CN220776433U - Intertillage fertilizer injection unit is used in mixed planting of soybean maize - Google Patents

Abstract

The utility model provides a intertillage fertilizer injection unit for mixed planting of soybean and corn, which belongs to the technical field of agricultural machinery and comprises a walking frame body, wherein the walking frame body comprises a fixed frame body and an adjustable frame body, and the adjustable frame body is arranged at two ends of the fixed frame body and is detachably connected with the fixed frame body; the fixed frame body is sequentially provided with a plurality of weeding and fertilizing mechanisms, the adjustable frame body is sequentially provided with a plurality of weeding mechanisms, and the interval between two adjacent weeding mechanisms can be adjusted; the walking frame body is connected with the traction machine, and the traction machine is used for driving the walking frame body to move. The inter-cultivation weeding and fertilizing of the interplanted farmland is realized, the weeding and fertilizing efficiency is improved, the phenomenon that a worker folds back again to weed the soybean plant lines again after weeding and fertilizing corn crops is avoided, the phenomenon that the tractor rolls the land repeatedly is avoided, and the weeding and fertilizing efficiency of the interplanted crop farmland is improved.

Description

Intertillage fertilizer injection unit is used in mixed planting of soybean maize

Technical Field

The utility model belongs to the technical field of agricultural machinery, and particularly relates to a intertillage fertilizer injection unit for mixed planting of soybeans and corns.

Background

Along with the gradual popularization of interplanting crop agriculture, the interplanting can realize diversified planting of crops on a limited land area, so that the time, space and illumination utilization of the land are maximized, the purposes of increasing yield and income are achieved, the soil quality can be effectively improved, the pH value of the soil is regulated, the continuous cropping hazard is reduced, the occurrence of diseases and insect pests is inhibited, the functions of cold resistance, drought resistance, water retention and soil conservation of the land can be enhanced, and finally the effects of land cultivation, land cultivation and one-season multi-harvest are achieved, so that the interplanting cultivation method is a very efficient planting mode. When the interplanted crops reach the seedling stage, the cultivation is carried out, and the cultivation refers to shallow layer turnover of soil and loosening of surface soil. Is the surface soil cultivation between plant rows in the crop growth period. The existing intertillage device is mostly used for achieving the purposes of loosening soil and removing weeds, and then fertilizing the loosened soil, generally, a tractor is used for traction of weeding and fertilizing components to walk among crop plants, a weeding mechanism is provided with a coulter, the coulter can extend into the soil among the crop plants, and weeding and fertilizing are carried out on the soil among the crop plants.

The existing intertillage device cannot be applied to interplanting farmlands, such as planting three rows of soybeans in one farmland, then planting three rows of corns again on one side where the soybeans are planted, and sequentially and reciprocally interplanting until the whole farmland is planted, when the soybeans and the corns reach a seedling stage, weeding is needed between the rows of the soybeans and the corns, but in the process of weeding between the rows, the weeding depth is deep when the roots of the corns are deep, then, fertilization is needed again after weeding between the rows of the corns, when weeding is needed between the rows of the soybeans, the weeding depth is shallow, fertilization is not needed after weeding between the rows of the soybeans, and the existing general intertillage weeding and fertilization integrated equipment can only independently weed soil between the rows, and then, fertilization is needed again; the integrated equipment for intertillage weeding and fertilizing is already on the existing market, but for interplanted crop farmlands, such as soybean corn interplanted farmlands, the existing integrated equipment for intertillage weeding and fertilizing can only weed among soybean plants firstly, then, the weeding depth and the fertilizing depth of a coulter are changed, weeding and fertilizing are performed among corn plants again, so that the weeding depth of the coulter is required to be changed for many times by workers, and the integrated equipment is complex, meanwhile, after weeding of soybean plants, weeding and fertilizing are required to be performed among corn plants again after the equipment is folded back, and the working efficiency is low.

Disclosure of Invention

Based on the technical scheme, the utility model provides a intertillage fertilizer device for mixed planting of soybeans and corns, which aims to solve the technical problem that weeding and fertilizer application can be simultaneously carried out among different crop plants for interplanted crop farmlands in the prior art.

