CN110012703B - A multi-tube pinellia seed stem sowing device - Google Patents

Abstract

The invention discloses a multi-tube pinellia seed stem sowing device, which mainly includes a fixed rod, a positioning rod, a seed dropping device, and a supporting device. The seed dropping device includes a seed dropping groove, a seed dropping tube, a protective sleeve, and a socket cone. The support device includes a traveling mechanism and a telescopic support rod device; the positioning rod is provided with multiple seed holes, and the positioning rod uses a telescopic rod. This device has a simple structure, is easy to control, is cheap, can plant a large amount at one time, and ensures accurate planting depth, planting density and planting row spacing. It has strong practicability, is suitable for pinellia cultivation in small and medium-sized areas, and is easy to popularize. Promote use.

Description

A multi-tube pinellia seed stem sowing device

Technical field

The invention relates to the technical field of planting Chinese medicinal materials, and in particular to a multi-tube pinellia seed stem sowing device.

Background technique

Pinellia ternata is a perennial herbaceous plant of the Araceae family. The plant is generally 15cm-30cm tall, mostly with single leaves. Reproductive buds can grow from the base of the petiole. The diameter of the underground tuber is generally 1cm-2cm and is approximately spherical. . Pinellia ternata tubers can be used as medicine and contain a variety of chemical components. Among them, β-sitosterol-glucoside, alkaloids (levophedrine, etc.), pinellia protein and inosine nucleoside are high in content, and contain a small amount of volatile oil, bird Glycosides and flavonoids, etc. Various secondary metabolites of Pinellia ternata have anti-tumor, anti-early pregnancy, and lowering blood pressure effects. Dig it in summer and autumn when the stems and leaves are lush, remove the outer bark and fibrous roots, and dry them in the sun or oven to obtain raw Pinellia ternata. Because of its high toxicity, it is often used after processing. According to the processing method, it can be divided into pinellia pinellia, ginger pinellia, clear pinellia, etc. It has pungent taste, warm nature, and is poisonous; it returns to the spleen, stomach, and lung meridians. It has the functions of drying dampness and resolving phlegm, harmonizing the body and strengthening the stomach, lowering Qi and stopping vomiting, eliminating pimples and dissipating stagnation. External use can reduce swelling and relieve pain.

At present, the output of Pinellia ternata comes from wild and artificial cultivation. With the rapid development of China's pharmaceutical industry, the national annual demand for Pinellia ternata is about 4.5 million kilograms, and the export volume is about 1.2 million to 2 million kilograms. The contradiction between supply and demand is increasing day by day. Large, wild Pinellia ternata resources obviously cannot meet the market demand. In order to increase the output of Pinellia ternata, artificial large-scale planting of Pinellia ternata is needed. Sowing of Pinellia ternata is the first step in the production of Pinellia ternata. Most of the domestic Pinellia ternata seeders are based on improved sowing equipment similar to Pinellia ternata seeds, such as corn and potatoes. Currently, there is no one specifically targeting the planting environment requirements and different regions of Pinellia ternata. Planter designed. Domestic pinellia cultivation mainly adopts the method of manual seeding. In some areas, pinellia seeding devices are used. For example, the patent number CN206629407U discloses "a seeding columbine for dry pinellia planting". This seeding device can ensure uniform planting density. , but reasonable planting row spacing and plant spacing cannot be guaranteed, and the one-time seeding amount is small. At the same time, moving the sowing columbine in the planting area may destroy the soil integrity of the planted area. In addition, some devices for sowing Pinellia ternata also have problems such as being expensive and difficult to operate.

Therefore, in order to solve the above-mentioned shortcomings, it is of positive significance to invent a multi-tube pinellia stem seeding device that is simple to operate, evenly planted, and cheap.

Contents of the invention

The purpose of the present invention is to provide a multi-tube pinellia seed stem sowing device to solve the above problems. During the pinellia seed stem sowing process, it can ensure accurate and uniform planting density, increase the one-time seeding amount, and reduce the number of workers. Reduce labor intensity and improve the efficiency and quality of Pinellia seed stem sowing.

