CN107377037B - A kind of experimental bench - Google Patents
A kind of experimental bench Download PDFInfo
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- CN107377037B CN107377037B CN201710880178.3A CN201710880178A CN107377037B CN 107377037 B CN107377037 B CN 107377037B CN 201710880178 A CN201710880178 A CN 201710880178A CN 107377037 B CN107377037 B CN 107377037B
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- gear
- rotation axis
- shaft
- groove
- test tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/02—Laboratory benches or tables; Fittings therefor
Abstract
A kind of experimental bench,It is inconvenient to use when carrying out chemical experiment effectively to solve existing experimental bench,It occasions a delay to experiment,The problems such as influencing experiment effect and accuracy,It includes panel,Table leg is fixed on the downside of panel,Rack for test tube is fixed on the panel,Rack for test tube includes frame body,The control cabinet being provided in frame body below lower clapboard,Horizontally slidable rotation axis is rotatably connected in control cabinet,Rotation axis outer circle is provided with different shape block,Different shape block includes spaced first protrusion successively,First partes glabra,First groove,Second partes glabra,Second protrusion,Second groove and third partes glabra,Structure novel,It is ingenious in design,The height of bottom in rack for test tube on experimental bench can be controlled by the rotation of shaft,So that there is the different situation of height and position in test tube upper end,Test tube is picked and placeed so as to convenient.
Description
Technical field
The invention belongs to field of experiment equipment, more particularly to a kind of experimental bench.
Background technology
Chemistry is recognized us and is played an important role using substance, and universe is material composition, chemical then be the mankind
One of main method and means of understanding and the transformation material world, it is a subject with a long history and dynamic, with
Human progress and the relationship of social development are very close, it be exactly social civilization important symbol.
From the primitive society started with fire, to the modern society for using various manmade materials, the mankind all enjoy chemistry into
Fruit, the life of the mankind can be continuously improved and improve, and chemical contribution has played important role wherein.
Chemistry is important one of basic science, is a subject based on experiment, with physics.Biology,
In the interpenetrating of the subjects such as geography, astronomy, rapid development is obtained, has also pushed Other subjects and the hair of technology
Exhibition.
Chemical experiment is carried out on bench for chemistry experiment, solid usually on experimental bench due to often needing to use test tube
Surely there is rack for test tube, rack for test tube is the testing equipment of each experimental bench indispensability, and rack for test tube, test tube are fixed on existing experimental bench
It is divided into three layers, test tube is put into grid hole, and undermost grid hole is less than the diameter of test tube, and undermost grid hole supports test tube
It rises, so as to which test tube is fixed in rack for test tube.
In actual use, since rack for test tube is fixed on experimental bench, and the length of test tube is the same, carry out compared with
During the chemical experiment of large size, need using a large amount of test tube, a large amount of test tube is placed on rack for test tube, it is desirable to quickly and easily be taken
Go out test tube, be very troublesome, be mostly to arrange test tube according to the sequence of experiment now, it then will be empty after use
Test tube be placed in another rack for test tube, but on an experimental bench set two rack for test tubes, the space bit of experimental bench
Limit is equipped with, two rack for test tubes occupy a large amount of space, are unfavorable for being smoothed out for chemical experiment, so needing to design a kind of new
Experimental bench solves the problems, such as this.
Invention content
For the above situation, the defects of to overcome the prior art, the present invention provides a kind of experimental bench, effectively solves existing
Some experimental benches are inconvenient to use when carrying out chemical experiment, occasion a delay on experiment, influence experiment effect and accuracy etc. and ask
Topic.
