Straw pulverizer for gardens

Abstract

The utility model relates to the field of garden maintenance, and discloses a garden straw pulverizer which comprises a shell, the upper surface of the shell is fixedly connected with a feeding hopper, and the inner wall of the shell is rotationally connected with a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft; first crushing rollers are fixedly connected to the outer surfaces of the first rotating shaft and the second rotating shaft, second crushing rollers are fixedly connected to the outer surfaces of the third rotating shaft and the fourth rotating shaft, and a filter plate is slidably connected to the position, located below the two second crushing rollers, of the inner wall of the shell; a straw box is slidably connected to the portion, below the filter plate, of the side surface of the shell. According to the straw smashing device, straw can be smashed multiple times, so that the straw can be thoroughly smashed, and the straw smashing efficiency and the straw smashing effect are improved.

Description

Technical Field

[0001] The present application relates to the field of garden maintenance, and in particular to a straw crusher for gardens. Background Art

[0002] Straw is the general term for the stems, leaves (ears) of mature crops, usually referring to the remaining parts after harvesting the seeds of wheat, rice, corn, potatoes, rapeseed, cotton, sugarcane and other crops (usually coarse grains);

[0003] In the process of garden maintenance and management, the treatment of agricultural waste such as straw has always been an important and thorny problem. Traditionally, most of these straws are treated by burning or landfilling, which not only wastes resources, but also easily causes environmental pollution and ecological damage. In recent years, with the enhancement of environmental awareness and the promotion of circular economy, straw crushers have gradually emerged on the market to crush straw. However, the structural design of the existing straw crushers for gardens is not reasonable enough, resulting in low crushing efficiency and difficulty in thoroughly crushing straw, thus affecting the subsequent reuse effect;

[0004] Regarding the above related technologies, the inventor believes that the straw crusher for gardens has the defect of insufficient crushing;

[0005] The above information disclosed in this background art is only used to increase the understanding of the background art of the present application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Utility Model Content

[0006] In order to solve the problem of insufficient crushing of the straw crusher for gardens, the present application provides a straw crusher for gardens.

[0007] The straw crusher for gardens provided by the present application adopts the following technical solutions:

[0008] A straw crusher for gardens includes a housing. A feed hopper is fixedly connected to the upper surface of the housing. The inner wall of the housing is rotatably connected with a first rotating shaft, a second rotating shaft, a third rotating shaft, and a fourth rotating shaft. First crushing rollers are fixedly connected to the outer surfaces of the first rotating shaft and the second rotating shaft. Second crushing rollers are fixedly connected to the outer surfaces of the third rotating shaft and the fourth rotating shaft. A filter plate is slidably connected to the inner wall of the housing below the two second crushing rollers. A straw box is slidably connected to the side surface of the housing below the filter plate.

[0009] Preferably, one end of the second rotating shaft penetrates through the housing to its outer surface and is fixedly connected with a driven gear.

[0010] Preferably, a U-shaped plate is fixedly connected to the side surface of the housing, a first motor is fixedly connected to the side surface of the U-shaped plate, one end of the first rotating shaft penetrates through the housing and the U-shaped plate and is fixedly connected to the output end of the first motor, and a driving gear is fixedly connected to the outer surface of the second rotating shaft, and the outer surface of the driving gear meshes with the outer surface of the driven gear.

[0011] Preferably, a plurality of support plates are fixedly connected to the inner side wall of the housing, dampers are fixedly connected to the opposite side surfaces of every two adjacent support plates up and down, and the two dampers are respectively fixedly connected to the upper surface and the lower surface of the filter plate.

[0012] Preferably, a second motor is fixedly connected to the side surface of the housing, a fifth rotating shaft is rotatably connected to the inner wall of the housing, and the outer surface of the fifth rotating shaft is always in contact with the lower surface of the filter plate. Two eccentric wheels are fixedly connected to the outer surface of the fifth rotating shaft, and one end of the fifth rotating shaft penetrates through the housing to its outer surface and is fixedly connected to the output end of the second motor.

[0013] In summary, the present application includes the following beneficial technical effects:

[0014] The long straws are initially crushed by the relative rotation of the two first crushing rollers so as to crush the long straws into shorter straws, and then the straws are secondarily crushed by the relative rotation of the two second crushing rollers so as to crush the straws into small strip shapes. The straws that are not sufficiently crushed are used together with the vibration of the filter plate and the rotation of the two second crushing rollers, so that the straws can be thoroughly crushed, thereby improving the crushing efficiency and the crushing effect; compared with the prior art, it has the effect of being able to thoroughly crush the straws. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall schematic diagram of the application embodiment;

[0016] Figure 2 is the internal structure diagram of the application embodiment;

[0017] Figure 3 is the vibration structure diagram of the filter plate.

