CN215047866U

CN215047866U - Levelness adjusting device of elevator car and elevator

Info

Publication number: CN215047866U
Application number: CN202120892697.3U
Authority: CN
Inventors: 宋欣; 邢雷杰; 陈佳奇; 朱皓
Original assignee: Schindler China Elevator Co Ltd
Current assignee: Schindler China Elevator Co Ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-12-07
Anticipated expiration: 2031-04-27

Abstract

The present disclosure provides a levelness adjusting device of an elevator car and an elevator, wherein the elevator car is mounted on a bottom beam of a car frame. The levelness adjusting device comprises a gas supply unit, N height control valves and N air springs. Wherein N of the height control valves are configured to be installed between a bottom of the elevator car and the bottom beam, N being an integer greater than or equal to 1, wherein each of the height control valves includes a first input and a first output, the first input communicating with the gas supply unit. The first output end is communicated with the first input end. N of the air springs are configured to be mounted between a bottom of the elevator car and the bottom beam, wherein a top of each of the air springs supports the bottom of the elevator car, each of the air springs including a second input in communication with the first output.

Description

Levelness adjusting device of elevator car and elevator

Technical Field

The present disclosure relates to the field of elevator technology, and more particularly, to a levelness adjusting device for an elevator car and an elevator.

Background

Elevator installations are used in all aspects of production and living, for example in freight elevators, passenger elevators or motor vehicle elevators. Taking a cargo elevator or a large passenger-cargo elevator as an example, in the process of loading or unloading cargos or along with the change of the number of passengers in the process of getting on or off the elevator, the distributed load received in the elevator car is unbalanced, so that the levelness of the elevator car is changed, and the safety and the comfort of taking the elevator are influenced. At the same time, the frequency of re-leveling and the risk of accidental movement of the car may increase due to impacts during loading and unloading and due to changes in the levelness of the car.

In the related art, design redundancy may be considered in the design stage to improve the strength of the guide rail, the guide shoe, the car frame, the car, the shock pad and other components to prevent the change of the levelness of the car during the operation of the elevator. The levelness of the car can be adjusted by adding counterweight blocks during the installation phase.

In the course of implementing the disclosed concept, the inventors found that there are at least the following problems in the prior art:

the mode of adjusting the levelness passively by manually adjusting the levelness or improving the strength of the part improves the labor cost and the production cost.

SUMMERY OF THE UTILITY MODEL

In view of this, the disclosed embodiment provides an adjusting device capable of automatically adjusting the levelness of an elevator car, and an elevator.

An aspect of the disclosed embodiments provides a levelness adjusting apparatus of an elevator car in which the elevator car is mounted on a sill of a car frame. The levelness adjusting device comprises a gas supply unit, N height control valves and N air springs. Wherein N of the height control valves are configured to be installed between a bottom of the elevator car and the bottom beam, N being an integer greater than or equal to 1, wherein each of the height control valves includes a first input and a first output, the first input communicating with the gas supply unit. The first output end is communicated with the first input end. N of the air springs are configured to be mounted between a bottom of the elevator car and the bottom beam, wherein a top of each of the air springs supports the bottom of the elevator car, each of the air springs including a second input in communication with the first output.

According to an embodiment of the disclosure, N is an even number, each two of the air springs are configured to be symmetrically mounted between the bottom of the elevator car and the bottom beam, wherein the symmetrical mounting comprises a symmetrical mounting with respect to a bottom centerline of the elevator car. The device further comprises: and M differential pressure valves, wherein each differential pressure valve is communicated with the second input ends of every two symmetrical air springs, and M is equal to N/2.

According to an embodiment of the present disclosure, the gas supply unit includes a compressor, a pressure switch, and a reservoir. Wherein the compressor includes an air outlet. The pressure switch is electrically connected with the compressor, wherein the pressure switch comprises a pressure detection unit. The reservoir includes a third input and a second output. The third input end is communicated with the air outlet and the pressure detection unit. The second output end is communicated with the first input end.

According to an embodiment of the present disclosure, the gas supply unit further comprises a connection pipe, wherein the third input is in communication with the gas outlet through the connection pipe. At least a portion of the connecting conduit is provided as a hose.

