A nut clamping device

Abstract

A nut clamping device according to the present invention includes a clamping body, which comprises a first clamping body, a second clamping body, a handle and a grip arranged in sequence. The tops of the first clamping body, the handle and the grip are connected by an upper fixing plate, and the bottoms of the first clamping body, the second clamping body and the grip are connected by a lower fixing plate. The bottom of the second clamping body is hinged to the lower fixing plate and forms an included angle with the first clamping body to form a nut groove. A bearing is arranged between the top of the second clamping body and the top of the handle. The top of the handle is an eccentric part, and the eccentric part is hinged to the upper fixing plate through an eccentric wheel shaft. The top of the second clamping body and the bearing are both fixed on a moving plate. Thus, pulling the handle can push the top of the second clamping body to rotate through the bearing, reducing the included angle between the second clamping body and the first clamping body to break the nut. The present invention has high versatility and is applicable to various nuts of different sizes. Moreover, the structure of the present invention is labor-saving and can protect the hands.

Description

Technical Field

[0001] The present invention relates to the technical field of nutcrackers, and in particular to a nut clamping device. Background Art

[0002] Nuts that can be eaten daily include walnuts, pecans, macadamia nuts, peach kernels, almonds, pine nuts, watermelon seeds, etc. Their shapes are mostly spherical or oblate. The large ones have a diameter of more than 30 mm, and the small ones have a diameter of 6 - 7 mm. The thickness of the shells of most nuts is not uniform. Generally, they are composed of two halves. The joint of the two halves is the shoulder, where the thickness is thicker, and the rest is the abdomen with a thinner thickness. Macadamia nuts are wrapped in a hard shell with a relatively large thickness. Since the nut peel is hard, people usually need to use a nutcracker when eating nuts. After using a nutcracker, it is easy to open the nuts, making it more convenient to eat nuts. However, the nut clamping devices in the current prior art have the following defects:

[0003] (1) Currently, most nutcrackers are designed with relatively single functions. The clamping mouth of one nutcracker is only suitable for nuts of one size. There are also a few nutcrackers that use two or three clamping mouths to solve this problem. For example, a nutcracker disclosed in Chinese Patent CN104337419A uses two clamping mouths and can only adapt to these two sizes of nuts, so the applicable range is still very limited.

[0004] (2) Currently, most nutcrackers are structured by two handles hinged together. Using the lever principle, the pressing force of the human hand is used to crack the nuts. People need to use a relatively large amount of force when using them, and the stroke of such nutcrackers is relatively large, making it easy to get hand injuries and extremely inconvenient to use. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above deficiencies and provide a nut clamping device that can adapt to the sizes of various nuts and is safe and labor-saving.

[0006] The purpose of the present invention is achieved as follows:

[0007] A nut clamping device includes a clamping body. The clamping body includes a first clamping body, a second clamping body, a handle, and a grip arranged in sequence. The tops of the first clamping body, the handle, and the grip are connected by an upper fixing plate, and the bottoms of the first clamping body, the second clamping body, and the grip are connected by a lower fixing plate. The bottom of the second clamping body is hinged to the lower fixing plate and forms an angle with the first clamping body to form a nut groove. There is a bearing between the top of the second clamping body and the top of the handle. The top of the handle is an eccentric part, and the eccentric part is hinged to the upper fixing plate through an eccentric wheel shaft. The top of the second clamping body and the bearing are both fixed on a moving plate. Thus, pulling the handle makes the bearing be pushed by the eccentric part to rotate the top of the second clamping body, reducing the angle between the second clamping body and the first clamping body to crack the nut.

[0008] Further, the first clamping body includes an upper connecting section, an arc section, a main clamping rod, and a lower connecting section that are integrally formed from top to bottom. The top of the main clamping rod is connected to the upper connecting section through the arc section, and the bottom of the main clamping rod is connected to the lower connecting section. The middle part of the second clamping body is a secondary clamping rod. The handle includes an upper fixing section, a handle section, a crossbar section, and a lower fixing section that are integrally formed from top to bottom.

[0009] Further, the upper connecting section of the first clamping body, the eccentric wheel shaft of the handle, and the upper fixing section of the handle are all fixed on the upper fixing plate, and the lower connecting section of the first clamping body and the lower fixing section of the handle are all fixed on the lower fixing plate.

[0010] Further, a recessed limiting platform is provided on one side of the top of the second clamping body close to the first clamping body, and an extending support plate is provided on the other side. The moving plate is arranged below the upper fixing plate. The recess of the limiting platform is arranged below the upper connecting section of the first clamping body, and the extending support plate is higher than the bottom edge of the upper connecting section, thereby limiting the stroke of the moving plate, that is, the stroke of the handle rotation.

