Agricultural multi-terrain fertilization equipment

Abstract

The present invention belongs to the field of soil fertilization, and specifically is an agricultural multi-terrain fertilization equipment, including a cart, a driving component, a sowing component, a stockpile bin and a splashing plate. With the development of production and planting industry, the planting area is gradually merged from independent individuals into a whole. The mechanized operation method can greatly improve the sowing and fertilization efficiency of crops, and save human resources at the same time. However, in the process of plant sowing, the spreading range and sowing depth of the fertilizer affect the germination of seeds and the normal growth of plants. Crop fertilizers are often granular. If they are directly exposed to the air after spreading, the volatilization degree of the fertilizer increases, which is not conducive to soil absorption and affects the normal nutritional needs of the subsequent growth of seeds. If the fertilizer spreading range is too large, the plants will not get sufficient nutritional supply. If the fertilizer spreading range is too concentrated, root burn will occur.

Description

Technical Field

[0001] The invention belongs to the field of soil fertilization, in particular to an agricultural multi-terrain fertilization device. Background Art

[0002] Fertilizer refers to a type of substance that provides one or more essential nutrients for plants, improves soil properties and increases soil fertility. It is one of the material bases of agricultural production. It mainly includes ammonium phosphate fertilizers, large-element water-soluble fertilizers, medium-element fertilizers, biological fertilizers, organic fertilizers, multi-dimensional field energy concentrated organic fertilizers, etc.

[0003] With the development of the production and planting industry, the planting areas have gradually merged from independent individuals into a whole. The use of mechanized operations can greatly improve the efficiency of crop sowing and fertilization, while saving human resources. However, in the process of plant sowing, the spread range and sowing depth of fertilizers affect the germination of seeds and the normal growth of plants. Crop fertilizers are often granular. If they are directly exposed to the air after spreading, the volatilization of fertilizers will increase, which is not conducive to soil absorption and affects the normal nutritional needs of subsequent seed growth. If the fertilizer is spread too widely, the plants will not get sufficient nutrition supply. If the fertilizer is spread too concentratedly, root burn will occur. Summary of the invention

[0004] In order to address the deficiencies of the prior art, the present invention provides an agricultural multi-terrain fertilization equipment, thereby solving the problems of abnormal plant growth and loss of effective fertilizer fertility caused by uneven fertilizer distribution range and spreading depth during soil fertilization.

[0005] The technical solution adopted by the present invention to solve its technical problems is an agricultural multi-terrain fertilization equipment, including a cart, a driving assembly, a sowing assembly, a stacking bin and a spreading plate. The upper part of the cart is fixedly equipped with a driving assembly for walking in the field, and the rear part of the cart is fixedly equipped with multiple sowing assemblies. The multiple sowing assemblies share a sowing shaft, and the sowing shaft and the driving assembly are connected by a pulley transmission. The upper part of the cart is fixedly equipped with a stacking bin, and a partition for isolating articles is provided in the stacking bin.

[0006] A vertical pipe for discharging seeds is fixedly installed at the lower part of the sowing component, a spreading plate is slidably installed on the vertical pipe, a spreading bin is circumferentially installed on the spreading plate, a fertilizer bin is fixedly installed on the sowing component, and the spreading bin and the fertilizer bin are connected by a hose, a compression spring is connected between the bottom of the spreading plate and the bottom of the vertical pipe, a propulsion rod is fixedly installed on the upper part of the spreading plate, a cam is fixedly installed on the sowing shaft, and the upper part of the propulsion rod slides against the outer wall of the cam.

[0007] Preferably, the splashing bin is a cylindrical structure, a splashing shaft is rotatably installed in the splashing bin, a blade wheel is fixedly installed on the splashing shaft, a hose is connected to the inner cavity of the blade wheel, a cutting cylinder is circumferentially installed at the bottom of the splashing plate, and the middle part of the cutting cylinder is connected to the splashing bin.

[0008] Preferably, the cutting tubes are evenly distributed around the vertical tube, the lower portion of the cutting tubes is open, and the lower opening portion of the cutting tubes is circumferentially provided with spring pieces that are inclined and contracted inwards.

