A kind of student's seat special with elevating function
Technical field
The present invention relates to student appliance technical field, be specially a kind of student's seat special with elevating function.
Background technology
Seat is a kind of also armed thing to sit on having backrest, having.Ancient times sit on the ground, and former do not have chair, and " chair " is originally wood name.High school student's upper class hour, need to use seat, owing to the height of each high school student is different, so the seat height that each high school student needs is also different, so people have invented height-adjustable seat, high school student's seat great majority in the market are all with hand adjustment joint height, thus wasting the muscle power of high school student, and make the adjustment of height of seat very inconvenient.
Summary of the invention
It is an object of the invention to provide a kind of student's seat special with elevating function, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: a kind of student's seat special with elevating function, and including base plate, the upper surface of described base plate is fixedly connected with lowering or hoisting gear, and the top of described lowering or hoisting gear is fixedly connected with seat body.
nullDescribed lowering or hoisting gear includes retractor device,Described retractor device includes housing,Described housing be internally provided with slide bar,The front of described slide bar and side are fixedly connected with limited location block,One end of described limited block is slidably connected on the inwall of housing,The top of described slide bar is fixedly connected with top board,The lower surface of described top board is fixedly connected with sliding bar,The bottom of described sliding bar is fixedly connected with movable pulley,The surface of described sliding bar is socketed with sliding bar set,The back side of described sliding bar set is fixedly connected with the first fixing bar,One end of described first fixing bar is fixing with the side of housing to be connected,The lower surface of the described first fixing bar is fixedly connected with the first contiguous block,The front of described first contiguous block is fixedly connected with pull rope,One end of described pull rope sequentially passes through movable pulley and quiet pulley and fixing with the second contiguous block arranging electric expansion masthead end is connected,The bottom of described electric expansion bar is fixedly connected on the upper surface of base plate,The lower surface of the described first fixing bar is fixing with the top of quiet pulley to be connected,Described sliding bar is between the first contiguous block and quiet pulley.
Preferably, described seat body includes seat support, and the front of described seat support is fixedly connected with handrail, and the side of described seat support is fixedly connected with the chair back, and the side of the described chair back is fixing with one end of handrail to be connected.
Preferably, the upper surface of described top board is fixing with the lower surface of seat support to be connected, and the upper surface of described base plate is fixing with the bottom of housing to be connected.
Preferably, the quantity of described lowering or hoisting gear is two, and two lowering or hoisting gears are fixedly connected with the upper surface at base plate, and each lowering or hoisting gear includes two retractor devices, and described electric expansion bar is between two retractor devices.
Compared with prior art, the invention has the beneficial effects as follows: this has student's seat special of elevating function, by arranging electric expansion bar, electric expansion bar is made to shorten, the second contiguous block is made to decline and pulling traction rope, so that movable pulley drives sliding bar to rise, so that the height of seat support body raises, from the height saving seat body without high school student with hand adjustment, reduce the amount of labour of high school student, save the muscle power of high school student, the adjustment making height of seat is convenient, by arranging retractor device, the raising and lowering making seat body is more steady, by arranging movable pulley, quiet pulley and pull rope, the raising and lowering making seat body is convenient.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of front view of the present invention;
Fig. 2 is the cross-sectional view of lowering or hoisting gear front view of the present invention.
In figure: 1 base plate, 2 lowering or hoisting gears, 201 retractor devices, 21 housings, 22 slide bars, 23 limited blocks, 202 top boards, 203 first contiguous blocks, 204 pull ropes, 205 movable pulleys, 206 quiet pulleys, 207 second contiguous blocks, 208 electric expansion bars, 209 sliding bars, 2010 sliding bar sets, 2,011 first fixing bar, 3 seat body, 31 seat supports, 32 handrails, 33 chair back.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
nullRefer to Fig. 1-2,The present invention provides a kind of technical scheme: a kind of student's seat special with elevating function,Including base plate 1,The upper surface of base plate 1 is fixedly connected with lowering or hoisting gear 2,By arranging lowering or hoisting gear 2,The raising and lowering making seat body 3 is convenient,The quantity of lowering or hoisting gear 2 is two,And two lowering or hoisting gears 2 are fixedly connected with the upper surface at base plate 1,And each lowering or hoisting gear 2 includes two retractor devices 201,By arranging retractor device 201,The raising and lowering making seat body 3 is more steady,Electric expansion bar 208 is between two retractor devices 201,The top of lowering or hoisting gear 2 is fixedly connected with seat body 3,Seat body 3 includes seat support 31,The front of seat support 31 is fixedly connected with handrail 32,The side of seat support 31 is fixedly connected with the chair back 33,The side of the chair back 33 is fixing with one end of handrail 32 to be connected.
nullLowering or hoisting gear 2 includes retractor device 201,Retractor device 201 includes housing 21,By arranging housing 21,Slide bar 22 is made to slide in housing 21 convenient,Housing 21 be internally provided with slide bar 22,The front of slide bar 22 and side are fixedly connected with limited location block 23,By arranging limited block 23,The raising and lowering making slide bar 22 is more steady,One end of limited block 23 is slidably connected on the inwall of housing 21,The top of slide bar 22 is fixedly connected with top board 202,The upper surface of top board 202 is fixing with the lower surface of seat support 31 to be connected,The upper surface of base plate 1 is fixing with the bottom of housing 21 to be connected,The lower surface of top board 202 is fixedly connected with sliding bar 209,By arranging sliding bar 209 and sliding bar set 2010,Make sliding bar 209 overlap in 2010 at sliding bar to slide,The raising and lowering making seat body 3 is convenient,The bottom of sliding bar 209 is fixedly connected with movable pulley 205,By arranging movable pulley 205,Pull rope 204 is made to drive movable pulley 205 raising and lowering convenient,The surface of sliding bar 209 is socketed with sliding bar set 2010,The back side of sliding bar set 2010 is fixedly connected with the first fixing bar 2011,By arranging the first fixing bar 2011,Make arranging of the first contiguous block 203 and quiet pulley 206 convenient,One end of first fixing bar 2011 is fixing with the side of housing 21 to be connected,The lower surface of the first fixing bar 2011 is fixedly connected with the first contiguous block 203,The front of the first contiguous block 203 is fixedly connected with pull rope 204,One end of pull rope 204 sequentially passes through movable pulley 205 and quiet pulley 206 and fixing with the second contiguous block 207 arranging electric expansion bar 208 top is connected,By arranging pull rope 204,The raising and lowering making movable pulley 205 is convenient,The bottom of electric expansion bar 208 is fixedly connected on the upper surface of base plate 1,The lower surface of the first fixing bar 2011 is fixing with the top of quiet pulley 206 to be connected,Sliding bar 209 is between the first contiguous block 203 and quiet pulley 206.
Operation principle: when student's seat special with elevating function uses, first electric expansion bar 208 is made to shorten, the second contiguous block 207 is made to pull downward on pull rope 204, so that movable pulley 205 drives sliding bar 209 and slide bar 22 to rise, so that top board 202 and seat body 3 raise, when needs reduce seat body 3, electric expansion bar 208 is made to shorten.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the present invention be defined by the appended.