CN108372818B - Headrest angle regulator - Google Patents
Headrest angle regulator Download PDFInfo
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- CN108372818B CN108372818B CN201610889465.6A CN201610889465A CN108372818B CN 108372818 B CN108372818 B CN 108372818B CN 201610889465 A CN201610889465 A CN 201610889465A CN 108372818 B CN108372818 B CN 108372818B
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Abstract
The invention discloses a headrest angle regulator, which comprises a seat connecting piece and a headrest connecting piece, wherein the seat connecting piece is used for connecting a seat, the headrest connecting piece is used for connecting a headrest, a connecting end plate is arranged at the top of the headrest connecting piece, a middle connecting hole is formed in the middle of the left end surface of the connecting end plate, a sliding bulge part is arranged at the left end of the connecting end plate below the middle connecting hole, a main connecting part is arranged at the top of the seat connecting piece, a main central through hole corresponding to the middle connecting hole is formed in the middle of the main connecting part, an arc-shaped limiting groove is formed in the edge part of the right end surface of the main connecting part; the right-hand member of main connecting portion has the shoulder hole, and the shoulder hole has set gradually the first step hole section that the diameter reduces gradually, second step hole section and third step hole section from left to right, and third step hole section communicates with each other with main central through-hole, and it is very little, and spare part is few, and is effectual, and its no gear formula mechanism does not have the gear and does not have the arbitrary angle regulation of sound in addition, and it is effectual to adjust.
Description
The technical field is as follows:
the invention relates to the technical field of office furniture equipment, in particular to a headrest angle adjuster.
Background art:
the existing headrest angle regulator is the one with CN202457357U patent number, and the positioning mechanism of the headrest angle regulator is mainly reset by the cooperation of a gear plate and a lock plate and the torsion spring control lock plate, so as to realize the positioning of the headrest angle regulation.
Moreover, the headrest angle adjuster adopts the gear plate and the lock plate to generate gears, noise is generated, clicking sound of the gears can be generated when one angle is adjusted, and the headrest angle adjuster can rotate for a certain angle when one gear is adjusted, generally 8 to 15 degrees, and the angle adjustment is limited.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provides a headrest angle regulator which is very small in size, few in parts and good in effect, has no gear mechanism, has no gear and no sound, and can regulate the angle randomly.
The scheme for solving the technical problems is as follows:
a headrest angle adjuster comprises a seat connecting piece and a headrest connecting piece, wherein the seat connecting piece is used for connecting a seat, the headrest connecting piece is used for connecting a headrest, a connecting end plate is arranged at the top of the headrest connecting piece, a middle connecting hole is formed in the middle of the left end face of the connecting end plate, a sliding bulge is formed in the left end of the connecting end plate below the middle connecting hole, a main connecting portion is arranged at the top of the seat connecting piece, a main central through hole corresponding to the middle connecting hole is formed in the middle of the main connecting portion, an arc-shaped limiting groove is formed in the edge of the right end face of the main connecting portion, and the sliding bulge is inserted and sleeved in the arc-shaped limiting groove;
the right end of the main connecting part is provided with a stepped hole, the stepped hole is sequentially provided with a first stepped hole section, a second stepped hole section and a third stepped hole section with the diameter gradually reduced from left to right, the third stepped hole section is communicated with the main central through hole, a plurality of fan-shaped blocks uniformly distributed by taking the main central through hole as the center are formed on the bottom end surface of the third stepped hole section, a limiting groove is formed on the arc-shaped wall surface of one side of each fan-shaped block close to the central through hole, a placing groove is formed between every two adjacent fan-shaped blocks, iron particles are inserted and sleeved in the placing grooves and positioned between the bottom end surface of the third stepped hole section and an inner end plate, spring placing grooves are formed on the side walls of all the fan-shaped blocks in the same direction, a buffer spring is inserted and sleeved in the spring placing groove, one end of the buffer spring is applied to the bottom surface of the spring placing groove, the other end of the buffer spring is applied to the iron particles, the inner end plate is inserted and sleeved in the third stepped hole section and pressed on the left end surface of the fan-shaped blocks, the iron grain locating part is inserted and sleeved in the second stepped hole section, the right end face beside the middle through hole of the iron grain locating part is provided with a plurality of arc-shaped limiting parts extending rightwards, the arc-shaped limiting parts penetrate through the middle through hole of the inner end plate and are inserted and sleeved in the corresponding limiting grooves, the upper cover covers the left end face of the main connecting part, the end part of the rod part of the fixing bolt penetrates through the middle connecting hole, the main central through hole, the middle through hole of the inner end plate, the middle through hole of the iron grain locating part and the middle waist-shaped through hole of the upper cover and is connected with a fixing nut.