Its technical solution solved is that the present invention includes panel, is fixed with table leg on the downside of panel, is fixed on the panel
Rack for test tube, rack for test tube include frame body, and upper spacer, middle partition board and lower clapboard are fixed on frame body, is evenly distributed on upper spacer and middle partition board
Have multiple corresponding big holes up and down, offer on lower clapboard with the one-to-one small sircle hole of big hole, be provided on lower clapboard
With the one-to-one supporting block of big hole, supporting block vertical sliding in lower clapboard, small sircle hole is arranged in supporting block, is formed small
Circular hole position can up and down adjustment structure；
The control cabinet being provided in frame body below lower clapboard is rotatably connected in control cabinet horizontally slidable
Rotation axis, rotation axis outer circle are provided with different shape block, and supporting block contacts the structure for forming supporting block oscilaltion with different shape block；
Different shape block includes spaced first protrusion, the first partes glabra, the first groove, the second partes glabra, second successively
Protrusion, the second groove and third partes glabra, the first groove and the second groove are identical and be circumferential groove, and the second protrusion is semicircle
All protrusions, the first protrusion are circumferential protrusion；
Rotation axis includes spaced apart first rotation axis and the second rotation axis, the first rotation axis and the second rotation axis it is outer
Contour line is identical, and the first rotation axis right end ball strand has a first connecting rod, and the right end of first connecting rod is hinged with the first turntable, and first
Connecting rod is hinged on the edge side of the first turntable, and the first turntable is coaxially connected with first bevel gear, and the second rotation axis right end ball strand has
Second connecting rod, the right end of second connecting rod are hinged with the second turntable, and second connecting rod is hinged on the edge side of the second turntable, the second turntable
Be coaxially connected with second bevel gear, horizontally slidable shaft be additionally provided in control cabinet, be provided in shaft third hand tap gear and
4th bevel gear, third hand tap gear are engaged with first bevel gear and second bevel gear, third hand tap gear and the 4th bevel gear it is interior
The shaft outer rim of side is equipped with the groove of wedge shape, and the vertical edges of groove are equipped with circular hole, the first spring is equipped in circular hole inwardly, the
The first spring spindle is fixed on the outside of one spring, the first roller, the first roller and are fixed on the outside of the first spring spindle
Third hand tap gear and the inner face of the 4th bevel gear are in contact, and form third hand tap gear and the 4th bevel gear and turn when shaft rotates forward
Static structure when moving, inverting；
First gear is slidably provided in first rotation axis, the second tooth is slidably provided in the second rotation axis
The position of wheel, first gear and second gear does not correspond to, and third gear, the inside shaft outer rim of third gear are additionally provided in shaft
Groove equipped with wedge shape, the vertical edges of groove are equipped with circular hole, second spring, the outside of second spring are equipped in circular hole inwardly
Second spring mandril is fixed with, the second roller, the second roller and third gear inner face are fixed on the outside of second spring mandril
Be in contact, form third gear be static when shaft rotates forward, the structure that rotates when inverting；
Shaft is slidably stretched out on the outside of control cabinet, and shaft is slided composition third gear on frame body and nibbled with first gear
Conjunction, first bevel gear and second bevel gear are engaged with third hand tap gear and third gear is engaged with second gear, the first cone tooth
The structure that wheel and second bevel gear are engaged with the 4th bevel gear.
Structure novel of the present invention, it is ingenious in design, bottom in rack for test tube can be controlled on experimental bench by the rotation of shaft
Highly, so that the different situation of height and position occurs in test tube upper end, test tube is picked and placeed so as to convenient, is accelerated in reality
The speed done and tested on platform is tested, reduces the input of rack for test tube, while also saves the space of experimental bench, accelerates the effect of experiment
Rate.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is rack for test tube structure diagram of the present invention.
Fig. 3 is rack for test tube sectional view of the present invention.
Fig. 4 overlooks partial view for control cabinet of the present invention.
Fig. 5 is rotation axis front view of the present invention.
Fig. 6 is rotation axis axis side view of the present invention.
Fig. 7 is shaft of the present invention and third hand tap gear, the 4th bevel gear attachment structure schematic diagram.
Fig. 8 is shaft of the present invention and third gear connection structure schematic diagram.
Fig. 9 is A portions enlarged diagram in Fig. 1 of the present invention.
Figure 10 is fixed on structure diagram on frame body for shaft of the present invention.
Specific embodiment
The specific embodiment of the present invention is described in further details below in conjunction with attached drawing 1-10.
