Efficient saline-alkali soil improvement device

Abstract

The invention discloses a high-efficiency saline-alkali soil improvement device, and belongs to the technical field of saline-alkali soil improvement, the high-efficiency saline-alkali soil improvement device comprises a bottom plate and coulters, the bottom plate is provided with rollers, the bottom plate is fixedly provided with a mounting plate, the mounting plate is rotatably provided with a crushing roller, and the crushing roller is uniformly and fixedly provided with crushing blades; and a belt is mounted between a rotating shaft of the crushing roller and a rotating shaft of the roller. According to the scheme, through cooperation of the elastic cushion and the plugging block, the elastic cushion is driven to stretch out and draw back in a reciprocating mode when the improvement device moves, then fertilizer liquid is driven to be applied through the fertilizer applying pipe in the reciprocating stretching out and draw back process of the elastic cushion, and the elastic cushion stops shaking when the improvement device stops moving, so that fertilizer applying can be stopped, and fertilizer accumulation is avoided; when the speed of the improvement device is too high, the plugging block can be driven to move, and the cross sectional area of the communication part of the communication groove and the fertilization cavity is increased, so that the fertilization amount is increased, and the saline-alkali soil improvement effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of saline-alkali soil improvement, and more particularly to an efficient saline-alkali soil improvement device. BACKGROUND

[0002] Saline-alkali soil is a kind of salt accumulation, which refers to the salt contained in the soil affecting the normal growth of crops.

[0003] Saline-alkali soil is a general term for saline soil and alkaline soil; saline soil mainly refers to saline-alkali soil containing high chloride or sulfate, the soil is alkaline, but the pH value is not necessarily very high. Alkaline soil refers to soil containing carbonate or heavy phosphate, the pH value is high, the soil is alkaline, the organic matter content of saline-alkali soil is low, the soil fertility is low, the physicochemical properties are poor, and there are many harmful anions and cations to crops, so it is not easy to promote seedlings. Therefore, in order to improve the saline-alkali soil, fertilization is often used for saline-alkali soil, and the fertilization principle of saline-alkali soil is to mainly use organic fertilizer and efficient compound fertilizer, and to control the use of low-concentration chemical fertilizer.

[0004] Organic fertilizer contains a large amount of organic matter, which has a buffering effect on harmful anions and cations in the soil, is beneficial to root growth and seedling promotion, but the existing fertilization device is mostly to directly place the fertilizer on the surface of the land through the fertilization machine, which cannot mix the fertilizer and the land sufficiently, thereby seriously affecting the improvement effect of saline-alkali soil.

[0005] In view of the above problems, some solutions are also given in the prior art, such as the Chinese invention patent with the publication number CN117397410B discloses a saline-alkali soil repair device, which can improve the repair effect of saline-alkali soil by using a hopper to shovel the soil of saline-alkali soil onto a screen, using a first roller to roll and crush the soil on the screen, and then wetting the small soil blocks. The crushed soil particles can have a larger area to contact with the repair liquid, thereby improving the repair effect of saline-alkali soil blocks. Although the prior art can improve the improvement effect to a certain extent, it cannot control the amount of repair liquid applied, especially when the improvement device encounters problems or needs to turn, the improvement device may need to stop moving, at this time the flow rate of the repair liquid is constant, thereby easily leading to excessive local fertilization amount, and causing secondary salinization of local soil, and when encountering flat soil, the improvement device may travel quickly, since the flow rate of the repair liquid is constant, thereby easily leading to insufficient local fertilization amount, thereby seriously affecting the improvement effect of saline-alkali soil. SUMMARY

[0006] In view of the problems in the prior art, the purpose of the present application is to provide an efficient saline-alkali soil improvement device, which can improve the improvement effect of saline-alkali soil.

[0007] To solve the above problems, the technical scheme adopted by the present application is as follows.