The middle connecting hole is a hexagonal through hole, the rod part of the fixing bolt is sequentially a hexagonal part and a cylindrical part from right to left, the left end of the cylindrical part is provided with a waist-shaped protruding part, the middle left end face of the waist-shaped protruding part is provided with a screwed part, the hexagonal part is inserted and sleeved in the middle connecting hole, the cylindrical part is inserted and sleeved in the main central through hole, the middle through hole of the inner end plate and the middle through hole of the iron particle limiting part, the waist-shaped protruding part is inserted and sleeved in the middle waist-shaped through hole of the upper cover, and the fixing nut is screwed on the screwed part.
A plurality of positioning columns and positioning blocks are formed on the right end face of the inner end plate, each positioning column and one positioning block form a group of positioning parts, and each group of positioning parts is uniformly distributed on the right end face of the inner end plate by taking a middle through hole of the inner end plate as a center;
the left end face of the fan-shaped block is provided with a plurality of positioning concave holes, the positioning portions correspond to the fan-shaped blocks one by one, the positioning columns are inserted in the corresponding positioning concave holes, the positioning blocks are inserted in the corresponding spring placing grooves, the buffer springs are located between the positioning blocks and the left inner wall faces of the spring placing grooves, and the left end face of the fan-shaped block is close to the right end face of the inner end plate.
The iron grain limiting part is arranged on the left end face of the iron grain limiting part, the right end face of the upper cover is provided with a circular protrusion, the circular protrusion is inserted in the first step hole section, a positioning arc-shaped groove is formed in the circular protrusion, and the iron grain limiting protrusion is inserted in the positioning arc-shaped groove.
The top of the seat connecting piece is provided with an upper connecting part extending upwards, the bottom end of the main connecting part is provided with a lower connecting part extending downwards, and the upper connecting part and the lower connecting part are fixedly connected through bolts.
The bottom end of the headrest connecting piece is provided with a connecting block; the rod part of the seat connecting piece is a bending rod, and the tail end of the bending rod is provided with a threaded connecting part.
The iron particles are waist-shaped, one end of each iron particle is close to the outer side wall of the cylindrical portion, the other end of each iron particle is close to the inner side wall of the third stepped hole section, and the iron particles are located between the two arc-shaped limiting portions.
The invention has the following outstanding effects:
compared with the prior art, the gear-free adjustable angle regulator has the advantages of very small volume, few parts and good effect, and the gear-free mechanism, the gear-free and sound-free adjustable angle and the adjustable effect are good.
Description of the drawings:
FIG. 1 is a schematic view of an exploded structure of the present invention;
FIG. 2 is a schematic structural view of the primary connection of the present invention;
FIG. 3 is a schematic view of the angle change structure of FIG. 2;
FIG. 4 is a schematic view of the construction of the joint pillow;
FIG. 5 is a schematic view of a partial structure of an iron grain limiting member;
FIG. 6 is a schematic view of the angle change structure of FIG. 5;
FIG. 7 is a schematic structural view of an inner end plate;
FIG. 8 is a schematic structural view of the upper cover of the present invention;
FIG. 9 is a schematic structural view of a first state of the present invention;
FIG. 10 is a schematic structural view of a second state of the present invention;
FIG. 11 is an enlarged partial view of FIG. 9;
fig. 12 is a partially enlarged view of fig. 10.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings and specific preferred embodiments so that the advantages and features of the present invention can be more readily understood by those skilled in the art, and these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.
