Preparation device for lead-containing standard solution
By designing a preparation device with a lifting and lowering stirring shaft and a stirring plate, the problem of uneven stirring when preparing lead-containing standard solution in the prior art is solved, and efficient mixing and uniformity of the solution is achieved, ensuring the preparation quality.
Patent Information
- Application Number
- CN202420598751.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-27
AI Technical Summary
In the prior art, when preparing a standard lead-containing solution, the stirring mechanism is relatively single, and the solutions at different positions cannot be effectively stirred and lifted, resulting in difficulty in fully mixing the bottom solution and the middle and upper solution, and lead nitrate is prone to precipitation, affecting the mixing quality and uniformity.
A preparation device for lead-containing standard solution is designed. The cam is driven to rotate, and the connecting block is squeezed through the cam, which drives the sleeve rod and the stirring shaft to rise. The first spring is used to make the stirring shaft and the stirring rod simultaneously lift and lower during the rotation process, so as to achieve effective stirring of the solution at different positions, and the bottom solution is lifted through the stirring plate to promote uniform mixing of the solution.
Through the design of this device, the mixing effect can be significantly improved, the precipitation of lead nitrate can be prevented, and the uniformity of the solution and the preparation quality can be ensured.
Smart Images
Figure CN222567528U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of preparation of lead-containing standard solutions, in particular to a preparation device for lead-containing standard solutions. Background Art
[0002] Lead-containing standard solution refers to a standard solution containing lead element, which is usually used in laboratory analysis, environmental monitoring, industrial production and other fields. The concentration of lead-containing standard solution is known, which can be used to calibrate instruments, test analytical methods, determine the content of lead element in samples, etc. When preparing lead-containing standard solution, a preparation device is usually used. The preparation device is a device used to prepare solutions. It can be various experimental equipment, such as volumetric flasks, syringes, magnetic stirrers, etc., which are used to dissolve solutes in solvents according to a certain proportion and concentration. The preparation of lead-containing standard solution usually needs to be operated according to the given formula and concentration requirements. A common preparation method is to weigh a certain amount of lead-containing compound (such as lead nitrate) into a container, then add an appropriate amount of solvent (such as deionized water) to stir and dissolve, and dilute to reach the target concentration.
[0003] When preparing a lead-containing standard solution, it is generally necessary to add a solvent to lead nitrate, and by stirring the lead nitrate and the solvent, the lead nitrate is dissolved, thereby obtaining a lead-containing standard solution. In the prior art, when stirring the lead nitrate and the solvent, the stirring mechanism is often set up in a relatively simple manner, and can only stir and mix the lead nitrate and the solvent in a single manner, and cannot stir and lift the solutions at different positions well, so that the solution at the bottom cannot be well mixed with the solution in the middle and upper parts, and the lead nitrate is easy to precipitate at the bottom, which is not conducive to improving the mixing quality and the uniformity of the solution preparation. Therefore, in order to solve the above problems, a preparation device for a lead-containing standard solution is proposed. Utility Model Content
[0004] The utility model aims to provide a preparation device for a lead-containing standard solution, so as to solve the problem mentioned in the above background technology that only lead nitrate and a solvent can be stirred and mixed, solutions at different positions cannot be stirred and lifted well, and the solution at the bottom cannot be mixed well with the solution in the middle and upper parts, and lead nitrate is easy to precipitate at the bottom, which is not conducive to improving the mixing quality and the uniformity of solution preparation.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a preparation device for a lead-containing standard solution, comprising a tank body, the tank body comprising a preparation tank, the top of the preparation tank is fixedly connected with a feed port, the top of the preparation tank is fixedly connected with a liquid inlet, the bottom of the preparation tank is provided with a liquid outlet, the inner side of the preparation tank is movably connected with a rotating rod, the top of the preparation tank is fixedly installed with a first motor, the rotating rod is fixedly connected to the output end of the first motor, the bottom end of the rotating rod is provided with a stirring shaft, and the surface of the stirring shaft is fixedly connected with a stirring rod;
[0006] A dissolving mechanism is provided on the inner side of the preparation tank, and the dissolving mechanism includes a rotating rod, which is movably connected to the inner side of the preparation tank, a cam is fixedly connected to the surface of the rotating rod, a second motor is fixedly installed on the surface of the preparation tank, a sleeve rod is movably connected to the surface of the rotating rod, a connecting block is fixedly connected to the upper surface of the sleeve rod, and a stirring plate is fixedly connected to the bottom end of the stirring shaft.
