CN210519470U

CN210519470U - Pineapple picking device

Info

Publication number: CN210519470U
Application number: CN201920984837.2U
Authority: CN
Inventors: 张学升; 韩雪; 张学茹
Original assignee: Yangtze Normal University
Current assignee: Yangtze Normal University
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-05-15
Anticipated expiration: 2029-06-27

Abstract

The utility model relates to the technical field of fruit picking, in particular to a pineapple picking device, which comprises a handle, a clamping unit, a shearing unit and a driving unit, wherein the driving unit can drive the clamping unit and the shearing unit to act; the clamping hand comprises a support and a plurality of clamping fingers, the clamping fingers are perpendicular to the support and are fixedly connected with the support, and the support is fixedly connected with the outer side edge of a blade of the scissors. The utility model discloses can solve current pineapple and pick the device because of pressing from both sides the inconvenient problem of operation that tight and shearing needs the autonomous working to lead to.

Description

Pineapple picking device

Technical Field

The utility model relates to a technical field is picked to fruit, concretely relates to device is picked to pineapple.

Background

Pineapple, commonly known as pineapple, is one of the famous tropical fruits. The pineapple fruit has good quality and rich nutrition, and contains a large amount of fructose, glucose, vitamin B, C, phosphorus, citric acid, protease and other substances. At present, picking of pineapples is mainly divided into machine picking and manual picking, and the machine picking mode is high in cost and not easy to popularize; the manual picking mode is that two to three people form a group, one person picks up the bamboo basket, the other person or two people cut off the fruit handle with a knife or hold the fruit with one hand, and hold the fruit handle with the other hand and break, and the mode is inefficient, and the pricks on the outer layer of the pineapple are easy to hurt the picked person.

In order to solve the problem that machine picking and manual work pluck to exist, the pineapple harvesting device is disclosed in the correlation technique, including the handle, clamping unit, shearing unit and drive unit, drive unit can drive clamping unit and shearing unit action, clamping unit and shearing unit all locate on the handle, clamping unit is used for the centre gripping pineapple, shearing unit is used for shearing the rattan of pineapple, drive unit is used for driving clamping unit and shearing unit action, the handheld pineapple harvesting device of operator just can accomplish and pluck, pineapple harvesting device's with low costs and picking efficiency is higher.

For example, chinese patent publication No. CN106856830A discloses a pineapple shearing and picking device, which comprises a clamping device and a shearing device, wherein the clamping device comprises a handle, a clamping switch, a push rod, a spring, a rack, a gear, a connecting block, a clamping finger, a shearing blade, a connecting rod, a gear, a pull rope, a shearing operation handle, a return spring, a bolt, and a self-locking mechanism; the shearing device comprises a spring, a rubber sheet, a gear, a rack, a connecting rod, a rotating pin, a shearing blade and a pull rope. Clamping device and shearing mechanism in this scheme and the clamping unit in the correlation technique and shearing unit function are similar, and during the use, the operator is held the handle with one hand, moves the picking manipulator to pineapple fruit department, presss from both sides tight pineapple fruit and fixes a position with clamping device, pulls the shearing operating handle, through the rack and pinion cooperation, realizes the shearing of shearing blade to the fruit stalk.

The pineapple picking device of the scheme basically solves the problems of high cost and low efficiency existing in machine picking and manual picking. However, the operating method of the pineapple picking device comprises the following steps: the pineapple is clamped and positioned by the clamping device, and then the cutting is finished by the cutting device. The above operation method has the following problems: the clamping device and the shearing device need to work separately and independently, and under the condition that an operator is only one person, the operator needs one hand to keep the positioning of the clamping device and pulls the pull rope by the other hand to shear. Therefore, the prior pineapple picking device has the problem of inconvenient operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device is picked to pineapple to avoid current pineapple to pick the device because of pressing from both sides tightly with cut the inconvenient problem of operation that needs the autonomous working to lead to.

The utility model provides a basic scheme does: the utility model provides a device is picked to pineapple, includes handle, clamping unit, shearing unit and drive unit, and drive unit can drive clamping unit and shearing unit action, shearing unit includes the scissors, clamping unit includes two centre gripping hands, and two centre gripping hands are fixed connection respectively on the outside edge of two blades of scissors for two centre gripping hands can receive when two blades of scissors fold.

Like this, when using the picking device to pick the pineapple, the operator drives two blades of scissors and folds, cuts the rattan of pineapple, and at this moment, can gather together with two centre gripping hands of two blade fixed connection of scissors, carry out the centre gripping to the pineapple, consequently, when the rattan of pineapple is cut off, the centre gripping hand can stabilize and clip the pineapple to the operator is collected and is placed the pineapple, thereby accomplishes whole picking process. In this scheme, centre gripping unit and shearing unit fixed connection, the operator just can accomplish the centre gripping and the shearing of pineapple simultaneously through an action, has realized going on in step of centre gripping and shearing, consequently, this scheme has solved current pineapple harvesting device because of pressing from both sides tightly with cut the inconvenient problem of operation that needs the independent work to lead to.

