CN217827284U

CN217827284U - Flexible headrest and seat

Info

Publication number: CN217827284U
Application number: CN202221670346.9U
Authority: CN
Inventors: 彭汉强; 彭伟鸿
Original assignee: Zhejiang Yueqiang Furniture Technology Co Ltd
Current assignee: Zhejiang Yueqiang Furniture Technology Co Ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-18
Anticipated expiration: 2032-06-29

Abstract

The utility model provides a flexible headrest and seat belongs to furniture technical field, has solved current seat and has not possessed the headrest and around flexible regulatory action, does not also possess the headrest simultaneously and turns to angle regulation's effect, consequently still need improve the optimization to further promote use comfort. The telescopic headrest comprises a bending support rod, a sleeve is sleeved at the front end of the bending support rod, the front end of the sleeve is hinged with a headrest frame, at least one spring is pressed between the front end of the bending support rod and the inner wall of the sleeve, and a steering positioning structure is arranged between the sleeve and the headrest frame. This flexible headrest and seat have following beneficial effect: 1. through the elastic telescopic structure, the front and back elastic displacement of the headrest is realized, so that the headrest for the head is automatically and elastically supported, and the comfort level is improved. 2. Through turning to location structure, realize the angular adjustment of headrest to the angle of leaning on of the human body of cooperation different heights further promotes the comfort level.

Description

Flexible headrest and seat

Technical Field

The utility model belongs to the technical field of furniture, a chair, especially a flexible headrest and seat are related to.

Background

The traditional lifting chair mainly comprises a seat board, a backrest, a bracket rocker arm, a lifting positioning device and chair legs, wherein the bracket rocker arm is correspondingly hinged between the bracket and the chair legs, the bracket rocker arm rotates up and down by taking a hinged shaft hinged on the chair legs as a circle center, and the bracket is driven to lift when the bracket rocker arm is shaken to realize the lifting of the seat board; in addition, a lifting positioning device is arranged between the bracket and the chair leg.

The lifting chair can lift and lower the headrest part except the seat part, and can lift and lower the headrest part after being improved. For example, the chinese patent No. 106109345, "structure for adjusting the headrest of a chair", for being mounted on a backrest frame of the chair to enable the headrest to move up and down relative to the backrest frame, includes a sliding member, which is an elongated body extending up and down, having a headrest connecting portion at an upper end thereof for connecting with the headrest, an inward-recessed space being formed at a side surface thereof, and a first row of teeth being formed at a side wall of the inward-recessed space in an upward and downward direction; a fixing member detachably mounted on the backrest frame and composed of a front seat portion and a rear cover portion opposite to each other, wherein the front seat portion has a first sliding slot facing the sliding member, and a side wall of the first sliding slot is provided with a button slot corresponding to the first tooth row of the sliding member; wherein the rear cover portion has a second sliding slot facing the sliding member, wherein the sliding member is vertically slidably disposed between the first sliding slot of the front base portion and the second sliding slot of the rear cover portion; and a button member elastically and movably embedded in the button groove of the fixing member, comprising a pressing part protruding out of the front seat part of the fixing member for pressing; a key integrally formed on one side of the pressing portion and extending toward the button slot of the fixing member; a first gear row which is arranged on one side surface of the convex key part and is used for being correspondingly engaged with or separated from the sliding part; at least one elastic part is used for providing elastic restoring force after the button piece is pressed; when the button member is pressed to enter the button slot of the fixed member, the button tooth row of the button member is displaced to leave the first tooth row of the sliding member, so that the sliding member can be displaced up and down relative to the fixed member to synchronously adjust the up and down position of the headrest; when the sliding piece is adjusted to a new position and the pressing of the button piece is released, the button piece is reset by the elastic restoring force of the at least one elastic part, the button tooth row of the button piece is reset and is meshed with the first tooth row of the sliding piece to a new position, and the sliding piece and the headrest are positioned at the new position after adjustment.

The adjustment that the height of the headrest goes up and down has been realized to above-mentioned patent, nevertheless does not possess the regulation effect that the headrest is flexible around, does not possess the headrest simultaneously and turns to angle regulation's effect yet, consequently still need improve the optimization to further promote use comfort.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides a telescopic headrest and a seat which can realize the adjustment of the front and back extension and the inclination angle of the headrest by combining elastic extension and steering positioning.

The purpose of the utility model can be realized by the following technical proposal: the telescopic headrest comprises a bending support rod, wherein the front end of the bending support rod is sleeved with a sleeve, the front end of the sleeve is hinged with a headrest frame, at least one spring is arranged between the front end of the bending support rod and the inner wall of the sleeve in a pressing mode, and a steering positioning structure is arranged between the sleeve and the headrest frame.