[0007] Preferably, the dissolving mechanism further comprises a limit block, the limit block is fixedly connected to the surface of the rotating rod, a limit groove is provided on the inner wall of the sleeve rod, and a first spring is fixedly connected to the bottom end of the rotating rod.
[0008] Preferably, one end of the rotating rod away from the cam is fixedly connected to the output end of the second motor, the connecting block is movably connected to the rotating rod, and the stirring shaft is fixedly connected to the bottom end of the sleeve rod.
[0009] Preferably, one end of the limit block is fixedly connected to the rotating rod, the other end of the limit block is movably connected to the limit groove, one end of the first spring is fixedly connected to the rotating rod, and the other end of the first spring is fixedly connected to the sleeve rod.
[0010] Preferably, an adjustment mechanism is provided on the inner side of the preparation tank, and the adjustment mechanism includes a movable rod, which is movably connected to the inner side of the preparation tank, a baffle is fixedly connected to the surface of the movable rod, and a pull plate is fixedly connected to the end of the movable rod away from the baffle, a limiting rod is fixedly connected to the surface of the preparation tank, and a second spring is fixedly connected to the surface of the pull plate.
[0011] Preferably, the pull plate is movably connected to the limiting rod, one end of the second spring is fixedly connected to the preparation tank, and the other end of the second spring is fixedly connected to the pull plate.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. By driving the cam to rotate by the rotating rod, the cam can squeeze the connecting block, and then the connecting block drives the sleeve rod to rise, and the stirring shaft drives the stirring rod to rise, and combined with the elastic property of the first spring, when the cam cancels the squeezing of the connecting block during the rotation, the sleeve rod can drive the stirring shaft and the stirring rod to descend, and then through the cooperation of the cam and the first spring, the stirring shaft and the stirring rod can be lifted and lowered at the same time during the rotation, so that the stirring rod can stir the lead nitrate and the solvent at different positions, which is beneficial to improve the mixing effect and facilitate the better dissolution of lead nitrate. At the same time, the stirring plate rises and falls under the action of the stirring shaft, which can lift the solution at the bottom of the preparation tank, so that the bottom solution can be better integrated with the middle and upper solutions, which is beneficial to improve the mixing quality and the uniformity of solution preparation.
[0014] 2. By moving the movable rod on the inner side of the preparation tank, the baffle can be moved at the bottom of the feed port. During the movement of the baffle, the bottom of the feed port can be blocked or unblocked. At the same time, the opening size at the bottom of the feed port will also change with the movement of the baffle. When lead nitrate is added, the falling speed of lead nitrate and the amount of lead nitrate entering the preparation tank can be controlled by adjusting the opening size at the bottom of the feed port, thereby avoiding excessive addition of lead nitrate at one time, which is beneficial to ensuring the preparation quality of the lead-containing standard solution. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic cross-sectional front view of the structure of the utility model;
[0016] Figure 2 It is a schematic side cross-sectional view of the structure of the cam and the connecting block of the utility model;
[0017] Figure 3 It is a schematic front view and cross-sectional view of the structure of the sleeve rod and the connecting block of the utility model;
[0018] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.