In an embodiment, as shown in fig. 1 to 12, a headrest angle adjuster includes a seat attachment 1 for attaching a seat and a headrest attachment 2 for attaching a headrest, the headrest attachment 2 having an attachment end plate 21 at a top thereof, the attachment end plate 21 having a middle attachment hole 22 at a middle portion of a left end surface thereof, the attachment end plate 21 having a sliding protrusion 23 at a left end thereof below the middle attachment hole 22, the seat attachment 1 having a main attachment portion 11 at a top thereof, the main attachment portion 11 having a main central through hole 12 at a middle portion thereof corresponding to the middle attachment hole 22, the main attachment portion 11 having an arc-shaped stopper groove 13 at a right end surface side portion thereof, the sliding protrusion 23 being inserted into the arc-shaped stopper groove 13;
the right end of the main connecting part 11 is provided with a stepped hole 14, the stepped hole 14 is sequentially provided with a first stepped hole section 141, a second stepped hole section 142 and a third stepped hole section 143, the diameters of which are gradually reduced from left to right, the third stepped hole section 143 is communicated with the main central through hole 12, a plurality of fan-shaped blocks 51 are uniformly distributed by taking the main central through hole 12 as the center are formed on the bottom end surface of the third stepped hole section 143, a limiting groove 52 is formed on the arc-shaped wall surface of one side of each fan-shaped block 51 close to the central through hole 12, a placing groove 54 is formed between every two adjacent fan-shaped blocks 51, an iron grain 7 is inserted and sleeved in the placing groove 54 and is positioned between the bottom end surface of the third stepped hole section 143 and the inner end plate 4, spring placing grooves 55 are formed on the side walls of all the fan-shaped blocks 51 in the same direction, a buffer spring 10 is inserted and sleeved in the spring placing grooves 55, one end of the buffer spring 10 is applied to the bottom surface of the spring placing groove 55, and the other end of the buffer spring 10 is applied to the iron grain 7, the inner end plate 4 is inserted and sleeved in the third stepped hole section 143 and pressed on the left end face of the sector block 51, the iron grain limiting part 3 is inserted and sleeved in the second stepped hole section 142, the right end face beside the middle through hole of the iron grain limiting part 3 is provided with a plurality of arc limiting parts 31 extending rightwards, the arc limiting parts 31 penetrate through the middle through hole of the inner end plate 4 and are inserted and sleeved in corresponding limiting grooves 52, the upper cover 6 covers the left end face of the main connecting part 11, the end part of the rod part of the fixing bolt 8 penetrates through the middle connecting hole 22, the main central through hole 12, the middle through hole of the inner end plate 4, the middle through hole of the iron grain limiting part 3 and the middle kidney-shaped through hole 61 of the upper cover 6, and is screwed with the fixing.
Furthermore, the middle connection hole 22 is a hexagonal through hole, the rod portion of the fixing bolt 8 sequentially includes a hexagonal portion 81 and a cylindrical portion 82 from right to left, the left end of the cylindrical portion 82 is provided with a waist-shaped protrusion 83, the left end face of the middle portion of the waist-shaped protrusion 83 is provided with a threaded portion 84, the hexagonal portion 81 is inserted and sleeved in the middle connection hole 22, the cylindrical portion 82 is inserted and sleeved in the main central through hole 12, the middle through hole of the inner end plate 4 and the middle through hole of the iron particle limiting member 3, the waist-shaped protrusion 83 is inserted and sleeved in the middle waist-shaped through hole 61 of the upper cover 6, and the fixing nut 9 is screwed on the threaded portion 84.
