A chestnut opener

Abstract

The utility model relates to the technical field of chestnut opening tool, more particularly to a kind of chestnut opener, including the base of being equipped with limiting portion, opening subassembly, is equipped with the material rack of opening, the material rack is installed in the base, and the opening is located the top of limiting portion, accommodating space is equipped between the opening and the limiting portion, the opening subassembly is rotatably connected with the base, the opening subassembly at least part can pass through the opening and enter the accommodating space.The utility model aims at overcoming the existing manual chestnut opening appliance, which is not conducive to the problem that the blade is separated from the chestnut after opening the chestnut, provides a kind of chestnut opener, can be convenient for the chestnut to be separated from the blade after opening the chestnut, without manually taking down the chestnut again, improves safety.

Description

Technical Field

[0001] This utility model relates to the technical field of chestnut opening tools, and more specifically, to a chestnut opening device. Background Technology

[0002] Chestnuts, also known as sweet chestnuts, are delicious but difficult to peel. Using a specialized chestnut-opening tool can make opening chestnuts much faster and easier. With commonly used manual chestnut-opening tools, there's a frequent problem where the chestnut gets stuck on the blade after being cut open. Removing the chestnut by hand in this situation poses a safety hazard. Utility Model Content

[0003] The purpose of this invention is to overcome the problem that existing manual chestnut opening tools are not conducive to the removal of chestnuts after opening, and to provide a chestnut opening tool that makes it easy for the chestnut to be removed from the blade after opening, eliminating the need to manually remove the chestnut and improving safety.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A chestnut opening device includes a base with a limiting part, an opening assembly, and a stripping rack with an opening. The stripping rack is installed on the base, and the opening is located above the limiting part. A receiving space is provided between the opening and the limiting part. The opening assembly is rotatably connected to the base, and at least part of the opening assembly can pass through the opening and enter the receiving space.

[0006] The limiting part of this invention is used to place the chestnut, forming a limiting position on the chestnut to ensure that the chestnut maintains its original position without changing during the opening process using the opening component. The base provides support and is used to fix the opening component and the unloading rack in place. The opening component is rotatably connected to the base via a rotating shaft. By swinging the opening component, it moves closer to or away from the limiting part. When the opening component is close to the limiting part, part of the opening component passes through the unloading rack and abuts against the chestnut, opening the chestnut. When the opening component moves away from the limiting part, it causes the chestnut to rise. When it reaches the point of contact with the unloading rack, the opening component passes through the opening, and the chestnut is blocked by the unloading rack and separates from the opening component, completing the chestnut opening. Throughout the process, it is not necessary to remove the chestnut by hand, improving the safety and convenience of the chestnut opening operation.

[0007] In this invention, the limiting part can be a groove or a notch to limit the placement of the chestnuts; alternatively, a boss can be first set on the base, and then a groove can be set on the boss to facilitate the placement of the chestnuts. The stripping rack can be detachably connected to the base by bolts to facilitate the processing, installation, disassembly, and replacement of the stripping rack.

[0008] Furthermore, the opening assembly includes a blade and a handle. The blade is rotatably connected to the base, and at least a portion of the blade can pass through the opening into the receiving space. The handle is connected to the blade and located at the end away from the connection between the blade and the base. The handle serves two purposes: firstly, it provides protection to prevent the blade from causing safety hazards during use; secondly, the handle facilitates gripping and applying force. Preferably, anti-slip textures are provided on the handle to increase friction during gripping and prevent slippage. When the blade approaches the limiting part, at least a portion of the blade passes through the stripper and abuts against the chestnut, opening the chestnut. When the blade moves away from the limiting part, it causes the chestnut to rise. Upon reaching the point of contact with the stripper, the blade passes through the opening, and the chestnut, blocked by the stripper, separates from the blade, completing the chestnut opening. Throughout this process, the chestnut does not need to be removed by hand, improving the safety and convenience of the chestnut opening operation.

[0009] Furthermore, the opening assembly also includes a blade arm, which is rotatably connected to the base. The blade is mounted at the bottom of the blade arm and located above the opening, and the handle is mounted at the end of the blade arm away from its connection to the base. By mounting the blade at the bottom of the blade arm, the blade can be synchronously driven to swing relative to the base during the swinging of the blade arm, thereby moving the blade closer to or away from the limiting part. The blade can also be detachably connected to the blade arm by bolts to facilitate timely replacement of the blade after wear. In this invention, the centers of the blade arm, the stripper frame, and the limiting part are arranged in the same vertical plane to facilitate the operation of the swinging blade arm driving the blade to cut an opening in the chestnut.

