CN210470554U

CN210470554U - PVC pipe for land irrigation

Info

Publication number: CN210470554U
Application number: CN201921108630.5U
Authority: CN
Inventors: 谭新民; 成晓刚
Original assignee: Gansu Tianye Water Saving Co Ltd
Current assignee: Gansu Tianye Water Saving Co Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-05-08
Anticipated expiration: 2029-07-15

Abstract

The utility model provides a PVC tubular product for land irrigation belongs to feedwater PVC tubular product field. This PVC tubular product is eccentric reducing tubular product, including integrative injection moulding's xiaokou pipe, wide-mouthed pipe, the one end that the pipe of remaining in the big-mouthed pipe was kept away from to the xiaokou pipe is equipped with the external screw thread, the one end side that the pipe of remaining in the small-mouthed pipe was kept away from to the wide-mouthed pipe is equipped with the delivery port, and this delivery port is equipped with the internal thread, the pipe body of wide-mouthed pipe still is equipped with the detachable filter inside the one end of keeping away from the pipe of remaining in the small-mouthed pipe, the. The utility model discloses a set up the seal structure that filtration, both ends set up easily to connect inside tubular product and form the eccentric reducing tubular product that connects convenience, leakproofness well and have the filter action, be particularly useful for adopting the PVC pipe connection that sprays or drip irrigation the mode and irrigate the soil, pipe blockage rate when can effectively reduce the sprinkling irrigation or drip irrigation.

Description

PVC pipe for land irrigation

Technical Field

The utility model belongs to feedwater PVC tubular product field especially relates to a PVC tubular product for land irrigation.

Background

The PVC pipe is a plastic pipe formed by extrusion or injection molding by taking polyvinyl chloride (PVC) resin as a main raw material and adding a proper amount of auxiliary materials such as a stabilizer, a lubricant, a filler, a toner and the like. The PVC pipe has the advantages of light weight, excellent physical and chemical properties, chemical corrosion resistance, high impact strength, small fluid resistance, aging resistance and long service life, and is a common material for water supply and drainage in multiple fields of buildings, agriculture and the like. The PVC pipe mainly used in the field of agricultural irrigation is a PVC-U pipe, and compared with the common irrigation, the PVC spraying irrigation system can save water by 50-70 percent and improve the crop yield by 30-80 percent. In the actual use process, PVC-U pipes are often required to be connected, the pipes are required to be connected, certain sealing performance is guaranteed, and the PVC-U connecting modes commonly used at present comprise hot melt connection, welding and the like. However, in the actual use process, due to the influence of factors such as welding process, welding site and the like, some welding defects such as misalignment, incomplete fusion and the like can be generated; the equipment cost of the hot melt connection is high, and the equipment volume is large, which limits the application of the hot melt connection to a certain extent. Therefore, it is necessary to develop a method for abandoning welding or hot-melt connection, which is simple and convenient to connect pipes, realizes the connection between pipes and ensures certain sealing property.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a connection mode is simple and convenient, the leakproofness is good to above-mentioned not enough or the defect that welding or hot melt exist among the agricultural PVC tubular product connection mode among the above-mentioned prior art, and has the eccentric reducing tubular product of PVC of the suitable soil water conservation irrigation of filtering action.

In order to achieve the purpose, the utility model adopts the following technical scheme to realize.

A PVC pipe for land irrigation is an eccentric reducing pipe and comprises a small-opening pipe and a large-opening pipe which are integrally injection-molded, wherein an external thread is arranged at one end of the small-opening pipe, which is far away from the large-opening pipe, and is used for being connected with a water source output port; the opening part which is left on the large-mouth pipe and extends out of the neck part of the bottleneck filter box is provided with internal threads which are used for being fixedly connected with the neck part of the filter box with external threads in the middle.

Further, the small-mouth pipe is provided with a connecting portion close to the external thread of the end portion, the connecting portion comprises a sealing washer and a connecting plate, the sealing washer and the connecting plate are sleeved on the small-mouth pipe, the connecting plate and the small-mouth pipe are integrally formed in an injection molding mode, and the sealing washer is tightly attached to the connecting plate.

Furthermore, a plurality of flow deflectors are arranged on the inner wall of the lower part of the large-opening pipe close to the small-opening pipe.

Furthermore, the guide vanes and the lower side wall of the large-opening pipe form an included angle which is not larger than 90 degrees along the horizontal direction of water flow, and the angle is gradually increased along with the increase of the distance from the small-opening pipe when each guide vane is arranged.

Furthermore, a vertical anti-slip rib is arranged on the outer circumferential surface of the sealing cover.

Furthermore, a conical filter screen, a first plane filter screen and a second plane filter screen are arranged in the filter box, the meshes of the conical filter screen are larger than those of the first plane filter screen, and the meshes of the first plane filter screen are larger than those of the second plane filter screen.

Further, the body of wide mouth pipe is equipped with epoxy layer, PVC basic unit, EVA layer, UV coating from inside to outside in proper order.

Compared with the prior art, the beneficial effects of the utility model are that: through set up filtration, both ends in tubular product inside and set up the seal structure formation of easily connecting and connect convenient, the leakproofness is good and have the eccentric reducing tubular product of filter action, is particularly useful for adopting the PVC pipe connection that sprays or drip irrigation the mode and irrigate the soil, pipe blockage rate when can effectively reducing the sprinkling irrigation or drip irrigation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of a cross section of the wide mouth pipe in fig. 1.

