Preservation box assembly with double-sealing structure

Abstract

The utility model discloses a preservation box assembly with a double-sealing structure, which belongs to the technical field of preservation boxes and comprises a preservation box body and two buckle assemblies, a box cover is attached to the top of the preservation box body, one part of each buckle assembly is mounted on one side of the box cover, and the other part of each buckle assembly is mounted on one side of the preservation box body. An air exhaust mechanism is arranged at the top of the box cover, an air inlet valve is arranged at the top of the box cover, the air exhaust mechanism comprises an air exhaust barrel, one end of the air exhaust barrel is communicated with the top of the box cover, and a piston is attached to the inner wall of the air exhaust barrel; according to the fresh-keeping box, the air exhaust mechanism is arranged, the moving rod and the piston are driven by the handle to move up and down in a reciprocating mode, all residual air in the fresh-keeping box body can be exhausted out of the air outlet pipe, and therefore the situation that food in the fresh-keeping box body is polluted by the residual air in the fresh-keeping box body can be avoided; therefore, the deterioration and spoilage time of the food can be prolonged, and the fresh-keeping effect of the fresh-keeping box is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fresh-keeping boxes, in particular to a fresh-keeping box component with a double sealing structure. Background Art

[0002] A fresh-keeping box is a daily necessity used for preserving, storing, heating and cleaning food. It is usually made of resin material, has a high temperature resistance range, can be heated in a microwave oven, and can be cleaned in a dishwasher. There are many types of fresh-keeping boxes, including plastic fresh-keeping boxes, tempered glass fresh-keeping boxes, and heat-resistant glass fresh-keeping boxes.

[0003] When traditional fresh-keeping boxes seal food, they often leave a certain amount of air inside the box. This residual air not only promotes the oxidation reaction of the food and accelerates its spoilage process, but also the bacteria and microorganisms in the air may multiply in the closed environment. This multiplication increases the risk of food contamination, which may cause the food to spoil and rot faster. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that traditional fresh-keeping boxes in the prior art often leave a certain amount of air in the box when sealing food, and the residual air may cause the food to deteriorate and rot faster.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A fresh-keeping box assembly with a double-sealed structure includes a fresh-keeping box body and two snap assemblies. A box lid is attached to the top of the fresh-keeping box body. One part of the snap assemblies is mounted on one side of the box lid, and the other part of the snap assemblies is mounted on one side of the box body. An air extraction mechanism is provided on the top of the box lid, and an air inlet valve is provided on the top of the box lid.

[0007] The air pumping mechanism includes an air pump, one end of the air pump is connected to the top of the box cover, the inner wall of the air pump is fitted with a piston, the top of the piston is connected to a moving rod, the other end of the moving rod extends to the outside of the air pump and is connected to a handle, the inner wall of the air pump is connected to a fixing ring, the top of the fixing ring is provided with a placement groove, one side of the inner wall of the placement groove is connected to a first spring, the other end of the first spring is connected to a first sealing plate, the bottom of the first sealing plate is fitted with the top of the fixing ring, the outer wall of the air pump is connected to an air outlet pipe, the air outlet pipe is outer-circuited with a second spring, the outer wall of the air outlet pipe is connected to a mounting sleeve, one side of the mounting sleeve is connected to the outer wall of the air pump, one end of the air outlet pipe is fitted with a second sealing plate, and both ends of the second spring are respectively connected to one side of the second sealing plate and one side of the mounting sleeve.

[0008] As a further description of the above technical solution:

[0009] The bottom of the handle fits with the top of the vacuum cylinder, the bottom of the first sealing plate is connected to a first sealing plug, and the outer wall of the first sealing plug fits with the inner wall of the fixing ring.

[0010] As a further description of the above technical solution:

[0011] A second sealing plug is connected to one side of the second sealing plate, the outer wall of the second sealing plug is in contact with the inner wall of the air outlet pipe, the inner wall of the air pump is connected to a limiting ring, and the top of the limiting ring is in contact with the bottom of the piston.

