Vacuum packaging box

Abstract

The utility model relates to the field of vacuum packaging boxes, in particular to a vacuum packaging box. Comprising a bottom plate, the upper surface of the bottom plate is fixedly connected with a box body, the surface of the box body is sleeved with a vacuum cover, a fixing structure is arranged above an abutting plate and comprises a pressing frame, the pressing frame is arranged above the bottom plate, and the two ends of the bottom plate and the two ends of the pressing frame are each fixedly connected with two limiting blocks; the inner walls of the limiting blocks are rotationally connected with rotating shafts, the arc surfaces of the rotating shafts are fixedly connected with connecting rods, the ends, away from the rotating shafts, of the connecting rods are rotationally connected with rotating rods, the ends, close to each other, of the two rotating rods are fixedly connected with connecting rods, and the two ends of the bottom plate are fixedly connected with fixing plates. The vacuum packaging box has the advantages that the vacuum cover can be conveniently fixed, the box body can be conveniently vacuumized, and the situation that in the using process of the vacuum box, the vacuum box is prone to leakage due to the fact that the vacuum cover is difficult to fix is avoided.

Description

Technical Field

[0001] The utility model relates to the field of vacuum packaging boxes, in particular to a vacuum packaging box. Background Art

[0002] A vacuum packaging box is composed of a bottom plate, a vacuum cover and a box body. It is a device used to vacuum pack items and is more common in daily life.

[0003] The prior art includes a utility model with publication number CN220616739U, which discloses a vacuum packaging box. The patent adopts a packaging box body, wherein a plurality of extrusion plates are arranged inside the packaging box body, a rotary cylinder is embedded on one side of the extrusion plate, a screw is passed through the interior of the rotary cylinder, and the screw is connected to the rotary cylinder by a thread, and the screw is fixed to one side of the inner wall of the packaging box body. A groove is provided on one side of the surface of the extrusion plate, and a lower pressure plate is provided inside the groove. The problem that the existing vacuum packaging box is used, the packaging bag containing vacuum-packed high-purity semiconductors is placed inside the box body, and then the box cover is closed and the packaging and transportation are realized by a portable rack, so as to ensure that the packaging bag containing vacuum-packed high-purity semiconductors will not lose the vacuum state due to external interference. However, when the vacuum packaging box is used to centrally package and store the vacuum packaging bags containing high-purity semiconductors, the vacuum packaging bags are placed in the packaging box. During the transportation process, the vacuum packaging bags are easily shaken in the box. During the shaking process, the sealing mouth of the packaging bag is easily cracked, resulting in the loss of the vacuum packaging state. For this reason, we propose a vacuum packaging box.

[0004] The inventors have found in their daily work that in the process of using a vacuum box, there is a problem that the existing vacuum box is used by inserting a vacuum pump into the interior of a vacuum cover, but it is difficult to fix the vacuum cover after the vacuuming is completed.

[0005] Therefore, it is necessary to provide a new vacuum packaging box to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a vacuum packaging box.

[0007] To solve the above technical problems, the utility model provides a vacuum packaging box, comprising: a bottom plate, the upper surface of the bottom plate is fixedly connected to the box body, the surface of the box body is covered with a vacuum cover, a fixing structure is provided above the abutment plate, the fixing structure includes a pressing frame, the pressing frame is arranged above the bottom plate, two limit blocks are fixedly connected to both ends of the bottom plate and the pressing frame, the inner wall of the limit block is rotatably connected to the rotating shaft, the arc surface of the rotating shaft is fixedly connected to the connecting rod, the end of the connecting rod away from the rotating shaft is rotatably connected to the rotating rod, and the ends of the two rotating rods close to each other are fixedly connected to the connecting rod, the two ends of the bottom plate are fixedly connected to the fixing plate, the fixing plate is clamped with the connecting rod, and the lower end of the vacuum cover is arranged between the pressing frame and the bottom plate.

[0008] The effect achieved by the above components is: when the vacuum cover needs to be fixed, the fixed cover is placed between the base plate and the pressure frame, and then the connecting rod is pulled to move, the connecting rod drives the rotating rod to move, the rotating rod drives the connecting rod to move, the limit rod drives the rotating shaft to move, the rotating shaft drives the limit block to move, the limit block drives the pressure frame and the base plate to approach each other, and then the pressure frame fixes the vacuum cover.

[0009] Preferably, a plurality of protective sleeves are fixedly connected to the arc surface of the connecting rod, and the plurality of protective sleeves are evenly distributed on the connecting rod.

