CN114768664B - Stirring device for analytical chemistry - Google Patents
Stirring device for analytical chemistry Download PDFInfo
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- CN114768664B CN114768664B CN202210571635.1A CN202210571635A CN114768664B CN 114768664 B CN114768664 B CN 114768664B CN 202210571635 A CN202210571635 A CN 202210571635A CN 114768664 B CN114768664 B CN 114768664B
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- 238000003756 stirring Methods 0.000 title claims abstract description 27
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- 238000006243 chemical reaction Methods 0.000 claims description 29
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- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 239000011435 rock Substances 0.000 abstract 2
- 238000004448 titration Methods 0.000 description 21
- 238000002474 experimental method Methods 0.000 description 16
- 239000000126 substance Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 11
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- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
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- 210000003781 tooth socket Anatomy 0.000 description 4
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Abstract
The invention discloses a stirring device for analytical chemistry, which comprises a base box, wherein an offset hole is formed in the top surface of the base box, a rotary structure is arranged in the offset hole, and an conical bottle is placed on the top surface of the rotary structure; can fix the erlenmeyer flask in skew central point department through skew fixed knot constructs, make the erlenmeyer flask around central circular motion, have the effect of imitating manual rocking, stirring effect is good, the position of erlenmeyer flask has obtained absolute control moreover, avoided titrating outside the erlenmeyer flask, lead to the problem of experimental failure, can carry out spacingly to the skew rotary disk through the locating component, make skew rotary disk can only unidirectional rotation, through installation mechanism, make things convenient for people to install the erlenmeyer flask on the skew rotary disk, do not need the experimenter to rock the erlenmeyer flask manually, very laborsaving, the operation degree of difficulty is little, rock the erlenmeyer flask and titrate and can go on in step moreover, experimental time is short, experimental velocity is fast, this analytical chemistry has been improved with agitating unit's practicality.
Description
Technical Field
The invention relates to the field of analytical chemistry experiment equipment, in particular to a stirring device for analytical chemistry.
Background
Analytical chemistry is a scientific analysis method and theory for researching chemical information such as composition, content, structure and morphology of a substance, and the main task of the analytical method is to identify the chemical composition of the substance, such as elements, ions, functional groups or compounds, etc., determine the content of relevant components of the substance, determine the structure of the substance, such as chemical structure, crystal structure and spatial distribution, determine the existence morphology of the substance, such as valence state, coordination state, crystallization state and relationship between the substance and the property of the substance, etc., and the titration is an important branch of chemistry, and is a means of chemical quantitative analysis, also a chemical experimental operation, the content of a solute is determined through quantitative reaction of two solutions, the titration endpoint is indicated according to the color change of an indicator, then the consumption volume of a standard solution is visually detected, the analysis result is calculated, the titration is performed by vertically clamping a burette on the burette, then a conical bottle filled with a liquid to be tested is placed under the burette, and then the burette is controlled to be titrated, and the conical bottle is rocked towards one direction, so as to play a role of stirring, the mutual reaction of the solution is promoted until the titration experiment is completed.
However, in titration experiments, manual shaking of the conical flask is laborious, the control force on the conical flask is required to be very high, titration drops are easily caused to be beyond the conical flask due to control errors, so that experiments fail, in order to avoid the fact that titration liquids are spilled, people generally use titration of a plurality of titration liquids and then stop titration, and then shake the conical flask to repeat analysis experiments, so that the experiment time is long, if the existing mechanical stirrer and magnetic stirrer are used for stirring, the mechanical stirrer can block the bottle mouth of the conical flask, the titration experiments are prevented, the mechanical stirrer needs to stretch the stirring paddles into the solution for stirring, the magnetic stirrer needs to put the magnetic stirrers into the solution for stirring, the stirring paddles and the magnetic stirrers are all likely to introduce impurities into the solution, measurement results are influenced, and the stirring paddles and the magnetic stirrers need to be cleaned and dried after use, so that the stirring device for analytical chemistry needs to be designed.
Disclosure of Invention
1. To solve the problems of A kind of electronic device technical problem
Aiming at the problems that in the titration experiment existing in the prior art, manual shaking of a conical flask is laborious, the control force on the conical flask is required to be very high, titration drops are easily caused to be outside the conical flask due to control errors, so that the experiment fails, in order to avoid the fact that titration liquid is sprayed out, people generally use titration liquid to stop titration, and then shake the conical flask to repeatedly perform analysis experiment, so that the experiment time is long, if the conventional mechanical stirrer and magnetic stirrer are used for stirring, the mechanical stirrer can block the bottle opening of the conical flask to prevent the titration experiment from being performed, the mechanical stirrer needs to stretch the stirring paddle into a solution for stirring, the magnetic stirrer needs to put a magnetic rotor into the solution for stirring, and the stirring paddle and the magnetic rotor are all likely to introduce impurities into the solution to influence the measurement result, and the stirring paddle and the magnetic rotor need to be cleaned and dried after being used, so that the experiment time is long, the stirring device for analytical chemistry can well solve the problems in the background technology.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
The utility model provides an agitating unit for analytical chemistry, includes the base case, set up the skew hole on the top surface of base case, the internally mounted in skew hole has revolution mechanic, has placed the erlenmeyer flask on the top surface of revolution mechanic.
