CN214647782U

CN214647782U - Headrest adjusting device of seat

Info

Publication number: CN214647782U
Application number: CN202022912425.3U
Authority: CN
Inventors: 郑捷
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-11-09
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a headrest adjusting device of a seat, which comprises a headrest supporting piece, wherein the headrest supporting piece is configured to be connected with a back supporting piece, and the headrest supporting piece and the back supporting piece are attached together in a front-back manner; longitudinal guide grooves are symmetrically formed in two sides of the headrest supporting piece, and guide blocks protruding forwards are correspondingly arranged on two sides of the back supporting piece; the guide block is in sliding fit in the guide groove so that the headrest supporting piece can slide up and down relative to the back supporting piece; a clamping mechanism is also arranged between the guide block and the guide groove, and the clamping mechanism comprises clamping beads arranged on the guide block and positioning grooves which are positioned in the guide groove and are longitudinally arranged at intervals; in the sliding process of the headrest support piece, the clamping balls are clamped with the positioning grooves at different heights, so that the headrest support piece can slide and stay at the corresponding height; the structure is simple and reliable, and the headrest support piece and the back support piece are attached to each other in a front-back manner after connection, so that connection traces can be eliminated; the whole body is more economical and beautiful.

Description

Headrest adjusting device of seat

Technical Field

The utility model relates to a thing to sit on field, in particular to headrest adjusting device of seat.

Background

The chair is one of tools which are the longest in working and learning time of people, and before the requirement on the aesthetic degree of the chair is provided, the chair is more important to ensure that the chair has good comfort degree, the chair with the headrest can better protect the neck of people, the fatigue of the neck after long-time sitting is relieved, and the risk of the attack of cervical spondylosis is reduced; however, since people of different heights sit on the seat and the height of the headrest is required to be different, the height of the headrest needs to be adjustable.

The headrest lifting adjusting device of the seat on the market at present is complex in structure or inconvenient to operate and install. In the headrest adjusting device of the seat, the double screws below the headrest are inserted into the backrest to achieve the purpose of adjusting the height, and a back frame structure needs to be additionally processed, so that the processing cost is increased; and when the adjustment is carried out, one hand is required to lift the headrest, the other hand is required to screw the bolt, and the operation is time-consuming and labor-consuming. In addition, in a headrest adjusting device for a seat, a bracket needs to be additionally arranged on a seat back, and a headrest is slidably connected to the bracket, so that the seat back does not need to be processed, but the cost is greatly increased. The two headrest height adjusting mechanisms are complex in structure and high in processing cost; and the headrest and the seat are troublesome to install and are not easy to be selectively installed or taken down according to the requirements of users.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a headrest adjusting device of a seat, which has simple structure and convenient adjustment; the back support piece and the headrest support piece are in sliding fit by arranging a guide block and a guide groove which are in sliding fit between the back support piece and the headrest support piece; a clamping mechanism is arranged between the guide block and the guide groove, so that the headrest support piece can slide and stay at any height adjusting position, the structure is simple and reliable, and the adjustment is convenient and quick; the headrest supporting piece and the back supporting piece are attached to each other front and back after connection, so that connection traces can be eliminated; the whole body is more economical and beautiful.

The technical scheme of the utility model is realized like this:

a headrest adjusting device of a seat comprises a headrest support, wherein the headrest support is configured to be connected with a back support, and the headrest support and the back support are abutted front and back; longitudinal guide grooves are symmetrically formed in two sides of the headrest supporting piece, and guide blocks protruding forwards are correspondingly arranged on two sides of the back supporting piece; the guide block is in sliding fit in the guide groove so that the headrest supporting piece can slide up and down relative to the back supporting piece; a clamping mechanism is also arranged between the guide block and the guide groove, and the clamping mechanism comprises clamping beads arranged on the guide block and positioning grooves which are positioned in the guide groove and are longitudinally arranged at intervals; in the sliding process of the headrest support, the clamping beads are clamped with the positioning grooves at different heights so that the headrest support can slide and then stay at the corresponding height.

