A ring-shaped foldable plastic packaging bag

Abstract

The utility model discloses an annular foldable plastic packaging bag, and relates to the technical field of plastic packaging bags. The utility model comprises a plastic packaging bag, wherein a handle is fixedly connected to the top of the plastic packaging bag, a reinforcing rib is arranged on the inner wall of the plastic packaging bag, a folding and buckling mechanism is arranged at the front end of the plastic packaging bag, and the folding and buckling mechanism comprises an inserting block and a fixing block, wherein the inserting block is fixedly connected to the front end of the plastic packaging bag. The utility model is provided with the folding and buckling mechanism, so that after the plastic packaging bag is annularly folded, the inserting block is aligned with the rear end slot of the fixing block and inserted, at which time, the inserting block cannot be separated from the slot through the cooperation of components such as an arc block and a card slot, thereby preventing the folded plastic packaging bag from being spread out, and the arc block can be squeezed out of the card slot through the resisting block, thereby spreading out the plastic packaging bag again, and the utility model is simple and convenient to use, and is not easy to cause damage to the plastic packaging bag.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic packaging bags, in particular to a ring-shaped folding plastic packaging bag. Background Art

[0002] Plastic packaging bags are made of plastic as raw material and are used to produce various daily necessities packaging bags. They are widely used in daily life and industrial production. Commonly used plastic packaging bags are mostly made of polyethylene film, which is non-toxic and can be used to hold food.

[0003] The utility model with publication number CN218023068U discloses an annular foldable plastic packaging bag, comprising a packaging bag main body, a hand strap being connected to the upper end of the packaging bag main body, reinforcing ribs being arranged on the inner and outer surfaces of the packaging bag main body and the hand strap, a fixing ring being connected to the outer side of the bag opening of the packaging bag main body, a coil passing through the interior of the fixing ring, and an adjustment buckle being installed on the coil. In the above application document, after the packaging bag main body is rolled up, the upper snap button and the lower snap button are buckled with each other under the condition that the position of the lower snap button on the packaging bag main body is higher than the position of the upper snap button on the packaging bag main body and the connection mode between the upper snap button and the lower snap button is a movable buckle connection, so as to effectively prevent the rolled-up packaging bag main body from unfolding. When the packaging bag main body needs to be unfolded and used again, the upper snap button and the lower snap button need to be pulled apart, and at this time, it is easy to cause damage to the packaging bag main body by excessive force. Utility Model Content

[0004] The utility model aims to provide a ring-shaped foldable plastic packaging bag to solve the existing problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses an annular foldable plastic packaging bag, comprising a plastic packaging bag, a handle fixedly connected to the top of the plastic packaging bag, a reinforcing rib arranged on the inner wall of the plastic packaging bag, a folding and buckling mechanism arranged at the front end of the plastic packaging bag, the folding and buckling mechanism comprising an insert block and a fixing block, the insert block being fixedly connected to the front end of the plastic packaging bag, a groove being arranged at the top of the insert block, a telescopic spring being arranged inside the groove, an arc block being slidably connected to the groove via the telescopic spring, a slot being arranged at the rear end of the fixing block, a compression spring being arranged inside the slot, a card slot being arranged at the top of the slot, a resisting block being slidably connected inside the card slot, and an anti-mistaken-touch mechanism being arranged at the top of the resisting block.

[0007] Furthermore, the opening size of the slot corresponds to the size of the plug-in block, the length of the slot is greater than the length of the plug-in block, and the plug-in block can completely enter the slot.

[0008] Furthermore, the opening size of the groove is equal to the opening size of the slot, and one third of the top of the arc block is located outside the groove in the initial state, so that the arc block can be inserted into the slot.

[0009] Furthermore, the arc surface of the arc block faces forward, and the length of the arc block is smaller than the depth of the groove. When the arc surface of the arc block is squeezed, it will move into the groove, and the arc block can be completely retracted into the groove.

[0010] Furthermore, the anti-accidental-touch mechanism includes a through groove, which is opened on the side of the support block, and the interior of the through groove is fixedly connected to a pneumatic chamber, an internal piston at one end of the pneumatic chamber is slidably connected to a pull rod, and an internal piston at the other end of the pneumatic chamber is slidably connected to a push rod, an end of the push rod away from the pneumatic chamber is fixedly connected to a clamping block, and a return spring is sleeved on the surface of the push rod.

