A vacuum preservation device for tea

Abstract

This utility model relates to the field of tea preservation technology, providing a vacuum tea preservation device, including a canister. A connecting structure is provided on the outer side of the canister, including a hopper fixed to the bottom of the canister, a discharge pipe fixed to the bottom of the hopper, a first solenoid valve installed on the outer side of the discharge pipe, and a sealing structure fixed to the top of the canister. This utility model, through the connecting structure, forms a smooth tea discharge channel via the hopper and discharge pipe. Combined with the electrically controlled opening and closing function of the first solenoid valve, the amount of tea discharged can be precisely controlled. Furthermore, the lower cover is threadedly connected to the canister via a first internal thread and a first external thread, and the upper cover is threadedly connected to the canister via a second internal thread and a second external thread. This not only facilitates disassembly and assembly but also allows for tea retrieval without damaging the top seal, reducing the loss of the vacuum environment.

Description

Technical Field

[0001] This utility model relates to the field of tea preservation technology, and in particular to a vacuum tea preservation device. Background Technology

[0002] Tea preservation refers to the use of physical, chemical, or biological methods to slow down the deterioration of tea quality during storage and to preserve its original color, aroma, taste, shape, and nutritional components to the greatest extent possible. A tea vacuum preservation device is a specialized piece of equipment that uses vacuuming, sealing, and light-proofing techniques to actively create a low-oxygen, dry, and light-proof storage environment to slow down the oxidation of tea and thus preserve its freshness, aroma, and nutritional components to the greatest extent possible.

[0003] To address this, patent CN202704224U discloses a vacuum-sealed tea canister, comprising a canister body and a vacuum extraction device. A clamping lid is fitted onto the opening of the canister body, and a groove is provided on the upper part of the clamping lid. A vent hole is opened on the clamping lid at the groove, and a vacuum nozzle is inserted into the vent hole. A top cover is screwed onto the top of the clamping lid. This utility model has a simple structure and reasonable design. The operator uses the vacuum extraction device to create a vacuum in the canister through the vacuum nozzle, ensuring the vacuum level inside the canister. Operation is simple and convenient, meeting user needs.

[0004] When using the aforementioned vacuum-sealed tea canister, it may be necessary to completely unscrew the top and lids when taking out the tea. This will completely destroy the vacuum environment inside the canister, requiring a re-vacuuming process after each tea removal. This is not only cumbersome but also increases energy consumption and time costs. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum tea preservation device to solve the problem that existing vacuum tea preservation canisters are inconvenient for removing tea leaves.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a vacuum preservation device for tea, including a tank;

[0007] The outer side of the tank is provided with a connecting structure, which includes a hopper fixed to the bottom of the tank, a discharge pipe fixed to the bottom of the hopper, a first solenoid valve installed on the outer side of the discharge pipe, a lower cover installed on the outer side of the bottom of the tank, an upper cover installed on the outer side of the top of the tank, a first internal thread provided inside the lower cover, a first external thread provided on the outer side of the bottom of the tank, a second internal thread provided inside the upper cover, a second external thread provided on the outer side of the top of the tank, and an observation window fixed on one side of the lower cover.

[0008] The top of the tank is fixed with a sealing structure.

[0009] Preferably, the input end of the first solenoid valve is electrically connected to the output end of the external control system, and the top end of the lower cover abuts against the bottom end of the upper cover.

[0010] With the above structure, during use, the first solenoid valve is electrically connected to the external control system, and its opening and closing can be precisely controlled by the electrical control signal. Also, the top of the lower cover and the bottom of the upper cover abut against each other, which will exert a squeezing effect on the second sealing ring at the top of the lower cover, thereby filling the gap between the lower cover and the upper cover and further enhancing the overall sealing performance of the device.

[0011] Preferably, the first internal thread matches the first external thread, the lower cover and the tank body are connected by the first internal thread and the first external thread, the second internal thread matches the second external thread, and the upper cover and the tank body are connected by the second internal thread and the second external thread.

[0012] With the above structure, the threaded connection allows for detachable assembly or disassembly of the tank by rotating the lower and upper covers. This effectively prevents the lower and upper covers from loosening due to vibration, external impact, or other factors during use, ensuring the overall stability of the device and preventing seal failure.

[0013] Preferably, the sealing structure includes a first sealing ring fixed to the top of the tank body, a sealing groove provided at the top of the inner side of the upper cover outside the first sealing ring, a sealing plug fixed at the bottom of the inner side of the lower cover, a vacuum pump fixed at the middle position of the top of the upper cover, an air extraction pipe fixed at the output end of the vacuum pump, a second solenoid valve installed on the outer side of the air extraction pipe inside the upper cover, and a second sealing ring fixed at the top of the lower cover.

[0014] Preferably, the first sealing ring is fitted into the sealing groove, the bottom end of the sealing plug is fixedly connected to the middle position of the bottom end inside the lower cover, and the outer side of the sealing plug is fitted into the inner side of the discharge pipe.

