Quantitative detection dropper for domestic water

Abstract

The utility model discloses a quantitative detection dropper for domestic water, which relates to the related field of quantitative detection of drinking water and comprises a liquid storage cavity, a liquid suction pipe fixedly connected to the bottom end of the liquid storage cavity, a rubber sleeve arranged at the bottom end of the liquid suction pipe, a pressing mechanism arranged at the top of the liquid storage cavity and a communicating pipe fixedly connected to the top of the liquid storage cavity. The sealing plug is taken out of the communicating pipe, the liquid suction pipe and the liquid storage cavity are inserted into domestic water, the communicating pipe is submerged by the water surface, the pressing mechanism works, the bottom end of the liquid suction pipe is sealed by the rubber sleeve, air in the liquid storage cavity is exhausted from the communicating pipe, and the pressing mechanism is loosened, so that the liquid suction pipe and the liquid storage cavity are sealed, and the liquid suction pipe and the liquid storage cavity are sealed. Domestic water is sucked into the liquid storage cavity through negative pressure in the liquid storage cavity, the communicating pipe is arranged at the top of the liquid storage cavity, the end of the communicating pipe is vertically upward, and samples can be sucked repeatedly, so that when the domestic water is detected, repeated sampling is not needed, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of quantitative detection of drinking water, and specifically relates to a quantitative detection dropper for domestic water. Background Art

[0002] Droppers are divided into fat-bellied droppers and common droppers, which are composed of rubber nipples and pointed glass tubes, and are used to suck or add a small amount of reagents, as well as suck the supernatant and separate the precipitate. When using a dropper, pinch the rubber nipple with your finger to expel the air in the dropper, then insert the dropper into the reagent bottle, release your finger, and the reagent will be sucked in; after taking the liquid, the dropper should keep the rubber head above, do not place it horizontally or upside down to prevent the solution from flowing back and corroding the rubber head.

[0003] When the existing rubber dropper samples domestic water, press the rubber head to expel the air in the dropper, then release the rubber head, and the negative pressure in the dropper will suck the water into the dropper. The size of the sample taken each time is only the amount of pressing the rubber head once. During detection, multiple samplings are required, which is relatively cumbersome.

[0004] In order to solve the above problems, we made improvements and proposed a quantitative detection dropper for domestic water. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model provides a quantitative detection dropper for domestic water, including a liquid storage cavity. The bottom end of the liquid storage cavity is fixedly connected with a liquid suction tube. The bottom end of the liquid suction tube is provided with a rubber sleeve. The top of the liquid storage cavity is provided with a pressing mechanism. The top of the liquid storage cavity is fixedly connected with a communicating pipe, and the end of the communicating pipe arranged inside the liquid storage cavity inclines upward. A sealing plug is installed inside the communicating pipe.

[0007] As a preferred technical solution of the utility model, the pressing mechanism includes a piston tube, and the piston tube is arranged at the top of the liquid storage cavity. A piston plate is slidably connected inside the piston tube. The top end of the piston plate is fixedly connected with a connecting rod, and the connecting rod penetrates to the outside of the piston tube. The top end of the connecting rod is fixedly connected with a pressing plate. A spring is sleeved outside the connecting rod, and the upper and lower ends of the spring respectively abut against the pressing plate and the piston tube.

[0008] As a preferred technical solution of the utility model, the top end of the piston tube is fixedly connected with a sleeve, and a threaded rod is threadedly connected inside the sleeve.

[0009] As a preferred technical solution of the utility model, the bottom end of the piston tube is fixedly connected with a connecting sleeve, and a connecting head is threadedly connected inside the connecting sleeve, and the connecting head is fixedly connected to the top end of the liquid storage cavity.

[0010] As a preferred technical solution of the present utility model, a collar is sleeved outside the connection head, and the collar is sleeved at the bottom end of the connection sleeve.

[0011] As a preferred technical solution of the present utility model, a hemispherical block is fixedly connected to the top end of the threaded rod, and the hemispherical block has a certain elasticity.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, by taking out the sealing plug from the communicating pipe, inserting the liquid suction pipe and the liquid storage cavity into domestic water, and making the water surface submerge the communicating pipe, the pressing mechanism works. Since the bottom end of the liquid suction pipe is closed by the rubber sleeve, the air in the liquid storage cavity is discharged from the communicating pipe. After releasing the pressing mechanism, the negative pressure in the liquid storage cavity sucks the domestic water into the liquid storage cavity. Moreover, the communicating pipe is arranged at the top of the liquid storage cavity, and the end of the communicating pipe is vertically upward, so that the sample can be inhaled repeatedly. In this way, when detecting domestic water, there is no need to take samples multiple times, and it is more convenient to use.

