CN215326044U

CN215326044U - Preservative film is with easily tearing structure

Info

Publication number: CN215326044U
Application number: CN202121239228.8U
Authority: CN
Inventors: 姜庆华
Original assignee: Shandong Honghe Plastics Co ltd
Current assignee: Shandong Honghe Plastics Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2021-12-28
Anticipated expiration: 2031-06-03

Abstract

The utility model relates to the field of articles for daily use, in particular to an easy-to-tear structure for a preservative film, which comprises a box bottom and a box cover and is characterized in that: lid links together through the loose axle that sets up at the lid rear with the box bottom, the forward position department of lid is equipped with the inner chamber, the intracavity is equipped with tailors the sword, the upper end of tailorring the sword runs through the inner chamber and is equipped with and carries the pull assembly, it includes the spout to carry the pull assembly, the spout is fixed to be established in the inner chamber upper end, the inside of spout is equipped with the slider, the inside of spout is equipped with the diaphragm, the internally mounted of diaphragm has the montant, the lower extreme of montant is connected with tailors the sword, compression spring has been cup jointed to the outer wall of montant, the montant is located the outer one end of lid and is equipped with the pull ring, be equipped with the bull stick in the box bottom, the bull stick surface is equipped with the plastic wrap body, one side fixedly connected with rotating assembly of box bottom is run through to bull stick one end, the advantage compared with prior art lies in: the cutting knife is hidden in the inner cavity of the box cover, so that the problem that fingers are scratched in the cutting process is effectively avoided, and the length of the preservative film body is conveniently selected.

Description

Preservative film is with easily tearing structure

Technical Field

The utility model relates to the field of articles for daily use, in particular to an easy-to-tear structure for a preservative film.

Background

The preservative film is a plastic packaging product, is usually prepared by taking ethylene as a master batch through polymerization reaction, is mainly used for occasions such as microwave oven food heating, refrigerator food preservation, fresh and cooked food packaging and the like, and is widely applied to the fields of food packaging of family life, supermarket stores, hotels and restaurants and industrial production. The preservative film is divided into a plurality of types according to different materials and added plasticizers, and can be suitable for different occasions. The preservative film is favored by people due to the characteristics of convenience, economy and beautiful appearance.

The easy-to-tear preservative film sold on the market is generally a box made by matching with the preservative film, the box is generally scrapped when the preservative film is used up, and fingers touch a cutting knife to be cut off in the tearing process, so that the box is hidden danger, the easy-to-tear box prepared for the common preservative film can experience the easy-to-tear experience when the preservative film is used, the fresh-keeping film can be supplemented with a new preservative film after being used up, the method is environment-friendly and economical, the easy-to-tear box can be recycled, and the easy-to-tear box is popular with consumers.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the technical defects and provide a safe easy-tearing structure for the preservative film. In order to solve the technical problems, the technical scheme provided by the utility model is as follows: including box bottom, lid, its characterized in that: the box cover and the box bottom are connected together through a movable shaft arranged behind the box cover, an inner cavity is arranged at the front edge of the box cover, a cutting knife is arranged in the inner cavity, a lifting assembly is arranged at the upper end of the cutting knife and penetrates through the inner cavity and comprises a sliding groove, a sliding block, a transverse plate, a vertical rod, a compression spring and a pull ring, the sliding groove is fixedly arranged at the upper end of the inner cavity, the sliding block is arranged inside the sliding groove, the sliding block is connected with the sliding groove in an overlapping manner, the transverse plate is arranged inside the sliding groove and is connected with the sliding block, the vertical rod is arranged inside the transverse plate, the cutting knife is connected with the lower end of the vertical rod, the compression spring is sleeved on the outer wall of the vertical rod and is connected with the box cover and the transverse plate in an overlapping manner, one end of the vertical rod extends out of the box cover, the pull ring is arranged at the end of the vertical rod outside the box cover, a rotating rod is internally provided with a rotating rod, and the surface of the rotating rod is provided with a preservative film body, one end of the rotating rod penetrates through one side of the box bottom and is fixedly connected with a rotating assembly.

As an improvement, the rotating assembly comprises a rotating disk and a rotating base, the rotating disk is fixedly connected with one end of a rotating rod, the rotating rod extends to one side of the box bottom, the rotating base is provided with one side, located on the rotating disk, of the box bottom, a groove is formed in the rotating base, a protruding shaft is arranged at the shaft center, located on the groove, of the rotating base, the bottom of the rotating disk is rotatably connected to the protruding shaft, a first semicircular positioning hole is formed in the periphery of the groove of the rotating base, a second semicircular positioning hole matched with the first semicircular positioning hole is uniformly formed in the periphery of the rotating disk, and a bolt is arranged in a round hole formed by the first semicircular positioning hole and the second semicircular positioning hole.

As an improvement, the rotating disc is provided with a hand-pulling shaft at the top of the circular ring.

