CN209777998U

CN209777998U - Car elevator overload protection device

Info

Publication number: CN209777998U
Application number: CN201920598882.4U
Authority: CN
Inventors: 孙磊; 陈士云; 赵振波
Original assignee: Dongxun Industry Co Ltd
Current assignee: Dongxun Industry Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2019-12-13
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a car elevator overload protection device relates to elevator technical field, specifically is including the elevator case, the mounting groove has been seted up to the inner diapire of elevator case, the inner diapire fixedly connected with supporting spring of mounting groove, the one end fixedly connected with footboard that the elevator case was kept away from to supporting spring, the middle part fixedly connected with of diapire switches on the post in the footboard, the middle part fixedly connected with fixed block of diapire in the mounting groove, the fixed slot has been seted up at the top of fixed block. This car elevator overload protection device through first control switch, second control switch, third control switch, switches on the cooperation setting between post, insulating post and the elevator case, and when a certain department control switch goes wrong, this protection device still can in time react, gives the police dispatch newspaper, and duplicate protection is not only safer, and the reaction is sensitive moreover, and measurement accuracy is high, has made powerful guarantee to the personal safety of taking personnel.

Description

Car elevator overload protection device

Technical Field

The utility model relates to an elevator technical field specifically is a car elevator overload protection device.

Background

the elevator is a vertical elevator taking a motor as power, a box-shaped nacelle is arranged on the elevator, the elevator is used for carrying people or goods in a multi-story building and also has a step type, a step plate is arranged on a track to continuously run, the elevator is commonly called an escalator or a moving sidewalk, along with the development of the society, the elevator is widely applied to the building, the safety problem of the elevator is more and more emphasized, the overload detection device used in the elevator industry at present mainly comprises an electromagnetic induction type and a mechanical type, and the two types of the overload detection devices directly measure the compression stroke of an overloaded car to determine whether the elevator is overloaded or not.

However, since the compression deformation of the elastic element after the car is overloaded is not very large, usually only a few millimeters, so the compression stroke of the conductive overload protection device is also only a few millimeters, and such a small measurement stroke usually results in the phenomena of low measurement accuracy and inaccurate weight measurement.

SUMMERY OF THE UTILITY MODEL

technical problem to be solved

Not enough to prior art, the utility model provides a car elevator overload protection device has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a car elevator overload protection device, includes the elevator case, the mounting groove has been seted up to the inner diapire of elevator case, the inner diapire fixedly connected with supporting spring of mounting groove, the one end fixedly connected with footboard that the elevator case was kept away from to supporting spring, the middle part fixedly connected with of diapire switches on the post in the footboard, the middle part fixedly connected with fixed block of diapire in the mounting groove, the fixed slot has been seted up at the top of fixed block, the inner wall of fixed slot is from last to first control switch of fixedly connected with and second control switch in proper order down, the top of elevator case is from a left side to the right side fixedly connected with third control switch and compression spring.

Optionally, one end of the compression spring, which is far away from the elevator cage, is fixedly connected with a cover plate, and the middle part of the upper surface of the cover plate is fixedly connected with a hook ring.

Optionally, the outer surface of the shackle is fixedly connected with a steel wire rope, and one side of the bottom of the cover plate is fixedly connected with an insulating column.

Optionally, one side of the inner wall of the elevator cage is fixedly connected with a first alarm and a second alarm from top to bottom in sequence.

Optionally, a third alarm is fixedly connected to the other side of the inner wall of the elevator cage.

Optionally, the compression spring is in a compressed state in a normal state, and the support spring is in a compressed state in a working state.

(III) advantageous effects

The utility model provides a car elevator overload protection device possesses following beneficial effect:

The overload protection device for the lift car elevator is characterized in that through the matching arrangement of the first control switch, the second control switch, the third control switch, the conducting column, the insulating column and the elevator cage, when too many people are on the pedal, the insulating column on the top is moved out of the third control switch, the third control switch is closed, the third alarm sounds, at the moment, the conducting column on the bottom is inserted into the first control switch to conduct the first control switch, so that the first alarm sounds to prompt passengers, if the number of people is increased continuously, the conducting column moves downwards continuously and is in contact with the second control switch to conduct the second control switch, so that the second alarm is started, when a certain control switch has a problem, the protection device can still react in time to give an alarm, double protection is realized, safety is improved, and reaction is sensitive, the measuring precision is high, and the personal safety of the passengers is powerfully guaranteed.

Drawings

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

FIG. 2 is a schematic sectional view of the present invention;

Fig. 3 is a schematic view of the front view structure of the present invention.