In order to achieve the above object, the present invention provides the following technical solution, a multi-tube pinellia seed stem sowing device, including a fixed rod, a positioning rod, a seed dropping device, and a supporting device; the above supporting device includes a traveling mechanism and a telescopic support rod device. The lower end of the above-mentioned telescopic support rod device is connected to the above-mentioned traveling mechanism; one end of the above-mentioned fixed rod is provided with a controller, and handles are provided on both sides of the controller; the upper end surface of the above-mentioned fixed rod is equipped with a handle, and the lower end surface is fixedly installed with a crossbar; the lower end of the above-mentioned crossbar It is detachably connected to the upper end of the above-mentioned telescopic support rod device; the side of the above-mentioned fixed rod is provided with a positioning rod mounting hole, and the above-mentioned positioning rod mounting hole is provided with fixing holes on both sides of the upper and lower fixed rods; the above-mentioned positioning rod is a telescopic rod, and one end of the above-mentioned positioning rod A through hole is provided, and the above positioning rod and the above fixed rod are vertically connected through bolts passing through the fixed hole and the through hole; the above telescopic rod is evenly provided with seed holes, and the above seed holes are internal threads; the above seed placement device includes Seed placement trough, seed placement tube, and socket cone. The above-mentioned seed placement device can be detachably installed below the above-mentioned seed placement hole through the seed placement trough; the above-mentioned seed placement tube is installed below the above-mentioned seed placement trough, and the above-mentioned socket cone is installed above the above-mentioned seed placement trough. One side of the seed-dropping pipe; there is a valve inside the above-mentioned seed-dropping pipe, and the above-mentioned controller is connected with the above-mentioned valve.

A groove is provided below the above-mentioned crossbar, and the above-mentioned groove is composed of four baffles. There are holes on the two opposite baffles; the upper end of the above-mentioned telescopic support rod device extends into the groove and corresponds to the hole on the baffle. There is a circular through hole at the position, and the telescopic support rod device and the cross bar are fixed by bolts passing through the hole and the circular through hole.

The above-mentioned support device includes wheels, longitudinal beams, cross beams, and a telescopic support rod device. The above-mentioned telescopic support rod device includes a first section of the telescopic support rod, a second section of the telescopic support rod, a micro motor, and a telescopic rotating shaft. The above-mentioned through hole is provided in the above-mentioned The upper end of the second section of the telescopic support rod; the end of the second section of the telescopic support rod is provided with a sealing plate, and a round hole with an internal thread on the inner wall is provided at the center of the above-mentioned sealing plate; the lower end of the first section of the telescopic support rod is U-shaped The above-mentioned U-shaped slot is provided with a through hole; the second section of the telescopic support rod can telescopically slide in the first section of the telescopic support rod, and the cross-sectional shape of the two sections is rectangular; the above-mentioned micro motor is fixed on the telescopic support rod At the bottom of the first section of the support rod, the above-mentioned micro motor output shaft is connected to the above-mentioned telescopic rotating shaft; the above-mentioned telescopic rotating shaft is arranged in the first section of the telescopic support rod; the shaft body of the above-mentioned telescopic rotating shaft is provided with external threads, and the above-mentioned external threads are connected with the above-mentioned seal. The internal threads on the board are adapted; the above-mentioned micro motor is connected with the above-mentioned controller.

The above-mentioned running mechanism includes wheels, longitudinal beams, and cross beams. The above-mentioned longitudinal beams are provided with through holes. The above-mentioned through holes are adapted to the above-mentioned through holes in the U-shaped slot. The above-mentioned telescopic support rod device and the above-mentioned longitudinal beams pass through the through holes on the longitudinal beams. The bolts in the through holes in the U-shaped slot are vertically connected; the above-mentioned longitudinal beam is fixed and vertically connected to the above-mentioned crossbeam, and both ends of the above-mentioned crossbeam are connected to the wheels through omnidirectional bearings.

