CN114047288A - Titration apparatus used in pharmacy measurement - Google Patents
Titration apparatus used in pharmacy measurement Download PDFInfo
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- CN114047288A CN114047288A CN202111335072.8A CN202111335072A CN114047288A CN 114047288 A CN114047288 A CN 114047288A CN 202111335072 A CN202111335072 A CN 202111335072A CN 114047288 A CN114047288 A CN 114047288A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
- G01N31/18—Burettes specially adapted for titration
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Abstract
The invention provides a titration apparatus used in pharmacy metering, which comprises a support frame, wherein a vertical clamping mechanism used for vertically clamping a burette is fixed on the support frame; the support frame is also fixed with a titration extrusion mechanism which comprises a left extrusion piece positioned on the left side of the burette and a right extrusion piece positioned on the right side of the burette; a synchronous propelling component is fixed on the supporting frame and is used for driving the left extrusion piece and the right extrusion piece to extrude the rubber head of the burette from the left side and the right side; the titration device also comprises an extrusion distance monitoring system, wherein the extrusion distance monitoring system comprises a distance sensor, and the distance sensor is connected with the microprocessor; the invention provides a titration device used in pharmacy metering, which can accurately control the force for extruding a rubber head according to the titration amount when a rubber head dropper titrates a reagent, and can avoid the problem of excessive reagent titration caused by excessive extrusion when half or one quarter of a drop is titrated.
Description
Technical Field
The invention belongs to the technical field of titration tools, and particularly relates to a titration apparatus used in pharmacy metering.
Background
The main task of pharmacy is to provide more effective drugs and improve the quality of the drugs continuously, so as to ensure the safety of medication and treat or cure diseases with minimal harm and maximum benefit. The main points of pharmacy are to study the source, processing, properties, actions, analysis, identification, blending, production, and search (including synthesis) of new drugs.
Titration analysis is a main analysis mode in pharmaceutical analysis, and can be divided into an acid-base titration method, a coordination titration method, an oxidation-reduction titration method and a precipitation titration method according to the reaction type of titration. While the rubber-tipped dropper is a commonly used titration tool in titration analysis, a beginner can suffer from various problems when using the rubber-tipped dropper, and particularly, the problem that reagent is overdetermined easily occurs because the skill of half-drop or quarter-drop cannot be accurately applied when titration is close to an end point.
Disclosure of Invention
The invention provides a titration device used in pharmacy metering, which can accurately control the force for extruding a rubber head according to the titration amount when a rubber head dropper titrates a reagent, and can avoid the problem of excessive reagent titration caused by excessive extrusion when half or one quarter of a drop is titrated.
The technical scheme of the invention is as follows:
a titration apparatus for use in pharmaceutical metering, comprising:
a support frame;
the vertical clamping mechanism is fixed on the support frame and used for vertically clamping the burette;
titration extrusion mechanism includes: a left extrusion located on the left side of the burette; the right extrusion piece is positioned on the right side of the burette and is symmetrically arranged with the left extrusion piece; the synchronous propelling component is fixed on the supporting frame and is used for driving the left extrusion piece and the right extrusion piece to extrude the rubber head of the burette from the left side and the right side;
the extrusion distance monitoring system includes: the distance sensor is fixed on the supporting frame and used for monitoring the moving distance of the left extrusion piece or the right extrusion piece; and the microprocessor is connected with the synchronous propelling component and the distance sensor, and closes the synchronous propelling component when receiving that the numerical value monitored by the distance sensor reaches a set numerical value.
The above-mentioned extrusion distance monitoring system still includes:
the selection module is used for selecting the titration amount in each titration operation, and selecting full titration, half titration and quarter titration;
the data processing module is used for receiving the titration amount selected by the selection module and obtaining the synchronous movement distance of the left extrusion piece and the right extrusion piece when the full drop, the half drop and the quarter drop are titrated according to the selected titration amount;
the driving module is used for receiving the data processed by the data processing module and is connected with the synchronous propelling component and the distance sensor; and when the numerical value monitored by the distance sensor is the same as the set data processed by the data processing module, the synchronous propelling component is closed.
