Anti-falling system of lifting platform

Abstract

The invention discloses an anti-falling system for a lifting platform. The anti-falling system comprises a movable mounting frame; the guide assembly comprises a first mounting frame and a second mounting frame, the first mounting frame is hinged to the left end of the movable mounting frame, a first supporting piece is arranged at the lower end of the first mounting frame, first supporting wheels are arranged at the two ends of the first supporting piece, a first hanging piece is arranged at the upper end of the first mounting frame, and a second hanging piece is arranged at the lower end of the second mounting frame. First hanging wheels are arranged at the two ends of the first hanging piece, the second mounting frame is hinged to the right end of the movable mounting frame, a second supporting piece is arranged at the lower end of the second mounting frame, second supporting wheels are arranged at the two ends of the second supporting piece, a second hanging piece is arranged at the upper end of the second mounting frame, and second hanging wheels are arranged at the two ends of the second hanging piece. And an anti-falling assembly. According to the anti-falling system of the lifting platform, through cooperation of the first tachometer wheel and the Hall sensor, the moving speed of the lifting platform is detected, and therefore braking can be achieved by pushing the first cam.

Description

Technical Field

[0001] The invention belongs to the field of anti-falling systems, and in particular relates to an anti-falling system for a lifting platform. Background Art

[0002] Lifting platforms are non-standard elevators that can carry people or objects for lifting, especially those that run along complex routes. They have always been widely and importantly used in the fields of production and life. Different from ordinary linear guide elevators (including vertical ladders and escalators), its characteristic is that the equipment's running trajectory must make curved turns according to the actual environment, and is used to transport people or valuable materials to some complex environments. The lifting platform (i.e., non-standard elevators, etc.) moves along the guide rails of the lifting platform. However, the lifting platform may also fall unexpectedly, which will undoubtedly make the people or objects on the lifting platform unsafe. Therefore, it is necessary to design a lifting platform anti-fall system to ensure that the lifting platform will not fall and cause safety accidents. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a lifting platform anti-falling system.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A lifting platform anti-fall system, comprising:

[0006] Mobile mounting frame;

[0007] A guide assembly, wherein the guide assembly comprises a first mounting frame and a second mounting frame, the first mounting frame is hingedly arranged at the left end of the mobile mounting frame, a first bracket is arranged at the lower end of the first mounting frame, first supporting wheels are symmetrically arranged at both ends of the first bracket, a first hanging member is arranged at the upper end of the first mounting frame, first hanging wheels are symmetrically arranged at both ends of the first hanging member, the second mounting frame is hingedly arranged at the right end of the mobile mounting frame, a second bracket is arranged at the lower end of the second mounting frame, second supporting wheels are symmetrically arranged at both ends of the second bracket, a second hanging member is arranged at the upper end of the second mounting frame, second hanging wheels are symmetrically arranged at both ends of the second hanging member, and the first supporting wheel, the first hanging wheel, the second supporting wheel and the second hanging wheel all match the guide rail of the lifting platform;

[0008] An anti-falling assembly, the anti-falling assembly includes a speed measuring assembly and a brake assembly, the brake assembly is arranged on the first mounting frame, and the speed measuring assembly is arranged on the second mounting frame.

[0009] Further, the brake assembly includes a first cam, a first connecting frame is provided in the middle of the first mounting frame, the left end of the first cam is hinged to the left end of the first connecting frame, a plurality of first indentations are provided at the right end of the first cam, a first guide hole is provided on the first mounting frame, a first connecting rod is provided at the right end of the first cam, and the first connecting rod corresponds to the first guide hole.

[0010] Furthermore, a first rotating shaft is provided at the left end of the first connecting frame, the first cam is hinged to the first rotating shaft, a first clearance opening is provided at the upper end of the first cam, a first torsion spring is sleeved on the first rotating shaft, the first torsion spring is arranged at the first clearance opening, and the first clearance opening corresponds to the first mounting frame.

[0011] Further, the speed measuring assembly includes a first mounting block, a first speed measuring wheel, a first magnet and a Hall sensor, the first mounting block is arranged in the middle of the second mounting frame, the first speed measuring wheel is arranged in the middle of the first mounting block, the first speed measuring wheel matches the guide rail of the lifting platform, the Hall sensor includes a Hall element, the Hall element is arranged at the upper end of the first mounting block, the first magnet is arranged at the upper end of the first speed measuring wheel, the Hall element matches the first magnet, and the Hall sensor is arranged on the mobile mounting frame.

