Folding waist-protecting back cushion

Abstract

The utility model provides a folding waist-protecting back cushion, which relates to the technical field of waist-protecting back cushions, and comprises a seat plate, a backup plate and a rotating shaft, the seat plate is L-shaped, the top of the seat plate is fixedly connected with a plurality of first rotating blocks at equal intervals, and the bottom of the backup plate is fixedly connected with a plurality of second rotating blocks at equal intervals. According to the folding chair, when the first rotating block and the second rotating block can flexibly rotate on the surface of the rotating shaft after the nut is rotated, the backup plate is rotated forwards to be attached to the surface of the seat plate, then the nut is tightened again, at the moment, the backup plate is fixed again under the action of friction force and extrusion force, and then folding storage of the backup plate is completed; the waist-protecting back cushion is small in overall size after being folded, the tops of the limiting plates slightly protrude, at the moment, the folded waist-protecting back cushion is convenient to carry through the handle grooves, the problems that a large space needs to be occupied in the transportation, storage and carrying processes, and the waist-protecting back cushion is only suitable for being placed in a fixed place are solved, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waist protection pillows, in particular to a foldable waist protection pillow. Background Art

[0002] A lumbar support pillow is an auxiliary product specially designed to provide support and comfort for the waist. It is often used in office and driving scenarios. Placing it at the waist position of the seat can fill the gap between the waist and the backrest, provide continuous support for the waist, and reduce tension and fatigue of the waist muscles.

[0003] Traditional lumbar pillows are usually made of two elastic plates with an integrated structure and an L-shape. When placed on a seat for use, the horizontal plate is placed under the buttocks, and the vertical plate is placed against the waist. Although existing lumbar pillows are relatively mature, they cannot be folded and have a large overall size. They require a lot of space during transportation, storage and carrying. Therefore, they are only suitable for use in fixed places and have great limitations. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing waist support pillow is relatively mature but cannot be folded and has a large overall size, takes up a lot of space during transportation, storage and carrying, and is therefore only suitable for use in fixed places and has great limitations, and a foldable waist support pillow is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a foldable lumbar support pillow, comprising a seat plate, a back plate and a rotating shaft, the seat plate is L-shaped and has a plurality of first rotating blocks fixedly connected at the top at equal intervals, the back plate has a plurality of second rotating blocks fixedly connected at the bottom at equal intervals, the first rotating blocks and the second rotating blocks are interlaced, the rotating shaft slides through the outer surfaces of the plurality of first rotating blocks and the second rotating blocks and extends to the other side, both ends of the rotating shaft are threadedly connected with nuts, and the end face of the nut is tightly fitted with the outer surface of the outermost first rotating block.

[0006] Preferably, the top of the seat plate is bent upward near the front side, and the outer surface of the back plate is bent forward.

[0007] Preferably, the end surfaces of opposite sides of the two nuts are provided with a plurality of first anti-slip grooves at equal intervals, and the plurality of first anti-slip grooves are radially distributed on the end surfaces of the nuts.

[0008] Preferably, a plurality of second anti-slip grooves are equidistantly formed on the outer surface of the nut, and the plurality of second anti-slip grooves are radially distributed on the outer surface of the nut.

[0009] Preferably, a limiting plate is fixedly installed on the rear surface of the seat board, the front surface of the limiting plate abuts against the rear surface of the backrest board, and a handle groove is formed in the outer surface of the limiting plate near the top.

[0010] Preferably, a first silica gel plate is adhesively connected to the top of the seat board, and a plurality of first air holes with overlapping positions are arranged on the top of the first silica gel plate and the seat board.

[0011] Preferably, a second silica gel plate is adhesively connected to the front surface of the backrest board near the upper part, and a plurality of second air holes with overlapping positions are arranged on the outer surface of the second silica gel plate and the backrest board.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0013] 1. In the present utility model, after the nut is rotated, the first rotating block and the second rotating block can rotate flexibly on the surface of the rotating shaft. When the backrest board is rotated forward to be attached to the surface of the seat board, and then the nut is tightened again. At this time, under the action of friction and extrusion, the backrest board is fixed again, thereby completing the folding and storage of the backrest board. After folding, the overall size is small, and the top of the limiting plate protrudes slightly. At this time, it is convenient to carry the folded lumbar support pillow through the handle groove, solving the problem that a large amount of space is required during transportation, storage and carrying, and it is only suitable for use in fixed places, and improving the practicability.