Preferably, the clamping beads are arranged at the front end of the guide block, and the left side and the right side of each clamping bead protrude outwards from the guide block; a notch is arranged at the upper end of the guide groove, the width of the notch is wider than that of the guide groove, and the notch is configured to enable the clamping bead to pass through; the clamping bead penetrates through the notch so that the guide block is in sliding fit in the guide groove; and the clamping beads can limit the front and back separation of the guide block and the guide groove. The clamping bead is arranged at the front end of the guide block, and the upper end of the guide groove is correspondingly provided with a notch; the guide block is in sliding fit in the guide block by penetrating the clamping bead through the notch, and the clamping bead can not only be in clamping fit with the positioning groove after penetrating through the notch, but also can limit the guide block from being separated from the guide groove; simple structure and ingenious design.

Preferably, the two sides of the back surface of the headrest support are symmetrically provided with longitudinally arranged slide seats, and each slide seat comprises a front slide support plate and a rear slide support plate which are arranged at intervals in the front and the rear; the guide groove is longitudinally arranged on the rear sliding support plate, and the positioning grooves are longitudinally arranged on the back surface of the front sliding support plate at intervals. Through setting up preceding, back spaced slip backup pad, make then the card pearl pass behind the slip backup pad of back can carry out the joint with the constant head tank in the preceding slip backup pad.

Preferably, after the clamping bead passes through the notch, the clamping bead is clamped between the front sliding support plate and the rear sliding support plate; the rear end of the clamping bead is abutted against the rear sliding support plate to limit the front and rear separation of the guide block and the guide groove.

Preferably, the clamping beads are made of rubber. Friction force exists between the clamping beads and the positioning grooves, so that the headrest supporting piece can stay at the height after sliding adjustment; and the clamping bead can elastically contract, so that after force is applied to the headrest support, the clamping bead can be separated from the positioning groove clamped currently.

Preferably, the back support member comprises a left vertical support rod and a right vertical support rod which are symmetrical, the two vertical support rods are respectively connected with a fixed seat, and the guide block is arranged on the fixed seat. The fixing seat is connected to the supporting longitudinal rod, so that the structure is simpler, and the back supporting piece does not need to be processed additionally.

Preferably, the fixing seat comprises a supporting plate extending towards the center direction of the back support; the guide block is longitudinally arranged on the supporting plate and protrudes forwards from the supporting plate.

Preferably, the fixed seat further comprises a connecting plate connected with the supporting longitudinal rod, and the connecting plate is backwards vertical to the supporting plate; the upper end of the supporting longitudinal rod is correspondingly provided with an inward-sunken mounting groove; the connecting plate inserts in this mounting groove and connecting plate and mounting groove joint cooperation. The connecting plate is inserted into the mounting groove so that the connected supporting plate is approximately in the same plane with the back support; so that the back support piece is attached to the seat support piece after being connected; the connection trace can be hidden.

Preferably, a clamping groove is arranged in the mounting groove or on one of the connecting plates, and a clamping block is correspondingly arranged in the mounting groove or on the other connecting plate; the connecting plate inserts and makes fixture block and draw-in groove joint in the mounting groove. And a clamping and matching mode is adopted, so that the connection is more stable.

Preferably, the headrest support is coated with a flexible headrest. The use of the utility model is more comfortable.

Preferably, when the headrest support member slides along the back support member to the maximum height, the upper end of the headrest support member extends upwards 3-10cm beyond the upper end of the back support member; when the headrest supporter slides to the minimum height along the back supporter, the upper end of the headrest supporter is lower than the upper end of the back supporter by 3-12 cm.

Adopted above-mentioned technical scheme the utility model discloses a design departure point, theory and beneficial effect are:

firstly, a guide block protruding forwards is arranged on the back support piece, and a longitudinal guide groove is arranged on the headrest support piece; then the headrest support can slide relative to the back support through the sliding fit of the guide block and the guide groove; the guide block is matched with the guide groove, so that after connection, the headrest support piece and the back support piece are attached to each other front and back, and connection traces can be eliminated; compared with the prior art, the structure that the headrest is in sliding fit with the support is simplified undoubtedly, and the cost can be reduced by arranging the inserting columns and the inserting holes between the headrest and the backrest or arranging the support at the upper end of the backrest; and the whole is more economical and beautiful.

Secondly, a clamping bead is arranged at the front end of the guide block, and a notch is correspondingly arranged at the upper end of the guide groove; the clamping bead penetrates through the notch to enable the guide block to be in sliding fit in the guide groove; the clamping ball can be clamped and matched with the positioning groove, and the guide block can be limited to be separated from the guide groove; has double functions and ingenious design.

