CN208892974U - Chair (Ref. now to FIGS) - Google Patents

Abstract

The utility model relates to the field of wheelchairs, in particular to a chair, which comprises a cushion, a backrest and a headrest, wherein the lower end of the backrest is rotationally connected with the rear end of the cushion, and the headrest is detachably connected with the upper end of the backrest; the upper surface of the cushion is provided with a sunken part matched with the contour of the buttocks and the thighs of the human body, the middle part of the backrest is provided with a front convex part matched with the contour of the lumbar vertebra of the human body, and the upper part of the headrest is provided with a supporting part matched with the contour of the cervical vertebra of the human body. The utility model discloses a seat, its back and headrest are separable, consequently, when needs are the motion of turning round backward, can pull down the headrest from the back to be favorable to the upper limbs to do the motion of turning round backward, increased upper part of the body home range. In addition, because the back has set up preceding convex part, has set up the depressed part on the cushion, when the back is folded on the cushion, preceding convex part just perfectly pastes and leans on in the depressed part to reduce the volume after back and cushion are folded, reduced the occupation space when the seat is deposited.

Description

Seat

Technical field

The utility model relates to wheelchair fields, and in particular to a kind of seat.

Background technique

Seat on existing wheelchair, it is all integral structure, head rest and back part that back part, which closes head rest, It can not separate；But we are had found when using this seat, when our upper body needs to do swiveling movement backward, Head rest can have inhibition to swiveling movement, and causing us to do backward, swiveling movement is extremely difficult, this can undoubtedly be reduced The convenience of seat used, causes the Experience Degree of seat poor.

In addition, the backrest of seat and cushion are after folding, the shape in opposite face can be interfered between the two, cause to roll over The volume of poststack is excessive, increases occupied space when seat storage.

Utility model content

The purpose of the utility model is to provide a kind of headrests and the separable seat of backrest, so that needing to turn backward When movement, movement can be turned round backward to be conducive to upper limb by headrest from back quick separating is leaned on.

To solve the above-mentioned problems, the utility model provides a kind of seat, including cushion, backrest and headrest, described to lean on The lower end of back is connect with the rear end thereof of the cushion, and described rest the head on is removably attachable to the upper end of the backrest；The seat The upper surface of pad is equipped with the recessed portion to match with the buttocks of human body and the profile of thigh, and the middle part of the backrest is equipped with and human body The preceding protrusion that matches of lumbar vertebrae profile, the top of the headrest is equipped with the support portion to match with the cervical vertebra profile of human body.

Preferably, the two sides of the rear end of the cushion are respectively provided with a bracket, and the lower end of the backrest, which is equipped with, to be turned Axis, the backrest are connect by the shaft with the holder pivots of the cushion；The backrest overturning is folded on the cushion When, the preceding protrusion sticks in the recessed portion.

Preferably, backrest frames are equipped in the backrest, the top of the backrest frames is equipped with the first inserting section, The opening of first inserting section exposes to the upper end of the backrest；Head pillow frame, the head pillow frame are equipped in the headrest Lower part be equipped with expose outside the headrest lower end the second inserting section, two inserting section be actively plugged in described first insert It connects in section.

Preferably, the end of first inserting section is equipped with retaining mechanism, and the retaining mechanism includes annular bundle Band, pull rod and handle, the annular banding are socketed in the end of first inserting section, the first end of the pull rod and the ring The first end of shape banding connects, the second end of the pull rod actively pass through the second end of the annular banding and with the handle Compression end rotation connection；Fiddle with the swinging end of the handle, so that pull rod tenses or unclamp the annular banding.

Preferably, the backrest frames are the stringer of two parallel arrangements and " H " type knot of crossbeam splicing Structure, first inserting section are respectively provided at the top of two stringers；The head pillow frame is a U-typed structure, the head The bottom end of the U-typed of occipital bone frame is located in the headrest, and two vertical sections on the top of the U-typed of the head pillow frame expose to The bottom of the headrest, second inserting section are separately positioned in two vertical sections.

Preferably, the two sides on the top of backrest flank with outward extension.

Preferably, the middle part of the upper end of the backrest is equipped with the lower concave part to lower recess, the lower part of the headrest Equipped with the lower protrusion being engaged with the lower concave part.

Preferably, the headrest includes pillow body portion and pillow portion, the lower end that the headrest passes through the pillow body portion It is detachably connected with the upper end of the backrest, the support portion is located in the pillow portion, and the upper end of the support portion is equipped with arc The holding unit of shape.

The seat of the utility model, backrest and headrest be it is separable, therefore, when needing to turn round movement backward, Headrest can be removed from by back, turn round movement backward to be conducive to upper limb, increase upper body scope of activities.

Further, since backrest is provided with preceding protrusion, recessed portion is provided on cushion, it is preceding when folding backrest is on cushion Protrusion just ideally sticks in recessed portion, to reduce backrest and the folded volume of cushion, reduces seat storage When occupied space.

