CN210424071U

CN210424071U - Glass fiber reinforced plastic pipeline connecting structure

Info

Publication number: CN210424071U
Application number: CN201920861663.0U
Authority: CN
Inventors: 姜文发; 褚强; 王清方
Original assignee: Wujiang City Zhaoshun Frp Products Co ltd
Current assignee: Suzhou Xugong New Material Technology Co.,Ltd.
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-04-28
Anticipated expiration: 2029-06-10

Abstract

The utility model relates to a glass fiber reinforced plastic pipeline connecting structure, which comprises a pipe body, a connecting part arranged at the port of the pipe body and a pressure sensing part; the connecting part is provided with a connecting surface; the edge of the connecting surface and the side surface of the connecting part form an annular step part, and the annular step part is provided with a water-absorbing expansion rubber ring; the pressure sensing part is arranged between the water-swelling rubber rings of the two connecting parts. The utility model arranges the water-absorbing expansion rubber ring on the connecting surface of the pipeline connecting part; the bolt is pre-expanded during assembly, so that the bolt can be locked and connected more tightly; thereby increasing the tightness and firmness of the connection of the two sections of glass fiber reinforced plastic pipelines; meanwhile, the water-swelling rubber ring can absorb the liquid leaked outwards, so that the liquid leakage to the outside is reduced; and the water-swelling rubber ring swells after absorbing water, so that gaps between the connecting parts are reduced, and leakage of liquid is reduced.

Description

Glass fiber reinforced plastic pipeline connecting structure

Technical Field

The utility model relates to a FRP pipe says the field, especially relates to a FRP pipe says connection structure.

Background

The glass fiber reinforced plastic pipeline is a non-metal pipeline which adopts glass fiber reinforced plastic (FRP, fiber reinforced plastics) as a base material; in the field of modern industrial operations, it is often necessary to transport some fluids over long distances; glass reinforced plastic pipes are favored for their excellent performance; however, during transport, liquids (including corrosive liquids) often seep out of the pipe joints due to loose or loose pipe joints; not only is unnecessary loss increased, but also leakage of some chemical liquid may cause environmental pollution; therefore, the utility model aims to solve the problem of providing a glass fiber reinforced plastic pipeline connecting structure which is tightly and stably connected.

Disclosure of Invention

The utility model overcomes the defects of the prior art and provides a glass fiber reinforced plastic pipeline connecting structure which is closely and stably connected.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a FRP pipe says connection structure which characterized in that: comprises a pipe body, a connecting part arranged at the port of the pipe body and a pressure sensing part; the connecting part is provided with a connecting surface; the edge of the connecting surface and the side surface of the connecting part form an annular step part, and the annular step part is provided with a water-absorbing expansion rubber ring; the pressure sensing part is arranged between the water-swelling rubber rings of the two connecting parts.

Preferably, a pressure display is arranged on the connecting part and is connected with the pressure sensing part through a data line.

As a preferred scheme, a plurality of bolt through holes are arranged on the connecting part; the two connecting parts are connected through bolts.

More preferably, the connecting portion is annular; the bolt through holes are uniformly distributed in the circumferential direction of the connecting part.

Preferably, the water-swelling rubber ring is made of low-swelling water-swelling rubber.

Preferably, a polymethyl methacrylate layer is arranged on the outer side of the pipe body.

As a more preferable scheme, the material of the pipe body is a glass fiber reinforced unsaturated polyester composite material.

The beneficial technical effects of the utility model mainly lie in: provides a connecting structure of glass fiber reinforced plastic pipes with tight and stable connection. The utility model arranges the water-absorbing expansion rubber ring on the connecting surface of the pipeline connecting part; the bolt is pre-expanded during assembly, so that the bolt can be locked and connected more tightly; thereby increasing the tightness and firmness of the connection of the two sections of glass fiber reinforced plastic pipelines; meanwhile, the water-swelling rubber ring can absorb the liquid leaked outwards, so that the liquid leakage to the outside is reduced; and the water-swelling rubber ring swells after absorbing water, so that gaps between the connecting parts are reduced, and leakage of liquid is reduced.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

Fig. 2 is an enlarged schematic view at a of fig. 1.

Fig. 3 is a schematic structural view of the pipe body and the connecting portion according to the preferred embodiment of the present invention.

