Degradable plastic tableware

Abstract

The tableware comprises a handle, a fork is arranged at the end of the handle, an opening is formed in the side, close to the handle, of the bottom of the fork, the opening extends towards a plurality of fork rods of the fork to form guide grooves, the bottom of the handle is connected with an elastic extending part, and the elastic extending part extends in the direction deviating from the opening. The end, close to the opening, of the elastic extending part is connected with a movable piece, the shape of the movable piece is matched with the shape formed by combining the multiple guide grooves, and when the movable piece is inserted into the opening, the two sides of the movable piece abut against the side walls of the guide grooves of the fork rods on the two side edges of the fork. The movable piece and the fork jointly form a spoon with a concave area on the surface along with shape deformation of the guide groove, and the elastic extension portion serves as an elastic reset portion after the movable piece is inserted into the opening. The tableware can be switched into the fork or the spoon, switching is convenient, the structure is simple, the tableware can be integrally formed through injection molding, additional parts are not needed, the manufacturing cost is low, the usage amount of degradable plastic can be reduced, and therefore environmental protection is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic tableware, in particular to a degradable plastic tableware. Background Art

[0002] As the takeaway market continues to expand, the use of disposable tableware continues to increase. As people's awareness of environmental protection gradually increases, the use of more and more non-degradable plastics is slowly being restricted, and more and more consumers are willing to use environmentally friendly and degradable tableware.

[0003] Common tableware includes forks and spoons. In the prior art, forks and spoons are generally provided separately. Merchants provide them to users separately or together according to the needs of food. In many cases, forks and spoons are used together, that is, spoons and forks are provided together, which leads to the waste of some materials, which increases the material cost on the one hand, and increases the amount of material used and causes more pollution to the environment on the other hand.

[0004] In order to adapt to the dining situation where a spoon and a fork need to be used together and reduce pollution, tableware that can be used as a spoon and a fork at the same time has appeared in the prior art. For example, CN106805668A discloses a spoon with a fork, which specifically discloses a spoon body, and a fork is provided at the other end of the spoon. This spoon with a fork shares a handle with the fork and the spoon, which reduces the amount of material used and reduces pollution to a certain extent. However, the handle is convenient when it is used. Generally, the user's hand holding position is located at the end of the handle, and the fork and spoon are respectively provided at the two ends of the handle, which makes it inconvenient to hold and affects hygiene. Another example is CN104665466A discloses a plastic spoon, which specifically discloses a spoon handle and a spoon head, and the front end of the spoon head is configured as a fork. If the fork on the front side of this plastic spoon is shorter, it will affect the forking of food, and if the fork on the front side is longer, it will cause interference, making it difficult for the spoon head to scoop up the soup near the bottom of the bowl, so it is still inconvenient to use. Another example is CN208491615U which discloses a knife, fork and spoon combination tableware, comprising a tableware handle body, a storage groove is penetrated on the side wall of the tableware handle body near the upper end, a rotating block is provided in the storage groove, a rotating shaft is penetrated on the rotating block, and the rotating shaft and the rotating block are rotatably connected, both ends of the rotating shaft are fixedly connected to the side wall of the storage groove, a knife is fixedly connected to the side wall of the rotating block, locking mechanisms are provided on both side walls of the tableware handle body, and a spoon is fixedly connected to the lower end of the tableware handle body. The spoon is provided with a cavity inside, the tableware handle is provided with a mounting cavity inside, the mounting cavity is connected to the cavity, the side wall of the tableware handle is provided with a strip groove, and the strip groove is connected to the mounting cavity, a fork is provided in the cavity, a moving block is provided in the mounting cavity, a T-shaped slide groove is provided at the lower end of the moving block, a T-shaped slider is slidably connected in the T-shaped slide groove, a connecting rod is rotatably connected to the T-shaped slider, the end of the connecting rod away from the T-shaped slider is rotatably connected to the fork, and a fixing mechanism is provided on the moving block. This knife, fork, and spoon combination tableware can realize the switching of knife and fork, but its structure is too complicated and the cost is high, and it is not suitable as disposable degradable tableware. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a degradable plastic tableware, which can be used as a fork or a spoon, without interfering with each other during use, easy switching, simple structure, and can be integrally injection molded without additional components. The manufacturing cost is low, and the tableware is suitable for use as disposable degradable plastic tableware, which can save the use of degradable plastics to a certain extent, thereby contributing to environmental protection.

