Anti-falling safety braking device of car type elevator

Abstract

The anti-falling safety braking device comprises a fixing plate and a guide column, the guide column is fixedly installed on the bottom face of the fixing plate, a transverse column is arranged below the fixing plate, the guide column penetrates through the upper surface of the transverse column and is in sliding connection with the transverse column, and a tensioning mechanism is arranged on the upper surface of the fixing plate. The invention relates to the technical field of ladder safety braking devices. According to the anti-falling safety braking device of the car-type elevator, by arranging the tensioning mechanism, when the car-type elevator falls, the output end of the reduction gearbox drives the connecting shaft and the steel cable winch to rotate, the steel cable winch rotates reversely to lift the first-section steel cable and the second-section steel cable upwards so as to pull the elevator car upwards, and the bottom end of the second-section steel cable is fixedly connected with the compression spring; the compression spring and the second steel cable are fixed through the fastening bolt to form a closed loop, and the compression spring can be extruded when the first steel cable and the second steel cable are tensioned, so that the compression spring is deformed to generate reset elastic force to buffer impact generated during tensioning to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of elevator safety brake devices, in particular to an anti-falling safety brake device for a cabin elevator. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building, with its car running on at least two rigid rails that are perpendicular to the horizontal plane or inclined at an angle of less than 15° to the plumb line. There are also step-type ones, with the treads mounted on the tracks and running continuously, commonly known as escalators or moving walkways. Fixed lifting equipment that serves specified floors. A vertical lift has a car that runs between at least two rigid rails that are perpendicular or inclined at an angle of less than 15°. The size and structure of the car facilitate the entry and exit of passengers or the loading and unloading of goods. It is customary to use elevators as a general term for vertical transportation tools in buildings regardless of their driving method.

[0003] Current elevator brakes generally have overly complex structures, slow braking response speeds, and insufficient traction on the speed-limiting wheel rope, resulting in insufficient clamping force, inability to brake quickly, inaccurate speed measurement, and abnormal braking, causing the elevator car to fall abnormally, causing harm and damage to the elevator equipment and passengers.

[0004] For example, a kind of elevator safety brake device disclosed in the Chinese invention patent publication number CN103171942A includes: a connecting rod, a locking block, a guide plate with a guide groove, a detection switch and an electromagnet; one end of the connecting rod is hingedly connected to the car body, and the other end is hingedly connected to the locking block; the locking block is slidably connected to the guide groove; the detection switch is fixed on the car body and electrically connected to the elevator main controller; the electromagnet is electrically connected to the elevator main controller, and one end of the electromagnet is pinned to the connecting rod. The present invention can achieve safe braking of the elevator at any unreasonable speed, so that the safety brake device can achieve a two-way working mode that can work actively and passively, greatly improve the safety protection of the elevator, reduce the risk of the elevator car rushing to the top or squatting to the bottom, provide a strong guarantee for the safety of the elevator equipment and the personal safety of the passengers, and has application prospects.

[0005] The above device only articulates the car body through a simple connection method. If the car body falls, this method cannot better pull the car body upward to achieve a good braking purpose. The braking method when falling is relatively simple and does not necessarily have a good braking effect.

[0006] Therefore, we propose a car elevator anti-fall safety brake device to solve the above problems. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides an anti-falling safety brake device for a cabin elevator, which solves the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fall prevention safety brake device for a box elevator, comprising a fixed plate and a guide column, wherein the guide column is fixedly mounted on the bottom surface of the fixed plate, the guide columns are symmetrically distributed on both sides of the bottom surface of the fixed plate, a horizontal column is arranged below the fixed plate, the guide column passes through the upper surface of the horizontal column and is slidably connected with the horizontal column, a tensioning mechanism is arranged on the upper surface of the fixed plate, and a braking mechanism is arranged on the outer surface of the guide column; The braking mechanism includes a connecting unit and an adsorption unit. The connecting unit includes a fixed steel plate fixedly installed on one side of the outer surface of the horizontal column. The lower part of the outer surface of the fixed steel plate is fixedly connected to a limiting plate. A crossbeam is fixedly installed on one side of the outer surface of the limiting plate. A plug rod is bolted to one side of the upper surface of the crossbeam. The outer surface of the plug rod is movably connected to a brake rod. The adsorption unit includes a square plate, a hydraulic cylinder, a telescopic column, a connecting spring, a limit block, a connecting cylinder, a No. 1 mounting piece, a No. 2 mounting piece, a plate frame and an arc-shaped strong magnetic plate.

