CN111758391A

CN111758391A - Watermelon harvesting device

Info

Publication number: CN111758391A
Application number: CN202010700752.4A
Authority: CN
Inventors: 韩一波
Original assignee: Ningbo Yushan Technology Co ltd
Current assignee: Ningbo Yushan Technology Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2020-10-13

Abstract

The invention discloses a watermelon harvesting device; including the main part case, the main part incasement is equipped with the opening chamber of reaping to the left, it is equipped with watermelon conveying chamber to reap chamber right-hand member wall downside intercommunication, watermelon conveying chamber lower extreme wall intercommunication is equipped with the conveyer belt chamber, watermelon conveying chamber lower extreme wall intercommunication is equipped with the watermelon storage box that is located conveyer belt chamber right side, watermelon storage box left side is equipped with the motor that is located conveyer belt chamber downside, through results net with watermelon propelling movement to device in, thereby prevent that the watermelon from receiving the damage when access arrangement, later cut off watermelon vine by results net left side cutting device, prevent that watermelon vine from getting into the device along with the watermelon together, the watermelon transports to the water tank through the conveyer belt afterwards, thereby reduce the watermelon through the cushioning effect of water and receive the damage, also can reach a abluent effect simultaneously, to sum up, this device easy operation, and also will save a large amount of human costs under.

Description

Watermelon harvesting device

Technical Field

The invention relates to the technical field of harvesters, in particular to a watermelon harvesting device.

Background

The harvesting of present watermelon is reaped and is mostly relied on artifical the completion, and this kind of mode efficiency of reaping the watermelon is lower, and the watermelon is transporting the easy damage of in-process, also will waste a large amount of human costs simultaneously, and present watermelon is reaped and is utilized and cross the huge conveyer belt and the manpower of melon field top to pick harvesting and transporting that realize the watermelon, and such watermelon harvesting apparatus cost is higher, and still need waste a large amount of human costs.

Disclosure of Invention

Aiming at the technical defects, the invention provides a watermelon harvesting device which can overcome the defects.

The invention relates to a watermelon harvesting device, which comprises a main body box, wherein a harvesting cavity with a left opening is arranged in the main body box, a watermelon conveying cavity is communicated and arranged on the lower side of the right end wall of the harvesting cavity, a conveyor belt cavity is communicated and arranged on the lower end wall of the watermelon conveying cavity, a watermelon storage box positioned on the right side of the conveyor belt cavity is communicated and arranged on the lower end wall of the watermelon conveying cavity, a motor positioned on the lower side of the conveyor belt cavity is arranged on the left side of the watermelon storage box, an overflow channel cavity is communicated and arranged at the upper end of the right end wall of the watermelon storage box, an overflow box is communicated and arranged on the right end wall of the overflow channel cavity, a floating block cavity is communicated and arranged at the lower end of the left end wall of the overflow box, a water level slide block cavity is communicated and arranged at the upper end of the left end wall of the, the utility model discloses a harvester, including conveyer belt chamber, front wheel chamber, baffle, main part case, motor, end face, conveyer belt chamber front side is equipped with the gear chamber, the terminal intercommunication of gear chamber left end wall downside is equipped with front wheel pulley chamber, front wheel pulley chamber left end wall intercommunication is equipped with push plate pulley chamber, main part case left end face with gather together the baffle for symmetrical fixedly connected with around the center reaping the chamber, main part incasement normal running fit is connected with and is located the overflow case downside just extends to external rear axle to both sides around, terminal surface fixedly connected with rear wheel around the rear axle, the motor left side is equipped with and is located conveyer belt chamber downside and with the corresponding front wheel axle of rear wheel axle, the front wheel of terminal surface.

On the basis of the technical scheme, a push plate shaft which extends forwards and penetrates through the harvesting cavity into the push plate belt pulley cavity is connected in a rotationally matched manner in the rear end wall of the harvesting cavity, a push plate is fixedly connected to the lower end surface of the push plate shaft in an initial state, a cutting box is fixedly connected to the lower side of the left end surface of the push plate, a cutting spring cavity is arranged in the cutting box, the lower end wall of the cutting spring cavity is communicated with a cutter plate cavity with a downward opening, a cutting slide block is connected in the cutting spring cavity in a sliding matched manner, a cutting spring is fixedly connected between the upper end surface of the cutting slide block and the upper end wall of the cutting spring cavity, a cutting shaft which is connected with the annular channel cavity in a sliding matched manner is fixedly connected to the lower end surface of the cutting shaft, a cutter plate which is positioned in the cutter plate cavity is fixedly connected to the lower end surface, the right end face of the net pushing supporting plate is fixedly connected with a harvesting net pushing plate.

