has personnel or article, and then make controller 52 control car elevator can get into maintenance operation control state automatically.

In one embodiment, the detection signal is infrared light, the detection mechanism 51 is an infrared light detector, the corresponding transmitter 511 is an infrared light transmitter, and the corresponding receiver 512 is an infrared light receiver. Of course, the detection signal may be an ultrasonic wave, and the detection mechanism 51 is an ultrasonic wave detector, the corresponding transmitter 511 is an ultrasonic wave transmitter, and the receiver 512 is an ultrasonic wave receiver. The detection signal may also be a laser, and the detection mechanism 51 is a laser detector, and the corresponding transmitter 511 is a laser transmitter, and the receiver 512 is a laser receiver.

In one embodiment, the service area 30 may be provided with a plurality of detection mechanisms 51 to better detect whether a person enters the service area 30 to improve safety.

In one embodiment, when the service area 30 is provided with a plurality of detection mechanisms 51, the plurality of detection mechanisms 51 may be the same type of detector, such as an infrared detector, an ultrasonic detector, a laser detector, or a radar. Of course, a plurality of detection mechanisms 51 may also use various types of detectors, such as an infrared light detector, an ultrasonic detector, a laser detector, and a radar, which may be used in combination.

In one embodiment, the detection mechanism 51 comprises a light sheet 51a, the light sheet 51a comprising a transmitter 511 and a receiver 512; the light curtain 51a is disposed at a side of the service area 30. Use light curtain 51a, the coverage area is wide, detects more accurately, and the effect is better, and then can make car elevator security higher, better avoiding the accident.

In one embodiment, the light curtain 51a includes a plurality of emitters 511 and a plurality of receivers 512 arranged in a row, so that the emitters 511 and the receivers 512 cooperate to cover a wider area, thereby improving the accuracy of detection.

In one embodiment, the light curtains 51a are arranged in pairs, and the two light curtains 51a in a pair are respectively arranged on opposite sides of the service area 30, such that the transmitter 511 in one light curtain 51a sends a detection signal to the receiver 512 of the other light curtain 51a, thereby detecting whether there is a person in the service area 30, so as to improve the coverage area, and improve the accuracy of the detection.

Of course, it is also possible to arrange the plurality of transmitters 511 in a row to form a transmitting row, and the plurality of receivers 512 in a row to form a receiving row, wherein the transmitting row and the receiving row are respectively disposed at two opposite sides of the service area 30, so as to increase the coverage area and improve the accuracy of detection.

It can be understood that, because the light curtain 51a includes the emitter 511 and the receiver 512, the light curtain 51a may be disposed only on one side of the inspection area 30, when a person enters the inspection area 30, the emitter 511 of the light curtain 51a sends out a detection signal which is reflected back by the person or other obstacles and is detected by the receiver 512, so as to determine that the person or article exists in the inspection area 30, and further, the controller 52 controls the car elevator to automatically enter the inspection operation control state.

In one embodiment, the light curtain 51a can be installed such that the light curtain 51a is disposed horizontally, which can enable the light curtain 51a to cover a wider range of differences to improve the accuracy of personnel access to the inspection service area 30.

In one embodiment, the service safety arrangement 50 further comprises a service box 53, the service box 53 being mounted on the service area 30. Set up and overhaul case 53, can overhaul case 53 through manual operation to make car elevator get into to overhaul operation control state, with the assurance personnel safety, and with detection mechanism 51 cooperation, promotion security that can be better.

In one embodiment, the car elevator further includes a bracket 41, the bracket 41 is installed at the service area 30, and the transmitter 511 and the receiver 512 are installed at the bracket 41, so that the detection mechanism 51 is supported by the bracket 41 to install the detection mechanism 51 at the service area 30. In addition, since the personnel has a certain height, the detection mechanism 51 is supported by the bracket 41, so that the detection mechanism 51 can be spaced from the bottom of the inspection area 30 to prevent impurities from shielding the detection mechanism 51, thereby ensuring the safety of the personnel detection.

