CN212437956U

CN212437956U - Liftable headrest structure and seat

Info

Publication number: CN212437956U
Application number: CN202021122260.3U
Authority: CN
Inventors: 戴龙飞
Original assignee: Jinmei Health Technology Shanghai Co ltd
Current assignee: Anji Sanjiu Smart Home Technology Co.,Ltd.
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-02-02
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses a liftable headrest structure and a seat, which comprises a support frame, a headrest and an installation component, wherein the support frame comprises a support part and a sliding part, and the headrest is connected on the support part; the sliding part is vertically arranged, the mounting assembly is connected to the sliding part, and the mounting assembly is in sliding fit with the sliding part; the mounting assembly comprises a front cover, a rear cover and a guide block clamped between the front cover and the rear cover, a guide groove and a plurality of limiting grooves which are in sliding fit with the guide block are arranged on the sliding part, and an elastic clamping tongue which is in clamping fit with the limiting grooves is arranged on the front cover; the front end of the front cover is provided with a mounting block, and the mounting block is provided with a mounting hole; in the utility model, the sliding part is in sliding fit with the mounting component, and the mounting component is clamped with the limiting groove through the elastic clamping tongue; when the headrest is adjusted, the height of the headrest can be adjusted only by applying force to the support frame to enable the elastic clamping tongue to contract; the headrest is connected and fixed on the chair back through the mounting block and only needs to be mounted through screws; the headrest is convenient to adjust and quick to install.

Description

Liftable headrest structure and seat

Technical Field

The utility model relates to a thing to sit on field, in particular to liftable headrest structure and 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 adjusting device of the seat on the market at present is complex in structure or inconvenient to operate and install. According to the headrest adjusting device, the double screws below the headrest are inserted into the backrest to achieve the purpose of adjusting the height, one hand is required to lift the headrest, the other hand is required to screw the bolts, and the operation is time-consuming and labor-consuming. There is also a headrest adjusting apparatus that requires a complicated mechanism to be provided in order to achieve the purpose of easy operation. The two headrest height adjusting mechanisms can be used for lifting or lowering the headrest only by the cooperative operation of two hands; and the installation of headrest and seat support is very loaded down with trivial details, inconvenient, and most seat need install by oneself after the user purchases on the net now, leads to being unfavorable for the user to install by oneself.

Chinese utility model of cn201920810589.x discloses a "lift headrest structure", including the back board, its characterized in that: the utility model discloses a chair, including back board, pipe, round bar top integrated into one piece has the headrest board, controls two round bar relative the round bar has all seted up circular recess about, two about, the inside of pipe all is pegged graft there is the round bar, round bar top integrated into one piece has the headrest board, two about circular recess is all seted up in the relative one side of round bar about, two about the equal integrated into one piece in top of the opposite face of pipe has two rectangle poles, the welding has the arc shell fragment between the rectangle pole, the round hole has been seted up at the middle part of arc shell fragment, the inside of round hole has all been pegged graft there is the second round bar, is located the left and right sides of arc shell fragment the annular plate has all been welded to the outer wall of second round bar controls two the second round hole has all been seted up on the opposite face of round bar, the one end of. Although the height adjustment of the headrest can be quickly realized by the headrest structure, the connection between the headrest and the chair back requires the insertion of a round pipe on the chair back, the round pipe is fixedly connected with the backrest plate through a bolt, and a round rod is inserted in the round pipe, so that the installation of the headrest and the backrest plate is complicated.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a liftable headrest structure and a seat which have simple structure and are convenient to install; the headrest is connected with the seat through the mounting block on the mounting assembly, and can be quickly mounted only through screw connection without inserting or configuring a complex mechanism.