On the basis of the technical scheme, conveyer belt intracavity left side be equipped with main part case rear end face normal running fit is connected and extends forward and runs through the conveyer belt chamber to with the driven voller axle that main part case front end face normal running fit is connected, conveyer belt intracavity right side be equipped with main part case rear end face normal running fit is connected and extends forward and runs through the conveyer belt chamber and gear chamber extremely with the drive roll axle that main part case front end face normal running fit is connected, the preceding extension of terminal surface fixedly connected with runs through before the motor gear chamber extremely with the motor shaft that main part case front end face normal running fit is connected.

On the basis of the technical scheme, conveyer belt intracavity left side be equipped with driven voller of driven roller axle fixed connection, conveyer belt intracavity right side be equipped with drive roller axle fixed connection's drive roll, the driven voller with power fit is connected with the conveyer belt between the drive roll, equidistant fixedly connected with conveyer belt baffle of conveyer belt surface, oval expert's cavity surface evenly distributed is equipped with oval logical chamber, floating block intracavity downside is equipped with the floating block, water level slider intracavity sliding fit is connected with the water level slider, water level slider left end face with fixed fit is connected with the water level spring between the water level slider chamber left end wall.

On the basis of the technical scheme, a driving roller gear fixedly connected with the driving roller shaft is arranged on the upper side in the gear cavity, a motor gear which is connected with the driving roller gear in a power fit manner and fixedly connected with the motor shaft is arranged on the lower side in the gear cavity, a motor belt pulley fixedly connected with the motor shaft is arranged on the front side of the motor gear, a front wheel belt pulley fixedly connected with the front wheel shaft is arranged on the left side in the front wheel belt pulley cavity, a motor belt is connected between the motor belt pulley and the front wheel belt pulley in a power fit manner, a push plate main belt pulley fixedly connected with the front wheel shaft is arranged on the rear side of the front wheel belt pulley, a push plate belt pulley fixedly connected with the push plate shaft is arranged on the upper left side in the push plate belt pulley cavity, and a front wheel belt is connected between the push plate belt pulley and the push.

On the basis of the technical scheme, a transmission slide block cavity with an outward opening is arranged in the front wheel shaft, a slide block cavity with an inward opening and capable of corresponding to the transmission slide block cavity is arranged in the front wheel belt wheel, a transmission slide block is connected in the transmission slide block cavity in a sliding fit mode, a transmission spring is fixedly connected between the lower end face of the transmission slide block and the lower end wall of the transmission slide block cavity, a pull rope is fixedly connected between the lower end face of the transmission slide block and the left end face of the water level slide block, the thrust of the water level spring is smaller than that of the transmission spring, the attraction force between the floating block and the water level slide block is larger than that of the transmission spring, and the water level line in the overflow tank reaches the upper end wall of the floating block cavity when the watermelon in the watermelon.

The invention has the beneficial effects that: through the results net with watermelon propelling movement to the device in to prevent that the watermelon from receiving the damage when the access arrangement, cut off the watermelon vine by results net left side cutting device afterwards, prevent in the watermelon vine along with the watermelon access arrangement together, the watermelon is carried to the water tank in through the conveyer belt afterwards, thereby reduces the watermelon through the cushioning effect of water and receives the damage, also can reach a abluent effect simultaneously, to sum up, this device easy operation, and also will save a large amount of human costs under the high-efficient prerequisite of reaping the watermelon.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of a watermelon harvesting apparatus according to the present invention;

FIG. 2 is a schematic left side view of the structure of FIG. 1;

FIG. 3 is a schematic sectional view taken along the line A-A in FIG. 2;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

FIG. 5 is an enlarged view of the structure at C in FIG. 1;

FIG. 6 is a schematic sectional view taken along the direction D-D in FIG. 1;

