CN217365180U - Pillow support structure of hair washing chair - Google Patents

Abstract

The utility model discloses a pillow of chair of washing hair holds in palm structure, including the seat support and the back of the chair, the back of the chair with the seat support rotates to be connected, the back of the chair configuration is to fix a position at a tie position of lying, the front portion of the back of the chair is equipped with washes the head, the back of the chair is close to the position of washing the head is equipped with telescopic pillow support subassembly, pillow support subassembly includes the supporting part, sets up headrest and the connecting rod of setting on the supporting part, the headrest have towards the pillow support cambered surface of the direction downward sloping of washing the head. This pillow holds in palm structure on the one hand can avoid shampoo and rivers backward flow to face and ear, and another provides the support to neck or head, and the comfort level is higher during the use, improves the experience degree of hairdressing, and overall structure is simple, easily production. The pillow support component can be adjusted in a telescopic mode, can meet the hair washing requirements of children with different heights, and is high in applicability.

Description

Pillow support structure of hair washing chair

Technical Field

The utility model relates to a hairdressing chair technical field especially relates to a pillow of chair of washing hair holds in palm structure.

Background

The mother holds the child in his/her arms, holds the head of the child with one hand, and uses the other hand to wash hair for the child, and at this time, the body of the child is inclined with high feet and low head, which easily causes strain or pressure injury to the waist of the child, and the shampoo easily flows into the eyes, ears or nostrils of the child, so that the child feels very uncomfortable. In view of the above situation, some infant-used hair-washing lounge chairs are available in the market, but the head rest of the existing hair-washing lounge chair is generally fixed, so that the applicability and the comfort are poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a pillow support structure of a hair washing chair, which can flexibly adjust a headrest.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a headrest support structure of shampoo chair, includes the seat support and the back of the chair, the back of the chair with the seat support rotates to be connected, the back of the chair configuration is for fixing a position and lying the position, the front portion of the back of the chair is equipped with shampoo portion, the back of the chair is close to shampoo portion's position is equipped with telescopic headrest and holds in the palm the subassembly, the headrest holds in the palm the subassembly and includes the supporting part, set up the headrest on the supporting part and set up the connecting rod on the supporting part, the headrest have towards the headrest support cambered surface of shampoo portion's direction downward sloping.

Furthermore, the chair back is provided with a pillow support groove for accommodating a pillow support component, the pillow support groove is provided with an opening, and the connecting rod extends into the opening to realize telescopic adjustment.

Furthermore, a first locking structure used for fixing the connecting rod on the chair back is arranged between the connecting rod and the chair back.

Further, first locking structure is including setting up the first elastic bulge behind the back of the chair and setting up a plurality of locating holes on the connecting rod, and a plurality of locating holes evenly set up along the length direction of connecting rod, and first elastic bulge can block in the locating hole in order to fix the pillow holds in the palm the subassembly and fixes on the back of the chair.

Further, the headrest is made of soft plastic materials.

Further, the headrest is detachably connected to the support portion.

Furthermore, the front end face of the supporting part is provided with a hand-pulled groove.

Further, the front portion of the back of the chair is equipped with the jack, the shampoo portion is equipped with the inserted bar, the shampoo portion with the back of the chair carries out demountable installation through inserted bar and jack matched with mode and is connected, the shampoo portion with be equipped with between the back of the chair with the second locking structure on the back of the chair is fixed to the shampoo portion.

Furthermore, the chair back is also configured to be positioned at a sitting position, a positioning mechanism is arranged between the chair back and the chair seat and comprises a positioning part and a positioning rod, the positioning part is fixedly arranged at the rear part of the chair seat, one end of the positioning rod is rotatably connected to the back of the chair back, and a third locking structure for locking the chair back at the sitting position is arranged between the other end of the positioning rod and the positioning part.

