Thin type lifting supporting frame with plate-shaped inner rails and springs placed on upper and lower sides

Abstract

The invention relates to a display supporting frame, in particular to a thin type supporting frame. The supporting frame comprises a base, a support, two sliding rails, a lifting module, at least two spring accommodating components, and at least two constant force springs, wherein the support is arranged on the base and provided with an accommodating sliding groove; the sliding rails are provided with inner rails, the inner rails are provided with plate-shaped moving portions, and the two sliding rails are arranged on the two opposite inner side walls of the accommodating sliding groove; the lifting module comprises a sliding assembly, an adapting plate and a pitch hinge unit connected between the sliding assembly and the adapting plate; the sliding assembly comprises two opposite side wings fixedly connected with the two moving portions correspondingly; the at least two spring accommodating components are arranged in the support in at least an upper row and a lower row in the longitudinal direction of the support; and the at least two constant force springs are arranged in the support in at least an upper row and a lower row in the longitudinal direction of the support, the winding ends of the constant force springs are rotationally arranged on the spring accommodating components, the rotating axes are perpendicular to a plane shared by the two sliding rails, and the stretching ends of the constant force springs are connected to the sliding assembly to provide elastic force so that a display can rise, fall and move along a guide path of the sliding rails and can stop at any time.

Description

technical field [0001] The present invention relates to a support frame for supporting display equipment lifting on a working surface, in particular to a display lifting support frame that requires a thin support frame (note: the display device referred to in the present invention is also referred to as a display or display screen, including LCD screens, monitors or displays that display movable images, including all-in-one desktops, POS machines, and tablet computers, etc.). Background technique [0002] Various display devices have been widely used in today's life. The main part of the display device is the display. At present, the liquid crystal display is basically the mainstream. The liquid crystal display is a kind of approximately plate-shaped display. It can only be used with the support of supporting devices such as racks. [0003] For the convenience of use, most of these displays need to be able to lift in actual use, and the adjustment of the lifting height is a...

AI Technical Summary

Problems solved by technology

[0004] However, the common "three U-shaped" (cross-sections are U-shaped outer rails, U-shaped inner rails and U-shaped ball racks) ball slides used in the prior art have an open U-shaped cross-section. The U-shaped opening structure, and since the inner rail is U-shaped, there is an opening, that is, the opening size, and the thickness of the inner rail is very large, which in turn leads to the overall thickness of the slide rail being large and unable to adapt to the thin support required by the thickness. That is to realize the thinning of the support frame, which is one of its important defects. But suppose there is a way to make the thickness of the slide rail very thin, but the outer diameter of the winding end of the indispensable constant force spring in the bracket (which can be roughly regarded as circle) If it cannot be reduced, it is still impossible to realize the thinning of the bracket. At present, the arrangement of the constant force spring in the existing technology has highlighted another bottleneck problem other than the slide rail that hinders the thinning of the bracket. This is because the existing technology No matter the constant force spring used is one or more constant force springs, its arrangement and installation in the bracket are all on roughly the same height plane, that is, in a row, and most of the constant force springs are placed in their coils. The rotation axis of the winding end is roughly parallel to the working surface and parallel to the common plane of the two slide rails (the installation of the slide rails in this direction is hereinafter referred to as upright, and the arrangement of the other 90° rotation is called lateral). The advantage is that the size of the constant force spring can be very large when viewed from the direction of the winding axis or from the width of the spring steel sheet. Under the same outer diameter of the winding end (approximately a circle, the same below), it is obviously smaller than the fixed force spring with a smaller width. The tension of the force spring is proportionally large, but this is not a big problem when the thickness of the bracket (referring to the front and rear direction) is loose, and there is no requirement for thinness or thinness. However, when the appearance of the bracket is required to be very thin or even ultra-thin (assuming that the slide rail can be thinned), this is because the life requirements of the stretching times of the constant force spring always correspond to the requirements for the shape of the winding part The size has a certain outer diameter (approximately a circle), and the outer diameter of its winding part cannot be excessively reduced, otherwise the life of the spring will not meet the requirements, and the processing and manufacturing process and the bending requirements of the spring steel sheet itself are not allowed to be too small Therefore, the ordinary fixed force spring installed upright will not be able to be installed in a thin bracket (assuming that the slide rail can be thinned), even if there are very few fixed force springs in the support bracket that are side-mounted, but These constant force springs include a maximum of two (because a row of ordinary brackets can only put two at most, and there is no space to arrange them), and their arrangements are all at the same height, that is, there is only one row up and down, because there is only one row. One row, if you need a thinner shape, you can only further reduce the size of the spring (note that the size under the side position does not refer to the outer diameter of the winding end, but the size of the winding end sliding axis, which is also equivalent to the steel sheet width dimension), so that the total stretch is not enough

Therefore, for a long time, when encountering such a support frame structure that requires a thin support thickness, due to the restrictions on the thickness of the slide rail and the arrangement of the constant force spring, as mentioned above, the two constraints often have to be given up, which seriously limits the product. The scope of use, especially in today's era when people are increasingly pursuing ultra-thin support frames, cannot meet people's new aesthetic needs.

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