[0014] 2. In the present utility model, by pasting the first silica gel plate and the second silica gel plate on the top of the seat board and the front side of the backrest board, using the soft characteristics of silica gel, the comfort of the user's buttocks and waist during use is improved. And by providing the first air holes and the second air holes, the device has good air permeability during use, avoiding the problem that it is difficult to sweat when the first silica gel plate and the second silica gel plate are in close contact with the body, and further improving the use comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a folded three-dimensional view of a folding type lumbar support pillow proposed by the present utility model;

[0016] Figure 2 is an unfolded three-dimensional view of a folding type lumbar support pillow proposed by the present utility model;

[0017] Figure 3 is an exploded view of a folding type lumbar support pillow proposed by the present utility model;

[0018] Figure 4 is a schematic structural view of the rotating shaft of a folding type lumbar support pillow proposed by the present utility model.

[0019] Legend: 1. Seat board; 11. First rotating block; 12. First silicone plate; 13. First ventilation hole; 2. Backrest; 21. Second rotating block; 22. Second silicone plate; 23. Second ventilation hole; 3. Limiting plate; 31. Handle groove; 4. Rotating shaft; 41. Nut; 42. First anti-slip pattern; 43. Second anti-slip pattern. Detailed implementation

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0022] Embodiment 1: As Figures 1 - 4 shown, the present invention provides a foldable lumbar support pillow, which includes a seat board 1, a backrest 2 and a rotating shaft 4. The seat board 1 is L-shaped and is fixedly connected with a plurality of first rotating blocks 11 at equal intervals on the top. The bottom of the backrest 2 is fixedly connected with a plurality of second rotating blocks 21 at equal intervals. The first rotating blocks 11 and the second rotating blocks 21 are staggered and inserted. The rotating shaft 4 slides through the outer surfaces of a plurality of first rotating blocks 11 and second rotating blocks 21 and extends to the other side. Both ends of the rotating shaft 4 are threadedly connected with nuts 41. The end face of the nut 41 is in close contact with the outer surface of the outermost first rotating block 11. The position of the top of the seat board 1 near the front side is bent upward, and the outer surface of the backrest 2 is bent forward. A plurality of first anti-slip patterns 42 are equally spaced on the opposite side end faces of the two nuts 41, and the plurality of first anti-slip patterns 42 are radially distributed on the end face of the nut 41. A plurality of second anti-slip patterns 43 are equally spaced on the outer surface of the nut 41, and the plurality of second anti-slip patterns 43 are radially distributed on the outer surface of the nut 41. A limiting plate 3 is fixedly installed on the rear surface of the seat board 1. The front surface of the limiting plate 3 abuts against the rear surface of the backrest 2. A handle groove 31 is opened at the position near the top of the outer surface of the limiting plate 3.

[0023] The effect achieved by the entire Embodiment 1 is that when the device is in use, after simply rotating to loosen the nut 41, the first rotating block 11 and the second rotating block 21 can rotate relative to each other easily. At this time, hold the seat plate 1 with one hand and lift the backrest plate 2 upward with the other hand. When the rear surface of the backrest plate 2 abuts against the front side of the limiting plate 3, it is done. At this time, the seat plate 1 and the backrest plate 2 form an L-shaped lumbar support pillow. Then, after tightening the nut 41, the backrest plate 2 can be fixed under the action of friction and extrusion force. After that, it can be placed on the seat for use. Moreover, when the nut 41 is rotated to enable the first rotating block 11 and the second rotating block 21 to rotate flexibly on the surface of the rotating shaft 4, the backrest plate 2 is rotated forward to fit with the surface of the seat plate 1, and then the nut 41 is tightened again. At this time, the backrest plate 2 is fixed again under the action of friction and extrusion force, thus completing the folding and storage of the backrest plate 2. After folding, the overall size is smaller, and the top of the limiting plate 3 protrudes slightly. At this time, the handle groove 31 facilitates the carrying of the folded lumbar support pillow, solving the problem that a large amount of space is required during transportation, storage, and carrying, and it is only suitable for use in fixed places, improving the practicability. At the same time, the design of the limiting plate 3 plays a role in restricting the maximum rotation angle of the backrest plate 2, ensuring the firmness during use after unfolding. The first anti-slip pattern 42 on the end face of the nut 41 increases the friction between the nut 41 and the surface of the first rotating block 11, avoiding the problem of self-rotation and loosening. The design of the second anti-slip pattern 43 has the effect of facilitating the pinching of the nut 41 for rotation.

[0024] Embodiment 2: As Figures 1 - 4 shown, a first silicone plate 12 is adhesively connected to the top of the seat plate 1. Multiple first ventilation holes 13 with overlapping positions are arranged on the top of the first silicone plate 12 and the seat plate 1. A second silicone plate 22 is adhesively connected to the position near the upper part of the front surface of the backrest plate 2. Multiple second ventilation holes 23 with overlapping positions are arranged on the outer surface of the second silicone plate 22 and the backrest plate 2.