As an improvement, a rubber pad is arranged at the front edge of the box bottom meshed with the cutting knife.

As an improvement, the cutting knife is provided with a saw-toothed knife edge.

As an improvement, the inner wall of the pull ring is provided with a rubber ring.

As an improvement, an arc-shaped groove is formed in the edge of the box cover.

The utility model has the advantages compared with the prior art that:

1. the cutting knife is hidden in the inner cavity of the box cover, so that the problem of scratching fingers in the cutting process is effectively avoided.

2. By arranging the rotating disk and the rotating base, the length of the preservative film body is convenient to select, and the preservative film body is not easy to move randomly and is relatively stable in the cutting process,

3. through setting up and being equipped with the mark on the semicircle locating hole one, can select the length of plastic wrap according to the mark during the use, be difficult for causing the waste of plastic wrap.

Drawings

Fig. 1 is a schematic structural view of an easy-to-tear structure for a plastic wrap according to the present invention.

FIG. 2 is a schematic diagram of a pull assembly of the present invention.

Fig. 3 is a schematic view of the structure of the rotating assembly of the present invention.

FIG. 4 is a schematic view of the structure of the rotating disk of the present invention.

As shown in the figure: the cutting knife comprises a box bottom 1, a box cover 2, a movable shaft 3, a cutting knife 4, a lifting assembly 5, a sliding groove 501, a sliding block 502, a transverse plate 503, a vertical rod 504, a compression spring 505, a pull ring 506, a rotating rod 6, a rotating assembly 7, a rotating disk 701, a rotating base 702, a first semicircular positioning hole 703, a second semicircular positioning hole 704, a bolt 705, a mark 8, a hand-pulling shaft 9, a rubber pad 10, a rubber ring 11 and an arc-shaped groove 12.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

The utility model provides a plastic wrap is with easily tearing structure, includes box bottom 1, lid 2, its characterized in that: the box cover 2 is connected with the box bottom 1 through a movable shaft 3 arranged at the rear of the box cover 2, an inner cavity is arranged at the front edge of the box cover 2, a cutting knife 4 is arranged in the inner cavity, a lifting component 5 is arranged at the upper end of the cutting knife 4 in a way of penetrating through the inner cavity, the lifting component 5 comprises a sliding groove 501, a sliding block 502, a transverse plate 503, a vertical rod 504, a compression spring 505 and a pull ring 506, the sliding groove 501 is fixedly arranged at the upper end of the inner cavity, the sliding block 502 is arranged inside the sliding groove 501, the sliding block 502 is connected with the sliding groove 501 in an overlapping way, the transverse plate 503 is arranged inside the sliding groove 501, the transverse plate 503 is connected with the sliding block 502, the vertical rod 504 is arranged inside the transverse plate 503, the lower end of the vertical rod 504 is connected with the upper end of the cutting knife 4, the compression spring 505 is sleeved on the outer wall of the vertical rod 504, the compression spring 505 is connected with the box cover 2 and the transverse plate 503 in an overlapping way, and one end of the vertical rod 504 extends out of the box cover 2, the end of the vertical rod 504 outside the box cover 2 is provided with a pull ring 506, the box bottom 1 is internally provided with a rotating rod 6, the surface of the rotating rod 6 is provided with a preservative film body, and one end of the rotating rod 6 penetrates through one side of the box bottom 1 and is fixedly connected with a rotating component 7.

The rotating assembly 7 comprises a rotating disk 701 and a rotating base 702, the rotating disk 701 is fixedly connected with one end of a rotating rod 6 extending to one side of the box bottom 1, the rotating base 702 is provided with the box bottom 1 positioned at one side of the rotating disk 701, a groove is formed in the rotating base 702, a protruding shaft is arranged at the shaft center of the rotating base 702 positioned in the groove, the bottom of the rotating disk 701 is rotatably connected to the protruding shaft, a first semicircular positioning hole 703 is formed in the periphery of the groove of the rotating base 702, a second semicircular positioning hole 704 matched with the first semicircular positioning hole 703 is uniformly distributed on the periphery of a circular ring of the rotating disk 701, and a bolt 705 is arranged in a circular hole formed by the first semicircular positioning hole 703 and the second semicircular positioning hole 704.

The upper surface of the first semicircular positioning hole 703 is provided with a mark 8.

The rotating disc 701 is provided with a hand-pulling shaft 9 at the top of the circular ring.

A rubber pad 10 is arranged at the front edge of the box bottom 1 occluded with the cutting knife 4.

The cutting knife 4 is provided with a saw-toothed knife edge.

The inner wall of the pull ring 506 is provided with the rubber ring 11, so that the finger can be conveniently pulled, and the comfort level of the finger pulling process is increased.

The edge of the box cover 2 is provided with an arc-shaped groove 12.