The technical scheme for solving the technical problems is as follows:

the intertillage fertilizer injection unit for soybean and corn mixed planting comprises a walking frame body, wherein the walking frame body comprises a fixed frame body and an adjustable frame body, and the adjustable frame body is arranged at two ends of the fixed frame body and is detachably connected with the fixed frame body;

the fixed frame body is sequentially provided with a plurality of weeding and fertilizing mechanisms, the adjustable frame body is sequentially provided with a plurality of weeding mechanisms, and the interval between two adjacent weeding mechanisms can be adjusted;

the walking frame body is connected with the traction machine, and the traction machine is used for driving the walking frame body to move.

Preferably, the weeding mechanism comprises a first curved coulter and a first adjusting sleeve, the first curved coulter is vertically arranged, the first curved coulter is sleeved in the first adjusting sleeve, and the first adjusting sleeve is sleeved on the adjustable frame body.

Preferably, the first curved coulter comprises a crank and an arched cutter head, the crank is vertically arranged, one end of the crank is sleeved in the first adjusting sleeve, the other end of the crank is connected with the arched cutter head, and the arched cutter head is used for dredging soil and cutting grass roots.

Preferably, the weeding and fertilizing mechanism comprises a fertilizing box body, a conveying pipe, a second curved coulter and a curved fertilizing piece, wherein the fertilizing box body is erected on the fixing frame body, one end of the conveying pipe is communicated with the fertilizing box body, the other end of the conveying pipe is communicated with the curved fertilizing piece, the second curved coulter is vertically arranged on the fixing frame body, the curved fertilizing piece is vertically arranged, and the curved fertilizing piece and the curved coulter are mutually attached.

Preferably, the curved fertilization piece comprises a curved fertilization pipe and a diversion curved plate, the curved fertilization pipe is mutually attached to the crank, the lower end face of the curved fertilization pipe is flush with the lower end face of the crank, the diversion curved plate is attached to the outer wall of the curved fertilization pipe, the diversion curved plate is located at the lower end of the curved fertilization pipe, and the diversion curved plate is bent towards one side close to the curved fertilization pipe and used for dredging soil.

Preferably, the guiding curved plate comprises a front curved plate and a return soil curved plate, the front curved plate is attached to the outer wall of the curved fertilization tube, the front curved plate is located at the lower end of the curved fertilization tube, the return soil curved plate is arranged at two sides of the front curved plate, and the return soil curved plate is bent towards one side close to the curved fertilization tube.

Preferably, the guiding curved plate further comprises a soil guiding curved plate, the soil guiding curved plate is located above the soil returning curved plate, one end of the soil guiding curved plate is connected with the front edge curved plate, and the other end of the soil guiding curved plate is bent towards one side close to the soil returning curved plate.

Preferably, the intertillage fertilizer injection unit for mixed planting of soybean and corn further comprises a self-balancing mechanism, wherein the self-balancing mechanism is connected with the fixed frame body and used for keeping the fixed frame body balanced; the self-balancing mechanism comprises a first main shaft, a second main shaft and a pair of rebound members, one end of the first main shaft is connected with the weeding mechanism, the other end of the first main shaft is sleeved with the second main shaft, the first main shaft can rotate around the axis of the second main shaft, the second main shaft is hinged with the tractor, the tractor is used for driving the walking frame body to move, one end of each rebound member is hinged with the weeding mechanism, the other end of each rebound member is hinged with the second main shaft, and the rebound members are symmetrically arranged on two sides of the first main shaft.

Compared with the prior art, the utility model has at least the following advantages:

through set up on the mount body adjustable support body set up on the adjustable support body weeding mechanism, when being to the corn plant inter-row weeding fertilization, also can accomplish the weeding work to soybean plant inter-row, realized the intertillage weeding fertilization to interplanting farmland, improved weeding fertilization efficiency, avoid the staff to need adjusting device's weeding height after the corn crop weeding fertilization, turn back again and weed again to soybean plant row, also avoided the tractor rolls the soil repeatedly, improved interplanting crop farmland weeding fertilization efficiency, simultaneously, to not interplanted crop's farmland, dismantle adjustable support body with weeding mechanism can, adjustable support body with weeding mechanism convenient to detach, convenient to use.

Drawings

Fig. 1 is an isometric view of a intertillage fertilizer injection unit for mixed planting of soybeans and corn.

Fig. 2 is a front view of a intertillage fertilizer applicator for mixed planting of soybean and corn.