[0012] Furthermore, a first guide rod is provided on the second mounting frame, second guide holes are provided at both ends of the first mounting block, the first guide rod corresponds to the second guide hole one by one, a first stop block is provided at the rear end of the first guide rod, a first spring is sleeved on the first guide rod, and the first spring corresponds to between the first mounting frame and the first mounting block.

[0013] Compared with the prior art, the anti-falling system for a lifting platform disclosed in the present invention has the beneficial effect that it can detect the moving speed of the lifting platform through the cooperation of the first speed measuring wheel and the Hall sensor, so that braking can be achieved by pushing the first cam, thereby achieving the anti-falling effect of the lifting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a preferred embodiment provided by the present invention from one viewing angle.

[0015] Figure 2 It is a structural schematic diagram of another viewing angle of a preferred embodiment provided by the present invention.

[0016] Figure 3 It is a structural schematic diagram from one perspective of the first mounting frame of the preferred embodiment provided by the present invention.

[0017] Figure 4It is a structural schematic diagram from another perspective of the first mounting frame of the preferred embodiment provided by the present invention.

[0018] Figure 5 It is a schematic structural diagram of a second mounting frame of a preferred embodiment provided by the present invention.

[0019] Figure 6 It is a structural schematic diagram from one perspective of the first mounting block of the preferred embodiment provided by the present invention.

[0020] Figure 7 It is a structural schematic diagram of the first mounting block of the preferred embodiment provided by the present invention from another perspective.

[0021] Figure 8 It is a cross-sectional schematic diagram from one viewing angle of the first mounting block of the preferred embodiment provided by the present invention.

[0022] Fig. 9 It is a cross-sectional schematic diagram from another viewing angle of the first mounting block of the preferred embodiment provided by the present invention.

[0023] Fig.10 It is a structural schematic diagram from one perspective of a brake assembly of a preferred embodiment provided by the present invention.

[0024] Fig.11 It is a structural schematic diagram of the brake assembly of the preferred embodiment provided by the present invention from another perspective.

[0025] The reference numerals include: 100, first mounting frame; 110, first hanging member; 111, first hanging wheel; 120, first supporting member; 121, first supporting wheel; 130, first connecting frame; 140, first rotating shaft; 150, first cam; 151, first indentation; 152, first connecting rod; 153, first clearance opening; 160, first torsion spring; 170, first guide hole; 200, second mounting frame; 210, second hanging member; 211, second hanging wheel; 220, second supporting member; 221, second supporting wheel; 230, first mounting block; 231, second guide hole; 240, first speed measuring wheel; 250, first guide rod; 251, first stopper; 260, first spring; 270, first magnet; 300, movable mounting frame; 310, Hall sensor; 311, Hall element. DETAILED DESCRIPTION

[0026] The present invention discloses a lifting platform anti-falling system. The specific implementation manner of the present invention is further described below in conjunction with a preferred embodiment.

[0027] See attached figure Figure 1-11 , Figure 1 is a structural schematic diagram of a preferred embodiment provided by the present invention from one viewing angle, Figure 2is a structural schematic diagram of another perspective of a preferred embodiment provided by the present invention, Figure 3 is a structural schematic diagram of a first mounting frame 100 according to a preferred embodiment of the present invention from one perspective. Figure 4 is a structural schematic diagram of the first mounting frame 100 of the preferred embodiment provided by the present invention from another perspective, Figure 5 is a schematic structural diagram of a second mounting frame 200 of a preferred embodiment provided by the present invention, Figure 6 is a structural schematic diagram of a first mounting block 230 of a preferred embodiment provided by the present invention from one perspective, Figure 7 is a structural schematic diagram of the first mounting block 230 of the preferred embodiment provided by the present invention from another perspective, Figure 8 is a cross-sectional schematic diagram of a first mounting block 230 of a preferred embodiment provided by the present invention from one viewing angle, Fig. 9 is a cross-sectional schematic diagram of another viewing angle of the first mounting block 230 of the preferred embodiment provided by the present invention, Fig.10 is a structural schematic diagram of a brake assembly from one perspective of a preferred embodiment of the present invention. Fig.11 It is a structural schematic diagram of the brake assembly of the preferred embodiment provided by the present invention from another perspective.

