Burette capable of preventing liquid leakage
By designing mobile and movable components in the buret, the liquid leakage problem caused by long-term use of traditional burets is solved, which improves the convenience of use and the sustainability of equipment, and reduces maintenance costs, achieving material saving and use Security.
Patent Information
- Application Number
- CN202420754430.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-11
AI Technical Summary
Traditional burets are prone to fluid leakage during long-term use, which makes it difficult for staff to use and increases maintenance costs due to wear of the rotary plunger.
A buret tube including a titration valve and internal moving components is designed. Through control rods, movable springs, arc-shaped slide lever, gears and belt transmission structures, the buret tube is protected from leakage, and the flow is controlled through the movable components. , reduce material waste.
It effectively prevents liquid leakage caused by long-term use of the buret tube, improves the convenience of use and the continuous use of the equipment, reduces the maintenance costs caused by wear, and increases material saving and safety in use.
Smart Images
Figure CN222166957U_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of burettes, in particular to a burette capable of preventing liquid leakage. Background Art
[0002] The burette is the main measuring instrument used in titration analysis, and can be divided into two types: one is the acid burette, and the other is the alkaline burette. The acid burette has a glass piston at the bottom, which can be loaded with acidic or oxidizing titrants, but not alkaline titrants, because alkaline titrants can cause the piston to stick to the piston sleeve, making it difficult to rotate. The alkaline burette is used to hold alkaline solutions, and its lower end is connected to a rubber tube, in which glass beads are placed to control the outflow of the solution, and the lower end of the rubber tube is connected to a pointed glass tube. Any solution that can react with the rubber tube, such as potassium permanganate, iodine and other solutions, cannot be loaded into the alkaline burette.
[0003] The main part of the burette is made of a glass tube with uniform inner diameter and precise scale. The lower end is connected to a glass stopper or a latex tube containing glass beads to control the outflow rate of the liquid, and the bottom end is connected to a pointed glass tube. The burette with a glass stopper at the lower end is called an acid burette, which is often used to measure the volume of non-strong alkaline dilute solutions dripped out. It is not suitable for alkaline solutions, because long-term alkaline solutions can corrode the glass and cause the stopper to be unable to rotate.
[0004] The traditional burette body is made of glass, and the liquid flow is controlled by the rotation of the rotating plunger below. In order to reduce leakage and prevent excessive rotation speed, the user will exert a large squeezing force on the rotating plunger. After a long time, the rotating plunger will wear out, which will not only cause leakage, but also make it extremely difficult to pull out because the rotating plunger is frustum-shaped and squeezed too tightly. The rotation will accelerate the wear of the rotating plunger, making it more likely to cause leakage, which greatly increases the difficulty for staff during use. Summary of the invention
[0005] The object of the present invention is to provide a leak-proof burette to solve the problems mentioned in the above background technology.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a leakage-proof burette, comprising a burette, a burette valve is fixedly installed on the surface of the burette, a movable component is arranged inside the burette, and a moving component is arranged inside the burette valve, and the moving component can be used to protect the burette to prevent leakage caused by long-term use, which greatly improves the convenience of staff when using it, and the moving component comprises: a control rod, the control rod is slidably connected to the inside of the burette valve, the control rod passes through the right side of the burette valve, a control disk is fixedly installed on the right side of the control rod, a movable spring 1 is fixedly installed on the surface of the control rod, the movable spring 1 is fixedly installed on the right side of the burette valve, a plug rod is fixedly installed on the left side of the control rod, an arc-shaped slide groove rod 1 is arranged on the surface of the plug rod, the arc-shaped slide groove rod 1 is rotatably connected to the inside of the burette valve, and the plug rod is slidably connected to the inside of the burette valve. The gear is connected to the interior of the arc-shaped slide groove rod 1, a rack is fixedly installed at the bottom of the insertion rod, a bevel gear 1 is fixedly installed on the left side of the arc-shaped slide groove rod 1, a bevel gear 2 is meshed on the surface of the bevel gear 1, and the bevel gear 2 is rotatably connected to the interior of the burette valve, a limiting rod is fixedly installed at the bottom of the bevel gear 2, a gear is rotatably connected to the interior of the burette valve, the bottom of the gear is meshed with the top of the rack, the surface of the gear is connected to a rotating shaft through a belt drive, a long rod is fixedly installed on the surface of the rotating shaft, and a limiting block is fixedly installed on the outside of the long rod, which increases the practicality and sustainability of the burette, and also reduces the economic cost of maintenance and replacement of the burette valve due to wear and tear caused by long-term use. The fixing part, the moving assembly also includes a fixing part, which can be used to increase the stability of the moving assembly to prevent leakage caused by improper protection of the burette due to accidental touch by outsiders.
