Irrigation pipeline sealing connection structure

Abstract

The utility model relates to the technical field of irrigation pipelines, and solves the problems that an irrigation pipeline needs to be continuously assembled, replaced and maintained according to irrigation requirements, pre-butt joint cannot be performed on the pipeline during assembly and replacement, so that the assembly efficiency is low, and a certain amount of friction is generated in the pipeline due to repeated insertion, butt joint and assembly of the pipeline. The irrigation pipeline sealing connection structure comprises a pipeline A and a pipeline B. A flange plate A is arranged on the surface of one end of the pipeline A and connected with a plurality of elastic conical sealing rings in a sleeving mode, a flange plate B is arranged at one end of the pipeline B, and annular grooves matched with the elastic conical sealing rings are formed in the pipeline B; the pipeline A is inserted into the pipeline B through the elastic conical sealing ring to form radial sealing; the surface of the flange plate B is rotatably connected with a fixing ring A, the surface of the fixing ring A is vertically symmetrically provided with directional holes, and springs and limiting beads are arranged in the directional holes; the surface of the A flange plate is fixedly connected with a B fixing ring.

Description

Technical Field

[0001] This utility model relates to the field of irrigation pipeline technology, specifically to a sealing connection structure for irrigation pipelines. Background Technology

[0002] The authorization announcement number CN219692527U discloses a connection structure for irrigation pipelines, wherein a connecting plate is provided at the connection between the first irrigation pipeline and the second irrigation pipeline, and positioning rods are symmetrically arranged on both sides of the connecting plate, and sealing rings are provided on both sides of the connecting plate outside the positioning rods; mounting plates are provided on the front surfaces of the first irrigation pipeline and the second irrigation pipeline on the outside of the connecting plate, connecting plates are symmetrically arranged on both sides of the mounting plates, a clamping plate is connected to one side of the connecting plate, a connecting rod is installed on the rear surface of the mounting plate, and mounting rods are provided on the outside of the connecting rods.

[0003] The second electric telescopic rod moves the clamping plate towards the positions of the first and second irrigation pipes, thereby clamping and sealing the first and second irrigation pipes, enabling a quick connection between them.

[0004] However, as an irrigation pipeline, it needs to be constantly assembled, replaced, and maintained according to irrigation needs. During assembly and replacement, it is impossible to pre-connect the pipeline, resulting in low assembly efficiency. Furthermore, repeated insertion and connection of the pipeline causes internal friction and build-up. This solution is not efficient in pipeline assembly and has poor sealing performance. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sealed connection structure for irrigation pipes. This solves the problem that irrigation pipes need to be constantly assembled, replaced, and maintained according to irrigation needs. During assembly and replacement, it is impossible to pre-connect the pipes, resulting in low assembly efficiency. Furthermore, repeated insertion and connection of the pipes leads to internal friction and build-up.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing connection structure for irrigation pipes, including pipe A and pipe B, wherein pipe A has an A flange on one end surface and is fitted with several elastic conical sealing rings, and pipe B has a B flange on one end and an annular groove adapted to the elastic conical sealing rings is opened inside, and pipe A is inserted into pipe B through the elastic conical sealing rings to form a radial seal.

[0007] The B flange is rotatably connected to the A fixing ring. The A fixing ring has symmetrically arranged directional holes on its surface, and a spring and a limiting ball are installed in the directional holes. The A flange is fixedly connected to the B fixing ring. The B fixing ring has symmetrically arranged limiting holes on its inner wall. When the B fixing ring is sleeved on the A fixing ring, rotating the A fixing ring causes the limiting ball to be pushed into the limiting hole by the spring, forming an axial lock. The A flange and the B flange have a ring array of fixing holes on their surfaces, and threaded bolts are installed in the fixing holes to achieve flange fastening.

[0008] In one specific embodiment, the number of elastic conical sealing rings is two or more, and they are arranged at equal intervals along the axial direction of the insertion end of pipe A.

[0009] In a specific embodiment, the A fixing ring is rotatably connected to the B flange via a bearing structure or a hinge structure, and the A fixing ring can rotate around the central axis of the B flange.

[0010] In one specific embodiment, the spring is in a compressed state within the directional hole, and the limiting bead protrudes from the outer surface of the directional hole and forms an interference fit with the limiting hole.

[0011] In a specific embodiment, the fixing holes on the surfaces of flange A and flange B are evenly distributed in six or more sets along the circumference of the flange, and the threaded bolts pass through the corresponding fixing holes for screwing and fixing.

[0012] In one specific embodiment, the annular groove is formed on the inner wall of the B pipe insertion end, and the taper of the annular groove matches the outer conical surface of the elastic conical sealing ring.

