A kind of artificial harvesting device of stem tip

Abstract

A device for artificially harvesting stem tips comprises an index finger ring and a thumb ring for use in combination, wherein the index finger ring comprises an index finger ring body and a V-shaped knife groove arranged on the outer surface of the index finger ring body, the direction of the V-shaped knife groove is parallel to the central axis of the index finger ring body; the thumb ring comprises a thumb finger ring body and a ridge-shaped knife body arranged on the outer surface of the thumb finger ring body, the direction of the ridge-shaped knife body and its top cutting edge are perpendicular to the central axis of the thumb finger ring body; the index finger ring body and the thumb finger ring body are both connected by a three-layer structure of a wear-resistant outer ring, a plastic middle ring and a flexible inner ring, the V-shaped knife groove and the ridge-shaped knife body are both fixedly connected to the wear-resistant outer ring, the shapes of the two are matched, and the overall length of the V-shaped knife groove is greater than or equal to the length of the ridge-shaped knife body. The invention is designed with reasonable structure in view of the characteristics of stems and leaves, has fast cutting effect, and high harvesting efficiency.

Description

Technical Field

[0001] The invention relates to a tool for manual harvesting, in particular to a device for manual harvesting of stem tips, which is suitable for picking tender leaves of stem tips such as sweet potato stem tips. Background Art

[0002] The stem tip is a section of tender stems and leaves at the top of the plant branches. It is a mixture of both tender leaves and stems, so it is small and tender. It often needs to be carefully picked by hand. If you do it with your bare hands, that is, pinch it with your fingernails, the juice at the stem tip can easily hurt the skin; if you use tools such as scissors to harvest, the efficiency is low and it is not safe enough.

[0003] As a representative of vegetables that need to be harvested from the stem tips, the tender leaves at the stem tips of sweet potatoes have nutritional and health functions: a 10-centimeter-long section of tender stems and leaves at the top of the sweet potato vine is called the sweet potato stem tip. This part of the tissue is fresh and tender, with concentrated nutrients and high nutritional value. In terms of its nutritional content, it is a top vegetable. Secondly, the sweet potato stem tip has a diuretic effect when eaten as a vegetable, and is also a good vegetable for patients with hypertension.

[0004] In summary, sweet potato stem and leaf vegetables are made with young and tender stems and leaves as products. They have tender tissues, high water content, and are more prone to wilt and dehydration. At the same time, they are required to maintain a high product grade. Therefore, they must be harvested in time, and an efficient, convenient, safe and protective harvesting tool is urgently needed.

[0005] In order to solve the above problems, Figure 1 As shown, a known purple sweet potato leaf picking device is disclosed, which is composed of an annular blade 1, a fixing ring 2, a picking glove 3 and an extrusion sleeve 4. The picking glove body is woven from cotton yarn, and the thumb and index finger of the picking glove are made of silicone. A fixing ring is placed on the outside of the thumb of the picking glove, and an annular blade is placed on the fixing ring. The extrusion sleeve is placed on the outside of the index finger of the picking glove, and multiple annular knife grooves are evenly opened on the outside of the extrusion sleeve. When in use, first put the picking glove on the hand, and then place the purple sweet potato leaf stem to be picked between the thumb and index finger, close the thumb and index finger of the picking glove, and place the annular blade on the fixing ring on the outside of the thumb of the picking glove, so that the purple sweet potato leaf stem can be squeezed, and the closing force causes the annular blade to cut off the purple sweet potato leaf stem.

[0006] Although the existing picking device can assist manual picking to a certain extent, it has shortcomings in the use process and principle: on the one hand, judging from the arrangement position and direction of the annular blade and the annular knife groove, when performing the cutting action, the thumb and index finger need to move up and down relatively in a parallel state, the cutting force is not strong, it is awkward, it is not convenient to exert force, and it is easy to get tired, and it cannot improve the working efficiency well; on the other hand, the engagement direction of the annular blade and the annular knife groove is perpendicular to the plane where the hand is located, and the direction of the purple sweet potato leaf stem after being placed between the thumb and index finger in the most natural way is also vertical, so the cutting edge and the cut leaf stem are parallel to each other, which is not convenient to cut off the leaf stem, and the cutting effect is naturally greatly reduced. Summary of the invention

[0007] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a device for artificially harvesting stem tips, which has reasonable structural design, fast cutting, good effect and high harvesting efficiency according to the characteristics of stems and leaves.

