CN216870479U - Novel acid-base titration device - Google Patents
Novel acid-base titration device Download PDFInfo
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- CN216870479U CN216870479U CN202123370961.6U CN202123370961U CN216870479U CN 216870479 U CN216870479 U CN 216870479U CN 202123370961 U CN202123370961 U CN 202123370961U CN 216870479 U CN216870479 U CN 216870479U
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Abstract
The utility model relates to a novel acid-base titration device which comprises a support unit, a first titration unit, a second titration unit, a container unit and a stirring unit. The titration unit capable of carrying out fast and slow titration is utilized, so that the titration time can be reduced, and the problem of overdose titration can be avoided, thereby ensuring that accurate titration data are obtained, and further calculating accurate free acid/total acid and free alkali/total alkali; by utilizing the telescopic support unit, after titration is finished, the eyes of experimenters are leveled with the concave part of the liquid level, so that the accuracy of reading is ensured; the container unit is connected with the bracket unit in an embedded manner, so that the problem of displacement of the container unit is avoided; the container unit is designed in a sealing way, so that liquid splashing in the titration process is avoided; the stirring unit is used for stirring and uniformly mixing the container unit, so that the titration time can be shortened, and the over titration is avoided.
Description
Technical Field
The utility model relates to the technical field of cleaning processes, in particular to a novel acid-base titration device.
Background
In order to better study the industrial cleaning agent, indexes such as free acid/total acid, free base/total base and the like need to be measured, the indexes are generally titrated by using an acid-base burette, and the volume number of titration is calculated, but when the titration end point is approached, the titration, the phenomenon of uneven mixing of the titration solution or splashing easily occurs due to slight poor control, and the measured numerical value is inaccurate.
The existing titration method has the following problems:
(1) when the titration is carried out, the titration speed is not easy to control, so that the titration time is too long;
(2) when the titration end point is approached, the amount of half drops or one drop is not easy to control, and the titration is easy to pass, so that the titration data is inaccurate;
(3) after titration is finished, eyes are required to be level with the concave surface of the liquid level during reading, but the burette is sometimes too high and needs to be taken down from an iron stand so as to be easy to read;
(4) in the titration process, experimenters are required to continuously stir the titration solution by using a glass rod so as to ensure that the titration solution is fully mixed with the standard solution.
At present, no effective solution is provided for the problems of long titration time, inaccurate titration dosage, difficult data reading, complex manual operation and the like in the related technology.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel acid-base titration device aiming at the defects in the prior art, and aims to solve the problems of long titration time, inaccurate titration dosage, difficulty in reading data, complex manual operation and the like in the related technology.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a novel acid-base titration device, comprising:
a stand unit, the height of which is adjustable;
the first titration unit is detachably arranged on one side of the bracket unit and is used for carrying out quick alkaline titration and slow alkaline titration;
the second titration unit is detachably arranged on the other side of the bracket unit and is used for carrying out quick acid titration and slow acid titration;
the container unit is detachably embedded into the bracket unit and is communicated with any one of the first titration unit and the second titration unit, and the titration end of the first titration unit or the titration end of the second titration unit is positioned in the container unit;
and the stirring unit is arranged in the container unit and is used for uniformly stirring and mixing the liquid in the container unit.
In some of these embodiments, the rack unit comprises:
a base element;
the groove elements are symmetrically arranged on the upper surface of the base element and used for embedding and placing the container unit;
a first support element disposed perpendicular to an upper surface of the base element;
a second support element adjustably positionable with the first support element;
and the fixing elements are symmetrically arranged on two sides of the second supporting element and are used for being detachably connected with the first titration unit and the second titration unit respectively.
In some of these embodiments, the rack unit further comprises:
a first locking member provided at an upper portion of the first support member in an axial direction of the first support member;
and the second locking element is arranged at the lower part of the second support element along the axial direction of the second support element and corresponds to the first locking element.
In some of these embodiments, the rack unit further comprises:
a third locking element removably coupled to the first locking element and the second locking element, respectively.
