A type of shading sleeve for white bamboo shoots
By designing a shading sleeve for white bamboo shoots that adapts to their growth pattern, the problem of unstable quality of white bamboo shoots in existing technologies has been solved, enabling high-quality, low-cost production of white bamboo shoots suitable for various terrains.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANNING ACAD OF FORESTRY
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-17
AI Technical Summary
Existing white bamboo shoot cultivation techniques are insufficient for large-scale, high-quality production, and existing shading methods have limited effectiveness, resulting in unstable quality of white bamboo shoots.
The white bamboo shoot shading sleeve consists of a shell and a reflective layer. The shell is a cone-shaped tube with the smaller diameter end facing upwards, with ventilation holes at the top and sides. It is made of aluminum foil composite reflective film and plastic material, and is designed as a cone to adapt to the growth shape of bamboo shoots, ensuring smooth airflow and uniform shading.
It improves the quality stability and survival rate of white bamboo shoots, reduces costs, minimizes the impact on the natural environment, simplifies operations, is suitable for sloping areas, and has a certain straightening effect.
Smart Images
Figure CN224504193U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of forestry cultivation equipment and relates to a shading sleeve for white bamboo shoots. Background Technology
[0002] White-bud bamboo shoots are a special type of bamboo shoot, valued for their pure white color and crisp, tender texture. However, their natural growth conditions are quite demanding, resulting in low yields. They are also greatly affected by factors such as climate and soil, and their formation requires strict avoidance of light to inhibit chlorophyll synthesis.
[0003] Existing bamboo shoot cultivation techniques mainly achieve shading through the following methods:
[0004] 1. Covering with black film (Reference 1: CN20181012345.6): Cover the bamboo shoot tips with black plastic film before they emerge from the soil to physically block the light;
[0005] 2. Shade net hanging method (Reference 2: Bamboo Research, No. 3, 2020): Shade nets are erected above the bamboo forest to reduce the overall light intensity;
[0006] 3. Soil covering method (Reference 3: JP 2019-056789): Cover the bamboo shoot with deep soil to block light but affect the shape of the bamboo shoot.
[0007] However, these technologies have limited effectiveness in cultivating white bamboo shoots, making it difficult to achieve large-scale, high-quality white bamboo shoot production. Utility Model Content
[0008] The purpose of this utility model is to address the aforementioned problems in the existing technology by providing a light-blocking sleeve for white bamboo shoots. The technical problem to be solved by this utility model is how to stabilize the quality of cultivated white bamboo shoots.
[0009] The purpose of this utility model can be achieved through the following technical solution: a light-shielding sleeve for white bamboo shoots, characterized in that it includes a shell and a reflective layer located on the outer surface of the shell, the shell is in the shape of a cone with the small diameter end facing upward, the top of the shell has a top ventilation hole, and the circumferential surface of the shell has side wall ventilation holes.
[0010] Furthermore, the shell is formed by longitudinally stacking several conical cylinders. Each longitudinally stacked cylinder is divided into a bottom cone, a top cone, and an intermediate cone located between the top and bottom cones. The intermediate cones are stacked longitudinally, with the lowest intermediate cone connected to the bottom cone and the top cone connected to the highest intermediate cone. The connection between adjacent cylinders is as follows: the outer diameter of the small diameter end of the lower cylinder is smaller than the inner diameter of the large diameter end of the upper cylinder. The inner wall of the large diameter end of the upper cylinder is uniformly provided with several convex ribs that are adapted to the outer wall surface of the large diameter end of the lower cylinder. The side wall ventilation holes are formed at the connection positions between adjacent cylinders.
[0011] Furthermore, the outer surface of the large-diameter end of the bottom cone has an annular positioning disc, and the lower surface of the positioning disc has several positioning pins.
[0012] Furthermore, both the small-diameter end outer wall of the intermediate cone and the bottom cone has a retaining ring.
[0013] Furthermore, the shading sleeve also includes an annular geotextile, with a bottom cone connected to the center hole of the geotextile via a positioning pin.
[0014] Furthermore, the casing is made of plastic.