[0009] A further improvement of the technical solution of the present invention is that: the square plate is fixedly connected to one side of the outer surface of the brake rod, the hydraulic cylinder is fixedly connected to one side of the outer surface of the square plate, the telescopic column is connected to the output end of the hydraulic cylinder, the connecting spring is fixedly connected to the other end surface of the brake rod, the limit block is fixedly installed on one side of the upper surface of the brake rod, the connecting cylinder is fixedly connected to the upper surface of the limit block, one end of the connecting cylinder is fixedly connected to the other end of the connecting spring, the No. 1 mounting piece is fixedly installed on the upper surface of the brake rod, the No. 2 mounting piece is fixedly connected to the middle position of the upper surface of the brake rod, the plate frame is fixedly connected to one side of the outer surface of the brake rod through the No. 2 mounting piece and the No. 1 mounting piece, the arc-shaped strong magnetic plate is fixedly installed on one side of the outer surface of the plate frame, and the upper surface of the No. 2 mounting piece is fixedly connected with a round rod.

[0010] A further improvement of the technical solution of the present invention is that the tensioning mechanism includes a winding unit and a limiting unit, the winding unit includes a base plate fixedly installed on one side of the upper surface of the fixed plate, the upper surface of the base plate is fixedly installed with a driving motor, the output end of the driving motor is connected to a rotating disk, one end of the rotating disk is connected to a reduction gearbox, the output end of the reduction gearbox is connected to a connecting shaft, a steel cable winch is fixedly installed on one side of the outer surface of the connecting shaft, a section of steel cable is connected to the outer surface of the steel cable winch, the lower end of the section of steel cable is fixedly connected with a locking piece, the lower end of the locking piece is fixedly connected with two sections of steel cable, the lower ends of the two sections of steel cable are fixedly connected with a compression spring, and the lower end of the compression spring is fixedly installed with a fastening bolt.

[0011] A further improvement of the technical solution of the present invention is that: the limiting unit includes a mounting plate on one side of the upper surface of a fixing plate, a fixing plate is fixedly installed on the upper surface of the mounting plate, a No. 1 fixing piece is fixedly installed on the upper part of one side of the outer surface of the fixing piece, a No. 2 fixing piece is movably connected to one side of the outer surface of the No. 1 fixing piece, a mounting frame is fixedly installed on one end surface of the No. 2 fixing piece, and the inner wall of the mounting frame is connected to a limiting rod.

[0012] A further improvement of the technical solution of the present invention is that a fixing mechanism is provided on the bottom surface of the horizontal column, and the fixing mechanism includes a No. 1 connecting member fixedly installed on the bottom surface of the horizontal column, a No. 2 connecting member is fixedly installed on the bottom surface of the No. 1 connecting member, a connecting frame is fixedly installed on the bottom surface of the No. 2 connecting member, a fixing bolt is bolted on one side of the outer surface of the connecting frame, and a horizontal frame is fixedly connected with the fixing bolt, a No. 1 fastener is fixedly installed on one side of the outer surface of the horizontal frame, and a vertical rod is fixedly connected with the No. 1 fastener, a connecting plate is fixedly installed on the upper part of one side of the outer surface of the vertical rod, and an inclined support rod is fixedly installed on one side of the outer surface of the connecting plate.

