CN110742429B

CN110742429B - Intelligence sucking disc folding chair

Info

Publication number: CN110742429B
Application number: CN201910970139.1A
Authority: CN
Inventors: 康新慧; 张望超; 张银余
Original assignee: Shanghai Huihan Industry Co ltd
Current assignee: Shanghai Huihan Industry Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2022-10-18
Anticipated expiration: 2039-10-12
Also published as: CN110742429A

Abstract

The invention discloses an intelligent sucker folding chair which comprises a chair seat, a base arranged at the bottom of the chair seat and a folding backrest arranged on the chair seat, wherein the base is arranged on the bottom of the chair seat; the base comprises a metal base plate fixed on the bottom surface of the chair seat, a telescopic seat arranged at the bottom of the metal base plate and a sucker sleeve sleeved on the telescopic seat and fixed with the bottom surface of the metal base plate; the telescopic seat comprises a sliding block fixed to the bottom surface of the metal substrate, a sliding sleeve with an upward opening and a telescopic spring, wherein the axis of the telescopic spring is vertical to the sliding sleeve, the telescopic spring is arranged in the sliding sleeve, the sliding sleeve is sleeved on the sliding block and is in sliding connection with the sliding block, one end of the telescopic spring is fixed to the bottom surface of the sliding block, and the other end of the telescopic spring is fixed to the inner bottom surface of the sliding sleeve. The invention has the following advantages and effects: the folding chair is effectively tightly sucked with the ceramic tile ground when in use, so that a user can stably sit on the folding chair, the user is prevented from falling down due to slipping of the folding chair, and the safety of the folding chair is improved.

Description

Intelligence sucking disc folding chair

Technical Field

The invention relates to the field of folding chairs, in particular to an intelligent sucker folding chair.

Background

The folding chair is a portable chair with a folding function, is convenient to move and saves space. The folding chair is used for military purposes at first and then is commonly used in various training institutions, schools of all levels, public places, hospitals, restaurants, hotels, companies, families and other places.

At present, chinese utility model patent with publication number CN204015680U discloses a folding chair, including sitting frame, back, folding piece, preceding stabilizer blade, back stabilizer blade and handrail, folding piece one end is established on the back, and the other end is articulated with sitting frame, and preceding stabilizer blade is articulated with sitting frame, and handrail one end is articulated with the back, and the other end is articulated with preceding stabilizer blade, and sitting frame extends formation to the rear below back stabilizer blade. When the folding chair is used, the backrest rotates clockwise relative to the seat frame through the folding piece until the end part of the backrest abuts against the seat frame, so that the front support leg and the rear support leg support the ground, and the folding chair can be used for sitting; after the use, the backrest is rotated anticlockwise relative to the seat frame through the folding piece until the backrest and the seat frame are parallel, so that the armrests and the front support legs are attached to the seat frame and the backrest.

Above-mentioned technical scheme can reduce the space that the folding chair occupied, but has following defect: when the folding chair is used, the support legs of the folding chair lack an effective fastening design with the ground, so that the folding chair is easy to slip on smooth ceramic tiles, a user can not stably ride the folding chair, the user can fall down, and the safety is not enough.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the intelligent sucker folding chair which is effectively tightly sucked with the ceramic tile ground when in use, so that a user can stably sit on the intelligent sucker folding chair, and the user is prevented from falling down due to slipping of the folding chair, thereby improving the safety of the folding chair.

The technical purpose of the invention is realized by the following technical scheme:

an intelligent sucker folding chair comprises a chair seat, a base arranged at the bottom of the chair seat and a folding backrest arranged on the chair seat; the base comprises a metal base plate fixed on the bottom surface of the chair seat, a telescopic seat arranged at the bottom of the metal base plate and a sucker sleeve sleeved on the telescopic seat and fixed with the bottom surface of the metal base plate; the telescopic seat comprises a sliding block fixed on the bottom surface of the metal substrate, a sliding sleeve with an upward opening and a telescopic spring, wherein the axis of the sliding sleeve is vertical and arranged in the sliding sleeve, the sliding sleeve is sleeved on the sliding block and is in sliding connection with the sliding block, one end of the telescopic spring is fixed on the bottom surface of the sliding block, and the other end of the telescopic spring is fixed on the inner bottom surface of the sliding sleeve.