It is provided by Fig. 1-10, the present invention includes panel 1, and 1 downside of panel is fixed with table leg 2, which is characterized in that the panel
Be fixed with rack for test tube 3 on 1, rack for test tube 3 includes frame body 4, and upper spacer 5, middle partition board 6 and lower clapboard 7 are fixed on frame body 4, on every
Multiple corresponding big holes 8 up and down are evenly equipped on plate 5 and middle partition board 6, are offered on lower clapboard 7 one-to-one with big hole 8
Small sircle hole 9 is provided on lower clapboard 7 and is slided vertically in lower clapboard 7 with 8 one-to-one supporting block 10 of big hole, supporting block 10
Dynamic, small sircle hole 9 is arranged in supporting block 10, form 9 position of small sircle hole can up and down adjustment structure；
The control cabinet 11 positioned at 7 lower section of lower clapboard is provided in frame body 4, being rotatably connected in control cabinet 11 can be horizontal
The rotation axis 12 of slip, 12 outer circle of rotation axis are provided with different shape block 13, and supporting block 10 is contacted with different shape block 13 forms supporting block 10
The structure of oscilaltion；
It is smooth that different shape block 13 includes spaced first protrusion 14, the first partes glabra 15, the first groove 16, second successively
Portion 17, the second protrusion 18, the second groove 19 and third partes glabra 20, the first groove 16 and the second groove 19 are identical and be circumference
Groove, the second protrusion 18 are semi-circumference protrusion, and the first protrusion 14 is circumferential protrusion；
Rotation axis 12 includes spaced apart first rotation axis, 21 and second rotation axis 22, the first rotation axis 21 and second turn
The outer contour of moving axis 22 is identical, and 21 right end ball of the first rotation axis strand has first connecting rod 23, the right end hinge of first connecting rod 23
The first turntable 24 is connected to, first connecting rod 23 is hinged on the edge side of the first turntable 24, and the first turntable 24 is coaxially connected with the first cone
Gear 25,22 right end ball of the second rotation axis strand have a second connecting rod 26, and the right end of second connecting rod 26 is hinged with the second turntable 27, and second
Connecting rod 26 is hinged on the edge side of the second turntable 27, and the second turntable 27 is coaxially connected with second bevel gear 28, is gone back in control cabinet 11
Equipped with horizontally slidable shaft 29,30 and the 4th bevel gear 31 of third hand tap gear, third hand tap gear 30 are provided in shaft 29
It is engaged with first bevel gear 25 and second bevel gear 28,29 outer rim of shaft of the inside of 30 and the 4th bevel gear 31 of third hand tap gear
Groove equipped with wedge shape, the vertical edges of groove are equipped with circular hole, the first spring 32 are equipped in circular hole inwardly, the first spring 32
Outside is fixed with the first spring spindle 33, and the outside of the first spring spindle 33 is fixed with the first roller 34, the first roller 34 and
The inner face of 30 and the 4th bevel gear 31 of third hand tap gear is in contact, and forms 30 and the 4th bevel gear 31 of third hand tap gear in shaft 29
Static structure when rotating, inverting during rotating forward；
First gear 35 is slidably provided in first rotation axis 21, is slidably provided in the second rotation axis 22
The position of two gears 36, first gear 35 and second gear 36 does not correspond to, and third gear 37, third gear are additionally provided in shaft 29
37 29 outer rim of inside shaft is equipped with the groove of wedge shape, and the vertical edges of groove are equipped with circular hole, second is equipped in circular hole inwardly
Spring 38, the outside of second spring 38 are fixed with second spring mandril 39, and the outside of second spring mandril 39 is fixed with the second rolling
Column 40, the second roller 40 are in contact with 37 inner face of third gear, and it is static, anti-when shaft 29 rotates forward to form third gear 37
The structure rotated when turning；
Shaft 29 slidably stretches out the outside of control cabinet 11, and shaft 29 slides composition third gear 37 and the on frame body 4
One gear 35 engages, first bevel gear 25 and second bevel gear 28 is engaged with third hand tap gear 30 and third gear 37 and second
The structure that gear 36 engages, first bevel gear 25 and second bevel gear 28 are engaged with the 4th bevel gear 31.