The above-mentioned synchronous propulsion subassembly includes:
the first rectangular frame is fixed on the support frame;
the left-handed screw is horizontally arranged, the left end of the left-handed screw is connected with a bearing seat through a bearing, and the bearing seat is fixed inside the first rectangular frame;
the left end of the right-handed screw is fixedly connected with the right end of the left-handed screw; the right end of the right-handed screw is horizontally arranged and is connected with a bearing seat through a bearing, and the bearing seat is fixed inside the first rectangular frame;
the left-handed nut is in threaded connection with the left-handed screw; the side wall of the left-handed nut is connected with the vertical end of the first L-shaped rod, and the horizontal end of the first L-shaped rod is fixedly connected with the left extrusion piece; the vertical end of the first L-shaped bar is opposite the distance sensor; a first sliding block is further fixed on the side wall of the left-handed nut and is in sliding connection with a first sliding groove formed in the first rectangular frame;
the right-handed nut is in threaded connection with the right-handed screw; the side wall of the right-handed nut is connected with the vertical end of the second L-shaped rod, and the horizontal end of the second L-shaped rod is fixedly connected with the right extrusion piece; a second sliding block is further fixed on the side wall of the right-handed nut and is also in sliding connection with a first sliding groove formed in the first rectangular frame;
the motor is fixed on the first rectangular frame, and an output shaft of the motor is connected with one end of the left-handed screw; the motor is connected with the driving module.
The vertical clamping mechanism comprises:
the left side and the right side of the second rectangular frame are respectively connected with a block in a sliding manner, and the two blocks are respectively fixed on the left side and the right side of the support frame;
the plate body is fixedly connected with the second rectangular frame;
the outer shell is fixed on the second rectangular frame, and the telescopic end penetrates through the plate body;
the left clamping piece is hinged with one end of the plate body and is hinged with the telescopic end of the pushing piece through a first connecting rod;
the right clamping piece is hinged with the other end of the plate body and is also hinged with the telescopic end of the pushing piece through a second connecting rod;
the fasteners are respectively fixed at the telescopic end of the pushing piece, the inner side of the left clamping piece and the inner side of the right clamping piece;
the telescopic end of the pushing piece drives the left clamping piece and the right clamping piece to rotate relative to the plate body, and the left clamping piece and the right clamping piece rotate relative to the plate body to drive the two fasteners and the fastener fixed at the end of the pushing piece to clamp the burette from three directions.
The number of the vertical clamping mechanisms is two, the two vertical clamping mechanisms share the same pushing piece, the pushing piece is an electric push rod, and the telescopic end of the electric push rod is fixedly connected with a third connecting rod; the upper end of the third connecting rod is fixedly connected with a first push rod, and the first push rod penetrates through a plate body of the vertical clamping mechanism; the lower end of the third connecting rod is fixedly connected with a second push rod, and the second push rod penetrates through a plate body of the other vertical mechanism.
And one end of each block body is respectively fixed with a limiting component for limiting the second rectangular frame to slide out of the block body.
Above-mentioned spacing subassembly includes:
the limiting plate is in sliding connection with a groove formed in the block body; one end of the limiting plate, which penetrates through the groove, is of an inclined plane structure;
and one end of the spring is fixed in the groove, and the other end of the spring is fixedly connected with one end of the limiting plate, which is positioned in the groove.
The fastening piece is made of rubber; the left extrusion spare with the right extrusion spare is the arc, is fixed with the rubber pad in the arc.
The invention has the beneficial effects that:
1. in the prior art, a rubber head dropper is a commonly used titration tool in titration analysis, but a beginner can suffer from various problems when using the rubber head dropper, and particularly, the problem that reagent titration is excessive is easily caused by the skill of inaccurate application of half drops or quarter drops when titration is close to an end point.
If the problem that the excessive titration is easily caused by controlling the squeezing pressure by the hand of a person is adopted, the invention provides the titration device used in the pharmaceutical metering instead of the hand of the person. According to the invention, the left extrusion piece and the right extrusion piece are matched to extrude the rubber head, the smaller the distance between the left extrusion piece and the right extrusion piece is, the larger the extrusion force is, and the extrusion force determines the amount of the reagent dripped by the burette, so that the amount of the extruded reagent can be controlled only by controlling the distance between the left extrusion piece and the right extrusion piece.