Fig. 3 is a top view of the intertillage fertilizer injection unit for mixed planting of soybean and corn.

Fig. 4 is an isometric view of a weeding and fertilizing mechanism and a self-balancing mechanism.

Fig. 5 is an isometric view of a weeding mechanism.

FIG. 6 is an isometric view of a second curved coulter and a curved fertilization member.

FIG. 7 is an isometric view of a first curved coulter.

In the figure: the walking frame 10, the fixed frame 110, the adjustable frame 120, the weeding and fertilizing mechanism 20, the fertilizing box 210, the conveying pipe 220, the second curved coulter 230, the curved fertilizing piece 240, the curved fertilizing pipe 241, the guiding curved plate 242, the front edge curved plate 2421, the soil returning curved plate 2422, the soil guiding curved plate 2423, the second adjusting sleeve 250, the weeding mechanism 30, the first curved coulter 310, the crank 311, the arcuate cutter head 312, the arcuate plug 3121, the first cutting wing 3122, the second cutting wing 3123, the first adjusting sleeve 320, the tractor 40, the self-balancing mechanism 50, the first main shaft 510, the second main shaft 520, the second rotating shaft 521, the movable rod 522, the rebound piece 530, the extension plate 531, and the tension spring 532.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The technical solution of the present utility model will be further described below with reference to the accompanying drawings of the embodiments of the present utility model, and the present utility model is not limited to the following specific embodiments.

It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., that indicate an azimuth or a positional relationship based on the directions or the positional relationships shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but not for indicating or suggesting that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limitations of the present patent, and that the specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

Referring to fig. 1, a intertillage fertilizer injection unit for mixed planting of soybean and corn comprises a walking frame body 10, wherein the walking frame body 10 comprises a fixed frame body 110 and an adjustable frame body 120, and the adjustable frame body 120 is arranged at two ends of the fixed frame body 110 and is detachably connected with the fixed frame body 110; the fixed frame body 110 is sequentially provided with a plurality of weeding and fertilizing mechanisms 20, the adjustable frame body 120 is sequentially provided with a plurality of weeding mechanisms 30, the distance between every two adjacent weeding mechanisms 30 is adjustable, the adjustable frame body further comprises a tractor 40, and the tractor 40 is connected with the walking frame body 10 and is used for driving the walking frame body 10 to move.

Working principle and effect: the fixed frame body 110 is arranged in proper order and is provided with a plurality of weeding and fertilizing mechanism 20, works as when tractor 40 drives, drives the fixed frame body 110 moves, the fixed frame body 110 drives weeding and fertilizing mechanism 20 moves, and a plurality of is arranged in proper order weeding and fertilizing mechanism 20 can accomplish the weeding and fertilizing of corn crop between the interplanted plant lines, because the corn crop line both sides are planted with soybean crop, then the fixed frame body 110 both ends cup joint adjustable frame body 120 cup joint a plurality of weeding mechanism 30 on the adjustable frame body 120, and adjust two adjacent interval between the weeding mechanism 30, make two adjacent interval between the weeding mechanism 30 is the same with interval between two lines of soybean plant lines, through set up on the fixed frame body 110 adjustable frame body 120 set up weeding mechanism 30 on the adjustable frame body 120, when weeding and fertilizing to corn plant line weeding and fertilizing simultaneously, also can accomplish the weeding work of interplanted farmland, improved weeding and fertilizing efficiency to the interplanted farmland, the weeding and fertilizing device has avoided the interplanted plant to roll back to the weeding and fertilizing mechanism 40, and can be dismantled conveniently and the height of the adjustable frame body is the weeding and is the field is the adjustable frame body is the height of the weeding and is the field is the adjustable, and the weeding and is the frame body is the convenient for the weeding and is the field is the detachable to be about to the high.

