阅读说明：本技术 一种沙发 (A kind of sofa ) 是由 林亚东 朱良彬 李智 于 2019-09-29 设计创作，主要内容包括：本发明属于家具技术领域,具体的说是一种沙发；包括靠背、坐垫、扶手和吸尘单元；所述靠背安装在坐垫上；所述扶手安装在坐垫上,且同时与靠背接触；所述坐垫内开有一号空腔；所述吸尘单元安装在坐垫底端,吸尘单元包括橡胶壳体和吸尘管,当人们离开沙发时,一号空腔在自身材料的弹性作用下发生恢复,从而通过吸尘管产生吸力,此时密封板在挡块的作用下无法发生转动,则弹片在吸力的作用下打开,并将地面上的灰尘吸入吸尘管内,最后再由多孔碳板将灰尘吸附,实现了对沙发底部灰尘的清洁,避免了沙发底部推积灰尘的情况,提高房屋的整体洁净度。(The invention belongs to technical field of furniture, specifically a kind of sofa；Including backrest, cushion, handrail and cleaner unit；The backrest is mounted on cushion；The handrail is mounted on cushion, and simultaneously and by back contacts；No.1 cavity is provided in the cushion；The cleaner unit is mounted on cushion bottom end, cleaner unit includes rubber shell and sweep-up pipe, when people leave sofa, No.1 cavity restores under the elastic reaction of own material, to generate suction by sweep-up pipe, sealing plate can not rotate under the action of block at this time, then elastic slice is opened under the action of suction, and it will be in the dust sucking sweep-up pipe on ground, finally dust is adsorbed by porous carbon sheet again, the cleaning to sofa bottom dust is realized, the case where sofa bottom pushes away dust stratification dirt is avoided, improves the overall cleanliness factor in house.)

1. a kind of sofa, it is characterised in that: including backrest (1), cushion (2), handrail (3) and cleaner unit (4)；The backrest (1) it is mounted on cushion (2)；The handrail (3) is mounted on cushion (2), and contacts simultaneously with backrest (1)；The cushion (2) Inside it is provided with No.1 cavity (21)；The cleaner unit (4) is mounted on cushion (2) bottom end, and cleaner unit (4) includes rubber shell (41) and sweep-up pipe (42)；Sweep-up pipe (42) top is connected to by tracheae (43) with No.1 cavity (21), and in sweep-up pipe (42) top is equipped with porous carbon sheet (421), and sweep-up pipe (42) bottom end is symmetrically arranged with elastic slice (422), and two elastic slices (422) mutually support Firmly, so that air-flow can only do one-way flow from sweep-up pipe (42) bottom end to sweep-up pipe (42) top；Rubber shell (41) set On sweep-up pipe (42), rubber shell (41) side wall is equipped with No. two cavitys (411), and No. two cavitys (411) and sweep-up pipe (42) it is connected to, the inner sidewall of rubber shell (41) is equipped with puff prot (412)；It is biased to rubber jar in puff prot (412) direction At the center of body (41), and puff prot (412) is connected to No. two cavitys (411)；No. two cavitys (411) are close to sweep-up pipe (42) it is hinged with sealing plate (413) on end by torsional spring, and is being equipped with block (414) at sealing plate (413), so that Air-flow can only do one-way flow from sweep-up pipe (42) to No. two cavitys (411)；Pass through cushion (2), rubber shell (41), porous carbon The dust under sofa is cleaned in the cooperation of plate (421) and sweep-up pipe (42).