Detailed description of the invention

Fig. 1 be the headrest of the seat of one preferred embodiment of the utility model in conjunction with backrest when structural schematic diagram；

Fig. 2 is the structural schematic diagram when headrest of the seat of one preferred embodiment of the utility model is separated with backrest；

Fig. 3 is the first inserting section of seat of one preferred embodiment of the utility model and the STRUCTURE DECOMPOSITION of the second inserting section grafting Figure.

Wherein, 1, cushion；11, recessed portion；12, bracket；2, backrest；21, preceding protrusion；22, shaft；23, flank；24, under Recess portion；3, it rests the head on；31, body portion is rested the head on；32, pillow portion；33, support portion；331, holding unit；34, lower protrusion；4, backrest frames；41, First inserting section；42, stringer；43, crossbeam；5, head pillow frame；51, the second inserting section；6, retaining mechanism；61, annular banding； 62, pull rod；63, handle.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.

In conjunction with shown in Fig. 1 to Fig. 3, a kind of seat of the utility model embodiment is schematically showed, including cushion 1, Backrest 2 and headrest 3, wherein the lower end of backrest 2 is connect with the rear end thereof of cushion 1, and 3 card of headrest is removably attachable to backrest 2 Upper end；Since headrest 3 is detachably connected with backrest 2, headrest 3 can be separated with backrest 2 when necessary, especially It is when the personage of legs and feet inconvenience is sitting on wheelchair, the scope of activities of original body is just restricted very much, by headrest 3 and backrest 2 Separation is conducive to upper body and does swiveling movement backward, increases the scope of activities of upper body；

The upper surface of cushion 1 is equipped with the recessed portion to match with the buttocks of human body and the profile of thigh, and the middle part of backrest 2 is set There is the preceding protrusion to match with the lumbar vertebrae profile of human body, to improve the comfort level of seat when in use, meets seat more The requirement of ergonomics；

The top of headrest 3 is equipped with the support portion 33 to match with the cervical vertebra profile of human body, specifically, headrest 3 includes pillow body Portion 31 and pillow portion 32, headrest 3 are detachably connected by the lower end in pillow body portion 31 and the upper end of backrest 2, and pillow body portion 31 can be The shoulder for sitting human body on the seat provides good support, prevents the shoulder of human body hanging, support portion 33 is located at pillow portion 32 On, the upper end of support portion is equipped with the holding unit 331 of arcuation, due to the cervical vertebra profile phase of the outer profile and human body of support portion 33 Match, therefore cervical vertebra can be effectively protected not and will receive extraneous damage, and the upper end of support portion 33 is equipped with the picking-up of arcuation Head can be swung back pillow in holding unit 331, to facilitate rest when needing rest by portion 331.

Please continue to refer to shown in Fig. 1, the two sides of the rear end of cushion 1 are respectively provided with a bracket 12, and the lower end of backrest 2, which is equipped with, to be turned Axis 22, backrest 2 are rotatablely connected by the bracket 12 of shaft 22 and cushion 1, fold into the overturning of backrest 2 on cushion 1 to realize Function, and when the overturning of backrest 2 is folded on cushion 1, preceding protrusion 21 is sticked on just in recessed portion 11, is leaned on to reduce Back 2 and the folded volume of cushion 1 reduce occupied space when seat storage.

Continuing with combining shown in Fig. 1 and Fig. 2, it is equipped with backrest frames 4 in backrest 2 and is leaned on increasing the structural strength of backrest 2 The top of spine frame 4 is equipped with the first inserting section 41, and the opening of the first inserting section 41 exposes to the upper end of backrest 2；It is equipped in headrest 3 Head pillow frame 5, to increase the structural strength of headrest 3, the lower part of head pillow frame 5 is inserted equipped with the second of the lower end for exposing outside headrest 3 Section 51 is connect, is actively plugged in the first inserting section 41 by the second inserting section 51 and realizes that headrest 3 is detachably connected with backrest 2 Or separation.

As shown in figure 3, the end of the first inserting section 41 is equipped with retaining mechanism 6, in order to be plugged on when the second inserting section 51 When in the first inserting section 41, the two is locked, to improve the bonding strength of the second inserting section 51 and the first inserting section 41, prevents head Pillow 3 is loosened from backrest 2；Specifically, retaining mechanism 6 includes annular banding 61, pull rod 62 and handle 63, and annular banding 61 is socketed In the end of the first inserting section 41, the first end of pull rod 62 is connect with the first end of annular banding 61, and the second end of pull rod 62 is living The second end of annular banding 61 is passed through dynamicly and is rotatablely connected with the compression end of handle 63；When the swing for the handle 63 that fiddles with End can make pull rod 62 tense or unclamp annular banding 61, headrest 3 is rapidly locked on backrest 4 to realize, or fast Annular banding 61 is unclamped fastly, 3 is rapidly removed from backrest 4 in order to rest the head on.