[0011] Furthermore, the bottom of the clamping block abuts against the top of the fixing block in an initial state, and the abutment between the bottom of the clamping block and the top of the fixing block makes it impossible for the clamping block to move downward.

[0012] Furthermore, both ends of the return spring are in conflict with the block and the air pressure chamber in an initial state, and when the block moves into the through slot, it squeezes the return spring to gradually tighten it.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model is provided with a folding and locking mechanism, so that after the plastic packaging bag is annularly folded, the insert block is aligned with the rear end slot of the fixed block and inserted. At this time, the insertion block cannot be separated from the slot through the cooperation of the arc block, the card slot and other components, thereby preventing the folded plastic packaging bag from spreading out. The arc block can be squeezed out of the card slot through the resisting block to spread out the plastic packaging bag again. The use is simple and convenient, and it is not easy to cause damage to the plastic packaging bag.

[0015] 2. The utility model is provided with an anti-accidental touch mechanism, so that the cooperation of the air pressure chamber, the push rod, the card block and other components makes it possible to press the push block to squeeze the arc block out of the card slot only after the pull rod is pulled up, effectively avoiding the situation where the push block squeezes the arc block out of the card slot due to accidental touch, causing the plastic packaging bag to spread out.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional front view of the overall structure of the utility model;

[0019] Figure 2 It is a three-dimensional back view of the overall structure of the utility model;

[0020] Figure 3 It is a three-dimensional cross-sectional view of the folding and buckling mechanism structure of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of the structure of the anti-mistouch mechanism of the utility model;

[0022] Figure 5 For this utility model Figure 4 A three-dimensional enlarged view of the structure at center A.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Plastic packaging bag; 2. Handle; 3. Reinforcing rib; 4. Folding and snapping mechanism; 41. Insert block; 42. Groove; 43. Telescopic spring; 44. Arc block; 45. Fixed block; 46. Slot; 47. Compression spring; 48. Slot; 49. Stop block; 5. Anti-accidental touch mechanism; 51. Through slot; 52. Air pressure chamber; 53. Pull rod; 54. Push rod; 55. Block; 56. Reset spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5The utility model is a ring-shaped folding plastic packaging bag, comprising a plastic packaging bag 1, a handle 2 is fixedly connected to the top of the plastic packaging bag 1, a reinforcing rib 3 is arranged on the inner wall of the plastic packaging bag 1, a folding and buckling mechanism 4 is arranged at the front end of the plastic packaging bag 1, and the folding and buckling mechanism 4 comprises an insert block 41 and a fixing block 45, the insert block 41 is fixedly connected to the front end of the plastic packaging bag 1, a groove 42 is provided at the top of the insert block 41, a telescopic spring 43 is arranged inside the groove 42, an arc block 44 is slidably connected to the groove 42 through the telescopic spring 43, a slot 46 is provided at the rear end of the fixing block 45, a compression spring 47 is arranged inside the slot 46, a card slot 48 is provided at the top of the slot 46, a resist block 49 is slidably connected inside the card slot 48, and an anti-mistaken touch mechanism 5 is arranged on the top of the resist block 49.

[0027] The opening size of the slot 46 corresponds to the size of the insert block 41 , the length of the slot 46 is greater than the length of the insert block 41 , and the insert block 41 can completely enter the slot 46 .

[0028] The opening size of the groove 42 is equal to the opening size of the slot 48 . In the initial state, one third of the top of the arc block 44 is located outside the groove 42 , and the arc block 44 can be inserted into the slot 48 .

[0029] The arc surface of the arc block 44 faces forward, and the length of the arc block 44 is less than the depth of the groove 42 . When the arc surface of the arc block 44 is squeezed, it will move into the groove 42 , and the arc block 44 can be completely retracted into the groove 42 .

[0030] The anti-accidental-touch mechanism 5 includes a through groove 51, which is opened on the side of the stop block 49. A pneumatic chamber 52 is fixedly connected inside the through groove 51. A pull rod 53 is slidably connected to the internal piston at one end of the pneumatic chamber 52. A push rod 54 is slidably connected to the internal piston at the other end of the pneumatic chamber 52. A clamping block 55 is fixedly connected to the end of the push rod 54 away from the pneumatic chamber 52. A return spring 56 is sleeved on the surface of the push rod 54.