2. a kind of sofa according to claim 1, it is characterised in that: the side wall of the sweep-up pipe (42) is equipped with opening (423)；The lateral wall of the rubber shell (41) is being equipped with coherent unit (5) at opening (423)；The coherent unit It (5) include wind wheel (51), adhesive tape (52) and rotating wheel (53)；The wind wheel (51) is connected to rubber shell by holder pivots (41) on lateral wall, and a half vane of wind wheel (51) protrudes into opening (423), so that when having air-flow by sweep-up pipe (42) And airflow direction be from tracheae (43) to sweep-up pipe (42) when, can blow wind wheel (51) rotate；The rotating wheel (53) passes through Holder pivots be connected to wind wheel (51) symmetrical rubber shell (41) lateral wall on；The adhesive tape (52) is through opening (423), and the adhesive face of adhesive tape (52) is backwards to tracheae (43), so that adhesive tape (52) is to the bulky grain dust by sweep-up pipe (42) It is adhered to, and adhesive tape (52) unworn position is wrapped on rotating wheel (53), adhesive tape (52) used position is wrapped in wind It takes turns on (51), when air-flow blows wind wheel (51) rotation, rotating wheel (53) rotation can be driven by wind wheel (51), to carry out The new and old replacement of adhesive tape (52)；By the cooperation of wind wheel (51), adhesive tape (52) and rotating wheel (53) to by sweep-up pipe (42) Bulky grain dust is adhered to, and the cleanliness of sofa bottom is enhanced.

3. a kind of sofa according to claim 2, it is characterised in that: symmetrical on the bottom end side wall of the rubber shell (41) It is provided with sliding slot (415), and is connected with sliding block (416) by spring slide in sliding slot (415), the sliding block (416) is closely The side wall in face is equipped with hairbrush (417), and two sliding blocks (416) are separate round with wind wheel (51) and rotating wheel (53) respectively by cord The side wall of the heart connects, so that wind wheel (51) and rotating wheel (53) are pullled sliding block (416) during rotation and come in sliding slot (415) Sliding is returned, to carry out cleaning action to ground with electric brush (417).

4. a kind of sofa according to claim 1, it is characterised in that: be equipped with No. three cavitys (31) in the handrail (3)；Institute It states rubber shell (41) and is being equipped with piston rod (418) at sliding slot (415), and piston rod (418) passes through hose and No. three skies Chamber (31) connection, so that after handrail (3) are pressurized, in gas transport to the piston rod (418) in No. three cavitys (31), thus sharp Rubber shell (41) side wall is jacked up with piston rod (418), expands the pick-up performance of cleaner unit (4).

5. a kind of sofa according to claim 1, it is characterised in that: the tracheae (43) is at the end close to sweep-up pipe (42) Portion is equipped with filter screen (431), is accumulated after effectivelying prevent dust to suck No.1 cavity (21) by tracheae (43), to influence The using effect of sofa.

6. a kind of sofa according to claim 5, it is characterised in that: the material of the sweep-up pipe (42) is superfine fibre, Dust in sweep-up pipe (42) can be adsorbed, to enhance the adsorption effect of cleaner unit (4).

Technical field

The invention belongs to technical field of furniture, specifically a kind of sofa.

Background technique

Sofa has been furniture necessary to many families.Sofa available on the market generally have low back sofa, highback sofa and It selects to buy for consumer between three kinds of common sofa between the above two；Low back sofa: belong to the easy chair of rest type.It with This sofa backrest height of waist (lumbar vertebrae) that one supporting point carrys out support user is lower, generally apart from 370 millimeters of left sides of seat surface The angle on the right side, backrest is also smaller, not only contributes to rest, and reduces entire sofa Outside Dimensions accordingly.This sofa is removed Move more convenient, light and handy, occupied area is small.Highback sofa: also known as aviation formula seat.Its feature is that there are three fulcrums, is made one Waist, shoulder, hindbrain lean against curved surface simultaneously by back.These three supporting points do not constitute straight line spatially, thus make This sofa technical requirements are higher, and it is also bigger that when purchase selects difficulty.Manufacture the yoke of highback sofa, it is necessary to bright on the top of the shelf 3 points of turnover faces constituted really are carried out, otherwise carry out being difficult to ensure the position of supporting point, to give when the processes such as sofa is masked User brings discomfort.It is noted that whether the composition of three supporting points at its back side is reasonable, appropriate when choosing highback sofa, It can be determined by trying seat.Highback sofa is made of chaise longue differentiation.To improve rest performance, footstool can be also manufactured, is put Before setting sofa, height can be identical as the forward position height of sofa seat surface.Common sofa: being one kind common in home-use sofa.City What is sold on field is mostly this kind of sofa.It can be obtained and body back phase there are two lumbar vertebrae, the thoracic vertebrae of supporting point support user Cooperate the effect of curved surface.The angle of such sofa backrest and seat surface is very crucial, and angle is excessive or too small will all cause user's Abdominal muscles are strong, generate fatigue.Equally, the width of sofa seat surface also should not be too large, usually by standard requirements 540 millimeters it Interior, the shank of such user can arbitrarily adjust sitting posture, rest more comfortable.

