CN212531879U - Elevator positioning and protecting device - Google Patents

Abstract

The application relates to an elevator location and protection device, include: the mounting seat is used for being fixed on one side of a bottom plate of the elevator car and comprises a fixing plate, and the fixing plate is provided with a jack; the bolt is movably arranged on the mounting seat and is connected with a driving device; the limiting plates are used for being fixed on one side of an elevator shaft of a building floor, and the limiting plates are arranged above and below each floor in pairs; the mechanical switches are fixedly connected to the pins and positioned above and below the pins, and the mechanical switches can control the elevator car to stop lifting when being extruded; when the elevator car opens the door, the bolt can insert the jack under drive arrangement's drive and fix, and the limiting plate is located bolt and mechanical switch's lift route. When the elevator produced the trouble in the flat bed position, the utility model discloses have the multiple protection of mechanical switch protection and physical protection, can guarantee that elevator car can not go up and down when the lift-cabin door does not close, avoid elevator to cut the occurence of failure.

Description

Elevator positioning and protecting device

Technical Field

The application belongs to the technical field of elevators, and particularly relates to an elevator positioning and protecting device.

Background

At present, most elevators are provided with protection devices for transversely preventing the elevator door from clamping people, however, the protection devices for longitudinally preventing the occurrence of the shearing accident are rare, once the elevator has the shearing fault, the elevator runs abnormally when people do not enter or leave completely, people can be longitudinally sheared and extruded by the elevator running vertically and a static floor, and casualties can be caused under the condition that the protection devices for preventing the occurrence of the longitudinal shearing accident are not provided. As for the elevator seen in the real life of people at present, because no corresponding protection device exists, malignant casualty accidents are inevitably caused, the life safety of people is endangered, and a plurality of malignant accidents are reported.

The biggest reason for the occurrence of the shearing accident is that the door closing system of the elevator is not perfect, and the elevator ascends and descends when the elevator is not closed, which is the biggest problem of the occurrence of the accident.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problem that the door closing system of the elevator in the prior art is imperfect, the elevator positioning and protecting device is provided.

The utility model provides a technical scheme that its technical problem adopted is:

an elevator positioning and protection device comprising:

the mounting seat is used for being fixed on one side of a bottom plate of the elevator car and comprises a fixing plate, and a jack is formed in the fixing plate;

the bolt is movably arranged on the mounting seat and is connected with a driving device;

the limiting plates are used for being fixed on one side of an elevator shaft of a building floor, and the limiting plates are arranged above and below each floor in pairs;

the mechanical switches are fixedly connected to the inserted pins and positioned above and below the inserted pins, and the mechanical switches can control the elevator car to stop lifting when being extruded;

when the elevator car opens the door, the plug pin can be driven by the driving device to be inserted into the jack for fixing, and the limiting plate is positioned on the lifting path of the plug pin and the mechanical switch; when the elevator car closed the door, the bolt can be followed drive arrangement's drive in the jack is taken out, the limiting plate is not located the bolt with mechanical switch's lift route.

Preferably, the elevator positioning and protecting device of the present invention further comprises an optical sensing assembly, wherein the optical sensing assembly is fixedly connected to the mounting base, the optical sensing assembly has an upper sensing area and a lower sensing area, and the sensing areas are distributed on the upper side and the lower side of the mechanical switch; the optical induction component only carries out the response when elevator car opens the door, the response is regional to be used for responding to the limiting plate, the response is regional to during the limiting plate, can control elevator car and stop.

Preferably, the utility model discloses an elevator location and protection device still includes: the induction positioning assembly is fixedly connected to the mounting seat and used for sensing the position above and below each floor, and when the induction positioning assembly senses the position above and below each floor simultaneously, the elevator car can be controlled to stop.

Preferably, the utility model discloses an elevator location and protection device, be equipped with the slide rail on the mount pad, the bolt passes through the slider to be installed on the slide rail.

Preferably, the utility model discloses an elevator location and protection device, drive arrangement includes:

the traction rope is fixedly connected with the bolt;

the pulley is arranged on the mounting seat and used for guiding the traction rope;

the traction machine is fixed with one end of the traction rope and used for retracting the traction rope;

and the balancing weight is fixed at the other end of the traction rope and is used for driving the bolt to be inserted into the jack when the traction rope is released by the tractor.

Preferably, in the elevator positioning and protecting device of the present invention, the sensing and positioning components are located at the upper and lower sides of the optical sensing component; sensor mounting plates are vertically and fixedly mounted on the mounting seat and distributed on the left side and the right side of the limiting plate; the top and the lower extreme of sensor mounting panel still fixed mounting have limit travel switch, limit travel switch is used for controlling elevator car and stops when touching the top or the bottom of elevator well.

