Anti-blocking joint sealing device for farmland drip irrigation pipe

Abstract

The utility model relates to the field of agricultural water-saving irrigation equipment discloses a kind of anti-blocking farmland drip irrigation pipe joint sealing device, including connector and pressing outer sleeve, the top of the connector is fixedly connected with the integrally-formed connecting pipe, the outer wall of the connecting pipe is fixedly connected with the integrally-formed convex ring, the inner wall of the pressing outer sleeve is provided with inclined surface, the inner wall of the pressing outer sleeve is fixedly connected with multiple sealing compression parts periphery, multiple the sealing compression parts are arranged in the below of inclined surface with annular equal interval, the end of the sealing compression part away from the pressing outer sleeve is provided with abutting face. In the utility model, by adopting the mode that convex ring is combined with multiple sealing compression parts, good sealing effect is ensured, installation process does not need to wind sealing adhesive tape, only needs to wear water pipe, screws outer sleeve two steps to be completed, when large-scale farmland drip irrigation system is laid, reduces artificial cost and construction period.

Description

Technical Field

[0001] This utility model relates to the field of agricultural water-saving irrigation equipment, and in particular to a sealing device for a drip irrigation pipe joint in farmland that prevents clogging. Background Technology

[0002] With the development of modern agricultural water-saving technology, drip irrigation systems have been widely used in agricultural production such as field crops, orchards, and greenhouse vegetables due to their advantages such as high efficiency, water saving, and precise fertilization. In drip irrigation systems, the connector is a key component that connects the various sections of drip irrigation pipe and realizes water flow diversion and delivery. Its sealing performance and anti-clogging ability directly affect the irrigation effect and system life.

[0003] Existing drip irrigation pipe connectors mostly use plug-in or threaded connection structures to achieve physical connection between pipes. However, plug-in connectors rely solely on the interference fit between the pipe and the interface to achieve a seal. After long-term use, leaks and seepage are prone to occur due to pipe aging, vibration, or water pressure fluctuations, resulting in water waste. While traditional threaded connections have a better sealing effect than plug-in connectors, they require sealing tape (such as PTFE tape) to be wrapped around the thread groove for auxiliary sealing. Operators need to manually control the number of wraps and the tightness. Too little wrapping can easily lead to leakage, while too much can cause the threads to jam. Moreover, this step must be repeated for each connector installation, which is time-consuming and labor-intensive. When laying large-scale agricultural drip irrigation systems, it will significantly increase construction time and reduce overall work efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a sealing device for the joint of a drip irrigation pipe in farmland to prevent clogging, which aims to solve the problem in the prior art that "wrapping sealing tape increases construction time and reduces overall work efficiency".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sealing device for a drip irrigation pipe connector for preventing blockage, comprising a connector and a compression sleeve. The top of the connector is fixedly connected to an integrally formed connecting pipe, and the outer wall of the connecting pipe is fixedly connected to an integrally formed convex ring. The inner wall of the compression sleeve is provided with an inclined surface, and multiple sealing and pressing elements are circumferentially fixedly connected to the inner wall of the compression sleeve. The multiple sealing and pressing elements are arranged in a ring at equal intervals below the inclined surface. The end of each sealing and pressing element away from the compression sleeve is provided with an abutment surface, and the compression sleeve is threadedly connected to the outer wall of the connector.

[0006] As a further description of the above technical solution: The outer wall of the connector is provided with external threads, the clamping sleeve is threaded onto the external threads, and the inner wall of the bottom of the connector is provided with internal threads.

[0007] As a further description of the above technical solution: The connector has a filter flow stabilizing cavity inside, and the inner wall of the filter flow stabilizing cavity is provided with a spiral swirling flow guide groove.

[0008] As a further description of the above technical solution: The cross-sectional shape of the convex ring is set as trapezoidal, with the short side of the trapezoid facing upwards.

[0009] As a further description of the above technical solution: The outer diameter of the convex ring is slightly larger than the inner diameter of the initial ring formed by the free ends of the multiple sealing and clamping components.

[0010] As a further description of the above technical solution: An integrally formed water pipe end face limiting component is fixedly connected to the outer wall of the connecting pipe, and the water pipe end face limiting component is located below the convex ring.

[0011] As a further description of the above technical solution: The outer circumferential wall of the compression sleeve is provided with multiple vertically arranged anti-slip textures.

[0012] As a further description of the above technical solution: The sealing and clamping component is an arc-shaped block made of elastic metal or reinforced plastic.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by combining a convex ring with multiple sealing and clamping parts, elastic deformation occurs when the drip irrigation pipe is fitted into the connecting pipe, and radial pressure is applied to the drip irrigation pipe during the tightening and clamping of the outer sleeve, ensuring a good sealing effect. The installation process does not require wrapping sealing tape, and can be completed in just two steps: inserting the water pipe and tightening the outer sleeve. This reduces labor costs and construction cycle when laying large-scale farmland drip irrigation systems.