FIG. 7 is an enlarged view of the structure at E in FIG. 1;

FIG. 8 is a sectional view of the structure of FIG. 2 taken along the direction F-F;

FIG. 9 is an enlarged view of the structure at G in FIG. 8;

fig. 10 is a structural diagram of a sectional view taken along the direction H-H in fig. 5.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-10, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

As shown in fig. 1-10, the watermelon harvesting device of the invention comprises a main body box 10, a harvesting cavity 11 with a left opening is arranged in the main body box 10, a watermelon conveying cavity 12 is communicated and arranged on the lower side of the right end wall of the harvesting cavity 11, a conveyer cavity 13 is communicated and arranged on the lower end wall of the watermelon conveying cavity 12, a watermelon storage box 14 positioned on the right side of the conveyer cavity 13 is communicated and arranged on the lower end wall of the watermelon conveying cavity 12, a motor 65 positioned on the lower side of the conveyer cavity 13 is arranged on the left side of the watermelon storage box 14, an overflow channel cavity 19 is communicated and arranged on the upper end of the right end wall of the watermelon storage box 14, an overflow box 64 is communicated and arranged on the right end wall of the overflow channel cavity 19, a floating block cavity 39 is communicated and arranged on the lower end of the left end wall of the overflow box 64, a slide block water level cavity 37 is communicated and arranged on the front and back end walls of the harvesting, annular channel chamber 25 lower extreme wall intercommunication is equipped with down sword chamber 26, conveyer belt chamber 13 front side is equipped with gear chamber 46, the terminal intercommunication of gear chamber 46 left end wall downside is equipped with front wheel pulley chamber 53, front wheel pulley chamber 53 left end wall intercommunication is equipped with push plate pulley chamber 44, main part case 10 left end face with reap chamber 11 and gather together baffle 20 for symmetrical fixedly connected with around the center, main part case 10 internal rotation cooperation is connected with and is located overflow case 64 downside and extend to external rear wheel axle 49 to both sides around, rear wheel axle 49 front and back terminal surface fixedly connected with rear wheel 62, motor 65 left side is equipped with and is located conveyer belt chamber 13 downside and with the corresponding front wheel axle 59 of rear wheel axle 49, the front wheel 18 of terminal surface fixedly connected with symmetry around the front wheel axle 59.

In addition, in one embodiment, a push plate shaft 42 extending forward through the harvesting chamber 11 to the push plate pulley chamber 44 is connected in a rotationally matched manner in the rear end wall of the harvesting chamber 11, in an initial state, a push plate 22 is fixedly connected to the lower end surface of the push plate shaft 42, a cutting box 24 is fixedly connected to the lower side of the left end surface of the push plate 22, a cutting spring chamber 28 is arranged in the cutting box 24, a knife plate chamber 32 with a downward opening is communicated with the lower end wall of the cutting spring chamber 28, a cutting slider 29 is connected in the cutting spring chamber 28 in a sliding fit manner, a cutting spring 27 is fixedly connected between the upper end surface of the cutting slider 29 and the upper end wall of the cutting spring chamber 28, a cutting shaft 30 connected with the annular channel chamber 25 in a sliding fit manner is fixedly connected to the lower end surface of the cutting shaft 30, and a knife plate 31 located in the knife plate chamber 32 is fixedly connected to, the lower side of the right end face of the push plate 22 is fixedly connected with a net pushing support plate 63 corresponding to the cutting box 24, and the right end face of the net pushing support plate 63 is fixedly connected with a harvesting net pushing 21.

In addition, in one embodiment, the left side in the belt cavity 13 is provided with a driven roller shaft 54 which is connected with the rear end face of the main body box 10 in a rotating fit manner and extends forwards to penetrate through the belt cavity 13 to be connected with the front end face of the main body box 10 in a rotating fit manner, the right side in the belt cavity 13 is provided with a driven roller shaft 54 which is connected with the rear end face of the main body box 10 in a rotating fit manner and extends forwards to penetrate through the belt cavity 13 and the gear cavity 46 to a driving roller shaft 47 which is connected with the front end face of the main body box 10 in a rotating fit manner, and the front end face of the motor 65 is fixedly connected with a motor shaft 51 which extends forwards to penetrate through the gear cavity 46 to be connected.

