Intelligent tea picking machine for hilly and mountainous environment

Abstract

The application discloses an intelligent tea picking machine for hilly and mountainous environments and relates to the technical field of tea picking. The moving direction of the caterpillar chassis is perpendicular to the self-rotation direction of the caterpillar chassis, which not only easily leads to imbalance of the machine and increases the risk of rollover, but also easily leads to deviation of the caterpillar on the caterpillar chassis, affecting the normal rotation of the subsequent caterpillar. The intelligent tea picking machine comprises two caterpillar chassis which are symmetrically distributed, the outer sides of the two caterpillar chassis are provided with protective covers, the upper end centers of the protective covers are fixedly provided with support frames, and a picking platform and an extension rod are respectively arranged between the two support frames. Through the support mechanism, the caterpillar in the caterpillar chassis can be prevented from directly contacting and rubbing against the ground in the process of adjusting the distance between the two caterpillar chassis through the extension rod, so that the stability of the equipment in the process of adjusting the distance between the caterpillar chassis can be improved, and the caterpillar can be prevented from deviating due to contact and movement of the caterpillar bottom with the ground.

Description

Technical Field

[0001] This invention relates to the field of tea harvesting technology, specifically to an intelligent tea harvesting machine for hilly and mountainous environments. Background Technology

[0002] Tea trees can be harvested in spring and autumn to make tea leaves, their seeds can be pressed for oil, and their trunks have a fine texture that can be used for carving. Tea leaves are rich in various nutrients and have special health benefits. In addition to lowering cholesterol and preventing atherosclerosis, they also have a good preventive effect against radiation, cancer, anemia and other diseases.

[0003] Chinese patent CN115735567A discloses a tea harvesting machine for hilly and mountainous environments. Driven by a hydraulic motor and the rotation of a tracked chassis, it relies on sliding friction to adjust the distance between two tracked chassis according to the width of the tea ridges before large-scale tea harvesting. However, during operation, when the hydraulic motor changes the distance between the two tracked chassis, the direction of movement of the tracked chassis is perpendicular to its rotation direction. Therefore, adjusting the distance not only easily leads to machine imbalance and increases the risk of tipping over, but also results in significant frictional resistance between the tracks and the ground, which can cause deviations in the tracks and affect the normal rotation of subsequent tracks. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent tea harvesting machine for hilly and mountainous environments to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A smart tea harvester for hilly and mountainous environments includes two symmetrically distributed tracked chassis. Protective covers are installed on the outer sides of both chassis. A support frame is fixedly installed at the upper center of each protective cover. A harvesting platform and a telescopic rod are installed between the two support frames, with the telescopic rod located above the harvesting platform. Both ends of the telescopic rod are fixedly connected to the two support frames. The machine also includes an embedded rod movably mounted on the outer side of the harvesting platform, with the embedded rod connected to the harvesting platform via a plug-in connection. The end of the embedded rod away from the harvesting platform is fixedly connected to the support frame. A support mechanism is used to support the tracked chassis, lifting them off the ground. This support mechanism is installed on the outer side of the protective covers. A drive assembly is used to drive the support mechanism to rotate, reducing its ground footprint. This drive assembly is installed between the protective covers and the support mechanism.

[0007] Preferably, the support mechanism includes a support frame installed on the upper side of the protective cover, and the support frame is movably sleeved on the outside of the support frame. Four lifting columns arranged in a rectangular array are fixedly installed at the lower end of the support frame. The lifting columns are used to drive the support frame to move up and down. A fixed seat is fixedly sleeved on the outside of the lifting column, and the connection between the fixed seat and the protective cover is a fixed connection.

[0008] Preferably, the outer side of the protective cover is equipped with a plurality of rollers distributed at equal intervals, and a support cover is movably sleeved on the outer side of the rollers. The rollers are rotatably connected to the support cover through axle pins. Anti-slip texture is provided on the outer side of the rollers. A support rod is fixedly embedded at the upper center of the support cover. A support column is installed at the upper end of the support rod, and the support rod is rotatably connected to the support column through a bearing.