In one embodiment, the car 10 is provided with a car frame 11 to support and secure the car 10 for movement of the car 10 up and down a hoistway 20.

In one embodiment, the service area 30 comprises a first service area 31, the first service area 31 being located on top of the car 10, i.e. the top of the car 10 is provided with the first service area 31 for servicing the top of the car 10. The first service area 31 is provided with a detection mechanism 51, so that when a person enters the first service area 31, the car elevator can automatically enter a service operation control state to ensure the safety of the person. It will be appreciated that for some car elevators, it is sometimes necessary to service each access way 42 in the hoistway 20, and that the service area 30 may also be provided in the hoistway 20 at a location corresponding to each access way 42 in each floor, so that access ways 42 in each floor of the hoistway 20 can be serviced. The inspection area 30 is provided with a detection mechanism 51, and the detection mechanism 51 can be arranged on the inner wall of the hoistway 20 to detect the entrance of a person into the inspection area 30.

In one embodiment, the support 41 includes a guard rail 411, and the guard rail 411 may be respectively disposed at opposite sides of the first service area 31 at the top of the car 10, and the transmitter 511 and the receiver 512 are installed on the guard rail 411, that is, the sensing mechanism 51 is installed on the guard rail 411, and the sensing mechanism 51 is supported by the guard rail 411. In addition, set up guardrail 411, when personnel got into first service area 31, can play safety protection's effect to promote the security.

In one embodiment the car elevator is a double-track elevator, that is to say the car 10 of the car elevator has two tracks 42 for access. Generally, two access ways 42 of a two-way elevator are located at opposite ends of the car 10. The entry and exit directions of the two passages 42 are on the same straight line, and the opposite ends of the car elevator refer to the opposite ends in the direction of the entry and exit passage 42. For a double-channel elevator, an inlet and an outlet are formed at one end of some floors corresponding to the lift car 10; while some floors have entrances and exits corresponding to the other ends of the car 10, of course, some floors may have entrances and exits corresponding to the opposite ends of the car 10. Particularly the lowermost floor, most of them are provided with respective ports corresponding to the opposite ends of the cage 10. A corresponding dual lane elevator has two lanes 42 into and out of the top of the car 10. Thus, during maintenance, a maintenance person can access the top of the car 10 from different passages when the maintenance person performs maintenance on the top of the car 10 at different floors.

The first service area 31 includes a first space 311 and a second space 312, the first space 311 being located at the top of the car 10 adjacent to one of the passages 42, and the second space 312 being located at the top of the car 10 adjacent to the other passage 42. For convenience of description, the two passages 42 are a first passage 421 and a second passage 422, respectively, and then the first space 311 is located at the top of the car 10 near the first passage 421, and the second space 312 is located at the top of the car 10 near the second passage 422.

Since a dual-lane elevator has two lanes 42 into and out of the top of the car 10, the first service area 31 will typically be provided at the top of the car 10 adjacent to each of the two lanes 42. The car frame 11 is thus provided at a middle region of the top of the car 10 to more stably support the car 10, that is, the car frame 11 is provided at a middle region of the top of the car 10 in the direction of the passage 42. The first space 311 is located on one side of the car frame 11 and the second space 312 is located on the other side of the car frame 11, i.e., the first space 311 is located on one side of the car frame 11 adjacent to one of the aisles 42 and the second space 312 is located on one side of the car frame 11 adjacent to the other aisle 42. For convenience of description, the two passageways 42 are a first passageway 421 and a second passageway 422, respectively, the first space 311 is located on the side of the car frame 11 close to the first passageway 421, and the second space 312 is located on the side of the car frame 11 close to the second passageway 422.

The detection mechanisms 51 are respectively installed in the first space 311 and the second space 312, so that the first channel 421 of the maintainer enters the first space 311, or the maintainer enters the second space 312 from the second channel 422, and the first space and the second space can be detected by the detection mechanisms 51, so that the elevator can automatically enter a maintenance operation control state to ensure the safety of the staff.

