Packaging bag with sealing opening

Abstract

The utility model relates to the technical field of packaging bags with sealing openings, and discloses a packaging bag with a sealing opening, which comprises a bag body, a hand lifting rope is fixedly arranged on the side surface of the bag body, a one-way exhaust valve is fixedly arranged on the right side of the bag body, a sealing strip is arranged in the bag body, an anti-extrusion mechanism is arranged on the inner wall of the bag body, and the anti-extrusion mechanism is arranged on the inner wall of the bag body. According to the packaging bag with the sealing opening, when the bag body is sealed, the first fixing plate and the second fixing plate are close to each other, a cylinder is inserted from a through hole of the second fixing plate, a positioning block is inserted into a positioning hole, and the sealing opening is formed in the bag body; if the side face of the bag body is extruded through external force, the sealing strip cannot be opened, and therefore the situation that the sealing strip is opened, the food fresh-keeping effect is poor, and food is damaged can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags with sealed openings, in particular to a packaging bag with a sealed opening. Background Art

[0002] Packaging bags are bags used to package various items, making it easy to transport and store goods during production and circulation. They are widely used in daily life and industrial production.

[0003] Packaging bags may be used to package food in daily life. Since packaging bags are sealed by sealing strips to keep the food in the packaging bags fresh, if the packaging bags are squeezed when being carried, the sealing strips may be stretched, which may result in poor food preservation effect and cause food damage. Utility Model Content

[0004] The purpose of the present invention is to provide a packaging bag with a sealed opening to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a packaging bag with a sealed opening, comprising a bag body, a hand rope fixedly mounted on the side of the bag body, a one-way exhaust valve fixedly mounted on the right side of the bag body, a sealing strip disposed inside the bag body, an anti-extrusion mechanism disposed on the inner wall of the bag body, and an exhaust mechanism disposed on the outside of the bag body, wherein the anti-extrusion mechanism comprises:

[0006] A first fixing plate, the first fixing plate is fixedly mounted on the left side of the inner wall of the bag body, a sealing strip is fixedly mounted on the right side of the first fixing plate, and a cylinder is fixedly mounted at the through hole of the first fixing plate;

[0007] The extrusion spring has its top fixedly mounted in the groove of the cylinder, and can reset the positioning block after being squeezed. The positioning block is fixedly mounted on one end of the extrusion spring away from the cylinder.

[0008] Preferably, a second fixing plate is fixedly installed on the right side of the inner wall of the bag body, and a positioning hole is opened on the inner wall of the through hole of the second fixing plate to facilitate the insertion of the positioning block to fix the first fixing plate and the second fixing plate.

[0009] Preferably, the exhaust mechanism includes: a fixed block, the top of the fixed block is fixedly mounted on the bottom of the second fixed plate, and a rotating rod is rotatably mounted on the left side of the fixed block to facilitate the rotation of the U-shaped extrusion rod.

[0010] Preferably, a torsion spring is fixedly installed on the outer wall of the rotating rod, which can reset the U-shaped extrusion rod when it is squeezed and rotated, so that the air in the bag is discharged from the one-way exhaust valve. The end of the torsion spring away from the rotating rod is fixedly installed on the left side of the fixed block, and the outer wall of the rotating rod is fixedly installed with a U-shaped extrusion rod.

[0011] Preferably, the cylinder, the extrusion spring and the positioning block are provided in two groups, which are symmetrically distributed on the front and rear sides of the first fixing plate, so that the first fixing plate and the second fixing plate can be clamped better and tighter.

[0012] Preferably, the exhaust mechanism is provided with two groups, which are symmetrically distributed at the bottom of the first fixed plate and the second fixed plate. When the first fixed plate and the second fixed plate are close to each other, the two groups of U-shaped extrusion rods can be squeezed against each other, so that the gas in the bag body can be discharged from the one-way exhaust valve 3.

[0013] Compared with the prior art, the present invention provides a packaging bag with a sealed opening, which has the following beneficial effects:

[0014] 1. When the packaging bag with a sealing opening is sealed, the first fixing plate and the second fixing plate are brought close to each other, the cylinder is inserted from the through hole of the second fixing plate, the positioning block is inserted into the positioning hole, and then the sealing strip is sealed. In this way, the bag body can be sealed. If the side of the bag body is squeezed by external force, the sealing strip cannot be opened. In this way, the sealing strip can be prevented from being opened, resulting in poor food preservation effect and food damage.