The above-mentioned fixing hole is provided with a nut fixing structure. The above-mentioned nut fixing structure includes a bending plate. The above-mentioned bending plate is fixedly connected with the above-mentioned fixing rod to form a clamping space for clamping the fixing nut. The above-mentioned bending plate structure is U-shaped as a whole. , the inner wall edge shape of the U-shaped opening is the same as the peripheral shape of the fixing nut, the fixing nut is arranged in the clamping space, and the inner wall of the U-shaped opening supports the fixing nut.

The above-mentioned positioning rod includes a first section of tube, a second section of tube, a third section of tube and a fourth section of tube arranged in sequence from left to right; one end of the above-mentioned second section of tube is freely slidable inside the first section of tube, and the fourth section of tube One end of the tube section can be freely slidably disposed in the third tube section, and the third tube section and the second section tube are fixedly connected.

The above-mentioned seeding groove is in the shape of a rounded cone, and the upper end of the above-mentioned seeding groove is a hollow cylinder. The outer wall of the above-mentioned cylinder has a threaded structure. The external threads at the upper end of the above-mentioned seeding groove are adapted to the internal threads of the above-mentioned seeding hole; the inside of the above-mentioned seeding groove is An arc-shaped bending plate; the above-mentioned seeding pipe is fixedly installed on the right side of the bottom of the seeding trough; the bottom end of the above-mentioned seeding pipe is an arc-shaped pipe; the above-mentioned valve is provided at the connection between the above-mentioned seeding pipe and the above-mentioned seeding trough; the above-mentioned valve is Remote control valve, a soft brush is provided on the face of the remote control valve, and the weight sensor is provided on the back of the remote control valve; a buffer layer is attached to the inside of the seed placement tube, and the buffer layer is made of silicone or foam; the external cover of the seed placement tube is A protective cover is provided, and the above-mentioned seeding trough, seeding pipe, and protective cover are all made of tempered glass; an audible alarm is provided on the outer wall of the above-mentioned protective cover, and the above-mentioned audible alarm is a buzzer; the above-mentioned controller is respectively connected with the audible alarm, The weight sensor is connected.

The upper end of the above-mentioned socket cone is a socket cone rod, the length of the above-mentioned socket cone rod is the same as the length of the above-mentioned seeding tube, and its lower end is a cone tip for inserting holes and facing downward; the inside of the above-mentioned socket cone is a hollow structure, and the above-mentioned The jack cone is made of stainless steel.

There are two controllers, which are respectively located at both ends of the fixed rod. Each controller is provided with handles on both sides.

A multi-tube pinellia seed stem sowing device also includes a weight sensor, a comparator, a trigger switch, a power supply and an audible alarm. The above-mentioned comparator is configured to be electrically connected to the above-mentioned weight sensor. When the weight sensed by the above-mentioned weight sensor is greater than the preset weight, the above-mentioned comparator outputs a high level to drive the above-mentioned trigger switch to close. When the above-mentioned trigger switch is closed, Under this condition, the above-mentioned trigger switch, power supply and alarm device form a closed circuit.

Compared with the existing technology, the beneficial effects of the present invention are: a multi-tube pinellia seed stem sowing device, which adopts multiple tubes for simultaneous planting, thereby improving the planting efficiency, thus saving planting costs; removable and retractable positioning The pole and seed placement device can adjust the row spacing and plant spacing when planting seed stems in real time according to the land conditions, and are easy to carry and place; the telescopic positioning pole setting can realize long-distance planting; the seed placement groove can be observed through the setting of the weight sensor The number of seed stems in the middle can be monitored in real time to prevent empty seeds; the length of the tip of the jack cone can be adjusted to ensure the depth of the seed stems when planting; the design of the telescopic support rod device can realize mechanized planting. Planting, saving manpower. The invention has a simple structure and strong maneuverability, and is suitable for planting pinellia in small and medium-sized areas.

