A drip irrigation tape anti-drip self-locking sealing connection mechanism

Abstract

The utility model discloses a kind of drip irrigation tape anti-dripping self-locking sealing connecting mechanisms, including sealing inner support body and locking outer clamp, sealing inner support body includes tube body, the outer peripheral wall of tube body is sequentially provided with annular positioning support table, second annular sealing table and first annular sealing table towards its one end, locking outer clamp includes the sleeve pipe of being movably sleeved on tube body;The utility model can effectively improve sealing reliability by the cooperation of sealing inner support body and locking outer clamp, leakage rate is low under 0.05-0.3MPa irrigation pressure, and installation operation is simple, structure stability is strong, can resist water pressure fluctuation and external force interference by self-locking structure, avoid loosening and separation, the sealing mechanism can be applied to various drip irrigation tape installation parts of drip irrigation system, including but not limited to tee joint, straight-through joint, plug, bypass and the connecting form of other, can satisfy the performance requirement of intelligent agricultural precision water and fertilizer integrated irrigation.

Description

Technical Field

[0001] This utility model relates to the field of drip irrigation tape sealing connection technology, specifically to a leak-proof self-locking sealing connection mechanism suitable for smart agriculture precision water and fertilizer integrated irrigation system. It can be widely used in various drip irrigation tape installation parts such as T-joints, straight joints, plugs, bypasses and valve interfaces in drip irrigation systems. Background Technology

[0002] Drip irrigation, as a core technology of precision water and fertilizer integration in smart agriculture, directly affects crop growth and water and fertilizer use efficiency due to its irrigation uniformity and sealing reliability. Currently, the drip irrigation tape capillary connectors used in the field have many technical defects: Insufficient sealing performance: Traditional pull ring type fittings have a simple structure and fix the drip tape only through a single contact surface. The pressure distribution on the sealing surface is uneven, and leakage is prone to occur under the normal irrigation pressure of 0.05-0.3MPa, resulting in water and fertilizer waste and affecting the uniformity of irrigation. Insufficient structural stability: Traditional pull ring type pipe fittings lack a reliable self-locking mechanism, and are prone to loosening and detachment when subjected to external force collisions in the field or fluctuations in irrigation water pressure, resulting in damage to the drip irrigation tape and interruption of irrigation; Installation inconvenience: Although nut-type pipe fittings have a good sealing effect, they have high production costs and require tools for tightening, resulting in low efficiency in field construction. To address the shortcomings of the existing technology, this utility model proposes a drip-proof self-locking sealing connection mechanism. By optimizing the structural design, it solves the problems of leakage, inconvenient installation, and poor stability of existing connectors. Utility Model Content

[0003] The purpose of this invention is to provide a drip irrigation tape anti-drip self-locking sealing connection mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A drip irrigation tape anti-drip self-locking sealing connection mechanism includes a sealing inner support body and a locking outer clamp. The sealing inner support body includes a tube body, and an annular positioning support platform, a second annular sealing platform, and a first annular sealing platform are sequentially arranged on the outer peripheral wall of the tube body towards one end. The locking outer clamp includes a sleeve that can be movably sleeved on the tube body. A tapered hole is provided in the sleeve, and an annular positioning groove is formed on the inner wall of the tapered hole.

[0005] As a further embodiment of this utility model: the included angle between the two outer walls of the first annular sealing platform is 20°-35°, the included angle between the two outer walls of the second annular sealing platform is 25°-40°, and the included angle between the two outer walls of the annular positioning support platform and the axis of the pipe body is 100°-140°.

[0006] As a further embodiment of this utility model, the taper dimension of the taper hole is 1:5-1:12.

[0007] As a further embodiment of this utility model: a flared opening is provided at the large-diameter end of the tapered hole inside the sleeve.

[0008] As a further improvement of this utility model, the minimum inner diameter of the annular positioning groove is not greater than the maximum outer diameter of the second annular sealing platform.