2. In order to realize accurate titration of full drops, half drops and quarter drops, the distance between the left extrusion piece and the right extrusion piece when the full drops, the half drops and the quarter drops are titrated is set in the extrusion distance monitoring system in advance. Then, monitoring the moving distance of the left extrusion part by using a distance sensor, selecting the titration amount by using a selection module before each titration, and then obtaining the synchronous moving distance of the left extrusion part and the right extrusion part when the left extrusion part and the right extrusion part titrate a full drop, a half drop and a quarter drop according to the selected titration amount by using a data processing module; and when the microprocessor receives that the numerical value monitored by the distance sensor is the same as the set data processed by the data processing module, the synchronous propelling component is closed.
3. The invention utilizes the synchronous propelling component to propel the left extrusion piece and the right extrusion piece from two sides to ensure that the two sides of the rubber head are stressed uniformly.
4. The invention utilizes the vertical clamping mechanism to clamp the burette, the telescopic end of the pushing piece utilized by the vertical clamping mechanism drives the left clamping piece and the right clamping piece to rotate relative to the plate body, and the left clamping piece and the right clamping piece rotate relative to the plate body to drive the two fasteners and the fastener fixed at the end part of the pushing piece to clamp the burette from three directions. The burette is stably clamped by the three-point clamping, the number of the vertical clamping mechanisms is two, the two vertical clamping mechanisms synchronously clamp the burette from the upper side and the lower side, and the center of the burette is ensured to be on the same straight line.
5. The invention also utilizes a limiting component to limit the sliding out of the block, even if the movement of the burette is limited. After the burette centre gripping is good, the second rectangle frame slips into from the block, can press the limiting plate when the second rectangle frame slips in, and the limiting plate can press the spring and remove in to the recess, and after the second rectangle frame got into completely, the spring would promote the limiting plate roll-off again.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic structural diagram of the vertical clamping mechanism of the present invention.
FIG. 3 is a schematic view of the structure of the pushing member of the present invention cooperating with the first push rod and the second push rod.
Fig. 4 is a schematic structural view of the limiting assembly of the present invention.
Fig. 5 is a control schematic block diagram of the present invention.
Description of reference numerals:
1. a support frame; 2. a burette; 3. a left extrusion; 4. a right extrusion; 5. a distance sensor; 6. a microprocessor; 7. a first rectangular frame; 8. a left-handed screw; 9. a right-handed screw; 10. a left-handed nut; 11. a first L-shaped bar; 12. right-hand turning of the nut; 13. a second L-shaped bar; 14. a motor; 15. a second rectangular frame; 16. a block body; 17. a plate body; 18. a pusher member; 19. a left clamp; 20. a first link; 21. a right clamp; 22. a second link; 23. a fastener; 24. a third link; 25. a first push rod; 26. a second push rod; 27. a limiting plate; 28. a groove; 29. a spring.
Detailed Description
An embodiment of the present invention will be described in detail with reference to fig. 1 to 5, but it should be understood that the scope of the present invention is not limited by the embodiment.
Example 1:
as shown in fig. 1, the embodiment of the present invention provides a titration apparatus for use in pharmaceutical metrology, comprising a support 1; the vertical clamping mechanism is fixed on the support frame 1 and used for vertically clamping the burette 2; titration extrusion mechanism includes: a left extrusion 3 located on the left side of the burette 2; a right extrusion 4 positioned on the right side of the burette 2 and symmetrically positioned with the left extrusion 3; the synchronous propelling component is fixed on the support frame 1 and is used for driving the left extrusion piece 3 and the right extrusion piece 4 to extrude the rubber head of the burette 2 from the left side and the right side; the extrusion distance monitoring system includes: a distance sensor 5 fixed on the support frame 1 for monitoring the moving distance of the left extrusion piece 3 or the right extrusion piece 4; and the microprocessor 6 is connected with the synchronous propelling component and the distance sensor 5, and is used for closing the synchronous propelling component when receiving that the value monitored by the distance sensor 5 reaches a set value.
