Earthworm seedling cultivation device
By adopting a double-layered tube guide plate structure and an interlocking spiral crushing component in the earthworm seedling cultivation equipment, the problems of condensate generation and frozen soil treatment efficiency in high-altitude and cold environments have been solved, achieving more efficient mixing uniformity and energy-saving effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING EXCEED BIO-ENG CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-07-14
AI Technical Summary
Existing earthworm seedling cultivation equipment suffers from condensation and severe microbial contamination due to the direct airflow from the ventilation openings to the top cover in cold environments. Traditional turning devices also experience high resistance and insufficient separation efficiency in frozen soil environments.
The protective cabin adopts a double-layer sleeve guide plate structure at the bottom, allowing cold air to enter from the bottom and be evenly dispersed. The motor drives the interlocking main and auxiliary spiral crushing components to simultaneously crush frozen soil and feed. The asymmetrical layout of the double spirals reduces the peak torque.
It effectively reduces condensate generation, improves mixing uniformity, lowers energy consumption, and enhances the efficiency of frozen soil treatment.
Smart Images

Figure CN224482651U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of earthworm seedling cultivation technology, specifically to an earthworm seedling cultivation device. Background Technology
[0002] Earthworms are invertebrates belonging to the genus *Pheretima* in the family Lymnaeidae of the class Oligochaeta. In high-altitude, cold regions where low temperatures slow the decomposition of organic matter, earthworms efficiently transform plant and animal remains into humus, shortening the nutrient cycle. Selecting and cultivating cold-resistant earthworm seedlings can provide a stable source of organic fertilizer for agriculture in cold regions, reducing reliance on chemical fertilizers. Simultaneously, earthworms can absorb kitchen waste and agricultural waste, lowering waste disposal costs in these areas and aligning with the principles of a circular economy.
[0003] Although the existing earthworm seedling cultivation equipment has many beneficial effects, the following problems still exist: When the ventilation duct is running in a cold environment, the linear structure of the ventilation duct causes the airflow to rush directly to the top cover, resulting in the generation of local condensate and aggravating microbial contamination. Secondly, in a frozen soil environment, the traditional turning device has high working resistance, and the single-axis crushing structure is not efficient enough in separating organic matter wrapped in ice crystals, thus reducing the standard deviation of mixing uniformity. Utility Model Content
[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.
[0005] 1. Technical problems to be solved:
[0006] To address the aforementioned issues of low-temperature condensation defects and frozen soil treatment efficiency, this utility model is proposed.
[0007] Therefore, the purpose of this utility model is to provide an earthworm seedling cultivation device. The bottom of the protective chamber is integrated with a double-layer sleeve. Cold air enters from the bottom through the double-layer sleeve. A guide plate is configured at the end of the sleeve to disperse the airflow evenly and avoid direct contact with the top cover, thereby reducing the amount of condensate generated. At the same time, a motor drives the main gear, which drives the main spiral and the auxiliary spiral to rotate in opposite directions through the interlocking driven gears, thereby achieving synchronous crushing of frozen soil and feed, reducing the standard deviation of mixing uniformity. Meanwhile, the asymmetrical layout of the double spiral reduces the peak torque, making it more energy-efficient than traditional crushing mechanisms.
[0008] 2. Technical Solution:
[0009] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0010] An earthworm seedling cultivation device includes a ventilation assembly, which includes a protective chamber. An outer sleeve and an inner sleeve pass through the bottom of the inner cavity of the protective chamber. A cultivation chamber is fixedly connected to the bottom of the inner cavity of the protective chamber by bolts. A heating pipe is fixedly connected to the bottom of the inner cavity of the cultivation chamber by clips. A cultivation bed is set inside the cultivation chamber. A sliding groove is opened on the side wall of the cultivation bed. A partition is slidably connected inside the sliding groove. The partition is used to separate the crushing assembly from the cultivation bed, so as to protect the earthworm seedlings and prevent incompletely crushed frozen soil from falling directly into the cultivation bed. A crushing assembly is set on the top of the cultivation bed. The crushing assembly includes a main spiral and a secondary spiral.
