CN215910421U - Acid burette - Google Patents
Acid burette Download PDFInfo
- Publication number
- CN215910421U CN215910421U CN202121875625.4U CN202121875625U CN215910421U CN 215910421 U CN215910421 U CN 215910421U CN 202121875625 U CN202121875625 U CN 202121875625U CN 215910421 U CN215910421 U CN 215910421U
- Authority
- CN
- China
- Prior art keywords
- titration
- burette
- movable plug
- hole
- outer tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses an acid burette, comprising: a burette body, a titration flow control mechanism and a titration head; wherein, the upper end of the titration flow control mechanism is connected with the body of the burette, and the lower end is connected with the titration head; the titration flow control mechanism comprises an outer tube, a movable plug, a screw rod and a nut; the outer pipe is transversely arranged, the upper end of the outer pipe is connected with the body of the burette, and the lower end of the outer pipe is connected with the titration head; the movable plug is arranged in the outer tube and can slide along the axis of the outer tube; a first titration hole, a second titration hole and a third titration hole with different inner diameters are arranged on the movable plug along the axis of the movable plug; the nut is fixed at the end part of the outer pipe; the first end of the screw rod extends into the outer tube and is rotationally connected with the end face of the movable plug, and the second end of the screw rod extends out of the outer tube after being in threaded connection with the nut. The application solves the problem that the acid burette in the related art controls the flow of the solution through the glass piston at the lower end and adjusts the solution more inconveniently.
Description
Technical Field
The utility model relates to the technical field of burettes, in particular to an acid burette.
Background
Acid burettes, titration instruments commonly used in analytical chemistry, can be used for acidic solutions, can also be used for strongly oxidizing solutions, and cannot be used for alkaline solutions. Can be used for carrying out acid-base neutralization titration tests and the like.
The current acid burette controls the flow of solution through a glass piston at the lower end, and is inconvenient to adjust.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an acid burette to solve the problem that the acid burette in the related art controls the flow of a solution through a glass piston at the lower end and is inconvenient to adjust.
This embodiment provides an acid burette, comprising: a burette body, a titration flow control mechanism and a titration head; wherein the content of the first and second substances,
the upper end of the titration flow control mechanism is connected with the body of the titration tube, and the lower end of the titration flow control mechanism is connected with the titration head;
the titration flow control mechanism comprises an outer tube, a movable plug, a screw rod and a nut; the outer pipe is transversely arranged, the upper end of the outer pipe is connected with the body of the burette, and the lower end of the outer pipe is connected with the titration head;
the movable plug is arranged in the outer tube and can slide along the axis of the outer tube; a first titration hole, a second titration hole and a third titration hole with different inner diameters are arranged on the movable plug along the axis of the movable plug;
the nut is fixed at the end part of the outer pipe; the first end of the screw rod extends into the outer pipe and is rotationally connected with the end face of the movable plug, and the second end of the screw rod extends out of the outer pipe after being in threaded connection with the nut.
Preferably, the movable plug is provided with a connecting rod towards one end of the screw rod, and the screw rod is connected with the connecting rod through a bearing.
Preferably, the screw rod orientation the one end of connecting rod is provided with the recess, the bearing inlays to be located in the recess, the outer lane of bearing with the recess inner wall is connected, and the outer lane cover is established on the connecting rod.
Preferably, one end of the screw rod extending out of the outer tube is provided with a rotating handle.
Preferably, a first sealing ring and a second sealing ring are respectively arranged at two ends of the movable plug;
the first titration hole, the second titration hole and the third titration hole are sequentially distributed from left to right, and the inner diameters of the first titration hole, the second titration hole and the third titration hole are gradually increased.
Preferably, the burette body is marked with scale marks.
Preferably, the first sealing ring and the second sealing ring are both made of fluororubber.
Preferably, the titration tube body and the titration head are coaxially arranged.
The utility model has the beneficial effects that:
by arranging a burette body, a titration flow control mechanism and a titration head; wherein the content of the first and second substances,
the upper end of the titration flow control mechanism is connected with the body of the titration tube, and the lower end of the titration flow control mechanism is connected with the titration head; the titration flow control mechanism comprises an outer tube, a movable plug, a screw rod and a nut; the outer pipe is transversely arranged, the upper end of the outer pipe is connected with the body of the burette, and the lower end of the outer pipe is connected with the titration head; the movable plug is arranged in the outer tube and can slide along the axis of the outer tube; a first titration hole, a second titration hole and a third titration hole with different inner diameters are arranged on the movable plug along the axis of the movable plug; the nut is fixed at the end part of the outer pipe; the first end of screw rod extends into in the outer tube and with the terminal surface of activity stopper rotates to be connected, the second end with extend out behind the nut threaded connection the outer tube has reached and has rotated the screw rod and make it drive the activity stopper along outer tube axial displacement, adjusts the position in first titration hole, second titration hole and third titration hole to realized being convenient for to buret flow control's technological effect, solved the flow that the acid buret among the correlation technique comes control solution through the glass piston of lower extreme then, adjusted comparatively inconvenient problem.
