CN220369735U

CN220369735U - Multi-joint adjusting head load supporting assembly and chair

Info

Publication number: CN220369735U
Application number: CN202320498974.1U
Authority: CN
Inventors: 许翠如
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-15
Filing date: 2023-03-15
Publication date: 2024-01-23
Anticipated expiration: 2033-03-15

Abstract

The utility model discloses a multi-joint adjusting head load supporting assembly, which comprises a headrest main body, wherein the inner side of the headrest main body is fixedly connected with a cross beam, the outer wall of the cross beam is provided with a first rotating mechanism which is adjusted in a reciprocating manner along the length direction of the cross beam, two ends of the first rotating mechanism are provided with a pair of headrest catches, the far ends of the headrest catches are provided with a second rotating mechanism, two ends of the second rotating mechanism are provided with a pair of headrest rods, the far ends of the headrest rods are connected with a third rotating mechanism, and two ends of the third rotating mechanism are provided with headrest connectors. The utility model relates to the technical field of chairs, and realizes the adjustment of a headrest and the change of the inclination angle of the headrest through the cooperation among a second rotating shaft, a second rotating mechanism and a third rotating shaft, thereby solving the problems that the adjustment range of the existing support component is single, and people with different sizes can not be well dealt with by only changing the position of the headrest, and the comfort level is reduced.

Description

Multi-joint adjusting head load supporting assembly and chair

Technical Field

The utility model relates to the technical field of chairs, in particular to a multi-joint adjusting head load supporting assembly and a chair.

Background

The chair is daily life furniture, a seat with a backrest and armrests, modern chairs are attractive and fashionable, some chairs are not used as seats alone, the life of a human being is more convenient under the combination of science and technology, and in order to improve the comfort level of people when sitting, a headrest is generally added to support the head of the person, so that a head support assembly is needed to ensure the comfort of the head.

The existing head support assembly can only change the position of the headrest and can support the heads of people with different heights.

However, the existing supporting component is single in adjusting range, people with different body types cannot be well dealt with by changing the position of the headrest and sitting on the chair, and comfort level is reduced.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a multi-joint adjusting head load supporting component, which solves the problems that the adjusting range of the existing supporting component is single, people with different sizes can not be well dealt with by changing the position of a headrest to sit on a chair, and the comfort level is reduced.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme: the utility model provides a head load supporting component is adjusted to many joints, includes the headrest main part, the inboard rigid coupling of headrest main part has the crossbeam, the outer wall of crossbeam is equipped with the first rotary mechanism of following the reciprocal regulation of crossbeam length direction, the both ends of first rotary mechanism set up a pair of headrest hasp, the second rotary mechanism is installed to the distal end of headrest hasp, the both ends of second rotary mechanism are equipped with a pair of headrest pole, the third rotary mechanism is connected to the distal end of headrest pole, the both ends of third rotary mechanism are equipped with the headrest adaptor.

Preferably, the first rotation mechanism includes:

the pair of first connecting pieces are clamped by the spring pieces and are rotationally connected with the first fixing pieces, and the first connecting pieces are connected with the proximal ends of the headrest lock catches.

Preferably, the first rotation mechanism further includes:

the clamping grooves are arranged on the first fixing piece and form a limiting channel for accommodating displacement of the cross beam relative to the first fixing piece; the limiting plate is arranged on the surface of the first fixing piece;

the second positioning holes are equidistantly formed in the surface of the first fixing piece; one end of the limiting piece is connected with the limiting plate, and the other end of the limiting piece is separated from or stretches into the second positioning hole so as to move or be fixed relative to the first fixing piece.

Preferably, a first positioning hole for assembling the limiting piece is formed on the surface of the limiting plate.

Preferably, the second rotation mechanism includes:

a first rotating shaft;

the pair of second connecting pieces are fixed at two ends of the first rotating shaft;

the locking piece is sleeved on the first rotating shaft, rotates around the first rotating shaft, and two ends of the locking piece are respectively pressed or separated from the pair of second connecting pieces;

the second fixing piece is rotationally connected with the second connecting piece through a ratchet wheel piece and is connected with the proximal end of the headrest rod.

Preferably, the third rotation mechanism includes:

a second rotating shaft;

the pair of third connecting pieces are fixed at two ends of the second rotating shaft;

the wrench is sleeved on the first rotating shaft, rotates around the second rotating shaft, and two ends of the wrench are respectively pressed or separated from the pair of third connecting pieces;

and the third fixing piece is rotationally connected with the third connecting piece through the ratchet piece and is connected with the headrest adapter.

Preferably, the headrest adapter is provided with a mounting hole.