Preferably, the device further comprises a reinforcing member, the reinforcing member comprises a fixed vertical bar and a rubber sucker, the bottom end of the fixed vertical bar is fixedly connected to the bottom surface of the inner cavity of the base box, an annular thin pipe positioned at the top end of the fixed vertical bar is fixedly inserted on the fixed vertical bar, a pressing air release valve positioned at the right end of the annular thin pipe is fixedly communicated with the top surface of the annular thin pipe, the pressing air release valve is fixedly inserted on the right side surface of the base box, a lower branch pipe is fixedly communicated with the bottom surface of the annular thin pipe, the rubber sucker is fixedly inserted on the bottom surface of the base box, an air inlet check valve and an air outlet check valve are fixedly inserted on the top surface of the rubber sucker, the air inlet check valve and the air outlet check valve are both in one-way communication with the rubber sucker, and the bottom end of the lower branch pipe is fixedly communicated with the top end of the air inlet check valve.
Preferably, the rotating structure comprises a spring driving piece, the spring driving piece is fixedly arranged on the bottom surface of the inner cavity of the base box, a fixed rotating disc is arranged at the top of the spring driving piece, and an offset rotating disc is arranged at the top of the fixed rotating disc.
Preferably, the spring driving device further comprises a positioning member, the positioning member comprises a positioning disc box, the positioning disc box is fixedly connected to the top surface of the spring driving piece, a positioning shaft positioned in the middle of the positioning disc box is movably inserted in the positioning disc box, the bottom end of the positioning shaft is fixedly connected with the top end of the output shaft on the spring driving piece, a positioning ratchet gear positioned in the positioning disc box is fixedly sleeved on the outer portion of the positioning shaft, a positioning elastic sheet is fixedly connected to the inner wall of the positioning disc box, and the positioning elastic sheet is in unidirectional engagement with the positioning ratchet gear.
Preferably, the fixed rotary disk comprises a rotary disk main body, the top end of the positioning shaft is fixedly connected to the middle part of the bottom surface of the rotary disk main body, a rectangular cavity positioned at the left end of the rotary disk main body is formed in the rotary disk main body, a rectangular sliding hole fixedly communicated with the rectangular cavity is formed in the top surface of the rotary disk main body, a fixed tooth slot is formed in the inner wall of the rectangular cavity, a fixed round hole is formed in the right side surface of the inner cavity of the rectangular cavity, a traction spring is fixedly connected to the right side surface of the inner cavity of the fixed round hole, and the left end of the traction spring extends to the inside of the rectangular cavity and is fixedly connected with an offset fixing structure.
Preferably, the offset fixed knot constructs including the offset rectangle piece, the inside in the rectangle chamber is pegged graft in the slip of offset rectangle piece, the right flank and the left end fixed connection of traction spring of offset rectangle piece, the vertical chamber of inserting that is located its middle part has been seted up to the inside of offset rectangle piece, two horizontal buffer chambers have been seted up to the inside of offset rectangle piece, two horizontal buffer chambers are located the left and right sides in vertical chamber of inserting respectively, the inner wall in horizontal buffer chamber is connected with the linkage piston through compression spring transmission, the inner wall sliding connection in linkage piston and horizontal buffer chamber, fixedly connected with fixed ratchet on the another side of linkage piston, the other end of fixed ratchet extends to the outside of offset rectangle piece and with fixed tooth's socket looks adaptation, fixedly connected with pull wire on the surface of linkage piston, the other end of pull wire passes compression spring and extends to the inside in vertical chamber of inserting.
Preferably, the automatic switching device further comprises a switching member, the switching member comprises a switching cylinder, the switching cylinder is movably inserted into the rectangular sliding hole and is fixedly connected to the top surface of the offset rectangular block, the top surface of the inner cavity of the switching cylinder is connected with a switching piston through a switching spring in a transmission mode, the switching piston is in sliding connection with the inner wall of the switching cylinder, a switching rod is fixedly inserted into the switching piston, the bottom end of the switching rod extends to the inside of the vertical insertion cavity and is fixedly connected with the end part of the traction wire, and the top end of the switching rod is fixedly connected with a switching disc.