Preferably, the utility model discloses an elevator location and protection device, the fixed plate distributes the left and right both sides of limiting plate.

Preferably, the utility model discloses an elevator location and protection device, the optical sensing subassembly is upper and lower two sets of grating sensor, the response locating component is upper and lower two sets of infrared inductor.

Preferably, the utility model discloses an elevator location and protection device, infrared inductor is including setting up in one side infrared generator on the sensor mounting panel and setting up at the opposite side expelling plate on the sensor mounting panel.

Preferably, the utility model discloses an elevator location and protection device, the top and the below of every floor department through consolidating a fixed connection between the limiting plate to make the top of every floor department the limiting plate consolidate a, the below of every floor department the lateral wall of limiting plate and elevator well forms a confined frame shape or annular.

Preferably, the utility model discloses an elevator location and protection device, mechanical switch is located 10-12cm on the bolt pin, lower both sides, optics response subassembly is located 17-19cm on the bolt pin, lower both sides, response locating component is located 19-21cm on the bolt pin, lower both sides.

The utility model has the advantages that: when the elevator breaks down at the flat bed position, have the multiple protection of mechanical switch protection and physical protection, can guarantee that the elevator car can not go up and down when the lift-cabin door does not close, avoid the elevator to cut the emergence of accident.

Drawings

The technical solution of the present application is further explained below with reference to the drawings and the embodiments.

Fig. 1 is a schematic structural view of an elevator positioning and protection device according to an embodiment of the present application in a state where a plug is not inserted;

fig. 2 is a schematic structural view illustrating a state in which a plug of an elevator positioning and protecting apparatus according to an embodiment of the present application is inserted;

fig. 3 is a schematic view of the position of an elevator positioning and protection device according to an embodiment of the present application installed in a building;

FIG. 4 is a schematic illustration of the position of the embodiment of the present application in the inserted state;

FIG. 5 is a schematic illustration of the position of the inserted state of the plug pin according to the embodiment of the present application;

FIG. 6 is a schematic diagram illustrating the installation positions of the optical sensing assembly and the sensing and positioning assembly according to the embodiment of the present application;

fig. 7 is a schematic diagram illustrating a structure and an installation manner of a limiting plate according to an embodiment of the application;

fig. 8 is a schematic structural diagram of an end of a limiting plate connected with a floor according to an embodiment of the application;

fig. 9 is a schematic view of a reverse rotation counterweight block mounting structure according to an embodiment of the present application.

The reference numbers in the figures are:

1 mounting base

2 bolt

3 limiting plate

5 mechanical switch

6 inductive locating component

7 sensor mounting plate

8 limit travel switch

9 optical sensing assembly

11 fixed plate

12 sliding rail

22 slide block

31 reinforcing strip

32 floor connecting plate

41 traction rope

42 pulley

44 balance weight

45 reverse rotation haulage rope

46 reverse counter weight block

61 Infrared inductor

62 infrared inductor

91 grating sensor

92 grating sensor

111 jack

611 infrared generator

612 emitting plate

621 infrared generator

622 emission plate

A Elevator car

And B floor.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.

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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Examples

This embodiment provides an elevator location and protection device, as shown in fig. 1-5, includes:

the mounting seat 1 is used for being fixed on one side of a bottom plate of an elevator car, and comprises a fixing plate 11, wherein the fixing plate 11 is provided with an inserting hole 111;

the bolt 2 is movably arranged on the mounting seat 1, and the bolt 2 is connected with a driving device;

the limiting plates 3 are used for being fixed on one side of an elevator shaft of a building floor, and the limiting plates 3 are arranged above and below each floor in pairs;

the mechanical switch 5 is fixedly connected to the bolt 2 and positioned above and below the bolt 2, and the mechanical switch 5 can control the elevator car to stop lifting when being extruded;

when the elevator car is opened, the bolt 2 can be driven by the driving device to be inserted into the jack 111 for fixing, and the limiting plate 3 is positioned on the lifting path of the bolt 2 and the mechanical switch 5; when the elevator car is closed, the bolt 2 can be taken out from the jack 111 under the drive of the driving device, and the limiting plate 3 is not located on the lifting path of the bolt 2 and the mechanical switch 5.

