CN220442269U - Seat headrest structure convenient to adjust - Google Patents
Seat headrest structure convenient to adjust Download PDFInfo
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- CN220442269U CN220442269U CN202321851613.7U CN202321851613U CN220442269U CN 220442269 U CN220442269 U CN 220442269U CN 202321851613 U CN202321851613 U CN 202321851613U CN 220442269 U CN220442269 U CN 220442269U
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- driving mechanism
- driving motor
- seat
- connecting piece
- driving
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- 230000005540 biological transmission Effects 0.000 claims description 21
- 238000013016 damping Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000036544 posture Effects 0.000 abstract description 3
- 230000005389 magnetism Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model relates to the technical field of seats, in particular to a seat headrest structure convenient to adjust, which is characterized in that a first driving mechanism drives a first connecting piece to drive a headrest to rotate relative to a base, a second driving mechanism drives a second connecting piece to drive the headrest to rotate relative to the first connecting piece, the rotation range of the headrest is larger, the headrest is not only limited to rotate around one shaft, the effect of adjusting the positions and included angles of the headrest and the seat through multi-shaft rotation can be achieved, and the seat headrest structure is suitable for sitting postures of different users and convenient to adjust.
Description
Technical Field
The utility model relates to the technical field of seats, in particular to a seat headrest structure convenient to adjust.
Background
The seat is used as furniture necessary for daily life of people, the comfort of the seat is always concerned by users, and especially for long-time sitting people, the cervical vertebra of the people is easy to be tired due to long-time office, so that for a conventional seat, a headrest can be additionally arranged on the seat, and a structure capable of adjusting the angle of the headrest is arranged for relieving the problem that the cervical vertebra is tired due to long-time sitting of the people.
The Chinese patent with publication number of CN215347898U discloses an office chair headrest structure convenient to adjust, belongs to the field of office furniture accessories, and aims at the problem of poor adaptability of the existing office chair headrest structure, and adopts the following technical scheme: an office chair headrest structure convenient to adjust, comprising: the head and neck support piece and the base connected with the backrest are arranged in a flaring mode, the damping component is embedded in the bottom of the headrest main body, and the bottom of the damping component is provided with a first concave-convex surface which is concave-convex; the base of connecting the back, the base is rotated through connection structure and neck support piece and is connected, is equipped with the locating part on the base, and the upper surface of locating part is the second concave-convex surface that is concave-convex shape, and first concave-convex surface contradicts each other with the second concave-convex surface and spacing, makes neck support piece can change the junction angle between with the base under the application of force condition, and the problem that prior art exists is: the headrest support of this seat is connected through connection structure and the base of being connected in the connection back, can adjust the angle that is suitable for user's head to place through adjusting the angle of connection between head and neck support and the base, but because head and neck support can only rotate on the plane around the base to can not be applicable to different positions of sitting of different users, and need manual regulation can not bring better experience for the user.
Accordingly, the prior art seats are still in need of improvement.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to: the seat headrest structure is convenient to adjust, can translate up and down and rotate the angles of the headrest and the seat in a multi-axis manner, and is suitable for sitting postures of different users.
The utility model adopts the technical scheme that: the utility model provides a seat headrest structure convenient to adjust, the support is used for with seat fixed connection, be provided with the mount pad on the support and be used for the drive the first actuating mechanism of the vertical translation of mount pad, second actuating mechanism sets up on the mount pad, the one end of first connecting piece with the transmission of second actuating mechanism is connected, the second actuating mechanism drive first connecting piece for the mount pad rotates, third actuating mechanism installs the other end of first connecting piece, the one end of second connecting piece with third actuating mechanism transmission is connected, the third actuating mechanism drive the second connecting piece for first connecting piece rotates, the headrest with the other end of second connecting piece rotates to be connected.
As a further improvement of the technical scheme, the first driving mechanism comprises a first driving motor and two ball screws, wherein the first driving motor is transversely arranged on the support, the two ball screws are respectively vertically arranged at two ends of the support, output shafts are respectively arranged at two ends of the first driving motor, the two output shafts are respectively connected with two end parts of the ball screws in a transmission manner, the mounting seat is connected with the ball screws in a transmission manner through screw nuts, and the ball screws are driven by the first driving motor to drive the mounting seat to translate up and down.