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

a liftable headrest structure comprises a support frame, a headrest and a mounting assembly, wherein the support frame comprises a support part and a sliding part, and the headrest is connected to the support part; the sliding part is vertically arranged, the mounting assembly is connected to the sliding part, and the mounting assembly is in sliding fit with the sliding part; the mounting assembly comprises a front cover, a rear cover and a guide block clamped between the front cover and the rear cover, the sliding part is provided with a guide groove in sliding fit with the guide block and a plurality of limiting grooves, and the front cover is provided with an elastic clamping tongue in clamping fit with the limiting grooves; the front end of the front cover is provided with an installation block, and the installation block is provided with an installation hole. In the utility model, the sliding part is in sliding fit with the mounting component, and the mounting component is clamped with the limiting groove through the elastic clamping tongue; when the headrest is adjusted, the height of the headrest can be adjusted only by applying force to the support frame to enable the elastic clamping tongue to contract; the headrest is connected and fixed on the chair back through the mounting block and only needs to be mounted through screws; the headrest is convenient to adjust and quick to install.

Preferably, the mounting block is disposed horizontally, the left and right sides of the mounting block respectively protrude from the front cover, the rear end of the protruding portion abuts against the sliding portion, and the mounting hole is disposed at the middle position of the mounting block. The mounting block protrudes out of the front cover, so that the sliding of the sliding part is not interfered after mounting; and the rear end of the mounting block is abutted against the sliding part, so that the sliding process of the sliding part is more stable.

Preferably, the rear cover is provided with a guide block mounting groove, the guide block is mounted in the guide block mounting groove, and two sides of the guide block are respectively exposed out of the guide block mounting groove and inserted into the guide groove; the rear end of the front cover is provided with a protruding bolt, a pin hole is formed in the middle of the guide block, the bolt is inserted into the pin hole, and the front cover and the rear cover are fixedly connected through screws. The guide block is installed in the guide block installation groove, and the guide block is in plug-in fit with the front cover through a plug pin, so that the guide block is tightly clamped between the front cover and the rear cover.

Preferably, the middle position of the sliding part is provided with an avoiding window for the installation assembly to pass through, the sliding part comprises side rods positioned on the left side and the right side of the avoiding window, and the guide groove and the limiting groove are arranged on the side rods in bilateral symmetry.

Preferably, the guide groove is vertically arranged on the inner side wall of the side rod in the avoidance window, and the guide groove is positioned in the middle of the inner side wall; the limiting groove is longitudinally arranged on the inner side wall at intervals and is positioned in front of the guide groove.

Preferably, the guide block is made of rigid material, and sliding rubber is respectively sleeved at two ends of the guide block. The guide block is made of rigid materials to ensure the strength of the guide block, and sliding rubber is sleeved at two ends of the guide block to enable the headrest to have good damping hand feeling in the sliding process.

Preferably, the front cover is provided with elastic pieces capable of contracting inwards on two sides, and the elastic clamping tongues are arranged on the elastic pieces and protrude outwards from the elastic pieces. When the height of the headrest is adjusted, only force is applied to the sliding part in the vertical direction to enable the elastic clamping tongue to contract.

Preferably, the contour of the support part is matched with that of the headrest, and the headrest is fixedly connected with the support part through screws.

A seat comprises the liftable headrest structure, and the mounting block is connected and fixed on a seat back.

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

the utility model provides a liftable headrest structure and seat, compare prior art, liftable headrest structure make the headrest connect through the installation piece on the installation component and fix on the back of a chair, the installation piece on be equipped with the mounting hole, only need the screw can connect for headrest simple structure, the installation is convenient quick, convenience of customers installs by oneself; and the mounting assembly is in sliding fit with the sliding part, and is in clamping fit with the limiting groove through the elastic clamping tongue, so that during adjustment, the elastic clamping tongue can contract to adjust the height of the headrest only by applying force in the vertical direction to the sliding part, and the adjustment is easy and labor-saving.