Further, the back of the chair still configures to the folding position of location on the seat support, the lower part of the back of the chair articulates the rear portion of seat support, the back of the chair can rotate around using an articulated shaft between tie position of lying and the position of sitting posture, be equipped with on the seat support with first hinge hole and the second hinge hole of articulated shaft mutually supporting, first hinge hole and second hinge hole communicate each other, work as when the articulated shaft is located first hinge hole, the back of the chair can be in tie position of lying and the position of sitting posture switch over each other, work as when the articulated shaft is located the second hinge hole, the back of the chair can be folded on the seat support.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses in, because the pillow holds in the palm the subassembly and can stretch out and draw back and adjust, through holding in the palm the subassembly with the pillow and transferring to parallel with client's nape, the head is faced back and is washed, wash behind the support subassembly of pillow, because the pillow holds in the palm the subassembly has towards the pillow of the direction downward sloping of shampoo portion holds in the palm the cambered surface, can avoid shampoo and rivers to flow back to face and ear on the one hand, and another provides the support in the face of neck or head, and the comfort level is higher during the use, improves the experience degree of hairdressing, and overall structure is simple, easy to produce. In addition, the pillow support component can be adjusted in a telescopic mode, the shampoo requirements of children with different heights can be met, and the applicability is high.

Drawings

Fig. 1 is a schematic view of a pillow structure of a hair washing chair in a lying position, showing a first usage state of a hair washing portion;

fig. 2 is a cross-sectional view of the pillow assembly provided by the present invention;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3 at C;

fig. 5 is an exploded view of a pillow support structure of a shampoo chair provided by the present invention;

fig. 6 is a schematic view of a second usage state of the head washing portion of the pillow support structure of the hair washing chair provided by the present invention;

fig. 7 is a cross-sectional view of the pillow structure of the shampoo chair in the lying position;

fig. 8 is a schematic view of a pillow support structure of a shampoo chair in a sitting position according to the present invention;

fig. 9 is a schematic view of a pillow support structure of a shampoo chair provided by the present invention in a folded position;

fig. 10 is an exploded view of the head washing unit, the chair back and the chair seat provided by the present invention, wherein at least a part of the head washing unit is embedded in the first receiving recess according to the state shown in the figure;

fig. 11 is a schematic view of a seat of a pillow structure of a shampoo chair according to the present invention;

fig. 12 is a second schematic view of a seat of a pillow support structure of a shampoo chair according to the present invention;

fig. 13 is a schematic view of a chair back of a pillow support structure of a shampoo chair according to the present invention;

fig. 14 is a second schematic view of a chair back of a pillow support structure of a hair washing chair according to the present invention;

fig. 15 is a schematic view of the back of the pillow structure of the hair washing chair positioned at the sitting position;

FIG. 16 is an enlarged partial view taken at A in FIG. 15;

FIG. 17 is an enlarged partial schematic view at B of FIG. 15;

in the figure: 10. a chair seat; 100. an arc-shaped leg supporting surface; 101. a chair leg; 1010. a first rotating shaft; 102. a first accommodating recess; 103. a first hinge hole; 104. a second hinge hole; 105. a positioning part; 106. a clamping hole; 107. a first shaft hole; 20. a chair back; 200. a smooth binding surface; 201. chair back support legs; 2010. convex edges; 202. hinging a shaft; 203. a second shaft hole; 204. a hook; 205. a jack; 206. a pillow support groove; 207. an opening; 208. positioning a rod; 2080. buckling; 2081. positioning the clamping groove; 209. a suspension bracket; 210. a first elastic protrusion; 30. washing the head; 301. inserting a rod; 302. a hanging hole; 303. a sealing plug; 40. a pillow support assembly; 400. a pillow support cambered surface; 401. a support portion; 402. a headrest; 403. a connecting rod; 404. positioning holes; 405. and (5) manually pulling the groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).

As shown in fig. 1-17, for the utility model provides a pair of pillow of shampoo chair holds in palm structure, including seat support 10 and back of the chair 20, back of the chair 20 with seat support 10 rotates to be connected, back of the chair 20 configures to and is positioned a lying position, the front portion of back of the chair 20 is equipped with washes head 30, back of the chair 20 is close to wash the position of head 30 and be equipped with telescopic pillow and hold in the palm subassembly 40, pillow holds in the palm subassembly 40 and includes supporting part 401, set up headrest 402 on supporting part 401 and set up the connecting rod 403 on supporting part 401, headrest 402 have towards the pillow of washing head 30's direction downward sloping holds in the palm cambered surface 400.

