CN206868277U - A kind of teaching bench for chemistry experiment - Google Patents
A kind of teaching bench for chemistry experiment Download PDFInfo
- Publication number
- CN206868277U CN206868277U CN201720839693.2U CN201720839693U CN206868277U CN 206868277 U CN206868277 U CN 206868277U CN 201720839693 U CN201720839693 U CN 201720839693U CN 206868277 U CN206868277 U CN 206868277U
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- China
- Prior art keywords
- bevel gear
- thread bush
- screw mandrel
- supporting plate
- screw
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Abstract
The utility model discloses a kind of teaching bench for chemistry experiment, including supporting plate, riser, landing slab, sliding block, chute, connecting rod, swivel nut, screw rod, support block, outrigger plate, lifting and moving device, screw rod is formed by two sections, two sections one composition but two sections on hand of thread spiral it is opposite, lifting and moving device includes driving shaft, rotating disk, first bevel gear, second bevel gear, first screw mandrel, first thread bush, first roller, third hand tap gear, driven shaft, 4th bevel gear, 5th bevel gear, second screw mandrel, second thread bush, second roller, connecting rod is connected between first thread bush and the second thread bush.The utility model is simple and reasonable, easy to use, and the height of experiment porch can be adjusted according to demand, and the people for adapting to different heights uses, and use range is wide, and entirety can move, convenient to carry, and is moved easily and positions, using quick.
Description
Technical field
A kind of testing stand is the utility model is related to, is specifically a kind of teaching bench for chemistry experiment.
Background technology
Chemistry is one kind of natural science, and composition, property, structure and the change of material are studied on molecule, atom level
Rule;Create the science of novel substance.The world is chemical then be the mankind to recognize and transform the main of the material world by material composition
One of ways and means.It is a subject with a long history and dynamic, and its achievement is the important mark of social civilization
Will, chemistry in there is two kinds of versions of chemical change and physical change.
In chemical experiment teaching be unable to do without experimental bench use, but existing experimental bench be all often it is fixed, both
It is that a small number of transportable experimental benches are also all only to set trundle in its bottom four corners, but these rollers often do not have
Standby positioner, and the ground in chemical laboratory is often very smooth, therefore these experimental benches are easy to move, and also it is existing
Experimental bench its working depth be all often immutable, can not thus be carried out according to the height of different people from main regulation,
Use very inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of teaching bench for chemistry experiment, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides following technical scheme:
A kind of teaching bench for chemistry experiment, including supporting plate, the upper end left and right sides of the supporting plate, which is provided with, mutually puts down
The riser that row is set, is provided with landing slab between two risers, and the left and right ends of landing slab are provided with sliding block, in the relative one side of two risers
Provided with chute, the lower surface of the landing slab is hinged with two connecting rods along Central Symmetry, and the lower end of connecting rod is respectively hinged on swivel nut, spiral shell
Set is installed on screw rod, and screw rod is formed by two sections, and two sections of one form but the hand of thread spiral on two sections is on the contrary, the spiral shell
Support block is installed, the lower end of support block is fixedly mounted on the supporting plate on bar;The side of lower end four of the supporting plate is provided with branch
Leg plate, lifting and moving device is installed in the space between four outrigger plates, lifting and moving device includes driving shaft, and driving shaft is worn
Outrigger plate is crossed, one end that driving shaft is located on the outside of outrigger plate is also equipped with rotating disk, and the other end of driving shaft is provided with the first cone tooth
Wheel, first bevel gear are engaged with second bevel gear, and second bevel gear is installed on the first screw mandrel, the upper end of the first screw mandrel and support
Plate lower bearing connects, and the lower end of the first screw mandrel is threaded with the first thread bush, and the lower end of the first thread bush is provided with first
Roller, the second bevel gear have also meshed with third hand tap gear, and third hand tap gear is provided with the left end of driven shaft, in driven shaft
Portion schedules supporting plate lower end by fixed block, and the right-hand member of driven shaft is provided with the 4th bevel gear, and the 4th bevel gear is engaged with
5th bevel gear, the 5th bevel gear are provided with the second screw mandrel, and the upper end of the second screw mandrel is connected with supporting plate lower bearing, and second
The lower end of screw mandrel is threaded with the second thread bush, and the lower end of the second thread bush is provided with the second roller, first thread bush
Horizontal connection has connecting rod between the second thread bush.
As further program of the utility model:The left end of the screw rod is connected with crank.
As the utility model further scheme:Scale is additionally provided with the riser side.
As the utility model further scheme:The screw rod is arranged between two risers by bearing.