Although sofa is brought comfortably to our life, some problems are also brought simultaneously, since sofa is heavier, In It when cleaning, is not easy to drag everyday, and the atmosphere draught-free of sofa bottom, people when sitting sofa, also can by the dust of sole Into sofa bottom, therefore it will cause dust and largely accumulated in sofa bottom, germ easy to breed influences health at home.

Summary of the invention

In order to make up for the deficiencies of the prior art, it solves, in cleaning, to be not easy to drag everyday since sofa is heavier, and The atmosphere draught-free of sofa bottom, for people when sitting sofa, the dust of sole can also enter sofa bottom, therefore will cause dust It is largely accumulated in sofa bottom, germ easy to breed, influences the problem of health at home；The invention proposes a kind of sofas.

The technical solution adopted by the present invention to solve the technical problems is: a kind of sofa of the present invention, including backrest, Cushion, handrail and cleaner unit；The backrest is mounted on cushion；The handrail is mounted on cushion, and is connect simultaneously with backrest Touching；No.1 cavity is provided in the cushion；The cleaner unit is mounted on cushion bottom end, and cleaner unit includes rubber shell and suction Dirt pipe；The sweep-up pipe top is connected to by tracheae with No.1 cavity, and is equipped with porous carbon sheet, sweep-up pipe bottom on sweep-up pipe top End is symmetrically arranged with elastic slice, and two elastic slices mutually resist, so that air-flow can only do one-way flow from sweep-up pipe bottom end to sweep-up pipe top It is dynamic；The rubber shell is sleeved on sweep-up pipe, and rubber shell side wall is equipped with No. two cavitys, and No. two cavitys and sweep-up pipe connect Logical, the inner sidewall of rubber shell is equipped with puff prot；The puff prot direction is biased at the center of rubber shell, and puff prot with No. two cavity connections；No. two cavitys are hinged with sealing plate by torsional spring on the end close to sweep-up pipe, and close to close Block is equipped at sealing plate, so that air-flow can only do one-way flow from sweep-up pipe to No. two cavitys；By cushion, rubber shell, more The dust under sofa is cleaned in the cooperation of hole carbon plate and sweep-up pipe；When work, when people are sitting on sofa, Ren Menhui Extruding is generated to No.1 cavity, sweep-up pipe is flowed to by tracheae after the gas compression in No.1 cavity, is generated due to gas Pressure is greater than the torsion of torsional spring, so that sealing plate compression is rotated around hinged place, and since two elastic slices mutually resist, can not occur to turn It is dynamic, so that gas enters in No. two cavitys, to be sprayed by puff prot, realizes for the dust of sofa bottom to be blown to and lean on At the center of nearly rubber shell, when people leave sofa, No.1 cavity restores under the elastic reaction of own material, from And suction is generated by sweep-up pipe, sealing plate can not rotate under the action of block at this time, then effect of the elastic slice in suction Lower opening, and by the dust sucking sweep-up pipe on ground, finally dust is adsorbed by porous carbon sheet again, is realized to sofa bottom The cleaning of portion's dust avoids the case where sofa bottom pushes away dust stratification dirt, improves the overall cleanliness factor in house.

