Multi-row synchronous row-spacing-adjustable cotton seeder

Abstract

The invention relates to the technical field of cotton seeding machines, in particular to a multi-row synchronous row-spacing-adjustable cotton seeding machine which comprises a shell, a supporting frame is fixedly connected to the rear end of the shell, four moving wheels are movably installed on the two sides of the shell and the two sides of the supporting frame, a supporting plate is slidably installed in the shell, and the supporting plate is movably installed in the shell. A discharging hopper is fixedly installed at the top of the supporting plate, the top of the discharging hopper communicates with a feeding port in the top of the shell, a plurality of discharging hoses are fixedly installed in the supporting plate, and the multiple discharging hoses are linearly distributed in the supporting plate. And the top of the discharging hose is fixedly connected to the bottom of the discharging funnel and communicates with the discharging funnel, the top of the discharging hose is fixedly connected with a discharging hard pipe, and an open groove is formed in the bottom of the shell. According to the invention, multi-row synchronous line spacing convenient adjustment is realized, efficient pit digging and sowing can be realized, and the cotton sowing efficiency and quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of cotton seeders, in particular to a cotton seeder capable of multiple rows of synchronous and adjustable row spacing. Background Art

[0002] With the development of society, cotton plays an extremely important role in the global economy and people's daily life. Cotton is the main raw material of the textile industry. Its fiber is soft, slender and has good moisture absorption and breathability. It can be processed into various types of textiles, from clothing, bedding to industrial fabrics. Cotton sowing is a key link in the cotton planting process. In large-scale cotton planting, the seeder plays an indispensable role.

[0003] Chinese invention patent CN117859464B discloses a cotton sowing machine, including a movable traveling vehicle, a transmission assembly arranged on the guide tube, a lifting tube arranged outside the guide tube, a soil covering assembly, a stirring assembly and a driving assembly arranged at the bottom of the lifting tube, and a hole drilling assembly arranged at the bottom of the guide tube; the guide tube drives the lifting tube to rise and fall through the transmission assembly, the stirring assembly stirs the soil of the nursery bed during the descent of the lifting tube, the hole drilling assembly drills holes during the descent of the lifting tube, and the soil covering assembly covers the soil on the sowing hole during the ascent of the lifting tube. In the process of the lifting tube descending and returning to its original position, the process of local loosening, sowing and soil covering is completed, and only one driving source is needed, the cost and use cost are low, and the planting cost of cotton is reduced.

[0004] However, the above patent cannot adjust the row spacing synchronously when in use, which will result in the need to adjust the row spacing according to different soil fertility, irrigation conditions or planting varieties. Since it cannot be adjusted synchronously, the sowing units can only be adjusted one by one, which is cumbersome, time-consuming and laborious. This not only prolongs the preparation time before sowing and reduces the overall efficiency of the sowing operation, but also may cause inconsistent row spacing due to errors in the adjustment process, affecting the growth space distribution of cotton plants. Uneven row spacing may cause cotton to compete with each other for light, water and nutrients during growth, causing some plants to grow poorly and reducing the yield and quality of cotton. In addition, inconsistent row spacing also brings difficulties to subsequent field management work, such as irrigation, fertilization, weeding, pest control, etc., increases management costs and labor intensity, and is not conducive to the large-scale and modern development of cotton planting. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the existing seeders in the background technology and to propose a multi-row synchronous and row-spacing adjustable cotton seeder.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a multi-row synchronous row spacing adjustable cotton seeder, comprising a shell, a rear end of the shell is fixedly connected to a support frame, both sides of the shell and the support frame are movably installed with moving wheels, the number of the moving wheels is four, a support plate is slidably installed inside the shell, a discharging funnel is fixedly installed on the top of the support plate, the top of the discharging funnel is connected with the feeding port at the top of the shell, a discharging hose is fixedly installed inside the support plate, and the discharging hose has a plurality of linearly distributed inside the support plate, the top of the discharging hose is fixedly connected to the bottom of the discharging funnel and is connected with the discharging funnel, the top of the discharging hose is fixedly connected to the bottom of the discharging funnel and is connected with the discharging funnel, a discharging hard pipe is fixedly connected to the top of the discharging hose, a slot is opened at the bottom of the shell, a plurality of the discharging hard pipes are located inside the slot, an adjusting mechanism is installed between the support plate and the discharging hard pipe, a lifting mechanism is installed between the moving wheel and the support plate, and a pit opening mechanism is installed at the bottom of the discharging hard pipe;

