Backpack fruit pickup device

Abstract

The present application provides a kind of knapsack fruit pickup device, including power mechanism, centrifugal volute fan, fan support seat, collection barrel, bottom cover, back frame, pickup tube, pickup operating rod, separation cover, centrifugal volute fan is set by fan support seat collection barrel upper portion, bottom cover is used to realize the opening and closure of the discharge port of collection barrel lower portion, the discharge end of pickup tube is connected with the inside of collection barrel, pickup operating rod is used to assist artificial realization to the control of pickup tube inlet end, separation cover is set in collection barrel, there is fruit falling gap between separation cover and collection barrel, and there is air supplement hole on collection barrel. The flexibility of human movement can adapt to different complex terrain environment, and the fruit on different pit and depression ground can be picked up by manually controlling the suction head, so as to ensure the fruit picking rate; further, the pickup device utilizes two-stage pneumatic flow layer, which can effectively separate the fruit and light impurities, thereby improving the fruit picking quality.

Description

Technical Field

[0001] This invention relates to the field of fruit collection technology, specifically a backpack-type fruit picker. Background Technology

[0002] Chestnuts, walnuts, and other nuts are widely cultivated as economic crops in the hilly areas of northern my country. Because chestnut and walnut trees are relatively tall, direct harvesting from the trees poses a significant risk. Since chestnuts and walnuts naturally fall from the trees after ripening, and are quite hard and resistant to impact, the current method of manual harvesting involves using tools to knock lower-lying fruits to the ground, while higher-lying fruits are left to fall naturally upon ripening. The fallen fruits are then collected manually. This manual harvesting is labor-intensive and physically demanding, and long-term exposure can have a significant impact on health. Furthermore, there are some automated nut-collecting devices on the market, such as the Chinese invention patent CN103229633B, which discloses a fruit-collecting machine including a frame, a walking system, a fruit-collecting system, and a drive system. The walking system includes wheels mounted on the frame; the fruit-collecting system is mounted on the frame; and the fruit-collecting system includes shovel rollers and a collection basket for collecting fruits, with the shovel rollers rotatably mounted on the frame. The walking mechanism of this fruit-collecting machine supports its movement on the ground, and multiple shovel rollers collect fruits from the ground. However, the power source for this walking mechanism is a tractor head. When using a tractor head as the power source, it is inconvenient for the device to move on hillsides with complex terrain. Additionally, the multiple shovel rollers are ineffective at collecting fruits distributed on uneven hillsides. Therefore, the aforementioned fruit-collecting device cannot be used for the automated collection of nuts such as chestnuts and walnuts growing on hillsides. Summary of the Invention

[0003] The purpose of this invention is to provide a backpack-type fruit picker, which can be carried by a person and can adapt to different complex terrain environments by utilizing the flexibility of human movement. By manually operating the suction head, it can pick up fruits on different uneven ground, ensuring the fruit picking rate. Furthermore, the picker utilizes a two-stage pneumatic flow layer, which can effectively separate fruits from light impurities, thereby improving the quality of fruit picking.

[0004] The technical solution adopted by this invention to solve its technical problem is: a backpack-type fruit picker, including a power mechanism, a centrifugal volute fan, a fan support base, a collection bucket, a bottom cover, a back frame, a pick-up pipe, a pick-up operating rod, and a separation cover. The power mechanism is used to drive the rotation of the centrifugal volute fan. The fan support base is located on the upper part of the collection bucket. The centrifugal volute fan is mounted on the fan support base through a shock-absorbing mechanism, and the air inlet pipe of the centrifugal volute fan is sealed to the upper air outlet pipe of the collection bucket. The bottom cover is used to open and close the lower discharge port of the collection bucket. The back frame is used to assist the operator in carrying the pickup device on their back. The discharge end of the pickup tube is connected to the inside of the collection bucket, and the discharge end of the pickup tube is located below the air outlet of the collection bucket. The pickup operation lever is used to assist the operator in controlling the inlet end of the pickup tube. The separation cover is set inside the collection bucket and is located below the discharge end of the pickup tube. A fruit drop gap is provided between the outer side wall of the separation cover and the inner side wall of the collection bucket. The upper part of the separation cover is an arc-shaped part, and a circle of air supply holes is provided on the side wall of the collection bucket opposite to the arc-shaped part.

