CN219038947U

CN219038947U - Chemical analysis titration apparatus

Info

Publication number: CN219038947U
Application number: CN202223357897.2U
Authority: CN
Inventors: 黄振辉; 叶竹国; 林泗志; 林峰; 林朝森; 陶平
Original assignee: Xiamen Youfuli Biomedical Technology Co ltd
Current assignee: Xiamen Youfuli Biomedical Technology Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-16
Anticipated expiration: 2032-12-14

Abstract

The utility model relates to a chemical analysis titration device which comprises a test bed, wherein supporting feet are fixed on the lower surface of the test bed, a base is fixed on the upper surface of the test bed, an adjusting mechanism for adjusting the height is arranged on the upper surface of the base, a titration bracket is arranged on the outer side of the adjusting mechanism, a fixed plate is rotationally connected to the outer side of the titration bracket, sliding mechanisms for sliding a burette are arranged on the front side, the back side and the left side and the right side of the fixed plate, and a fixing frame is arranged at one end of the sliding mechanism far away from the fixed plate. This chemical analysis titration apparatus, cooperation through accessory plate, connecting rod, limiting plate, bolt and extension board under slide mechanism makes the experimenter drip the time can and the erlenmeyer flask bottleneck the position is adjusted when using the buret to cooperation adjustment mechanism makes the experimenter can be more convenient with the accurate inside of dripping into the erlenmeyer flask of reagent in the buret.

Description

Chemical analysis titration apparatus

Technical Field

The utility model relates to the technical field of chemical experimental instruments, in particular to a chemical analysis titration device.

Background

The chemical analysis refers to a method for determining chemical components or compositions of substances, and quantitative analysis measurement is needed for components in liquid during the chemical analysis, so that titration experiments are needed, a titration device is needed during the titration experiments, a burette and the like are needed in the titration devices commonly used at present, the titration device is often used in the chemical analysis of praziquantel intermediates, and the chemical analysis of the praziquantel intermediates is completed through the assistance of the titration device.

The utility model provides an example Chinese patent CN217561431U, which provides a titration device special for chemical analysis, belongs to the technical field of chemical experimental instruments, and aims to solve the problems that glass is easy to collide and damage during the existing chemical analysis titration, and the labor intensity in the shaking process is high, and comprises the following steps: the device comprises an experiment table top, a dropper support, a drip groove support block, an experiment burette, a titration groove, a glass conical flask and a shaking support; the lower end of the dropper support is arranged in the middle of the rear side of the experiment table; the drip groove supporting block is arranged in the middle of the experiment table top; the experimental burettes are provided with a plurality of groups, and the experimental burettes are fixedly connected with the outer side of the upper part of the burette bracket through a clamping mechanism; the titration groove is movably connected to the upper end of the titration groove supporting block; the glass conical flasks are provided with a plurality of groups, and the glass conical flasks are arranged at the inner side of the titration groove; the shaking supports are provided with two groups, and the lower ends of the two groups of shaking supports are fixedly connected to the middle part of the inner side of the titration groove; the utility model better protects the experimental instrument and reduces the labor intensity of operators.

The utility model has certain defects when in use, the height of the titration bracket cannot be adjusted, when an experimenter titrates the conical flask by using the burette on the titration bracket, if the titration bracket is too high, the dripped reagent deviates in the descending process, even the reagent is easy to drop on the outer side of the conical flask completely off the track when encountering wind, and when the titration bracket is too low, the condition inside the conical flask is easy to be shielded, so that the experimenter cannot clearly observe the change of the conical flask.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a chemical analysis titration device which has the advantages of being convenient for adjusting the height of a titration bracket and the like, and solves the problem that the height of the titration bracket cannot be adjusted.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a chemical analysis titration device, includes the test bench, the lower surface of test bench is fixed with the supporting legs, the upper surface of test bench is fixed with the base, the upper surface of base is equipped with the adjustment mechanism who is used for height-adjusting, the outside of adjustment mechanism is equipped with titration bracket, titration bracket's outside rotates and is connected with the fixed plate, the front of fixed plate, back and left and right sides are equipped with the slide mechanism who is used for sliding buret, slide mechanism keeps away from the one end of fixed plate and is equipped with the mount;

the utility model discloses a titration device, including fixing base, adjustment mechanism, the right side of fixing base is rotated and is connected with the bull stick, the right-hand member of bull stick is fixed with the handle, the outside of bull stick is fixed with the inside first helical gear that is located the fixing base, the outside meshing of first helical gear has the second helical gear, the inside of second helical gear is fixed with the driven lever of rotating the connection at fixing base inner chamber diapire, the top of driven lever is fixed with lead screw and threaded connection in titration support's inside, titration support's left and right sides all is fixed with the slider of sliding connection in the fixing base inside, fixing base inner chamber's left side wall is fixed with the backup pad.