Preferably, the side wall of the sweep-up pipe is equipped with opening；The lateral wall of the rubber shell is set close to opening There is coherent unit；The coherent unit includes wind wheel, adhesive tape and rotating wheel；The wind wheel is connected to rubber jar by holder pivots On the lateral wall of body, and a half vane of wind wheel protrudes into opening so that when have air-flow by sweep-up pipe and airflow direction be from When tracheae is to sweep-up pipe, wind wheel rotation can be blown；The rotating wheel is connected to the rubber symmetrical with wind wheel by holder pivots On the external side wall of rubber shell；The adhesive tape is through opening, and the adhesive face of adhesive tape is backwards to tracheae, so that adhesive tape is to passing through sweep-up pipe Bulky grain dust adhered to, and the unworn position of adhesive tape is wrapped on rotating wheel, and the used position of adhesive tape is wrapped in wind On wheel, when air-flow blows wind wheel rotation, rotating wheel rotation can be driven by wind wheel, to carry out the new and old replacement of adhesive tape； It is adhered to by the cooperation of wind wheel, adhesive tape and rotating wheel to by the bulky grain dust of sweep-up pipe, enhances the clean of sofa bottom Cleanliness；It when work, when encountering bulky grain dust, can not be adsorbed by porous carbon sheet, influence whether the whole clear of sofa bottom Clean effect, therefore coherent unit is being equipped with close to opening in the lateral wall of rubber shell, wherein adhesive tape can be to bulky grain ash Dirt carries out good adherency, in addition, air-flow can push away when being passed through air-flow in sweep-up pipe and airflow direction is from tracheae to sweep-up pipe Dynamic wind wheel rotation so that the adhesive tape for being adsorbed with dust is wrapped on wind wheel, and will be wrapped in being not used on rotating wheel Adhesive tape roll it is spare, realize the automatic new and old replacement of adhesive tape, to greatly improve the using effect of sofa, avoid it is artificial more The trouble for changing adhesive tape is brought greatly easy to the use process of sofa.

Preferably, it is symmetrically provided with sliding slot on the bottom end side wall of the rubber shell, and is connected by spring slide in sliding slot Be connected to sliding block, side wall of the sliding block close to ground is equipped with hairbrush, and two sliding blocks by cord respectively with wind wheel and rotating wheel Side wall far from the center of circle connects, so that wind wheel and rotating wheel pull sliding block during rotation and slidably reciprocate in sliding slot, thus Face carries out cleaning action to band electric brush over the ground；When work, when having air-flow by sweep-up pipe and airflow direction is from tracheae to dust suction Guan Shi, can blow wind wheel rotation, thus drive rotating wheel and then rotate, due to two sliding blocks by cord respectively with wind wheel and turn Driving wheel is connected far from the side wall in the center of circle, then pulls sliding block while wind wheel and rotating wheel are in rotation and slidably reciprocate in sliding slot, To which the hairbrush with movable slider bottom end cleans bottom surface with water, the dust suction range of sweep-up pipe is expanded, the use of sofa is enhanced Effect avoids dust in the accumulation of sofa bottom end, to reduce the number that people sweep sofa bottom end, has brought pole Big is easy, and substantially improves the environmental quality in house.

Preferably, No. three cavitys are equipped in the handrail；The rubber shell is being equipped with piston rod at sliding slot, and living Stopper rod is connected to by hose with No. three cavitys, so that after handrail is pressurized, in the gas transport to piston rod in No. three cavitys, from And jacked up rubber shell side wall using piston rod, expand the pick-up performance of cleaner unit；When work, when handrail is pressurized, three Gas in number cavity can be forced through hose and be transmitted in piston rod, and after being pressurized in piston rod, piston rod carries out flexible fortune It is dynamic, when piston rod is extended to elongation is further continued for after ground face contact, rubber shell side wall is jacked up, to expand puff prot Jet range further increases the pick-up performance of cleaner unit, improves the cleanliness of sofa bottom, reduces people and sweeps sofa bottom The number at end brings great convenience to the user of sofa, saves manpower and material resources appropriate.

Preferably, the tracheae is equipped with filter screen in the end close to sweep-up pipe, effectively prevent dust by tracheae sucking one It is accumulated after number cavity, to influence the using effect of sofa；When work, when people leave sofa, No.1 cavity exists Restore under the elastic reaction of own material, to generate suction by sweep-up pipe, sealing plate is under the action of block at this time It can not rotate, then elastic slice is opened under the action of suction, and the dust on ground is sucked in sweep-up pipe, finally again by more Hole carbon plate adsorbs dust, and during dust is inhaled into sweep-up pipe, the dust for having part is directly sucked by tracheae, therefore Tracheae is equipped with filter screen in the end close to sweep-up pipe, to push away in No.1 cavity after effectively dust being avoided to be sucked by tracheae Product improves the service life and using effect of sofa, reduces the time inside user's cleaning sofa and number, enhances sand The practicability and using effect of hair.