[0008] The utility model provides a high -efficient saline and alkaline land improvement device, including bottom plate and plough blade, be equipped with the roller on the bottom plate, fixedly installed with the mounting plate on the bottom plate, rotatably installed with the rubbing roller on the mounting plate, and even fixedly installed with the rubbing blade on the rubbing roller, and the rotary shaft of rubbing roller and the rotary shaft of the roller are jointly installed with the belt, be equipped with the fertilizer assembly on the bottom plate, The fertilizer assembly comprises a fertilizer cylinder fixedly installed on the top wall of the bottom plate, a filter screen slidably installed in the fertilizer cylinder, an elastic pad jointly installed between the bottom wall of the filter screen and the fertilizer cylinder, a cavity opened in the elastic pad, a water inlet valve with an input end communicated with the fertilizer cylinder inserted into the cavity, a drain valve inserted into the cavity, a fertilizer pipe inserted into the output end of the drain valve, a vertical rod fixedly installed on the bottom wall of the filter screen extending to the bottom wall of the bottom plate, and the bottom wall of the vertical rod is an inclined surface, a push rod fixedly installed on the rubbing roller matched with the vertical rod, and a linkage assembly provided on the mounting plate matched with the fertilizer pipe.

[0009] Further, the linkage assembly comprises a linkage groove opened in the mounting plate, and the fertilizer pipe is communicated with the linkage groove, a fertilizer cavity opened in the rubbing roller, fertilizer holes evenly opened in the fertilizer cavity, a communication groove opened in the linkage groove communicated with the fertilizer cavity, a block for controlling flow slidably installed in the communication groove, an inclined groove opened in the block, a return spring jointly installed between the block and the communication groove, and a vertical plate fixedly installed on the bottom plate rotatably matched with the roller, and a screening assembly provided on the mounting plate matched with the rubbing roller.

[0010] Further, a rotating rod slidably matched with the filter screen is rotatably installed on the top wall of the fertilizer cylinder, stirring rods are fixedly installed on the rotating rod, rotating grooves are opened in the stirring rods, and protrusions slidably matched with the rotating grooves are fixedly installed on the filter screen.

[0011] Further, an annular groove is opened in the top wall of the filter screen, a plurality of elastic needles are arranged in the annular groove, spring telescopic rods with downward output ends are fixedly installed on the stirring rods, scraper plates matched with the filter screen are fixedly installed on the output ends of the spring telescopic rods, and impact needles matched with the elastic needles are fixedly installed on the scraper plates.

[0012] Further, the screening assembly comprises a screening plate rotatably installed on the mounting plate, screening grooves are evenly opened in the screening plate, a circular groove is opened in the mounting plate, a linkage plate is fixedly installed on the screening plate, a return pad is jointly installed between the linkage plate and the circular groove, and a connecting rope is jointly installed between the screening plate and the filter screen.

[0013] Furthermore, a sleeve is fixedly installed on the top wall of the screening plate, an installation rod is slidably and sealed inside the sleeve, a first spring is installed between the installation rod and the sleeve, a push plate is fixedly installed at the end of the installation rod away from the first spring, a crushing rod is fixedly installed on the push plate, and an air cavity is opened in the reset pad, and an air pipe communicating with the sleeve is inserted into the air cavity.

[0014] Furthermore, the diameter ratio of the fertilizer application pipe to the connecting groove is 3:1.

[0015] Furthermore, a pulley that cooperates with the connecting rope is fixedly installed on the base plate.

[0016] Furthermore, cleaning rods are uniformly fixedly installed on the bottom wall of the base plate.