Please continue to refer to shown in Fig. 1 and Fig. 2, backrest frames 4 are that first stringer of two parallel arrangements and a crossbeam are spelled " H " the type structure connect further increases the whole structural strength of backrest 2, the first grafting to realize the integrated support to backrest 2 Section 41 is respectively provided at the top of two stringers 42；Head pillow frame 5 is a U-typed structure, the bottom end position of the U-typed of head pillow frame 5 In in headrest 3, to realize the integrated support to headrest 3, the whole structural strength of headrest 3 is further increased, head pillow frame 5 Two vertical sections on the top of U-typed expose to the bottom of headrest 3, and the second inserting section 51 is separately positioned in two vertical sections； Topology layout as first inserting section 41 and the second inserting section 51 can be improved headrest 3 and connect the reliability made with backrest 2, After preventing headrest 3 from connecting with backrest 2, shakes or rotate in use.

Please continue to refer to shown in Fig. 1, two sides flank 23 with outward extension on the top of backrest 2, flank 23 can be with Additional support is provided for waist, and the band of both shoulders packet can be hung on flank 23, both shoulders packet is hung over into seat to realize On purpose.

Further, the middle part of the upper end of backrest 2 be equipped with to lower recess lower concave part 24, rest the head on 3 lower part be equipped with under The lower protrusion 34 that recess portion 24 is engaged, so that the globality after headrest 3 is connect with backrest 2 is more preferable, improves the beauty of seat Property.

In conclusion the seat of the utility model embodiment, since headrest 3 is detachably connected with backrest 2, in necessity When headrest 3 can be separated with backrest 2, especially when the personage of legs and feet inconvenience is sitting on wheelchair, original body Scope of activities is just restricted very much, and headrest 3 is separated with backrest 2, is conducive to upper body and is done swiveling movement backward, increases upper body Scope of activities；And when the overturning of backrest 2 is folded on cushion 1, preceding protrusion 21 is sticked on just in recessed portion 11, to reduce Backrest 2 and cushion 1 folded volume reduce occupied space when seat storage.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change It also should be regarded as the protection scope of the utility model into replacement.

Claims (8)

1. a kind of seat, which is characterized in that including cushion, backrest and headrest, the rear end of the lower end of the backrest and the cushion Rotation connection, described rest the head on are removably attachable to the upper end of the backrest；The upper surface of the cushion is equipped with the stern with human body The recessed portion that the profile of portion and thigh matches, the middle part of the backrest are equipped with the lordosis to match with the lumbar vertebrae profile of human body Portion, the top of the headrest are equipped with the support portion to match with the cervical vertebra profile of human body.

2. seat according to claim 1, which is characterized in that the two sides of the rear end of the cushion are respectively provided with a bracket, The lower end of the backrest is equipped with shaft, and the backrest is connect by the shaft with the holder pivots of the cushion；The backrest When overturning is folded on the cushion, the preceding protrusion is sticked in the recessed portion.

3. seat according to claim 1, which is characterized in that backrest frames are equipped in the backrest, the backrest frames Top is equipped with the first inserting section, and the opening of first inserting section exposes to the upper end of the backrest；Head is equipped in the headrest Occipital bone frame, the lower part of the head pillow frame are equipped with the second inserting section for exposing outside the lower end of the headrest, and two inserting section is living It is plugged in first inserting section dynamicly.

4. seat according to claim 3, which is characterized in that the end of first inserting section is equipped with retaining mechanism, institute Stating retaining mechanism includes annular banding, pull rod and handle, and the annular banding is socketed in the end of first inserting section, described The first end of pull rod is connect with the first end of the annular banding, and the second end of the pull rod actively passes through the annular banding Second end and with the compression end of the handle be rotatablely connected；Fiddle with the swinging end of the handle so that pull rod tense or Unclamp the annular banding.

5. seat according to claim 3 or 4, which is characterized in that the backrest frames are the stringer of two parallel arrangements With " H " type structure of crossbeam splicing, first inserting section is respectively provided at the top of two stringers；The headrest bone Frame is a U-typed structure, and the bottom end of the U-typed of the head pillow frame is located in the headrest, the U-typed of the head pillow frame Two vertical sections on top expose to the bottom of the headrest, and second inserting section is separately positioned on two vertical sections On.

6. seat according to claim 1, which is characterized in that the two sides on the top of backrest side with outward extension The wing.

7. seat according to claim 1, which is characterized in that the middle part of the upper end of the backrest is equipped under lower recess Recess portion, the lower part of the headrest are equipped with the lower protrusion being engaged with the lower concave part.

8. seat according to claim 1, which is characterized in that the headrest includes pillow body portion and pillow portion, the headrest It is detachably connected by the lower end in the pillow body portion and the upper end of the backrest, the support portion is located in the pillow portion, institute The upper end for stating support portion is equipped with the holding unit of arcuation.