Referring to fig. 3 and 4, fig. 3 is a schematic top view of a car 10 portion of a car elevator provided in this embodiment, wherein the car 10 only shows a top structure of the car 10. Fig. 4 is a schematic side view of a portion of the car 10 of the present embodiment, wherein the car 10 only shows the top structure of the car 10. The structure of the embodiment is a modification of that of fig. 1 and 2, in which the car elevator is a one-way 42 elevator, i.e. the car elevator has one passage 42 for access on each floor. The top of the car 10 has a first access area 31.

In one embodiment, a rail 43 is provided on the top of the car 10, and the rail 43 is located at the end of the top of the car 10 away from the channel 42 to provide safety protection, especially to prevent a service person from falling from the end of the top of the car 10 away from the channel 42.

In one embodiment, the two ends of the balustrade 43 are respectively connected to the guardrails 411 at the two sides of the first service area 31, so that the balustrade 43 cooperates with the guardrails 411 to protect personnel safety and the balustrade 43 is fixed more firmly.

Referring to fig. 5 and 6, fig. 5 is a schematic top view of a hoistway pit 21 of a car elevator according to this embodiment. Fig. 6 is a schematic side view of a hoistway pit 21 provided in this embodiment.

In one embodiment, referring to fig. 5 and 6, the service area 30 includes a second service area 32, and the second service area 32 is located in the hoistway pit 21, that is, the hoistway pit 21 is provided with the second service area 32, so as to service the hoistway pit 21. The second service area 32 is equipped with a detection means 51 so that the car elevator can automatically enter a service operation control state when a person enters the second service area 32 to ensure the safety of the person.

In one embodiment, the support 41 includes a support bar 412, the support bar 412 may be disposed on two opposite sides of the second service area 32 of the hoistway pit 21, respectively, and the transmitter 511 and the receiver 512 are mounted on the support bar 412, that is, the detection mechanism 51 is mounted on the support bar 412, and the detection mechanism 51 is supported by the support bar 412. The supporting rod 412 is used, so that the fixing device can be conveniently fixed on the side wall of the hoistway pit 21, the installation is convenient, and the occupied space is small.

In one embodiment, a pit ladder 22 is provided in the hoistway pit 21 adjacent to the hoistway pit 21 at the access passage 42 to allow access to the hoistway pit 21 by service personnel from the access passage 42.

In one embodiment the car elevator is a double-track elevator, that is to say the car 10 of the car elevator has two tracks 42 for access. The lowest floor of the hoistway 20 would then have two passages 42 into and out of the hoistway pit 21, with the directions of entry and exit of these two passages 42 being collinear, and the opposite ends of the car elevator would refer to the opposite ends along the direction of the passages 42.

Since a dual-lane elevator has two access lanes 42 per floor, a second service area 32 is typically provided in the hoistway pit 21 adjacent to each of the two lanes 42.

The second service area 32 includes a first area 321 and a second area 322, the first area 321 being located at a position of the hoistway pit 21 adjacent to one of the passages 42 of the hoistway pit 21, and the second area 322 being located at a position of the hoistway pit 21 adjacent to the other passage 42 of the hoistway pit 21.

For convenience of description, the two passages 42 are respectively a first passage 421 and a second passage 422, the first area 321 is located at a position of the hoistway pit 21 adjacent to the first passage 421, the second area 322 is located at a position of the hoistway pit 21 adjacent to the second passage 422, and the first area 321 and the second area 322 are respectively provided with the detection mechanism 51, so that the detection mechanism 51 can detect when a maintainer enters the first area 321 through the first passage 421 or when the maintainer enters the second area 322 through the second passage 422, so that the car elevator can automatically enter a maintenance operation control state to ensure the safety of the maintainer.

In one embodiment, referring to fig. 1 and 5, guide rails 23 are also provided in the hoistway 20 to guide the car 10 up and down. To facilitate smooth elevator movement of the car 10 in the hoistway 20.