[0017] Furthermore, a transparent glass sheet is embedded in the side wall of the fertilizer cylinder, and the glass sheet has scale lines.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) This scheme sets up an elastic pad and a sealing block to work together. When the improvement device moves, the elastic pad will reciprocate and expand. During the reciprocating expansion and contraction of the elastic pad, the fertilizer liquid will be applied through the fertilizer pipe. When the improvement device stops moving, the elastic pad stops shaking, thus stopping the application of fertilizer and preventing fertilizer accumulation. When the improvement device moves too fast, the sealing block can be moved to increase the cross-sectional area of ​​the connection between the connecting groove and the fertilizer chamber, thereby increasing the amount of fertilizer applied and improving the effect of saline-alkali land improvement. (2) This scheme uses the cooperation of the protrusion and the rotating groove. During the reciprocating motion of the filter screen, the protrusion and the rotating groove rod can rotate. During the rotation of the rotating rod, the stirring rod can be driven to stir the fertilizer liquid, so as to avoid the fertilizer liquid from stratifying and affecting the fertilization effect. At the same time, during the rotation of the stirring rod, the scraper can be driven to rotate through the spring telescopic rod. During the rotation of the scraper, the solid particles on the top wall of the filter plate can be cleaned and the solid particles can be moved into the annular groove under the action of centrifugal force, so as to avoid the filter screen from clogging. During the rotation of the scraper, the elastic needle can also be driven to vibrate and stir the fertilizer that is not completely dissolved in the annular groove. Thus, the improvement effect of saline-alkali land can be further improved by improving the fertilization effect. (3) This scheme sets up a screening plate. The screening groove on the screening plate can screen the crushed soil. Then the crushing blade can crush the large soil pieces again. At the same time, the screen can rotate during the up-and-down reciprocating motion of the filter screen, thus ensuring that the soil pieces can normally contact the crushing blade along the screening plate. During the rotation of the screening plate, the push plate can be moved by the installation rod. Then, during the movement of the push plate, the large soil pieces on the screening plate can be moved, thereby improving the crushing effect of the soil and increasing the contact area between the soil and the fertilizer solution, thus further improving the improvement effect of saline-alkali land. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 For the present invention Figure 3 Enlarged view at point B in the middle; Figure 5 For the present invention Figure 2 Enlarged view at point C; Figure 6 This is a cross-sectional view of the assembly of the mounting plate, crushing roller, roller, and reset pad of the present invention. Figure 7 This is a side sectional view of the mounting plate, crushing roller, and sealing block of the present invention; Figure 8 This is an assembly diagram of the push plate, sleeve, mounting rod, and crushing rod of the present invention; Figure 9 This is a schematic diagram of the sealing block of the present invention; Figure 10 This is a bottom view of the present invention.

[0020] Explanation of the labels in the diagram: 1. Base plate; 2. Vertical plate; 3. Roller; 4. Plow blade; 5. Mounting plate; 6. Crushing roller; 7. Crushing blade; 8. Belt; 9. Fertilizer applicator assembly; 901. Filter screen; 902. Elastic pad; 903. Cavity; 904. Inlet valve; 905. Drain valve; 906. Fertilizer pipe; 907. Vertical rod; 908. Push rod; 909. Fertilizer cylinder; 10. Linkage assembly; 101. Linkage groove; 102. Fertilizer application chamber; 103. Connecting groove; 104. Blocking block; 105. Inclined groove; 106. Return spring; 111. Rotating rod; 112. Stirring rod; 113. Rotating groove; 114. Protrusion; 115. Annular groove; 116. Elastic needle; 117. Spring telescopic rod; 118. Scraper; 119. Impact needle; 12. Screening assembly; 121. Screening plate; 122. Screening trough; 124. Reset pad; 125. Connecting rope; 126. Sleeve; 127. Mounting rod; 128. First spring; 129. Push plate; 1210. Crushing rod; 1211. Air chamber; 1212. Air pipe; 1213. Linkage plate; 13. Pulley; 14. Cleaning rod; 15. Glass slide. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1 to 10 A highly efficient saline-alkali land improvement device includes a base plate 1 and a plow blade 4. The base plate 1 is provided with rollers 3 and an mounting plate 5 is fixedly installed on the base plate 1. A crushing roller 6 is rotatably installed on the mounting plate 5, and crushing blades 7 are uniformly fixedly installed on the crushing roller 6. A belt 8 is installed between the rotating shaft of the crushing roller 6 and the rotating shaft of the roller 3. A fertilizer application component 9 is provided on the base plate 1. The fertilization assembly 9 includes a fertilizer cylinder 909 fixedly installed on the top wall of the base plate 1. A filter screen 901 is slidably installed inside the fertilizer cylinder 909. An elastic pad 902 is installed between the bottom wall of the filter screen 901 and the fertilizer cylinder 909. A cavity 903 is opened on the elastic pad 902. A water inlet valve 904 with its input end connected to the fertilizer cylinder 909 is inserted into the cavity 903. A drain valve 905 is inserted into the cavity 903. A fertilizer application pipe 906 is inserted into the output end of the drain valve 905. A vertical rod 907 extending to the bottom wall of the base plate 1 is fixedly installed on the bottom wall of the filter screen 901, and the bottom wall of the vertical rod 907 is inclined. Push rods 908 that cooperate with the vertical rod 907 are evenly fixedly installed on the crushing roller 6. A linkage assembly 10 that cooperates with the fertilizer application pipe 906 is provided on the mounting plate 5.