Preferably, the skew rotary disk includes the skew disc, the top fixed connection of transition section of thick bamboo is at the middle part position of skew disc bottom surface, the drawing has the arrow on the top surface of skew disc, the arrow is unanimous with the orientation in rectangle chamber, be used for the suggestion to the application of force direction of skew rotary disk, the lower floor's track chamber that is located its bottom has been seted up to the inside of skew disc, the inner wall in lower floor's track chamber is connected with the lower traction piston through traction spring drive, lower traction piston and the inner wall sliding connection in lower floor's track chamber, fixedly connected with linkage on the another side of lower traction piston, the guide arc hole has been seted up on the side in lower floor's track chamber inner chamber, the inside of skew disc has been seted up and has been located the upper layer track chamber of lower floor's track chamber top, the other end of linkage passes the guide arc hole and extends the inside and fixedly connected with upper traction piston in upper layer track chamber, upper traction piston and the inside of ladder disc's the inside of upper layer track chamber sliding connection, the top surface of ladder disc is equipped with the right angle groove, the top surface of ladder disc is connected with the inclined plane of ladder disc, the landing plate is held in the inside the right angle of ladder, the landing plate is held in the top surface of ladder, the ladder is connected with the landing plate is connected with the right angle of ladder plate, the landing plate is held in the top surface of ladder plate, the top surface is connected with the landing plate.
Preferably, the device further comprises a mounting mechanism, the mounting mechanism comprises an inner concave ring, the inner concave ring is movably sleeved outside the offset disc, the end part of the traction rope is fixedly connected with the inner wall of the inner concave ring, an adjusting plate is fixedly connected to the inner wall of the inner concave ring, an adjusting ring is fixedly inserted on the adjusting plate, a fixing plate is movably sleeved outside the adjusting ring, the fixing plate is fixedly connected to the outer side face of the offset disc, a stress spring positioned between the adjusting plate and the fixing plate is movably sleeved outside the fixing plate, one end of the stress spring is fixedly connected with the surface of the adjusting plate, the other end of the stress spring is fixedly connected to the surface of the fixing plate, the stress spring is in a stretching state, a stop pin is fixedly connected to the outer surface of the offset disc, and is matched with the adjusting plate, and when the stop pin is contacted with the adjusting plate, the right-angle trapezoid plate is positioned at the dead center position of the center.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
Can make this agitating unit for analytical chemistry stable fix on the desktop through reinforcement member, stability is better, can not deviate original position in operation, help avoiding the titration solution unrestrained, and then avoid experimental failure, can bring the erlenmeyer flask to rotate through rotary structure, the effect to the solution has the stirring, can detect whether put the erlenmeyer flask on rotary structure through conversion member, when putting the erlenmeyer flask on rotary structure, conversion member can exert restoring force to skew fixed knot structure, can fix the erlenmeyer flask in skew central position department through skew fixed knot constructs, make the erlenmeyer flask around central circumferential motion, have the effect of imitating manual rocking, stirring effect is good, and the position of erlenmeyer flask has obtained absolute control, avoided titrating the drop outside the erlenmeyer flask, the problem that leads to experimental failure, can carry out spacingly to the skew rotary disk through positioning member, make the skew rotary disk can only unidirectional rotation, through installation mechanism, make things convenient for people to install the erlenmeyer flask on the skew rotary disk, do not need the manual erlenmeyer flask of experimenter, the very laborsaving, the operation degree of difficulty is little, convenient for, and shaking the erlenmeyer flask and titration can be synchronous to carry out, the effect, the experiment is quick, the experiment device has improved, and the experiment speed is practical.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the structure of the fastening member of FIG. 2 according to the present invention;
FIG. 4 is a schematic view showing the internal structure of the rubber suction cup of FIG. 3 according to the present invention;
FIG. 5 is a schematic view illustrating the internal structure of the rotary structure of FIG. 2 according to the present invention;
FIG. 6 is a schematic view of the internal structure of the positioning member of FIG. 5 according to the present invention;
FIG. 7 is a schematic view illustrating an inner structure of the stationary rotating disk of FIG. 5 according to the present invention;
FIG. 8 is a schematic view of the internal structure of the offset fixing structure of FIG. 7 according to the present invention;
FIG. 9 is a schematic view showing the internal structure of the switching member of FIG. 7 according to the present invention;
FIG. 10 is a schematic view of the inner structure of the offset rotary disk of FIG. 5 according to the present invention;
FIG. 11 is a cross-sectional view taken at A-A of FIG. 10 in accordance with the present invention.