In addition, in one embodiment, a driven roller 16 fixedly connected with the driven roller shaft 54 is arranged on the left side in the conveyor belt cavity 13, a driving roller 15 fixedly connected with the driving roller shaft 47 is arranged on the right side in the conveyor belt cavity 13, a conveyor belt 35 is connected between the driven roller 16 and the driving roller 15 in a power fit mode, conveyor belt baffles 34 are fixedly connected on the outer surface of the conveyor belt 35 at equal intervals, oval through cavities 33 are uniformly distributed on the surface of the oval through cavities 33, floating blocks 38 are arranged on the inner lower side of the floating block cavities 39, water level sliders 40 are connected in the water level slider cavities 37 in a sliding fit mode, and water level springs 41 are fixedly connected between the left end face of each water level slider 40 and the left end wall of each water level slider cavity 37 in.

In addition, in one embodiment, a driving roller gear 45 fixedly connected with the driving roller shaft 47 is arranged at the inner upper side of the gear cavity 46, a motor gear 50 which is connected with the driving roller gear 45 in a power fit way and is fixedly connected with the motor shaft 51 is arranged at the inner lower side of the gear cavity 46, a motor belt pulley 52 fixedly connected with the motor shaft 51 is arranged at the front side of the motor gear 50, a front wheel belt wheel 61 fixedly connected with the front wheel shaft 59 is arranged on the left side in the front wheel belt wheel cavity 53, a motor belt 23 is connected between the motor belt pulley 52 and the front wheel belt pulley 61 in a power fit manner, a push plate main belt wheel 60 fixedly connected with the front wheel shaft 59 is arranged at the rear side of the front wheel belt wheel 61, a push plate belt pulley 43 fixedly connected with the push plate shaft 42 is arranged at the upper left side in the push plate belt pulley cavity 44, the push plate belt pulley 43 and the push plate main belt pulley 60 are connected with a front wheel belt 48 in a power fit manner.

In addition, in one embodiment, a transmission slider cavity 58 with an outward opening is arranged in the front wheel shaft 59, a slider cavity 56 with an inward opening and capable of corresponding to the transmission slider cavity 58 is arranged in the front wheel belt wheel 61, a transmission slider 55 is connected in the transmission slider cavity 58 in a sliding fit manner, a transmission spring 57 is fixedly connected between the lower end surface of the transmission slider 55 and the lower end wall of the transmission slider cavity 58, a pull rope 36 is fixedly connected between the lower end surface of the transmission slider 55 and the left end surface of the water level slider 40, the thrust of the water level spring 41 is smaller than the thrust of the transmission spring 57, the attraction force between the floating block 38 and the water level slider 40 is larger than the thrust of the transmission spring 57, and the water level line in the overflow tank 64 reaches the upper end wall of the floating block cavity 39 when the maximum number of watermelon in the watermelon storage tank 14 is reached.