[0007] The adjustment mechanism includes a first adjustment plate, a first movable groove, a second adjustment plate, a second movable groove and an adjustment shaft. The first adjustment plate is located at the bottom of the support plate. Multiple first movable grooves are opened inside the first adjustment plate. The inclination angles of multiple first movable grooves are different. The spacing between the top ends of multiple first movable grooves is the same. The spacing between the bottom ends of multiple first movable grooves is the same. The second adjustment plate is fixedly connected to the bottom of the support plate and located at the rear end of the first adjustment plate. The second movable groove is opened inside the second adjustment plate. The adjustment shaft is fixedly connected to the rear end of the outer wall of the discharge rigid pipe. The adjustment shaft is located inside the first movable groove and the second movable groove. The first adjustment plate can slide up and down at the front end of the second adjustment plate.

[0008] Further: the adjustment mechanism also includes a slide groove, a slider, a limit shaft, a first limit groove, a fixing nut and a handle. The slide groove is opened on the inner wall of the second movable groove, the slider is fixedly connected to the rear end of the adjustment shaft, the slider is located inside the slide groove, the limit shaft has two fixed connections to the front end of the second adjustment plate, the first limit groove has two opened inside the first adjustment plate, the limit shaft is located inside the first limit groove, the fixing nut is threadedly installed on the front end of the limit shaft, the fixing nut is located at the front end of the first adjustment plate, and the handle has two fixed connections to the front end of the first adjustment plate.

[0009] Further: a connecting shaft is fixedly connected between the two opposite moving wheels, the front end of the connecting shaft is movably installed inside the shell, and the rear end of the connecting shaft is movably installed inside the support frame.

[0010] Further: the lifting mechanism includes a first connecting block, a second connecting block and a third connecting block, the first connecting block has two fixed connections to the outer walls of the two moving wheels at the front end, the second connecting block has two fixed connections to the two sides of the outer wall of the support plate, and the third connecting block is movably installed between the first connecting block and the second connecting block.

[0011] Further: the pit opening mechanism includes a conical pit opening block, a spring and a first ring, the conical pit opening block has four rings movably installed in an annular shape on the bottom of the outer wall of the discharge hard pipe, the spring is fixedly installed between the bottom of the discharge hard pipe and the conical pit opening block, and the first ring is slidably sleeved on the outer wall of the conical pit opening block.

[0012] Further: the pit opening mechanism also includes a support rod, a second ring, a limit block and a second limit groove, the support rod has multiple ring-shaped fixed connections to the top of the first ring, the second ring is fixedly connected to the tops of multiple support rods, the limit block has two fixed connections to the outer wall of the second ring, the second limit groove has two openings on both sides of the inner wall of the groove, and the limit block is located inside the second limit groove.

[0013] Further: a push plate is fixedly connected to the bottom of the support frame, and the push plate is in contact with the ground.

[0014] Further: a push handle is fixedly connected to the rear end of the outer wall of the shell, and the push handle is located on the top of the support frame.

[0015] Further: the outer wall of the shell is movably hinged with an inspection door, and the inspection door has two relatively installed at the front end of the outer wall of the shell.

[0016] The present invention has the following beneficial effects:

[0017] 1. Compared with the prior art, by setting a discharge funnel, a discharge hose and a discharge hard pipe, seeds can be placed in the discharge funnel and then enter the discharge hard pipe through the discharge hose; by setting a first adjusting plate, a first moving groove, a second adjusting plate, a second moving groove, an adjusting shaft and a handle, when the row spacing needs to be adjusted, the operator pulls the handle to make the first adjusting plate slide up and down at the front end of the second adjusting plate. When the first adjusting plate moves, the adjusting shaft can only move along the first moving groove and the second moving groove. The unique inclination angle design of multiple first moving grooves makes the horizontal movement distances of each adjusting shaft different when the first adjusting plate moves up and down. At the same time, due to the specific setting of the spacing between the top and bottom ends, the spacing between the multiple adjusting shafts is always uniform when they move, thereby realizing the synchronous row spacing adjustment of multiple discharge hard pipes; by setting a slide groove and a slider, the slider at the rear end of the adjusting shaft is located in the slide groove of the inner wall of the second moving groove, which provides a guide and limiting effect for the movement of the adjusting shaft 705. The present invention realizes synchronous adjustment of row spacing, is simple and convenient to operate, can quickly adapt to different planting needs, saves preparation time before sowing, improves sowing operation efficiency, ensures uniform row spacing, provides reasonable space for cotton growth, and is beneficial to improving cotton yield and quality.