[0013] A further improvement of the technical solution of the present invention is that an elevator car is fixedly installed on one side of the outer surface of the vertical rod, an upper slide rail is fixedly installed on the upper part of one side of the outer surface of the elevator car, and a lower slide rail is fixedly installed on the lower part of one side of the outer surface of the elevator car, a slide groove is provided on the surface of the lower slide rail and the bottom surface of the upper slide rail, and the elevator car door is slidably connected to the inner wall of the slide groove.

[0014] A further improvement of the technical solution of the present invention is that a No. 2 fastener is fixedly connected to the lower part of one side of the outer surface of the vertical rod, a connecting column is fixedly installed on the lower part of one side of the outer surface of the No. 2 fastener, a connecting ring is fixedly installed on one end surface of the connecting column, and the inner wall of the connecting ring is slidably connected to the outer surface of the guide column.

[0015] A further improvement of the technical solution of the present invention is that a steel cable through hole is passed through the middle position between the upper surface of the fixing plate and the upper surface of the horizontal column, and column holes are passed through both sides of the upper surface of the horizontal column.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a tensioning mechanism. When the cabin elevator falls, the driving motor is reversed to drive the rotating disk to rotate. The rotation of the rotating disk transmits power to the reduction box, and the output end of the reduction box drives the connecting shaft and the cable winch to rotate. The cable winch reverses and pulls one section of the steel cable and the second section of the steel cable upward, thereby pulling the elevator car upward. The cabin elevator is prevented from falling to a certain extent by tightening the one section of the steel cable and the second section of the steel cable. The bottom ends of the two sections of the steel cable are fixedly connected to the compression spring, which is fixed to the two sections of the steel cable by fastening bolts to form a closed loop. When the one section of the steel cable and the second section of the steel cable are tightened, the compression spring can be squeezed, so that the compression spring is deformed to generate a restoring elastic force to buffer the impact generated during the tightening to a certain extent, thereby preventing the one section of the steel cable and the second section of the steel cable from being subjected to excessive force.

[0017] The present invention provides a braking mechanism in which two oppositely distributed arc-shaped strong magnetic plates are used. The two arc-shaped strong magnetic plates attract each other. When the box elevator falls, the hydraulic cylinder can pull back the telescopic column in time. The telescopic column drives the tensioning spring to move, and pulls the brake rod on the other side to move toward the brake rod on one side. Under the auxiliary effect of the attraction between the two arc-shaped strong magnetic plates, the two brake rods can firmly clamp the guide column, thereby generating sufficient friction to force the box elevator to stop falling. The four brake rods distributed on both sides can improve the braking effect under the action of both sides, thereby improving the safety of the box elevator.

[0018] The present invention fixes a connecting piece on one side of the outer surface of the cross frame, and the connecting pieces distributed on both sides are fixedly connected to the oblique support rods at oblique angles, so that a triangular stable support is generated in the connection range, which is convenient for one section of steel cable and two sections of steel cable to pull the elevator car more stably, and can achieve better braking effect when pulling the elevator car. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a first-person structural diagram of the anti-fall safety brake device of a box elevator; Figure 2 It is a second perspective structural schematic diagram of the anti-fall safety brake device of the box elevator; Figure 3 A schematic diagram of the structure of an elevator car for an anti-fall safety brake device of a car-type elevator; Figure 4 It is a schematic diagram of the braking mechanism structure of the anti-fall safety braking device of the cabin elevator; Figure 5 It is a schematic diagram of the structure of the brake module of the anti-fall safety brake device of the cabin elevator; Figure 6 It is a schematic diagram of the tensioning mechanism structure of the anti-fall safety brake device of the cabin elevator; Figure 7This is a schematic diagram of the steel cable winch structure of the anti-fall safety brake device of the cabin elevator.