According to an embodiment of the present disclosure, the apparatus further comprises a bracket, wherein the bracket is configured to be mounted on the bottom beam, wherein the N air springs are configured to be mounted on a bottom of the elevator car comprises: n of the air springs are configured to be mounted between the bracket and a bottom of the elevator car, wherein each of the air springs is configured to be mounted on a first end surface of the bracket, the first end surface being parallel to the bottom of the elevator car.

According to the embodiment of the disclosure, each height control valve and each air spring are arranged on the bracket in a one-to-one correspondence mode.

According to an embodiment of the disclosure, the N height control valves configured to be mounted at a bottom of the elevator car comprises: each of the height control valves is mounted on a second end face of the bracket, wherein the second end face is perpendicular to the bottom of the elevator car.

According to an embodiment of the disclosure, each of the height control valves further comprises a lever connected with a bottom of the elevator car.

According to an embodiment of the disclosure, N-4, wherein each of the height control valves and each of the air springs are configured to be mounted in a one-to-one correspondence to a foot region of a bottom of the elevator car.

Another aspect of the disclosed embodiments provides an elevator car. The elevator car comprises a car frame, an elevator car and the levelness adjusting device. Wherein the car frame includes a sill. The elevator car is mounted on the sill. N of the height control valves and N of the air springs are mounted between the bottom beam and the bottom of the elevator car.

One or more of the above-described embodiments may provide the following advantages or benefits: the problem of cost caused by passively realizing levelness adjustment through manually adjusting levelness or improving component strength can be at least partially solved, N height control valves and N air springs are installed at the bottom of the elevator car, and the height change of the bottom of the elevator car is detected by the height control valves, wherein the height control valves control the height of the air springs to change by using gas of a gas supply unit so as to automatically adjust the levelness of the elevator car.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:

fig. 1 schematically shows a schematic view of an elevator to which a levelness adjusting device according to an embodiment of the present disclosure may be applied;

fig. 2 schematically shows a partial schematic view in the a-direction of an elevator according to an embodiment of the disclosure;

FIG. 3 schematically illustrates a structural schematic view of a levelness adjustment device according to an embodiment of the present disclosure;

FIG. 4 schematically illustrates a structural view of a levelness adjusting apparatus according to another embodiment of the present disclosure; and

fig. 5 schematically illustrates an air path connection diagram of a levelness adjusting device according to an embodiment of the present disclosure.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

Where a convention analogous to "A, B or at least one of C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B or C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.).

The embodiment of the disclosure provides a levelness adjusting device of an elevator car and an elevator, wherein the elevator car is installed on a bottom beam of a car frame. The levelness adjusting device comprises a gas supply unit, N height control valves and N air springs. Wherein N height control valves are configured to be mounted between a bottom of the elevator car and the bottom beam, N being an integer greater than or equal to 1, wherein each height control valve comprises a first input and a first output, the first input being in communication with the gas supply unit. The first output end is communicated with the first input end. The N air springs are configured to be mounted between the bottom of the elevator car and the bottom beam, wherein a top of each air spring supports the bottom of the elevator car, each air spring including a second input in communication with the first output.

By utilizing the levelness adjusting device disclosed by the embodiment of the disclosure, N height control valves and N air springs are installed at the bottom of an elevator car. The height control valve can be used for detecting the bottom height change of the elevator car, namely, the levelness of the elevator car is actively adjusted through the air spring according to the variable load working condition of the car, and the car is kept at the set height. Therefore, the eccentric design redundancy of parts such as the guide rail, the guide shoe and the like can be reduced, the frequency of re-leveling is reduced, and the cost is reduced.

Fig. 1 schematically shows a schematic view of an elevator 100 to which a levelness adjusting device 130 may be applied according to an embodiment of the present disclosure. Fig. 2 schematically shows a partial schematic view of the a direction of an elevator 100 according to an embodiment of the disclosure. It should be noted that fig. 1 is only an example of an elevator car to which the embodiments of the present disclosure may be applied to help those skilled in the art understand the technical content of the present disclosure, but does not mean that the embodiments of the present disclosure may not have other forms, nor that the embodiments of the present disclosure may be used in other apparatuses, systems, environments, or scenarios.