[0012] As a further description of the above technical solution:

[0013] The top of the box lid is provided with an extrusion mechanism, which includes two first sealing grooves and two second sealing grooves. The first sealing groove is opened at the top of the fresh-keeping box body, and the second sealing groove is opened at the bottom of the box lid. A sealing gasket is fitted on the inner wall of the first sealing groove, one side of the sealing gasket extends into the second sealing groove, and the outer wall of the sealing gasket is fitted with the inner wall of the second sealing groove.

[0014] As a further description of the above technical solution:

[0015] Two sliding grooves are provided on the inner wall of the second sealing groove, and a connecting rod is slidably connected to the inner wall of the sliding groove. An extrusion plate is fitted on the top of the sealing gasket, and the outer wall of the extrusion plate is fitted on the inner wall of the second sealing groove. One end of the two connecting rods close to the outside of the box cover is connected to the top of the extrusion plate close to the outside of the box cover, and one end of the two connecting rods close to the inside of the box cover is connected to the top of the extrusion plate close to the inside of the box cover. The other end of the connecting rod extends outside the sliding groove, and one end of two adjacent connecting rods is connected to the same connecting block.

[0016] As a further description of the above technical solution:

[0017] A threaded groove is provided in one of the connecting blocks, and a threaded rod is threadedly connected to the inner wall of the threaded groove. One end of the threaded rod is rotatably connected to the top of the box cover, and the other end of the threaded rod extends out of the threaded groove and is connected to a knob.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] When the air in the air pump is full, the handle is pressed downward to drive the piston downward to squeeze the air in the air pump. At this time, the first spring will drive the first sealing plate and the first sealing plug to separate the top of the fixing ring through the elastic force of the first spring, so that the air in the air pump can enter the air outlet pipe and drive the second sealing plug and the second sealing plate to separate from the air outlet pipe, so that the air in the air pump can be discharged. Repeat the above steps to completely discharge the air remaining in the fresh-keeping box main body, thereby preventing the air remaining in the fresh-keeping box main body from contaminating the food in the fresh-keeping box main body, thereby prolonging the time for food to spoil and corrupt, and improving the fresh-keeping effect of the fresh-keeping box.

[0020] 2. In the present invention, an extrusion mechanism is provided, and the threaded rod is driven to rotate by turning the knob, thereby driving one of the connecting blocks and the two connecting rods connected thereto to move downward, and then driving the two extrusion plates to extrude the two sealing gaskets, so that the two sealing gaskets can fit more closely with the first sealing groove and the second sealing groove, thereby improving the sealing effect of the sealing gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of the fresh-keeping box of the utility model;

[0023] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of part A;

[0024] Figure 4 For this utility model Figure 2 The enlarged structural diagram of part B in the middle;

[0025] Figure 5 For this utility model Figure 2 The enlarged structural diagram of part C in the middle;

[0026] Figure 6 This is a schematic diagram of the structure of the vacuum pump of the utility model;

[0027] Figure 7 For this utility model Figure 6 The enlarged structural diagram of part D is shown in the figure.

[0028] Legend: 1. Fresh-keeping box body; 2. Box cover; 3. Exhaust mechanism; 301. Handle; 302. Exhaust cylinder; 303. Piston; 304. Limiting ring; 305. Fixing ring; 306. Placement groove; 307. First spring; 308. First sealing plug; 309. First sealing plate; 310. Exhaust pipe; 311. Second spring; 312. Second sealing plug; 313. Second sealing plate; 314. Moving rod; 315. Mounting sleeve; 4. Inlet valve; 5. Extrusion mechanism; 501. Knob; 502. Connecting block; 503. Connecting rod; 504. Slide groove; 505. Threaded rod; 506. Threaded groove; 507. Extrusion plate; 508. Sealing gasket; 509. First sealing groove; 510. Second sealing groove; 6. Buckle assembly. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 The utility model provides a technical solution: a fresh-keeping box assembly with a double sealing structure, including a fresh-keeping box body 1 and two buckle assemblies 6. A box cover 2 is attached to the top of the fresh-keeping box body 1. A part of the buckle assembly 6 is installed on one side of the box cover 2, and the other part of the buckle assembly 6 is installed on the side of the fresh-keeping box body 1. An air extraction mechanism 3 is provided on the top of the box cover 2, and an air inlet valve 4 is provided on the top of the box cover 2.