As shown in fig. 3, the elevator positioning and protecting device of this embodiment is installed on one side of the floor of the elevator car a, and a specific fixing method is to embed a shaft (in this embodiment, a square tube of 50x50x5mm is specifically adopted to be fixed at the axis of the bottom of the car, and the square tube is parallel to the steel wire rope at the bottom of the car) into the floor of the elevator car a, insert the shaft into a socket reserved on the mounting seat 1 to be fixed, fix the limiting plate 3 on one side of the elevator shaft of the building, and specifically embed and fix the limiting plate into each floor B (which can be fixed by concrete pouring and matching with the fixing plate).

The working principle of the elevator positioning and protecting device of the embodiment is as follows: the bolt 2 and the mechanical switch 5 correspondingly move along with the opening or closing of the door of the elevator car A, so that when the elevator car A opens the door (as long as the door is not completely closed, the door is considered to be opened), the bolt 2 and the mechanical switch 5 extend into the line where the limiting plate 3 is located. When the bottom plate of the elevator car A is flush with the floor B, the elevator car A can execute door opening action, if the elevator breaks down at the moment, the upper limiting plate 3 can collide with the upper mechanical switch 5 in case that the elevator car A rises in a door opening state, and then the mechanical switch 5 controls the elevator car A to stop lifting; in case that the elevator car A descends under the door-opening state, the lower limiting plate 3 collides with the lower mechanical switch 5, and then the mechanical switch 5 controls the elevator car A to stop ascending and descending. Under the condition that the mechanical switch 5 also fails, the plug pin 2 is in physical contact with the limiting plate 3, specifically, the mechanical strength of the plug pin 2 and the limiting plate 3 is enough, steel or hard alloy is preferable on the material, and the driving force for driving the elevator is ensured to be smaller than the supporting force which can be given to the plug pin 2 by the limiting plate 3, so that the elevator car A can be forcibly stopped and cannot ascend and descend. The elevator positioning and protecting device has multiple protections of mechanical switch protection and physical protection when the elevator breaks down at the flat bed position, and can ensure that the elevator car can not lift when the elevator door is not closed, thereby avoiding the occurrence of elevator shearing accidents.

Preferably, the elevator positioning and protecting device of the present embodiment further includes an optical sensing assembly 9, the optical sensing assembly 9 is fixedly connected to the mounting base 1, the optical sensing assembly has an upper sensing area and a lower sensing area, and the sensing areas are distributed on the upper side and the lower side of the mechanical switch 5; the optical induction subassembly only carries out the response when elevator car opens the door, the response is regional to be used for responding to limiting plate 3, the response is regional to when limiting plate 3, can control elevator car and stop. The theory of operation of the optical sensing assembly 9 of this embodiment with mechanical switch 5 is similar, but the position that optical sensing assembly 9 was installed will be more outside (use to be close to bolt 2 for the inboard, keep away from bolt 2 for the outside), like this at elevator car A execution action of opening the door, when the elevator broke down, elevator car A goes up and down under the state of opening the door, at first optical sensing assembly 9 can sense limiting plate 3 and control elevator car and stop, then reuse mechanical switch 5 control elevator car and stop when optical sensing assembly 9 response became invalid.

Preferably, the elevator positioning and protecting device of this embodiment further comprises: the induction positioning assembly 6 is fixedly connected to the mounting seat 1 and used for sensing the upper side and the lower side of each floor, and when the induction positioning assembly senses the upper side and the lower side of each floor simultaneously, the elevator car can be controlled to stop when the limiting plate 3 is used. Specifically, the distance between the upper and lower limiting plates 3 of each floor is equal to the distance between the upper and lower ends of the induction positioning assembly 6, so that the upper and lower limiting plates 3 of each floor can be used for judging whether the bottom plate of the elevator car A is aligned with the floor B or not by utilizing the induction positioning assembly 6 to induce the floor, and the elevator car A can be conveniently and accurately stopped. Preferably, in the elevator positioning and protecting device of this embodiment, as shown in fig. 4, a sliding rail 12 is provided on the mounting base 1, and the latch 2 is mounted on the sliding rail 12 through a sliding block 22. Specifically, the optical sensing component 9 has a sensing range of about 2cm above and below, i.e. allowing the elevator car a to stop about 2cm above or below. In the actual use process, the following scenarios are taken as an example: the elevator door is opened, the optical sensing component 9 senses the upper limiting plate 3 and the lower limiting plate 3 to obtain that the elevator is not leveled, the control system closes the door again, and the elevator car A moves for a certain distance again, so that the sensing positioning component 6 senses that the upper limiting plate 3 and the lower limiting plate 3 reach the leveling.