[0018] 2. Compared with the prior art, by setting a moving wheel, a first connecting block, a second connecting block, a third connecting block and a support plate, when the moving wheel rotates with the movement of the seeder, the first connecting block fixed on the outer wall of the front moving wheel moves accordingly. Since the third connecting block is movably installed between the first connecting block and the second connecting block, the movement of the first connecting block is transmitted to the second connecting block through the third connecting block, thereby driving the support plate to move up and down, and at the same time driving the discharge hard pipe to move up and down; by setting a conical pit opening block, a spring and a first ring, when the support plate controls the discharge hard pipe to move downward, the conical pit opening block first contacts the ground and pushes the soil away, so that the conical pit opening block and the discharge hard pipe enter the soil. When the discharge hard pipe continues to move downward to a certain extent, the first ring detaches from the outer wall of the conical pit opening block. At this time, the spring releases the elastic force to push the conical pit opening block outward to form a suitable pit hole so that the seeds can fall into the pit smoothly. The invention can realize rapid pit digging and sowing, ensure consistent sowing depth, improve seed implantation rate, reduce seedling shortage, improve sowing efficiency, reduce labor intensity, lay a foundation for good growth of cotton, and improve cotton planting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0020] Figure 2 It is a schematic diagram of the structure of the second viewing angle of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the explosion structure of the regulating mechanism in the present invention;

[0023] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0024] Figure 6 for Figure 4 Another perspective structural diagram of;

[0025] Figure 7 for Figure 6 The enlarged structural diagram at B in the middle;

[0026] Figure 8 It is a schematic diagram of the explosion structure of the lifting mechanism in the present invention;

[0027] Fig. 9 for Figure 8 The enlarged structural diagram at C in the middle;

[0028] Fig.10 It is a schematic diagram of the explosion structure of the pit-opening mechanism in the present invention;

[0029] Fig.11 for Fig.10 Enlarged structural diagram at D in the middle.

[0030] Legend:

[0031] 1. Shell; 101. Support frame; 102. Slot; 103. Push handle; 2. Moving wheel; 201. Connecting shaft; 3. Support plate; 4. Discharging funnel; 5. Discharging hose; 6. Discharging hard pipe; 7. Adjustment mechanism; 701. First adjustment plate; 702. First moving groove; 703. Second adjustment plate; 704. Second moving groove; 705. Adjustment shaft; 706. Slide groove; 707. Sliding block; 708. Limiting shaft ; 709, first limiting groove; 710, fixing nut; 711, handle; 8, lifting mechanism; 801, first connecting block; 802, second connecting block; 803, third connecting block; 9, opening mechanism; 901, conical opening block; 902, spring; 903, first ring; 904, support rod; 905, second ring; 906, limiting block; 907, second limiting groove; 10, push plate; 11, inspection door. DETAILED DESCRIPTION