[0015] With the above structure, when the top cover is tightened during use, the sealing ring is squeezed and embedded in the sealing groove to form an elastic sealing layer, filling the tiny gap between the top of the can and the top cover, preventing external air from entering the can from the top connection, ensuring the sealing of the top after vacuuming. When the bottom cover is tightened, the sealing plug is fully inserted into the discharge pipe, which can block the gap between the discharge pipe and the bottom cover after the tea is filled, preventing air from seeping into the can from the bottom discharge channel.

[0016] Preferably, the input end of the second solenoid valve is electrically connected to the output end of the external control system, and the lower cover and the upper cover are sealed together by a second sealing ring.

[0017] With the above structure, the second solenoid valve is electrically connected to the external control system during use, and can be automatically opened or closed according to the preset program or the real-time monitored vacuum signal.

[0018] The advantages of the vacuum preservation device for tea provided by this utility model are as follows:

[0019] With a connecting structure, a smooth tea discharge channel is formed between the hopper and the discharge pipe. Combined with the electric control opening and closing function of the first solenoid valve, the amount of tea discharged can be precisely controlled. The lower cover and the tank body are connected by the first internal thread and the first external thread, and the upper cover and the tank body are connected by the second internal thread and the second external thread. This not only facilitates disassembly and assembly, but also allows the first solenoid valve to control the opening and closing of the discharge pipe when taking tea. Tea can be taken without damaging the top seal, reducing the loss of the vacuum environment.

[0020] By incorporating a sealing structure, the first sealing ring at the top of the can engages with the sealing groove inside the upper cover, forming the first sealing barrier at the top and effectively preventing external air from entering the can. The sealing plug inside the lower cover engages with the inside of the discharge pipe, preventing air leakage at the discharge pipe after the tea is filled and ensuring the sealing of the bottom of the can. The second sealing ring at the top of the lower cover abuts against the bottom of the upper cover, further enhancing the overall sealing performance based on the threaded connection. By squeezing the second sealing ring, any minor gaps that may exist in the threaded connection are filled, thereby further ensuring the sealing effect. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0023] Figure 3 This is a three-dimensional exploded structural diagram of the present invention;

[0024] Figure 4 This is a three-dimensional structural diagram of the lower cover of this utility model;

[0025] Figure 5 This is a three-dimensional cross-sectional structural diagram of the present invention.

[0026] The reference numerals in the figure are as follows: 1. Tank body; 2. Connecting structure; 201. Hopper; 202. Discharge pipe; 203. First solenoid valve; 204. Lower cover; 205. Upper cover; 206. First internal thread; 207. First external thread; 208. Second internal thread; 209. Second external thread; 210. Observation window; 3. Sealing structure; 301. First sealing ring; 302. Sealing groove; 303. Sealing plug; 304. Vacuum pump; 305. Air extraction pipe; 306. Second solenoid valve; 307. Second sealing ring. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 The present invention provides a vacuum preservation device for tea, comprising a tank 1.

[0029] Reference Figures 1-5 As shown, a connecting structure 2 is provided on the outer side of the tank body 1. The connecting structure 2 includes a hopper 201 fixed to the bottom end of the tank body 1, a discharge pipe 202 fixed to the bottom end of the hopper 201, a first solenoid valve 203 installed on the outer side of the discharge pipe 202, a lower cover 204 installed on the outer side of the bottom of the tank body 1, and an upper cover 205 installed on the outer side of the top of the tank body 1. The lower cover 204 has a first internal thread 206 inside, the bottom of the tank body 1 has a first external thread 207 on the outer side, the upper cover 205 has a second internal thread 208 inside, and the top of the tank body 1 has a second external thread 207 on the outer side. An observation window 210 is fixed on one side of the lower cover 204 with an external thread 209. The input end of the first solenoid valve 203 is electrically connected to the output end of the external control system. The top end of the lower cover 204 abuts against the bottom end of the upper cover 205. The first internal thread 206 matches the first external thread 207. The lower cover 204 and the tank 1 are connected by the first internal thread 206 and the first external thread 207. The second internal thread 208 matches the second external thread 209. The upper cover 205 and the tank 1 are connected by the second internal thread 208 and the second external thread 209.

[0030] The bottom of the hopper 201 is fixedly connected to the discharge pipe 202 to form a tea discharge channel. A first solenoid valve 203 is installed on the outside of the discharge pipe 202, which can control the opening and closing of the channel through an electrical control signal. By rotating the lower cover 204, the tank body 1 and the lower cover 204 form a threaded connection to achieve a bottom seal. The top of the tank body 1 is fixed by rotating the upper cover 205. The top of the lower cover 204 abuts against the bottom of the upper cover 205, thereby compressing the second sealing ring 307 and enhancing the overall sealing performance. An observation window 210 made of transparent material is fixed on one side of the lower cover 204. When it is necessary to remove the tea, the user can loosen the lower cover 204. At this time, the sealing connection between the lower cover 204 and the upper cover 205 is temporarily released, allowing the sealing plug 303 to move out of the discharge pipe 202. However, the first sealing ring 301 at the top of the tank body is still fitted with the upper cover, and the vacuum environment at the top is not affected. The first solenoid valve 203 controls the opening of the discharge pipe 202, allowing the tea leaves to be observed through the observation window 210. Then, the first solenoid valve 203 controls the closing of the discharge pipe 202, completely removing the lower cover 204 from the outside of the tank body 1, thus facilitating the removal of the tea leaves. This allows for tea removal without damaging the top seal, reducing the loss of the vacuum environment.