Preferably, the elevator positioning and protecting device of the present embodiment, as shown in fig. 4 and 5, the driving device includes:

the traction rope 41 is fixedly connected with the bolt 2;

a pulley 42 provided on the mount 1 for guiding the traction rope 41;

the traction machine is fixed with one end of the traction rope 41 and used for retracting and releasing the traction rope 41;

and the counterweight block 44 is fixed at the other end of the traction rope 41, and the counterweight block 44 is used for driving the bolt 2 to be inserted into the insertion hole 111 when the traction machine releases the traction rope 41.

Specifically, in this embodiment, the retraction and release actions of the tractor and the opening and closing actions of the elevator are linked (specifically, linked by using a switch such as a PLC or a relay), when the elevator car a closes the door, as shown in fig. 4, the tractor retracts the traction rope 41, the plug 2 is drawn out from the fixing plate 11, the counterweight 44 is lifted, and when the elevator car a opens the door, as shown in fig. 5, the tractor loosens the traction rope 41, the counterweight 44 falls, and the plug 2 is driven to be inserted into the insertion hole 111 of the fixing plate 11. In this embodiment, the pulling rope 41 is preferably made of a high-strength material, such as a steel wire, if the pulling rope 41 is broken, as shown in fig. 9, the weight block 44 falls naturally, at this time, the weight block 44 triggers the reverse mechanism, the reverse weight block 46 pulls the bolt 2 to return to the initial position (i.e. the bolt 2 is no longer inserted into the insertion hole 111 of the fixing plate 11), at this time, the optical sensing component 9 still keeps working, and the protection of the photoelectric switch is kept. Specifically, as shown in fig. 9, the reverse weight block 46 is disposed on one side of the weight block 44, the reverse weight block 46 is connected to the plug pin 2 through a reverse pulling rope 45, the reverse weight block 46 pulls the plug pin 2 to move in a direction opposite to the weight block 44, and the weight of the reverse weight block 46 is greater than that of the weight block 44. The lowermost end of the guide rail where the weight 44 is located has a trigger mechanism for sensing the weight 44, and the mechanism can be triggered only when the weight 44 falls out of the normal range (i.e. it is determined that the traction rope 41 of the weight 44 is broken). The reverse counter weight 46 has a supporting mechanism in a normal state, that is, the reverse counter weight 46 does not participate in the traction of the bolt 2 in a normal state, and only when the pulling rope 41 is broken, the triggering mechanism judges that the pulling rope 41 is broken and controls the supporting mechanism to cancel the support of the reverse counter weight 46, so that the reverse counter weight 46 participates in the reverse traction of the bolt 2.

Preferably, in the elevator positioning and protecting device of the present embodiment, as shown in fig. 1 and 2, the sensing and positioning components are located at the upper and lower sides of the optical sensing component; the mounting seat 1 is vertically and fixedly provided with a sensor mounting plate 7, and the sensor mounting plates 7 are distributed on the left side and the right side of the limiting plate 3; the top and the lower extreme of sensor mounting panel 7 still fixed mounting have limit travel switch 8, limit travel switch 8 is used for controlling elevator car and stops when touching the top or the bottom of elevator well.

Preferably, in the elevator positioning and protecting device of the present embodiment, as shown in fig. 1 and 2, the fixing plates 11 are distributed on the left and right sides of the limiting plate 3. The fixing plates 11 on both sides have high strength and can give sufficient supporting force to the socket 2.

Preferably, in the elevator positioning and protecting device of this embodiment, as shown in fig. 6, the optical sensing component 9 is an upper grating sensor 91 and a lower grating sensor 92, and the sensing and positioning component 6 is an upper infrared sensor 61 and a lower infrared sensor 62.

Preferably, in the elevator positioning and protecting device of the present embodiment, as shown in fig. 6, the infrared sensors 61, 62 include infrared generators 611, 621 provided on the sensor mounting plate 7 on one side and emitting plates 612, 622 provided on the sensor mounting plate 7 on the other side.

Preferably, the embodiment provides a structure and an installation method of the limiting plate 3, as shown in fig. 7, the limiting plate 3 above and below each floor B is fixedly connected by a reinforcing bar 31, so that the limiting plate 3 above each floor, the reinforcing bar 31, the limiting plate 3 below each floor and a sidewall of the elevator shaft form a closed frame or ring. Meanwhile, as the bolt 2, the fixing plates 11 at the left side and the right side and the mounting seat 1 of the elevator positioning and protecting device of the embodiment are equivalent to form a closed ring shape or a closed frame shape as shown in fig. 7, when the bolt 2 is inserted into the fixing plate 11, as shown in fig. 7, a mutually buckled state of two closed frames is formed, so that the elevator positioning and protecting device has strong bearing capacity and can ensure safety performance. As shown in fig. 8, the specific width of the limiting plate 3 and the reinforcing bar 31 may be about 1cm, and a floor connecting plate 32 embedded in the floor concrete is fixed to the other end of the limiting plate 3.