[0007] Preferably, the fixing part comprises: a fixing rod, the fixing rod is fixedly installed on the inner side of the control panel, a connecting rod is fixedly installed on the inner side of the fixing rod, a sliding block is slidably connected to the surface of the connecting rod, and a semicircular block is fixedly installed on the inner side of the connecting rod, thereby increasing the protectiveness of the burette, improving the protection of the burette and reducing the safety hazards of users when using it.
[0008] Preferably, a cross block is fixedly installed on the outside of the drop valve, a conical rod is slidably connected inside the cross block, a fixed spring is interactively connected on the surface of the conical rod, and the fixed spring is fixedly installed inside the cross block.
[0009] Preferably, the movable component comprises: a rotating rod, the rotating rod is rotatably connected to the inside of the burette, an arc-shaped slide groove rod 2 is fixedly installed at the bottom of the rotating rod, a short rod is slidably connected to the surface of the arc-shaped slide groove rod 2, a piston rod is fixedly installed on the surface of the short rod, a piston disk is fixedly installed at the bottom of the piston rod, and the piston disk is slidably connected to the inside of the burette. The movable component can be used to prevent the burette from being over-pressed during use, which may cause excessive outflow of material and affect the quality of use.
[0010] Preferably, a clamping ring is fixedly mounted on the surface of the burette, and a telescopic rod is fixedly mounted on the outer side of the clamping ring.
[0011] Preferably, the rotating rod passes through the top of the burette, a toothed disc 1 is fixedly mounted on the surface of the rotating rod, a toothed disc 2 is meshed on the top of the toothed disc 1, the toothed disc 2 is slidably connected to the surface of the rotating rod, a fixed shaft is fixedly mounted on the toothed disc 2, a movable spring 2 is fixedly mounted on the top of the fixed shaft, a control block is fixedly mounted on the top of the movable spring 2, and a limiting shaft is fixedly mounted on the bottom of the toothed disc 2. This movable assembly can be used to control the flow rate of the burette, improve the quality and effect during use, and increase the efforts to save materials.
[0012] Preferably, two groups of fixing members are provided, and the two groups of fixing members are symmetrically arranged with the center line of the titration valve as the symmetry axis.
[0013] Preferably, a curved sliding groove is provided on one surface of the curved sliding groove rod.
[0014] Preferably, a groove is provided on the surface of the limiting block.
[0015] Preferably, the cross section of the limiting rod is L-shaped.
[0016] Compared with the prior art, the present invention provides a leak-proof burette, which has the following beneficial effects:
[0017] 1. The leak-proof burette can use a mobile component to protect the burette to prevent leakage caused by long-term use, which greatly improves the convenience of the staff when using it, increases the practicality and sustainability of the burette, and also reduces the economic cost of repairing and replacing the burette valve due to long-term wear and tear.
[0018] 2. The leak-proof burette can use the fixing parts to increase the stability of the moving components, prevent the burette from leaking due to improper protection caused by accidental touch by outsiders, increase the protection of the burette, improve the protection of the burette and reduce the safety hazards of users when using it.
