Sliding block mechanism of inclined lifting platform

Abstract

The present invention discloses a sliding block mechanism of an obliquely hung lifting platform. The lifting platform includes a bottom plate and a side plate. The side plate is slidably mounted on an upper guide rail and a lower guide rail through a sliding block mechanism. The sliding block mechanism includes an upper sliding block and a lower sliding block. The upper sliding block includes an upper mounting plate. An embracing device is respectively mounted on both ends of one side of the upper mounting plate. The other side of the upper mounting plate is rotatably mounted on the side plate through an upper main bearing. The lower sliding block includes a lower mounting plate. A semi-embracing device for slidably holding the lower guide rail is respectively mounted on both ends of one side of the lower mounting plate. The other side of the lower mounting plate is rotatably mounted on the side plate through a lower main bearing. The present invention adopts a method of matching the upper and lower sliding blocks, so that the obliquely hung lifting platform is safer and more reliable, runs more smoothly, and turns more flexibly. It can effectively reduce the failure rate of the obliquely hung lifting platform and reduce the design requirements for the guide rail.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting platforms, and in particular relates to a sliding block mechanism of an obliquely hung lifting platform. Background Art

[0002] The inclined lifting platform provides convenient equipment for the elderly, the weak, the sick and the disabled who use wheelchairs by adding rails on the railings or walls on both sides of the steps. It is generally installed in places that are not suitable for ramps or elevators, such as subway entrances and exits, underground sidewalks, pedestrian bridges, and railway station entrances and exits. The inclined lifting platform does not damage the surface of the stairs, can be folded up when not in use, does not occupy the corridor space, and can be sat in a wheelchair and go up and down the stairs by pressing the switch. It is simple and convenient to operate.

[0003] The guide rails are laid out along the stairs, and the inclined hanging lifting platform slides on the guide rails through the slider mechanism installed on the back of the side panel of the lifting platform. Due to the slope of the stairs, there are also large bends at the corners of the stairs. Therefore, the coordination between the slider mechanism and the guide rails directly affects the safety and operational stability of the inclined hanging lifting platform. The slider mechanism of the existing inclined hanging lifting platform adopts a single-rail single-hanging type, which has high requirements on the guide rail's bearing capacity and anti-deformation ability. Under the influence of factors such as cost and construction environment, the stability of the existing inclined hanging lifting platform is reduced after long-term use, and it is easy to get stuck during the lifting process. The safety performance of the guide rail also needs to be frequently tested. Summary of the invention

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a sliding block mechanism of an oblique hanging lifting platform, the lifting platform includes a bottom plate and a side plate, the side plate is slidably installed on the upper guide rail and the lower guide rail through the sliding block mechanism, the sliding block mechanism includes an upper sliding block fixed to the upper end of the back side plate and a lower sliding block fixed to the lower end of the back side plate,

[0005] The upper sliding block comprises an upper mounting plate, and an embracing device for slidably embracing the upper guide rail is respectively installed at both ends of one side of the upper mounting plate, and the other side of the upper mounting plate is rotatably mounted on the side plate through an upper main bearing;

[0006] The lower sliding block includes a lower mounting plate, and both ends of one side of the lower mounting plate are respectively equipped with a semi-embracing device for slidably embracing the lower guide rail, and the other side of the lower mounting plate is rotatably mounted on the side plate through a lower main bearing.

[0007] As a preferred embodiment of the above technical solution, the embracing device includes an upper U-shaped rotating frame rotatably mounted on an upper mounting plate through an upper secondary bearing and four rotating wheels mounted in the upper U-shaped rotating frame, the upper U-shaped rotating frame includes an upper rotating arm and a lower rotating arm with the same structure and arranged opposite to each other, wherein the upper rotating arm includes a conical mounting block fixed on the inner side of the upper rotating arm, and the two rotating wheels are symmetrically mounted on both sides of the conical mounting block rotatably through a rotating shaft, and a groove with an arc-shaped cross-section is provided on the circumferential surface of the rotating wheel, and the grooves of the four rotating wheels enclose an embracing space with a circular cross-section.

[0008] As a preferred embodiment of the above technical solution, the upper main bearing is coaxial with an upper secondary bearing on the upper sliding block.