Preferably, in the elevator positioning and protecting device of the present embodiment, the mechanical switch 5 is located at 10-12cm on the upper and lower sides of the plug 2, the optical sensing component 5 is located at 17-19cm on the upper and lower sides of the plug 2, and the sensing and positioning component 6 is located at 19-21cm on the upper and lower sides of the plug 2.

In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. An elevator positioning and protection device, comprising:

the mounting seat (1) is used for being fixed on one side of a bottom plate of an elevator car, and comprises a fixing plate (11), wherein the fixing plate (11) is provided with a jack (111);

the bolt (2) is movably arranged on the mounting seat (1), and the bolt (2) is connected with a driving device;

the limiting plates (3) are fixed on one side of an elevator shaft of a building floor, and the limiting plates (3) are arranged above and below each floor in pairs;

the mechanical switch (5) is fixedly connected to the bolt (2) and positioned above and below the bolt (2), and the mechanical switch (5) can control the elevator car to stop lifting when being extruded;

when the elevator car is opened, the bolt (2) can be driven by the driving device to be inserted into the jack (111) for fixing, and the limiting plate (3) is positioned on a lifting path of the bolt (2) and the mechanical switch (5); when the door of the elevator car is closed, the bolt (2) can be driven by the driving device to be drawn out of the jack (111), and the limiting plate (3) is not positioned on the lifting path of the bolt (2) and the mechanical switch (5).

2. The elevator positioning and protecting device according to claim 1, further comprising an optical sensing assembly (9), wherein the optical sensing assembly (9) is fixedly connected to the mounting base (1), and the optical sensing assembly has an upper sensing area and a lower sensing area, and the sensing areas are distributed on the upper side and the lower side of the mechanical switch (5); the optical induction component only executes induction when the elevator car opens the door, the induction area is used for induction limiting plate (3), and the induction area senses when limiting plate (3), the elevator car can be controlled to stop.

3. The elevator positioning and protection device of claim 2, further comprising: response locating component (6), fixed connection is in on mount pad (1) for the top and the below of every floor of response limiting plate (3) work as response locating component (6) sense the top and the below of every floor simultaneously during limiting plate (3), can control elevator car and stop.

4. The elevator positioning and protection device according to claim 1, characterized in that the mounting base (1) is provided with a sliding rail (12), and the bolt (2) is mounted on the sliding rail (12) through a sliding block (22).

5. The elevator positioning and protection device of claim 4, wherein the drive device comprises:

the traction rope (41) is fixedly connected with the bolt (2);

a pulley (42) arranged on the mounting base (1) and used for guiding the traction rope (41);

the traction machine is fixed with one end of the traction rope (41) and used for retracting the traction rope (41);

and the balancing weight (44) is fixed to the other end of the traction rope (41), and the balancing weight (44) is used for driving the plug pin (2) to be inserted into the insertion hole (111) when the traction rope (41) is released by the tractor.

6. The elevator positioning and protection device of claim 3, wherein the inductive positioning assembly is located on the upper and lower sides of the optical sensing assembly; the mounting seat (1) is vertically and fixedly provided with a sensor mounting plate (7), and the sensor mounting plates (7) are distributed on the left side and the right side of the limiting plate (3); the sensor mounting panel (7) the top and the lower extreme still fixed mounting have limit travel switch (8), limit travel switch (8) are used for controlling elevator car and stop when touching the top or the bottom of elevator well.

7. Elevator positioning and protection device according to any of claims 1-5, characterized by the fact that the fixed plates (11) are distributed on the left and right sides of the limit plate (3).

8. The elevator positioning and protection device according to claim 6, characterized in that the optical sensing assembly (9) is an upper and a lower sets of grating sensors (91, 92), and the sensing and positioning assembly is an upper and a lower sets of infrared sensors (61, 62).

9. The elevator positioning and protection device according to claim 8, characterized in that the infrared sensor (61, 62) comprises an infrared generator (611, 621) provided on the sensor mounting plate (7) of one side and an emitting plate (612, 622) provided on the sensor mounting plate (7) of the other side.

10. Elevator positioning and protection device according to any of claims 1-5, characterized in that the upper and lower limit plates (3) at each floor are fixedly connected by means of a reinforcement bar (31) so that the upper limit plate (3), the reinforcement bar (31), the lower limit plate (3) and the side wall of the elevator shaft at each floor form a closed frame or ring.

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