An operation auxiliary mechanism for ensuring stable lifting of elevator

Abstract

The present invention relates to the field of elevator technology, and specifically to an operation auxiliary mechanism for ensuring stable lifting of an elevator, comprising an elevator car, a connecting seat being installed on the top of the elevator car, leveling devices being installed on both the left and right sides of the elevator car, the leveling devices on both the left and right sides being mirror-imaged and installed on the left and right side walls of the elevator car, the leveling devices comprising a transmission frame and a movable frame, fixed plates being installed on the upper and lower ends of the transmission frame, a transmission screw being passed through between the fixed plates at the upper and lower ends, the transmission screw being a bidirectional threaded rod with the surface threads of the left and right sections being in opposite directions, a transmission sleeve being installed on both the left and right sections of the transmission screw, a fixed seat being installed on the outer side wall of the movable frame, a transmission connecting rod being provided between the transmission sleeve and the fixed seat. The present invention drives the movable frame to expand outward through threaded transmission, thereby driving the pulley to engage with the track in the inner cavity of the elevator shaft, thereby maintaining the left and right limits during the operation of the elevator car.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an operation auxiliary mechanism for ensuring stable lifting of an elevator. Background Art

[0002] Traction elevators are common vertical lifts, commonly used in large commercial buildings and office buildings. Compared to hydraulic elevators, they offer advantages such as higher lift heights, greater acceleration, and faster lift times, resulting in a wide range of applications. With the development of modern society, people's expectations for traction elevators are also increasing. During operation, a traction elevator uses a leveling device to reach a specific floor. This device detects the leveling and applies the brakes. However, this braking system can sometimes brake too quickly, lacking a buffer and resulting in poor stability. Furthermore, if the braking system malfunctions, the elevator may stop unsteadily, unevenly, or inaccurately.

[0003] A Chinese patent (authorization publication number: CN205892431U) discloses a lifting and stable elevator, in which a telescopic device and an auxiliary support device are connected to the outer wall of the car to assist in the stability of the elevator operation; however, the single telescopic device and the connection with the outside of the elevator shaft have certain fluctuations due to the telescopic structure, especially the spring telescopic structure used in the application, and therefore cannot fully and effectively maintain the stability of the elevator. Summary of the Invention

[0004] The object of the present invention is to provide an operation auxiliary mechanism for ensuring stable lifting and lowering of an elevator, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An operation auxiliary mechanism for ensuring stable lifting of an elevator, comprising an elevator car, a connecting seat installed on the top of the elevator car, leveling devices installed on the left and right sides of the elevator car, a buffer chamber provided at the bottom of the elevator car, two tracks provided on the connecting seat and arranged in a left-right mirror image with the center line of the elevator car as the axis, a steel wire rope connected to the connecting seat, a first fixed seat and a second fixed seat respectively installed on the connecting seat, a fixed pulley and a changing wheel respectively installed on the first fixed seat and the second fixed seat, the steel wire rope passes vertically downward through the fixed pulley and is then changed in direction by the changing wheel to be pulled vertically upward The leveling devices on the left and right sides are installed in a mirror-image manner on the left and right side walls of the elevator car. The leveling device includes a transmission frame and a movable frame. Fixed plates are installed on the upper and lower ends of the transmission frame. A transmission screw is passed through the fixed plates at the upper and lower ends. The transmission screw is a bidirectional threaded rod and the directions of the surface threads of the left and right sections are opposite. A transmission sleeve is installed on the left and right sections of the transmission screw. A fixed seat is installed on the outer wall of the movable frame. A transmission connecting rod is provided between the transmission sleeve and the fixed seat. A number of wheel seats are installed on the outer wall of the movable frame, and pulleys are installed on the wheel seats.

[0007] As a further solution of the present invention: a locking sleeve is provided between the wheel seat and the movable frame for fixed installation.

[0008] As a further solution of the present invention: a limiting groove is provided on the inner side wall of the transmission frame, the transmission sleeve is connected to the limiting block via a connecting block, and the limiting block is embedded in the limiting groove.

[0009] As a further solution of the present invention: telescopic sleeve rods are installed at the upper and lower ends of the transmission frame and the movable frame to connect them.

[0010] As a further solution of the present invention: a limiting sleeve is installed on the top of the connecting seat, the steel wire rope passes through the limiting sleeve, the inner cavity of the limiting sleeve is filled with a torsion spring, the torsion spring is wound around the steel wire rope, an adjusting disk is installed at the bottom of the limiting sleeve, the top end of the steel wire rope is installed on the top of the inner cavity of the limiting sleeve, and the bottom end of the steel wire rope is connected to the adjusting disk.