As shown in fig. 1, the elevator car 120 includes a car frame 110, an elevator car 120, and a levelness adjusting device 130 as above. Among them, the car frame 110 includes a bottom beam 111 and a vertical beam 112. An elevator car 120 is mounted on the sill 111. N height control valves 131 (e.g., 1311 and 1312) and N air springs (e.g., 1321 and 1322) are mounted between the bottom beam 111 and the bottom 121 of the elevator car 120.

As shown in fig. 1 and 2, the levelness adjusting means 130 includes a gas supply unit 133, N height control valves 131, and N air springs 132. Wherein N height control valves 131 are configured to be mounted between the bottom 121 and the bottom beam 111 of the elevator car 120, N being an integer greater than or equal to 1, wherein each height control valve 131 comprises a first input 210 and a first output 220, the first input 210 being in communication with the gas supply unit 133. The first output 220 is in communication with the first input 210. The N air springs 132 are configured to be mounted between the bottom 121 of the elevator car 120 and the bottom beam 111, wherein the top of each air spring 132 supports the bottom 121 of the elevator car 120, each air spring 132 includes a second input 230, the second input 230 being in communication with the first output 220.

According to the embodiment of the present disclosure, for example, in the process of loading and unloading goods into and from the elevator car 120, the load applied to the elevator car 120 may be changed by the increase and decrease of the goods, and the bottom of the elevator car 120 may be inclined. Wherein the change in levelness is reflected in a change in height between the bottom 121 of the elevator car 120 and the bottom beam 111.

According to an embodiment of the present disclosure, the bottom 121 of the elevator car 120 is supported by the top of N air springs 132, wherein the air springs 132 can change height by intake and exhaust air. Thus, a change in the height of the air springs 132 causes a change in the bottom height of the elevator car 120, thereby allowing levelness adjustment of the elevator car 120. In addition, the air spring 132 has higher vibration isolation efficiency than a rubber vibration absorber in the related art, and can play a better vibration isolation effect on the elevator car 120.

As shown in fig. 1 and 2, each height control valve 131 is mounted on a bracket 140 in one-to-one correspondence with each air spring 132. Taking the height control valve 1311 as an example, the height control valve 1311 is installed at the bottom of the car, and can timely complete the air intake or exhaust operation of the air spring 1321 by dynamically sensing the height of the bottom of the elevator car 120.

As shown in fig. 1 and 2, each height control valve 131 further includes a lever 150, the lever 150 being connected to the bottom of the elevator car 120.

According to an embodiment of the present disclosure, as the height of the bottom of the elevator car 120 changes, a change in the operating rod 150 connected thereto is caused therewith. The height control valve 131 detects a change in the bottom height of the elevator car 120 through a change in the operating lever 150. When the bottom of the elevator car 120 is at a predetermined height, indicating that the elevator car 120 meets the levelness requirement, the position of the operating lever 150 is at the initial position, so that the first input 210 and the first output 220 of the height control valve 131 are both in the closed state and the air spring 132 is neither inflated nor deflated.

According to an embodiment of the disclosure, when the height control valve 131 detects a change in the height of the bottom 121 of the elevator car 120. For example, the height of the elevator car 120 becomes small and is inclined downward with respect to the initial levelness, the height control valve 131 supplies the air of the air supply unit 133 to the air spring 132 through the second input terminal 230 so that the air spring 132 supports the elevator car 120 to adjust the levelness of the elevator car 120.

According to an embodiment of the present disclosure, the height control valve 131 may further include a vent, for example, the height of the elevator 100 becomes larger, and is inclined upward with respect to the initial levelness, and then the height control valve 131 controls the air spring 132 to discharge air from the second input 230 and then discharge the air through the vent, so that the air spring 132 is lowered in height to adjust the levelness of the elevator car 120.

According to the embodiment of the disclosure, when heavy loading and unloading devices such as an oil pressure trailer, an electric forklift and the like enter and exit the car, because the front moving roller and the rear moving roller sequentially apply loads to local areas of landing doors and car door sills, the frequency of re-leveling and the risk of accidental movement of the car are increased.