Preferably, the material of the sweep-up pipe is superfine fibre, can be adsorbed to the dust in sweep-up pipe, to increase The adsorption effect of strong cleaner unit；When work, when the dust of sofa bottom is more, when dust is inhaled into sweep-up pipe, ash When dirt can not be adsorbed by porous carbon sheet completely, dust can fall to ground again, to reduce the efficiency adsorbed to dust, work as suction When the material of dirt pipe is superfine fibre, the side wall of sweep-up pipe also can generate adsorption capacity to dust, to enhance the suction of sweep-up pipe Attached effect improves the adsorption range and adsorption effect of sweep-up pipe, enhances the using effect of sofa, improves the clean of sofa bottom Cleanliness.

Beneficial effects of the present invention are as follows:

1. a kind of sofa of the present invention, by the cooperation of cushion, rubber shell, porous carbon sheet and sweep-up pipe to sofa Beneath dust is cleaned, and the cleaning to sofa bottom dust is realized, and is avoided the case where sofa bottom pushes away dust stratification dirt, is mentioned The overall cleanliness factor in high house.

2. a kind of sofa of the present invention, by the cooperation of wind wheel, adhesive tape and rotating wheel to by big of sweep-up pipe Grain dust is adhered to, and is enhanced the cleanliness of sofa bottom, the automatic new and old replacement of adhesive tape is realized, to greatly improve sofa Using effect, avoid manually replace adhesive tape trouble.

Detailed description of the invention

The present invention will be further explained below with reference to the attached drawings.

Fig. 1 is perspective view of the invention；

Fig. 2 is cross-sectional view of the invention；

Fig. 3 is the connection schematic diagram of rubber shell and sweep-up pipe in the present invention；

Fig. 4 is partial enlarged view at A in Fig. 3；

Fig. 5 is partial enlarged view at B in Fig. 3；

In figure: backrest 1, cushion 2, No.1 cavity 21,3, No. three cavitys 31 of handrail, cleaner unit 4, rubber shell 41, two Number cavity 411, puff prot 412, sealing plate 413, block 414, sliding slot 415, sliding block 416, hairbrush 417, piston rod 418, dust suction Pipe 42, elastic slice 422, opening 423, tracheae 43, filter screen 431, coherent unit 5, wind wheel 51, adhesive tape 52, turns porous carbon sheet 421 Driving wheel 53.

Specific embodiment

In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Specific embodiment is closed, the present invention is further explained.

As shown in Figures 1 to 5, a kind of sofa of the present invention, including backrest 1, cushion 2, handrail 3 and cleaner unit 4； The backrest 1 is mounted on cushion 2；The handrail 3 is mounted on cushion 2, and is contacted simultaneously with backrest 1；It is opened in the cushion 2 There is No.1 cavity 21；The cleaner unit 4 is mounted on 2 bottom end of cushion, and cleaner unit 4 includes rubber shell 41 and sweep-up pipe 42； 42 top of sweep-up pipe is connected to by tracheae 43 with No.1 cavity 21, and is equipped with porous carbon sheet 421 on 42 top of sweep-up pipe, is inhaled 42 bottom end of dirt pipe is symmetrically arranged with elastic slice 422, and two elastic slices 422 mutually resist, so that air-flow can only be from 42 bottom end of sweep-up pipe to suction Do one-way flow in 42 top of dirt pipe；The rubber shell 41 is sleeved on sweep-up pipe 42, and 41 side wall of rubber shell is equipped with No. two Cavity 411, and No. two cavitys 411 are connected to sweep-up pipe 42, the inner sidewall of rubber shell 41 is equipped with puff prot 412；The spray 412 direction of port is biased at the center of rubber shell 41, and puff prot 412 is connected to No. two cavitys 411；No. two cavitys 411 are hinged with sealing plate 413 by torsional spring on the end close to sweep-up pipe 42, and block is being equipped at sealing plate 413 414, so that air-flow can only do one-way flow from sweep-up pipe 42 to No. two cavitys 411；Pass through cushion 2, rubber shell 41, porous carbon The dust under sofa is cleaned in the cooperation of plate 421 and sweep-up pipe 42；When work, when people are sitting on sofa, people Extruding can be generated to No.1 cavity 21, the gas in No.1 cavity 21 passes through tracheae 43 after being pressurized and flows to sweep-up pipe 42, due to The pressure that gas generates is greater than the torsion of torsional spring, so that the compression of sealing plate 413 is rotated around hinged place, and due to two elastic slices, 422 phase It mutually resists, can not rotate, so that gas enters in No. two cavitys 411, to be sprayed by puff prot 412, realize The dust of sofa bottom is blown at the center of rubber shell 41, when people leave sofa, No.1 cavity 21 from Restore under the elastic reaction of stature material, to generate suction by sweep-up pipe 42, sealing plate 413 is in block 414 at this time It can not rotate under effect, then elastic slice 422 is opened under the action of suction, and the dust on ground is sucked sweep-up pipe 42 It is interior, finally dust is adsorbed by porous carbon sheet 421 again, realizes the cleaning to sofa bottom dust, sofa bottom is avoided and pushes away The case where dust stratification dirt, improves the overall cleanliness factor in house.

