A small shrub rain control device
By designing a small shrub rain control device, the problem of poor rain control effect in the existing technology was solved, the accuracy of shrub sap flow testing and the rigor of experimental design were achieved, and the requirements of structural strength and water-proof effect were met.
Patent Information
- Application Number
- CN202521149758.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-06-06
AI Technical Summary
Existing technologies lack dedicated shrub rain control devices, resulting in poor rain control effects, unsatisfactory institutional stability and soil water impermeability, which affects the accuracy and rigor of shrub sap flow testing.
A small shrub rain control device was designed, including a water-blocking panel and a waterproof cover. The modular structure enables height adjustment and area control, ensuring water-proofing effect at the shrub roots. The height of the waterproof cover and the position of the rain-blocking panel can be adjusted to meet different experimental needs.
It improves the accuracy of shrub sap flow testing and the rigor of experimental design, meets the requirements of structural strength and waterproofing for outdoor use, and is adaptable to different experimental conditions.
Smart Images

Figure CN224682203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shrub sap flow testing technology, specifically a small shrub rain control device. Background Technology
[0002] Shrub sap flow testing is a key technology that monitors the dynamic process of water transport within plant stems to reveal plant water use strategies, physiological functions, and environmental responses. Its core objective is to quantify plant water transport efficiency, assess the impact of environmental stresses, and provide a scientific basis for eco-hydrological processes. Rain control is necessary in a natural environment during sap flow testing to ensure the rigor of the experimental design, data accuracy, and isolation from environmental variables. However, current rain control technologies primarily use simple sheds without dedicated devices, resulting in limited stability, functionality, and effectiveness. Furthermore, the effectiveness of water impermeability beneath the soil is a significant challenge. Therefore, we propose a small-scale shrub rain control device. Utility Model Content
[0003] The purpose of this invention is to provide a small shrub rain control device to solve the problems mentioned in the background art.
[0004] A small shrub rain control device includes a water-blocking panel and a waterproof cover. The water-blocking panel includes four square-connected water-blocking plates, and a first connecting rod is installed at the connection of the four water-blocking plates.
[0005] The waterproof cover includes four vertically arranged support rods in a matrix. Each support rod includes a second connecting rod at its lower end. A blind hole with an upper opening is provided within the second connecting rod, into which a fourth connecting rod is inserted. The fourth connecting rod can slide up and down within the blind hole. Several second positioning holes are provided on the fourth connecting rod from top to bottom. A second positioning screw is provided on the upper side of the second connecting rod, passing through the second connecting rod and screwed into the second positioning hole, thus fixing the fourth connecting rod in the blind hole. A third connecting rod is installed at the upper end of the fourth connecting rod, and a positioning insert is installed at the lower end of the second connecting rod. The positioning insert is detachably connected to the upper end of the first connecting rod. A waterproof plastic sheet is surrounding the four vertically arranged support rods in a matrix. The waterproof plastic sheet is adhered to the second and third connecting rods of the support rods, but not connected to the fourth connecting rod. A square frame is installed at the upper end of the four support rods, and a rain shield is slidably installed at the upper end of the square frame.
[0006] Preferably, the upper surface of the two rods arranged in the left-right direction of the square frame is provided with a sliding groove, and the lower end of the rain shield is provided with two sliders. The sliders are slidably connected in the sliding groove, and the rain shield slides on the square frame through the sliders. The sliders and the rain shield are provided with threaded through holes that are connected vertically. Locking bolts are screwed into the threaded through holes from top to bottom. After tightening the locking bolts, the sliders, the rain shield and the square frame are connected and fixed.
[0007] Preferably, the upper end of the first connecting rod is provided with a first positioning hole, the positioning rod is inserted into the first positioning hole, and the upper side of the first connecting rod is provided with a first positioning screw. The first positioning screw passes through the first connecting rod and is screwed into the positioning rod in the first positioning hole, thereby fixing the positioning rod in the first positioning hole by the first positioning screw.
[0008] Preferably, the lower end of the first connecting rod is provided with a pin, which makes the water-blocking plate more stable and secure.