Preferably, the clamping hand comprises a support and a plurality of clamping fingers, the clamping fingers are perpendicular to and fixedly connected with the support, and the support is fixedly connected with the outer side edge of the blade of the scissors.

Like this, many centre gripping fingers can be fixed a plurality of positions of pineapple simultaneously, and this is favorable to promoting the centre gripping stability to the pineapple.

Preferably, the support and the clamping fingers are both arc-shaped, the clamping fingers are uniformly arranged on the outer surface of the support, and the support and the clamping fingers are both made of hard elastic materials.

Therefore, when the pineapple is clamped, the bracket of the clamping hand is made of hard elastic materials, so that the clamping hand has a certain adjustable space (within the deformation range of the bracket) on the premise of ensuring the clamping stability, and the clamping hand can stably clamp the pineapples with different volumes; simultaneously, because support and centre gripping finger are circular-arc, the holding surface that the centre gripping finger arranged on the support formed approaches to sphere or ellipsoid for the centre gripping hand can better and pineapple contact when the centre gripping, can promote the stability of centre gripping.

Preferably, the shearing unit further comprises a bottom plate, the bottom plate is fixedly connected with the front end of the handle, and rotating shafts of the two blades of the scissors are fixedly connected with the bottom plate.

Thus, when the scissors of the shearing unit cut off the vines of the pineapples, the whole pineapples are clamped by the clamping hands, and at the moment, the weight of the whole pineapples can be borne by the bottom plate, so that the stability of the whole device is improved.

Preferably, the driving unit comprises a motor, a gear, a rack, a first connecting rod and a second connecting rod;

the first end of the first connecting rod is hinged with the handle of one blade of the scissors, the first end of the second connecting rod is hinged with the handle of the other blade of the scissors, and the second ends of the first connecting rod and the second connecting rod are hinged with the rack;

the output end of the motor is fixedly connected with the gear, and the gear is meshed with the rack, so that the rack can drive the rack to move when the output end of the motor rotates.

Therefore, the output end of the motor provides power to drive the gear to rotate, the gear can drive the rack to move by rotating, the rack drives the blades of the scissors to move through the first connecting rod and the second connecting rod, so that the scissors complete shearing action (when the rack moves towards the blades, the two blades are opened, and when the rack moves away from the blades, the two blades are closed), and the structure is stable in work and small in occupied space.

Preferably, the first link and the second link have the same length.

Thus, the first connecting rod and the second connecting rod have the same length, so that the scissors can always keep moving towards the right front, and the operation and the use of an operator are more facilitated.

Preferably, the handle is provided with a starting switch, a forward rotation switch and a reverse rotation switch; the contact end of the starting switch is connected in series with a power supply loop of the motor, so that the power supply loop of the motor can be switched on when the contact end of the starting switch is closed; the contact end of the forward rotation switch is connected to a forward rotation loop of the motor in series, so that the forward rotation loop of the motor can be connected when the contact end of the forward rotation switch is closed; the contact end of the reversing switch is connected to a reversing loop of the motor in series, so that the reversing loop of the motor can be connected when the contact end of the reversing switch is closed.

Thus, the power supply circuit for supplying power to the motor can work when the starting switch is pressed. If the forward rotation switch is pressed, the motor and the gear drive the rack to move to one side far away from the blades, and the rack drives the two blades of the scissors to fold through the first connecting rod and the second connecting rod to finish shearing; if the reversing switch is pressed down, the motor and the gear drive the rack to move towards the blade direction, the rack drives the two tool shanks of the scissors to be opened through the first connecting rod and the second connecting rod, and the shearing unit is reset. The operator can operate the whole pineapple picking device by pressing the starting switch, the forward rotation switch and the reverse rotation switch, and the pineapple picking device has the effects of simple, convenient, rapid and labor-saving operation.

Preferably, the handle is further provided with a soft sleeve, and the soft sleeve is provided with a notch capable of exposing the starting switch, the forward rotation switch and the reverse rotation switch.

Like this, the operator can hold on the soft cover on the handle, enables whole operation process more comfortable, and this is favorable to promoting operator's use experience.

Preferably, a flexible protective layer is arranged on the clamping finger and fixedly connected with the clamping finger.