[0009] Preferably, the drive assembly includes a sleeve that is movably fitted onto the outside of the support rod, and the connection between the sleeve and the protective cover is a fixed connection. The inner diameter of the sleeve is larger than the diameter of the support rod. The sleeve has an inclined arc groove inside, and vertical portions are respectively provided at both ends of the inclined arc groove, and the inclined arc groove and the vertical portions are interconnected.

[0010] Preferably, a pin is fixedly embedded on the outer side of the support rod corresponding to the inside of the sleeve, and a hemispherical part is provided at one end of the pin near the inner wall of the sleeve. The pin slides in contact with the sleeve through the oblique arc groove and the vertical part. The oblique arc groove can drive the support rod to deflect 90° through the pin. Two symmetrically distributed positioning components are installed on the outer side of the support rod corresponding to the inside of the support column.

[0011] Preferably, the positioning component includes a second pin that can move left and right inside the support column. The second pin has a hemispherical part at one end near the support column. A washer is fixedly sleeved on the outer side of the second pin to prevent the second pin from disengaging from the support column. A spring is movably sleeved on the outer side of the second pin, and the two ends of the spring are respectively in movable contact with the support column and the washer.

[0012] Preferably, the outer side of the support rod is provided with four hemispherical slots that are equidistantly distributed in a circle at the location of the positioning component, and the hemispherical part is movably engaged with the support rod through the hemispherical slots. On the side wall of the protective cover, two symmetrically distributed limiting blocks are fixedly installed on the outer side of the support rod. The limiting blocks are used to prevent the pin rod from moving inside the support column, and the connection between the pin rod and the limiting blocks is a movable abutment.

[0013] Preferably, two rows of limiting components are installed on the outer side of the protective cover, and the number of limiting components in each row is equal to that of the rollers. The limiting components include a limiting baffle that is movably embedded on the outer side of the protective cover. The limiting baffle is used to prevent the support column from moving upward. A limiting groove is opened on the outer side of the protective cover corresponding to the limiting baffle. Semi-circular strips are provided at both ends of the limiting baffle.

[0014] Preferably, the limiting baffle is rotatably connected to the protective cover via a limiting rotating groove and a positioning shaft. Two symmetrically distributed coil springs are fixedly sleeved on the outer side of the positioning shaft, and the outer ends of the coil springs are fixedly connected to the protective cover. A limiting rotating groove is provided on the side of the support column near the protective cover. A thickening block is fixedly installed on the upper end of the protective cover corresponding to the upper side of the coil springs. The thickening block is used to thicken the area where the coil springs are installed on the protective cover.

[0015] Preferably, the semi-circular strip at the lower end of the limiting baffle is in movable contact with the support column through the limiting rotating groove two. An electromagnetic suction block is fixedly embedded inside the support column corresponding to the limiting rotating groove two. The electromagnetic suction block is used to drive the limiting baffle to rotate. The connection between the electromagnetic suction block and the limiting baffle is a movable magnetic attraction. The circuits of the multiple electromagnetic suction blocks are connected in series with the circuits of the telescopic rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention uses a support mechanism in which a lifting column drives multiple rollers to move downwards, supporting the tracked chassis and lifting it off the ground. This prevents the tracks in the tracked chassis from directly contacting and rubbing against the ground during the adjustment of the distance between the two tracked chassis by the telescopic rod. This not only enhances the stability of the equipment during the adjustment of the tracked chassis distance but also prevents the tracks from shifting due to contact with the ground.

[0018] 2. By installing a drive assembly and a positioning assembly, the inclined arc groove in the drive assembly can drive the support rod and the roller to rotate 90° during the upward movement of the roller, so that the multiple rollers can turn in the same direction as the tracked chassis, thereby effectively avoiding multiple rollers from bulging out and being collided, and reducing the size of the equipment.