By using the levelness adjusting device 130 of the embodiment of the present disclosure, the height change of different positions of the bottom 121 of the elevator car 120 can be dynamically detected by using the height control valve 131, then the height of the air spring 132 is actively adjusted, so as to adjust the height of the bottom 121 of the elevator car 120, and finally, the levelness of the elevator car 120 is actively adjusted according to the load changing working condition of the entering and exiting elevator car 120, thereby reducing the eccentric design redundancy of parts such as guide rails and guide shoes, improving the stress condition of landing doors and car sills, and reducing the frequency of re-leveling and the risk of accidental movement of the elevator car 120.

As shown in fig. 1 and 2, the levelness adjusting apparatus further includes a bracket 140, wherein the bracket 140 is configured to be mounted on the bottom beam 111, wherein the N air springs 132 are configured to be mounted on the bottom of the elevator car 120, including: the N air springs 132 are configured to be mounted between the bracket 140 and the bottom of the elevator car 120, wherein each air spring 132 is configured to be mounted on a first end face 141 of the bracket 140, the first end face 141 being parallel to the bottom of the elevator car 120.

If height control valve 131 and air spring 132 are mounted directly on bottom beam 111, according to embodiments of the present disclosure, substantial modifications to bottom beam 111 may be required to meet the mounting requirements. By installing the bracket 140 on the bottom beam 111, the bottom beam 111 can be prevented from being modified, so that the device can be quickly adapted to the installation environment of the existing elevator car 120, and the levelness adjusting device 130 can be quickly put into service.

As shown in fig. 1 and 2, each height control valve 131 is mounted on a second end 142 of the bracket 140, wherein the second end 142 is perpendicular to the bottom 121 of the elevator car 120.

According to an embodiment of the present disclosure, the height control valve 131 may detect a height change of the bottom 121 of the elevator car 120 through a joystick, and the height of the height control valve 131 itself as a part is fixed as a whole. Therefore, the height control valve 131 is mounted on the second end surface 142 of the bracket 140 without causing an obstruction in the process of changing the height of the air spring 132, and the mounting space on the bracket 140 can be utilized reasonably.

Fig. 3 schematically illustrates a structural view of a levelness adjusting apparatus 300 according to an embodiment of the present disclosure. Wherein the levelness adjusting means 300 is an embodiment of the levelness adjusting means 130.

As shown in fig. 3, the levelness adjusting apparatus 300 includes a gas supply unit 310, N height control valves 320 (e.g., 321, 322, 323, and 324), and N air springs 330 (e.g., 331, 332, 333, and 334). Wherein N height control valves 320 are configured to be mounted at the bottom 371 of the elevator car 370, N being an integer greater than or equal to 1, wherein, with reference to the height control valves 321, each height control valve 320 comprises a first input 3211 and a first output 3212, the first input 3211 communicating with the gas supply unit 310. The first output 3212 is in communication with the first input 3211. The N air springs 330 are configured to be mounted on the bottom 371 of the elevator car 370, wherein the top of each air spring 330 supports the bottom 371 of the elevator car 370, with reference to air spring 331, each air spring 330 includes a second input 3311, the second input 3311 being in communication with the first output 3212.

According to the embodiment of the present disclosure, referring to fig. 3, the gas supply unit 310 is installed above the elevator car 370, and the installation efficiency can be improved by reasonably using the top space of the elevator car 370.

According to an embodiment of the present disclosure, gas supply unit 310, height control valve 320, differential pressure valve 340, and air spring 330 may be connected therebetween by hard tubing 360. When the air spring 330 is inflated or deflated, air flows through the hard tube 360.

As shown in fig. 3, N is an even number and each two air springs 330 are configured to be symmetrically mounted between the bottom 371 and bottom beam of the elevator car 370, wherein symmetrically mounting includes symmetrically mounting relative to the bottom centerline 350 of the elevator car 370. The device still includes: m differential pressure valves 340 (e.g., 341, 342), wherein each differential pressure valve 340 communicates with the second input 3311 of each two symmetric air springs 330, M being equal to N/2.

According to the embodiment of the present disclosure, when the air spring 330 cannot smoothly intake or exhaust air, the height of the air spring is not changed, so that the elevator car 370 is inclined and the levelness cannot be adjusted. In the event of the above-described failure of the air springs 330, the pressure difference between the two air springs 330 symmetrical with respect to the center line 350 exceeds a preset value. Through the communication between each differential pressure valve 340 and the second input ends 3311 of every two symmetrical air springs 330, when the pressure difference between the air springs 330 on the two sides exceeds a preset value, the automatic communication realizes pressure equalization so as to avoid the accidental inclination of the car caused by the failure of the air springs 330.