[0009] Compared with the prior art, the beneficial effects of this utility model are: This invention effectively improves sealing reliability through the combination of a sealed inner support and a locking outer clamp. It exhibits a low leakage rate under irrigation pressures of 0.05-0.3 MPa, is easy to install and operate, and has strong structural stability. Its self-locking structure resists water pressure fluctuations and external interference, preventing loosening and detachment. This sealing mechanism can be applied to various drip irrigation tape installation locations in drip irrigation systems, including but not limited to T-joints, straight connectors, plugs, and bypass connections. It meets the performance requirements of precision water and fertilizer integrated irrigation in smart agriculture and is of great significance for improving irrigation quality, increasing the effective utilization rate of water and fertilizer, and reducing field management costs in intelligent irrigation systems. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a drip irrigation tape anti-drip self-locking sealing connection mechanism.

[0011] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0012] Figure 3 This is a schematic diagram of the use of a drip irrigation tape anti-drip self-locking sealing connection mechanism.

[0013] Among them, the sealing inner support body 1, the pipe body 2, the first annular sealing platform 3, the second annular sealing platform 4, the annular positioning support platform 5, the locking outer clamp 6, the sleeve 7, the tapered hole 8, the flared mouth 9, the annular positioning groove 10, and the drip irrigation tape 11. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1-3In this embodiment of the utility model, a drip irrigation tape anti-drip self-locking sealing connection mechanism includes a sealing inner support body 1 and a locking outer clamp 6. The sealing inner support body 1 is made of PA66+15% glass fiber reinforced material, which has the characteristics of wear resistance, aging resistance and high rigidity, and is suitable for high temperature and humid environment in the field. The sealing inner support body 1 includes a tube body 2. The outer peripheral wall of the tube body 2 is provided with an annular positioning support platform 5, a second annular sealing platform 4 and a first annular sealing platform 3 in sequence at one end. The locking outer clamp 6 is made of modified PP material, which has both elasticity and toughness, is easy to install manually and is not easy to crack. The locking outer clamp 6 includes a sleeve 7 that can be movably sleeved on the tube body 2. The sleeve 7 is provided with a tapered hole 8. An annular positioning groove 10 is opened on the inner wall of the tapered hole 8. The minimum inner diameter of the annular positioning groove 10 is not greater than the maximum outer diameter of the second annular sealing platform 4.

[0016] By adopting the above-described solution, this utility model, due to the tapered hole 8 inside the sleeve 7, allows the drip irrigation tape 11 to be fitted onto the tube body 2. After the first annular sealing platform 3, the second annular sealing platform 4, and the annular positioning support platform 5 are sequentially inserted into the drip irrigation tape 11, the sleeve 7 is moved onto the first annular sealing platform 3 on the tube body 2 until the second annular sealing platform 4 is engaged in the annular positioning groove 10. At this point, the first annular sealing platform 3 tightly presses the drip irrigation tape 11 against the inner wall of the sleeve 7, achieving a primary seal, while the second annular sealing platform 4... The drip irrigation tape 11 rests against the annular positioning groove 10, and the annular positioning groove 10, the drip irrigation tape 11 and the outermost edge of the second annular sealing platform 4 form an interference fit, realizing the locking and secondary sealing between the pipe body 2, the drip irrigation tape 11 and the sleeve 7. At the same time, the annular positioning support platform 5 presses the drip irrigation tape 11 tightly against the end of the sleeve 7 to form a tertiary seal, so as to ensure the sealing effect between the drip irrigation tape 11 and the pipe body 2, and can prevent the sleeve 7 from loosening on the drip irrigation tape 11 due to water pressure fluctuations. The operation is simple and quick, and the effect is good.

[0017] In the specific production process, the ends of two tubes 2 that are away from the first annular sealing platform 3 are fixed and connected to each other to form a straight connector. The ends of three tubes 2 that are away from the first annular sealing platform 3 are connected to each other to form a three-way connector. The end of tube 2 that is away from the first annular sealing platform 3 is blocked to form a plug. In addition, this sealing connection mechanism can also be directly applied to valve interfaces to meet the different usage requirements of drip irrigation tape systems.

[0018] In one embodiment of this utility model, the included angle between the two outer walls of the first annular sealing platform 3 is an acute angle of 20°-35°. The acute angle can ensure the concentration of the squeezing force on the drip irrigation tape 11 and ensure the sealing effect. The tooth tip arc of the first annular sealing platform 3 is R0.1-R0.3mm, and its angle matches the elastic modulus of the drip irrigation tape material (0.8-1.5GPa for PE / PVC). The 20°-35° angle allows the arc surface of the tooth tip to be embedded into the pipe wall by 0.1-0.3mm under the action of locking force, thus forming a seal without damaging the pipe wall structure.

