Rainwater discharge device for greenhouse cultivation

By introducing a motor-driven screw and bevel gear system into the greenhouse rainwater drainage device, combined with an inclined filter plate and spring structure, impurities are automatically removed, solving the problem of easy filter clogging and improving drainage efficiency and ease of cleaning.

CN224404560UActive Publication Date: 2026-06-26SHANGHAI XUANTONG ENERGY TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI XUANTONG ENERGY TECH
Filing Date
2025-06-27
Publication Date
2026-06-26

Smart Images

  • Figure CN224404560U_ABST
    Figure CN224404560U_ABST
Patent Text Reader

Abstract

The utility model discloses a rainwater discharge device for greenhouse planting, including drain pipe, the top fixed mounting of drain pipe has grating, the right side fixed mounting of drain pipe has rectangle bin, the right side of drain pipe is provided with the discharge gate, the left side of rectangle bin is provided with the feeding port, the discharge gate of drain pipe with the feeding port of rectangle bin corresponds, the inside of drain pipe is inserted with filter plate, the inside of rectangle bin is inserted with second movable rod, the top of rectangle bin is installed with motor through support. The utility model discloses can filter the impurity in rainwater through filter plate, and the impurity after filtering enters the inside of rectangle bin along the inclined direction of filter plate, and the impurity in the inside of rectangle bin can be discharged through screw rod rotation, thereby realizes the effect of self -cleaning, and the practicality of the device is greatly improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of greenhouse drainage technology, and in particular to a rainwater drainage device for greenhouse planting. Background Technology

[0002] In greenhouse cultivation, to effectively collect and drain rainwater from the surface of greenhouse coverings (such as glass and plastic film) and prevent rainwater accumulation from collapsing the greenhouse structure or affecting the internal environment, rainwater drainage devices are typically installed in greenhouse gutters or at specific collection points. The core function of these devices is to direct the collected rainwater through drainage pipes to the outside of the greenhouse or a designated water collection system.

[0003] Common greenhouse rainwater drainage devices typically include an inlet, a section of drain pipe, and a filter component located in the piping system. The main function of this filter is to intercept impurities such as leaves, dead branches, mud, moss fragments, and insect carcasses washed down by rainwater, ensuring smooth drainage.

[0004] However, in practical applications, the existing technology has the following significant drawbacks: the filter screen is prone to clogging. When rainwater flows on the surface of the greenhouse, it inevitably washes away a large amount of dust, mud, algae spores, pollen, and small plant debris (such as moss and grass) that have fallen into the greenhouse or grown in the crevices. These impurities mix with the rainwater to form sewage containing a large number of solid particles, which are very easy to accumulate and clog when flowing through the filter screen. Once the filter screen is clogged, the drainage efficiency drops sharply or even fails completely, causing rainwater to be unable to drain in time and damaging the crop roots. In addition, the filter screen is often integrated inside the pipe or fixed in a hard-to-reach location. Cleaning requires disassembling part of the pipe structure or using special tools (such as long-handled brushes and high-pressure water guns), which is cumbersome, time-consuming and labor-intensive. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rainwater drainage device for greenhouse cultivation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rainwater drainage device for greenhouse cultivation includes a drainage pipe, a grating plate fixedly installed at the top of the drainage pipe, a rectangular bin fixedly installed on the right side of the drainage pipe, a discharge port on the right side of the drainage pipe, and a feed inlet on the left side of the rectangular bin. The discharge port of the drainage pipe corresponds to the feed inlet of the rectangular bin. A filter plate is inserted inside the drainage pipe. A second movable rod is inserted inside the rectangular bin. A motor is mounted on the top of the rectangular bin via a bracket, and the output end of the motor passes through the top of the rectangular bin and connects to the top of the second movable rod. A helical rod is fixedly sleeved on the surface of the second movable rod, and the outer wall of the helical rod abuts against the inner wall of the rectangular bin.

[0008] Preferably, guide rods are symmetrically fixedly installed at the four corners of the lower end of the filter plate, and support plates are fixedly installed at the positions corresponding to the four sets of guide rods on the inner wall of the drain pipe. The support plates have slots on their surface, and the lower ends of the guide rods are fixedly connected to the limiting blocks through the slots.

[0009] Preferably, a rectangular frame is fixedly connected to the lower end of the motor, and the lower end of the second movable rod passes through the rectangular frame and is connected to the bottom end through a bearing. A first bevel gear is fixedly sleeved on the surface of the second movable rod located inside the rectangular frame, and a second bevel gear meshes with the side wall of the first bevel gear. The first movable rod is fixedly connected at the center position of the second bevel gear, and the left side of the first movable rod passes through a drain pipe and is connected to the left inner wall through a bearing.

[0010] Preferably, a lever is fixedly sleeved on the center surface of the first movable rod, and both ends of the lever are semi-circular surfaces, with the length of the lever being greater than the distance between the first movable rod and the filter plate.