Furthermore, a plurality of positioning columns 43 and positioning blocks 44 are formed on the right end surface of the inner end plate 4, each positioning column 43 and one positioning block 44 form a group of positioning parts, and each group of positioning parts is uniformly distributed on the right end surface of the inner end plate 4 by taking a middle through hole of the inner end plate 4 as a center;
the left end face of the fan-shaped block 51 is provided with a plurality of positioning concave holes 56, the positioning parts correspond to the fan-shaped blocks 51 one by one, the positioning columns 43 are inserted in the corresponding positioning concave holes 56, the positioning blocks 44 are inserted in the corresponding spring placing grooves 55, the buffer spring 10 is arranged between the positioning blocks 44 and the left inner wall face of the spring placing grooves 55, and the left end face of the fan-shaped block 51 is close to the right end face of the inner end plate 4.
Further, have the spacing bellying 32 of iron grain on the left end face of iron grain locating part 3, the right end face of upper cover 6 has circular arch 62, and circular arch 62 plug bush has location arc recess 63 in first step hole section 141 on the circular arch 62, and the spacing bellying 32 plug bush of iron grain is in location arc recess 63.
Further, the seat link 1 has an upper connecting portion 19 extending upward at the top thereof, and a lower connecting portion 111 extending downward at the bottom end of the main connecting portion 11, and the upper connecting portion 19 and the lower connecting portion 111 are fixedly connected by bolts.
Further, the bottom end of the headrest connecting piece 2 is provided with a connecting block; the rod part of the seat connecting piece 1 is a bending rod, and the tail end of the bending rod is provided with a threaded connecting part.
Further, the iron particle 7 is in a waist shape, one end of the iron particle is close to the outer side wall of the cylindrical portion 82, the other end of the iron particle is close to the inner side wall of the third stepped hole section 143, and the iron particle 7 is located between the two arc-shaped limiting portions 31.
The working principle is as follows: as shown in fig. 9 and 10, the structure mainly controls the rotation angle through the lengths of the arc-shaped limiting groove 13 and the positioning arc-shaped groove 63, and adjusts the movement direction of the cylindrical part 82 through controlling the position of the iron particles 7. As shown in fig. 9, when the connection end plate 21, the upper cover 6 and the fixing bolt 8 are assembled, they are stationary, when the connection end plate 21 is rotated, the sliding protrusion 23 slides in the arc-shaped restriction groove 13, meanwhile, the upper cover 6 is also rotating, when the connecting end plate 21 rotates to a set maximum angle (namely, the rotation angle of the iron grain limiting piece 3 relative to the upper cover 6, and the rotation angle of the arc-shaped limiting groove 13 of the other connecting end plate 21 and the main connecting part 11 is 12 degrees more than the rotation angle of the iron grain limiting piece 3 and the positioning arc-shaped groove 63 of the upper cover 6), the upper cover 6 drives the iron grain limiting piece 3 to rotate, the rotation angle is 12 degrees, after the rotation of 12 degrees, the arc-shaped limiting part 31 of the iron particle limiting part 3 is pressed against the iron particle 7 (as shown in fig. 10), so that the iron particle 7 is separated from the cylindrical part 82, the cylindrical part 82 cannot be limited to rotate, and the rotating structure is returned.
The above embodiments are only for illustrating the invention and are not to be construed as limiting the invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention, therefore, all equivalent technical solutions also belong to the scope of the invention, and the scope of the invention is defined by the claims.