[0031] Reference Figures 2-5 As shown, a sealing structure 3 is fixed to the top of the tank body 1. The sealing structure 3 includes a first sealing ring 301 fixed to the top of the tank body 1. A sealing groove 302 is provided at the top of the inner part of the upper cover 205 outside the first sealing ring 301. A sealing plug 303 is fixed at the bottom of the inner part of the lower cover 204. A vacuum pump 304 is fixed at the middle position of the top of the upper cover 205. An air extraction pipe 305 is fixed at the output end of the vacuum pump 304. A second solenoid valve 306 is installed on the outside of the air extraction pipe 305 inside the upper cover 205. A second sealing ring 307 is fixed to the top of the lower cover 204. The first sealing ring 301 is fitted with the sealing groove 302. The bottom end of the sealing plug 303 is fixedly connected to the middle position of the bottom of the inner part of the lower cover 204. The outside of the sealing plug 303 is fitted with the inside of the discharge pipe 202. The input end of the second solenoid valve 306 is electrically connected to the output end of the external control system. The lower cover 204 and the upper cover 205 are sealed together by the second sealing ring 307.

[0032] The first sealing ring 301, fixed at the top of the can 1, fits into the sealing groove 302 to form a top sealing layer. By activating the vacuum pump 304, air is drawn from the can 1 through the suction pipe 305, gradually creating a vacuum environment inside the can 1. A second solenoid valve 306 is installed on the outside of the suction pipe 305, which is also electrically connected to the external control system. It can be opened or closed according to control commands to control the start and stop of suction, ensuring that the can 1 reaches the required vacuum level. The sealing plug 303 is fixed in the middle of the bottom of the lower cover 204, and its outer side fits into the inner side of the discharge pipe 202 to prevent air leakage at the discharge pipe after the tea is filled. The second sealing ring 307, fixed at the top of the lower cover 204, forms a sealing connection with the upper cover 205, thereby further enhancing the overall sealing performance. Through the action of each sealing component, the vacuum environment inside the can 1 is maintained, thus achieving the preservation of the tea.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vacuum preservation device for tea, comprising a container (1); Its features are: A connecting structure (2) is provided on the outside of the tank body (1). The connecting structure (2) includes a hopper (201) fixed to the bottom end of the tank body (1). A discharge pipe (202) is fixed to the bottom end of the hopper (201). A first solenoid valve (203) is installed on the outside of the discharge pipe (202). A lower cover (204) is installed on the outside of the bottom of the tank body (1). An upper cover (205) is installed on the outside of the top of the tank body (1). A first internal thread (206) is provided inside the lower cover (204). A first external thread (207) is provided on the outside of the bottom of the tank body (1). A second internal thread (208) is provided inside the upper cover (205). A second external thread (209) is provided on the outside of the top of the tank body (1). An observation window (210) is fixed on one side of the lower cover (204). The top of the tank (1) is fixed with a sealing structure (3).

2. A vacuum tea preservation device according to claim 1, characterized in that: The input end of the first solenoid valve (203) is electrically connected to the output end of the external control system, and the top end of the lower cover (204) abuts against the bottom end of the upper cover (205).

3. A vacuum tea preserving device as claimed in claim 1, wherein: The first internal thread (206) matches the first external thread (207), the lower cover (204) and the tank body (1) are connected by the first internal thread (206) and the first external thread (207), the second internal thread (208) matches the second external thread (209), and the upper cover (205) and the tank body (1) are connected by the second internal thread (208) and the second external thread (209).

4. The vacuum tea preservation device according to claim 1, characterized in that: The sealing structure (3) includes a first sealing ring (301) fixed to the top of the tank (1), a sealing groove (302) is provided at the top of the upper cover (205) outside the first sealing ring (301), a sealing plug (303) is fixed at the bottom of the lower cover (204), a vacuum pump (304) is fixed at the middle position of the top of the upper cover (205), a suction pipe (305) is fixed at the output end of the vacuum pump (304), a second solenoid valve (306) is installed on the outside of the suction pipe (305) inside the upper cover (205), and a second sealing ring (307) is fixed at the top of the lower cover (204).

5. A vacuum tea preserver according to claim 4, wherein: The first sealing ring (301) is fitted into the sealing groove (302), the bottom end of the sealing plug (303) is fixedly connected to the middle position of the bottom end inside the lower cover (204), and the outer side of the sealing plug (303) is fitted into the inner side of the discharge pipe (202).

6. A vacuum tea preserving device as claimed in claim 4, wherein: The input end of the second solenoid valve (306) is electrically connected to the output end of the external control system, and the lower cover (204) and the upper cover (205) are sealed together by the second sealing ring (307).

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