The applicant will now specifically describe a watermelon harvesting apparatus of the present application with reference to the accompanying drawings of figures 1-10 and the description above: in the initial state, the motor 65 is in a closed state, the watermelon storage box 14 is filled with water, namely the water level reaches the lower end wall of the overflow channel cavity 19, no water enters the overflow box 64, so that the floating block 38 is positioned at the lower end wall of the floating block cavity 39, the water level slide block 40 is pulled by the pull rope 36 to cause the water level spring 41 to be in a compressed state, and the transmission spring 57 is in a relaxed state, so that the upper side of the transmission slide block 55 is positioned in the slide block cavity 56 and the lower side of the transmission slide block 55 is positioned in the transmission slide block cavity 58; when the harvester starts to work, the motor 65 is started to drive the motor shaft 51 to rotate, so as to drive the motor gear 50 and the motor belt pulley 52 to rotate, the motor belt pulley 52 drives the front wheel belt pulley 61 to rotate through the motor belt 23, the front wheel belt pulley 61 drives the front wheel shaft 59 to rotate through the transmission slide block 55, so as to drive the push plate main belt pulley 60 and the front wheel 18 to rotate, so that the harvester starts to move leftwards, meanwhile, the push plate main belt pulley 60 drives the push plate belt pulley 43 to rotate through the front wheel belt 48, the push plate belt pulley 43 drives the push plate 22 to rotate through the push plate shaft 42, so as to drive the cutting box 24, the push net supporting plate 63 and the harvesting push net 21 to rotate by taking the push plate shaft 42 as the center, meanwhile, the motor gear 50 drives the driving roller shaft 47 to rotate through the driving roller 15; when the device moves leftwards in a watermelon field, in order to prevent the device from rolling onto watermelons, the gathering baffle 20 gathers the watermelons inwards, meanwhile, the front end part of the plastic shovel plate 17 shovels into the lower end surface of the watermelons, at the moment, the harvesting push net 21 which continuously rotates by taking the push plate shaft 42 as the center pushes the watermelons into the harvesting cavity 11 along the plastic shovel plate 17, at the moment, the cutting shaft 30 also circularly moves along the annular channel cavities 25 on the front end wall and the rear end wall of the harvesting cavity 11, when the cutting shaft 30 moves into the lower knife cavity 26, namely, the push plate 22 is vertical to the lower end surface of the main body box 10, the cutting slide block 29 is pushed by a spring to drive the knife plate 31 to rapidly move downwards to the outside of the knife plate cavity 32 through the cutting shaft 30, the lower end of the knife plate 31 is contacted with the plastic shovel plate 17, at the moment, the watermelon vine connected to the right end surface of the harvesting push net 21 is cut off by the knife plate 31, then, meanwhile, the watermelon moves to the upper right direction to the watermelon conveying cavity 12 under the thrust of the harvesting push net 21, the conveying belt 35 drives the conveying belt baffle 34 to continuously move to the upper right direction, the watermelon is clamped on the oval through cavity 33 of the conveying belt 35 under the thrust of the conveying belt baffle 34, so that the watermelon can be stably conveyed to the tail end of the watermelon conveying cavity 12 in the watermelon conveying cavity 12, when the watermelon is conveyed to the tail end of the watermelon conveying cavity 12, the watermelon drops into the watermelon storage box 14 filled with water from the watermelon conveying cavity 12 under the rightward thrust of the conveying belt baffle 34, the water in the watermelon storage box 14 overflows a part of the water to the overflow box 64 through the overflow channel cavity 19, when the watermelon in the watermelon storage box 14 reaches the maximum storage capacity, the water level in the overflow box 64 reaches the highest level, at the moment, the floating block 38 floats to the upper end wall of the floating block cavity 39, the attractive force between the floating block 38 and the water level sliding block 40 overcomes the thrust of the transmission spring 57, and pulls the transmission sliding block 55 downwards So that the front wheel belt wheel 61 can not drive the front wheel shaft 59 to rotate through the transmission slide block 55, the front wheel 18 stops rotating, the device does not move leftwards any more, namely, the watermelon is stopped to be harvested leftwards, the motor 65 is turned off, and the device stops running.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a watermelon reaping apparatus, includes the main part case, its characterized in that: the harvesting device is characterized in that a harvesting cavity with a leftward opening is arranged in the main box, a watermelon conveying cavity is communicated and arranged on the lower side of the right end wall of the harvesting cavity, a conveyor belt cavity is communicated and arranged on the lower end wall of the watermelon conveying cavity, a watermelon storage box positioned on the right side of the conveyor belt cavity is communicated and arranged on the lower end wall of the watermelon storage box, a motor positioned on the lower side of the conveyor belt cavity is arranged on the left side of the watermelon storage box, an overflow channel cavity is communicated and arranged at the upper end of the right end wall of the watermelon storage box, an overflow box is communicated and arranged on the right end wall of the overflow box, a floating block cavity is communicated and arranged at the lower end of the left end wall of the floating block cavity, annular channel cavities with inward openings and symmetrically arranged in the front and back are communicated and arranged on the front end wall and the back end wall of the harvesting, the utility model discloses a harvester, including gear chamber, front wheel belt pulley chamber, baffle, main part case, motor, conveyer belt chamber, front wheel shaft, baffle, conveyer belt chamber, rear wheel shaft, motor left side is equipped with and is located conveyer belt chamber downside and with the corresponding front wheel shaft of rear wheel shaft, the terminal intercommunication of gear chamber left end wall downside is equipped with front wheel belt pulley chamber, front wheel belt pulley chamber left end wall intercommunication is equipped with push plate belt pulley chamber, main part case left end face with reap the chamber and gather together the baffle for central symmetry fixedly connected with, main part incasement normal running fit is connected with and is located overflow case downside and extend to external rear wheel shaft to both sides around, rear.