[0009] Preferably, the four first connecting rods are arranged in pairs at different heights, making the entire waterproof cover trapezoidal, with the upper surface being inclined, and both sliding grooves being inclined, which facilitates the diversion of rainwater on the rain shield when it rains.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] When conducting sap flow tests on shrubs, a water-retaining enclosure is placed under the shrubs, with the lower half of the enclosure inserted below the soil and the upper half above the soil to ensure effective water control at the shrub roots. A waterproof cover is then attached above the water-retaining enclosure. The height of the fourth connecting rod can be adjusted according to the height of the shrubs, thereby adjusting the height of the waterproof cover for testing purposes. During testing, the position of the rain shield above the square frame can be slidably adjusted as needed to control rain over different areas, meeting experimental requirements.
[0012] This utility model meets the needs of shrub sap flow testing through a modular structure. It has high structural strength, meets the needs of outdoor use, and can achieve height adjustment, as well as good water and rain protection effects, making it highly practical. Attached Figure Description
[0013] Figure 1 This is a perspective view of the present invention;
[0014] Figure 2 This is a cross-sectional view of the connection between the second connecting rod and the fourth connecting rod of this utility model;
[0015] Figure 3 This is a cross-sectional view of the connection between the first connecting rod and the positioning rod of this utility model.
[0016] Figure 4 This is a structural cross-sectional view of the connection between the square frame and the rain shield of this utility model.
[0017] In the diagram: 1. Water barrier, 11. First connecting rod, 111. First positioning hole, 12. Water barrier plate, 13. Insert pin, 14. First positioning screw, 2. Waterproof cover, 21. Support rod, 211. Second connecting rod, 212. Third connecting rod, 213. Fourth connecting rod, 214. Second positioning hole, 215. Blind hole, 216. Second positioning screw, 217. Positioning insert rod, 22. Waterproof plastic sheet, 3. Square frame, 301. Slide groove, 4. Rainproof plate, 41. Slider, 401. Threaded through hole, 5. Locking bolt. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] See Figure 1-4 A small shrub rain control device includes a water-blocking enclosure 1 and a waterproof cover 2. The water-blocking enclosure 1 includes four square-connected water-blocking plates 12. A first connecting rod 11 is installed at the connection of the four water-blocking plates 12. The lower end of the first connecting rod 11 is provided with a nail 13, which makes the water-blocking enclosure 1 more stable and secure. When conducting shrub sap flow tests, the water-blocking enclosure 1 is placed under the shrub, with the lower half of the water-blocking enclosure 1 inserted below the soil and the upper half of the water-blocking enclosure 1 above the soil, ensuring the water-blocking effect at the roots of the shrub.
[0020] The waterproof cover 2 includes four vertically arranged support rods 21 in a matrix. Each support rod 21 includes a second connecting rod 211 at its lower end. A blind hole 215 with an upper opening is provided in the second connecting rod 211. A fourth connecting rod 213 is inserted into the blind hole 215 and can slide up and down within the blind hole 215. The fourth connecting rod 213 has several second positioning holes 214 from top to bottom. A second positioning screw 216 is provided on the upper side of the second connecting rod 211. The second positioning screw 216 passes through the second connecting rod 211 and is screwed into the second positioning hole 214, thus fixing the fourth connecting rod 213 to the blind hole. Within 215, the height of the fourth connecting rod 213 can be adjusted according to the height of the shrub, thereby adjusting the height of the waterproof cover 2 for testing purposes. A third connecting rod 212 is installed at the upper end of the fourth connecting rod 213, and a positioning insert 217 is installed at the lower end of the second connecting rod 211. The positioning insert 217 is detachably connected to the upper end of the first connecting rod 11. A first positioning hole 111 is provided at the upper end of the first connecting rod 11, and the positioning insert 217 is inserted into the first positioning hole 111. A first positioning screw 14 is provided on the upper side of the first connecting rod 11, and the first positioning screw 14 passes through the first connecting rod 11 and is screwed into the positioning hole 111. Inside the insertion rod 217, the positioning insertion rod 217 is fixed in the first positioning hole 111 by the first positioning screw 14; the four support rods 21 arranged in a matrix vertically are surrounded by a waterproof plastic sheet 22, which is adhered to the second connecting rod 211 and the third connecting rod 212 of the support rods 21, but not connected to the fourth connecting rod 213; a square frame 3 is installed on the upper end of the four support rods 21, and a rain shield 4 is slidably arranged on the upper end of the square frame 3. The upper surface of the two rods arranged in the left and right directions of the square frame 3 is provided with a sliding groove 301, and the lower end of the rain shield 4 is provided with two sliders 41, which are slidably connected to the sliding groove 301. Within the groove 301, the slide block 41 drives the rain shield 4 to slide on the square frame 3. The slide block 41 and the rain shield 4 have threaded through holes 401 that are connected vertically. Locking bolts 5 are screwed into the threaded through holes 401 from top to bottom. After tightening the locking bolts 5, the slide block 41, the rain shield 4 and the square frame 3 are connected and fixed. During testing, the position of the rain shield 4 above the square frame 3 can be adjusted as needed to control rain over different areas and meet experimental requirements. The four first connecting rods 11 are distributed in pairs at different heights, making the entire waterproof cover 2 trapezoidal with an inclined upper surface. Both grooves 301 are inclined to facilitate the drainage of rainwater on the rain shield 4 when it rains.
