阅读说明：本技术 一种头枕 (Head pillow ) 是由 顾英东 陈锋 于 2019-11-06 设计创作，主要内容包括：本发明公布的头枕,包括并排布置的：第一支架、第二支架和弹性枕背,所述第一支架连接弹性枕背的一侧,所述第二支架连接弹性枕背的另一侧,所述弹性枕背由软性塑胶组成,所述第一支架或\与第二支架固定在椅子背上,所述第二支架可以相对第一支架滑动并调整弹性枕背的长度,软性塑胶能够给于人靠时候一定缓冲提高舒适度,并且调整第二支架相对第一支架移动,弹性枕背由上到下的长度改变,能够适应不同高度以及不同人群对头枕背靠的舒适度要求,结构简单,设计新颖。(The invention discloses a headrest, which comprises: first support, second support and elasticity pillow back, one side of elasticity pillow back is connected to first support, the opposite side of second leg joint elasticity pillow back, the elasticity pillow back comprises soft plastic, first support or/fix on the chair back with the second support, the second support can slide and adjust the length of elasticity pillow back first support relatively, and certain buffering improvement comfort level when people lean on can be given to soft plastic to adjust the relative first support of second support and remove, the elasticity pillow back is by the length change from the top down, can adapt to the comfort level requirement that different height and different crowds leaned on to the pillow back, simple structure, novel in design.)

1. A headrest, comprising, arranged side by side: the utility model discloses a chair back of body, including first support, second support and elasticity pillow back, one side of elasticity pillow back is connected to first support, the opposite side of second leg joint elasticity pillow back, the elasticity pillow back comprises soft plastic, first support or/and second support are fixed on the chair back of body.

2. The headrest of claim 1, wherein the first bracket is fixed to the back of the chair and the second bracket is slidable relative to the first bracket to adjust the length of the flexible headrest.

3. The headrest of claim 1, wherein the material of the elastic back comprises PVC, ABS, lead stearate, thermoplastic polyurethane elastomer, photocatalyst, nano silver and compatilizer.

4. The headrest according to claim 3, wherein the PVC, ABS, lead stearate, thermoplastic polyurethane elastomer, photocatalyst, nano-silver, and compatibilizer are in the following proportions: 1:0.1:0.45:2:0.01:0.2:3.

5. The headrest according to claim 4, wherein the elastic backrest is manufactured by a method comprising: firstly, putting 1 part of PVC, 0.1 part of ABS and three parts of compatilizer into a stirrer to be stirred into a mixture;

secondly, adding 2 parts of thermoplastic polyurethane elastomer into the mixture;

thirdly, adding 0.45 part of lead stearate and 0.01 part of photocatalyst into the mixture formed in the second step;

fourthly, plating the nano silver outside the mixture formed in the third step and finally forming.

6. The headrest according to claim 1, wherein an intermediate bracket is further disposed between the first bracket and the second bracket, the intermediate bracket is fixed to the first bracket, the second bracket is slidably connected to the intermediate bracket, the first bracket is fixed to a latch passing through the intermediate bracket, and the second bracket is provided with a first through hole for engaging with the latch.

7. The headrest according to claim 6, wherein the middle portion of the middle bracket is provided with a movable groove of the second bracket, the inner sides of the movable groove are respectively provided with two insert pieces, and both side surfaces of the second bracket are respectively provided with movable grooves of the insert pieces.

8. The headrest according to claim 6, wherein an avoidance space is formed between the first bracket and the middle bracket, and the middle bracket is provided with two parallel clamping grooves on the side of the avoidance space; the middle support is also provided with two penetrating second through holes, and the second support is respectively provided with a vertical groove at the position corresponding to the second through holes.

9. The headrest according to claim 6, wherein the head of the latch is spherical, and a spring is provided inside the head.

10. The headrest according to claim 1, wherein a third step is provided at a position where the elastic pillow back contacts the second support, a row of engaging grooves are provided at the top of the third step, the elastic pillow back is provided with engaging steps corresponding to the third step, and the ceiling of the engaging steps is provided with protrusions corresponding to the engaging grooves.

Technical Field

The invention relates to the technical field of furniture middle tables and chairs, in particular to a headrest.

Background

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a soft plastic headrest with adjustable length and curvature.

The purpose of the invention is realized by the following technical scheme: a headrest comprising, arranged side-by-side: the utility model discloses a chair back of body, including first support, second support and elasticity pillow back, one side of elasticity pillow back is connected to first support, the opposite side of second leg joint elasticity pillow back, the elasticity pillow back comprises soft plastic, first support or/and second support are fixed on the chair back of body.

In the above scheme, the second support can slide relative to the first support and adjust the length of the elastic pillow back.

In the scheme, the material of the elastic pillow back comprises PVC, ABS, lead stearate, a thermoplastic polyurethane elastomer, a photocatalyst, nano silver and a compatilizer.