[0031] The bottom of the clamping block 55 abuts against the top of the fixing block 45 in the initial state, and the bottom of the clamping block 55 abuts against the top of the fixing block 45 so that the abutting block 49 cannot move downward.

[0032] Both ends of the return spring 56 initially contact the block 55 and the air pressure chamber 52 . When the block 55 moves into the through slot 51 , it squeezes the return spring 56 to gradually tighten it.

[0033] A specific application of this embodiment is: articles can be placed through the plastic packaging bag 1, the handle 2 is convenient for carrying, the reinforcing rib 3 can strengthen the overall strength of the plastic packaging bag 1, and when the plastic packaging bag 1 is idle, it can be folded in a ring from top to bottom. After folding properly, the insert block 41 is inserted into the slot 46 at the rear end of the fixing block 45, and the compression spring 47 is squeezed by the insert block 41 and gradually tightened. At the beginning, the arc surface of the arc block 44 will be squeezed so that the arc block 44 shrinks into the groove 42, and the telescopic spring 43 is tightened. When the groove 42 fits with the card slot 48, the telescopic spring 43 will rebound and drive the arc block 44 to be stuck in the card slot 48. If the stop block 49 is located in the card slot 48, the arc block 44 will squeeze it upwards. The arc block 44 is stuck in the card slot 48 so that the insert block 41 cannot leave the slot 46, thereby preventing the plastic packaging bag 1 from being dispersed again after the ring folding. When the plastic packaging bag 1 needs to be dispersed, the arc block 49 can be pushed into the card slot 48. The bottom of the card block 55 contacts the top of the fixed block 45, so that the card block 49 cannot move downward, which effectively avoids the situation that the arc block 44 is squeezed out of the card slot 48 by the card block 49 due to accidental touch, and the plastic packaging bag 1 is dispersed.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A ring-shaped foldable plastic packaging bag, comprising a plastic packaging bag (1), characterized in that: A handle (2) is fixedly connected to the top of the plastic packaging bag (1), reinforcing ribs (3) are arranged on the inner wall of the plastic packaging bag (1), and a folding and fastening mechanism (4) is arranged at the front end of the plastic packaging bag (1); The folding and locking mechanism (4) comprises an inserting block (41) and a fixing block (45); the inserting block (41) is fixedly connected to the front end of the plastic packaging bag (1); a groove (42) is provided at the top of the inserting block (41); a telescopic spring (43) is arranged inside the groove (42); the groove (42) is slidably connected to an arc block (44) via the telescopic spring (43); a slot (46) is provided at the rear end of the fixing block (45); a compression spring (47) is arranged inside the slot (46); a clamping slot (48) is provided at the top of the slot (46); a stop block (49) is slidably connected inside the clamping slot (48); an anti-mis-touch mechanism (5) is arranged at the top of the stop block (49).

2. The annular foldable plastic packaging bag according to claim 1, characterized in that: The opening size of the slot (46) corresponds to the size of the insert block (41), and the length of the slot (46) is greater than the length of the insert block (41).

3. The annular foldable plastic packaging bag according to claim 2, characterized in that: The opening size of the groove (42) is equal to the opening size of the slot (48), and one third of the top of the arc block (44) is located outside the groove (42) in an initial state.

4. The annular foldable plastic packaging bag according to claim 3, characterized in that: The arc surface of the arc block (44) faces forward, and the length of the arc block (44) is smaller than the depth of the groove (42).

5. The annular foldable plastic packaging bag according to claim 4, characterized in that: The anti-mistouch mechanism (5) includes a through groove (51), and the through groove (51) is opened on the side of the support block (49). The interior of the through groove (51) is fixedly connected to a pneumatic chamber (52). The internal piston at one end of the pneumatic chamber (52) is slidably connected to a pull rod (53), and the internal piston at the other end of the pneumatic chamber (52) is slidably connected to a push rod (54). The end of the push rod (54) away from the pneumatic chamber (52) is fixedly connected to a block (55), and the surface of the push rod (54) is sleeved with a return spring (56).

6. The annular foldable plastic packaging bag according to claim 5, characterized in that: In an initial state, the bottom of the clamping block (55) abuts against the top of the fixing block (45).

7. The annular foldable plastic packaging bag according to claim 6, characterized in that: In the initial state, both ends of the return spring (56) are in contact with the block (55) and the air pressure chamber (52).

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