[0019] 3. The leak-proof burette can utilize a movable component to prevent excessive pressing of the burette during use, thereby preventing excessive material outflow and affecting the quality of use. The movable component can be used to control the flow rate of the burette, thereby increasing the quality and effect during use and increasing the efforts to save materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a front view structural schematic diagram of the present invention;
[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the titration valve of the present invention;
[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the burette of the present invention;
[0023] Figure 4 It is a schematic diagram of the side structure of the titration valve of the present invention;
[0024] Figure 5 For the present invention Figure 2 A is a schematic diagram of the enlarged structure;
[0025] Figure 6 This is a schematic diagram of the front view structure of the limiting block of the present invention.
[0026] In the figure: 1, burette; 2, burette valve; 3, movable assembly; 31, rotating rod; 32, arc-shaped slide rod 2; 33, short rod; 34, piston rod; 35, piston disc; 36, snap ring; 37, telescopic rod; 38, toothed disc 1; 39, toothed disc 2; 310, fixed shaft; 311, movable spring 2; 312, control block; 313, limiting shaft; 4, moving assembly; 41, control rod; 42, control disc ; 43. Movable spring 1; 44. Insert rod; 45. Arc slide rod 1; 46. Rack; 47. Bevel gear 1; 48. Bevel gear 2; 49. Limiting rod; 410. Gear; 411. Rotating shaft; 412. Long rod; 413. Limiting block; 5. Fixing piece; 51. Fixing rod; 52. Connecting rod; 53. Sliding block; 54. Semicircular block; 55. Cross block; 56. Conical rod; 57. Fixing spring. DETAILED DESCRIPTION
[0027] like Figure 1-6As shown, the present invention provides a technical solution: a burette that can prevent liquid leakage, including a burette 1, a burette valve 2 is fixedly installed on the surface of the burette 1, a movable component 3 is arranged inside the burette 1, and a moving component 4 is arranged inside the burette valve 2. The moving component 4 can be used to protect the burette 1 to prevent leakage caused by long-term use, which greatly improves the convenience of the staff when using it, and the moving component 4 includes: a control rod 41, which can drive the movement of the control rod 41 by pressing the control panel 42, and when the control rod 41 moves, it drives the movement of the plug rod 44, and when the plug rod 44 moves, it drives the rotation of the arc-shaped slide rod 45, and when the arc-shaped slide rod 45 rotates, it drives the movement of the bevel gear 47, and when the bevel gear 47 rotates, it drives the movement of the bevel gear 47. When the bevel gear 48 moves, it drives the movement of the bevel gear 48. When the bevel gear 48 moves, it drives the movement of the limiting rod 49. When the plug rod 44 moves, it also drives the movement of the rack 46. When the rack 46 moves, it drives the rotation of the gear 410. When the gear 410 rotates, it drives the movement of the rotating shaft 411, thereby driving the movement of the long rod 412. When the long rod 412 moves, it drives the movement of the limiting block 413, so that the limiting rod 49 is inserted into the inside of the limiting block 413 for limiting. The control rod 41 is slidably connected to the inside of the titration valve 2. The control rod 41 passes through the right side of the titration valve 2. The control disk 42 is fixedly installed on the right side of the control rod 41. When the control rod 41 moves, it also drives the movement of the fixed rod 51. When the fixed rod 51 moves When the connecting rod 52 moves, it drives the movement of its connecting rod 52. When the connecting rod 52 moves, it drives the movement of its sliding block 53 and the semicircular block 54. When the connecting rod 52 is inserted into the interior of the cross block 55, the semicircular block 54 contacts the conical rod 56. When the conical rod 56 is reset under the action of the fixed spring 57, it is inserted into the surface of the connecting rod 52 for limiting. A movable spring 43 is fixedly installed on the surface of the control rod 41. The movable spring 43 is fixedly installed on the right side of the titration valve 2. A plug rod 44 is fixedly installed on the left side of the control rod 41. An arc-shaped sliding groove rod 45 is arranged on the surface of the plug rod 44. The arc-shaped sliding groove rod 45 is rotatably connected to the interior of the titration valve 2. The plug rod 44 is slidably connected to the interior of the arc-shaped sliding groove rod 45. A rack 46 is fixedly installed at the bottom of the plug rod 44. A bevel