The utility model discloses in, because the pillow holds in the palm subassembly 40 and can stretch out and draw back the regulation, through holding in the palm subassembly 40 with the pillow and transferring to parallel with the back neck of client, the head is faced backward and is let the neck pillow carry washing, washing on holding in the palm subassembly 40, because the pillow holds in the palm subassembly 40 has towards the pillow of the orientation downward sloping of washing head portion 30 holds in the palm cambered surface 400, can avoid shampoo and rivers backward flow to face and ear on the one hand, and another provides the support in the face of neck or head, and the comfort level is higher during the use, improves the experience degree of hairdressing, and overall structure is simple, easily production. In addition, pillow support assembly 40 can stretch out and draw back the regulation, can adapt to different height children's hairdressing demand, and the suitability is strong.

In a preferred embodiment, the chair back 20 is provided with a pillow groove 206 for accommodating the pillow assembly 40, the pillow groove 206 is provided with an opening 207, and the connecting rod 403 extends into the opening 207 to achieve telescopic adjustment. By providing the pillow recess 206, it is convenient to accommodate the pillow assembly 40, and at the same time, the upper surface of the pillow assembly 40 and the smooth attachment surface 200 of the backrest 20 are flush with each other.

In a preferred embodiment, a first locking structure for fixing the connecting rod 403 to the seat back 20 is provided between the connecting rod 403 and the seat back 20. After the pillow support assembly 40 moves to a proper position, the first locking structure fixes the pillow support assembly on the chair back 20, so that the shampoo requirements of children with different heights can be met, and the applicability is high.

In a preferred embodiment, the first locking structure includes a first elastic protrusion 210 disposed at the back of the seat back 20 and a plurality of positioning holes 404 disposed on the connecting rod 403, the plurality of positioning holes 404 are uniformly disposed along the length direction of the connecting rod 403, and the first elastic protrusion 210 can be snapped into the positioning holes 404 to fix the pillow assembly 40 on the seat back 20. The first elastic bulge 210 is clamped with different positioning holes 404 to realize the position adjustment of the pillow support assembly 40, and the flexibility is strong. Of course, the first locking structure may also be other locking structures, such as a locking structure of a pin and a socket 205, a mortise and tenon locking, and is not limited herein.

In a preferred embodiment, the headrest 402 is made of a soft plastic material. The headrest 402 of this embodiment is made of a soft plastic material, so that the headrest 402 has a certain elasticity, and thus, a user can comfortably push the head or the neck against the headrest 402, thereby improving the comfort of hair washing.

In a preferred embodiment, the headrest 402 is detachably connected to the support portion 401. This facilitates replacement of the headrest 402 at any time, maintaining the cleanliness and hygiene of the headrest 402.

In a preferred embodiment, a hand-pulled groove 405 is provided on the front end surface of the support portion 401. Therefore, the pillow support assembly 40 is conveniently pulled, and the operation is simple and convenient.

As a preferred embodiment, the front portion of the seat back 20 is provided with a jack 205, the hair washing unit 30 is provided with an insert rod 301, the hair washing unit 30 and the seat back 20 are detachably mounted and connected in a manner that the insert rod 301 is matched with the jack 205, and a second locking structure for fixing the hair washing unit 30 on the seat back 20 is arranged between the hair washing unit 30 and the seat back 20.

In this embodiment, the shampoo portion 30 can be dismantled with the back of the chair 20 through the matched with mode of inserted bar 301 and jack 205 and be connected, on the one hand be convenient for assemble and dismantle, compare traditional shampoo portion 30 and back structure as an organic whole, the utility model discloses can change the shampoo portion 30 of different specifications in a flexible way, the flexibility is stronger. In addition, due to the detachable structure of the head washing part 30, a user can use the head washing part flexibly according to own requirements, if the head washing part 30 can be inserted into the chair back 20 for use, the head washing part 30 can also be detached from the chair back 20 and placed on the ground for use, different requirements of the user are met, and the flexibility is strong. The head washing part 30 of the embodiment is further provided with a drain hole, the drain hole is provided with a sealing plug 303, and the drain hole can be connected with a drain pipe so as to facilitate drainage, save a water pouring process and reduce labor intensity.

