Pressing air exhaust sealing preservation box

Abstract

The utility model discloses a pressing air exhaust sealing preservation box, which relates to the technical field of preservation boxes, and comprises a preservation box body, a buckling cover is arranged above the preservation box body, the lower surface of the buckling cover is fixedly connected with a first fixing frame, the lower surface of the first fixing frame is provided with a sealing seat, and the sealing seat is fixedly connected with the first fixing frame. An air hole is formed in the middle of the sealing seat, a first sealing ring is arranged in the air hole in a sliding mode, and a round hole is formed in the portion, located over the first fixing frame, of the buckling cover. According to the fresh-keeping box, an air exhaust button is pressed, then air in a first fixing frame enters the interior of a cavity through two first air inlet holes, then the interior of the first fixing frame is in a negative pressure state, and then a first sealing ring moves upwards, so that air in the fresh-keeping box body can be sucked into the interior of the first fixing frame; and the interior of the preservation box body is in a negative pressure state, so that the buckling cover and the preservation box body can be tighter.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh-keeping boxes, in particular to a press-to-evacuate and seal fresh-keeping box. Background Art

[0002] A fresh-keeping box is a container for preserving food. It usually has good sealing properties, which can prevent air and bacteria from entering, thereby extending the shelf life of food and making it convenient for people to carry food at any time.

[0003] Among them, the announcement number CN210285329U is a sealed fresh-keeping box, including a box body and a box lid, a buckle ring is provided at the upper end of the outer surface of the box body, a sealing groove is provided on the upper edge of the box body, support blocks are provided at the four corners of the inner surface of the box body, a connecting groove is provided on the support block, a sealing plate is provided above the support block, a connecting rod is provided on the lower end surface of the sealing plate, the connecting rod is matched with the connecting groove, a lifting buckle is provided on the upper end surface of the sealing plate, a groove is provided at the bottom end of the box body, a liquid inlet pipe is provided at the center of the groove, a liquid storage cavity is provided in the box body, the liquid inlet pipe is connected with the liquid storage cavity, a sealing cover is threadedly connected on the liquid inlet pipe, a hinged buckle is provided on the outer surface of the box lid, the buckle is matched with the buckle, a sealing edge is provided on the lower edge of the box lid, and the sealing edge is matched with the sealing groove.

[0004] However, when the lid of the existing sealed fresh-keeping box is closed, there is still some air inside, which reduces the sealing effect of the fresh-keeping box and causes the soup in the food to spill. Utility Model Content

[0005] In view of the above problems existing in the existing sealed fresh-keeping boxes, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a press-to-evacuate sealed fresh-keeping box, which solves the problem that when the lid of the existing sealed fresh-keeping box is closed, there is still some air inside, which reduces the sealing effect of the fresh-keeping box and causes the soup in the food to spill.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A press-to-evacuate sealed fresh-keeping box comprises a fresh-keeping box body, a pressing cover is provided on the top of the fresh-keeping box body, a first fixed frame is fixedly connected to the lower surface of the pressing cover, a sealing seat is provided on the lower surface of the first fixed frame, an air hole is provided in the middle of the sealing seat, a first sealing ring is slidably provided inside the air hole, a circular hole is provided on the pressing cover directly above the first fixed frame, an air extraction button is slidably provided inside the circular hole, a cavity is provided around the interior of the air extraction button, first air inlet holes are provided on both sides of the cavity, and a negative pressure release mechanism is provided on the lower surface of the pressing cover.

[0009] Preferably, the negative pressure release mechanism includes a second fixed frame, a negative pressure release button, a first return spring, a connecting rod, a baffle and a second sealing ring, the second fixed frame is fixedly connected to the lower surface of the buckling cover, the buckling cover is provided with a through hole on the upper surface of the second fixed frame, the negative pressure release button is slidably arranged inside the through hole, the connecting rod is fixedly connected to the lower surface of the negative pressure release button, the lower end of the connecting rod passes through the lower surface of the second fixed frame and is fixedly connected to the baffle, the second sealing ring is slidably sleeved on the rod wall of the connecting rod located between the second fixed frame and the baffle, and the first return spring is slidably sleeved on the rod wall of the connecting rod located inside the second fixed frame.

