Straw pulverizer
By introducing a dust collection device and a filter system into the straw crusher, the problems of dust pollution and straw waste during the crushing process have been solved, achieving environmentally friendly and efficient straw crushing.
Patent Information
- Application Number
- CN202422945872.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing straw crushers generate a large amount of dust during the crushing process, which affects the environment and the health of users, and also leads to the problem of straw waste.
A straw crusher was designed, equipped with a dust collection device and a filter system. The dust collection device adsorbs dust and debris, and the dust is collected in a collection box after being filtered by the filter. The unfiltered debris can be re-entered into the crusher for reuse.
It effectively reduces dust dispersion, lowers the risk of users inhaling dust, prevents straw waste, and achieves an environmentally friendly and efficient crushing process.
Smart Images

Figure CN223528550U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crushing device technology, specifically a straw crusher. Background Technology
[0002] Straw is a general term for the stems and leaves (ears) of mature crops. It usually refers to the remaining part of wheat, rice, corn, potatoes, rapeseed, cotton, sugarcane, and other crops (usually coarse grains) after the grains are harvested. More than half of the products of crop photosynthesis are found in straw. Straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium, and organic matter, making it a versatile and renewable biological resource. Straw is also a type of roughage.
[0003] In existing technologies, straw crushers generate a large amount of dust when crushing straw, which may affect the surrounding environment. When the fine dust in the air is inhaled by the user, it may affect their health and also waste straw to some extent. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a straw crusher to solve the technical problem of dust generated during straw crushing affecting the environment and the health of users.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a straw crusher, comprising a crusher body, the crusher body including a box, a fixed frame fixedly connected to one side surface of the box, a dust collection device fixedly connected to the top of the fixed frame, a connecting pipe extending into the box interior fixedly connected to the upper surface of the dust collection device, a dust collection hood fixedly installed at the end of the connecting pipe away from the dust collection device, a filter screen movably installed inside the fixed frame, a slot is provided at the contact position between the fixed frame and the box, a baffle is movably connected to the inner wall of the slot, a channel matching the baffle is provided on the front surface of the fixed frame, an installation groove is provided on the side surface of the fixed frame away from the baffle, and a collection box located below the filter screen is movably fitted onto the inner wall of the installation groove.
[0006] By adopting the above technical solution, the straw can be crushed by the crushing roller inside the box. After crushing, the dust and debris generated during the crushing of the straw can be adsorbed by activating the dust suction device and connected to the dust suction hood. The dust and debris are then discharged into the fixed frame and filtered through the filter screen. This facilitates the collection of the filtered dust through the collection box. The baffle is then opened, and the debris on the filter screen is discharged back into the box for recycling through the slot. This prevents the dust from drifting into the air and reduces the possibility of the dust being inhaled by the user.
[0007] Furthermore, the filter screen is inclined, with one end of the filter screen flush with the lower end of the slot. A through groove is provided on the surface of the fixing frame above the mounting groove. A stop block is movably fitted on the inner wall of the through groove. One end of the stop block contacts the lower surface of the filter screen, and the end of the stop block away from the filter screen extends to the outside of the fixing frame. A fixing block located on the inner wall of the fixing frame is fixedly connected above the filter screen, and the fixing block is located above the stop block.
[0008] By adopting the above technical solution, the filter screen can be used to filter straw residue, the abutment block can be used to shake the filter screen, thereby facilitating the filtering of the residue, and the fixing block can be used to limit the position of the filter screen.
[0009] Furthermore, connecting blocks are fixedly connected to both sides of one end of the baffle, a slider is fixedly connected to the upper end of the baffle, a groove matching the slider is provided at the top of the slot, a handle is fixedly connected to the end of the baffle away from the connecting block, a protrusion is fixedly connected to the upper and lower surfaces of the baffle, and a slot matching the protrusion is provided at both the upper and lower ends of the slot.
[0010] By adopting the above technical solution, the baffle can be limited by the slider and the groove, and the baffle can be fixed and limited by the cooperation of the protrusion and the slot.
[0011] Furthermore, a handle is fixedly connected to one side surface of the collection box, two sets of limiting grooves are symmetrically opened at the bottom of the collection box, and two sets of limiting grooves matching the limiting blocks are symmetrically fixedly connected to the upper surface of the inner wall of the fixing frame.
[0012] By adopting the above technical solution, the cooperation between the limiting groove and the limiting block facilitates the limiting use of the collection box.
[0013] Furthermore, a feeding box that communicates with the box body is fixedly connected to the side surface of the box body away from the fixed frame, and a movable plate is movably connected to the inner wall of the end of the feeding box away from the box body. Torsion springs that are fixedly connected to the inner walls of the feeding box are fixedly connected to the upper positions of the two sides of the movable plate.