[0010] The effects achieved by the above components are: the protective sleeve can protect the connecting rod and prevent the connecting rod from excessive wear during use.

[0011] Preferably, the arc surface of the rotating rod is covered with a first coil spring, and both ends of the first coil spring are fixedly connected to the connecting rod.

[0012] The effects achieved by the above components are: when the vacuum cover is pressed and fixed, the coil spring contracts; after use, the coil spring stretches to drive the pressing frame and the bottom plate to separate.

[0013] Preferably, a plurality of anti-slip pads are fixedly connected to the interior of the fixing plate, and the plurality of anti-slip pads are evenly distributed on the fixing plate.

[0014] The effect achieved by the above components is that the anti-slip pad can increase the friction between the fixing plate and the connecting rod, thereby preventing the connecting rod from sliding when the fixing plate is fixed.

[0015] Preferably, an auxiliary structure is provided on one side of the vacuum cover, and the auxiliary structure includes a connecting ring, which is fixedly connected to the vacuum cover, and the vacuum cover is communicated with the connecting ring. The inner wall of the connecting ring is fixedly connected to a circular plate, and the side of the circular plate away from the vacuum cover is fixedly connected to a plurality of auxiliary blocks, the inner wall of the auxiliary block is rotatably connected to a shaft, and the arc surface of the shaft is fixedly connected to a baffle, and the arc surfaces at both ends of the shaft are each covered with a second coil spring, and the two ends of the coil spring are respectively fixedly connected to the auxiliary block and the baffle.

[0016] The effect achieved by the above components is: when it is necessary to facilitate vacuuming of the vacuum cover, the vacuum machine is connected to the connecting ring, the vacuum machine drives the air to flow, the air drives the baffle to move, the baffle and the circular plate are opened, the baffle drives the shaft to move, the shaft drives the second coil spring to contract, after the vacuuming is completed, the air stops flowing, and then the coil spring is stretched to drive the baffle and the circular plate to fit together to close the circular plate.

[0017] Preferably, a sealing gasket is fixedly connected to one side of the baffle, and the sealing gasket is a rubber gasket.

[0018] The effects achieved by the above components are: the sealing gasket can increase the sealing between the circular plate and the baffle, thereby preventing air leakage during vacuuming.

[0019] Preferably, a plurality of spirals are provided inside the connecting ring, and the plurality of spirals are evenly distributed on the inner wall of the connecting ring.

[0020] The effect achieved by the above components is that the spiral can facilitate the vacuum machine to make the air form a spiral when vacuuming, which can increase the speed of vacuuming.

[0021] Compared with the related art, the vacuum packaging box provided by the present invention has the following beneficial effects:

[0022] The utility model provides a vacuum packaging box, which can easily fix the vacuum cover and evacuate the box body by setting a fixing structure, thereby avoiding leakage of the vacuum box due to difficulty in fixing the vacuum cover during use of the vacuum box.

[0023] By providing the auxiliary structure, the vacuum extraction of the vacuum cover can be facilitated, thereby improving the vacuum extraction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of the vacuum packaging box provided by the utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the internal structure shown;

[0026] Figure 3 for Figure 1 Schematic diagram of the fixed structure shown;

[0027] Figure 4 for Figure 3 An enlarged view of point A is shown;

[0028] Figure 5 for Figure 1 A schematic diagram of the auxiliary structure shown;

[0029] Figure 6 for Figure 5 Schematic diagram of part of the structure shown;

[0030] Figure 7 for Figure 6 An enlarged view of point B is shown.

[0031] Numbers in the figure: 1. Base plate; 2. Vacuum cover; 3. Box body; 4. Fixed structure; 401. Press frame; 402. Fixed plate; 403. Anti-slip pad; 404. Limit block; 405. Connecting rod; 406. Protective cover; 407. Rotating shaft; 408. Connecting rod; 409. Rotating rod; 410. First coil spring; 5. Auxiliary structure; 51. Connecting ring; 52. Spiral; 53. Round plate; 54. Baffle; 55. Auxiliary block; 56. Shaft; 57. Second coil spring; 58. Sealing pad. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0034] See also Figures 1 to 7 The vacuum packaging box provided by the embodiment of the present invention includes: a bottom plate 1, the upper surface of the bottom plate 1 is fixedly connected to a box body 3, the surface of the box body 3 is covered with a vacuum cover 2, a fixing structure 4 is provided above the plate, and an auxiliary structure 5 is provided on one side of the vacuum cover 2.