[0031] The air extraction mechanism 3 includes an air extraction cylinder 302, one end of the air extraction cylinder 302 is connected to the top of the box cover 2, a piston 303 is attached to the inner wall of the air extraction cylinder 302, a moving rod 314 is connected to the top of the piston 303, the other end of the moving rod 314 extends to the outside of the air extraction cylinder 302 and is connected to the handle 301, the inner wall of the air extraction cylinder 302 is connected to a fixing ring 305, a placement groove 306 is provided on the top of the fixing ring 305, a first spring 307 is connected to one side of the inner wall of the placement groove 306, the other end of the first spring 307 is connected to a first sealing plate 309, the bottom of the first sealing plate 309 is attached to the top of the fixing ring 305, the outer wall of the air extraction cylinder 302 is connected to an air outlet pipe 310, and the air outlet pipe 310 is covered with a second spring 311. The outer wall of the tube 310 is connected to a mounting sleeve 315, one side of the mounting sleeve 315 is connected to the outer wall of the air pump 302, one end of the air outlet pipe 310 is fitted with a second sealing plate 313, the two ends of the second spring 311 are respectively connected to one side of the second sealing plate 313 and one side of the mounting sleeve 315, the bottom of the handle 301 is fitted with the top of the air pump 302, the bottom of the first sealing plate 309 is connected to the first sealing plug 308, the outer wall of the first sealing plug 308 is fitted with the inner wall of the fixing ring 305, the second sealing plate 313 is connected to one side of the second sealing plug 312, the outer wall of the second sealing plug 312 is fitted with the inner wall of the air outlet pipe 310, the inner wall of the air pump 302 is connected to the limiting ring 304, and the top of the limiting ring 304 is fitted with the bottom of the piston 303.

[0032] The specific implementation method is as follows: the box cover 2 can be tightly installed on the fresh-keeping box body 1 through the buckle assembly 6, and the gap between the fresh-keeping box body 1 and the box cover 2 can be sealed through two sealing gaskets 508. At this time, the air inlet valve 4 is in a closed state, and then the moving rod 314 is driven to move upward by pulling the handle 301 upward, and the moving rod 314 moves upward to drive the piston 303 to move upward. The upward movement of the piston 303 can form a negative pressure in the air pump 302, so that the air in the fresh-keeping box body 1 can move upward and squeeze the first sealing plug 308, so that the first sealing plug 308 and the first sealing plug 308 are pressed together. The plate 309 moves upward, thereby separating the first sealing plug 308 and the first sealing plate 309 from the fixing ring 305, thereby allowing the air in the fresh-keeping box body 1 to enter the air pump 302. During the upward movement of the first sealing plate 309, the first spring 307 is stretched, causing the first spring 307 to generate elastic force. When the air in the air pump 302 is full, the handle 301 is pressed downward, so that the moving rod 314 drives the piston 303 to move downward, thereby squeezing the air in the air pump 302. At this time, the first spring 307 drives the first sealing plate 309 and the fixing ring 305 to separate through the elastic force. The top of the fixing ring 305 fits, and the first sealing plug 308 enters the inner wall of the fixing ring 305, thereby blocking the outlet of the fixing ring 305, and then allowing the air in the air pump 302 to enter the air outlet pipe 310, and squeezing the second sealing plug 312, so that the second sealing plug 312 and the second sealing plate 313 are separated from the air outlet pipe 310, so that the air in the air pump 302 can be discharged. Repeat the above steps to completely discharge the remaining air in the fresh-keeping box body 1, thereby preventing the remaining air in the fresh-keeping box body 1 from contaminating the food in the fresh-keeping box body 1 When the second sealing plate 313 moves, it can drive the second spring 311 to stretch, so that the second spring 311 generates elastic force, so that when the air is exhausted, it can drive the second sealing plate 313 and the second sealing plug 312 to block the air outlet pipe 310, preventing outside air from entering the vacuum cylinder 302. When the box lid 2 needs to be opened, the air inlet valve 4 is opened to allow outside air to enter the box body 1, so that the pressure inside the box body 1 can be made the same as the outside pressure, making it easier to open the box lid 2.