Through adopting the above technical scheme, when the user sits on the seat support, the seat support and be fixed in the metal substrate on the seat support bottom surface have born user's weight, make the sliding block that is fixed in on the metal substrate bottom surface move down, thereby make the expanding spring compression that sets up in the sliding seat, at this moment, space compression in the sucking disc cover, make the air escape in the sucking disc cover, thereby make and form negative pressure environment in the sucking disc cover, make the sucking disc cover tightly inhale with ceramic tile ground, make the user firm when taking, prevent that the user from slipping and falling down because of the folding chair, thereby the security of this folding chair has been promoted.

The invention is further arranged in that the sucker sleeve is made of rubber, a metal ring is fixed on the lower side edge of the sucker sleeve, and a lip edge made of sucker silica gel is fixed on the bottom of the metal ring.

Through adopting above-mentioned technical scheme, when the user sat on the seat support, the sucking disc cover moved down with the metal loop for the lip limit made by sucking disc silica gel offsets with ceramic tile ground, meanwhile, because the space compression in the sucking disc cover, make the air in the sucking disc cover see through soft lip limit discharge sucking disc cover, then the lip limit is inhaled tightly with the laminating of ceramic tile ground, makes sucking disc cover and ceramic tile ground inhale tightly, and adsorption effect is good.

The invention is further arranged in that the sucking disc sleeve is internally provided with a relieving device, the relieving device comprises an electric pushing cylinder fixed on the outer side wall of the sliding sleeve, a shovel sheet fixed at the end part of a piston rod of the electric pushing cylinder and a detection part used for detecting that no person is on the chair seat and driving the electric pushing cylinder to work, and the shovel sheet is abutted against the inner side wall of the lip edge.

Through adopting above-mentioned technical scheme, when sitting the people on the seat support, the detection portion detects someone on the seat support, and the detection portion does not start electronic pushing cylinder this moment, and when the user on the seat support left, the detection portion detected nobody on the seat support, and electronic pushing cylinder work this moment, and its piston rod promotes the slice of shovel and shovels the lip limit for in outside air gets into the sucking disc cover, thereby has solved the absorption on this folding chair and ceramic tile ground, and the person of facilitating the use removes.

The invention is further configured that the detection part comprises a controller fixed on the bottom surface of the metal substrate and a resistance-type strain gauge which is attached to and fixed with the bottom surface of the metal substrate, the resistance-type strain gauge is electrically connected with the controller, and the controller is electrically connected with the electric push cylinder.

Through adopting above-mentioned technical scheme, when the user left the seat support, metal substrate regained deformation because user's weight reduces, and the resistance of resistance-type foil gage changes this moment, then the controller sends drive signal to electronic pushing away the jar according to the resistance change of resistance-type foil gage to make the sucking disc cover relieve with the adsorbed state in ceramic tile ground, the person of facilitating the use carries.

The invention is further arranged that the upper surface of the sliding block is provided with a containing groove for containing the resistance-type strain gauge, and the resistance-type strain gauge is arranged at the center of the bottom surface of the metal substrate.

Through adopting above-mentioned technical scheme, the setting of holding tank for resistance-type foil gage sets up in metal substrate's central point and puts, and this position is the position of the maximum amount of metal substrate deformation, is favorable to enlargiing the excitation of metal substrate's deformation to resistance-type foil gage resistance.

The invention is further provided that the outer side wall of the sliding sleeve is provided with an air pressure hole communicated with the inside.

Through adopting above-mentioned technical scheme, the setting in atmospheric pressure hole for do not have the interior atmospheric pressure of sliding sleeve when the sliding block slides in the sliding sleeve and external atmospheric pressure to maintain unanimously, make the sliding block slide in smoothly.

The invention is further set that the chair seat comprises a bearing plate horizontally arranged on the upper side of the metal base plate, a support column fixed between the bearing plate and the metal base plate and a first chair cover sleeved on the bearing plate, wherein soft fillers are filled in the first chair cover.

Through adopting above-mentioned technical scheme, it is fixed with metal substrate that the bearing plate passes through the support column, and the cover is equipped with first chair cover on the bearing plate, and is full of the soft filler of texture in the first chair cover for it is more comfortable when the user takes.

The invention is further provided that the folding backrest comprises a backrest plate and a second chair cover sleeved on the backrest plate, and the second chair cover is also filled with filler; back board one end sets up, the other end with the bearing plate upper surface is articulated, just be fixed with on the bearing plate set up in the limiting plate of user one side is kept away from to the back board.

By adopting the technical scheme, the backrest plate is hinged with the bearing plate, so that a user can fold and fold the folding backrest conveniently, the backrest plate is sleeved with the second chair sleeve, and the second chair sleeve is filled with fillers, so that the comfort level of the user leaning on the folding backrest is improved.