[0013] Compared with the prior art, this utility model provides a sealing connection structure for irrigation pipes, which has the following beneficial effects:

[0014] The technical solution disclosed in this utility model achieves efficient radial sealing through a wedge-shaped interlocking structure design of an elastic conical sealing ring and an annular groove. When multiple elastic conical sealing rings fitted at the insertion end of pipe A are embedded in the annular groove on the inner wall of pipe B, the conical surfaces adhere and generate radial extrusion force to form a multi-stage dynamic seal. This structure solves the problem of sealing failure caused by repeated pipe insertion. The elastic conical sealing ring adaptively compensates for interface wear gaps, ensuring reliable sealing of the irrigation pipe under vibration conditions. A quick pre-connection function is provided through a limit bead spring rotation locking mechanism. By rotating the fixing ring A on flange B, the limit bead pushed by the compression spring in the directional hole slides into the limit hole on the side wall of fixing ring B, achieving axial positioning through interference fit. This design significantly simplifies the assembly steps; the operator only needs to rotate 30°-60° to complete the pre-fixation of the pipe, improving efficiency compared to traditional flange connection and preventing pipe misalignment and loosening before pre-installation of threaded bolt 11. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of pipe A and pipe B of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of fixing ring A and fixing ring B of this utility model;

[0019] Figure 4 This is a schematic diagram of the elastic conical sealing ring structure of this utility model.

[0020] In the diagram: 1. Pipe A; 2. Flange A; 3. Elastic conical sealing ring; 4. Pipe B; 5. Flange B; 6. Retaining ring A; 7. Spring; 8. Limiting bead; 9. Retaining ring B; 10. Limiting hole; 11. Threaded bolt; 12. Annular groove. Detailed Implementation

[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Figures 1-4 In one embodiment of this utility model, an irrigation pipe sealing connection structure includes pipe A 1 and pipe B 4. One end of pipe A 1 is provided with flange A 2 and fitted with several elastic conical sealing rings 3. One end of pipe B 4 is provided with flange B 5 and has an annular groove 12 inside that is adapted to the elastic conical sealing rings 3. Pipe A 1 is inserted into the inside of pipe B 4 through the elastic conical sealing rings 3 to form a radial seal.

[0023] The specific problem addressed in this embodiment is that irrigation pipelines require continuous assembly, replacement, and maintenance based on irrigation needs. During assembly and replacement, pre-connection of the pipeline is impossible, leading to low assembly efficiency. Furthermore, repeated insertion and connection of the pipeline causes internal friction and build-up. This invention achieves efficient radial sealing through a wedge-shaped interlocking structure design of an elastic conical sealing ring and annular groove 12. When multiple elastic conical sealing rings 3 fitted at the insertion end of pipe A 1 are embedded into the annular groove 12 on the inner wall of pipe B 4, the conical surfaces adhere and generate radial extrusion force, forming a multi-stage dynamic seal. This structure solves the sealing failure problem caused by repeated pipe insertion. The elastic conical sealing ring 3 adaptively compensates for interface wear gaps, ensuring reliable sealing even under vibration conditions. A quick pre-connection function is provided through the rotation locking mechanism of the limiting bead 7 and spring 8. By rotating the A fixing ring 6 on flange B 5, the limiting bead 8, pushed by the compression spring 7 in the directional hole, slides into the limiting hole 10 on the side wall of the B fixing ring 9, achieving axial positioning through an interference fit. This design significantly simplifies the assembly process. Operators only need to rotate the pipe 30°-60° to pre-fix it, which improves efficiency compared to traditional flange docking and avoids pipe misalignment and loosening before the threaded bolt 11 is pre-installed.

[0024] Flange 5 is rotatably connected to retaining ring 6 (A). Retaining ring 6 has symmetrically arranged directional holes on its surface, with springs 7 and limiting beads 8 installed within these holes. Flange 2 is fixedly connected to retaining ring 9 (B). Retaining ring 9 has symmetrically arranged limiting holes 10 on its inner wall. When retaining ring 9 is fitted onto retaining ring 6, rotating retaining ring 6 causes the limiting beads 8 to be pushed into the limiting holes 10 by spring 7, forming an axial lock. Retaining holes are arranged in a circular array on the surfaces of flanges 2 and 5, with each hole containing a... The threaded bolt 11 achieves flange fastening. In this specific embodiment, during operation, multiple elastic conical sealing rings 3 fitted onto the insertion end of pipe A 1 are inserted into pipe B 4, causing the sealing rings to wedge into the annular groove 12 inside pipe B 4 to form a radial seal. The A fixing ring 6 on flange B 5 is rotated, and the spring 7 in the directional hole pushes the limiting bead 8 into the limiting hole 10 on the side wall of the B fixing ring 9 connected to flange A 2, achieving pre-locking. Finally, the threaded bolt 11 is tightened through the corresponding fixing holes of flanges A and B, completing the triple seal reinforcement. The elastic conical sealing rings 3 engage with the annular groove 12 to achieve fluid sealing, the rotating limiting bead 8 structure provides rapid pre-positioning, and the threaded bolt 11 provides final reinforcement to ensure compressive strength.

