CN114304973A - Adjustable headrest support - Google Patents

Abstract

The invention discloses an adjustable headrest bracket, which is characterized in that: comprises a backup plate and a bracket group; the support group comprises a positioning rod, a front rotating rod, a rear rotating rod and a linkage rod; the front rotating rod and the rear rotating rod are mutually crossed, the rear rotating rod is provided with a guide groove extending along the length direction of the rear rotating rod, and the front rotating rod is provided with a guide pin matched with the guide groove; the lower end of the front rotating rod is pivoted to the front end of the positioning rod, the upper end of the front rotating rod is pivoted to the lower end of the linkage rod, the upper end of the linkage rod is pivoted to the rear side of the backup plate, the lower end of the rear rotating rod is pivoted to the rear end of the positioning rod, and the upper end of the rear rotating rod is pivoted to the front side of the backup plate. The head rest has the function of lifting in the adjusting process, so that the comfort of a user with cervical vertebra problems in use can be further improved.

Description

Adjustable headrest support

Technical Field

The invention relates to the field of sofa structures, in particular to an adjustable headrest support.

Background

To increase the comfort of the sofa, a variable position headrest is typically mounted on the top of the sofa backrest and a variable position lumbar backrest is mounted in the middle of the backrest, the position of the headrests relative to the backrest being adjustable to adjust the sofa to a relatively comfortable position during everyday use.

In the actual use process, the position of the headrest can only be adjusted by swinging around the circle center in a circumferential manner, namely, the adjustment mode is simple and monotonous, and the comfort can not be brought to users with poor cervical vertebra in the adjustment process. Therefore, there is room for further improvement in the existing commercial headrest adjusting structure.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the adjustable headrest support, the headrest has the action of lifting in the adjusting process, and the comfort of a user with cervical vertebra problems in use can be further improved.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a regulation formula is leaned on head support, characterized by: comprises a backup plate and a bracket group;

the support group comprises a positioning rod, a front rotating rod, a rear rotating rod and a linkage rod;

the front rotating rod and the rear rotating rod are mutually crossed, the rear rotating rod is provided with a guide groove extending along the length direction of the rear rotating rod, and the front rotating rod is provided with a guide pin matched with the guide groove;

the lower end of the front rotating rod is pivoted to the front end of the positioning rod, the upper end of the front rotating rod is pivoted to the lower end of the linkage rod, the upper end of the linkage rod is pivoted to the rear side of the backup plate, the lower end of the rear rotating rod is pivoted to the rear end of the positioning rod, and the upper end of the rear rotating rod is pivoted to the front side of the backup plate.

Preferably, the lower surface of the backup plate is connected with a connecting rod, and the upper end of the rear rotating rod and the upper end of the linkage rod are respectively pivoted on the front end and the rear end of the connecting rod.

Preferably, the set of brackets has two sets and is arranged in a mirror image.

Preferably, a first motor pipe, a second motor pipe and a push rod motor are further arranged between the two support groups;

two ends of the first motor pipe are respectively fixed on the two positioning rods, and two ends of the second motor pipe are respectively fixed on the two front rotating rods;

the two ends of the push rod motor are respectively pivoted on the first motor pipe and the second motor pipe.

Preferably, the positioning rod is bent to form a first connecting piece located on the inner side and a second connecting piece located on the outer side.

The invention has the advantages that: under the matching action of the guide rod and the guide groove, the whole backup plate can be lifted or moved downwards in the overturning and adjusting process of the rear side of the backup plate, so that the height adjusting effect is achieved, and the comfort of a user who feels uncomfortable in cervical vertebra when the cervical vertebra cervical.

Drawings

Fig. 1 is a schematic view of an adjustable headrest bracket provided in this embodiment in a folded state;

fig. 2 is a schematic view of the adjustable headrest bracket provided in this embodiment in an open state.

Detailed Description

The adjustable headrest frame of the present invention will be further described with reference to fig. 1-2.

The utility model provides a regulation formula is leaned on head support, characterized by: comprises a backup plate 3 and a bracket group 2. The support group 2 comprises a positioning rod 21, a front rotating rod 23, a rear rotating rod 22 and a linkage rod 24. As shown in fig. 1, the front rotating lever 23 and the rear rotating lever 22 intersect with each other, and the rear rotating lever 22 has a guide groove 221 extending in the longitudinal direction of the rear rotating lever 22, and the front rotating lever 23 has a guide pin engaged with the guide groove 221. The lower end of the front rotating rod 23 is pivoted to the front end of the positioning rod 21, the upper end of the front rotating rod is pivoted to the lower end of the linkage rod 24, the upper end of the linkage rod 24 is pivoted to the rear side of the backup plate, the lower end of the rear rotating rod 22 is pivoted to the rear end of the positioning rod 21, and the upper end of the rear rotating rod is pivoted to the front side of the backup plate.