The reference numerals in the figures illustrate:
01. A base box; 02. an offset hole; 03. a conical flask; 1. a reinforcing member; 11. fixing the vertical bar; 12. an annular tubule; 13. pressing the air release valve; 14. a lower branch pipe; 15. a rubber suction cup; 16. an air inlet one-way valve; 17. an air outlet one-way valve; 2. a rotating structure; 21. a spring drive; 22. fixing a rotating disc; 221. a turntable body; 222. a rectangular cavity; 223. rectangular slide holes; 224. fixing tooth grooves; 225. fixing the round hole; 226. a traction spring; 23. offsetting the rotating disc; 2301. an offset disk; 2302. a lower layer track cavity; 2303. a pulling spring; 2304. a lower pulling piston; 2305. a linkage line; 2306. a guide arc hole; 2307. an upper layer track cavity; 2308. an upper pulling piston; 2309. a traction rope; 2310. opening holes on the track; 2311. sliding the short sheet; 2312. right-angle trapezoidal plate; 2313. a receiving recess; 3. a positioning member; 31. positioning a disc box; 32. positioning a shaft; 33. positioning a ratchet gear; 34. positioning a spring plate; 4. an offset fixing structure; 41. offsetting the rectangular block; 42. a vertical insertion cavity; 43. a lateral buffer cavity; 44. a compression spring; 45. a linkage piston; 46. a fixed ratchet; 47. a traction wire; 5. a conversion member; 51. a conversion cylinder; 52. a switching spring; 53. a conversion piston; 54. a switching lever; 55. a switching plate; 6. a mounting mechanism; 61. an inner concave ring; 62. a regulating piece; 63. an adjusting ring; 64. a fixing piece; 65. stress springs.
Detailed Description
The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only a few embodiments of the present invention; but not all embodiments. Based on the embodiments in the present invention; all other embodiments obtained by those skilled in the art without undue burden; all falling within the scope of the present invention.
Referring to fig. 1-11, a stirring device for analytical chemistry comprises a base box 01, wherein an offset hole 02 is formed in the top surface of the base box 01, a rotary structure 2 is installed in the offset hole 02, and a conical bottle 03 is placed on the top surface of the rotary structure 2.
Still include reinforcement member 1, reinforcement member 1 includes fixed vertical bar 11 and rubber sucking disc 15, the bottom fixed connection of fixed vertical bar 11 is on the bottom surface of base case 01 inner chamber, fixed vertical bar 11 is last to be pegged graft has the annular tubule 12 that is located its top, fixed intercommunication has the pressure bleed valve 13 that is located its right-hand member on the top surface of annular tubule 12, press the fixed grafting of bleed valve 13 on the right flank of base case 01, fixed intercommunication has down branch pipe 14 on the bottom surface of annular tubule 12, rubber sucking disc 15 is pegged graft on the bottom surface of base case 01 fixedly, fixed grafting has air inlet check valve 16 and air outlet check valve 17 on the top surface of rubber sucking disc 15, air inlet check valve 16, air outlet check valve 17 all with rubber sucking disc 15 one-way intercommunication, the bottom of down branch pipe 14 and the top fixed intercommunication of air inlet check valve 16.
The rotating structure 2 comprises a spring driving piece 21, wherein the spring driving piece 21 is fixedly arranged on the bottom surface of the inner cavity of the base box 01, a fixed rotating disc 22 is arranged at the top of the spring driving piece 21, and an offset rotating disc 23 is arranged at the top of the fixed rotating disc 22.
Still include locating component 3, locating component 3 includes positioning disk case 31, positioning disk case 31 fixed connection is on the top surface of clockwork spring driver 21, the activity is interlude on the positioning disk case 31 has the locating shaft 32 that is located its middle part, the bottom of locating shaft 32 and the top fixed connection of output shaft on the clockwork spring driver 21, the outside fixed sleeve who is located positioning disk case 31 inside of locating shaft 32 fixes a position ratchet gear 33, fixedly connected with location shell fragment 34 on the inner wall of positioning disk case 31, location shell fragment 34 and the unidirectional meshing of location ratchet gear 33.
The fixed rotary disk 22 comprises a rotary disk main body 221, the top end of a positioning shaft 32 is fixedly connected to the middle part of the bottom surface of the rotary disk main body 221, a rectangular cavity 222 positioned at the left end of the rotary disk main body 221 is formed in the rotary disk main body 221, a rectangular sliding hole 223 fixedly communicated with the rectangular cavity 222 is formed in the top surface of the rotary disk main body 221, a fixed tooth slot 224 is formed in the inner wall of the rectangular cavity 222, a fixed round hole 225 is formed in the right side surface of the inner cavity of the rectangular cavity 222, a traction spring 226 is fixedly connected to the right side surface of the inner cavity of the fixed round hole 225, and the left end of the traction spring 226 extends to the inside of the rectangular cavity 222 and is fixedly connected with an offset fixing structure 4.
