Leakage-proof chemical burette

Abstract

The utility model relates to the technical field of burettes, and discloses an anti-leakage chemical burette, which comprises a sleeve, the inner side wall of the sleeve is detachably connected with a burette for storage, the top of the burette is detachably connected with a valve for sealing, the top of the valve is fixedly provided with a connecting pipe, and the connecting pipe is fixedly connected with the sleeve. The top of the connecting pipe is sleeved with a rubber bag, and a fixing ring is clamped to the bottom of the rubber bag. According to the chemical burette capable of preventing liquid leakage, through cooperative arrangement of the burette and the valve, the device can be more convenient and practical, an operator firstly stretches the bottom of the burette into liquid to be sucked and then presses the rubber bag, so that the liquid is sucked into the burette, the valve is directly closed after the liquid is sucked, and the burette is convenient to use. The top of the burette is in a sealed state, so that the probability of liquid dropping in the moving process after the burette sucks liquid is effectively reduced, and the safety of operators in the operation process is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of burette, specifically to a chemical burette of preventing liquid leakage. BACKGROUND

[0002] From the historical development, the origin of burette can be traced back to the 18th century, when chemical analysis gradually rises, the demand for accurate measurement of reaction liquid volume gives birth to the prototype of burette, the early burette is simple, mainly simple glass tube, the scale is very rough, and the measurement precision is low, with the progress of glass manufacturing technology, the glass with uniform quality, thinner wall and better transparency can be produced, which makes the scale of burette more accurate, and the pipe diameter more regular, thereby improving the accuracy of volume measurement, and the corrosion resistance of glass can also meet the storage demand of most chemical reagents, but the existing burette is prone to liquid leakage during use, therefore, a new device is urgently needed to solve this problem.

[0003] The prior art has the following problems in actual use:

[0004] The prior art does not set a valve at the top of the burette to close the parts, which may be prone to liquid leakage during actual use, and has a certain influence on chemical experiments. UTILITY MODEL CONTENT

[0005] (I) technical problem solved

[0006] In order to overcome the above defects of the prior art, the utility model provides a chemical burette of preventing liquid leakage, which solves the problems in the prior art that:

[0007] The prior art does not set a valve at the top of the burette to close the parts, which may be prone to liquid leakage during actual use, and has a certain influence on chemical experiments.

[0008] (II) technical scheme

[0009] In order to achieve the above purpose, the utility model realizes the following technical scheme: a chemical burette of preventing liquid leakage, including sleeve, the inner side wall of sleeve is detachably connected with burette for storage, the top of burette is detachably connected with valve for sealing, the top of valve is fixedly installed with connecting pipe, the top of connecting pipe is sleeved with rubber capsule, the bottom of rubber capsule is clamped with fixing ring.

[0010] As a preferred, the bottom of sleeve is fixedly connected with flat plate for supporting, the bottom of flat plate is detachably connected with foot prop.

[0011] As preferable, the top of the foot prop is fixedly connected with a square plate for installation, and a threaded hole is formed in the upper surface of the square plate.

[0012] As preferable, the outer surface of the burette is provided with a scale for measurement, and the top of the burette is fixedly connected with a limiting disc for installation.

[0013] As preferable, the side of the valve is fixedly installed with a knob for rotation, and the upper and lower ends of the valve are fixedly installed with a disc for installation.

[0014] As preferable, the bottom of the connecting pipe is fixedly connected with a connecting disc, and the bottom of the connecting disc is detachably connected with the top of the valve.

[0015] As preferable, the side of the fixed ring is detachably connected with a hinge, and the side of the hinge is detachably connected with a secondary ring.

[0016] As preferable, the side of the secondary ring is fixedly connected with a connecting plate, and the side of the connecting plate is provided with a circular hole for connection.

[0017] (Three) beneficial effects

[0018] The utility model provides a chemical burette of preventing liquid leakage has the following beneficial effects:

[0019] The chemical burette of preventing liquid leakage, through the cooperation between the burette and the valve, can make the device more convenient and practical. The operator first inserts the bottom of the burette into the liquid to be sucked, then presses the rubber capsule, and the liquid is sucked into the burette. After the suction is completed, the valve is closed, the top of the burette is in a sealed state, the probability of dripping is effectively reduced during the movement of the burette after sucking the liquid, and the safety of the operator during operation is improved. ACCURACY OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is a foot prop structural schematic view of the utility model;

[0022] Figure 3 It is a burette structural schematic view of the utility model;

[0023] Figure 4 It is a valve structural schematic view of the utility model;

[0024] Figure 5 It is a fixed ring structural schematic view of the utility model;

[0025] Figure 6 It is a connecting plate structural schematic view of the utility model.

[0026] In the diagram: 1. Sleeve; 2. Burette; 3. Valve; 4. Connecting pipe; 5. Rubber bladder; 6. Fixing ring; 7. Flat plate; 8. Foot support; 9. Square plate; 10. Threaded hole; 11. Scale; 12. Limiting plate; 13. Paddle; 14. Disc; 15. Connecting plate; 16. Hinge; 17. Secondary ring; 18. Connecting plate; 19. Round hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1 to 6 This utility model provides a technical solution: a leak-proof chemical burette, which is mainly used in scenarios where leakage of the burette is prevented.

