CN206184470U - Filter dropping liquid spoon for chemistry experiments - Google Patents

Abstract

The utility model discloses a filter drop spoon for chemical experiments, which belongs to the field of chemical experiment appliances. It includes a spoon body and a spoon handle; the end of the spoon handle away from the spoon body is provided with a filter section with a filter element, and the end of the filter section is connected to the latex body; the spoon handle is provided with a cavity connecting the bottom of the spoon body and the filter section. When there is liquid medicine in the body, squeeze the latex body to suck the liquid medicine into the filter section; the latex body is connected with a sharp nozzle tube, and a one-way valve is set at the end of the sharp mouth tube close to the latex body; the spoon handle setting can control the opening and closing of the cavity switch valve. The utility model can filter and remove impurities from the liquid chemical medicines to be used, thereby improving the purity of the medicines and ensuring the accuracy of chemical experiments, and has the advantages of simple structure, ingenious design, convenience and practicality.

Description

A filter drop spoon for chemical experiments

technical field

The utility model belongs to the field of chemical experiment utensils, and more specifically relates to a filter drop spoon for chemical experiments.

Background technique

At present, in the chemistry education of schools, experiments are often needed to cooperate with students' understanding. The medicine-taking tools used in chemical laboratories are generally medicine-taking spoons, which are ordinary spoons consisting of a spoon body and a spoon handle. In the laboratory, the medicine spoon generally takes solid powder medicine, and sometimes also takes liquid medicine, and uses it together with a dropper. Due to various reasons, such as long-term storage, exposure to air, etc., liquid medicines for chemical experiments often contain some impurities, which make the liquid turbid. They need to be treated in the laboratory to prevent the liquid from being pure enough to affect the reaction effect or the actual dosage. Different from the required dosage, causing the experiment to fail. Therefore, how to remove impurities contained in liquid medicines in the laboratory is very important to the accuracy of the experiment.

In the prior art, there are many improvements to the medicine spoon used in chemical experiments, such as the Chinese patent application number: 201020512453.X, and the publication date is: the patent document on March 16, 2011, which discloses a special spoon for chemical experiments. The medicine spoon belongs to a kind of auxiliary equipment for chemical experiments. The upper surface of the front side of the spoon head is covered with a baffle, and the rear part of the spoon handle is provided with external threads. The inside of the casing is provided with an internal thread matched with the external thread of the spoon handle, and the rear end of the outside of the casing is provided with an external thread. Compared with the prior art, the new special medicine-taking spoon for chemical experiments has the characteristics of reasonable design, simple structure, and convenient use.

As another example, the Chinese patent application number is: 201520312762.5, and the publication date is: the patent document on September 9, 2015, which discloses a weighing and taking medicine spoon for chemical experiments, including an electronic weighing device, a female spoon, a child spoon, Dial block, push rod, spoon handle and weight display device, the front end of the spoon handle is integrally fixedly connected to the mother spoon, a child spoon is arranged inside the mother spoon, and an electronic weighing device is installed in the mother spoon below the child spoon. The weighing device is connected to the circuit of the weight display device, and the weight display device is arranged at the rear of the spoon handle, and the circuit of the weight display device is connected to the measuring switch. Material block, the middle part of the push rod is fixedly connected with a push-pull block, and the push-pull block is slidably arranged in the chute on the handle of the spoon. The weighing medicine-taking spoon for the chemical test has a simple structure and is easy to operate, making it easier to take medicine. It is more convenient and precise, and it is convenient for the operator to control the amount of medicine taken, and the use effect is good, and it is suitable for the precise weighing of chemical medicines.

The above two medicine spoons are all improved for the convenience of chemical experiments, either to facilitate the taking of medicines, not easy to scatter, or to improve the accuracy of medicine dosage, but when they are used for taking liquid medicines, they cannot remove the substances contained in medicines. impurities, resulting in the actual dosage of the drug being less than the theoretical dosage, which affects the accuracy of the chemical experiment.

Contents of the invention

1. Problems to be solved

Aiming at the problem that there are impurities in the liquid medicine used in the existing chemical experiment, which causes the accuracy of the experiment to decrease, the utility model provides a filter drop spoon for the chemical experiment, which can filter and remove impurities from the liquid chemical medicine taken, thereby improving the quality of the medicine. Purity, to ensure the accuracy of chemical experiments.

2. Technical solution

In order to solve the above problems, the utility model adopts the following technical solutions.

A filter drop spoon for chemical experiments, comprising a spoon body and a spoon handle; the end of the spoon handle away from the spoon body is provided with a filter section, the end of the filter section is connected to an latex body, and a filter element is housed in the filter section; the spoon There is a cavity in the handle, one end of which is connected to the bottom of the spoon body, and the other end is connected to the filter section. When there is liquid medicine in the spoon body, the liquid medicine can be sucked into the filter section by squeezing the emulsion.

As a further improvement of the utility model, the material of the latex body is rubber; the filter element adopts a polyethersulfone membrane, a nylon membrane, a polypropylene membrane, a polytetrafluoroethylene membrane or a polyvinylidene fluoride membrane filter element.