[0006] In order to solve the above technical problems, the present invention is solved through the following technical solutions: a degradable plastic tableware, comprising a handle, a fork is provided at the end of the handle, an opening is provided at the side of the bottom of the fork close to the handle, and guide grooves are extended from the opening to several fork rods of the fork, an elastic extension part is connected to the bottom of the handle, and the elastic extension part extends in a direction deviating from the opening, and one end of the elastic extension part close to the opening is connected to a movable sheet, and the shape of the movable sheet matches the shape formed by the combination of several guide grooves, and when the movable sheet is inserted into the opening, the two sides of the movable sheet abut against the side walls of the guide grooves of the fork rods on both sides of the fork, and the movable sheet is deformed with the shape of the guide groove to form a spoon with a concave area on the surface together with the fork, and the elastic extension part serves as an elastic reset part after the movable sheet is inserted into the opening. This degradable plastic tableware can be switched into a fork or a spoon when the user actively deforms the elastic extension part or the movable sheet is pushed. It can be used as a fork or a spoon without interfering with each other during use. The switching is convenient and the structure is simple. It can be formed by one-piece injection molding without additional parts and has a low manufacturing cost. It is suitable for use as disposable degradable plastic tableware and can save the use of degradable plastics to a certain extent, thereby contributing to environmental protection.

[0007] In the above technical solution, preferably, the middle of any guide groove is lower than the arcs on both sides, and the movable piece is in an arc shape matching the shape of the guide groove. With this structure, the middle of the movable piece is concave downward, further forming a deeper concave area, so that more soup can be held when used as a spoon.

[0008] In the above technical solution, preferably, the guide grooves on the fork rods on both sides of the fork are curved grooves that bend upward from the inner side of the fork to the outer side, and the side edges of the movable piece are curved folds that match the curved grooves. This structure ensures that the folds move in the curved grooves, guiding and limiting the sliding direction of the movable piece, and forms a fence to prevent soup leakage.

[0009] In the above technical solution, preferably, the elastic extension part extends from the handle near the fork in the direction away from the opening, and the elastic extension part is bent to form an elastic reset part protruding in the direction away from the opening. When the movable piece is inserted into the opening, the front end of the movable piece can be pushed by the thrust to automatically move backward so that the tableware can be used as a fork. When the front end of the movable piece loses the thrust, the elastic reset part pushes the movable piece to reset so that the tableware can be used as a spoon. When this kind of degradable plastic tableware needs to pick up food, during the process of fork insertion, the movable piece is automatically moved backward by the thrust of the food, and the food can be picked up conveniently. After the forking is completed, due to the elastic force of the elastic reset part, the movable piece automatically resets to the initial position, and can be used as a spoon in the initial position. The switching between fork and spoon can be realized automatically, and the structure is simple and easy to process.

[0010] In the above technical solution, preferably, the elastic extension portion extends from the handle away from the fork toward the direction close to the opening, and the handle is in an upwardly protruding bent shape. When the movable piece is inserted into the opening, the elastic extension portion straightens, and the movable piece is inserted into the guide groove to form a spoon with a recessed area on the surface together with the fork. The elastic extension portion can be squeezed upward to fit the bent handle to pull a part of the movable piece out of the opening so that the tableware can be used as a fork. When the elastic extension portion loses the squeezing force, the elastic extension portion acts as an elastic reset portion to push the movable piece back to the guide groove. In the initial state of this degradable plastic tableware, the movable piece is inserted into the guide groove and together with the fork forms a spoon with a recessed area on the surface. When it is necessary to fork food, the elastic extension part is pressed upward to fit the handle. Since the handle is bent, the elastic extension part is bent. At this time, the movable piece is pulled out of the opening partially and can be used as a fork. After the upward pressing of the elastic extension part stops, the elastic extension part is reset, and the movable piece moves into the opening, and the tableware can be used as a spoon again. This switching method can be conveniently achieved during the dining process by whether to press the elastic extension part. It is very convenient to operate, does not interfere with each other during use, is easy to switch, and has a simple structure and easy processing.