[0019] 3. By installing a limiting component, the electromagnetic suction block in the limiting component is connected in series with the telescopic rod, so that the electromagnetic suction block can drive the limiting baffle to rotate while the telescopic rod is running. The rotation of the limiting baffle abuts against the support column through the limiting rotating groove one and the limiting rotating groove two, which can reduce the burden on the lifting column during the rolling of the roller and avoid the bumps affecting the service life of the lifting column. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the operating state of the support mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram showing the removal of the tracked chassis in this invention;

[0023] Figure 4 This is a schematic diagram showing the connection between the support mechanism and the drive component of the present invention;

[0024] Figure 5 This is a side sectional view of the connection between the support mechanism and the drive component of the present invention;

[0025] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0026] Figure 7 This is a schematic diagram showing the side section of the support column and sleeve, and the disassembled support rod of the present invention;

[0027] Figure 8 This is a schematic diagram showing the connection between the limiting component and the support cover of the present invention;

[0028] Figure 9 For the present invention Figure 8 A schematic diagram of the side section at point B.

[0029] In the diagram: 1. Tracked chassis; 2. Protective cover; 3. Support frame; 4. Harvesting platform; 5. Telescopic rod; 6. Embedded rod; 7. Support frame; 8. Lifting column; 9. Fixed seat; 10. Roller; 11. Support cover; 12. Shaft pin; 13. Support rod; 14. Support column; 15. Bearing; 16. Sleeve; 17. Inclined arc groove; 18. Vertical part; 19. Pin one; 20. Pin two; 21. Hemispherical part one; 22. Washer; 23. Spring; 24. Hemispherical slot; 25. Limiting block; 26. Limiting baffle; 27. Limiting rotating groove one; 28. Semicircular strip; 29. ​​Positioning shaft; 30. Coil spring; 31. Limiting rotating groove two; 32. Electromagnetic suction block; 33. Thickened block. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1-4The intelligent tea harvester for hilly and mountainous environments shown in the diagram includes two symmetrically distributed tracked chassis 1. Protective covers 2 are installed on the outer sides of both tracked chassis 1. A support frame 3 is fixedly installed at the upper center of the protective cover 2. A harvesting platform 4 and a telescopic rod 5 are installed between the two support frames 3, with the telescopic rod 5 located above the harvesting platform 4. Both ends of the telescopic rod 5 are fixedly connected to the two support frames 3. It also includes an embedded rod 6 movably embedded on the outer side of the harvesting platform 4, with the embedded rod 6 connected to the harvesting platform 4 via a plug-in connection. The end of the embedded rod 6 away from the harvesting platform 4 is fixedly connected to the support frame 3. A support mechanism is used to support the tracked chassis 1, allowing it to lift off the ground. The support mechanism is installed on the outer side of the protective cover 2. A drive assembly is used to drive the support mechanism to rotate, reducing the ground footprint of the support mechanism. The drive assembly is installed between the protective cover 2 and the support mechanism.

[0032] The support mechanism includes a support frame 7 installed on the upper side of the protective cover 2, and the support frame 7 is movably sleeved on the outside of the support frame 3. Four lifting columns 8 arranged in a rectangular array are fixedly installed at the lower end of the support frame 7. The lifting columns 8 are used to drive the support frame 7 to move up and down. A fixed seat 9 is fixedly sleeved on the outside of the lifting column 8, and the connection between the fixed seat 9 and the protective cover 2 is a fixed connection.

[0033] Multiple rollers 10 are installed on the outer side of the protective cover 2, which are evenly distributed. A support cover 11 is movably sleeved on the outer side of the rollers 10, and the rollers 10 are rotatably connected to the support cover 11 through the shaft pin 12. Anti-slip texture is provided on the outer side of the rollers 10. A support rod 13 is fixedly embedded at the upper center of the support cover 11. A support column 14 is installed at the upper end of the support rod 13, and the support rod 13 is rotatably connected to the support column 14 through the bearing 15.

[0034] Working principle: Two tracked chassis 1 are located on both sides of the tea tree ridge. When the two tracked chassis 1 move and drive the picking platform 4 to move, the mechanical grippers installed on the picking platform 4 pick the tender buds of the tea tree.