[0014] By adopting the above technical solution, the feed box can be shielded by the movable plate, thereby reducing the possibility of dust being dispersed into the air.
[0015] Furthermore, a hopper is fixedly connected to the bottom of the box, a discharge frame is fixedly connected to the bottom of the hopper, an inclined plate is fixedly connected to the inner wall of the discharge frame, an insert rod is movably provided on the upper surface of one end of the discharge frame, and a slot matching the insert rod is opened on the upper surface of the discharge frame.
[0016] By adopting the above technical solution, the insertion rod is inserted into the slot, which facilitates the fixing of the collection bag, the collection of the crushed residue, and to a certain extent prevents dust from scattering.
[0017] Furthermore, connecting plates are fixedly connected to both sides of the bottom end of the hopper, and two sets of support rods are symmetrically fixedly connected to the lower surface of the two sets of connecting plates. Two sets of support blocks that are fixedly connected to the bottom end of the fixed frame are symmetrically fixedly connected to the upper surface of one set of connecting plates.
[0018] By adopting the above technical solution, the box can be supported by the connecting plate and the support rod, and the fixed frame can be supported by the support block.
[0019] In summary, the present invention has the following beneficial effects: By placing the collection bag over the outer wall of the discharge frame, the present invention facilitates the collection of straw. The dust and debris generated during the crushing of straw are adsorbed by the dust suction device in conjunction with the connecting pipe and the dust suction hood, preventing the debris and dust from drifting and reducing the possibility of users inhaling dust. After the debris and dust fall into the fixed frame, they are filtered through the filter screen. The filtered dust is recycled through the collection box. The remaining uncrushed straw fragments that have been adsorbed can be dropped back into the box through the slot for crushing, thereby preventing straw waste. Attached Figure Description
[0020] Figure 1 This is a first-view overall structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;
[0022] Figure 3 This is a partial exploded view of the structure of this utility model;
[0023] Figure 4 This is a first-view disassembly diagram of the fixed frame structure of this utility model;
[0024] Figure 5 This is a disassembly diagram of the fixed frame structure from a second perspective of this utility model.
[0025] In the diagram: 100, main body of the crusher; 110, housing; 111, hopper; 1111, connecting plate; 1112, support rod; 1113, support block; 112, discharge frame; 1121, insert rod; 113, feed box; 1131, movable plate; 1132, torsion spring; 114, fixed frame; 1141, mounting groove; 1142, limit block; 1143, slot; 1144, slot; 1145, through groove; 115, dust collection device; 1151, connecting pipe; 1152, dust collection hood; 116, baffle; 1161, connecting block; 1162, slider; 1163, protrusion; 1164, handle; 117, filter screen; 118, stop block; 1181, fixed block; 119, collection box; 1191, handle; 1192, limit groove. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0027] The embodiments of this utility model will be described below based on its overall structure.
[0028] A type of straw crusher, such as Figure 1-5 As shown, the device includes a crusher body 100, which includes a housing 110. A fixed frame 114 is fixedly connected to one side surface of the housing 110. A dust collection device 115 is fixedly connected to the top of the fixed frame 114. A connecting pipe 1151 extending into the housing 110 is fixedly connected to the upper surface of the dust collection device 115. A dust collection hood 1152 is fixedly installed at the end of the connecting pipe 1151 away from the dust collection device 115. By using the dust collection device 115, the dust and debris generated when the straw inside the housing 110 is crushed are discharged into the fixed frame 114 through the connecting pipe 1151 and the dust collection hood 1152.
[0029] For example, a filter screen 117 is movably installed inside the fixed frame 114, and a slot 1143 is provided at the contact position between the fixed frame 114 and the box body 110. The filter screen 117 can filter the straw fragments after crushing, and the slot 1143 can discharge the straw fragments filtered by the filter screen 117 back into the box body 110 for recycling.
[0030] For example, a baffle 116 is movably connected to the inner wall of the slot 1143, and a channel matching the baffle 116 is opened on the front surface of the fixed frame 114. By pulling the baffle 116, the slot 1143 is opened, so that the debris inside the fixed frame 114 can be discharged into the box 110 for recycling.
[0031] For example, a mounting groove 1141 is provided on the side surface of the fixed frame 114 away from the baffle 116. A collection box 119 located below the filter screen 117 is movably sleeved on the inner wall of the mounting groove 1141. The dust filtered by the filter screen 117 can be collected and used through the collection box 119.
[0032] In some examples, please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 The filter screen 117 is set at an angle, with one end of the filter screen 117 flush with the lower end of the slot 1143. The filter screen 117 can be used to filter debris. Since the filter screen 117 is set at an angle, it is easy to discharge the debris on the filter screen 117 into the box 110 for recycling.