The offset fixing structure 4 comprises an offset rectangular block 41, the offset rectangular block 41 is slidably inserted into the rectangular cavity 222, the right side face of the offset rectangular block 41 is fixedly connected with the left end of a traction spring 226, a vertical insertion cavity 42 positioned in the middle of the offset rectangular block 41 is formed in the offset rectangular block 41, two transverse buffer cavities 43 are formed in the offset rectangular block 41, the two transverse buffer cavities 43 are respectively positioned on the left side and the right side of the vertical insertion cavity 42, the inner wall of the transverse buffer cavity 43 is in transmission connection with a linkage piston 45 through a compression spring 44, the linkage piston 45 is in sliding connection with the inner wall of the transverse buffer cavity 43, a fixed ratchet 46 is fixedly connected to the other face of the linkage piston 45, the other end of the fixed ratchet 46 extends to the outer portion of the offset rectangular block 41 and is matched with the fixed tooth socket 224, a traction wire 47 is fixedly connected to the surface of the linkage piston 45, and the other end of the traction wire 47 penetrates through the compression spring 44 and extends to the inner portion of the vertical insertion cavity 42.
Still include conversion component 5, conversion component 5 includes conversion section of thick bamboo 51, conversion section of thick bamboo 51 activity interlude in offset hole 02, conversion section of thick bamboo 51 activity grafting is on the top surface of rectangle slide hole 223 and fixed connection on offset rectangle piece 41, conversion piston 53 is connected with through conversion spring 52 transmission to the top surface of conversion section of thick bamboo 51 inner chamber, conversion piston 53 and conversion section of thick bamboo 51's inner wall sliding connection, conversion rod 54 has been fixedly pegged graft on the conversion piston 53, the bottom of conversion rod 54 extends to the inside of vertical insertion cavity 42 and with the tip fixed connection of haulage wire 47, conversion plate 55 is fixedly connected with on the top of conversion rod 54.
The offset rotary disk 23 comprises an offset rotary disk 2301, the top end of the conversion cylinder 51 is fixedly connected to the middle position of the bottom surface of the offset rotary disk 2301, an arrow is marked on the top surface of the offset rotary disk 2301, the arrow is consistent with the direction of the rectangular cavity 222 and used for prompting the direction of force application of the offset rotary disk 23, the direction of force application is consistent with the direction of the arrow, a lower layer track cavity 2302 positioned at the bottom end of the offset rotary disk 2301 is arranged in the offset rotary disk 2301, the inner wall of the lower layer track cavity 2302 is in transmission connection with a lower traction piston 2304 through a traction spring 2303, the lower traction piston 2304 is in sliding connection with the inner wall of the lower layer track cavity 2302, a linkage wire 2305 is fixedly connected to the other surface of the lower traction piston 2304, a guide arc hole 2306 is arranged on the side surface of the inner cavity of the lower layer track cavity 2302, an upper layer track cavity 2307 positioned above the lower layer track cavity 2302 is arranged in the offset rotary disk 2301, the other end of the linkage wire 2305 passes through the guide arc hole 2306 and extends to the inside of the upper track cavity 2307 and is fixedly connected with the upper pulling piston 2308, the upper pulling piston 2308 is in sliding connection with the inner wall of the upper track cavity 2307, the other surface of the upper pulling piston 2308 is fixedly connected with the pulling rope 2309, the other end of the pulling rope 2309 extends to the outside of the shifting disc 2301, the top surface of the shifting disc 2301 is provided with a track opening 2310 communicated with the upper track cavity 2307, the top surface of the upper pulling piston 2308 is fixedly connected with a sliding short sheet 2311, the top end of the sliding short sheet 2311 passes through the track opening 2310 and is fixedly connected with a right-angle trapezoid-shaped plate 2312, the right-angle trapezoid-shaped plate 2312 is in sliding connection with the top surface of the shifting disc 2301 and is movably buckled on the surface of the conical flask 03, the top surface of the shifting disc 2301 is provided with a containing concave hole 2313 positioned in the middle, the switching rod 54 is movably spliced in the inside of the shifting disc 2301, the conversion plate 55 is movably inserted into the accommodating recess 2313.
