CN108450131B - A hand-held pineapple picking device - Google Patents

Abstract

The invention provides a hand-held pineapple picking device, which comprises: a box body, a handle, a central shaft, a one-way transmission mechanism, a guide protection mechanism, and a cutter mechanism. The box has a limit slot, and the stalk can move from the notch of the limit slot to the bottom of the limit slot; the handle is connected to the box; the central axis is arranged on the box through a one-way transmission mechanism; the guide protection mechanism It is arranged on the central shaft and has multiple blades. The blades can be pushed by the pineapple to drive the central shaft to rotate counterclockwise or clockwise relative to the box when the stem moves to the bottom of the limiting groove; the cutting knife The mechanism is arranged on the central axis and has multiple blades; after the blade moves to the bottom of the limiting groove, the blade moves to a position that can limit the stem from moving out of the notch of the limiting groove, and the blade can be placed in the box Cut the stalk when it is far away from the stalk, so that the pineapple can be separated from the stalk, and the pineapple can be cut smoothly. Compared with the prior art, the picking device of the present application is convenient to use and does not damage pineapples.

Description

A hand-held pineapple picking device

technical field

The invention relates to a fruit picking device, in particular to a hand-held pineapple picking device.

Background technique

At present, because pineapple is a perennial fruit with a special structure, it is impossible to carry out large-scale mechanized picking at one time, and it can only be picked in batches in a targeted manner; and the normal growth of pineapple plants must be maintained while picking, so as not to affect its results for the following year. At present, domestic pineapple picking is mainly manual picking. Because pineapple leaves have sharp teeth, and the peel is hard and raised with thorns, pure manual picking is easy to cause injury, which seriously affects the picking of pineapples. Efficiency is also a headache for pickers. To solve such a difficult problem, we must consider from many aspects, and then carry out structural design to meet the actual requirements. Most of the pineapple harvesters on the market are large machinery, and their power mechanism is driven by a huge tractor. There are also a small number of small machines that selectively pick through the cooperation of human hands and manipulators.

There are a series of problems in the pineapple picking process in the prior art, such as large-scale mechanized picking, which is inevitably limited by factors such as geographical environment, fruit field location, fruit field scale, etc., and the economic cost of its picking is also too high . The commonly used manipulator structure usually separates the pineapple from the stem by clamping the pineapple and twisting the pineapple relative to the stem. This method will pinch the pulp and reduce the value of the fruit. At the same time, the handle of the commonly used manipulator structure is usually a straight rod structure, which does not conform to the ergonomic design, causing the user to bend over repeatedly when using the pineapple, and there is a problem of high labor intensity.

In view of this, the inventor proposes the present application after studying the prior art.

Contents of the invention

The technical problem to be solved by the present invention is to provide a pineapple picking device to solve the problem that the existing picking mechanism pinches the pulp when picking pineapples.

In order to solve the above technical problems, the present invention provides a hand-held pineapple picking device, which includes: a box body, a handle, a central shaft, a one-way transmission mechanism, a guide protection mechanism, and a cutter mechanism. The box has a limit slot, and the stalk can move from the notch of the limit slot to the bottom of the limit slot when the box is close to it; the handle is connected to the box; the central shaft is arranged on the On the box body, the central shaft can rotate counterclockwise or clockwise relative to the box body, and the one-way transmission mechanism can correspondingly restrict the clockwise rotation or counterclockwise rotation of the central shaft; the guide protection mechanism is arranged on the upper end of the central shaft , and the guide protection mechanism has a plurality of blades arranged at intervals along the circumferential direction, and the blades can be driven by the pineapple to rotate the shaft counterclockwise relative to the box when the stem moves to the bottom of the limiting groove. Rotate or rotate clockwise; the cutter mechanism is arranged on the central shaft and can rotate with it. The cutter mechanism has a plurality of blades arranged at intervals along the circumferential direction; The bottom moves to the position where the stem can be restricted from moving out of the notch of the limiting groove, and the blade that moves to the position where the stem can be restricted to move out of the notch of the limiting groove can cut the stem when the box is far away from the stem , so that the pineapple is separated from the stalk, and the pineapple can be cut smoothly.

As a further improvement, the box body includes a main body and a box cover arranged on the main body; the box cover is provided with an inverted groove matched with a limit groove, and the inverted groove is used to prevent the pineapple from being separated from the stalk. The outer edge of the lid fell to the ground.

As a further improvement, the blades of the guide protection mechanism are arc-shaped, and the inner wall of the blades can be tangent to the outer edge of the pineapple when the stem moves to the bottom of the limiting groove, and after the pineapple is separated from its stem, , the inner wall of the blade can protect the pineapple from falling smoothly into the pouring groove provided by the box cover.