[0035] When the device needs to adjust the width of the tea tree ridges, the operator controls the lifting column 8 in the support mechanism. The lifting column 8 drives the support frame 7 and multiple rollers 10 to move downwards. After the multiple rollers 10 contact the ground, the tracked chassis 1 lifts off the ground under the support of the multiple rollers 10, thus allowing the multiple rollers 10 to support the tracked chassis 1 (as per the instruction manual). Figure 2As shown), the operator then controls the telescopic rod 5 to operate. The telescopic rod 5 adjusts the distance between the two tracked chassis 1 according to the width of the tea tree ridges. This avoids direct contact and friction between the tracks in the tracked chassis 1 and the ground, thereby enhancing the stability of the equipment during the adjustment of the tracked chassis 1 distance and preventing track deviation caused by the movement of the tracked chassis 1 in contact with the ground. After the distance between the two tracked chassis 1 is adjusted according to the width of the tea tree ridges, the lifting column 8 drives multiple rollers 10 to move and reset.

[0036] Example 2: Please refer to Figure 2 , Figure 7 This embodiment further explains the first embodiment. The driving component includes a sleeve 16 that is movably sleeved on the outside of the support rod 13. The sleeve 16 and the protective cover 2 are connected in a fixed manner. The inner diameter of the sleeve 16 is larger than the diameter of the support rod 13. An oblique arc groove 17 is provided inside the sleeve 16. Vertical portions 18 are respectively provided at both ends of the oblique arc groove 17. The oblique arc groove 17 and the vertical portions 18 are interconnected.

[0037] A pin 19 is fixedly embedded inside the sleeve 16 on the outer side of the support rod 13, and a hemispherical part 2 is provided at one end of the pin 19 near the inner wall of the sleeve 16. The pin 19 slides in contact with the sleeve 16 through the oblique arc groove 17 and the vertical part 18. The oblique arc groove 17 can drive the support rod 13 to deflect 90° through the pin 19. Two symmetrically distributed positioning components are installed inside the support column 14 on the outer side of the support rod 13.

[0038] The positioning assembly includes a pin 20 that can move left and right inside the support column 14. A hemispherical part 21 is provided at one end of the pin 20 near the support rod 13. A washer 22 is fixedly sleeved on the outside of the pin 20 to prevent the pin 20 from disengaging from the support column 14. A spring 23 is movably sleeved on the outside of the pin 20, and the two ends of the spring 23 are respectively in movable contact with the support column 14 and the washer 22.

[0039] Four hemispherical slots 24 are provided on the outer side of the support rod 13 corresponding to the positioning component. The hemispherical part 21 is movably engaged with the support rod 13 through the hemispherical slots 24. Two symmetrically distributed limiting blocks 25 are fixedly installed on the side wall of the protective cover 2 corresponding to the outer side of the support rod 13. The limiting blocks 25 are used to prevent the pin 20 from moving inside the support column 14. The connection between the pin 20 and the limiting blocks 25 is a movable abutment.

[0040] Two rows of limiting components are installed on the outside of the protective cover 2, and the number of limiting components in each row is equal to that of the rollers 10. The limiting components include a limiting baffle 26 that is movably embedded on the outside of the protective cover 2. The limiting baffle 26 is used to prevent the support column 14 from moving upward. A limiting groove 27 is opened on the outside of the protective cover 2 corresponding to the limiting baffle 26. Semicircular strips 28 are provided at both ends of the limiting baffle 26.

[0041] In this embodiment: when the lifting column 8 drives the support rod 13 to move downward, the pin 19 on the outer side of the support rod 13 is located in the vertical part 18 at the upper end of the inclined arc groove 17. During the process of the pin 19 moving downward with the support rod 13, the sleeve 16 drives the support rod 13 and the roller 10 to rotate 90° through the inclined arc groove 17 and the pin 19 (at this time, the roller 10 is in contact with the ground), so that the rotation direction of the roller 10 is perpendicular to the rotation direction of the track chassis 1. During the rotation of the support rod 13, the hemispherical part 21 of the pin 20 is in contact with the spring 23. Driven by the compression force, the pin 20 is embedded in the hemispherical groove 24 on the outside of the support rod 13 to position the support rod 13. When the pin 20 moves with the support column 14 to the limit block 25, the track chassis 1 is lifted off the ground. Multiple rollers 10 support the track chassis 1, so that when the multiple rollers 10 are rolling, the pin 20 cannot move inside the support column 14 due to the block 25. This allows the pin 20 to position the support rod 13 and prevents the rollers 10 from changing their direction of movement during rolling.