Moreover, in the connection process, the connection is not needed through screws; the installation and disassembly of the headrest support piece and the back support piece are all convenient, the clamping beads are worn out or penetrate into the notches, the headrest support piece can be configured into different shapes or colors, the user can install the headrest support piece or take down the headrest support piece to replace the headrest support piece according to the self requirement, and the use is more humanized.

Drawings

Fig. 1 is a schematic perspective view of a headrest supporting member and a back supporting member connected to each other according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of the front and rear connection of the headrest supporting member and the back supporting member according to the embodiment of the present invention;

fig. 3 is a schematic perspective view illustrating a connection between the back support and the fixing base according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of the embodiment of the present invention showing the back support member connected to the fixing base

Fig. 5 is a schematic perspective view of a fixing base according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of the back surface of the headrest supporting element according to the embodiment of the present invention;

fig. 7 is a schematic front perspective view of a headrest supporting member according to an embodiment of the present invention;

fig. 8 is a side sectional view of the slide according to the embodiment of the present invention.

The figures are numbered: a headrest support 1; a back support 2; a supporting longitudinal bar 3; a fixed seat 4; a support plate 4 a; a connecting plate 4 b; a mounting groove 5; a fixture block 6; a card slot 7; a slide 9; a front slide support plate 9 a; a rear sliding support plate 9 b; a transverse baffle 10; a side plate 11; a guide block 12; a guide groove 13; a clamping bead 14; a positioning groove 15; and a notch 16.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, the term "at least one" means one or more unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present embodiment is described with reference to the orientation of the various components, such as front, rear, etc., in a normal use condition with the user seated in the seat.

The specific implementation manner of the utility model is as follows:

as shown in fig. 1-8, the present invention firstly provides a headrest adjusting device for a seat, which comprises a headrest supporting member 1, wherein the headrest supporting member 1 is connected to a back supporting member 2 of the seat; the headrest supporting piece 1 and the back supporting piece 2 are attached together in a front-back manner, and the headrest supporting piece 1 is in sliding fit with the back supporting piece 2; so that the headrest supporter 1 can slide up and down along the back supporter 2 to adjust the height of the headrest of the seat.

As shown in fig. 2-5, specifically: the back support 2 comprises two left and right symmetrical supporting longitudinal rods 3, the two supporting longitudinal rods 3 are respectively provided with a fixed seat 4, and the fixed seat 4 comprises a supporting plate 4a extending along the width direction of the back support 2 and a connecting plate 4b perpendicular to the supporting plate 4a backwards; an inwards-concave mounting groove 5 is correspondingly arranged on the supporting longitudinal rod 3; the connecting plate 4b can be inserted into the mounting groove 5, a clamping block 6 is arranged in the mounting groove 5, and a clamping groove 7 is correspondingly arranged on the connecting plate 4 b; when the fixed seat 4 is connected with the supporting longitudinal rod 3, the connecting plate 4b is inserted into the mounting groove 5, so that the clamping block 6 in the mounting groove 5 is clamped and matched with the clamping groove 7 in the connecting plate 4 b; then, screws are connected to the inner side of the supporting longitudinal rod 3 and penetrate through the supporting longitudinal rod 3 and the connecting plate 4b so that the fixed seat 4 is fixedly connected with the supporting longitudinal rod 3; as shown in fig. 4, after the fixing bases 4 are connected to the vertical supporting rods 3, the supporting plates 4a on the fixing bases 4 on both sides extend toward the center of the back support 2. Through the connecting structure, the fixing seat 4 and the supporting longitudinal rod 3 are connected quickly and conveniently, and the connecting strength is high.

As shown in fig. 6 to 8, the headrest supporter 1 includes a curved cross bar 10 and side plates 11 located at both ends of the cross bar 10 and protruding forward; sliding seats 9 are symmetrically arranged on two sides of the transverse baffle 10, and the sliding seats 9 are longitudinally arranged; the front end and the rear end of the sliding seat 9 are protruded out of the transverse baffle 10; specifically, the method comprises the following steps: slide 9 be the frame construction of a cuboid, slide 9 includes preceding slip backup pad 9a and the back slip backup pad 9b that preceding, back interval set up, preceding slip backup pad 9a exposes at the preceding terminal surface of horizontal baffle 10, back slip backup pad 9b exposes at the back of horizontal baffle 10.

