Pepper harvester

Abstract

The invention belongs to the technical field of agriculture, and discloses a pepper harvester which comprises a frame and further comprises a stem cutting mechanism fixedly mounted on the frame; the stem cutting mechanism comprises a sleeve frame fixedly connected to the frame, a piston push rod is movably arranged in the sleeve frame in a sleeved mode, and one end of the piston push rod extends out of the sleeve frame and is fixedly connected with a cutter. According to the scheme, the frame can move by pushing a push handle and through transmission of the stem cutting mechanism, when a stop lever makes contact with the roots of pepper plants, a piston rod can move and compress gas in a sleeve rod and a sleeve frame, and when the end of a conical column penetrates through a hollow straight groove block, the periphery of the conical column can drive the hollow straight groove block and a tension spring combined rod to move, so that the pepper stems are cut. At the moment, compressed air in the sleeve rod and the sleeve frame can quickly push the piston push rod to move, so that the cutter cuts off the roots of pepper plants, and the problem that the efficiency is low when the pepper stems in the mountainous area are cut off by manually holding the sickle by hand is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agriculture, and specifically relates to a chili harvester. Background Art

[0002] When harvesting chili peppers, sometimes the rootstocks are cut in advance, gradually cutting off the water and nutrient supply of the plants by cutting the rootstocks, forcing the plants to concentrate and transfer the stored energy to the fruits, accelerating the ripening process of the fruits. After the chili peppers are ripe, the operators will pick the ripe chili peppers by putting the chili pepper plants into a chili pepper picking machine, thus completing the harvesting of the chili peppers.

[0003] Generally, for some chili peppers planted in mountainous areas, due to the remote geographical location and potholed roads, it is difficult for some small-sized mechanical equipment to reach the designated location for operation. Therefore, for the chili peppers planted in such areas, usually people manually hold sickles to perform the stem-cutting operation on the chili peppers. After the chili peppers are ripe, the operators will carry the chili pepper plants to the foot of the mountain to harvest the chili peppers. This method requires the operators to bend down for a long time to perform the stem-cutting operation on the chili pepper plants, which places a burden on the operators' bodies, and the efficiency of manually holding a sickle to cut the stems is low. Therefore, to solve the above problems, a chili harvester is proposed. Summary of the Invention

[0004] To solve the problems raised in the above background art, the present invention provides a chili harvester, which solves the problem of low efficiency when manually holding a sickle to cut the stems of chili peppers in mountainous areas.

[0005] To achieve the above object, the present invention provides the following technical solution: A chili harvester, including a vehicle frame, further including: a stem-cutting mechanism, which is fixedly installed on the vehicle frame; The stem-cutting mechanism includes a sleeve frame fixedly connected to the vehicle frame. A piston push rod is movably sleeved in the sleeve frame. One end of the piston push rod extends outside the sleeve frame and is fixedly connected to a cutter. A tension member is also fixedly sleeved in the sleeve frame, and one end of the tension member also extends into the piston push rod and is connected to the piston push rod. The piston push rod has a tendency to move into the sleeve frame under the tension of the tension member. One end of the sleeve frame is annularly and arrayedly provided with exhaust holes communicating with the outside; A group of branch pipes are also fixedly communicated with the sleeve frame. The ends of the branch pipes are fixedly communicated with a gas compression mechanism for pumping gas into the sleeve frame and compressing and storing energy; A buckle mechanism for locking the piston push rod is also arranged in the branch pipe. After the gas compression mechanism completes energy storage, it can control the buckle mechanism to release the lock on the piston push rod; A bracket is fixedly connected to one end of the sleeve frame. A push handle is hinged to the outer periphery of the branch pipe, and the outer periphery of the push handle can abut against the bracket.

[0006] Preferably, the gas compression mechanism includes a sleeve rod fixedly connected to one end of the branch pipe. A piston rod is movably sleeved inside the sleeve rod. One end of the piston rod extends outside the sleeve rod and is fixedly connected to a blocking rod located in front of the cutter. The sleeve rod forms an angle with the horizontal plane, and the height of the blocking rod is higher than that of the cutter.

[0007] Preferably, a hollow column is fixedly connected to one end of the piston push rod, and an annular card slot is formed on the hollow column. The buckle mechanism includes a tension spring combined rod arranged in the branch pipe. One end of the tension spring combined rod extends inside the sleeve rod and is fixedly connected to a hollow straight groove block. The other end of the tension spring combined rod is fixedly connected to a pin. In the initial state, the tension spring combined rod can make the pin snap into the annular card slot under its own elastic force. One end of the piston rod is fixedly connected to a conical column that can penetrate into the hollow straight groove block and drive the tension spring combined rod to move.