[0010] Of course, within the knowledge of those skilled in the art, the blade arm can be replaced by a support frame, which is fixedly connected to the base, while the blade is slidably connected to the support frame. The stripper is placed inside the support frame, and the distance between the blade and the limiting part is adjusted by sliding the blade, thereby achieving the effect of opening the chestnut and, after the chestnut opens, using the stripper to separate the blade from the chestnut.

[0011] Furthermore, the opening extends from the top of the stripper rack to both sides. This arrangement facilitates the contact between the blade and the chestnut on the limiting part after the blade passes through the stripper rack, and also facilitates the separation of the chestnut from the blade after the opening.

[0012] Furthermore, both the stripping rack and the opening are U-shaped structures. The opening can be located at the top and middle of the side of the stripping rack, and the U-shaped opening and stripping rack facilitate the swinging of the cutter arm and blade.

[0013] Furthermore, the direction parallel to the cutter arm is defined as the length direction, and the direction perpendicular to the cutter arm is defined as the width direction. The width of the opening is less than the width of the limiting part, and the width of the opening is greater than the width of the blade. The width of the opening is set to allow the blade to pass through while preventing the chestnut from following the blade after entering the opening. When the blade moves to the opening, the chestnut can be blocked by the ejector frame, thus detaching from the blade, achieving the effect of the chestnut automatically detaching from the blade.

[0014] Furthermore, the blade has an arc-shaped bottom. This arc-shaped blade better adapts to the shape of the chestnut, preventing excessive damage to the chestnut kernel when opening it. To the knowledge of those skilled in the art, the blade bottom can also take other shapes.

[0015] Furthermore, the blade has multiple serrations at its bottom. The serrations increase friction between the blade and the chestnut shell, preventing displacement of the blade upon contact with the chestnut, thus facilitating the opening of the chestnut. Within the understanding of those skilled in the art, the serrations can also be replaced with other shapes to increase friction between the blade and the chestnut shell.

[0016] Furthermore, the blade can be either straight or cross-shaped. Both straight and cross-shaped blades can achieve the purpose of opening the chestnut, and the appropriate choice can be made according to the user's needs. A straight blade makes the chestnut opening appear straight; a cross-shaped blade makes the chestnut opening appear cross-shaped.

[0017] Furthermore, the blade is located near the connection end between the blade arm and the base. According to the lever principle, when opening a chestnut, the force acts on the blade arm away from its connection end with the base. Therefore, the closer the blade is to the connection end between the blade arm and the base, the more effort is saved, thus improving the user experience.

[0018] Furthermore, it also includes a limiting screw for limiting the descent height of the cutter arm. The limiting screw is threadedly connected to the base and is located on the stripper frame away from the connection end between the cutter arm and the base, and below the cutter arm. The limiting screw is used to limit the descent of the cutter arm, thereby controlling the distance between the bottom of the blade and the limiting part, and thus controlling the depth of the blade cutting the chestnut. The height of the limiting screw is adjustable, specifically through the threaded connection between the limiting screw and the base. By rotating the limiting screw, the distance between its top and the base can be adjusted.

[0019] The beneficial effects of this utility model are as follows:

[0020] The limiting part of this invention is used to place the chestnut, thus limiting its position and ensuring that the chestnut maintains its original position during the process of opening the chestnut with a blade. The base provides support and is used to fix the mounting blade arm and the stripper frame. The blade arm is rotatably connected to the base via a pivot. By mounting the blade at the bottom of the blade arm, the blade can be oscillating relative to the base during the swinging of the blade arm, causing the blade to move closer to or away from the limiting part. When the blade approaches the limiting part, it passes through the stripper frame and abuts against the chestnut, opening the chestnut. When the blade moves away from the limiting part, it causes the chestnut to rise. When it reaches the point of contact with the stripper frame, the blade passes through the opening, and the chestnut is separated from the blade by the stripper frame, completing the opening of the chestnut. Throughout the process, the chestnut does not need to be removed by hand, improving the safety and convenience of the chestnut opening operation. Attached Figure Description

[0021] Figure 1 This is a structural diagram of a chestnut opening tool according to this utility model.

[0022] Figure 2 This is a partial structural diagram of the first position of a chestnut opening tool according to this utility model.

[0023] Figure 3 This is a partial structural diagram of the second position of a chestnut opening tool according to this utility model.

[0024] The markings in the diagram are explained as follows:

[0025] 1. Base; 11. Limiting part; 2. Blade arm; 3. Blade; 31. Saw tooth; 4. Stripper rack; 41. Opening; 5. Limiting screw; 6. Blade handle. Detailed Implementation

[0026] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0029] Example 1

[0030] like Figures 1 to 3 The present invention is shown in Embodiment 1 of a chestnut opening device, which includes a base 1 with a limiting part 11, an opening assembly, and a material unloading rack 4 with an opening 41. The material unloading rack 4 is installed on the base 1, and the opening 41 is located above the limiting part 11. There is a receiving space between the opening 41 and the limiting part 11. The opening assembly is rotatably connected to the base 1, and at least part of the opening assembly can pass through the opening 41 and enter the receiving space.