[0011] As a preferred embodiment of the earthworm seedling cultivation equipment of this utility model, the bottom of the protective chamber is fixedly connected to a base by screws, the side wall of the protective chamber is rotatably connected to a side door by hinges, multiple insulation boards are adhered to the side wall of the protective chamber, the top of the protective chamber is fixedly connected to a top cover by screws, the top of the top cover is rotatably connected to a main door by hinges, and the top of the outer sleeve and the inner sleeve are welded with guide plates. The guide plates guide and diffuse the airflow while facilitating the centered and fixed connection of the outer sleeve and the inner sleeve.
[0012] As a preferred embodiment of the earthworm seedling cultivation equipment of this utility model, the side wall of the cultivation chamber is fixedly connected with multiple heating wires by screws, the side wall of the heating wires is fixedly connected with baffles by screws, the top of the heating tube is covered with a support plate, the support plate insulates the heat to prevent the bottom temperature of the cultivation bed from being too high, while increasing the contact area, dispersing concentrated stress, and enhancing the pressure resistance of the heating tube, and the side wall of the cultivation chamber is provided with a control panel that electrically connects the heating tube and the heating wires.
[0013] In a preferred embodiment of the earthworm seedling cultivation equipment of this utility model, the crushing component includes a feeding trough, with multiple insert blocks integrally formed at the bottom of the feeding trough. The main spiral is inserted into the side wall of the feeding trough, a main gear is welded to the side wall of the main spiral, a motor is inserted into the side wall of the main gear, a driven gear meshes with the outer circumference of the main gear, and the auxiliary spiral is welded to the side wall of the driven gear. A housing is fixedly connected to the side wall of the feeding trough by screws, and a button electrically connected to the motor is provided on the top of the housing.
[0014] As a preferred embodiment of the earthworm seedling cultivation equipment of this utility model, the top of the breeding bed is provided with multiple slots that match the shape and size of the insertion block at the corresponding positions of the insertion holes. The side wall of the breeding bed is integrally formed with an installation block that matches the shape and size of the installation groove. Multiple drainage outlets are provided on both sides of the bottom of the breeding bed. A filter plate is placed at the bottom of the inner cavity of the breeding bed. The top of the filter plate is covered with a filter cloth. A water collection trough is slidably connected to the bottom of the drainage outlet.
[0015] As a preferred embodiment of the earthworm seedling cultivation equipment of this utility model, the outer sleeve has multiple circular holes on its outer circumference, and the inner sleeve has multiple circular through holes that are staggered with the circular holes on its outer circumference.
[0016] In a preferred embodiment of the earthworm seedling cultivation equipment of this utility model, the feeding trough includes an inclined plate with an inclination angle of 60 degrees, and the main spiral and the auxiliary spiral have opposite thread directions.
[0017] 3. Beneficial effects:
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This earthworm seedling cultivation equipment features a double-layered sleeve integrated at the bottom of the protective chamber. Cold air enters from the bottom through the double-layered sleeve, and a guide plate is installed at the end of the sleeve to evenly disperse the airflow, preventing direct contact with the top cover and reducing the amount of condensate generated.
[0020] This earthworm seedling cultivation equipment uses a motor to drive the main gear, which in turn drives the main and auxiliary spirals to rotate in opposite directions through interlocking driven gears. This achieves simultaneous crushing of frozen soil and feed, reducing the standard deviation of mixing uniformity. At the same time, the asymmetrical layout of the double spirals reduces the peak torque, making it more energy-efficient than traditional crushing mechanisms. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0022] Figure 1 This is a schematic diagram of the overall structure of an earthworm seedling cultivation device according to the present invention;
[0023] Figure 2 This is a schematic diagram of the second overall structure of an earthworm seedling cultivation device according to the present invention;
[0024] Figure 3This is a schematic diagram of the ventilation component structure of an earthworm seedling cultivation device according to the present invention;
[0025] Figure 4 This is a schematic diagram of the cultivation chamber structure of an earthworm seedling cultivation device according to this utility model;
[0026] Figure 5 This is a schematic diagram of the crushing component structure of an earthworm seedling cultivation device according to the present invention;
[0027] Figure 6 This is a schematic diagram of the breeding bed structure of an earthworm seedling cultivation device according to this utility model.
