阅读说明：本技术 一种家用木制沙发 (Household wooden sofa ) 是由 不公告发明人 于 2019-10-11 设计创作，主要内容包括：本发明属于家具技术领域,具体的说是一种家用木制沙发,包括底板,底板四角均设有椅腿,椅腿顶部设有一对扶手；底板后部设有倾斜的靠背,底板顶部设有弹性的坐垫；椅腿底部设有圆柱形的气囊,气囊圆周侧面壁厚大于上下两端的壁厚；气囊底部固连有柱状的防滑柱；本发明气囊受到椅腿的压力之后变形,气囊被压缩后气囊侧壁与地面接触,增大了沙发与地面的接触面积,提高的沙发的稳定性；当沙发上不坐人时,气囊恢复原状,进而抬高底板距离地面的高度,从而方便打扫沙发底部的地面,减少沙发受白蚁啃食的概率。(The invention belongs to the technical field of furniture, and particularly relates to a household wooden sofa which comprises a bottom plate, wherein chair legs are arranged at four corners of the bottom plate, and a pair of armrests are arranged at the tops of the chair legs; the rear part of the bottom plate is provided with an inclined backrest, and the top of the bottom plate is provided with an elastic cushion; the bottom of the chair leg is provided with a cylindrical air bag, and the wall thickness of the circumferential side surface of the air bag is greater than the wall thickness of the upper end and the lower end; the bottom of the air bag is fixedly connected with a columnar anti-slip column; the air bag deforms under the pressure of the chair legs, the side wall of the air bag is in contact with the ground after the air bag is compressed, the contact area of the sofa and the ground is increased, and the stability of the sofa is improved; when the sofa is not used for sitting, the air bag is restored to the original state, and then the height of the bottom plate from the ground is raised, so that the ground at the bottom of the sofa is conveniently cleaned, and the probability that the sofa is bitten by termites is reduced.)

1. A household wooden sofa comprises a bottom plate (1), wherein chair legs (11) are arranged at four corners of the bottom plate (1), and a pair of armrests (12) are arranged at the tops of the chair legs (11); an inclined backrest (13) is arranged at the rear part of the bottom plate (1), and an elastic cushion (14) is arranged at the top of the bottom plate (1); the method is characterized in that: the bottom of each chair leg (11) is provided with a cylindrical air bag (2), and the wall thickness of the circumferential side surface of each air bag (2) is greater than that of the upper end and the lower end; the bottom of the air bag (2) is fixedly connected with a columnar anti-skid column (15); when the sofa is pressed, the anti-slip columns (15) are sunken in the air bags (2), the side faces of the air bags (2) are in contact with the ground, the stability of the sofa is improved, and when the sofa is not pressed, the distance between the bottom plate (1) and the ground is increased, so that the bottom of the sofa is convenient to clean.

2. A domestic wooden sofa as claimed in claim 1, wherein: a steel cup (21) with an opening at one end is embedded in the air bag (2), the opening of the steel cup (21) faces downwards, and a curled edge (22) is arranged at the edge of the opening; the bearing capacity of the air bag (2) is further improved through the inlaid steel cup (21), the service life of the air bag (2) is prolonged, and the stability of the sofa is improved.

3. A domestic wooden sofa as claimed in claim 2, wherein: a group of air cylinders (23) are uniformly distributed on the inner circumference of the side wall of the air bag (2), and the air cylinders (23) are filled with an ant preventing agent and compressed air; a bottle stopper (25) is arranged in a spray pipe (24) of the gas bottle (23), and the bottle stopper (25) is used for releasing the termite-proof agent after being corroded by formic acid; the air bag (2) is provided with a spray hole (26) at a position corresponding to the spray pipe (24), and the spray hole (26) is communicated with the spray pipe (24); the gas cylinder (23) is opened by formic acid secreted when the termites gnaw the gas bag, and the termiticide is sprayed to kill the termites, so that the wooden sofa is guaranteed not to be damaged.