[0035] In the embodiments of the present invention, please refer to Figures 1 to 4The fixed structure 4 includes a pressing frame 401, which is arranged above the bottom plate 1. Two limit blocks 404 are fixedly connected to both ends of the bottom plate 1 and the pressing frame 401. The inner wall of the limit block 404 is rotatably connected to a rotating shaft 407. The arc surface of the rotating shaft 407 is fixedly connected to a connecting rod 408. The end of the connecting rod 408 away from the rotating shaft 407 is rotatably connected to a rotating rod 409. The ends of the two rotating rods 409 close to each other are fixedly connected to a connecting rod 405. Both ends of the bottom plate 1 are fixedly connected to a fixing plate 402, and the fixing plate 402 is clamped with the connecting rod 405. The lower end of the vacuum cover 2 is arranged between the pressing frame 401 and the bottom plate 1. When the vacuum cover 2 needs to be fixed, the fixed cover is placed between the base plate 1 and the pressing frame 401, and then the connecting rod 405 is pulled to move. The connecting rod 405 drives the rotating rod 409 to move, and the rotating rod 409 drives the connecting rod 408 to move. The limiting rod drives the rotating shaft 407 to move, and the rotating shaft 407 drives the limiting block 404 to move. The limiting block 404 drives the pressing frame 401 and the base plate 1 to approach each other, and then the pressing frame 401 fixes the vacuum cover 2. The arc surface of the connecting rod 405 is fixedly connected to a plurality of protective sleeves 406, and the plurality of protective sleeves 406 are evenly distributed on the connecting rod 405. The protective sleeves 406 can protect the connecting rod 405 and prevent the connecting rod 405 from excessive wear during use. The arc surface of the rotating rod 409 is covered with a first coil spring 410, and both ends of the first coil spring 410 are fixedly connected to the connecting rod 408. When the vacuum cover 2 is pressed and fixed, the coil spring contracts. After use, the coil spring stretches to separate the pressing frame 401 from the bottom plate 1. Several anti-skid pads 403 are fixedly connected to the interior of the fixing plate 402 and are evenly distributed on the fixing plate 402. The anti-skid pads 403 increase the friction between the fixing plate 402 and the connecting rod 405, preventing the connecting rod 405 from slipping when the fixing plate 402 is fixed.

[0036] In the embodiments of the present invention, please refer to Figures 5 to 7The auxiliary structure 5 includes a connecting ring 51, which is fixedly connected to the vacuum cover 2, and the vacuum cover 2 is communicated with the connecting ring 51. The inner wall of the connecting ring 51 is fixedly connected to a circular plate 53, and a side of the circular plate 53 away from the vacuum cover 2 is fixedly connected to a number of auxiliary blocks 55. The inner wall of the auxiliary block 55 is rotatably connected to a shaft 56, and the arc surface of the shaft 56 is fixedly connected to a baffle 54. The arc surfaces at both ends of the shaft 56 are both covered with a second coil spring 57, and the two ends of the coil spring are respectively fixedly connected to the auxiliary block 55 and the baffle 54. When it is necessary to facilitate vacuuming of the vacuum cover 2, the vacuum pump is connected to the connecting ring 51, and the vacuum pump drives the air to flow, and the air drives the baffle 54 to move, and the baffle 54 and the circular plate 53 are opened. The baffle 54 drives the shaft 56 to move, and the shaft 56 drives the second coil spring 57 to contract. After the vacuuming is completed, the air stops flowing, and then the coil spring stretches to drive the baffle 54 and the circular plate 53 to fit together to close the circular plate 53. A sealing gasket 58 is fixedly connected to one side of the baffle 54, and the sealing gasket 58 is a rubber gasket. The sealing gasket 58 can increase the sealing between the circular plate 53 and the baffle 54 to avoid air leakage during vacuuming. The interior of the connecting ring 51 is provided with a plurality of spirals 52, and the plurality of spirals 52 are evenly distributed on the inner wall of the connecting ring 51. The spirals 52 can facilitate the vacuum pump to form the air into spirals 52 during vacuuming, which can increase the speed of vacuuming.