[0028] The following are the labeling instructions in the diagram: 100, Ventilation assembly; 110, Protective chamber; 111, Side door; 112, Base; 113, Insulation board; 120, Top cover; 121, Main door; 130, Guide plate; 140, Outer sleeve; 150, Inner sleeve; 200, Cultivation chamber; 201, Control panel; 202, Mounting slot; 210, Heating wire; 211, Baffle; 220, Heating tube; 221, Support plate; 300, Crushing assembly; 310, Feed chute; 311, Insert block; 320, Main auger; 321, Main gear; 322, Motor; 330, Secondary auger; 331, Driven gear; 340, Outer casing; 341, Button; 400, Cultivation bed; 401, Slot; 410, Filter plate; 420, Filter cloth; 430, Water collection trough; 440, Partition. Detailed Implementation
[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0030] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0031] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0032] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.
[0034] This utility model provides an overall structural schematic diagram of an embodiment of an earthworm seedling cultivation device, including:
[0035] Please see Figures 1-6 This embodiment of an earthworm seedling cultivation device includes a ventilation component 100, which includes a protective chamber 110. An outer sleeve 140 and an inner sleeve 150 pass through the bottom of the inner cavity of the protective chamber 110. A cultivation chamber 200 is fixedly connected to the bottom of the inner cavity of the protective chamber 110 by bolts. A heating pipe 220 is fixedly connected to the bottom of the inner cavity of the cultivation chamber 200 by a buckle. A breeding bed 400 is provided inside the cultivation chamber 200. A sliding groove is provided on the side wall of the breeding bed 400. A partition 440 is slidably connected inside the sliding groove to protect the earthworm seedlings from direct contact with the crushing component 300 when feeding the earthworm seedlings. A crushing component 300 is provided on the top of the breeding bed 400. The crushing component 300 includes a main spiral 320 and a secondary spiral 330.
[0036] It is worth noting that, for the ventilation and heat preservation performance of the protective chamber 110, specifically, the bottom of the protective chamber 110 is fixedly connected to the base 112 by screws, the side wall of the protective chamber 110 is rotatably connected to the side door 111 by hinges for easy maintenance by the user, four heat preservation boards 113 are bonded to the side wall of the protective chamber 110, the heat preservation boards 113 are polyurethane heat preservation boards, the top of the protective chamber 110 is fixedly connected to the top cover 120 by screws, the top of the top cover 120 is rotatably connected to the main door 121 by hinges for easy delivery of frozen soil and feed by the user, the top of the outer sleeve 140 and the inner sleeve 150 are welded with a guide plate 130, the guide plate 130 is a conical structure, which allows the rising gas to diffuse downwards, avoid direct impact on the top cover 120, and reduce the formation of condensation at the bottom of the top cover 120.
[0037] Next, in order to increase the internal temperature of the cultivation chamber 200, specifically, multiple heating wires 210 are fixedly connected to the side wall of the cultivation chamber 200 by screws to facilitate heating the side wall of the breeding bed 400. A baffle 211, which is a transparent PC board, is fixedly connected to the side wall of the heating wires 210 by screws. A support plate 221, which is a carbon fiber composite board, covers the top of the heating tubes 220 to prevent the bottom of the breeding bed 400 from getting too hot. A control panel 201 that electrically connects the heating tubes 220 and the heating wires 210 is provided on the side wall of the cultivation chamber 200. Two or more mounting slots 202 are opened on the inner side wall of the cultivation chamber 200 to facilitate the installation of the breeding bed 400.