In some of these embodiments, the first drop unit comprises:
the first quick titration element is detachably arranged on one side of the bracket unit and is used for carrying out quick basic titration;
the first slow titration element is detachably arranged on one side of the bracket unit and is used for carrying out slow basic titration;
a first drop head element in communication with the first fast titration element and the first slow titration element, respectively, and extending into the interior of the container unit.
In some of these embodiments, the second titration unit comprises:
the second quick titration element is detachably arranged on one side of the bracket unit and is used for carrying out quick acid titration;
the second slow titration element is detachably arranged on one side of the bracket unit and is used for carrying out slow acid titration;
and the second dripper element is communicated with the second fast titration element and the second slow titration element respectively and extends into the container unit.
In some of these embodiments, the container unit comprises:
a container member detachably fitted into the holder unit arrangement;
a sealing cover member detachably provided to a top of the container member;
a first through-hole element disposed through the sealing cap element for use by a titration end of the first titration unit or a titration end of the second titration unit.
In some of these embodiments, the container unit further comprises:
a second through-hole element disposed through the sealing cover element;
a bearing element disposed on the second through-hole element and rotationally connected with the stirring element.
In some of these embodiments, the stirring unit comprises:
a drive element disposed at a top of the container unit;
and the stirring element is arranged in the container unit, is connected with the driving element and is used for rotating under the action of the driving element so as to stir and uniformly mix the liquid in the container unit.
In some of these embodiments, further comprising:
a first fluid infusion unit in communication with the first drop unit for supplementing the first drop unit with an alkaline titration solution;
and the second liquid supplementing unit is communicated with the second titration unit and is used for supplementing the acid type titration liquid to the second titration unit.
In some of these embodiments, the first fluid replacement unit comprises:
the first liquid storage element is used for storing the basic titration solution;
and one end of the first conveying pipe element is communicated with the first liquid storage element, and the other end of the first conveying pipe element is communicated with the first titration unit, so that the basic titration liquid of the first liquid storage element is conveyed to the first titration unit.
In some of these embodiments, the second fluid replacement unit comprises:
the second liquid storage element is used for storing the acid-type titration liquid;
and one end of the second conveying pipe element is communicated with the second liquid storage element, and the other end of the second conveying pipe element is communicated with the second titration unit, so that the acid type titration liquid of the second liquid storage element is conveyed to the second titration unit.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical effects:
according to the novel acid-base titration device, the titration units capable of carrying out rapid titration and slow titration are utilized, so that the titration time can be shortened, and the problem of excessive titration can be avoided, so that accurate titration data can be obtained, and accurate free acid/total acid and free base/total base can be calculated; by utilizing the telescopic support unit, after titration is finished, the eyes of experimenters are leveled with the concave part of the liquid level, so that the accuracy of reading is ensured; the container unit is connected with the bracket unit in an embedded manner, so that the problem of displacement of the container unit is avoided; the container unit is designed in a sealing way, so that liquid splashing in the titration process is avoided; the stirring unit is used for uniformly stirring and mixing the container unit, so that the titration time can be shortened, and the over titration is avoided.
Drawings
FIG. 1 is a schematic diagram of a novel acid-base titration apparatus according to an embodiment of the present disclosure;
FIGS. 2 a-2 b are schematic views of a stent unit according to an embodiment of the utility model;
FIG. 3 is a schematic diagram of a first titration unit according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a second titration unit according to an embodiment of the present invention;
FIG. 5 is a schematic view of a container unit according to an embodiment of the utility model;
FIG. 6 is a schematic view of a stirring unit according to an embodiment of the utility model;
FIG. 7 is a schematic view of a first fluid replacement unit according to an embodiment of the present disclosure;
fig. 8 is a schematic view of a second fluid replacement unit according to an embodiment of the present invention.