Reference numerals: 1-small-mouth pipe, 12-connecting plate, 13-sealing gasket, 2-large-mouth pipe, 201-epoxy resin layer, 202-PVC base layer, 203-EVC layer, 204-UV coating, 21-flow deflector, 22-water outlet, 3-filter, 31-sealing cover, 311-antiskid rib, 32-neck of filter box, 33-filter box, 331-conical filter screen, 332-first plane filter screen, 333-second plane filter screen and 4-drip irrigation dry pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

As shown in fig. 1-2, a PVC pipe for land irrigation, which is an eccentric reducing pipe, includes a small-mouth pipe 1 and a large-mouth pipe 2 that are integrally injection-molded, wherein an external thread is provided at an end of the small-mouth pipe 1 away from the large-mouth pipe 2 for connecting with a water source output pipe, a water outlet 22 is provided at a side surface of the large-mouth pipe 2 away from the small-mouth pipe 1, the water outlet 22 is provided with an internal thread for connecting with a drip irrigation main pipe 4 whose end is provided with an external thread, a detachable filter 3 is further provided inside an end of the large-mouth pipe 2 away from the small-mouth pipe 1, the filter 3 includes a filter box 33, a filter box neck 32 that is integrally connected with the filter box 33 and can extend out of the large-mouth pipe 2, and a sealing cover 31, the sealing cover 31 is provided with an internal thread, and is screwed with the filter box; an internal thread is arranged at an opening part which is reserved on the large-opening pipe 2 and extends out of the neck part 32 of the filter box, and the large-opening pipe is used for being fixedly connected with the neck part 32 of the filter box with an external thread in the middle through a thread.

Further, be close to tip external screw thread department on the small-bore pipe 1 and be equipped with connecting portion, connecting portion establish seal ring 13 and connecting plate 12 on the small-bore pipe 1 including the cover, connecting plate 12 and the integrative injection moulding of small-bore pipe 1, seal ring 13 closely laminates with connecting plate 12.

A plurality of flow deflectors 21 are arranged on the inner wall of the lower part of the large-opening pipe 2 and close to the small-opening pipe; the guide vanes 21 and the lower side wall of the large-opening pipe 2 form an included angle which is not more than 90 degrees along the horizontal direction of water flow, and each guide vane 21 is arranged to gradually increase the angle along with the increase of the distance from the small-opening pipe 1; the outer circumferential surface of the sealing cover 31 is provided with a vertical anti-slip rib 311.

The filter box 33 is internally provided with a conical filter screen 331, a first plane filter screen 332 and a second plane filter screen 333, the mesh number of the conical filter screen 331 is 20 meshes, the mesh number of the first plane filter screen is 30 meshes, the mesh number of the second plane filter screen is 50 meshes, the conical filter screen is a conical stainless steel net, the first plane filter screen is a stainless steel net, and the first plane filter screen is a nylon net.

The tube body of the large-opening tube is sequentially provided with an epoxy resin layer, a PVC base layer, an EVA layer and a UV coating from inside to outside; the thickness of the pipe body of the large-opening pipe is 3-4mm, the thickness of the epoxy resin layer is not more than 0.4mm, the thickness of the EVA layer is not more than 0.3mm, the UV coating is made of a thermosetting acrylic resin material doped with an ultraviolet resistant agent, and the thickness of the UV coating is not more than 0.3 mm.

In the description of the present invention, the directions indicated by the terms "upper", "lower", "left" and "right" are based on the directions shown in the drawings, and are only for convenience of description of the present invention, but do not require that the present invention must be operated in a specific direction, and therefore, should not be construed as limiting the present invention. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a PVC tubular product for land irrigation, this tubular product are eccentric reducing tubular product, including integrative injection moulding's small-bore pipe, wide-bore pipe, its characterized in that: the end of the small-opening pipe, which is far away from the large-opening pipe, is provided with an external thread, the side surface of the end of the large-opening pipe, which is far away from the small-opening pipe, is provided with a water outlet, the water outlet is provided with an internal thread and is connected with a drip irrigation main pipe, the end part of the drip irrigation main pipe is provided with the external thread, a detachable filter is also arranged inside the end of the large-opening pipe, which is far away from the small-opening pipe, the filter comprises a filter box, a filter box neck part and a sealing cover, the filter box neck part is integrally connected with the filter box and can; the opening part which is left on the large-mouth pipe and extends out of the neck part of the bottleneck filter box is provided with internal threads which are used for being fixedly connected with the neck part of the filter box with external threads in the middle.

2. PVC pipe for land irrigation according to claim 1, characterized in that: the connecting part is arranged on the small-mouth pipe close to the external thread of the end part and comprises a sealing washer and a connecting plate which are sleeved on the small-mouth pipe, the connecting plate and the small-mouth pipe are integrally formed by injection molding, and the sealing washer is tightly attached to the connecting plate.

3. PVC pipe for land irrigation according to claim 1, characterized in that: and a plurality of flow deflectors are arranged on the inner wall of the lower part of the large-opening pipe close to the small-opening pipe.

4. PVC pipe for land irrigation according to claim 3, characterized in that: the guide vanes and the lower side wall of the large-opening pipe form an included angle not larger than 90 degrees along the horizontal direction of water flow, and the angle is gradually increased along with the increase of the distance from the small-opening pipe when each guide vane is arranged.

5. PVC pipe for land irrigation according to claim 1, characterized in that: and vertical anti-skidding ribs are arranged on the outer circumferential surface of the sealing cover.

6. PVC pipe for land irrigation according to claim 1, characterized in that: the filter box is internally provided with a conical filter screen, a first plane filter screen and a second plane filter screen, wherein the meshes of the conical filter screen are larger than those of the first plane filter screen, and the meshes of the first plane filter screen are larger than those of the second plane filter screen.

7. PVC pipe for land irrigation according to claim 1, characterized in that: the body of wide mouth pipe is equipped with epoxy layer, PVC basic unit, EVA layer, UV coating from inside to outside in proper order.