The utility model discloses in, showing the embodiment of second locking structure, second locking structure is including setting up the second elastic bulge behind the back of the chair 20 and setting up the locking hole on inserted bar 301, and the second elastic bulge can block into in the locking hole in order to lock head washing portion 30 on the back of the chair 20, prevents that head washing portion 30 from dropping easily. Of course, the second locking structure may also be other locking structures, such as a locking structure of a pin and a socket 205, a mortise and tenon locking, and the like, which is not limited herein.

In a preferred embodiment, the head washing unit 30 is provided with a hanging hole 302, and the seat back 20 is provided with a hanging bracket 209 adapted to the hanging hole 302. When the hair washing is not needed, the chair back 20 is switched to the sitting position, and the hair washing part 30 is hung on the hanging bracket 209, so that the hair washing part 30 is convenient to store on one hand, and the occupied space of the hair washing part 30 is reduced on the other hand.

In a preferred embodiment, the backrest 20 is further configured to be positioned at a sitting position, a positioning mechanism is disposed between the backrest 20 and the seat 10, the positioning mechanism includes a positioning portion 105 and a positioning rod 208, the positioning portion 105 is fixedly disposed at the rear portion of the seat 10, one end of the positioning rod 208 is rotatably connected to the back of the backrest 20, and a third locking structure for locking the backrest 20 at the sitting position is disposed between the other end of the positioning rod 208 and the positioning portion 105.

In the present embodiment, when the user does not need to wash his/her hair, the backrest 20 is switched from the lying position to the sitting position, and the backrest 20 is locked in the sitting position by the third locking structure, so that the backrest 20 can be fixed forward, and the user can lean on his/her back to have the function of a common chair. The switching operation of the sitting position and the reclining position of the seat back 20 of the present embodiment is simple, and the third locking structure is only required to be operated to freely switch the sitting position and the reclining position.

As a preferred embodiment, the third locking structure includes a positioning clamping groove 2081 disposed at the other end of the positioning rod 208, a buckle 2080 disposed on an inner side wall of the positioning clamping groove 2081, and a clamping hole 106 disposed on a side wall of the positioning portion 105, the positioning clamping groove 2081 can be clamped with the positioning portion 105, and the buckle 2080 can form a buckling relationship with the clamping hole 106. Of course, the third locking structure may also be other locking structures, such as a locking structure of a pin and a hole 205, a mortise structure, etc., which is not limited herein.

In a preferred embodiment, the backrest 20 is further configured to be positioned at a folding position folded on the seat 10, a lower portion of the backrest 20 is hinged at a rear portion of the seat 10, the backrest 20 can rotate around a hinge shaft 202 between a lying position and a sitting position, the seat 10 is provided with a first hinge hole 103 and a second hinge hole 104 which are engaged with the hinge shaft 202, the first hinge hole 103 and the second hinge hole 104 are communicated with each other, when the hinge shaft 202 is located in the first hinge hole 103, the backrest 20 can be switched between the lying position and the sitting position, and when the hinge shaft 202 is located in the second hinge hole 104, the backrest 20 can be folded on the seat 10.

In this embodiment, by providing the first hinge hole 103 and the second hinge hole 104 which are communicated with each other, and the hinge shaft 202 can move between the first hinge hole 103 and the second hinge hole 104, the chair back 20 can be conveniently switched between the lying position, the sitting position and the folding position, and the chair has the characteristics of simple structure and convenient operation. The backrest 20 can be folded over the seat 10, so that the length of the entire hair washing chair is reduced by at least half, further reducing the space occupied by the hair washing chair.

In a preferred embodiment, the chair back 20 comprises chair back supporting legs 201, the upper ends of the chair back supporting legs 201 are rotatably connected with the back of the chair back 20, and the chair back supporting legs 201 are configured to be positioned at an unfolding position and a folding position folded on the chair back 20; a fourth locking structure for locking the chair back supporting legs 201 at the folding position is arranged between the chair back 20 and the chair back supporting legs 201.