[0014] 2. In the present utility model, the threaded rod rotates in the sleeve, and the overall height of the threaded rod and the sleeve can be changed. During the downward movement of the pressing plate, the pressing plate stops after acting on the top of the threaded rod, thereby controlling the downward stroke of the pressing plate, and further controlling the discharge amount and inhalation amount of the dropper. Description of the Drawings

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a partial cross-sectional view of the present utility model;

[0018] Figure 3 is an exploded view of the present utility model;

[0019] In the figures: 1. Liquid storage cavity; 2. Liquid suction pipe; 3. Rubber sleeve; 4. Piston pipe; 5. Pressing plate; 6. Communicating pipe; 7. Sealing plug; 8. Spring; 9. Threaded rod; 10. Sleeve; 11. Collar; 12. Connecting rod; 13. Piston plate; 14. Connecting sleeve; 15. Connection head. Detailed Embodiments

[0020] The following describes the preferred embodiments of the present utility model with reference to the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0021] Embodiment: As Figures 1 - 3 shown, a quantitative detection dropper for domestic water includes a liquid storage chamber 1. A liquid suction pipe 2 is fixedly connected to the bottom end of the liquid storage chamber 1. A rubber sleeve 3 is arranged at the bottom end of the liquid suction pipe 2. A pressing mechanism is arranged at the top of the liquid storage chamber 1. A communicating pipe 6 is fixedly connected to the top of the liquid storage chamber 1, and the end of the communicating pipe 6 inside the liquid storage chamber 1 is inclined upward. A sealing plug 7 is installed inside the communicating pipe 6. Take out the sealing plug 7 from the communicating pipe 6, insert the liquid suction pipe 2 and the liquid storage chamber 1 into domestic water, and the water surface submerges the communicating pipe 6. The pressing mechanism works. Since the bottom end of the liquid suction pipe 2 is closed by the rubber sleeve 3, the air in the liquid storage chamber 1 is discharged from the communicating pipe 6. Release the pressing mechanism, and the negative pressure in the liquid storage chamber 1 sucks the domestic water into the liquid storage chamber 1. And the communicating pipe 6 is arranged at the top of the liquid storage chamber 1, and the end of the communicating pipe 6 is vertically upward, so that the sample can be inhaled repeatedly. In this way, when detecting domestic water, there is no need to sample multiple times, which is more convenient to use.

[0022] Specifically, as Figure 1 , Figure 2 and Figure 3 shown, the pressing mechanism includes a piston tube 4, and the piston tube 4 is arranged at the top of the liquid storage chamber 1. A piston plate 13 is slidably connected inside the piston tube 4. A connecting rod 12 is fixedly connected to the top end of the piston plate 13, and the connecting rod 12 penetrates to the outside of the piston tube 4. A pressing plate 5 is fixedly connected to the top end of the connecting rod 12. A spring 8 is sleeved outside the connecting rod 12, and the upper and lower ends of the spring 8 are respectively abutted against the pressing plate 5 and the piston tube 4. The thumb acts on the pressing plate 5, presses the pressing plate 5 downward, and makes the piston plate 13 move downward along the piston tube 4 through the connecting rod 12. Then release the pressing plate 5, and the restoring action of the spring 8 resets the pressing plate 5, waiting for the next pressing operation.

[0023] Specifically, as Figure 2 and Figure 3 shown, a sleeve 10 is fixedly connected to the top end of the piston tube 4. A threaded rod 9 is threadedly connected inside the sleeve 10. The threaded rod 9 rotates inside the sleeve 10, and the overall height of the threaded rod 9 and the sleeve 10 can be changed. During the downward movement of the pressing plate 5, the pressing plate 5 will stop after acting on the top of the threaded rod 9, thereby controlling the downward stroke of the pressing plate 5, and further controlling the discharge amount and inhalation amount of the dropper. The number of the sleeve 10 and the threaded rod 9 can be increased according to the actual situation.