Claims (5)
1. A headrest angle adjuster, comprising a seat attachment (1) for attaching a seat and a joint headrest (2) for attaching a headrest, characterized in that: the top of the headrest connecting piece (2) is provided with a connecting end plate (21), the middle of the left end face of the connecting end plate (21) is provided with a middle connecting hole (22), the left end of the connecting end plate (21) below the middle connecting hole (22) is provided with a sliding bulge (23), the top of the seat connecting piece (1) is provided with a main connecting part (11), the middle of the main connecting part (11) is provided with a main central through hole (12) corresponding to the middle connecting hole (22), the edge part of the right end face of the main connecting part (11) is provided with an arc-shaped limiting groove (13), and the sliding bulge (23) is inserted and sleeved in the arc-shaped limiting groove (13);
the right end of the main connecting part (11) is provided with a stepped hole (14), the stepped hole (14) is sequentially provided with a first stepped hole section (141), a second stepped hole section (142) and a third stepped hole section (143) with diameters gradually reduced from left to right, the third stepped hole section (143) is communicated with the main central through hole (12), a plurality of fan-shaped blocks (51) which are uniformly distributed by taking the main central through hole (12) as the center are formed on the bottom end surface of the third stepped hole section (143), a limiting groove (52) is arranged on the arc-shaped wall surface of one side of each fan-shaped block (51) close to the central through hole (12), a placing groove (54) is arranged between every two adjacent fan-shaped blocks (51), iron particles (7) are inserted in the placing grooves (54) and are positioned between the bottom end surface of the third stepped hole section (143) and the inner end plate (4), and spring placing grooves (55) are arranged on the side walls of all the fan-shaped blocks (51) in the same direction, the buffer spring (10) is inserted and sleeved in the spring placing groove (55), one end of the buffer spring (10) is stressed on the bottom surface of the spring placing groove (55), the other end of the buffer spring (10) is stressed on the iron grain (7), the inner end plate (4) is inserted and sleeved in the third stepped hole section (143) and pressed on the left end surface of the fan-shaped block (51), the iron grain limiting part (3) is inserted and sleeved in the second stepped hole section (142), the right end surface beside the middle through hole of the iron grain limiting part (3) is provided with a plurality of arc limiting parts (31) extending rightwards, the arc limiting parts (31) penetrate through the middle through hole of the inner end plate (4) and are inserted and sleeved in the corresponding limiting groove (52), the upper cover (6) covers the left end surface of the main connecting part (11), the end part of the rod part of the fixing bolt (8) penetrates through the middle connecting hole (22), the main central through hole (12), the middle through hole of the inner end plate (4), the middle connecting hole of the main central through hole (12), The middle through hole of the iron grain limiting piece (3) and the middle waist-shaped through hole (61) of the upper cover (6) are in threaded connection with a fixing nut (9);
the middle connecting hole (22) is a hexagonal through hole, the rod part of the fixing bolt (8) is sequentially provided with a hexagonal part (81) and a cylindrical part (82) from right to left, the left end of the cylindrical part (82) is provided with a waist-shaped bulge part (83), the left end surface of the middle part of the waist-shaped bulge part (83) is provided with a screwed part (84), the hexagonal part (81) is inserted and sleeved in the middle connecting hole (22), the cylindrical part (82) is inserted and sleeved in the main central through hole (12), the middle through hole of the inner end plate (4) and the middle through hole of the iron particle limiting part (3), the waist-shaped bulge part (83) is inserted and sleeved in the middle waist-shaped through hole (61) of the upper cover (6), and the fixing nut (9) is screwed on the screwed part (84);
the bottom end of the headrest connecting piece (2) is provided with a connecting block; the rod part of the seat connecting piece (1) is a bending rod, and the tail end of the bending rod is provided with a threaded connecting part.
2. A headrest angle adjuster according to claim 1, wherein: a plurality of positioning columns (43) and positioning blocks (44) are formed on the right end face of the inner end plate (4), each positioning column (43) and one positioning block (44) form a group of positioning parts, and each group of positioning parts is uniformly distributed on the right end face of the inner end plate (4) by taking a middle through hole of the inner end plate (4) as a center;
the left end face of the fan-shaped block (51) is provided with a plurality of positioning concave holes (56), the positioning portions correspond to the fan-shaped blocks (51) one to one, the positioning columns (43) are inserted in the corresponding positioning concave holes (56), the positioning blocks (44) are inserted in the corresponding spring placing grooves (55), the buffer springs (10) are located between the left inner wall faces of the positioning blocks (44) and the spring placing grooves (55), and the left end face of each fan-shaped block (51) is close to the right end face of the inner end plate (4).