[0032] Reference Figure 1-11The present invention provides a multi-row synchronous row spacing adjustable cotton seeder: it comprises a shell 1, a support frame 101 is fixedly connected to the rear end of the shell 1, moving wheels 2 are movably installed on both sides of the shell 1 and the support frame 101, and the number of moving wheels 2 is four, a support plate 3 is slidably installed inside the shell 1, a discharge funnel 4 is fixedly installed on the top of the support plate 3, and the top of the discharge funnel 4 is connected with the feed port at the top of the shell 1, a discharge hose 5 is fixedly installed inside the support plate 3, and a plurality of discharge hoses 5 are linearly distributed inside the support plate 3, the top of the discharge hose 5 is fixedly connected to the bottom of the discharge funnel 4 and connected with the discharge funnel 4, a discharge hard pipe 6 is fixedly connected to the top of the discharge hose 5, a slot 102 is provided at the bottom of the shell 1, and a plurality of discharge hard pipes 6 are located inside the slot 102, an adjustment mechanism 7 is installed between the support plate 3 and the discharge hard pipe 6, and a lifting mechanism 8 is installed between the moving wheel 2 and the support plate 3, A pit opening mechanism 9 is installed at the bottom of the discharge rigid pipe 6; the adjustment mechanism 7 includes a first adjustment plate 701, a first movable groove 702, a second adjustment plate 703, a second movable groove 704 and an adjustment shaft 705. The first adjustment plate 701 is located at the bottom of the support plate 3, and multiple first movable grooves 702 are opened inside the first adjustment plate 701. The inclination angles of the multiple first movable grooves 702 are all different. The spacing between the top ends of the multiple first movable grooves 702 is the same, and the spacing between the bottom ends of the multiple first movable grooves 702 is the same. The second adjustment plate 703 is fixedly connected to the bottom of the support plate 3 and is located at the rear end of the first adjustment plate 701. The second movable groove 704 is opened inside the second adjustment plate 703. The adjustment shaft 705 is fixedly connected to the rear end of the outer wall of the discharge rigid pipe 6. The adjustment shaft 705 is located inside the first movable groove 702 and the second movable groove 704. The first adjustment plate 701 can slide up and down at the front end of the second adjustment plate 703.

[0033] First, put the seeds into the discharge funnel 4, and then enter the discharge hard pipe 6 through the discharge hose 5. When the row spacing needs to be adjusted, the first adjustment plate 701 is controlled to slide up and down at the front end of the second adjustment plate 703. When the first adjustment plate 701 moves, the adjustment shaft 705 can only move along the first moving groove 702 and the second moving groove 704. The unique inclination angle design of multiple first moving grooves 702 makes the horizontal movement distance of each adjustment shaft 705 different when the first adjustment plate 701 moves up and down, but due to the specific setting of the top and bottom spacing, the spacing between the multiple adjustment shafts 705 is always uniform when moving, thereby realizing the synchronous row spacing adjustment of multiple discharge hard pipes 6 to meet different planting requirements; then the lifting mechanism 8 is used to control the support plate 3 to move up and down, and then the pit opening mechanism 9 is used to open a pit in the land to allow the seeds in the discharge hard pipe 6 to enter the pit.

[0034] The adjusting mechanism 7 also includes a slide groove 706, a slider 707, a limiting shaft 708, a first limiting groove 709, a fixing nut 710 and a handle 711. The slide groove 706 is opened on the inner wall of the second movable groove 704, the slider 707 is fixedly connected to the rear end of the adjusting shaft 705, the slider 707 is located inside the slide groove 706, the limiting shaft 708 has two fixed connections to the front end of the second adjusting plate 703, the first limiting groove 709 has two openings inside the first adjusting plate 701, the limiting shaft 708 is located inside the first limiting groove 709, the fixing nut 710 is threadedly installed on the front end of the limiting shaft 708, the fixing nut 710 is located at the front end of the first adjusting plate 701, and the handle 711 has two fixed connections to the front end of the first adjusting plate 701.

[0035] The cooperation of the slide groove 706 and the slider 707 provides a guide and limit function for the movement of the adjustment shaft 705, ensuring that the adjustment shaft 705 can only move within a predetermined path, ensuring the accuracy and stability of the row spacing adjustment. The cooperation of the limit shaft 708 and the first limit groove 709 limits the up and down movement of the first adjustment plate 701, further improving the reliability of the adjustment mechanism 7. After the row spacing adjustment is completed, tighten the fixing nut 710 to fix the first adjustment plate 701 and the second adjustment plate 703 together to prevent the row spacing from changing due to vibration and other reasons during the sowing process. The pull handle 711 facilitates the operator to apply force and facilitates the operation of the first adjustment plate 701 to adjust the row spacing.

[0036] A connecting shaft 201 is fixedly connected between two opposite moving wheels 2 . The front connecting shaft 201 is movably installed inside the housing 1 , and the rear connecting shaft 201 is movably installed inside the support frame 101 .

