Acid-resistant dropper convenient to compare

Abstract

The utility model discloses an acidproof dropper convenient to compare, which comprises an acidproof dropper main body, a rubber nipple main body is arranged on the outer surface of the acidproof dropper main body, the outer surface of the acidproof dropper main body is fixedly connected with a connecting box, and the left surface of the connecting box is fixedly connected with a fixed seat. And the inner surface of the fixed seat is fixedly connected with a fixed column. The pH value colorimetric card is arranged in the connecting box, so that the pH value of a solution can be quickly and directly compared and judged visually, additional colorimetric tools are not needed, the working efficiency is improved, the pH value colorimetric card can be protected through the connecting box, the fixing base, the fixing column, the overturning base, the glass cover plate, the buckle base and the limiting assembly, and meanwhile the pH value colorimetric card can be prevented from being damaged. The PH value colorimetric card can be conveniently replaced, so that the practicability of the dropper is improved, and meanwhile, the amount of liquid transferred in each experiment can be ensured to be consistent through the arrangement of scale marks outside the glass cover plate, so that the reliability of a test result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of droppers, in particular to an acid-resistant dropper which is convenient for comparison. Background Art

[0002] Acid-resistant dropper is a laboratory tool specially designed for handling and transferring acidic solutions. It is widely used in chemical laboratories, industrial production, environmental monitoring and other fields.

[0003] However, existing acid-resistant droppers still have certain defects. For example, when comparing the pH of solutions, the operation is rather cumbersome and requires carrying a pH colorimetric card, which is inconvenient. Secondly, the amount of liquid transferred in the dropper is usually determined by the operator's experience, which is uncertain and affects the reliability of the experimental results. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art, and to provide an acid-resistant dropper that is convenient for comparison. By setting the pH colorimetric card inside the connecting box, the pH value of the solution can be visually compared and judged quickly and directly without the need for additional colorimetric tools, thereby improving work efficiency. In addition, the pH colorimetric card can be protected while being conveniently replaced by setting the connecting box, the fixing seat, the fixing column, the flip seat, the glass cover, the snap seat, and the limit assembly, thereby improving the practicality of the dropper. At the same time, the setting of the scale lines on the outside of the glass cover can ensure that the amount of liquid transferred in each experiment is consistent, thereby improving the reliability of the test results.

[0005] The utility model also provides an acid-resistant dropper with the above-mentioned convenient comparison, comprising:

[0006] An acid-resistant tube body main body, the outer surface of which is provided with a rubber nipple main body, the outer surface of which is fixedly connected to a connection box, the left surface of which is fixedly connected to a fixing seat, the inner surface of which is fixedly connected to a fixing column, the outer surface of which is rotatably connected to a flip seat, the right surface of which is fixedly connected to a glass cover plate, the right surface of which is fixedly connected to a snap seat, the front surface of which is provided with a scale line, and the inner surface of which is provided with a pH colorimetric card.

[0007] The limit assembly includes a fixed box, a sliding rod, a limit slider, a spring, a connecting plate, a fixed plate and an insert block. The inner surface of the fixed box is fixedly connected to the sliding rod, the right surface of the limit slider is fixedly connected to the spring, the right end of the connecting plate is fixedly connected to the fixed plate, and the left surface of the fixed plate is fixedly connected to the insert block.

[0008] According to the acid-resistant dropper convenient for comparison, a jack is arranged on the right surface of the buckle seat, and the inner surface of the jack is adapted to the plug block, which is convenient for the closing of the glass cover plate.

[0009] According to the acid-resistant dropper convenient for comparison, a limiting groove is arranged on the front surface of the fixed box, and the inner surface of the limiting groove is adapted to the limiting sliding block, which is used for limiting the movement of the limiting sliding block.

[0010] According to the acid-resistant dropper convenient for comparison, the front surface of the connection box is in contact with the glass cover plate, and the right surface of the glass cover plate is fixedly connected to the fixed box.

[0011] According to the acid-resistant dropper convenient for comparison, the outer surface of the sliding rod is slidably connected to the limiting sliding block, and the spring is slidably sleeved on the outer surface of the sliding rod.