When the back support piece 2 is connected with the headrest support piece 1, the headrest support piece 1 is matched with the back support piece 2 in a sliding way by connecting the fixed seat 4 with the sliding seat 9 in a sliding way; specifically, the method comprises the following steps: a longitudinal guide block 12 is arranged on the support plate 4b on the fixed seat 4, and the guide block 12 protrudes forwards from the support plate 4 b; a guide groove 13 is correspondingly arranged on the rear sliding support plate 9b along the length direction thereof; the guide block 12 is in sliding fit with the inner guide groove 13 so that the fixed seat 4 can slide relative to the sliding seat 9; a clamping mechanism is arranged between the fixed seat 4 and the sliding seat 9 and comprises clamping beads 14 arranged at the front end of the guide block 12 and positioning grooves 15 longitudinally distributed at intervals on the back of the front sliding support plate 9; the clamping beads 14 can be clamped and matched with the positioning grooves 15, so that the headrest support 1 can stay at any height after sliding adjustment; the method specifically comprises the following steps: as shown in fig. 5 and 6, the clamping bead 14 is a hemisphere, the clamping bead 14 is disposed at the front end of the guide block 12, and both sides of the clamping bead 14 protrude outward from the guide block 12; in order to enable the guide block 12 to enter the guide groove 13, a notch 16 is additionally arranged at the upper end of the guide groove 13, the width of the notch 16 is wider than that of the guide groove 13, and the notch 16 can just enable the clamping bead 14 to pass through; when the connection is carried out, the clamping bead 14 on the guide block 12 passes through the rear sliding support plate 9b from the notch 16, so that the guide block 12 is in sliding fit in the guide groove 13; since the width of the locking bead 14 is wider than the guide groove 13, the locking bead 14 will abut against the rear sliding support plate 9b to restrict the guide block 12 from being separated from the guide groove 13 during the sliding of the guide block 12. After the clamping bead 14 passes through the notch 16, the clamping bead 14 can be just clamped and matched with the positioning groove 15; the method specifically comprises the following steps: the clamping beads 14 are made of rubber, friction force exists between the clamping beads 14 and the positioning grooves 15, the clamping beads 14 can elastically contract to a certain degree, when the height of the headrest support 1 needs to be adjusted, force is applied to the headrest support 1 to overcome the friction force between the clamping beads 14 and the positioning grooves 15, the headrest support 1 can slide along the back support 2, and the clamping beads 14 are sequentially clamped with the positioning grooves 15 at different positions, so that good gear feeling is achieved in the adjusting process; after the adjustment is finished, the headrest support 1 is released, and the clamping beads 14 are in clamping fit with the positioning grooves 15 at the corresponding positions, so that the headrest support 1 can stay at the height; the sliding fit between the fixed seat 4 and the sliding seat 9 is realized through the connection mode, the structure is simple and reliable, and a control switch is not required to be additionally arranged, so that the adjustment of the headrest is very quick and convenient; and design benefit sets up card pearl 14 at wire guide 12 front end, and card pearl 14 can enough restrict guide block 12 and break away from guide way 13, can also carry out the joint with constant head tank 15, plays dual function. In addition, the headrest supporting piece 1 and the back supporting piece 2 are very convenient to mount, and only the clamping beads 14 need to penetrate through the notches 16 without being connected through screws; easy dismounting, the user can be according to self demand from the line with headrest support piece 1 installation or take off, uses more humanized.

In this embodiment, when the headrest support 1 slides upward along the back support 2 to the maximum height, the upper end of the horizontal baffle 10 will exceed the upper end of the back support 2 by 8 cm; when the headrest supporter 1 slides down the back supporter 2 to a minimum height, the upper end of the headrest supporter 1 will be 10cm lower than the upper end of the back supporter 2. So that the headrest supporting part 1 can be lifted in a sufficient adjusting range to meet the use requirements of different people.

A flexible headrest (not shown) may be further wrapped on the headrest support 1, so that the user can use the headrest more comfortably.

