Agricultural greenhouse planting spraying device

By using quick-connect couplings and a sealing design, the problems of inconvenient spray angle adjustment, small spray range, and poor sealing of the spray device have been solved, enabling efficient, stable, and rapid watering operations in crop greenhouses, thus improving the crop growth environment and water resource utilization efficiency.

CN224386339UActive Publication Date: 2026-06-23SHANXI ROAD & BRIDGE CONSTR GRP LANDSCAPING ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI ROAD & BRIDGE CONSTR GRP LANDSCAPING ENG CO LTD
Filing Date
2025-07-29
Publication Date
2026-06-23

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Abstract

The utility model provides a kind of crop greenhouse planting sprinkler, including being set in the main water pipe being connected with outside water source in greenhouse, multiple drain outlets are set on the lateral wall of main water pipe, one water spraying assembly is set on each drain outlet, water spraying assembly includes the quick-change connector of main water pipe outside side being clamped on drain outlet, the lower part of quick-change connector is provided with spray head, the utility model can be connected with multiple spray heads set on main water pipe and realize the comprehensive efficient watering of crop in greenhouse, and quick-change connector can be used to realize the quick disassembly and assembly operation of spray head, operation is more convenient and efficient.
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Description

Technical Field

[0001] This utility model relates to the field of spray equipment technology, specifically to a spray device for greenhouse crop cultivation. Background Technology

[0002] Crops are various plants cultivated in agriculture, including two main categories: food crops and cash crops (oil crops, vegetable crops, flowers, grasses, and trees). "Food is the first necessity of man," which expresses the relationship between humans and food. A reasonable diet is essential for human health. The growth of crops is inseparable from scientific and technological production techniques, as well as new industrial machinery and equipment that can assist agricultural production. When growing crops in greenhouses, sprinkler systems are needed to irrigate them. However, the existing sprinkler systems have a relatively simple structure, cannot adjust the spray angle of the nozzles according to usage needs, have a small spray range, and are not very practical.

[0003] For example, Chinese Patent Publication No. CN211185160U discloses a multi-functional sprinkler device for greenhouse cultivation of crops. Its basic description is as follows: This utility model starts a second motor through a control panel, the second motor drives a second rotating shaft to rotate, the second rotating shaft drives a second rotating rod to rotate, the second rotating rod drives a diverter pipe to rotate, and the diverter pipe drives the nozzle to rotate, thereby facilitating the adjustment of the nozzle angle and making it convenient for spraying. However, this utility model adjusts the spray angle of the nozzle by directly driving the rotating shaft to rotate through the motor, and then the rotating shaft drives the nozzle to swing. Although it achieves the adjustment of the nozzle spray angle, the motor needs to be positioned for forward and reverse rotation. After long-term use, the motor is prone to damage, affecting the normal use of the sprinkler device.

[0004] Traditional irrigation methods have many shortcomings. While some existing automatic irrigation devices can achieve a certain degree of automation, the installation and replacement of nozzles are inconvenient. If a nozzle malfunctions or needs to be replaced with a different type depending on the crop's growth stage, the operation is cumbersome, affecting irrigation efficiency and the normal growth of crops. Furthermore, some irrigation devices have poor sealing at the connection points, easily leading to leaks, wasting water resources, and potentially impacting the greenhouse environment and crop growth. Utility Model Content

[0005] In view of this, the present invention provides a spraying device for crop greenhouse cultivation, which can achieve quick disassembly and replacement of the spray head through the spraying assembly and quick-change connector. It solves the problems of low watering efficiency, inconvenient installation and replacement of spray heads, and poor sealing of connection parts in the existing greenhouse watering methods. It can achieve comprehensive and efficient watering of crops in the greenhouse, while facilitating quick disassembly and assembly of the spray head, improving the convenience and stability of watering operations.

[0006] To solve the above-mentioned technical problems, this utility model provides a sprinkler system for crop greenhouse cultivation, including a main water pipe installed inside the greenhouse and connected to an external water source. Multiple drain outlets are provided on the side wall of the main water pipe, and each drain outlet is equipped with a spraying assembly. The spraying assembly includes a quick-connect fitting attached to the outside of the main water pipe at the drain outlet, and a nozzle is provided at the lower part of the quick-connect fitting. This utility model can achieve comprehensive and efficient watering of crops inside the greenhouse through multiple nozzles connected to the main water pipe. Furthermore, the quick-connect fitting allows for rapid disassembly and assembly of the nozzles, making operation more convenient and efficient.

[0007] The quick-connect coupling includes a retainer that mates with the water inlet pipe. A buckle is rotatably mounted on the retainer, and a locking element is provided at the other end of the buckle. This invention can lock and fix the buckle mounted on the outside of the water inlet pipe through the locking element, which greatly improves the stability of the quick-connect coupling installation.