[0037] The connecting shaft 201 serves to connect the two relatively movable wheels 2, so that the movable wheels 2 can rotate synchronously, ensuring the stability and linearity of the seeder during travel. The movable installation method of the front connecting shaft 201 and the housing 1 and the rear connecting shaft 201 and the support frame 101 enables the connecting shaft 201 to rotate freely within a certain range, adapt to the ups and downs of different terrains, reduce the bumps of the seeder during travel, provide stable support for the sowing operation, and help improve the sowing quality.

[0038] The lifting mechanism 8 includes a first connecting block 801, a second connecting block 802 and a third connecting block 803. The first connecting block 801 has two fixed connections to the outer walls of the two moving wheels 2 at the front end, the second connecting block 802 has two fixed connections to both sides of the outer wall of the support plate 3, and the third connecting block 803 is movably installed between the first connecting block 801 and the second connecting block 802.

[0039] When the moving wheel 2 rotates with the movement of the seeder, the first connecting block 801 fixed on the outer wall of the front moving wheel 2 moves accordingly. Since the third connecting block 803 is movably installed between the first connecting block 801 and the second connecting block 802, the movement of the first connecting block 801 is transmitted to the second connecting block 802 through the third connecting block 803, thereby driving the support plate 3 to move up and down. This mechanical structure design cleverly converts the rotation of the moving wheel 2 into the up and down movement of the support plate 3, thereby realizing the up and down movement of the discharge hard pipe 6, providing power support for pit opening and sowing, and ensuring the consistency and stability of the sowing depth.

[0040] The pit-opening mechanism 9 includes a conical pit-opening block 901, a spring 902 and a first ring 903. The conical pit-opening block 901 has four rings movably installed in an annular shape at the bottom of the outer wall of the discharge hard pipe 6. The spring 902 is fixedly installed between the bottom of the discharge hard pipe 6 and the conical pit-opening block 901. The first ring 903 is slidably mounted on the outer wall of the conical pit-opening block 901.

[0041] During the sowing process, when the discharge hard tube 6 moves downward with the action of the lifting mechanism 8, the conical hole-opening block 901 first contacts the ground and pushes the soil away, so that the conical hole-opening block 901 and the discharge hard tube 6 enter the soil. When the discharge hard tube 6 continues to move downward to a certain extent, the first ring 903 is separated from the outer wall of the conical hole-opening block 901. At this time, the spring 902 releases its elastic force and pushes the conical hole-opening block 901 outward to form a suitable hole so that the seeds can fall into the hole smoothly, realizing the hole-opening sowing function, ensuring that the seeds can be accurately sown in the soil at a predetermined depth, and improving the implantation rate and germination rate of the seeds.

[0042] The pit opening mechanism 9 also includes a support rod 904, a second ring 905, a limit block 906 and a second limit groove 907. The support rod 904 has multiple ring-shaped fixed connections to the top of the first ring 903, the second ring 905 is fixedly connected to the tops of multiple support rods 904, the limit block 906 has two fixed connections to the outer wall of the second ring 905, the second limit groove 907 has two openings on both sides of the inner wall of the slot 102, and the limit block 906 is located inside the second limit groove 907.

[0043] The support rod 904, the second ring 905 and the first ring 903 form an integral structure. When adjusting the row spacing, through the cooperation of the second limit groove 907 and the limit block 906, when the first adjustment plate 701 drives the adjustment shaft 705 to move, the first ring 903 can move parallel to the direction of the second limit groove 907, thereby driving the discharge hard pipe 6 to achieve parallel movement, and cooperate with the adjustment mechanism 7 to complete the row spacing adjustment; during the sowing process, the cooperation of the limit block 906 and the second limit groove 907 limits the up and down movement of the second ring 905, thereby preventing the first ring 903 from moving up and down with the discharge hard pipe 6. When the discharge hard pipe 6 moves downward, the conical pit opening block 901 can be separated from the first ring 903, ensuring that the pit opening mechanism 9 only works normally when the discharge hard pipe 6 moves up and down, thereby improving the stability and reliability of pit opening and sowing.