[0008] Preferably, auxiliary cutter mechanisms are arranged symmetrically and staggeredly on the vehicle frame. The auxiliary cutter mechanism includes a cutter body hinged to the vehicle frame and a spring telescopic rod in an initial extended state. One end of the spring telescopic rod is hinged to the middle of the cutter body, and sawteeth at the same height as the cutter are equidistantly arranged on the cutter body. The projection of the extension line of the cutter in the horizontal direction coincides with the sawteeth.

[0009] Preferably, the thickness of the sawteeth gradually increases from the cutter body to the free end of the sawteeth.

[0010] Preferably, guide rods are symmetrically arranged at one end of the vehicle frame in the advancing direction.

[0011] Preferably, a guide plate is further arranged on the vehicle frame above the stem cutting mechanism, and the guide plate is inclined from one side of the vehicle frame to the other side.

[0012] Preferably, an arc-shaped rod for guiding the pepper plants in the inclined direction of the guide plate is further arranged above the vehicle frame. Cylindrical rods are symmetrically and fixedly connected to the arc-shaped rod, and the other ends of the cylindrical rods are hinged to the push handle. A cross bar is fixedly connected to the push handle, and one end of the cylindrical rod can abut against the cross bar.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The above solution can move the vehicle frame by pushing the push handle and through the transmission of the stem cutting mechanism. When the shift lever touches the root of the pepper plant, it will cause the piston rod to move and compress the gas inside the sleeve rod and the sleeve frame. When the end of the tapered column passes through the hollow straight groove block, the outer periphery of the tapered column will drive the combination rod of the hollow straight groove block and the tension spring to move, so that the retaining pin disengages from the annular card slot. At this time, the compressed gas inside the sleeve rod and the sleeve frame will quickly push the piston push rod to move and cut the root of the pepper plant with the cutter. When the pepper plant falls down, the piston push rod will be reset by the tension of the tension member, and the gas inside the sleeve frame will be re-input into the sleeve rod to reset the piston rod, improving the operation efficiency and solving the problem of low efficiency in the stem cutting operation of peppers in mountainous areas with a sickle held by hand; In the above solution, when the root of the pepper plant contacts the saw teeth, the saw teeth will saw the outer periphery of the pepper plant during the process of moving with the vehicle frame. At the same time, due to the setting of the saw teeth, the width of the notch at the root and stem of the pepper plant will increase during the sawing process, thereby reducing the pressure on the cutter to cut the root of the pepper plant subsequently; In the above solution, when the gas compression mechanism contacts the root of the pepper plant, the arc-shaped rod will also contact the leaves of the pepper plant. When the root of the pepper plant is cut off, due to the reset of the gas compression mechanism, it will push the root of the pepper plant forward. At this time, the leaves of the pepper plant will contact the arc-shaped rod and fall to the side of the vehicle frame, avoiding the accumulation of pepper plants. Brief Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic side view plane structure diagram of the stem cutting mechanism of the present invention; Figure 3 It is a top view plane perspective view of the stem cutting mechanism of the present invention; Figure 4 It is a schematic diagram of the partial sectional structure of the top view of the stem cutting mechanism of the present invention; Figure 5 For Figure 4 The enlarged view of part A in Figure 6 It is a schematic diagram of the structure of the buckle assembly of the present invention; Figure 7 It is a top view plan of the present invention; Figure 8 It is a schematic diagram of the structure at the saw teeth of the present invention; Figure 9 It is a front view plan of the present invention.

