CN210069225U

CN210069225U - Glass fiber reinforced plastic pipeline connecting structure capable of preventing pipe from cracking

Info

Publication number: CN210069225U
Application number: CN201920725839.XU
Authority: CN
Inventors: 王东辉; 娄文举; 任重远
Original assignee: Changzhou Tianchang Pipeline System Co Ltd
Current assignee: Changzhou Tianchang Pipeline System Co Ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-02-14
Anticipated expiration: 2029-05-20

Abstract

The utility model relates to a FRP pipe says technical field, especially relates to a prevent FRP pipe says connection structure that pipe splits, including first FRP pipe way, second FRP pipe way and pipeline intermediate head, set for the front end suit of pipeline intermediate head at the tip of first FRP pipe way, the rear end suit of pipeline intermediate head is at the tip of second FRP pipe way. The utility model discloses a prevent FRP pipe way connection structure that pipe splits adopts the pipeline intermediate head to couple together two FRP pipe ways, and two FRP pipe ways have changed traditional direct rigid connection for have mobilizable space between two FRP pipe ways, satisfy FRP pipe way expend with heat and contract with cold's operational environment, prolong FRP pipe way's life.

Description

Glass fiber reinforced plastic pipeline connecting structure capable of preventing pipe from cracking

Technical Field

The utility model relates to a FRP pipe says technical field, especially relates to a prevent FRP pipe says connection structure that pipe splits.

Background

The glass fiber reinforced plastic is a fiber reinforced composite plastic and is widely used in various industries, and the pipe fitting made of the glass fiber reinforced plastic has the excellent characteristics of no toxicity, no rust, no odor, no secondary pollution to water quality and no corrosion resistance, and can be used for a long time in the range of-50 ℃ to 80 ℃, so the glass fiber reinforced plastic is widely applied to the water supply and drainage industry; the joints of the existing glass fiber reinforced plastic pipeline are all rigid connections of flange joints, and the glass fiber reinforced plastic pipeline can expand to a certain degree in a high-temperature environment, and is easy to break, so that the use is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the technical problem that the FRP pipe is easy to break in the high temperature environment among the prior art, the utility model provides a prevent FRP pipe connection structure that the pipe splits.

The utility model provides a technical scheme that its technical problem adopted is: a glass fiber reinforced plastic pipeline connecting structure for preventing pipe cracking comprises a first glass fiber reinforced plastic pipeline, a second glass fiber reinforced plastic pipeline and a pipeline intermediate joint, wherein the front end of the pipeline intermediate joint is arranged at the end part of the first glass fiber reinforced plastic pipeline in a sleeved mode, the rear end of the pipeline intermediate joint is arranged at the end part of the second glass fiber reinforced plastic pipeline in a sleeved mode, the inner ring of the pipeline intermediate joint is divided into a first cylindrical part, a second cylindrical part and an intermediate conical surface part, the inner diameter D3 of the intermediate conical surface part is gradually increased from front to back, the inner diameter of the second cylindrical part is D2, the maximum inner diameters of D2 and the intermediate conical surface part are equal, a convex clamping platform is arranged on the periphery of the end part of the first glass fiber reinforced plastic pipeline, the front part of the clamping platform on the first glass fiber reinforced plastic pipeline is a first glass fiber reinforced plastic pipeline sleeved part, the first glass fiber reinforced plastic pipeline sleeved part is sleeved in the first cylindrical part, the clamping platform is abutted against the front end of the pipeline intermediate joint, the outer diameter D, the outer diameter of the second glass fiber reinforced plastic pipeline is in clearance fit with the inner diameter of the second cylindrical part, a groove is formed in the periphery of the end part of the second glass fiber reinforced plastic pipeline, and a sealing ring is arranged in the groove.

In order to facilitate the installation of the second glass fiber reinforced plastic pipeline, the rear end of the second cylindrical part is also provided with a flaring section, and the inner diameter of the flaring section is gradually increased from front to back.

In order to prevent the abrasion of the end part of the first glass fiber reinforced plastic pipeline, a closing-in section is further arranged between the first cylindrical part and the middle conical surface part, and the inner diameter of the closing-in section is gradually reduced from front to back.

The beneficial effects of the utility model are that, the utility model discloses a prevent FRP pipe way connection structure that the pipe splits adopts the pipeline intermediate head to couple together two FRP pipe ways, and two FRP pipe ways have changed traditional direct rigid connection for have mobilizable space between two FRP pipe ways, satisfy the operational environment of FRP pipe way expend with heat and contract with cold, prolong FRP pipe way's life.

