Volatilization-preventing liquid nitrogen tank for removing spots

Abstract

The anti-volatilization liquid nitrogen tank comprises a tank body and an electromagnet, a medicine taking opening is formed in one side of the top of the tank body, a baffle made of metal is arranged at the medicine taking opening, and the baffle can horizontally slide to open or close the medicine taking opening; the electromagnet is installed at the position, corresponding to one side of the medicine taking opening, of the top of the tank body, and the electromagnet attracts the baffle through magnetic force to slide to close the medicine taking opening. A battery is mounted on the tank body, is connected with the electromagnet through a power supply circuit and supplies power to the electromagnet; a button is installed on the side wall of the tank body, the button is laterally pressed to cut off the power supply circuit so that the electromagnet loses magnetism, and then the baffle slides reversely to open the medicine taking opening. The liquid nitrogen taking device has the advantages that the medicine taking opening is closed at ordinary times, the medicine taking opening can be opened by laterally pressing the button when the liquid nitrogen taking device is used, the cotton swab does not make contact with the tank body or any other component in the whole process, and disinfection work on the tank body and pollution of the liquid nitrogen are avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a liquid nitrogen tank for removing blemishes that prevents volatilization. Background Technology

[0002] Chinese utility model patent application number 202020485927.X discloses a liquid nitrogen container for dermatology, which automatically closes its opening after a cotton swab or cotton ball is soaked in liquid nitrogen. However, this patent requires holding the cotton swab and pressing down on one side of the lid to rotate it when soaking in liquid nitrogen. Because the cotton ball end of the swab touches the lid, the lid needs to be sterilized before each use, which is time-consuming and laborious. Even if the lid is sterilized before use, it is easily contaminated during use due to prolonged exposure to the atmosphere, eventually contaminating the cotton ball end of the swab. This contamination occurs when the cotton ball end comes into contact with the liquid nitrogen. Utility Model Content

[0003] In summary, in order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a liquid nitrogen tank for spot removal that prevents volatilization.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A liquid nitrogen tank for spot removal with anti-volatile properties includes a tank body and an electromagnet. A dispensing port is provided on one side of the top of the tank body, and a metal baffle is provided at the dispensing port. The baffle can be horizontally slidable to open or close the dispensing port. The electromagnet is installed on the top of the tank body at a position corresponding to the dispensing port, and the electromagnet closes the dispensing port by magnetically attracting the baffle. A battery is installed on the tank body, and the battery is connected to the electromagnet via a power supply line. A button is installed on the side wall of the tank body, and pressing the button can cut off the power supply line, causing the electromagnet to lose its magnetism, thereby causing the baffle to slide in the opposite direction to open the dispensing port.

[0005] The beneficial effects of this utility model are: the dispensing port is normally closed, and when in use, pressing the side button can open the dispensing port to apply liquid nitrogen with a cotton swab. During the entire process, the cotton swab does not come into contact with the can or any other parts, thus avoiding the disinfection of the can and the contamination of the liquid nitrogen.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the top of the can body is provided with a first sliding groove on the side of the medicine dispensing port away from the electromagnet, allowing the baffle to slide horizontally; a first spring is provided inside the end of the first sliding groove away from the medicine dispensing port, one end of the first spring is connected to the inner wall of the end of the first sliding groove away from the medicine dispensing port, and the other end of the first spring is connected to the end of the baffle away from the electromagnet.

[0008] The beneficial effect of adopting the above-mentioned further solution is that it enables the baffle to slide horizontally, so as to open or close the medicine dispensing port.

[0009] Furthermore, a second slide groove is provided on the side wall of the can corresponding to the position of the button, allowing the button to slide laterally. The opening of the second slide groove faces the outside of the can, and a plurality of second springs are provided between the inner wall of the second slide groove relative to the opening and the button. The two ends of the second springs are respectively connected to the inner wall of the second slide groove relative to the opening and the corresponding position of the button.