[0019] In the figure: 1. preparation tank; 11. feed port; 12. liquid inlet; 13. liquid outlet; 14. rotating rod; 15. first motor; 16. stirring shaft; 17. stirring rod; 2. rotating rod; 21. cam; 22. second motor; 23. sleeve rod; 24. limit block; 25. limit groove; 26. first spring; 27. connecting block; 28. stirring plate; 3. movable rod; 31. baffle; 32. pull plate; 33. limit rod; 34. second spring. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-4 , an embodiment provided by the utility model:
[0022] The first motor 15 and the second motor 22 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.
[0023] A preparation device for a lead-containing standard solution comprises a tank body, wherein the tank body comprises a preparation tank 1, wherein a feed port 11 is fixedly connected to the top of the preparation tank 1, a liquid inlet 12 is fixedly connected to the top of the preparation tank 1, a liquid outlet 13 is arranged at the bottom of the preparation tank 1, a rotating rod 14 is movably connected to the inner side of the preparation tank 1, a first motor 15 is fixedly installed at the top of the preparation tank 1, the rotating rod 14 is fixedly connected to the output end of the first motor 15, a stirring shaft 16 is arranged at the bottom of the rotating rod 14, a stirring rod 17 is fixedly connected to the surface of the stirring shaft 16, lead nitrate can be added to the inner side of the preparation tank 1 by setting the feed port 11, a solvent can be added to the inner side of the preparation tank 1 by setting the liquid inlet 12, and the first motor 15 drives the rotating rod 14 to rotate, so that the stirring shaft 16 drives the stirring rod 17 to rotate, and then the stirring rod 17 stirs the lead nitrate and the solvent, thereby dissolving the lead nitrate, and thus the purpose of preparing the lead-containing standard solution is achieved;
[0024] A dissolving mechanism is provided on the inner side of the preparation tank 1, and the dissolving mechanism includes a rotating rod 2, which is movably connected to the inner side of the preparation tank 1, a cam 21 is fixedly connected to the surface of the rotating rod 2, a second motor 22 is fixedly installed on the surface of the preparation tank 1, a sleeve rod 23 is movably connected to the surface of the rotating rod 14, a connecting block 27 is fixedly connected to the upper surface of the sleeve rod 23, and a stirring plate 28 is fixedly connected to the bottom end of the stirring shaft 16. Through the setting of the stirring plate 28, the solution at the bottom of the preparation tank 1 can be disturbed and lifted, so that the solution at the bottom of the preparation tank 1 can be better mixed with the middle and upper solution, thereby improving the quality of mixing, facilitating better dissolution of lead nitrate, and ensuring the uniformity of the solution.
[0025] Furthermore, the dissolving mechanism also includes a limit block 24, which is fixedly connected to the surface of the rotating rod 14, and a limit groove 25 is provided on the inner wall of the sleeve rod 23. The bottom end of the rotating rod 14 is fixedly connected with a first spring 26. Through the setting of the limit block 24 and the limit groove 25, the movement of the sleeve rod 23 on the surface of the rotating rod 14 can be limited, and the displacement of the sleeve rod 23 can be avoided, thereby ensuring that the sleeve rod 23 can drive the stirring shaft 16 and the stirring rod 17 to move stably.
[0026] Furthermore, one end of the rotating rod 2 away from the cam 21 is fixedly connected to the output end of the second motor 22, the connecting block 27 is movably connected to the rotating rod 14, and the stirring shaft 16 is fixedly connected to the bottom end of the sleeve rod 23. Through the setting of the cam 21, the connecting block 27 can be squeezed during the rotation, so that the connecting block 27 can drive the sleeve rod 23 and the stirring shaft 16 to rise, and then the stirring rod 17 can stir the solutions at different positions, and the stirring plate 28 can also rise under the action of the stirring shaft 16, so as to lift the solution at the bottom of the preparation tank 1, which can improve the mixing effect and uniformity of lead nitrate and solvent, and facilitate better preparation of lead-containing standard solution.