In the present embodiment, when the seatback 20 is positioned in the lying position, the seatback support legs 201 are switched from the folded position to the unfolded position to stably support the seatback 20 by the seatback support legs 201. When the seat back 20 is positioned in the folded position, the seat back support legs 201 are switched from the unfolded position to the folded position, so that the seat back support legs 201 are hidden inside the seat back 20, and the occupied space is greatly reduced. The back of the chair supporting leg 201 of this embodiment is the U font, and the opening 207 end orientation of U font back of the chair supporting leg 201 the back of the chair 20, the back of the chair supporting leg 201 of U font is favorable to improving the stability of supporting.

The utility model discloses in, showing the embodiment of fourth locking structure, fourth locking structure is including setting up pothook 204 behind the back of the chair 20 and setting up protruding stupefied 2010 on back of the chair supporting leg 201, and when folding the folding position on the back of the chair 20, pothook 204 forms the lock joint relation with protruding stupefied 2010 to lock back of the chair supporting leg 201 on the back of the chair 20, prevent that back of the chair supporting leg 201 from rocking at will. Of course, the fourth locking structure may also be other locking structures, such as a locking structure of a pin and a socket 205, a mortise and tenon locking, and the like, which is not limited herein.

In a preferred embodiment, a second receiving groove is formed at the back of the seat back 20, and the seat back support legs 201 can be folded and placed in the second receiving groove. Through setting up the second and holding the recess, make back of the chair supporting leg 201 hide in back of the chair 20, reduce the occupation space of back of the chair 20 to further reduce the whole occupation space of chair for washing hair.

In a preferred embodiment, a second rotating shaft and a second shaft hole 203 are arranged between the chair back supporting leg 201 and the chair back 20, the second rotating shaft is arranged on one of the chair back supporting leg 201 or the chair back 20, and the second shaft hole 203 is arranged on the other; the upper ends of the chair back supporting legs 201 are rotatably connected with the back of the chair back 20 through the rotation matching of the second rotating shaft and the second shaft hole 203. Of course, the chair back support legs 201 and the chair back 20 can be rotatably connected through other structures, which are not specifically limited herein, as long as the chair back support legs 201 and the chair back 20 can be rotatably connected.

In a preferred embodiment, a first receiving groove 102 is formed at the bottom of the seat 10, the seat 10 includes a leg 101, the upper end of the leg 101 is rotatably connected to the bottom of the seat 10, and the leg 101 can be folded and placed in the first receiving groove 102; the head wash unit 30 is at least partially disposable within the first receiving recess 102. Because the chair legs 101 are rotatably connected with the seat 10, the chair legs 101 can be folded and stored in the first accommodating groove 102, and then the chair legs 101 are hidden in the seat 10, so that the occupied space of the seat 10 is reduced. When the chair is stored, the hair washing part 30 is detached from the chair back 20, and the space occupied by the hair washing part 30 can be reduced because at least part of the hair washing part 30 can be arranged in the first accommodating groove 102, so that the occupied space of the whole hair washing chair is greatly reduced.

In a preferred embodiment, a first rotating shaft 1010 and a first shaft hole 107 are provided between the leg 101 and the seat 10, the first rotating shaft 1010 is provided on one of the leg 101 and the seat 10, and the first shaft hole 107 is provided on the other; the upper ends of the legs 101 are rotatably connected to the bottom of the seat 10 through the first shaft 1010 and the first shaft hole 107. Of course, the legs 101 and the seat 10 may also be rotatably connected by other rotating structures, which are not specifically limited herein, as long as the legs 101 and the seat 10 can be rotatably connected.

In a preferred embodiment, the chair legs 101 are composed of two pairs of splayed chair legs 101, and the four chair legs 101 are all hollow and cylindrical. A splayed leg 101 capable of stably supporting the seat 10; the hollow chair legs 101 can ensure that the hair washing chair has light weight and is convenient to carry and transport.

In a preferred embodiment, the backrest 20 has a smooth abutting surface 200 for the back of the child to lean against in the lying position, the smooth abutting surface 200 abuts against the curve of the back of the child, the smooth abutting surface 200 has a streamline arc structure with a high front and a low back, the front portion of the seat 10 smoothly transitions with the rear portion of the backrest 20, and the rear portion of the seat 10 is bent downward to form an arc-shaped leg rest surface 100.