4. A domestic wooden sofa as claimed in claim 3, wherein: the spray pipe (24) of the gas cylinder (23) is downward, and the body of the gas cylinder (23) is arranged in the upward inclined direction, so that the termite-proof agent in the gas cylinder (23) is completely sprayed out, the killing effect of the termites is further improved, and the damage of the termites to the wooden sofa is further reduced.

5. A domestic wooden sofa as claimed in claim 3, wherein: a sponge plug (27) is arranged at one end of the spray hole (26) close to the outer side of the air bag (2), and the sponge plug (27) is used for storing part of the termite-proof agent and prolonging the duration time of the termite-proof agent; spherical cavity (28) have been seted up in gasbag (2) of the one end that sponge stopper (27) are kept away from in orifice (26), spherical cavity (28) and orifice (26) intercommunication, and the compressed gas that produces when being extruded through spherical cavity (28) spouts through sponge stopper (27), further increases the volatilization effect of anti-termite agent, prolongs anti-termite agent's action time to further the termite destroys wooden sofa.

6. A domestic wooden sofa as claimed in claim 5, wherein: a circular truncated cone (3) is arranged between the air bag (2) and the chair legs (11), and the top of the circular truncated cone (3) is fixedly connected with the chair legs (11); the bottom of the circular truncated cone (3) is provided with a sliding hole (31), a sliding column (32) is connected in the sliding hole (31) in a sliding and sealing mode, and one end, extending out of the sliding hole (31), of the sliding column (32) is fixedly connected with the air bag (2); a group of air-bleeding micropores (33) with the diameter of 0.1mm are uniformly formed in the circumference of the side wall of the sliding hole (31) close to the bottom, and the air-bleeding micropores (33) are used for releasing air at the bottom of the sliding hole (31) so as to reduce the height of the sofa; one end of the air release micropore (33) close to the inner wall of the sliding hole (31) is inclined upwards; an elastic bag (16) is arranged in the seat cushion (14), and the elastic bag (16) is communicated with the sliding hole (31) and the air bag (2) through a pipeline and a one-way valve; compressed air generated by the compression of the elastic bag (16) is filled into the bottom of the sliding hole (31), so that the height of the bottom plate (1) from the ground is further increased, and the sanitation of the bottom of the sofa is further convenient to clean.

Technical Field

The invention belongs to the technical field of furniture, and particularly relates to a household wooden sofa.

Background

A sofa, which is a multi-seat chair with cushions. The back-rest chair with spring or thick foamed plastic has armrests on two sides and is one kind of soft furniture.

The wooden sofa has the advantages of beautiful shape, elegance and elegance, rigorous structure, fine workmanship, excellent texture, hardness, durability and the like. Along with the improvement of living standard of people, most families have more and more preference to wooden sofas when selecting the sofas, and particularly the rosewood sofa with value-keeping value-added performance integrated with practicability, appreciation and value-keeping is more and more popular among people.

The existing wooden sofa is high in value and is easy to be bitten by termites when being used in areas with more termites, so that the painted surface is peeled off, the structure is damaged seriously, and the like, and serious economic loss is caused.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that the prior wooden sofa is easy to be bitten by termites when being used in areas with more termites due to higher value, so that the painted surface is peeled off, the structure is damaged, and the like, and the serious economic loss is caused.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention discloses a household wooden sofa, which comprises a bottom plate, wherein chair legs are arranged at four corners of the bottom plate, and a pair of armrests are arranged at the tops of the chair legs; the rear part of the bottom plate is provided with an inclined backrest, and the top of the bottom plate is provided with an elastic cushion; the bottom of the chair leg is provided with a cylindrical air bag, and the wall thickness of the circumferential side surface of the air bag is greater than the wall thickness of the upper end and the lower end; the bottom of the air bag is fixedly connected with a columnar anti-slip column; when the sofa is pressed, the anti-slip columns are sunken into the air bags, the side faces of the air bags are in contact with the ground, the stability of the sofa is improved, and when the sofa is not pressed, the distance between the bottom plate and the ground is increased, so that the bottom of the sofa is conveniently cleaned; when the sofa is in work, the air bag is of a hollow structure, when a person sits on the cushion of the sofa, the air bag deforms under the pressure of the chair legs, so that the anti-skid columns are recessed towards the inside of the air bag, at the moment, the bottom of the air bag deforms greatly because the wall thickness of the circumferential side face of the air bag is larger than the wall thicknesses of the upper end and the lower end of the air bag, when the air bag is compressed, the side wall of the air bag is in contact with the ground, the contact area between the sofa and the ground is; when the sofa is not used for sitting, the air bag is restored to the original state, and then the height of the bottom plate from the ground is raised, so that the ground at the bottom of the sofa is conveniently cleaned, food scraps and other residues are prevented from being remained on the ground at the bottom of the sofa, termites and other insects are attracted to stay, and the probability that the sofa is bitten by the termites is reduced.