[0015] 2. The packaging bag with a sealed opening can drive the fixed block to move by bringing the first fixed plate and the second fixed plate closer together, so that the rotating rod drives the U-shaped extrusion rod to move. At this time, the two U-shaped extrusion rods are close to each other, so that the gas in the bag can be discharged from the one-way exhaust valve. In this way, there is no need for people to manually squeeze the bag, and the bag can be automatically exhausted, which is convenient and saves trouble. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of the utility model;

[0017] Figure 2 This is a schematic diagram of the exhaust mechanism structure of the utility model;

[0018] Figure 3 This is a partial cross-sectional structural diagram of the anti-extrusion mechanism of the utility model;

[0019] Figure 4 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0020] In the figure: 1. Bag body; 2. Hand rope; 3. One-way exhaust valve; 4. Sealing strip; 5. Anti-extrusion mechanism; 51. First fixing plate; 52. Cylinder; 53. Extrusion spring; 54. Positioning block; 55. Second fixing plate; 56. Positioning hole; 6. Exhaust mechanism; 61. Fixing block; 62. Rotating rod; 63. Torsion spring; 64. U-shaped extrusion rod. DETAILED DESCRIPTION

[0021] like Figures 1-4 As shown, the utility model provides a technical solution: a packaging bag with a sealed opening, comprising a bag body 1, a hand rope 2 fixedly installed on the side of the bag body 1 for easy carrying, a one-way exhaust valve 3 fixedly installed on the right side of the bag body 1, a sealing strip 4 provided inside the bag body 1 for sealing the bag body 1, an anti-squeezing mechanism 5 provided on the inner wall of the bag body 1 for preventing the bag body 1 from being stretched when squeezed, an exhaust mechanism 6 provided on the outside of the bag body 1 for automatically exhausting the air in the bag body 1, two groups of exhaust mechanisms 6 provided, symmetrically distributed at the bottom of the first fixed plate 51 and the second fixed plate 55, so that when the first fixed plate 51 and the second fixed plate 55 are close to each other, the two groups of U-shaped extrusion rods 64 can be squeezed against each other, so that the gas in the bag body 1 can be discharged from the one-way exhaust valve 3.

[0022] Specifically, the anti-extrusion mechanism 5 includes: a first fixed plate 51, a cylinder 52, an extrusion spring 53, a positioning block 54, a second fixed plate 55, and a positioning hole 56. The first fixed plate 51 is fixedly installed on the left side of the inner wall of the bag body 1, and the sealing strip 4 is fixedly installed on the right side of the first fixed plate 51. The cylinder 52 and the extrusion spring 53 are fixedly installed at the through hole of the first fixed plate 51. The top of the extrusion spring 53 is fixedly installed in the groove of the cylinder 52, and the positioning block 54 is fixedly installed on the end of the extrusion spring 53 away from the cylinder 52. There are two groups of cylinders 52, extrusion springs 53, and positioning blocks 54, which are symmetrically distributed on the front and back sides of the first fixed plate 51. The first fixing plate 51 and the second fixing plate 55 can be clamped better and tighter. The second fixing plate 55 is fixedly installed on the right side of the inner wall of the bag body 1. By bringing the first fixing plate 51 and the second fixing plate 55 closer to each other, the cylinder 52 is inserted from the through hole of the second fixing plate 55. A positioning hole 56 is provided on the inner wall of the through hole of the second fixing plate 55. When inserted, the positioning block 54 will be squeezed by the outer wall of the second fixing plate 55, causing it to drive the extrusion spring 53 to compress. When the cylinder 52 is fully inserted, the positioning block 54 will be aligned with the positioning hole 56, and the extrusion spring 53 will insert the positioning block 54 into the positioning hole 56.

[0023] Specifically, the exhaust mechanism 6 includes: a fixed block 61, a rotating rod 62, a torsion spring 63, and a U-shaped extrusion rod 64. The top of the fixed block 61 is fixedly installed on the bottom of the second fixed plate 55, and the rotating rod 62 is rotatably installed on the left side of the fixed block 61. The outer wall of the rotating rod 62 is fixedly installed with a torsion spring 63. The end of the torsion spring 63 away from the rotating rod 62 is fixedly installed on the left side of the fixed block 61, and the outer wall of the rotating rod 62 is fixedly installed with a U-shaped extrusion rod 64. When the first fixed plate 51 and the second fixed plate 55 are close to each other, the fixed block 61 can be driven to move, and the rotating rod 62 can be driven to move at the same time. At the same time, the U-shaped extrusion rod 64 will be blocked by the bag body 1, causing the rotating rod 62 to rotate, and the torsion spring 63 to twist, so that the two U-shaped extrusion rods 64 are close to each other. The extrusion force of the torsion spring 63 can enable the gas in the bag body 1 to be discharged from the one-way exhaust valve 3.