[0011] As a further solution of the present invention: a counterweight block is installed on the bottom plane of the buffer cavity, a limiting sleeve is installed on the top plate of the buffer cavity, a fixed seat is installed on the bottom plane of the buffer cavity, a limiting sleeve is installed on the upper plane of the buffer cavity, a telescopic rod is installed on the fixed seat, the telescopic rod is passed through the limiting sleeve, a buffer spring is wound on the telescopic rod, one end of the buffer spring is fixed on the limiting sleeve, and the other end of the buffer spring is fixed on the fixed seat.

[0012] As a further solution of the present invention: a shock-absorbing pad is provided at the bottom of the fixing seat.

[0013] As a further solution of the present invention: a curved rod is connected between the fixing seats at the left and right ends, the top of the curved rod is fixedly connected to the upper plane of the buffer cavity through a vertical rod, and an extrusion spring is installed on the curved rod, and the extrusion spring is squeezed between the fixing seats.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The torsion spring can be twisted through the adjusting disk. The deformation force generated by the torsion of the spring squeezes the wire rope, thereby keeping the wire rope in a taut state, thereby keeping the wire rope in a vertical state at all times.

[0016] 2. The movable frame is driven to expand outward through threaded transmission, thereby driving the pulley to engage with the track in the inner cavity of the elevator shaft and maintain the left and right limits when the elevator car is running; this application changes the expansion distance of the movable frame through threaded transmission, so as to meet the needs of elevator shafts of different sizes.

[0017] Third, a spring buffer mechanism at the bottom of the elevator car cushions the forces exerted by people inside the elevator, providing a shock-absorbing effect and further maintaining stability. The curved rod structure also diverts some vertical forces to the horizontal, and the extrusion spring mechanism cushions the left and right horizontal forces. Furthermore, because the elevator's left and right positions are limited, the impact on its stability is minimized, achieving a three-dimensional force-reducing effect.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are incorporated into and constitute a part of the specification to illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application. These drawings and the accompanying description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the connecting seat in the present invention.

[0022] Figure 3 It is a structural schematic diagram of the leveling device in the present invention.

[0023] Figure 4 Schematic diagram of the structure of the buffer cavity in the present invention.

[0024] Figure 5This is a top-down view of the connection between the torsion spring and the steel wire rope in the present invention.

[0025] In the figure: 1- elevator car, 2- connecting seat, 21- outer shell, 22- steel wire rope, 23- first fixed seat, 24- fixed pulley, 25- second fixed seat, 26- changing wheel, 27- limiting sleeve, 28- torsion spring, 29- adjusting disk, 3- leveling device, 31- transmission frame, 32- fixed plate, 33- transmission screw, 34- transmission sleeve, 35- transmission connecting rod, 36- telescopic sleeve rod, 37- limiting groove, 38- limiting block, 41- movable frame, 42- fixed seat, 43- wheel seat, 44- pulley, 45- locking sleeve, 5- buffer chamber, 51- counterweight, 52- limiting sleeve, 53- fixed seat, 54- telescopic rod, 55- buffer spring, 56- shock pad, 57- curved rod, 58- extrusion spring. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0027] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1:

[0028] See also Figure 1 and Figure 2 、 Figure 5 , an operation auxiliary mechanism for ensuring stable lifting of an elevator, comprising an elevator car 1, a connecting seat 2 is installed on the top of the elevator car 1, a leveling device 3 is installed on the left and right sides of the elevator car 1, a buffer chamber 5 is provided at the bottom of the elevator car 1, the connecting seat 2 is provided with two lanes and is arranged in a left and right mirror image with the center line of the elevator car 1 as the axis, the connecting seat 2 is externally connected to a steel wire rope 22, a first fixing seat 23 and a second fixing seat 25 are respectively installed on the connecting seat 2, and a fixed seat 23 and a second fixing seat 25 are respectively installed on the first fixing seat 23 and the second fixing seat 25. The pulley 24 and the changing wheel 26, the wire rope 22 passes vertically downward through the fixed pulley 24 and is then changed in direction by the changing wheel 26 to be pulled vertically upward. A limiting sleeve 27 is installed on the top of the connecting seat 2, and the wire rope 22 passes through the limiting sleeve 27. The inner cavity of the limiting sleeve 27 is filled with a torsion spring 28, and the torsion spring 28 is wound around the wire rope 22. An adjusting disk 29 is installed at the bottom of the limiting sleeve 27. The top end of the wire rope 22 is installed on the top of the inner cavity of the limiting sleeve 27, and the bottom end of the wire rope 22 is connected to the adjusting disk 29.