In the above scheme, the PVC, ABS, lead stearate, thermoplastic polyurethane elastomer, photocatalyst, nano silver, and compatibilizer are in the following proportions: 1:0.1:0.45:2:0.01:0.2:3.

The manufacturing method of the elastic pillow back comprises the following steps: firstly, putting 1 part of PVC, 0.1 part of ABS and three parts of compatilizer into a stirrer to be stirred into a mixture;

secondly, adding 2 parts of thermoplastic polyurethane elastomer into the mixture;

thirdly, adding 0.45 part of lead stearate and 0.01 part of photocatalyst into the mixture formed in the second step;

fourthly, plating the nano silver on the mixture formed in the third step for external forming.

Preferably, an intermediate support is further arranged between the first support and the second support, the intermediate support is fixed on the first support, the second support is connected with the intermediate support in a sliding mode, a clamping tongue penetrating through the intermediate support is fixed on the first support, and a first through hole buckled with the clamping tongue is formed in the second support.

In the above scheme, the middle of the middle support is provided with a movable groove of the second support, the inner sides of the movable groove are respectively provided with two embedded sheets, and two side surfaces of the second support are respectively provided with a movable groove of the embedded sheet.

In the scheme, an avoiding space clamped into the chair back is formed between the first support and the middle support, and two parallel clamping grooves are formed in the side of the avoiding space of the middle support.

In the above scheme, the middle support is further provided with two penetrating second through holes, and the second support is respectively provided with vertical grooves at positions corresponding to the second through holes.

In the scheme, the head of the clamping tongue is spherical, and the inner side of the head is provided with the spring.

As a preferred embodiment, a third-level step is arranged at a position where the elastic pillow back contacts with the second support, a row of clamping grooves are formed in the tops of the third-level steps, the elastic pillow back is provided with an embedded step corresponding to the third-level step, and a protrusion corresponding to the clamping groove is formed in a ceiling of the embedded step.

Compared with the prior art, the invention has the following advantages and effects:

the utility model provides a, the elasticity back of the pillow comprises soft plastic, and its elasticity is flexible, gives the comfortable sensation of head a buffering that relies on, and first support is fixed on the back of the chair, through the height of the whole back of the chair of adjustment and the height of adjustment elasticity back of the pillow, the second support can slide and adjust the length and the inflation degree of elasticity back of the pillow relatively first support, adapts to the crowd of different heights, and the crowd of different levels is to the requirement of head back of the pillow comfort level.

And secondly, the material of the elastic pillow back comprises PVC, ABS, lead stearate, a thermoplastic polyurethane elastomer, a photocatalyst, nano silver and a compatilizer, and the elastic pillow back has the effects of sterilization and oxidation resistance while improving the elasticity and tensile property.

Drawings

1-a first scaffold; 2-elastic pillow back; 3-a second scaffold; 4-a middle support; 5-clamping the tongue; 6-a first via; 7-a movable groove; 8-an insert sheet; 9-a movable groove; 10-avoiding space; 11-a clamping groove; 12-a second via; 13-three steps; 14-a card slot; 15-a chimeric step; 16-projection.

Fig. 1 is an overall configuration diagram of a headrest.

Fig. 2 is a disassembled side view of the headrest.

Fig. 3 is a disassembled perspective view of the headrest.

Fig. 4 is a disassembled perspective view of the headrest.

Fig. 5 is a disassembled perspective view of the headrest.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.

Referring to fig. 1 to 5, the headrest includes, arranged side by side: first support 1, second support 3 and elasticity pillow back 2, one side of elasticity pillow back 2 is connected to first support 1, the opposite side of elasticity pillow back 2 is connected to second support 3, elasticity pillow back 2 comprises soft plastic, and its elasticity is flexible, gives the comfortable sensation of head buffering that relies on, first support 1 or/fix on the chair back (not shown in the picture) with second support 3, through the height of adjusting whole chair back and adjust the height of elasticity pillow back 2. First support 1 is fixed on the back of the chair, second support 3 can slide and adjust the length and the inflation degree of elasticity back of the pillow 2 relatively first support 1, adapts to the crowd of different heights, and the requirement of crowd of different levels to head back of the pillow comfort level.

In this embodiment, the material of the elastic pillow back 2 includes PVC, ABS, lead stearate, thermoplastic polyurethane elastomer, photocatalyst, nano silver and a compatibilizer, wherein PVC is used as a main material of the soft plastic, ABS is used as an auxiliary material for adjusting the hardness of the PVC, and a mixture is formed under dilution of the compatibilizer. The PVC, ABS, lead stearate, thermoplastic polyurethane elastomer, photocatalyst, nano-silver and compatilizer are respectively in the following proportions: 1:0.1:0.45:2:0.01:0.2:3.