Drawings

Fig. 1 is a schematic perspective view of a headrest structure according to an embodiment of the present invention;

fig. 2 is an exploded view of the headrest structure in an embodiment of the present invention;

fig. 3 is a schematic front perspective view of the mounting assembly connected to the sliding part according to the embodiment of the present invention;

fig. 4 is a schematic back perspective view of the mounting assembly connected to the sliding part according to the embodiment of the present invention;

fig. 5 is a schematic perspective view of a side surface of a mounting assembly according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of the back surface of the mounting assembly in the embodiment of the present invention;

fig. 7 is a schematic perspective view of the headrest structure connected to the seat according to the embodiment of the present invention.

The figures are numbered: a support frame 1; a headrest 2; a mounting assembly 3; a support part 4; a sliding section 5; a front cover 6; a rear cover 7; a guide block 8; an avoidance window 9; a side bar 10; an inner side wall 11; a guide groove 12; a limit groove 13; an elastic sheet 14; an elastic latch 15; a sliding rubber 16; an opening 17; a connecting plate 18; a guide block mounting groove 19; a connecting column 20; a connecting hole 21; a plug 22; pin holes 23; a mounting block 24; mounting holes 25; a back frame 26; the back frame upper bar 26 a.

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. 1-7, the utility model provides a liftable headrest structure, which comprises a support frame 1, a headrest 2 and a mounting component 3.

As shown in fig. 1-4, the support frame 1 includes a support portion 4 at the upper end and a sliding portion 5 connected to the lower portion of the support portion, the headrest 2 is connected to the support portion 4, the contour of the support portion 4 is adapted to the contour of the headrest 2, and the headrest 2 is attached to the support portion 4 and then fixed by screws during installation.

As shown in fig. 1 to 6, the sliding portion 5 is vertically disposed, the mounting assembly 3 is connected to the sliding portion 5, and the mounting assembly 3 is in sliding fit with the sliding portion 5, specifically: the mounting assembly 3 comprises a front cover 6, a rear cover 7 and a guide block 8 clamped between the front cover 6 and the rear cover 7; a longitudinal avoidance window 9 is arranged in the middle of the sliding part 5, and the front cover 6, the rear cover 7 and the guide block 8 are all positioned in the avoidance window 9; the sliding part 5 further comprises side bars 10 positioned at the left side and the right side of the avoidance window 9, a guide groove 12 in sliding fit with the guide block 8 is vertically arranged on an inner side wall 11 of the side bars 10 positioned in the avoidance window 9, and the guide groove 12 is positioned in the middle of the inner side wall 11; the inner side wall 11 is also provided with limiting grooves 13 which are longitudinally arranged at intervals, and the limiting grooves 13 are positioned in front of the guide grooves 12; the two sides of the front cover 6 are respectively provided with an elastic sheet 14 capable of contracting inwards, the elastic sheet 14 is provided with an elastic clamping tongue 15 protruding outwards, and the elastic clamping tongue 15 is matched with the limiting groove 13 in a clamping manner.

The specific connection mode of the mounting component 3 and the sliding part 5 is as follows: an opening 17 communicated with the guide groove 13 is arranged below the rear end of the sliding part 5, and a connecting plate 18 is arranged at the rear end of the sliding part 5 to close the opening 17; during installation, firstly, two ends of the guide block 8 are inserted into the guide groove 12 from the opening 17, and the sliding rubber 16 is respectively sleeved on two sides of the guide block 8, so that the guide block 8 and the guide groove 12 have good damping hand feeling when sliding; then the front cover 6, the back cover 7 and the guide block 8 are installed, specifically: a guide block mounting groove 19 is formed in the front end of the rear cover 6, the rear cover 7 is positioned from the rear end and is attached to the guide block 8, and the guide block 8 is embedded into the guide block mounting groove 19; the upper and lower both ends of back lid 7 all be equipped with the spliced pole 20 that outstanding forward in guide block 8, the upper and lower both ends of protecgulum 6 correspond and be equipped with connecting hole 21, and have the bolt 22 that back-projection in protecgulum 6 rear end, correspond at the intermediate position department of guide block 8 and be equipped with pinhole 23, with protecgulum 6 and back lid 7 lock make spliced pole 20 insert connecting hole 21, bolt 22 inserts 23 in the pinhole, then be connected fixedly with protecgulum 6 and back lid 7 through the screw, guide block 8 is in guide way 12 this moment, and its centre gripping is between protecgulum 6 and back lid 7 tightly, and the elasticity block tongue 15 card of protecgulum 6 both sides is gone into in the spacing groove 13 of optional position.