As a further improvement of the technical scheme, limit switches electrically connected with the first driving motor are arranged on the upper portion and the lower portion of the support, the limit switches are used for limiting the highest position and the lowest position of the translation of the mounting seat, and the limit switches are started to close the first driving motor when the mounting seat translates to the upper portion or the lower portion of the support to be in contact with the limit switches.
As a further improvement of the technical scheme, the support is provided with the mounting hole and the damping rubber pad mounted on the mounting hole, and the damping rubber pad is used for reducing vibration generated by the seat when the first driving motor drives the ball screw to work, so that noise is reduced.
As a further improvement of the technical scheme, the first connecting piece comprises two first connecting rods which are respectively connected with two ends of the first driving mechanism in a transmission way, the third driving mechanism is fixedly arranged between the two first connecting rods, the second connecting piece comprises two second connecting rods which are respectively pivoted to the tail ends of the first connecting rods, at least one second connecting rod is rotationally connected with an output shaft of the third driving mechanism, two supporting rods which are vertically arranged are arranged on the headrest, and the other ends of the two second connecting rods are respectively rotationally connected with the two supporting rods.
As a further improvement of the technical scheme, the second driving mechanism comprises a second driving motor which is transversely arranged on the mounting seat, two ends of the second driving motor are respectively provided with an output shaft which is in transmission connection with two first connecting rods, the third driving mechanism comprises a third driving motor which is transversely arranged and is fixedly connected with two inner sides of the first connecting rods, two ends of the third driving motor are respectively provided with an output shaft which is in transmission connection with two second connecting rods, the second driving motor drives the first connecting rods to rotate relative to the mounting seat, and the third driving motor drives the second connecting rods to rotate relative to the first connecting rods.
As the further improvement of above-mentioned technical scheme, the other circuit board that all is equipped with of output shaft of second driving motor and third driving motor, the electricity is connected with more than two hall switch on the circuit board, first connecting rod and second connecting rod are close to all be equipped with on the medial surface of circuit board one end with the magnetism spare that pairs of hall switch, when the magnetism piece on first connecting rod or the second connecting rod is inhaled and is rotated to hall switch department, hall switch detects magnetism spare and produces signal transmission to the circuit board, closes through circuit board control second driving motor or third driving motor to this restriction first connecting rod or second connecting rod rotate.
As a further improvement of the technical scheme, protrusions are arranged at two ends of the third driving motor, and slots for the protrusions to be inserted into are formed in the inner side faces of the two first connecting rods.
As a further improvement of the technical scheme, a fourth driving motor for driving the support rod to rotate relative to the second connecting rod is arranged at the joint of the support rod and the second connecting rod.
The beneficial effects of the utility model are as follows: through translation about first actuating mechanism drive mount pad, drive first connecting piece through second actuating mechanism and drive the headrest and rotate for the mount pad, drive the headrest and rotate for first connecting piece through third actuating mechanism, the headrest can be in vertical direction and the rotation range is bigger, not only is limited to rotating around an axle, can reach the effect that multiaxis rotation adjusted headrest and seat's position and contained angle, be applicable to different user's position of sitting and conveniently adjust.
Drawings
The utility model is further illustrated by the following description and examples of the embodiments in conjunction with the accompanying drawings.
FIG. 1 is a perspective view of a seat headrest structure of the present utility model for ease of adjustment;
FIG. 2 is a perspective view of the rear view of a seat headrest structure according to the present utility model for ease of adjustment;
FIG. 3 is an exploded view of a seat headrest structure for easy adjustment in accordance with the present utility model;
fig. 4 is a structural view of a second driving motor and a third driving motor of the present utility model;
fig. 5 is a structural view of the stent of the present utility model.
In the figure: the device comprises a 1-bracket, a 2-first driving mechanism, a 21-first driving motor, a 22-ball screw, a 23-limit switch, a 24-damping rubber pad, a 3-mounting seat, a 4-second driving mechanism, a 41-second driving motor, a 5-first connecting piece, a 51-first connecting rod, a 52-slot, a 6-third driving mechanism, a 61-third driving motor, a 62-bulge, a 7-second connecting piece, a 71-second connecting rod, an 8-headrest, a 81-supporting rod, a 9-circuit board and a 91-Hall switch.