[0005] Preferably, the shock absorption mechanism includes four springs, the upper ends of which are connected to the lower part of the volute of the centrifugal volute fan, and the lower parts of which are connected to the fan support base.

[0006] Furthermore, a flushing connector that communicates with the interior of the volute is provided on the side wall of the volute, several notches are provided at the bottom of the air inlet pipe of the volute, a chip removal pipe is provided at the air outlet of the volute, the outlet of the chip removal pipe is distributed obliquely downward, and the power mechanism is a small gasoline engine or an electric motor.

[0007] Furthermore, four threaded tubes are evenly spaced on the lower outer circumferential sidewall of the separation cover. The threaded tubes are connected to the sidewall of the collection bucket by screws, and the separation cover and the collection bucket are coaxially distributed.

[0008] Furthermore, an annular plate is fixedly installed on the lower outer side of the collection bucket, and two adjacent first support seats are provided on the annular plate. A sleeve is fixedly installed on one side of the bottom cover, and the sleeve is located between the two first support seats. The rotating end of a discharge operation rod passes through the two first support seats and the sleeve. Two elastic pins are used to realize the rotation and axial movement limit of the discharge operation rod and the sleeve, and the rotating end of the discharge operation rod can rotate freely relative to the first support seat.

[0009] Furthermore, a hanging rod is provided on the back frame. When the swing end of the material dispensing operation rod is hung on the hanging rod, the bottom cover closes to the bottom of the collection bucket.

[0010] Furthermore, a rubber pad is provided on the upper surface of the bottom cover, and a baffle plate with a notch is provided on the upper periphery of the bottom cover. When the bottom cover is closed, the baffle plate is located on the lower outer side of the collection bucket.

[0011] Furthermore, the back frame includes a square support frame, a back pad, and a carrying strap. The back pad is fixedly installed on the side of the square support frame away from the collection bucket. The lower part of the back pad is provided with a raised waist support. An extended plate of the fan support base is fixedly connected to the first mounting plate on the upper part of the square support frame. A clamping sleeve is provided on the collection bucket above the annular plate. The end of the clamping sleeve is fixedly connected to the second mounting plate on the lower part of the square support frame. The hanging rod is fixedly installed on the square support frame. A carrying strap hook is provided on both the upper and lower sides of the square support frame. The carrying strap hook is used to connect the movable end of the carrying strap to the square support frame.

[0012] Furthermore, the lower part of the fan support base is an arc-shaped cover, which is fitted over the upper outer side of the collection bucket, and an annular support plate is provided on the upper outer side of the collection bucket, with the bottom of the arc-shaped cover resting on the annular support plate.

[0013] Furthermore, a pickup head is provided at the front end of the pickup tube. The pickup operation lever includes a first operation lever and a second operation lever. A handle and a grip assembly are respectively provided at the rear and middle part of the first operation lever. A first sleeve is provided at the front end of the first operation lever and the rear end of the second operation lever. A locking tube is provided on one side of the first sleeve. A circumferential tooth is provided on the outer end face of the locking tube. After the two locking tubes are engaged and connected, the two first sleeves are connected and fixed by bolts. The front end of the second operation lever is connected to the pickup head through a second sleeve.

[0014] The beneficial effects of this invention are as follows: The invention has a simple structure and is easy to manufacture; the pickup is moved manually by carrying it on one's back, utilizing the flexibility of manual movement to allow it to operate in various complex terrain environments; when a small gasoline engine is used as the power source for the drive mechanism, the invention's operational durability and mobility are further improved; when picking up fruit, the position of the suction head is manually controlled to achieve fruit pickup, allowing the invention to collect fruit from uneven ground, thus ensuring its pickup function; after long-term use, high-pressure water can be injected into the blower and collection bucket through the flushing connector to clean the volute, impeller, and collection bucket, thus ensuring the long-term effective use of the invention; when the centrifugal volute blower is working, a negative pressure is generated inside the collection bucket, and outside air enters the collection bucket through the pickup pipe and air inlet. Inside the collection bucket, the air then enters the impeller negative pressure zone at high speed, and finally flows out to the outside atmosphere through the chip removal pipe. The collection pipe and air inlet are distributed vertically, thus creating a two-level airflow layer that enters the collection bucket from both. During the collection process, some discrete, lighter impurities enter the collection bucket from the collection pipe and are directly driven into the impeller negative pressure zone by the upper airflow. Meanwhile, some lighter impurities mixed with the fruit fall onto the separation hood along with the fruit. The separation hood effectively separates the lighter impurities from the fruit. The separated lighter impurities move upward under the influence of the lower airflow formed by the air inlet and are eventually also placed into the impeller negative pressure zone of the conveyor belt. The lighter impurities in the impeller negative pressure zone are directly discharged from the chip removal pipe as the impeller continues to rotate. Thus, during the fruit collection process, the separation of light impurities from the fruit is achieved, ensuring the quality of fruit collection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 A schematic diagram of the combination of the pickup control lever and the pickup tube;