[0033] The top of the box cover 2 is provided with an extrusion mechanism 5, which includes two first sealing grooves 509 and two second sealing grooves 510. The first sealing groove 509 is opened at the top of the fresh-keeping box body 1, and the second sealing groove 510 is opened at the bottom of the box cover 2. The inner wall of the first sealing groove 509 is fitted with a sealing gasket 508, and one side of the sealing gasket 508 extends into the second sealing groove 510. The outer wall of the sealing gasket 508 is fitted with the inner wall of the second sealing groove 510. The inner wall of the second sealing groove 510 is provided with two slide grooves 504. The inner wall of the slide groove 504 is slidably connected to the connecting rod 503. The top of the sealing gasket 508 is fitted with an extrusion plate 507. The outer wall of the extrusion plate 507 is fitted with the inner wall of the second sealing groove 510. The wall is fitted, and one end of the two connecting rods 503 near the outside of the box cover 2 is connected to the top of the extrusion plate 507 near the outside of the box cover 2, and one end of the two connecting rods 503 near the inside of the box cover 2 is connected to the top of the extrusion plate 507 near the inside of the box cover 2, the other end of the connecting rod 503 extends to the outside of the slide groove 504, and one end of the two adjacent connecting rods 503 is connected to the same connecting block 502, and one of the connecting blocks 502 is provided with a threaded groove 506, and the inner wall of the threaded groove 506 is threadedly connected to a threaded rod 505, one end of the threaded rod 505 is rotatably connected to the top of the box cover 2, and the other end of the threaded rod 505 extends to the outside of the threaded groove 506 and is connected to the knob 501.

[0034] The specific implementation method is as follows: the threaded rod 505 is driven to rotate by rotating the knob 501, and the threaded rod 505 drives one of the connecting blocks 502 to move downward by rotating in the threaded groove 506, and drives the two connecting rods 503 connected thereto to move downward, thereby driving the two extrusion plates 507 to move downward, and the downward movement of the two extrusion plates 507 can squeeze the two sealing gaskets 508, so that the two sealing gaskets 508 can fit more closely with the first sealing groove 509 and the second sealing groove 510, thereby improving the sealing effect of the sealing gasket 508, and when the two extrusion plates 507 move downward, they can also drive the other two connecting rods 503 to move in the slide groove 504, thereby limiting the extrusion plate 507 and preventing the extrusion plate 507 from deflecting when moving, so that the extrusion plate 507 can be more stable when moving.

[0035] When the air in the air pump 302 is full, the handle 301 is pressed downward, so that the moving rod 314 and the piston 303 move upward. The upward movement of the piston 303 can form a negative pressure in the air pump 302, so that the air in the fresh-keeping box body 1 can move upward and squeeze the first sealing plug 308, so that the first sealing plug 308 and the first sealing plate 309 are separated from the fixing ring 305, so that the air in the fresh-keeping box body 1 can enter the air pump 302. During the upward movement of the first sealing plate 309, the first spring 307 is stretched to generate elastic force. When the air in the air pump 302 is full, the handle 301 is pressed downward, so that the moving rod 314 drives the piston 303 to squeeze the air in the air pump 302. At this time, the first spring 307 drives the first sealing plate 309 and the first sealing plate 309 through the elastic force. The plug 308 moves downward, thereby blocking the outlet of the fixing ring 305, and allowing the air in the vacuum cylinder 302 to flow to the air outlet pipe 310, and by squeezing the second sealing plug 312, the second sealing plug 312 and the second sealing plate 313 are separated from the air outlet pipe 310, so that the air in the vacuum cylinder 302 can be discharged. Repeat the above steps to completely discharge the remaining air in the fresh-keeping box body 1, and by turning the knob 501 to drive the threaded rod 505 to rotate, one of the connecting blocks 502 can be driven to move downward, and then the two connecting rods 503 connected thereto can be driven to move downward, so that the two squeezing plates 507 squeeze the two sealing gaskets 508, so that the two sealing gaskets 508 can fit more tightly with the first sealing groove 509 and the second sealing groove 510.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fresh-keeping box assembly with a double-sealing structure, comprising a fresh-keeping box body (1) and two buckle assemblies (6), characterized in that: The top of the fresh-keeping box body (1) is fitted with a box cover (2); a portion of the snap assembly (6) is mounted on one side of the box cover (2), and another portion of the snap assembly (6) is mounted on one side of the fresh-keeping box body (1); an air extraction mechanism (3) is provided on the top of the box cover (2); and an air inlet valve (4) is provided on the top of the box cover (2); The air extraction mechanism (3) includes an air extraction cylinder (302), one end of the air extraction cylinder (302) is connected to the top of the box cover (2), a piston (303) is attached to the inner wall of the air extraction cylinder (302), the top of the piston (303) is connected to a moving rod (314), the other end of the moving rod (314) extends to the outside of the air extraction cylinder (302) and is connected to a handle (301), the inner wall of the air extraction cylinder (302) is connected to a fixing ring (305), the top of the fixing ring (305) is provided with a placement groove (306), one side of the inner wall of the placement groove (306) is connected to a first spring (307), the first spring (307) ) The other end is connected to a first sealing plate (309), the bottom of the first sealing plate (309) is fitted with the top of the fixing ring (305), the outer wall of the air pump (302) is connected to an air outlet pipe (310), the outer sleeve of the air outlet pipe (310) is provided with a second spring (311), the outer wall of the air outlet pipe (310) is connected to a mounting sleeve (315), one side of the mounting sleeve (315) is connected to the outer wall of the air pump (302), one end of the air outlet pipe (310) is fitted with a second sealing plate (313), and the two ends of the second spring (311) are respectively connected to one side of the second sealing plate (313) and one side of the mounting sleeve (315).

