CN219699445U

CN219699445U - Office chair with adjustable headrest

Info

Publication number: CN219699445U
Application number: CN202321070666.5U
Authority: CN
Inventors: 罗兴友
Original assignee: Zhejiang Anji Youshijia Furniture Co ltd
Current assignee: Zhejiang Anji Youshijia Furniture Co ltd
Priority date: 2023-05-05
Filing date: 2023-05-05
Publication date: 2023-09-19
Anticipated expiration: 2033-05-05

Abstract

The utility model relates to an office chair with an adjustable headrest, which comprises a chair back and the headrest and is characterized by further comprising a connecting piece, wherein the connecting piece is connected to the rear side of the headrest, a supporting piece is arranged on the chair back, the connecting piece is rotatably arranged at the upper end of the supporting piece, and the office chair further comprises a locking component for locking the connecting piece after the connecting piece rotates. By adopting the technical scheme, the utility model provides the office chair with the adjustable headrest, which can be used for adjusting the angle and the height of the headrest and meeting the demands of people with different heights.

Description

Office chair with adjustable headrest

Technical Field

The utility model relates to an office chair, in particular to an office chair with an adjustable headrest.

Background

Office chairs are various chairs equipped for convenience in daily work and social activities, and narrow office chairs are backrest chairs on which a person sits when performing a desk work in a sitting posture, and broad office chairs are all chairs used in offices.

At present, most office chairs have the head rest position fixed, so that the angle of the office chairs cannot be adjusted, and the sitting posture and the body depending parts of the office chairs are different when different human bodies are seated on the same chair, so that the head and neck parts can be ache after the sitting for a long time, and the office chairs are not easy to sit for a long time.

The present Chinese patent with publication number CN216534574U discloses a rotary structure of headrest of office chair, comprising:

the pillow piece is provided with two mounting parts which are distributed oppositely left and right at the rear part, the two mounting parts are provided with shaft holes which are coaxially arranged, the opposite side surfaces of the two mounting parts are provided with a plurality of concave holes, and the concave holes are sequentially and concentrically distributed around the center of the shaft holes on the same side;

the support piece is provided with a connecting part, the connecting part is installed between the two installation parts in a matched rotation way through the rotating shaft and the shaft hole, an elastic clamping piece is arranged on the side surface of the connecting part opposite to the surface where the concave hole is located, and the end part of the elastic clamping piece stretches into the concave hole;

in the process of rotating the pillow piece relative to the supporting piece, the elastic clamping piece can slide out of the current concave hole and then slide into the next adjacent concave hole according to the rotating direction.

Above-mentioned office chair, its headrest can rotate and realize the regulation of angle, but the height of headrest can't be adjusted, can't satisfy the crowd demand of different heights.

Disclosure of Invention

The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides an office chair with an adjustable headrest, which can be used for adjusting the angle and the height of the headrest and meeting the demands of people with different heights.

The technical scheme of the utility model is as follows: the utility model provides an adjustable office chair of headrest, includes back of the chair and headrest, still includes the connecting piece, the connecting piece connect the rear side of headrest, be equipped with support piece on the back of the chair, the connecting piece rotate the upper end that sets up at support piece, still including the locking component that is used for locking the connecting piece after the connecting piece rotates.

By adopting the technical scheme, the connecting piece can rotate to adjust the height of headrest, when the connecting piece overturns downwards, headrest position is in the low department, supports on the leading flank of back of the chair, is applicable to the lower crowd of height and uses, and when the connecting piece overturns upwards, the headrest is in the eminence, is located the top of back of the chair, is applicable to the higher crowd of height and uses, satisfies the use of different height crowds, adjusts according to user's demand, and locking component locks the connecting piece, prevents that it from rotating when using, causes inconvenient use.

The utility model is further provided with: the locking assembly comprises a mounting shaft, a locking groove arranged on the connecting piece and a gear matched with the locking groove and arranged on the mounting shaft, the connecting piece is sleeved outside the mounting shaft, the supporting piece is provided with the mounting groove, the mounting shaft is slidably arranged in the mounting groove, one end of the mounting shaft extends outside the mounting groove, the driving mounting shaft is slidably driven to drive the gear to be separated from the locking groove so as to unlock the connecting piece, and the mounting groove is internally provided with a reset spring for resetting outside the mounting axial mounting groove.