[0018] Figure 3 This is a schematic diagram of the structure of the first jacket;

[0019] Figure 4 This is a schematic diagram of the combination of the backpack frame and the collection bucket;

[0020] Figure 5 This is a schematic diagram of the volute structure;

[0021] Figure 6 This is a schematic diagram of the separation shroud.

[0022] Figure 7 This is a schematic diagram showing the distribution of the separation hood inside the collection tank;

[0023] Figure 8 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 9 for Figure 2 Enlarged view at point B in the middle;

[0025] Figure 10 for Figure 2 Enlarged view at point C;

[0026] In the diagram: 1. Power mechanism; 2. Volute; 21. Flushing connector; 22. Chip removal pipe; 23. Air inlet pipe of volute; 231. Notch; 3. Fan support base; 31. Spring; 32. Extension plate; 33. Arc-shaped cover; 4. Collection bucket; 41. Air inlet pipe; 42. Air supply hole; 43. Clamping sleeve; 44. Annular plate; 45. Air outlet pipe; 451. Pressing ring; 46. Annular support plate; 47. Fruit drop gap; 5. Bottom cover; 51. Sleeve; 52. Elastic pin; 53. Material baffle; 6. Back frame; 61. Square support frame. 611 Hanging rod, 612 First mounting plate, 613 Second mounting plate, 62 Back pad, 621 Waist support, 7 Pickup tube, 71 Suction head, 711 Second arc plate, 81 First operating lever, 811 Handle, 812 Grip ring, 813 First arc plate, 82 Second operating lever, 83 First clamp, 831 Clip tube, 84 Second clamp, 9 Separation cover, 91 Arc part, 92 Threaded tube, 10 Discharge operating lever, 101 Rotating end, 102 Swing end. Detailed Implementation

