阅读说明：本技术 一种靠背和坐垫可联动的椅子 (chair with linkage of backrest and cushion ) 是由 沈桂成 于 2019-10-21 设计创作，主要内容包括：本发明公开了一种靠背和坐垫可联动的椅子,包括椅背外框、铝合金件、椅背螺栓、U型铁、铁架、座底壳、座板和座滑动螺丝,所述座板与座底壳之间设置有坐垫拉力弹簧,所述铁架上的支撑铁通过底座螺栓与U型铁和底座壳活动连接,所述椅背外框安装在铁架上端靠后位置,所述座滑动螺丝设置有四个,四个所述座滑动螺丝由下往上依次穿过座底壳、U型铁、坐垫滑动片后与座板固定连接,所述铝合金件共设有两个,两个所述铝合金件的下端均插入在铁架上端两侧的孔内,所述椅背螺栓依次穿过椅背外框和铝合金件后与扶手螺丝固定连接。本发明具备结构简单,便于堆叠,椅背外框的倾仰角度及座板的深度可调节,同时靠背和座板可联动,提高人体舒适度。(The invention discloses a chair with a linkage function of a backrest and a cushion, which comprises a chair back outer frame, aluminum alloy pieces, chair back bolts, U-shaped irons, an iron frame, a seat bottom shell, a seat plate and seat sliding screws, wherein cushion tension springs are arranged between the seat plate and the seat bottom shell, supporting irons on the iron frame are movably connected with the U-shaped irons and the seat bottom shell through the seat bolts, the chair back outer frame is arranged at the rear position of the upper end of the iron frame, the number of the seat sliding screws is four, the four seat sliding screws sequentially penetrate through the seat bottom shell, the U-shaped irons and a cushion sliding sheet from bottom to top and then are fixedly connected with the seat plate, the number of the aluminum alloy pieces is two, the lower ends of the two aluminum alloy pieces are inserted into holes in two sides of the upper end of the iron frame, and the chair back bolts sequentially penetrate through the chair back. The chair has the advantages of simple structure, convenient stacking, adjustable inclination angle of the outer frame of the chair back and adjustable depth of the seat board, and the linkage of the backrest and the seat board, thereby improving the comfort level of human body.)

1. The utility model provides a chair that back and cushion can be linked, includes back of the chair frame (2), aluminum alloy spare (6), back of the chair bolt (12), U type iron (16), iron stand (19), seat shell (20), bedplate (23) and seat slip screw (24), its characterized in that: the two U-shaped irons (16) are arranged, one ends of the lower sides of the two U-shaped irons (16) are fixedly sleeved on two corresponding bosses on the upper end face of the seat bottom shell (20), a seat cushion sliding sheet (14) is installed on each U-shaped iron (16), the seat cushion sliding sheet (14) is fixedly connected with the seat plate (23), a seat cushion tension spring (21) is arranged between the seat plate (23) and the seat bottom shell (20), one end of the seat cushion tension spring (21) is connected with a hook close to the front in the middle of the lower end face of the seat plate (23), the other end of the seat cushion tension spring is connected with a hook close to the rear in the middle of the inner part of the seat bottom shell (20), two seat cushion buffer springs (22) are arranged at positions close to the rear of the lower end face of the seat plate (23) through screws, the lower end face of the seat bottom shell (20) is movably installed on a support iron on a cross bar of an iron frame (19), the support iron on the iron frame (19) is movably connected with U-shaped iron (16) and a base shell (20) through a base bolt (15), the chair back outer frame (2) is installed at the upper end of the iron frame (19) and leans against the rear position, four seat sliding screws (24) are arranged, the four seat sliding screws (24) sequentially penetrate through the seat bottom shell (20), the U-shaped iron (16) and the cushion sliding sheet (14) from bottom to top and are fixedly connected with the seat board (23), the upper end face of the seat board (23) is fixedly provided with seat cushion cotton (13), the number of the aluminum alloy pieces (6) is two, the lower ends of the two aluminum alloy pieces (6) are respectively inserted into holes at two sides of the upper end of the iron frame (19), a handrail main body (4) is movably installed in an upper end groove of each aluminum alloy piece (6), and a handrail elastic piece (5) is movably installed between the aluminum alloy piece (6) and the handrail main body (4), back of the chair bolt (12) pass back of the chair frame (2) and aluminum alloy spare (6) back and handrail screw (8) fixed connection in proper order, be fixed with screw gasket (9) between handrail screw (8) and aluminum alloy spare (6), handrail sound insulation cover (11) and back of the body torsional spring (10) have been cup jointed between aluminum alloy spare (6) and back of the chair frame (2).