[0011] Further, a first connecting hole is provided on one side of the top of the secondary clamping rod close to the handle. A groove is provided on the upper part of the handle, and a second connecting hole is provided near the groove of the handle. An elastic component is provided between the first connecting hole and the second connecting hole to connect the second clamping body and the handle.

[0012] Further, a bent strengthening and fixing part is provided at the bottom of the second clamping body. The strengthening and fixing part of the second clamping body is hinged to the lower fixing plate through a rotating shaft.

[0013] Further, the top of the handle section is connected to the upper fixing section that bends towards the handle, the bottom of the handle section is connected to the crossbar section that bends towards the handle, and an upward-bent lower fixing section is provided at the end of the crossbar section.

[0014] Further, a moving plate is riveted to the front and back of the top of the second clamping body respectively. A bearing is installed at the front end of the moving plate, and the bearing is in contact with the eccentric part of the handle. The side of the eccentric part close to the bearing is made smooth for the bearing to rotate.

[0015] Further, the side of the top of the second clamping body close to the first clamping body is in smooth transition with the arc section of the first clamping body to form a semi-circular clamping opening. Therefore, the upper part of the nut groove is a semi-circular clamping opening.

[0016] Further, sawteeth are provided on the opposite sides of the main clamping rod and the secondary clamping rod, which is more conducive to cracking nuts.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The present invention consists of a first clamp body and a second clamp body to form a V-shaped nut groove, where the spacing from top to bottom in the groove gradually decreases, suitable for various nuts of different sizes, with a wider application range and strong practicability; at the top of the handle of the present invention, an eccentric wheel is provided to drive the second clamp body to rotate through a bearing, converting the tension force used by the fingers and palm into the clamping force between the first clamp body and the second clamp body. A smaller stroke can break the shell without affecting the pulp, saving time and effort and having a large enough breaking force, while also avoiding the risk of pinching the hand; when in use, place the nut in the nut groove, find a suitable angle to break it, and it can achieve automatic reset after the shell-breaking is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the external structure of the present invention.

[0020] Figure 2 is a schematic diagram of the structure of the clamp body of the present invention.

[0021] Figure 3 is an internal schematic diagram of the present invention before gripping the handle.

[0022] Figure 4 is an internal schematic diagram of the present invention after gripping the handle.

[0023] Wherein:

[0024] clamp body 1, first clamp body 2, upper connecting section 21, arc section 22, main clamp rod 23, lower connecting section 24, second clamp body 3, sub-clamp rod 31, limit platform 32, extension support plate 33, first connecting hole 34, strengthening and fixing part 35, handle 4, eccentric part 41, eccentric wheel shaft 42, groove 43, second connecting hole 44, hook 45, grip 5, upper fixing section 51, handle section 52, cross bar section 53, lower fixing section 54, bearing 6, elastic component 7, upper fixing plate 8, lower fixing plate 9, moving plate 10, nut groove 11, outer shell body 12, protective cover 13. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To better understand the technical solution of the present invention, the following will be described in detail in conjunction with relevant drawings. It should be understood that the following specific embodiments are not intended to limit the specific implementation modes of the technical solution of the present invention, and they are only implementation modes that the technical solution of the present invention can adopt. It should be noted first that the description of the positional relationship of each component herein, such as component A is located above component B, is based on the relative positions of each component in the drawings and is not intended to limit the actual positional relationship of each component.

[0026] Embodiment 1:

[0027] See Figures 1-4 , Figure 1The structural schematic diagram of a nut clamping device is drawn. As shown in the figure, a nut clamping device of the present invention includes a clamping body 1. The clamping body 1 includes a first clamping body 2, a second clamping body 3, a handle 4, and a grip 5 arranged in sequence. The tops of the first clamping body 2, the handle 4, and the grip 5 are connected by upper fixing plates 8 respectively arranged on the front and back. The bottoms of the first clamping body 2, the second clamping body 3, and the grip 5 are connected by lower fixing plates 9 respectively arranged on the front and back.

[0028] The first clamping body 2 includes an upper connecting section 21, an arc section 22, a main clamping rod 23, and a lower connecting section 24 integrally formed from top to bottom. The top of the main clamping rod 23 is connected to the upper connecting section 21 through the arc section 22, and the bottom of the main clamping rod 23 is connected to the lower connecting section 24.

[0029] The middle part of the second clamping body 3 is a secondary clamping rod 31. One side of the top of the second clamping body 3 close to the first clamping body 2 is provided with a recessed limiting platform 32, and the other side is provided with an extended support plate 33. One side of the top of the secondary clamping rod 31 close to the handle 4 is provided with a first connecting hole 34. The bottom of the second clamping body 3 is provided with a bent strengthening and fixing part 35.