It trickles down to reduce chemical experiment medicament and panel 1 is damaged, the panel 1 uses PB mesa of plastic steel.
In order to be rotated while shaft 29, the 4th gear 41 is provided in shaft 29, the 4th gear 41 is engaged with rack 42,
4th gear 41 engages always with the holding of rack 42.
In order to realize 22 synchronous rotating shaft 29 of the first rotation axis 21 or the second rotation axis, two the first adjacent rotation axis 21
Second rotation axis 22 adjacent with two is connected through chain drive 43.
In order to ensure the stationarity during rotation of rotation axis 12, guide groove 44, rotation axis 12 are provided in the control cabinet 11
It is slidable to be inserted into guide groove 44, compression spring 45 is equipped in guide groove 44,45 right end of compression spring is in contact with rotation axis 12.
In order to realize better effect, the rotation axis 12 is connect with first gear 35 and second gear 36 through spline, structure
The structure that can be slided in rotation axis 12 into first gear 35 and second gear 36, control cabinet 11 is interior to be equipped with multiple guide pads 46,
The lower end of first gear 35 and second gear 36 is placed in the groove of guide pad 46, forms first gear 35 when rotation axis 12 is slided
Or the structure that second gear 36 is static.
In order to ensure stationarity that supporting block 10 is contacted with rotation axis 12,10 lower section of supporting block is fixed with push rod 47,
47 lower end of push rod is fixed with goalpost 48, and goalpost 48 is contacted with rotation axis 12, forms the horizontal slip of rotation axis 12 and rotational support block
The structure of 10 oscilaltions.
In order to realize the fixation of shaft 29, the frame body 4 is equipped with the locating slot 49 for being located at 29 outside of shaft, in shaft 29
Equipped with the positioning head 50 stretched out outside shaft 29, positioning head 50 forms shaft 29 with the cooperation of locating slot 49 and is fixed on frame body 4
Structure, the interior fixture block 51 for being equipped with connection positioning head 50 of shaft 29, forms positioning head 50 and stretches out the fixed structure in 29 position of shaft, block
Block 51 is fixed on through third spring 52 in shaft 29, and positioning head 50 is ejected the knot outside shaft 29 by composition third spring 52 always
Structure.
In the use of the present invention, the initial position of rotation axis 12 is identical with position shown in Fig. 5, when the test tube that needs pick and place
During positioned at the top of the first rotation axis 21, shaft 29 is pushed so that third hand tap gear 30 bores tooth with first bevel gear 25 and second
28 engagement of wheel, third gear 37 engages with first gear 35, rotates clockwise shaft 29, outside the inside shaft 29 of third gear 37
Edge is equipped with the groove of wedge shape, and the vertical edges of groove are equipped with circular hole, second spring 38, second spring 38 are equipped in circular hole inwardly
Outside be fixed with second spring mandril 39, the outside of second spring mandril 39 is fixed with the second roller 40, the second roller 40 with
37 inner face of third gear is in contact, and forms the structure rotated when third gear 37 is static, reversion when shaft 29 rotates forward, turn
Third gear 37 is stationary when axis 29 rotates clockwise, and third hand tap gear 30 engages first bevel gear 25 and second bevel gear
28, first bevel gear 25 is coaxially arranged with the first turntable 24, and 24 edge side of the first turntable is hinged first connecting rod 23, first connecting rod 23
It is twisted with 21 ball of the first rotation axis, the rotation of the first turntable 24 drives the first rotation axis 21 is horizontal to slide, and second bevel gear 28 is coaxially set
The second turntable 27 is equipped with, 27 edge side of the second turntable is hinged second connecting rod 26, and 26 and second rotation axis of second connecting rod, 22 ball twists, the
The rotation of two turntables 27 drives the second rotation axis 22 is horizontal to slide, and first bevel gear 25 and second bevel gear 28 are turned on the contrary, first
21 and second rotation axis of rotation axis 22 is horizontal to be slided reversely on the contrary, 21 level of the first rotation axis slides into the test tube position for needing to take out
In the top of the first protrusion 14, the first rotation axis 21 and the horizontal slip of the second rotation axis 22 are reversely on the contrary, positioned at the second rotation axis
The 22 tops test tube adjacent with needing taking-up test tube is in the first groove 16 or the second groove 19, so as to form difference of height.