[0024] Specifically, as Figure 2 and Figure 3As shown, a connecting sleeve 14 is fixedly connected to the bottom end of the piston tube 4. A connecting head 15 is threadedly connected inside the connecting sleeve 14, and the connecting head 15 is fixedly connected to the top end of the liquid storage chamber 1. A collar 11 is sleeved outside the connecting head 15, and the collar 11 is sleeved at the bottom end of the connecting sleeve 14. The liquid storage chamber 1 and the pressing assembly are connected through the connecting head 15 and the connecting sleeve 14. Since the materials of the liquid storage chamber 1 of the dropper and the liquid suction tube 2 are often glass, which are fragile items, the cost can be reduced by replacing the lower half of the dropper.

[0025] Specifically, as Figure 2 shown, a hemispherical block is fixedly connected to the top end of the threaded rod 9, and the hemispherical block has a certain elasticity. When the pressing plate 5 acts on the top end of the threaded rod 9, it contacts the hemispherical block. The elastic hemispherical block contacts the pressing plate 5, playing a buffering role and protecting the pressing plate 5.

[0026] Working principle: Take out the sealing plug 7 from the communicating pipe 6, insert the liquid suction tube 2 and the liquid storage chamber 1 into domestic water, and the water surface is above the communicating pipe 6. The pressing mechanism works. The thumb acts on the pressing plate 5 and presses the pressing plate 5 downward. The piston plate 13 moves downward along the piston tube 4 through the connecting rod 12. Since the bottom end of the liquid suction tube 2 is closed by the rubber sleeve 3, the air in the liquid storage chamber 1 is discharged from the communicating pipe 6. Release the pressing mechanism, and the restoring action of the spring 8 resets the pressing plate 5. The negative pressure in the liquid storage chamber 1 sucks domestic water into the liquid storage chamber 1. The communicating pipe 6 is arranged at the top of the liquid storage chamber 1, and the end of the communicating pipe 6 is vertically upward, so the sample can be inhaled repeatedly;

[0027] When using the sample, re-insert the sealing plug 7 into the communicating pipe 6, remove the rubber sleeve 3, and squeeze out the sample in the liquid storage chamber 1 through the pressing mechanism. The pressing plate 5 moves to the top of the hemispherical block to achieve quantitative titration.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quantitative detection dropper for domestic water, comprising a liquid storage cavity (1), characterized in that, The bottom end of the liquid storage cavity (1) is fixedly connected to a liquid suction pipe (2). A rubber sleeve (3) is arranged at the bottom end of the liquid suction pipe (2). A pressing mechanism is arranged at the top of the liquid storage cavity (1). The top of the liquid storage cavity (1) is fixedly connected to a communicating pipe (6), and one end of the communicating pipe (6) arranged inside the liquid storage cavity (1) is inclined upward. A sealing plug (7) is installed inside the communicating pipe (6).

2. The quantitative detection dropper for domestic water according to claim 1, characterized in that, The pressing mechanism includes a piston pipe (4), and the piston pipe (4) is arranged at the top of the liquid storage cavity (1). A piston plate (13) is slidably connected inside the piston pipe (4). The top end of the piston plate (13) is fixedly connected to a connecting rod (12), and the connecting rod (12) penetrates to the outside of the piston pipe (4). The top end of the connecting rod (12) is fixedly connected to a pressing plate (5). A spring (8) is sleeved outside the connecting rod (12), and the upper and lower ends of the spring (8) are respectively abutted against the pressing plate (5) and the piston pipe (4).

3. The quantitative detection dropper for domestic water according to claim 2, wherein The top end of the piston pipe (4) is fixedly connected to a sleeve (10). A threaded rod (9) is threadedly connected inside the sleeve (10).

4. A quantitative detection dropper for domestic water according to claim 2, characterized in that, The bottom end of the piston pipe (4) is fixedly connected to a connecting sleeve (14). A connecting head (15) is threadedly connected inside the connecting sleeve (14), and the connecting head (15) is fixedly connected to the top end of the liquid storage cavity (1).

5. A quantitative detection dropper for domestic water according to claim 4, characterized in that, A collar (11) is sleeved outside the connecting head (15), and the collar (11) is sleeved at the bottom end of the connecting sleeve (14).

6. A quantitative detection dropper for domestic water according to claim 3, characterized in that, The top end of the threaded rod (9) is fixedly connected to a hemispherical block, and the hemispherical block has a certain elasticity.

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