[0023] The linkage assembly 10 includes a linkage groove 101 formed on the mounting plate 5, and the fertilizer pipe 906 communicates with the linkage groove 101. The crushing roller 6 has a fertilizer chamber 102, and fertilizer holes are evenly formed on the fertilizer chamber 102. The linkage groove 101 has a connecting groove 103 that communicates with the fertilizer chamber 102. A blocking block 104 for controlling the flow rate is slidably installed in the connecting groove 103. An inclined groove 105 is formed on the blocking block 104. A return spring 106 is installed between the blocking block 104 and the connecting groove 103. A vertical plate 2 that rotates with the roller 3 is fixedly installed on the bottom plate 1. A screening assembly 12 that cooperates with the crushing roller 6 is provided on the mounting plate 5.

[0024] During the process of the base plate 1 driving the plow blade 4 to cultivate the saline-alkali land, the base plate 1 drives the roller 3 to rotate. Then, during the rotation of the roller 3, the belt 8 drives the crushing roller 6 to rotate. The rotation of the crushing roller 6 drives the crushing blade 7 to rotate, breaking up large clumps of soil after cultivation, thereby increasing the contact area between the soil and the fertilizer solution. Simultaneously, the rotation of the crushing roller 6 drives the push rod 908 to rotate. During the rotation of the push rod 908, it gradually contacts the inclined surface of the vertical rod 907, applying a pushing force to the inclined surface of the vertical rod 907. Under the action of this pushing force, the vertical rod 907 drives the filter screen 901 to move upwards. During the upward movement of the filter screen 901, the elastic pad 902 is stretched and has a tendency to recover. Then, during the stretching of the elastic pad 902, the cavity 903 passes through... The inlet valve 904 draws in the fertilizer liquid from the fertilizer cylinder 909. When the push rod 908 disengages from the vertical rod 907, the elastic pad 902 contracts under its own elastic force. During the contraction of the elastic pad 902, the fertilizer liquid in the cavity 903 fertilizes the crushed soil through the drain valve 905 and the fertilizer pipe 906. When the improvement device stops moving, the crushing roller 6 stops rotating as the improvement device stops moving. After the elastic pad 902 returns to its normal state, the elastic pad 902 stops expanding and contracting. At this time, the fertilizer liquid will no longer fertilize the land through the fertilizer pipe, thus avoiding a large amount of fertilizer liquid flowing out and accumulating in one place after the improvement device stops moving, which would cause secondary salinization of the local soil and seriously affect the improvement effect of saline-alkali land. This plays a role in improving the improvement effect of saline-alkali land.

[0025] By setting up filter screen 901, the fertilizer solution can be filtered, thereby preventing undissolved fertilizer from flowing into the saline-alkali land and affecting the fertilization effect. At the same time, the up-and-down shaking of filter screen 901 can also stir the fertilizer solution near filter screen 901 in fertilizer cylinder 909, thereby improving the fertilization effect of saline-alkali land and thus improving the improvement effect of saline-alkali land.

[0026] After the fertilizer solution flows through the drain valve 905 to the fertilizer pipe 906, it flows through the fertilizer pipe 906 to the connecting trough 101, increasing the pressure inside the connecting trough 101. Under the pressure, the fertilizer solution flows through the connecting groove 103 on the connecting trough 101 to the fertilizer chamber 102, and then through the fertilizer hole on the fertilizer chamber 102 to the crushed soil. During the process of crushing large pieces of soil by the crushing roller 6 driving the crushing blade 7, the fertilizer solution can also be sprayed onto the crushed soil through the fertilizer hole. At the same time, the crushing blade 7 can also stir the soil and fertilizer solution, thereby improving the fertilization effect. In addition, the fertilizer solution can also reduce dust in the crushed soil.