[0015] In the figure: 1. Frame; 11. Bracket; 12. Push handle; 121. Cross bar; 13. Guide rod; 14. Guide plate; 2. Stem cutting mechanism; 21. Sleeve frame; 211. Exhaust hole; 212. Branch pipe; 22. Piston push rod; 221. Hollow column; 222. Annular clamping groove; 23. Cutting knife; 24. Tension member; 3. Gas compression mechanism; 31. Sleeve rod; 32. Piston rod; 321. Tapered column; 33. Stop bar; 4. Buckle mechanism; 41. Spring combination rod; 42. Pin; 43. Hollow straight groove block; 5. Auxiliary cutting knife mechanism; 51. Knife body; 52. Spring telescopic rod; 53. Saw teeth; 6. Arc rod; 61. Cylindrical rod. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] As Figures 1 to 9 shown, the present invention provides a chili harvester, including a frame 1, and further including: a stem cutting mechanism 2, which is fixedly installed on the frame 1; The stem cutting mechanism 2 includes a sleeve frame 21 fixedly connected to the frame 1. A piston push rod 22 is movably sleeved in the sleeve frame 21. One end of the piston push rod 22 extends to the outside of the sleeve frame 21 and is fixedly connected with a cutting knife 23. A tension member 24 is also fixedly sleeved in the sleeve frame 21, and one end of the tension member 24 also extends into the piston push rod 22 and is connected with the piston push rod 22. The piston push rod 22 has a tendency to move into the sleeve frame 21 under the tension of the tension member 24. One end of the sleeve frame 21 is annularly and arrayedly provided with exhaust holes 211 communicating with the outside; A group of branch pipes 212 are fixedly connected to the sleeve frame 21. The end of the branch pipe 212 is fixedly connected with a gas compression mechanism 3 for pumping gas into the sleeve frame 21 and compressing and storing energy; A buckle mechanism 4 for locking the piston push rod 22 is also arranged in the branch pipe 212. After the gas compression mechanism 3 completes energy storage, it can control the buckle mechanism 4 to release the lock on the piston push rod 22; A bracket 11 is fixedly connected to one end of the sleeve frame 21. A push handle 12 is hinged to the outer periphery of the branch pipe 212, and the outer periphery of the push handle 12 can abut against the bracket 11; The gas compression mechanism 3 includes a sleeve rod 31 fixedly connected to one end of the branch pipe 212. A piston rod 32 is movably sleeved in the sleeve rod 31. One end of the piston rod 32 extends to the outside of the sleeve rod 31 and is fixedly connected with a stop bar 33 located in front of the cutting knife 23; The sleeve rod 31 forms an angle with the horizontal plane, and the height of the stop rod 33 is higher than that of the cutting knife 23; one end of the piston push rod 22 is fixedly connected with a hollow column 221, and an annular clamping groove 222 is formed on the hollow column 221; The buckle mechanism 4 includes a tension spring combined rod 41 arranged in the branch pipeline 212. One end of the tension spring combined rod 41 extends into the sleeve rod 31 and is fixedly connected with a hollow straight groove block 43, and the other end of the tension spring combined rod 41 is fixedly connected with a pin 42. In the initial state, the tension spring combined rod 41 can make the pin 42 snap into the annular clamping groove 222 under its own elastic force; One end of the piston rod 32 is fixedly connected with a conical column 321 that can penetrate into the hollow straight groove block 43 and drive the tension spring combined rod 41 to move.

[0018] Adopting the above scheme, by pushing the push handle 12 and through the transmission of the stem cutting mechanism 2, the vehicle frame 1 can move. When the stop rod 33 touches the root of the pepper plant, the piston rod 32 will move and compress the gas in the sleeve rod 31 and the sleeve frame 21. When the end of the conical column 321 passes through the hollow straight groove block 43, the outer circumference of the conical column 321 will drive the hollow straight groove block 43 and the tension spring combined rod 41 to move, so that the pin 42 is disengaged from the annular clamping groove 222. At this time, the compressed gas in the sleeve rod 31 and the sleeve frame 21 will quickly push the piston push rod 22 to move to make the cutting knife 23 cut off the root of the pepper plant. When the pepper plant falls down, the piston push rod 22 will be reset under the tension of the tension member 24, and the gas in the sleeve frame 21 will be re-input into the sleeve rod 31 to reset the piston rod 32, improving the operation efficiency and solving the problem of low efficiency in the operation of manually holding a sickle to cut the stems of peppers in mountainous areas.

[0019] It should be noted that: the gas compression mechanism 3 and the buckle mechanism 4 can be respectively replaced by a micro air pump and a three-way solenoid valve. The three-way solenoid valve is respectively connected with the micro air pump, the sleeve frame 21 and the outside. By setting a pressure sensor between the cutting knife 23 and the piston push rod 22, when the cutting knife 23 contacts and is pressed by the root of the pepper plant, the pressure sensor detects the pressure. At this time, the micro air pump stops running, and synchronously the three-way solenoid valve connects the micro air pump and the sleeve frame 21, so that the compressed gas in the exhaust hole 211 is introduced into the sleeve frame 21 to push the piston push rod 22 to move; During reset, the pressure received by the pressure sensor disappears, and the three-way solenoid valve connects the sleeve frame 21 and the outside. At this time, the exhaust hole 211 is separately connected with the micro air pump, and at the same time the micro air pump runs to compress the gas in the exhaust hole 211. Synchronously, the piston push rod 22 is driven by the tension of the tension member 24 to reset, and the gas in the sleeve frame 21 is discharged to the outside through the three-way solenoid valve; The above scheme can save the working efficiency of the operator more by means of the micro air pump, the three-way solenoid valve and the pressure sensor.