In the prior art, a rubber head dropper is a commonly used titration tool in titration analysis, but a beginner can suffer from various problems when using the rubber head dropper, and particularly, the problem of reagent overdetermination is easily caused by the skill of inaccurate application of half drops or quarter drops when titration is close to an end point.
If the problem that the excessive titration is easily caused by controlling the squeezing pressure by the hand of a person is adopted, the invention provides the titration device used in the pharmaceutical metering instead of the hand of the person. According to the invention, the left extrusion part 3 and the right extrusion part 4 are matched to extrude the rubber head, the smaller the distance between the left extrusion part 3 and the right extrusion part 4 is, the higher the extrusion force is, and the extrusion force determines the amount of the reagent dripped by the burette, so that the amount of the extruded reagent is controlled only by controlling the distance between the left extrusion part 3 and the right extrusion part 4, and meanwhile, the synchronous propelling component can push the left extrusion part and the right extrusion part from two sides to ensure that the two sides of the rubber head are uniformly stressed.
Further, the squeezing distance monitoring system further includes: the selection module is used for selecting the titration amount in each titration operation, and selecting full titration, half titration and quarter titration; the data processing module is used for receiving the titration amount selected by the selection module and obtaining the synchronous movement distance of the left extrusion piece 3 and the right extrusion piece 4 when the whole drop, the half drop and the quarter drop are titrated according to the selected titration amount; the driving module is used for receiving the data processed by the data processing module and is connected with the synchronous propelling component and the distance sensor 5; and when the numerical value monitored by the distance sensor 5 is the same as the set data processed by the data processing module, the synchronous propelling component is closed.
Further, the synchronous propulsion assembly comprises: the first rectangular frame 7 is fixed on the support frame 1; the left-handed screw 8 is horizontally arranged, the left end of the left-handed screw is connected with a bearing seat through a bearing, and the bearing seat is fixed inside the first rectangular frame 7; the left end of the right-handed screw 9 is fixedly connected with the right end of the left-handed screw 8; the right end of the right-handed screw 9 is horizontally arranged and is connected with a bearing seat through a bearing, and the bearing seat is fixed inside the first rectangular frame 7; the left-handed nut 10 is in threaded connection with the left-handed screw 8; the side wall of the left-handed nut 10 is connected with the vertical end of a first L-shaped rod 11, and the horizontal end of the first L-shaped rod 11 is fixedly connected with the left extrusion piece 3; the vertical end of the first L-shaped bar 11 is opposite to the distance sensor 5; a first sliding block is further fixed on the side wall of the left-handed nut 10 and is in sliding connection with a first sliding groove formed in the first rectangular frame 7; the right-handed nut 12 is in threaded connection with the right-handed screw 9; the side wall of the right-handed nut 12 is connected with the vertical end of a second L-shaped rod 13, and the horizontal end of the second L-shaped rod 13 is fixedly connected with the right extrusion part 4; a second sliding block is further fixed on the side wall of the right-handed nut 12 and is also in sliding connection with a first sliding groove formed in the first rectangular frame 7; and the motor 14 is fixed on the first rectangular frame 7, an output shaft of the motor 14 is connected with one end of the left-handed screw 8, and the motor 14 is connected with the driving module.
In order to achieve accurate titration of full drops, half drops and quarter drops, the distance between the left extrusion 3 and the right extrusion 4 at the time of titration of full drops, half drops and quarter drops is set in advance in the extrusion distance monitoring system. Then, a distance sensor 5 is used for monitoring the moving distance of the left extrusion part 3, before each titration, the titration amount is selected by a selection module, and then the data processing module obtains the synchronous moving distance of the left extrusion part 3 and the right extrusion part 4 when the full drop, the half drop and the quarter drop are titrated according to the selected titration amount; and when the titration is started, the distance sensor 5 always sends the monitored numerical value to the microprocessor 6, and when the microprocessor 6 receives that the numerical value monitored by the distance sensor 5 is the same as the set data processed by the data processing module, the synchronous propelling component is closed.