[0008] The locking component includes a mounting plate mounted on the card seat, a telescopic sleeve rod on the upper part of the mounting plate, and a hook plate on the upper part of the telescopic sleeve rod. The hook plate is adapted to the buckle. This utility model can realize the installation of nozzles on main water pipes of different diameters by fastening the hook plate to the buckle, in conjunction with the length adjustment function of the telescopic sleeve rod, making the operation more convenient.

[0009] The telescopic sleeve includes a fixed cylinder with a spring inside. A pull rod is located on the upper part of the spring, and a hook plate is located on the upper part of the pull rod. This invention allows for convenient and quick adjustment of the height of the hook plate on the upper part of the pull rod by pulling the spring with the pull rod. This facilitates the locking and fixing of the hook plate to the buckle, greatly increasing the stability of the nozzle installation.

[0010] A sealing ring is provided between the nozzle and the quick-change connector. This invention can increase the tightness of the connection between the nozzle and the quick-change connector through the sealing ring.

[0011] A sealing ring is provided between the upper part of the quick-connect coupling and the drain outlet. This utility model can increase the tightness between the quick-connect coupling and the drain outlet through the sealing ring.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. Highly efficient and comprehensive watering: This utility model can simultaneously water a large area of ​​crops in the greenhouse through multiple nozzles connected to external water sources distributed on the main water pipe. Compared with traditional manual watering or some automatic watering devices, it greatly improves watering efficiency, ensures that crops can obtain water in a timely and even manner, which is conducive to the healthy growth of crops and improves crop yield and quality.

[0014] 2. Quick Sprinkler Head Replacement: This invention utilizes a quick-change connector design, allowing for rapid disassembly and assembly of the sprinkler head via the locking mechanism. When the sprinkler head becomes clogged, damaged, or requires replacement with a different type depending on the crop's growth stage, no complicated tools or cumbersome operations are needed. Replacement can be completed quickly, minimizing disruption to irrigation operations and improving work efficiency.

[0015] 3. High Installation Stability: The quick-connect coupling in this invention, through the cooperation of the card seat, buckle, and locking component, can be firmly installed on the drain outlet of the main water pipe. In particular, the design of the telescopic sleeve and hook plate in the locking component not only adapts to main water pipes of different diameters, but also, by adjusting the length of the telescopic sleeve, ensures that the hook plate tightly engages with the buckle, further enhancing the installation stability of the quick-connect coupling and preventing the nozzle from shaking or falling off during watering, thus ensuring the normal operation of watering.

[0016] 4. Excellent Sealing: This invention effectively solves the problem of water leakage at the connection points through the sealing rings between the nozzle and the quick-connect fitting, and between the quick-connect fitting and the drain outlet. This excellent sealing not only avoids water waste and reduces production costs, but also helps maintain a clean environment inside the greenhouse, preventing excessive humidity caused by leaks and thus preventing pests and diseases, creating a favorable environment for crop growth. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the structure of the spray device for greenhouse crop cultivation according to this utility model;

[0018] Fig. 2 This is an exploded view of the spraying device for greenhouse crop cultivation according to this utility model;

[0019] Fig. 3 This is a front view of the spray device for greenhouse crop cultivation according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 100, main water pipe; 101, drain outlet; 200, water spray assembly; 210, quick-connect coupling; 211, bracket; 212, buckle; 220, locking element; 221, mounting plate; 222, telescopic sleeve; 223, hook plate; 230, nozzle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figs. 1-3The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0022] like Figs. 1-3 As shown: This embodiment provides a sprinkler system for crop greenhouse cultivation, including a main water pipe 100 installed inside the greenhouse and connected to an external water source, such as a well. A submersible pump is built-in, and its outlet is connected to the inlet of the main water pipe 100 via a flexible hose. The main water pipe 100 is made of durable PVC (polyvinyl chloride) material, which has advantages such as strong corrosion resistance, low cost, light weight, and easy installation. It can adapt to the greenhouse environment, is not easily damaged during long-term use, and ensures a stable water supply. Multiple drain outlets 101 are provided on the side wall of the main water pipe 100, and each drain outlet 101 is equipped with a spray assembly 200. The spray assembly 200 includes a quick-connect fitting 210 clipped onto the outside of the main water pipe 100 at the drain outlet 101. A nozzle 230 is provided at the lower part of the quick-connect fitting 210. The nozzle 230 can be selected from different materials and types according to the crop type and irrigation needs. Generally, for conventional crops, atomizing nozzles 230 or rotary nozzles 230 made of plastic can be used. Plastic nozzles 230 are low in cost and have a certain degree of corrosion resistance. If higher wear resistance is required for the nozzles 230, metal nozzles 230, such as copper or stainless steel nozzles 230, can be used. This invention can achieve comprehensive and efficient watering of crops in the greenhouse through multiple nozzles 230 connected to the main water pipe 100. Moreover, the quick-connect couplings 210 can be used to quickly disassemble and assemble the nozzles 230, making operation more convenient and efficient.