[0009] Preferably, a downward pressure rod is slidably installed on the upper part of the cutting tube, and a contact block is fixedly installed on the lower part of the downward pressure rod, the contact block is located above the connecting pipe mouth between the cutting tube and the splashing bin, a tension spring is connected between the upper part of the contact block and the cutting tube, a tangential axis is rotatably installed at the edge of the splashing plate, a first plate is fixedly installed on the upper part of the vertical tube, a pull rope is connected to the first plate, and the end of the pull rope is fixedly connected to the upper end of the downward pressure rod after bypassing the tangential axis.

[0010] Preferably, a ratchet is fixedly mounted on the end of the splashing shaft, a second plate is fixedly mounted on the upper portion of the vertical pipe, a pawl is rotatably connected to the lower portion of the second plate, a torsion spring is connected between the pawl and the second plate, and the pawl rests on the ratchet.

[0011] Preferably, the bottom of the contact block is evenly provided with hemispherical holes and grooves, the contact block is slidably matched with the inner wall of the cutting tube, a plurality of spring pieces are surrounded in a cone shape, and the bottom of the spring pieces are all provided with arc surfaces that are slidably matched with the contact block.

[0012] Preferably, a plurality of blades are radially arranged on the blade wheel, and the ends of the blades are all cylindrical. A friction ring is fixedly arranged on the inner wall of the splash bin, and a gap is reserved between the friction ring and the blade wheel.

[0013] Preferably, the bottom position height of the cutting tube is lower than the bottom position height of the vertical tube, a push shovel for field grooving is provided at the front of the cart, and the push shovel is located at the front of the vertical tube, and a flattening roller is rotatably installed at the rear of the cart, and the flattening roller is located at the rear of the vertical tube.

[0014] Beneficial effects of the present invention:

[0015] (1) In the present invention, by extending the vertical pipe downward, the distance between the seed discharge port and the field soil can be shortened, thereby preventing the seeds from rolling around due to the influence of wind during the falling process. At the same time, some seeds are soaked in medicine before sowing to shorten the free fall of the seeds. The kinetic energy of the contact between the seeds and the soil can also be slowed down, avoiding the falling of the medicine powder on the surface of the seeds due to violent collision. By using multiple independent fertilizer bins and the use of stacking bins, fertilizers of different properties can be loaded at the same time. In the subsequent movement of the cart, multiple fertilizers can be spread around the seed falling area at the same time, thereby meeting the nutritional needs of the seeds for growth. At the same time, the resource consumption caused by multiple sowing and the damage to the sown area are avoided, so that it is suitable for soil fertilization in different terrains.

[0016] (2) In order to solve the problem of large fertilizer particles and slow soil absorption in the present invention, a friction ring is provided in the spreading bin. This mechanism can directly contact the fertilizer as the fertilizer follows the circumferential rotation of the blade wheel, thereby grinding part of the fertilizer particles on the contact surface into powder. Subsequently, in the subsequent fertilization process, the powdered fertilizer can skip the slow decomposition process and be directly absorbed by the soil or seeds, thereby providing sufficient nutrients for the initial growth of the seeds.

[0017] (3) In the present invention, multiple cutting tubes are distributed around the vertical tube in a circular shape with equal spacing. When the same or different kinds of cutting tubes are buried in the soil, the nutrients around the seeds are balanced during the subsequent germination and rooting process, which improves the normal growth state of the plant roots and the anti-lodging ability. The hemispherical hole groove arranged at the bottom of the contact block can increase the contact friction between the two during the process of pushing down the fertilizer, reduce the distribution range of the fertilizer to the surroundings during the landfill process, increase the landfill depth, and reduce the volatilization amount. At the same time, the conical surrounding spring pieces arranged circumferentially can improve the smoothness of its entry into the soil. At the same time, during the fertilizer filling process, it provides appropriate bottom support capacity, which is convenient for quantitative sowing of fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the first overall connection structure of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the main view;

[0021] Figure 3 for Figure 1 Schematic diagram from top view;

[0022] Figure 4 It is a partial three-dimensional structural schematic diagram of the sowing assembly of the present invention;

[0023] Figure 5 for Figure 4 A magnified schematic diagram of point A;