[0027] By setting the sealing block 104, the pressure inside the connecting trough 101 increases as the fertilizer liquid flows towards it. Under this pressure, the sealing block 104 moves outward from the connecting trough 103. During this movement, the inclined trough 105 moves into the fertilization chamber 102, increasing the cross-sectional area connecting the connecting trough 103 and the fertilization chamber 102. Furthermore, when the device travels rapidly, the elastic pad 902 expands at a higher frequency, thereby increasing the pressure inside the connecting trough. As the flow rate of fertilizer solution in 101 increases, the pressure in the linkage trough 101 gradually increases. As the pressure gradually increases, the thrust on the sealing block 104 gradually increases, and under the action of the thrust, it moves further into the fertilization chamber 102. As the sealing block 104 moves, the cross-sectional area at the connection between the connecting trough 103 and the fertilization chamber 102 increases, which can increase the flow rate of fertilizer in the fertilization chamber 102. Thus, when the improvement device is moving at high speed, the amount of fertilizer applied is increased, further improving the improvement effect.

[0028] like Figure 2 , Figure 3 , Figure 4 As shown, a rotating rod 111 is rotatably mounted on the top wall of the fertilizer cylinder 909 and slides with the filter screen 901. A stirring rod 112 is evenly fixedly mounted on the rotating rod 111. A rotating groove 113 is provided on the stirring rod 112. A protrusion 114 that slides with the rotating groove is fixedly mounted on the filter screen 901.

[0029] The top wall of the filter screen 901 is provided with an annular groove 115, and a plurality of elastic needles 116 are provided in the annular groove 115. A spring telescopic rod 117 with the output end pointing downward is fixedly installed on the stirring rod 112. A scraper 118 that fits against the filter screen 901 is fixedly installed on the output end of the spring telescopic rod 117. An impact needle 119 that cooperates with the elastic needles 116 is fixedly installed on the scraper 118.

[0030] By adopting the above technical solution, during the reciprocating motion of the filter screen 901, the filter screen 901 drives the protrusion 114 to reciprocate along the rotating groove 113. During the reciprocating motion of the protrusion 114 along the rotating groove 113, it can drive the rotating rod 111 to rotate. Then, during the rotation of the rotating rod 111, it drives the stirring rod 112 to rotate. During the rotation of the stirring rod 112, it can stir the fertilizer solution, thereby avoiding the fertilizer solution from stratifying and settling, which would affect the fertilization effect of the soil and lead to a worsening effect of saline-alkali land improvement, thus further improving the effect of saline-alkali land improvement.

[0031] During the rotation of the stirring rod 112, the spring telescopic rod 117 is driven to rotate, which in turn drives the scraper 118 to rotate. As the filter screen 901 moves up and down, the spring telescopic rod 117 can keep the scraper 118 in contact with the filter screen 901. During the rotation of the scraper 118, the undissolved fertilizer on the top wall of the filter screen 901 is rotated. Under the action of centrifugal force, the undissolved fertilizer moves into the annular groove 115, thereby avoiding clogging of the filter screen 901 and affecting the fertilization effect. During the rotation of the scraper 118, the impact pin 119 is driven to rotate. During the rotation of the impact pin 119, it can impact the elastic pin 116 and cause the elastic pin 116 to vibrate. During the vibration of the elastic pin 116, the solid waste in the annular groove 115 can be stirred, thereby further improving the fertilization effect.

[0032] like Figure 2 , Figure 6 , Figure 8 , Figure 9 As shown, the screening assembly 12 includes a screening plate 121 rotatably mounted on the mounting plate 5. Screening grooves 122 are evenly distributed on the screening plate 121. A circular groove is distributed on the mounting plate 5. A connecting plate 1213 is fixedly mounted on the screening plate 121. A reset pad 124 is installed between the connecting plate 1213 and the circular groove. A connecting rope 125 is installed between the screening plate 121 and the filter screen 901.