As shown in fig. 1-4, a transversely disposed mounting block 24 is disposed at the upper portion of the front end of the front cover 6, the left and right sides of the mounting block 24 respectively protrude out of the front cover 6, the rear end of the protruding portion abuts against the front end of the sliding portion 5, a mounting hole 25 is disposed at the middle position of the mounting block 24, and the mounting block 24 is fixed on the seat by screws, so that the headrest structure is fixed with the seat.

Then, a chair is provided, as shown in fig. 7, comprising the liftable headrest structure and the back frame 26, wherein the back frame 26 comprises a back frame upper rod 26a, and the mounting block 24 is fixed at the middle position of the back frame upper rod 26a through screw connection, so that the mounting component 3 is fixed with the back frame 26 through one screw, and the connection is quick and labor-saving; when the height of the headrest 2 is adjusted, only a vertical force is applied to the support frame 1, so that the sliding part 5 can slide in the vertical direction relative to the guide block 8 after the elastic clamping tongue 15 on the front cover 6 contracts inwards.

Claims

1. The utility model provides a liftable headrest structure which characterized in that: the headrest support comprises a support frame, a headrest and a mounting assembly, wherein the support frame comprises a support part and a sliding part, and the headrest is connected to the support part; the sliding part is vertically arranged, the mounting assembly is connected to the sliding part, and the mounting assembly is in sliding fit with the sliding part; the mounting assembly comprises a front cover, a rear cover and a guide block clamped between the front cover and the rear cover, the sliding part is provided with a guide groove in sliding fit with the guide block and a plurality of limiting grooves, and the front cover is provided with an elastic clamping tongue in clamping fit with the limiting grooves; the front end of the front cover is provided with an installation block, and the installation block is provided with an installation hole.

2. The liftable headrest structure of claim 1, characterized in that: the mounting block is transversely arranged, the left side and the right side of the mounting block respectively protrude out of the front cover, the rear end of the protruding part of the mounting block is abutted against the sliding part, and the mounting hole is formed in the middle of the mounting block.

3. Liftable headrest structure according to claim 2, characterized in that: the rear cover is provided with a guide block mounting groove, the guide block is mounted in the guide block mounting groove, and two sides of the guide block are respectively exposed out of the guide block mounting groove and inserted into the guide groove; the rear end of the front cover is provided with a protruding bolt, a pin hole is formed in the middle of the guide block, the bolt is inserted into the pin hole, and the front cover and the rear cover are fixedly connected through screws.

4. The liftable headrest structure of claim 1, characterized in that: the intermediate position department of sliding part be equipped with the window of dodging that passes for the installation component, the sliding part is including being located the side lever of dodging the window left and right both sides, guide way and spacing groove bilateral symmetry's setting on the side lever.

5. Liftable headrest structure according to claim 4, characterized in that: the guide groove is vertically arranged on the inner side wall of the side rod in the avoidance window, and the guide groove is positioned in the middle of the inner side wall; the limiting groove is longitudinally arranged on the inner side wall at intervals and is positioned in front of the guide groove.

6. Liftable headrest structure of claim 5, characterized in that: the guide block is made of rigid materials, and sliding rubber is sleeved at two ends of the guide block respectively.

7. The liftable headrest structure of claim 1, characterized in that: the elastic clamping tongues are arranged on the elastic pieces and protrude outwards from the elastic pieces.

8. The liftable headrest structure of claim 1, characterized in that: the supporting part is matched with the headrest in contour, and the headrest is fixedly connected with the supporting part through screws.

9. A seat, characterized by: the headrest structure comprises the headrest structure as claimed in any one of claims 1 to 8, wherein the mounting block is fixedly connected to a seat back.