[0018] Description of the reference numerals: 1, housing; 2, feed hopper; 31, first rotating shaft; 32, second rotating shaft; 33, first crushing roller; 41, third rotating shaft; 42, fourth rotating shaft; 43, second crushing roller; 5, filter plate; 6, straw box; 7, driven gear; 8, U-shaped plate; 9, first motor; 10, driving gear; 11, support plate; 12, damper; 13, fifth rotating shaft; 14, eccentric wheel; 15, second motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further elaborates on this application in conjunction with the attached Figures 1-3 drawings for a more detailed description.

[0020] An embodiment of this application discloses a straw crusher for gardens. Referring to Figure 1 , Figure 2 , Figure 3 , it includes a cuboid cavity-shaped outer shell 1, and a feed hopper 2 is fixedly connected to the upper surface of the outer shell 1 so that the straw to be crushed can be poured into the outer shell 1 through the feed hopper 2 for crushing. A columnar first rotating shaft 31 and a columnar second rotating shaft 32 are rotatably connected to the inner wall of the outer shell 1. First crushing rollers 33 are fixedly connected to the outer surfaces of the first rotating shaft 31 and the second rotating shaft 32. By rotating the first rotating shaft 31, the second rotating shaft 32 and the two first crushing rollers 33 are driven to rotate, and the straw is initially crushed by the relative rotation of the two first crushing rollers 33 to crush the long straw into shorter straw for subsequent secondary crushing. A columnar third rotating shaft 41 and a columnar fourth rotating shaft 42 are rotatably connected to the inner wall of the outer shell 1 below the first crushing rollers 33. Second crushing rollers 43 are fixedly connected to the outer surfaces of the third rotating shaft 41 and the fourth rotating shaft 42. By rotating the third rotating shaft 41, the fourth rotating shaft 42 and the two second crushing rollers 43 are driven to rotate, and the straw is secondarily crushed by the relative rotation of the two second crushing rollers 43 to crush the straw into small strip shapes, thereby improving the crushing efficiency and effect for subsequent composting and reuse. A grid plate-shaped filter plate 5 is slidably connected to the inner wall of the outer shell 1 below the two second crushing rollers 43, and a box-shaped straw box 6 is slidably connected to the side surface of the outer shell 1 below the filter plate 5. When the two second crushing rollers 43 rotate relatively to secondarily crush the straw, the vibration of the filter plate 5 can accelerate the passage of the straw crushed into a certain size, and then it falls into the lower straw box 6 for centralized collection, while the uncrushed straw stays on the upper surface of the filter plate 5 and is sufficiently crushed again by the rotation of the two second crushing rollers 43 and the vibration of the filter plate 5, thereby improving the crushing efficiency of the straw.

[0021] Referring to Figure 2, one end of the second rotating shaft 32 penetrates through the housing 1 to its outer surface and is fixedly connected with a driven gear 7. A U-shaped plate 8 is fixedly connected to the side surface of the housing 1. A first motor 9 is fixedly connected to the side surface of the U-shaped plate 8. One end of the first rotating shaft 31 penetrates through the housing 1 and the U-shaped plate 8 and is fixedly connected to the output end of the first motor 9. A driving gear 10 is fixedly connected to the outer surface of the second rotating shaft 32. The outer surface of the driving gear 10 meshes with the outer surface of the driven gear 7. So as to drive the first rotating shaft 31 to rotate through the first motor 9, thereby driving the driving gear 10 to rotate. Then, under the meshing action of the outer surfaces of the driving gear 10 and the driven gear 7, the driven gear 7 is driven to rotate, thereby driving the second rotating shaft 32 to rotate, so that the two first crushing rollers 33 rotate towards each other to crush the straw.

[0022] Refer to Figure 3 , a second motor 15 is fixedly connected to the side surface of the housing 1. A columnar fifth rotating shaft 13 is rotatably connected to the inner wall of the housing 1. The outer surface of the fifth rotating shaft 13 is always in contact with the lower surface of the filter plate 5. Two circular plate-shaped eccentric wheels 14 are fixedly connected to the outer surface of the fifth rotating shaft 13. One end of the fifth rotating shaft 13 penetrates through the housing 1 to its outer surface and is fixedly connected to the output end of the second motor 15. Secondly, a plurality of plate-shaped support plates 11 are fixedly connected to the inner side wall of the housing 1. Damping devices 12 are fixedly connected to the opposite side surfaces of every two adjacent upper and lower support plates 11. The two damping devices 12 are respectively fixedly connected to the upper surface and the lower surface of the filter plate 5. So as to drive the fifth rotating shaft 13 to rotate through the second motor 15, thereby driving the eccentric wheels 14 to rotate. At the same time, they are used together with the resilience of the damping devices 12, so as to drive the filter plate 5 to slide up and down for vibration, so as to cooperate with the second crushing roller 43 to crush the straw that has not been fully crushed until it can pass through the grid on the filter plate 5, so as to thoroughly crush the straw.