[0027] The following will describe specific embodiments and appendices. Figure 1-10 The technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are only some preferred embodiments of the present invention, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] This invention provides a backpack-type fruit picker (such as...) Figure 1As shown, the device includes a power mechanism 1, a centrifugal volute fan, a fan support base 3, a collection bucket 4, a bottom cover 5, a back frame 6, a pickup tube 7, a pickup operating lever, and a separation cover 9. The power mechanism 1 is used to drive the rotation of the centrifugal volute fan. The centrifugal volute fan is a known technology product in the art, and it mainly includes an impeller and a volute 2. The impeller is fitted inside the volute 2, and the fan conveys airflow through the high-speed rotation of the impeller. The impeller is a prior art product, so its structure and working principle will not be described in detail here. In this specific embodiment, the power mechanism 1 can be a small gasoline engine or an electric motor. When a small gasoline engine is used as the power source, it is advantageous because it has good mobility and can operate for a long time. The performance allows the invention to operate for extended periods in the field. The fan support 3 is located on the upper part of the collection bucket 4. The centrifugal volute fan is mounted on the fan support 3 via a shock-absorbing mechanism. The inlet pipe of the centrifugal volute fan is sealed to the upper outlet pipe 45 of the collection bucket 4. In practical applications, the inlet pipe of the centrifugal volute fan is essentially the inlet pipe 23 of the volute. The inlet pipe 23 of the volute is connected to the upper outlet pipe 45 of the collection bucket 4 via a sleeve connection. To facilitate fitting the lower end of the inlet pipe 23 of the volute onto the outside of the outlet pipe 45, several notches 231 are provided on the inlet pipe 23 of the volute. The notches 231 improve the inlet of the volute. The radial deformation capability of the lower part of the air duct 23 allows it to be smoothly fitted onto the air outlet duct 45. To further improve the sealing connection between the air outlet duct 45 and the air inlet duct 23 of the volute, a clamping ring 451 is clamped and fitted onto the outside of the air outlet duct 45 and the air inlet duct 23 of the volute. The volute 2 is connected to the fan support 3 using a shock-absorbing mechanism, which effectively isolates the vibration generated during the operation of the centrifugal volute fan and the power drive mechanism, thereby improving the user comfort of the invention. The bottom cover 5 is used to open and close the discharge port at the bottom of the collection bucket 4. During the picking process, the bottom cover 5 is in the closed state. When it is necessary to discharge the fruit in the collection bucket 4, the bottom cover 5 is opened. Yes; the back frame 6 is used to assist the manual carrying of the picker on his back. The back frame 6 is used to carry the present invention, which makes it convenient for workers to carry it to different complex terrain environments for fruit picking operations, thereby improving the flexibility and mobility of the present invention; the discharge end of the picking tube 7 is connected to the inside of the collection bucket 4, and the discharge end of the picking tube 7 is located below the air outlet 45 of the collection bucket 4. The picking operation rod is used to assist the manual control of the inlet end of the picking tube 7. After the inlet end of the picking tube 7 is controlled and moved by the picking operation rod, the picking tube 7 can effectively pick up fruits located on different pits and depressions, thereby ensuring the fruit collection rate of the present invention;The separating cover 9 is installed inside the collecting bucket 4, and is located below the discharge end of the picking tube 7. A fruit drop gap 47 is provided between the outer wall of the separating cover 9 and the inner wall of the collecting bucket 4. In practical applications, when the fruit flowing out of the picking tube 7 enters the collecting bucket 4, the fruit falls onto the separating cover 9 under the action of gravity. Through the blocking and guiding effect of the separating cover 9, the fruit eventually flows into the fruit drop gap 47, passes through the fruit drop gap 47, and finally falls onto the bottom cover 5. In practical applications, the fruit drop gap 47 can be set according to the actual size of the chestnuts or walnuts, ensuring that the desired results can be achieved. Under conditions where fruit passes through, the blocking range of the separation cover 9 should be maximized to effectively block the fruit. The upper part of the separation cover 9 is an arc-shaped part 91. A ring of air supply holes 42 is provided on the side wall of the collection bucket 4 opposite to the arc-shaped part 91. In practical applications, the airflow flowing in from the air supply holes 42 can directly blow onto the side wall of the arc-shaped part 91. If the fruit and light impurities fall onto the arc-shaped part 91 at the same time, the fruit and light impurities are effectively dispersed under the blocking effect of the arc-shaped part 91. The dispersed light impurities can be carried upward by the airflow flowing in from the air supply holes 42, thereby achieving the removal of light impurities. When the centrifugal volute fan is working, a negative pressure is generated inside the collection bucket 4. Outside air enters the collection bucket 4 through the pickup pipe 7 and the air inlet 42, then enters the impeller negative pressure zone at high speed from the collection bucket 4, and is finally discharged into the outside atmosphere. The pickup pipe 7 and the air inlet 42 are distributed vertically, thus creating a two-level airflow layer in the collection bucket 4. During the pickup process, some discrete, lighter impurities enter the collection bucket 4 from the pickup pipe 7 and are directly driven into the impeller by the upper airflow. Within the negative pressure zone of the conveyor belt impeller, lighter impurities mixed with the fruit fall onto the separation hood 9 along with the fruit. The separation hood 9 effectively separates the impurities from the fruit. These lighter impurities are then carried upwards by the lower airflow generated by the air inlet 42, and ultimately return to the negative pressure zone of the impeller. As the impeller continues to rotate, these lighter impurities are directly discharged into the atmosphere. Thus, during the fruit picking process, the separation of lighter impurities from the fruit is achieved, ensuring the quality of fruit picking.