Preferably, a steel cup with an opening at one end is embedded in the air bag, the opening of the steel cup faces downwards, and a curled edge is arranged at the edge of the opening; the bearing capacity of the air bag is further improved through the embedded steel cup, the service life of the air bag is prolonged, and the stability of the sofa is improved; through the inlayed steel cup in the gasbag, further improved the bearing capacity of gasbag, the turn-up that steel cup opening edge set up simultaneously can reduce the oppression of steel cup to the gasbag, prevents to cause the gasbag fracture after the gasbag excessively warp, reduces the life of gasbag.

Preferably, a group of air cylinders are uniformly distributed on the inner circumference of the side wall of the air bag, and the air cylinders are filled with the termiticide and compressed air; a bottle stopper is arranged in a spray pipe of the gas cylinder, and the bottle stopper is used for releasing the anti-termite agent after being corroded by formic acid; the air bag is provided with a spray hole at a position corresponding to the spray pipe, and the spray hole is communicated with the spray pipe; the gas cylinder is opened by formic acid secreted when the termites bite the gas bag, and the termiticide is sprayed to kill the termites, so that the wooden sofa is guaranteed not to be damaged; when termites climb to the outer wall of the air bag to bite the air bag, the formic acid secreted by the termites flows to the position of the bottle plug from the spray hole, the bottle plug is corroded by the formic acid and then is broken, the termiteproof agent in the air bottle is pushed by compressed air to be sprayed out through the spray pipe and the spray hole, the termites are killed and repelled, the termites are prevented from continuously climbing upwards along the air bag and the chair legs and biting the wooden sofa, and the damage of the termites to the wooden sofa is further reduced.

Preferably, the spray pipe of the gas cylinder faces downwards, and the body of the gas cylinder is arranged in an inclined and upward direction, so that the termite-proof agent in the gas cylinder is completely sprayed out, the killing effect of the termites is further improved, and the damage of the termites to the wooden sofa is further reduced; through the spray tube down, the gas cylinder that upwards arranges of body slope for the anti-termite agent in the gas cylinder is in bottleneck department, and anti-termite agent spouts completely fast under compressed gas's promotion when making the bottle plug open the gas cylinder after receiving the corruption, makes the spun dose of anti-termite agent enough exterminate the termite, further improves exterminating and the expulsion effect of termite, further reduces the termite and destroys wooden sofa.

Preferably, a sponge plug is arranged at one end of the spray hole close to the outer side of the air bag, and the sponge plug is used for storing part of the termite-proof agent and prolonging the duration time of the termite-proof agent; a spherical cavity is formed in the air bag at one end, far away from the sponge plug, of the spray hole and is communicated with the spray hole, and compressed gas generated when the spherical cavity is extruded is sprayed out through the sponge plug, so that the volatilization effect of the termite-proof agent is further improved, the action time of the termite-proof agent is prolonged, and thus the termites can further damage the wooden sofa; a part of the termite-proof agent can be stored through the sponge plug, so that the action time of the termite-proof agent is prolonged, and the control time of the termites is further prolonged; meanwhile, compressed gas generated when the spherical cavity in the air bag is continuously extruded is sprayed out through the sponge plug, so that the air flow of the sponge plug is increased, and the volatilization effect of the termite-proof agent is further increased, so that the damage of termites to the wooden sofa is further reduced.