Further, the right side of fixing base has seted up the mounting hole, the inside of mounting hole is fixed with first bearing, the bull stick is fixed in the inside of first bearing.

Further, the mounting groove has been seted up to the diapire of fixing base inner chamber, the inside of mounting groove is fixed with the second bearing, the driven lever is fixed in the inside of second bearing.

Further, the upper surface of fixing base has been seted up and has been supplied with the movable hole that runs through with titrating the support, and titrate support and fixing base clearance fit through the movable hole, the lower surface of titrating the support has been seted up and has been supplied with the screw thread groove of lead screw threaded connection.

Further, the left and right side walls of the inner cavity of the fixing seat are provided with sliding grooves and are positioned on the upper side of the supporting plate, and the sliding blocks are in clearance fit with the fixing seat through the sliding grooves.

Further, slide mechanism is including fixing respectively four connecting rods in fixed plate front, back and left and right sides, the one end that the fixed plate was kept away from to the connecting rod is fixed with the limiting plate, the outside sliding connection of limiting plate has the extension board and fixes the one side that is close to the fixed plate at the mount, the inside grafting of extension board has the bolt and the other end is pegged graft in the inside of connecting rod, the bolt top is fixed with the accessory plate.

Further, the locating hole that supplies to run through with the bolt is offered to the upper surface of extension board, and the extension board passes through the locating hole and peg graft in the inside of connecting rod, the constant head tank that supplies to peg graft is offered to the upper surface of extension board.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this chemical analysis titration apparatus, through slider, first helical gear, handle, bull stick, driven lever, second helical gear, lead screw and backup pad's cooperation messenger experimenter can be random adjust the height of titration support under adjustment mechanism's effect to make experimenter can be more convenient titrate the erlenmeyer flask, thereby also avoided the buret to shelter from the inside situation of changing of erlenmeyer flask.

2. This chemical analysis titration apparatus, cooperation through accessory plate, connecting rod, limiting plate, bolt and extension board under slide mechanism makes the experimenter drip the time can and the erlenmeyer flask bottleneck the position is adjusted when using the buret to cooperation adjustment mechanism makes the experimenter can be more convenient with the accurate inside of dripping into the erlenmeyer flask of reagent in the buret.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of an adjustment mechanism according to the present utility model;

fig. 3 is a schematic view of a sliding mechanism according to the present utility model.

In the figure: 1 supporting leg, 2 test bench, 3 adjustment mechanism, 301 slider, 302 first helical gear, 303 handle, 304 bull stick, 305 driven lever, 306 second helical gear, 307 lead screw, 308 backup pad, 309 fixing base, 4 mount, 5 slide mechanism, 501 accessory plate, 502 connecting rod, 503 limiting plate, 504 bolt, 505 extension board, 6 fixed plate, 7 titration support, 8 base.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the chemical analysis titration apparatus in this embodiment includes a test stand 2, a support leg 1 is fixed on the lower surface of the test stand 2, a base 8 is fixed on the upper surface of the test stand 2, an adjusting mechanism 3 for adjusting the height is arranged on the upper surface of the base 8, a titration bracket 7 is arranged on the outer side of the adjusting mechanism 3, a fixing plate 6 is rotatably connected on the outer side of the titration bracket 7, a sliding mechanism 5 for sliding a buret is arranged on the front side, the back side and the left side and the right side of the fixing plate 6, and a fixing frame 4 is arranged at one end of the sliding mechanism 5 far away from the fixing plate 6.