[0031] Specifically, the opening assembly includes a blade 3 and a handle 6. The blade 3 is rotatably connected to the base 1, and at least partially, the blade 3 can pass through the opening 41 into the receiving space. The handle 6 is connected to the blade 3 and located at the end away from the end where the blade 3 is connected to the base 1. Furthermore, the opening assembly also includes a blade arm 2, which is rotatably connected to the base 1. The blade 3 is mounted at the bottom of the blade arm 2 and located above the opening 41, and the handle 6 is mounted at the end of the blade arm 2 away from its connection to the base 1.

[0032] The limiting part 11 of this utility model is used to place the chestnut, forming a limiting position on the chestnut to ensure that the chestnut can maintain its original position without changing during the process of opening the chestnut 41 with the blade 3. The base 1 is used to provide support and to fix the mounting blade arm 2 and the stripper frame 4. The blade arm 2 is rotatably connected to the base 1 through a rotating shaft. By mounting the blade 3 at the bottom of the blade arm 2, the blade 3 can be driven to swing relative to the base 1 in sync during the swinging of the blade arm 2, so that the blade 3 moves closer to or away from the limiting part 11. When the blade 3 moves closer to the limiting part 11, the blade 3 passes through the stripper frame 4 and abuts against the chestnut, opening the chestnut 41. When the blade 3 moves away from the limiting part 11, it drives the chestnut to rise. When it reaches the point of abutting against the stripper frame 4, the blade 3 passes through the opening 41. The chestnut is blocked by the stripper frame 4 and separates from the blade 3, completing the opening 41 of the chestnut. Throughout the process, it is not necessary to remove the chestnut by hand, which improves the safety and convenience of the chestnut opening 41 operation. In this invention, the limiting part 11 can be a groove or a notch to limit the placement of the chestnut; alternatively, a boss can be first set on the base 1, and then a groove can be set on the boss to facilitate the placement of the chestnut. The stripping rack 4 can be detachably installed, specifically detachably connected to the base 1 by bolts, to facilitate the processing, installation, disassembly, and replacement of the stripping rack 4. The blade 3 can also be detachably connected to the blade arm 2 by bolts, to facilitate timely replacement of the blade 3 after wear. The blade 3 can be made of spring steel or tool steel to enhance its wear resistance. The combination of the blade arm 2 and the base 1 in this invention resembles the shape of a guillotine. In this invention, the centers of the blade arm 2, the stripping rack 4, and the limiting part 11 are arranged in the same vertical plane, so that the swinging blade arm 2 can drive the blade 3 to cut the opening 41 of the chestnut.

[0033] Of course, within the knowledge of those skilled in the art, the blade arm 2 can be replaced by a support frame, which is fixedly connected to the base 1, while the blade 3 is slidably connected to the support frame. The stripper frame 4 is set inside the support frame, and the distance between the blade 3 and the limiting part 11 is adjusted by sliding the blade 3, thereby achieving the effect of opening the chestnut 41 and using the stripper frame 4 to separate the blade 3 from the chestnut after opening the chestnut 41.

[0034] As an improvement to this embodiment, the opening 41 extends from the top of the unloading rack 4 to both sides of the unloading rack 4. This arrangement facilitates the blade 3 to pass through the unloading rack 4 and contact the chestnut on the limiting part 11, and also facilitates the separation of the chestnut from the blade 3 after the opening 41.

[0035] As an improvement to this embodiment, both the stripping rack 4 and the opening 41 are U-shaped structures. The opening 41 can be located at the top and middle of the side of the stripping rack 4. The U-shaped opening 41 and the stripping rack 4 facilitate the swinging of the cutter arm 2 and the blade 3.

[0036] As an improvement to this embodiment, the direction parallel to the cutter arm 2 is defined as the length direction, and the direction perpendicular to the cutter arm 2 is defined as the width direction. The width of the opening 41 is smaller than the width of the limiting part 11, and the width of the opening 41 is larger than the width of the blade 3. The width of the opening 41 is set so that the blade 3 can pass through, while also preventing the chestnut from following the blade 3 behind the opening 41. When the blade 3 moves to the opening 41, the chestnut can be blocked by the unloading frame 4, thereby detaching from the blade 3, achieving the effect of the chestnut automatically detaching from the blade 3.