The manufacturing method of the elastic pillow back 2 comprises the following steps: firstly, 1 part of PVC, 0.1 part of ABS and three parts of compatilizer are put into a stirrer to be stirred into a mixture, in the embodiment, the compatilizer can be grafted by maleic anhydride, and the maleic anhydride grafted compatilizer mainly comprises maleic anhydride grafted ABS (ABS-g-MAH), maleic anhydride grafted PE (PE-g-MAH), maleic anhydride grafted PP (PP-g-MAH), maleic anhydride grafted PS (SMA) and the like. The compatibilization mechanism of the compatilizer is that maleic anhydride groups in the compatilizer and terminal hydroxyl groups of PC resin are subjected to esterification reaction to generate a graft, PVC and ABS can be linked through chemical bonds to be fused, and the properties of the PVC and the ABS are adjusted; 2 parts of thermoplastic polyurethane elastomer is added into the mixture, the thermoplastic polyurethane elastomer has high modulus, high growth rate, high elasticity and polarity, the elasticity of the whole mixture can be improved, and the mixture is in a relaxation controllable state by strong polarity, ABS adhesion and neutralization of ABS hardness; 0.45 part of lead stearate and 0.01 part of photocatalyst are added into the mixture formed in the second step, the photocatalyst has the effect of sterilization, the photocatalyst is a generic name of a photo-semiconductor material with a photocatalytic function represented by nano-scale titanium dioxide, and the photocatalyst can generate a strong catalytic degradation function under the action of ultraviolet light and visible light, and can effectively degrade toxic and harmful gases in the air; can effectively kill various bacteria and decompose and harmlessly treat toxins released by bacteria or fungi; meanwhile, the elastic pillow back has the functions of removing formaldehyde, deodorizing, resisting pollution, purifying air and the like, the elastic pillow back 3 is prevented from easily mildewing, the lead stearate is used as a PVC stabilizer, the molecular formula is C36H70O4Pb, the lead can provide a positive electrode for the nano silver in the next step, a battery reaction is generated, and the adsorption of the nano silver is increased;

and (3) plating nano silver on the mixture formed in the third step for forming in vitro, wherein the grain diameter of the nano silver is mostly about 25 nanometers, so that the composite has strong inhibiting and killing effects on dozens of pathogenic microorganisms such as escherichia coli, gonococcus, chlamydia trachomatis and the like, and the composite does not generate drug resistance and increases the antibacterial and antioxidant performance of the whole elastic pillow back.

In this embodiment, still be equipped with middle support 4 between first support 1 and the second support 3, middle support 4 is fixed on first support 1, second support 3 and middle support 4 sliding connection, the fixed block tongue 5 that passes middle support 4 of first support 1, second support 3 is equipped with one row of first through-hole 6 with block tongue 5 buckle, middle support 4 middle part is equipped with the activity groove 7 of second support 3, activity groove 7 inboard is equipped with two embedding pieces 8 respectively, two sides of second support 3 are equipped with the activity recess 9 of embedding piece 8 respectively, and embedding piece 8 embedding activity recess 9 can prevent that second support 3 is skew at the in-process stroke that slides. When the length of the elastic pillow back 2 needs to be adjusted, the second support 3 moves in the movable groove 7, the clamping tongue 5 slides across the surface of the first through hole 6 and enters one of the first through holes 6 to fix the second support 3, and the length of the elastic pillow back 2 is determined. Preferably, the head of the clamping tongue 5 is spherical, a spring is arranged on the inner side of the head of the clamping tongue, and the power-assisted clamping tongue 5 enters the first through hole 6.

Preferably, an avoidance space 10 clamped in the chair back is formed between the first support 1 and the middle support 4, two parallel clamping grooves 11 are formed in the middle support 4 on the side of the avoidance space 10, and the chair back can be fixed through the clamping grooves 11.

In order to support the stroke track of the second support 3, the middle support 4 is further provided with two penetrating second through holes 12, the second support 4 is respectively provided with a vertical groove 13 at the position corresponding to the second through hole 12, the chair back passes through the second through hole 12 through a bolt and is clamped into the vertical groove 13, a stroke track can be provided for the second support 4, and the stroke track is more definite by combining the embedded piece 8 and the movable groove 9, so that the service life of the second support 4 is prolonged.

In order to more stably fix the elastic pillow back 2 on the second support 3, a third-level step 13 is arranged at the position where the elastic pillow back 2 contacts the second support 3, a row of clamping grooves 14 are formed in the top of the third-level step 13, the elastic pillow back 2 is provided with an embedded step 15 corresponding to the third-level step 13, a protrusion 16 corresponding to the clamping groove 14 is arranged on the ceiling of the embedded step 15, and when the protrusion 16 enters the clamping groove 14, the top surface of the second support 3 and the top surface of the elastic pillow back 2 are flat and straight.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.