Adopt above-mentioned further setting, simple structure, the unblock is convenient, presses the installation axle that extends to outside the mounting groove, presses it to the mounting groove in, and the installation axle slides, and gear and locking groove separation, at this moment, can overturn the connecting piece, after unclamping the installation axle, reset spring carries out automatic re-setting to it, and gear and locking groove cooperation, the connecting piece can't overturn and realize locking this moment.

Still further, the present utility model provides: the lower end of the supporting piece is movably inserted in the rear side of the chair back and is arranged in a sliding manner along the vertical direction of the chair back.

Adopt above-mentioned still further setting, can carry out high regulation to support piece, further highly adjust the headrest, adapt to different crowds, the practicality is high.

Still further, the present utility model is provided with: the connecting piece is clamped with a locating piece which rotates synchronously with the connecting piece, the locating piece is arranged on the mounting shaft in a rotating mode, two locating blocks which are arranged oppositely are arranged in the mounting groove, and the locating piece is located between the two locating blocks.

By adopting the above arrangement, the rotation angle of the connecting piece can be limited, and the overlarge rotation angle can be prevented.

Still further, the present utility model is provided with: the back of the chair rear side is equipped with the fixing base, be equipped with the elastic locating piece on the fixing base, be equipped with on the support piece along its vertical direction and be continuous concave-convex structure, when support piece slides, the elastic locating piece slides concave-convex structure in proper order and imbeds in the concave part and lock the location with support piece.

By adopting the above arrangement, the elastic positioning block and the concave-convex structure cooperate to lock and position the supporting piece, the concave-convex structure is arranged in a inverted tooth shape, and the supporting piece can not be pulled out any more after being installed, so that the structure is firmer.

Still further, the present utility model is provided with: the rear side of fixing base is equipped with the guide holder, the middle part position of guide holder is connected with the fixing base, and both sides and fixing base interval set up the formation spout, support piece slides and sets up in the spout.

By adopting the further arrangement, the support piece has stable structure when sliding, and plays a role in guiding.

Still further, the present utility model is provided with: the upper end of support piece is equipped with two relatively distributed installation department, is equipped with the coaxial setting on two installation departments the mounting groove, be equipped with connecting portion on the connecting piece, connecting portion pass through installation axle and mounting groove cooperation rotation and install between two installation departments.

By adopting the further arrangement, the structure is compact and the installation is convenient.

Still further, the present utility model is provided with: the end of the installation shaft is provided with a limiting plate, and the side wall of the installation groove is provided with a limiting boss which is matched with the limiting plate to prevent the installation shaft from separating from the supporting piece.

By adopting the further arrangement, the mounting shaft is prevented from being separated from the supporting piece under the action of the return spring, so that the next sliding is facilitated.

Still further, the present utility model is provided with: the headrest can rotate relative to the connecting piece, the rear side of the headrest is provided with a connecting seat, and the connecting piece is arranged on the connecting seat through a fastener.

With the above still further arrangement, the headrest is rotated by a certain angle relative to the connector to achieve a head rest angle suitable for the user.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic view of a headrest in a raised position according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a headrest in a lowered position according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a connecting member and a fixing base according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a mounting shaft according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a support member according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a fixing base according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a chair back and a holder according to an embodiment of the present utility model;

fig. 9 is a schematic view illustrating the installation of a positioning member according to an embodiment of the present utility model.

Description of the embodiments

The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indications (such as up, down, front, and rear … …) in the description of the present utility model are merely for explaining the relative positional relationship, movement, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. In the description of the present utility model, "a number" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.