2. A chair with interlocked backrest and cushion as claimed in claim 1, wherein: the lower extreme of iron stand (19) is equipped with four supporting legss altogether, and the lower extreme of each supporting legs all cup joints callus on the sole (18), the lower extreme of callus on the sole (18) or cup joint truckle (17).

3. a chair with interlocked backrest and cushion as claimed in claim 1, wherein: the novel chair back structure is characterized in that a chair back inner frame (1) is fixed inside the chair back outer frame (2), the chair back inner frame (1) is fixed on the inner side of the chair back outer frame (2) through a chair back steel buckle, screen cloth is installed on the outer side of the chair back inner frame (1), and the chair back outer frame (2) can rotate backwards by 5-20 degrees.

4. a chair with interlocked backrest and cushion as claimed in claim 1, wherein: the torsion value of the back torsion spring (10) is 5-15 N.M.

5. A chair with interlocked backrest and cushion as claimed in claim 1, wherein: and one end of the handrail screw (8) departing from the aluminum alloy piece (6) is sleeved with a handrail end cover (7).

6. A chair with interlocked backrest and cushion as claimed in claim 1, wherein: the handrail sound insulation sleeve (11) and the screw gasket (9) can reduce noise generated between the back torsion spring (10) and the aluminum alloy piece (6) due to movement.

7. A chair with interlocked backrest and cushion as claimed in claim 1, wherein: the upper end of the handrail main body (4) is fixed with a handrail surface cover (3), and the handrail main body (4) can rotate 75-100 degrees.

8. A chair with interlocked backrest and cushion as claimed in claim 1, wherein: the seat bottom shell (20) can rotate by 70-90 degrees, and the seat plate (23) can slide forwards by 30-60 mm under the action of the seat cushion sliding sheet (14).

Technical Field

The invention relates to a chair, in particular to a chair with a linkage function of a backrest and a cushion.

background

The chair is a seat frequently used in daily life and office space, most of the traditional chairs supported by four feet are fixed or foldable, the chair back, the armrests and the seat cushion cannot be adjusted, the comfort level is poor, and the chair is uncomfortable to sit for a long time; although some chairs with rotatable chair backs are available at present, the comfort of the chairs is still improved without linkage of the seat cushions. Meanwhile, due to the limitation of life and office space, the comfortable and convenient-to-store chair can better meet the demand of people on good life.