3. A headrest angle adjuster according to claim 1, wherein: have spacing bellying (32) of iron grain on the left end face of iron grain locating part (3), the right-hand member face of upper cover (6) has circular arch (62), and circular arch (62) plug bush has location arc recess (63) in first step hole section (141) on circular arch (62), and spacing bellying (32) plug bush of iron grain is in location arc recess (63).
4. A headrest angle adjuster according to claim 1, wherein: the top of the seat connecting piece (1) is provided with an upper connecting part (19) extending upwards, the bottom end of the main connecting part (11) is provided with a lower connecting part (111) extending downwards, and the upper connecting part (19) and the lower connecting part (111) are fixedly connected through bolts.
5. A headrest angle adjuster according to claim 1, wherein: the iron grain (7) is waist-shaped, one end of the iron grain is close to the outer side wall of the cylindrical part (82), the other end of the iron grain is close to the inner side wall of the third stepped hole section (143), and the iron grain (7) is positioned between the two arc-shaped limiting parts (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610889465.6A CN108372818B (en) | 2016-10-12 | 2016-10-12 | Headrest angle regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610889465.6A CN108372818B (en) | 2016-10-12 | 2016-10-12 | Headrest angle regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108372818A CN108372818A (en) | 2018-08-07 |
| CN108372818B true CN108372818B (en) | 2021-08-06 |
Family
ID=63015070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610889465.6A Active CN108372818B (en) | 2016-10-12 | 2016-10-12 | Headrest angle regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108372818B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109720393B (en) * | 2018-11-28 | 2021-06-15 | 湖州埭溪振华工贸有限公司 | Novel angle regulator |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2544264B1 (en) * | 1983-04-15 | 1988-05-27 | Faure Bertrand | IMPROVEMENTS ON ADJUSTABLE HEADRESTS EQUIPPED WITH VEHICLE SEAT RECORDS |
| DE10236158A1 (en) * | 2002-08-07 | 2004-02-19 | Rauschenberger Metallwaren Gmbh | Joint, especially for couches |
| JP2005245872A (en) * | 2004-03-05 | 2005-09-15 | Marubishi Company:Kk | Headrest device for wheelchair |
| CN201619469U (en) * | 2009-10-29 | 2010-11-03 | 上海科世达-华阳汽车电器有限公司 | Seat regulation switch |
| CN203308848U (en) * | 2013-06-14 | 2013-11-27 | 东莞市伟宏五金塑胶制品有限公司 | Large-route hinge |
| CN204091469U (en) * | 2014-09-02 | 2015-01-14 | 郑春华 | A kind of sofa headrest hinge |
| CN204109842U (en) * | 2014-09-18 | 2015-01-21 | 上海凯腾汽车技术有限公司 | A kind of adjustable-angle head support structure for chair |
| CN204488568U (en) * | 2014-12-12 | 2015-07-22 | 重庆宏立至信汽车部件制造有限公司 | The rotatably mounted setting device of chair headrest |
| CN205338310U (en) * | 2015-12-11 | 2016-06-29 | 东莞市伟宏五金塑胶制品有限公司 | Automatic retrieve headrest alignment jig |
| CN206473072U (en) * | 2016-10-12 | 2017-09-08 | 东莞市振鑫家具配件有限公司 | One kind headrest angle demodulator |
-
2016
- 2016-10-12 CN CN201610889465.6A patent/CN108372818B/en active Active
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| CN108372818A (en) | 2018-08-07 |
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