gear 47 is fixedly installed on the left side of the shaped slide slot rod 45, and a bevel gear 48 is meshed on the surface of the bevel gear 47. The bevel gear 48 is rotatably connected to the inside of the burette valve 2. A limiting rod 49 is fixedly installed on the bottom of the bevel gear 48. A gear 410 is rotatably connected to the inside of the burette valve 2. The bottom of the gear 410 is meshed with the top of the rack 46. The surface of the gear 410 is connected to a rotating shaft 411 through a belt drive. A long rod 412 is fixedly installed on the surface of the rotating shaft 411, and a limiting block 413 is fixedly installed on the outside of the long rod 412, which increases the practicality and sustainability of the burette 1 and reduces the economic cost of repairing and replacing the burette valve 2 due to long-term wear and tear. The fixing part 5 and the moving component 4 also include the fixing part 5.The fixing part 5 can be used to increase the stability of the moving component 4 to prevent leakage caused by improper protection of the burette 1 due to accidental touch by outsiders. The fixing rod 51 is fixedly installed on the inner side of the control panel 42. A connecting rod 52 is fixedly installed on the inner side of the fixing rod 51. A sliding block 53 is slidably connected to the surface of the connecting rod 52. A semicircular block 54 is fixedly installed on the inner side of the connecting rod 52, which increases the protection of the burette 1, improves the protection of the burette 1 and reduces the safety hazards of users when using it. A cross block 55 is fixedly installed on the outer side of the burette valve 2. A conical rod 56 is slidably connected inside the cross block 55. A fixed spring 57 is interactively connected to the surface of the conical rod 56. The fixed spring 57 is fixedly installed on the cross block 55. Inside the block 55, the rotating rod 31, when rotating the rotating rod 31, will drive the movement of the arc-shaped slide groove rod 2 32, when the arc-shaped slide groove rod 2 32 moves, it will drive the movement of the short rod 33, when the short rod 33 moves, it will drive the movement of the piston rod 34, when the piston rod 34 moves, it will drive the movement of the piston disc 35, so that the movement of the telescopic rod 37 is driven by the movable clamping ring 36 to limit the amount of the burette 1, when the rotating rod 31 rotates, it will also drive the movement of the toothed disc 1 38, when the toothed disc 1 38 moves, it will drive the movement of the toothed disc 2 39, and when the telescopic rod 37 is adjusted, when the toothed disc 1 38 moves, it will conflict with its limiting shaft 313, thereby driving the toothed disc 2 39 on the surface of the rotating rod 31 The rotating rod 31 is rotatably connected to the inside of the burette 1, and an arc-shaped slide groove rod 32 is fixedly installed at the bottom of the rotating rod 31. A short rod 33 is slidably connected to the surface of the arc-shaped slide groove rod 32. A piston rod 34 is fixedly installed on the surface of the short rod 33. A piston disk 35 is fixedly installed at the bottom of the piston rod 34. The piston disk 35 is slidably connected to the inside of the burette 1. The movable component 3 can be used to prevent the burette 1 from being pressed too much during use, which may cause excessive outflow of materials and affect the quality of use. A clamping ring 36 is fixedly installed on the surface of the burette 1, and a telescopic rod 37 is fixedly installed on the outside of the clamping ring 36. The rotating rod 31 passes through the top of the burette 1, and a toothed disc 38 is fixedly installed on the surface of the rotating rod 31. The top of the toothed disc 38 is meshed There is a toothed disc 2 39, which is slidably connected to the surface of the rotating rod 31. The toothed disc 2 39 is fixedly installed with a fixed shaft 310, and a movable spring 2 311 is fixedly installed on the top of the fixed shaft 310. A control block 312 is fixedly installed on the top of the movable spring 2 311. A limiting shaft 313 is fixedly installed at the bottom of the toothed disc 2 39. The movable component 3 can be used to control the flow of the burette 1, which increases the quality and effect during use and increases the efforts to save materials. There are two groups of fixing parts 5, and the two groups of fixing parts 5 are symmetrically arranged with the center line of the burette valve 2 as the symmetry axis. The surface of the arc-shaped slide rod 1 45 is provided with an arc-shaped slide, and the surface of the limiting block 413 is provided with a groove. The cross section of the limiting rod 49 is L-shaped.