[0020] Such as Figure 1 and Figures 7 to 9As shown in the figure, auxiliary cutting knife mechanisms 5 are symmetrically and staggeredly arranged on the frame 1; the auxiliary cutting knife mechanism 5 includes a knife body 51 hinged to the frame 1 and a spring telescopic rod 52 initially in an extended state. One end of the spring telescopic rod 52 is hinged to the middle of the knife body 51, and serrations 53 at the same height as the cutter 23 are equidistantly arranged on the knife body 51; the projection of the extension line of the cutter 23 in the horizontal direction coincides with the serrations 53; the thickness of the serrations 53 gradually thickens from the knife body 51 to the free end of the serrations 53. With the above solution, when the root of the pepper plant contacts the serrations 53, the serrations 53 will have a sawing effect on the outer periphery of the pepper plant during the movement following the frame 1. At the same time, due to the setting of the serrations 53, the width of the notch at the root and stem of the pepper plant will increase during the sawing process, thereby reducing the pressure when the subsequent cutter 23 cuts off the root of the pepper plant.

[0021] As Figures 7 to 9 shown, guide rods 13 are symmetrically arranged at one end of the frame 1 in the advancing direction. With the above solution, when the frame 1 advances, it drives the guide rods 13 to advance, which can ensure that the root of the pepper plant coincides with the cutter 23 stably during the advancement of the frame 1, thereby avoiding the situation that the cutter 23 cuts obliquely or fails to cut the root of the pepper plant.

[0022] As Figure 1 、 Figure 7 and Figure 9 shown, a guide plate 14 is also arranged on the frame 1 above the stem cutting mechanism 2, and the guide plate 14 is inclined from one side of the frame 1 to the other side. An arc-shaped rod 6 for guiding the pepper plant in the inclined direction of the guide plate 14 is also arranged above the frame 1. Cylindrical rods 61 are symmetrically fixed on the arc-shaped rod 6, and the other end of the cylindrical rod 61 is hinged to the push handle 12. A cross bar 121 is fixed on the push handle 12, and one end of the cylindrical rod 61 can abut against the cross bar 121. With the above solution, when the gas compression mechanism 3 contacts the root of the pepper plant, the arc-shaped rod 6 will also contact the leaves of the pepper plant. When the root of the pepper plant is cut off, due to the reset of the gas compression mechanism 3, it will push the root of the pepper plant forward. At this time, the leaves of the pepper plant will contact the arc-shaped rod 6 and fall to the side of the frame 1, avoiding the accumulation of pepper plants.

[0023] The working principle and usage process of the present invention: The operator pushes the push handle 12, and the transmission of the stem cutting mechanism 2 enables the vehicle frame 1 to move. When the shift lever 33 contacts the root of the pepper plant, the piston rod 32 will move and compress the gas in the sleeve rod 31 and the sleeve frame 21. When the end of the conical column 321 passes through the hollow straight groove block 43, the outer circumference of the conical column 321 will drive the hollow straight groove block 43 and the tension spring combined rod 41 to move, so that the pin 42 disengages from the annular card slot 222. At this time, the compressed gas in the sleeve rod 31 and the sleeve frame 21 will quickly push the piston push rod 22 to move, causing the cutter 23 to cut off the root of the pepper plant. When the pepper plant falls down, the piston push rod 22 will be reset under the tension of the tension member 24, and the gas in the sleeve frame 21 will be re-input into the sleeve rod 31 to reset the piston rod 32; Before the shift lever 33 contacts the pepper plant, it will first contact the saw teeth 53. When the saw teeth 53 move along with the vehicle frame 1, they will have a sawing effect on the outer circumference of the pepper plant. At the same time, due to the setting of the saw teeth 53, the width of the notch at the root of the pepper plant will increase during the sawing process, thereby reducing the pressure when the subsequent cutter 23 cuts off the root of the pepper plant; When the gas compression mechanism 3 contacts the root of the pepper plant, the arc rod 6 will also contact the leaves of the pepper plant. When the root of the pepper plant is cut off, due to the reset of the gas compression mechanism 3, it will push the root of the pepper plant forward. At this time, the leaves of the pepper plant will contact the arc rod 6 and fall to the side of the vehicle frame 1, avoiding the accumulation of pepper plants.