As a further description, the weeding mechanism 30 includes a first curved coulter 310 and a first adjusting sleeve 320, the first curved coulter 310 is vertically disposed, the first curved coulter 310 is sleeved in the first adjusting sleeve 320, the first adjusting sleeve 320 is sleeved on the adjustable frame 120, the first adjusting sleeve 320 can be adjusted left and right on the adjustable frame 120, when the first adjusting sleeve 320 is adjusted to a proper position, the first adjusting sleeve 320 is fixed on the adjustable frame 120 by using a stud bolt, a plurality of first adjusting sleeves 320 are sequentially adjusted, and are sequentially fixed, the first curved coulter 310 is sleeved in the first adjusting sleeve 320 according to the root system depth of a seedling, the first curved coulter 310 can move up and down along the vertical direction, the soil penetration depth of the curved coulter can be changed, after the first curved coulter 310 is adjusted to a proper height, the first curved coulter 310 is fixed in the first adjusting sleeve 310 by using a stud bolt, and the first curved coulter is prevented from shaking when the first curved coulter 310 is adjusted to a plurality of soil, and the first curved coulter 310 is prevented from shaking.

Specifically, the number of the first curved coulters 310 is N, where N is greater than or equal to 3. Is convenient for weeding among a plurality of rows of soybean plants.

Still further, the first curved coulter 310 includes a crank 311 and an arcuate cutter head 312, the crank 311 is vertically disposed, one end of the crank 311 is sleeved in the first adjusting sleeve 320, the other end is connected with the arcuate cutter head 312, and the arcuate cutter head 312 is used for dredging soil and cutting grass roots.

Still further, the arcuate cutter head 312 includes an arcuate plug 3121, a first cutting wing 3122 and a second cutting wing 3123, the arcuate plug 3121 is disposed at a front end of the crank 311, one ends of the first cutting wing 3122 and the second cutting wing 3123 are connected with the arcuate plug 3121, and the first cutting wing 3122 and the second cutting wing 3123 are disposed at two sides of the arcuate plug 3121 and symmetrically disposed along the arcuate plug 3121. The arcuate plug 3121 is easy to insert into the soil, two sides of the first and second cutting wings 3122 and 3123 cut the root system of weeds in the soil, and at the same time, a part of the soil is discharged from the sides of the first and second cutting wings 3122 and 3123 by the dredging action of the first and second cutting wings 3122 and 3123, and another part of the soil is discharged from the upper end surface of the arcuate plug 3121 and the gaps between the arcuate plug 3121 and the cutting wings on two sides.

For further, the weeding and fertilizing mechanism 20 comprises a fertilizing box 210, a conveying pipe 220, a second curved coulter 230 and a curved fertilizing member 240, wherein the fertilizing box 210 is arranged on the fixed frame 110, one end of the conveying pipe 220 is communicated with the fertilizing box 210, the other end of the conveying pipe is communicated with the curved fertilizing member 240, the second curved coulter 230 is vertically arranged on the fixed frame 110, the curved fertilizing member 240 is vertically arranged, and the curved fertilizing member 240 and the curved coulters are mutually attached.

Specifically, the second curved coulter 230 has the same shape and structure as the first curved coulter 310.

Specifically, the number of the second curved coulters 230 is M, and M is greater than or equal to 3. Is convenient for weeding among a plurality of rows of corn plants.

Specifically, the weeding and fertilizing mechanism 20 further includes a second adjusting sleeve 250, the second adjusting sleeve 250 is sleeved on the fixed frame 110, the second adjusting sleeve 250 can be adjusted left and right on the fixed frame 110, when the second adjusting sleeve 250 is adjusted to a proper position, the second adjusting sleeve 250 is fixed on the fixed frame 110 by using stud bolts, a plurality of second adjusting sleeves 250 are sequentially adjusted, and sequentially fixed, the second curved coulter 230 is sleeved in the second adjusting sleeve 250 according to the depth of root systems of the seedlings, the second curved coulter 230 can move up and down along the vertical direction, the penetration depth of the curved coulter can be changed, after the second curved coulter 230 is adjusted to a proper height, the second curved coulter 230 is fixed in the second adjusting sleeve 250 by using stud bolts, the second curved coulter 230 is prevented from shaking, and sequentially adjusted by a plurality of second curved coulters 230, so that the soil between the second curved coulters 230 can be removed conveniently.

Still further, the curved fertilizing member 240 includes a curved fertilizing tube 241 and a guiding curved plate 242, the curved fertilizing tube 241 and the crank 311 are mutually attached, the lower end surface of the curved fertilizing tube 241 is flush with the lower end surface of the crank 311, the guiding curved plate 242 is attached to the outer wall of the curved fertilizing tube 241, and the guiding curved plate 242 is located at the lower end of the curved fertilizing tube 241, and the guiding curved plate 242 is curved towards one side close to the curved fertilizing tube 241 for dredging soil.