[0021] Working principle: When conducting sap flow tests on shrubs, a water-blocking enclosure 1 is placed under the shrubs, with the lower half of the enclosure 1 inserted below the soil and the upper half above the soil to ensure water-blocking effect at the shrub roots. A waterproof cover 2 is then connected above the water-blocking enclosure 1. The height of the fourth connecting rod 213 is adjusted according to the height of the shrubs to adjust the height of the waterproof cover 2 for testing purposes. During testing, the position of the rain shield 4 above the square frame 3 can be slidably adjusted as needed to control rain over different areas.
[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A small shrub rain control device, comprising a water-blocking enclosure (1) and a waterproof cover (2), characterized in that: The water-blocking panel (1) includes four square-connected water-blocking panels (12), and a first connecting rod (11) is installed at the connection of the four water-blocking panels (12). The waterproof cover (2) includes four vertically arranged support rods (21). Each support rod (21) includes a second connecting rod (211) at its lower end. The second connecting rod (211) has a blind hole (215) with an opening at its upper end. A fourth connecting rod (213) is inserted into the blind hole (215). The fourth connecting rod (213) has several second positioning holes (214) from top to bottom. A second positioning screw (216) is provided on the upper side of the second connecting rod (211). The second positioning screw (216) passes through the second connecting rod (211) and is screwed into the second positioning hole (214). The upper end of the fourth connecting rod (213) is equipped with a third connecting rod (212), and the lower end of the second connecting rod (211) is equipped with a positioning rod (217). The positioning rod (217) is detachably connected to the upper end of the first connecting rod (11). The four support rods (21) arranged vertically in a matrix are surrounded by a waterproof plastic sheet (22). The waterproof plastic sheet (22) is bonded to the second connecting rod (211) and the third connecting rod (212) of the support rod (21). The upper end of the four support rods (21) is equipped with a square frame (3), and the upper end of the square frame (3) is slidably equipped with a rain shield (4).
2. The small shrub rain control device according to claim 1, characterized in that: The upper surface of the two rods of the square frame (3) arranged in the left and right direction is provided with a sliding groove (301). The lower end of the rain shield (4) is provided with two sliders (41). The sliders (41) are slidably connected in the sliding groove (301). The sliders (41) and the rain shield (4) are provided with threaded through holes (401) that are connected vertically. Locking bolts (5) are screwed into the threaded through holes (401) from top to bottom.
3. A small shrub rain control device according to claim 1, characterized in that: The first connecting rod (11) has a first positioning hole (111) at its upper end. The positioning rod (217) is inserted into the first positioning hole (111). The upper side of the first connecting rod (11) is provided with a first positioning screw (14). The first positioning screw (14) passes through the first connecting rod (11) and is screwed into the positioning rod (217) in the first positioning hole (111).
4. A small shrub rain control device according to claim 1, characterized in that: The lower end of the first connecting rod (11) is provided with a pin (13).
5. A small shrub rain control device according to claim 1, characterized in that: The four first connecting rods (11) are arranged in pairs at different heights.