Drawings
In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a titration flow control mechanism according to an embodiment of the present invention;
in the attached drawings, 1 a burette tube body, 2 a titration flow control mechanism, 21 a nut, 22 a screw, 23 a first titration hole, 24 a second titration hole, 25 a third titration hole, 26 a movable plug, 27 a bearing, 28 a connecting rod, 3 a rotary handle, 4 a titration head, 5 a first sealing ring and 6 a second sealing ring.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.
As shown in fig. 1 to 2, the present embodiment provides an acid type burette including: a burette body 1, a titration flow control mechanism 2 and a titration head 4; wherein the content of the first and second substances,
the upper end of the titration flow control mechanism 2 is connected with the burette body 1, and the lower end is connected with the titration head 4;
the titration flow control mechanism 2 comprises an outer tube, a movable plug 26, a screw 22 and a nut 21; the outer tube is transversely arranged, the upper end of the outer tube is connected with the burette body 1, and the lower end of the outer tube is connected with the titration head 4;
the movable plug 26 is arranged in the outer tube and can slide along the axis of the outer tube; a first titration hole 23, a second titration hole 24 and a third titration hole 25 with different inner diameters are arranged on the movable plug 26 along the axis of the movable plug;
the nut 21 is fixed at the end of the outer tube; the first end of the screw 22 extends into the outer tube and is rotatably connected with the end face of the movable plug 26, and the second end of the screw is connected with the nut 21 in a threaded manner and then extends out of the outer tube.
In this embodiment, the burette body 1 is made of glass and is vertically arranged, and the upper end of the burette body 1 is open and is used for containing a solution to be titrated. Titration flow control mechanism 2 is located between titration head 4 and burette body 1, and the solution that is located burette body 1 enters titration head 4 again after titration flow control mechanism 2, is titrated by titration head 4 discharge. The titration flow control mechanism 2 mainly controls the titration flow in the burette, namely controls the titration flow. The titration flow control mechanism 2 in this embodiment mainly comprises an outer tube, a movable plug 26, a screw 22 and a nut 21, the outer tube can be made of glass, the outer tube is transversely arranged, and the upper end and the lower end of the outer tube are respectively communicated with the body 1 of the titration tube and the titration head 4. The adjustment of the flow rate in the mechanism is mainly realized by the cooperation of the movable plug 26, the screw 22 and the nut 21.
Specifically, a first end of the screw 22 is rotatably connected with an end of the movable plug 26, and a second end is in threaded connection with the nut 21 and extends out of the outer tube, so that the rotatable screw 22 extends out of one end of the outer tube, and since the screw 22 is in threaded connection with the nut 21 and the nut 21 is fixed on the outer tube, the screw 22 can move along the axial direction of the outer tube or the nut 21 in the rotating process, including moving towards the inner side and the outer side of the outer tube. Since the first end of the screw 22 is rotatably connected to the movable plug 26, the movable plug 26 does not interfere with the rotation of the screw 22, and the screw 22 can move linearly and synchronously with the movable plug 26, so as to change the first titration hole 23, the second titration hole 24 and the third titration hole 25 on the movable plug 26.
Because the inner diameters of the first titration hole 23, the second titration hole 24 and the third titration hole 25 are different, when different titration holes are communicated with the burette body 1 and the titration head 4, the flow velocity and the flow rate of the solution are different, and therefore the titration flow rate is adjusted.
This embodiment has reached and has rotated screw rod 22 and made it to drive movable stopper 26 along outer tube axial displacement, the position of adjustment first titration hole 23, second titration hole 24 and third titration hole 25 to realized being convenient for to buret flow control's technological effect, solved the acid buret among the relevant art then and controlled the flow of solution through the glass piston of lower extreme, adjusted comparatively inconvenient problem.
Preferably, a connecting rod 28 is arranged at one end of the movable plug 26 facing the screw rod 22, the screw rod 22 is connected with the connecting rod 28 through a bearing 27, a groove is arranged at one end of the screw rod 22 facing the connecting rod 28, the bearing 27 is embedded in the groove, an outer ring of the bearing 27 is connected with the inner wall of the groove, and the outer ring is sleeved on the connecting rod 28.
Thereby achieving a rotational connection between the screw 22 and the movable plug 26, as well as a synchronous linear displacement.
Preferably, the end of the screw 22 extending out of the outer tube is provided with a turning knob 3, and the turning screw 22 is programmed by turning the knob 3, thereby facilitating the regulation of the flow rate.
Preferably, the two ends of the movable plug 26 are respectively provided with a first sealing ring 5 and a second sealing ring 6;
the first titration hole 23, the second titration hole 24 and the third titration hole 25 are distributed from left to right in sequence, and the inner diameters of the first titration hole, the second titration hole and the third titration hole are gradually increased.