As one embodiment of the present invention, the side wall of the sweep-up pipe 42 is equipped with opening 423；The rubber shell 41 lateral wall is being equipped with coherent unit 5 at opening 423；The coherent unit 5 includes wind wheel 51, adhesive tape 52 and rotating wheel 53；The wind wheel 51 is connected on the lateral wall of rubber shell 41 by holder pivots, and a half vane of wind wheel 51 protrudes into out In mouth 423, so that wind wheel can be blown when there is air-flow by sweep-up pipe 42 and airflow direction for from tracheae 43 to sweep-up pipe 42 51 rotations；The rotating wheel 53 is connected on 41 lateral wall of rubber shell symmetrical with wind wheel 51 by holder pivots；It is described Adhesive tape 52 is through opening 423, and the adhesive face of adhesive tape 52 is backwards to tracheae 43, so that 52 couples of adhesive tape big by sweep-up pipe 42 Grain dust is adhered to, and the unworn position of adhesive tape 52 is wrapped on rotating wheel 53, and the used position of adhesive tape 52 is wrapped in wind On wheel 51, when air-flow, which blows wind wheel 51, to be rotated, rotating wheel 53 can be driven to rotate by wind wheel 51, to carry out adhesive tape 52 New and old replacement；It is adhered to by the cooperation of wind wheel 51, adhesive tape 52 and rotating wheel 53 to by the bulky grain dust of sweep-up pipe 42, Enhance the cleanliness of sofa bottom；When work, when encountering bulky grain dust, it can not be adsorbed, will affect by porous carbon sheet 421 Coherent unit is being equipped at opening 423 to the whole cleaning effect of sofa bottom, therefore in the lateral wall of rubber shell 41 5, wherein adhesive tape 52 can carry out good adherency to bulky grain dust, in addition, when being passed through air-flow and air-flow side in sweep-up pipe 42 When Xiang Weicong tracheae 43 arrives sweep-up pipe 42, air-flow will push the rotation of wind wheel 51, so that the adhesive tape 52 for being adsorbed with dust be twined It is wound on wind wheel 51, and the not used adhesive tape 52 being wrapped on rotating wheel 53 is rolled out spare, realize the automatic of adhesive tape 52 New and old replacement avoids the trouble for manually replacing adhesive tape 52, to the use process of sofa to greatly improve the using effect of sofa It brings greatly easy.