[0008] The technical solution adopted by the present invention to solve its technical problems is: it includes an index finger ring and a thumb ring for use together, the index finger ring includes an index finger ring body and a V-shaped knife groove arranged on the outer surface of the index finger ring body, the direction of the V-shaped knife groove is parallel to the central axis of the index finger ring body, the thumb ring includes a thumb finger ring body and a ridge-shaped knife body arranged on the outer surface of the thumb finger ring body, the direction of the ridge-shaped knife body and its top cutting edge are perpendicular to the central axis of the thumb finger ring body; the index finger ring body and the thumb finger ring body are both composed of a three-layer structure of a wear-resistant outer ring, a plastic middle ring and a flexible inner ring, the V-shaped knife groove and the ridge-shaped knife body are both fixedly connected to the wear-resistant outer ring, the shapes of the two match, and the overall length of the V-shaped knife groove is greater than or equal to the length of the ridge-shaped knife body.

[0009] Compared with the prior art, the present invention provides an artificial harvesting device for stem tips. First, by wearing an index finger ring and a thumb ring on the index finger and thumb of the same hand respectively, the index finger naturally bends inwards until the V-shaped knife groove is approximately horizontal when in use. At the same time, the V-shaped knife groove faces the thumb side when worn, and the thumb also bends inwards to ensure that the ridge-shaped knife body on the thumb ring is facing the V-shaped knife groove. Then the thumb and index finger are brought close to the stem tip to be cut so that they are between the two fingers and at the same time are located in the palm of the hand, which is beneficial to the stability of the entire stem during the cutting process. At this time, the stem tip can maintain its natural upright posture, which is convenient and quick to operate. The cutting blade direction is perpendicular to the stem tip itself, the cutting angle and force are also optimal, and the application of cutting force is also the most convenient posture, that is, the thumb naturally The method of pressing down; furthermore, the index finger ring body and the thumb ring body of the present invention are both composed of a three-layer structure of a wear-resistant outer ring, a plastic middle ring and a flexible inner ring. The wear-resistant ring has certain wear resistance and hardness, and is used to meet the needs of harvesting and use and prolong the service life. The plastic middle ring is used to achieve fine-tuning of the overall size when worn, and the flexible inner ring protects the fingers, increases friction (firmly worn, not easy to shift and fall off), improves operating comfort, and reduces fatigue. In addition, in terms of length, the length of the V-shaped knife groove is designed to be greater than or equal to the length of the ridge-shaped knife body, so as to avoid hurting the fingers during operation. In summary, the many design points of the present invention comprehensively improve the harvesting effect and efficiency, and truly make manual harvesting of stem tips efficient, convenient and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is a structural schematic diagram of the prior art.

[0012] Figure 2a It is a front view of an embodiment of the present invention.

[0013] Figure 2b yes Figure 2a Left view of .

[0014] Figure 3a It is a front view of another embodiment of the present invention.

[0015] Figure 3b yes Figure 3a Left view of .

[0016] Figure 4a It is a side view of another embodiment of the present invention.

[0017] Figure 4b It is a side view of yet another embodiment of the present invention.

[0018] Figure 5 It is a structural schematic diagram of the wearing state of an embodiment of the present invention.

[0019] Figure 6 It is a schematic diagram of the structure when the embodiment of the present invention is used.

[0020] In the figure, 1, annular blade, 2, fixing ring, 3, picking glove, 4, extrusion ring, 100, index finger ring, 101, index finger ring body, 1011, ground outer ring A, 1012, plastic middle ring A, 1013, flexible inner ring A, 1014, notch A, 102, V-shaped knife groove, 1021, triangle, 200, thumb ring, 201, thumb ring body, 2011, ground outer ring B, 2012, plastic middle ring B, 2013, flexible inner ring B, 2014, notch B, 202, ridge-type knife body. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Preferred embodiment one:

[0023] like Figures 2a to 6 As shown, the present embodiment provides an artificial stem tip harvesting device, comprising an index finger ring 100 and a thumb ring 200, which are worn on the index finger and thumb of the same hand respectively. When used, the index finger is naturally bent inward to be in a roughly horizontal position, and the thumb is pressed down against the naturally bent index finger. After that, it is only necessary to place the plant stem tip to be cut between the two fingers.

