CN217471565U

CN217471565U - Chair and waist rest adjusting device thereof

Info

Publication number: CN217471565U
Application number: CN202122371054.7U
Authority: CN
Inventors: 王江林; 刘磊; 王宗文
Original assignee: Anji Henglin Technology Development Co ltd
Current assignee: Anji Henglin Technology Development Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-09-23
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a chair and a waist rest adjusting device thereof, which comprises a waist rest plate and a connecting piece, wherein one end of the waist rest plate is fixedly connected with a chair back, the other end of the waist rest plate is fixedly connected with the connecting piece, the connecting piece is arranged on the chair back in a mode of being capable of moving up and down and is provided with a plurality of position gears, and the connecting piece is positioned at different position gears and can force the waist rest plate to have different forward convex bending radians; according to the technical scheme, the position of the connecting piece is adjusted to shift through the up-and-down movement of the connecting piece on the chair back, so that the purpose of adjusting the bending radian of the lumbar support plate is achieved, and the structure is simple.

Description

Chair and waist rest adjusting device thereof

Technical Field

The utility model belongs to the seat field, concretely relates to chair and waist leans on adjusting device thereof.

Background

In order to increase the comfort of the seat, the back-attaching performance of the seat back is absolutely one of the indispensable factors. Especially in the lumbar region, if the sitting posture is not properly supported, the patient will feel sore and aching in the back and may cause permanent injuries such as spinal deformity.

In the prior art documents, there are patents including taiwan publication No. I327901 "cushion adjustment system", No. I373317 "improvement of cushion structure for chair", etc. to discuss the problems. In the patent I327901, the seat back is inflated by a complicated air bag loop to change its curvature, so that the lumbar back of the seat occupant is supported, and although a certain effect can be achieved, the air bag loop is expensive to manufacture, and the air bag loop must be embedded in the seat back, which is difficult to repair and maintain if a failure or malfunction occurs.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a massage armchair and waist leans on adjusting device thereof, and this waist leans on adjusting device can make the bending curvature that the waist leaned on change to simple structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an adjusting device is leaned on to waist, includes waist backup plate and connecting piece, the one end and the back of the chair fixed connection of waist backup plate, the other end and the connecting piece fixed connection of waist backup plate, the connecting piece is installed on the back of the chair and has a plurality of positions and keep off the position with the mode that can reciprocate, the connecting piece is located different positions and keeps off the position and can force waist backup plate to have different bellied crooked radian forward.

Preferably, the connecting member is in a bow shape, the left and right ends of the connecting member are mounted on the seat back in a manner of being capable of moving up and down, the lower end of the waist back plate is fixedly connected with the middle part of the connecting member, and the middle part of the connecting member is located at the rear side of the left and right ends of the connecting member.

Preferably, the chair is further provided with a left guide piece and a right guide piece which are fixedly connected with the chair back, the guide pieces are provided with guide long holes in the vertical direction, and the left half section and the right half section of the connecting piece are respectively installed in the guide long holes in a sliding mode.

Preferably, the left end and the right end of the connecting piece extend out of the guide long hole, and the left end and the right end of the connecting piece are provided with handles.

Preferably, the chair is further provided with a fixing plate fixedly connected with the chair back, a gear block, a return spring and a plurality of gear parts, wherein the gear block and the gear parts are respectively installed on the fixing plate and the connecting piece, and the return spring is used for pushing the gear block to be respectively matched with the gear parts so that the connecting plate is provided with a plurality of position gears on the fixing plate.

Preferably, the connecting plate is further provided with a concave block, the concave block is fixedly connected with the connecting plate and matched with the rear surface of the connecting plate to form a through hole, and the fixing plate is partially positioned in the through hole and further matched with the connecting plate in a sliding mode.

Preferably, a first mounting groove is formed in the fixing plate, a plurality of open grooves with openings in an oblique upward direction are formed in the left side wall/right side wall of the first mounting groove, and the plurality of open grooves form the plurality of stopper portions;

the gear block is provided with a gear column, and the gear column can move out of the gear part.