As shown in fig. 3, where each height control valve 320 and each air spring 330 are configured to be mounted in a one-to-one correspondence to a foot region of the bottom 371 of the elevator car 370.

According to an embodiment of the present disclosure, one height control valve 320 and one air spring 330 are installed at four leg regions of the bottom 371 of the elevator car 370, respectively. During the levelness adjustment, the height change of each leg region is detected by each height control valve 320, thereby changing the height of the leg region using the height of each air spring 330. Wherein the process of adjusting the height of the four leg regions is the process of adjusting the levelness of the elevator car 370.

Fig. 4 schematically shows a structural view of a levelness adjusting apparatus 300 according to another embodiment of the present disclosure.

As shown in fig. 4, the levelness adjusting means 300 includes a gas supply unit 310, N height control valves 320, and N air springs 330. Wherein N height control valves 320 are configured to be mounted at the bottom 371 of the elevator car 370, N being an integer greater than or equal to 1, wherein each height control valve 320 comprises a first input 3211 and a first output 3212, the first input 3211 communicating with the gas supply unit 310. The first output 3212 is in communication with the first input 3211. The N air springs 330 are configured to be mounted on a bottom 371 of the elevator car 370, wherein a top of each air spring 330 supports the bottom 371 of the elevator car 370, each air spring 330 including a second input 3311, the second input 3311 in communication with a first output 3212.

According to the embodiment of the present disclosure, the gas supply unit 310 is installed at the bottom 371 of the elevator car 370, so that the bottom space of the elevator car 370 can be reasonably utilized, and the installation efficiency can be improved.

Fig. 5 schematically illustrates an air path connection diagram of the levelness adjusting device 300 according to an embodiment of the present disclosure.

As shown in fig. 5, the gas supply unit 310 includes a compressor, a pressure switch, and a reservoir. Wherein the compressor includes an outlet port 510. The pressure switch is electrically connected with the compressor, wherein the pressure switch comprises a pressure detection unit. The reservoir includes a third input 520 and a second output 530. The third input 520 is in communication with the air outlet 510 and the pressure sensing unit. The second output 530 is in communication with the first input 3211.

According to the embodiment of the disclosure, the start and stop of the compressor can be automatically controlled through the pressure switch. When the gas pressure in the air cylinder reaches the upper limit pressure preset by the pressure switch, the compressor automatically stops working. When the gas pressure in the air cylinder reaches the lower limit pressure preset by the pressure switch, the compressor is automatically started. The pressure switch detects the gas pressure in the air reservoir through the pressure detection unit.

According to an embodiment of the present disclosure, the gas supply unit 310 may further include a safety valve. The safety valve may be connected to the air outlet 510 of the compressor for detecting whether the pressure of the compressor is within a safe range to prevent the compressor from accidents.

According to an embodiment of the present disclosure, the gas supply unit 310 may further include a filter. The filter may filter the air delivered to the reservoir by the compressor to prevent excessive contaminants in the air from damaging the reservoir, the height control valve 320, and the air spring 330.

According to an embodiment of the present disclosure, the gas supply unit 310 may further include a check valve. The one-way valve allows the air in the reservoir to be delivered to the height control valve 320 (i.e., the height valve shown in fig. 5) and prevents the air from flowing back, i.e., prevents the air from returning from the height control valve 320 to the reservoir.

As shown in fig. 5, the gas supply unit 310 further includes a connection pipe 540, wherein the third input terminal 520 communicates with the gas outlet 510 through the connection pipe 540. At least a portion of the connection pipe 540 is provided as a hose.

According to embodiments of the present disclosure, the compressor may be connected to the reservoir, for example, by hard tubing. And vibration is generated during the operation of the compressor. By providing at least a portion of the connecting conduit 540 as a hose, vibrations generated by the compressor are prevented from being transmitted to the reservoir, and thus to the air springs 330, the height control valve 320, etc., and from being transmitted to the elevator car 370.