[0029] Example 1:

[0030] Please see Figures 1 to 6 In order to provide a suitable storage location for the burette 2, a sleeve 1 was provided;

[0031] The device includes a sleeve 1, with a flat plate 7 fixedly connected to the bottom of the sleeve 1 for support. A foot support 8 is detachably connected to the bottom of the flat plate 7. The flat plate 7 allows the foot support 8 to have a suitable installation position, and the foot support 8 can make the whole device more stable. A square plate 9 for installation is fixedly connected to the top of the foot support 8. A threaded hole 10 is opened on the upper surface of the square plate 9. The fit between the square plate 9 and the threaded hole 10 can make the foot support 8 more securely installed.

[0032] Example 2:

[0033] Please see Figures 1 to 6 In order to ensure that the burette 2 has good sealing performance, the burette 2 and valve 3 are provided;

[0034] The inner wall of the sleeve 1 is detachably connected to a burette 2 for storage. The top of the burette 2 is detachably connected to a valve 3 for sealing. The outer surface of the burette 2 is provided with a scale 11 for measurement. The top of the burette 2 is fixedly connected to a limiting plate 12 for installation. The scale 11 allows the operator to easily observe the amount of chemical reagent drawn up. The limiting plate 12 makes it easier to connect the burette 2 to the valve 3. A rotating lever 13 is fixedly installed on the side of the valve 3. A disc 14 for installation is fixedly installed at both the upper and lower ends of the valve 3. The lever 13 makes it easier for the operator to control the opening and closing of the valve 3. The disc 14 makes the valve 3 more securely installed.

[0035] Example 3:

[0036] Please see Figures 1 to 6 In order to enable the device to have a better ability to absorb chemical liquids, a connecting tube 4, a rubber bladder 5, and a fixing ring 6 are provided.

[0037] A connecting pipe 4 is fixedly installed on the top of valve 3. A rubber bladder 5 is sleeved on the top of the connecting pipe 4. A fixing ring 6 is snapped into the bottom of the rubber bladder 5. A connecting plate 15 is fixedly connected to the bottom of the connecting pipe 4. The bottom of the connecting plate 15 is detachably connected to the top of valve 3. The setting of the connecting plate 15 allows the connecting pipe 4 to be installed in a more suitable position with valve 3. A hinge 16 is detachably connected to the side of the fixing ring 6. A secondary ring 17 is detachably connected to the side of the hinge 16. The setting of the hinge 16 allows the fixing ring 6 to rotate more smoothly when opening and closing. The setting of the secondary ring 17 allows the fixing ring 6 to better connect the rubber bladder 5 and the connecting pipe 4. A connecting plate 18 is fixedly connected to the side of the secondary ring 17. A round hole 19 for connection is opened on the side of the connecting plate 18. The cooperation between the connecting plate 18 and the round hole 19 makes the connection between the fixing ring 6 and the secondary ring 17 more secure.

[0038] In this invention, the working steps of the device are as follows:

[0039] 1. First, remove the burette 2 from the sleeve 1. After removing it, insert the burette 2 into the liquid to be drawn.

[0040] 2. Next, press the rubber bladder 5 to draw the chemical reagent into the burette 2. After the reagent is completely drawn out, close the valve 3 to seal the top of the burette 2.

[0041] 3. Then, remove burette 2 from the chemical reagent bottle and move it to the position where the liquid needs to be dispensed;

[0042] 4. Finally, open valve 3 and press rubber bladder 5 to start dripping. After dripping is finished, clean the device for future use.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leak-proof chemical burette, comprising a sleeve (1), characterized in that: The inner wall of the sleeve (1) is detachably connected to a burette (2) for storage. The top of the burette (2) is detachably connected to a valve (3) for sealing. A connecting pipe (4) is fixedly installed on the top of the valve (3). A rubber bladder (5) is sleeved on the top of the connecting pipe (4). A retaining ring (6) is snapped into the bottom of the rubber bladder (5).

2. The leak-proof chemical burette according to claim 1, characterized in that: The bottom of the sleeve (1) is fixedly connected to a plate (7) for support, and the bottom of the plate (7) is detachably connected to a foot support (8).

3. A leak-proof chemical burette according to claim 2, characterized in that: The top of the foot support (8) is fixedly connected to a square plate (9) for installation, and the upper surface of the square plate (9) is provided with threaded holes (10).

4. A leak-proof chemical burette according to claim 1, characterized in that: The outer surface of the burette (2) is provided with a scale (11) for measurement, and the top of the burette (2) is fixedly connected with a limiting plate (12) for installation.

5. A leak-proof chemical burette according to claim 1, characterized in that: A rotating paddle (13) is fixedly installed on the side of the valve (3), and a mounting disc (14) is fixedly installed at both the upper and lower ends of the valve (3).

6. A leak-proof chemical burette according to claim 1, characterized in that: The bottom of the connecting pipe (4) is fixedly connected to a connecting plate (15), and the bottom of the connecting plate (15) is detachably connected to the top of the valve (3).

7. A leak-proof chemical burette according to claim 1, characterized in that: The side of the fixing ring (6) is detachably connected to a hinge (16), and the side of the hinge (16) is detachably connected to a secondary ring (17).

8. A leak-proof chemical burette according to claim 7, characterized in that: A connecting plate (18) is fixedly connected to the side of the sub-ring (17), and a round hole (19) for connection is provided on the side of the connecting plate (18).

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