[0011] In the above technical solution, preferably, the elastic extension portion extends from the handle away from the fork toward the direction close to the opening, the handle is a straight rod, and the elastic extension portion is in a bent shape that is convex in the direction away from the handle. When the movable piece is inserted into the opening and the elastic extension portion is squeezed upward to fit the handle, the movable piece is inserted into the guide groove and together with the fork forms a spoon with a recessed area on the surface. When the elastic extension portion loses the squeezing force, the elastic extension portion acts as an elastic reset portion to pull a portion of the movable piece out of the opening so that the tableware can be used as a fork. When this degradable plastic tableware needs to be used as a spoon, the elastic extension part is pressed upward to fit the handle, and the movable piece is inserted into the guide groove to form a spoon with a concave area on the surface together with the fork. When it is necessary to fork food, the elastic extension part is stopped from being pressed upward, and the elastic extension part is reset. At this time, the movable piece is partially pulled out from the opening and can be used as a fork. This switching method can be easily achieved during the dining process by pressing the elastic extension part. It is very convenient to operate, does not interfere with each other during use, is easy to switch, and has a simple structure and is easy to process.

[0012] In the above technical solution, preferably, the opening is gradually reduced along the insertion direction of the movable sheet, and a blocking strip matching the shape of the opening is provided on the movable sheet, and when the movable sheet and the fork form a spoon, the blocking strip is tightly fitted with the opening to block the opening. With this structure, when the tableware is used as a spoon, the blocking strip can block the opening to prevent soup leakage.

[0013] In the above technical solution, preferably, the tableware is made of a degradable plastic selected from the group consisting of polylactic acid, polybutylene succinate, copolymer of butylene adipate and butylene terephthalate, polyglycolic acid and polyvinyl alcohol by integral injection molding. These degradable plastics are suitable for injection molding, are non-toxic, and have good degradation effects, and are suitable for processing into disposable tableware.

[0014] The processing method of the above-mentioned degradable plastic tableware comprises the following steps: 1) integrally forming the handle, the fork, the elastic extension part and the movable piece by injection molding; 2) inserting the movable piece into the opening. Thanks to the structure of the above-mentioned degradable plastic tableware, the tableware can be integrally formed by injection molding, and then the movable piece is inserted into the opening to make the tableware have the function of switching between forks and spoons. The processing method is simple, with few steps and low cost.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the degradable plastic tableware can be switched into a fork or a spoon when the user actively deforms the elastic extension part or the movable sheet is pushed. It can be used as a fork or a spoon without interfering with each other during use. The switching is convenient, the structure is simple, it can be integrally injection molded, there are no additional parts, the manufacturing cost is low, it is suitable for use as disposable degradable plastic tableware, and it can save the use of degradable plastics to a certain extent, thereby contributing to environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present invention.

[0017] Figure 2 It is a schematic diagram of the partial cross-sectional structure of Example 1 of the present invention when used as a spoon.

[0018] Figure 3 It is a schematic diagram of the partial cross-sectional structure when the movable sheet is not inserted into the opening according to the first embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the natural state of Example 2 of the present invention.

[0020] Figure 5 It is a schematic diagram of the structure when the elastic extension part of Example 2 of the present invention is pressed.

[0021] Figure 6 It is a schematic diagram of the partial cross-sectional structure when the movable sheet of Example 2 of the present invention is not inserted into the opening.

[0022] Figure 7 This is a schematic diagram of the structure of the natural state of Example 3 of the present invention.

[0023] Figure 8 This is a schematic diagram of the structure when the elastic extension part of Example 3 of the present invention is pressed.