[0044] The bottom of the support frame 101 is fixedly connected with a push plate 10 , and the push plate 10 is in contact with the ground.

[0045] The push plate 10 is in contact with the ground during the movement of the seed drill. After the seeding is completed, it can push the soil on the ground flat, fill the planting hole, and improve the seeding quality and efficiency.

[0046] A push handle 103 is fixedly connected to the rear end of the outer wall of the housing 1 , and the push handle 103 is located on the top of the support frame 101 .

[0047] The push handle 103 provides a force application point for the operator, so that the operator can push the seeder to move in the field. The operator holds the push handle 103 and applies appropriate force to make the seeder move along a predetermined route, thereby achieving precise control of the sowing operation and ensuring uniformity and accuracy of sowing.

[0048] An inspection door 11 is movably hinged on the outer wall of the housing 1 , and two inspection doors 11 are relatively installed at the front end of the outer wall of the housing 1 .

[0049] The inspection door 11 is convenient for inspection and maintenance of the components inside the seeder. When the seeder fails or needs regular maintenance, the inspection door 11 is opened, and the operator can conveniently check the working status of the discharge hopper 4, the discharge hose 5, the adjustment mechanism 7 and other components, find problems in time and repair or replace them, so as to ensure the normal operation of the seeder and extend the service life of the seeder.

[0050] Working principle: Before sowing, first put the cotton seeds into the discharge funnel 4, and the seeds enter the discharge hard pipe 6 through the discharge hose 5.

[0051] If the line spacing needs to be adjusted, the operator pulls the handle 711 to move the first adjustment plate 701 up and down, so that the adjustment shaft 705 moves in the first moving groove 702 and the second moving groove 704, driving the discharge hard pipe 6 to adjust the spacing synchronously. After the adjustment is completed, tighten the fixing nut 710 to fix it.

[0052] During sowing, the operator pushes the push handle 103 to make the seeder move forward under the support of the moving wheel 2. The moving wheel 2 rotates to drive the first connecting block 801 to move, and the second connecting block 802 drives the support plate 3 to move up and down through the third connecting block 803, and the discharge hard pipe 6 also moves up and down accordingly. When the discharge hard pipe 6 moves downward, the conical pit block 901 contacts the ground and pushes the soil. When the discharge hard pipe 6 continues to move downward to a certain extent, the first ring 903 is separated from the outer wall of the conical pit block 901, and the spring 902 pushes the conical pit block 901 to form a pit, and the seeds fall into the pit.

[0053] Then, as the shell 1 moves, the push plate 10 at the rear end fills the planting hole and levels the ground at the same time.

[0054] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cotton seeder capable of multiple rows with synchronous row spacing and adjustable row spacing, comprising a housing (1), characterized in that: The rear end of the shell (1) is fixedly connected to a support frame (101), and moving wheels (2) are movably mounted on both sides of the shell (1) and the support frame (101), and the number of the moving wheels (2) is four. A support plate (3) is slidably mounted inside the shell (1), and a discharge funnel (4) is fixedly mounted on the top of the support plate (3), and the top of the discharge funnel (4) is connected to the feed port at the top of the shell (1). A discharge hose (5) is fixedly mounted inside the support plate (3), and the discharge hose (5) has a plurality of linearly distributed hoses (5) on the support plate (3). The top of the discharge hose (5) is fixedly connected to the bottom of the discharge funnel (4) and communicates with the discharge funnel (4); the top of the discharge hose (5) is fixedly connected to a discharge hard pipe (6); a groove (102) is provided at the bottom of the housing (1); a plurality of discharge hard pipes (6) are located inside the groove (102); an adjustment mechanism (7) is installed between the support plate (3) and the discharge hard pipe (6); a lifting mechanism (8) is installed between the moving wheel (2) and the support plate (3); and a pit opening mechanism (9) is installed at the bottom of the discharge hard pipe (6); The adjustment mechanism (7) comprises a first adjustment plate (701), a first movable groove (702), a second adjustment plate (703), a second movable groove (704) and an adjustment shaft (705), wherein the first adjustment plate (701) is located at the bottom of the support plate (3), a plurality of first movable grooves (702) are arranged inside the first adjustment plate (701), the inclination angles of the plurality of first movable grooves (702) are different, the spacings between the top ends of the plurality of first movable grooves (702) are the same, and the plurality of first movable grooves (702) are arranged at the same angle. ) have the same spacing between the bottom ends, the second adjustment plate (703) is fixedly connected to the bottom of the support plate (3) and is located at the rear end of the first adjustment plate (701), the second movable groove (704) is opened inside the second adjustment plate (703), the adjustment shaft (705) is fixedly connected to the rear end of the outer wall of the discharge hard pipe (6), the adjustment shaft (705) is located inside the first movable groove (702) and the second movable groove (704), and the first adjustment plate (701) can slide up and down at the front end of the second adjustment plate (703).