Drawings

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

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

In the figure: 1. the sealing device comprises a first glass fiber reinforced plastic pipeline, 11, a clamping table, 12, a first glass fiber reinforced plastic pipeline sleeving part, 2, a second glass fiber reinforced plastic pipeline, 21, a groove, 3, a pipeline intermediate joint, 31, a first cylindrical part, 32, a second cylindrical part, 33, an intermediate conical surface part, 34, a closing section, 35, a flaring section, 4 and a sealing ring.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in FIG. 1, the best embodiment of the present invention is a FRP pipe connecting structure for preventing pipe crack, comprising a first FRP pipe 1, a second FRP pipe 2 and a pipe intermediate joint 3, wherein the front end of the pipe intermediate joint 3 is set to be sleeved on the end of the first FRP pipe 1, the rear end of the pipe intermediate joint 3 is sleeved on the end of the second FRP pipe 2, the inner ring of the pipe intermediate joint 3 is divided into a first cylindrical part 31, a second cylindrical part 32 and an intermediate conical part 33, the inner diameter D3 of the intermediate conical part 33 is gradually increased from the front to the rear, the inner diameter of the second cylindrical part 32 is D2, the maximum inner diameters of D2 and the intermediate conical part 33 are equal, the outer periphery of the end of the first FRP pipe 1 is provided with a convex clamping platform 11, the front part of the clamping platform 11 on the first FRP pipe 1 is a first FRP pipe sleeved part 12, the first FRP pipe sleeved part 12 is sleeved in the first cylindrical part 31, the pallet 11 leans on the front end of pipeline intermediate head 3, the external diameter and the 31 internal diameters of first cylinder portion of first FRP pipe way cup joint portion 12 cooperate, external diameter D1 of first FRP pipe way cup joint portion 12 is greater than the minimum internal diameter of middle conical surface portion 33, the external diameter and the internal diameter clearance fit of second cylinder portion 32 of second FRP pipe way 2, two ways recess 21 has been seted up to the tip periphery of second FRP pipe way 2, all be provided with sealing washer 4 in the recess 21. In order to ensure the sealing between the second glass fiber reinforced plastic pipeline 2 and the pipeline intermediate joint 3, the outer diameter of the sealing ring 4 is slightly larger than D2. The rear end of the second cylindrical portion 32 is further provided with a flared section 35, and the inner diameter of the flared section 35 gradually increases from the front to the rear. A closing section 34 is further arranged between the first cylindrical portion 31 and the middle conical surface portion 33, and the inner diameter of the closing section 34 is gradually reduced from front to back.

When the glass fiber reinforced plastic pipeline expanding device is used, the first glass fiber reinforced plastic pipeline sleeving part 12 is sleeved in the first cylindrical part 31 of the pipeline intermediate joint 3, the clamping table 11 abuts against the front end of the pipeline intermediate joint 3, the second glass fiber reinforced plastic pipeline 2 is inserted from the flaring section 35 of the pipeline intermediate joint 3, and the end part of the second glass fiber reinforced plastic pipeline 2 is hermetically connected with the second cylindrical part 32 after entering the second cylindrical part 32. When the working environment of expansion with heat and contraction with cold is met, the end part of the second glass fiber reinforced plastic pipeline 2 and the pipeline intermediate joint 3 can move relatively, the deformation quantity of the glass fiber reinforced plastic pipeline is met, the glass fiber reinforced plastic pipeline is prevented from cracking or breaking, and the service life of the glass fiber reinforced plastic pipeline is prolonged.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made 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. The utility model provides a prevent FRP pipe way connection structure that pipe splits which characterized in that: the pipe joint comprises a first glass fiber reinforced plastic pipeline (1), a second glass fiber reinforced plastic pipeline (2) and a pipeline intermediate joint (3), wherein the front end of the pipeline intermediate joint (3) is arranged at the end part of the first glass fiber reinforced plastic pipeline (1) in a sleeved mode, the rear end of the pipeline intermediate joint (3) is arranged at the end part of the second glass fiber reinforced plastic pipeline (2) in a sleeved mode, the inner ring of the pipeline intermediate joint (3) is divided into a first cylindrical part (31), a second cylindrical part (32) and an intermediate conical surface part (33), the inner diameter D3 of the intermediate conical surface part (33) is gradually increased from front to back, the inner diameter of the second cylindrical part (32) is D2, the maximum inner diameters of D2 and the intermediate conical surface part (33) are equal, a convex clamping table (11) is arranged on the periphery of the end part of the first glass fiber reinforced plastic pipeline (1), the front part of the clamping table (11) on the first glass fiber reinforced plastic pipeline (1) is a first glass fiber reinforced plastic pipeline part (12), and the first glass fiber reinforced plastic pipeline, the clamping table (11) is abutted against the front end of the pipeline intermediate joint (3), the outer diameter D1 of the first glass fiber reinforced plastic pipeline sleeving part (12) is larger than the minimum inner diameter of the middle conical surface part (33), the outer diameter of the second glass fiber reinforced plastic pipeline (2) is in clearance fit with the inner diameter of the second cylindrical part (32), a groove (21) is formed in the periphery of the end part of the second glass fiber reinforced plastic pipeline (2), and a sealing ring (4) is arranged in the groove (21).

2. The glass reinforced plastic pipe connection structure for preventing pipe cracking according to claim 1, wherein: the rear end of the second cylindrical part (32) is also provided with a flaring section (35), and the inner diameter of the flaring section (35) is gradually increased from front to back.

3. The glass reinforced plastic pipe connection structure for preventing pipe cracking according to claim 1, wherein: a closing-in section (34) is further arranged between the first cylindrical part (31) and the middle conical surface part (33), and the inner diameter of the closing-in section (34) is gradually reduced from front to back.