[0029] In the above embodiment, the specific implementation of the shock absorption mechanism is as follows: The shock absorption mechanism includes four springs 31, which are symmetrically distributed in pairs on the fan support base 3. The upper ends of the four springs 31 are all connected to the lower part of the volute 2 of the centrifugal volute fan, and the lower parts of the four springs 31 are all connected to the fan support base 3. Specifically, four upper spring seats are provided at the lower part of the volute 2, and the upper spring seats are fixed by plugging in the volute 2. Four lower spring seats are provided on the fan support base 3, and the lower spring seats are fixed to the fan support base 3 by bolt connection. By utilizing the extensibility of the springs 31, the vibration generated during the operation of the centrifugal volute fan and the power drive mechanism is effectively isolated to the collection bucket 4, thereby improving the carrying comfort of the present invention. Furthermore, since some dust will adhere to the collection bucket 4 and impeller during the collection process, a flushing connector 21, which communicates with the interior of the volute 2, is provided on the side wall of the volute 2 to facilitate the cleaning of the collection bucket 4 and impeller and ensure the cleanliness of the collection bucket 4 and the interior of the volute 2. The flushing connector 21 allows for the injection of high-pressure water, thereby cleaning the interior of the volute 2 and the collection bucket 4. To facilitate the directional discharge of lightweight impurities, a chip removal pipe 22 is provided at the air outlet of the volute 2, with the outlet of the chip removal pipe 22 angled downwards.

[0030] Based on the above embodiments, in order to facilitate the installation and fixation of the separation cover 9 inside the collection bucket 4, four threaded tubes 92 are provided at equal intervals on the lower outer circumferential side wall of the separation cover 9. The threaded tubes 92 are connected to the side wall of the collection bucket 4 by screws, and the separation cover 9 and the collection bucket 4 are coaxially distributed.

[0031] In practical applications, the specific implementation method for the bottom cover 5 to open and close at the bottom of the collection bucket 4 is as follows: A ring plate 44 is fixedly installed on the lower outer side of the collection bucket 4. The ring plate 44 is fixedly connected to the collection bucket 4 with screws. Two adjacent first support seats 441 are provided on the ring plate 44. Each first support seat 441 is provided with a through hole, and the two through holes are coaxially distributed. A sleeve 51 is fixedly installed on one side of the bottom cover 5, and the sleeve 51 is located between the two first support seats 441. The rotating end 101 of a feeding operation rod 10 passes through two first support seats 441 and a sleeve 51. Two elastic pins 52 are used to limit the rotation and axial movement of the feeding operation rod 10 and the sleeve 51. That is, the rotating end 101 of the feeding operation rod 10 can rotate synchronously with the sleeve 51. The rotating end 101 of the feeding operation rod 10 can rotate freely relative to the first support seats 441. That is, the first support seats 441 support the rotation of the rotating end 101, so that the rotating end 101 can drive the sleeve 51. 1. Synchronous rotation is achieved, which in turn enables the rotation of the bottom cover 5. During the picking process, the bottom cover 5 acts as a seal for the bottom of the collection bucket 4, thereby increasing the negative pressure at the outlet of the picking tube 7 and the air inlet 42. Here, a rubber pad is provided on the upper surface of the bottom cover 5. Furthermore, to facilitate the smooth flow of fruit from the bottom cover 5, a baffle plate 52 with a notch is provided on the upper outer periphery of the bottom cover 5. To improve the guiding effect of the baffle plate 52, when the bottom cover 5 is in the closed state, the baffle plate 52... The plate 52 is located on the lower outer side of the collection bucket 4. When the bottom cover 5 is in the closed state, in order to ensure the stability of the closing of the bottom cover 5, a hanging rod 611 is set on the back frame 6. When the swing end 102 of the feeding operation rod 10 is hung on the hanging rod 611, the bottom cover 5 is closed to the bottom of the collection bucket 4. When it is necessary to open the bottom cover 5, the swing end 102 is taken off from the hanging rod 611 and swings downward, thereby driving the bottom cover 5 to move downward and open. After opening, the fruit in the collection bucket 4 flows out under the action of gravity.