In conclusion, the beneficial technical effects of the invention are as follows:

1. when a user sits on the chair seat, the chair seat and the metal substrate fixed on the bottom surface of the chair seat bear the weight of the user, so that the sliding block fixed on the bottom surface of the metal substrate moves downwards, the telescopic spring arranged in the sliding seat is compressed, at the moment, the space in the sucker sleeve is compressed, air in the sucker sleeve is discharged, a negative pressure environment is formed in the sucker sleeve, the sucker sleeve and the ceramic tile ground are tightly sucked, the user is stable when sitting, the user is prevented from falling down due to slipping of the folding chair, and the safety of the folding chair is improved;

2. when a user sits on the chair seat, the sucker sleeve and the metal ring move downwards to enable the lip edge made of sucker silica gel to abut against the ceramic tile ground, meanwhile, due to the fact that the space in the sucker sleeve is compressed, air in the sucker sleeve is enabled to penetrate through the soft lip edge to be discharged out of the sucker sleeve, then the lip edge is attached to the ceramic tile ground and is tightly sucked, the sucker sleeve is tightly sucked with the ceramic tile ground, and the sucking effect is good;

3. when the user leaves the seat support, the metal substrate restores deformation due to the reduction of the weight of the user, the resistance value of the resistance-type strain gauge changes at the moment, and then the controller sends a driving signal to the electric pushing cylinder according to the resistance value change of the resistance-type strain gauge, so that the sucking disc sleeve is released from the state of being adsorbed on the ceramic tile ground, and the carrying of the user is facilitated.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic view of the internal structure of the base;

FIG. 3 is a schematic view of the internal structure of the telescoping seat;

fig. 4 is a connection diagram of the control circuit.

In the figure: 1. a chair seat; 11. a bearing plate; 12. a support pillar; 13. a first seat cover; 14. a filler; 2. folding the backrest; 21. a back board; 22. a limiting plate; 23. a second seat cover; 3. a base; 31. a metal substrate; 32. a telescopic base; 321. a slider; 3211. accommodating grooves; 3212. a sliding groove; 322. a sliding sleeve; 3221. a slider; 3222. an air pressure hole; 323. a tension spring; 33. a sucker sleeve; 331. a metal ring; 332. a lip; 41. an electric pushing cylinder; 42. shoveling sheets; 43. a detection unit; 431. a resistance strain gauge; 432. a controller; 4321. a first conductive block; 4322. a second conductive block; 433. a detection circuit; 434. a response circuit.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, an intelligent sucker folding chair comprises a chair seat 1, a folding backrest 2 and a base 3. Referring to fig. 2, the seat 1 includes a pressure plate 11, a support column 12, and a first seat cover 13. The pressure bearing plate 11 is a circular plate shape, which is horizontally disposed. The supporting column 12 is a column structure with a circular cross section, and is obliquely arranged, and the upper end of the supporting column 12 is fixed with the bottom surface of the bearing plate 11. The first chair cover 13 is made of leather materials through sewing, the first chair cover 13 is sleeved on the bearing plate 11, the first chair cover 13 is filled with fillers 14, and the fillers 14 are made of sponge blocks, so that the surface of the first chair cover 13 is soft, and the comfort level of a user for sitting on the chair seat 1 is improved. In addition, the supporting columns 12 are provided with a plurality of supporting columns 12, the plurality of supporting columns 12 are distributed on the bottom surface of the pressure bearing plate 11 in a radial shape, and the lower ends of the supporting columns 12 penetrate through the first chair cover 13. The folding backrest 2 comprises a backrest plate 21, a limiting plate 22 and a second chair cover 23, the backrest plate 21 is rectangular plate-shaped, one end of the backrest plate is arranged upwards, the other end of the backrest plate is arranged on the bearing plate 11 and hinged with the upper surface of the bearing plate 11, and the backrest plate is arranged on one side, away from the sitting position of a user, of the bearing plate 11. The limiting plate 22 is in a rectangular block shape and fixed on the upper surface of the pressure-bearing plate 11, and the limiting plate 22 is disposed on a side of the backrest plate 21 away from the sitting position of the user for limiting the rotation angle of the backrest plate. The second chair cover 23 is sleeved on the backrest plate and is made of leather materials by sewing, and the second chair cover 23 is fixed with the first chair cover 13 by sewing. The second seat cover 23 is also filled with the filler 14, which improves the comfort of the user in leaning on the folding backrest 2.