The installation mechanism 6 is further arranged, the installation mechanism 6 comprises an inner concave ring 61, the inner concave ring 61 is movably sleeved outside the offset disc 2301, the end part of the traction rope 2309 is fixedly connected to the inner wall of the inner concave ring 61, an adjusting plate 62 is fixedly connected to the inner wall of the inner concave ring 61, an adjusting ring 63 is fixedly inserted onto the adjusting plate 62, a fixing plate 64 is movably sleeved outside the adjusting ring 63, the fixing plate 64 is fixedly connected to the outer side face of the offset disc 2301, a stress spring 65 positioned between the adjusting plate 62 and the fixing plate 64 is movably sleeved outside the fixing plate 64, one end of the stress spring 65 is fixedly connected with the surface of the adjusting plate 62, the other end of the stress spring 65 is fixedly connected to the surface of the fixing plate 64, the stress spring 65 is in a stretching state, a stop pin is fixedly connected to the outer surface of the offset disc 2301, the stop pin is matched with the adjusting plate 62, and when the stop pin is contacted with the adjusting plate 62, a right-angle trapezoidal plate 2312 is positioned at a dead center position of the center, and the base box 01, the offset hole 02, the conical flask 03, an output shaft on the driving piece 21, the fixed rotating disc 22, the offset rotating disc 23, the positioning member 3, the offset fixing member 4, the offset structure 5 and the conversion member 6 share the same central axis.
Working principle:
The analytical chemistry stirring device is placed right under the burette first, the central axis of the burette is overlapped with the central axis of the analytical chemistry stirring device, then the inner concave ring 61 is rotated, the positioning ratchet gear 33 is meshed with the positioning elastic sheet 34 unidirectionally, the offset rotary disk 23 cannot rotate, then the inner concave ring 61 pulls the pulling rope 2309, the pulling rope 2309 is wound to the outside of the offset rotary disk 2301, then the pulling rope 2309 pulls the upper pulling piston 2308, then the upper pulling piston 2308 moves away from the center with the right-angle trapezoid 2312 by the sliding short piece 2311, when the distance between the right-angle trapezoid 2312 is larger than the diameter of the conical flask, the conical flask is placed in the middle of the top surface of the offset rotary disk 2301, then the conical flask applies pressure to the switching disk 55, then the switching disk 55 moves down with the switching rod 54, and at the same time the switching rod 54 pulls the switching spring 52 by the switching piston 53, the conversion spring 52 is elastically stretched, the elastic potential energy is increased, then the traction wire 47 is relaxed, then the linkage piston 45 moves out with the fixed ratchet 46 under the elastic force of the compression spring 44 and is in one-way engagement with the fixed tooth socket 224, then the inner concave ring 61 is released, then the lower traction piston 2304 pulls the upper traction piston 2308 to be close to the center position through the linkage wire 2305 under the elastic force of the traction spring 2303, then the upper traction piston 2308 pulls the traction rope 2309, then the traction rope 2309 is released from the side surface of the offset disc 2301, then the traction rope 2309 pulls the inner concave ring 61 to be reversed, then the inner concave ring 61 is reversed with the adjusting plate 62, then the stress spring 65 is elastically contracted, the elastic potential energy is reduced, the traction rope 2309 is always in a state of being straightened, so that the upper traction piston 2308 can respond in time each time when the inner concave ring 61 is rotated, the upper pulling piston 2308 is then moved toward the center by the sliding tab 2311 with the right-angled trapezoidal plate 2312, then the right-angled trapezoidal plate 2312 applies a pushing force to the conical flask 03, then the conical flask 03 is slid relatively, the position of the conical flask 03 is corrected, then the central axis of the conical flask 03 coincides with the central axis of the stirring device for analytical chemistry, then the right-angled trapezoidal plate 2312 is clamped at the edge of the side face of the conical flask 03, the fixation of the conical flask 03 is completed, then a pushing force to the left is applied to the offset rotary disk 23, then the offset rotary disk 23 slides to the left inside of the rectangular cavity 222 with the offset fixing structure 4 by the switching member 5, when the offset rotary disk 23 is offset to the left by a distance equal to two-thirds of the inner radius of the end opening of the conical flask 03, at this time the distance between the central axis of the buret and the inner wall of the mouth of the conical flask 03 is one third of the inner radius value of the mouth of the conical flask 03, then the linkage piston 45 is inserted into the corresponding fixed tooth socket 224 with the fixed ratchet 46 under the action of the elastic force of the compression spring 44, the offset fixed structure 4 is fixed, the offset fixed structure 4 fixes the offset rotary disk 23 through the conversion member 5, the distance between the central axis of the offset rotary disk 23 and the central axis of the fixed rotary disk 22 is fixed, then the spring driving piece 21 is forced, then the spring driving piece 21 is driven to rotate unidirectionally through the positioning shaft 32 with the fixed rotary disk 22, the positioning spring piece 34 does not block the rotation of the positioning ratchet gear 33, then the fixed rotary disk 22 moves circularly with the conical flask 03 through the offset fixed structure 4, the conversion member 5 and the offset rotary disk 23 by taking the central axes of the fixed rotary disk 22 and the burette as the center, the solution in the conical flask 03 is stirred, then the burette is controlled to perform titration, after titration is completed, the conical flask 03 is directly pulled upwards, then the upper pulling piston 2308 moves to the central position to the dead point position under the action of the elastic force of the pulling spring 2303, meanwhile, the switching disc 55 is released, then the switching spring 52 pulls the switching piston 53 upwards, then the switching piston 53 moves upwards through the switching rod 54 with the switching disc 55, the switching disc 55 moves out of the interior of the accommodating concave hole 2313, then the switching rod 54 pulls the pulling wire 47 upwards, then the pulling wire 47 pulls the linkage piston 45, then the linkage piston 45 moves into the interior of the transverse buffer cavity 43 with the fixed ratchet 46, then the fixed ratchet 46 is separated from the fixed tooth socket 224, the offset fixing structure 4 is released, then the offset fixing structure 4 is reset rightwards under the action of the elastic force of the pulling spring 226, and then the central axes of the fixed rotary disc 22, the offset fixing structure 4, the switching member 5, the offset rotary disc 23 and the burette coincide.