[0032] Based on the above embodiments, the specific implementation of the back frame 6 is as follows: The back frame 6 includes a square support frame 61, a back pad 62, and a carrying strap. The back pad 62 is fixedly disposed on the side of the square support frame 61 away from the collection bucket 4. A protruding waist support part 621 is provided at the lower part of the back pad 62. When the back frame 6 is placed on the back, the waist support part 621 fits precisely against the back of the person's waist, thereby achieving effective support for the back frame 6. With effective support, the carrying stability of the entire invention is achieved. An extended plate 32 of the fan support base 3 is fixedly connected to the first mounting plate 612 on the upper part of the square support frame 61. A ring plate 44 is provided on the collection bucket 4. The square clamping sleeve 43 is fixed to the collection bucket 4 with screws. The end of the clamping sleeve 43 is fixedly connected to the second mounting plate 613 at the lower part of the square support frame 61. The hanging rod 611 is fixedly set on the square support frame 61. A shoulder strap ear 614 is provided on both the upper and lower sides of the square support frame 61. The shoulder strap ear 614 is used to connect the movable end of the shoulder strap to the square support frame 61. Specifically, the back frame 6 is equipped with two shoulder straps. The two ends of each shoulder strap are respectively hung on the upper and lower shoulder strap ear 614 distributed on the same side of the square support frame 61. After the shoulder straps are installed, the two shoulder straps are put on the shoulders of the person, so that the invention can be carried on the back of the person.

[0033] To facilitate the effective fixed connection between the fan support base 3 and the collection bucket 4, the lower part of the fan support base 4 is an arc-shaped cover 33. The arc-shaped cover 33 is fitted onto the upper outer side of the collection bucket 4, and an annular support plate 461 is provided on the upper outer side of the collection bucket 4. The bottom of the arc-shaped cover 33 rests on the annular support plate 461, and the annular support plate 461 provides effective support for the arc-shaped cover 33.

[0034] Furthermore, the specific implementation method for controlling the pickup tube 7 using the pickup operating lever is as follows: The pickup tube 7 is a corrugated pipe with steel wire. The rear end of the pickup tube 7 is connected to the inside of the collection bucket 4 through an air inlet pipe 41 provided on the collection bucket 4. A suction head 711 is provided at the front end of the pickup tube 7. The suction head 711 has good rigidity and is not easily deformed. The suction head 711 is pressed and fixed to the front end of the pickup tube 7 by bolting two second arc-shaped plates 711. The pickup operating lever includes a first operating lever 81 and a second operating lever 82. A handle 811 and a grip assembly are respectively provided at the rear and middle part of the first operating lever 81. Specifically, the grip assembly includes a grip ring 812 and a first arc-shaped plate 813. The first arc-shaped plate 813 and the bottom of the grip ring 812 are fixedly clamped to the second operating lever 82 by bolting. The front end of the first operating lever 81 and the second operating lever 82 are connected to the second operating lever 82. Each of the two operating rods 82 has a first clamp 83 at its rear end. A locking tube 831 is provided on one side of the first clamp 83. A toothed ring 832 is provided on the outer end face of the locking tube 831. After the two locking tubes 831 are engaged, the two first clamps 83 are connected and fixed by bolts. After the two first clamps 83 are fixedly connected, the front end of the first operating rod 81 is stably connected to the rear end of the second operating rod 82. The front end of the second operating rod 82 is connected to the suction head 71 through a second clamp 84. The second clamp 84 is fixedly connected to the second arc plate 711 by screws. In practical applications, the relative angle of the first operating rod 81 and the second operating rod 82 can be adjusted by adjusting the engagement position of the two locking tubes 831, so that the suction head 71 can easily pick up the fruit on the ground by the worker by operating the first operating rod 81.

[0035] Before using this invention for fruit picking, ensure that the bottom cover 5 is closed. At the same time, adjust the relative angle of the first operating lever 81 and the second operating lever 82 as needed. Then, carry the invention on your back using the shoulder strap. After carrying it, start the power drive mechanism to carry out the subsequent fruit picking operation.

[0036] In this invention, "front," "back," "up," and "down" are relative positions used to facilitate the description of positional relationships, and therefore should not be interpreted as absolute positions or as limitations on the scope of protection.