[0024] Figure 6 It is a schematic diagram of the positional relationship between the vertical pipe and the cutting pipe of the present invention;

[0025] Figure 7 for Figure 6 The enlarged schematic diagram of point B in the middle;

[0026] Figure 8 It is a partial three-dimensional structural schematic diagram of the splashing bin of the present invention;

[0027] Fig. 9 for Figure 8 An enlarged schematic diagram of point C;

[0028] Fig.10 It is a partial cross-sectional schematic diagram of the cutting tube in the present invention;

[0029] In the figure:

[0030] 1. Trolley; 2. Drive assembly; 3. Sowing assembly; 4. Stacking bin; 5. Sowing shaft; 6. Sprinkling disc; 7. Vertical pipe; 8. Sprinkling bin; 31. Fertilizer bin; 32. Hose; 71. Compression spring; 61. Propelling rod; 51. Cam; 81. Sprinkling shaft; 82. Blade wheel; 62. Insertion tube; 63. Shrapnel; 64. Pressing rod; 65. Contact block; 66. Tangential axis; 72. First plate; 73. Pull rope; 83. Ratchet; 74. Second plate; 75. Ratchet; 84. Friction ring; 11. Push shovel; 12. Flattening roller. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] The embodiment of the present invention solves the problem of abnormal plant growth and loss of effective fertilizer fertility caused by uneven distribution range and spreading depth of fertilizer during soil fertilization by providing an agricultural multi-terrain fertilization device.

[0033] With the development of production and planting industry, planting areas have gradually merged from independent individuals into a whole. The use of mechanized operation methods can greatly improve the efficiency of crop sowing and fertilization, while saving human resources. In order to improve the uniformity of crop fertilizer sowing, the fertilizer can be reasonably distributed around the seeds. Figures 1 to 4As shown, a preferred embodiment of the present invention proposes an agricultural multi-terrain fertilization equipment, including a cart 1, a driving component 2, a sowing component 3, a stockpile bin 4 and a splashing plate 6, wherein the driving component 2 for walking in the field is fixedly installed on the upper part of the cart 1, and a plurality of sowing components 3 are fixedly installed on the rear part of the cart 1, and a sowing shaft 5 is shared by the plurality of sowing components 3, and the sowing shaft 5 is connected to the driving component 2 through a pulley transmission, and a stockpile bin 4 is fixedly installed on the upper part of the cart 1, and a partition for isolating articles is arranged in the stockpile bin 4, and the partition is used to separate the stockpile bin 4 into a plurality of mutually isolated chambers, Fertilizers and seeds can be loaded at the same time and isolated from each other. In the subsequent process of spreading fertilizer by the seeder, users do not need to frequently travel back and forth between fields, which improves efficiency and saves additional resource consumption caused by the round-trip process. The driving component 2 is used to drive the cart 1, which can save the user's physical energy consumption during sowing and fertilizing. Through the rotation of the sowing shaft 5, the sowing component 3 has the ability to sow continuously. During the sowing process, the spreading plate 6 is used to evenly spread fertilizer around the seeds. While improving soil fertility, it avoids root burn caused by direct contact between seeds and fertilizers.

[0034] Furthermore, during the sowing and fertilization process, in order to prevent the weather environment from causing the seeds or fertilizers to roll outside the planting area, such as Figure 4 , Figure 6 and Figure 8 As shown, a vertical pipe 7 for discharging seeds is fixedly installed at the lower part of the sowing component 3, a spreading plate 6 is slidably installed on the vertical pipe 7, a spreading bin 8 is circumferentially installed on the spreading plate 6, a fertilizer bin 31 is fixedly installed on the sowing component 3, and the spreading bin 8 is connected to the fertilizer bin 31 through a hose 32, a compression spring 71 is connected between the bottom of the spreading plate 6 and the bottom of the vertical pipe 7, a propulsion rod 61 is fixedly installed on the upper part of the spreading plate 6, a cam 51 is fixedly installed on the sowing shaft 5, and the upper part of the propulsion rod 61 slides against the outer wall of the cam 51, and the downward extension of the vertical pipe 7 can shorten the distance between the seed discharge outlet and the field soil, thereby avoiding the seeding The seeds are affected by wind and roll around during the falling process. At the same time, some seeds are soaked in medicine before sowing to shorten the free fall of seeds, slow down the kinetic energy of contact between seeds and soil, and avoid the falling of medicine powder on the surface of seeds caused by violent collision. By using multiple independent fertilizer bins 31 and the stacking bin 4, fertilizers of different properties can be loaded at the same time, and in the subsequent movement of the cart 1, multiple fertilizers can be spread around the seed falling area at the same time, thereby meeting the nutritional needs of seed growth and avoiding the resource consumption caused by multiple sowing and the damage to the sown area;