Description of the drawings

Figure 1 is a top view of a multi-tube pinellia seed stem sowing device according to the present invention;

Figure 2 is a left view of Figure 1 of the present invention;

Figure 3 is a partial enlarged view of position A in Figure 1 of the present invention;

Figure 4 is a schematic structural diagram of the bending plate in Figure 3 of the present invention;

Figure 5 is a schematic diagram of a state of the positioning rod in a multi-tube pinellia seed stem sowing device according to the present invention;

Figure 6 is a partial enlarged view of B in Figure 2 of the present invention;

Figure 7 is a partially enlarged schematic view of C in Figure 6 of the present invention;

Figure 8 is a top view of the installation of the telescopic support rod in Figure 1;

Figure 9 is a schematic structural diagram of the crossbar in Figure 2 of the present invention;

Figure 10 is a schematic diagram of the internal structure of the telescopic support rod in Figure 2;

Explanation of reference symbols:

1-fixing rod; 2-seed hole; 3-handle; 4-controller; 5-up key; 6-down key; 7-handle; 8-cross bar; 9-positioning rod mounting hole; 10-fixed Hole; 101-bent plate; 1011-U-shaped opening inner wall; 102-fixing nut; 21-first tube; 211-through hole; 22-second tube; 23-third tube; 24-fourth Pipe section; 31-seed-dropping tank; 311-remote control valve; 3111-valve start button; 312-soft brush; 313-weight sensor; 32-seed-dropping tube; 321-buffer layer; 33-protective sleeve; 331- Sound alarm; 34-jack cone; 341-jack cone rod; 342-jack cone tip; 41-wheel; 411-omnidirectional bearing; 42-longitudinal beam; 43-cross beam; 44-telescopic support rod Device; 441-the first tube section of the telescopic support rod; 442-the second tube section of the telescopic support rod; 443-micro motor; 444-telescopic rotating shaft; 4421-sealing plate.

Detailed ways

The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

The invention provides a multi-tube pinellia seed stem sowing device, as shown in Figures 1-4, including a fixed rod 1, a positioning rod, a seed dropping device, and a supporting device. The fixed rod 1 is provided with a weight-reducing hole. Controllers 4 are provided at both ends of the rod 1. The controller 4 is provided with a valve start key 3111, an up key 5 and a down key 6. The controller 4 controls the opening of the remote control valve 311 through the valve start key 3111 to implement the seeding procedure. The controller 4 can control the operation of the micro motor 443 through the up key 5 and the down key 6, thereby controlling the lifting and lowering of the entire device to realize the alternating program operation of drilling and planting. There are handles 3 on both sides of the controller 4 to control the balance of the entire device. A handle 7 is installed in the middle of the fixed rod 1 to facilitate carrying after disassembly; a positioning rod mounting hole 9 and a fixing hole 10 are provided on both sides of the fixed rod 1, and the fixing hole 10 is provided with a nut fixing structure to ensure that the fixed rod and the positioning rod are Vertical installation is more secure.

The positioning rod is a telescopic rod, which has a hollow structure and is made of titanium alloy material; the telescopic rod includes a first tube 21, a second tube 22, a third tube 23, and a fourth tube 24. The second tube section 22 can telescopically slide within the first section tube 21, the fourth section tube 24 can telescopically slide within the third section tube 23, the third section tube 23 and the second section tube 22 are fixedly connected, and the third section tube 23 Same as the first tube section 21, the second tube section 22 and the fourth tube section 24 are the same. The length of each tube section is equal and the cross-sectional shape is rectangular. As shown in Figure 5, the retractable positioning rod is designed to facilitate carrying and placing after sowing.