[0020] In the figure: 1, fixing plate; 2, guide column; 3, bottom plate; 301, driving motor; 302, rotating disk; 303, mounting plate; 304, fixing plate; 305, No. 1 fixing piece; 306, No. 2 fixing piece; 307, mounting frame; 308, limiting rod; 309, reduction box; 310, connecting shaft; 311, steel cable winch; 312, a section of steel cable; 313, locking piece; 314, two sections of steel cable; 315, compression spring; 316, fastening bolt; 4, cross column; 401, steel cable through hole; 402, column hole; 403, No. 1 connecting piece; 404, No. 2 connecting piece; 405, connecting frame; 406, fixing bolt; 407, cross frame; 408, No. 1 fastener; 409, vertical rod; 410, connecting piece; 411, oblique support rod; 412, elevator car; 413, upper slide rail; 414, elevator car door; 415, No. 2 fastener; 416, connecting column; 417, connecting ring; 418, lower slide rail; 419, slide groove; 5, fixed steel plate; 501, limit plate; 502, crossbeam; 503, plug rod; 504, brake rod; 505, square plate; 506, hydraulic cylinder; 507, telescopic column; 508, connecting spring; 509, limit block; 510, connecting cylinder; 511, No. 1 mounting piece; 512, No. 2 mounting piece; 513, plate frame; 514, arc-shaped strong magnetic plate; 515, round rod. DETAILED DESCRIPTION

[0021] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0022] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0023] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific examples below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0024] Reference Figure 1 - Figure 7 , the present invention provides three technical solutions: Embodiment 1: A fall prevention safety brake device for a box elevator comprises a fixed plate 1 and a guide column 2, wherein the guide column 2 is fixedly mounted on the bottom surface of the fixed plate 1, and the guide columns 2 are symmetrically distributed on both sides of the bottom surface of the fixed plate 1, and a transverse column 4 is arranged below the fixed plate 1, a steel cable through hole 401 is penetrated in the middle position between the upper surface of the fixed plate 1 and the upper surface of the transverse column 4, and column holes 402 are penetrated on both sides of the upper surface of the transverse column 4, the guide column 2 passes through the upper surface of the transverse column 4 and is slidably connected with the transverse column 4, a tensioning mechanism is arranged on the upper surface of the fixed plate 1, and a braking mechanism is arranged on the outer surface of the guide column 2; The braking mechanism includes a connecting unit and an adsorption unit. The connecting unit includes a fixed steel plate 5 fixedly installed on one side of the outer surface of the horizontal column 4. The lower part of the outer surface of the fixed steel plate 5 is fixedly connected to a limit plate 501. A crossbeam 502 is fixedly installed on one side of the outer surface of the limit plate 501. A plug rod 503 is bolted to one side of the upper surface of the crossbeam 502. A brake rod 504 is movably connected to the outer surface of the plug rod 503. The adsorption unit includes a square plate 505, a hydraulic cylinder 506, a telescopic column 507, a connecting spring 508, a limit block 509, a connecting cylinder 510, a No. 1 mounting piece 511, a No. 2 mounting piece 512, a plate frame 513 and an arc-shaped strong magnetic plate 514. The square plate 505 is fixedly connected to one side of the outer surface of the brake rod 504, the hydraulic cylinder 506 is fixedly connected to one side of the outer surface of the square plate 505, the telescopic column 507 is connected to the output end of the hydraulic cylinder 506, the connecting spring 508 is fixedly connected to the other end surface of the brake rod 504, the limit block 509 is fixedly installed on one side of the upper surface of the brake rod 504, the connecting cylinder 510 is fixedly connected to the upper surface of the limit block 509, one end of the connecting cylinder 510 is fixedly connected to the other end of the connecting spring 508, the No. 1 mounting piece 511 is fixedly installed on the upper surface of the brake rod 504, the No. 2 mounting piece 512 is fixedly connected to the middle position of the upper surface of the brake rod 504, the plate frame 513 is fixedly connected to one side of the outer surface of the brake rod 504 through the No. 2 mounting piece 512 and the No. 1 mounting piece 511, the arc-shaped strong magnetic plate 514 is fixedly installed on one side of the outer surface of the plate frame 513, and the upper surface of the No. 2 mounting piece 512 is fixedly connected with a round rod 515.