Shaft 29 is rotated counterclockwise, third hand tap gear 30 is static when shaft 29 rotates counterclockwise, and shaft 29 turns counterclockwise
Dynamic that third gear 37 is driven to rotate, third gear 37 engages first gear 35, and first gear 35 is rotated with third gear 37,
First gear 35 is connect with 21 spline of the first rotation axis, and first gear 35 drives the first rotation axis 21 to rotate, and needs the examination taken out
The both sides test tube of pipe is also kept in the first groove 16 and the second groove 19, and the test tube at the test tube taken out both sides interval is needed to exist
It is located in the second protrusion 18 in first rotation axis 21, the second protrusion 18 is semi-circumference protrusion, and the first rotation axis 21 rotates semi-circumference
When, the test tube at test tube both sides interval taken out is needed to be on 21 periphery of the first rotation axis, needs the test tube taken out notable
Protrusion, it may be convenient to the tube hold-down that takes out will be needed.
When the test tube that takes out is needed to be located at the second 22 top of rotation axis, push shaft 29 so that the 4th bevel gear 31 and
First bevel gear 25 and second bevel gear 28 engage, and third gear 37 is engaged with second gear 36, rotate clockwise shaft 29, the
29 outer rim of inside shaft of four bevel gears 31 is equipped with the groove of wedge shape, and the vertical edges of groove are equipped with circular hole, pacify in circular hole inwardly
Equipped with the first spring 32, the outside of the first spring 32 is fixed with the first spring spindle 33, is fixed on the outside of the first spring spindle
First roller 34, the first roller 34 are in contact with the inner face of 30 and the 4th bevel gear 31 of third hand tap gear, form the 4th cone tooth
The structure static when rotating, inverting when shaft 29 rotates forward of wheel 31, shaft 29 drive the 4th bevel gear 31 to rotate clockwise, third
29 outer rim of inside shaft of the inside third gear 37 of gear 37 is equipped with the groove of wedge shape, and the vertical edges of groove are equipped with circle inwardly
Hole is equipped with second spring 38 in circular hole, and the outside of second spring 38 is fixed with second spring mandril 39, second spring mandril 39
Outside be fixed with the second roller 40, the second roller 40 is in contact with 37 inner face of third gear, forms third gear 37 and is turning
The structure that rotates when axis 29 is static, reversion when rotating forward, third gear 37 is stationary when shaft 29 rotates clockwise, the 4th cone
Gear 31 engages first bevel gear 25 and second bevel gear 28, and first bevel gear 25 is coaxially arranged with the first turntable 24, first turn
24 edge side of disk is hinged first connecting rod 23, and 23 and first rotation axis of first connecting rod, 21 ball twists, and the rotation of the first turntable 24 drives first
Rotation axis 21 is horizontal to be slided, and second bevel gear 28 is coaxially arranged with the second turntable 27, and 27 edge side of the second turntable hinged second connects
Bar 26,26 and second rotation axis of second connecting rod, 22 ball twist, and the rotation of the second turntable 27 drives the second rotation axis 22 is horizontal to slide, and first
Bevel gear 25 and second bevel gear 28 turn on the contrary, the first rotation axis 21 and the second rotation axis 22 is horizontal slides reversely on the contrary, the
Two rotation axis, 22 level slides into the top that the test tube taken out is needed to be located at the first protrusion 14, the first rotation axis 21 and the second rotation
Axis 22 is horizontal to be slided reversely on the contrary, test tube adjacent with needing taking-up test tube above the first rotation axis 21 is in the first groove
16 or second in groove 19, so as to form difference of height.