As shown in fig. 2, the base 3 includes a metal base plate 31, a telescopic seat 32 and a sucker sleeve 33, the metal base plate 31 is circular plate-shaped and made of steel plate, and is horizontally disposed at the lower side of the seat 1, and the vertical axis of the metal base plate 31 coincides with the vertical axis of the pressure-bearing plate 11. As shown in fig. 3, the retractable seat 32 includes a sliding block 321, a sliding sleeve 322 and a retractable spring 323, the sliding block 321 is a circular block, the axis of the sliding block 321 coincides with the axis of the metal substrate 31, and the upper surface of the sliding block 321 is fixed to the bottom surface of the metal substrate 31. In addition, an accommodating groove 3211 is formed in the center of the upper surface of the sliding block 321, and an opening of the accommodating groove 3211 is circular. The sliding sleeve 322 is a sleeve-shaped structure with a circular opening, the opening of the sliding sleeve is upward, the surface of the closed end of the sliding sleeve 322 is abutted against the tile floor, and the sliding sleeve 322 is sleeved on the bottom of the sliding block 321. The side wall of the sliding block 321 is provided with a sliding groove 3212, the cross section of the sliding groove 3212 is rectangular, the length direction is vertical, and a sliding block 3221 is slidably connected in the sliding groove 3212. The slider 3221 is rectangular block-shaped, and its surface close to the outside of the sliding groove 3212 is fixed to the inner side wall of the sliding sleeve 322, so that the sliding sleeve 322 is slidably connected to the sliding block 321. The outer side wall of the sliding sleeve 322 is provided with an air pressure hole 3222, the opening of the air pressure hole 3222 is circular, the air pressure hole 3222 is communicated with the inside of the sliding sleeve 322, and the air pressure hole 3222 is arranged at the bottom of the sliding sleeve 322. The telescopic spring 323 is disposed in the sliding sleeve 322, and has a vertical axis, and the upper end of the telescopic spring 323 is fixed to the bottom surface of the sliding block 321, and the lower end is fixed to the inner bottom surface of the sliding sleeve 322. The suction cup sleeve 33 is a bellows-shaped structure with a circular opening, is made of rubber, has a thickness of 4mm, is sleeved on the sliding sleeve 322, and is fixed and sealed with the bottom surface of the metal substrate 31 at the upper end of the suction cup sleeve 33. The bottom of the sucker sleeve 33 is provided with a metal ring 331 and a lip 332, the metal ring 331 is a circular structure with a circular frame section and is made of stainless steel, and the upper surface of the metal ring is fixed with the bottom edge of the sucker sleeve 33. The lip 332 is a ring-shaped structure and is made of a sucker silica gel, and the cross section of a frame of the lip is parallelogram, so that the bottom of the side wall of the lip 332 deflects towards the outside of the sucker sleeve 33. When a user sits on the seat 1, the metal base plate 31 drives the sliding block 321 to move downwards, the telescopic spring 323 is compressed, the lip edge 332 at the bottom of the sucker sleeve 33 abuts against the tile ground, the space in the sucker sleeve 33 is reduced along with the continuous downward movement of the metal base plate 31, so that the air in the sucker sleeve 33 overflows through the lip edge 332, when the metal base plate 31 stops moving, the bottom surface of the lip edge 332 is attached to and abuts against the tile ground, and the air pressure in the sucker sleeve 33 is smaller than the external atmospheric pressure at the moment, so that the sucker sleeve 33 is tightly sucked with the tile ground, and the seat 1 is stable.