As one embodiment of the present invention, sliding slot 415 is symmetrically provided on the bottom end side wall of the rubber shell 41, and Sliding block 416 is connected with by spring slide in sliding slot 415, side wall of the sliding block 416 close to ground is equipped with hairbrush 417, And two sliding block 416 connect with wind wheel 51 and rotating wheel 53 far from the side wall in the center of circle respectively by cord so that wind wheel 51 and rotating Wheel 53 pulls sliding block 416 during rotation and slidably reciprocates in sliding slot 415, to clean with electric brush 417 to ground Effect；When work, when there is air-flow by sweep-up pipe 42 and airflow direction for from tracheae 43 to sweep-up pipe 42, wind wheel can be blown 51 rotations, to drive rotating wheel 53 and then to rotate, since two sliding blocks 416 are remote with wind wheel 51 and rotating wheel 53 respectively by cord Side wall connection from the center of circle is then pullled sliding block 416 while wind wheel 51 and rotating wheel 53 are in rotation and is slided back and forth in sliding slot 415 It is dynamic, so that the hairbrush 417 with 416 bottom end of movable slider cleans bottom surface with water, the dust suction range of sweep-up pipe 42 is expanded, is enhanced The using effect of sofa avoids dust in the accumulation of sofa bottom end, to reduce the number that people sweep sofa bottom end, gives people Bring greatly easy, and substantially improve the environmental quality in house.

As one embodiment of the present invention, No. three cavitys 31 are equipped in the handrail 3；The rubber shell 41 is leaning on Piston rod 418 is equipped at nearly sliding slot 415, and piston rod 418 is connected to by hose with No. three cavitys 31, so that when handrail 3 is pressurized Afterwards, in the gas transport to piston rod 418 in No. three cavitys 31, thus jacked up 41 side wall of rubber shell using piston rod 418, Expand the pick-up performance of cleaner unit 4；When work, when handrail 3 is pressurized, the gas in No. three cavitys 31 can be forced through hose Be transmitted in piston rod 418, when in piston rod 418 be pressurized after, piston rod 418 carry out stretching motion, when piston rod 418 extend to When being further continued for elongation after ground face contact, 41 side wall of rubber shell is jacked up, so that the jet range of puff prot 412 is expanded, into One step improves the pick-up performance of cleaner unit 4, improves the cleanliness of sofa bottom, reduces the number that people sweep sofa bottom end, Great convenience is brought to the user of sofa, saves manpower and material resources appropriate.

As one embodiment of the present invention, the tracheae 43 is equipped with filter screen 431 in the end close to sweep-up pipe 42, It is accumulated after effectivelying prevent dust to suck No.1 cavity 21 by tracheae 43, to influence the using effect of sofa；When work, When people leave sofa, No.1 cavity 21 restores under the elastic reaction of own material, to be produced by sweep-up pipe 42 Raw suction, sealing plate 413 can not rotate under the action of block 414 at this time, then elastic slice 422 is beaten under the action of suction It opens, and by the dust sucking sweep-up pipe 42 on ground, finally dust is adsorbed by porous carbon sheet 421 again, is inhaled into dust During sweep-up pipe 42, the dust for having part is directly sucked by tracheae 43, therefore tracheae 43 is at the end close to sweep-up pipe 42 Portion is equipped with filter screen 431, to push away product in No.1 cavity 21 after effectively avoiding dust from being sucked by tracheae 43, improves sofa Service life and using effect reduce the time inside user's cleaning sofa and number, enhance the practicability of sofa and make Use effect.

As one embodiment of the present invention, the material of the sweep-up pipe 42 is superfine fibre, can be to sweep-up pipe 42 Interior dust is adsorbed, to enhance the adsorption effect of cleaner unit 4；When work, when the dust of sofa bottom is more, In When dust is inhaled into sweep-up pipe 42, when dust can not be adsorbed by porous carbon sheet 421 completely, dust can fall to ground again, To reduce the efficiency adsorbed to dust, when the material of sweep-up pipe 42 is superfine fibre, the side wall of sweep-up pipe 42 also can be to ash Dirt generates adsorption capacity, to enhance the adsorption effect of sweep-up pipe 42, improves the adsorption range and adsorption effect of sweep-up pipe 42, increases The strong using effect of sofa, improves the cleanliness of sofa bottom.