Wherein the reference numerals are: 10. a holder unit; 11. a base element; 12. a recess element; 13. a first support element; 14. a second support element; 15. a fixing element; 16. a first locking element; 17. a second locking element; 18. a third locking element;
20. a first titration unit; 21. a first fast titration element; 22. a first slow titration element; 23. a first drop head element;
30. a second titration unit; 31. a second fast titration element; 32. a second slow titration element; 33. a second dripper element;
40. a container unit; 41. a container member; 42. a sealing cover member; 43. a first via element; 44. a second through-hole element; 45. a bearing element;
50. a stirring unit; 51. a drive element; 52. a stirring element;
60. a first fluid infusion unit; 61. a first reservoir element; 62. a first duct element;
70. a second fluid infusion unit; 71. a second reservoir element; 72. a second duct element.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
An exemplary embodiment of the present invention, as shown in fig. 1, is a novel acid-base titration apparatus, which includes a holder unit 10, a first drop unit 20, a second drop unit 30, a container unit 40, and a stirring unit 50. Wherein, the bracket unit 10 is arranged on a horizontal plane, and the height thereof is adjustable; the first drop unit 20 is detachably arranged at one side of the bracket unit 10 and is used for performing quick alkaline titration and slow alkaline titration; the second titration unit 30 is detachably arranged at the other side of the bracket unit 10 and is used for carrying out quick acid titration and slow acid titration; the container unit 40 is detachably embedded in the bracket unit 10 and is communicated with any one of the first titration unit 20 and the second titration unit 30, and the titration end of the first titration unit 20 or the titration end of the second titration unit 30 is positioned in the container unit 40; the stirring unit 50 is placed in the container unit 40 for uniformly stirring the liquid in the container unit 40.
As shown in fig. 2a, the holder unit 10 comprises a base element 11, a recess element 12, a first support element 13, a second support element 14 and a fixation element 15. Wherein the base element 11 is arranged in a horizontal plane; the groove elements 12 are symmetrically arranged on the upper surface of the base element 11 and are respectively positioned below the first titration unit 20 and the second titration unit 30, and are used for embedding and placing the container unit 40; the first support element 13 is arranged perpendicular to the upper surface of the base element 11; the second supporting element 14 and the first supporting element 13 are arranged in an adjustable mode, and the adjustable mode comprises a nested sliding mode and a non-nested sliding mode; the fixing elements 15 are symmetrically arranged on both sides of the second supporting element 14 for detachable connection with the first and second titration units 20, 30, respectively.
The base element 11 is circular in cross-section and rectangular or conical in longitudinal section. In the case of a conical shape, the liquid is prevented from staying on the upper surface of the base member 11.
The recess elements 12 are two, one recess element 12 being located below the first titration unit 20 and the other recess element 12 being located below the second titration unit 30, each recess element 12 being capable of receiving only one receptacle unit 40.
The inner bottom surface of the recess member 12 is lower than the upper surface of the base member 11 for movement of the placement container unit 40 in the case of placement of the container unit 40.
In some of these embodiments, the trough member 12 is circular in cross-section.
The first support element 13 is a first support rod, which may be circular or rectangular in cross-section.
In some of these embodiments, the first supporting member 13 and the groove member 12 may be disposed in a straight line shape, or may be disposed in a delta shape.
The second support member 14 is a second support rod, which may be circular or rectangular in cross-section.
In some of these embodiments, the first support element 13 and the second support element 14 are both circular to facilitate the sliding connection.
Specifically, the inner diameter of the first support element 13 is equal to the outer diameter of the second support element 14, or the outer diameter of the first support element 13 is equal to the inner diameter of the second support element 14.
By the above-described nested sliding connection, the first support member 13 can be prevented from being separated from the second support member 14.
The fixing element 15 is arranged parallel to the base element 11, i.e. the fixing element 15 is arranged perpendicular to the second support element 14.
Specifically, the fixing member 15 includes a first fixing member and a second fixing member. Wherein, the first fixing member is arranged near the upper end of the second supporting element 14, and the left and right ends of the first fixing member are respectively connected with the first titration unit 20 and the second titration unit 30; the second fixing member is disposed near the lower end of the second supporting member 14, the left and right ends of the second fixing member are respectively connected to the first titration unit 20 and the second titration unit 30, and the length of the first fixing member is greater than that of the second fixing member.
In some of these embodiments, the holding element 15 further comprises a clamp comprising a resiliently resettable clamp (using a spring) and an open-close clamp (using a torsion spring) to hold the first and second titration units 20, 30.