Principle and effect of the weeding and fertilizing mechanism 20: the second curved coulter 230 is inserted into the soil to a depth near the root system of the seedling, the tractor 40 moves to drive the second curved coulter 230 to move, the curved coulter 312 can loosen the soil, simultaneously, the curved coulter 312 can cut the root system of the inter-row weeds of the seedling in the moving process and take the weeds out of the soil through the crank 311, the curved coulter 312 can discharge a part of the soil from two sides of the curved coulter 312 in the process of loosening the soil, then falls behind the curved coulter 312, another part of the soil can enter from the upper end face of the curved coulter 312 and fall behind the curved coulter 312 in a parabolic form, the soil discharged from two sides of the curved coulter 312 can bend towards one side close to the curved fertilizer guiding tube 241, the curved coulter 242 can not push the soil to two sides of the curved coulter 242, then can continue to discharge from two sides of the curved coulter 242 and move along the curved coulter 242, a part of the soil can be discharged from two sides of the curved coulter 242 to the two sides of the curved coulter 242, then falls back to the curved coulter 242 from the curved end face of the curved coulter 242, the curved coulter 242 can be formed by the curve body 210, the curved coulter 242 can then falls back to the curved coulter 241 in a form, the curved coulter body is formed at the end face of the curved coulter 241 and then falls back to the curved coulter 241, the end face is formed at the end face of the curved coulter 241 and then, and then falls down on the curved coulter 241 and then falls down on the curved coulter 242 end surface is discharged from the curved coulter 241, soil discharged from both sides of the guide curved plate 242 and falling in a parabolic manner above the guide curved plate may backfill fertilizer. The effect is achieved: through the cooperation of second curved coulter 230 and curved fertilization spare 240, at the in-process of weeding to soil, fertilize simultaneously, dredge soil through the water conservancy diversion bent plate 242 to the back of fertilizeing to soil, backfill once more, bury fertilizer, avoid the fertilizer to expose at soil surface, fertilizer also comparatively accurate spill near seedling root system, the seedling can better absorb the nutrient in the fertilizer, the nutrient in the fertilizer is difficult for losing.

Still further, the guiding curved plate 242 includes a front curved plate 2421 and a return curved plate 2422, the front curved plate 2421 is attached to the outer wall of the curved fertilizing tube, the front curved plate 2421 is located at the lower end of the curved fertilizing tube, the return curved plate 2422 is disposed at two sides of the front curved plate 2421, and the return curved plate 2422 is curved toward one side close to the curved fertilizing tube. The soil discharged from both sides of the second curved coulter 230 is discharged onto the front curved plate 2421 and the return curved plate 2422, and then is discharged along the return curved plate 2422 again through the return curved plate 2422, while the return curved plate 2422 is bent toward one side close to the curved fertilizing pipes, the discharged soil is not directly extruded onto both sides of the return curved plate 2422, but is led to the rear through the return curved plate 2422, a large amount of soil is not present under the curved fertilizing pipes in the process of leading the soil, the lower end of the curved fertilizing pipes smoothly falls out of the fertilizer and falls to the vicinity of root plants, and the fertilizer is not pushed to the upper surface of the soil along with the discharged soil, and after the fertilizer falls down, the fertilizer is buried in the soil backfilled from both sides of the return curved plate 2422, so that the fertilizer can be not only buried in the weeding process, but also the fertilizer can be well absorbed by the root plants in the vicinity of the root plants.

Still further preferably, the guiding curved plate 242 further comprises a guiding curved plate 2423, the guiding curved plate 2423 is located above the return curved plate 2422, one end of the guiding curved plate 2423 is connected to the leading curved plate 2421, and the other end is curved toward a side close to the return curved plate 2422. Soil discharged from the upper end surface of the second curved coulter 230 falls onto the soil guiding plate 2423 in a parabolic manner, continues to move along the upper end surface of the soil guiding plate 2423 as the soil guiding plate 2423 moves forward, and then is discharged from the soil guiding plate 2423 in a parabolic manner, falls onto the fertilizer falling from the curved fertilizer pipe, and buries the fertilizer again.