Preferably, a circular truncated cone is arranged between the air bag and the chair legs, and the top of the circular truncated cone is fixedly connected with the chair legs; the bottom of the circular truncated cone is provided with a sliding hole, a sliding column is connected in the sliding hole in a sliding and sealing mode, and one end, extending out of the sliding hole, of the sliding column is fixedly connected with the air bag; a group of air-bleeding micropores with the diameter of 0.1mm are uniformly formed in the circumference of the side wall of the sliding hole, close to the bottom of the sliding hole, and used for releasing air at the bottom of the sliding hole so as to reduce the height of the sofa; one end of the air release micropore close to the inner wall of the sliding hole is inclined upwards; the cushion is internally provided with an elastic bag which is communicated with the sliding hole and the air bag through a pipeline and a one-way valve; compressed air generated by the compression of the elastic bag is filled into the bottom of the sliding hole, so that the height of the bottom plate from the ground is further increased, and the sanitation of the bottom of the sofa is further convenient to clean; when a person sits on the seat cushion, the elastic bag in the seat cushion is pressed to generate compressed gas, the compressed gas is filled into the sliding hole through the pipeline and the one-way valve, so that the sliding hole is filled with the compressed gas, when the person leaves the seat cushion, the compressed gas in the sliding hole pushes the sliding column outwards, the distance between the bottom plate and the ground is further increased, the sanitation of the ground at the bottom of the sofa is convenient to clean, the aggregation of termites is reduced, and the damage of the termites to the wooden sofa is further reduced; when the sliding column slides to a position below the air release micropore in the sliding hole, compressed air in the sliding hole is slowly discharged through the air release micropore, so that the sofa automatically reduces the height after the ground at the bottom of the sofa is cleaned hygienically, and the sofa keeps a proper initial height, thereby being convenient to sit; meanwhile, one end of the air discharging micropore close to the inner wall of the sliding hole is inclined upwards, so that air sprayed out of the air discharging micropore flows downwards in an inclined mode and then is sprayed to the top of the air bag, dust accumulation on the top of the air bag is reduced, and the sofa is kept clean.

The invention has the following beneficial effects:

1. according to the household wooden sofa, the air bag deforms under the pressure of the chair legs, the side wall of the air bag is in contact with the ground after the air bag is compressed, the contact area of the sofa and the ground is increased, and the stability of the sofa is improved; when the sofa is not used for sitting, the air bag is restored to the original state, and then the height of the bottom plate from the ground is raised, so that the ground at the bottom of the sofa is conveniently cleaned, food scraps and other residues are prevented from being remained on the ground at the bottom of the sofa, termites and other insects are attracted to stay, and the probability that the sofa is bitten by the termites is reduced.

2. According to the household wooden sofa, the bearing capacity of the air bag is further improved through the steel cup embedded in the air bag, meanwhile, the edge of the opening of the steel cup is provided with the curled edge, so that the compression of the steel cup on the air bag can be reduced, the air bag is prevented from cracking after the air bag is excessively deformed, and the service life of the air bag is shortened.