The utility model also provides a chair comprising the multi-joint adjustment head load support assembly according to the above.

Advantageous effects

The utility model provides a multi-joint adjusting head load supporting component and a chair. The beneficial effects are as follows: the head load supporting component of the chair is matched with the second rotating shaft, the second rotating mechanism and the third rotating shaft, so that the adjustment of the head rest main body is realized, the change of the inclination angle of the head rest main body is realized, the problem that the adjustment range of the existing supporting component is single is solved, people who cannot well deal with different body types only by changing the position of the head rest main body sit on the chair is solved, and the comfort level is reduced.

Drawings

FIG. 1 is a first schematic diagram of the present utility model;

FIG. 2 is a second schematic diagram of the present utility model;

fig. 3 is an enlarged view of a portion a of fig. 2;

FIG. 4 is a schematic view of a limiting member according to the present utility model;

FIG. 5 is a perspective view of the present utility model;

fig. 6 is an enlarged view of part B of fig. 5;

fig. 7 is an enlarged view of part C of fig. 5;

fig. 8 is a schematic view of the structure of the utility model after the wrench and locking member are removed.

In the figure: 1. a headrest body; 2. a cross beam; 3. a first rotation mechanism; 301. a first fixing member, 302, a first connecting member; 4. a first positioning hole; 501. a limiting plate; 502. a limiting piece; 503. a second positioning hole; 601. wrench, 602, third mount; 603. a third connecting member; 604. a second rotating shaft; 7. a headrest adapter; 8. a headrest latch; 901. a locking member; 902. a second fixing member; 903. a second connector; 904. a first rotating shaft; 10. a mounting hole; 11. a headrest rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The components in the present case are sequentially connected by a person skilled in the art, and specific connection and operation sequence should be referred to the following working principle, and the detailed connection means thereof are known in the art, and the following working principle and process are mainly described.

Embodiment one: the utility model provides a head load supporting component is adjusted to many joints, includes headrest main part 1, the inboard rigid coupling of headrest main part 1 has crossbeam 2, the outer wall of crossbeam 2 is equipped with along the reciprocal first rotary mechanism 3 who adjusts of crossbeam length direction, the both ends of first rotary mechanism 3 set up a pair of headrest hasp 8, second rotary mechanism 9 is installed to headrest hasp 8's distal end, the both ends of second rotary mechanism 9 are equipped with a pair of headrest pole 11, the third rotating member is connected to headrest pole 11's distal end, the both ends of third rotating member are equipped with headrest adaptor 7, need be pointed out further that the head load supporting component of this chair has three position regulatory function:

1. in this embodiment, as shown in fig. 2, 3 and 8, two ends of the second rotating shaft 604 are respectively provided with a pair of third connecting members 603, a side wall of the third connecting member 603 is provided with ratchets, one side of the third connecting member 603 with ratchets is meshed with the third fixing member 602, it is noted that the third fixing member 602 and the third connecting member 603 are coaxial with the second rotating shaft 604, the third fixing member 602 is arranged at two ends of the second rotating shaft 604, the second rotating shaft 604 does not penetrate through the third fixing member 602, the headrest connecting member 7 is assembled on the surface of the third fixing member 602, when the third fixing member 602 rotates relative to the third connecting member 603, an appropriate angle can be adjusted every time a ratchet is rotated, and the number of ratchets determines the whole-course rotation angle of the third fixing member 602.

Further, as shown in fig. 7, an arc-shaped protrusion is disposed on one side of the third connecting member 603, an arc-shaped protrusion is disposed on one side surface of the wrench 601, and when the arc-shaped protrusion of the wrench 601 is in interference extrusion with the arc-shaped protrusion of the third connecting member 603, relative locking is achieved.

2. In this embodiment, as shown in fig. 1, 6 and 8, two ends of the first rotating shaft 904 are respectively provided with a pair of second connecting pieces 903, a side wall of each second connecting piece 903 is provided with a ratchet, one side of each second connecting piece 903 with the ratchet is meshed with the second fixing piece 902, it should be noted that the second fixing pieces 902 and 903 are coaxial with the first rotating shaft 904, the second fixing pieces 902 are arranged at two ends of the first rotating shaft 904, the first rotating shaft 904 does not penetrate through the second fixing pieces 902, the headrest rod 11 is assembled on the surface of the second fixing pieces 902, meanwhile, the headrest lock catch 8 is assembled on the second fixing pieces, when the second fixing pieces 902 rotate relative to the second connecting pieces 903, an appropriate angle can be adjusted every time when one ratchet is rotated, and the number of the ratchet determines the angle of the whole rotation of the second fixing pieces 902.