In order to further achieve the above object, the cultivation and fertilization device for mixed planting of soybean and corn further comprises a self-balancing mechanism 50, wherein the self-balancing mechanism 50 is connected with the fixed frame 110, and is used for keeping the fixed frame 110 balanced; the self-balancing mechanism 50 comprises a first main shaft 510, a second main shaft 520 and a pair of rebound members 530, wherein one end of the first main shaft 510 is connected with the fixed frame 110, the other end of the first main shaft 510 is sleeved with the second main shaft 520, the first main shaft 510 can rotate around the axis of the second main shaft 520, the second main shaft 520 is hinged with the tractor 40, the tractor 40 is used for driving the fixed frame 110 to move, one end of each rebound member 530 is hinged with the fixed frame 110, the other end of each rebound member 530 is hinged with the second main shaft 520, and the pair of rebound members 530 are symmetrically arranged on two sides of the first main shaft 510.

Further, the resilient member 530 includes an extension plate 531 and an extension spring 532, one end of the extension plate 531 is fixedly connected to the fixing frame 110, one end of the extension spring 532 is hinged to the extension plate 531, the other end of the extension spring 532 is hinged to the second spindle 520, and when the second spindle 520 rotates around the axis of the first spindle 510, the extension spring 532 can be stretched or contracted. By arranging the extension plate 531, the extension spring 532 with an overlong length is avoided, and meanwhile, if the extension spring 532 is overlong and the spring contracts, fingers of a human body can be injured by clamping, and elastic deformation of the spring can be avoided. By the extension or shortening of the extension spring 532, the herbicide applying mechanism 20 and the herbicide mechanism 30 are maintained in a balanced state.

Specifically, the extension spring 532 is disposed obliquely, so that the extension spring 532 is conveniently extended or spring-reset when the first spindle 510 and the second spindle 520 relatively rotate.

Still further, the second main shaft 520 includes a second rotating shaft 521 and a movable rod 522, where the second rotating shaft 521 is sleeved on the first main shaft 510, and one end of the movable rod 522 is rotatably connected to the second rotating shaft 521, and the other end is rotatably connected to the tractor 40. By providing the movable rod 522 for connection with the tractor 40, the movable rod 522 is rotatably connected with the tractor 40, so that buffering time can be given to the self-balancing mechanism 50, and damage to the self-balancing mechanism 50 is avoided.

The self-balancing mechanism 50 operates according to the principle and effects: after the tractor 40 moves, the first main shaft 510 is driven to move, the second main shaft 520 is sleeved on the first main shaft 510, and the fixed frame 110 is driven to move; in the first state, the wheels at one side of the tractor 40 drive into a shallow depression, the weeding mechanism 30 at one side close to the depression cannot go deep into soil to weed, a worker presses down the weeding mechanism 30 at one side not capable of weeding, or after the weeding mechanism 30 moves a certain distance, the first spindle 510 is sleeved on the second spindle 520, under the action of gravity, the weeding mechanism 30 drives the first spindle 510 to rotate around the axis of the second spindle 520, the rebound member 530 can be freely and elastically stretched or contracted, one end of the rebound member 530 is connected with the fixed frame 110, the other end of the rebound member 530 is connected with the second spindle 520, the second spindle 520 does not move, the weeding and fertilizing mechanism 20 and the weeding mechanism 30 are in a downward rotation state, the rebound member 530 at one side close to the depression is stretched and prolonged, the rebound member 530 at one side far from the depression is compressed and shortened, and the weeding and fertilizing mechanism 20 and the weeding and fertilizing mechanism 30 can weed for soil at the depression; in the second state, when the fixed frame 110 is driven by the tractor 40 to leave the depression, the land is flattened from the depression, the tractor 40 drives the weeding mechanism 30 to be in a horizontal state, at this time, the resilient members 530 elastically recover, and the resilient members 530 on both sides are in the same stretching length, so that the plowing depth and the fertilizing depth on the weeding mechanism 30 can be kept at the same depth. Through the weeding mechanism 30 front end sets up self-balancing mechanism 50, through first main shaft 510 round second main shaft 520 rotates, and rebound piece 530's elasticity stretches under the effect of shortening, can drive weeding mechanism 30 takes place to rotate, and can keep balanced state, and then drive weeding mechanism 30 and weeding fertilization mechanism can continue weeding and fertilization to the low-lying department in the soil, simultaneously, rebound piece 530's elasticity resets, makes weeding mechanism 30 and fertilization mechanism keep balanced, and then make weeding mechanism 30's weeding degree of depth keeps same degree of depth, is convenient for clear away the weeds of trunk line spare, and does not fish tail seedling root system, simultaneously, is convenient for weeding fertilization mechanism's fertilization degree of depth keeps at same degree of depth, is convenient for seedling root system absorbs fertilizer.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The intertillage fertilizer injection unit for the soybean and corn mixed planting is characterized by comprising a walking frame body, wherein the walking frame body comprises a fixed frame body and an adjustable frame body, and the adjustable frame body is arranged at two ends of the fixed frame body and is detachably connected with the fixed frame body;