[0033] For example, a through groove 1145 is provided on the surface of the fixed frame 114 above the mounting groove 1141. A stop block 118 is movably sleeved on the inner wall of the through groove 1145. The stop block 118 can be installed and used through the through groove 1145.
[0034] For example, one end of the abutment 118 contacts the lower surface of the filter screen 117, and the end of the abutment 118 away from the filter screen 117 extends to the outside of the fixing frame 114. By applying pressure to the abutment 118, it is easy to drive the filter screen 117 to shake, thereby facilitating the filtering of debris through the filter screen 117.
[0035] For example, a fixing block 1181 located on the inner wall of the fixing frame 114 is fixedly connected above the filter screen 117. The fixing block 1181 is located above the abutment block 118. The filter screen 117 can be limited by the setting of the fixing block 1181.
[0036] In some examples, please refer to Figure 1 and Figure 3 A connecting block 1161 is fixedly connected to both sides of one end of the baffle 116. The connecting block 1161 can limit the position of the baffle 116.
[0037] For example, a slider 1162 is fixedly connected to the upper end of the baffle 116, and a groove matching the slider 1162 is provided at the top of the slot 1143. The baffle 116 can be limited by the slider 1162 cooperating with the groove.
[0038] For example, a handle 1164 is fixedly connected to one end of the baffle 116 away from the connecting block 1161. The baffle 116 can be pulled by the handle 1164, which makes it easier to open the slot 1143.
[0039] For example, the upper and lower surfaces of the baffle 116 are fixedly connected to a protrusion 1163 at one end of the slider 1162, and the upper and lower ends of the slot 1143 are provided with a slot 1144 that matches the protrusion 1163. The baffle 116 is conveniently fixed by the cooperation between the protrusion 1163 and the slot 1144.
[0040] In some examples, please refer to Figure 2 and Figure 5 A handle 1191 is fixedly connected to one side surface of the collection box 119. Two sets of limiting grooves 1192 are symmetrically opened at the bottom of the collection box 119. Two sets of limiting grooves 1192 that match the limiting block 1142 are symmetrically fixedly connected to the upper surface of the inner wall of the fixing frame 114. The handle 1191 makes it easy to pull the collection box 119. The cooperation between the limiting block 1142 and the limiting groove 1192 makes it easy to limit the use of the collection box 119.
[0041] In some examples, please refer to Figure 1 and Figure 2 A feeding box 113 connected to the side surface of the box body 110 away from the fixed frame 114 is fixedly connected to the side surface of the box body 110. The feeding box 113 facilitates the feeding of straw into the box body 110 for crushing and use.
[0042] For example, a movable plate 1131 is movably connected to the inner wall of the end of the feed box 113 away from the box body 110. Torsion springs 1132, which are fixedly connected to the inner walls of the feed box 113, are fixedly connected to the upper positions of the two sides of the movable plate 1131. The torsion springs 1132 facilitate the movement of the movable plate 1131 for limiting use. The movable plate 1131 can shield the feed box 113, thereby reducing dust from entering the air.
[0043] In some examples, please refer to Figure 1 and Figure 2 The bottom of the box 110 is fixedly connected to a hopper 111, and the bottom of the hopper 111 is fixedly connected to a discharge frame 112. An inclined plate is fixedly connected to the inner wall of the discharge frame 112. The discharge frame 112 facilitates the discharge of the crushed straw inside the box 110, and the inclined plate facilitates the discharge of the straw.
[0044] For example, a rod 1121 is movably provided on the upper surface of one end of the discharge frame 112, and a slot matching the rod 1121 is opened on the upper surface of the discharge frame 112. By covering the outer wall of the discharge frame 112 with a collection bag and inserting the rod 1121 into the inner wall of the slot, it is easy to fix the collection bag, which facilitates the collection of the crushed straw and prevents the dust from spreading to a certain extent.
[0045] In some examples, please refer to Figure 1 and Figure 2The bottom two sides of the hopper 111 are fixedly connected with connecting plates 1111, and two sets of support rods 1112 are symmetrically fixedly connected to the lower surfaces of the two sets of connecting plates 1111. The connecting plates 1111 can work with the support rods 1112 to support the box 110.
[0046] For example, a set of connecting plates 1111 has two sets of support blocks 1113 that are fixedly connected to the bottom of the fixed frame 114 on the upper surface of the set of connecting plates 1111. The fixed frame 114 can be supported by the support blocks 1113.
[0047] The working principle of this utility model is as follows: When in use, the collection bag is placed on the outer wall of the discharge frame 112. The insertion rod 1121 is inserted into the inner wall of the slot to fix the collection bag on the discharge frame 112, which facilitates the collection and use of the crushed straw. By pushing the movable plate 1131, the straw is put into the feed box 113. The straw falls into the box body 110 through the feed box 113. The crushing roller inside the box body 110 crushes the straw for use.