[0023] According to one embodiment of the present invention, such as Figs. 1-3As shown, the quick-connect coupling 210 includes a retainer 211 that mates with the inlet pipe. A buckle 212 is rotatably mounted on the retainer 211, and a locking element 220 is provided at the other end of the buckle 212. The locking element 220 includes a mounting plate 221 mounted on the retainer 211. A telescopic sleeve 222 is provided on the upper part of the mounting plate 221, and a hook plate 223 is provided on the upper part of the telescopic sleeve 222. The hook plate 223 is adapted to the buckle 212. This invention allows for the installation of nozzles 230 on main water pipes 100 of different diameters by fastening the hook plate 223 onto the buckle 212, combined with the length adjustment function of the telescopic sleeve 222. This makes the operation more convenient. The retainer 211, buckle 212, and mounting plate 221 are made of high-strength engineering plastics, such as ABS (acrylonitrile-butadiene-... The styrene copolymer possesses excellent strength and toughness, ensuring the structural stability of the quick-connect coupling 210 while reducing overall weight for easier installation and operation. Furthermore, the engineering plastic material exhibits corrosion resistance, preventing rust or corrosion in humid greenhouse environments. This invention utilizes the locking element 220 to secure the buckle 212 on the outside of the water inlet pipe, significantly enhancing the installation stability of the quick-connect coupling 210.

[0024] According to another embodiment of the present invention, such as Fig. 1 and Fig. 2 As shown, the telescopic sleeve 222 includes a fixed cylinder made of metal, such as aluminum alloy, which has high strength and good wear resistance, ensuring that it will not deform during multiple adjustments. A spring is installed inside the fixed cylinder, and a pull rod is installed above the spring. The pull rod is made of stainless steel, ensuring both strength and rust resistance, ensuring long-term use in the humid environment of the greenhouse. The spring is made of high-quality spring steel, which has good elasticity and fatigue life, ensuring that the spring can work normally during the stretching and resetting process of the pull rod. The lower part of the hook plate 223 is located at the upper part of the pull rod. This invention allows for convenient and quick adjustment of the height of the hook plate 223 at the upper part of the pull rod by pulling the spring with the pull rod, facilitating the locking and fixing of the hook plate 223 to the buckle 212, greatly increasing the stability of the nozzle 230 installation.

[0025] According to another embodiment of the present invention, such as Fig. 1 and Fig. 3 As shown, a sealing ring is provided between the nozzle 230 and the quick-change connector 210. This utility model can increase the tightness of the connection between the nozzle 230 and the quick-change connector 210 through the sealing ring.

[0026] A sealing ring is provided between the upper part of the quick-connect coupling 210 and the drain outlet 101. Both the sealing ring and the sealing ring are made of rubber, such as nitrile rubber, which has good sealing performance and water resistance. It can effectively prevent water leakage at the connection and ensure the normal operation of the device. This utility model can increase the tightness between the quick-connect coupling 210 and the drain outlet 101 through the sealing ring.

[0027] How to use this utility model:

[0028] First, it needs to be clarified that the water spraying device involved in this utility model is mainly used for automatic watering of various greenhouse crops. This utility model takes the glue for greenhouse vegetables as an example to illustrate its usage method in detail:

[0029] Installation steps:

[0030] First, the main water pipe 100 is installed reasonably according to the layout of the greenhouse and the crop planting area to ensure that the main water pipe 100 is reliably connected to the external water source and that the positions of each drain outlet 101 are accurate, so as to facilitate the subsequent installation of quick-connect couplings 210 and nozzles 230.

[0031] When installing the quick-connect coupling 210, place the retainer 211 on the outside of the drain outlet 101 of the main water pipe 100, ensuring that the retainer 211 fits tightly against the drain outlet 101. Then rotate the buckle 212 to lock it onto the main water pipe 100, and adjust the position of the buckle 212.

[0032] Next, adjust the length of the telescopic sleeve 222. Pull the lever upward to stretch the spring inside the fixed cylinder, raising the hook plate 223 to a suitable height so that the hook plate 223 can be aligned with the buckle 212. Then, fasten the hook plate 223 onto the buckle 212, release the lever, and the spring returns to its original position, so that the hook plate 223 tightly fastens the buckle 212, thereby completing the installation of the quick-connect coupling 210. At this time, the quick-connect coupling 210 is stably installed on the drain outlet 101 of the main water pipe 100.

