CN211242493U

CN211242493U - Novel headrest adjusting device

Info

Publication number: CN211242493U
Application number: CN201922235450.XU
Authority: CN
Inventors: 徐荣
Original assignee: Huizhou Silian Intelligent Household Co ltd
Current assignee: Huizhou Silian Intelligent Household Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-08-14
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to a novel headrest adjusting device, which comprises a base, a bracket fixedly connected on the base, a first connecting piece, a second connecting piece, a third connecting piece, a fourth connecting piece and a top plate fixedly connected with a headrest; two sliding grooves are arranged on the bracket; the upper end and the lower end of the first connecting piece are correspondingly hinged with the lower end of the second connecting piece and the lower part of the bracket; the upper end and the lower end of the third connecting piece are correspondingly hinged with the lower part of the top plate and the upper end of the second connecting piece; the front end of the fourth connecting piece is hinged to the lower part of the top plate, the fourth connecting piece is also fixedly connected with a driving device and two sliding shafts arranged at intervals, the two sliding shafts are arranged at the lower part of the fourth connecting piece and correspondingly arranged in the two sliding grooves in a sliding manner, and the fourth connecting piece is hinged to the middle part of the second connecting piece; the length of each sliding groove is the same as the spacing distance between the two sliding shafts. The utility model discloses a transmission is smooth and easy, and sound construction slides through the matching of two sliding shafts and spout, has guaranteed gliding steadiness.

Description

Novel headrest adjusting device

Technical Field

The utility model relates to a household articles, especially a headrest adjusting device that structure is firm, can not rock.

Background

The travelling comfort of life, furniture household articles's convenience all is people's needs, people are when having a rest on the sofa after tired one day, the head all can lean on and rest on the sofa backward, and current sofa most does not set up the headrest, all can make the head unsettled when the head is leaned on backward, can not make the head have the dependence and obtain releiving, people can only adopt the mode of holding the pillow behind the brain for comfortable, it is inconvenient to use, there is the headrest that has of sofa, adapt to the head position through the position of adjusting the headrest, but because the problem of adjusting the structure, the unstable structure, in the regulation even in use the headrest all can produce and rock, bring not good use experience, and also can have the fragile problem of atress.

SUMMERY OF THE UTILITY MODEL

To the current not enough, the utility model provides a headrest adjusting device that the structure is firm, can not rock.

The utility model provides a technical scheme that its technical problem adopted is:

a novel headrest adjusting device comprises a base, a bracket fixedly connected to the base, a first connecting piece, an arc-shaped second connecting piece, an S-shaped third connecting piece, a fourth connecting piece with an arc-shaped head and a top plate fixedly connected with a headrest; two strip-shaped sliding grooves which are arranged on the same axis and are respectively positioned at the upper part and the lower part of the bracket are arranged on the bracket in the direction vertical to the base; the upper end and the lower end of the first connecting piece are correspondingly hinged with the lower end of the second connecting piece and the lower part of the bracket, and the hinged position of the first connecting piece and the bracket corresponds to the bottom end of the sliding chute at the lower part of the bracket on the bracket; the upper end and the lower end of the third connecting piece are correspondingly hinged with the lower part of the top plate and the upper end of the second connecting piece; the fourth connecting piece is hinged to the lower portion of the top plate at the front end of the arc-shaped head portion and is located on the two sides of the top plate together with the third connecting piece respectively, the fourth connecting piece is further fixedly connected with a driving device for driving the fourth connecting piece to move up and down and two sliding shafts arranged at intervals, the two sliding shafts are arranged on the lower portion of the fourth connecting piece and are correspondingly arranged in the two sliding grooves of the support in a sliding mode, and the back face of the surface, corresponding to the sliding shafts, of the fourth connecting piece is hinged to the middle portion of the second connecting piece together with the second connecting piece; the length of each sliding groove is equal to the spacing distance between the two sliding shafts.

Preferably, the bending direction of the head portion of the fourth link is the same as the bending direction of the third link.

Preferably, a limiting column for limiting the rotation angle of the top plate is arranged above and next to the hinged position of the top plate and the hinged position of the fourth connecting piece.

