Water-hammer-resistant PVC-M irrigation agricultural pipe

Abstract

The utility model relates to the technical field of irrigation pipelines, in particular to a water-hammer-resistant PVC-M irrigation agricultural pipe which is composed of an outer pipeline, an inner pipeline and a buffering mechanism arranged between the outer pipeline and the inner pipeline. Two ends of the buffer mechanism are fixedly connected with the inner side of the outer pipeline and the outer side of the inner pipeline in sequence; gaps are reserved between the buffering mechanism and the outer pipeline and between the buffering mechanism and the inner pipeline and can be used for being filled with heat preservation materials. Through the design that the buffering mechanism is arranged between the outer pipeline and the inner pipeline, the water hammer effect occurring in the long-distance water conveying process is absorbed by the buffering mechanism, the situation that the pipeline is damaged by force generated by the water hammer effect is avoided, and the buffering mechanism is more suitable for the long-distance water conveying pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of irrigation pipes, and more specifically to a water hammer resistant PVC-M irrigation agricultural pipe. Background Art

[0002] Water hammer is a phenomenon that often occurs during water supply and some liquid transportation, when the force in the pipeline suddenly increases due to the opening and closing of valves or pumps. This water hammer phenomenon is also called water hammer. In addition to causing annoying noise and vibration, its severity will affect the operation of the entire pipeline system and damage equipment such as pumps and check valves.

[0003] In the long-distance water pipelines of the irrigation system, water hammer may occur due to factors such as the inertia of water flow, terrain changes, water pump start and stop, and rapid opening and closing of valves. The utility model patent with the Chinese patent announcement number CN220770491U discloses a water hammer eliminator for irrigation pipelines, including a water hammer eliminator body, the water hammer eliminator body is a variable diameter structure composed of a 219 diameter cavity and a 168 diameter cavity, the 219 diameter cavity is provided with a cavity elastic frame inside, and the cavity elastic frame is provided with a cavity baffle at the junction of the 219 diameter cavity and the 168 diameter cavity, and the top of the 168 diameter cavity is provided with a 2.5-inch welded pipe clamp, and the top of the 2.5-inch welded pipe clamp is connected to an exhaust valve. The water hammer eliminator for irrigation pipelines can protect components such as water pumps and check valves, increase the service life of water pumps, and reduce the failure of sprinkler irrigation machines.

[0004] However, the above-mentioned water hammer eliminator can only protect components such as water pumps and check valves, but cannot protect the long-distance water pipelines of the irrigation system, which may cause the pipelines to rupture due to water hammer and cause the irrigation system to fail. At the same time, the maintenance cost and time of long-distance water pipelines are high, which in turn affects the irrigation of crops and increases the losses of users. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a water hammer resistant PVC-M irrigation agricultural pipe with buffering capability.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions, which mainly include:

[0007] The water hammer resistant PVC-M irrigation agricultural pipe is composed of an outer pipe, an inner pipe and a buffer mechanism arranged between the outer pipe and the inner pipe; the two ends of the buffer mechanism are fixedly connected to the inner side of the outer pipe and the outer side of the inner pipe in turn; a gap is left between the buffer mechanism and the outer pipe and the inner pipe, which can be used to fill with insulation materials.

[0008] Preferably, the outer pipe consists of a pipe shell, a buffer layer and a fixed layer, the pipe shell is arranged on the outermost side of the outer pipe, the buffer layer is fixedly connected to the inner side of the pipe shell, the fixed layer is fixedly connected to the inner side of the buffer layer, and a buffer mechanism is fixedly connected between the inner side of the fixed layer and the outer side of the inner pipe.

[0009] Preferably, the buffer mechanism includes a fixed sleeve, a telescopic rod, a connecting piece and a spring, a plurality of fixed sleeves are fixedly connected to the inner side of the fixed layer, a telescopic rod is slidably connected in each of the fixed sleeves, a spring is installed between the telescopic rod and the fixed sleeve, and a connecting piece is fixedly connected to one end of each of the telescopic rods away from the fixed sleeve, and the connecting piece is fixedly connected to the outer side of the inner pipe.

[0010] Preferably, the connecting piece is made of soft rubber material.

[0011] It can be seen from the above technical solution that compared with the prior art, the utility model is designed to arrange the buffer mechanism between the outer pipe and the inner pipe, so that the water hammer effect occurring during long-distance water delivery is absorbed by the buffer mechanism, thereby preventing the force generated by the water hammer effect from damaging the pipe, and is more suitable for long-distance water delivery pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0013] Figure 1 It is a structural sectional view of the utility model.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 3 It is a cross-sectional view of the buffer mechanism of the utility model.