[0025] In this specific embodiment, there are two or more elastic conical sealing rings 3, which are arranged at equal intervals along the axial direction of the insertion end of pipe A 1;

[0026] At least two elastic conical sealing rings 3 are arranged equidistantly along the axial direction of the insertion end of pipe A 1. During insertion, they are pressed into the annular groove 12 in stages to form a multi-level sealing interface. The multi-level sealing rings 3 progressively compensate for wear gaps and improve long-term sealing reliability.

[0027] In this specific embodiment, the A fixing ring 6 is rotatably connected to the B flange 5 through a bearing structure or a hinge structure, and the A fixing ring 6 can rotate around the central axis of the B flange 5.

[0028] A retaining ring 6 is connected to flange B 5 via a bearing or hinge, allowing it to rotate smoothly along the flange's central axis during rotational operation.

[0029] In this specific embodiment, the spring 7 is in a compressed state within the directional hole, and the limiting bead 8 partially protrudes from the outer surface of the directional hole and forms an interference fit with the limiting hole 10.

[0030] The spring 7 is pre-compressed and stores energy in the directional hole, which pushes the limiting bead 8 to protrude from the hole wall. When it is aligned with the limiting hole 10, it automatically springs in to form an interference lock. The pre-compressed spring 7 provides constant elastic force, and the interference fit of the limiting bead 8 prevents vibration and loosening.

[0031] In this specific embodiment, the fixing holes on the surfaces of flange A 2 and flange B 5 are evenly distributed in six or more sets along the circumference of the flange, and the threaded bolts 11 pass through the corresponding fixing holes and are screwed in for fixation.

[0032] Six or more sets of threaded bolts 11 are evenly distributed around the circumference of the flange. When tightening, axial pressure is applied evenly to compress the sealing surface.

[0033] In this specific embodiment, the annular groove 12 is formed on the inner wall of the insertion end of pipe B 4, and the taper of the annular groove 12 matches the outer conical surface of the elastic conical sealing ring 3.

[0034] The taper of the annular groove 12 on the inner wall of pipe B is consistent with the outer cone angle of the elastic conical sealing ring 3, so that the entire conical surface of the sealing ring fits against the groove wall when it is compressed.

[0035] Working principle: Multiple elastic conical sealing rings 3 are fitted onto the insertion end of pipe A 1 and inserted into the inside of pipe B 4, so that the sealing rings wedge into the annular groove 12 to form a radial seal. At the same time, the fixing ring 6 on flange B 5 is rotated so that the limiting bead 8 is pushed by spring 7 and locked into the limiting hole 10 on the side wall of fixing ring B 9 to complete the pre-locking. Finally, the threaded bolt 11 is tightened through the fixing holes of flanges A and B to achieve triple sealing and fixation.

[0036] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing connection structure for irrigation pipes, comprising pipe A (1) and pipe B (4), characterized in that: The surface of one end of the A pipe (1) is provided with an A flange (2) and several elastic conical sealing rings (3) are fitted on it. The B pipe (4) is provided with a B flange (5) and an annular groove (12) adapted to the elastic conical sealing rings (3) is opened inside. The A pipe (1) is inserted into the B pipe (4) through the elastic conical sealing rings (3) to form a radial seal. The B flange (5) is rotatably connected to the A fixing ring (6). The A fixing ring (6) has symmetrically arranged directional holes on its surface, and a spring (7) and a limiting bead (8) are installed in the directional holes. The A flange (2) is fixedly connected to the B fixing ring (9). The B fixing ring (9) has symmetrically arranged limiting holes (10) on its inner wall. When the B fixing ring (9) is fitted onto the A fixing ring (6), the A fixing ring (6) is rotated so that the limiting bead (8) is pushed into the limiting hole (10) by the spring (7) to form an axial lock. The A flange (2) and the B flange (5) have a ring array of fixing holes. Threaded bolts (11) are installed in the fixing holes to achieve flange fastening.

2. The sealing connection structure for irrigation pipes according to claim 1, characterized in that: The number of elastic conical sealing rings (3) is two or more, and they are arranged at equal intervals along the axial direction of the insertion end of pipe A (1).

3. The sealing connection structure for irrigation pipes according to claim 1, characterized in that: The fixed ring A (6) is rotatably connected to the flange B (5) through a bearing structure or hinge structure, and the fixed ring A (6) can rotate around the central axis of the flange B (5).

4. The sealing connection structure for irrigation pipes according to claim 1, characterized in that: The spring (7) is in a compressed state inside the directional hole, and the limiting bead (8) protrudes from the outer surface of the directional hole and forms an interference fit with the limiting hole (10).

5. The sealing connection structure for an irrigation pipe according to claim 1, characterized in that: The fixing holes on the surfaces of flange A (2) and flange B (5) are evenly distributed in six or more sets along the circumference of the flange, and the threaded bolts (11) pass through the corresponding fixing holes and are screwed in for fixation.

6. The sealing connection structure for an irrigation pipe according to claim 1, characterized in that: The annular groove (12) is opened on the inner wall of the insertion end of pipe B (4), and the taper of the annular groove (12) matches the outer conical surface of the elastic conical sealing ring (3).

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