Shaft 29 is rotated counterclockwise, the 4th bevel gear 31 is static when shaft 29 rotates counterclockwise, and shaft 29 turns counterclockwise
Dynamic that third gear 37 is driven to rotate, third gear 37 engages second gear 36, and second gear 36 is rotated with third gear 37,
Second gear 36 is connect with 22 spline of the second rotation axis, and second gear 36 drives the second rotation axis 22 to rotate, and needs the examination taken out
The both sides test tube of pipe is also kept in the first groove 16 and the second groove 19, and the test tube at the test tube taken out both sides interval is needed to exist
It is located in the second protrusion 18 in second rotation axis 22, the second protrusion 18 is semi-circumference protrusion, and the second rotation axis 22 rotates semi-circumference
When, the test tube at test tube both sides interval taken out is needed to be on 22 periphery of the second rotation axis, needs the test tube taken out notable
Protrusion, it may be convenient to the tube hold-down that takes out will be needed.
Multiple first rotation axis 21 are connected through chain drive 43, and multiple second rotation axis 22 are connected through chain drive 43, can
Ensure the synchronism of multiple first rotation axis 21 and multiple second rotation axis 22, one of shaft 29 is slidably fixed on
On frame body 4, shaft 29 is equipped with the 4th gear 41, and 41 lower section of the 4th gear is engaged with rack 42, forms the shaft for stretching out babinet
29 rotations drive remaining shaft 29 to rotate, the second tooth in 35 and second rotation axis 22 of first gear in the first rotation axis 21
36, wheel needs to set simultaneously with slide in multiple shafts 29 one, and remaining first rotation axis 21 does not need to setting first
Gear 35, remaining second rotation axis 22 do not need to setting second gear 36, and slidable one is provided with the in shaft 29
Four bevel gears 31, remaining shaft 29 do not need to the 4th bevel gear 31 of setting.
In shaft 29 slidable one on frame body 4 can pull need cooperation position, in shaft 29 mark on engage
Station location marker, it is convenient that the position of engagement is adjusted, when adjusting, pull shaft 29, positioning head 50 is bulb shape, is being pulled
It is bounced back in shaft 29 under the pressure of frame body 4 during shaft 29, when reaching locating slot 49, in spring under effect, with positioning
Slot 49 coordinates, so as to fulfill the positioning of shaft 29.
Compared with prior art, the present invention it has the advantages that：1）Being provided in the lower clapboard 7 of rack for test tube 3 can rise
The supporting block 10 of drop realizes the lifting of test tube by the lifting of supporting block 10；2）Institute can be completed using an operating mechanism
The lifting of test tube is stated, it is convenient and practical；3）Operating method only needs to pull and positive and negative rotation, easy to operate, is easily mastered and uses；
4）The same horizontally-arranged two adjacent test tubes for taking out test tube is needed to be in lowest part, with needing taking-up test tube with two of horizontally-arranged interval
Test tube is on 29 axis periphery of shaft, with taking-up test tube is needed to be in lowest part with two test tubes of riser, needs what is taken out
Test tube position is in highest point, and the gas defence that test tube picks and places is faster, more efficient, accelerates the progress of experiment, and is not in beat
The mixing of solution occurs for random test tube, is conducive to the arrangement in laboratory：5）The occupation rate in space on experimental bench is reduced, experimental bench
Using more efficiently；6）Even if solution occurs during the experiment to trickle down on panel 1, the damage of panel 1 will not be caused, it is energy saving
Environmental protection.
Structure novel of the present invention, it is ingenious in design, bottom in rack for test tube can be controlled on experimental bench by the rotation of shaft
Highly, so that the different situation of height and position occurs in test tube upper end, test tube is picked and placeed so as to convenient, is accelerated in reality
The speed done and tested on platform is tested, reduces the input of rack for test tube, while also saves the space of experimental bench, accelerates the effect of experiment
Rate.