[0025] In this embodiment, when the elevator car 412 falls, the fall of the elevator car 412 will drive the cross column 4 to fall on the outer surface of the guide column 2. At this time, the output end of the hydraulic cylinder 506 will pull back the telescopic column 507, and the telescopic column 507 will drive the brake rod 504 on the other side to move toward the brake rod 504 on that side. During the movement, the brake rod 504 drives the arc-shaped strong magnetic plate 514 installed on the outer surface of the same side to move. The arc-shaped strong magnetic plates 514 on both sides attract each other and there is a large magnetic attraction force, so that the brake rods 504 on both sides can firmly clamp and fix the outer surface of the guide column 2, and safely brake the fall of the elevator car 412.

[0026] Embodiment 2: On the basis of the first embodiment: the tensioning mechanism includes a winding unit and a limiting unit, the winding unit includes a bottom plate 3 fixedly installed on one side of the upper surface of the fixed plate 1, a driving motor 301 is fixedly installed on the upper surface of the bottom plate 3, the output end of the driving motor 301 is connected to a rotating disk 302, one end of the rotating disk 302 is connected to a reduction box 309, the output end of the reduction box 309 is connected to a connecting shaft 310, a steel cable winch 311 is fixedly installed on one side of the outer surface of the connecting shaft 310, a section of steel cable 312 is connected to the outer surface of the steel cable winch 311, a locking member 313 is fixedly connected to the lower end of the section of steel cable 312, a second section of steel cable 314 is fixedly connected to the lower end of the locking member 313, a compression spring 315 is fixedly connected to the lower end of the second section of steel cable 314, a fastening bolt 316 is fixedly installed at the lower end of the compression spring 315; The limiting unit includes a mounting plate 303 on one side of the upper surface of the fixing plate 1, a fixing plate 304 is fixedly mounted on the upper surface of the mounting plate 303, a fixing piece 305 is fixedly mounted on the upper part of one side of the outer surface of the fixing piece 304, a fixing piece 306 is movably connected to one side of the outer surface of the fixing piece 305, a mounting frame 307 is fixedly mounted on one end surface of the fixing piece 306, and a limiting rod 308 is connected to the inner wall of the mounting frame 307.

[0027] In this embodiment, when the elevator car 412 falls, it drives the cross column 4 to fall, and at the same time drives the two sections of steel cables 314 connected to the upper surface of the cross frame 407 to fall. At this time, the driving motor 301 works in reverse, driving the rotating disk 302 to reverse, so that the output end of the reduction box 309 reverses and drives the connecting shaft 310 to rotate, and pulls a section of steel cable 312 in reverse, so that a section of steel cable 312 is reversely wound on the outer surface of the steel cable winch 311, and the locking member 313 and the two sections of steel cable 314 are pulled upward by the reverse movement of a section of steel cable 312, thereby pulling the cross frame 407 and the elevator car 412, and performing emergency braking on the fall of the elevator car 412, thereby improving the braking effect and improving the safety of the elevator car 412.

[0028] Embodiment three: On the basis of the first and second embodiments: a fixing mechanism is provided on the bottom surface of the horizontal column 4, the fixing mechanism includes a No. 1 connecting member 403 fixedly installed on the bottom surface of the horizontal column 4, a No. 2 connecting member 404 is fixedly installed on the bottom surface of the No. 1 connecting member 403, a connecting frame 405 is fixedly installed on the bottom surface of the No. 2 connecting member 404, a fixing bolt 406 is bolted to one side of the outer surface of the connecting frame 405, a horizontal frame 407 is fixedly connected by the fixing bolt 406, a No. 1 fastener 408 is fixedly installed on one side of the outer surface of the horizontal frame 407, a vertical rod 409 is fixedly connected by the No. 1 fastener 408, a connecting plate 410 is fixedly installed on the upper part of one side of the outer surface of the vertical rod 409, and an oblique support rod 411 is fixedly installed on one side of the outer surface of the connecting plate 410; An elevator car 412 is fixedly installed on one side of the outer surface of the vertical rod 409, an upper slide rail 413 is fixedly installed on the upper part of the outer surface of the elevator car 412, a lower slide rail 418 is fixedly installed on the lower part of the outer surface of the elevator car 412, a slide groove 419 is provided on the surface of the lower slide rail 418 and the bottom surface of the upper slide rail 413, and an elevator car door 414 is slidably connected to the inner wall of the slide groove 419; a No. 2 fastener 415 is fixedly connected to the lower part of one side of the outer surface of the vertical rod 409, a connecting column 416 is fixedly installed on the lower part of one side of the outer surface of the No. 2 fastener 415, a connecting column 416 is fixedly installed on one end surface of the connecting column 416, and a connecting ring 417 is fixedly installed on the inner wall of the connecting ring 417 and the outer surface of the guide column 2 is slidably connected.

