Plastic-lined steel pipe

Abstract

The utility model discloses a plastic-lined steel pipe, which belongs to the field of plastic-lined steel pipes and comprises a first plastic-lined steel pipe body and a second plastic-lined steel pipe body, a connecting pipe is mounted between the first plastic-lined steel pipe body and the second plastic-lined steel pipe body, and a cleaning mechanism is arranged in the connecting pipe and comprises a fixing ring. The outer wall of the fixing ring and the inner wall of the connecting pipe are fixedly installed together, one end face of the fixing ring is fixedly connected with a first connecting strip, and through the arranged cleaning mechanism, dust and impurities left in the pipeline due to long-term transportation of chemical water, waste materials, coal ash and other substances can be synchronously cleaned away when the pipeline is disassembled; according to the plastic-lined steel pipe, the pipeline can be effectively prevented from being blocked, the practicability of the plastic-lined steel pipe is effectively improved, the sealing effect of the connecting position of the plastic-lined steel pipe can be effectively improved through the arranged sealing mechanism, and the leakage phenomenon at the connecting position of the plastic-lined steel pipe is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to plastic lined steel pipe technical field, concretely relates to a plastic lined steel pipe. BACKGROUND

[0002] The plastic lined steel pipe is a kind of steel plastic composite product, and is made of steel pipe as base material, after inner and outer surface treatment, coating paint or spraying paint, and lining polyethylene or other anticorrosive paint.The plastic lined steel pipe is commonly used for transporting water, waste, fly ash and other substances.

[0003] For example, the anti-pressure plastic lined steel pipe disclosed in CN220435774U includes a plastic lined steel pipe, which comprises a plastic pipe and an outer steel pipe, the outer steel pipe is surrounded by an outer sleeve, the outer steel pipe is provided with a mounting groove, and the mounting groove is integrally formed with protective sleeves at equal intervals on the outer periphery, the protective sleeves are fixedly installed with oil pressure buffers at equal intervals on the outer periphery, and the oil pressure buffers are detachably installed with protective sleeves on one side of the top, which realizes buffering and pressure protection at the connection between the plastic pipe and the outer steel pipe, thereby improving the pressure resistance of the plastic lined steel pipe.

[0004] However, there are still some deficiencies, for example, the inner wall of the pipeline will be bonded with residues when transporting water, waste, fly ash and other substances for a long time, but the existing pipeline does not have a corresponding cleaning structure, so the dust and impurities bonded inside the pipeline need to be cleaned by first disassembling the pipeline and then using tools or cleaning robots to enter the pipeline, which cannot clean the dust and impurities inside the pipeline synchronously when disassembling. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a plastic lined steel pipe to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a plastic lined steel pipe, comprising a first plastic lined steel pipe body and a second plastic lined steel pipe body, a connecting pipe is installed between the first plastic lined steel pipe body and the second plastic lined steel pipe body, a cleaning mechanism is arranged in the connecting pipe, the cleaning mechanism comprises a fixed ring, the outer wall of the fixed ring and the inner wall of the connecting pipe are fixedly installed together, a first connecting strip is fixedly connected to one end surface of the fixed ring, a second connecting strip is fixedly connected to one side of the first connecting strip, a supporting ring is fixedly connected to one side of the second connecting strip, a flexible brush is fixedly connected to the outer wall of the supporting ring, the number of the flexible brushes is two, the two flexible brushes are symmetrically distributed in the interiors of the first plastic lined steel pipe body and the second plastic lined steel pipe body, the inner walls of the first plastic lined steel pipe body and the second plastic lined steel pipe body are in contact with the outer walls of the flexible brushes, and the flexible brushes are used for cleaning the dust and impurities bonded to the inner walls of the first plastic lined steel pipe body and the second plastic lined steel pipe body.

[0007] As a preferred implementation form, the number of the fixing rings is two, and the two fixing rings are symmetrically arranged inside the connecting pipe, with one of the fixing rings being located on the opposite side of the other fixing ring.