Claims (7)
1. a kind of experimental bench, including panel（1）, which is characterized in that the panel（1）Downside is fixed with table leg（2）, feature exists
In the panel（1）On be fixed with rack for test tube（3）, rack for test tube（3）Including frame body（4）, frame body（4）On be fixed with upper spacer
（5）, middle partition board（6）And lower clapboard（7）, upper spacer（5）With middle partition board（6）On be evenly equipped with it is multiple up and down corresponding big holes（8）,
Lower clapboard（7）On offer and big hole（8）One-to-one small sircle hole（9）, lower clapboard（7）On be provided with and big hole（8）
One-to-one supporting block（10）, supporting block（10）In lower clapboard（7）Interior vertical sliding, small sircle hole（9）It is arranged on supporting block
（10）On, form small sircle hole（9）Position can up and down adjustment structure；
Frame body（4）It is inside provided with positioned at lower clapboard（7）The control cabinet of lower section（11）, control cabinet（11）Inside being rotatably connected with can
The rotation axis that level is slided（12）, rotation axis（12）Outer circle is provided with different shape block（13）, supporting block（10）With different shape block（13）It connects
It touches and forms supporting block（10）The structure of oscilaltion；
Different shape block（13）Including spaced first protrusion successively（14）, the first partes glabra（15）, the first groove（16）, second
Partes glabra（17）, second protrusion（18）, the second groove（19）With third partes glabra（20）, the first groove（16）With the second groove
（19）It is identical and be circumferential groove, the second protrusion（18）For semi-circumference protrusion, the first protrusion（14）For circumferential protrusion；
Rotation axis（12）Including spaced apart first rotation axis（21）With the second rotation axis（22）, the first rotation axis（21）With
Two rotation axis（22）Outer contour it is identical, the first rotation axis（21）Right end ball strand has first connecting rod（23）, first connecting rod
（23）Right end be hinged with the first turntable（24）, first connecting rod（23）It is hinged on the first turntable（24）Edge side, the first turntable
（24）It is coaxially connected with first bevel gear（25）, the second rotation axis（22）Right end ball strand has second connecting rod（26）, second connecting rod
（26）Right end be hinged with the second turntable（27）, second connecting rod（26）It is hinged on the second turntable（27）Edge side, the second turntable
（27）It is coaxially connected with second bevel gear（28）, control cabinet（11）Inside it is additionally provided with horizontally slidable shaft（29）, shaft（29）
On be provided with third hand tap gear（30）With the 4th bevel gear（31）, third hand tap gear（30）With first bevel gear（25）With the second cone
Gear（28）Engagement, third hand tap gear（30）With the 4th bevel gear（31）Inside shaft（29）Outer rim is equipped with the recessed of wedge shape
Slot, the vertical edges of groove are equipped with circular hole, the first spring are equipped in circular hole inwardly（32）, the first spring（32）Outside fix
There is the first spring spindle（33）, the first spring spindle（33）Outside be fixed with the first roller（34）, the first roller（34）With
Third hand tap gear（30）With the 4th bevel gear（31）Inner face be in contact, form third hand tap gear（30）With the 4th bevel gear（31）
In shaft（29）Static structure when rotating, inverting during rotating forward；
First rotation axis（21）On be slidably provided with first gear（35）, the second rotation axis（22）On be slidably provided with
Second gear（36）, first gear（35）And second gear（36）Position do not correspond to, shaft（29）On be additionally provided with third gear
（37）, third gear（37）Inside shaft（29）Outer rim is equipped with the groove of wedge shape, and the vertical edges of groove are equipped with circular hole inwardly,
Second spring is installed in circular hole（38）, second spring（38）Outside be fixed with second spring mandril（39）, second spring top
Bar（39）Outside be fixed with the second roller（40）, the second roller（40）With third gear（37）Inner face is in contact, and forms the
Three gears（37）In shaft（29）The structure that rotates when being static, reversion during rotating forward；
Shaft（29）It is slidable to stretch out control cabinet（11）Outside, shaft（29）In frame body（4）Upper slide forms third gear
（37）With first gear（35）Engagement, first bevel gear（25）And second bevel gear（28）With third hand tap gear（30）Engagement and
Third gear（37）With second gear（36）Engagement, first bevel gear（25）And second bevel gear（28）With the 4th bevel gear（31）
The structure of engagement.