Fig. 4 is an external view (viewed perpendicular to the joint surface) of the joint portion according to the preferred embodiment of the present invention.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings and illustrate, by way of illustration only, the basic structure of the invention, and which therefore show only the constituents relevant to the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 4, a glass fiber reinforced plastic pipe connection structure includes a pipe body 1 having a circular radial cross section, an annular connection portion 2 provided at a port of the pipe body 1, and a pressure sensing member 3.

The connecting part 2 is provided with a connecting surface 21, and the edge of the connecting surface 21 and the side surface 22 of the connecting part 2 form an annular step part 23; the annular step part 23 is provided with a water-absorbing expansion rubber ring 24 corresponding to the shape of the annular step part, the water-absorbing expansion rubber ring 24 is just sleeved on the annular step part 23, and one side surface of the water-absorbing expansion rubber ring 24 is exposed outside and is flush with the side surface 22 of the connecting part; the water-absorbing expansion rubber ring 24 adopts water-absorbing expansion rubber with low expansion rate (50-200%); the pressure sensing element 3 is arranged between the water-swellable rubber rings 24 of the two connection portions 2 when assembled; the pressure-sensing member 3 is connected to a pressure display 32 provided on the connecting portion 2 via a data line 31.

When liquid in the glass fiber reinforced plastic pipeline leaks out from between the two connecting parts 2, the leaked liquid passes through the water-absorbing expansion rubber ring 24; the water-absorbing expansion rubber ring 24 has good water-absorbing and water-retaining properties, can absorb leaked liquid and prevent the liquid from leaking into the external environment; meanwhile, the water-swelling rubber ring 24 swells after absorbing water, so that gaps among the connecting parts 2 are reduced, and liquid leakage is reduced; at the same time, the water-swelling rubber rings 24 swell after absorbing water, so that the pressure on the pressure sensing part 3 clamped between the two water-swelling rubber rings 24 is increased; the pressure sensing part 3 is a pressure sensitive element which can transmit the pressure change to the pressure display 32 through the data line 31; the pressure display 32 displays the result through data processing; the operator can judge the leakage condition of the liquid in the glass fiber reinforced plastic pipeline through the displayed data, so that corresponding measures are taken.

The connecting part 2 is also provided with 4 bolt through holes 25; the bolt through holes 25 are uniformly distributed in the circumferential direction of the connecting portion 2, ensuring stable connection.

A polymethyl methacrylate layer 4 is arranged on the outer side of the pipe body 1; the polymethyl methacrylate has good mechanical strength and wear resistance, so that the mechanical property and the friction resistance of the pipe body 1 are improved; the material of the pipe body 1 is glass fiber reinforced unsaturated polyester composite material which has good weather resistance, aging resistance and environmental protection.

During assembly: placing the two sections of pipe bodies 1, overlapping the two corresponding connecting parts 2 together, and arranging the pressure sensing part 3 between the water-absorbing expansion rubber rings 24 of the two connecting parts 2; the bolt 5 penetrates through the bolt through holes 25 of the two connecting parts 2 and is locked by a nut, so that the two sections of pipe bodies 1 are tightly connected; the water is sprayed on the exposed water-absorbing expansion rubber ring 24 to expand the water-absorbing expansion rubber, so that the connection tightness and firmness of the two sections of glass fiber reinforced plastic pipelines are improved.

In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A glass steel pipeline connection structure is characterized in that: comprises a pipe body, a connecting part arranged at the port of the pipe body and a pressure sensing part; the connecting part is provided with a connecting surface; the edge of the connecting surface and the side surface of the connecting part form an annular step part, and the annular step part is provided with a water-absorbing expansion rubber ring; the pressure sensing part is arranged between the water-swelling rubber rings of the two connecting parts.

2. The FRP pipe connection structure as defined in claim 1, wherein: the connecting part is provided with a pressure display which is connected with the pressure sensing part through a data line.

3. The FRP pipe connection structure as defined in claim 1, wherein: the connecting part is provided with a plurality of bolt through holes; the two connecting parts are connected through bolts.

4. The FRP pipe connection structure as defined in claim 3, wherein: the connecting part is annular; the bolt through holes are uniformly distributed in the circumferential direction of the connecting part.

5. The FRP pipe connection structure as defined in claim 1, wherein: the water-swelling rubber ring is made of water-swelling rubber with low swelling rate.

6. The FRP pipe connection structure as defined in claim 1, wherein: and a polymethyl methacrylate layer is arranged on the outer side of the pipe body.

7. The FRP pipe connection structure as defined in claim 6, wherein: the tube body is made of glass fiber reinforced unsaturated polyester composite material.