[0035] Furthermore, crop fertilizers are often in granular form. If they are directly exposed to the air after spreading, the volatility of the fertilizer will increase, which is not conducive to soil absorption and affects the normal nutritional needs of subsequent seed growth. Figures 7 to 10 As shown, the splashing bin 8 is a cylindrical structure, a splashing shaft 81 is rotatably installed in the splashing bin 8, a blade wheel 82 is fixedly installed on the splashing shaft 81, the hose 32 is connected to the inner cavity of the blade wheel 82, a cutting tube 62 is circumferentially installed at the bottom of the splashing plate 6, the middle part of the cutting tube 62 is connected to the splashing bin 8, a plurality of blades are radially arranged on the blade wheel 82, the ends of the blades are all cylindrical, a friction ring 84 is fixedly arranged on the inner wall of the splashing bin 8, and a gap is reserved between the friction ring 84 and the blade wheel 82, a ratchet 83 is fixedly installed on the end of the splashing shaft 81, a second plate 74 is fixedly installed on the upper part of the vertical pipe 7, a ratchet 75 is rotatably connected to the lower part of the second plate 74, a torsion spring is connected between the ratchet 75 and the second plate 74, and the ratchet 75 rests on the ratchet 83;

[0036] During operation, along with the rotation of the sowing shaft 5, it drives the cam 51 to rotate synchronously. When the cam 51 rotates to the lower position, it pushes the propulsion rod 61 through the abutment effect and moves downward, and drives the splashing plate 6 to move downward as a whole through the propulsion rod 61. In this process, the splashing bin 8 and the cutting tube 62 move downward synchronously. In this process, under the reverse push of the ratchet 83, the pawl 75 rotates and contracts. At this time, the ratchet 83 does not rotate. As the downward movement continues, the lower end of the cutting tube 62 is gradually inserted into the soil. Subsequently, the fertilizer in the cutting tube 62 is directly buried in the soil, thereby reducing its exposure range to the air. When a rotation cycle of the cam 51 is completed, under the elastic force of the compression spring 71, the splashing disc 6, the splashing bin 8 and the cutting tube 62 all move up and reset. In this process, the pawl 75 is stuck by the positive push of the ratchet 83. Subsequently, under the abutment action Under the use, the ratchet 83 rotates, and then drives the blade wheel 82 to rotate through the spreading shaft 81. The gap between the circumferential blades of the blade wheel 82 can be used to quantitatively carry the fertilizer dropped from the hose 32, and along with the single fixed-angle rotation of the blade wheel 82, the fertilizer can be gradually transferred to the lower outlet of the spreading bin 8 and slide into the cutting tube 62, so as to prepare for the next fertilizer sowing work. Because the size of the fertilizer particles is basically the same, in order to ensure that the seeds can obtain sufficient fertilizer in the early stage of growth, a friction ring 84 is provided in the spreading bin 8. This mechanism can directly contact the fertilizer during the process of the fertilizer following the circumferential rotation of the blade wheel 82, and then grind part of the fertilizer particles on the contact surface to make it into powder. Then, in the subsequent fertilization process, the powdered fertilizer can skip the slow decomposition process and be directly absorbed by the soil or seeds, thereby providing sufficient nutrients for the initial growth of the seeds.