As shown in fig. 3, a releasing device is further disposed in the suction cup sleeve 33, the releasing device includes an electric pushing cylinder 41, a shovel 42 and a detecting portion 43, the electric pushing cylinder 41 is a commonly used driving module, and is made of a combination of a servo motor and a lead screw, and is fixed on the outer side wall of the sliding sleeve 322, and the piston rod of the electric pushing cylinder faces the inner side wall of the suction cup sleeve 33. The shovel 42 is an L-shaped sheet structure, one end of the shovel is vertical, the other end of the shovel is horizontal, and the top of the vertical end of the shovel 42 is fixed with the end of the piston rod of the electric pushing cylinder 41. The horizontal end surface of the shovel blade 42 inclines upwards by 45 degrees, and the horizontal end of the shovel blade 42 is aligned with the lip edge 332 in the vertical direction, when the electric pushing cylinder 41 works, the piston rod of the electric pushing cylinder pushes the shovel blade 42 to move towards the sucker sleeve 33, so that the horizontal end of the shovel blade 42 supports against the inclined inner side wall of the lip edge 332, the bottom surface of the lip edge 332 is separated from the tile ground, at the moment, the external air can enter the sucker sleeve 33, the adsorption state between the sucker sleeve 33 and the tile ground is released, and a user can move the folding chair conveniently. The detecting portion 43 includes a resistance strain gauge 431 and a controller 432, the resistance strain gauge 431 is of type zotian BF1K-3AA and is disposed in the accommodating groove 3211, the resistance strain gauge 431 is adhered to the center of the bottom surface of the metal substrate 31, and both ends of the resistance strain gauge 431 are adhered and fixed to the bottom surface of the metal substrate 31 by an adhesive. When a person sits on the seat 1, the center of the metal substrate 31 bulges downward, so that the resistance strain gauges 431 with two ends fixed to the bottom surface of the metal substrate 31 are stretched, and the resistance value of the resistance strain gauges 431 is increased. The controller 432 is a circuit control unit, which is fixed on the bottom surface of the metal substrate 31, and a control circuit is provided in the controller 432.

As shown in fig. 4, the control circuit includes a detection circuit 433 and a response circuit 434, wherein the detection circuit 433 includes a comparison resistor R2, a first conductive block 4321, a second conductive block 4322 and a built-in power source VCC1. Referring to fig. 3, the first conductive block 4321 is rectangular, made of copper, and coupled to the positive electrode of the internal power source VCC1, and the first conductive block 4321 is fixed to the bottom surface of the metal substrate 31 by glue. The second conductive block 4322 has a structure identical to that of the first conductive block 4321, and is fixed to the outer side wall of the sliding sleeve 322, the second conductive block 4322 is disposed at the top of the sliding sleeve 322 and aligned with the first conductive block 4321, when a user sits on the seat 1, the metal substrate 31 moves downward to drive the first conductive block 4321 to move downward until the first conductive block 4321 contacts the second conductive block 4322. One end of the resistive strain gauge 431 is coupled to the second conductive block 4322, the other end is coupled to the comparison resistor R2, and the other end of the comparison resistor R2 is grounded. The response circuit 434 includes a transistor, a relay, a built-in power supply VCC2, a protection resistor R3, and a built-in power supply VCC3. The triode is an NPN type triode of S9013, a base of the triode is coupled to the protection resistor R3, and the other end of the protection resistor R3 is coupled to a connection point between the resistance strain gauge 431 and the comparison resistor R2. Relay coil KM1 one end is coupled with built-in power VCC2 positive pole, and the other end is coupled with the collecting electrode of triode, and the transmitter ground connection of triode. One end of a normally open contact switch KM1-1 of the relay is coupled with the negative electrode of a built-in power supply VCC3, the other end of the normally open contact switch KM1-1 of the relay is coupled with an electric push cylinder 41, and the other end of the electric push cylinder 41 is coupled with the positive electrode of the built-in power supply VCC3.

When no person is on the chair seat 1, the metal substrate 31 is not deformed, the resistance strain gauge 431 is not extended, the resistance value of the resistance strain gauge 431 is at a low point, the first conductive block 4321 is not in contact with the second conductive block 4322 at the moment, the detection circuit 433 is disconnected, the base of the triode is at a low voltage, the triode is closed, no current exists in the relay coil KM1 at the moment, the normally open contact switch KM1-1 of the relay is disconnected, and the electric push cylinder 41 does not work.

When a user sits on the seat 1, the bottom surface of the metal substrate 31 bulges downwards and deforms, the resistance-type strain gauge 431 is gradually extended, the resistance value of the resistance-type strain gauge 431 is gradually increased, at this time, the first conductive block 4321 is not in contact with the second conductive block 4322, the detection circuit 433 is disconnected, the triode is still in a closed state, the electric push cylinder 41 does not work, at this time, the sliding block 321 slides on the sliding sleeve 322, and the space in the suction cup sleeve 33 is compressed, so that air in the suction cup sleeve 33 overflows from the tile ground through the lip edge 332.

When the user completely sits on the seat 1, the first conductive block 4321 contacts with the second conductive block 4322, but the resistance of the resistance strain gauge 431 is at a high point, so that the base of the triode is at a low voltage, the triode is turned off, no current flows in the relay coil KM1, and the electric push cylinder 41 still does not work.