2. The multi-row synchronous and row-spacing adjustable cotton seeder according to claim 1, characterized in that: The adjustment mechanism (7) further comprises a slide groove (706), a slider (707), a limit shaft (708), a first limit groove (709), a fixing nut (710) and a handle (711), wherein the slide groove (706) is arranged on the inner wall of the second movable groove (704), the slider (707) is fixedly connected to the rear end of the adjustment shaft (705), the slider (707) is located inside the slide groove (706), the limit shaft (708) has two fixed connections to the front end of the second adjustment plate (703), the first limit groove (709) has two openings inside the first adjustment plate (701), the limit shaft (708) is located inside the first limit groove (709), the fixing nut (710) is threadedly mounted on the front end of the limit shaft (708), the fixing nut (710) is located at the front end of the first adjustment plate (701), and the handle (711) has two fixed connections to the front end of the first adjustment plate (701).

3. The multi-row synchronous and row-spacing adjustable cotton seeder according to claim 1, characterized in that: A connecting shaft (201) is fixedly connected between the two opposing moving wheels (2); the front end of the connecting shaft (201) is movably mounted inside the housing (1); and the rear end of the connecting shaft (201) is movably mounted inside the support frame (101).

4. The multi-row synchronous and row-spacing adjustable cotton seeder according to claim 1, characterized in that: The lifting mechanism (8) comprises a first connecting block (801), a second connecting block (802) and a third connecting block (803); the first connecting block (801) has two outer walls fixedly connected to the two front moving wheels (2); the second connecting block (802) has two outer walls fixedly connected to both sides of the supporting plate (3); and the third connecting block (803) is movably mounted between the first connecting block (801) and the second connecting block (802).

5. The multi-row synchronous and row-spacing adjustable cotton seeder according to claim 1, characterized in that: The pit-opening mechanism (9) comprises a conical pit-opening block (901), a spring (902) and a first ring (903); the conical pit-opening block (901) has four rings movably mounted on the bottom of the outer wall of the discharge hard pipe (6) in an annular shape; the spring (902) is fixedly mounted between the bottom of the discharge hard pipe (6) and the conical pit-opening block (901); and the first ring (903) is slidably mounted on the outer wall of the conical pit-opening block (901).

6. The multi-row synchronous and row-spacing adjustable cotton seeder according to claim 5, characterized in that: The pit opening mechanism (9) further comprises a support rod (904), a second ring (905), a limit block (906) and a second limit groove (907); the support rod (904) has a plurality of ring-shaped fixed connections to the top of the first ring (903); the second ring (905) is fixedly connected to the tops of the plurality of support rods (904); the limit block (906) has two fixed connections to the outer wall of the second ring (905); the second limit groove (907) has two openings on both sides of the inner wall of the slot (102); and the limit block (906) is located inside the second limit groove (907).

7. The multi-row synchronous and row-spacing adjustable cotton seeder according to claim 1, characterized in that: A push plate (10) is fixedly connected to the bottom of the support frame (101), and the push plate (10) is in contact with the ground.

8. The multi-row synchronous and row-spacing adjustable cotton seeder according to claim 1, characterized in that: A push handle (103) is fixedly connected to the rear end of the outer wall of the housing (1), and the push handle (103) is located on the top of the support frame (101).

9. The cotton seeder capable of multiple rows, synchronously and with adjustable row spacing according to claim 1, characterized in that: The outer wall of the shell (1) is movably hinged with an inspection door (11), and the inspection door (11) has two inspection doors (11) which are relatively mounted on the front end of the outer wall of the shell (1).

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