The above; is only a preferred embodiment of the present invention; the scope of the invention is not limited in this respect; any person skilled in the art is within the technical scope of the present disclosure; equivalent substitutions or changes are made according to the technical proposal of the invention and the improved conception thereof; are intended to be encompassed within the scope of the present invention.
Claims (1)
1. An analytical chemistry stirring device, comprising a base box (01), characterized in that: an offset hole (02) is formed in the top surface of the base box (01), a rotary structure (2) is arranged in the offset hole (02), and a conical bottle (03) is arranged on the top surface of the rotary structure (2);
the device comprises a base box (01), and is characterized by further comprising a reinforcing member (1), wherein the reinforcing member (1) comprises a fixed vertical bar (11) and a rubber sucker (15), the bottom end of the fixed vertical bar (11) is fixedly connected to the bottom surface of the inner cavity of the base box (01), an annular thin tube (12) positioned at the top end of the fixed vertical bar is fixedly inserted on the fixed vertical bar (11), a pressing air release valve (13) positioned at the right end of the annular thin tube is fixedly communicated with the top surface of the annular thin tube (12), the pressing air release valve (13) is fixedly inserted on the right side surface of the base box (01), a lower branch pipe (14) is fixedly communicated with the bottom surface of the annular thin tube (12), the rubber sucker (15) is fixedly inserted on the bottom surface of the base box (01), an air inlet one-way valve (16) and an air outlet one-way valve (17) are fixedly inserted on the top surface of the rubber sucker (15), and the bottom ends of the lower branch pipe (14) are fixedly communicated with the top end of the air inlet one-way valve (16); the rotating structure (2) comprises a spring driving piece (21), the spring driving piece (21) is fixedly arranged on the bottom surface of the inner cavity of the base box (01), a fixed rotating disc (22) is arranged at the top of the spring driving piece (21), and an offset rotating disc (23) is arranged at the top of the fixed rotating disc (22);
The positioning mechanism comprises a positioning component (3), wherein the positioning component (3) comprises a positioning disc box (31), the positioning disc box (31) is fixedly connected to the top surface of a spring driving piece (21), a positioning shaft (32) positioned in the middle of the positioning disc box is movably inserted in the positioning disc box (31), the bottom end of the positioning shaft (32) is fixedly connected with the top end of an output shaft on the spring driving piece (21), a positioning ratchet gear (33) positioned in the positioning disc box (31) is fixedly sleeved outside the positioning shaft (32), a positioning elastic piece (34) is fixedly connected to the inner wall of the positioning disc box (31), and the positioning elastic piece (34) is in unidirectional engagement with the positioning ratchet gear (33);
the fixed rotating disc (22) comprises a rotating disc main body (221), the top end of a positioning shaft (32) is fixedly connected to the middle part of the bottom surface of the rotating disc main body (221), a rectangular cavity (222) positioned at the left end of the rotating disc main body is formed in the rotating disc main body (221), a rectangular sliding hole (223) fixedly communicated with the rectangular cavity (222) is formed in the top surface of the rotating disc main body (221), a fixed tooth slot (224) is formed in the inner wall of the rectangular cavity (222), a fixed round hole (225) is formed in the right side surface of the inner cavity of the rectangular cavity (222), a traction spring (226) is fixedly connected to the right side surface of the inner cavity of the fixed round hole (225), and the left end of the traction spring (226) extends to the inside of the rectangular cavity (222) and is fixedly connected with an offset fixing structure (4);
The offset fixing structure (4) comprises an offset rectangular block (41), the offset rectangular block (41) is connected in a sliding mode in the rectangular cavity (222), the right side face of the offset rectangular block (41) is fixedly connected with the left end of the traction spring (226), a vertical inserting cavity (42) located in the middle of the offset rectangular block is formed in the offset rectangular block (41), two transverse buffer cavities (43) are formed in the offset rectangular block (41), the two transverse buffer cavities (43) are respectively located on the left side and the right side of the vertical inserting cavity (42), the inner wall of the transverse buffer cavity (43) is connected with a linkage piston (45) through a compression spring (44) in a transmission mode, the linkage piston (45) is connected with the inner wall of the transverse buffer cavity (43) in a sliding mode, the other face of the linkage piston (45) is fixedly connected with a fixed ratchet (46), the other end of the fixed ratchet (46) extends to the outer portion of the offset rectangular block (41) and is matched with the fixed tooth groove (224), the other end of the traction wire (47) penetrates through the compression spring (44) and extends to the inner portion of the vertical inserting cavity (42);