[0012] According to the acid-resistant dropper convenient for comparison, one end of the spring away from the limiting sliding block is fixedly connected to the fixed box, and the right surface of the limiting sliding block is fixedly connected to the connecting plate.

[0013] According to the acid-resistant dropper convenient for comparison, the right surface of the buckle seat is in contact with the fixed plate, and the right surface of the fixed box is in contact with the fixed plate.

[0014] According to the acid-resistant dropper convenient for comparison, the front surface of the fixed box is in contact with the connecting plate.

[0015] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0017] Figure 1 is the overall structural schematic diagram of an acid-resistant dropper convenient for comparison of the present utility model;

[0018] Figure 2 is Figure 1 the enlarged structural schematic diagram of part A in;

[0019] Figure 3 is Figure 1 the enlarged structural schematic diagram of part B in;

[0020] Figure 4 is the schematic diagram of the open state of part of the structure of an acid-resistant dropper convenient for comparison of the present utility model;

[0021] Figure 5This is a cross-sectional view of the internal part structure of an acid-resistant dropper for convenient comparison of the present utility model.

[0022] Legend Explanation:

[0023] 1. Acid-resistant tube body main body; 2. Rubber nipple main body; 3. Connection box; 4. Fixed seat; 5. Fixed column; 6. Flipping seat; 7. Glass cover plate; 8. Buckle seat; 9. Scale line; 10. pH value color comparison card; 11. Limit component; 12. Fixed box; 13. Slide bar; 14. Limit slider; 15. Spring; 16. Connection plate; 17. Fixed plate; 18. Insert block; 19. Insertion hole; 20. Limit groove. Specific Embodiment

[0024] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation to the protection scope of the present utility model.

[0025] Referring to Figures 1-5 , an acid-resistant dropper for convenient comparison in an embodiment of the present utility model includes: an acid-resistant tube body main body 1, a rubber nipple main body 2 is arranged on the outer surface of the acid-resistant tube body main body 1, a connection box 3 is fixedly connected to the outer surface of the acid-resistant tube body main body 1, a fixed seat 4 is fixedly connected to the left surface of the connection box 3, a fixed column 5 is fixedly connected to the inner surface of the fixed seat 4, a flipping seat 6 is rotatably connected to the outer surface of the fixed column 5, a glass cover plate 7 is fixedly connected to the right surface of the flipping seat 6, a buckle seat 8 is fixedly connected to the right surface of the connection box 3, a scale line 9 is arranged on the front surface of the glass cover plate 7, a pH value color comparison card 10 is arranged on the inner surface of the connection box 3, an insertion hole 19 is arranged on the right surface of the buckle seat 8, and the front surface of the connection box 3 is in contact with the glass cover plate 7.

[0026] The limiting assembly 11 includes a fixed box 12, a slide bar 13, a limiting slider 14, a spring 15, a connecting plate 16, a fixed plate 17 and an insert 18. The inner surface of the fixed box 12 is fixedly connected to the slide bar 13, the right surface of the limiting slider 14 is fixedly connected to the spring 15, the right end of the connecting plate 16 is fixedly connected to the fixed plate 17, the left surface of the fixing plate 17 is fixedly connected to the insert 18, the inner surface of the socket 19 is adapted to the insert 18, and the front surface of the fixed box 12 is provided with a limiting groove 20, the inner surface of the limiting groove 20 is fixedly connected to the fixing plate 17, and the inner surface of the fixing plate 17 is fixedly connected to the insert 18. The surface is adapted to the limit slider 14, the right surface of the glass cover 7 is fixedly connected to the fixing box 12, the outer surface of the slide rod 13 is slidingly connected to the limit slider 14, the spring 15 is slidably sleeved on the outer surface of the slide rod 13, and the end of the spring 15 away from the limit slider 14 is fixedly connected to the fixing box 12, the right surface of the limit slider 14 is fixedly connected to the connecting plate 16, the right surface of the snap seat 8 is in contact with the fixing plate 17, the right surface of the fixing box 12 is in contact with the fixing plate 17, and the front surface of the fixing box 12 is in contact with the connecting plate 16.