In foretell flexible headrest, turn to location structure and locate including protruding the screens lug of sleeve front end, set up the arc recess on the headrest frame, arrange along turning to the scope in the arc recess and set up a plurality of screens grooves, the screens lug embedding is arbitrary form the location joint in the screens groove.

In foretell flexible headrest, the screens lug is specifically semi-circular lug, and is a plurality of the screens groove is the circular arc recess that sets up in succession, and is adjacent pass through arc chamfer transition between the screens groove.

In the above-mentioned telescopic headrest, the steering positioning structure further includes slide guide projections located on both sides of the positioning projection, slide guide through grooves are formed on both sides of the arc-shaped groove on the headrest frame, and the slide guide projections extend into the slide guide through grooves in a one-to-one correspondence manner to form the steering sliding connection.

In the telescopic headrest, the front end of the sleeve is fixedly provided with the hinge barrel, the headrest frame is symmetrically and fixedly provided with the two hinge sleeves, the hinge barrel is embedded between the two hinge sleeves to form a communicating pore channel, and the hinge shaft is inserted in the communicating pore channel to ensure that the headrest frame is rotatably connected with the sleeve.

In the telescopic headrest, the sleeve is internally and fixedly provided with the guide cylinder, the front end of the bent support rod is internally provided with the guide groove, one end of the spring extends into the guide cylinder, the other end of the spring extends into the guide groove, and the guide cylinder extends into the guide groove to form contact type sliding connection.

In the above-mentioned telescopic headrest, a stroke groove is formed in the sleeve, guide sliding strips are convexly arranged on two sides of the stroke groove in parallel, a guide sliding groove is correspondingly and concavely arranged on the outer wall of the bent supporting rod, the sleeve is sleeved with the bent supporting rod, so that the guide sliding strips are embedded into the guide sliding groove to form sliding connection, a screw is fixedly penetrated through the bent supporting rod, and the screw penetrates through the stroke groove and forms limiting abutment with two ends of the stroke groove.

In foretell flexible headrest, the branch of buckling is including being horizontal pole and the montant of 90 buckling, the installation component is established to the montant facial make-up, the installation component includes fixing base and fast-assembling shell, wear to establish the bolt that is used for linking firmly the back of the chair on the fixing base, the fast-assembling shell through inboard dismouting mouth lock joint in the fixing base periphery.

In foretell flexible headrest, set up the lift slide on the montant, link firmly the slider on the fast-assembling shell, the slider stretches into form vertical sliding connection in the lift slide, set up a plurality of constant head tanks along vertical arrangement is concave in the lift slide, inlay on the slider and establish elastic locating element, the elastic locating element card embedding is arbitrary form high joint location in the constant head tank.

A seat comprising a retractable headrest according to any preceding claim.

Compared with the prior art, the telescopic headrest and the seat have the following beneficial effects:

1. through the elastic telescopic structure, the front and back elastic displacement of the headrest is realized, so that the headrest for the head is automatically and elastically supported, and the comfort level is improved.

2. Through turning to location structure, realize the angular adjustment of headrest to the angle of leaning on of the human body of cooperation different heights further promotes the comfort level.

Drawings

Fig. 1 is a perspective view of the overall structure of the present retractable headrest.

Fig. 2 is a perspective view of the head rest frame in the present retractable head rest.

Fig. 3 is a perspective view of the present telescoping headrest center sleeve.

Fig. 4 is a perspective view of the bending strut in the retractable headrest.

Fig. 5 is a perspective view of the mounting assembly in the present retractable headrest.

In the figure, 1, a strut is bent; 101. a lifting slideway; 102. positioning a groove; 103. a guide groove; 2. a spring; 3. a sleeve; 301. a clamping convex block; 302. a sliding guide projection; 303. a guide cylinder; 304. a stroke slot; 4. Hinging a shaft; 5. a headrest frame; 501. a clamping groove; 502. a sliding guide groove; 6. a fixed seat; 7. quickly mounting a shell; 8. a slider; 9. an elastic positioning piece.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 to 4, the retractable headrest includes a bending support rod 1, a sleeve 3 sleeved at the front end of the bending support rod 1, a headrest frame 5 hinged at the front end of the sleeve 3, at least one spring 2 pressed between the front end of the bending support rod 1 and the inner wall of the sleeve 3, and a steering positioning structure arranged between the sleeve 3 and the headrest frame 5.