Referring to fig. 2, in order to facilitate adjusting the height of the titration bracket 7, the adjusting mechanism 3 in this embodiment includes a fixed seat 309 fixed on the upper surface of the base 8, a rotating rod 304 is rotatably connected to the right side of the fixed seat 309, a grip 303 is fixed to the right end of the rotating rod 304, a first bevel gear 302 located inside the fixed seat 309 is fixed to the outer side of the rotating rod 304, a second bevel gear 306 is meshed to the outer side of the first bevel gear 302, the first bevel gear 302 and the second bevel gear 306 are perpendicular to each other, a driven rod 305 rotatably connected to the bottom wall of the inner cavity of the fixed seat 309 is fixed to the inner side of the second bevel gear 306, a screw 307 is fixed to the top end of the driven rod 305 and is in threaded connection with the inside of the titration bracket 7, the grip 303 drives the first bevel gear 302 to rotate through the rotating rod 304, the driven rod 305 is driven to rotate through the driven rod 305, so as to adjust the height of the titration bracket 7, a slide 301 slidably connected to the inside the fixed seat 309 is fixed to the left and right sides of the titration bracket 7, a support plate 308 is fixed to the left side wall of the inner cavity of the fixed seat 309, and the support plate 308 is connected to the slide 301, and the slide maximum distance between the slide 301 and the slide 301 is prevented from colliding with the slide block 301.

The mounting hole has been seted up on the right side of fixing base 309, the inside of mounting hole is fixed with first bearing, the bull stick 304 is fixed in the inside of first bearing, the bull stick 304 rotates through first bearing and connects the right side at fixing base 309, the mounting groove has been seted up to the diapire of fixing base 309 inner chamber, the inside of mounting groove is fixed with the second bearing, driven lever 305 is fixed in the inside of second bearing, driven lever 305 rotates through the second bearing and connects the inside at fixing base 309, the movable hole that supplies to run through with titration support 7 is seted up to fixing base 309's upper surface, and titration support 7 passes through the movable hole and clearance fit with fixing base 309, the lower surface of titration support 7 has been seted up and has been supplied with screw 307 threaded groove of screw 307 threaded connection, the spout and be located the upside of backup pad 308 are all seted up to the left and right sides wall of fixing base 309 inner chamber, slider 301 passes through spout and fixing base 309 clearance fit, slider 301's shape is the cuboid.

It can be seen that the height of the titration bracket 7 can be adjusted randomly by an experimenter through the cooperation of the sliding block 301, the first bevel gear 302, the handle 303, the rotating rod 304, the driven rod 305, the second bevel gear 306, the screw rod 307 and the supporting plate 308, so that the experimenter can conveniently titrate the conical flask, and the condition that the burette shields the internal change of the conical flask is avoided.

Referring to fig. 3, in order to facilitate moving the burette, the sliding mechanism 5 in this embodiment includes four connecting rods 502 respectively fixed on the front, the back and the left and right sides of the fixed plate 6, one end of the connecting rod 502 far away from the fixed plate 6 is fixed with a limiting plate 503, the outer side of the limiting plate 503 is slidably connected with an extending plate 505 and fixed on one side of the fixed frame 4 close to the fixed plate 6, a plug pin 504 is inserted in the extending plate 505, the other end is inserted in the connecting rod 502, and an auxiliary plate 501 is fixed on the top end of the plug pin 504.

The through hole that is used for connecting rod 502 to run through is offered to the one side that extension board 505 is close to fixed plate 6, and connecting rod 502 passes through-hole and extension board 505 clearance fit, the inside of extension board 505 has been offered and is used for the spacing groove of limiting plate 503 sliding connection, the length of limiting plate 503 is greater than the length of through-hole inner chamber, the locating hole that is used for running through with bolt 504 is offered to the upper surface of extension board 505, and extension board 505 passes through the locating hole grafting in the inside of connecting rod 502, the locating groove that is used for pegging graft with bolt 504 is offered to the upper surface of extension board 505.

So the sliding mechanism 5 is matched with the auxiliary plate 501, the connecting rod 502, the limiting plate 503, the bolt 504 and the extending plate 505 to enable an experimenter to adjust the positions of the bottle mouth of the conical flask when the experimenter uses the buret to drip, and is matched with the adjusting mechanism 3 to enable the experimenter to more conveniently and accurately drip the reagent in the buret into the conical flask.

The working principle of the embodiment is as follows:

(1) When the titration is carried out, the handle 303 is rotated firstly, the handle 303 drives the first bevel gear 302 to rotate through the rotating rod 304, the second bevel gear 306 drives the driven rod 305 to rotate together with the first bevel gear 302, the driven rod 305 drives the screw rod 307 to rotate through the driven rod 305, the titration bracket 7 moves upwards or downwards along with the rotation of the screw rod 307, meanwhile, the sliding block 301 slides upwards or downwards along with the titration bracket 7 to finish the height adjustment of the titration bracket 7, and the adjusting mechanism 3 enables an experimenter to adjust the height of the titration bracket 7 at will through the matching of the sliding block 301, the first bevel gear 302, the handle 303, the rotating rod 304, the driven rod 305, the second bevel gear 306, the screw rod 307 and the supporting plate 308, so that the experimenter can conveniently titrate a conical bottle, and the situation that the burette shields the internal change of the conical bottle is avoided.