When the user leaves the seat support 1, the metal substrate 31 recovers the deformation, so that the resistance value of the resistance-type strain gauge 431 changes to the lowest point, at the moment, because the lip 332 at the bottom of the sucker sleeve 33 is still adsorbed with the ceramic tile ground, the position of the metal substrate 31 is not changed, the first conductive block 4321 is in contact with the second conductive block 4322, so that the detection circuit 433 is switched on, so that the base of the triode is at a high voltage, so that the triode is switched on, at the moment, the current passes through the relay coil KM1, so that the relay normally open switch KM1-1 is closed, so that the built-in power supply VCC3 supplies power for the electric push cylinder 41, so that the adsorption state of the sucker sleeve 33 and the ceramic tile ground is released, and the folding chair is convenient for the user to move.

The working principle of the embodiment is as follows: when the user sits on seat support 1, seat support 1 and the metal substrate 31 that is fixed in on the 1 bottom surface of seat support have born user's weight, make sliding block 321 that is fixed in on the metal substrate 31 bottom surface move down, thereby make the expanding spring 323 compression that sets up in the sliding seat, at this moment, the space compression in the sucking disc cover 33, make the air escape in the sucking disc cover 33, thereby make and form the negative pressure environment in the sucking disc cover 33, make sucking disc cover 33 and ceramic tile ground inhale tightly, make the user firm when taking, prevent that the user from slipping and falling down because of the folding chair, thereby the security of this folding chair has been promoted.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention should also be considered as within the scope of the present invention.

Claims

1. The utility model provides an intelligence sucking disc folding chair, includes seat support (1), sets up in base (3) of seat support (1) bottom and sets up folding back (2) on seat support (1), characterized by: the base (3) comprises a metal base plate (31) fixed on the bottom surface of the chair seat (1), a telescopic seat (32) arranged at the bottom of the metal base plate (31) and a sucking disc sleeve (33) sleeved on the telescopic seat (32) and fixed with the bottom surface of the metal base plate (31); the telescopic seat (32) comprises a sliding block (321) fixed to the bottom surface of the metal base plate (31), a sliding sleeve (322) with an upward opening and a telescopic spring (323) with an axis vertical to the sliding sleeve (322), the sliding sleeve (322) is sleeved on the sliding block (321) and is in sliding connection with the sliding block, one end of the telescopic spring (323) is fixed to the bottom surface of the sliding block (321), and the other end of the telescopic spring is fixed to the inner bottom surface of the sliding sleeve (322); the sucker sleeve (33) is made of rubber, a metal ring (331) is fixed on the lower side edge of the sucker sleeve (33), and a lip (332) made of sucker silica gel is fixed at the bottom of the metal ring (331); be equipped with the remove device in sucking disc cover (33), the remove device is including being fixed in electronic push cylinder (41) on sliding sleeve (322) lateral wall, be fixed in shovel piece (42) and being used for detecting of electronic push cylinder (41) piston rod tip unmanned on seat support (1) drives detection portion (43) of electronic push cylinder (41) work, shovel piece (42) with lip limit (332) inside wall offsets.

2. The intelligent sucker folding chair as claimed in claim 1, wherein: the detection part (43) comprises a controller (432) fixed on the bottom surface of the metal substrate (31) and a resistance type strain gauge (431) attached to and fixed with the bottom surface of the metal substrate (31), the resistance type strain gauge (431) is electrically connected with the controller (432), and the controller (432) is electrically connected with the electric push cylinder (41).

3. The intelligent sucker folding chair as claimed in claim 2, wherein: an accommodating groove (3211) for accommodating the resistance strain gauge (431) is formed in the upper surface of the sliding block (321), and the resistance strain gauge (431) is arranged in the center of the bottom surface of the metal substrate (31).

4. The intelligent sucker folding chair as claimed in claim 1, which is characterized in that: the outer side wall of the sliding sleeve (322) is provided with an air pressure hole (3222) communicated with the inside.

5. The intelligent sucker folding chair as claimed in claim 1, which is characterized in that: seat support (1) including the level set up in bearing plate (11) of metal substrate (31) upside, be fixed in support column (12) between bearing plate (11) and metal substrate (31) and cover are located first chair cover (13) on bearing plate (11), be full of soft filler (14) of texture in first chair cover (13).

6. The intelligent sucker folding chair as claimed in claim 5, wherein: the folding backrest (2) comprises a backrest plate (21) and a second chair cover (23) sleeved on the backrest plate (21), and the second chair cover (23) is filled with filler (14); back board (21) one end sets up, the other end with bearing plate (11) upper surface is articulated, just be fixed with on bearing plate (11) set up in limiting plate (22) of user one side are kept away from to back board (21).