Example 2:
this embodiment is based on embodiment 1, and the vertical clamping mechanism includes: the left side and the right side of the second rectangular frame 15 are respectively connected with a block 16 in a sliding manner, and the two block 16 are respectively fixed on the left side and the right side of the support frame 1; the plate body 17 is fixedly connected with the second rectangular frame 15; a pushing piece 18, the outer shell is fixed on the second rectangular frame 15, and the telescopic end passes through the plate body 17; the left clamping piece 19 is hinged with one end of the plate body 17 and is hinged with the telescopic end of the pushing piece 18 through a first connecting rod 20; a right clamping piece 21 which is hinged with the other end of the plate body 17 and is also hinged with the telescopic end of the pushing piece 18 through a second connecting rod 22; fasteners 23 respectively fixed at the telescopic end of the pushing member 18, the inner side of the left clamping member 19 and the inner side of the right clamping member 21;
the telescopic end of the pushing part 18 drives the left clamping part 19 and the right clamping part 21 to rotate relative to the plate body, and the left clamping part 19 and the right clamping part 21 rotate relative to the plate body to drive the two fastening pieces 23 and the fastening piece 23 fixed at the end part of the pushing part 18 to clamp the burette from three directions.
Furthermore, the number of the vertical clamping mechanisms is two, the two vertical clamping mechanisms share the same pushing part 18, the pushing part 18 is an electric push rod, and the telescopic end of the electric push rod is fixedly connected with a third connecting rod 24; the upper end of the third connecting rod 24 is fixedly connected with a first push rod 25, and the first push rod 25 penetrates through a plate body 17 of the vertical clamping mechanism; the lower end of the third connecting rod 24 is fixedly connected with a second push rod 26, and the second push rod 26 penetrates through the plate body 17 of the other vertical mechanism.
The burette is clamped by the vertical clamping mechanism, the telescopic end of the pushing piece 18 utilized by the vertical clamping mechanism drives the left clamping piece 19 and the right clamping piece 21 to rotate relative to the plate body 17, and the left clamping piece 19 and the right clamping piece 21 rotate relative to the plate body 17 to drive the two fastening pieces 23 and the fastening piece 23 fixed at the end part of the pushing piece 18 to clamp the burette from three directions. The burette is stably clamped by the three-point clamping, the number of the vertical clamping mechanisms is two, the two vertical clamping mechanisms synchronously clamp the burette from the upper side and the lower side, and the center of the burette is ensured to be on the same straight line.
Example 3:
in this embodiment, based on embodiment 2, a limiting component for limiting the second rectangular frame 15 to slide out of the block 16 is respectively fixed to one end of each block 16.
Further, spacing subassembly includes: the limiting plate 27 is in sliding connection with a groove 28 formed in the block body 16; one end of the limiting plate 27 penetrating through the groove 28 is of an inclined slope structure; and one end of the spring 29 is fixed in the groove 28, and the other end of the spring is fixedly connected with one end of the limiting plate 27, which is positioned in the groove 28.
Further, the fastening member 23 is made of rubber; the left extrusion piece 3 and the right extrusion piece 4 are both arc-shaped plates, and rubber pads are fixed in the arc-shaped plates.
The present invention also utilizes a stop assembly to limit the sliding out of the block 16, even if the movement of the burette is limited. After the burette is clamped, the second rectangular frame 15 slides in from the block 16, the limiting plate 27 is pressed when the second rectangular frame 15 slides in, the limiting plate 27 presses the spring 29 to move in the groove 28, and when the second rectangular frame 15 completely enters, the spring 29 pushes the limiting plate 27 to slide out.
The working principle of the invention is as follows:
when the device is used, a burette is clamped by a vertical clamping mechanism, the pushing part 18 of the vertical clamping mechanism is started, the telescopic end of the pushing part 18 drives the left clamping part 19 and the right clamping part 21 to rotate relative to the plate body 17, and the left clamping part 19 and the right clamping part 21 rotate relative to the plate body 17 to drive the two fastening pieces 23 and the fastening piece 23 fixed at the end part of the pushing part 18 to clamp the burette from three directions. The burette is stably clamped by the three-point clamping, the number of the vertical clamping mechanisms is two, the two vertical clamping mechanisms synchronously clamp the burette from the upper side and the lower side, and the center of the burette is ensured to be on the same straight line.