Disclosure of Invention

The invention aims to provide a chair with a linkage of a backrest and a cushion, which has the advantages of simple structure, convenience in stacking, adjustable inclination angle of a backrest outer frame and adjustable depth of a seat plate, and the backrest and the seat plate can be linked to improve the comfort of a human body, and solves the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a chair with a linkage backrest and a cushion comprises a backrest outer frame, an aluminum alloy part, backrest bolts, U-shaped irons, an iron frame, a seat bottom shell, a seat plate and seat sliding screws, wherein the number of the U-shaped irons is two, one ends of the lower sides of the two U-shaped irons are fixedly sleeved on two corresponding bosses on the upper end face of the seat bottom shell, a cushion sliding sheet is arranged on each U-shaped iron and fixedly connected with the seat plate, a cushion tension spring is arranged between the seat plate and the seat bottom shell, one end of the cushion tension spring is connected with a hook at the front part in the middle of the lower end face of the seat plate, the other end of the cushion tension spring is connected with a hook at the rear part in the middle of the inner part of the seat bottom shell, two cushion buffer springs are arranged at the rear part of the lower end face of the seat plate, the lower end face of the seat bottom shell is movably arranged on a support iron on a cross bar of the iron frame, the supporting iron on the iron frame is movably connected with the U-shaped iron and the base shell through a base bolt, the outer frame of the chair back is arranged at the back position of the upper end of the iron frame, the seat sliding screws are four, the four seat sliding screws sequentially penetrate through the seat bottom shell, the U-shaped iron and the cushion sliding sheet from bottom to top and then are fixedly connected with the seat plate, the upper end surface of the seat board is fixed with cushion cotton, the number of the aluminum alloy pieces is two, the lower ends of the two aluminum alloy pieces are inserted into holes at two sides of the upper end of the iron frame, a handrail main body is movably arranged in a groove at the upper end of each aluminum alloy piece, and a handrail elastic piece is movably arranged between the aluminum alloy piece and the handrail main body, the chair back bolt sequentially passes through the chair back outer frame and the aluminum alloy piece and then is fixedly connected with the handrail screw, a screw gasket is fixed between the handrail screw and the aluminum alloy piece, and a handrail sound-insulating sleeve and a back torsion spring are sleeved between the aluminum alloy piece and the chair back outer frame.

Preferably, the lower extreme of iron stand is equipped with four supporting legss altogether, and the lower extreme of each supporting leg all cup joints the callus on the sole, the lower extreme of callus on the sole or cup joint the truckle.

Preferably, a chair back inner frame is fixed inside the chair back outer frame, the chair back inner frame is fixed on the inner side of the chair back outer frame through a chair back steel buckle, mesh cloth is installed on the outer side of the chair back inner frame, and the chair back outer frame can rotate backwards by 5-20 degrees.

Preferably, the torsion value of the back torsion spring is 5-15 N.M.

Preferably, one end of the handrail screw, which is far away from the aluminum alloy piece, is sleeved with a handrail end cover.

Preferably, the handrail sound-proof sleeve and the screw gasket can reduce noise generated between the back torsion spring and the aluminum alloy piece due to movement.

Preferably, the upper end of the handrail main body is fixed with a handrail surface cover, and the handrail main body can rotate 75-100 degrees.

preferably, the seat bottom shell can rotate by 70-90 degrees, and the seat plate can slide forwards by 30-60 millimeters under the action of the seat cushion sliding sheet.

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

1. According to the invention, by arranging the chair back outer frame and the back torsion spring, when a user leans backwards, the chair back outer frame can rotate backwards by 5-20 degrees, so that the comfort of the user is increased, and when the weight of the human body leaves the chair back, the chair back can automatically reset under the action of the back torsion spring, and the chair is convenient and practical.

2. According to the invention, through the arrangement of the rotatable armrests and the arrangement of the distance between the front leg and the rear leg of the iron frame, the armrest main body can be rotated upwards by 75-100 degrees, a plurality of chairs can be vertically stacked, and the storage of the chairs is realized so as to save space.

3. The seat plate, the rotating U-shaped iron and the seat cushion sliding sheet are arranged, so that the effect of forward sliding and overturning of the seat cushion is facilitated, when the chair is used, in order to increase the comfort level of a user, the seat plate can slide forwards by 30-60 mm under the action of the seat cushion sliding sheet, meanwhile, the seat cushion can automatically reset under the action of a seat cushion tension spring at the bottom of the seat cushion when the user gets up, and when the chair is not used, a plurality of chairs can be stacked forwards and backwards through upwards overturning the seat plate by 70-90 degrees, so that the storage of the chair is realized, and the space is saved.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is an exploded view of the seat cushion of the present invention;