(2) After the height of the titration bracket 7 is adjusted, the auxiliary plate 501 is grasped to pull upwards so that the bolt 504 moves upwards along with the auxiliary plate 501 and gradually separates from the extension plate 505, when the bolt 504 is separated from the extension plate 505, the buret on the fixing frame 4 can be dragged to slide, and the sliding mechanism 5 enables an experimenter to adjust according to the position of the bottle mouth of the conical flask when using the buret to drip through the cooperation of the auxiliary plate 501, the connecting rod 502, the limiting plate 503, the bolt 504 and the extension plate 505, and the experimenter can more conveniently drip the reagent in the buret into the conical flask accurately by matching with the adjusting mechanism 3.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A chemical analysis titration apparatus comprising a test bench (2), characterized in that: the automatic titration device is characterized in that a supporting foot (1) is fixed on the lower surface of the test stand (2), a base (8) is fixed on the upper surface of the test stand (2), an adjusting mechanism (3) for adjusting the height is arranged on the upper surface of the base (8), a titration bracket (7) is arranged on the outer side of the adjusting mechanism (3), a fixing plate (6) is rotatably connected to the outer side of the titration bracket (7), sliding mechanisms (5) for sliding a buret are arranged on the front surface, the back surface and the left side and the right side of the fixing plate (6), and a fixing frame (4) is arranged at one end, far away from the fixing plate (6), of the sliding mechanism (5);

adjustment mechanism (3) are including fixing base (309) at base (8) upper surface, the right side rotation of fixing base (309) is connected with bull stick (304), the right-hand member of bull stick (304) is fixed with handle (303), the outside of bull stick (304) is fixed with first helical gear (302) that are located fixing base (309) inside, the outside meshing of first helical gear (302) has second helical gear (306), the inside of second helical gear (306) is fixed with driven lever (305) of rotating connection at fixing base (309) inner chamber diapire, the top of driven lever (305) is fixed with lead screw (307) and threaded connection in the inside of titration support (7), the left and right sides of titration support (7) all is fixed with slider (301) of sliding connection in fixing base (309) inside, the left side wall of fixing base (309) inner chamber is fixed with backup pad (308).

2. A chemical analysis titration apparatus according to claim 1, wherein: the right side of fixing base (309) has seted up the mounting hole, the inside of mounting hole is fixed with first bearing, bull stick (304) are fixed in the inside of first bearing.

3. A chemical analysis titration apparatus according to claim 1, wherein: the bottom wall of the inner cavity of the fixing seat (309) is provided with a mounting groove, a second bearing is fixed in the mounting groove, and the driven rod (305) is fixed in the second bearing.

4. A chemical analysis titration apparatus according to claim 1, wherein: the upper surface of fixing base (309) has offered the movable hole that supplies to run through with titration support (7), and titration support (7) pass through movable hole and fixing base (309) clearance fit, the lower surface of titration support (7) has offered the screw thread groove that supplies with lead screw (307) threaded connection.

5. A chemical analysis titration apparatus according to claim 1, wherein: the sliding grooves are formed in the left side wall and the right side wall of the inner cavity of the fixing seat (309) and are located on the upper side of the supporting plate (308), and the sliding blocks (301) are in clearance fit with the fixing seat (309) through the sliding grooves.

6. A chemical analysis titration apparatus according to claim 1, wherein: the sliding mechanism (5) comprises four connecting rods (502) which are respectively fixed on the front side, the back side and the left side and the right side of the fixed plate (6), one end of the connecting rod (502) away from the fixed plate (6) is fixed with a limiting plate (503), the outer side of the limiting plate (503) is connected with an extending plate (505) in a sliding mode and is fixed on one side, close to the fixed plate (6), of the fixed frame (4), a bolt (504) is inserted into the extending plate (505), the other end of the extending plate is inserted into the connecting rod (502), and an auxiliary plate (501) is fixed on the top end of the bolt (504).

7. A chemical analysis titration apparatus according to claim 6, wherein: the upper surface of extension board (505) has offered the locating hole that supplies to run through with bolt (504), and extension board (505) are pegged graft in the inside of connecting rod (502) through the locating hole, the constant head tank that supplies to peg graft with bolt (504) is offered to the upper surface of extension board (505).