[0033] A sleeve 126 is fixedly installed on the top wall of the screening plate 121. An installation rod 127 is slidably and sealed inside the sleeve 126. A first spring 128 is installed between the installation rod 127 and the sleeve 126. A connecting plate 1213 is fixedly installed at the end of the installation rod 127 away from the first spring 128. A crushing rod 1210 is fixedly installed on the push plate 129. An air chamber 1211 is opened in the reset pad 124. An air pipe 1212 communicating with the sleeve 126 is inserted into the air chamber 1211.

[0034] By adopting the above technical solution, after the crushing roller 6 drives the crushing blades 7 to crush the soil, the soil gradually comes into contact with the screening plate 121. Then, some small soil particles move away from the screening plate 121 through the screening trough 122, while some large soil particles come into contact with the crushing blades 7 again along the inclined surface of the screening plate 121. At the same time, as the filter screen 901 moves upward, the filter screen 901 drives the screening plate 121 to rotate along the hinge point through the connecting rope 125. During the rotation of the screening plate 121 along the hinge point, the resetting pad 124 is stretched through the connecting plate 1213. As the filter screen 901 moves downward, the reset pad 124 contracts and drives the screening plate 121 to reset. Then, during the reciprocating rotation of the screening plate 121, the soil on the screening plate 121 can be rotated by the connecting plate 1213, thereby ensuring that small soil particles pass smoothly through the screening trough 122. During the shaking of large soil particles, large soil particles can move smoothly along the screening plate 121 and come into contact with the crushing blade 7, thereby improving the crushing effect of the soil, which can increase the fertilization effect of the soil and further improve the improvement effect of saline-alkali land.

[0035] During the retraction of the reset pad 124, the airflow inside the reset pad 124 flows into the sleeve 126 through the air pipe 1212, increasing the pressure inside the sleeve 126. Under the action of the pressure, the mounting rod 127 drives the push plate 129 to move. The push plate 129 can push large pieces of soil on the screening plate 121 towards the crushing blade 7. At the same time, during the movement of the push plate 129, the crushing rod 1210 is driven to perform preliminary cutting of the large pieces of soil, thereby further improving the crushing effect of the soil.

[0036] like Figure 7 As shown, the diameter ratio of the fertilizer pipe 906 to the connecting groove 103 is 3:1.

[0037] By adopting the above technical solution, and by making the diameter ratio of the fertilizer pipe 906 to the connecting groove 103 3:1, the fertilizer liquid in the connecting groove 101 can gradually increase, and during the stretching of the elastic pad 902, the fertilizer liquid in the connecting groove 101 can continue to fertilize the soil through the connecting groove 103, the fertilizer chamber 102, and the fertilizer hole, thereby improving the stability of fertilization.

[0038] like Figure 2 As shown, a pulley 13 that cooperates with the connecting rope 125 is fixedly installed on the base plate 1.

[0039] By adopting the above technical solution and setting the pulley 13, the sliding friction between the connecting rope 125 and the base plate 1 can be transformed into rolling friction between the connecting rope 125 and the pulley 13, thereby reducing the wear of the connecting rope 125.

[0040] like Figure 5As shown, cleaning rods 14 are uniformly fixedly installed on the bottom wall of the base plate 1.

[0041] By adopting the above technical solution, during the process of crushing soil by the crushing blade 7, some large pieces of soil will be mixed between two adjacent crushing blades 7. At this time, the cleaning rod 14 can clean the mixed soil, thereby avoiding soil mixed between the crushing blades 7 and affecting the crushing effect of the crushing blades 7.

[0042] like Figure 1 As shown, a transparent glass sheet 15 is embedded in the side wall of the fertilizer cylinder 909, and the glass sheet 15 is provided with scale lines.

[0043] By adopting the above technical solution, during the process of improving saline-alkali land, the user can observe the fertilizer liquid level in the fertilizer cylinder 909 by looking at the glass plate 15, so as to avoid the fertilizer liquid in the fertilizer cylinder 909 running out and affecting the improvement effect. At the same time, the user can also judge the specific storage amount of fertilizer liquid in the fertilizer cylinder 909 by looking at the scale line.