[0015] When bamboo shoots first emerge from the soil, a special shading sleeve is used to cover the bamboo shoots above their growing area to inhibit chlorophyll synthesis. The light-shielding sleeve adopts a double-layer structure. The outer layer is an aluminum foil composite reflective film (reflectivity ≥95%), and the inner layer is plastic (light transmittance ≤0.05%). Its cone shape matches the growth pattern of bamboo shoots. The large diameter end of the bottom cone is 30cm, the outer diameter of the positioning plate is approximately 40cm, the total height of the light-shielding sleeve is 50cm, the small diameter end of the top cone is 10cm, and the outer diameter of the geotextile is approximately 60cm. The side wall ventilation holes are concealed. When the light-shielding sleeve is subjected to lateral airflow, the airflow enters the inner cavity of the light-shielding sleeve through the side wall ventilation holes, forming an airflow that flows towards the upper end of the light-shielding sleeve and exits through the top ventilation hole. This structure allows airflow to enter but does not allow rainwater, soil, or other impurities to enter. The airflow entering through the side wall ventilation holes and exiting through the top ventilation hole is relatively smooth, and rainwater accumulated on the inner wall of the light-shielding sleeve can be discharged outside through the side wall ventilation holes, thus cleaning the side wall ventilation holes.
[0016] Bamboo shoots have a short growth period before harvesting, and the shading sleeves can be reused for 3-5 years. Geotextiles can prevent the growth of weeds around the bamboo shoots, reduce soil nutrient diversion, maintain soil moisture, and also improve the ventilation effect around the shading sleeves.
[0017] With this setup, the CO2 concentration inside the shading sleeve can be maintained at ≤500ppm, and the temperature and humidity can be kept within a suitable range (temperature ≤28℃, humidity ≤75%).
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] 1. Improved uniformity of shading, low and stable light transmittance, reliable shading sleeve landing and not easy to tip over, less affected by the natural environment. Compared with traditional mulching and soil covering methods, it has almost no interference with the expansion of bamboo shoots. The cultivated white bamboo shoots are of high quality, stable quality and high survival rate. Soil covering and mulching operations are affected by uncertain factors such as ground conditions and the location of bamboo shoots. The shading, temperature and air circulation of bamboo shoots in different locations are significantly different, and the quality of bamboo shoots is very unstable.
[0020] 2. Cost reduction: The shading sleeves can be reused, reducing material costs; they are less affected by the geological environment of forest land and are suitable for slopes.
[0021] 3. Traditional methods do not straighten the shape of bamboo shoots. In this solution, the light-receiving position is fixed and the range is small, namely the top ventilation hole, which has a certain straightening effect on the bamboo shoots.
[0022] 4. Easy to operate: The shading sleeve is easy to install and has little impact on the bamboo forest ecosystem. Attached Figure Description
[0023] Figure 1 This is a structural diagram of the light-shielding sleeve in its grounded state.
[0024] Figure 2 This is a structural diagram showing the sunshade sleeve and geotextile separated.
[0025] Figure 3 This is a schematic diagram of the structure of the shading sleeve after the geotextile is removed.
[0026] Figure 4 yes Figure 3 Cross-sectional view.
[0027] Figure 5 It is a three-dimensional view of the middle cone.
[0028] In the diagram, 1. Bottom cone; 2. Top cone; 3. Middle cone; 4. Top ventilation hole; 5. Side wall ventilation hole; 6. Raised rib; 7. Positioning plate; 8. Positioning pin; 9. Limiting ring; 10. Geotextile. Detailed Implementation
[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0030] The cultivation method of white bamboo shoots includes the following steps: when the bamboo shoots have just emerged from the soil, a light-blocking sleeve is used to cover the area above the growth area of the shoot tip so that the bamboo shoots are in a light-blocking state before harvesting; the light-blocking sleeve includes a shell and a reflective layer on the outer surface of the shell, and the shell is a cone-shaped tube with the smaller diameter end facing upward.
[0031] like Figures 1 to 5 As shown, the shell has a top ventilation hole 4 at the top and side wall ventilation holes 5 on the circumferential surface. The shell is composed of several conical cylinders stacked longitudinally. Each of the longitudinally stacked cylinders is divided into a bottom cone 1, a top cone 2, and an intermediate cone 3 located between the top cone 2 and the bottom cone 1. The intermediate cones 3 are stacked longitudinally, with the lowest intermediate cone 3 connected to the bottom cone 1 and the top cone 2 connected to the highest intermediate cone 3. The connection between adjacent cylinders is as follows: the outer diameter of the small diameter end of the lower cylinder is smaller than the inner diameter of the large diameter end of the upper cylinder. The inner wall of the large diameter end of the upper cylinder is uniformly provided with several convex ribs 6 that are adapted to the outer wall surface of the large diameter end of the lower cylinder. Side wall ventilation holes 5 are formed at the connection positions between adjacent cylinders.