Preferably, the sliding groove is a strip-shaped through hole penetrating through the side wall of the bracket, the sliding shaft is a sliding part with a T-shaped section, and the lower end of the sliding shaft penetrates through the strip-shaped through hole to be connected and fixed with the fourth connecting piece.

Preferably, the rotation angle of the second connecting piece relative to the bracket is 90 to 210 degrees; the sliding distance of the sliding shaft is 0 to 80 mm.

Preferably, the driving device is arranged in the middle of the fourth connecting piece.

Preferably, the fourth connecting member is connected with the driving device through a connecting arm fixedly arranged in the middle of the fourth connecting member.

Preferably, the driving device is a driving motor, a cross bar is fixedly connected to a driving shaft of the driving motor, and the cross bar is fixedly connected with the fourth connecting piece.

Preferably, the first connecting piece is a strip-shaped connecting piece in a step shape, the length of the strip-shaped connecting piece does not exceed the length of the sliding groove, the lower portion of the first connecting piece is tightly attached to the surface of the support and hinged with the support, and the upper portion of the first connecting piece is located far away from the surface of the support.

Preferably, the first connecting member and the third connecting member are hinged at two opposite sides of the second connecting member.

The beneficial effects of the utility model reside in that: the utility model discloses a well drive arrangement drive fourth connecting piece upward movement, the fourth connecting piece drives second connecting piece and roof upward movement, the second connecting piece just rotates and promotes third connecting piece upward movement relatively first connecting piece, the third connecting piece then promotes the roof and rotates relatively the fourth connecting piece, the roof just drives rather than the headrest of fixed connection rise and rotate angle regulation, in whole structure spout be set up on same axis lie in support upper and lower portion two spouts, the sliding shaft matches and glidingly establishes in the spout, both cooperations just limit the slip direction of whole structure, the spout has limited the side-to-side rocking of sliding shaft again, the connection structure of the connection between each connecting piece simultaneously, second connecting piece and fourth connecting piece become the cross structure, first connecting piece, form similar parallel structure between third connecting piece and the fourth connecting piece, stable in structure and the dispersion that can be fine exert force, the problem that the rock and the stress are uneven and easy to damage is solved while the adjustment is convenient.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the extended embodiment of the present invention;

part names and serial numbers in the figure: 1-base 2-support 20-chute 3-first connecting piece 4-second connecting piece 5-third connecting piece 6-fourth connecting piece 60-sliding shaft 61-connecting arm 7-top plate 70-spacing column 8-driving motor 80-cross bar.

Detailed Description

To clearly illustrate the objects, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, which are for clarity and complete description. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of protection of the present invention. Furthermore, directional phrases used in the present invention, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., refer only to the directions of the attached drawings, and are used for better and clearer illustration and understanding of the present invention, and do not indicate or imply orientations which the present invention must have, and therefore, should not be construed as limiting the present invention.