[0029] In this embodiment, a connecting piece 410 is installed on one side of the outer surface of the vertical rod 409, and an oblique support rod 411 is fixedly connected on the oblique side between the connecting pieces 410 on both sides, so that two triangular areas are formed in the connection range, thereby improving the connection stability between the vertical rod 409 and the No. 1 fastener 408 and the horizontal frame 407, improving the installation pulling stability of the elevator car 412, and improving the effect of the braking mechanism of the elevator car 412 when it falls.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fall prevention safety brake device for a box elevator, comprising a fixed plate (1) and a guide column (2), wherein the guide column (2) is fixedly mounted on the bottom surface of the fixed plate (1), the guide columns (2) are symmetrically distributed on both sides of the bottom surface of the fixed plate (1), a transverse column (4) is arranged below the fixed plate (1), the guide column (2) passes through the upper surface of the transverse column (4) and is slidably connected to the transverse column (4), and is characterized in that: The upper surface of the fixing plate (1) is provided with a tensioning mechanism, and the outer surface of the guide column (2) is provided with a braking mechanism; The braking mechanism comprises a connecting unit and an adsorption unit, wherein the connecting unit comprises a fixed steel plate (5) fixedly mounted on one side of the outer surface of a horizontal column (4), a lower portion of one side of the outer surface of the fixed steel plate (5) being fixedly connected to a limiting plate (501), a cross beam (502) being fixedly mounted on one side of the outer surface of the limiting plate (501), a plug rod (503) being bolted to one side of the upper surface of the cross beam (502), and a brake rod (504) being movably connected to the outer surface of the plug rod (503); the adsorption unit comprises a square plate (505), a hydraulic cylinder (506), a telescopic column (507), a connecting spring (508), a limiting block (509), a connecting cylinder (510), a No. 1 mounting member (511), a No. 2 mounting member (512), a plate frame (513) and an arc-shaped strong magnetic plate (514).

2. The anti-fall safety brake device for a cabin elevator according to claim 1, characterized in that: The square plate (505) is fixedly connected to one side of the outer surface of the brake rod (504); the hydraulic cylinder (506) is fixedly connected to one side of the outer surface of the square plate (505); the telescopic column (507) is connected to the output end of the hydraulic cylinder (506); the connecting spring (508) is fixedly connected to the other end surface of the brake rod (504); the limit block (509) is fixedly installed on one side of the upper surface of the brake rod (504); the connecting cylinder (510) is fixedly connected to the upper surface of the limit block (509); one end of the connecting cylinder (510) is connected to the connecting spring (510). The other end of the connecting spring (508) is fixedly connected, the No. 1 mounting member (511) is fixedly mounted on the upper surface of the brake rod (504), the No. 2 mounting member (512) is fixedly connected to the middle position of the upper surface of the brake rod (504), the plate frame (513) is fixedly connected to one side of the outer surface of the brake rod (504) through the No. 2 mounting member (512) and the No. 1 mounting member (511), the arc-shaped strong magnetic plate (514) is fixedly mounted on one side of the outer surface of the plate frame (513), and the upper surface of the No. 2 mounting member (512) is fixedly connected with a round rod (515).