The automatic switching device is characterized by further comprising a switching member (5), wherein the switching member (5) comprises a switching cylinder (51), the switching cylinder (51) is movably inserted into the rectangular sliding hole (223) and fixedly connected to the top surface of the offset rectangular block (41), the top surface of the inner cavity of the switching cylinder (51) is connected with a switching piston (53) through a switching spring (52) in a transmission manner, the switching piston (53) is slidably connected with the inner wall of the switching cylinder (51), a switching rod (54) is fixedly inserted onto the switching piston (53), the bottom end of the switching rod (54) extends into the vertical insertion cavity (42) and is fixedly connected with the end part of the traction wire (47), and the top end of the switching rod (54) is fixedly connected with a switching disc (55);
The deflection rotating disc (23) comprises a deflection disc (2301), a mounting mechanism (6) is arranged outside the deflection disc (2301), the top end of the conversion tube (51) is fixedly connected to the middle position of the bottom surface of the deflection disc (2301), a lower layer track cavity (2302) positioned at the bottom end of the deflection disc (2301) is arranged inside the deflection disc (2301), a lower traction piston (2304) is connected to the inner wall of the lower layer track cavity (2302) in a transmission way through a traction spring (2303), the lower traction piston (2304) is in sliding connection with the inner wall of the lower layer track cavity (2302), a linkage wire (2305) is fixedly connected to the other surface of the lower traction piston (2304), a guide arc hole (6) is formed in the side surface of the inner cavity of the lower layer track cavity (2302), an upper layer track cavity (2307) positioned above the lower layer track cavity (2302) is formed inside the deflection disc (2301), the other end of the linkage wire (2305) passes through the guide arc hole (2306) and is connected to the upper layer (2308) of the upper traction wire (2308) which is fixedly connected to the upper layer (2308), the top surface of skew disc (2301) is seted up on the top surface with upper track chamber (2307) intercommunication track trompil (2310), fixedly connected with slip short piece (2311) on the top surface of upper pulling piston (2308), the top of slip short piece (2311) passes track trompil (2310) and fixedly connected with right angle trapezoidal plate (2312), right angle trapezoidal plate (2312) and the top surface sliding connection and the activity lock of skew disc (2301) are on the surface of erlenmeyer flask (03), offer on the top surface of skew disc (2301) and be located shrinkage pool (2313) that hold in its middle part, changeover lever (54) activity grafting is in the inside of skew disc (2301), changeover panel (55) activity grafting is in the inside of holding shrinkage pool (2313).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571635.1A CN114768664B (en) | 2022-05-25 | 2022-05-25 | Stirring device for analytical chemistry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210571635.1A CN114768664B (en) | 2022-05-25 | 2022-05-25 | Stirring device for analytical chemistry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114768664A CN114768664A (en) | 2022-07-22 |
| CN114768664B true CN114768664B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210571635.1A Active CN114768664B (en) | 2022-05-25 | 2022-05-25 | Stirring device for analytical chemistry |
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| CN (1) | CN114768664B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175439A (en) * | 2020-02-12 | 2020-05-19 | 何颖 | Pharmacology electronic titrator device |
| CN214473074U (en) * | 2021-02-04 | 2021-10-22 | 长治医学院 | Titration apparatus for drug analysis |
| CN216313400U (en) * | 2021-11-08 | 2022-04-15 | 深圳市欣瑞声科技有限公司 | Sound box integrated circuit system based on TWS technology |
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2022
- 2022-05-25 CN CN202210571635.1A patent/CN114768664B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175439A (en) * | 2020-02-12 | 2020-05-19 | 何颖 | Pharmacology electronic titrator device |
| CN214473074U (en) * | 2021-02-04 | 2021-10-22 | 长治医学院 | Titration apparatus for drug analysis |
| CN216313400U (en) * | 2021-11-08 | 2022-04-15 | 深圳市欣瑞声科技有限公司 | Sound box integrated circuit system based on TWS technology |
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| Publication number | Publication date |
|---|---|
| CN114768664A (en) | 2022-07-22 |
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