A kind of 2. experimental bench according to claim 1, which is characterized in that the shaft（29）On be provided with the 4th gear
（41）, the 4th gear（41）It is engaged with rack（42）, the 4th gear（41）Always with rack（42）Keep engagement.
A kind of 3. experimental bench according to claim 1, which is characterized in that described two the first adjacent rotation axis（21）'s
Second rotation axis adjacent with two（22）Through chain drive（43）Connection.
A kind of 4. experimental bench according to claim 1, which is characterized in that the control cabinet（11）Inside it is provided with guide groove
（44）, rotation axis（12）It is slidable to be inserted into guide groove（44）It is interior, guide groove（44）It is interior to be equipped with compression spring（45）, compression spring（45）Right end
With rotation axis（12）It is in contact.
A kind of 5. experimental bench according to claim 1, which is characterized in that the rotation axis（12）With first gear（35）With
Second gear（36）It is connected through spline, forms first gear（35）And second gear（36）It can be in rotation axis（12）The knot of upper slip
Structure, control cabinet（11）It is interior to be equipped with multiple guide pads（46）, first gear（35）And second gear（36）Lower end be placed in guide pad
（46）Groove in, form rotation axis（12）First gear during slip（35）Or second gear（36）Static structure.
A kind of 6. experimental bench according to claim 1, which is characterized in that the supporting block（10）Lower section is fixed with push rod
（47）, push rod（47）Lower end is fixed with goalpost（48）, goalpost（48）With rotation axis（12）Contact forms rotation axis（12）Level is sliding
Dynamic and rotational support block（10）The structure of oscilaltion.
A kind of 7. experimental bench according to claim 1, which is characterized in that the frame body（4）It is equipped with and is located at shaft（29）
The locating slot in outside（49）, shaft（29）Interior be equipped with stretches out shaft（29）External positioning head（50）, positioning head（50）With positioning
Slot（49）Cooperation forms shaft（29）It is fixed on frame body（4）On structure, shaft（29）It is interior to be equipped with connection positioning head（50）Card
Block（51）, form positioning head（50）Stretch out shaft（29）The fixed structure in position, fixture block（51）Through third spring（52）It is fixed on
Shaft（29）It is interior, form third spring（52）Always by positioning head（50）Eject shaft（29）External structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710880178.3A CN107377037B (en) | 2017-09-26 | 2017-09-26 | A kind of experimental bench |
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| CN201710880178.3A CN107377037B (en) | 2017-09-26 | 2017-09-26 | A kind of experimental bench |
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| CN107377037A CN107377037A (en) | 2017-11-24 |
| CN107377037B true CN107377037B (en) | 2018-06-29 |
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| CN110237883B (en) * | 2019-06-29 | 2021-10-08 | 嘉兴新博信息科技有限公司 | Combined operating equipment for biochemical experiment teaching |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5224585A (en) * | 1992-04-10 | 1993-07-06 | Brigham & Women's Hospital | Carrier for coded containers |
| CN2810594Y (en) * | 2005-07-15 | 2006-08-30 | 方艳玲 | Rack for test tubes |
| CN203379912U (en) * | 2013-07-31 | 2014-01-08 | 朱亮 | Chemical experiment table |
| CN204429351U (en) * | 2015-01-30 | 2015-07-01 | 滨州学院 | A kind of bench for chemistry experiment |
| CN104907116A (en) * | 2015-07-02 | 2015-09-16 | 济南大学 | Fetching device of test tubes for cell cultivation |
| CN205550355U (en) * | 2016-04-18 | 2016-09-07 | 西安交通大学第一附属医院 | Multi -functional test tube rack |
| CN206082620U (en) * | 2016-10-25 | 2017-04-12 | 商丘师范学院 | Multi -functional test tube rack |
| CN106703985A (en) * | 2016-12-01 | 2017-05-24 | 黑龙江米屠科技有限公司 | Double-side power output structure and robot engine with double-side power output structure |
| CN106944174A (en) * | 2017-05-28 | 2017-07-14 | 湖北职业技术学院 | A kind of portable rack for test tube |
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