When the back of the chair 20 is in the flat position of lying, the smooth binding face 200 of the back of the chair 20 is laminated with children's back curve mutually, and the smooth binding face 200 is the streamline arc structure of low back-to-front height, and when children were lying on back and have one's hair washed, the head was higher than the buttock, and the buttock is sunken, and the shank is leaned on arc support leg face 100, and fine confession back of the body leans on, has alleviated the fatigue of washing one's hair, has improved the comfort level of lying on back to improve the hairdressing and experience.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. The utility model provides a pillow of shampoo chair holds in palm structure, its characterized in that, includes seat support (10) and back of the chair (20), back of the chair (20) with seat support (10) rotate to be connected, back of the chair (20) configuration is to fix a position and lie in the position, the front portion of back of the chair (20) is equipped with shampoo portion (30), back of the chair (20) are close to the position of shampoo portion (30) is equipped with telescopic pillow and holds in the palm subassembly (40), pillow holds in the palm subassembly (40) including supporting part (401), headrest (402) of setting on supporting part (401) and connecting rod (403) of setting on supporting part (401), headrest (402) have towards pillow of the direction downward sloping of shampoo portion (30) holds in the palm cambered surface (400).

2. The structure of a pillow of a shampoo chair as in claim 1, characterized in that the chair back (20) is provided with a pillow recess (206) for receiving the pillow assembly (40), the pillow recess (206) is provided with an opening (207), and the connecting rod (403) extends into the opening (207) for telescopic adjustment.

3. A pillow structure of a shampoo chair, as in claim 1, characterized in that a first locking structure for fixing the connecting rod (403) to the back (20) is provided between the connecting rod (403) and the back (20).

4. The structure of a headrest for a hair washing chair as claimed in claim 3, wherein said first locking structure comprises a first elastic protrusion (210) provided at the back of said chair back (20) and a plurality of positioning holes (404) provided on said connecting rod (403), said plurality of positioning holes (404) being uniformly provided along the length direction of said connecting rod (403), said first elastic protrusion (210) being capable of being engaged in said positioning hole (404) to fix said headrest assembly (40) to said chair back (20).

5. The pillow structure of a shampoo chair as in claim 1, characterized in that the headrest (402) is made of soft gel material.

6. The pillow structure of a shampoo chair according to claim 1, characterized in that the headrest (402) is detachably connected to the support portion (401).

7. The pillow structure of a shampoo chair according to claim 1, characterized in that the front end surface of the support part (401) is provided with a hand-pull groove (405).

8. The pillow support structure of a shampoo chair as in claim 1, characterized in that the front of the chair back (20) is provided with a jack (205), the shampoo part (30) is provided with an insert rod (301), the shampoo part (30) and the chair back (20) are detachably mounted and connected by the way of the insert rod (301) matching with the jack (205), and a second locking structure for fixing the shampoo part (30) on the chair back (20) is arranged between the shampoo part (30) and the chair back (20).

9. The headrest structure of a hair washing chair as claimed in claim 1, wherein the backrest (20) is further configured to be positioned at a sitting position, a positioning mechanism is provided between the backrest (20) and the seat (10), the positioning mechanism comprises a positioning portion (105) and a positioning rod (208), the positioning portion (105) is fixedly arranged at the rear portion of the seat (10), one end of the positioning rod (208) is rotatably connected to the back of the backrest (20), and a third locking structure for locking the backrest (20) at the sitting position is provided between the other end of the positioning rod (208) and the positioning portion (105).

10. Pillow structure in a shampoo chair, in accordance with claim 9, characterised in that said back (20) is also configured to be positioned in a folded position folded onto the seat (10), the lower part of the backrest (20) is hinged to the rear part of the seat (10), the backrest (20) being able to rotate about a hinge axis (202) between a lying position and a sitting position, a first hinge hole (103) and a second hinge hole (104) which are mutually matched with the hinge shaft (202) are arranged on the chair seat (10), the first hinge hole (103) and the second hinge hole (104) are communicated with each other, when the articulated shaft (202) is positioned in the first articulated hole (103), the chair back (20) can be mutually switched between the lying position and the sitting position, when the hinge shaft (202) is positioned in the second hinge hole (104), the chair back (20) can be folded on the chair seat (10).

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