[0028] Working principle: When the titration valve 2 is prevented from leaking, the control plate 42 can be pressed to drive the movement of the control rod 41, and when the control rod 41 moves, the movement of the plug rod 44 is driven, and when the plug rod 44 moves, the arc-shaped slide slot rod 1 45 is driven to rotate, and when the arc-shaped slide slot rod 1 45 rotates, the movement of the bevel gear 1 47 is driven, and when the bevel gear 1 47 moves, the movement of the bevel gear 2 48 is driven, and when the bevel gear 2 48 moves, the movement of the limiting rod 49 is driven, and when the plug rod 44 moves, the movement of the rack 46 is also driven, and when the rack 46 moves, the rotation of the gear 410 is driven, and when the gear 410 rotates, the movement of the rotating shaft 411 is driven, thereby driving the long rod 412 When the control rod 41 moves, the movement of the limiting block 413 is driven, so that the limiting rod 49 is inserted into the limiting block 413 to limit the burette 1 to prevent leakage caused by long-term use, which greatly improves the convenience of the staff when using it, increases the practicality and sustainability of the burette 1, and also reduces the economic cost of repair and replacement of the burette valve 2 caused by long-term wear and tear. When the control rod 41 moves, it also drives the movement of the fixing rod 51, and when the fixing rod 51 moves, it drives the movement of the connecting rod 52, and when the connecting rod 52 moves, it drives the movement of the slider 53 and the semicircular block 54. When the connecting rod 52 is inserted into the cross block 55 The inner part of the semicircular block 54 abuts against the tapered rod 56. When the tapered rod 56 is reset under the action of the fixing spring 57, it is inserted into the surface of the connecting rod 52 for limiting, thereby increasing the stability of the moving assembly 4, preventing the leakage of the burette 1 caused by improper protection of the burette 1 due to accidental touch by outsiders, increasing the protection of the burette 1, improving the protection of the burette 1 and reducing the potential safety hazards of users when using it. When the rotating rod 31 is rotated, the movement of the arc-shaped slide groove rod 2 32 is driven, and when the arc-shaped slide groove rod 2 32 is moved, the movement of the short rod 33 is driven, and when the short rod 33 is moved, the movement of the piston rod 34 is driven, and when the piston rod 34 is moved, the movement of the piston disc 35 is driven, so that The movable clamp ring 36 is used to drive the movement of the telescopic rod 37 to limit the usage of the burette 1. When the rotating rod 31 rotates, it will also drive the movement of the toothed disc 1 38. When the toothed disc 1 38 moves, it will drive the movement of the toothed disc 2 39. When the telescopic rod 37 is adjusted, the toothed disc 1 38 will conflict with the limiting shaft 313, thereby driving the toothed disc 2 39 to slide on the surface of the rotating rod 31, so as to limit the usage of the burette 1 and prevent the burette 1 from being over-pressed during use, which will cause excessive outflow of materials and affect the quality of use. The movable component 3 can be used to control the flow rate of the burette 1, improve the quality and effect during use, and increase the efforts to save materials.