[0033] Finally, install the nozzle 230 at the lower part of the quick-connect connector 210. A sealing ring is pre-installed at the connection point between the nozzle 230 and the quick-connect connector 210. Align the nozzle 230 with the mounting interface of the quick-connect connector 210, and rotate or press the nozzle 230 to ensure a tight connection between the nozzle 230 and the quick-connect connector 210. The sealing ring provides a seal to prevent water leakage at the connection.

[0034] Working principle:

[0035] When external water is delivered to the greenhouse through the main water pipe 100, the water enters the quick-connect fitting 210 from the drain outlet 101 of the main water pipe 100, and then enters the sprinkler head 230 through the quick-connect fitting 210. Since the sprinkler head 230 is connected to multiple drain outlets 101, water is sprayed out from each sprinkler head 230 at the same time, realizing comprehensive watering of crops in the greenhouse.

[0036] If the sprinkler head 230 needs to be replaced or maintained during watering, simply pull the lever again to stretch the spring, causing the hook plate 223 to separate from the clip 212. Rotate the clip 212 to disengage it from the main water pipe 100, and then remove the quick-connect coupling 210 and the sprinkler head 230 from the main water pipe 100. After replacing the sprinkler head 230 or maintaining the original sprinkler head 230, reinstall it following the above installation steps.

[0037] Throughout the entire operation, the sealing ring and sealing ring maintain a tight connection to prevent water leakage between the nozzle 230 and the quick-connect coupling 210, and between the quick-connect coupling 210 and the drain outlet 101, ensuring that all water can be sprayed onto the crops through the nozzle 230, thereby improving the efficiency of water resource utilization.

[0038] How to use:

[0039] During the growth of crops in the greenhouse, the external water source is turned on regularly according to the water requirements of the crops, so that water can be used to irrigate the crops through the main water pipe 100 and the sprinkler head 230.

[0040] Regularly check the working condition of the sprinkler head 230, and observe whether it is clogged or damaged. If a problem is found with the sprinkler head 230, replace it promptly according to the sprinkler head 230 replacement steps described above to ensure watering effectiveness.

[0041] At the same time, regularly check whether the quick-connect coupling 210 is securely installed, and whether the sealing ring and sealing ring are aged or damaged. If any abnormalities are found, repair or replace the corresponding parts in a timely manner to ensure the normal operation of the device and good sealing performance.

[0042] This utility model enables the quick disassembly and replacement of the nozzle 230 through the water spray assembly 200 and quick-change connector 210, solving the problems of low watering efficiency, inconvenient installation and replacement of nozzle 230, and poor sealing of connection parts in existing greenhouse watering methods. It achieves comprehensive and efficient watering of crops in the greenhouse, while facilitating the quick disassembly and assembly of the nozzle 230, thus improving the convenience and stability of watering operations.

[0043] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A sprinkler system for greenhouse crop cultivation, comprising a main water pipe (100) installed inside the greenhouse and connected to an external water source, characterized in that: The main water pipe (100) has multiple drain outlets (101) on its side wall. Each drain outlet (101) is equipped with a water spray assembly (200). The water spray assembly (200) includes a quick-connect connector (210) that is clipped onto the outside of the main water pipe (100) on the drain outlet (101). A nozzle (230) is provided at the lower part of the quick-connect connector (210).

2. The crop greenhouse spraying device as described in claim 1, characterized in that: The quick-connect coupling (210) includes a retainer (211) that mates with the water inlet pipe. A buckle (212) is rotatably provided on the retainer (211), and a locking element (220) is provided at the other end of the buckle (212).

3. The crop greenhouse spraying device as described in claim 2, characterized in that: The locking component (220) includes a mounting plate (221) disposed on the card holder (211), a telescopic sleeve rod (222) is disposed on the upper part of the mounting plate (221), a hook plate (223) is disposed on the upper part of the telescopic sleeve rod (222), and the hook plate (223) is adapted to the buckle (212).

4. The crop greenhouse spraying device as described in claim 3, characterized in that: The telescopic sleeve (222) includes a fixed cylinder, inside which a spring is provided, and a pull rod is provided on the upper part of the spring. The lower part of the hook plate (223) is provided on the upper part of the pull rod.

5. The crop greenhouse spraying device as described in claim 4, characterized in that: A sealing ring is provided between the nozzle (230) and the quick-change connector (210).

6. The crop greenhouse spraying device as described in claim 5, characterized in that: A sealing ring is provided between the upper part of the quick-connect fitting (210) and the drain outlet (101).