[0030] The upper part of the handle 4 is provided with a groove 43. A second connecting hole 44 is provided near the groove 43 of the handle 4. Above the groove 43 is an eccentric part 41, and an eccentric wheel shaft 42 is provided on the eccentric part 41. The bottom of the handle 4 is provided with a hook 45 bent towards the second clamping body 3.

[0031] The grip 5 includes an upper fixing section 51, a handle section 52, a crossbar section 53, and a lower fixing section 54 integrally formed from top to bottom. The top of the handle section 52 is connected to the upper fixing section 51 bent towards the handle 4, and the bottom of the handle section 52 is connected to the crossbar section 53 bent towards the handle 4. The end of the crossbar section 53 is provided with a lower fixing section 54 bent upwards.

[0032] The upper connecting section 21 of the first clamping body 2, the eccentric wheel shaft 42 of the handle 4, and the upper fixing section 51 of the grip 5 are all fixed on the upper fixing plate 8. The lower connecting section 24 of the first clamping body 2 and the lower fixing section 54 of the grip 5 are all fixed on the lower fixing plate 9. The strengthening and fixing part 35 of the second clamping body 3 is hinged to the lower fixing plate 9 through a rotating shaft.

[0033] A bearing 6 is provided between the top of the second clamp body 3 and the eccentric part 41 of the handle 4. The sides of the top of the second clamp body 3 near the bearing 6 and the sides of the eccentric part 41 near the bearing 6 are both rounded to facilitate the rotation of the bearing 6. The top of the second clamp body 3 and the bearing 6 are both fixed on the moving plate 10 by a pin shaft. The moving plate 10 is arranged below the upper fixing plate 8. The recess of the limiting platform 32 is arranged below the upper connecting section 21 of the first clamp body 2, and the extending support plate 33 is higher than the bottom edge of the upper connecting section 21, thereby limiting the stroke of the moving plate 10, that is, the stroke of the rotation of the handle 4.

[0034] An elastic member 7 is provided between the first connecting hole 34 and the second connecting hole 44 to connect the second clamp body 3 and the handle 4. The elastic member 7 can be a tension spring.

[0035] The side of the top of the second clamp body 3 near the first clamp body 2 is in smooth transition with the arc section 22 of the first clamp body 2 to form a semi-circular clamping opening. Therefore, the bottoms of the main clamp rod 23 and the sub-clamp rod 31 are close, and the tops are separated by the arc section 22. Thus, the distance between the main clamp rod 23 and the sub-clamp rod 31 gradually decreases from top to bottom to form a V-shaped nut groove 11. The upper part of the nut groove 11 is a semi-circular clamping opening. Serrations are provided on the opposite sides of the main clamp rod 23 and the sub-clamp rod 31, which is more conducive to cracking nuts.

[0036] A protective sleeve 13 is sleeved outside the main body part of the handle 4, which can be made of rubber material to protect the hand.

[0037] The outer part of the fixture body 1 except for the nut groove 11 and the protective sleeve 13 is provided with an outer shell 12, which is more beautiful and comfortable.

[0038] Those not further described in the present invention are all prior arts.

[0039] Working principle:

[0040] The present invention provides a nut clamping device. When the handle is pressed, the eccentric part of the handle rotates around the eccentric wheel shaft, driving the bearing to rotate, thereby pushing the second clamp body to rotate towards the first clamp body with the hinge point as the fixed point. Thus, the included angle of the nut groove between the first clamp body and the second clamp body becomes smaller, and the nut shell is damaged by the pressing force between the two. When the handle is released, the second clamp body and the handle are reset by the elastic member. And the nut groove is V-shaped and can clamp nuts from top to bottom. Thus, it can be applicable to nuts of various sizes, and the applicable range is very wide.

[0041] In the above embodiment, the maximum compression stroke of the second clamp body is 4 mm and the minimum is 2 mm. The smaller stroke can break the outer shell without affecting the pulp and also avoid the risk of pinching the hand. The movement range of the handle is within the comfortable force application range of the human hand, i.e., 35 mm. Assuming the hand grip force is F and the pressing force is P, when the compression stroke is 4 mm, according to the conversion formula F * 35 = P * 4, the maximum pressing force of the second clamp body is 8.75 times the hand grip force. When the compression stroke is 2 mm, according to the conversion formula F * 35 = P * 2, the maximum pressing force of the second clamp body is 17.5 times the hand grip force. It can be seen therefrom that the nut clamping device of the present invention is labor-saving and has a large enough crushing force to break a hard outer shell. When in use, fix the nut with the hand between the first clamp body and the second clamp body to find a suitable angle for crushing. After the shell-breaking is completed, automatic reset can be achieved.