Specifically, the two ends of the first fixing member are respectively provided with a clamping member for respectively clamping one side of the first titration unit 20 away from the second support element 14 and one side of the second titration unit 30 away from the second support element 14; the second fixing member is provided at both ends thereof with holding members for holding a side of the first drop unit 20 close to the second support member 14 and a side of the second drop unit 30 close to the second support member 14, respectively.
In some of these embodiments, the fixing element 15 is detachably connected (clamped) or fixedly connected (integrally formed) to the second support element 14.
Further, the rack unit 10 further includes a first locking member 16 and a second locking member 17. Wherein the first locking member 16 is disposed at an upper portion of the first support member 13 in an axial direction of the first support member 13; the second locking member 17 is provided at a lower portion of the second support member 14 in the axial direction of the second support member 14.
In some of these embodiments, the first locking element 16 is a locking hole and the second locking element 17 is a resilient locking block. Specifically, the number of the first locking elements 16 is several, the several first locking elements 16 are arranged at intervals on the side wall of the first supporting element 13, and the second locking element 17 is connected with any one of the first locking elements 16, so as to fix the relative positions of the first supporting element 13 and the second supporting element 14. At this time, the first supporting element 13 is disposed to cover the outer side of the second supporting element 14. The second locking element 17 is pressed to disengage the second locking element 17 from the first locking element 16, and then the second support element 14 is moved to a specific position, the second locking element 17 is reset to cooperate with the other first locking element 16, thereby completing the locking.
In some of these embodiments, the first locking element 16 is a resilient locking block and the second locking element 17 is a locking hole. Specifically, the number of the second locking elements 17 is several, the several second locking elements 17 are arranged at intervals on the side wall of the second supporting element 14, and the first locking element 16 is connected with any one of the second locking elements 17, so as to fix the relative position of the first supporting element 13 and the second supporting element 14. At this time, the second supporting element 14 is disposed to cover the outer side of the first supporting element 13. The first locking element 16 is pressed to separate the second locking element 17 from the first locking element 16, and then the second support element 14 is moved to a specific position, the first locking element 16 is reset to cooperate with the other second locking element 17, thereby completing the locking.
In the above embodiment, the locking hole is provided through only one side wall of the support member, i.e., the other side wall of the support member corresponding to the locking hole is of a solid structure.
Further, as shown in fig. 2b, the rack unit 10 further comprises a third locking element 18, and the third locking element 18 is detachably connected with the first locking element 16 and the second locking element 17 respectively.
Specifically, the first locking elements 16 are locking holes, the second locking elements 17 are locking holes, the first locking elements 16 and the second locking elements 17 are respectively provided in a plurality, the plurality of first locking elements 16 are arranged on the side wall of the first support element 13 at intervals and penetrate through the first support element 13, and the plurality of second locking elements 17 are arranged on the side wall of the second support element 14 at intervals and penetrate through the second support element 14.
The third locking element 18 at least comprises a locking rod which is in a shape of a "T" and is used for sequentially passing through the first locking element 16, the second locking element 17 and the first locking element 16 (or the second locking element 17, the first locking element 16 and the second locking element 17) which are positioned at the same horizontal plane.
Further, the third locking element 18 further includes a locking cap that is detachably connected (screwed) to the other end of the locking rod, thereby completing the locking.
As shown in fig. 3, the first drop unit 20 comprises a first fast titration element 21, a first slow titration element 22 and a first drop head element 23. Wherein, the first fast titration element 21 is detachably arranged at one side of the bracket unit 10 for fast basic titration; the first slow titration element 22 is detachably arranged at one side of the bracket unit 10 and is used for carrying out slow alkaline titration; the first drip head element 23 communicates with the first fast titration element 21 and the first slow titration element 22, respectively, and penetrates into the interior of the container unit 40.
In particular, the first quick titration element 21 is removably arranged on one side of the second support element 14 and is removably connected to the fixing element 15; the first slow titration element 22 is detachably arranged on one side of the second support element 14 and is detachably connected to the fixation element 15.
More specifically, the first fast titration element 21 is removably attached to the holder at one end of the first fixture and the first slow titration element 22 is removably attached to the holder at one end of the second fixture.