[0037] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

[0038] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. For those skilled in the art, several improvements and modifications can be made without departing from the concept of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A backpack-type fruit picker, characterized in that, The device includes a power mechanism, a centrifugal volute fan, a fan support base, a collection bucket, a bottom cover, a back frame, a pickup tube, a pickup control lever, and a separation cover. The power mechanism drives the centrifugal volute fan to rotate. The fan support base is located on the upper part of the collection bucket. The centrifugal volute fan is mounted on the fan support base via a shock-absorbing mechanism, and the inlet pipe of the centrifugal volute fan is sealed to the upper outlet pipe of the collection bucket. The bottom cover is used to open and close the lower outlet of the collection bucket. The back frame assists in manually carrying the pickup device on one's back. The outlet end of the pickup tube communicates with the interior of the collection bucket and is located below the outlet pipe of the collection bucket. The pickup control lever assists in manually controlling the inlet end of the pickup tube. The separation cover is located inside the collection bucket and is located below the outlet end of the pickup tube. The outer wall of the separation cover is adjacent to the inner wall of the collection bucket. A fruit drop gap is provided between the walls. The upper part of the separation cover is an arc-shaped section. A ring of air supply holes is provided on the side wall of the collection bucket opposite to the arc-shaped section. An annular plate is fixedly installed on the lower outer side of the collection bucket. Two adjacent first support seats are provided on the annular plate. A sleeve is fixedly installed on one side of the bottom cover, and the sleeve is located between the two first support seats. The rotating end of a discharge operation rod passes through the two first support seats and the sleeve. Two elastic pins are used to realize the rotation and axial movement limit of the discharge operation rod and the sleeve. The rotating end of the discharge operation rod can rotate freely relative to the first support seat. A flushing joint that penetrates the inside of the volute is provided on the side wall of the volute. Several notches are provided at the bottom of the air inlet pipe of the volute. A chip removal pipe is provided at the air outlet of the volute. The outlet of the chip removal pipe is distributed obliquely downward. The power mechanism is a small gasoline engine or electric motor.

2. The backpack-type fruit picker according to claim 1, characterized in that, The shock absorption mechanism includes four springs, the upper ends of which are connected to the lower part of the volute of the centrifugal volute fan, and the lower parts of which are connected to the fan support base.

3. A backpack-type fruit picker according to claim 2, characterized in that, in Four threaded tubes are evenly spaced on the lower outer circumferential sidewall of the separation cover. The threaded tubes are connected to the sidewall of the collection bucket by screws, and the separation cover and the collection bucket are coaxially distributed.

4. A backpack-type fruit picker according to claim 3, characterized in that, in A hanging rod is provided on the back frame. When the swing end of the material feeding operation rod is hung on the hanging rod, the bottom cover closes to the bottom of the collection bucket.

5. A backpack-type fruit picker according to claim 4, characterized in that, in A rubber pad is provided on the upper surface of the bottom cover, and a baffle plate with a notch is provided on the upper periphery of the bottom cover. When the bottom cover is closed, the baffle plate is located on the lower outer side of the collection bucket.

6. A backpack-type fruit picker according to claim 4 or 5, characterized in that, The back frame includes a square support frame, a back pad, and a carrying strap. The back pad is fixedly installed on the side of the square support frame away from the collection bucket. The lower part of the back pad is provided with a raised waist support. An extended plate of the fan support base is fixedly connected to the first mounting plate on the upper part of the square support frame. A clamping sleeve is provided on the collection bucket above the annular plate. The end of the clamping sleeve is fixedly connected to the second mounting plate on the lower part of the square support frame. The hanging rod is fixedly installed on the square support frame. A carrying strap hook is provided on both the upper and lower sides of the square support frame. The carrying strap hook is used to connect the movable end of the carrying strap to the square support frame.

7. A backpack-type fruit picker according to claim 6, characterized in that, The lower part of the fan support base is an arc-shaped cover, which is fitted over the upper outer side of the collection tank. An annular support plate is provided on the upper outer side of the collection tank, and the bottom of the arc-shaped cover rests on the annular support plate.

8. A backpack-type fruit picker according to claim 7, characterized in that, A pickup head is provided at the front end of the pickup tube. The pickup operation lever includes a first operation lever and a second operation lever. A handle and a grip assembly are respectively provided at the rear and middle part of the first operation lever. A first sleeve is provided at the front end of the first operation lever and the rear end of the second operation lever. A locking tube is provided on one side of the first sleeve. A circle of teeth is provided on the outer end face of the locking tube. After the two locking tubes are engaged and connected, the two first sleeves are connected and fixed by bolts. The front end of the second operation lever is connected to the pickup head through a second sleeve.

Images