FIG. 3 is a schematic sectional view of the installation of the seat cushion tension spring and the seat cushion buffer spring according to the present invention;

FIG. 4 is a schematic cross-sectional view of the seat plate, the seat bottom case, the seat cushion sliding sheet, and the U-shaped iron of the present invention;

fig. 5 is an exploded view of the handrail of the present invention;

FIG. 6 is a schematic diagram of the explosive structure of the hob according to the present invention;

FIG. 7 is a block diagram of the present invention;

FIG. 8 is a schematic view of the seat cushion and the backrest frame of the present invention;

FIG. 9 is a diagram of a stacking state of the present invention;

FIG. 10 is a second stacked state diagram according to the present invention.

the reference numerals and names in the figures are as follows:

1. A chair back outer frame; 2. a chair back inner frame; 3. a handrail surface cover; 4. a handrail body; 5. a handrail elastic member; 6. an aluminum alloy part; 7. an armrest end cap; 8. an armrest screw; 9. a screw washer; 10. a back torsion spring; 11. a handrail sound insulation sleeve; 12. a seat back bolt; 13. cushion cotton; 14. a seat cushion slide sheet; 15. a base bolt; 16. u-shaped iron; 17. a caster wheel; 18. a foot pad; 19. an iron frame; 20. a base shell; 21. a cushion tension spring; 22. a cushion buffer spring; 23. a seat plate; 24. seat slide screws.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, an embodiment of the present invention includes: a chair with a linkage backrest and a cushion comprises a backrest outer frame 2, an aluminum alloy part 6, backrest bolts 12, U-shaped irons 16, an iron frame 19, a seat bottom shell 20, a seat plate 23 and seat sliding screws 24, wherein the U-shaped irons 16 are provided with two, the two U-shaped irons 16 are arranged at intervals, one ends of the lower sides of the two U-shaped irons 16 are fixedly sleeved on two corresponding bosses on the upper end surface of the seat bottom shell 20, a cushion sliding sheet 14 is arranged on each U-shaped iron 16, the cushion sliding sheets 14 are fixedly connected with the seat plate 23, a cushion tension spring 21 is arranged between the seat plate 23 and the seat bottom shell 20, one end of the cushion tension spring 21 is connected with a hook at the front part in the middle of the lower end surface of the seat plate 23, the other end of the cushion tension spring is connected with a hook at the rear part in the middle of the inside of the seat bottom shell 20, two cushion buffer springs 22 are arranged at the rear part of the, two cushion buffer springs 22 are fixed in clamping grooves at the lower end face of the seat plate 23 and close to the back through screws, in order to increase comfort of a user, the seat plate 23 can slide forwards by 30-60 mm under the action of the seat cushion sliding sheet 14, meanwhile, when the user gets up, the seat plate 23 can automatically reset through the cushion tension spring 21, the chair is convenient and practical, when the chair is not used, the seat plate 23 can be turned upwards by 70-90 degrees, a plurality of chairs can be stacked front and back, the chair can be stored, the lower end face of the seat bottom shell 20 is movably arranged on a support iron on a cross rod of an iron frame 19, the support iron on the iron frame 19 is movably connected with a U-shaped iron 16 and the seat bottom shell 20 through a base bolt 15, the chair back outer frame 2 is arranged at the upper end close to the back of the iron frame 19, four seat sliding screws 24 are arranged, and the four seat sliding screws 24 sequentially penetrate through the bottom, The back of the U-shaped iron 16 and the cushion sliding sheet 14 is fixedly connected with the seat board 23, the upper end surface of the seat board 23 is fixedly provided with cushion cotton 13, when the chair is used, a seat cloth sleeve is sleeved on the outer side of the cushion cotton 13 to prevent dust, and meanwhile, the cushion cotton 13 can be effectively protected, the number of the aluminum alloy pieces 6 is two, the lower ends of the two aluminum alloy pieces 6 are inserted into holes on two sides of the upper end of an iron frame 19, a handrail main body 4 is movably arranged in a groove on the upper end of each aluminum alloy piece 6, a handrail elastic piece 5 is movably arranged between each aluminum alloy piece 6 and the handrail main body 4, the chair back bolt 12 sequentially penetrates through a chair back outer frame 2 and the aluminum alloy pieces 6 and then is fixedly connected with a handrail screw 8, a screw gasket 9 is fixed between the handrail screw 8 and the aluminum alloy piece 6, a handrail sound insulation sleeve 11 and a back torsion spring 10 are sleeved, the torsion value of the back torsion spring 10 is 5-15N.M, the torsion value of the back torsion spring 10 is larger than the gravity value of a human body, the chair back outer frame 2 can rotate backwards by 5-20 degrees, meanwhile, both hands are placed on the armrest main body 4, the comfort level of a user is improved, and meanwhile, when the chair is stored, the armrest main body 4 can rotate upwards by 75-100 degrees, so that the chair can be conveniently and vertically stacked.