As shown in fig. 1-9, an office chair with an adjustable headrest comprises a chair back 1 and a headrest 2, wherein a chair seat and chair feet are in the prior art, so that the office chair is not specifically unfolded and described, the office chair further comprises a connecting piece 3, the connecting piece 3 is connected to the rear side of the headrest 2, the connecting piece 3 is arranged by adopting a connecting rod, the connecting rod 3 is provided with a supporting piece 4 on the chair back 1, the connecting piece 3 is rotatably arranged at the upper end of the supporting piece 4, the office chair further comprises a locking component which is used for locking the connecting piece 3 after the connecting piece 3 is rotatably arranged, the connecting piece 3 can be rotatably arranged, and therefore, the height of the headrest is adjusted, the position of the headrest is positioned at a lower position and is propped against the front side of the chair back when the connecting piece is turned upwards, the headrest is positioned at a higher position and is suitable for being used by higher people with different heights, the office chair is adjusted according to the requirements of users, and the locking component locks the connecting piece, so that the office chair is prevented from being inconvenient to use when being rotated when being used.

The locking assembly comprises a mounting shaft 51, a locking groove 52 arranged on the connecting piece 3 and a gear 53 arranged on the mounting shaft 51 and matched with the locking groove 52, the connecting piece 3 is sleeved outside the mounting shaft 51, the supporting piece 4 is provided with the mounting groove 41, the mounting shaft 51 is slidably arranged in the mounting groove 41, one end of the mounting shaft extends outside the mounting groove 41, a connecting sleeve 54 is connected to the mounting shaft outside the mounting groove, the other end of the mounting shaft is provided with the gear, the locking groove is also meshed with the gear in a toothed manner, the mounting shaft 41 is driven to slidably drive the gear 53 to be separated from the locking groove 52 to realize unlocking of the connecting piece 3, a reset spring used for resetting the mounting shaft 51 outside the mounting groove 52 is arranged in the mounting groove, the reset spring can be sleeved on the mounting shaft 51, one end of the mounting shaft is abutted to the inner side wall of the connecting cover, the other end of the mounting shaft is abutted to the positioning piece, the mounting shaft is pressed into the mounting groove, the reset spring is compressed, after the mounting shaft 51 is loosened, the reset shaft is reset, one end of the mounting shaft is also can be arranged on the mounting shaft close to the gear and is abutted to the limiting plate, the unlocking is conveniently arranged, the unlocking is realized, the gear can not be automatically overturned, the mounting shaft can be automatically and can be connected with the connecting piece by being connected to the connecting piece through the automatic overturning device, and can be automatically overturned, and can be automatically matched with the connecting piece, and locked by the installation groove after the installation groove is automatically, and can be overturned. The connecting piece 3 is provided with a locating piece 31 which rotates synchronously, the connecting piece 3 is provided with a notch which is matched with the shape of the locating piece, the locating piece is arranged in the notch, the locating piece 31 is rotationally arranged on the installation shaft 51, two oppositely arranged locating blocks 411 are arranged in the installation groove 41, the locating piece 31 is arranged between the two locating blocks 411, and when rotating, the locating piece is abutted with one of the locating blocks, namely, the locating piece cannot rotate any more, and the locating piece needs to rotate in the opposite direction, so that the rotating angle of the connecting piece can be limited, and the overlarge rotating angle of the locating piece is prevented. The upper end of support piece 4 is equipped with two relatively distributed installation department 42, is equipped with coaxial setting on two installation departments 41 mounting groove 41, the structure of the inside wall of one of them mounting groove 41 is the same with the locking groove, installs the axial and installs the back of sliding into, and the gear realizes circumference locking with the inside wall cooperation of mounting groove, be equipped with connecting portion 32 on the connecting piece 3, connecting portion 32 is installed between two installation departments 42 through installation axle 51 and the cooperation rotation of mounting groove 41, compact structure, simple to operate. The end of the installation shaft 51 is provided with a limiting plate 511, and the side wall of the installation groove 41 is provided with a limiting boss 412 which is matched with the limiting plate 511 to prevent the installation shaft 51 from separating from the supporting piece 4, so that the installation shaft 51 is prevented from separating from the supporting piece 4 under the action of a return spring, and the next sliding is facilitated.