Preferably, a second mounting groove is formed in the connecting plate, the stop block is rotatably mounted in the second mounting groove, and the return spring is mounted in the second mounting groove and can force the stop block to rotate or have a rotating trend; and in the rotation process of the gear block, the gear column moves out of or into the gear part.

A chair comprising a lumbar support adjustment device as described above.

The technical effect of the utility model, through the position fender position that reciprocates in order to adjust the connecting piece of connecting piece on the back of the chair, and then reach the purpose of adjusting the crooked radian of waist backup plate, simple structure.

Drawings

Fig. 1 is a first schematic structural view of the waist rest adjusting device of the present invention;

FIG. 2 is a schematic structural view of the waist rest adjusting device of the present invention;

fig. 3 is an installation schematic diagram of the stop block, the return spring and the second installation groove of the present invention;

fig. 4 is a schematic structural diagram of the fixing plate of the present invention.

Description of reference numerals: 1. a waist back plate; 2. a connecting member; 3. a guide member; 30. a guide long hole; 20. a handle; 4. a fixing plate; 5. a stop block; 6. a return spring; 40. a gear part; 7. a concave block; 41. a first mounting groove; 50. a gear post; 21. and a second mounting groove.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 and 2, a waist leans on adjusting device installs on the back of the chair, including waist backup plate 1 and connecting piece 2, the upper end and the back of the chair fixed connection of waist backup plate 1, the lower extreme and the 2 fixed connection of connecting piece of waist backup plate 1, connecting piece 2 is installed on the back of the chair and has a plurality of positions fender position with the mode that can reciprocate, connecting piece 2 is located different positions fender position and can force waist backup plate 1 to have different bellied bending radian forward.

Of course, in other embodiments, the lower end of the waist back plate 1 may be fixedly connected to the seat back, and the upper end of the waist back plate 1 may be fixedly connected to the connecting member 2.

Therefore, the position of the connecting piece 2 can be adjusted by moving the connecting piece 2 up and down on the chair back, and the aim of adjusting the bending radian of the waist back plate 1 is achieved.

In the embodiment of the invention, the connecting piece 2 is in an arch shape, the left end and the right end of the connecting piece 2 are arranged on the chair back in a manner of moving up and down, the lower end of the waist backing plate 1 is fixedly connected with the middle part of the connecting piece 2, and the middle part of the connecting piece 2 is positioned at the rear side of the left end and the right end of the connecting piece 2; the arrangement can make the bending radian of the waist back plate 1 more fit the back curve of a human body.

Preferably, the chair is further provided with a left guide part 3 and a right guide part 3 fixedly connected with the chair back, the guide parts 3 are provided with guide long holes 30 in the vertical direction, and the left half section and the right half section of the connecting piece 2 are respectively installed in the guide long holes 30 in a sliding mode.

More preferably, the left end and the right end of the connecting piece 2 both extend out of the guiding long holes 30, and the left end and the right end of the connecting piece 2 are both provided with a handle 20; by the arrangement, people can conveniently operate the connecting piece 2 to ascend and descend on the chair back, and further adjust the bending radian of the waist backing plate 1.

In the embodiment of the invention, a fixed plate 4 fixedly connected with the chair back, a stop block 5, a return spring 6 and a plurality of stop parts 40 are further provided, the stop block 5 and the plurality of stop parts 40 are respectively installed on the fixed plate 4 and the connecting piece 2, and the return spring 6 is used for pushing the stop block 5 to respectively cooperate with the plurality of stop parts 40 so that the connecting plate has a plurality of position stops on the fixed plate 4.

Further preferably, the fixing device is further provided with a concave block 7, the concave block 7 is fixedly connected with the connecting plate and matched with the rear surface of the connecting plate to form a through hole, and the fixing plate 4 is partially positioned in the through hole and further matched with the connecting plate in a sliding manner; thus, the back and forth movement between the fixing plate 4 and the connecting member 2 is restricted and the installation of the stopper 5 is completed at the same time.

