A kind of plant material grinding device for DNA extraction operation
Technical field
The present invention relates to a kind of grinding device, specially a kind of plant material grinding device for DNA extraction operation.
Background technique
Plant tissue grinding can separate initial cell from vitro tissue, can also divide from a large amount of cell masses of acquisition
From subcellular component.Plant tissue grinding device can be used for extracting DNA, RNA and protein, also be used to reinforce the production of other cells
The recycling of product.
Existing plant tissue grinding device mainly includes two classes, and one kind is hand-ground device, and another kind of is electric grinding mortar
Mill apparatus.Hand-ground device is time-consuming and laborious, and grinding efficiency is low, has been eliminated substantially at present, and electric grinding device is due to saving
The efficiency of Shi Shengli, grinding are also high, become the mainstream that current laboratory uses;At present using electric grinding device to plant group
Knit when being ground, be difficult not only to guarantee to grind crushing effect and guarantee that sample is constantly in low-temperature condition again, especially extract RNA,
When the thermally sensitive substances such as enzyme, the control of low-temperature condition seems particularly critical.
Summary of the invention
In order to solve the deficiencies in the prior art, the present invention provides a kind of vegetable material for DNA extraction operation
Dismembyator, vdiverse in function, easy to operate, body-building effect is good.
The present invention provides as shown in Figure 1-Figure 3, a kind of plant material grinding device for DNA extraction operation, including bracket,
Cooling body, grinding rod and mortar;
Bracket includes pedestal, telescopic supporting rod and support plate, and base top surrounding is evenly arranged with telescopic supporting rod, is stretched
The top of support rod is connected with a support plate jointly;
The top center of support plate is provided with the up and down reciprocatingly mechanism through support plate, is up and down reciprocatingly connected with and grinds in mechanism
Frotton is connected with grinding head on grinding rod;
It is provided with expansion bracket in the middle part of base top surface, articles holding table is provided on expansion bracket, is provided on articles holding table for placing
The groove of mortar is provided with clamp system in groove;
Cooling body includes that condenser pipe, circulating pump and liquid nitrogen storage storehouse, condenser pipe are set in articles holding table, and surround mortar
Setting, condenser pipe are connected to by circulating pump with liquid nitrogen storage storehouse, and liquid nitrogen storage storehouse is set on pedestal.
Preferably, up and down reciprocatingly mechanism includes shielded box, motor, cam, driven wheel, link block, the first spring and connection
Bar, shielded box are set in support plate, and motor is provided in shielded box, are connected with cam on the output shaft of motor, in shielded box
It is additionally provided with the circular driven wheel that can be moved with cam engagement, link block is connected with below driven wheel, is connected on link block
Have in shielded box and support plate and the connecting rod extended downwardly, connecting rod between link block and the interior bottom of shielded box
It is arranged with the first spring.
Preferably, it is connected through a screw thread between connecting rod and grinding rod, is connected through a screw thread between grinding rod and grinding head.
Preferably, connecting rod bottom is provided with the first connecting plate, and top of grinding rod is provided with the second connecting plate, the first connection
It is bolted between plate and the second connecting plate;Bottom of grinding rod is provided with third connecting plate, and the is provided at the top of grinding head
Four connecting plates are bolted between third connecting plate and the 4th connecting plate.
Preferably, clamp system includes second spring and arc panel, and groove inner wall is provided with the corresponding second spring of multiple groups,
Arc panel is connected in second spring, groove top is provided with multiple elastic snap-gauges.
Preferably, it is provided with soft rubber mortar lid on mortar, soft rubber mortar covers to be provided with and can accommodate grinding rod and wear
The through-hole crossed.
Preferably, flow controller is provided on condenser pipe.
Compared with prior art, the invention has the following advantages:
Structure of the invention is reasonable, easy to use, so that grinding rod and grinding head is pumped by up and down reciprocatingly device,
To grind repeatedly to vegetable material in mortar, grinding effect is good;Vegetable material is set to be constantly in low temperature ring by cooling body
In border, heating in grinding is avoided to impact the DNA extraction in vegetable material.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the plant material grinding device for DNA extraction operation of the present invention;
Fig. 2 is that up and down reciprocatingly the structure of mechanism is put in a kind of plant material grinding device for DNA extraction operation of the present invention
Big figure;
Fig. 3 is the schematic enlarged-scale view of clamping device in a kind of plant material grinding device for DNA extraction operation of the present invention.
In figure: 1, grinding rod;2, mortar;3, pedestal;4, telescopic supporting rod;5, support plate;6, grinding head;7, expansion bracket;
8, articles holding table;9, condenser pipe;10, circulating pump;11, liquid nitrogen storage storehouse;12, shielded box;13, motor;14, cam;15, driven
Wheel;16, link block;17, the first spring;18, connecting rod;19, arc panel;20, second spring;21, elastic snap-gauge.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
But the present invention is not limited to these Examples.