Specifically, the lower extreme of iron stand 19 is equipped with four supporting legss altogether, and the lower extreme of each supporting legs all cup joints callus on the sole 18, and the lower extreme of callus on the sole 18 has still cup jointed truckle 17 in some embodiments, truckle 17 is universal gyro wheel, the slip of the chair of being convenient for.

specifically, a chair back inner frame 1 is fixed inside the chair back outer frame 2, the chair back inner frame 1 is fixed on the inner side of the chair back outer frame 2 through a chair back steel buckle, mesh cloth is installed on the outer side of the chair back inner frame 1, the chair back outer frame 2 can rotate backwards by 5 degrees to 20 degrees, and the chair back outer frame 1 can rotate backwards by 15 degrees in the embodiment.

Specifically, one end of the handrail screw 8, which is far away from the aluminum alloy piece 6, is sleeved with a handrail end cover 7.

Specifically, the handrail sound-proof sleeve 11 and the screw gasket 9 can reduce the noise generated between the back torsion spring 10 and the aluminum alloy piece 6 due to movement.

the upper end of the handrail main body 4 is fixed with the handrail surface cover 3, and the handrail main body 4 can rotate 75-100 degrees, in the embodiment, the handrail main body 4 can rotate 90 degrees.

Specifically, the seat bottom shell 20 can rotate 70-90 °, in this embodiment the seat bottom shell 20 can rotate 80 °, the seat plate 23 can slide forward 30-60 mm under the action of the seat cushion sliding sheet 14, and in this embodiment the seat plate 23 can slide forward 40 mm.

Referring to fig. 9 and 10, when the chair needs to be stored, the seat plate 23 is turned upwards by 70-90 degrees, so that a plurality of chairs can be stacked front and back, as shown in fig. 9; rotating the armrest body 4 upward by 75 deg. -100 deg. facilitates vertical stacking of the chairs, as shown in fig. 10.

The working principle is as follows: when a user sits on the chair and leans against the back of the chair backwards, the chair back outer frame 2 rotates backwards by 5-20 degrees, the chair back outer frame 2 and the chair back inner frame 1 enable the chair back outer frame 2 to support the human body under the reaction force of the back torsion spring 10 arranged in the aluminum alloy part 6, the gravity center of the human body moves backwards while leaning against the chair back outer frame 2 and the chair back inner frame 1, the seat plate 23 is pushed to slide forwards by 30-60 millimeters, and when the gravity center of the human body leaves the chair back or the seat plate 23, the chair back outer frame 2 and the seat plate 23 can automatically reset, so that the comfort level of the user is improved; when the chair needs to be stored, the seat plate 23 is turned upwards by 70-90 degrees, the chair is convenient to stack in the front and back direction, the armrest main body 4 is turned upwards by 75-100 degrees, the chair is convenient to stack vertically, and the chair is convenient and practical.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.