The steering positioning structure comprises a clamping convex block 301 which is convexly arranged at the front end of the sleeve 3, an arc-shaped groove is arranged on the headrest frame 5, a plurality of clamping grooves 501 are arranged in the arc-shaped groove along the steering range, and the clamping convex block 301 is embedded into any one of the clamping grooves 501 to form positioning clamping. When the headrest frame 5 swings up and down around the hinge shaft 4, the arc-shaped groove swings circumferentially relative to the clamping convex block 301, and when the headrest frame 5 stops swinging, the clamping convex block 301 is correspondingly clamped into the clamping groove 501 at the corresponding position, so that the angle adjustment of the headrest frame 5 is completed.

Screens lug 301 specifically is semi-circular lug, and a plurality of screens groove 501 are the circular arc recess that sets up in succession, through arc chamfer transitional coupling between the adjacent screens groove 501. The clamping convex block 301 and the clamping groove 501 are both arranged in a circular arc structure, so that smooth sliding contact is formed in the relative swinging process.

The steering positioning structure further comprises sliding guide convex blocks 302 positioned at two sides of the clamping convex block 301, sliding guide through grooves 502 are formed at two sides of the arc-shaped groove on the headrest frame 5, and the sliding guide convex blocks 302 correspondingly extend into the sliding guide through grooves 502 one by one to form steering sliding connection. The top end of the slide guide projection 302 is an arc end, and the slide guide groove 502 is an arc groove. Through the steering sliding fit of the sliding guide convex block 302 and the sliding guide through groove 502, the guiding stability during the swinging and the positioning of the headrest frame 5 is provided, and the swinging and the positioning are prevented from being deviated.

The front end of the sleeve 3 is fixedly provided with a hinge barrel, the headrest frame 5 is symmetrically and fixedly provided with two hinge sleeves, the hinge barrel is embedded between the two hinge sleeves to form a communicating pore channel, and the communicating pore channel is internally inserted with a hinge shaft 4 to ensure that the headrest frame 5 is rotatably connected with the sleeve 3. The clamping convex block 301 and the sliding guide convex block 302 are both fixedly arranged on the outer wall of the hinge barrel, and the arc-shaped groove and the sliding guide through groove 502 are arranged between the two hinge sleeves.

The guide cylinder 303 is fixedly arranged in the sleeve 3, the guide groove 103 is formed in the front end of the bent support rod 1, one end of the spring 2 extends into the guide cylinder 303, the other end of the spring 2 extends into the guide groove 103, and the guide cylinder 303 extends into the guide groove 103 to form contact type sliding connection. The assembly positioning of the spring 2 is realized through the guide cylinder 303 and the guide groove 103, and meanwhile, the guide cylinder 303 and the guide groove 103 are connected in a guide sliding mode to play a guide role in the extension and contraction of the spring 2.

The sleeve 3 is provided with a stroke groove 304, the two sides of the stroke groove 304 are parallelly and convexly provided with guide sliding strips, the outer wall of the bent supporting rod 1 is correspondingly and concavely provided with guide sliding grooves, the sleeve 3 is sleeved with the bent supporting rod 1 to enable the guide sliding strips to be embedded into the guide sliding grooves to form sliding connection, the bent supporting rod 1 is fixedly penetrated with screws, and the screws penetrate through the stroke groove 304 and form limiting and resisting with the two ends of the stroke groove 304.

Through the assembly and the cooperation of the screw and the stroke groove 304, the sleeve 3 and the bent support rod 1 are connected and assembled on one hand, and the limit of the telescopic stroke range is realized on the other hand. Through the sliding fit of leading draw runner and guide chute, play the guide effect in flexible stroke, improve stably, the skew takes place for the nature is avoided.

Compared with the prior art, the telescopic headrest has the following beneficial effects:

1. through elastic telescopic structure, realize the front and back elastic displacement of headrest to automatically, carry out elastic support to the head pillow, improve the comfort level.

Example two

This embodiment is substantially the same as the first embodiment, except that:

as shown in fig. 5, the bending support rod 1 comprises a cross rod and a vertical rod which are bent by 90 degrees, the vertical rod is provided with an installation component, the installation component comprises a fixed seat 6 and a quick-mounting shell 7, a bolt for fixedly connecting the chair back is arranged on the fixed seat 6 in a penetrating manner, and the quick-mounting shell 7 is buckled on the periphery of the fixed seat 6 through an inner side disassembly and assembly opening.

The inner side of the dismounting opening is provided with an inclined fast-assembling space, and steering abdicating allowance is provided during dismounting through the inclined fast-assembling space, so that fast dismounting operation of the headrest part and the chair back is realized.