As shown in Figures 6 and 7, the seeding groove 31 is in the shape of an inverted cone. The upper end of the seeding groove 31 is a hollow cylinder. The outer wall of the cylinder is a threaded structure. The external threads at the upper end of the seeding groove 31 are in contact with the internal threads of the seeding hole 2. Adaptable; there is an arc-shaped bending plate inside the seeding tank 31; the seeding tube 32 is fixedly installed on the right side of the bottom of the seeding tank 31; the bottom end of the seeding tube 32 is an arc-shaped tube; the seeding tube 32 and the seeding tank 31 A valve is provided at the connection; the valve is a remote control valve 311. The remote control valve 311 has a V-shaped shape composed of two valve plates, and the initial state of the remote control valve 311 is a closed state. The remote control valve 311 is provided with a soft brush 312 on its face, which has a certain buffering effect on the falling of the Pinellia ternata stems. The protective sleeve 33 is located outside the seed placement tube 32 and is adapted to the seed placement tube 32. The protective cover 33 is made of tempered glass to prevent damage to the seed placement tube 32; the jack cone rod at the upper end of the jack cone 34 341 is fixedly connected to the left side of the bottom of the seeding groove 31, and its lower end is a cone tip 342 that is used for inserting holes and faces downward. The length of the cone tip 342 can be adjusted; the interior of the plug cone 34 is a hollow structure, and the plug cone 34 It is made of stainless steel, and the length of the cone tip 342 can be adjusted to ensure the depth of planting seed stems; the socket cone is made of stainless steel, and the inside of the socket cone is a hollow structure, which reduces the weight of the equipment to a certain extent.

The weight sensor 313 is set on the back of the remote control valve 311, the sound alarm 331 is set on the outer wall of the protective cover 33, the comparator is configured to be electrically connected to the weight sensor 313, and the Pinellia ternata is planted in the seeding groove sensed by the weight sensor 313. When the weight of the stem is less than the preset weight, the comparator outputs a high level to drive the trigger switch to close. When the trigger switch is closed, the trigger switch, power supply and alarm device form a closed loop, which can realize a no-material alarm and prevent There is no Pinellia seed stem in the seeding trough, and the phenomenon of empty planting is carried out.

As shown in Figures 8-10, the support device includes wheels 41, longitudinal beams 42, cross beams 43, and a telescopic support rod device 44. The telescopic support rod device 44 includes a first section of the telescopic support rod 441 and a second section of the telescopic support rod 442. , micro motor 443, telescopic rotating shaft 444, the upper end of the second section of the telescopic support rod 442 is provided with a through hole, the through hole matches the hole on the cross bar 8, and the support device passes through the hole in the cross bar 8 and the second telescopic support rod. The bolts in the through holes at the upper end of the tube section 442 can be detachably installed under the fixed rod 1; a sealing plate 4421 is provided at the end of the second section tube 442 of the telescopic support rod, a round hole is provided at the center of the sealing plate 4421, and an internal thread is provided on the inner wall of the round hole. ; The lower end of the first section 441 of the telescopic support rod is a U-shaped slot, and a through hole is provided in the U-shaped slot; the second section 442 of the telescopic support rod can telescopically slide within the first section 441 of the telescopic support rod, and the two sections The lengths of the tubes are equal and the cross-sectional shapes are all rectangular; the micro motor 443 is fixed at the bottom of the first tube 441 of the telescopic support rod, and the output shaft of the micro motor 443 is connected to the telescopic rotating shaft 444; the telescopic rotating shaft 444 is arranged on the first section of the telescopic supporting rod. In the tube 441, the telescopic rotating shaft 444 is provided with external threads on its shaft, which are adapted to the internal threads on the sealing plate 4421; The support rod device and the longitudinal beam 42 are vertically connected through bolts passing through the through holes on the longitudinal beam 42 and the through holes on the U-shaped slot; the longitudinal beam 42 is fixed and vertically connected to the cross beam 43, and both ends of the cross beam 43 are connected to the wheels 41 through omnidirectional bearings 411 connected.