[0023] The implementation principle of a straw crusher for gardens in an embodiment of this application is as follows: The straw to be crushed is poured into the housing 1 through the feed hopper 2, and then the first motor 9 drives the first rotating shaft 31 to rotate, thereby driving the driving gear 10 to rotate. Then, under the meshing action on the outer surfaces of the driving gear 10 and the driven gear 7, the driven gear 7 is driven to rotate, thereby driving the second rotating shaft 32 to rotate, so that the two first crushing rollers 33 rotate towards each other to initially crush the straw, in order to crush the long straw into shorter straw. The straw after initial crushing falls between the two lower second crushing rollers 43, and the straw is secondarily crushed by the relative rotation of the two second crushing rollers 43, in order to crush the straw into small strip shapes. The straw that cannot pass through the mesh of the filter plate 5 stays on the upper surface of the filter plate 5. The second motor 15 drives the fifth rotating shaft 13 to rotate, thereby driving the eccentric wheel 14 to rotate. At the same time, it cooperates with the rebound action of the damper 12 to drive the filter plate 5 to slide up and down for vibration, so as to cooperate with the second crushing roller 43 to crush the straw that has not been fully crushed until it can pass through the mesh on the filter plate 5, so that the straw can be thoroughly crushed, thereby improving the crushing efficiency and crushing effect, in order to carry out subsequent composting and reuse. The vibration of the filter plate 5 enables the thoroughly crushed straw to quickly pass through the filter plate 5 and fall into the lower straw box 6 for centralized collection, and the vibration of the filter plate 5 can prevent the mesh from being blocked and avoid affecting the crushing efficiency.

[0024] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change;

[0025] Second: In the attached drawings of the disclosed embodiments of this utility model, only the structures related to the disclosed embodiments of this application are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of this utility model can be combined with each other;

[0026] Finally: The above are only the preferred embodiments of this utility model and are not used to limit this utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this utility model shall be included within the protection scope of this utility model.

[0027] The above are all the preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A garden straw crusher, comprising a housing (1), characterized in that: The upper surface of the shell (1) is fixedly connected to a feed hopper (2); the inner wall of the shell (1) is rotatably connected to a first rotating shaft (31), a second rotating shaft (32), a third rotating shaft (41), and a fourth rotating shaft (42); the outer surfaces of the first rotating shaft (31) and the second rotating shaft (32) are fixedly connected to a first crushing roller (33); the outer surfaces of the third rotating shaft (41) and the fourth rotating shaft (42) are fixedly connected to a second crushing roller (43); the inner wall of the shell (1) is slidably connected to a filter plate (5) below the two second crushing rollers (43); and the side surface of the shell (1) is slidably connected to a straw box (6) below the filter plate (5).

2. A garden straw crusher according to claim 1, characterized in that: One end of the second rotating shaft (32) passes through the housing (1) to its outer surface and is fixedly connected to a driven gear (7).

3. A garden straw crusher according to claim 2, characterized in that: A U-shaped plate (8) is fixedly connected to the side surface of the housing (1), a first motor (9) is fixedly connected to the side surface of the U-shaped plate (8), one end of the first rotating shaft (31) passes through the housing (1) and the U-shaped plate (8) and is fixedly connected to the output end of the first motor (9), and an outer surface of the second rotating shaft (32) is fixedly connected to a driving gear (10), and the outer surface of the driving gear (10) meshes with the outer surface of the driven gear (7).

4. A garden straw crusher according to claim 1, characterized in that: A plurality of support plates (11) are fixedly connected to the inner side wall of the outer shell (1), and a damper (12) is fixedly connected to the opposite side surfaces of each two upper and lower adjacent support plates (11), and the two dampers (12) are respectively fixedly connected to the upper surface and the lower surface of the filter plate (5).

5. The garden straw crusher according to claim 1, characterized in that: A second motor (15) is fixedly connected to the side surface of the outer shell (1), a fifth rotating shaft (13) is rotatably connected to the inner wall of the outer shell (1), and the outer surface of the fifth rotating shaft (13) is always in contact with the lower surface of the filter plate (5), two eccentric wheels (14) are fixedly connected to the outer surface of the fifth rotating shaft (13), and one end of the fifth rotating shaft (13) passes through the outer shell (1) to its outer surface and is fixedly connected to the output end of the second motor (15).

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