[0014] 2. In this utility model, by using an arc-shaped sealing and clamping component made of elastic metal or reinforced plastic, when there is a slight deviation in the outer diameter of the drip irrigation pipe, the sealing and clamping component can adjust the clamping range through slight deformation, which solves the problem of poor compatibility of existing joints, improves the versatility and flexibility of the device, and reduces the purchase and replacement costs for users due to mismatched pipe specifications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural breakdown diagram of the present invention. Figure 3 This is a three-dimensional cross-sectional view of the pressing outer sleeve in this utility model; Figure 4This is a three-dimensional cross-sectional view of the connector and connecting pipe in this utility model.

[0016] Legend: 11. Connector; 12. Connecting pipe; 13. Raised ring; 14. Water pipe end face limiting component; 111. External thread; 112. Internal thread; 113. Filter flow stabilizing cavity; 21. Pressing outer sleeve; 22. Inclined surface; 23. Sealing and pressing component; 24. Abutting surface; 25. Anti-slip texture. Detailed Implementation

[0017] 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.

[0018] Reference Figure 1 - Figure 3 One embodiment of this utility model is a sealing device for a drip irrigation pipe joint that prevents clogging in farmland. It includes a connector 11 and a compression sleeve 21, both made of UV-resistant polypropylene, suitable for long-term outdoor agricultural use, corrosion-resistant and anti-aging. The top of the connector 11 is fixedly connected to an integrally formed connecting pipe 12 for inserting the drip irrigation pipe to be connected. The outer wall of the connecting pipe 12 is fixedly connected to an integrally formed convex ring 13 for forming an axial limiting step and guiding the installation of the water pipe.

[0019] Reference Figure 2 - Figure 4 The inner wall of the compression sleeve 21 is provided with an inclined surface 22. Multiple sealing and pressing parts 23 are fixedly connected to the inner wall of the compression sleeve 21 in a circumferential direction. The multiple sealing and pressing parts 23 are arranged in a ring at equal intervals below the inclined surface 22. The end of the sealing and pressing part 23 away from the compression sleeve 21 is provided with an abutment surface 24 for pressing against the outer wall of the drip irrigation pipe.

[0020] Reference Figure 2 - Figure 4The clamping sleeve 21 is threaded to the outer wall of the connector 11. The outer wall of the connector 11 has an external thread 111, and the clamping sleeve 21 is threaded to the external thread 111. The two threads cooperate to achieve axial feeding movement. The inner wall of the bottom of the connector 11 has an internal thread 112, which is used to connect with the main pipe or other drip irrigation components, so as to facilitate the extension of the drip irrigation nozzle to the position where drip irrigation is needed. By passing the water pipe through the clamping sleeve 21 and fitting it on the connecting pipe 12, the inner diameter of the water pipe is smaller than the outer diameter of the convex ring 13 on the surface of the connecting pipe 12, thereby deforming the water pipe and tightly fitting it on the surface of the connecting pipe 12. When the clamping sleeve 21 is rotated to drive the sealing clamping member 23 to move downward, the abutment surface 24 of the sealing clamping member 23 applies radial pressure to the drip irrigation water pipe fitted on the connecting pipe 12, clamping the water pipe between the outer wall of the convex ring 13 and the abutment surface 24, thereby achieving sealing and fixing.

[0021] Reference Figure 4 The connector 11 is equipped with a filter flow stabilizing chamber 113. The inner wall of the filter flow stabilizing chamber 113 is provided with a spiral swirling flow guide groove, which is used to guide the incoming water flow to form a swirling flow, so that the mud and sand particles are thrown towards the inner wall of the chamber and settle under the action of centrifugal force, preventing the downstream dripper from clogging.

[0022] Reference Figure 2 and Figure 4 The cross-sectional shape of the convex ring 13 is set as a trapezoid, with the short side of the trapezoid facing upwards, which facilitates the insertion of the water pipe into the connecting pipe 12. Furthermore, the edge of the convex ring 13 facing the back of the water pipe can reduce the possibility of the water pipe falling off. The convex ring 13 has a conical structure, which generates radial compression force when it is tightened in conjunction with the pressing outer sleeve 21, achieving adaptive sealing for drip irrigation pipes with different outer diameters. The outer diameter of the convex ring 13 is slightly larger than the inner diameter of the initial ring formed by the free ends of multiple sealing and pressing parts 23, so that during the tightening process of the pressing outer sleeve 21, the drip irrigation water pipe is gradually compressed and finally tightly fitted between the outer surface of the convex ring 13 and the abutment surface 24, forming a double sealing structure.