[0024] Among them, see Figure 2a and 2b The index finger ring 100 comprises an index finger ring body 101 and a V-shaped knife groove 102 arranged on the outer surface of the index finger ring body 101. Specifically, the V-shaped knife groove 102 can be preferably formed by two parallel triangles 1021 arranged side by side, but is not limited thereto. The direction of the V-shaped knife groove 102 is parallel to the central axis of the index finger ring body 101; the index finger ring body 101 is composed of a three-layer structure of a wear-resistant outer ring A1011, a plastic middle ring A1012 and a flexible inner ring A1013, and the V-shaped knife groove 102 is fixedly connected to the wear-resistant outer ring A1011.

[0025] See Figure Figure 3a and 3bThe thumb ring 200 includes a thumb ring body 201 and a ridge-shaped blade body 202 arranged on the outer surface of the thumb ring body 201. The direction of the ridge-shaped blade body 202 and its top cutting edge are perpendicular to the central axis of the thumb ring body 201; the thumb ring body 201 is composed of a three-layer structure of a wear-resistant outer ring B2011, a plastic middle ring B2012 and a flexible inner ring B2013, and the ridge-shaped blade body 202 is fixedly connected to the wear-resistant outer ring.

[0026] In this embodiment, the shapes of the ridge-shaped blade body 202 on the thumb ring body 201 and the V-shaped blade groove 102 on the index finger ring body 101 need to match each other, so as to provide a placement space and a cutting surface for the plant stem tip. For operational safety considerations, the overall length of the V-shaped blade groove 102 should be greater than or equal to the length of the ridge-shaped blade body 202 to avoid cutting fingers.

[0027] Preferred embodiment 2:

[0028] like Figures 2a to 4b As shown, the present embodiment provides a stem tip artificial harvesting device. In the present embodiment, the height of the ridge-shaped blade body 202 is greater than or equal to the depth of the V-shaped blade groove 102, so that the ridge-shaped blade body 202 can enter and exit the V-shaped blade groove 102 more flexibly, which is conducive to achieving a better cutting effect with less force, saving effort and being efficient. The length of the index finger ring body 101 is greater than or equal to the length of the V-shaped blade groove 102, thereby forming a wider protection range on the finger surface, further ensuring the safety of the operation process.

[0029] Preferred embodiment three:

[0030] like Figure 4a and Figure 4b As shown, this embodiment provides an artificial harvesting device for stem tips. In this embodiment, at least one of the wear-resistant outer ring and the plastic middle ring is an eccentric circular structure, the center of the wear-resistant outer ring is offset to the side away from the V-shaped knife groove 102 or the ridge-shaped knife body 202, and the center of the plastic middle ring is offset to the side close to the V-shaped knife groove 102 or the ridge-shaped knife body 202; this illustrated embodiment provides one of the feasible solutions, that is, the plastic middle ring is an eccentric circular structure, and it can also be that only the wear-resistant outer ring adopts the form of an eccentric circular structure, or the wear-resistant outer ring and the plastic middle ring are both eccentric circular structures; the expected effects are consistent, all of which are achieved through eccentric settings, so that the thickness of the wear-resistant outer ring at the part with the V-shaped knife groove 102 or the ridge-shaped knife body 202 is larger, and the thickness of the plastic middle ring is smaller, and the opposite is true at the relative position; the advantage of such a setting is to increase the strength of the part where the cutting operation is directly performed, and at the same time improve the wearing comfort.

[0031] Preferred embodiment four:

[0032] like Figure 4a and Figure 4b As shown, this embodiment provides an artificial harvesting device for stem tips. In this embodiment, the index finger ring body 101 and the thumb finger ring body 201 are provided with a notch A1014 and a notch B2014 on the side away from the V-shaped knife groove 102 or the ridge-shaped knife body 202, so that it can be worn by fingers of different thicknesses, and to a certain extent, it cooperates with the plastic material to achieve fine adjustment of the size, and is neither easy to loosen nor constrained.