[0037] Further, in order to enable the fertilizer accumulated in the cutting tube 62 to be accurately and timely buried in the soil, Figures 5 to 10 As shown, a downward pressure rod 64 is slidably installed on the upper part of the cutting tube 62, and a contact block 65 is fixedly installed on the lower part of the downward pressure rod 64. The contact block 65 is located above the connecting pipe opening between the cutting tube 62 and the splashing bin 8. A tension spring is connected between the upper part of the contact block 65 and the cutting tube 62. A tangential shaft 66 is rotatably installed at the edge of the splashing plate 6. A first plate 72 is fixedly installed on the upper part of the vertical pipe 7. A pull rope 73 is connected to the first plate 72. The end of the pull rope 73 is fixedly connected to the upper end of the downward pressure rod 64 after passing around the tangential shaft 66.

[0038] During operation, one end of the pull rope 73 is at a fixed height. During the downward movement of the splashing plate 6, the pull rope 73 drives the tangential shaft 66 to move downward synchronously. At this time, the pull rope 73 is pulled, causing the lower pressure rod 64 to contract toward the inner side of the cutting tube 62. Under the action again, the contact block 65 slides downward along the inner wall of the cutting tube 62. When the contact block 65 contacts the fertilizer at the bottom of the cutting tube 62, the fertilizer is pushed out of the cutting tube 62. As the lower end of the cutting tube 62 advances toward the inner side of the soil, the fertilizer is buried in the soil. In addition, through the sliding and fitting action between the contact block 65 and the inner wall of the cutting tube 62, the inner wall of the cutting tube 62 can also be scraped and cleaned to avoid fertilizer residue or soil adhesion.

[0039] Furthermore, in order to evenly distribute the fertilizer around the seeds and avoid direct contact between the two, Figure 5 , Figure 8 and Fig.10 As shown, the cutting tubes 62 are evenly distributed around the vertical tube 7, the lower part of the cutting tube 62 is open, and the lower opening part of the cutting tube 62 is circumferentially provided with an inwardly inclined and contracted spring piece 63, the bottom of the contact block 65 is evenly provided with a hemispherical hole groove, the contact block 65 and the inner wall of the cutting tube 62 are slidably matched, and multiple spring pieces 63 are surrounded in a cone shape, and the bottom of the spring piece 63 is provided with an arc surface that slides with the contact block 65. Multiple cutting tubes 62 are distributed around the vertical tube 7 in a surrounding shape, and the spacing is equal. When the same or different kinds of materials are buried in the soil, the seeds are In the subsequent germination and rooting process, the nutrients around the seeds are balanced, the normal growth state of the plant roots is improved, and the anti-lodging ability is improved. The hemispherical hole groove arranged at the bottom of the contact block 65 can increase the contact friction between the two in the process of pushing the fertilizer down, reduce the dispersion range of the fertilizer to the surroundings during the landfill process, increase the landfill depth, and reduce the volatilization amount. At the same time, the circumferentially arranged conical surrounding spring pieces 63 can improve the smoothness of its entry into the soil, and at the same time, during the fertilizer filling process, provide appropriate bottom support capacity, which is convenient for the quantitative spreading of fertilizer.

[0040] Furthermore, in order to reduce the workload of users and facilitate timely coverage of seeds and fertilizers after sowing, Figures 1 to 3,as well as Figure 6 As shown, the bottom position height of the cutting tube 62 is lower than the bottom position height of the vertical tube 7, and the front part of the cart 1 is provided with a push shovel 11 for field grooving, and the push shovel 11 is located in the front part of the vertical tube 7, and the rear part of the cart 1 is rotatably installed with a flattening roller 12, and the flattening roller 12 is located in the rear part of the vertical tube 7. When working, the push shovel 11 is used for trenching before sowing, and then the seeds fall into the trenches, and the fertilizer is buried in the loose soil on both sides of the trenches. Then, the flattening roller 12 passes by, and through the rolling action, part of the soil falls back into the trenches to fill the seeds, and at the same time, the soil on the upper part of the fertilizer is compacted, which further reduces the volatilization amount and improves the effectiveness of the fertility.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An agricultural multi-terrain fertilization device, comprising a cart (1), a driving assembly (2), a sowing assembly (3) and a stacking bin (4), wherein the driving assembly (2) for traveling in the field is fixedly mounted on the upper part of the cart (1), a plurality of sowing assemblies (3) are fixedly mounted on the rear part of the cart (1), a sowing shaft (5) is shared by the plurality of sowing assemblies (3), and the sowing shaft (5) is connected to the driving assembly (2) via a pulley transmission, a stacking bin (4) is fixedly mounted on the upper part of the cart (1), and a partition for isolating articles is arranged in the stacking bin (4), characterized in that: Also includes: A splashing plate (6), wherein a vertical pipe (7) for discharging seeds is fixedly mounted at the lower part of the sowing assembly (3), the splashing plate (6) is slidably mounted on the vertical pipe (7), a splashing bin (8) is circumferentially mounted on the splashing plate (6), a fertilizer bin (31) is fixedly mounted on the sowing assembly (3), and the splashing bin (8) and the fertilizer bin (31) are connected via a hose (32), a compression spring (71) is connected between the bottom of the splashing plate (6) and the bottom of the vertical pipe (7), a propulsion rod (61) is fixedly mounted on the upper part of the splashing plate (6), a cam (51) is fixedly mounted on the sowing rotating shaft (5), and the upper part of the propulsion rod (61) slides against the outer wall of the cam (51).