2. The watermelon harvesting apparatus of claim 1, wherein: a push plate shaft which extends forwards and penetrates through the harvesting cavity into the push plate belt pulley cavity is connected in a rotationally matched manner in the rear end wall of the harvesting cavity, a push plate is fixedly connected to the lower end surface of the push plate shaft in an initial state, a cutting box is fixedly connected to the lower side of the left end surface of the push plate, a cutting spring cavity is arranged in the cutting box, a cutter plate cavity with a downward opening is communicated with the lower end wall of the cutting spring cavity, a cutting slide block is connected in the cutting spring cavity in a sliding matched manner, a cutting spring is fixedly connected between the upper end surface of the cutting slide block and the upper end wall of the cutting spring cavity, a cutting shaft which is connected with the annular channel cavity in a sliding matched manner is fixedly connected to the lower end surface of the cutting shaft, a cutter plate positioned in the cutter plate cavity is fixedly connected to the lower end surface of the cutting, the right end face of the net pushing supporting plate is fixedly connected with a harvesting net pushing plate.

3. The watermelon harvesting apparatus of claim 1, wherein: conveyer belt intracavity left side be equipped with main part case rear end face normal running fit is connected and extends forward and run through the conveyer belt chamber to with the driven voller axle that main part case front end face normal running fit is connected, conveyer belt intracavity right side be equipped with main part case rear end face normal running fit is connected and extends forward and run through the conveyer belt chamber and the gear chamber to with the drive roll axle that main part case front end face normal running fit is connected, the preceding extension of terminal surface fixedly connected with runs through before the motor gear chamber to with the motor shaft that main part case front end face normal running fit is connected.

4. The watermelon harvesting apparatus of claim 3, wherein: conveyer belt intracavity left side be equipped with driven roll axle fixed connection's driven voller, conveyer belt intracavity right side be equipped with drive roll axle fixed connection's drive roll, the driven voller with power fit is connected with the conveyer belt between the drive roll, equidistant fixedly connected with conveyer belt baffle of conveyer belt surface, oval expert's cavity surface evenly distributed is equipped with oval logical chamber, floating block intracavity downside is equipped with the kicking block, water level slider intracavity sliding fit is connected with the water level slider, water level slider left end face with fixed fit is connected with the water level spring between the water level slider chamber left end wall.

5. The watermelon harvesting apparatus of claim 3, wherein: the upper side in the gear cavity is provided with a driving roller gear fixedly connected with a driving roller shaft, the lower side in the gear cavity is provided with a motor gear which is connected with the driving roller gear in a power fit manner and fixedly connected with a motor shaft, the front side of the motor gear is provided with a motor belt pulley fixedly connected with the motor shaft, the left side in the front wheel belt pulley cavity is provided with a front wheel belt pulley fixedly connected with a front wheel shaft, the motor belt pulley is connected with the front wheel belt pulley in a power fit manner, the rear side of the front wheel belt pulley is provided with a push plate main belt pulley fixedly connected with the front wheel shaft, the upper left side in the push plate belt pulley cavity is provided with a push plate belt pulley fixedly connected with the push plate shaft, and the push plate belt pulley is connected with the front wheel belt in a power fit manner.

6. The watermelon harvesting apparatus of claim 1, wherein: the novel water level storage device is characterized in that a transmission slide block cavity with an outward opening is arranged in the front wheel shaft, a slide block cavity with an inward opening and capable of corresponding to the transmission slide block cavity is arranged in the front wheel belt wheel, a transmission slide block is connected in the transmission slide block cavity in a sliding fit mode, a transmission spring is fixedly connected between the lower end face of the transmission slide block and the lower end wall of the transmission slide block cavity, a pull rope is fixedly connected between the lower end face of the transmission slide block and the left end face of the water level slide block, the thrust of the water level spring is smaller than that of the transmission spring, the attraction force between the floating block and the water level slide block is larger than that of the transmission spring, and the water level line in the overflow tank reaches the upper end wall of the.