[0027] Working principle: When in use, insert the acid-resistant tube body 1 into the solution with detection, then squeeze the rubber nipple body 2 to absorb the solution into the interior of the acid-resistant tube body 1. The amount of solution absorbed can be directly observed through the scale line 9, so as to ensure that the amount of liquid transferred each time is consistent. Then, drop the solution on the test paper. The color change of the test paper can be directly compared with the pH value colorimetric card 10 inside the connection box 3 to quickly and directly judge the pH value of the solution. It is simple and convenient. When the pH value colorimetric card 10 needs to be replaced, just push the limit slider 14 along the inside of the limit groove 20 to drive the connecting plate 16 to the fixed plate 17. Under the action, the plug block 18 is driven to disengage from the inside of the hole 19 and compress the spring 15, so that the restriction on the glass cover 7 can be released. Then, the glass cover 7 can be opened around the fixing column 5 to remove the pH colorimetric card 10 inside the connection box 3, and then a new pH colorimetric card 10 is placed inside the connection box 3, and the glass cover 7 is turned over again. When the plug block 18 corresponds to the hole 19 again, the limit slider 14 is released. Under the action of the restoring force of the spring 15, the plug block 18 will automatically snap into the hole 19, completing the closure of the glass cover 7, realizing the protection of the pH colorimetric card 10, and improving the durability of the pH colorimetric card 10.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An acid-resistant dropper for convenient comparison, characterized in that Comprising: An acid-resistant tube body main body (1), an outer surface of the acid-resistant tube body main body (1) is provided with a rubber nipple main body (2), an outer surface of the acid-resistant tube body main body (1) is fixedly connected with a connection box (3), a left surface of the connection box (3) is fixedly connected with a fixing seat (4), an inner surface of the fixing seat (4) is fixedly connected with a fixing column (5), an outer surface of the fixing column (5) is rotatably connected with a flipping seat (6), a right surface of the flipping seat (6) is fixedly connected with a glass cover plate (7), a right surface of the connection box (3) is fixedly connected with a buckle seat (8), a front surface of the glass cover plate (7) is provided with scale lines (9), and an inner surface of the connection box (3) is provided with a pH color comparison card (10); A limiting component (11), the limiting component (11) includes a fixing box (12), a sliding rod (13), a limiting sliding block (14), a spring (15), a connecting plate (16), a fixing plate (17) and an inserting block (18), an inner surface of the fixing box (12) is fixedly connected with the sliding rod (13), a right surface of the limiting sliding block (14) is fixedly connected with the spring (15), a right end of the connecting plate (16) is fixedly connected with the fixing plate (17), and a left surface of the fixing plate (17) is fixedly connected with the inserting block (18).

2. The acid-resistant dropper convenient for comparison according to claim 1, characterized in that, A jack (19) is provided on a right surface of the buckle seat (8), and an inner surface of the jack (19) is adapted to the inserting block (18).

3. The acid-resistant dropper for convenient comparison according to claim 1, wherein A limiting groove (20) is provided on a front surface of the fixing box (12), and an inner surface of the limiting groove (20) is adapted to the limiting sliding block (14).

4. The acid-resistant dropper for convenient comparison according to claim 1, wherein A front surface of the connection box (3) is in contact with the glass cover plate (7), and a right surface of the glass cover plate (7) is fixedly connected with the fixing box (12).

5. The acid-resistant dropper convenient for comparison according to claim 1, characterized in that, An outer surface of the sliding rod (13) is slidably connected with the limiting sliding block (14), and the spring (15) is slidably sleeved on the outer surface of the sliding rod (13).

6. The acid-resistant dropper convenient for comparison according to claim 1 is characterized in that, One end of the spring (15) far from the limiting sliding block (14) is fixedly connected with the fixing box (12), and a right surface of the limiting sliding block (14) is fixedly connected with the connecting plate (16).

7. The acid-resistant dropper convenient for comparison according to claim 1, characterized in that, A right surface of the buckle seat (8) is in contact with the fixing plate (17), and a right surface of the fixing box (12) is in contact with the fixing plate (17).

8. The acid-resistant dropper convenient for comparison according to claim 1, characterized in that, A front surface of the fixing box (12) is in contact with the connecting plate (16).

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