Further preferably, as shown in fig. 4, a first mounting groove 41 is formed on the fixing plate 4, a plurality of open grooves with openings in an oblique upward direction are formed on a left side wall/a right side wall of the first mounting groove 41, and the plurality of open grooves form the plurality of retaining portions 40;

the gear block 5 is provided with a gear column 50, and the gear column 50 can move out of and into the gear portion 40.

Like this, when the crooked radian of waist backup plate 1 needs to be changed, only need with connecting piece 2 one section distance of rebound so that keep off position post 50 shifts out fender portion 40, then upwards or move down to other fender position with connecting piece 2 again, and then reach the purpose of adjusting the crooked radian of waist backup plate 1, it is very simple and convenient.

Still more preferably, as shown in fig. 3, a second mounting groove 21 is formed in the connecting plate, the stop block 5 is rotatably mounted in the second mounting groove 21, and the return spring 6 is mounted in the second mounting groove 21 and can force the stop block 5 to rotate or have a tendency to rotate; and during the rotation of the shift block 5, the shift post 50 moves out of or into the shift portion 40.

It should be noted that in other embodiments, the plurality of stop portions 40 may also be located on the connecting member 2 and the corresponding stop 5 is rotatably mounted on the fixing plate 4.

A chair comprising a lumbar support adjustment device as described above.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a waist leans on adjusting device, its characterized in that, includes waist backup plate (1) and connecting piece (2), the one end and the back of the chair fixed connection of waist backup plate (1), the other end and connecting piece (2) fixed connection of waist backup plate (1), connecting piece (2) are installed on the back of the chair and have a plurality of positions and keep off the position with the mode that can reciprocate, connecting piece (2) are located different positions and keep off the position and can force waist backup plate (1) to have different forward bellied crooked radians.

2. A lumbar support adjusting device according to claim 1, characterized in that the left and right ends of the connecting member (2) are mounted on the backrest in a manner of being able to move up and down, and the lower end of the lumbar support plate (1) is fixedly connected with the middle part of the connecting member (2).

3. A lumbar support adjusting device according to claim 1, characterized in that a left guiding member and a right guiding member (3) are provided, the left guiding member and the right guiding member are fixedly connected with the chair back, the guiding members (3) are provided with up-and-down guiding long holes (30), and the left half section and the right half section of the connecting member (2) are respectively slidably mounted in the guiding long holes (30).

4. A lumbar support adjusting device according to claim 1, characterized in that the left and right ends of the connecting member (2) extend out of the guiding slot (30), and the left and right ends of the connecting member (2) are provided with a handle (20).

5. A lumbar support adjustment device according to claim 1, characterized in that a fixing plate (4) fixedly connected to the seat back, a stop block (5), a return spring (6) and a plurality of stop portions (40) are further provided, the stop block (5) and the plurality of stop portions (40) are respectively mounted on the fixing plate (4) and the connecting member (2), and the return spring (6) is used for pushing the stop block (5) to respectively cooperate with the plurality of stop portions (40) so that the connecting plate has a plurality of position stops on the fixing plate (4).

6. A lumbar support adjustment device according to claim 5, characterized in that a female block (7) is provided, said female block (7) being fixedly connected to the connecting plate and cooperating with the rear surface of the connecting plate to form a through hole, said fixing plate (4) being partly located in said through hole and further cooperating with the connecting plate in a sliding manner.

7. The lumbar support adjusting device according to claim 5, wherein a first mounting groove (41) is formed on the fixing plate (4), a plurality of open grooves with an oblique upward opening direction are formed on the left/right side wall of the first mounting groove (41), and the plurality of open grooves form the plurality of blocking portions (40);

a gear column (50) is arranged on the gear block (5), and the gear column (50) can move out and into the gear part (40).

8. A lumbar support adjusting device according to claim 7, characterized in that a second mounting groove (21) is provided on the connecting plate, the stop block (5) is rotatably mounted in the second mounting groove (21), and the return spring (6) is mounted in the second mounting groove (21) and can force the stop block (5) to rotate or has a tendency to rotate; and during the rotation of the gear block (5), the gear column (50) moves out of or into the gear part (40).

9. A chair comprising a lumbar support adjustment device according to any of claims 1-8.