[0024] Working principle: When the bag body 1 is sealed, the first fixing plate 51 and the second fixing plate 55 are brought close to each other, so that the cylinder 52 is inserted from the through hole of the second fixing plate 55. During the insertion, the positioning block 54 will be squeezed by the outer wall of the second fixing plate 55, causing the squeezing spring 53 to be compressed. When the cylinder 52 is fully inserted, the positioning block 54 will be aligned with the positioning hole 56, and the squeezing spring 53 will insert the positioning block 54 into the positioning hole 56, and then seal the sealing strip 4. This will make the bag body 1 sealed. If the side of the bag body 1 is squeezed by external force, the sealing strip 4 cannot be opened. This can prevent the sealing strip 4 from being opened, resulting in poor food preservation and food damage.

[0025] By bringing the first fixing plate 51 and the second fixing plate 55 closer together, the fixing block 61 can be driven to move, and at the same time, the rotating rod 62 can be driven to move. At the same time, the U-shaped extrusion rod 64 will be blocked by the bag body 1, causing the rotating rod 62 to rotate and the torsion spring 63 to twist. If the sealing strip 4 is quickly sealed, the two U-shaped extrusion rods 64 will be closer to each other, and the extrusion force of the torsion spring 63 can enable the gas in the bag body 1 to be discharged from the one-way exhaust valve 3. In this way, there is no need for people to manually squeeze the bag body 1, and it can be automatically exhausted, which is convenient and saves trouble. The above generally describes the utility model in detail, but on the basis of the utility model, some modifications or improvements can be made to it, which is obvious to those skilled in the art. Therefore, modifications or improvements that do not depart from the spirit of the utility model are within the scope of protection of the utility model.

Claims

1. A packaging bag with a sealed opening, comprising a bag body (1), characterized in that: A hand rope (2) is fixedly mounted on the side of the bag body (1), a one-way exhaust valve (3) is fixedly mounted on the right side of the bag body (1), a sealing strip (4) is provided inside the bag body (1), an anti-extrusion mechanism (5) is provided on the inner wall of the bag body (1), and an exhaust mechanism (6) is provided outside the bag body (1), the anti-extrusion mechanism (5) comprising: A first fixing plate (51), the first fixing plate (51) is fixedly mounted on the left side of the inner wall of the bag body (1), a sealing strip (4) is fixedly mounted on the right side of the first fixing plate (51), and a cylinder (52) is fixedly mounted at the through hole of the first fixing plate (51); A squeezing spring (53) is fixedly mounted on the top of the squeezing spring (53) in the groove of the cylinder (52). A positioning block (54) is fixedly mounted on the end of the squeezing spring (53) away from the cylinder (52). A second fixing plate (55) is fixedly mounted on the right side of the inner wall of the bag body (1). A positioning hole (56) is opened on the inner wall of the through hole of the second fixing plate (55).

2. The packaging bag with a sealed opening according to claim 1, characterized in that: The exhaust mechanism (6) comprises a fixed block (61), the top of the fixed block (61) is fixedly mounted on the bottom of the second fixed plate (55), and a rotating rod (62) is rotatably mounted on the left side of the fixed block (61).

3. The packaging bag with a sealed opening according to claim 2, characterized in that: A torsion spring (63) is fixedly mounted on the outer wall of the rotating rod (62), and one end of the torsion spring (63) away from the rotating rod (62) is fixedly mounted on the left side of the fixed block (61). A U-shaped extrusion rod (64) is fixedly mounted on the outer wall of the rotating rod (62).

4. The packaging bag with a sealed opening according to claim 1, characterized in that: The cylinder (52), the extrusion spring (53), and the positioning block (54) are provided in two groups and are symmetrically distributed on the front and rear sides of the first fixing plate (51).

5. The packaging bag with a sealed opening according to claim 1, characterized in that: The exhaust mechanism (6) is provided in two groups and is symmetrically distributed at the bottom of the first fixing plate (51) and the second fixing plate (55).

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