Further, as shown in fig. 6, an arc-shaped protrusion is provided on one side of the second connector 903, and an arc-shaped protrusion is also provided on one side surface of the locking member 904, so that when the arc-shaped protrusion of the locking member 904 is pressed with the arc-shaped protrusion of the second connector 903 in an interference manner, the relative locking is realized.

3. In this embodiment, as shown in fig. 1 and 2, a pair of first connecting members 302 clamps the first fixing member 301 through a spring member, and after the first fixing member 301 is forced to rotate, the rotated first fixing member 301 is static and does not rebound relative to the position of the first connecting member 302 due to the unchanged clamping force.

4. In fig. 2, the limiting plate 501 and the limiting piece 502 are made into an explosion state to indicate that the cross beam 2 relatively displaces along the first fixing piece 301, and in combination with fig. 5, the bottom of the limiting piece 502 is provided with a radian bulge, the top of the limiting piece is inserted into the first positioning hole 4 of the limiting plate 501, and when the cross beam 2 relatively slides and displaces, the radian bulge of the limiting piece 502 enters into the second positioning hole on the limiting plate 501 to form relative static of the limiting plate 501 and the cross beam 2, and the limiting plate 501 is relatively fixedly connected with the first fixing piece 301, so that the cross beam 2 vertically displaces along the first fixing piece 301.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A polyarticular adjustment head load support assembly comprising a headrest body (1), characterized in that: the inside rigid coupling of headrest main part (1) has crossbeam (2), the outer wall of crossbeam (2) is equipped with first rotary mechanism (3) of following crossbeam length direction reciprocal regulation, the both ends of first rotary mechanism (3) set up a pair of headrest hasp (8), second rotary mechanism is installed to the distal end of headrest hasp (8), the both ends of second rotary mechanism are equipped with a pair of headrest pole (11), third rotary mechanism is connected to the distal end of headrest pole (11), the both ends of third rotary mechanism are equipped with headrest adaptor (7).

2. A polyarticular accommodating head load support assembly as claimed in claim 1, wherein: the first rotation mechanism (3) includes:

a first fixing member (301);

and the pair of first connecting pieces (302) clamp the first fixing pieces (301) through spring pieces, and the first connecting pieces (302) are connected with the proximal ends of the headrest catches (8).

3. A polyarticular accommodating head load support assembly as claimed in claim 2, wherein: the first rotation mechanism (3) further comprises:

the clamping grooves are arranged on the first fixing piece (301) and form a limiting channel for accommodating displacement of the cross beam (2) relative to the first fixing piece (301);

the limiting plate (501) is arranged on the surface of the first fixing piece (301);

a plurality of second positioning holes (503) which are equidistantly arranged on the surface of the first fixing piece (301);

and one end of the limiting piece (502) is connected with the limiting plate (501), and the other end of the limiting piece is separated from or stretches into the second positioning hole (503) so as to move or be fixed relative to the first fixing piece (301).

4. A polyarticular accommodating head load support assembly as claimed in claim 3, wherein: the surface of the limiting plate (501) is provided with a first positioning hole (4) for assembling the limiting piece (502).

5. A polyarticular accommodating head load support assembly as claimed in claim 2, wherein: the second rotation mechanism includes:

a first rotation shaft (904);

a pair of second connection members (903), wherein the second connection members (903) are fixed at two ends of the first rotating shaft (904);

the locking pieces (901) are sleeved on the first rotating shaft (904), the locking pieces (901) rotate around the first rotating shaft, and two ends of each locking piece (901) are respectively pressed or separated from a pair of second connecting pieces (903);

and the second fixing piece (902) is rotationally connected with the second connecting piece (903) through a ratchet piece, and the second fixing piece (902) is connected with the proximal end of the headrest rod (11).

6. A polyarticular accommodating head load support assembly as claimed in claim 2, wherein: the third rotation mechanism includes:

a second spindle (604);

a pair of third connecting pieces (603), wherein the third connecting pieces (603) are fixed at two ends of the second rotating shaft (604);

the wrench (601) is sleeved on the first rotating shaft (904), the wrench (601) rotates around the second rotating shaft, and two ends of the wrench (601) are respectively pressed or separated from a pair of third connecting pieces (603);

the third fixing piece (602) is rotationally connected with the third connecting piece (603) through a ratchet piece, and the third fixing piece (602) is connected with the headrest adapter (7).

7. A polyarticular accommodating head load support assembly as in claim 6, wherein: and the headrest adapter (7) is provided with a mounting hole (10).

8. A chair, characterized in that: comprising a polyarticular adjustable head load support assembly according to any one of claims 1 to 7.