[0044] Instructions for use: During the tilling of saline-alkali land by the base plate 1 driving the plow blade 4, the base plate 1 drives the roller 3 to rotate. As the roller 3 rotates, the belt 8 drives the crushing roller 6 to rotate. The crushing roller 6 then drives the crushing blade 7 to rotate, breaking up large clumps of soil after tilling. Simultaneously, the rotation of the crushing roller 6 drives the push rod 908 to rotate. As the push rod 908 rotates, it gradually contacts the inclined surface of the vertical rod 907, applying a pushing force to the inclined surface of the vertical rod 907. Under the action of force, the vertical rod 907 drives the filter screen 901 to move upward. During the upward movement of the filter screen 901, the elastic pad 902 is stretched and has a tendency to recover. Then, during the stretching of the elastic pad 902, the cavity 903 draws fertilizer liquid from the fertilizer cylinder 909 through the water inlet valve 904. When the push rod 908 disengages from the vertical rod 907, the elastic pad 902 contracts under its own elastic force. Then, during the contraction of the elastic pad 902, the fertilizer liquid in the cavity 903 flows through the drain valve 905 and the fertilizer pipe 909. 6. Fertilizer is applied to the crushed soil. As the improvement device stops moving, the crushing roller 6 stops rotating. Then, after the elastic pad 902 returns to its normal state, the elastic pad 902 stops extending and retracting. At this time, the fertilizer solution will no longer be applied to the soil through the fertilizer pipe, thus preventing a large amount of fertilizer solution from flowing out and accumulating in one place after the improvement device stops moving. When the improvement device is moving rapidly, the extension and retraction frequency of the elastic pad 902 increases, thereby increasing the inflow of fertilizer solution into the linkage trough 101, which in turn causes the pressure inside the linkage trough 101 to gradually increase. As the pressure gradually increases, the thrust on the sealing block 104 gradually increases, and under the action of the thrust, it moves further into the fertilizer chamber 102. As the sealing block 104 moves, the cross-sectional area at the connection between the connecting groove 103 and the fertilizer chamber 102 increases, thereby increasing the amount of fertilizer flowing into the fertilizer chamber 102, thus increasing the amount of fertilizer applied when the improved device is moving at high speed. During the reciprocating movement of the filter screen 901, the stirring rod 112 is driven to rotate and the fertilizer liquid is stirred by the protrusion 114, the rotating groove 113, and the rotating rod 111.After the crushing roller 6 drives the crushing blades 7 to crush the soil, the soil gradually comes into contact with the screening plate 121. Smaller soil particles pass through the screening trough 122 and move away from the screening plate 121, while larger particles re-enter the screen along the inclined surface of the screening plate 121. Simultaneously, as the filter screen 901 moves upward, it drives the screening plate 121 to rotate along the hinge point via the connecting rope 125. During this rotation, the reset pad 124 is stretched. As the filter screen 901 moves downward, the reset pad 124 contracts and resets the screening plate 121. The reciprocating rotation of the screening plate 121 then rotates the soil on it, ensuring that small soil particles pass smoothly through the screening trough 122 and that larger soil particles move smoothly along the screening plate 121 and contact the crushing blades 7, thus improving the soil crushing effect.

[0045] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency saline-alkali soil improvement device, comprising a bottom plate (1) and a plough blade (4), a roller (3) is arranged on the bottom plate (1), a mounting plate (5) is fixedly arranged on the bottom plate (1), a crushing roller (6) is rotatably arranged on the mounting plate (5), and crushing blades (7) are uniformly fixedly arranged on the crushing roller (6); a belt (8) is arranged between the rotating shaft of the crushing roller (6) and the rotating shaft of the roller (3); and a fertilization assembly (9) is arranged on the bottom plate (1). characterized in that The fertilization assembly (9) comprises a fertilizer cylinder (909) fixedly arranged on the top wall of the bottom plate (1), a filter screen (901) slidably arranged in the fertilizer cylinder (909), an elastic pad (902) arranged between the bottom wall of the filter screen (901) and the fertilizer cylinder (909), a cavity (903) formed in the elastic pad (902), a water inlet valve (904) inserted into the cavity (903) and communicating with the fertilizer cylinder (909), a drain valve (905) inserted into the cavity (903), a fertilization pipe (906) inserted into the output end of the drain valve (905), a vertical rod (907) fixedly arranged on the bottom wall of the filter screen (901) and extending to the bottom wall of the bottom plate (1), wherein the bottom wall of the vertical rod (907) is inclined, and a push rod (908) uniformly fixedly arranged on the crushing roller (6) and matched with the vertical rod (907); and a linkage assembly (10) arranged on the mounting plate (5) and matched with the fertilization pipe (906).