The embodiment of the utility model is shown in fig. 1 to 2, a novel headrest adjusting device, which comprises a base 1, a bracket 2 fixedly connected on the base 1, a first connecting piece 3, an arc-shaped second connecting piece 4, an S-shaped third connecting piece 5, a fourth connecting piece 6 with an arc-shaped head, and a top plate 7 fixedly connected with a headrest; the base 1 can be a conventional base with any shape, preferably a long rod-shaped structure, so that a plurality of adjusting structures can be arranged on the base 1 according to the situation, the support 2 can be a conventional flat support frame, so that all parts can be well arranged and installed on the surface of the support, the support is connected to a sofa or other household articles which are provided with a headrest and need to adjust the headrest through the base 1, and the whole headrest adjusting device is supported, and the support 2 is provided with two strip-shaped sliding grooves 20 which are respectively positioned at the upper part and the lower part of the support 2 on the same axis in the direction perpendicular to the base 1, so that the two sliding grooves 20 are vertically arranged and are not communicated with each other, and the sliding direction is determined to slide up and down along the axis; the upper end and the lower end of the first connecting piece 3 are correspondingly hinged with the lower end of the second connecting piece 4 and the lower part of the bracket, and the hinged position of the first connecting piece 3 and the bracket 2 corresponds to the bottom end of the sliding chute 20 at the lower part of the bracket 2 on the bracket 2, namely the hinged position of the first connecting piece 3 and the bracket 2 and the bottom end of the sliding chute 20 at the lower part of the bracket 2 are parallel, so that the transmission of the fourth connecting piece 6 sliding relative to the sliding chute 20 is facilitated; the upper end and the lower end of the third connecting piece 5 are correspondingly hinged with the lower part of the top plate 7 and the upper end of the second connecting piece 4, so that a chain structure is formed among the first connecting piece 3, the second connecting piece 4 and the third connecting piece 5, and under the driving of the fourth connecting piece 6, the chain structure can be extended or shortened through each hinge point, so that the top plate 7 is pushed to be lifted and lowered, at the moment, the first connecting piece 3 and the third connecting piece 5 are preferably hinged on two opposite sides of the second connecting piece 4 correspondingly, so that the connection among all the parts is more compact, the structure is firmer, and the transmission is smoother; the fourth connecting piece 6 is hinged at the lower part of the top plate 7 at the front end of the arc-shaped head part and is respectively positioned at two sides of the top plate 7 together with the third connecting piece 5, the third connecting piece 5 can push the top plate 7 to turn after the fourth connecting piece 6 is lifted to a corresponding position, at the moment, the bending direction of the arc-shaped head part of the fourth connecting piece 6 is preferably the same as the turning direction of the top plate 7, the fourth connecting piece 6 is also fixedly connected with a driving device for driving the fourth connecting piece to move up and down and two sliding shafts 60 arranged at intervals, the driving device is preferably arranged at the middle part of the fourth connecting piece 6, so that the driving force can be transmitted to two ends of the fourth connecting piece 6 in a well balanced manner so as to drive other parts to move, meanwhile, the fourth connecting piece 6 is connected with the driving device through a connecting arm 61 fixedly arranged at the middle part of the fourth connecting piece 6, so that the connection of the fourth connecting piece 6 and other parts can not be influenced and, the connection and use are convenient; the two sliding shafts 60 are arranged at the lower part of the fourth connecting piece 6 and are correspondingly arranged in the two sliding grooves 20 of the bracket 2 in a sliding manner, the fourth connecting piece 6 is hinged with the second connecting piece 4 at the middle part of the second connecting piece 4 at the back corresponding to the surface where the sliding shafts 60 are arranged, so that a similar parallel structure is formed among the first connecting piece 3, the third connecting piece 5 and the fourth connecting piece 6, the second connecting piece 4 and the fourth connecting piece 6 form an intersecting structure, the fourth connecting piece 6 is positioned between the first connecting piece 3 and the second connecting piece 4, the structure is stable, the applied force can be well dispersed, the problems of shaking and damage caused by uneven stress are solved while adjustment is facilitated, in the whole structure, the sliding grooves 20 are the two sliding grooves 20 which are arranged on the same axis and positioned at the upper part and the lower part of the bracket 2, the sliding shafts 60 are arranged in the sliding grooves 20 in a matching manner, and the sliding direction of the whole structure, the sliding chute 20 limits the left-right shaking of the sliding shaft 60, so that the structure is more stable, and the shaking is avoided in the adjustment and use; the length of each slide groove 20 is equal to the distance between the two slide shafts 60, so that the same sliding distance, i.e., the synchronization of the sliding motion, is ensured. When the headrest adjusting device is used, the driving device firstly drives the fourth connecting piece 6 to move upwards, the fourth connecting piece 6 drives the second connecting piece 4 and the top plate to move upwards, the second connecting piece 4 rotates relative to the first connecting piece 3 and pushes the third connecting piece 5 to move upwards, the third connecting piece 5 further pushes the top plate 7 to rotate relative to the fourth connecting piece 6, and the top plate 7 drives the headrest fixedly connected with the top plate to rise and rotate for adjusting the angle.