[0024] Fig. 9 It is a schematic diagram of the partial cross-sectional structure when the movable sheet of Example 3 of the present invention is not inserted into the opening. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figures 1 to 3Embodiment 1, a degradable plastic tableware, comprising a handle 1, a fork 2 is provided at the end of the handle 1, an opening 3 is provided at the side of the bottom of the fork 2 close to the handle 1, and guide grooves 4 are extended from the opening 3 to the multiple fork rods of the fork 2. An elastic extension part 5 is connected to the bottom of the handle 1, and the elastic extension part 5 extends in a direction deviating from the opening 3. The end of the elastic extension part 5 close to the opening 3 is connected to a movable sheet 6, and the shape of the movable sheet 6 matches the shape formed by the combination of the multiple guide grooves 4. When the movable sheet 6 is inserted into the opening 3, the two sides of the movable sheet 6 abut against the side walls of the guide grooves 4 of the fork rods on both sides of the fork 2. The movable sheet 6 deforms with the shape of the guide groove 4 and forms a spoon with a concave area on the surface together with the fork 2. After the movable sheet 6 is inserted into the opening 3, the elastic extension part 5 serves as an elastic reset part. This degradable plastic tableware can be switched into a fork 2 or a spoon when the user actively deforms the elastic extension part 5 or the movable sheet 6 is pushed. It can be used as a fork 2 and also as a spoon without interfering with each other during use. The switching is convenient and the structure is simple. It can be integrally injection molded without additional parts and has a low manufacturing cost. It is suitable for use as disposable degradable plastic tableware and can save the use of degradable plastics to a certain extent, thereby contributing to environmental protection.

[0026] In this embodiment, the elastic extension part 5 extends from the handle 1 near the fork 2 in the direction away from the opening 3, and the elastic extension part 5 is bent to form an elastic reset part protruding in the direction away from the opening 3. When the movable piece 6 is inserted into the opening 3, the front end of the movable piece 6 can be pushed by the thrust to automatically move backward so that the tableware can be used as a fork 2. When the front end of the movable piece 6 loses the thrust, the elastic reset part pushes the movable piece 6 to reset so that the tableware can be used as a spoon. When this degradable plastic tableware needs to pick up food, during the insertion of the fork 2, the movable piece 6 automatically moves backward under the thrust of the food, and the food can be picked up conveniently. After the forking is completed, due to the elastic force of the elastic reset part, the movable piece 6 automatically resets to the initial position, and can be used as a spoon at the initial position. The switching between the fork 2 and the spoon can be realized automatically, and the structure is simple and easy to process.

[0027] In this embodiment, the middle of any guide groove 4 is lower than the arcs on both sides, and the movable piece 6 is in an arc shape matching the shape of the guide groove 4. With this structure, the middle of the movable piece 6 is concave downward, further forming a deeper concave area, so that more soup can be held when used as a spoon.

[0028] In this embodiment, the guide grooves 4 on the fork rods on both sides of the fork 2 are curved grooves that bend upward from the inner side of the fork 2 to the outer side, and the side edges of the movable sheet 6 are curved folded edges 7 that match the curved grooves. This structure ensures that the folded edges 7 move in the curved grooves, guiding and limiting the sliding direction of the movable sheet 6, and forms a fence to prevent soup leakage.

[0029] In this embodiment, the opening 3 gradually decreases along the insertion direction of the movable sheet 6, and a blocking strip 8 matching the shape of the opening 3 is provided on the movable sheet 6. When the movable sheet 6 and the fork 2 form a spoon, the blocking strip 8 is tightly fitted with the opening 3 to block the opening 3. With this structure, when the tableware is used as a spoon, the blocking strip 8 can block the opening 3 to prevent soup leakage.

[0030] In this embodiment, the tableware is made of a degradable plastic selected from polylactic acid, polybutylene succinate, copolymer of butylene adipate and butylene terephthalate, polyglycolic acid and polyvinyl alcohol by integral injection molding. These degradable plastics are suitable for injection molding, are non-toxic, and have good degradation effects, and are suitable for processing into disposable tableware.