[0029] The elevator car 1 is connected to a starting device for suspension through a steel wire rope 22. The steel wire rope 22 passes vertically downward through a fixed pulley 24 and is then changed in direction by a changing wheel 26 to be pulled vertically upward, thereby achieving a smooth steering effect. A limit sleeve 27 is provided at the suspended end of the steel wire rope. A torsion spring 28 in the inner cavity of the limit sleeve 27 is wound around the surface of the steel wire rope 22. The deformation force generated by the torsion of the spring squeezes the steel wire rope 22, thereby keeping the steel wire rope 22 in a taut state. The torsion spring 28 can be twisted by the adjusting disk 29 to adjust the deformation condition of the torsion spring 28, thereby adjusting the tension of the steel wire rope 22.

[0030] See also Figure 1 and Figure 3 The leveling devices 3 on the left and right sides are mirror-imaged and mounted on the left and right side walls of the elevator car 1. The leveling devices 3 include a transmission frame 31 and a movable frame 41. Fixed plates 32 are mounted on the upper and lower ends of the transmission frame 31. A transmission screw 33 is inserted between the upper and lower fixed plates 32. The transmission screw 33 is a bidirectional threaded rod with the threads on the left and right sections facing opposite directions. A transmission sleeve 34 is mounted on each section of the transmission screw 33. A fixed seat 42 is mounted on the outer wall of the movable frame 41. A transmission connecting rod 35 is provided between the transmission sleeve 34 and the fixed seat 42. Several wheel seats 43 are mounted on the outer wall of the movable frame 41. Pulleys 44 are mounted on each wheel seat 43. A locking sleeve 45 is provided between the wheel seat 43 and the movable frame 41 for secure installation.

[0031] The leveling device 3 is used to maintain the left and right stability of the elevator car 1. A driving motor is installed at the bottom of the transmission frame 31, and the transmission screw 33 is connected to the motor shaft of the driving motor; during installation, the driving motor drives the transmission screw 33 to move. Since the transmission screw 33 is a bidirectional threaded rod, the transmission sleeve 34 moves toward the upper and lower sides along the transmission screw 33, and then supports the movable frame 41 to move outward through the transmission connecting rod 35, so that the pulley 44 is embedded in the track of the inner cavity of the elevator shaft; the present application sets a mirror-image leveling device 3, which drives the movable frame 41 to expand outward through threaded transmission, thereby driving the pulley 44 to be wedged and installed with the track of the inner cavity of the elevator shaft, maintaining the left and right limit when the elevator car is running; the present application changes the expansion distance of the movable frame 41 through threaded transmission, so as to meet the needs of elevator shafts of different sizes.

[0032] The inner sidewall of the transmission frame 31 is provided with a limit slot 37. The transmission sleeve 34 is connected to a limit block 38 via a connecting block. The limit block 38 engages within the limit slot 37. This limits the movement of the transmission sleeve 34, maintaining its stability during operation. Telescopic rods 36 are installed at the upper and lower ends of the transmission frame 31 and the movable frame 41, connecting them to each other and ensuring that the movable frame 41 can be deployed horizontally. Example 2:

[0033] See also Figure 1 and Figure 4 This embodiment is a further optimization of the first embodiment. On this basis, a counterweight block 51 is installed on the bottom plane of the buffer cavity 5. The counterweight block 51 is a standard configuration of the elevator car 1 to ensure that the center of gravity of the elevator car 1 is located at the bottom.

[0034] A limiting sleeve 52 is mounted on the top plate of the buffer chamber 5, a fixing seat 53 is mounted on the bottom plane of the buffer chamber 5, a limiting sleeve 52 is mounted on the upper plane of the buffer chamber 5, a telescopic rod 54 is mounted on the fixing seat 53, the telescopic rod 54 is inserted into the limiting sleeve 52, and a buffer spring 55 is wound around the telescopic rod 54, one end of the buffer spring 55 is fixed to the limiting sleeve 52, and the other end of the buffer spring 55 is fixed to the fixing seat 53. The spring buffer mechanism buffers the force exerted by people in the elevator cavity, achieving a shock-absorbing effect and further maintaining its stability. A shock-absorbing pad 56 is provided at the bottom of the fixing seat 53, which further achieves a shock-absorbing and buffering effect.