The working process of a multi-tube pinellia seed stem sowing device of the present invention: after the device reaches the sowing position, press the down key 6 on the controller, the micro motor 443 reverses, drives the telescopic rotating shaft 444 to rotate in the opposite direction, and the telescopic rotating shaft 444 The upper external thread cooperates with the internal thread on the sealing plate 4421 to drive the second section tube 442 to shrink inward to realize the descent of the device. The cone tip 342 is inserted into the hole. Press the up key 5 on the controller 4, and the micro motor 443 rotates forward, driving the telescopic rotating shaft 444 to rotate forward. The external thread on the telescopic rotating shaft 444 cooperates with the internal thread on the sealing plate 4421 to drive the second tube 442 to extend outward to support the rise of the device, and then press the valve start button. 3111, open the remote control valve 311, and the pinellia stems fall into the inserted holes. Press the down button 6, the up button 5, and the valve start button 3111 again, in a repetitive cycle, to achieve sowing of pinellia stems. When the weight of the Pinellia ternata stems in the seeding tank sensed by the weight sensor 313 is less than the preset weight, the comparator outputs a high level to drive the trigger switch to close. When the trigger switch is closed, the trigger switch, power supply and The alarm device forms a closed loop to realize the alarm and remind the staff to add pinellia stems in time to avoid empty planting.

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

Claims (5)

1. A multi-tube type seed stem sowing device in half summer, which is characterized in that: comprises a fixed rod (1), a positioning rod, a seed dropping device and a supporting device; the supporting device comprises a travelling mechanism and a telescopic supporting rod device (44), and the lower end of the telescopic supporting rod device (44) is connected with the travelling mechanism; one end of the fixed rod (1) is provided with a controller (4), and two sides of the controller (4) are provided with handles (3); a lifting handle (7) is arranged on the upper end surface of the fixed rod (1), and a cross rod (8) is fixedly arranged on the lower end surface of the fixed rod; the lower end of the cross rod (8) is detachably connected with the upper end of the telescopic support rod device (44); the side surface of the fixed rod (1) is provided with a positioning rod mounting hole (9), and two pairs of surfaces of the upper fixed rod (1) and the lower fixed rod (1) of the positioning rod mounting hole (9) are provided with fixing holes (10); the positioning rod is a telescopic rod, one end of the positioning rod is provided with a through hole (211), and the positioning rod is vertically connected with the fixed rod (1) through bolts penetrating through the fixed hole (10) and the through hole (211); seed dropping holes (2) are uniformly formed in the telescopic rod, and the seed dropping holes (2) are internal threads; the seed dropping device comprises a seed dropping groove (31), a seed dropping pipe (32) and a jack cone (34), and is detachably arranged below the seed dropping hole (2) through the seed dropping groove (31); the seed dropping pipe (32) is arranged below the seed dropping groove (31), and the jack cone is arranged on one side of the seed dropping pipe (32); a valve is arranged in the seed dropping pipe (32), and the controller (4) is connected with the valve;

the telescopic support rod device (44) comprises a first telescopic support rod section tube (441), a second telescopic support rod section tube (442), a miniature motor (443) and a telescopic rotating shaft (444), and the through hole is formed in the upper end of the second telescopic support rod section tube (442); a sealing plate (4421) is arranged at the tail end of the second section tube (442) of the telescopic support rod, and a round hole with an inner wall being an internal thread is arranged in the center of the sealing plate (4421); the lower end of the first section tube (441) of the telescopic support rod is provided with a U-shaped clamping groove, and the U-shaped clamping groove is provided with a through hole; the second section tube (442) of the telescopic support rod can slide in the first section tube (441) of the telescopic support rod in a telescopic manner, and the cross sections of the two section tubes are rectangular; the miniature motor (443) is fixed at the bottom of the first section tube (441) of the telescopic support rod, and the output shaft of the miniature motor (443) is in transmission connection with the telescopic rotating shaft (444); the telescopic rotating shaft (444) is arranged in the first section tube (441) of the telescopic supporting rod, an external thread is arranged on the shaft body of the telescopic rotating shaft (444), and the external thread is matched with an internal thread on the sealing plate (4421); the miniature motor (443) is connected with the controller (4);