After the burette is clamped, the second rectangular frame 15 of the vertical clamping mechanism is pushed to slide in from the sliding groove formed in the block 16, the limiting plate 27 can be pressed when the second rectangular frame 15 slides in, the limiting plate 27 can be pressed to move the spring 29 into the groove 28, after the second rectangular frame 15 completely enters, the spring 29 can push the limiting plate 27 to slide out, and after the limiting plate 27 slides out, the position of the second rectangular frame 15 is limited to avoid shaking.
In order to achieve accurate titration of full drops, half drops and quarter drops, the distance between the left extrusion 3 and the right extrusion 4 at the time of titration of full drops, half drops and quarter drops is set in advance in the extrusion distance monitoring system. Then, a distance sensor 5 is used for monitoring the moving distance of the left extrusion part, before each titration, the titration amount is selected by a selection module, and then a data processing module obtains the synchronous moving distance of the left extrusion part 3 and the right extrusion part 4 when the full drop, the half drop and the quarter drop are titrated according to the selected titration amount; and when the titration is started, the distance sensor 5 always sends the monitored numerical value to the microprocessor 6, and when the microprocessor 6 receives that the numerical value monitored by the distance sensor 5 is the same as the set data processed by the data processing module, the synchronous propelling component is closed.
In summary, the invention provides a titration apparatus used in pharmaceutical metering, which can accurately control the force for squeezing a rubber head according to the titration amount when a rubber head dropper titrates a reagent, and can avoid the problem of excessive reagent titration caused by excessive squeezing when half or a quarter of a drop is titrated.
Claims (8)
1. A titration device for use in pharmaceutical metering, comprising:
a support frame (1);
the vertical clamping mechanism is fixed on the support frame (1) and is used for vertically clamping the burette (2);
titration extrusion mechanism includes: a left extrusion piece (3) positioned at the left side of the burette (2); the right extrusion piece (4) is positioned on the right side of the burette (2) and is symmetrically arranged with the left extrusion piece (3); the synchronous propelling component is fixed on the support frame (1) and is used for driving the left extrusion piece (3) and the right extrusion piece (4) to extrude the rubber head of the burette (2) from the left side and the right side;
the extrusion distance monitoring system includes: the distance sensor (5) is fixed on the support frame (1) and used for monitoring the moving distance of the left extrusion piece (3) or the right extrusion piece (4); and the microprocessor (6) is connected with the synchronous propelling component and the distance sensor (5), and is used for closing the synchronous propelling component when receiving that the value monitored by the distance sensor (5) reaches a set value.
2. A titration device for use in pharmaceutical metrology according to claim 1, wherein the compression distance monitoring system further comprises:
the selection module is used for selecting the titration amount in each titration operation, and selecting full titration, half titration and quarter titration;
the data processing module is used for receiving the titration amount selected by the selection module and obtaining the synchronous moving distance of the left extrusion piece (3) and the right extrusion piece (4) when the whole drop, the half drop and the quarter drop are titrated according to the selected titration amount;
the driving module is used for receiving the data processed by the data processing module and is connected with the synchronous propelling component and the distance sensor (5); and when the numerical value monitored by the distance sensor (5) is the same as the set data processed by the data processing module, the synchronous propelling component is closed.
3. A titration device for use in pharmaceutical metrology according to claim 2, wherein the synchronous advancement assembly comprises:
the first rectangular frame (7) is fixed on the support frame (1);
the left-handed screw (8) is horizontally arranged, the left end of the left-handed screw is connected with a bearing seat through a bearing, and the bearing seat is fixed inside the first rectangular frame (7);
the left end of the right-handed screw (9) is fixedly connected with the right end of the left-handed screw (8); the right end of the right-handed screw (9) is horizontally arranged and is connected with a bearing seat through a bearing, and the bearing seat is fixed inside the first rectangular frame (7);
the left-handed nut (10) is in threaded connection with the left-handed screw (8); the side wall of the left-handed nut (10) is connected with the vertical end of a first L-shaped rod (11), and the horizontal end of the first L-shaped rod (11) is fixedly connected with the left extrusion piece (3); the vertical end of the first L-shaped rod (11) is opposite to the distance sensor (5); a first sliding block is further fixed on the side wall of the left-handed nut (10), and the first sliding block is in sliding connection with a first sliding groove formed in the first rectangular frame (7);
the right-handed nut (12) is in threaded connection with the right-handed screw (9); the side wall of the right-handed nut (12) is connected with the vertical end of a second L-shaped rod (13), and the horizontal end of the second L-shaped rod (13) is fixedly connected with the right extrusion piece (4); a second sliding block is further fixed on the side wall of the right-handed nut (12), and the second sliding block is also in sliding connection with a first sliding groove formed in the first rectangular frame (7);
the motor (14) is fixed on the first rectangular frame (7), and an output shaft of the motor (14) is connected with one end of the left-handed screw (8); the motor (14) is connected with the driving module.