[0038] Meanwhile, to facilitate the crushing and mixing of frozen soil and feed, the crushing component 300 specifically includes a feed trough 310. The bottom of the feed trough 310 is integrally formed with multiple inserts 311, which facilitates the installation of the crushing component 300 on the top of the breeding bed 400. A main spiral 320 is inserted into the side wall of the feed trough 310. A main gear 321 is welded to the side wall of the main spiral 320. A motor 322 is inserted into the side wall of the main gear 321. A driven gear 331 meshes with the outer circumference of the main gear 321. A secondary spiral 330 is welded to the side wall of the driven gear 331. A housing 340 is fixedly connected to the side wall of the feed trough 310 by screws. A button 341 electrically connected to the motor 322 is provided on the top of the housing 340, which allows the user to control the start and stop of the motor 322 by the button 341.
[0039] Furthermore, to facilitate the cultivation of earthworm seedlings inside the breeding bed 400, specifically, the top of the breeding bed 400 has multiple slots 401 that match the shape and size of the insertion block 311, which facilitates the insertion and installation of the crushing component 300. The side wall of the breeding bed 400 is integrally formed with an installation block that matches the shape and size of the installation groove 202, which facilitates the insertion and installation of the breeding bed 400 inside the cultivation chamber 200. Two drainage outlets are opened on both sides of the bottom of the breeding bed 400. A filter plate 410 is placed at the bottom of the inner cavity of the breeding bed 400, and a filter cloth 420 is covered on top of the filter plate 410 to facilitate drainage while preventing other particulate impurities from falling out of the breeding bed 400. Multiple insertion slots are integrally formed on both sides of the bottom of the breeding bed 400, corresponding to the drainage outlets. A water collection trough 430 is inserted into the insertion slot. The top opening of the water collection trough 430 matches the shape of the drainage outlet and is vertically aligned. The water collection trough 430 is used to collect the discharged water.
[0040] It is worth noting that, in order to facilitate air entry, specifically, the outer wall of the outer sleeve 140 is provided with multiple circular holes, and the outer wall of the inner sleeve 150 is provided with multiple circular through holes that are distributed alternately with the circular holes. The alternating distribution of the circular holes and circular through holes divides the cold air flow, reduces the airflow speed, and avoids the flow velocity from causing an imbalance in the internal pressure of the interlayer between the outer sleeve 140 and the inner sleeve 150.
[0041] Finally, in order to improve the crushing efficiency of the crushing component 300, specifically, the feed chute 310 includes an inclined plate with an inclination angle of 60 degrees to facilitate the sliding of frozen soil and feed, and the main spiral 320 and the auxiliary spiral 330 have opposite thread directions.
[0042] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.
[0043] Combination Figures 1-6 The earthworm seedling cultivation equipment of this embodiment is used in the following specific process:
[0044] 1. Before raising earthworm seedlings, open the main door 121 at the top of the top cover 120, put the required frozen soil material and feed into the feeding trough 310, and then press the button 341 on the top of the outer shell 340 to make the motor 322 run. The motor 322 drives the main gear 321 to rotate, and the main gear 321 drives the driven gear 331 to rotate, thereby driving the main spiral 320 and the auxiliary spiral 330 to rotate. At the same time, because of the staggered spiral direction of the main spiral 320 and the auxiliary spiral 330, the put-in materials and feed can be effectively crushed and mixed.
[0045] 2: After the crushing work is completed, lift the disassembly crushing component 300 upwards, open the side door 111 on the side wall of the protective chamber 110, and pull out the partition 440 to let the crushed frozen soil material and feed fall into the breeding bed 400. Then, turn on the heating tube 220 and heating wire 210 through the control panel 201, and heat the temperature between 20 degrees Celsius and 30 degrees Celsius to facilitate the growth and subsequent reproduction of earthworm seedlings. Then, put the earthworm seedlings into the breeding bed 400 and close the main door 121 and the side door 111.