[0010] Preferably, a second return spring is provided between the air extraction button and the sealing seat.

[0011] Preferably, a second air inlet hole is formed on the lower surface of the second fixing frame, and the second air inlet hole matches the connecting rod.

[0012] Preferably, a gap is left between the negative pressure releasing button and the through hole.

[0013] Preferably, an annular sealing groove is provided on the lower surface of the buckling cover, and a third sealing ring is provided inside the annular sealing groove.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. In the present invention, by pressing the vacuum button, the air inside the first fixed frame enters the interior of the cavity through the two first air inlet holes, and then the interior of the first fixed frame is in a negative pressure state. Then the first sealing ring moves upward, so that the air inside the fresh-keeping box body can be sucked into the interior of the first fixed frame, so that the interior of the fresh-keeping box body is in a negative pressure state, so that the buckle cover can be more tightly connected to the fresh-keeping box body.

[0016] 2. In the present invention, by pressing the negative pressure button, the baffle moves downward, loosening the second sealing ring, and then air can enter the interior of the fresh-keeping box body from the through hole and the second air inlet hole, thereby making the interior thereof contact a negative pressure state, making it easier for the user to open the buckle cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 For the utility model Figure 1 A magnified schematic diagram of part A;

[0020] Figure 3 For the utility model Figure 1 An enlarged schematic diagram of part B;

[0021] Figure 4 For the utility model Figure 1 Enlarged schematic diagram of part C.

[0022] Description of reference numerals:

[0023] 1. Fresh-keeping box body; 2. Buckle cover; 3. First fixed frame; 4. Sealing seat; 5. First sealing ring; 6. Vacuum button; 7. Second fixed frame; 8. Release negative pressure button; 9. First return spring; 10. Connecting rod; 11. Baffle; 12. Second sealing ring; 13. Second return spring; 14. Third sealing ring. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The embodiment of the utility model discloses a press-to-evacuate and seal fresh-keeping box.

[0026] The utility model provides Figure 1-4The shown fresh-keeping box includes a fresh-keeping box body 1, a pressing cover 2 is provided on the top of the fresh-keeping box body 1, a first fixed frame 3 is fixedly connected to the lower surface of the pressing cover 2, a sealing seat 4 is provided on the lower surface of the first fixed frame 3, an air hole is provided in the middle of the sealing seat 4, a first sealing ring 5 is slidingly provided inside the air hole, the pressing cover 2 is located directly above the first fixed frame 3 and is provided with a circular hole, an air extraction button 6 is slidingly provided inside the circular hole, a cavity is provided around the interior of the air extraction button 6, first air inlet holes are provided on both sides of the cavity, and a negative pressure relief mechanism is provided on the lower surface of the pressing cover 2.

[0027] Press the vacuum button 6, and then the air inside the first fixed frame 3 enters the interior of the cavity through the two first air inlet holes, and then the interior of the first fixed frame 3 is in a negative pressure state, and then the first sealing ring 5 moves up, so that the air inside the fresh-keeping box body 1 can be sucked into the interior of the first fixed frame 3, so that the interior of the fresh-keeping box body 1 is in a negative pressure state, so that the buckled cover 2 can be tighter than the fresh-keeping box body 1.

[0028] In order to facilitate opening the buckle cover 2, Figure 1-2 As shown, the negative pressure release mechanism includes a second fixed frame 7, a negative pressure release button 8, a first return spring 9, a connecting rod 10, a baffle 11 and a second sealing ring 12. The second fixed frame 7 is fixedly connected to the lower surface of the pressing cover 2. The pressing cover 2 is provided with a through hole on the upper surface of the second fixed frame 7. The negative pressure release button 8 is slidably arranged inside the through hole. The connecting rod 10 is fixedly connected to the lower surface of the negative pressure release button 8. The lower end of the connecting rod 10 passes through the lower surface of the second fixed frame 7 and is fixedly connected to the baffle 11. The second sealing ring 12 is slidably sleeved on the rod wall of the connecting rod 10 between the second fixed frame 7 and the baffle 11. The first return spring 9 is slidably sleeved on the rod wall of the connecting rod 10 inside the second fixed frame 7. A second air inlet is provided on the lower surface of the second fixed frame 7. The second air inlet matches the connecting rod 10. A gap is left between the negative pressure release button 8 and the through hole.