[0010] The power supply line passes through the button, and the power supply line has a break at the position corresponding to the button; the button is made of non-metallic material, and the break has two conductive protrusions; the button has conductive contacts that correspond one-to-one with the protrusions, the two contacts are connected by a wire, and the second spring presses against the button to make the protrusions contact the corresponding contacts; the button has a horizontal groove at the position corresponding to the protrusions, the groove is horizontally set so that when the button is pressed, the protrusions slide in the groove and disengage from the corresponding contacts.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the power supply line can be disconnected or connected by the button to make the electromagnet lose or become magnetic, thereby causing the baffle to slide open or close the medicine dispensing port.

[0012] Furthermore, there are three second springs, which are evenly arranged between the inner wall of the opposite opening of the second slide and the button. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the medicine dispensing port of this utility model when it is closed;

[0014] Figure 2 for Figure 1 Enlarged image of A

[0015] Figure 3 This is a schematic diagram of the structure of the medicine dispensing port of this utility model when it is opened;

[0016] Figure 4 for Figure 2 Enlarged view of B.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Can body, 2. Electromagnet, 3. Medicine dispensing port, 4. Baffle, 5. Battery, 6. Power supply line, 7. Button, 8. First slide, 9. First spring, 10. Second slide, 11. Second spring, 12. Protrusion, 13. Contact block, 14. Groove, 15. Wire. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] like Figure 1 and 3 As shown, a liquid nitrogen tank for spot removal with anti-volatile properties includes a tank body 1 and an electromagnet 2. A dispensing port 3 is located on one side of the top of the tank body 1, and a metal baffle 4 is provided at the dispensing port 3. The baffle 4 is horizontally slidable to open or close the dispensing port 3. The electromagnet 2 is installed on the top of the tank body 1 corresponding to the dispensing port 3, and the electromagnet 2 uses magnetic force to attract the baffle 4 to slide and close the dispensing port 3. A battery 5 is installed on the tank body 1, and the battery 5 is connected to and supplies power to the electromagnet 2 via a power supply line 6. A button 7 is installed on the side wall of the tank body 1, and pressing the button 7 cuts off the power supply line 6, causing the electromagnet 2 to lose its magnetism, thereby causing the baffle 4 to slide in the opposite direction and open the dispensing port 3.

[0021] The top of the can body 1 is provided with a first sliding groove 8 on the side of the medicine dispensing port 3 away from the electromagnet 2, allowing the baffle 4 to slide horizontally. A first spring 9 is provided inside the end of the first sliding groove 8 away from the medicine dispensing port 3. One end of the first spring 9 is connected to the inner wall of the end of the first sliding groove 8 away from the medicine dispensing port 3, and the other end of the first spring 9 is connected to the end of the baffle 4 away from the electromagnet 2.

[0022] like Figure 2 and 4 As shown, a second slide groove 10 is provided on the side wall of the can body 1 at the position corresponding to the button 7, allowing the button 7 to slide laterally. The opening of the second slide groove 10 faces the outside of the can body 1, and a plurality of second springs 11 are provided between the inner wall of the second slide groove 10 relative to the opening and the button 7. The two ends of the second springs 11 are respectively connected to the inner wall of the second slide groove 10 relative to the opening and the corresponding position of the button 7. Preferably, there are three second springs 11, and the three second springs 11 are evenly arranged between the inner wall of the second slide groove 10 relative to the opening and the button 7.

[0023] The power supply line 6 passes through the button 7, and the power supply line 6 has a break at the position corresponding to the button 7. The button 7 is made of non-metallic material, and the break has two conductive protrusions 12. The button 7 has conductive contacts 13 corresponding to the protrusions 12 one by one. The two contacts 13 are connected by a wire 15, and the second spring 11 abuts against the button 7 to make the protrusions 12 contact the corresponding contacts 13. The button 7 has a horizontal groove 14 at the position corresponding to the protrusions 12. The groove 14 is horizontally arranged so that when the button 7 is pressed, the protrusions 12 slide in the groove 14 and disengage from the corresponding contacts 13.