[0042] The above are only specific application examples of the present invention and do not constitute any limitation to the protection scope of the present invention. Any technical solutions formed by equivalent transformation or equivalent substitution fall within the scope of the protection of the rights of the present invention.

Claims

1. A nut clamping device, characterized in that: It includes a fixture body (1), and the fixture body (1) includes a first clamp body (2), a second clamp body (3), a handle (4) and a grip (5) arranged in sequence. The tops of the first clamp body (2), the handle (4) and the grip (5) are connected by an upper fixing plate (8), and the bottoms of the first clamp body (2), the second clamp body (3) and the grip (5) are connected by a lower fixing plate (9); the bottom of the second clamp body (3) is hinged to the lower fixing plate (9) and forms an included angle with the first clamp body (2) to form a nut groove (11). A bearing (6) is provided between the top of the second clamp body (3) and the top of the handle (4). The top of the handle (4) is an eccentric part (41), and the eccentric part (41) is hinged to the upper fixing plate (8) through an eccentric wheel shaft (42). The top of the second clamp body (3) and the bearing (6) are both fixed on a moving plate (10). Thus, pulling the handle (4) can push the bearing (6) through the eccentric part (41) to rotate the top of the second clamp body (3), reduce the included angle between the second clamp body (3) and the first clamp body (2), and realize cracking nuts.

2. The nut clamping device according to claim 1, wherein: The first clamp body (2) includes an upper connection section (21), an arc section (22), a main clamp rod (23) and a lower connection section (24) integrally formed from top to bottom. The top of the main clamp rod (23) is connected to the upper connection section (21) through the arc section (22), and the bottom of the main clamp rod (23) is connected to the lower connection section (24); the middle part of the second clamp body (3) is a secondary clamp rod (31), and the grip (5) includes an upper fixing section (51), a handle section (52), a cross bar section (53) and a lower fixing section (54) integrally formed from top to bottom.

3. The nut clamping device according to claim 2, characterized in that: The upper connection section (21) of the first clamp body (2), the eccentric wheel shaft (42) of the handle (4) and the upper fixing section (51) of the grip (5) are all fixed on the upper fixing plate (8), and the lower connection section (24) of the first clamp body (2) and the lower fixing section (54) of the grip (5) are all fixed on the lower fixing plate (9).

4. The nut clamping device according to claim 2, wherein: A recessed limit platform (32) is provided on one side of the top of the second clamp body (3) close to the first clamp body (2), and an extending support plate (33) is provided on the other side. The moving plate (10) is arranged below the upper fixing plate (8). The recess of the limit platform (32) is arranged below the upper connection section (21) of the first clamp body (2), and the extending support plate (33) is higher than the bottom edge of the upper connection section (21), thereby restricting the stroke of the moving plate (10), that is, the stroke of the rotation of the handle (4).

5. The nut clamping device according to claim 2, wherein: A first connection hole (34) is provided on one side of the top of the secondary clamp rod (31) close to the handle (4). A groove (43) is provided on the upper part of the handle (4), and a second connection hole (44) is provided on the handle (4) close to the groove (43). An elastic member (7) is provided between the first connection hole (34) and the second connection hole (44) to connect the second clamp body (3) and the handle (4).

6. The nut clamping device according to claim 2, characterized in that: A bent strengthening and fixing part (35) is provided at the bottom of the second clamping body (3), and the strengthening and fixing part (35) of the second clamping body (3) is hinged to the lower fixing plate (9) through a rotating shaft.

7. The nut clamping device according to claim 2, wherein: The top of the handle means (52) is connected to the upper fixing section (51) bent towards the handle (4), the bottom of the handle means (52) is connected to the cross bar section (53) bent towards the handle (4), and an upwardly bent lower fixing section (54) is provided at the end of the cross bar section (53).

8. The nut clamping device according to claim 2, wherein: A moving plate (10) is riveted to the front and back of the top of the second clamping body (3) respectively. A bearing (6) is provided on the moving plate (10), and the bearing (6) is in contact with the eccentric part (41) of the handle (4). The side of the eccentric part (41) close to the bearing (6) is made smooth to facilitate the rotation of the bearing (6).

9. The nut clamping device according to claim 2, characterized in that: The side of the top of the second clamping body (3) close to the first clamping body (2) is in smooth transition with the arc section (22) of the first clamping body (2) to form a semi-circular clamping opening. Therefore, the upper part of the nut groove (11) is a semi-circular clamping opening.

10. A nut clamping device according to claim 2, wherein: Saw teeth are provided on the opposite sides of the main clamping rod (23) and the auxiliary clamping rod (31), which is more conducive to cracking nuts.

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