the walking mechanism comprises wheels (41), longitudinal beams (42) and cross beams (43), through holes are formed in the longitudinal beams (42), and the telescopic support rod device is vertically connected with the longitudinal beams (42) through bolts penetrating through the through holes in the longitudinal beams (42) and the through holes in the U-shaped clamping grooves; the longitudinal beam (42) is fixedly and vertically connected with the cross beam (43), and two ends of the cross beam (43) are connected with the wheels (41) through omni-directional bearings (411);

the seed dropping groove (31) is in an inverted truncated cone shape, the upper end of the seed dropping groove (31) is a hollow cylinder, the outer wall of the cylinder is in a threaded structure, and the external threads at the upper end of the seed dropping groove (31) are matched with the internal threads of the seed dropping hole (2); an arc-shaped bent plate is arranged in the seed dropping groove (31); the bottom end of the seed dropping tube (32) is an arc tube; the valve is arranged at the joint of the seed dropping pipe (32) and the seed dropping groove (31); the valve is a remote control valve (311), a soft brush (312) is arranged on the face of the remote control valve (311), and a weight sensor (313) is arranged on the back of the remote control valve (311); a buffer layer (321) is stuck inside the seed dropping pipe (32), and the buffer layer (321) is made of silica gel or foam materials; the outside of the seed dropping pipe (32) is covered with a protective sleeve (33), and the seed dropping groove (31), the seed dropping pipe (32) and the protective sleeve (33) are made of toughened glass; an audible alarm (331) is arranged on the outer wall of the protective sleeve (33), and the audible alarm (331) is a buzzer; the controller (4) is respectively connected with the audible alarm (331) and the weight sensor (313);

the upper end of the jack cone (34) is provided with a jack cone rod (341), the length of the jack cone rod (341) is the same as that of the seed dropping tube (32), and the lower end of the jack cone is provided with a cone tip part (342) which is used for jack and faces downwards; the jack cone (34) is of a hollow structure, and the jack cone (34) is made of stainless steel.

2. A multi-tube type seed stem sowing device as defined in claim 1, wherein: a groove is formed below the cross rod (8), the groove consists of four baffles, and holes are formed in two opposite baffles; the upper end of the telescopic supporting rod device (44) stretches into the groove, a circular through hole is formed in the position corresponding to the hole on the baffle, and the telescopic supporting rod device (44) and the cross rod (8) are fixed through bolts penetrating through the hole and the circular through hole.

3. A multi-tube type seed stem sowing device as defined in claim 1, wherein: the fixing hole (10) is provided with a nut fixing structure, the nut fixing structure comprises a bending plate (101), the bending plate (101) is fixedly connected with the fixing rod (1) to form a clamping space for clamping the fixing nut (102), the whole structure of the bending plate (101) is U-shaped, the edge shape of the inner wall (1011) of the U-shaped opening is identical to the peripheral shape of the fixing nut (102), the fixing nut (102) is arranged in the clamping space, and the inner wall (1011) of the U-shaped opening supports the fixing nut (102).

4. A multi-tube type seed stem sowing device as defined in claim 1, wherein: the positioning rod comprises a first section pipe (21), a second section pipe (22), a third section pipe (23) and a fourth section pipe (24) which are connected in sequence; one end of the second joint pipe (22) can be freely and slidably arranged in the first joint pipe (21), one end of the fourth joint pipe (24) can be freely and slidably arranged in the third joint pipe (23), and the third joint pipe (23) is fixedly connected with the second joint pipe (22).

5. A multi-tube type seed stem sowing device as defined in claim 1, wherein: the two controllers (4) are respectively arranged at two ends of the fixed rod (1), and handles (3) are arranged at two sides of each controller (4).