As the utility model further scheme:First screw mandrel is opposite with the screw thread on the second screw mandrel.
As the utility model further scheme:The through hole passed through for driven shaft is offered on the fixed block.
Compared with prior art, the beneficial effects of the utility model are:The utility model is simple and reasonable, user
Just, the height of experiment porch can be adjusted according to demand, the people for adapting to different heights uses, and use range is wide, and whole
Body can move, convenient to carry, and be moved easily and position, using quick.
Brief description of the drawings
Fig. 1 is the structural representation of teaching bench for chemistry experiment;
In figure:1- supporting plates, 2- risers, 3- landing slabs, 4- sliding blocks, 5- chutes, 6- connecting rods, 7- swivel nuts, 8- screw rods, 9- branch
Bracer, 10- cranks, 11- bearings, 12- outrigger plates, 13- rotating disks, 14- driving shafts, 15- first bevel gears, 16- second bevel gears,
The screw mandrels of 17- first, the thread bush of 18- first, the rollers of 19- first, 20- third hand tap gears, 21- driven shafts, 22- fixed blocks, 23-
Four bevel gears, the bevel gears of 24- the 5th, the screw mandrels of 25- second, the thread bush of 26- second, the rollers of 27- second, 28- connecting rods.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Referring to Fig. 1, a kind of teaching bench for chemistry experiment, including supporting plate 1, the upper end left and right sides of the supporting plate 1
Riser 2 arranged in parallel is installed, landing slab 3 is provided between two risers 2, the left and right ends of landing slab 3 are provided with sliding block 4,
The relative one side of two risers 2 is provided with chute 8, landing slab 3 is slided up and down between two risers 2, the landing slab 3
Lower surface is hinged with two connecting rods 6 along Central Symmetry, and the lower end of connecting rod 6 is respectively hinged on swivel nut 7, and swivel nut 7 is installed in screw rod 8
On, screw rod 8 is formed by two sections, the hand of thread spiral on two sections of one compositions but two sections on the contrary, so when screw rod 8 rotates,
Because the upper end of swivel nut 7 is relatively fixed on the horizontal plane where screw rod 8 by the connecting platform plate 3 of connecting rod 6, swivel nut 7, because
The rotation of this screw rod 8 will not be rotated together with swivel nut 7, but swivel nut 7 can be made to produce horizontal displacement, and the displacement of swivel nut 7 can band
Dynamic connecting rod 6 produces the change of angle, because connecting rod 6 also acts as the effect of certain support platform plate 3, therefore the inclination angle of connecting rod 6
During degree change, the height of landing slab 3 will start to change, and therefore, landing slab 3 can be adjusted according to actual use situation
Just.
Because screw rod 8 can bear the part power suffered by landing slab 3 by connecting rod 6, therefore in order to increase the tolerance of screw rod 8
Ability, support block 9 is installed on the screw rod 8, the lower end of support block 9 is fixedly mounted in supporting plate 1.
The left end of the screw rod 8 is connected with crank 10, by crank 10 can convenient adjusting screw rod 8 rotation, simultaneously
In order to increase definition when landing slab 3 is adjusted, scale (not shown) is additionally provided with the side of riser 2, so can be with clear
Regulation landing slab 3 height.
The screw rod 8 is arranged between two risers 2 by bearing 11.