To sum up, the utility model discloses a headrest adjusting device of a seat; a fixed seat 4 is connected to the supporting longitudinal rod 3 on the back support 2; a sliding seat 9 is correspondingly arranged on the headrest support 1; the fixed seat 4 is in sliding connection with the sliding seat 9 to realize the sliding fit between the headrest support 1 and the back support 2; compared with the prior art, the structure that the headrest is in sliding fit with the support is simplified undoubtedly, and the cost is effectively reduced by arranging the inserting columns and the inserting holes between the headrest and the backrest or arranging the support at the upper end of the backrest; and the headrest support 1 and the back support 2 are attached to each other in a front-back manner after connection, so that connection traces can be hidden, and the whole seat is simpler and more attractive.

Claims

1. A headrest adjusting device of a seat, characterized in that: the headrest support is configured to be connected with the back support, and the headrest support and the back support are attached together in a front-back manner; longitudinal guide grooves are symmetrically formed in two sides of the headrest supporting piece, and guide blocks protruding forwards are correspondingly arranged on two sides of the back supporting piece; the guide block is in sliding fit in the guide groove so that the headrest supporting piece can slide up and down relative to the back supporting piece; a clamping mechanism is also arranged between the guide block and the guide groove, and the clamping mechanism comprises clamping beads arranged on the guide block and positioning grooves which are positioned in the guide groove and are longitudinally arranged at intervals; in the sliding process of the headrest support, the clamping beads are clamped with the positioning grooves at different heights so that the headrest support can slide and then stay at the corresponding height.

2. The headrest adjusting apparatus for seats according to claim 1, characterized in that: the clamping beads are arranged at the front end of the guide block, and the left side and the right side of each clamping bead protrude outwards from the guide block; a notch is arranged at the upper end of the guide groove, the width of the notch is wider than that of the guide groove, and the notch is configured to enable the clamping bead to pass through; the clamping bead penetrates through the notch so that the guide block is in sliding fit in the guide groove; and the clamping beads can limit the front and back separation of the guide block and the guide groove.

3. The headrest adjusting apparatus for seats according to claim 2, characterized in that: the two sides of the back surface of the headrest support are symmetrically provided with longitudinally arranged slide seats, and each slide seat comprises a front slide support plate and a rear slide support plate which are arranged at intervals in the front and the rear directions; the guide groove is longitudinally arranged on the rear sliding support plate, and the positioning grooves are longitudinally arranged on the back surface of the front sliding support plate at intervals.

4. The headrest adjusting apparatus for seats of claim 3, characterized in that: after the clamping beads pass through the notches, the clamping beads are clamped between the front sliding support plate and the rear sliding support plate; the card pearl front end can cooperate with the constant head tank joint, and card pearl rear end breaks away from around with restriction guide block and guide way with back slip backup pad butt.

5. The headrest adjusting apparatus for seats according to claim 1, characterized in that: the clamping beads are made of rubber.

6. The headrest adjusting apparatus for seats according to claim 1, characterized in that: the back support piece comprises a left vertical support rod and a right vertical support rod which are symmetrical, a fixed seat is respectively connected to the two vertical support rods, and the guide block is arranged on the fixed seat.

7. The headrest adjusting apparatus for seats of claim 6, characterized in that: the fixed seat comprises a supporting plate extending towards the center direction of the back support; the guide block is longitudinally arranged on the supporting plate and protrudes forwards from the supporting plate.

8. The headrest adjusting apparatus for seats of claim 7, characterized in that: the fixed seat also comprises a connecting plate connected with the supporting longitudinal rod, and the connecting plate is backwards vertical to the supporting plate; the upper end of the supporting longitudinal rod is correspondingly provided with an inward-sunken mounting groove; the connecting plate inserts in this mounting groove and connecting plate and mounting groove joint cooperation.

9. The headrest adjusting apparatus for seats of claim 8, characterized in that: a clamping groove is arranged in the mounting groove or one of the connecting plates, and a clamping block is correspondingly arranged in the mounting groove or the other connecting plate; the connecting plate inserts and makes fixture block and draw-in groove joint in the mounting groove.

10. The headrest adjusting apparatus for seats according to claim 1, characterized in that: the headrest supporting piece is coated with a flexible headrest.

11. The headrest adjusting apparatus for seats according to claim 1, characterized in that: when the headrest supporting piece slides to the maximum height along the back supporting piece, the upper end of the headrest supporting piece upwards exceeds the upper end of the back supporting piece by 3-10 cm; when the headrest supporter slides to the minimum height along the back supporter, the upper end of the headrest supporter is lower than the upper end of the back supporter by 3-12 cm.