The upper surface of backup plate 3 is used for supplying the soft package installation of back head, has connecting rod 31 through bolted connection on the lower surface of backup plate 3, and the upper end of back dwang 22 and the upper end of trace 24 pin joint respectively is on connecting rod 31 front and back both ends.

The support group 2 has two groups and is arranged in a mirror image mode.

A first motor pipe 41, a second motor pipe 42 and a push rod motor (not shown in the attached drawings) are further arranged between the two support groups 2; two ends of the first motor tube 41 are respectively fixed on the positions, close to the front ends, of the two positioning rods 21 in a screwed or welded mode, and two ends of the second motor tube 42 are respectively fixed on the positions, close to the upper ends, of the two front rotary rods 23 in a welded or screwed mode; the two ends of the push rod motor are respectively pivoted on the pivoting plates 43 on the first motor tube 41 and the second motor tube 42.

In specific use, the backrest frame is arranged at the top position of the backrest frame. The backrest frame comprises two mounting plates 1, two groups of support groups 2 are fixed on the inner side walls of the two mounting plates 1 through corresponding positioning rods 21 respectively, and meanwhile, the backup plate 3 is located on the upper side of the mounting plates 1. The back plate 3 has an open position and a closed position with respect to the back frame. When the mounting plate is folded, the backup plate is parallel to the top surface of the mounting plate 1 and is supported on the top surface of the mounting plate 1; when the door is opened, the rear side of the backup plate 3 is turned forwards and is approximately vertical to the top surface of the mounting frame, and the lower side of the backup plate 3 in the state is abutted against the positioning groove 11 in the front side of the top of the mounting plate 1, so that balance is achieved.

The process from the folding position to the opening position comprises a front section opening process and a rear section opening process, in the front section opening process, the angle between the front rotating rod 23 and the positioning rod 21 is gradually increased to 45 degrees, and in the process, the upper end of the rear rotating rod 22 can swing backwards and upwards under the linkage of the guide rod and the guide groove 221, so that the backup plate 3 can be driven to be integrally lifted; in the process of opening the rear section, the included angle between the front rotating rod 23 and the positioning rod 21 is gradually increased from 45 degrees to about 90 degrees, and in the process, the upper end of the rear rotating rod 22 can swing forwards and downwards, so that the whole backup plate 3 can move downwards; on the contrary, when the back plate is moved from the opening position to the folding position, the whole back plate is lifted first and then is lowered. The opening and closing processes of the backup plate 3 can improve the comfort of a person with cervical vertebra discomfort leaning on the backup plate 3.

In the opening process, in order to avoid interference between the front rotating rod 23, the rear rotating rod 22, the linkage rod 24 and the mounting plate 1, the positioning rod 21 is bent and formed into a first connecting piece 211 located on the inner side and a second connecting piece 212 located on the outer side. The second connecting piece 212 located at the outer side is mounted on the mounting plate 1 by a bolt, and the first connecting plate located at the inner side is fixed with the first motor pipe 41. With this structure, the first connecting piece 211, the front rotating rod 23, the rear rotating rod 22, and the linkage rod 24 are isolated from the mounting plate 1, so as to avoid mutual interference.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (5)

1. The utility model provides a regulation formula is leaned on head support, characterized by: comprises a backup plate and a bracket group;

the support group comprises a positioning rod, a front rotating rod, a rear rotating rod and a linkage rod;

the front rotating rod and the rear rotating rod are mutually crossed, the rear rotating rod is provided with a guide groove extending along the length direction of the rear rotating rod, and the front rotating rod is provided with a guide pin matched with the guide groove;

the lower end of the front rotating rod is pivoted to the front end of the positioning rod, the upper end of the front rotating rod is pivoted to the lower end of the linkage rod, the upper end of the linkage rod is pivoted to the rear side of the backup plate, the lower end of the rear rotating rod is pivoted to the rear end of the positioning rod, and the upper end of the rear rotating rod is pivoted to the front side of the backup plate.

2. The adjustable headrest bracket as claimed in claim 1, wherein: the lower surface of the backup plate is connected with a connecting rod, and the upper end of the rear rotating rod and the upper end of the linkage rod are respectively pivoted on the front end and the rear end of the connecting rod.

3. The adjustable headrest bracket as claimed in claim 1, wherein: the support group has two groups and is arranged in a mirror image mode.

4. The adjustable headrest bracket as claimed in claim 3, wherein: a first motor pipe, a second motor pipe and a push rod motor are also arranged between the two groups of support groups;

two ends of the first motor pipe are respectively fixed on the two positioning rods, and two ends of the second motor pipe are respectively fixed on the two front rotating rods;

the two ends of the push rod motor are respectively pivoted on the first motor pipe and the second motor pipe.

5. The adjustable headrest bracket as claimed in claim 1, wherein: the locating lever bending set and form the first connection piece that is located the inboard and the second connection piece that is located the outside.

Images