Like this, on the one hand, set up on the centre gripping finger flexible protective layer and can form the protection to the pineapple, prevent to pick the in-process and damage the pineapple, on the other hand, the protective layer enables between centre gripping hand and the pineapple inseparabler, is favorable to promoting the centre gripping stability to the pineapple.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, in which:

fig. 1 is a top view of a pineapple picking device in a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a driving unit according to a first embodiment;

FIG. 3 is a circuit diagram of a motor driving circuit according to an embodiment;

fig. 4 is a schematic structural view of a clamping hand according to a second embodiment.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the scissors comprise a handle 1, scissors 2, a bottom plate 21, a first blade 22, a second blade 23, a first clamping hand 31, a second clamping hand 32, a support 301, a clamping finger 302, a driving unit 4, a motor 41, a gear 42, a rack 43, a first connecting rod 44, a second connecting rod 45, a soft sleeve 5, a starting switch 61 and a forward rotation switch 62.

The first embodiment is as follows:

as shown in fig. 1: device is picked to pineapple, including handle 1, shearing unit, clamping unit and drive unit 4, drive unit 4 can drive clamping unit and shearing unit action, shearing unit, clamping unit and drive unit 4 all set up in the front end of handle 1.

As shown in fig. 2: the shearing unit comprises a bottom plate 21 and scissors 2, the bottom plate 21 is a rectangular steel plate, the bottom plate 21 is fixedly welded at the front end of the handle 1, the scissors 2 comprise a first blade 22 and a second blade 23 which are hinged through a rotating shaft, and the rotating shafts of the first blade 22 and the second blade 23 are fixedly welded at the center position of the bottom plate 21.

The clamping unit comprises a first clamping hand 31 and a second clamping hand 32, the first clamping hand 31 is fixedly welded on the outer edge of the first blade 22, the second clamping hand 32 is fixedly welded on the outer edge of the first blade 22, the first clamping hand 31 and the second clamping hand 32 respectively comprise a bracket and three clamping fingers, the three clamping fingers are vertically and parallelly arranged, and the three clamping fingers are perpendicular to the bracket and fixedly welded; the bracket is welded and fixed with the outer edge of the blade. In the embodiment, the bracket and the clamping fingers are made of steel; all bond fixedly on the centre gripping finger of centre gripping hand has flexible protective layer, and in this embodiment, the protective layer is the sponge.

The driving unit 4 includes a motor 41, a gear 42, a rack 43, a first link 44, and a second link 45; the front end of the first connecting rod 44 is hinged with the tail part of the first blade 22 through a pin shaft, the front end of the second connecting rod 45 is hinged with the tail part of the second blade 23 through a pin shaft, and the rear ends of the first connecting rod 44 and the second connecting rod 45 are hinged with the front end of the rack 43 through a pin shaft; the gear 42 is welded and fixed with the output end of the motor 41, the gear 42 is meshed with the rack 43, and the rack 43 can be driven to move when the gear 42 rotates. In this embodiment, the motor 41 may be a 4632-370 type small motor 41 of new Yongtai, and the maximum torque of the motor 41 is 25 KG.

The rear part of the handle 1 is provided with a starting switch 61, a forward rotation switch 62 and a reverse rotation switch 63; as shown in fig. 3: on a driving circuit of the motor 41, a starting switch 61, a forward rotation switch 62 and a reverse rotation switch 63 are arranged on the handle 1; the contact end of the starting switch 61 is connected in series with the power supply loop of the motor 41, so that the power supply loop of the motor 41 can be switched on when the contact end of the starting switch 61 is closed; the contact end of the forward rotation switch 62 is connected in series to the forward rotation loop of the motor 41, so that the forward rotation loop of the motor 41 can be connected when the contact end of the forward rotation switch 62 is closed; the contact end of the reverse switch 63 is connected in series to the reverse circuit of the motor 41, so that the reverse circuit of the motor 41 can be connected when the contact end of the reverse switch 63 is closed. In this embodiment, dual power supplies are adopted, and the power supplies are dry batteries of 12V.

The rear part of the handle 1 is also sleeved with a soft sleeve 5, notches capable of exposing the starting switch 61, the forward rotation switch 62 and the reverse rotation switch 63 are integrally formed in the soft sleeve 5, the soft sleeve 5 and the handle 1 are fixedly bonded, and in the embodiment, the soft sleeve 5 is made of rubber.

The interior of the handle is a hollow chamber, and the dry battery and the lead wires on the driving circuit of the motor 41 are all placed in the hollow chamber of the handle.