In the figure: 1. an elevator cage; 2. mounting grooves; 3. a support spring; 4. a pedal; 5. a conductive column; 6. a fixed block; 7. fixing grooves; 8. a first control switch; 9. a second control switch; 10. a third control switch; 11. a compression spring; 12. a cover plate; 13. a shackle; 14. a wire rope; 15. an insulating column; 16. a first alarm; 17. a second alarm; 18. and a third alarm.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: an overload protection device for a car elevator comprises an elevator cage 1, wherein one side of the inner wall of the elevator cage 1 is fixedly connected with a first alarm 16 and a second alarm 17 from top to bottom in sequence, the inner bottom wall of the elevator cage 1 is provided with an installation groove 2, the inner bottom wall of the installation groove 2 is fixedly connected with a supporting spring 3, one end of the supporting spring 3, which is far away from the elevator cage 1, is fixedly connected with a pedal 4, the middle part of the inner bottom wall of the pedal 4 is fixedly connected with a conduction column 5, the middle part of the inner bottom wall of the installation groove 2 is fixedly connected with a fixed block 6, the top of the fixed block 6 is provided with a fixed groove 7, the inner wall of the fixed groove 7 is fixedly connected with a first control switch 8 and a second control switch 9 from top to bottom in sequence, the top of the elevator cage 1 is fixedly connected with a third control switch 10 and a compression, one end of a compression spring 11 far away from an elevator cage 1 is fixedly connected with a cover plate 12, through the arrangement of the cover plate 12 and a shackle 13, the stress of a steel wire rope 14 can be more uniform and concentrated, the third control switch 10 can be protected as far as possible, sundries are prevented from falling and damaging the third control switch 10, and the service life of the device is prolonged, the shackle 13 is fixedly connected to the middle part of the upper surface of the cover plate 12, the steel wire rope 14 is fixedly connected to the outer surface of the shackle 13, an insulating column 15 is fixedly connected to one side of the bottom of the cover plate 12, a third alarm 18 is fixedly connected to the other side of the inner wall of the elevator cage 1, through the matching arrangement among a first control switch 8, a second control switch 9, the third control switch 10, a conduction column 5, the insulating column 15 and the elevator cage 1, when too many people exist on a pedal 4, the insulating column 15 at the top is moved, the third control switch 10 is closed, the third alarm 18 sounds, at the moment, the conduction column 5 at the bottom is inserted into the first control switch 8, the first control switch 8 is conducted, the first alarm 16 sounds, prompt is given to a passenger, if the number of the passengers is increased continuously, the conduction column 5 moves downwards continuously and is in contact with the second control switch 9, the second control switch 9 is conducted, the second alarm 17 is started, when a certain control switch goes wrong, the protection device can still react in time to give an alarm, double protection is achieved, safety is improved, reaction sensitivity is high, measurement accuracy is high, and strong guarantee is provided for personal safety of the passenger.

As an optimal technical solution of the utility model: the first control switch 8 controls a first alarm 16, the second control switch 9 controls a second alarm 17, and the third control switch 10 controls a third alarm 18.

In summary, when the overload protection device for the elevator car is used, through the matching arrangement of the first control switch 8, the second control switch 9, the third control switch 10, the conducting column 5, the insulating column 15 and the elevator car 1, when too many people are on the pedal 4, the insulating column 15 at the top is moved out of the third control switch 10, the third control switch 10 is closed, the third alarm 18 sounds, at the moment, the conducting column 5 at the bottom is inserted into the first control switch 8 to conduct the first control switch 8, so that the first alarm 16 sounds to prompt passengers, if the number of people is increased continuously, the conducting column 5 can move downwards continuously to be in contact with the second control switch 9 to conduct the second control switch 9, so that the second alarm 17 is started, when a control switch at a certain position has a problem, the overload protection device can still respond in time, the alarm is given, double protection is achieved, safety is improved, response is sensitive, measurement accuracy is high, and the personal safety of passengers is guaranteed powerfully.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

in the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, 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. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It is noted that in the present disclosure, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An overload protection device for a car elevator, which comprises an elevator cage (1), and is characterized in that: mounting groove (2) have been seted up to the inner diapire of elevator case (1), inner diapire fixedly connected with supporting spring (3) of mounting groove (2), the one end fixedly connected with footboard (4) of elevator case (1) are kept away from supporting spring (3), the middle part fixedly connected with of diapire switches on post (5) in footboard (4), the middle part fixedly connected with fixed block (6) of diapire in mounting groove (2), fixed slot (7) have been seted up at the top of fixed block (6), the inner wall of fixed slot (7) is from last to first control switch (8) and second control switch (9) of fixedly connected with in proper order down, the top of elevator case (1) is from a left side to the right side fixedly connected with third control switch (10) and compression spring (11) in proper order.

2. A car elevator overload protection apparatus as claimed in claim 1, wherein: one end fixedly connected with apron (12) of elevator case (1) are kept away from in compression spring (11), the middle part fixedly connected with shackle (13) of apron (12) upper surface.

3. A car elevator overload protection apparatus as claimed in claim 2, wherein: the outer surface of the shackle (13) is fixedly connected with a steel wire rope (14), and one side of the bottom of the cover plate (12) is fixedly connected with an insulating column (15).

4. A car elevator overload protection apparatus as claimed in claim 1, wherein: one side of elevator case (1) inner wall is from last to down fixedly connected with first siren (16) and second siren (17) in proper order.

5. A car elevator overload protection apparatus as claimed in claim 1, wherein: the other side of the inner wall of the elevator cage (1) is fixedly connected with a third alarm (18).

6. A car elevator overload protection apparatus as claimed in claim 1, wherein: the normal state of the compression spring (11) is a compression state, and the working state of the supporting spring (3) is a compression state.