[0019] The included angle between the two outer walls of the second annular sealing platform 4 is 25°-40°, slightly larger than the angle of the first annular sealing platform 3, to form a gradient sealing pressure. The tooth tip arc of the second annular sealing platform 4 is R0.15-R0.35mm, which enhances the fit with the annular positioning groove 10 and avoids excessive local stress that could cause damage to the drip irrigation tape 11. The slightly larger angle of the second annular sealing platform 4 also makes the extrusion pressure of the secondary seal slightly lower than that of the primary seal, avoiding the superposition of stress on the two sealing surfaces that could lead to pipe wall rupture. At the same time, the second annular sealing platform 4 forms an interference fit after squeezing the drip irrigation tape 11 into the annular positioning groove 10, making it more stable when triggering self-locking.

[0020] The angle between the outer walls of the two sides of the annular positioning support 5 and the axis of the tube 2 is 100°-140°. Specifically, when adapting to thin-walled drip irrigation tape 11 (wall thickness 0.2-0.4mm): 120°-140° is preferred, as a gentler guide slope can reduce the squeezing damage to the thin-walled tube wall and ensure smooth insertion; when adapting to thick-walled drip irrigation tape 11 (wall thickness 0.5-0.8mm): 100°-120° is preferred, as a slightly steeper guide slope can improve positioning accuracy and prevent displacement when the thick-walled tube is inserted; the tooth tip arc of the annular positioning support 5 is R0.3-R0.6mm to avoid scratching the inner wall of the drip irrigation tape 11.

[0021] In one embodiment of this utility model, the taper size of the tapered hole 8 is 1:5-1:12, and the corresponding taper angle is 9.46°-11.31°. When the taper is too large (greater than 1:5), the resistance to manually pushing and tightening the outer clamp 6 will be greater than 30N, which is more laborious and increases the difficulty of installation. When the taper is too small (less than 1:12), the extrusion pressure is insufficient, which will cause the first annular sealing platform 3 and the second annular sealing platform 4 to be unable to be effectively embedded in the pipe wall. The taper range of 1:5-1:12 can achieve a balance between labor-saving manual installation (thrust ≤25N) and sufficient sealing pressure (radial pressure ≥40N).

[0022] Specific combination Figure 2 In one embodiment of this utility model, a flared mouth 9 is provided inside the sleeve 7 at the large-diameter end of the tapered hole 8.

[0023] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A drip irrigation tape anti-drip self-locking sealing connection mechanism, characterized in that: It includes a sealing inner support body (1) and a locking outer clamp (6). The sealing inner support body (1) includes a tube body (2). The outer peripheral wall of the tube body (2) is provided with an annular positioning support platform (5), a second annular sealing platform (4) and a first annular sealing platform (3) in sequence at one end. The locking outer clamp (6) includes a sleeve (7) that can be movably sleeved on the tube body (2). A tapered hole (8) is provided in the sleeve (7). An annular positioning groove (10) is opened on the inner wall of the tapered hole (8).

2. The drip irrigation tape anti-drip self-locking sealing connection mechanism according to claim 1, characterized in that: The included angle between the outer walls of the first annular sealing platform (3) is 20°-35°, the included angle between the outer walls of the second annular sealing platform (4) is 25°-40°, and the included angle between the outer walls of the annular positioning support platform (5) and the axis of the tube body (2) is 100°-140°.

3. The drip irrigation tape anti-drip self-locking sealing connection mechanism according to claim 1, characterized in that: The taper dimension of the tapered hole (8) is 1:5-1:

12.

4. The drip irrigation tape anti-drip self-locking sealing connection mechanism according to claim 1, characterized in that: The sleeve (7) is provided with a flared mouth (9) at the large diameter end of the tapered hole (8).

5. The drip irrigation tape anti-drip self-locking sealing connection mechanism according to claim 1, characterized in that: The minimum inner diameter of the annular positioning groove (10) is not greater than the maximum outer diameter of the second annular sealing plate (4).

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