A lifting slide way 101 is arranged on the vertical rod, a slide block 8 is fixedly connected to the quick-mounting shell 7, the slide block 8 extends into the lifting slide way 101 to form vertical sliding connection, a plurality of positioning grooves 102 are concavely formed in the lifting slide way 101 along vertical arrangement, an elastic positioning piece 9 is embedded on the slide block 8, and the elastic positioning piece 9 is embedded into any one positioning groove 102 to form high clamping positioning.

The slide block 8 slides relatively along the lifting slide way 101 through the lifting adjusting bent support rod 1, and after the slide block is adjusted to a required position, the elastic positioning piece 9 is clamped and embedded into the positioning groove 102 at the corresponding position to form fixation, so that the height adjustment of the headrest is realized.

EXAMPLE III

Based on the first embodiment and the second embodiment, the present embodiment is different in that:

a seat comprises the telescopic headrest.

Compared with the prior art, the chair has the following beneficial effects:

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although bent struts 1 are used more herein; a lifting chute 101; a positioning groove 102; a guide groove 103; a spring 2; a sleeve 3; a clamping bump 301; a sliding guide projection 302; a guide cylinder 303; a travel slot 304; a slide guiding strip; a hinged shaft 4; a headrest frame 5; a clamping groove 501; a guiding and sliding through groove 502; a fixed seat 6; a quick-mounting case 7; a slide block 8; elastic retainer 9, etc., without excluding the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. The telescopic headrest comprises a bending support rod and is characterized in that the front end of the bending support rod is sleeved with a sleeve, the front end of the sleeve is hinged with a headrest frame, at least one spring is pressed between the front end of the bending support rod and the inner wall of the sleeve, and a steering positioning structure is arranged between the sleeve and the headrest frame.

2. The retractable headrest of claim 1, wherein the steering positioning structure includes a plurality of detent projections protruding from a front end of the sleeve, the headrest frame has an arc-shaped recess, a plurality of detent grooves are formed in the arc-shaped recess along a steering range, and the detent projections are embedded in any of the detent grooves to form a positioning clip.

3. The retractable headrest according to claim 2, wherein said locking protrusions are semi-circular protrusions, and a plurality of said locking grooves are continuously formed in a circular arc shape, and adjacent locking grooves are transitionally connected by an arc-shaped chamfer.

4. The retractable headrest of claim 2, wherein the steering positioning structure further comprises slide guide protrusions located on two sides of the position-locking protrusion, slide guide through grooves are formed on two sides of the arc-shaped groove on the headrest frame, and the slide guide protrusions correspondingly extend into the slide guide through grooves one to form a steering sliding connection.

5. The retractable headrest of claim 1, wherein the front end of the sleeve is fixedly provided with two hinge sleeves, the two hinge sleeves are symmetrically and fixedly arranged on the headrest frame, the hinge sleeves are embedded between the two hinge sleeves to form a communication channel, and a hinge shaft is inserted into the communication channel to rotatably connect the headrest frame and the sleeve.

6. The retractable headrest of claim 1, wherein a guide cylinder is fixedly disposed in the sleeve, a guide groove is disposed in a front end of the bending strut, one end of the spring extends into the guide cylinder, the other end of the spring extends into the guide groove, and the guide cylinder extends into the guide groove to form a contact sliding connection.

7. The retractable headrest according to claim 1, wherein the sleeve is provided with a travel slot, two sides of the travel slot are provided with parallel guide sliding strips in a protruding manner, the outer wall of the bending support rod is correspondingly provided with a concave guide sliding slot, the sleeve is sleeved with the bending support rod to enable the guide sliding strips to be embedded into the guide sliding slots to form sliding connection, the bending support rod is fixedly penetrated with a screw, and the screw penetrates through the travel slot and forms a limit stop with two ends of the travel slot.

8. The retractable headrest of claim 1, wherein the folding support rod comprises a cross rod and a vertical rod which are 90 ° folded, the vertical rod is provided with a mounting assembly, the mounting assembly comprises a fixing seat and a quick-mounting shell, a bolt for fixedly connecting the chair back is arranged on the fixing seat in a penetrating manner, and the quick-mounting shell is buckled on the periphery of the fixing seat through an inner dismounting opening.

9. The retractable headrest of claim 8, wherein the vertical rod is provided with a lifting slide way, the quick-mounting housing is fixedly connected with a slide block, the slide block extends into the lifting slide way to form a vertical sliding connection, a plurality of positioning slots are formed in the lifting slide way along a vertical arrangement in a concave manner, an elastic positioning element is embedded in the slide block, and the elastic positioning element is embedded in any one of the positioning slots to form a high-degree clamping positioning.

10. A seat comprising a retractable headrest according to any one of claims 1 to 9.