[0046] 3: During earthworm seedling cultivation, external air enters the protective chamber 110 through the outer sleeve 140 and inner sleeve 150. Subsequently, the airflow is diffused downwards by the guide plate 130 to prevent the airflow from directly impacting the top cover 120 and causing condensation. The insulation plate 113 on the side wall of the protective chamber 110 also provides insulation for the interior of the protective chamber 110, facilitating ventilation inside the protective chamber 110 while providing a suitable growth environment for the earthworm seedlings.
[0047] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. An earthworm seedling cultivation device, characterized in that, The system includes a ventilation assembly (100), which includes a protective chamber (110). An outer sleeve (140) and an inner sleeve (150) pass through the bottom of the inner cavity of the protective chamber (110). A cultivation chamber (200) is fixedly connected to the bottom of the inner cavity of the protective chamber (110) by bolts. A heating pipe (220) is fixedly connected to the bottom of the inner cavity of the cultivation chamber (200) by a buckle. A breeding bed (400) is provided inside the cultivation chamber (200). A sliding groove is provided on the side wall of the breeding bed (400). A partition (440) is slidably connected inside the sliding groove. A crushing assembly (300) is provided on the top of the breeding bed (400). The crushing assembly (300) includes a main spiral (320) and a secondary spiral (330).
2. The earthworm seedling cultivation equipment according to claim 1, characterized in that, The bottom of the protective chamber (110) is fixedly connected to a base (112) by screws. The side wall of the protective chamber (110) is rotatably connected to a side door (111) by hinges. Multiple insulation boards (113) are glued to the side wall of the protective chamber (110). The top of the protective chamber (110) is fixedly connected to a top cover (120) by screws. The top of the top cover (120) is rotatably connected to a main door (121) by hinges. The top of the outer sleeve (140) and the inner sleeve (150) are welded with a guide plate (130).
3. The earthworm seedling cultivation equipment according to claim 1, characterized in that, The sidewall of the culture chamber (200) is fixedly connected with multiple heating wires (210) by screws. The sidewall of the heating wires (210) is fixedly connected with baffles (211) by screws. The top of the heating tube (220) is covered with a support plate (221). The sidewall of the culture chamber (200) is provided with a control panel (201) that electrically connects the heating tube (220) and the heating wires (210). The inner sidewall of the culture chamber (200) is provided with multiple mounting slots (202).
4. The earthworm seedling cultivation equipment according to claim 3, characterized in that, The crushing assembly (300) includes a feed trough (310), the bottom of which is integrally formed with multiple inserts (311). The main spiral (320) is inserted into the side wall of the feed trough (310). A main gear (321) is welded to the side wall of the main spiral (320). A motor (322) is inserted into the side wall of the main gear (321). A driven gear (331) meshes with the outer circumference of the main gear (321). The secondary spiral (330) is welded to the side wall of the driven gear (331). A housing (340) is fixedly connected to the side wall of the feed trough (310) by screws. A button (341) electrically connected to the motor (322) is provided on the top of the housing (340).
5. The earthworm seedling cultivation equipment according to claim 4, characterized in that, The top of the breeding bed (400) is provided with a plurality of slots (401) that match the shape and size of the insert (311) at the corresponding position. The side wall of the breeding bed (400) is integrally formed with an installation block that matches the shape and size of the installation groove (202). The bottom of the breeding bed (400) is provided with a plurality of drainage outlets on both sides. A filter plate (410) is placed at the bottom of the inner cavity of the breeding bed (400). The top of the filter plate (410) is covered with a filter cloth (420). A water collection trough (430) is slidably connected to the bottom of the drainage outlet.
6. The earthworm seedling cultivation equipment according to claim 3, characterized in that, The outer sleeve (140) has multiple circular holes on its outer circumference, and the inner sleeve (150) has multiple circular through holes that are staggered with the circular holes on its outer circumference.
7. The earthworm seedling cultivation equipment according to claim 4, characterized in that, The feed trough (310) includes an inclined plate with an inclination angle of 60 degrees, and the main helix (320) and the secondary helix (330) have opposite thread directions.