[0028] Preferred embodiments.

[0029] This embodiment provides a lifting platform anti-falling system, including:

[0030] Mobile mounting frame 300;

[0031] A guide assembly, the guide assembly includes a first mounting frame 100 and a second mounting frame 200, the first mounting frame 100 is hingedly arranged at the left end of the mobile mounting frame 300, a first supporting member 120 is provided at the lower end of the first mounting frame 100, and first supporting wheels 121 are symmetrically arranged at both ends of the first supporting member 120, a first hanging member 110 is provided at the upper end of the first mounting frame 100, and first hanging wheels 111 are symmetrically arranged at both ends of the first hanging member 110, the second mounting frame 200 is hingedly arranged at the right end of the mobile mounting frame 300, a second supporting member 220 is provided at the lower end of the second mounting frame 200, and second supporting wheels 221 are symmetrically arranged at both ends of the second supporting member 220, a second hanging member 210 is provided at the upper end of the second mounting frame 200, and second hanging wheels 211 are symmetrically arranged at both ends of the second hanging member 210, and the first supporting wheel 121, the first hanging wheel 111, the second supporting wheel 221 and the second hanging wheel 211 are all matched with the guide rail of the lifting platform;

[0032] The anti-falling component includes a speed measuring component and a brake component. The brake component is arranged on the first mounting frame 100 , and the speed measuring component is arranged on the second mounting frame 200 .

[0033] Furthermore, the brake assembly includes a first cam 150, a first connecting frame 130 is provided in the middle of the first mounting frame 100, the left end of the first cam 150 is hinged to the left end of the first connecting frame 130, a plurality of first indentations 151 are provided at the right end of the first cam 150, a first guide hole 170 is provided on the first mounting frame 100, a first connecting rod 152 is provided at the right end of the first cam 150, and the first connecting rod 152 corresponds to the first guide hole 170.

[0034] Furthermore, a first rotating shaft 140 is provided at the left end of the first connecting frame 130, the first cam 150 is hinged to the first rotating shaft 140, a first clearance opening 153 is provided at the upper end of the first cam 150, a first torsion spring 160 is sleeved on the first rotating shaft 140, the first torsion spring 160 is arranged at the first clearance opening 153, and the first clearance opening 153 corresponds to the first mounting frame 100.

[0035] Further, the speed measuring assembly includes a first mounting block 230, a first speed measuring wheel 240, a first magnet 270 and a Hall sensor 310, the first mounting block 230 is arranged in the middle of the second mounting frame 200, the first speed measuring wheel 240 is arranged in the middle of the first mounting block 230, the first speed measuring wheel 240 matches the guide rail of the lifting platform, the Hall sensor 310 includes a Hall element 311, the Hall element 311 is arranged at the upper end of the first mounting block 230, the first magnet 270 is arranged at the upper end of the first speed measuring wheel 240, the Hall element 311 matches the first magnet 270, and the Hall sensor 310 is arranged on the mobile mounting frame 300.

[0036] Furthermore, a first guide rod 250 is provided on the second mounting frame 200, and second guide holes 231 are provided at both ends of the first mounting block 230. The first guide rod 250 corresponds to the second guide hole 231 one by one. A first stop block 251 is provided at the rear end of the first guide rod 250. A first spring 260 is sleeved on the first guide rod 250, and the first spring 260 corresponds to between the first mounting frame 100 and the first mounting block 230.

[0037] Working principle:

[0038] The mobile mounting frame 300 is installed on the lifting platform, and the mobile mounting frame 300 is set on the guide rail of the lifting platform, that is, the first hanging wheel 111 and the second hanging wheel 211 are hung on the upper end of the guide rail of the lifting platform, and the first supporting wheel 121 and the second supporting wheel 221 are supported on the lower end of the guide rail of the lifting platform, wherein the driving mechanism of the lifting platform can be commonly used with existing technical means, and no further explanation is given. When the lifting platform is lifted and moved, the first speed measuring wheel 240 rotates in contact with the guide rail of the lifting platform, that is, drives the first magnet 270 to rotate, and the cooperation between the first magnet 270 and the Hall element 311 can generate a Hall effect, and the Hall sensor 310 amplifies and processes the signal, which plays a role in detecting the moving speed of the lifting platform. When the speed of the lifting platform exceeds the speed, the lifting platform can control the pushing of the first cam 150, so that the first cam 150 squeezes the guide rail of the lifting platform, and the friction force can be increased by the first indentation 151, thereby achieving the braking of the lifting platform. The mechanism for pushing the first cam 150 can be a conventional cylinder, that is, the first cam 150 can be controlled to rotate through the first guide hole 170 .