2. The agricultural multi-terrain fertilization equipment according to claim 1, characterized in that: The splashing bin (8) is of a cylindrical structure. A splashing shaft (81) is rotatably mounted in the splashing bin (8). A blade wheel (82) is fixedly mounted on the splashing shaft (81). The hose (32) is in communication with the inner cavity of the blade wheel (82). A cutting tube (62) is circumferentially mounted at the bottom of the splashing plate (6). The middle portion of the cutting tube (62) is in communication with the splashing bin (8).

3. The agricultural multi-terrain fertilization equipment according to claim 2, characterized in that: The cutting tubes (62) are evenly distributed around the vertical tube (7), the lower part of the cutting tubes (62) is open, and the lower opening of the cutting tubes (62) is circumferentially provided with spring pieces (63) that are inclined and contracted inwards.

4. The agricultural multi-terrain fertilization equipment according to claim 2, characterized in that: A downward pressing rod (64) is slidably mounted on the upper part of the implantation tube (62), a contact block (65) is fixedly mounted on the lower part of the downward pressing rod (64), the contact block (65) is located above the connecting pipe opening between the implantation tube (62) and the splashing bin (8), a tension spring is connected between the upper part of the contact block (65) and the implantation tube (62), a tangential shaft (66) is rotatably mounted on the edge of the splashing plate (6), a first plate (72) is fixedly mounted on the upper part of the vertical tube (7), a pull rope (73) is connected to the first plate (72), and the end of the pull rope (73) is fixedly connected to the upper end of the downward pressing rod (64) after passing around the tangential shaft (66).

5. The agricultural multi-terrain fertilization equipment according to claim 2, characterized in that: A ratchet (83) is fixedly mounted on the end of the splashing shaft (81), a second plate (74) is fixedly mounted on the upper portion of the vertical pipe (7), a ratchet (75) is rotatably connected to the lower portion of the second plate (74), a torsion spring is connected between the ratchet (75) and the second plate (74), and the ratchet (75) abuts against the ratchet (83).

6. The agricultural multi-terrain fertilization equipment according to claim 4, characterized in that: The bottom of the contact block (65) is evenly provided with hemispherical holes and grooves, the contact block (65) is slidably matched with the inner wall of the implantation tube (62), a plurality of spring pieces (63) are surrounded in a cone shape, and the bottom of the spring pieces (63) is provided with an arc surface that is slidably matched with the contact block (65).

7. The agricultural multi-terrain fertilization equipment according to claim 2, characterized in that: The blade wheel (82) is provided with a plurality of blades in a radial shape, and the ends of the blades are all cylindrical. A friction ring (84) is fixedly provided on the inner wall of the splash bin (8), and a gap is reserved between the friction ring (84) and the blade wheel (82).

8. The agricultural multi-terrain fertilization equipment according to claim 2, characterized in that: The bottom position height of the cutting tube (62) is lower than the bottom position height of the vertical tube (7); a push shovel (11) for field grooving is arranged at the front of the cart (1), and the push shovel (11) is located at the front of the vertical tube (7); a flattening roller (12) is rotatably installed at the rear of the cart (1), and the flattening roller (12) is located at the rear of the vertical tube (7).

Images