[0023] Reference Figure 2 and Figure 4 The outer wall of the connecting pipe 12 is fixedly connected with an integrally formed water pipe end face limiting member 14, which is located below the convex ring 13 and is used to limit the depth of the drip irrigation water pipe inserted into the connecting pipe 12.

[0024] Reference Figure 1 and Figure 2 The outer wall of the compression sleeve 21 is provided with multiple vertical anti-slip textures 25, which facilitates manual operation by the user and increases the friction during installation and disassembly. The sealing and clamping part 23 is an arc-shaped block made of elastic metal or reinforced plastic, which can produce micro-deformation when subjected to radial force, thereby improving the adaptive clamping ability for drip irrigation pipes of different outer diameters.

[0025] Working principle: When in use, first connect the device to the upstream main pipe or branch pipe through the internal thread 112 at the bottom of the connector 11. Then, pass the drip irrigation pipe to be connected through the compression sleeve 21 and push it in along the direction of the connecting pipe 12 until its end face abuts against the end face limit member 14 of the water pipe. Since the outer diameter of the convex ring 13 is larger than the inner diameter of the water pipe, the water pipe will elastically expand during the insertion process and tightly wrap around the surface of the connecting pipe 12.

[0026] Next, manually rotate and tighten the outer sleeve 21. Its internal thread 112 engages with the external thread 111 of the connector 11, causing the outer sleeve to move downward along the axis. During this process, the inclined surface 22 pushes the multiple circumferentially arranged sealing and tightening parts 23 downward synchronously. The abutting surface 24 at its end gradually presses against the outer wall of the drip irrigation pipe. As the tightening force increases, the water pipe is firmly clamped between the outer surface of the convex ring 13 and the abutting surface 24, forming a double sealing structure that combines axial limiting and radial pressing, ensuring no leakage or detachment during long-term operation.

[0027] After irrigation begins, water flows from the main pipe into connector 11, through connector 12 into drip irrigation pipe, and finally to the roots of the crop for precise irrigation.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing device for a drip irrigation pipe joint in farmland to prevent clogging, characterized in that: The device includes a connector (11) and a clamping sleeve (21). The top of the connector (11) is fixedly connected to an integrally formed connecting tube (12). The outer wall of the connecting tube (12) is fixedly connected to an integrally formed convex ring (13). The inner wall of the clamping sleeve (21) is provided with an inclined surface (22). The inner wall of the clamping sleeve (21) is circumferentially fixedly connected with multiple sealing clamping elements (23). The multiple sealing clamping elements (23) are arranged in a ring at equal intervals below the inclined surface (22). The end of the sealing clamping element (23) away from the clamping sleeve (21) is provided with an abutment surface (24). The clamping sleeve (21) is threadedly connected to the outer wall of the connector (11).

2. The anti-clogging sealing device for farmland drip irrigation pipe joints according to claim 1, characterized in that: The outer wall of the connector (11) is provided with an external thread (111), the compression sleeve (21) is threaded onto the external thread (111), and the inner wall of the bottom of the connector (11) is provided with an internal thread (112).

3. The anti-clogging sealing device for farmland drip irrigation pipe joints according to claim 1, characterized in that: The connector (11) is provided with a filter flow stabilizing cavity (113) inside, and the inner wall of the filter flow stabilizing cavity (113) is provided with a spiral swirling flow guide groove.

4. The anti-clogging sealing device for farmland drip irrigation pipe joints according to claim 1, characterized in that: The cross-sectional shape of the convex ring (13) is set as trapezoidal, and the short side of the trapezoid faces upward.

5. A sealing device for a clog-resistant drip irrigation pipe joint in farmland according to claim 1, characterized in that: The outer diameter of the convex ring (13) is slightly larger than the inner diameter of the initial ring formed by the free ends of the multiple sealing clamping parts (23).

6. The anti-clogging sealing device for farmland drip irrigation pipe joints according to claim 1, characterized in that: The outer wall of the connecting pipe (12) is fixedly connected to an integrally formed water pipe end face limiting member (14), which is located below the convex ring (13).

7. The anti-clogging sealing device for farmland drip irrigation pipe joints according to claim 1, characterized in that: The outer circumferential wall of the compression sleeve (21) is provided with multiple vertically arranged anti-slip textures (25).

8. The anti-clogging sealing device for farmland drip irrigation pipe joints according to claim 1, characterized in that: The sealing clamping element (23) is an arc-shaped block made of elastic metal or reinforced plastic.

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