As a further improvement, the cutter mechanism of the picking device includes a knife holder supporting the blade; the knife holder is installed on the central shaft.

As a further improvement, the box includes a main body and a case cover arranged on the main body; the one-way transmission mechanism includes a first one-way bearing and a second one-way bearing, and the bearing outer ring of the first one-way bearing is fixed on the On the case cover, the bearing outer ring of the second one-way bearing is fixed on the case body.

As a further improvement, the box includes a main body and a box cover arranged on the main body; the one-way transmission mechanism of the picking device is a ratchet mechanism, and the ratchet mechanism includes a ratchet, a pawl, a positioning rod and a torsion spring; The ratchet is fixed on the central shaft and located below the knife holder, one end of the ratchet is inserted into the tooth groove of the ratchet, and the other end of the ratchet is rotatably arranged on the main body through a positioning rod part; the torsion spring is arranged between the main body part and the pawl; when the ratchet wheel pushes the pawl to rotate, the pawl drives the torsion spring to deform, and the torsion spring resets from the deformed state At the same time, the pawl is driven to be inserted into the tooth groove of the ratchet.

As a further improvement, the handle is an aluminum alloy handle.

As a further improvement, the handle is curved.

By adopting the above technical solution, the present invention can achieve the following technical effects:

1. When picking pineapples in the above-mentioned structure, the user moves forward by holding the handle, so that the stalk under the pineapple enters the limiting groove, and moves along the groove to the bottom of the groove. During this process, the guide protection structure and the cutter mechanism Rotating in the same direction with the central axis, when the stalk reaches the bottom of the limiting groove, when a reverse pulling force is applied to the handle, under the action of the one-way transmission mechanism, the cutter structure takes effect, smoothly making the pineapple and its stalk Stalk separation; in the above process, the picking device of the present application does not hold the pineapple, so it will not damage the pineapple;

2. In the case of setting up an inverted trough, the inverted trough of this application can greatly prevent the pineapple from being separated from the stalk and directly falling to the ground to cause damage;

3. In the case of arc-shaped blades, the inner wall of the blade can protect the pineapple from falling smoothly into the pouring groove set by the box cover after the pineapple is separated from its stem, thereby helping to avoid damage;

4. The aluminum alloy handle makes the whole product lighter, easy to take and carry;

5. The curved handle is adopted, which can conform to ergonomics, avoid bending over during picking pineapples, greatly reduce labor intensity and improve labor efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention under a first viewing angle;

Fig. 2 is a schematic structural diagram of the present invention under a second viewing angle;

Fig. 3 is the working schematic diagram of the present invention;

Figure 4 is an exploded view of the present invention under the first embodiment;

Fig. 5 is a schematic diagram of the one-way transmission structure of the present invention under the first embodiment;

Fig. 6 is a schematic diagram of the main body of the present invention under the first embodiment;

Fig. 7 is an exploded view of the present invention under the second embodiment.

Reference sign

1. Box body; S, limit slot; 1A, main body; 1B, box cover; 1C, inverted groove; 1D, positioning hole;

2. Central axis; 3. Guide protection mechanism; 3A, blade; 4. Cutter mechanism; 4A, blade; 4B, knife holder; 5. One-way transmission mechanism; 6. Ratchet 7. Pawl; 8. Positioning rod; 9. Torsion spring; 10. Bearing;

11. First one-way bearing; 12. Second one-way bearing; 13. Handle; L1, pineapple; L2, stem.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

The present invention provides a hand-held pineapple picking device. The pineapple picking device is mainly used for picking pineapple growing on the ground. Referring to FIGS. 1 to 6, in the first embodiment, the pineapple picking device includes a box body 1, a center Shaft 2, one-way transmission mechanism 5, guide protection mechanism 3, cutter mechanism 4 and handle 13.

Referring to Figures 1 to 6, it can be seen that the box body 1 includes a limiting slot S, a main body 1A, a box cover 1B, an inverted slot 1C, and a positioning hole 1D. The box cover 1B and the main body 1A can be fixed together by welding or screws. The inverted groove 1C is arranged on the top of the box cover 1B and cooperates with the limit slot S to prevent the pineapple from being separated from the stalk below it. Damage the pineapple by falling from the outer edge of the lid to the ground. The main body 1A, the case cover 1B, and the pouring groove 1C can be made of aluminum alloy. The limiting groove S can be a U-shaped groove in the figure, but can also be other V-shaped grooves or grooves of other shapes.

The central axis 2 passes through the box cover 1B and is supported on the box body 1 by the one-way transmission mechanism 5. In this implementation, the central axis 2 can rotate counterclockwise relative to the box body 1, and the one-way transmission mechanism 5 can limit the rotation of the central axis 2 relative to the box body. Body 1 rotates clockwise. The central shaft 2 can cooperate with the case cover 1B through the bearing 10 .