[0037] As an improvement in this embodiment, the bottom of the blade 3 has an arc-shaped structure. The arc-shaped blade 3 is easier to adapt to the appearance of the chestnut, which helps to open the chestnut 41 without damaging the chestnut kernel too much.

[0038] As an improvement to this embodiment, the blade 3 is provided with multiple serrations 31 at its bottom. The serrations 31 can increase the friction between the blade 3 and the chestnut shell, prevent the blade 3 from shifting when it comes into contact with the chestnut, and thus facilitate the opening 41 of the chestnut.

[0039] As an improvement to this embodiment, the blade 3 is in the shape of a straight line. The straight-line blade 3 makes the opening 41 of the chestnut also appear in the shape of a straight line.

[0040] As an improvement in this embodiment, the blade 3 is located near the connection end between the blade arm 2 and the base 1. According to the lever principle, when operating the chestnut opening 41, the force acts on the blade arm 2 away from its connection end with the base 1. Therefore, the closer the blade 3 is to the connection end between the blade arm 2 and the base 1, the more effort-saving the effect can be achieved, thus improving the user experience.

[0041] Example 2

[0042] This embodiment is a second embodiment of a chestnut opening tool. This embodiment is similar to embodiment 1, except that the blade 3 is cross-shaped. The cross-shaped blade 3 makes the opening 41 of the chestnut appear cross-shaped.

[0043] Example 3

[0044] This embodiment is another embodiment of a chestnut opening device. This embodiment is similar to embodiment 1, except that it also includes a limiting screw 5 for limiting the descent height of the cutter arm 2. The limiting screw 5 is threadedly connected to the base 1 and is located on the unloading frame 4 away from the connection end between the cutter arm 2 and the base 1 and below the cutter arm 2.

[0045] The limiting screw 5 is used to create a limit when the cutter arm 2 descends, thereby controlling the distance between the bottom of the blade 3 and the limiting part 11, and thus controlling the cutting depth of the blade 3. The height of the limiting screw 5 is adjustable, specifically through a threaded connection between the limiting screw 5 and the base 1. The distance between its top and the base 1 can be adjusted by rotating the limiting screw 5. Within the knowledge of those skilled in the art, the limiting screw 5 can be replaced by other limiting components, such as a combination of a limiting rod and a pin. The limiting height is adjusted by adjusting the relative distance between the top of the limiting rod and the base, and then the pin is used to insert the limiting rod to fix it on the base.

[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A chestnut opening tool, characterized in that, The device includes a base (1) with a limiting part (11), an opening assembly, and a stripping rack (4) with an opening (41). The stripping rack (4) is mounted on the base (1), and the opening (41) is located above the limiting part (11). There is a receiving space between the opening (41) and the limiting part (11). The opening assembly is rotatably connected to the base (1), and the opening assembly can at least partially pass through the opening (41) into the receiving space.

2. The chestnut opening tool according to claim 1, characterized in that, The opening assembly includes a blade (3) and a handle (6). The blade (3) is rotatably connected to the base (1). The blade (3) can at least partially pass through the opening (41) into the receiving space. The handle (6) is connected to the blade (3) and is located away from the end where the blade (3) is connected to the base (1).

3. The chestnut opening tool according to claim 2, characterized in that, The opening assembly also includes a blade arm (2), which is rotatably connected to the base (1). The blade (3) is mounted on the bottom of the blade arm (2) and located above the opening (41). The handle (6) is mounted on the end of the blade arm (2) away from its connection with the base (1).

4. The chestnut opening tool according to any one of claims 1 to 3, characterized in that, The opening (41) extends from the top of the stripper rack (4) to both sides of the stripper rack (4).

5. The chestnut opening tool according to claim 4, characterized in that, Both the unloading rack (4) and the opening (41) are U-shaped structures.

6. The chestnut opening tool according to claim 3, characterized in that, The length direction is defined as the direction parallel to the blade arm (2), and the width direction is defined as the direction perpendicular to the blade arm (2). The width of the opening (41) is less than the width of the limiting part (11), and the width of the opening (41) is greater than the width of the blade (3).

7. The chestnut opening tool according to claim 2, characterized in that, The bottom of the blade (3) has an arc-shaped structure.

8. The chestnut opening tool according to claim 2, characterized in that, The blade (3) has multiple serrations (31) at its bottom.

9. The chestnut opening tool according to claim 2, characterized in that, The blade (3) is either straight or cross-shaped.

10. The chestnut opening tool according to claim 3, characterized in that, It also includes a limiting screw (5) for limiting the descent height of the cutter arm (2), the limiting screw (5) being threadedly connected to the base (1), the limiting screw (5) being located on the stripper frame (4) away from the connection end between the cutter arm (2) and the base (1) and below the cutter arm (2).

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