[0039] It is worth mentioning that the technical features such as the Hall sensor 310 involved in the patent application of the present invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the inventive point of the patent of the present invention. The patent of the present invention will not be further elaborated.

[0040] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting platform anti-fall system, characterized in that: include: Mobile mounting frame (300); A guide assembly, the guide assembly comprising a first mounting frame (100) and a second mounting frame (200), the first mounting frame (100) being hingedly arranged at the left end of the mobile mounting frame (300), a first supporting member (120) being arranged at the lower end of the first mounting frame (100), first supporting wheels (121) being symmetrically arranged at both ends of the first supporting member (120), a first hanging member (110) being arranged at the upper end of the first mounting frame (100), first hanging wheels (111) being symmetrically arranged at both ends of the first hanging member (110), and the second mounting frame (200) being hingedly arranged at the left end of the mobile mounting frame (300), a first supporting member (120) being arranged at the lower end of the first mounting frame (100), first supporting wheels (121) being symmetrically arranged at both ends of the first supporting member (120), and a first hanging member (110) being arranged at the upper end of the first mounting frame (100). 00) is hingedly arranged at the right end of the mobile mounting frame (300), the lower end of the second mounting frame (200) is provided with a second supporting member (220), and the two ends of the second supporting member (220) are symmetrically provided with second supporting wheels (221), the upper end of the second mounting frame (200) is provided with a second hanging member (210), and the two ends of the second hanging member (210) are symmetrically provided with second hanging wheels (211), and the first hanging wheel (121), the first hanging wheel (111), the second supporting wheel (221) and the second hanging wheel (211) are all matched with the guide rail of the lifting platform; An anti-falling assembly, the anti-falling assembly comprising a speed measuring assembly and a brake assembly, the brake assembly being arranged on the first mounting frame (100), and the speed measuring assembly being arranged on the second mounting frame (200).

2. The lifting platform anti-fall system according to claim 1, characterized in that: The brake assembly includes a first cam (150), a first connecting frame (130) is provided in the middle of the first mounting frame (100), the left end of the first cam (150) is hinged to the left end of the first connecting frame (130), a plurality of first indentations (151) are provided at the right end of the first cam (150), a first guide hole (170) is provided on the first mounting frame (100), a first connecting rod (152) is provided at the right end of the first cam (150), and the first connecting rod (152) corresponds to the first guide hole (170).

3. The lifting platform anti-fall system according to claim 2, characterized in that: A first rotating shaft (140) is provided at the left end of the first connecting frame (130), the first cam (150) is hinged to the first rotating shaft (140), a first clearance opening (153) is provided at the upper end of the first cam (150), a first torsion spring (160) is sleeved on the first rotating shaft (140), the first torsion spring (160) is arranged at the first clearance opening (153), and the first clearance opening (153) corresponds to the first mounting frame (100).

4. The lifting platform anti-fall system according to claim 3, characterized in that: The speed measuring assembly comprises a first mounting block (230), a first speed measuring wheel (240), a first magnet (270) and a Hall sensor (310); the first mounting block (230) is arranged at the middle of the second mounting frame (200); the first speed measuring wheel (240) is arranged at the middle of the first mounting block (230); the first speed measuring wheel (240) matches the guide rail of the lifting platform; the Hall sensor (310) comprises a Hall element (311); the Hall element (311) is arranged at the upper end of the first mounting block (230); the first magnet (270) is arranged at the upper end of the first speed measuring wheel (240); the Hall element (311) matches the first magnet (270); and the Hall sensor (310) is arranged on the movable mounting frame (300).

5. The lifting platform anti-fall system according to claim 4, characterized in that: The second mounting frame (200) is provided with a first guide rod (250), and the first mounting block (230) is provided with second guide holes (231) at both ends, and the first guide rod (250) corresponds to the second guide hole (231) one by one, and the rear end of the first guide rod (250) is provided with a first stopper (251), and the first guide rod (250) is sleeved with a first spring (260), and the first spring (260) corresponds to between the first mounting frame (100) and the first mounting block (230).

Images