Those skilled in the art will appreciate that various combinations and/or combinations of features recited in the various embodiments and/or claims of the present disclosure can be made, even if such combinations or combinations are not expressly recited in the present disclosure. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present disclosure may be made without departing from the spirit or teaching of the present disclosure. All such combinations and/or associations are within the scope of the present disclosure.

The embodiments of the present disclosure have been described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described separately above, this does not mean that the measures in the embodiments cannot be used in advantageous combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the present disclosure, and such alternatives and modifications are intended to be within the scope of the present disclosure.

Claims

1. A levelness adjusting device of an elevator car, characterized in that the elevator car is mounted on a bottom beam (111) of a car frame (110), wherein the levelness adjusting device comprises:

a gas supply unit (133);

n height control valves (131), wherein N height control valves (131) are configured to be mounted between a bottom (121) of the elevator car (120) and the bottom beam (111), N being an integer greater than or equal to 1, wherein each height control valve (131) comprises:

a first input (210) in communication with the gas supply unit (133);

a first output (220) in communication with the first input (210);

n air springs (132), wherein the N air springs (132) are configured to be mounted between a bottom (121) of the elevator car (120) and the bottom beam (111), wherein a top of each air spring (132) supports the bottom (121) of the elevator car (120), each air spring (132) comprising:

a second input (230) in communication with the first output (220).

2. The levelness adjusting apparatus according to claim 1, wherein N is an even number,

each two of the air springs (330) are configured to be symmetrically mounted between a bottom (371) of the elevator car (370) and the bottom beam, wherein the symmetrical mounting includes a symmetrical mounting relative to a bottom centerline (350) of the elevator car (370);

the device further comprises:

m differential pressure valves (340), wherein each differential pressure valve (340) is communicated with the second input end (3311) of each two symmetrical air springs (330), and M is N/2.

3. The levelness adjusting apparatus according to claim 1, wherein the gas supply unit comprises:

a compressor comprising an outlet (510);

the pressure switch is electrically connected with the compressor, and comprises a pressure detection unit;

an air reservoir, wherein the air reservoir comprises:

a third input (520) in communication with the air outlet (510) and the pressure detection unit;

a second output (530) in communication with the first input (3211).

4. The levelness adjusting apparatus according to claim 3, wherein the gas supply unit further comprises:

a connecting duct (540), wherein the third input (520) communicates with the air outlet (510) through the connecting duct (540);

wherein at least a part of the connecting duct (540) is provided as a hose.

5. The levelness adjustment device of claim 1, further comprising a bracket (140), wherein the bracket (140) is configured to be mounted on the bottom beam (111), wherein the N air springs (132) are configured to be mounted between a bottom (121) of the elevator car (120) and the bottom beam (111) comprises:

the N air springs (132) are configured to be mounted between the bracket (140) and a bottom of the elevator car (120), wherein each air spring (132) is configured to be mounted on a first end surface (141) of the bracket (140), the first end surface (141) being parallel to the bottom of the elevator car (120).

6. The levelness adjusting apparatus according to claim 5, further comprising:

each height control valve (131) and each air spring (132) are arranged on the bracket (140) in a one-to-one correspondence mode.

7. The levelness adjusting apparatus according to claim 6, wherein the N number of the height control valves (131) configured to be installed between a bottom (121) of the elevator car (120) and the bottom beam (111) comprises:

each of the height control valves (131) is mounted on a second end face (142) of the bracket (140), wherein the second end face (142) is perpendicular to the bottom of the elevator car (120).

8. A levelness adjusting apparatus according to claim 1, wherein each of the height control valves (131) further comprises:

a lever (150) connected to a bottom of the elevator car (120).

9. The levelness adjusting apparatus according to claim 1,

n-4, wherein each height control valve (131) and each air spring (132) are configured to be mounted in a one-to-one correspondence to a foot region of a bottom (121) of the elevator car (120).

10. An elevator (100), characterized by comprising:

a car frame (110) including a bottom beam (111);

an elevator car (120), wherein the elevator car (120) is mounted on the bottom beam (111);

the levelness adjusting device (130) according to any one of claims 1 to 9, wherein N of the height control valves (131) and N of the air springs (132) are installed between the bottom beam (111) and the bottom (121) of the elevator car (120).