[0033] In this embodiment, when the width of the notch is in the range of 1-2 mm, it can meet the overall performance requirements of the index finger ring body 101 and the thumb ring body 201, and can also meet the needs of fine-tuning the deformation, and the overall effect is the best.

[0034] Preferred embodiment five:

[0035] like Figure 4a and Figure 4b As shown, this embodiment provides a device for artificial harvesting of stem tips. In this embodiment, the V-shaped blade groove 102 and the ridge-shaped blade body 202 can both be made of polymethyl methacrylate, which has high surface hardness and wear resistance and is cost-effective.

[0036] In this embodiment, the wear-resistant outer ring can be made of a material with good wear resistance such as rubber. The plastic middle ring is preferably made of metal or plastic with good plasticity, which meets the performance requirements of flexible size adjustment. The flexible inner ring is made of flexible materials such as silicone ring, silicone rubber ring or high-rebound sponge ring to improve the wearing comfort and increase reliability.

[0037] The present invention is particularly suitable for harvesting or removing various stem tips, with fast speed and no damage, and fresh stem tips, such as purple sweet potato stem tips, can be collected at the first time; it can also be extended to the picking of various stem and leaf vegetables, such as water spinach, amaranth, and leek; it can even be used to assist in the picking of fruits, such as grapes.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification and equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A device for manually harvesting stem tips, comprising an index finger ring (100) and a thumb finger ring (200) for use together, characterized in that: The index finger ring (100) comprises an index finger ring body (101) and a V-shaped knife groove (102) arranged on the outer surface of the index finger ring body (101), and the direction of the V-shaped knife groove (102) is parallel to the central axis of the index finger ring body (101); The thumb ring (200) comprises a thumb ring body (201) and a ridge-shaped knife body (202) arranged on the outer surface of the thumb ring body (201); the direction of the ridge-shaped knife body (202) and the top cutting edge thereof are perpendicular to the central axis of the thumb ring body (201); The index finger ring body (101) and the thumb ring body (201) are both composed of a three-layer structure of a wear-resistant outer ring, a plastic middle ring and a flexible inner ring. The V-shaped knife groove (102) and the ridge-shaped knife body (202) are both fixedly connected to the wear-resistant outer ring. The shapes of the two match. The overall length of the V-shaped knife groove (102) is greater than or equal to the length of the ridge-shaped knife body (202). At least one of the wear-resistant outer ring and the plastic middle ring is an eccentric circle structure, the center of the wear-resistant outer ring is offset to a side away from the V-shaped knife groove (102) or the ridge-shaped knife body (202), and the center of the plastic middle ring is offset to a side close to the V-shaped knife groove (102) or the ridge-shaped knife body (202); The height of the ridge-shaped blade body (202) is greater than or equal to the depth of the V-shaped blade groove (102); The length of the index finger ring body (101) is greater than or equal to the length of the V-shaped knife groove (102).

2. The artificial harvesting device for stem tips according to claim 1, characterized in that: The index finger ring body (101) and the thumb ring body (201) are both provided with a notch A (1014) and a notch B (2014) on the side away from the V-shaped blade groove (102) or the ridge-shaped blade body (202).

3. The artificial harvesting device for stem tips according to claim 2 is characterized in that: The width of the notch is in the range of 1-2 mm.

4. The artificial harvesting device for stem tips according to claim 1, characterized in that: The V-shaped blade groove (102) and the ridge-shaped blade body (202) are both made of polymethyl methacrylate.

5. The artificial harvesting device for stem tips according to claim 1, characterized in that: The wear-resistant outer ring is made of rubber.

6. The artificial harvesting device for stem tips according to claim 1, characterized in that: The plastic middle ring is made of metal or plastic.

7. The artificial harvesting device for stem tips according to claim 1, characterized in that: The flexible inner ring is a silicone ring, a silicone rubber ring or a high-resilience sponge ring.

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