[0011] Preferably, a spring is sleeved on the surface of the guide rod, and the spring is located between the support plate and the filter plate. The lower end of the spring is fixedly connected to the support plate, and the upper end of the spring is fixedly connected to the lower end of the filter plate.

[0012] Preferably, the drain pipe has symmetrical outlets on both sides near the lower end, and the outlets are fixedly installed with outlet pipes inside.

[0013] Preferably, the top of the filter plate is tilted downwards from left to right.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The filter plate in this device can filter impurities in rainwater. The filtered impurities enter the rectangular chamber along the inclined direction of the filter plate. The impurities inside the rectangular chamber can be discharged by rotating the screw rod, thereby achieving a self-cleaning effect and greatly improving the practicality of the device.

[0016] In this device, the first bevel gear and the second bevel gear work together to achieve rotation. The second bevel gear drives the first movable rod to rotate, and the rotation of the first movable rod drives the actuating rod to rotate. When the actuating rod rotates, it strikes the surface of the filter plate, causing the filter plate to vibrate and preventing impurities from accumulating. This effectively prevents the filter holes on the surface of the filter plate from becoming clogged, further improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a rainwater drainage device for greenhouse planting proposed in this utility model.

[0018] Figure 2 for Figure 1 A three-dimensional cross-sectional diagram of the drainage pipe structure.

[0019] Figure 3 for Figure 1 A three-dimensional cross-sectional view of the drainage pipe structure from below.

[0020] Figure 4 for Figure 3 A magnified 3D schematic diagram of the structure at point A.

[0021] In the diagram: 1. Drain pipe; 2. Grating plate; 3. Rectangular bin; 4. Motor; 5. Rectangular frame; 6. Water outlet pipe; 7. Filter plate; 8. First movable rod; 9. Actuating rod; 10. First bevel gear; 11. Second bevel gear; 12. Helical rod; 13. Second movable rod; 14. Limiting block; 15. Guide rod; 16. Spring; 17. Support plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 A rainwater drainage device for greenhouse cultivation includes a drainage pipe 1, a grid plate 2 fixedly installed at the top of the drainage pipe 1, a rectangular bin 3 fixedly installed on the right side of the drainage pipe 1, a discharge port on the right side of the drainage pipe 1, and a feed port on the left side of the rectangular bin 3. The discharge port of the drainage pipe 1 corresponds to the feed port of the rectangular bin 3. A filter plate 7 is inserted inside the drainage pipe 1. A second movable rod 13 is inserted inside the rectangular bin 3. A motor 4 is installed at the top of the rectangular bin 3 via a bracket, and the output end of the motor 4 passes through the top of the rectangular bin 3 and connects to the top of the second movable rod 13. A spiral rod 12 is fixedly sleeved on the surface of the second movable rod 13, and the outer wall of the spiral rod 12 abuts against the inner wall of the rectangular bin 3.

[0024] Furthermore, refer to Figure 2It can be seen that guide rods 15 are symmetrically fixedly installed at the four corners of the lower end of the filter plate 7, and support plates 17 are fixedly installed at the positions corresponding to the four sets of guide rods 15 on the inner wall of the drain pipe 1. The surface of the support plate 17 is provided with holes and slots, and the lower end of the guide rods 15 is fixedly connected to the limiting block 14 through the holes and slots.

[0025] Furthermore, refer to Figure 1 and Figure 2 It can be seen that a rectangular frame 5 is fixedly connected to the lower end of the motor 4, and the lower end of the second movable rod 13 passes through the rectangular frame 5 and is connected to the bottom end through a bearing. A first bevel gear 10 is fixedly sleeved on the surface of the second movable rod 13 located inside the rectangular frame 5, and a second bevel gear 11 meshes with the side wall of the first bevel gear 10. A first movable rod 8 is fixedly connected at the center of the second bevel gear 11, and the left side of the first movable rod 8 passes through the drain pipe 1 and is connected to the left inner wall through a bearing. The first bevel gear 10 and the second bevel gear 11 work together to achieve the function of transmission.

[0026] Furthermore, refer to Figure 2 It can be seen that a toggle rod 9 is fixedly sleeved on the center surface of the first movable rod 8, and the two ends of the toggle rod 9 are semi-arc surfaces. The length of the toggle rod 9 is greater than the distance between the first movable rod 8 and the filter plate 7. During use, the toggle rod 9 rotates and taps the bottom of the filter plate 7, and the filter plate 7 moves up and down, which facilitates vibration and prevents impurities from adhering.

[0027] Furthermore, refer to Figure 3 and Figure 4 It can be seen that a spring 16 is sleeved on the surface of the guide rod 15, and the spring 16 is located between the support plate 17 and the filter plate 7. The lower end of the spring 16 is fixedly connected to the support plate 17, and the upper end of the spring 16 is fixedly connected to the lower end of the filter plate 7. There is a certain gap between the coils of the spring 16. When subjected to an external load, the spring 16 contracts and deforms, storing deformation energy. When the external force is released, the deformation of the unloaded spring 16 disappears and returns to its original shape, converting the deformation energy into mechanical work or kinetic energy. When used in conjunction with the toggle rod 9, the filter plate 7 bounces up and down, generating vibration.