[0025] The effect achieved by the entire Embodiment 2 is that by pasting the first silicone plate 12 and the second silicone plate 22 on the top of the seat plate 1 and the front side of the backrest plate 2, using the soft characteristics of silicone, the comfort of the user's buttocks and waist during use is improved. And by providing the first ventilation holes 13 and the second ventilation holes 23, the device has good air permeability during use, avoiding the problem that it is difficult to sweat when the first silicone plate 12 and the second silicone plate 22 are in close contact with the body, further improving the use comfort.

[0026] Working principle: When this device is in use, only by turning to loosen the nut 41 can the first rotating block 11 and the second rotating block 21 rotate relative to each other easily. At this time, hold the seat plate 1 with one hand and lift the backrest plate 2 upward with the other hand. When the rear surface of the backrest plate 2 abuts against the front side of the limiting plate 3, it is okay. At this time, the seat plate 1 and the backrest plate 2 form an L-shaped lumbar support pillow. Then, after tightening the nut 41, the fixing of the backrest plate 2 can be completed under the action of friction and extrusion force. After that, place it on the seat to use. Moreover, when the nut 41 is rotated to make the first rotating block 11 and the second rotating block 21 rotate flexibly on the surface of the rotating shaft 4, rotate the backrest plate 2 forward to make it fit with the surface of the seat plate 1, and then tighten the nut 41 again. At this time, the backrest plate 2 is fixed again under the action of friction and extrusion force, thus completing the folding and storage of the backrest plate 2. After folding, the overall size is relatively small, and the top of the limiting plate 3 protrudes slightly. At this time, it is convenient to carry the folded lumbar support pillow through the handle groove 31, solving the problem that a large amount of space is required during transportation, storage, and carrying, and it is only suitable for use in fixed places, improving the practicability. Moreover, by pasting the first silica gel plate 12 on the top of the seat plate 1 and the second silica gel plate 22 on the front side of the backrest plate 2, using the soft characteristic of silica gel, the comfort of the user's buttocks and waist during use is improved. And by setting the first ventilation holes 13 and the second ventilation holes 23, the device has good air permeability during use, avoiding the problem that it is difficult to sweat when the first silica gel plate 12 and the second silica gel plate 22 are in close contact with the body, and further improving the use comfort.

[0027] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A foldable lumbar support pillow, comprising a seat board (1), a back board (2) and a rotating shaft (4), characterized in that: The seat board (1) is L-shaped, and a plurality of first rotating blocks (11) are fixedly connected to the top at equal intervals. A plurality of second rotating blocks (21) are fixedly connected to the bottom of the backrest board (2) at equal intervals. The first rotating blocks (11) and the second rotating blocks (21) are staggered and inserted. The rotating shaft (4) slidably penetrates the outer surfaces of the plurality of first rotating blocks (11) and the second rotating blocks (21) and extends to the other side. Both ends of the rotating shaft (4) are threadedly connected with nuts (41), and the end faces of the nuts (41) are in close contact with the outer surfaces of the outermost first rotating blocks (11).

2. The foldable lumbar support pillow according to claim 1, characterized in that: The top of the seat board (1) is bent upward near the front side, and the outer surface of the backrest board (2) is bent forward.

3. The foldable lumbar support pillow according to claim 2, wherein: A plurality of first anti-slip lines (42) are equidistantly arranged on the opposite side end faces of the two nuts (41), and the plurality of first anti-slip lines (42) are radially distributed on the end faces of the nuts (41).

4. The foldable lumbar support cushion according to claim 3, wherein: A plurality of second anti-slip lines (43) are equidistantly arranged on the outer surface of the nut (41), and the plurality of second anti-slip lines (43) are radially distributed on the outer surface of the nut (41).

5. The foldable lumbar support pillow according to claim 4, characterized in that: A limiting plate (3) is fixedly installed on the rear surface of the seat board (1). The front surface of the limiting plate (3) abuts against the rear surface of the backrest board (2). A handle groove (31) is opened at a position near the top of the outer surface of the limiting plate (3).

6. The foldable lumbar support cushion according to claim 5, wherein: A first silica gel plate (12) is adhesively connected to the top of the seat board (1). A plurality of first ventilation holes (13) with overlapping positions are arranged between the first silica gel plate (12) and the top of the seat board (1).

7. The foldable lumbar support cushion according to claim 6, wherein: A second silica gel plate (22) is adhesively connected to the front surface of the backrest board (2) near the upper part. A plurality of second ventilation holes (23) with overlapping positions are arranged between the second silica gel plate (22) and the outer surface of the backrest board (2).

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