In some of these embodiments, the first fast titration element 21 is a basic fast titration tube and the first slow titration element 22 is a basic slow titration tube.
Wherein, the slow burette is a half burette.
Wherein the outer surface of the first fast titration element 21 is provided with a scale and the outer surface of the first slow titration element 22 is provided with a scale.
In some of these embodiments, first dripper element 23 is a tee with a first end in communication with first fast titrating element 21, a second end in communication with first slow titrating element 22, and a third end extending into the interior of vessel unit 40.
Wherein, in case the first fast titration element 21 is active, the first slow titration element 22 is inactive; in case the first slow titration element 22 is active, the first fast titration element 21 is not active.
Wherein the first drop cell 20 further comprises a first valve element and a second valve element. Wherein the first valve element is arranged at the connection position of the first fast titration element 21 and the first drop head element 23, and the second valve element is arranged at the connection position of the first slow titration element 22 and the first drop head element 23.
As shown in fig. 4, the second titration unit 30 comprises a second fast titration element 31, a second slow titration element 32 and a second dripper element 33. Wherein, the second fast titration element 31 is detachably arranged at one side of the bracket unit 10 and is used for carrying out fast acid titration; the second slow titration element 32 is detachably arranged at one side of the holder unit 10 for performing slow acid titration; the second dripper element 33 communicates with the second fast titration element 31, the second slow titration element 32, respectively, and penetrates inside the container unit 40.
Specifically, the second quick titration element 31 is detachably disposed at the other side of the second support element 14 and is detachably connected with the fixing element 15; a second slow titration element 32 is removably mounted to the other side of the second support member 14 and is removably connected to the mounting member 15.
More specifically, the second fast titration element 31 is removably attached to the grip at the other end of the first holder and the second slow titration element 32 is removably attached to the grip at the other end of the second holder.
In some of these embodiments, the second fast titration element 31 is an acid type fast titration tube and the second slow titration element 32 is an acid type slow titration tube.
Wherein, the slow burette is a half burette.
Wherein, the outer surface of the second fast titration element 31 is provided with a scale, and the outer surface of the second slow titration element 32 is provided with a scale.
In some of these embodiments, second dripper element 33 is a tee with a first end in communication with second fast titrating element 31, a second end in communication with second slow titrating element 32, and a third end extending into the interior of vessel unit 40.
Wherein, in case the second fast titration element 31 is active, the second slow titration element 32 is inactive; in case the second slow titration element 32 is active, the second fast titration element 31 is not active.
Wherein the second titration unit 30 further comprises a third valve element and a fourth valve element. Wherein the third valve element is arranged at the connecting position of the second fast titration element 31 and the second dripper element 33, and the fourth valve element is arranged at the connecting position of the second slow titration element 32 and the second dripper element 33.
As shown in fig. 5, the container unit 40 includes a container member 41, a sealing cover member 42, and a first through-hole member 43. Wherein the container member 41 is detachably set embedded in the holder unit 10; the sealing cover member 42 is detachably provided on the top of the container member 41; a first through-hole member 43 is provided through the sealing cap member 42 for use with either the titration end of the first titration unit 20 or the titration end of the second titration unit 30.
In particular, the container element 41 is detachably arranged to engage with the recess element 12, and the first through-hole element 43 is adapted to allow the third end of the first drip element 23 or the third end of the second drip element 33 to extend.
In some of these embodiments, the container element 41 is a measuring cup, a beaker, or the like.
In some of these embodiments, the sealing cover member 42 is snap fit with the top of the container member 41.
In some of these embodiments, the axial direction of the first through-hole member 43 is parallel to but not collinear with the axial direction of the seal cover member 42.
Further, the container unit 40 further includes a second through-hole member 44 and a bearing member 45. Wherein the second through-hole member 44 is disposed through the sealing cover member 42; the bearing member 45 is provided to the second through-hole member 44, and is rotatably connected to the stirring unit 50.
Specifically, the axial direction of the second through-hole member 44 is collinear with the axial direction of the seal cover member 42, the outer edge of the bearing member 45 is fixedly connected to the second through-hole member 44, and the inner edge of the bearing member 45 is rotatably connected to the stirring unit 50.