As a further improvement of the utility model, the latex body is connected with a sharp mouth tube, and one end of the sharp mouth pipe close to the latex body is provided with a one-way valve; the handle of the spoon is provided with an on-off valve, which can control the on-off of the cavity.

As a further improvement of the utility model, the pointed mouth tube is a transparent glass tube with a scale mark on it.

As a further improvement of the utility model, the opening of the spoon body is provided with a fixed cover that covers part of the opening, a cavity is provided in the fixed cover, a movable cover is provided in the cavity, and the movable cover cooperates with the fixed cover to hold the spoon body closed.

As a further improvement of the utility model, the movable cover is provided with a shifting block for moving the movable cover.

3. Beneficial effects

Compared with the prior art, the beneficial effects of the utility model are:

(1) The filter drop spoon for chemical experiments of the utility model improves the traditional medicine spoon, sets a filter section on the handle of the spoon, houses a filter element, connects the latex body to the filter section, and connects the spoon body and the spoon body through the cavity in the handle The filter section is connected. When the spoon is used to take the liquid medicine for chemical experiments, squeeze the latex and release it. The liquid in the spoon can be sucked into the filter section through the cavity, and the impurities in the liquid can be removed through the filtering effect of the filter element, and the filtration is completed. Finally, the latex is squeezed again, and the liquid flows back into the spoon, so as to improve the purity and ensure the accuracy of the chemical experiment;

(2) The chemical experiment of the utility model is used to filter dripping spoons. The material of the latex body is rubber, just like the rubber nipple on the dropper, which can be squeezed and has a long life. The filter element can adopt polyethersulfone membrane, nylon membrane, polypropylene membrane , Polytetrafluoroethylene membrane or polyvinylidene fluoride membrane filter element, which can remove particles and sterilize liquid chemicals, and the filtration effect is good;

(3) The traditional medicine spoon for chemical experiments is suitable for taking powdery solid medicines, but for liquid medicines, it is inconvenient to drop into the reaction container, especially small-caliber containers, such as test tubes, so the utility model is used for chemical experiments. On the basis of setting the filtering structure for the filter drop spoon, the latex body is connected with a tip tube, and the end of the tip tube close to the latex body is provided with a one-way valve, and the handle of the spoon is set with a switch valve that can control the opening and closing of the cavity. The combined use of the spoon body and the sharp mouth tube can filter the liquid medicine and facilitate the ingestion and dripping of the liquid, which greatly expands its application range;

(4) The filter dropping spoon for the chemical experiment of the utility model, the tip tube is a transparent glass tube, which is provided with a scale mark, so that the capacity of the liquid medicine dripped through the tip tube can be known, and the purpose of accurate measurement can be achieved;

(5) The filter drop spoon for chemical experiments of the utility model, the opening of the spoon body is provided with a fixed cover that covers part of the opening, a cavity is provided in the fixed cover, a movable cover is provided in the cavity, and the movable cover cooperates with the fixed cover The spoon body can be closed, and after the spoon body ingests medicine, the movable cover can seal the spoon body, so as to prevent the medicine from leaking out of the spoon body and improve the operation safety;

(6) The filter drop spoon for chemical experiments of the utility model, the movable cover is provided with a toggle block for toggling the movable cover, which facilitates the toggle operation of the movable cover;

(7) The filter drop spoon for chemical experiment of the utility model has simple structure, ingenious design, convenient and practical.

Description of drawings

Fig. 1 is the structure schematic diagram of a kind of filter dropping spoon used in chemical experiment of the present invention.

In the figure: 1. spoon body; 2. spoon handle; 3. filter section; 4. latex body; 5. filter element; 6. cavity; 7. switch valve; Movable cover; 11, shift block.

detailed description

The utility model is further described below in conjunction with specific embodiments and accompanying drawings.

Example 1

As shown in Fig. 1, a kind of dripping spoon for chemical experiments of the present embodiment comprises a spoon body 1 and a spoon handle 2; The end of section 3 is connected with latex body 4, filter element 5 is housed in filter section 3; Cavity 6 is provided in described spoon handle 2, and its one end is communicated with the bottom in spoon body 1, and the other end is communicated with filter section 3, When the liquid medicine is contained in the spoon body 1 , the liquid medicine can be sucked into the filter section 3 by squeezing the latex body 4 . The dripping spoon for chemical experiments in this embodiment is an improvement on the traditional medicine spoon. After using the spoon to take the liquid medicine for chemical experiments, squeeze the latex body 4 and then release it, so that the liquid in the spoon body 1 can be passed through the air. The cavity 6 is sucked into the filter section 3, and the impurities in the liquid are removed through the filtering function of the filter element 5. After the filtration is completed, the latex body 4 is squeezed again, and the liquid flows back into the spoon body 1, so as to improve the purity and ensure the accuracy of the chemical experiment. sex.