The guide protection mechanism 3 includes three blades 3A arranged at intervals in the circumferential direction, and the three blades 3A are connected to a set of connectors set and fixed on the central shaft 2 . The guide protection mechanism 3 can rotate synchronously with the central shaft 2 . The blade 3A is arc-shaped. The three blades 3A in this embodiment are arranged at equal intervals along the circumferential direction, and the interval angle between every two blades is 120°. The number of blades 3A is not limited to the number in this application, and the interval angle between every two blades 3A can be adjusted within the range of 0° to 180°, for example, within the range of 30° to 180°.

The cutter mechanism 4 includes three blades 4A and a knife holder 4B arranged at intervals in the circumferential direction. The blade 4A can be fixed on the knife holder 4B by interference fit or bolt fastening, and the knife holder 4B adopts an interference fit It is fixed on the central shaft 2 and is located below the guide protection mechanism 3 . The 3 blades 4A and the 3 blades 3A of the guide protection mechanism are arranged in a staggered manner. When projected onto the same plane, there is a certain angle between the two, and the specific angle can be determined according to the overall size of the picking device. The cutter mechanism 4 can rotate synchronously with the central shaft 2 . The three blades 4A in this embodiment are arranged at equal intervals along the circumferential direction, and the interval angle between every two blades is 120°. The number of blades 4A is not limited to the number in this application, and the interval angle between every two blades can be adjusted within the range of 0° to 180°, for example, within the range of 30° to 180°.

The armrest 13 is installed on the main body 1A, and the armrest 13 can be curved, and the armrest 13 can be an aluminum alloy handle.

In the first embodiment, the one-way transmission mechanism is a ratchet mechanism. The ratchet mechanism includes a ratchet 6 and a pawl 7. The ratchet 6 is installed under the tool holder 4B of the central shaft 2 through interference fit, and the ratchet 7 is installed in the box. On 1B, one end of the pawl 7 is inserted into the tooth groove of the ratchet, and the other end of the pawl 7 is rotatably arranged on the main body 1A of the box body 1 through the positioning rod 8, and the positioning rod 8 is fixed in the positioning hole 1D on the box body 1 Inside; the torsion spring 9 is arranged between the main body 1A and the pawl 7; when the ratchet 6 pushes the pawl 7 to rotate, the pawl 7 will drive the torsion spring 9 to deform, and when the pawl 7 rotates around the center of the torsion spring 9 , they will be pulled back to the initial position to generate torque or rotational force, and the torsion spring 9 will drive the ratchet 7 to be inserted into the tooth groove of the ratchet 6 again when the torsion spring 9 resets from the deformed state. When the guide protection mechanism 3 drives the central shaft 2 to rotate counterclockwise together, the ratchet 6 also rotates thereupon.

1 to 3, the hand-held pineapple picking device of the first embodiment works as follows: the user pushes the handle 13 to make the box 1 close to the stalk L2, when the pineapple stalk L2 enters along the opening of the limiting slot S, Since the pineapple L1 has two small ends and a large middle, one of the blades 3A of the guide protection mechanism 3 touches the pineapple L1. At this time, the user continues to push the box body 1 forward to make the stem L2 move to the bottom of the limit slot S. , the pineapple L1 produces a reaction force to the guide protection mechanism 3, so that the guide protection mechanism 3 drives the central shaft 2 to rotate together, and the cutter structure 4 also rotates thereupon. When the bottom of the limit slot S is reached or the maximum outer circle of the pineapple L2 is separated from the outer circle of the blade 3A, the blade 4A of the cutter mechanism 4 rotates to the outer circle of the pineapple stem. At this time, the pineapple stem L2 is between the blade 4A and the limit In the closed area surrounded by slot S. When pulling the handle 13 to apply a reverse pull force, the pawl 7 makes the ratchet wheel 6 unable to reversely rotate, and then the central shaft 2 cannot rotate clockwise. At this time, the blade 4A exerts a cutting force on the pineapple stalk to separate the pineapple L1 from its stalk L2, and the inner wall of the blade 3A can protect the pineapple L1 from falling smoothly into the pouring groove 1C provided by the box cover 1B. Finally, pour the pineapple in the tank into the collecting frame (not shown). The picking device of the present application can also be applied to the picking of other plants whose fruits are located above the stem.