In a further improvement, as shown in fig. 1 and 2, the head of the fourth connecting element 6 is bent in the same direction as the third connecting element 5, so that the bending direction of the two elements is the same, the installation space of the whole sofa is reduced, the sofa is convenient to install, the strength of the sofa is maintained, the installation of the two elements on the lower part of the top plate 7 is convenient due to the same direction, the lower part of the top plate 7 can be hinged with the two elements when the lower part of the top plate 7 has a relatively small surface, and the turning direction of the top plate 7 can be limited by the bending direction of the two elements. In order to position the top plate 7 during turning and avoid the use problem caused by over-head turning, a limiting column 70 for limiting the rotation angle of the top plate 7 is arranged above the hinged position of the top plate 7 and close to the hinged position, wherein the hinged position is hinged to the fourth connecting piece 6, so that when the top plate 7 is turned to the position with the largest angle, the top plate cannot be turned any more due to the blocking of the limiting column 70, and the use problem is avoided.

In a further improvement, as shown in fig. 1 and 2, the sliding groove 20 is a strip-shaped through hole penetrating through the side wall of the bracket 2, the sliding shaft 60 is a sliding member with a T-shaped cross section, the lower end of the sliding shaft 60 penetrates through the strip-shaped through hole to be connected and fixed with the fourth connecting member 6, with such a structure, the sliding shaft 60 also plays a role of connecting the bracket 2 and the fourth connecting member 6, the bottom surface of the upper part of the sliding shaft 60 is tightly attached to the outer side of the bracket 2, the lower part of the sliding shaft passes through the sliding groove 20 to be connected and fixed with the fourth connecting member 6, the length of the lower part of the sliding shaft can be set according to the tightness degree of connection between the bracket 2 and the fourth connecting member 6, the bracket 2 and the fourth connecting member 6 can be connected and fixed by flat-headed screws.

In a further improvement, as shown in fig. 1 and 2, the first connecting member 3 is a strip-shaped connecting member in a step shape and has a length not exceeding the length of the sliding groove 20, the lower part of the first connecting member 3 is closely attached to the surface of the bracket 2 and is hinged to the bracket 2, and the upper part of the first connecting member 3 is located at a position far away from the surface of the bracket 2, so that after the first connecting member 3 is hinged to the bracket 2, the lower part of the first connecting member 3 is in contact with the surface of the bracket 2, and the upper part of the first connecting member 3 is spaced from the surface of the bracket 3, and after the upper end of the first connecting member 3 is hinged to the second connecting member 4, the member for hinging does not touch the surface of the bracket 2, and if the hinging is performed by using a bolt as a rotating shaft, the surface of the bracket 2 is not scraped during the relative rotation between the hinged members.

In a further improvement, the rotation angle of the second connecting piece 4 relative to the bracket is 90 to 210 degrees; the sliding distance of the sliding shaft 60 is 0 to 80 mm. Therefore, the second connecting piece 4 can be adjusted randomly within the angle range, the top plate 7 is pushed to rotate by the third connecting piece 5, the top plate 7 drives the headrest to be adjusted within the height and the angle range, the headrest can be in any state from vertical to slightly backward, the requirement for head loosening is met, and the sliding distance of the sliding shaft 60 can be ensured by limiting the length of the sliding chute 20 or limiting the driving stroke of the driving motor when the driving motor is used for driving.