When work, when people are sitting on sofa, people can generate extruding, the gas in No.1 cavity 21 to No.1 cavity 21 Body passes through tracheae 43 after being pressurized and flows to sweep-up pipe 42, since the pressure that gas generates is greater than the torsion of torsional spring, so that sealing plate 413 are pressurized rotates around hinged place, and since two elastic slices 422 mutually resist, can not rotate, so that gas enters No. two In cavity 411, to be sprayed by puff prot 412, realizes and the dust of sofa bottom is blown in rubber shell 41 At the heart, when people leave sofa, No.1 cavity 21 restores under the elastic reaction of own material, to pass through sweep-up pipe 42 generate suction, and sealing plate 413 can not rotate under the action of block 414 at this time, then elastic slice 422 is under the action of suction It opens, and by the dust sucking sweep-up pipe 42 on ground, finally dust is adsorbed by porous carbon sheet 421 again, is realized to sand The cleaning for sending out bottom dust, avoids the case where sofa bottom pushes away dust stratification dirt, improves the overall cleanliness factor in house；When encountering big When grain dust, it can not be adsorbed by porous carbon sheet 421, influence whether the whole cleaning effect of sofa bottom, therefore in rubber jar The lateral wall of body 41 is being equipped with coherent unit 5 at opening 423, wherein adhesive tape 52 can carry out bulky grain dust good Adherency, in addition, air-flow will push wind when being passed through air-flow and airflow direction in sweep-up pipe 42 is from tracheae 43 to sweep-up pipe 42 51 rotation of wheel, so that the adhesive tape 52 for being adsorbed with dust is wrapped on wind wheel 51, and will be wrapped on rotating wheel 53 not The adhesive tape 52 used rolls out spare, and the automatic new and old replacement for realizing adhesive tape 52 is kept away to greatly improve the using effect of sofa Manpower-free replaces the trouble of adhesive tape 52, brings to the use process of sofa greatly easy；When there is air-flow by sweep-up pipe 42 and When airflow direction is from tracheae 43 to sweep-up pipe 42, the rotation of wind wheel 51 can be blown, so that rotating wheel 53 is driven and then to rotate, by It is connect respectively with wind wheel 51 and rotating wheel 53 far from the side wall in the center of circle in two sliding blocks 416 by cord, then in wind wheel 51 and rotation Wheel 53 pulls sliding block 416 while rotation and slidably reciprocates in sliding slot 415, so that the hairbrush 417 with 416 bottom end of movable slider is right Bottom surface is cleaned with water, is expanded the dust suction range of sweep-up pipe 42, is enhanced the using effect of sofa, avoids dust at sofa bottom The accumulation at end has brought great easy to reduce the number that people sweep sofa bottom end, and substantially improves Environmental quality in house；When handrail 3 is pressurized, the gas in No. three cavitys 31 can be forced through hose and be transmitted to piston rod In 418, after being pressurized in piston rod 418, piston rod 418 carries out stretching motion, after piston rod 418 is extended to ground face contact again When continuing elongation, 41 side wall of rubber shell is jacked up, to expand the jet range of puff prot 412, further increases dust suction The pick-up performance of unit 4 improves the cleanliness of sofa bottom, reduces the number that people sweep sofa bottom end, to the use of sofa Person brings great convenience, saves manpower and material resources appropriate；When people leave sofa, No.1 cavity 21 is in own material Restore under elastic reaction, to generate suction, at this time nothing under the action of block 414 of sealing plate 413 by sweep-up pipe 42 Method rotates, then elastic slice 422 is opened under the action of suction, and the dust on ground is sucked in sweep-up pipe 42, finally again Dust is adsorbed by porous carbon sheet 421, during dust is inhaled into sweep-up pipe 42, has the dust of part directly by tracheae 43 suckings, therefore tracheae 43 is equipped with filter screen 431 in the end close to sweep-up pipe 42, so that dust effectively be avoided to be inhaled by tracheae 43 Product is pushed away in No.1 cavity 21 after entering, improves the service life and using effect of sofa, reduces user and cleans inside sofa Time and number, enhance the practicability and using effect of sofa；When the dust of sofa bottom is more, it is inhaled into dust When in sweep-up pipe 42, when dust can not be adsorbed by porous carbon sheet 421 completely, dust can fall to ground again, thus reduction pair The efficiency of dust absorption, when the material of sweep-up pipe 42 is superfine fibre, the side wall of sweep-up pipe 42 also can generate absorption to dust Power improves the adsorption range and adsorption effect of sweep-up pipe 42, enhances sofa to enhance the adsorption effect of sweep-up pipe 42 Using effect improves the cleanliness of sofa bottom.

The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle It is fixed.