Detailed Description
Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements 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 utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1, a seat headrest structure according to an embodiment of the present utility model is provided;
referring to fig. 1, the bracket 1 is fixedly connected with a seat through a mounting hole, a mounting seat 3 and a first driving mechanism 2 for driving the mounting seat 3 to vertically translate are arranged on the bracket 1, a second driving mechanism 4 is arranged on the mounting seat 3, one end of a first connecting piece 5 is in transmission connection with the second driving mechanism 4, the second driving mechanism 4 drives the first connecting piece 5 to rotate relative to the mounting seat 3, a third driving mechanism 6 is arranged at the other end of the first connecting piece 5, one end of a second connecting piece 7 is in transmission connection with the third driving mechanism 6, the third driving mechanism 6 drives the second connecting piece 7 to rotate relative to the first connecting piece 5, and the headrest 8 is in rotation connection with the other end of the second connecting piece 7;
in a preferred embodiment, referring to fig. 2 and 3, the mounting base 3 is in transmission connection with the ball screw 22 through a screw nut, the second driving motor 41 is transversely arranged on the mounting base 3, output shafts at two ends of the second driving motor 41 are respectively in transmission connection with the two first connecting rods 51, two ends of the third driving motor 61 are respectively provided with a protrusion 62, inner side surfaces of the two first connecting rods 51 are provided with slots 52 for inserting the protrusions 62 therein, output shafts at two ends of the third driving motor 61 are respectively in transmission connection with the two second connecting rods 71, two support rods 81 vertically arranged are arranged on the headrest 8, the other ends of the two second connecting rods 71 are respectively in rotational connection with the two support rods 81, and the rotation planes of the first connecting rods 51, the second connecting rods 71 and the headrest 8 are parallel to each other;
in an alternative embodiment, referring to fig. 4, the output shafts of the second driving motor 41 and the third driving motor 61 are respectively provided with a circuit board 9, the circuit boards 9 are electrically connected with more than two hall switches 91, and the inner sides of the first connecting rod 51 and the second connecting rod 71, which are close to one end of the circuit boards 9, are respectively provided with a magnetic member;
in some embodiments, referring to fig. 5, the first driving motor 21 is transversely disposed on the bracket 1, two ball screws 22 are vertically disposed at two ends of the bracket 1, two ends of the first driving motor 21 are respectively provided with an output shaft, the two output shafts are respectively in transmission connection with the ends of the two ball screws 22, limit switches 23 electrically connected with the first driving motor 21 are respectively disposed at the upper part and the lower part of the bracket 1, and damping rubber pads 24 are mounted on mounting holes;
in other embodiments, the first driving mechanism 2 may be a linear motor, two ends of the bracket 1 are vertically provided with sliding rails, the mounting seat 3 is slidably connected to the sliding rails, and the linear motor drives the mounting seat 3 to translate on the sliding rails;
the first link 51 rotates around the lateral axis of the second driving motor 41, and the second link 71 rotates around the vertical axis of the third driving motor 61;
a fourth driving motor for driving the support rod 81 to rotate relative to the second connecting rod 71 is arranged at the joint of the support rod 81 and the second connecting rod 71.
The using effect is as follows:
the ball screw 22 is driven by the first driving motor 21 to rotate so as to drive the mounting seat 3 to translate up and down, when the mounting seat 3 translates to the upper part or the lower part of the bracket 1, the mounting seat 3 can be contacted with the limit switch 23, and at the moment, the limit switch 23 can transmit a signal to the first driving motor 21 and close the signal, so that the highest position and the lowest position of the translation of the mounting seat 3 are limited, and damage is prevented;
the first connecting rod 51 is driven by the second driving motor 41 to enable the headrest 8 to rotate relative to the mounting seat 3, the second connecting rod 71 is driven by the third driving motor 61 to enable the headrest 8 to rotate relative to the first connecting rod 51, magnetic pieces on the first connecting rod 51 and the second connecting rod 71 rotate along with the first connecting rod 51, when the magnetic pieces rotate to the side of the Hall switch 91, the Hall switch 91 can transmit induction to the circuit board 9, and then a signal is transmitted to the second driving motor 41 or the third driving motor 61 through the circuit board 9 to close the second connecting rod 51;
the headrest 8 is driven to rotate relative to the second link 71 by the fourth driving motor, thereby adjusting the position of the headrest 8 in accordance with the optimum sitting posture of the user.
The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).