The utility model is implemented as follows: when the preservative film needs to be used, the opening of the preservative film body is pulled by hand to extend out from the front edge of the front end box cover 2, then the preservative film body is pulled by hand, the hand-pulling shaft 9 on the rotating disc 701 is rotated by hand, the preservative film body comes out, the rotating disc 701 is rotated for a revolution according to the length requirement of the preservative film, the mark 8 on the semicircular positioning hole I705 is selected according to the requirement, then when the preservative film body reaches a certain length, the rotating disc 701 stops rotating, the bolt 705 is inserted into the circular holes of the semicircular positioning hole I703 and the semicircular positioning hole II 704, the preservative film body in the box bottom is fixed, then the hand ring 506 is pulled by hand, the cutting knife 4 is driven by the vertical rod 504 to move upwards, the sliding block 502 and the transverse rod 503 in the sliding groove 501 are used for preventing the vertical rod 504 from deviating easily in the pulling process, so that the cutting knife 4 is enabled to translate upwards stably, and then the hand ring 506 is loosened, because the compression spring 505 sleeved on the outer wall of the vertical rod 504 is stressed to contract and then is expanded to push the cutting knife 4 to naturally move downwards, then the cutting knife 4 directly cuts the preservative film body, fingers are effectively prevented from being cut when hands cut manually, meanwhile, a rubber pad 10 is arranged at the front edge of the occlusion of the box bottom 1 and the cutting knife 4, the design is that when the front edge of the cutting knife 4 and the front edge of the box bottom 1 are occluded to cut the preservative film by applying force, the knife edge of the cutting knife 4 and the front edge of the box bottom 1 are given to buffer, the cutting knife 4 is prevented from being worn by hard edge materials, the cutting knife 4 is prevented from being passivated, the cutting knife 4 is provided with a serrated knife edge, the design principle is that when the preservative film is cut, continuous perforation is formed on the surface of the preservative film by utilizing the serrations of the knife edge, the preservative film can be torn off by slight force, and the preservative film is difficult to cut off by adopting a flat-to-cut mode due to large tension and ductility of the preservative film, the preservative film can be easily cut off by adopting the continuous hole checking mode.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a plastic wrap is with easily tearing structure, includes box bottom, lid, its characterized in that: the box cover and the box bottom are connected together through a movable shaft arranged behind the box cover, an inner cavity is arranged at the front edge of the box cover, a cutting knife is arranged in the inner cavity, a lifting assembly is arranged at the upper end of the cutting knife and penetrates through the inner cavity and comprises a sliding groove, a sliding block, a transverse plate, a vertical rod, a compression spring and a pull ring, the sliding groove is fixedly arranged at the upper end of the inner cavity, the sliding block is arranged inside the sliding groove, the sliding block is connected with the sliding groove in an overlapping manner, the transverse plate is arranged inside the sliding groove and is connected with the sliding block, the vertical rod is arranged inside the transverse plate, the cutting knife is connected with the lower end of the vertical rod, the compression spring is sleeved on the outer wall of the vertical rod and is connected with the box cover and the transverse plate in an overlapping manner, one end of the vertical rod extends out of the box cover, the pull ring is arranged at the end of the vertical rod outside the box cover, a rotating rod is internally provided with a rotating rod, and the surface of the rotating rod is provided with a preservative film body, one end of the rotating rod penetrates through one side of the box bottom and is fixedly connected with a rotating assembly.

2. The easy-to-tear structure for plastic wrap of claim 1, wherein: the rotating assembly comprises a rotating disk and a rotating base, the rotating disk is fixedly connected with one end of a rotating rod extending to one side of the box bottom, the rotating base is provided with one side, located on the rotating disk, of the box bottom, a groove is formed in the rotating base, the rotating base is located at the shaft center of the groove and is provided with a protruding shaft, the bottom of the rotating disk is rotatably connected to the protruding shaft, a first semicircular positioning hole is formed in the periphery of the groove, the rotating disk is located at the periphery of a circular ring and is uniformly provided with a second semicircular positioning hole matched with the first semicircular positioning hole, and a bolt is arranged in a round hole formed by the first semicircular positioning hole and the second semicircular positioning hole.

3. The easy-to-tear structure for plastic wrap of claim 2, wherein: the rotating disc is provided with a hand-pulling shaft at the top of the circular ring.

4. The easy-to-tear structure for plastic wrap of claim 1, wherein: a rubber pad is arranged at the front edge of the box bottom meshed with the cutting knife.

5. The easy-to-tear structure for plastic wrap of claim 1, wherein: the cutting knife is provided with a saw-toothed knife edge.

6. The easy-to-tear structure for plastic wrap of claim 1, wherein: and the inner wall of the pull ring is provided with a rubber ring.

7. The easy-to-tear structure for plastic wrap of claim 1, wherein: an arc-shaped groove is formed in the edge of the box cover.