In one embodiment, the guide rails 23 are located in a middle region of the hoistway 20, that is, the guide rails 23 are provided in a middle region of the hoistway 20 in the direction of the passage 42 to more stably guide the car 10 to smoothly ascend and descend in the hoistway 20. The corresponding first area 321 and second area 322 are located on both sides of the rail 23.

In one embodiment, a support 24 is provided in the hoistway pit 21 to fix the guide rail 23, thereby firmly and stably fixing the guide rail 23 in the hoistway 20 to better guide the car 10 up and down.

Referring to fig. 7 and 8, fig. 7 is a schematic top view of a hoistway pit 21 of a car elevator according to this embodiment. Fig. 8 is a schematic side view of the hoistway pit 21 provided in this embodiment. The structure of the present embodiment is modified from that of fig. 5 and 6, and in the present embodiment, the car elevator is a one-way 42 elevator, that is, the hoistway pit 21 of the car elevator has one way 42 for entrance and exit. The hoistway pit 21 has a second service area 32.

The car elevator of this application embodiment, the security is high, gets into the maintenance district 30 of car elevator at the maintainer, perhaps when the passenger mistake goes into the maintenance district 30 of car elevator, the car elevator can get into automatically and overhaul operation control state to guarantee personnel's safety, avoid taking place accident.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (13)

1. The utility model provides an overhaul safety arrangement, is applicable to the car elevator that has the maintenance district, a serial communication port, overhaul safety arrangement includes:

the detection mechanism is used for detecting whether the sheltering object exists in the overhaul area; and the number of the first and second groups,

the controller is used for controlling the car elevator to enter an overhauling operation control state when the detection mechanism detects that the obstruction exists in the overhauling area;

the detection mechanism includes:

the transmitter is used for transmitting a detection signal for detecting the sheltering object to the maintenance area; and the number of the first and second groups,

and the receiver is used for receiving the detection signal and is connected with the controller.

2. The service safety protection device of claim 1, wherein: the transmitter and the receiver are respectively arranged on two opposite sides of the overhaul region; or the transmitter and the receiver are arranged on the same side of the overhaul region.

3. The service safety protection device of claim 1, wherein: the detection mechanism comprises a light curtain, and the light curtain is arranged on the side edge of the overhaul area.

4. The service safety protection device of claim 3, wherein: the light curtain sets up in pairs, and is a pair of the light curtain is located respectively overhaul the opposite both sides in district.

5. Service safety arrangement according to any of claims 1-4, characterized in that: the overhaul safety protection device further comprises an overhaul box, and the overhaul box is installed on the overhaul area.

6. A car elevator, includes movably mounted in the well car and is located the maintenance area in the well, its characterized in that: the car elevator further comprising an inspection safety protection device according to any one of claims 1-5, the transmitter and the receiver both being mounted to the inspection area.

7. The car elevator of claim 6, wherein: the car elevator still including be fixed in the support in maintenance district, the transmitter with the receiver install in on the support.

8. A car elevator as claimed in claim 7, wherein: the maintenance area comprises a first maintenance area positioned at the top of the car, and the detection mechanism is installed in the first maintenance area.

9. A car elevator as defined in claim 8, wherein: the support is including locating respectively the guardrail of the relative both sides in first maintenance district, the transmitter with the receiver is installed in on the guardrail.

10. A car elevator as defined in claim 8, wherein: the car elevator is the binary channels elevator, first maintenance zone is including being located the first space of car top adjacent a passageway position with be located the second space of car top adjacent another passageway position, first space with the second space is installed respectively detection mechanism.

11. A car elevator as claimed in claim 7, wherein: the overhaul region comprises a second overhaul region located in the hoistway pit, and the detection mechanism is installed in the second overhaul region.

12. A car elevator as defined in claim 11, wherein: the support is including locating the branch of second maintenance district side, the transmitter with the receiver install in on the branch.

13. A car elevator as defined in claim 11, wherein: the car elevator is the binary channels elevator, the second overhauls the district including neighbouring first region that a passageway of well pit set up and neighbouring the second region that another passageway of well pit set up, first region with the second region is installed respectively detection mechanism.

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