The lower extreme activity of support piece 4 is pegged graft in the rear side of back of the chair 1 to slide along the vertical direction of back of the chair 1 and set up, can carry out the regulation of height to support piece 4, further highly adjust headrest 2, adapt to different crowds, the practicality is high. The back of chair 1 rear side is equipped with fixing base 11, be equipped with elastic locating piece 111 on the fixing base 11, be equipped with on the support piece 4 along its vertical direction and be continuous concave-convex structure 43, elastic locating piece 111 and concave-convex structure 43 all are equipped with two sets of, and the structure is more stable, and when support piece 4 slided, elastic locating piece 111 slided concave-convex structure 43 in proper order and embedded concave part is with support piece 4 locking location, and bead portion is the arcwall face setting, and elastic locating piece plays the locking positioning effect to support piece with concave-convex structure cooperation, and concave-convex structure is the pawl form setting, can not pull out again after the support piece installation like this, and the structure is more firm.

The rear side of fixing base 11 is equipped with guide holder 6, the middle part position of guide holder 6 is connected with fixing base 11, can dismantle with fixing base 11 through the screw and be connected, and both sides and fixing base 11 interval set up the formation spout, support piece 4 slides and sets up in the spout, and stable in structure plays the guide effect when support piece slides.

The headrest 2 can rotate relative to the connecting piece 3, the rear side of the headrest 2 is provided with a connecting seat 21, the connecting piece 3 is arranged on the connecting seat 21 through a fastener, and the headrest rotates relative to the connecting piece by a certain angle to achieve a head leaning angle suitable for a user.

Claims

1. The utility model provides an adjustable office chair of headrest, includes back of the chair and headrest, its characterized in that still includes the connecting piece, the connecting piece connect the rear side of headrest, be equipped with support piece on the back of the chair, the connecting piece rotate the upper end that sets up at support piece, still including the locking component that is used for locking the connecting piece after the connecting piece rotates.

2. The headrest-adjustable office chair according to claim 1, wherein the locking assembly comprises a mounting shaft, a locking groove arranged on the connecting piece and a gear arranged on the mounting shaft and matched with the locking groove, the connecting piece is sleeved outside the mounting shaft, the supporting piece is provided with the mounting groove, the mounting shaft is slidably arranged in the mounting groove, one end of the mounting shaft extends outside the mounting groove, the driving mounting shaft is slidably arranged to drive the gear to be separated from the locking groove to unlock the connecting piece, and a reset spring is arranged in the mounting groove and used for resetting the mounting shaft outside the mounting groove.

3. The office chair with an adjustable headrest according to claim 1 or 2, wherein the lower end of the support member is movably inserted into the rear side of the seatback and slidably disposed in the vertical direction of the seatback.

4. The office chair with the adjustable headrest according to claim 2, wherein the connecting piece is provided with a locating piece which rotates synchronously with the connecting piece, the locating piece is rotatably arranged on the mounting shaft, two oppositely arranged locating blocks are arranged in the mounting groove, and the locating piece is positioned between the two locating blocks.

5. The office chair with the adjustable headrest according to claim 3, wherein a fixing seat is arranged on the rear side of the chair back, an elastic positioning block is arranged on the fixing seat, a continuous concave-convex structure is arranged on the supporting piece along the vertical direction of the supporting piece, and when the supporting piece slides, the elastic positioning block sequentially slides through the concave-convex structure and is embedded into the concave part to lock and position the supporting piece.

6. The office chair with the adjustable headrest according to claim 5, wherein a guide seat is arranged on the rear side of the fixed seat, the middle position of the guide seat is connected with the fixed seat, two sides of the guide seat are arranged at intervals with the fixed seat to form a sliding groove, and the supporting piece is arranged in the sliding groove in a sliding manner.

7. The office chair with the adjustable headrest according to claim 2, wherein two mounting parts which are distributed oppositely are arranged at the upper end of the supporting piece, the two mounting parts are provided with the coaxially arranged mounting grooves, the connecting piece is provided with the connecting part, and the connecting part is rotatably mounted between the two mounting parts through the cooperation of the mounting shaft and the mounting grooves.

8. The office chair with adjustable headrest according to claim 2, 4 or 7, wherein the end of the mounting shaft is provided with a limiting plate, and the side wall of the mounting groove is provided with a limiting boss which is matched with the limiting plate to prevent the mounting shaft from being separated from the supporting piece.

9. The office chair with an adjustable headrest according to claim 1 or 2, wherein the headrest is rotatably arranged relative to the connecting portion, a connecting seat is provided at the rear side of the headrest, and the connecting member is mounted on the connecting seat by a fastener.