[0029] Press the negative pressure button 8, and then the baffle 11 moves downward, loosening the second sealing ring 12. Air can then enter the interior of the fresh-keeping box body 1 from the through hole and the second air inlet hole, making the interior of the fresh-keeping box in a negative pressure state, so that the user can open the buckle cover 2.

[0030] In order to facilitate the rebound of the air pump button 6, Figure 1 As shown, a second return spring 13 is provided between the air extraction button 6 and the sealing seat 4 .

[0031] The second return spring 13 can be used to allow the air extraction button 6 to rebound.

[0032] In order to improve the sealing between the fresh-keeping box body 1 and the buckle cover 2, Figure 1and Figure 3 As shown, an annular sealing groove is provided on the lower surface of the pressing cover 2 , and a third sealing ring 14 is provided inside the annular sealing groove.

[0033] The third sealing ring 14 can improve the sealing between the fresh-keeping box body 1 and the buckled cover 2.

[0034] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A press-to-evacuate and seal fresh-keeping box, comprising a fresh-keeping box body (1), characterized in that: A buckle cover (2) is provided above the fresh-keeping box body (1), and a first fixed frame (3) is fixedly connected to the lower surface of the buckle cover (2), a sealing seat (4) is provided on the lower surface of the first fixed frame (3), an air hole is provided in the middle of the sealing seat (4), a first sealing ring (5) is slidably provided inside the air hole, a circular hole is provided on the buckle cover (2) just above the first fixed frame (3), an air extraction button (6) is slidably provided inside the circular hole, a cavity is provided around the interior of the air extraction button (6), and first air inlet holes are provided on both sides of the cavity, and a negative pressure relief mechanism is provided on the lower surface of the buckle cover (2).

2. The press-to-evacuate sealed fresh-keeping box according to claim 1, characterized in that: The negative pressure release mechanism comprises a second fixed frame (7), a negative pressure release button (8), a first return spring (9), a connecting rod (10), a baffle (11) and a second sealing ring (12); the second fixed frame (7) is fixedly connected to the lower surface of the buckling cover (2); a through hole is provided on the upper surface of the buckling cover (2) located at the second fixed frame (7); the negative pressure release button (8) is slidably arranged inside the through hole; the connecting rod (10) is fixedly connected to the lower surface of the negative pressure release button (8); the lower end of the connecting rod (10) passes through the lower surface of the second fixed frame (7) and is fixedly connected to the baffle (11); the second sealing ring (12) is slidably sleeved on the rod wall of the connecting rod (10) located between the second fixed frame (7) and the baffle (11); the first return spring (9) is slidably sleeved on the rod wall of the connecting rod (10) located inside the second fixed frame (7).

3. The press-to-evacuate sealed fresh-keeping box according to claim 1, characterized in that: A second return spring (13) is provided between the air extraction button (6) and the sealing seat (4).

4. The press-to-evacuate sealed fresh-keeping box according to claim 2, characterized in that: A second air inlet hole is provided on the lower surface of the second fixing frame (7), and the second air inlet hole matches the connecting rod (10).

5. The press-to-evacuate sealed fresh-keeping box according to claim 2, characterized in that: A gap is left between the negative pressure releasing button (8) and the through hole.

6. The press-to-evacuate air-sealed fresh-keeping box according to claim 1, characterized in that: An annular sealing groove is provided on the lower surface of the buckling cover (2), and a third sealing ring (14) is provided inside the annular sealing groove.

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