[0048] Furthermore, when the straw is crushed, the dust collection device 115 is activated. The dust collection device 115, in conjunction with the connecting pipe 1151 and the dust collection hood 1152, can absorb the dust and debris generated when the straw is crushed. The dust is then discharged into the fixed frame 114 through the connecting pipe 1151. By applying downward pressure to the abutment block 118, the abutment block 118 causes the filter screen 117 to vibrate. The straw fragments are filtered through the filter screen 117, and the filtered dust falls into the collection box 119 for collection and use.
[0049] Furthermore, by pulling the baffle 116 out from inside the fixed frame 114 using the handle 1164, the unfiltered debris from the filter screen 117 falls into the box 110 through the slot 1143 for further crushing, thereby preventing straw waste.
[0050] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A straw crusher, comprising a crusher body (100), characterized in that: The main body (100) of the crusher includes a housing (110). A fixed frame (114) is fixedly connected to one side surface of the housing (110). A dust collection device (115) is fixedly connected to the top of the fixed frame (114). A connecting pipe (1151) extending into the housing (110) is fixedly connected to the upper surface of the dust collection device (115). A dust collection hood (1152) is fixedly installed at the end of the connecting pipe (1151) away from the dust collection device (115). A movable part is installed inside the fixed frame (114). The filter screen (117) has a slot (1143) at the contact position between the fixed frame (114) and the box (110). A baffle (116) is movably connected to the inner wall of the slot (1143). A channel matching the baffle (116) is opened on the front surface of the fixed frame (114). An installation groove (1141) is opened on the side surface of the fixed frame (114) away from the baffle (116). A collection box (119) located below the filter screen (117) is movably sleeved on the inner wall of the installation groove (1141).
2. The straw crusher according to claim 1, characterized in that: The filter screen (117) is inclined, with one end of the filter screen (117) flush with the lower end of the slot (1143). The surface of the fixed frame (114) is provided with a through groove (1145) above the mounting groove (1141). A stop block (118) is movably fitted on the inner wall of the through groove (1145). One end of the stop block (118) contacts the lower surface of the filter screen (117), and the end of the stop block (118) away from the filter screen (117) extends to the outside of the fixed frame (114). A fixing block (1181) is fixedly connected above the filter screen (117) and located on the inner wall of the fixed frame (114). The fixing block (1181) is located above the stop block (118).
3. The straw crusher according to claim 1, characterized in that: Connecting blocks (1161) are fixedly connected to both sides of one end of the baffle (116). A slider (1162) is fixedly connected to the upper end of the baffle (116). A groove matching the slider (1162) is provided at the top of the slot (1143). A handle (1164) is fixedly connected to the end of the baffle (116) away from the connecting block (1161). A protrusion (1163) is fixedly connected to the upper and lower surfaces of the baffle (116) and at the end of the slider (1162). A slot (1144) matching the protrusion (1163) is provided at both the upper and lower ends of the slot (1143).
4. A straw crusher according to claim 1, characterized in that: A handle (1191) is fixedly connected to one side surface of the collection box (119), and two sets of limiting grooves (1192) are symmetrically opened at the bottom of the collection box (119). Two sets of limiting grooves (1192) matching the limiting block (1142) are symmetrically fixedly connected to the upper surface of the inner wall of the fixing frame (114).
5. A straw crusher according to claim 1, characterized in that: A feeding box (113) connected to the box (110) is fixedly connected to the side surface of the box (110) away from the fixed frame (114). A movable plate (1131) is movably connected to the inner wall of the feeding box (113) away from the box (110). Torsion springs (1132) are fixedly connected to the inner walls of the feeding box (113) at the upper position of the two sides of the movable plate (1131).
6. A straw crusher according to claim 1, characterized in that: The bottom of the box (110) is fixedly connected to a feeding hopper (111), the bottom of the feeding hopper (111) is fixedly connected to a discharge frame (112), the inner wall of the discharge frame (112) is fixedly connected to an inclined plate, a plug rod (1121) is movably provided on the upper surface of one end of the discharge frame (112), and a slot matching the plug rod (1121) is opened on the upper surface of the discharge frame (112).
7. A straw crusher according to claim 6, characterized in that: The bottom two sides of the hopper (111) are fixedly connected with connecting plates (1111), and the lower surfaces of the two sets of connecting plates (1111) are symmetrically fixedly connected with two sets of support rods (1112), and the upper surface of one set of connecting plates (1111) is symmetrically fixedly connected with two sets of support blocks (1113) that are fixedly connected to the bottom of the fixed frame (114).