2. The fresh-keeping box assembly with a double sealing structure according to claim 1, characterized in that: The bottom of the handle (301) is fitted with the top of the vacuum cylinder (302), the bottom of the first sealing plate (309) is connected to a first sealing plug (308), and the outer wall of the first sealing plug (308) is fitted with the inner wall of the fixing ring (305).

3. The fresh-keeping box assembly with a double sealing structure according to claim 1, characterized in that: A second sealing plug (312) is connected to one side of the second sealing plate (313), the outer wall of the second sealing plug (312) is in contact with the inner wall of the air outlet pipe (310), the inner wall of the air pump (302) is connected to a limiting ring (304), and the top of the limiting ring (304) is in contact with the bottom of the piston (303).

4. The fresh-keeping box assembly with a double sealing structure according to claim 1, characterized in that: The top of the box cover (2) is provided with an extrusion mechanism (5), and the extrusion mechanism (5) includes two first sealing grooves (509) and two second sealing grooves (510), wherein the first sealing grooves (509) are provided at the top of the fresh-keeping box body (1), and the second sealing grooves (510) are provided at the bottom of the box cover (2), and a sealing gasket (508) is fitted on the inner wall of the first sealing groove (509), one side of the sealing gasket (508) extends into the second sealing groove (510), and the outer wall of the sealing gasket (508) is fitted on the inner wall of the second sealing groove (510).

5. The fresh-keeping box assembly with a double sealing structure according to claim 4, characterized in that: The inner wall of the second sealing groove (510) is provided with two sliding grooves (504), the inner wall of the sliding groove (504) is slidably connected with a connecting rod (503), the top of the sealing gasket (508) is fitted with an extrusion plate (507), the outer wall of the extrusion plate (507) is fitted with the inner wall of the second sealing groove (510), and one end of the two connecting rods (503) close to the outside of the box cover (2) is connected to the top of the extrusion plate (507) close to the outside of the box cover (2), and one end of the two connecting rods (503) close to the inside of the box cover (2) is connected to the top of the extrusion plate (507) close to the inside of the box cover (2), the other end of the connecting rod (503) extends to the outside of the sliding groove (504), and one end of the two adjacent connecting rods (503) is connected to the same connecting block (502).

6. The fresh-keeping box assembly with a double sealing structure according to claim 5, characterized in that: A threaded groove (506) is formed in one of the connecting blocks (502), and a threaded rod (505) is threadedly connected to the inner wall of the threaded groove (506). One end of the threaded rod (505) is rotatably connected to the top of the box cover (2), and the other end of the threaded rod (505) extends outside the threaded groove (506) and is connected to a knob (501).

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