In the present embodiment, the material of the latex body 4 is rubber, just like the rubber nipple on the dropper, it can be squeezed and has a long life; the filter element 5 adopts polyethersulfone membrane, nylon membrane, polypropylene membrane, polytetrafluoroethylene Membrane or polyvinylidene fluoride membrane filter element can remove particles and sterilize and filter liquid chemicals, and has a good filtering effect. This embodiment adopts polyvinylidene fluoride membrane filter element.

Example 2

On the basis of Example 1, a kind of filter dropping spoon for chemical experiment of this embodiment is further improved. The traditional medicine spoon for chemical experiments is suitable for taking powdered solid medicines, but for liquid medicines, it is inconvenient to add the liquid into the reaction container, especially for small-caliber containers, such as test tubes, when adding medicines to the container, The liquid often flows out of the spoon body 1 along the edge of the opening of the spoon body 1, causing waste and possibly danger. Therefore, in the present embodiment, the latex body 4 is connected with a nipple tube 8, and one end of the nipple tube 8 near the latex body 4 is provided with a check valve, and the opening direction of the check valve is from the latex body 4 to the nipple tube 8. The sharp mouth end; the spoon handle 2 is provided with an on-off valve 7, which can control the on-off of the cavity 6. When in use, after the spoon body 1 ingests liquid medicine, squeeze the latex body 4 and then release it, the liquid in the spoon body 1 can be sucked into the filter section 3 through the cavity 6, and the impurities in the liquid can be removed through the filtering effect of the filter element 5 Finally, enter the latex body 4, close the switch valve 7 and lift the spoon body 1, so that the tip end of the pointed mouth tube 8 is downward, squeeze the latex body 4 again, the one-way valve is opened, and the liquid flows from the pointed mouth tube 8. Drip out from the pointed tip to complete the filter drop operation.

It is worth noting that the nozzle tube 8 is a transparent glass tube with scale markings on it, so that the capacity of the liquid medicine dripped through the nozzle tube can be known and the purpose of accurate measurement can be achieved.

In this embodiment, the filter drop spoon for chemical experiments can be used in conjunction with the spoon body 1 and the nozzle tube 8 to filter the liquid medicine and facilitate the ingestion and addition of the liquid, which greatly expands its application range.

Example 3

A filter drop spoon for a chemical experiment of this embodiment is basically the same in structure as that of Embodiment 2, the difference is that: the opening of the spoon body 1 is provided with a fixed cover 9 that covers part of the opening, and the fixed cover A cavity is provided in the 9, and a movable cover 10 is arranged in the cavity, and the movable cover 10 cooperates with the fixed cover 9 to seal the spoon body 1. After the medicine is ingested by the spoon body 1, the movable cover 10 is used to seal the spoon body, so as to prevent the medicine from leaking out of the spoon body and improve the operation safety. At the same time, the movable cover 10 is provided with a toggle block 11 for toggling the movable cover 10 to facilitate the toggle operation of the movable cover 10 .

The above schematically describes the utility model and its implementation, which is not restrictive, and what is shown in the accompanying drawings is only one implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, and without departing from the purpose of the invention of the utility model, without creatively designing a structural mode and an embodiment similar to the technical solution, it shall belong to the utility model. protected range.

Claims (6)

1. a kind of chemical experiment is used to filter drip spoon, comprise spoon body (1) and spoon handle (2), it is characterized in that: described spoon handle (2) is provided with filter section ( 3), the end of the filter section (3) is connected to the latex body (4), and a filter element (5) is housed in the filter section (3); a cavity (6) is provided in the spoon handle (2), and one end of it communicates with To the bottom of the spoon body (1), the other end communicates with the filter section (3). When there is liquid medicine in the spoon body (1), squeezing the latex body (4) can suck the liquid medicine into the filter section (3) . 2. a kind of chemical experiment according to claim 1 is characterized in that: the material of described latex body (4) is rubber; Described filter core (5) adopts polyethersulfone membrane, nylon membrane , Polypropylene membrane, polytetrafluoroethylene membrane or polyvinylidene fluoride membrane filter. 3. according to claim 1 or 2 described a kind of chemical experiment filter drop spoon, it is characterized in that: described latex body (4) is connected with sharp mouth tube (8), in the sharp mouth tube (8) close to One end of the latex body (4) is provided with a one-way valve; the spoon handle (2) is provided with an on-off valve (7), which can control the on-off of the cavity (6). 4. A kind of chemical experiment filter drop spoon according to claim 3, is characterized in that: described pointed mouth tube (8) is a transparent glass tube, is provided with scale marking line on it. 5. a kind of chemical experiment according to claim 1 uses filter drip spoon, it is characterized in that: the opening of described spoon body (1) is provided with the fixed cover (9) that part opening is covered, and fixed cover (9) is provided with a cavity, and a movable cover (10) is arranged in the cavity, and the movable cover (10) cooperates with the fixed cover (9) to seal the spoon body (1). 6 . A filter dropping spoon for chemical experiments according to claim 5 , characterized in that: the movable cover ( 10 ) is provided with a shifting block ( 11 ) for moving the movable cover ( 10 ).