Drawings

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

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

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

in the figure: the chair comprises a bottom plate 1, chair legs 11, armrests 12, a backrest 13, a seat cushion 14, an air bag 2, an anti-slip column 15, a steel cup 21, a curled edge 22, an air bottle 23, a spray pipe 24, a bottle plug 25, a spray hole 26, a sponge plug 27, a spherical cavity 28, a circular truncated cone 3, a slide hole 31, a slide column 32, a deflation micropore 33 and an elastic bag 16.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, the household wooden sofa of the invention comprises a bottom plate 1, wherein four corners of the bottom plate 1 are provided with chair legs 11, and the top of each chair leg 11 is provided with a pair of armrests 12; an inclined backrest 13 is arranged at the rear part of the bottom plate 1, and an elastic cushion 14 is arranged at the top part of the bottom plate 1; the bottom of the chair leg 11 is provided with a cylindrical air bag 2, and the wall thickness of the circumferential side surface of the air bag 2 is greater than the wall thickness of the upper end and the lower end; the bottom of the air bag 2 is fixedly connected with a columnar anti-skid column 15; when the sofa is pressed, the anti-slip columns 15 are sunken into the air bags 2, the side faces of the air bags 2 are in contact with the ground, so that the stability of the sofa is improved, and when the sofa is not pressed, the distance between the bottom plate 1 and the ground is increased, so that the bottom of the sofa is conveniently cleaned; when the sofa is in work, the air bag 2 is of a hollow structure, when a person sits on the cushion 14 of the sofa, the air bag 2 deforms under the pressure of the chair legs 11, so that the anti-skid columns 15 are sunken towards the inside of the air bag 2, at the moment, the bottom of the air bag 2 deforms greatly because the wall thickness of the circumferential side surface of the air bag 2 is larger than the wall thicknesses of the upper end and the lower end, and after the air bag 2 is compressed, the side wall of the air bag 2 is in contact with the ground, so that the contact area between the sofa and the ground is increased; when the sofa is not used for sitting, the air bag 2 is restored to the original state, and then the height of the bottom plate 1 from the ground is raised, so that the ground at the bottom of the sofa is conveniently cleaned, food scraps and other residues are prevented from being remained on the ground at the bottom of the sofa, termites and other insects are attracted to stay, and the probability that the sofa is bitten by the termites is reduced.

As an embodiment of the invention, a steel cup 21 with an opening at one end is embedded in the airbag 2, the opening of the steel cup 21 faces downwards, and a curled edge 22 is arranged at the edge of the opening; the bearing capacity of the air bag 2 is further improved through the inlaid steel cup 21, the service life of the air bag 2 is prolonged, and the stability of the sofa is improved; through the inlayed steel cup 21 in the gasbag 2, further improved the bearing capacity of gasbag 2, the turn-up 22 that the edge of steel cup 21 opening set up simultaneously can reduce steel cup 21 to gasbag 2's oppression, prevents to cause gasbag 2 after 2 excessive deformations to split, reduces gasbag 2's life.

As an embodiment of the invention, a group of air cylinders 23 are uniformly distributed on the inner circumference of the side wall of the air bag 2, and the air cylinders 23 are filled with the termiticide and compressed air; a bottle stopper 25 is arranged in a spray pipe 24 of the gas bottle 23, and the bottle stopper 25 is used for releasing the anti-termite agent after being corroded by formic acid; the air bag 2 is provided with a jet hole 26 at a position corresponding to the jet pipe 24, and the jet hole 26 is communicated with the jet pipe 24; the gas cylinder 23 is opened by formic acid secreted when the termites bite the gas bag, and the termiticide is sprayed to kill the termites, so that the wooden sofa is guaranteed not to be damaged; when termites climb to the outer wall of the air bag 2 to bite the air bag 2, the formic acid secreted by the termites flows to the position of the bottle plug 25 from the spray hole 26, the bottle plug 25 is corroded by the formic acid and then is broken, the termiticide in the air bottle 23 is pushed by the compressed air to be sprayed out through the spray pipe 24 and the spray hole 26, the termites are further killed and repelled, the termites are prevented from continuously climbing upwards along the air bag 2 and the chair legs 11 and biting the wooden sofa, and the phenomenon that the termites damage the wooden sofa is further reduced.