That is to say, the above is the first embodiment of the present application, but it is easy to understand that the one-way transmission mechanism is not limited to the above-mentioned embodiments. Referring to FIG. 7, in the second embodiment, the one-way transmission mechanism may include the first one-way bearing 11 And the second one-way bearing 12. The bearing outer ring of the first one-way bearing 11 is fixed on the box cover 1B by interference fit, and the bearing outer ring of the second one-way bearing 12 is fixed on the main body 1A of the box body 1 by interference fit, so that the central shaft 2 installation. Through the above method, the central shaft can also be rotated counterclockwise but cannot be rotated clockwise. Other features not mentioned in this embodiment can be the same as the previous embodiment.

Different from the above-mentioned embodiment, the central shaft can rotate counterclockwise but cannot rotate clockwise. In other embodiments, the position of the limit groove can be adjusted, and the configuration of the one-way transmission mechanism can be adjusted at the same time, so that the central shaft can rotate clockwise but not counterclockwise. The hour hand turns.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (8)

1. A hand-held pineapple picking device is used to separate the pineapple of the pineapple plant from the stalk below it; it is characterized in that the pineapple picking device comprises: The box body (1) has a limiting groove (S), and the stalk can move from the notch of the limiting groove (S) to the bottom of the limiting groove (S) when the box body (1) is relatively close to it; The handle (13) is connected to the box body (1); The central shaft (2) is arranged on the box body (1) through a one-way transmission mechanism (5). The central shaft (2) can rotate counterclockwise or clockwise relative to the box body (1), and the one-way The transmission mechanism (5) can correspondingly limit the clockwise rotation or counterclockwise rotation of the central shaft (2); The guide protection mechanism (3) is arranged on the upper end of the central shaft (2), and the guide protection mechanism (3) has a plurality of blades (3A) spaced along the circumferential direction, and the blades (3A) can be positioned at When the stalk moves to the bottom of the limiting groove (S), it is pushed by the pineapple to drive the central axis to rotate counterclockwise or clockwise relative to the box (1); A cutter mechanism (4), configured on the central shaft (2) and able to rotate with it, the cutter mechanism (4) has a plurality of blades (4A) arranged at intervals along the circumferential direction; the blades (4A) are positioned at After the stem moves to the bottom of the limiting groove (S), it moves synchronously to a position that can limit the stem from moving out of the notch of the limiting groove (S), and moves to a position that can limit the stem from moving out of the notch of the limiting groove The blade (4A) at the right position can cut the stalk when the box is far away from the stalk, so that the pineapple is separated from the stalk. 2. picking device according to claim 1, is characterized in that, described casing (1) comprises main body (1A) and the case lid (1B) that is configured on the main body (1A); Described case lid ( 1B) is provided with an inverted groove (1C) matched with the limiting groove (S), and the inverted groove (1C) is used to prevent the pineapple from falling to the ground from the outer edge of the box cover (1B) after being separated from the stalk. 3. The picking device according to claim 2, characterized in that: the blade (3A) of the guide protection mechanism (3) is arc-shaped, and the inner wall of the blade (3A) can move to a limit on the stem The bottom of the groove (S) is tangent to the outer edge of the pineapple, and after the pineapple is separated from its stalk, the inner wall of the blade can protect the pineapple from falling smoothly into the pouring groove provided by the box cover (1B). 4. The picking device according to claim 1, characterized in that: the cutter mechanism (4) of the picking device includes a knife rest (4B) supporting the blade (4A); the knife rest (4B) is installed on said central axis (2). 5. The picking device according to claim 1, characterized in that: said casing (1) comprises a main body (1A) and a case cover (1B) configured on the main body (1A); said one-way transmission mechanism Including the first one-way bearing (11) and the second one-way bearing (12), the bearing outer ring of the first one-way bearing (11) is fixed on the described box cover (1B), and the second one-way bearing (12) The outer ring of the bearing is fixed on the box (1). 6. picking device according to claim 4, is characterized in that: described casing (1) comprises main body (1A) and the case cover (1B) that is arranged on the main body (1A); The one-way transmission mechanism (5) is a ratchet mechanism, and the ratchet mechanism includes a ratchet (6), a pawl (7), a positioning rod (8) and a torsion spring (9); the ratchet (6) is fixed on the center On the shaft (2), located below the knife rest (4B), one end of the pawl (7) is inserted into the tooth groove of the ratchet (6), and the other end of the pawl (7) passes through the positioning rod ( 8) Rotatably arranged on the main body (1A); the torsion spring (9) is arranged between the main body (1A) and the pawl (7); the ratchet (6) pushes When the pawl (7) rotates, the pawl (7) drives the torsion spring (9) to deform, and the torsion spring drives the pawl (7) to insert into the ratchet (6) when the torsion spring resets from the deformed state. in the alveolar. 7. The picking device according to any one of claims 1 to 6, characterized in that: the handle (13) is an aluminum alloy handle. 8. The picking device according to any one of claims 1 to 6, characterized in that the handle (13) is curved.

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