Claims (9)
1. A seat headrest structure convenient to adjust, comprising:
the seat comprises a bracket (1), wherein the bracket (1) is used for being fixedly connected with a seat, and a mounting seat (3) and a first driving mechanism (2) for driving the mounting seat (3) to vertically translate are arranged on the bracket (1);
a second driving mechanism (4), wherein the second driving mechanism (4) is arranged on the mounting seat (3);
one end of the first connecting piece (5) is in transmission connection with the second driving mechanism (4), and the second driving mechanism (4) drives the first connecting piece (5) to rotate relative to the mounting seat (3);
a third driving mechanism (6), wherein the third driving mechanism (6) is arranged at the other end of the first connecting piece (5);
one end of the second connecting piece (7) is in transmission connection with the third driving mechanism (6), and the third driving mechanism (6) drives the second connecting piece (7) to rotate relative to the first connecting piece (5);
and the headrest (8) is rotationally connected with the other end of the second connecting piece (7).
2. A seat headrest structure for facilitating adjustment according to claim 1 wherein:
the first driving mechanism (2) comprises a first driving motor (21) transversely arranged on the support (1) and two ball screws (22) respectively vertically arranged at two ends of the support (1), two output shafts are respectively arranged at two ends of the first driving motor (21), the two output shafts are respectively in transmission connection with the end parts of the two ball screws (22), and the mounting seat (3) is in transmission connection with the ball screws (22) through screw nuts.
3. A seat headrest structure for facilitating adjustment as claimed in claim 2 wherein:
the upper portion and the lower part of support (1) all are equipped with limit switch (23) with first driving motor (21) electricity is connected, limit switch (23) are used for limiting the highest position and the lowest position of mount pad (3) translation.
4. A seat headrest structure for facilitating adjustment as claimed in claim 3 wherein:
the support (1) is provided with a mounting hole and a damping rubber pad (24) mounted on the mounting hole.
5. An adjustable seat headrest structure according to claim 4 wherein:
the first connecting piece (5) comprises two first connecting rods (51) which are respectively in transmission connection with two ends of the first driving mechanism (2), and the third driving mechanism (6) is fixedly arranged between the two first connecting rods (51);
the second connecting piece (7) comprises two second connecting rods (71) which are respectively pivoted to the tail ends of the first connecting rods (51), wherein at least one second connecting rod (71) is in transmission connection with an output shaft of the third driving mechanism (6);
two support rods (81) are vertically arranged on the headrest (8), and the other ends of the two second connecting rods (71) are respectively connected with the two support rods (81) in a rotating mode.
6. An adjustable seat headrest structure according to claim 5 wherein:
the second driving mechanism (4) comprises a second driving motor (41) transversely arranged on the mounting seat (3), and output shafts respectively connected with the two first connecting rods (51) in a transmission way are arranged at two ends of the second driving motor (41);
the third driving mechanism (6) comprises a third driving motor (61) which is transversely arranged and fixedly connected with the inner sides of the two first connecting rods (51), and output shafts which are respectively connected with the two second connecting rods (71) in a transmission mode are arranged at two ends of the third driving motor (61).
7. A seat headrest structure for facilitating adjustment according to claim 6 wherein:
a circuit board (9) is arranged beside the output shafts of the second driving motor (41) and the third driving motor (61), and more than two Hall switches (91) are electrically connected to the circuit board (9);
magnetic pieces matched with the Hall switch (91) are arranged on the inner side surfaces of the first connecting rod (51) and the second connecting rod (71) close to one end of the circuit board (9).
8. A seat headrest structure for facilitating adjustment according to claim 7 wherein:
the two ends of the third driving motor (61) are provided with protrusions (62), and the inner side surfaces of the two first connecting rods (51) are provided with slots (52) for the protrusions (62) to be inserted into.
9. A seat headrest structure for facilitating adjustment according to claim 8 wherein:
the connection part of the support rod (81) and the second connecting rod (71) is provided with a fourth driving motor for driving the support rod (81) to rotate relative to the second connecting rod (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321851613.7U CN220442269U (en) | 2023-07-13 | 2023-07-13 | Seat headrest structure convenient to adjust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321851613.7U CN220442269U (en) | 2023-07-13 | 2023-07-13 | Seat headrest structure convenient to adjust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220442269U true CN220442269U (en) | 2024-02-06 |
Family
ID=89728345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321851613.7U Active CN220442269U (en) | 2023-07-13 | 2023-07-13 | Seat headrest structure convenient to adjust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220442269U (en) |
-
2023
- 2023-07-13 CN CN202321851613.7U patent/CN220442269U/en active Active
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