As shown in fig. 6, the stirring unit 50 includes a driving member 51 and a stirring member 52. Wherein the driving member 51 is provided at the top of the container unit 40; the stirring element 52 is disposed inside the container unit 40, and is connected to the driving element 51, and is configured to rotate under the action of the driving element 51, so as to stir and mix the liquid in the container unit 40.
Specifically, the driving member 51 is provided on the top of the sealing cover member 42, the output end thereof is provided through the sealing cover member 42, and the stirring member 52 is provided inside the container member 41.
In some of these embodiments, the stirring unit 50 and the sealing cover member 42 are inseparable structures.
In some embodiments, the stirring unit 50 and the sealing cover member 42 are separable structures, in which case, the connecting position of the output end of the driving member 51 and the stirring member 52 is rotatably connected with the bearing member 45, and the driving member 51 and the stirring member 52 are detachably connected.
In some of these embodiments, the drive element 51 is a micro-motor with its own power supply.
In some of these embodiments, the drive element 51 is a rotating cap that is threaded or nested with the top end of the stirring element 52, and is manually rotated to rotate the stirring element 52.
In some of these embodiments, the stirring element 52 comprises a stirring shaft and a plurality of blades disposed about the stirring shaft.
Further, the novel acid-base titration device further comprises a first liquid supplementing unit 60 and a second liquid supplementing unit 70. Wherein the first fluid replacement unit 60 is in communication with the first drop unit 20 for replacing the basic titration solution with the first drop unit 20; the second liquid replenishing unit 70 is communicated with the second titration unit 30, and is used for replenishing the acid type titration liquid to the second titration unit 30.
As shown in fig. 7, the first fluid infusion unit 60 includes a first fluid storage element 61 and a first delivery tube element 62. The first liquid storage element 61 is used for storing basic titration liquid; the first delivery tube element 62 has one end communicating with the first reservoir element 61 and the other end communicating with the first drop unit 20, and is used for delivering the basic titration liquid of the first reservoir element 61 to the first drop unit 20.
In particular, the first transfer tube element 62 communicates with the first fast titration element 21 or the first slow titration element 22.
In some of these embodiments, the first reservoir element 61 is a reservoir, a bottle.
As shown in fig. 8, the second fluid replenishing unit 70 includes a second fluid storage member 71 and a second delivery pipe member 72. Wherein the second reservoir element 71 is used for storing an acid-type titration solution; the second delivery pipe element 72 has one end communicating with the second reservoir element 71 and the other end communicating with the second titration unit 30 for delivering the acidic titration liquid from the second reservoir element 71 to the second titration unit 30.
In particular, the second duct element 72 communicates with the second fast titration element 31 or the second slow titration element 32.
In some of these embodiments, the second reservoir component 71 is a reservoir, a bottle.
The using method of the utility model is as follows:
metering the liquid to be titrated into the container member 41, and covering the container member 41 with the sealing cover member 42;
adjusting the second support member 14 to extend the first dripper member 23 (or the second dripper member 33) through the first through-hole member 43 into the interior of the container member 41 without contacting the liquid to be titrated;
activating the driving member 51 to cause the stirring member 52 to stir the liquid of the container member 41;
performing a fast titration using the first fast titration element 21 (or the second fast titration element 31);
in the case of approaching the end of the titration, the first fast titration element 21 (or the second fast titration element 31) is stopped and a slow titration is performed using the first slow titration element 22 (or the second slow titration element 32);
in the event that the end of titration is reached, stopping the first slow titration element 22 (or the second slow titration element 32);
adjusting the second support element 14 to move the first dripper element 23 (or the second dripper element 33) out of the first through hole element 43;
the titration amount of the first fast titration element 21 (or the second fast titration element 31) and the titration amount of the first slow titration element 22 (or the second slow titration element 32) are recorded, the total titration amount is calculated, and the accurate free acid/total acid (or free base/total base) is calculated.