[0031] See also Figures 4 to 6 , Embodiment 2, Embodiment 2 differs from Embodiment 1 only in that the structures and connection methods of the handle 1 and the elastic extension 5 are different. In this embodiment, the elastic extension 5 extends from the handle 1 away from the fork 2 toward the direction close to the opening 3, and the handle 1 is in an upwardly convex bending shape. When the movable piece 6 is inserted into the opening 3, the elastic extension 5 is straightened, and the movable piece 6 is inserted into the guide groove 4 and forms a spoon with a concave area on the surface together with the fork 2. The elastic extension 5 can be squeezed upward to fit the bent handle 1 to pull a part of the movable piece 6 out of the opening 3 so that the tableware can be used as a fork 2. When the elastic extension 5 loses its squeezing force, the elastic extension 5 acts as an elastic reset part to push the movable piece 6 back to the guide groove 4. In the initial state of this degradable plastic tableware, the movable piece 6 is inserted into the guide groove 4 and forms a spoon with a concave area on the surface together with the fork 2. When it is necessary to fork food, the elastic extension part 5 is pressed upward to fit the handle 1. Since the handle 1 is bent, the elastic extension part 5 is bent. At this time, the movable piece 6 is partially pulled out from the opening 3 and can be used as a fork 2. After the elastic extension part 5 stops being pressed upward, the elastic extension part 5 is reset, and the movable piece 6 moves into the opening 3, and the tableware can be used as a spoon again. This switching method can be conveniently achieved by pressing the elastic extension part 5 during the dining process. It is very convenient to operate, does not interfere with each other during use, is easy to switch, and has a simple structure and easy processing.

[0032] See also Figures 7 to 9, Embodiment 3, Embodiment 3 differs from Embodiment 1 only in that the structures and connection methods of the handle 1 and the elastic extension 5 are different. In this embodiment, the elastic extension 5 extends from the handle 1 away from the fork 2 toward the direction close to the opening 3, the handle 1 is a straight rod, and the elastic extension 5 is a bent shape that bulges away from the handle 1. When the movable sheet 6 is inserted into the opening 3 and the elastic extension 5 is pressed upward to fit the handle 1, the movable sheet 6 is inserted into the guide groove 4 and forms a spoon with a concave area on the surface together with the fork 2. When the elastic extension 5 loses its squeezing force, the elastic extension 5 acts as an elastic reset portion to pull a part of the movable sheet 6 out of the opening 3 so that the tableware can be used as a fork 2. When this degradable plastic tableware needs to be used as a spoon, the elastic extension part 5 is pressed upward to fit the handle 1, and the movable piece 6 is inserted into the guide groove 4 to form a spoon with a concave area on the surface together with the fork 2. When it is necessary to fork food, the elastic extension part 5 is stopped from being pressed upward, and the elastic extension part 5 is reset. At this time, the movable piece 6 is partially pulled out from the opening 3, and it can be used as the fork 2. This switching method can be conveniently achieved during the dining process by whether to press the elastic extension part 5. It is very convenient to operate, does not interfere with each other during use, is easy to switch, and has a simple structure and is easy to process.

[0033] The processing method of the degradable plastic tableware in each of the above embodiments comprises the following steps: 1) integrally forming the handle 1, the fork 2, the elastic extension 5 and the movable sheet 6 by injection molding: processing the corresponding mold, using one of polylactic acid, polybutylene succinate, a copolymer of butylene adipate and butylene terephthalate, polyglycolic acid and polyvinyl alcohol as a raw material for injection molding, and taking out the plastic tableware after the injection molding is completed. Figure 3 , Figure 6 and Fig. 9 2) Then insert the movable piece 6 into the opening 3 to obtain a disposable tableware with a spoon and a fork that can be switched. Of course, step 2) can also be operated by the user. Figure 3 , Figure 6 and Fig. 9 Thanks to the structure of the degradable plastic tableware in the above embodiments, the tableware can be integrally injection molded, and then the movable piece 6 is inserted into the opening 3 to make the tableware have the function of switching the fork 2 or the spoon. The processing method is simple, the steps are few, and the cost is low.