[0037] The working principle of the vacuum packaging box provided by the present invention is as follows: when the vacuum cover 2 needs to be fixed, the fixed cover is placed between the bottom plate 1 and the pressing frame 401, and then the connecting rod 405 is pulled to move, the connecting rod 405 drives the rotating rod 409 to move, the rotating rod 409 drives the connecting rod 408 to move, the limiting rod drives the rotating shaft 407 to move, the rotating shaft 407 drives the limiting block 404 to move, the limiting block 404 drives the pressing frame 401 and the bottom plate 1 to approach each other, and then the pressing frame 401 fixes the vacuum cover 2, and the protective sleeve 406 can protect the connecting rod 405 to prevent excessive wear of the connecting rod 405 during use. When the vacuum cover 2 is pressed and fixed, the coil spring contracts. After use, the coil spring stretches to drive the pressing frame 401 to separate from the bottom plate 1, and the anti-slip pad 403 can increase the friction between the fixing plate 402 and the connecting rod 405 to prevent sliding when the connecting rod 405 and the fixing plate 402 are fixed.

[0038] When it is necessary to facilitate vacuuming of the vacuum cover 2, the vacuum machine is connected to the connecting ring 51, the vacuum machine drives the air to flow, the air drives the baffle 54 to move, the baffle 54 and the circular plate 53 are opened, the baffle 54 drives the shaft 56 to move, the shaft 56 drives the second coil spring 57 to contract, after the vacuuming is completed, the air stops flowing, and then the coil spring is stretched to drive the baffle 54 and the circular plate 53 to fit together to close the circular plate 53, the sealing gasket 58 can increase the sealing between the circular plate 53 and the baffle 54, and avoid the effect of air leakage in the vacuuming shaft, the spiral 52 can facilitate the vacuum machine to form the air into a spiral 52 when vacuuming, which can increase the speed of vacuuming.

[0039] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Vacuum packaging box, characterized in that, include: A bottom plate (1) is fixedly connected to a box body (3) on the upper surface of the bottom plate (1), a vacuum cover (2) is provided on the surface of the box body (3), a fixing structure (4) is provided above the abutment plate, the fixing structure (4) comprises a pressing frame (401), the pressing frame (401) is arranged above the bottom plate (1), two limiting blocks (404) are fixedly connected to both ends of the bottom plate (1) and the pressing frame (401), the inner wall of the limiting block (404) is rotatably connected to a rotating shaft (407), the rotating shaft (407) is fixedly connected to the inner wall of the limiting block (404), and the rotating shaft (407) is fixedly connected to the inner wall of the limiting block (404). The arc surface of the shaft (407) is fixedly connected to a connecting rod (408), and one end of the connecting rod (408) away from the rotating shaft (407) is rotatably connected to a rotating rod (409), and one end of the two rotating rods (409) close to each other is fixedly connected to a connecting rod (405), and both ends of the bottom plate (1) are fixedly connected to a fixing plate (402), and the fixing plate (402) is snap-fitted to the connecting rod (405), and the lower end of the vacuum cover (2) is arranged between the pressing frame (401) and the bottom plate (1).

2. The vacuum packaging box according to claim 1, characterized in that: A plurality of protective sleeves (406) are fixedly connected to the arc surface of the connecting rod (405), and the plurality of protective sleeves (406) are evenly distributed on the connecting rod (405).

3. The vacuum packaging box according to claim 1, characterized in that: The arc surface of the rotating rod (409) is covered with a first coil spring (410), and both ends of the first coil spring (410) are fixedly connected to the connecting rod (408).

4. The vacuum packaging box according to claim 1, characterized in that: A plurality of anti-slip pads (403) are fixedly connected to the interior of the fixing plate (402), and the plurality of anti-slip pads (403) are evenly distributed on the fixing plate (402).

5. The vacuum packaging box according to claim 1, characterized in that: An auxiliary structure (5) is provided on one side of the vacuum cover (2), and the auxiliary structure (5) comprises a connecting ring (51), the connecting ring (51) is fixedly connected to the vacuum cover (2), and the vacuum cover (2) is communicated with the connecting ring (51), the inner wall of the connecting ring (51) is fixedly connected to a circular plate (53), and a side of the circular plate (53) away from the vacuum cover (2) is fixedly connected to a plurality of auxiliary blocks (55), the inner wall of the auxiliary block (55) is rotatably connected to a shaft (56), the circular arc surface of the shaft (56) is fixedly connected to a baffle (54), and the circular arc surfaces at both ends of the shaft (56) are both sleeved with a second coil spring (57), and the two ends of the coil spring are respectively fixedly connected to the auxiliary block (55) and the baffle (54).

6. The vacuum packaging box according to claim 5, characterized in that: A sealing gasket (58) is fixedly connected to one side of the baffle (54), and the sealing gasket (58) is a rubber gasket.

7. The vacuum packaging box according to claim 5, characterized in that: A plurality of spirals (52) are provided inside the connecting ring (51), and the plurality of spirals (52) are evenly distributed on the inner wall of the connecting ring (51).

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