The utility model has the advantages that the titration unit which can carry out fast and slow titration is utilized, so that the titration time can be reduced, and the problem of overdose titration can be avoided, thereby ensuring that accurate titration data are obtained, and further calculating accurate free acid/total acid and free base/total base; by utilizing the telescopic support unit, after titration is finished, the eyes of experimenters are leveled with the concave part of the liquid level, so that the accuracy of reading is ensured; the container unit is connected with the bracket unit in an embedded manner, so that the problem of displacement of the container unit is avoided; the container unit is designed in a sealing way, so that liquid splashing in the titration process is avoided; the stirring unit is used for uniformly stirring and mixing the container unit, so that the titration time can be shortened, and the over titration is avoided.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the utility model.
Claims (10)
1. A novel acid-base titration device is characterized by comprising:
a stand unit, a height of which is adjustable;
the first titration unit is detachably arranged on one side of the bracket unit and is used for carrying out quick alkaline titration and slow alkaline titration;
the second titration unit is detachably arranged on the other side of the bracket unit and is used for carrying out quick acid titration and slow acid titration;
the container unit is detachably embedded into the bracket unit and is communicated with any one of the first titration unit and the second titration unit, and the titration end of the first titration unit or the titration end of the second titration unit is positioned in the container unit;
and the stirring unit is arranged in the container unit and is used for uniformly stirring and mixing the liquid in the container unit.
2. The novel acid-base titration device according to claim 1, wherein the holder unit comprises:
a base element;
the groove elements are symmetrically arranged on the upper surface of the base element and used for embedding and placing the container unit;
a first support element disposed perpendicular to an upper surface of the base element;
a second support element adjustably positionable with the first support element;
and the fixing elements are symmetrically arranged on two sides of the second supporting element and are used for being detachably connected with the first titration unit and the second titration unit respectively.
3. The novel acid-base titration device according to claim 2, wherein said holder unit further comprises:
a first locking member provided at an upper end of the first support member in an axial direction of the first support member;
and the second locking element is arranged at the lower end of the second support element along the axial direction of the second support element and corresponds to the first locking element.
4. The novel acid-base titration device according to claim 3, wherein said holder unit further comprises:
a third locking element removably coupled to the first locking element and the second locking element, respectively.
5. The novel acid-base titration device according to claim 1, wherein said first drop unit comprises:
the first quick titration element is detachably arranged on one side of the bracket unit and is used for carrying out quick basic titration;
the first slow titration element is detachably arranged on one side of the bracket unit and is used for carrying out slow basic titration;
a first drop head element in communication with the first fast titration element, the first slow titration element, respectively, and extending into the interior of the container unit.
6. The novel acid-base titration device according to claim 1, wherein the second titration unit comprises:
the second quick titration element is detachably arranged on one side of the bracket unit and is used for carrying out quick acid titration;
the second slow titration element is detachably arranged on one side of the bracket unit and is used for carrying out slow acid titration;
and the second dripper element is communicated with the second fast titration element and the second slow titration element respectively and extends into the container unit.
7. The novel acid-base titration device according to claim 1, wherein said container unit comprises:
a container member detachably fitted into the holder unit arrangement;
a sealing cover member detachably provided to a top of the container member;
a first through-hole member disposed through the sealing cap member for use with either the titration end of the first titration unit or the titration end of the second titration unit.
8. The novel acid-base titration device according to claim 7, wherein said container unit further comprises:
a second through-hole member disposed through the sealing cover member;
a bearing element disposed at the second through-hole element and rotatably connected with the stirring unit.
9. The novel acid-base titration device according to claim 1, wherein the stirring unit comprises:
a drive element disposed at a top of the container unit;
and the stirring element is arranged in the container unit, is connected with the driving element and is used for rotating under the action of the driving element so as to stir and uniformly mix the liquid in the container unit.
10. The novel acid-base titration device according to claim 1, further comprising:
a first fluid infusion unit in communication with the first drop unit for supplementing the first drop unit with an alkaline titration solution;
and the second liquid supplementing unit is communicated with the second titration unit and is used for supplementing the acid type titration liquid to the second titration unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123370961.6U CN216870479U (en) | 2021-12-29 | 2021-12-29 | Novel acid-base titration device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123370961.6U CN216870479U (en) | 2021-12-29 | 2021-12-29 | Novel acid-base titration device |
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