As an embodiment of the present invention, the nozzle 24 of the gas cylinder 23 faces downward, and the body of the gas cylinder 23 is arranged in an upward inclined direction, so that the termite-proofing agent in the gas cylinder 23 is completely sprayed out, and the killing effect of the termites is further increased, thereby further reducing the damage of the termites to the wooden sofa; through spray tube 24 down, the gas cylinder 23 that upwards arranges of body slope for the anti-termite agent in the gas cylinder 23 is in bottleneck department, and anti-termite agent spouts completely fast under compressed gas's promotion when making the bottle plug 25 open the gas cylinder 23 after receiving the corruption, makes the dose of spun anti-termite agent enough exterminate the termite, further improves exterminating and the expulsion effect of termite, further reduces the termite and destroys wooden sofa.

As an embodiment of the present invention, a sponge plug 27 is disposed at one end of the nozzle hole 26 close to the outer side of the airbag 2, and the sponge plug 27 is used for storing part of the anti-termiticide so as to prolong the duration of the anti-termiticide; a spherical cavity 28 is formed in the air bag 2 at one end of the spray hole 26, which is far away from the sponge plug 27, the spherical cavity 28 is communicated with the spray hole 26, and compressed gas generated when the spherical cavity 28 is extruded is sprayed out through the sponge plug 27, so that the volatilization effect of the anti-termite agent is further increased, the action time of the anti-termite agent is prolonged, and further the termites damage the wooden sofa; a part of the termite-proof agent can be stored through the sponge plug 27, the action time of the termite-proof agent is prolonged, and the termite control time is further prolonged; meanwhile, when the spherical cavity 28 in the air bag 2 is continuously extruded, the generated compressed gas is sprayed out through the sponge plug 27, so that the air flow of the sponge plug 27 is increased, the volatilization effect of the termite-proof agent is further increased, and the damage of termites to the wooden sofa is further reduced.

As an embodiment of the invention, a circular truncated cone 3 is arranged between the airbag 2 and the chair leg 11, and the top of the circular truncated cone 3 is fixedly connected with the chair leg 11; the bottom of the circular truncated cone 3 is provided with a slide hole 31, a slide column 32 is connected in the slide hole 31 in a sliding and sealing manner, and one end, extending out of the slide hole 31, of the slide column 32 is fixedly connected with the air bag 2; a group of air-bleeding micropores 33 with the diameter of 0.1mm are uniformly formed in the circumference of the side wall of the sliding hole 31 close to the bottom, and the air-bleeding micropores 33 are used for releasing air at the bottom of the sliding hole 31 so as to reduce the height of the sofa; one end of the air release micropore 33 close to the inner wall of the slide hole 31 inclines upwards; an elastic bag 16 is arranged in the seat cushion 14, and the elastic bag 16 is communicated with the sliding hole 31 and the air bag 2 through a pipeline and a one-way valve; compressed air generated by the compression of the elastic bag 16 is filled into the bottom of the sliding hole 31, so that the height of the bottom plate 1 from the ground is further increased, and the sanitation of the bottom of the sofa is further convenient to clean; when a person sits on the seat cushion 14, the elastic bag 16 in the seat cushion 14 is pressed to generate compressed gas, the compressed gas is filled into the sliding hole 31 through a pipeline and a one-way valve, so that the sliding hole 31 is filled with the compressed gas, when the person leaves the seat cushion 14, the compressed gas in the sliding hole 31 pushes the sliding column 32 outwards, the distance between the bottom plate 1 and the ground is further increased, the sanitation of the ground at the bottom of the sofa is convenient to clean, the aggregation of termites is reduced, and the damage of the termites to the wooden sofa is further reduced; when the sliding column 32 slides in the sliding hole 31 to a position below the air release micropore 33, compressed air in the sliding hole 31 is slowly discharged through the air release micropore 33, so that the sofa automatically reduces the height after the ground at the bottom of the sofa is cleaned up hygienically, and the sofa keeps a proper initial height to be convenient to sit; meanwhile, one end of the deflation micropore 33 close to the inner wall of the sliding hole 31 inclines upwards, so that the gas sprayed out of the deflation micropore 33 flows downwards in an inclined mode and then is sprayed to the top of the air bag 2, and therefore the accumulation of dust on the top of the air bag 2 is reduced, and the sofa is kept clean.