[0035] A curved rod 57 is connected between the left and right fixing seats 53. The top end of the curved rod 57 is fixedly connected to the upper surface of the buffer chamber 5 via a vertical rod 56. A compression spring 58 is mounted on the curved rod 57 and squeezed between the fixing seats 53. The curved rod structure design diverts part of the vertical force to the horizontal force, and the compression spring 58 then buffers the horizontal left and right forces. At the same time, because the left and right directions of the elevator are in a limited state, the impact on the elevator's stability is relatively small, thereby achieving a three-dimensional force unloading and reduction effect.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An operation auxiliary mechanism for ensuring stable lifting and lowering of an elevator, comprising: An elevator car (1), wherein a connecting seat (2) is installed on the top of the elevator car (1), a leveling device (3) is installed on both the left and right sides of the elevator car (1), a buffer chamber (5) is provided at the bottom of the elevator car (1), the connecting seat (2) is provided with two lanes and arranged in a left-right mirror image with the center line of the elevator car (1) as the axis, the connecting seat (2) is externally connected to a steel wire rope (22), a first fixed seat (23) and a second fixed seat (25) are respectively installed on the connecting seat (2), a fixed pulley (24) and a change-direction wheel (26) are respectively installed on the first fixed seat (23) and the second fixed seat (25), the steel wire rope (22) is vertically downward The elevator car (1) is pulled vertically upward after passing through the fixed pulley (24) and then changed in direction by the changing wheel (26). The leveling device (3) on the left and right sides is installed in a mirror image on the left and right side walls of the elevator car (1). The leveling device (3) includes a transmission frame (31) and a movable frame (41). The upper and lower ends of the transmission frame (31) are both installed with fixed plates (32). A transmission screw (33) is passed through the fixed plates (32) at the upper and lower ends. The transmission screw (33) is a bidirectional threaded rod and the directions of the surface threads of the upper and lower sections are opposite. The upper and lower sections of the transmission screw (33) are both installed with transmission sleeves (34). The outer wall of the movable frame (41) is provided with a plurality of fixed plates (32). A third fixed seat (42) is installed, a transmission connecting rod (35) is provided between the transmission sleeve (34) and the third fixed seat (42), a plurality of wheel seats (43) are installed on the outer wall of the movable frame (41), and pulleys (44) are installed on the wheel seats (43), a counterweight (51) is installed on the bottom plane of the buffer chamber (5), a limiting sleeve (52) is installed on the top plate of the buffer chamber (5), a fixed seat (53) is installed on the bottom plane of the buffer chamber (5), a limiting sleeve (52) is installed on the upper plane of the buffer chamber (5), a telescopic rod (54) is installed on the fixed seat (53), and the telescopic rod (54) is installed on the bottom plane of the buffer chamber (5). ) is passed through the limiting sleeve (52), a buffer spring (55) is wound on the telescopic rod (54), one end of the buffer spring (55) is fixed on the limiting sleeve (52), and the other end of the buffer spring (55) is fixed on the fixing seat (53), and a shock-absorbing pad (56) is provided at the bottom of the fixing seat (53), and a curved rod (57) is connected between the fixing seats (53) at the left and right ends, and the top end of the curved rod (57) is fixedly connected to the upper plane of the buffer cavity (5) through a vertical rod (59), and an extrusion spring (58) is installed on the curved rod (57), and the extrusion spring (58) is squeezed between the fixing seats (53).

2. The operation auxiliary mechanism for ensuring stable lifting of an elevator according to claim 1, characterized in that: A locking sleeve (45) is provided between the wheel seat (43) and the movable frame (41) for fixed installation.

3. The operation auxiliary mechanism for ensuring stable lifting of an elevator according to claim 1, characterized in that: A limiting groove (37) is provided on the inner side wall of the transmission frame (31), the transmission sleeve (34) is connected to the limiting block (38) via a connecting block, and the limiting block (38) is embedded in the limiting groove (37).

4. The operation auxiliary mechanism for ensuring stable lifting of an elevator according to claim 1, characterized in that: The transmission frame (31) and the movable frame (41) are both connected by telescopic sleeve rods (36) installed at the upper and lower ends.

Images