[0009] As a preferred embodiment of the above technical solution, the semi-embracing device includes a lower U-shaped rotating frame rotatably mounted on a lower mounting plate through a lower auxiliary bearing, the lower U-shaped rotating frame includes a long rotating arm and a short rotating arm, a side rotating shaft is connected between the long rotating arm and the short rotating arm, a side rotating wheel is rotatably mounted on the side rotating shaft, an upper rotating shaft is mounted on the short rotating arm, the upper rotating shaft is parallel to the long rotating arm, an upper rotating wheel is rotatably mounted on the upper rotating shaft, the side rotating wheel and the upper rotating wheel are both provided with grooves with arc-shaped cross-sections, and the grooves of the side rotating wheel and the upper rotating wheel form a semicircular embracing space.

[0010] As a preferred embodiment of the above technical solution, the lower main bearing is coaxial with a lower secondary bearing on the lower sliding block.

[0011] The beneficial effects of the present invention are as follows: the sliding block mechanism of the inclined hanging lifting platform of the present invention adopts the mode of matching the upper and lower sliding blocks, so that the inclined hanging lifting platform is safer and more reliable, runs more smoothly, and turns more flexibly. It can effectively reduce the failure rate of the inclined hanging lifting platform and reduce the design requirements for the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 Schematic diagram of the three-dimensional structure of the upper sliding block;

[0014] Figure 3 is a side view of the upper slider;

[0015] Figure 4 Schematic diagram of the three-dimensional structure of the lower sliding block;

[0016] Figure 5 is a side view of the lower sliding block. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part 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 creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-5 As shown, the sliding block mechanism of the oblique hanging lifting platform, the lifting platform includes a bottom plate 1 and a side plate 2, the side plate 2 is slidably mounted on the upper guide rail and the lower guide rail through the sliding block mechanism, the sliding block mechanism includes an upper sliding block 3 fixed to the upper end of the back side of the side plate 2 and a lower sliding block 4 fixed to the lower end of the back side of the side plate 2.

[0021] The upper sliding block 3 includes an upper mounting plate 301, and both ends of one side of the upper mounting plate 301 are respectively installed with an embracing device for slidably embracing the upper guide rail, and the other side of the upper mounting plate 301 is rotatably mounted on the side plate 2 through an upper main bearing 302;

[0022] The lower sliding block 4 includes an upper mounting plate 401 , and both ends of one side of the lower mounting plate 401 are respectively installed with a semi-encircling device for slidably embracing the lower guide rail, and the other side of the lower mounting plate 401 is rotatably mounted on the side plate 2 through a lower main bearing 402 .

[0023] Further, the embracing device includes an upper U-shaped rotating frame 304 rotatably mounted on the upper mounting plate 301 through an upper secondary bearing 303 and four rotating wheels 305 mounted in the upper U-shaped rotating frame 304. The upper U-shaped rotating frame 304 includes an upper rotating arm 306 and a lower rotating arm 307 with the same structure and arranged oppositely, wherein the upper rotating arm 306 includes a conical mounting block 308 fixed on the inner side of the upper rotating arm 306, and two rotating wheels 305 are rotatably and symmetrically mounted on both sides of the conical mounting block 308 through a rotating shaft 309, respectively, and a groove 309 with an arc-shaped cross section is provided on the circumferential surface of the rotating wheel 305, and the grooves 309 of the four rotating wheels 305 enclose an embracing space 310 with a circular cross section. The two embracing devices can slidably embrace the upper guide rail, with high safety and will not fall off the upper guide rail. The upper main bearing 302 and the upper secondary bearing 303, the embracing device can still embrace the upper guide rail at the bend. A gap is left between the rotating wheel 305 of the upper rotating arm 306 and the rotating wheel 305 of the lower rotating arm 307 to facilitate the installation and fixation of the upper guide rail.

[0024] Furthermore, the upper main bearing 302 is coaxial with an upper secondary bearing 303 on the upper sliding block 3 .