2. The efficient saline-alkali soil improvement device according to claim 1, characterized in that: The linkage assembly (10) comprises a linkage groove (101) formed in the mounting plate (5) and communicating with the fertilization pipe (906), a fertilization cavity (102) formed in the crushing roller (6), fertilization holes uniformly formed in the fertilization cavity (102), a communication groove (103) formed in the linkage groove (101) and communicating with the fertilization cavity (102), a blocking block (104) slidably arranged in the communication groove (103) and used for controlling flow, an inclined groove (105) formed in the blocking block (104), and a return spring (106) arranged between the blocking block (104) and the communication groove (103); and a vertical plate (2) fixedly arranged on the bottom plate (1) and rotatably matched with the roller (3), and a screening assembly (12) arranged on the mounting plate (5) and matched with the crushing roller (6).

3. The efficient saline-alkali soil improvement device according to claim 2, characterized in that: A rotating rod (111) rotatably arranged on the top wall of the fertilizer cylinder (909) and slidably matched with the filter screen (901), stirring rods (112) uniformly fixedly arranged on the rotating rod (111), rotating grooves (113) formed in the stirring rods (112), and protrusions (114) fixedly arranged on the filter screen (901) and slidably matched with the rotating grooves.

4. The high-efficiency saline-alkali soil improvement device according to claim 3, characterized in that: The top wall of the filter screen (901) is provided with an annular groove (115), a plurality of elastic needles (116) are arranged in the annular groove (115), the stirring rod (112) is fixedly provided with a spring telescopic rod (117) with the output end downward, the output end of the spring telescopic rod (117) is fixedly provided with a scraper (118) abutting against the filter screen (901), and the scraper (118) is fixedly provided with an impact needle (119) matched with the elastic needle (116).

5. The efficient saline-alkali soil improvement device according to claim 4, characterized in that: The screening assembly (12) comprises a screening plate (121) rotatably arranged on the mounting plate (5), the screening plate (121) is uniformly provided with screening grooves (122), the mounting plate (5) is provided with a circular groove, the screening plate (121) is fixedly provided with a linkage plate (1213), the linkage plate (1213) and the circular groove are jointly provided with a reset pad (124), and the screening plate (121) and the filter screen (901) are jointly provided with a connecting rope (125).

6. The efficient saline-alkali soil improvement device according to claim 5, characterized in that: The top wall of the screening plate (121) is fixedly provided with a sleeve (126), the sleeve (126) is slidingly and sealingly provided with a mounting rod (127), the mounting rod (127) and the sleeve (126) are jointly provided with a first spring (128), one end of the mounting rod (127) away from the first spring (128) is fixedly provided with a push plate (129), the push plate (129) is fixedly provided with a crushing rod (1210), the reset pad (124) is provided with an air cavity (1211), and the air cavity (1211) is provided with an air pipe (1212) in communication with the sleeve (126).

7. The efficient saline-alkali soil improvement device according to claim 2, characterized in that: The ratio of the diameter of the fertilization pipe (906) to the communicating groove (103) is 3:

1.

8. The efficient saline-alkali soil improvement device according to claim 5, characterized in that: The bottom plate (1) is fixedly provided with a pulley (13) matched with the connecting rope (125).

9. The efficient saline-alkali soil improvement device according to claim 1, characterized in that: The bottom wall of the bottom plate (1) is uniformly fixedly provided with a cleaning rod (14).

10. The efficient saline and alkaline soil improvement device according to claim 1, characterized in that: The side wall of the fertilizer cylinder (909) is embedded with a glass sheet (15) made of transparent material, and the glass sheet (15) is provided with a scale line.

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