[0042] When the tracked chassis 1 contacts the ground, the rollers 10 return to their original position. The rotation direction of the rollers 10 is the same as that of the tracked chassis 1, which can effectively prevent multiple rollers 10 from protruding and being collided, and can reduce the size of the equipment.

[0043] Example 3: Please refer to Figures 3-6 , Figure 8 , Figure 9 This embodiment further explains Example 2. The limiting baffle 26 is rotatably connected to the protective cover 2 through the limiting rotating groove 27 and the positioning shaft 29. Two symmetrically distributed coil springs 30 are fixedly sleeved on the outer side of the positioning shaft 29, and the outer ends of the coil springs 30 are fixedly connected to the protective cover 2. The support column 14 has a limiting rotating groove 31 on the side close to the protective cover 2. A thickening block 33 is fixedly installed on the upper end of the protective cover 2 corresponding to the upper side of the coil springs 30. The thickening block 33 is used to thicken the protective cover 2 at the location where the coil springs 30 are installed.

[0044] The semi-circular strip 28 at the lower end of the limiting baffle 26 is in movable contact with the support column 14 through the limiting rotating groove 31. An electromagnetic suction block 32 is fixedly embedded inside the support column 14 at the corresponding limiting rotating groove 31. The electromagnetic suction block 32 is used to drive the limiting baffle 26 to rotate, and the connection between the electromagnetic suction block 32 and the limiting baffle 26 is a movable magnetic attraction. The circuits of multiple electromagnetic suction blocks 32 are connected in series with the circuits of the telescopic rod 5.

[0045] In this embodiment: After the support mechanism supports the tracked chassis 1 to lift off the ground, the personnel control the telescopic rod 5 to run. Since the circuit of the telescopic rod 5 is connected in series with the circuit of multiple electromagnetic blocks 32, when the telescopic rod 5 runs, the electromagnetic blocks 32 are energized. The electromagnetic blocks 32 are energized and attract the limiting baffle 26, so that the semi-circular strip 28 at the lower end of the limiting baffle 26 rotates into the limiting groove 31. At this time, the support column 14 is blocked by the limiting baffle 26 and cannot move upward outside the protective cover 2. Thus, during the process of adjusting the distance between the two tracked chassis 1 by the roller 10, the limiting baffle 26 can effectively reduce the pressure on the lifting column 8 and avoid the bumps affecting the service life of the lifting column 8.