[0032] The outer surface of the large-diameter end of the bottom cone 1 has an annular positioning disc 7, and the lower surface of the positioning disc 7 has several positioning pins 8. These are used to fix the shell and geotextile to the ground, i.e., the positioning pins 8 are inserted into the soil.
[0033] Both the middle cone 3 and the bottom cone 1 have a limiting retaining ring 9 on the outer wall surface of their small-diameter ends. This is a snap-fit method that ensures that the adjacent cones cannot be easily separated after being interlocked.
[0034] The shading sleeve also includes an annular geotextile 10, with the bottom cone 1 connected to the center hole of the geotextile 10 by a positioning pin 8, and the shell is made of plastic.
[0035] When bamboo shoots first emerge from the soil, a special shading sleeve is used to cover the bamboo shoots above their growing area to inhibit chlorophyll synthesis. The light-shielding sleeve adopts a double-layer structure. The outer layer is an aluminum foil composite reflective film (reflectivity ≥95%), and the inner layer is plastic (transmittance ≤0.05%). It is shaped like a cone, matching the growth pattern of bamboo shoots. The large diameter of the bottom cone 1 is 30cm, the outer diameter of the positioning plate 7 is about 40cm, the total height of the light-shielding sleeve is 50cm, the small diameter of the top cone is 10cm, and the outer diameter of the geotextile 10 is about 60cm. The side wall ventilation holes 5 are hidden. When the light-shielding sleeve is subjected to lateral airflow, the airflow enters the inner cavity of the light-shielding sleeve through the side wall ventilation holes 5, forming an airflow that flows towards the upper end of the light-shielding sleeve and exits from the top ventilation hole 4. This is a structure that allows airflow to enter but does not allow rainwater, soil, or other impurities to enter. The airflow entering from the side wall ventilation holes 5 and exiting from the top ventilation hole 4 is relatively smooth, and the rainwater accumulated on the inner wall of the light-shielding sleeve can be discharged to the outside of the light-shielding sleeve through the side wall ventilation holes 5, which has the function of cleaning the side wall ventilation holes 5.
[0036] Bamboo shoots have a short growth period before harvesting, and the shading sleeves can be reused for 3-5 years. Geotextile 10 can prevent the growth of weeds around the bamboo shoots, reduce soil nutrient diversion, maintain soil moisture, and also improve the ventilation effect around the shading sleeves.
[0037] With this setup, the CO2 concentration inside the shading sleeve can be maintained at ≤500ppm, and the temperature and humidity can be kept within a suitable range (temperature ≤28℃, humidity ≤75%).
[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A white bamboo shoot light shielding sleeve, characterized in that, Includes a housing and a reflective layer on the outer surface of the housing. The housing is a cone-shaped structure with the small diameter end facing upwards. The top of the housing has a top ventilation hole (4), and the circumferential surface of the housing has side wall ventilation holes (5). The shell is formed by stacking several conical cylinders longitudinally. Each of the longitudinally stacked cylinders is divided into a bottom cone (1), a top cone (2), and an intermediate cone (3) located between the top cone (2) and the bottom cone (1). The intermediate cones (3) are stacked longitudinally, with the lowest intermediate cone (3) connected to the bottom cone (1) and the top cone (2) connected to the highest intermediate cone (3). The connection between adjacent cylinders is as follows: the outer diameter of the small diameter end of the lower cylinder is smaller than the inner diameter of the large diameter end of the upper cylinder. The inner wall of the large diameter end of the upper cylinder is uniformly provided with several convex ribs (6) that are adapted to the outer wall surface of the large diameter end of the lower cylinder. The side wall ventilation hole (5) is formed at the connection position between adjacent cylinders.
2. The white-bud bamboo shading sleeve according to claim 1, characterized in that, The outer side of the large diameter end of the bottom cone (1) has an annular positioning disk (7), and the lower surface of the positioning disk (7) has several positioning pins (8).
3. The white-bud bamboo shading sleeve according to claim 1, characterized in that, Both the small-diameter end outer wall of the middle cone (3) and the bottom cone (1) have a limiting retaining ring (9).
4. The white-bud bamboo shading sleeve according to claim 2, characterized in that, The shading sleeve also includes an annular geotextile (10), and the bottom cone (1) is connected to the center hole of the geotextile (10) by a positioning pin (8).
5. The white sprout light shielding sleeve according to any one of claims 1 to 4, wherein The casing is made of plastic.