[0027] Furthermore, one end of the limit block 24 is fixedly connected to the rotating rod 14, the other end of the limit block 24 is movably connected to the limit groove 25, one end of the first spring 26 is fixedly connected to the rotating rod 14, and the other end of the first spring 26 is fixedly connected to the sleeve rod 23. Through the setting of the first spring 26, the sleeve rod 23 can be reset, so that when the sleeve rod 23 cancels the squeezing of the connecting block 27, the sleeve rod 23 can drive the stirring shaft 16 and the stirring rod 17 to reset under the rebound action of the first spring 26, thereby realizing the descent of the stirring shaft 16 and the stirring rod 17, and combined with the action of the cam 21, the stirring shaft 16 and the stirring rod 17 can be lifted and lowered at the same time during the rotation process, and then the stirring plate 28 can stir and lift the solution at the bottom of the preparation tank 1, thereby facilitating better mixing of lead nitrate and the solvent.
[0028] Furthermore, an adjusting mechanism is provided on the inner side of the preparation tank 1, and the adjusting mechanism includes a movable rod 3, which is movably connected to the inner side of the preparation tank 1, a baffle 31 is fixedly connected to the surface of the movable rod 3, and a pull plate 32 is fixedly connected to the end of the movable rod 3 away from the baffle 31, a limiting rod 33 is fixedly connected to the surface of the preparation tank 1, and a second spring 34 is fixedly connected to the surface of the pull plate 32. Through the movement of the movable rod 3 in the preparation tank 1, the baffle 31 can move accordingly, and the bottom end of the feed port 11 can be blocked or unblocked. At the same time, the baffle 31 can adjust the opening size of the bottom end of the feed port 11, so that during preparation, the feed amount and falling speed of lead nitrate can be controlled, thereby avoiding adding too much lead nitrate to the preparation tank 1 at one time.
[0029] Furthermore, the pull plate 32 and the limit rod 33 are movably connected, one end of the second spring 34 is fixedly connected to the preparation tank 1, and the other end of the second spring 34 is fixedly connected to the pull plate 32. Through the setting of the second spring 34, the pull plate 32 can be reset, and then the movable rod 3 can drive the baffle 31 to reset, so that the baffle 31 can block the bottom end of the feed port 11, thereby preventing lead nitrate from falling.
[0030] Working principle: When in use, the first motor 15 is electrically connected to an external power source, and the staff starts the first motor 15 by pressing the switch. The operation of the first motor 15 drives the rotating rod 14 to rotate, and the sleeve rod 23 will rotate under the action of the rotating rod 14 and drive the stirring shaft 16 and the stirring rod 17 to rotate accordingly, so that the stirring rod 17 stirs the lead nitrate and the solvent. The second motor 22 is electrically connected to an external power source, and the staff starts the second motor 22 by pressing the switch. The operation of the second motor 22 drives the rotating rod 2 to rotate, and the cam 21 will rotate accordingly under the action of the rotating rod 2. When the cam 21 rotates with its convex surface facing the bottom of the connecting block 27, it will squeeze the connecting block 27, so that the connecting block 27 can move and rise on the surface of the rotating rod 14, and the sleeve rod 23 will drive the connecting block 27 to move and rise. The stirring shaft 16 and the stirring rod 17 rise accordingly, so that the limit block 24 slides on the surface of the limit groove 25. At this time, the first spring 26 is in a contracted state. When the cam 21 makes its concave surface face the bottom of the connecting block 27 during the rotation, the sleeve rod 23 will be reset under the rebound action of the first spring 26, so that the stirring shaft 16 drives the stirring rod 17 to descend. Then, through the cooperation of the cam 21 and the first spring 26, the stirring shaft 16 and the stirring rod 17 can be lifted and lowered at the same time during the rotation, so that the stirring rod 17 can stir the solutions at different positions. At the same time, the stirring plate 28 can be lifted and lowered under the action of the stirring shaft 16, so as to disturb and lift the solution at the bottom of the preparation tank 1, so as to promote the fusion of the bottom solution and the middle and upper solution, and realize the uniform mixing of lead nitrate and the solvent.