[0025] Further, the semi-embracing device includes a lower U-shaped rotating frame 404 rotatably mounted on the lower mounting plate 401 through a lower secondary bearing 403, the lower U-shaped rotating frame 404 includes a long rotating arm 405 and a short rotating arm 406, a side rotating shaft is connected between the long rotating arm 405 and the short rotating arm 406, a side rotating wheel 407 is rotatably mounted on the side rotating shaft, an upper rotating shaft 408 is mounted on the short rotating arm 406, the upper rotating shaft 405 is parallel to the long rotating arm 405, an upper rotating wheel 409 is rotatably mounted on the upper rotating shaft 405, and the side rotating wheel 407 and the upper rotating wheel 409 are both provided with a groove 410 with an arc-shaped cross section, and the groove of the side rotating wheel 407 and the groove of the upper rotating wheel 409 form a semicircular embracing space 411. The lower guide rail is embraced by the semi-embracing device, the upper rotating wheel 409 is hung above the lower guide rail, and the side rotating wheel 407 supports the lower guide rail from the side.

[0026] Further, the lower main bearing 402 is coaxial with a lower secondary bearing 403 on the lower sliding block 4. Preferably, the height of the upper secondary bearing 303 coaxial with the upper main bearing 302 is higher than the height of the other upper secondary bearing 303. The height of the lower secondary bearing 403 coaxial with the lower main bearing 402 is higher than the height of the other lower secondary bearing 403. At the same time, limit plates 5 are respectively arranged above the upper sliding block 3 and below the lower sliding block 4 to control the rotation amplitude of the upper sliding block 3 and the lower sliding block 4, thereby further improving safety.

[0027] It is worth mentioning that the upper main bearing 302, upper auxiliary bearing 303, lower main bearing 402, lower auxiliary bearing 403, etc. involved in the patent application of the present invention are all bearings. The bearings are regarded as prior art, and their specific structure, working principle, and possible control method and spatial arrangement method can be selected by conventional methods in the field. They should not be regarded as the inventive point of the patent of the present invention, and the patent of the present invention will not be further elaborated.

[0028] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. The sliding block mechanism of the inclined lifting platform, the lifting platform includes a bottom plate and a side plate, the side plate is slidably mounted on the upper guide rail and the lower guide rail through the sliding block mechanism, It is characterized in that The sliding block mechanism includes an upper sliding block fixed to the upper end of the back side of the side plate and a lower sliding block fixed to the lower end of the back side of the side plate, the upper sliding block includes an upper mounting plate, one end of the upper mounting plate is respectively provided with an embracing device for slidably embracing the upper guide rail, and the other side of the upper mounting plate is rotatably mounted on the side plate through an upper main bearing; The lower sliding block includes a lower mounting plate, and a semi-encircling device for slidably embracing the lower guide rail is respectively installed at both ends of one side of the lower mounting plate, and the other side of the lower mounting plate is rotatably mounted on the side plate through a lower main bearing. The embracing device comprises an upper U-shaped rotating frame rotatably mounted on an upper mounting plate through an upper auxiliary bearing and four rotating wheels mounted in the upper U-shaped rotating frame, wherein the upper U-shaped rotating frame comprises an upper rotating arm and a lower rotating arm having the same structure and being arranged opposite to each other, wherein the upper rotating arm comprises a conical mounting block fixed to the inner side of the upper rotating arm, and two rotating wheels are symmetrically mounted on both sides of the conical mounting block rotatably through a rotating shaft, and a groove with an arc-shaped cross section is provided on the circumferential surface of the rotating wheel, and the grooves of the four rotating wheels enclose an embracing space with a circular cross section, The semi-embracing device includes a lower U-shaped rotating frame rotatably mounted on a lower mounting plate through a lower auxiliary bearing, the lower U-shaped rotating frame includes a long rotating arm and a short rotating arm, a side rotating shaft is connected between the long rotating arm and the short rotating arm, a side rotating wheel is rotatably mounted on the side rotating shaft, an upper rotating shaft is mounted on the short rotating arm, the upper rotating shaft is parallel to the long rotating arm, an upper rotating wheel is rotatably mounted on the upper rotating shaft, the side rotating wheel and the upper rotating wheel are both provided with grooves with arc-shaped cross-sections, and the grooves of the side rotating wheel and the upper rotating wheel form a semicircular embracing space.

2. The sliding block mechanism of the inclined lifting platform as claimed in claim 1, It is characterized in that The upper main bearing is coaxial with an upper secondary bearing on the upper sliding block.

3. The sliding block mechanism of the inclined lifting platform as claimed in claim 1, It is characterized in that The lower main bearing is coaxial with a lower secondary bearing on the lower sliding block.

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