4. A titration device for use in pharmaceutical metrology according to claim 1, wherein the vertical clamping mechanism comprises:
the left side and the right side of the second rectangular frame (15) are respectively connected with a block body (16) in a sliding manner, and the two block bodies (16) are respectively fixed on the left side and the right side of the support frame (1);
the plate body (17) is fixedly connected with the second rectangular frame (15);
the outer shell is fixed on the second rectangular frame (15), and the telescopic end penetrates through the plate body (17);
the left clamping piece (19) is hinged with one end of the plate body (17) and is hinged with the telescopic end of the pushing piece (18) through a first connecting rod (20);
the right clamping piece (21) is hinged with the other end of the plate body (17) and is also hinged with the telescopic end of the pushing piece (18) through a second connecting rod (22);
the fasteners (23) are respectively fixed at the telescopic end of the pushing piece (18), the inner side of the left clamping piece (19) and the inner side of the right clamping piece (21);
the telescopic end of the pushing piece (18) drives the left clamping piece (19) and the right clamping piece (21) to rotate relative to the plate body, and the left clamping piece (19) and the right clamping piece (21) rotate relative to the plate body to drive the two fasteners (23) and the fastener (23) fixed at the end part of the pushing piece (18) to clamp the burette from three directions.
5. The titration device according to claim 4, wherein the number of the vertical clamping mechanisms is two, the two vertical clamping mechanisms share the same pushing member (18), the pushing member (18) is an electric push rod, and the telescopic end of the electric push rod is fixedly connected with the third connecting rod (24); the upper end of the third connecting rod (24) is fixedly connected with a first push rod (25), and the first push rod (25) penetrates through a plate body (17) of the vertical clamping mechanism; the lower end of the third connecting rod (24) is fixedly connected with a second push rod (26), and the second push rod (26) penetrates through a plate body (17) of another vertical mechanism.
6. A titration device for use in pharmaceutical metrology according to claim 4, wherein a stop member is secured to each end of each of said blocks (16) for limiting the sliding of said second rectangular frame (15) out of said block (16).
7. A titration device according to claim 6, wherein the stop assembly comprises:
the limiting plate (27) is in sliding connection with a groove (28) formed in the block body (16); one end of the limiting plate (27) penetrating through the groove (28) is of an inclined slope structure;
and one end of the spring (29) is fixed in the groove (28), and the other end of the spring is fixedly connected with one end of the limiting plate (27) in the groove (28).
8. A titration device for use in pharmaceutical dosage according to claim 4, wherein the fastening member (23) is of rubber material; the left extrusion piece (3) and the right extrusion piece (4) are both arc-shaped plates, and rubber pads are fixed in the arc-shaped plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111335072.8A CN114047288A (en) | 2021-11-11 | 2021-11-11 | Titration apparatus used in pharmacy measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111335072.8A CN114047288A (en) | 2021-11-11 | 2021-11-11 | Titration apparatus used in pharmacy measurement |
Publications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115893002A (en) * | 2022-11-15 | 2023-04-04 | 浙江矽盛电子有限公司 | Verifying attachment after photovoltaic monocrystalline silicon piece production shaping |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115893002A (en) * | 2022-11-15 | 2023-04-04 | 浙江矽盛电子有限公司 | Verifying attachment after photovoltaic monocrystalline silicon piece production shaping |
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Application publication date: 20220215 |