[0046] Once the spacing between the two tracked chassis 1 is adjusted and the equipment is stable, the telescopic rod 5 and the electromagnetic suction block 32 are de-energized. After the electromagnetic suction block 32 is de-energized, its suction force disappears. At this time, the limit baffle 26 will rotate into the limit slot 27 under the drive of the coil spring 30, releasing the obstruction to the support column 14, so that the multiple rollers 10 can move back to their original position under the drive of the lifting column 8.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent tea picking machine for hilly and mountainous environments, comprising two symmetrical caterpillar chassis, the outer sides of the two caterpillar chassis are each provided with a protective cover, the upper end center of the protective cover is fixedly provided with a support frame, a picking platform and a telescopic rod are respectively installed between the two support frames, and the telescopic rod is located on the upper side of the picking platform, the two ends of the telescopic rod are respectively fixedly connected with the two support frames, characterized in that, Also include: The activity is embedded in the inner embedded rod outside the picking platform, and the connection mode between the embedded rod and the picking platform is plug-in connection, and one end of the embedded rod away from the picking platform is fixedly connected with the support frame; Support mechanism for supporting the track chassis, so that the track chassis is separated from the ground, the support mechanism is installed outside the protective cover; Drive assembly for driving the support mechanism to rotate, reducing the support mechanism ground, drive assembly installed between the protective cover and the support mechanism; The support mechanism includes a support frame installed on the upper side of the protective cover, and the support frame is movably sleeved on the outer side of the support frame, and four lifting columns in a rectangular array are fixedly installed on the lower end of the support frame, and a fixed seat is fixedly sleeved on the outer side of the lifting column, and the connection mode between the fixed seat and the protective cover is fixed connection; The outer side of the protective cover is provided with a plurality of equally distributed rollers, the outer side of the roller is movably sleeved with a support cover, and the roller is rotatably connected with the support cover through a shaft pin, a support rod is fixedly embedded in the center of the upper end of the support cover, a support column is installed on the upper end of the support rod, and the support rod is rotatably connected with the support column through a bearing; The drive assembly includes a sleeve movably sleeved on the outer side of the support rod, and the connection mode between the sleeve and the protective cover is fixed connection, and an inclined arc groove is formed in the inner side of the sleeve, and two vertical parts are respectively arranged at two ends of the inclined arc groove, and the inclined arc groove and the vertical part are in communication with each other; The outer side of the support rod is fixedly embedded with a pin rod one corresponding to the inner side of the sleeve, and one end of the pin rod one close to the inner wall of the sleeve is provided with a hemispherical part two, the pin rod one is in sliding contact with the sleeve through the inclined arc groove and the vertical part, and two positioning assemblies in symmetrical distribution are installed on the outer side of the support rod corresponding to the inner side of the support column.

2. The intelligent tea harvesting machine for hilly terrain environment as claimed in claim 1 wherein: The positioning assembly includes a pin rod two capable of moving left and right in the support column, one end of the pin rod two close to the support rod is provided with a hemispherical part one, the outer side of the pin rod two is fixedly sleeved with a gasket, the outer side of the pin rod two is movably sleeved with a spring, and the two ends of the spring are movably abutted with the support column and the gasket respectively.

3. The intelligent tea harvesting machine for hilly terrain environment as claimed in claim 2 wherein: The outer side of the support rod is provided with four hemispherical clamping grooves in circumferential equidistant distribution corresponding to the positioning assembly, and the hemispherical part one is movably clamped with the support rod through the hemispherical clamping groove, and two limiting blocks in symmetrical distribution are fixedly installed on the side wall of the protective cover corresponding to the outer side of the support rod, and the connection mode between the pin rod two and the limiting block is movably abutted.

4. The intelligent tea harvesting machine for hilly terrain environment as claimed in claim 1 wherein: The outer side of the protective cover is provided with two rows of limiting assemblies, and the number of each row of limiting assemblies is equal to that of the rollers, the limiting assembly includes a limiting baffle movably embedded on the outer side of the protective cover, a limiting rotating groove one is formed on the outer side of the protective cover corresponding to the limiting baffle, and a semicircular strip part is arranged at both ends of the limiting baffle.

5. The intelligent tea harvesting machine for hilly terrain environment as claimed in claim 4 wherein: The limiting baffle is rotatably connected with the protective cover through the limiting rotating groove one and the positioning shaft, two limiting springs in symmetrical distribution are fixedly sleeved on the outer side of the positioning shaft, and the outer side end of the limiting spring is fixedly connected with the protective cover, a limiting rotating groove two is formed on one side of the support column close to the protective cover, and a thickening block is fixedly installed on the upper end of the protective cover corresponding to the upper side of the limiting spring.

6. The intelligent tea harvesting machine for hilly terrain environment as claimed in claim 5 wherein: The semicircular strip part at the lower end of the limiting baffle is movably abutted with the support column through the limiting rotating groove two, the electromagnetic suction block is fixedly embedded in the inside of the support column corresponding to the limiting rotating groove two, and the connection mode between the electromagnetic suction block and the limiting baffle is movable magnetic suction, and the lines of the plurality of electromagnetic suction blocks are connected in series with the lines of the telescopic rod.

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