The side of lower end four of the supporting plate 1 is provided with outrigger plate 12, and liter is provided with the space between four outrigger plates 12
Mobile device drops, and lifting and moving device includes driving shaft 14, and driving shaft 14 passes through outrigger plate 12, and driving shaft 14 is located at outrigger plate 12
The one end in outside is also equipped with rotating disk 13, and the other end of driving shaft 14 is provided with first bevel gear 15, and first bevel gear 15 engages
There is second bevel gear 16, second bevel gear 16 is installed on the first screw mandrel 17, upper end and the bottom axle of supporting plate 1 of the first screw mandrel 17
Connection is held, the lower end of the first screw mandrel 17 is threaded with the first thread bush 18, and the lower end of the first thread bush 18 is provided with the first rolling
Wheel 19, the second bevel gear 16 has also meshed with third hand tap gear 20, and third hand tap gear 20 is provided with the left end of driven shaft 21, from
The middle part of moving axis 21 schedules the lower end of supporting plate 1 by fixed block 22, and the right-hand member of driven shaft 21 is provided with the 4th bevel gear 23,
4th bevel gear 23 is engaged with the 5th bevel gear 24, and the 5th bevel gear 24 is provided with the second screw mandrel 25, the second screw mandrel 25 it is upper
End is connected with the lower bearing of supporting plate 1, and the lower end of the second screw mandrel 25 is threaded with the second thread bush 26, the second thread bush 26
Lower end is provided with the second roller 27, between the thread bush 26 of the first thread bush 18 and second horizontal connection have connecting rod 28;When
Rotating disk 13 is can be manually rotated, rotating disk 13 drives driving shaft 14 to rotate, and driving shaft 14 drives second bevel gear by first bevel gear 15
16 are rotated, and second bevel gear 16 is fixed on the first screw mandrel 17, and so, the first screw mandrel 17 can also start to rotate, the first screw mandrel
17 upper end is fixedly mounted by bearing and supporting plate 1, and such first screw mandrel 17 can only rotate, without being subjected to displacement, and the
First thread bush 18 of the lower end of one screw mandrel 17 threaded connection is connected by connecting rod 28 with the second thread bush 26, such first screw thread
Form and be relatively fixed between the thread bush 26 of set 18 and second, i other words, the rotation of the first screw mandrel 17 will not drive the first screw thread
Set 18 and then rotates against, but can be by the first screw mandrel 17 precession or back-out from the first thread bush 18, such first screw thread
Set 18 will move up and down, and first round rolling 19 can be made to contact or separate with ground, while second bevel gear 16 is also nibbled
Conjunction has third hand tap gear 20, and third hand tap gear 20 drives from driven shaft 21 and rotated, and driven shaft 21 drives the 4th bevel gear 23 to rotate,
4th bevel gear 23 drives the 5th bevel gear 24 to rotate, and the 5th bevel gear 24 is arranged on the second screw mandrel 25, equally, the second screw mandrel
25 rotation can also drive moving up and down for the second thread bush 26, make the second thread bush 26 and the first thread bush 18 synchronous upper and lower,
Convenient overall movement and fixation.
First screw mandrel 17 is opposite with the screw thread on the second screw mandrel 25.
The through hole passed through for driven shaft 21 is offered on the fixed block 22.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Make a variety of changes.
Claims (6)
1. a kind of teaching bench for chemistry experiment, including supporting plate, it is characterised in that installed at left and right sides of the upper end of the supporting plate
There is riser arranged in parallel, landing slab is provided between two risers, the left and right ends of landing slab are provided with sliding block, and two risers are relative
One side be provided with chute, the lower surface of the landing slab is hinged with two connecting rods along Central Symmetry, and the lower end of connecting rod is respectively hinged on
On swivel nut, swivel nut is installed on screw rod, and screw rod is formed by two sections, and two sections of one form but the hand of thread spiral phase on two sections
Instead, support block is installed, the lower end of support block is fixedly mounted on the supporting plate on the screw rod;The side of lower end four of the supporting plate
Outrigger plate is installed, lifting and moving device is installed in the space between four outrigger plates, lifting and moving device includes driving shaft,
Driving shaft passes through outrigger plate, and one end that driving shaft is located on the outside of outrigger plate is also equipped with rotating disk, and the other end of driving shaft is provided with
First bevel gear, first bevel gear are engaged with second bevel gear, and second bevel gear is installed on the first screw mandrel, the first screw mandrel it is upper
End is connected with supporting plate lower bearing, and the lower end of the first screw mandrel is threaded with the first thread bush, the lower end peace of the first thread bush
Equipped with the first roller, the second bevel gear has also meshed with third hand tap gear, and third hand tap gear is provided with the left end of driven shaft, from
The middle part of moving axis schedules supporting plate lower end by fixed block, and the right-hand member of driven shaft is provided with the 4th bevel gear, the 4th cone tooth
Wheel is engaged with the 5th bevel gear, and the 5th bevel gear is provided with the second screw mandrel, upper end and the supporting plate lower bearing of the second screw mandrel
Connection, the lower end of the second screw mandrel are threaded with the second thread bush, and the lower end of the second thread bush is provided with the second roller, and described the
Horizontal connection has connecting rod between one thread bush and the second thread bush.
2. teaching bench for chemistry experiment according to claim 1, it is characterised in that the left end of the screw rod, which is connected with, to be shaken
.
3. teaching bench for chemistry experiment according to claim 1, it is characterised in that be additionally provided with quarter on the riser side
Degree.
4. teaching bench for chemistry experiment according to claim 1, it is characterised in that the screw rod is arranged on two by bearing
Between riser.
5. teaching bench for chemistry experiment according to claim 1, it is characterised in that on first screw mandrel and the second screw mandrel
Screw thread it is opposite.