[0031] By pulling the pull plate 32, the pull plate 32 can be moved on the surface of the limit rod 33, and then the movable rod 3 can move on the inner side of the preparation tank 1 under the action of the pull plate 32. At this time, the second spring 34 is in a stretched state, and the baffle 31 moves accordingly under the action of the movable rod 3, so that the blockage of the bottom of the feed port 11 can be cancelled, and then the lead nitrate can enter the preparation tank 1 through the bottom of the feed port 11. By loosening the pull plate 32, the pull plate 32 will be reset under the rebound action of the second spring 34, and then the movable rod 3 drives the baffle 31 to reset and block the bottom end of the feed port 11. At the same time, through the movement of the baffle 31, the opening size of the bottom end of the feed port 11 can be adjusted, so that the falling speed and the amount of lead nitrate added can be controlled.
[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.
Claims
1. A preparation device for a lead-containing standard solution, comprising a tank body, the tank body comprising a preparation tank (1), the top of the preparation tank (1) being fixedly connected with a feed port (11), the top of the preparation tank (1) being fixedly connected with a liquid inlet (12), the bottom of the preparation tank (1) being provided with a liquid outlet (13), the inner side of the preparation tank (1) being movably connected with a rotating rod (14), the top of the preparation tank (1) being fixedly mounted with a first motor (15), the rotating rod (14) being fixedly connected to an output end of the first motor (15), the bottom of the rotating rod (14) being provided with a stirring shaft (16), the surface of the stirring shaft (16) being fixedly connected with a stirring rod (17); It is characterized in that A dissolving mechanism is arranged on the inner side of the preparation tank (1), and the dissolving mechanism comprises a rotating rod (2), the rotating rod (2) is movably connected to the inner side of the preparation tank (1), a cam (21) is fixedly connected to the surface of the rotating rod (2), a second motor (22) is fixedly mounted on the surface of the preparation tank (1), a sleeve rod (23) is movably connected to the surface of the rotating rod (14), a connecting block (27) is fixedly connected to the upper surface of the sleeve rod (23), and a stirring plate (28) is fixedly connected to the bottom end of the stirring shaft (16).
2. A preparation device for a lead-containing standard solution according to claim 1, characterized in that: The dissolving mechanism further comprises a limit block (24), wherein the limit block (24) is fixedly connected to the surface of the rotating rod (14), a limit groove (25) is provided on the inner wall of the sleeve rod (23), and a first spring (26) is fixedly connected to the bottom end of the rotating rod (14).
3. A preparation device for a lead-containing standard solution according to claim 1, characterized in that: One end of the rotating rod (2) away from the cam (21) is fixedly connected to the output end of the second motor (22), the connecting block (27) is movably connected to the rotating rod (14), and the stirring shaft (16) is fixedly connected to the bottom end of the sleeve rod (23).
4. A preparation device for a lead-containing standard solution according to claim 2, characterized in that: One end of the limit block (24) is fixedly connected to the rotating rod (14), and the other end of the limit block (24) is movably connected to the limit groove (25). One end of the first spring (26) is fixedly connected to the rotating rod (14), and the other end of the first spring (26) is fixedly connected to the sleeve rod (23).
5. The preparation device for a lead-containing standard solution according to claim 1, characterized in that: An adjustment mechanism is provided on the inner side of the preparation tank (1), the adjustment mechanism comprising a movable rod (3), the movable rod (3) being movably connected to the inner side of the preparation tank (1), a baffle (31) being fixedly connected to the surface of the movable rod (3), a pull plate (32) being fixedly connected to one end of the movable rod (3) away from the baffle (31), a limit rod (33) being fixedly connected to the surface of the preparation tank (1), and a second spring (34) being fixedly connected to the surface of the pull plate (32).
6. A preparation device for a lead-containing standard solution according to claim 5, characterized in that: The pull plate (32) and the limit rod (33) are movably connected, one end of the second spring (34) is fixedly connected to the preparation tank (1), and the other end of the second spring (34) is fixedly connected to the pull plate (32).