3. The anti-fall safety brake device of a cabin elevator according to claim 1, characterized in that: The tensioning mechanism comprises a winding unit and a limiting unit. The winding unit comprises a bottom plate (3) fixedly mounted on one side of an upper surface of a fixed plate (1); a driving motor (301) is fixedly mounted on the upper surface of the bottom plate (3); an output end of the driving motor (301) is connected to a rotating disk (302); one end of the rotating disk (302) is connected to a reduction box (309); an output end of the reduction box (309) is connected to a connecting shaft (310); a steel cable winch (311) is fixedly mounted on one side of an outer surface of the connecting shaft (310); a section of steel cable (312) is connected to an outer surface of the steel cable winch (311); a locking member (313) is fixedly mounted at the lower end of the section of steel cable (312); a second section of steel cable (314) is fixedly mounted at the lower end of the locking member (313); a compression spring (315) is fixedly mounted at the lower end of the second section of steel cable (314); a fastening bolt (316) is fixedly mounted at the lower end of the compression spring (315).

4. The anti-falling safety brake device of a cabin elevator according to claim 3, characterized in that: The limiting unit comprises a mounting plate (303) on one side of the upper surface of a fixing plate (1); a fixing sheet (304) is fixedly mounted on the upper surface of the mounting plate (303); a first fixing member (305) is fixedly mounted on the upper part of one side of the outer surface of the fixing sheet (304); a second fixing member (306) is movably connected to one side of the outer surface of the first fixing member (305); a mounting frame (307) is fixedly mounted on one end surface of the second fixing member (306); and a limiting rod (308) is connected to the inner wall of the mounting frame (307).

5. The anti-fall safety brake device for a cabin elevator according to claim 1, characterized in that: The bottom surface of the horizontal column (4) is provided with a fixing mechanism, the fixing mechanism comprising a No. 1 connecting member (403) fixedly mounted on the bottom surface of the horizontal column (4), a No. 2 connecting member (404) fixedly mounted on the bottom surface of the No. 1 connecting member (403), a connecting frame (405) fixedly mounted on the bottom surface of the No. 2 connecting member (404), a fixing bolt (406) bolted to one side of the outer surface of the connecting frame (405), a horizontal frame (407) fixedly connected via the fixing bolt (406), a No. 1 fastener (408) fixedly mounted on one side of the outer surface of the horizontal frame (407), a vertical rod (409) fixedly connected via the No. 1 fastener (408), a connecting plate (410) fixedly mounted on the upper part of one side of the outer surface of the vertical rod (409), and an oblique support rod (411) fixedly mounted on one side of the outer surface of the connecting plate (410).

6. The anti-falling safety brake device of a cabin elevator according to claim 5, characterized in that: An elevator car (412) is fixedly mounted on one side of the outer surface of the vertical rod (409), an upper slide rail (413) is fixedly mounted on the upper portion of one side of the outer surface of the elevator car (412), and a lower slide rail (418) is fixedly mounted on the lower portion of one side of the outer surface of the elevator car (412), a slide groove (419) is provided on the surface of the lower slide rail (418) and the bottom surface of the upper slide rail (413), and an elevator car door (414) is slidably connected to the inner wall of the slide groove (419).

7. The anti-fall safety brake device for a cabin elevator according to claim 5, characterized in that: A second fastener (415) is fixedly connected to the lower portion of one side of the outer surface of the vertical rod (409), a connecting column (416) is fixedly installed to the lower portion of one side of the outer surface of the second fastener (415), a connecting ring (417) is fixedly installed on one end surface of the connecting column (416), and the inner wall of the connecting ring (417) is slidably connected to the outer surface of the guide column (2).

8. The anti-fall safety brake device for a cabin elevator according to claim 1, characterized in that: A steel cable through hole (401) is provided in the middle of the upper surface of the fixing plate (1) and the upper surface of the cross column (4), and column holes (402) are provided on both sides of the upper surface of the cross column (4).

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