The working process of the embodiment:

1) shearing and clamping

The operator holds the handle 1 of the pineapple picking device and aligns the scissors 2 and the holding hand with the pineapple (the scissors 2 are aligned with the vine of the pineapple). An operator firstly presses the starting switch 61 and then presses the forward rotation switch 62, a forward rotation loop of the motor 41 is connected, the motor 41 rotates forward, the gear 42 drives the rack 43 to move towards one side far away from the scissors 2, at the moment, the rack 43 drives the first blade 22 and the second blade 23 to gradually close through the first connecting rod 44 and the second connecting rod 45, the first clamping hand 31 and the second clamping hand 32 also gradually close, the first clamping hand 31 and the second clamping hand 32 clamp the pineapples as the motor 41 continues to rotate, and the first blade 22 and the second blade 23 also complete the cutting of the pineapple vines.

2) Placing

After cutting, an operator moves the pineapples to a pineapple collecting position, then presses a reverse switch 63, a reverse loop of the motor 41 is switched on, the motor 41 reverses, the gear 42 drives the rack 43 to move towards one side close to the scissors 2, the rack 43 drives the first blade 22 and the second blade 23 to gradually open through the first connecting rod 44 and the second connecting rod 45, the first clamping hand 31 and the second clamping hand 32 are also gradually opened, and finally placement of the pineapples is finished.

Example two:

compared with the first embodiment, the present embodiment is different only in that the clamping unit of the clamping unit is different in the present embodiment.

In this embodiment, the clamping unit includes two clamping hands, and two clamping hands are welded fastening on two blades of scissors 2 respectively.

As shown in fig. 4: the clamping hand comprises a bracket 301 and clamping fingers 302, wherein the bracket 301 and the clamping fingers 302 are made of hard elastic materials, and the bracket 301 and the clamping fingers 302 are arc-shaped. The number of the clamping fingers 302 is three, and the three clamping fingers 302 are respectively and uniformly arranged on the outer surface of the bracket 301. In this embodiment, the bracket 301 and the clamping fingers 302 are made of ABS plastic, and the bracket 301 and the clamping fingers 302 can be adhered and fixed by using special glue of ABS plastic.

In this embodiment, when clamping pineapples, the bracket 301 of the clamping hand is made of hard elastic material, so that the clamping hand has a certain adjustable space (within the deformation range of the bracket 301) on the premise of ensuring the clamping stability, and the clamping hand can stably clamp pineapples of different volumes; meanwhile, the support 301 and the clamping fingers 302 are both arc-shaped, and a supporting surface formed by the clamping fingers 302 arranged on the support 301 approaches to a spherical surface or an ellipsoidal surface, so that a clamping hand can be better contacted with the pineapple when clamping, and the clamping stability can be improved.

The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a device is picked to pineapple, includes handle, clamping unit, shearing unit and drive unit, and drive unit can drive clamping unit and shearing unit action, its characterized in that: the shearing unit comprises scissors, the clamping unit comprises two clamping hands, and the two clamping hands are respectively and fixedly connected to the outer side edges of the two blades of the scissors, so that the two clamping hands can be folded when the two blades of the scissors are folded.

2. The pineapple picking apparatus of claim 1, wherein: the clamping hand comprises a support and a plurality of clamping fingers, the clamping fingers are perpendicular to the support and are fixedly connected with the support, and the support is fixedly connected with the outer side edge of a blade of the scissors.

3. The pineapple picking apparatus of claim 2, wherein: the support and the clamping fingers are both arc-shaped, the clamping fingers are uniformly arranged on the outer surface of the support, and the support and the clamping fingers are both made of hard elastic materials.

4. The pineapple picking apparatus of claim 2, wherein: the shearing unit further comprises a bottom plate, the bottom plate is fixedly connected with the front end of the handle, and rotating shafts of the two blades of the scissors are fixedly connected with the bottom plate.

5. The device for picking pineapples according to claim 4, wherein: the driving unit comprises a motor, a gear, a rack, a first connecting rod and a second connecting rod;

6. The device for picking pineapples according to claim 5, wherein: the first connecting rod and the second connecting rod are identical in length.

7. The pineapple picking apparatus of claim 1, wherein: the handle is provided with a starting switch, a forward rotation switch and a reverse rotation switch; the contact end of the starting switch is connected in series with a power supply loop of the motor, so that the power supply loop of the motor can be switched on when the contact end of the starting switch is closed; the contact end of the forward rotation switch is connected to a forward rotation loop of the motor in series, so that the forward rotation loop of the motor can be connected when the contact end of the forward rotation switch is closed; the contact end of the reversing switch is connected to a reversing loop of the motor in series, so that the reversing loop of the motor can be connected when the contact end of the reversing switch is closed.

8. The pineapple picking apparatus of claim 1, wherein: the handle is also provided with a soft sleeve, and the soft sleeve is provided with a notch capable of exposing the starting switch, the forward rotation switch and the reverse rotation switch.

9. The pineapple picking apparatus of claim 2, wherein: the flexible protective layer is arranged on the clamping finger and fixedly connected with the clamping finger.