6. teaching bench for chemistry experiment according to claim 1, it is characterised in that offered on the fixed block for driven
The through hole that axle passes through.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201720839693.2U CN206868277U (en) | 2017-07-05 | 2017-07-05 | A kind of teaching bench for chemistry experiment |
Applications Claiming Priority (1)
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CN201720839693.2U CN206868277U (en) | 2017-07-05 | 2017-07-05 | A kind of teaching bench for chemistry experiment |
Publications (1)
Publication Number | Publication Date |
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CN206868277U true CN206868277U (en) | 2018-01-12 |
Family
ID=61330330
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CN201720839693.2U Expired - Fee Related CN206868277U (en) | 2017-07-05 | 2017-07-05 | A kind of teaching bench for chemistry experiment |
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Cited By (14)
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CN108343263A (en) * | 2018-02-05 | 2018-07-31 | 湖北工业大学 | A kind of supporting frame with steel structure |
CN108492635A (en) * | 2018-03-30 | 2018-09-04 | 潍坊护理职业学院 | A kind of movable type nursing teaching teaching aid |
CN108669614A (en) * | 2018-04-10 | 2018-10-19 | 杨冰璐 | A kind of lead screw driving lifting squash type mashed potatoes processing unit (plant) |
CN108671976A (en) * | 2018-06-28 | 2018-10-19 | 祁建成 | A kind of multi-function experimental rig |
CN108711315A (en) * | 2018-04-27 | 2018-10-26 | 伍伟权 | A kind of Art undergraduate device for the bore hole 3D technology that portable is comprehensive |
CN108718985A (en) * | 2018-05-10 | 2018-11-02 | 岑立强 | A kind of planting tree auxiliary device |
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CN108837409A (en) * | 2018-06-29 | 2018-11-20 | 李汉昕 | A kind of physical training indoor body-building device |
CN109281476A (en) * | 2018-08-31 | 2019-01-29 | 君恒咨询有限公司 | A kind of building yard Bar Anchorage robot |
CN109316113A (en) * | 2018-12-11 | 2019-02-12 | 何冬冰 | A kind of separable toilet sitting frame device |
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CN112570056A (en) * | 2020-11-17 | 2021-03-30 | 衡阳师范学院 | Lifting platform for college physics experiments |
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CN108343263A (en) * | 2018-02-05 | 2018-07-31 | 湖北工业大学 | A kind of supporting frame with steel structure |
CN108492635A (en) * | 2018-03-30 | 2018-09-04 | 潍坊护理职业学院 | A kind of movable type nursing teaching teaching aid |
CN108669614A (en) * | 2018-04-10 | 2018-10-19 | 杨冰璐 | A kind of lead screw driving lifting squash type mashed potatoes processing unit (plant) |
CN108711315A (en) * | 2018-04-27 | 2018-10-26 | 伍伟权 | A kind of Art undergraduate device for the bore hole 3D technology that portable is comprehensive |
CN108718985A (en) * | 2018-05-10 | 2018-11-02 | 岑立强 | A kind of planting tree auxiliary device |
CN108671976A (en) * | 2018-06-28 | 2018-10-19 | 祁建成 | A kind of multi-function experimental rig |
CN108837409A (en) * | 2018-06-29 | 2018-11-20 | 李汉昕 | A kind of physical training indoor body-building device |
CN108756363A (en) * | 2018-07-02 | 2018-11-06 | 合肥市春华起重机械有限公司 | A kind of domestic small stereo garage |
CN109281476A (en) * | 2018-08-31 | 2019-01-29 | 君恒咨询有限公司 | A kind of building yard Bar Anchorage robot |
CN109281476B (en) * | 2018-08-31 | 2021-05-14 | 广东博智林机器人有限公司 | Reinforcing bar anchor robot for construction site |
CN109316113A (en) * | 2018-12-11 | 2019-02-12 | 何冬冰 | A kind of separable toilet sitting frame device |
CN109779031A (en) * | 2019-03-07 | 2019-05-21 | 重庆恩倍克科技有限公司 | A kind of stable type assembled arthitecutral structure |
CN111383483A (en) * | 2020-04-03 | 2020-07-07 | 青岛酒店管理职业技术学院 | Multimedia teaching device is used in hotel management teaching |
CN112570056A (en) * | 2020-11-17 | 2021-03-30 | 衡阳师范学院 | Lifting platform for college physics experiments |
CN112974887A (en) * | 2021-03-18 | 2021-06-18 | 湖南合创机械铸造有限公司 | Numerical control gantry boring and milling machine |
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Legal Events
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180112 Termination date: 20200705 |