[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A leak-proof burette, comprising a burette (1), characterized in that: A burette valve (2) is fixedly mounted on the surface of the burette (1), a movable component (3) is arranged inside the burette (1), a moving component (4) is arranged inside the burette valve (2), and the moving component (4) comprises: A control rod (41), wherein the control rod (41) is slidably connected to the inside of the titration valve (2), the control rod (41) passes through the right side of the titration valve (2), a control disk (42) is fixedly installed on the right side of the control rod (41), a movable spring (43) is fixedly installed on the surface of the control rod (41), the movable spring (43) is fixedly installed on the right side of the titration valve (2), a plug rod (44) is fixedly installed on the left side of the control rod (41), an arc-shaped sliding groove rod (45) is arranged on the surface of the plug rod (44), the arc-shaped sliding groove rod (45) is rotatably connected to the inside of the titration valve (2), the plug rod (44) is slidably connected to the inside of the arc-shaped sliding groove rod (45), and the bottom of the plug rod (44) is fixed A rack (46) is fixedly installed on the left side of the arc-shaped sliding groove rod (45), a bevel gear (47) is fixedly installed on the left side of the arc-shaped sliding groove rod (45), a bevel gear (48) is meshed on the surface of the bevel gear (47), the bevel gear (48) is rotatably connected to the inside of the titration valve (2), a limiting rod (49) is fixedly installed on the bottom of the bevel gear (48), a gear (410) is rotatably connected to the inside of the titration valve (2), the bottom of the gear (410) is meshed with the top of the rack (46), the surface of the gear (410) is connected to a rotating shaft (411) through a belt drive, a long rod (412) is fixedly installed on the surface of the rotating shaft (411), and a limiting block (413) is fixedly installed on the outside of the long rod (412); A fixing member (5), wherein the moving assembly (4) further comprises a fixing member (5).
2. A leak-proof burette according to claim 1, characterized in that: The fixing member (5) comprises a fixing rod (51), the fixing rod (51) being fixedly mounted on the inner side of the control panel (42), a connecting rod (52) being fixedly mounted on the inner side of the fixing rod (51), a sliding block (53) being slidably connected to the surface of the connecting rod (52), and a semicircular block (54) being fixedly mounted on the inner side of the connecting rod (52).
3. A leak-proof burette according to claim 1, characterized in that: A cross block (55) is fixedly mounted on the outside of the drop valve (2), a conical rod (56) is slidably connected inside the cross block (55), a fixed spring (57) is interactively connected on the surface of the conical rod (56), and the fixed spring (57) is fixedly mounted inside the cross block (55).
4. A leak-proof burette according to claim 1, characterized in that: The movable assembly (3) comprises: a rotating rod (31), the rotating rod (31) being rotatably connected to the interior of the burette (1), a second arc-shaped sliding groove rod (32) being fixedly mounted on the bottom of the rotating rod (31), a short rod (33) being slidably connected to the surface of the second arc-shaped sliding groove rod (32), a piston rod (34) being fixedly mounted on the surface of the short rod (33), a piston disc (35) being fixedly mounted on the bottom of the piston rod (34), and the piston disc (35) being slidably connected to the interior of the burette (1).
5. A leak-proof burette according to claim 1, characterized in that: A clamping ring (36) is fixedly mounted on the surface of the burette (1), and a telescopic rod (37) is fixedly mounted on the outside of the clamping ring (36).
6. A leak-proof burette according to claim 4, characterized in that: The rotating rod (31) passes through the top of the burette (1); a toothed disc 1 (38) is fixedly mounted on the surface of the rotating rod (31); a toothed disc 2 (39) is meshed with the top of the toothed disc 1 (38); the toothed disc 2 (39) is slidably connected to the surface of the rotating rod (31); a fixed shaft (310) is fixedly mounted on the toothed disc 2 (39); a movable spring 2 (311) is fixedly mounted on the top of the fixed shaft (310); a control block (312) is fixedly mounted on the top of the movable spring 2 (311); and a limiting shaft (313) is fixedly mounted on the bottom of the toothed disc 2 (39).
7. A leak-proof burette according to claim 1, characterized in that: The fixing members (5) are provided in two groups, and the two groups of fixing members (5) are symmetrically arranged with the center line of the titration valve (2) as the symmetry axis.
8. A leak-proof burette according to claim 1, characterized in that: The surface of the arc-shaped slide groove rod (45) is provided with an arc-shaped slide groove.
9. A leak-proof burette according to claim 1, characterized in that: A groove is formed on the surface of the limiting block (413).
10. The leak-proof burette according to claim 1, characterized in that: The limiting rod (49) has an L-shaped cross section.