[0024] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chili harvester, comprising a vehicle frame (1), characterized in that, Further comprising: a stem cutting mechanism (2), which is fixedly installed on the vehicle frame (1); The stem cutting mechanism (2) includes a sleeve frame (21) fixedly connected to the vehicle frame (1). A piston push rod (22) is movably sleeved in the sleeve frame (21). One end of the piston push rod (22) extends to the outside of the sleeve frame (21) and is fixedly connected with a cutting knife (23). A tension member (24) is also fixedly sleeved in the sleeve frame (21). One end of the tension member (24) also extends into the piston push rod (22) and is connected with the piston push rod (22). The piston push rod (22) has a tendency to move into the sleeve frame (21) under the tension of the tension member (24). An exhaust hole (211) communicating with the outside is annularly arrayed at one end of the sleeve frame (21); A group of branch pipes (212) are also fixedly communicated with the sleeve frame (21). The end of the branch pipe (212) is fixedly communicated with a gas compression mechanism (3) for pumping gas into the sleeve frame (21) and compressing and storing energy; A buckle mechanism (4) for locking the piston push rod (22) is also arranged in the branch pipe (212). After the gas compression mechanism (3) completes energy storage, it can control the buckle mechanism (4) to release the lock on the piston push rod (22); A bracket (11) is fixedly connected to one end of the sleeve frame (21). A push handle (12) is hinged to the outer periphery of the branch pipe (212). The outer periphery of the push handle (12) can abut against the bracket (11); The gas compression mechanism (3) includes a sleeve rod (31) fixedly communicated with one end of the branch pipe (212). A piston rod (32) is movably sleeved in the sleeve rod (31). One end of the piston rod (32) extends to the outside of the sleeve rod (31) and is fixedly connected with a stop rod (33) located in front of the cutting knife (23); The sleeve rod (31) has an angle with the horizontal plane, and the height of the stop rod (33) is higher than that of the cutting knife (23).

2. The chili harvester according to claim 1, characterized in that: One end of the piston push rod (22) is fixedly connected with a hollow column (221), and an annular clamping groove (222) is formed on the hollow column (221); The buckle mechanism (4) includes a tension spring combined rod (41) arranged in the branch pipe (212). One end of the tension spring combined rod (41) extends into the sleeve rod (31) and is fixedly connected with a hollow straight groove block (43). The other end of the tension spring combined rod (41) is fixedly connected with a pin (42). In the initial state, the tension spring combined rod (41) can make the pin (42) snap into the annular clamping groove (222) under its own elastic force; One end of the piston rod (32) is fixedly connected with a conical column (321) that can penetrate into the hollow straight groove block (43) and drive the tension spring combined rod (41) to move.

3. The chili harvester according to claim 1, characterized in that: Auxiliary cutting knife mechanisms (5) are symmetrically and staggeredly arranged on the vehicle frame (1); The auxiliary cutting knife mechanism (5) includes a knife body (51) hinged to the vehicle frame (1) and a spring telescopic rod (52) initially in an extended state. One end of the spring telescopic rod (52) is hinged to the middle of the knife body (51). Saw teeth (53) at the same height as the cutting knife (23) are also equidistantly arranged on the knife body (51); The projection of the extension line of the cutting knife (23) in the horizontal direction coincides with the saw teeth (53).

4. The chili harvester according to claim 3, characterized in that: The thickness of the saw teeth (53) gradually increases from the knife body (51) to the free end of the saw teeth (53).

5. The chili harvester according to claim 1, wherein: Guide rods (13) are symmetrically arranged at one end of the vehicle frame (1) in the advancing direction.

6. The chili harvester according to claim 1, characterized in that: A guide plate (14) is further arranged on the vehicle frame (1) above the stem cutting mechanism (2), and the guide plate (14) is inclined from one side of the vehicle frame (1) to the other side.

7. The chili harvester according to claim 6, wherein: An arc-shaped rod (6) for guiding the pepper plants in the inclined direction of the guide plate (14) is further arranged above the vehicle frame (1). Cylindrical rods (61) are symmetrically and fixedly connected to the arc-shaped rod (6), and the other ends of the cylindrical rods (61) are hinged to the push handle (12). A cross bar (121) is fixedly connected to the push handle (12), and one end of the cylindrical rod (61) can abut against the cross bar (121).

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