The two ends of the movable plug 26 are sealed by the first sealing ring 5 and the second sealing ring 6, so that the solution is prevented from flowing out.
Preferably, the burette body 1 is marked with graduation marks. Preferably, the first seal ring 5 and the second seal ring 6 are made of fluororubber. Preferably, the burette body and the titration head 4 are arranged coaxially.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (8)
1. An acid burette, comprising: a burette body, a titration flow control mechanism and a titration head; wherein the content of the first and second substances,
the upper end of the titration flow control mechanism is connected with the body of the titration tube, and the lower end of the titration flow control mechanism is connected with the titration head;
the titration flow control mechanism comprises an outer tube, a movable plug, a screw rod and a nut; the outer pipe is transversely arranged, the upper end of the outer pipe is connected with the body of the burette, and the lower end of the outer pipe is connected with the titration head;
the movable plug is arranged in the outer tube and can slide along the axis of the outer tube; a first titration hole, a second titration hole and a third titration hole with different inner diameters are arranged on the movable plug along the axis of the movable plug;
the nut is fixed at the end part of the outer pipe; the first end of the screw rod extends into the outer pipe and is rotationally connected with the end face of the movable plug, and the second end of the screw rod extends out of the outer pipe after being in threaded connection with the nut.
2. An acid burette according to claim 1, wherein the end of the moveable plug facing the screw is provided with a connecting rod, the screw being connected to the connecting rod by a bearing.
3. The acid burette of claim 2, wherein a groove is formed at one end of the screw rod facing the connecting rod, the bearing is embedded in the groove, an outer ring of the bearing is connected with the inner wall of the groove, and the outer ring is sleeved on the connecting rod.
4. An acid burette as claimed in claim 3, wherein the end of the screw extending out of the outer tube is provided with a rotating handle.
5. An acid burette according to claim 4, wherein both ends of the movable plug are provided with a first sealing ring and a second sealing ring, respectively;
the first titration hole, the second titration hole and the third titration hole are sequentially distributed from left to right, and the inner diameters of the first titration hole, the second titration hole and the third titration hole are gradually increased.
6. An acid burette according to claim 5, wherein the burette body is marked with graduations.
7. An acid burette as claimed in claim 6, wherein said first seal ring and said second seal ring are both made of viton.
8. An acid burette according to claim 7, wherein said burette body and said titration head are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121875625.4U CN215910421U (en) | 2021-08-11 | 2021-08-11 | Acid burette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121875625.4U CN215910421U (en) | 2021-08-11 | 2021-08-11 | Acid burette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215910421U true CN215910421U (en) | 2022-02-25 |
Family
ID=80291173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121875625.4U Active CN215910421U (en) | 2021-08-11 | 2021-08-11 | Acid burette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215910421U (en) |
-
2021
- 2021-08-11 CN CN202121875625.4U patent/CN215910421U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0797080A3 (en) | Flow control valve with flowmeter | |
| CN103148035B (en) | A kind of directly-fed Digital Hydraulic Valve position control system | |
| CN215910421U (en) | Acid burette | |
| GB2000574A (en) | Eccentric rotary valve | |
| CN107288947A (en) | A kind of manual proportional reversing valve | |
| DE69001298T2 (en) | CLOSER FOR CONTROLLING A RIVER. | |
| CN212616675U (en) | V-shaped adjusting ball valve capable of controlling flow | |
| CN209483960U (en) | A kind of needle valve quantitatively adjusted | |
| CN214274549U (en) | Ball valve sealing element | |
| CN207036792U (en) | A kind of quantitative liquid getting buret | |
| CN104455684B (en) | A kind of temperature automatic control mixing valve for water heater | |
| CN208568698U (en) | A kind of adjustable vapour lock device of gas chromatograph | |
| CN208703135U (en) | A kind of V-groove micro-flow regulating valve | |
| CN108267196A (en) | Rotary body nozzle-type commutator | |
| CN203572541U (en) | Precise fluid volume regulator | |
| CN206572018U (en) | A kind of gas ratio mixing valve of high reliability | |
| CN210178971U (en) | Ball valve convenient for adjusting fluid speed | |
| CN107131347B (en) | A kind of high-precision valve gate driver | |
| CN207093779U (en) | A kind of push type Universal angle valve | |
| CN219734239U (en) | Butt-clamping type soft sealing butterfly valve | |
| CN211371444U (en) | Rotary-cut formula valve with online extended functionality | |
| CN217394701U (en) | Clamp with auxiliary mark for adjusting screw | |
| CN107606280A (en) | A kind of compact linear formula valve element opening degree control device | |
| CN215674155U (en) | Install stable water injection flow automatic control appearance for pipeline | |
| CN209325085U (en) | A kind of two pass ball valves facilitating control flow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |