An agricultural irrigation pipeline connection component
By using a corrugated bendable pipe and a water-swellable rubber sealing ring, combined with threaded connections and tapered head supports, the leakage and adaptability issues of agricultural irrigation pipe connections are solved, achieving high sealing performance and flexible installation, suitable for complex terrain and different crop growth heights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU JIJU WATER CONSERVANCY TECHNOLOGY CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-26
AI Technical Summary
Existing agricultural irrigation pipeline connections are prone to leakage due to thermal expansion and contraction and vibration during long-term use. Furthermore, traditional flange connection methods are difficult to construct in complex terrains and cannot meet the growth height requirements of different crops.
By employing a corrugated, bendable pipe design and a water-swellable rubber sealing ring, combined with threaded connections and a tapered head support structure, the pipe achieves flexible connection and height adjustment, enhancing sealing performance and adaptability.
It effectively solves the leakage problem caused by thermal expansion and contraction and vibration, reduces construction difficulty, improves the sealing and adaptability of the pipeline, extends service life, reduces water waste, and adapts to the different growth height requirements of crops.
Smart Images

Figure CN224283791U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline connection component technology, and in particular to an agricultural water conservancy irrigation pipeline connection component. Background Technology
[0002] Agricultural irrigation is an indispensable part of agricultural production, involving the rational use and allocation of water resources to ensure crop growth and yield. With the continuous growth of the global population and the impact of climate change, the importance of agricultural irrigation is becoming increasingly prominent.
[0003] Agricultural irrigation is the process of providing water to crops artificially. In many regions, natural rainfall is insufficient to meet the needs of crop growth. For example, Chinese Patent Publication No. CN219300144U provides an agricultural irrigation pipe connection assembly, including a connecting seat and a connecting head. The connecting head is fixedly connected to the end of the irrigation pipe body. The connecting seat has connecting grooves at both ends, which respectively mate with the connecting heads of the irrigation pipe body on both sides. The connecting seat is generally cylindrical, with two sets of adjusting seats symmetrically arranged on its outer side. The connecting head has a limiting frame with a limiting groove. The adjusting seats have sleeves at both ends, and connecting rods are threaded into the sleeves, with the other end of the connecting rod engaging with the limiting groove. The connection assembly provided by this utility model mainly connects two pipe sections through the cooperation of the connecting seat and the connecting head. The connection is mainly through a threaded structure, allowing for flexible size adjustment, and the tapered connecting surface ensures a tight seal.
[0004] Currently, in agricultural irrigation, irrigation pipelines need to be laid to ensure the stability of the irrigation process. For long-term irrigation, durable and high-hardness metal pipelines are selected. Since metal pipelines are basically manufactured in sections, adjacent pipelines need to be connected during use. Conventional pipeline connections are mainly based on flange connections. However, flange connections are subject to thermal expansion and contraction during long-term use, which can cause leakage at the pipeline connection. Utility Model Content
[0005] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing an agricultural water conservancy irrigation pipeline connection component.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] Design an agricultural irrigation pipeline connection component, including a connector and a pipeline body. The connector has pipeline interfaces on both sides and a corrugated bendable pipe in the middle of the connector. The inside of the pipeline interface is inserted and connected to the surface of the pipeline body.
[0008] The surface of the pipe body is provided with an external thread, and the pipe interface of the connector is provided with an internal thread. The internal thread and the external thread are threaded together. The connector has an annular groove inside, and a sealing ring is embedded inside the annular groove. The sealing ring is made of water-swellable rubber material, and the inner side of the sealing ring is tightly wrapped against the surface of the pipe body.
[0009] In detail, the lower end of the connecting seat is fixed with a rod seat, a round rod is inserted into the inside of the rod seat, and a sleeve is fitted on the surface of the round rod. There are two sets of rod seats, which are respectively installed below the corresponding pipe interfaces.
[0010] In detail, the surface of the round rod is provided with an external thread II, and the inner side of the sleeve is provided with an internal thread II, and the external thread II and the internal thread II are threadedly connected to each other.
[0011] In detail, the lower end of the sleeve is fixed with a base, and a conical head is welded and fixed to the lower end of the base.
[0012] In detail, the upper end of the round rod is provided with a pin groove, and a retaining pin is slidably sleeved inside the pin groove. The end of the retaining pin has a curved surface structure.
[0013] In detail, a spring is provided inside the pin groove, and the two ends of the spring are fixedly assembled with the inner wall surface of the pin groove and the surface of the locking pin, respectively.
[0014] In detail, the surface of the rod seat is provided with a pin hole that penetrates through it, and the surface of the locking pin slides through the interior of the pin hole.
[0015] The design scheme proposed in this utility model has the following beneficial effects in application:
[0016] 1. This solution offers significant improvements in sealing performance and enhanced installation adaptability. The sealing ring, made of water-swellable rubber, automatically expands upon contact with water after pipe connection, creating a tighter interference fit. This effectively solves the leakage problem at the joints of traditional irrigation pipes caused by thermal expansion and contraction or vibration. The innovative design of the corrugated bendable pipe allows the pipeline system to freely adjust its direction and angle according to changes in farmland terrain. This avoids stress concentration caused by rigid connections and significantly reduces the construction difficulty during pipe laying. The threaded connection combined with the double protection of the sealing ring ensures that the pipeline maintains excellent airtightness even when subjected to water pressure fluctuations. It is particularly suitable for agricultural irrigation scenarios that are exposed to sun and rain for extended periods. This flexible connection method not only extends the service life of the pipeline but also significantly reduces water waste caused by leakage.
[0017] 2. As described in 1, the coordinated design of the threaded lifting mechanism and the quick-locking pin enables precise adjustment and quick locking of the pipeline installation height, allowing the irrigation pipeline to flexibly adapt to the growth height requirements of different crops. The combination structure of the conical head and the chassis greatly improves the anti-settlement ability of the support system in soft farmland soil. Its unique mechanical distribution design ensures that the lower end is firmly inserted into the soil, while the large-area chassis disperses the upper load. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the connector of this utility model;
[0020] Figure 3 This is a schematic diagram showing the distribution of the sealing ring and annular groove of this utility model;
[0021] Figure 4 This is an enlarged schematic diagram of point A in this utility model;
[0022] Figure 5 This is a schematic diagram of the shape of the sealing ring of this utility model.
[0023] In the diagram: 1. Connecting seat; 11. Corrugated bendable pipe; 12. Pipe body; 13. External thread one; 14. Internal thread one; 15. Annular groove; 16. Sealing ring; 2. Rod seat; 21. Round rod; 22. Sleeve; 23. External thread two; 24. Internal thread two; 25. Base plate; 26. Conical head; 2001. Pin groove; 2002. Locking pin; 2003. Spring; 2004. Pin hole. Detailed Implementation
[0024] 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.
[0025] Reference Figures 1-5 An agricultural irrigation pipeline connection component includes a connector 1 and a pipeline body 12. Pipe interfaces are provided on both sides of the connector 1, which can be used for the installation of the pipeline body 12. A corrugated bendable pipe 11 is provided in the middle of the connector 1. The corrugated bendable pipe 11 can adjust the connection angle of the two ends of the pipeline interfaces according to actual needs, and can be bent appropriately. It can be adjusted according to the distribution position of the adjacent pipelines. The inside of the pipeline interface is inserted and connected to the surface of the pipeline body 12.
[0026] The surface of the pipe body 12 is provided with an external thread 13, and the pipe interface of the connector 1 is provided with an internal thread 14. The internal thread 14 and the external thread 13 are threaded together. Through the cooperation of the external thread 13 and the internal thread 14, the pipe interface of the pipe body 12 and the connector 1 can be fixed. The connector 1 has an annular groove 15 inside, and a sealing ring 16 is embedded in the annular groove 15. The sealing ring 16 is made of water-swellable rubber material. The inner side of the sealing ring 16 is tightly wrapped with the surface of the pipe body 12. The sealing ring 16 and the pipe body 12 are in an interference fit, which can increase the sealing effect of the connection between the pipe interface and the pipe body 12.
[0027] It should be further explained that a rod seat 2 is fixed at the lower end of the connecting seat 1. A round rod 21 is inserted into the inside of the rod seat 2. A sleeve 22 is sleeved on the surface of the round rod 21. There are two sets of rod seats 2, which are installed below the corresponding pipe interfaces. When some pipes are connected, they will be set at a certain height with the ground. By connecting the rod seat 2 with the round rod 21 and cooperating with the extension and retraction of the sleeve 22, the connecting seat 1 can be erected and its height adjusted.
[0028] It should be further explained that the surface of the round rod 21 is provided with external thread 23, and the inner side of the sleeve 22 is provided with internal thread 24. The external thread 23 and the internal thread 24 are threaded together. Through the cooperation of the external thread 23 and the internal thread 24, the position of the connecting seat 1 can be fixed after the height is adjusted.
[0029] It should be further explained that the lower end of the sleeve 22 is fixed with a base plate 25, and the lower end of the base plate 25 is welded and fixed with a conical head 26. Since the whole device is set in the farmland, in order to ensure that the connecting seat 1 can be stably connected with the soil when it is raised, the conical head 26 is inserted into the soil and cooperates with the base plate 25 to fit with the soil surface to form a stable positioning support with the soil.
[0030] It should be further noted that the upper end of the round rod 21 is provided with a pin groove 2001, and a locking pin 2002 is slidably sleeved inside the pin groove 2001. The end of the locking pin 2002 is a curved structure, and the locking pin 2002 is a hand-pressable structure, which is simple and quick to operate and requires no tools.
[0031] It should be further noted that a spring 2003 is provided inside the pin groove 2001. The two ends of the spring 2003 are fixedly assembled with the inner wall surface of the pin groove 2001 and the surface of the locking pin 2002, respectively. The spring 2003 can ensure the stable extension and retraction of the locking pin 2002, so that it can rebound stably after compression.
[0032] It should be further explained that the surface of the rod seat 2 is provided with a pin hole 2004 that penetrates through it. The surface of the locking pin 2002 slides through the interior of the pin hole 2004. In order to use the tapered head 26 according to the actual situation, when installation is required, the round rod 21 is inserted into the interior of the rod seat 2. At this time, through the reset effect of the spring 2003, the locking pin 2002 can be sleeved and engaged with the pin hole 2004 to fix the rod seat 2 and the round rod 21. Thus, the tapered head 26 and the connecting seat 1 can be installed and used.
[0033] Working method: The corrugated bendable pipe 11 in this solution is the core component of the connector 1. It adopts a flexible corrugated metal structure design, which allows it to bend moderately within the axial and radial range. When there is an angular deviation between adjacent pipes due to terrain or installation requirements, the corrugated pipe can be manually adjusted to ensure that the pipe interface and the pipe body 12 can be smoothly connected. At the same time, the pipe interface is provided with an internal thread 14, which is screwed and fixed with the external thread 13 on the surface of the pipe body to form a mechanical lock. The sealing ring 16 is made of water-swellable rubber material. After the pipe is connected, it expands when it comes into contact with water and has an interference fit with the pipe body to further enhance the sealing performance. The design of the annular groove 15 ensures that the sealing ring is under uniform pressure and prevents leakage due to pipe vibration or water pressure fluctuation. This structure takes into account both flexibility and sealing performance and is suitable for pipeline layout in complex terrain.
[0034] The connecting seat 1 is connected to the round rod 21 through the rod seat 2. The surface of the round rod is provided with external thread 23, which cooperates with the internal thread 24 inside the sleeve 22 to achieve height adjustment. Rotating the sleeve can drive the chassis 25 to rise and fall, thereby adapting to the irrigation needs of different ground heights. The conical head 26 under the chassis is inserted into the soil, and combined with the contact surface between the chassis and the ground, it forms a double anti-overturning support. The locking pin 2002 at the upper end of the round rod 21 is elastically reset by the spring 2003 and locked with the pin hole 2004 of the rod seat 2 to prevent the round rod from accidentally coming out. This structure combines thread fine adjustment and mechanical locking, which not only ensures the stability of the support, but also simplifies the field installation process, and is especially suitable for soft soil or sloping environments.
[0035] The assembly of the rod seat 2 and the round rod 21 adopts a hand-pressable locking pin 2002 design. The end of the locking pin has a curved structure. When inserted into the rod seat, the spring 2003 is automatically compressed until the pin hole 2004 is aligned. Then, the spring pushes the locking pin out to complete the locking. During disassembly, the parts can be separated simply by pressing the locking pin, without the need for tools. This mechanism achieves bidirectional self-locking through the elastic deformation of the spring, which avoids the cumbersome thread adjustment and ensures the connection strength. At the same time, the wedge-shaped fit between the conical head 26 and the soil enhances the pull-out resistance, while the threaded fixation of the sleeve 22 further prevents the support structure from loosening. This principle ensures quick assembly and disassembly while taking into account the needs of frequent adjustments in agricultural environments and the reliability of long-term use.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An agricultural water irrigation pipe connection assembly comprising a coupling seat (1) and a pipe body (12), characterized in that: Both sides of the connecting seat (1) are provided with pipe interfaces, and a corrugated bendable pipe (11) is provided in the middle of the connecting seat (1). The inside of the pipe interface is inserted and connected to the surface of the pipe body (12). The surface of the pipe body (12) is provided with an external thread (13), and the pipe interface of the connector (1) is provided with an internal thread (14). The internal thread (14) and the external thread (13) are threaded together. The connector (1) has an annular groove (15) inside, and a sealing ring (16) is embedded inside the annular groove (15). The sealing ring (16) is made of water-swellable rubber material, and the inner side of the sealing ring (16) is tightly wrapped against the surface of the pipe body (12).
2. An agricultural water irrigation pipeline connection assembly according to claim 1, characterised in that: The lower end of the connecting seat (1) is fixed with a rod seat (2), a round rod (21) is inserted inside the rod seat (2), and a sleeve (22) is sleeved on the surface of the round rod (21). There are two sets of rod seats (2), which are installed below the corresponding pipe interfaces respectively.
3. An agricultural water irrigation pipeline connection assembly according to claim 2, characterised in that: The surface of the round rod (21) is provided with an external thread (23), and the inner side of the sleeve (22) is provided with an internal thread (24). The external thread (23) and the internal thread (24) are threaded together.
4. An agricultural water irrigation pipeline connection assembly according to claim 3, characterised in that: The lower end of the sleeve (22) is fixed with a base plate (25), and a conical head (26) is welded and fixed to the lower end of the base plate (25).
5. An agricultural water irrigation pipeline connection assembly according to claim 4, characterised in that: The upper end of the round rod (21) is provided with a pin groove (2001), and a locking pin (2002) is slidably sleeved inside the pin groove (2001). The end of the locking pin (2002) is a curved surface structure.
6. An agricultural water irrigation pipeline connecting assembly according to claim 5, characterised in that: A spring (2003) is provided inside the pin groove (2001), and the two ends of the spring (2003) are fixedly assembled with the inner wall surface of the pin groove (2001) and the surface of the locking pin (2002), respectively.
7. An agricultural water irrigation pipeline connection assembly according to claim 6, characterised in that: The surface of the rod seat (2) is provided with a pin hole (2004) that penetrates its interior, and the surface of the locking pin (2002) slides through the interior of the pin hole (2004).