Further improvement, as shown in fig. 1 and 2, the driving device is a driving motor 8, a cross rod 80 is fixedly connected to a driving shaft of the driving motor 8, the cross rod 80 is fixedly connected with a fourth connecting piece 6, so that the operation is convenient through the driving motor 8, the use is convenient, meanwhile, the cross rod 80 is fixed to the driving shaft of the driving motor 8, when the driving shaft is driven to stretch by the driving motor 8, the driving shaft drives the cross rod 80 to stretch, meanwhile, a plurality of adjusting devices can be connected through the cross rod 80, two adjusting devices can be symmetrically arranged at the left end and the right end of the cross rod 80 according to different conditions, or one adjusting device is arranged in the middle of the cross rod 80, or a plurality of adjusting devices are arranged at any position of the cross rod 80 at intervals, and the use is convenient and.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. The utility model provides a novel headrest is adjusted device which characterized in that: comprises a base (1), a bracket (2) fixedly connected on the base (1), a first connecting piece (3), an arc-shaped second connecting piece (4), an S-shaped third connecting piece (5), a fourth connecting piece (6) with an arc-shaped head and a top plate (7) fixedly connected with a headrest; two strip-shaped sliding grooves (20) which are respectively positioned at the upper part and the lower part of the bracket (2) on the same axis are arranged on the bracket (2) in the direction vertical to the base (1); the upper end and the lower end of the first connecting piece (3) are correspondingly hinged with the lower end of the second connecting piece (4) and the lower part of the bracket (2), and the hinged position of the first connecting piece (3) and the bracket (2) is arranged on the bracket (2) and corresponds to the bottom end of the sliding chute (20) at the lower part of the bracket (2); the upper end and the lower end of the third connecting piece (5) are correspondingly hinged with the lower part of the top plate (7) and the upper end of the second connecting piece (4); the fourth connecting piece (6) is hinged to the lower portion of the top plate (7) at the front end of the arc-shaped head portion and is respectively located on two sides of the top plate (7) together with the third connecting piece (5), the fourth connecting piece (6) is further fixedly connected with a driving device for driving the fourth connecting piece to move up and down and two sliding shafts (60) arranged at intervals, the two sliding shafts (60) are arranged on the lower portion of the fourth connecting piece (6) and are correspondingly arranged in the two sliding grooves (20) of the support (2) in a sliding mode, and the back face of the surface, corresponding to the sliding shafts (60), of the fourth connecting piece (6) is hinged to the middle portion of the second connecting piece (4) through the second connecting piece (4); the length of each sliding chute (20) is the same as the spacing distance between the two sliding shafts (60).

2. The novel headrest adjusting device according to claim 1, characterized in that: the bending direction of the head of the fourth connecting piece (6) is the same as that of the third connecting piece (5).

3. The novel headrest adjusting device according to claim 1, characterized in that: and a limiting column (70) for limiting the rotation angle of the top plate (7) is arranged above the hinged position of the top plate (7) and the fourth connecting piece (6) and is close to the hinged position.

4. The novel headrest adjusting device according to claim 1, characterized in that: the sliding groove (20) is a strip-shaped through hole penetrating through the side wall of the support (2), the sliding shaft (60) is a sliding piece with a T-shaped section, and the lower end of the sliding shaft (60) penetrates through the strip-shaped through hole to be connected and fixed with the fourth connecting piece (6).

5. The novel headrest adjusting device according to claim 1, characterized in that: the rotation angle of the second connecting piece (4) relative to the bracket (2) is 90-210 degrees; the sliding distance of the sliding shaft (60) is 0 to 80 mm.

6. The novel headrest adjusting device according to claim 1, characterized in that: the driving device is arranged in the middle of the fourth connecting piece (6).

7. The novel headrest adjusting device according to claim 6, characterized in that: the fourth connecting piece (6) is connected with the mounting driving device through a connecting arm (61) fixedly arranged in the middle of the fourth connecting piece (6).

8. The novel headrest adjusting device according to claim 1, characterized in that: the driving device is a driving motor (8), a cross rod (80) is fixedly connected to a driving shaft of the driving motor (8), and the cross rod (80) is fixedly connected with the fourth connecting piece (6).

9. The novel headrest adjusting device according to claim 1, characterized in that: first connecting piece (3) are the bar connecting piece that becomes the ladder shape and length are no longer than the length of spout (20), the lower part of first connecting piece (3) is hugged closely support (2) surface and is articulated mutually with support (2) and makes the upper portion of first connecting piece (3) be in the position of keeping away from support (2) surface.

10. The novel headrest adjusting device according to claim 1, characterized in that: the first connecting piece (3) and the third connecting piece (5) are correspondingly hinged on two opposite sides of the second connecting piece (4).