[0028] Furthermore, refer to Figure 3 It can be seen that the left and right sides of the drain pipe 1 are symmetrically provided with water outlets near the lower end, and the water outlets are fixedly installed with water outlet pipes 6. During use, the rainwater inside the drain pipe 1 is discharged through the water outlet pipes 6.

[0029] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the top of the filter plate 7 is tilted from left to right and downward. During use, the tilt setting facilitates the guiding function and helps to discharge impurities.

[0030] Working principle: When using this utility model, according to the appendix Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 As shown, when the operator uses the device, rainwater enters the interior of the drain pipe 1 through the grating plate 2. The rainwater falling into the drain pipe 1 is filtered by the filter plate 7 to remove impurities mixed in with the rainwater. The filtered rainwater enters the bottom of the drain pipe 1 and is discharged through the outlet pipes 6 on both sides of the drain pipe 1.

[0031] During the rainwater filtration process, the motor 4 is powered on, and the output end of the motor 4 rotates, which drives the second movable rod 13 to rotate. The rotation of the second movable rod 13 drives the spiral rod 12 to rotate. At the same time, the rotation of the second movable rod 13 drives the first bevel gear 10 to rotate. The rotation of the first bevel gear 10 drives the second bevel gear 11 to rotate. The rotation of the second bevel gear 11 drives the first movable rod 8 to rotate. The rotation of the first movable rod 8 drives the actuating rod 9 to rotate. The actuating rod 9 rotates and contacts the lower end of the filter plate 7, realizing the knocking effect and preventing impurities from accumulating and clogging the filter plate 7.

[0032] Impurities enter the rectangular chamber 3 along the inclined direction of the filter plate 7. The spiral rod 12 rotates and can transport the impurities upward and discharge them from the discharge port opened on the right side of the rectangular chamber 3. The operation is completed. The above is the entire working principle of this utility model.

[0033] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0034] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A rainwater drainage device for greenhouse cultivation, comprising a drainage pipe (1), characterized in that, A grid plate (2) is fixedly installed at the top of the drain pipe (1). A rectangular bin (3) is fixedly installed on the right side of the drain pipe (1). A discharge port is opened on the right side of the drain pipe (1). A feed port is opened on the left side of the rectangular bin (3). The discharge port of the drain pipe (1) corresponds to the feed port of the rectangular bin (3). A filter plate (7) is inserted inside the drain pipe (1). A second movable rod (13) is inserted inside the rectangular bin (3). A motor (4) is installed at the top of the rectangular bin (3) through a bracket. The output end of the motor (4) passes through the top of the rectangular bin (3) and connects to the top of the second movable rod (13). A spiral rod (12) is fixedly sleeved on the surface of the second movable rod (13). The outer wall of the spiral rod (12) abuts against the inner wall of the rectangular bin (3).

2. The rainwater drainage device for greenhouse cultivation according to claim 1, characterized in that, Guide rods (15) are symmetrically fixedly installed at the four corners of the lower end of the filter plate (7). Support plates (17) are fixedly installed at the positions corresponding to the four sets of guide rods (15) on the inner wall of the drain pipe (1). The surface of the support plate (17) is provided with holes and grooves. The lower end of the guide rod (15) is fixedly connected to the limiting block (14) through the hole and groove.

3. The rainwater drainage device for greenhouse cultivation according to claim 1, characterized in that, The lower end of the motor (4) is fixedly connected to a rectangular frame (5), and the lower end of the second movable rod (13) passes through the rectangular frame (5) and is connected to the bottom end by a bearing. The surface of the second movable rod (13) located inside the rectangular frame (5) is fixedly fitted with a first bevel gear (10), and the side wall of the first bevel gear (10) is meshed with a second bevel gear (11). The center position of the second bevel gear (11) is fixedly connected to a first movable rod (8), and the left side of the first movable rod (8) passes through a drain pipe (1) and is connected to the left inner wall by a bearing.

4. A rainwater drainage device for greenhouse cultivation according to claim 3, characterized in that, A toggle rod (9) is fixedly sleeved on the center surface of the first movable rod (8), and the two ends of the toggle rod (9) are semi-arc surfaces. The length of the toggle rod (9) is greater than the distance between the first movable rod (8) and the filter plate (7).

5. A rainwater drainage device for greenhouse cultivation according to claim 2, characterized in that, A spring (16) is fitted on the surface of the guide rod (15), and the spring (16) is located between the support plate (17) and the filter plate (7). The lower end of the spring (16) is fixedly connected to the support plate (17), and the upper end of the spring (16) is fixedly connected to the lower end of the filter plate (7).

6. A rainwater drainage device for greenhouse cultivation according to claim 1, characterized in that, The drain pipe (1) has symmetrical outlets on both sides near the lower end, and the outlets are fixedly installed with outlet pipes (6).

7. A rainwater drainage device for greenhouse cultivation according to claim 1, characterized in that, The top of the filter plate (7) is tilted downward from left to right.