the fixed frame body is sequentially provided with a plurality of weeding and fertilizing mechanisms, the adjustable frame body is sequentially provided with a plurality of weeding mechanisms, and the interval between two adjacent weeding mechanisms can be adjusted;

the walking frame body is connected with the traction machine, and the traction machine is used for driving the walking frame body to move.

2. The intertillage fertilizer injection unit for soybean and corn mixed planting of claim 1, wherein the weeding mechanism comprises a first curved coulter and a first adjusting sleeve, the first curved coulter is vertically arranged, the first curved coulter is sleeved in the first adjusting sleeve, and the first adjusting sleeve is sleeved on the adjustable frame.

3. The intertillage fertilizer injection unit for soybean and corn mixed planting of claim 2, wherein the first curved coulter comprises a crank and an arcuate cutter head, the crank is vertically arranged, one end of the crank is sleeved in the first adjusting sleeve, the other end of the crank is connected with the arcuate cutter head, and the arcuate cutter head is used for dredging soil and cutting grass roots.

4. The intertillage fertilizer injection unit for soybean and corn mixed planting of claim 3, wherein the weeding and fertilizing mechanism comprises a fertilizer box body, a conveying pipe, a second curved coulter and a curved fertilizer application part, wherein the fertilizer box body is arranged on the fixed frame body, one end of the conveying pipe is communicated with the fertilizer box body, the other end of the conveying pipe is communicated with the curved fertilizer application part, the second curved coulter is vertically arranged on the fixed frame body, the curved fertilizer application part is vertically arranged, and the curved fertilizer application part and the curved coulter are mutually attached.

5. The intertillage fertilizer injection unit for soybean and corn mixed planting of claim 4, wherein the curved fertilizer application piece comprises a curved fertilizer application pipe and a diversion curved plate, the curved fertilizer application pipe is mutually attached to the crank, the lower end face of the curved fertilizer application pipe is flush with the lower end face of the crank, the diversion curved plate is attached to the outer wall of the curved fertilizer application pipe, and the diversion curved plate is positioned at the lower end of the curved fertilizer application pipe, and the diversion curved plate is bent towards one side close to the curved fertilizer application pipe for dredging soil.

6. The intertillage fertilizer injection unit for soybean and corn mixed planting of claim 5, wherein the diversion bent plate comprises a front bent plate and a return soil bent plate, the front bent plate is attached to the outer wall of the curved fertilizer pipe, the front bent plate is located at the lower end of the curved fertilizer pipe, the return soil bent plate is arranged at two sides of the front bent plate, and the return soil bent plate is bent towards one side close to the curved fertilizer pipe.

7. The intertillage fertilizer injection unit for soybean and corn mixed planting of claim 6, wherein the diversion curved plate further comprises a soil guiding curved plate, the soil guiding curved plate is located above the soil returning curved plate, one end of the soil guiding curved plate is connected with the front edge curved plate, and the other end of the soil guiding curved plate is bent towards one side close to the soil returning curved plate.

8. The intertillage fertilizer apparatus for hybrid planting of soybean and corn of claim 1, further comprising a self-balancing mechanism connected to the fixed frame body for balancing the fixed frame body; the self-balancing mechanism comprises a first main shaft, a second main shaft and a pair of rebound pieces, one end of the first main shaft is connected with the fixed frame body, the other end of the first main shaft is sleeved with the second main shaft, the first main shaft can rotate around the axis of the second main shaft, the second main shaft is hinged with the tractor, the tractor is used for driving the fixed frame body to move, one end of each rebound piece is hinged with the fixed frame body, the other end of each rebound piece is hinged with the second main shaft, and the rebound pieces are symmetrically arranged on two sides of the first main shaft.