[0034] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A degradable plastic tableware, comprising a handle (1), wherein a fork (2) is provided at the end of the handle (1), characterized in that: An opening (3) is provided on one side of the bottom of the fork (2) close to the handle (1), and guide grooves (4) are extended from the opening (3) to the plurality of fork rods of the fork (2). An elastic extension part (5) is connected to the bottom of the handle (1), and the elastic extension part (5) extends in a direction deviating from the opening (3). One end of the elastic extension part (5) close to the opening (3) is connected to a movable sheet (6), and the shape of the movable sheet (6) matches the shape formed by the combination of the plurality of guide grooves (4). When the movable sheet (6) is inserted into the opening (3), the two sides of the movable sheet (6) abut against the side walls of the guide grooves (4) of the fork rods on the two sides of the fork (2). The movable sheet (6) deforms with the shape of the guide grooves (4) and forms a spoon with a concave area on the surface together with the fork (2). After the movable sheet (6) is inserted into the opening (3), the elastic extension part (5) serves as an elastic reset part.

2. The degradable plastic tableware according to claim 1, characterized in that: The middle portion of any of the guide grooves (4) is lower than the arcs on both sides, and the movable sheet (6) is in an arc shape that matches the shape of the guide groove (4).

3. The degradable plastic tableware according to claim 1, characterized in that: The guide grooves (4) on the fork rods on both sides of the fork (2) are curved grooves that bend upward from the inside to the outside of the fork (2), and the side edges of the movable sheet (6) are curved folds (7) that match the curved grooves.

4. The degradable plastic tableware according to claim 1, characterized in that: The elastic extension portion (5) extends from the handle (1) near the fork (2) in a direction away from the opening (3); the elastic extension portion (5) is bent to form an elastic reset portion protruding in a direction away from the opening (3); when the movable piece (6) is inserted into the opening (3), the front end of the movable piece (6) can be pushed by a thrust force to automatically move backwards so that the tableware can be used as a fork (2); when the front end of the movable piece (6) loses the thrust force, the elastic reset portion pushes the movable piece (6) to reset so that the tableware can be used as a spoon.

5. The degradable plastic tableware according to claim 1, characterized in that: The elastic extension part (5) extends from the handle (1) away from the fork (2) in a direction close to the opening (3); the handle (1) is in a bent shape that bulges upward; when the movable sheet (6) is inserted into the opening (3), the elastic extension part (5) is straightened, and the movable sheet (6) is inserted into the guide groove (4) and together with the fork (2) forms a spoon with a concave area on the surface; the elastic extension part (5) can be pressed upward to fit the bent handle (1) to pull a part of the movable sheet (6) out of the opening (3) so that the tableware can be used as a fork (2); when the elastic extension part (5) loses its squeezing force, the elastic extension part (5) acts as an elastic reset part to push the movable sheet (6) back to the guide groove (4).

6. The degradable plastic tableware according to claim 1, characterized in that: The elastic extension part (5) extends from the handle (1) away from the fork (2) in a direction close to the opening (3); the handle (1) is a straight rod; the elastic extension part (5) is in a bent shape that is convex in a direction away from the handle (1); when the movable sheet (6) is inserted into the opening (3) and the elastic extension part (5) is pressed upward to fit the handle (1), the movable sheet (6) is inserted into the guide groove (4) and together with the fork (2) forms a spoon with a concave area on the surface; when the elastic extension part (5) loses its squeezing force, the elastic extension part (5) acts as an elastic reset part to pull a part of the movable sheet (6) out of the opening (3) so that the tableware can be used as a fork (2).

7. A degradable plastic tableware according to any one of claims 1 to 6, characterized in that: The opening (3) gradually decreases along the insertion direction of the movable sheet (6); a sealing strip (8) matching the shape of the opening (3) is provided on the movable sheet (6); when the movable sheet (6) and the fork (2) form a spoon, the sealing strip (8) and the opening (3) are tightly fitted to seal the opening (3).

8. The degradable plastic tableware according to any one of claims 1 to 6, characterized in that: The tableware is made of a copolymer of polylactic acid, polybutylene succinate, polybutylene adipate and polybutylene terephthalate, polyglycolic acid and a degradable plastic selected from polyvinyl alcohol by integral injection molding.

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