[0024] When liquid nitrogen is not in use, under the action of the second spring 11, the protrusion 12 and the corresponding contact 13 abut against each other, the power supply line 6 is turned on, the battery 5 provides power to the electromagnet 2, and the electromagnet 2 has magnetic force. Under the action of magnetic force, the electromagnet 2 attracts the baffle 4, stretches the first spring 9 to slide along the first slide groove 8, and closes the medicine dispensing port 3. When it is necessary to use a cotton swab to apply liquid nitrogen, hold the canister 1 with one hand and pinch the cotton swab with the other hand. Press the button 7 with the thumb of the hand holding the canister 1. After the button 7 is pressed, it slides along the second slide groove 10, compressing the second spring. At the same time, the protrusion 12 disengages from the corresponding contact 13, the power supply line 6 is disconnected, the battery 5 does not provide power to the electromagnet 2, and the electromagnet 2 loses its magnetic force. After the electromagnet 2 loses its magnetic force, the first spring 9 returns to its original state and pulls the baffle 4 into the first slide groove 8. The baffle 4 no longer blocks the medicine dispensing port 3, and the medicine dispensing port 3 opens. At this time, the cotton ball end of the cotton swab can be inserted through the medicine dispensing port 3 to apply liquid nitrogen to the canister 1.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A liquid nitrogen container for spot removal that prevents volatilization, characterized in that, The device includes a canister (1) and an electromagnet (2). The canister (1) has a medicine dispensing port (3) on one side of its top. A metal baffle (4) is provided at the medicine dispensing port (3), and the baffle (4) can be horizontally slidable to open or close the medicine dispensing port (3). The electromagnet (2) is installed on the top of the canister (1) at the position corresponding to the medicine dispensing port (3), and the electromagnet (2) closes the medicine dispensing port (3) by magnetically attracting the baffle (4). A battery (5) is installed on the canister (1), and the battery (5) is connected to the electromagnet (2) through a power supply line (6). A button (7) is installed on the side wall of the canister (1), and pressing the button (7) can cut off the power supply line (6) to make the electromagnet (2) lose its magnetism, thereby causing the baffle (4) to slide in the opposite direction to open the medicine dispensing port (3).

2. The anti-volatile liquid nitrogen tank for spot removal according to claim 1, characterized in that, The top of the tank (1) is provided with a first groove (8) on the side of the medicine dispensing port (3) away from the electromagnet (2) for the baffle (4) to slide horizontally; a first spring (9) is provided inside the end of the first groove (8) away from the medicine dispensing port (3), one end of the first spring (9) is connected to the inner wall of the end of the first groove (8) away from the medicine dispensing port (3), and the other end of the first spring (9) is connected to the end of the baffle (4) away from the electromagnet (2).

3. The anti-volatile liquid nitrogen tank for spot removal according to claim 1 or 2, characterized in that, The side wall of the tank (1) is provided with a second slide groove (10) corresponding to the position of the button (7) for the button (7) to slide laterally. The opening of the second slide groove (10) faces the outside of the tank (1), and a plurality of second springs (11) are provided between the inner wall of the second slide groove (10) relative to the opening and the button (7). The two ends of the second springs (11) are respectively connected to the inner wall of the second slide groove (10) relative to the opening and the corresponding position of the button (7). The power supply line (6) passes through the button (7), and the power supply line (6) has a break at the position corresponding to the button (7); the button (7) is made of non-metallic material, and the break has two conductive protrusions (12); the button (7) has conductive contacts (13) corresponding to the protrusions (12), the two contacts (13) are connected by wires (15), and the second spring (11) abuts against the button (7) to make the protrusions (12) contact the corresponding contacts (13); the button (7) has a horizontal groove (14) at the position corresponding to the protrusions (12), the groove (14) is horizontally arranged so that when the button (7) is pressed, the protrusions (12) slide in the groove (14) and disengage from the corresponding contacts (13).

4. The anti-volatile liquid nitrogen tank for spot removal according to claim 3, characterized in that, There are three second springs (11), and the three second springs (11) are evenly arranged between the inner wall of the opposite opening of the second slide (10) and the button (7).

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