A biodegradable disposable knife

Abstract

The utility model relates to the field of disposable tableware, and discloses a degradable disposable knife, including a handle, a knife edge is fixedly connected to the right side wall of the handle, a plurality of groups of saw teeth are provided along the outer edge track at the outer edge of the knife edge, a groove is provided on the front outer wall of the handle and the knife edge, the handle includes a paper base layer, a rubber strip is fixedly connected to the outer wall of the handle, the bottom end of the rubber strip is fixedly connected to the inner wall of the groove, the outer edge of the knife edge is arranged in an arc shape, the track of the saw teeth is consistent with the track of the outer edge of the knife edge, the outer edge of the groove is the same as the shape of the handle and the knife edge, and a polycaprolactone layer is fixedly connected to the center of the inner wall of the paper base layer. In the utility model, by providing polycaprolactone, the overall strength can be effectively improved, so that it can cut some foods with higher hardness, such as fruits, and the bending deformation of the disposable knife can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of disposable tableware, in particular to a degradable disposable knife. Background Art

[0002] Paper-based disposable knives are usually made of thick cardboard or paper material that has been specially treated to increase its strength and water resistance. This type of disposable knife is able to decompose naturally after a short period of use and has a lower impact on the environment. They are often used for simple cutting tasks, such as in fast food restaurants, takeaways or picnics.

[0003] Existing disposable knives are usually paper-based. Although paper-based has the advantages of being biodegradable and environmentally friendly, it has low strength. Most of them can only cut foods such as cakes, but cannot cut foods with higher hardness such as fruits. In addition, the knife is prone to bending during the cutting process, causing damage to the knife and making it impossible to restore it. In view of this, we propose a biodegradable disposable knife. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a degradable disposable knife, aiming to improve the problem of low strength of disposable knives in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a degradable disposable knife, comprising a handle, a blade is fixedly connected to the right side wall of the handle, a plurality of groups of saw teeth are provided at the outer edge of the blade along the outer edge trajectory, a groove is provided on the front outer wall of the handle and the blade, the handle comprises a paper base layer, a polycaprolactone layer is fixedly connected to the center of the inner wall of the paper base layer, a rubber strip is fixedly connected to the outer wall of the handle, and the bottom end of the rubber strip is fixedly connected to the inner wall of the groove.

[0006] As a further description of the above technical solution:

[0007] The outer edge of the blade is arranged in an arc shape.

[0008] As a further description of the above technical solution:

[0009] The trajectory of the saw teeth is consistent with the trajectory of the outer edge of the blade.

[0010] As a further description of the above technical solution:

[0011] The outer edge of the groove is generally the same shape as the knife handle and the knife edge.

[0012] As a further description of the above technical solution:

[0013] The rubber strips are respectively connected to the groove and the knife handle, and are distributed along the outer edge of the groove.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the present invention, by providing polycaprolactone, the overall strength can be effectively improved, so that it can cut some foods with higher hardness, such as fruits, and the bending and deformation of disposable knives can be reduced.

[0016] 2. In the utility model, by providing a rubber strip, the device has a certain ability to resist bending and recover. After bending during cutting, it can also provide a certain toughness so that it can recover to a certain extent, greatly increasing the service life of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall schematic diagram of a degradable disposable knife proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of a polycaprolactone layer of a degradable disposable knife proposed by the utility model.

[0019] Legend:

[0020] 1. Knife handle; 2. Rubber strip; 3. Serrations; 4. Knife edge; 5. Grooves; 101. Polycaprolactone; 102. Paper base layer. DETAILED DESCRIPTION

[0021] 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 in 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.

[0022] Reference Figure 1-Figure 2The utility model provides an embodiment: a biodegradable disposable knife, including a handle 1, a blade 4 is fixedly connected to the right side wall of the handle 1, the outer edge of the blade 4 is arranged in an arc shape, the connection between the blade 4 and the handle 1 is integrally formed, a plurality of groups of saw teeth 3 are provided at the outer edge of the blade 4 along the outer edge track, the entire blade 4 and the saw teeth 3 are integrally formed, the track of the saw teeth 3 is consistent with the track of the outer edge of the blade 4, the outer edge of the blade 4 is provided in a sawtooth shape, so that when rubbing the corresponding food, it can play a role in cutting food, the handle 1 and the blade 4 are integrally formed. A groove 5 is provided on the front outer wall, and the outer edge of the groove 5 is the same shape as the handle 1 and the blade 4. The handle 1 includes a paper base layer 102, and a polycaprolactone layer 101 is fixedly connected to the center of the inner wall of the paper base layer 102. Polycaprolactone is a polymer synthetic material with excellent strength and rigidity. Its strength is more than 5 times that of ordinary rubber. At the same time, it can be decomposed into harmless substances under certain conditions, has good degradability and certain toughness, and can improve the strength of the overall disposable knife to avoid bending due to force during cutting.

[0023] Furthermore, a rubber strip 2 is fixedly connected to the outer wall of the handle 1, and the bottom end of the rubber strip 2 is fixedly connected to the inner wall of the groove 5. The rubber strip 2 connects the groove 5 and the handle 1 respectively, and is distributed along the outer edge of the groove 5, which can further improve the overall strength and provide a certain toughness so that it can recover after a certain bending. The rubber strip 2 combines a degradable polymer with a rubber material, and is a degradable rubber composite material. This composite material has good elasticity and durability, and can be degraded by the natural environment after use.

[0024] Working principle: Fruits and other items are cut by the saw teeth 3, and the polycaprolactone layer 101 can greatly improve the overall strength, so that it can avoid bending during cutting to a certain extent. At the same time, when bending occurs, the rubber strip 2 can also make the whole have a certain toughness, and can be quickly restored in case of deformation. At the same time, the whole is degradable and more environmentally friendly.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A biodegradable disposable knife, comprising a handle (1), characterized in that: A blade (4) is fixedly connected to the right side wall of the knife handle (1); a plurality of groups of saw teeth (3) are provided at the outer edge of the blade (4) along the outer edge track; a groove (5) is provided on the front outer wall of the knife handle (1) and the blade (4); the knife handle (1) comprises a paper base layer (102); a polycaprolactone layer (101) is fixedly connected to the center of the inner wall of the paper base layer (102); a rubber strip (2) is fixedly connected to the outer wall of the knife handle (1); and the bottom end of the rubber strip (2) is fixedly connected to the inner wall of the groove (5).

2. A biodegradable disposable knife according to claim 1, characterized in that: The outer edge of the knife edge (4) is arranged in an arc shape.

3. The biodegradable disposable knife according to claim 1, characterized in that: The trajectory of the saw teeth (3) is consistent with the trajectory of the outer edge of the blade (4).

4. The biodegradable disposable knife according to claim 1, characterized in that: The outer edge of the groove (5) is generally the same shape as the knife handle (1) and the knife edge (4).

5. The biodegradable disposable knife according to claim 1, characterized in that: The rubber strips (2) respectively connect the groove (5) and the knife handle (1), and are distributed along the outer edge of the groove (5).

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