[0016] Explanation of the reference numerals: 1- pipe outer shell, 2- buffer layer, 3- fixed layer, 4- inner pipe, 5- buffer mechanism, 501- fixed sleeve, 502- telescopic rod, 503- connecting piece, 504- spring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example

[0019] Water hammer resistant PVC-M irrigation agricultural pipes, such as Figure 1-Figure 3 As shown, it is composed of an outer pipe, an inner pipe 4 and a buffer mechanism 5 arranged between the outer pipe and the inner pipe 4; the two ends of the buffer mechanism 5 are fixedly connected to the inner side of the outer pipe and the outer side of the inner pipe 4 in turn; a gap is left between the buffer mechanism 5 and the outer pipe and the inner pipe 4, which can be used to fill with insulation material.

[0020] In order to further optimize the above scheme, the outer pipe is composed of a pipe shell 1, a buffer layer 2 and a fixed layer 3. The pipe shell 1 is arranged on the outermost side of the outer pipe, the buffer layer 2 is fixedly connected to the inner side of the pipe shell 1, the fixed layer 3 is fixedly connected to the inner side of the buffer layer 2, and a buffer mechanism 5 is fixedly connected between the inner side of the fixed layer 3 and the outer side of the inner pipe 4.

[0021] In order to further optimize the above scheme, the buffer mechanism 5 includes a fixed sleeve 501, a telescopic rod 502, a connecting piece 503 and a spring 504. A plurality of fixed sleeves 501 are fixedly connected to the inner side of the fixed layer 3. A telescopic rod 502 is slidably connected in each of the fixed sleeves 501. A spring 504 is installed between the telescopic rod 502 and the fixed sleeve 501. A connecting piece 503 is fixedly connected to one end of each of the telescopic rods 502 away from the fixed sleeve 501. The connecting piece 503 is fixedly connected to the outer side of the inner pipe 4.

[0022] In order to further optimize the above solution, the connecting piece 503 is made of soft rubber material.

[0023] When in use, the pipeline is used as a long-distance water delivery pipeline, and there is no need to install a water hammer eliminator separately. During use, when the water hammer effect occurs, the force exerted on the inner pipeline 4 will be transmitted to the outer pipeline through the buffer mechanism 5. The center of the outer pipeline is the buffer layer 2, which will further absorb the force of the water hammer effect, thereby avoiding pipeline rupture and affecting irrigation. At the same time, the connector 503 is made of soft rubber material, so that the force of the water hammer effect will first be partially absorbed by the connector 503, and then most of it will be absorbed by the spring 504 of the buffer mechanism 5, and finally absorbed by the buffer layer 2.

[0024] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0025] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Water hammer resistant PVC-M irrigation agricultural pipe, characterized by: It consists of an outer pipe, an inner pipe and a buffer mechanism arranged between the outer pipe and the inner pipe; the two ends of the buffer mechanism are fixedly connected to the inner side of the outer pipe and the outer side of the inner pipe in turn; a gap is left between the buffer mechanism and the outer pipe and the inner pipe, which can be used to fill with insulation material.

2. The water hammer resistant PVC-M irrigation agricultural pipe according to claim 1, characterized in that: The outer pipe is composed of a pipe shell, a buffer layer and a fixed layer. The pipe shell is arranged on the outermost side of the outer pipe, the buffer layer is fixedly connected to the inner side of the pipe shell, the fixed layer is fixedly connected to the inner side of the buffer layer, and a buffer mechanism is fixedly connected between the inner side of the fixed layer and the outer side of the inner pipe.

3. The water hammer resistant PVC-M irrigation agricultural pipe according to claim 2, characterized in that: The buffer mechanism includes a fixed sleeve, a telescopic rod, a connecting piece and a spring. A plurality of fixed sleeves are fixedly connected to the inner side of the fixed layer. A telescopic rod is slidably connected in each of the fixed sleeves. A spring is installed between the telescopic rod and the fixed sleeve. One end of each of the telescopic rods away from the fixed sleeve is fixedly connected to a connecting piece, and the connecting piece is fixedly connected to the outer side of the inner pipe.

4. The water hammer resistant PVC-M irrigation agricultural pipe according to claim 3, characterized in that: The connecting piece is made of soft rubber material.

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