When the sofa is in work, the air bag 2 is of a hollow structure, when a person sits on the cushion 14 of the sofa, the air bag 2 deforms under the pressure of the chair legs 11, so that the anti-skid columns 15 are sunken towards the inside of the air bag 2, at the moment, the bottom of the air bag 2 deforms greatly because the wall thickness of the circumferential side surface of the air bag 2 is larger than the wall thicknesses of the upper end and the lower end, and after the air bag 2 is compressed, the side wall of the air bag 2 is in contact with the ground, so that the contact area between the sofa and the ground is increased; when a person does not sit on the sofa, the air bag 2 is restored to the original state, so that the height of the bottom plate 1 from the ground is raised, the ground at the bottom of the sofa is convenient to clean, food scraps and other residues are prevented from remaining on the ground at the bottom of the sofa, termites and other insects are attracted to stay, and the probability that the sofa is bitten by the termites is reduced; the steel cup 21 embedded in the air bag 2 further improves the bearing capacity of the air bag 2, meanwhile, the turned edge 22 arranged at the opening edge of the steel cup 21 can reduce the compression of the steel cup 21 on the air bag 2, prevent the air bag 2 from cracking after the air bag 2 excessively deforms, and reduce the service life of the air bag 2, when termites climb to the outer wall of the air bag 2 to bite the air bag 2, the formic acid secreted by the termites flows to the position of the bottle plug 25 from the spray hole 26, the bottle plug 25 is corroded by the formic acid and then breaks, the termite-proof agent in the air bottle 23 is sprayed out through the spray pipe 24 and the spray hole 26 under the push of compressed air, further kills and expels the termites, prevents the termites from continuously climbing upwards along the air bag 2 and the chair legs 11 and biting the wooden sofa, and further reduces the termites; the gas cylinder 23 is arranged with the downward spray pipe 24 and the upward inclined bottle body, so that the anti-termite agent in the gas cylinder 23 is positioned at the bottle mouth, and the anti-termite agent is quickly and completely sprayed under the push of compressed gas when the gas cylinder 23 is opened after the bottle plug 25 is corroded, so that the sprayed anti-termite agent has enough dosage to kill termites, the killing and expelling effects of the termites are further improved, and the damage of the termites to the wooden sofa is further reduced; a part of the termite-proof agent can be stored through the sponge plug 27, the action time of the termite-proof agent is prolonged, and the termite control time is further prolonged; meanwhile, when the spherical cavity 28 in the air bag 2 is continuously extruded, the generated compressed gas is sprayed out through the sponge plug 27, so that the air flow of the sponge plug 27 is increased, the volatilization effect of the termite-proof agent is further increased, and the damage of termites to the wooden sofa is further reduced; when a person sits on the seat cushion 14, the elastic bag 16 in the seat cushion 14 is pressed to generate compressed gas, the compressed gas is filled into the sliding hole 31 through a pipeline and a one-way valve, so that the sliding hole 31 is filled with the compressed gas, when the person leaves the seat cushion 14, the compressed gas in the sliding hole 31 pushes the sliding column 32 outwards, the distance between the bottom plate 1 and the ground is further increased, the sanitation of the ground at the bottom of the sofa is convenient to clean, the aggregation of termites is reduced, and the damage of the termites to the wooden sofa is further reduced; when the sliding column 32 slides in the sliding hole 31 to a position below the air release micropore 33, compressed air in the sliding hole 31 is slowly discharged through the air release micropore 33, so that the sofa automatically reduces the height after the ground at the bottom of the sofa is cleaned up hygienically, and the sofa keeps a proper initial height to be convenient to sit; meanwhile, one end of the deflation micropore 33 close to the inner wall of the sliding hole 31 inclines upwards, so that the gas sprayed out of the deflation micropore 33 flows downwards in an inclined mode and then is sprayed to the top of the air bag 2, and therefore the accumulation of dust on the top of the air bag 2 is reduced, and the sofa is kept clean.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.