As shown in Figure 1-Figure 3, a kind of plant material grinding device for DNA extraction operation, including bracket, cooling body,
Grinding rod 1 and mortar 2, bracket are in low for carrying entire dismembyator, the vegetable material that cooling body is used to make to need to grind
Temperature state avoids the damage caused to vegetable material of generating heat due to process of lapping, and grinding rod 1 is for connecting grinding head 6, mortar 4
Place is provided for the grinding of vegetable material;
Bracket includes pedestal 3, telescopic supporting rod 4 and support plate 5, and 3 top surrounding of pedestal is evenly arranged with telescopic supporting rod
4, the top of telescopic supporting rod 4 is connected with a support plate 5 jointly, and telescopic supporting rod 4 is by interior bar, outer tube and fixing bolt
The simple and mechanical retractable support structure of composition either hydraulically extensible support rod, telescopic supporting rod 4 are used for according to being ground
The amount of vegetable material adjusts the height of grinding rod 1 and grinding head 6;
The top center of support plate 5 is provided with the up and down reciprocatingly mechanism through support plate 5, is up and down reciprocatingly connected in mechanism
Grinding rod 1 is connected with grinding head 6 on grinding rod 1, up and down reciprocatingly mechanism pumping for realizing grinding head 6, thus
Make grinding head 6 carry out grinding repeatedly to vegetable material to beat, improves crushing effect;
It is provided with expansion bracket 7 in the middle part of 3 top surface of pedestal, articles holding table 8 is provided on expansion bracket 7, is provided with and is used on articles holding table 8
The groove for placing mortar 2, is provided with clamp system in groove, the distance between 7 auxiliary adjustment grinding head 6 of expansion bracket and mortar 2,
Articles holding table 8 is for placing mortar 2 and arranging condenser pipe 9 in inside, thus to guaranteeing the vegetable material of process of lapping in low
Temperature state;
Cooling body includes condenser pipe 9, circulating pump 10 and liquid nitrogen storage storehouse 11, and condenser pipe 9 is set in articles holding table 8, and
It is arranged around mortar 2, condenser pipe 9 is connected to by circulating pump 10 with liquid nitrogen storage storehouse 11, and liquid nitrogen storage storehouse 11 is set to pedestal 3
On, so that liquid nitrogen is recycled progress between condenser pipe 9 and liquid nitrogen storage storehouse 11 by circulating pump 10, to make the plant in mortar 2
Material is constantly in low-temperature condition, and the switch for starting and closing, liquid nitrogen storage storehouse 11 and pedestal are provided on circulating pump 10
It is detachably connected, and is provided with feed inlet on liquid nitrogen storage storehouse 11.
Preferably, up and down reciprocatingly mechanism includes shielded box 12, motor 13, cam 14, driven wheel 15, link block 16, first
Spring 17 and connecting rod 18, shielded box 12 are set in support plate 5, and motor 13, the output of motor 13 are provided in shielded box 12
Cam 14 is connected on axis, be additionally provided in shielded box 12 can with the circular driven wheel 15 of 14 cooperative movement of cam, it is driven
15 lower section of wheel is connected with link block 16, is connected on link block 16 through shielded box 12 and support plate 5 and the connection extended downwardly
Bar 18, the first spring 17 is arranged in connecting rod 18 between link block 16 and the interior bottom of shielded box 12, and motor 13 drives
Cam 14 rotates, and cam 14 drives driven wheel 15 to rotate, and is the side of cam 14 since the rotary motion trace of driven wheel 15 is not round
Edge shape, so connecting rod 18 pumps with the rotation realization of driven wheel 15, to make grinding head 6 in mortar 2
Vegetable material is beaten up and down.
Preferably, it is connected through a screw thread between connecting rod 18 and grinding rod 1, passes through screw thread between grinding rod 1 and grinding head 6
Connection.
Preferably, 18 bottom of connecting rod is provided with the first connecting plate, is provided with the second connecting plate at the top of grinding rod 1, and first
It is bolted between connecting plate and the second connecting plate;1 bottom of grinding rod is provided with third connecting plate, sets at the top of grinding head 6
It is equipped with the 4th connecting plate, is bolted between third connecting plate and the 4th connecting plate.
Preferably, clamp system includes second spring 20 and arc panel 19, and groove inner wall is provided with multiple groups corresponding second
Spring 20 is connected with arc panel 19 in second spring 20, and groove top is provided with multiple elastic snap-gauges 21, and arc panel 20 is for blocking
The outer wall of tight mortar 2, elastic snap-gauge 21 are used to fix the upper surface of mortar 2.
Preferably, it is provided with soft rubber mortar lid on mortar 2, soft rubber mortar covers to be provided with and can accommodate grinding rod and wear
The through-hole crossed, soft rubber mortar lid is for preventing vegetable material evolution waste during beating.
Preferably, flow controller is provided on condenser pipe 9.
When specifically used, expansion bracket 7 is shunk first, then mortar 2 is placed in groove, and using clamp system and
Elastic snap-gauge 21 is fixed, and then the vegetable material ground will be needed to be placed in mortar 2, opens circulating pump 10, make plant
Material is in low-temperature condition, and expansion bracket 7 is then increased to grinding head 6 and touches mortar 2, and soft rubber mortar lid is covered tightly,
When vegetable material is more, when contraction expansion bracket 7 does not act on, grinding head 6 can be made to be in by elongation telescopic supporting rod 4
More Gao Gaodu is then opened in up and down reciprocatingly mechanism so that grinding head 6 be enable to beat the vegetable material in mortar 2
Motor 13, make cam 14 drive driven wheel 15 rotate, so that grinding head 6 be made to carry out beating grinding to vegetable material.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.