[0008] As a preferred implementation form, the diameter of the supporting ring is slightly smaller than the diameter of the fixing ring, and the diameter of the flexible brush is consistent with the diameter of the fixing ring.

[0009] As a preferred implementation form, the two end faces of the connecting pipe are provided with sealing mechanisms, the sealing mechanism comprises a sealing pipe, one end face of the sealing pipe is fixedly connected with one end face of the connecting pipe, and the first plastic-lined steel pipe body and the second plastic-lined steel pipe body are both provided with sealing grooves matched with the sealing pipe on the outer wall of one end thereof.

[0010] As a preferred implementation form, the outer wall of the sealing pipe is fixedly connected with a sealing ring, and the sealing ring is annular.

[0011] As a preferred implementation form, the outer wall of the first plastic-lined steel pipe body is fixedly connected with a first flange plate, the outer wall of the second plastic-lined steel pipe body is fixedly connected with a second flange plate, and the outer wall of the connecting pipe is fixedly connected with a third flange plate.

[0012] As a preferred implementation form, the number of the third flange plates is two, and the two third flange plates are symmetrically arranged on the outer wall of the connecting pipe, the first flange plate is detachably connected with one of the third flange plates through mounting bolts, and the second flange plate is detachably connected with the other third flange plate through mounting bolts.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The plastic-lined steel pipe can clean the dust and impurities left in the pipe due to long-term transportation of water, waste, fly ash and other substances when the pipe is disassembled, effectively avoids the pipe from being blocked, and effectively improves the practicality of the plastic-lined steel pipe.

[0015] 2. The plastic-lined steel pipe can effectively improve the sealing effect of the connection of the plastic-lined steel pipe and prevent leakage at the connection of the plastic-lined steel pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the structure of the utility model;

[0017] Figure 2 It is a structure diagram of the sealing groove in the utility model;

[0018] Figure 3It is the structure schematic view of the connecting pipe in the utility model.

[0019] Figure 4 It is the structure schematic view of the cleaning mechanism in the utility model.

[0020] In the drawing: 1, first plastic-lined steel pipe body; 2, connecting pipe; 3, second plastic-lined steel pipe body; 4, cleaning mechanism; 5, sealing mechanism; 6, first flange; 7, second flange; 8, third flange; 41, fixed ring; 42, first connecting strip; 43, second connecting strip; 44, support ring; 45, flexible brush; 51, sealing pipe; 52, sealing ring; 53, sealing groove. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with examples.

[0022] The following examples are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the examples can be further adjusted according to specific conditions, and simple improvement of the method of the utility model under the concept of the utility model belongs to the range required to be protected by the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a plastic-lined steel pipe, including first plastic-lined steel pipe body 1 and second plastic-lined steel pipe body 3, first plastic-lined steel pipe body 1 with second plastic-lined steel pipe body 3 between installation has connecting pipe 2, the inside of connecting pipe 2 is provided with cleaning mechanism 4;

[0024] As Figure 1 With Figure 4 As shown, cleaning mechanism 4 includes fixed ring 41, the number of fixed ring 41 is two, two fixed ring 41 is symmetrically distributed in the inside of connecting pipe 2, wherein one fixed ring 41 is located at the opposite side of another fixed ring 41, and the outer wall of fixed ring 41 is fixedly installed with the inner wall of connecting pipe 2, one end surface of fixed ring 41 is fixedly connected with first connecting strip 42, one side of first connecting strip 42 is fixedly connected with second connecting strip 43, one side of second connecting strip 43 is fixedly connected with support ring 44, the outer wall of support ring 44 is fixedly connected with flexible brush 45, the number of flexible brush 45 is two, two flexible brush 45 is symmetrically distributed in the inside of first plastic-lined steel pipe body 1 and second plastic-lined steel pipe body 3 respectively, and the inner wall of first plastic-lined steel pipe body 1 and second plastic-lined steel pipe body 3 is in contact with the outer wall of flexible brush 45, flexible brush 45 is used for cleaning dust and impurities adhered to the inner wall of first plastic-lined steel pipe body 1 and second plastic-lined steel pipe body 3, the diameter of support ring 44 is slightly smaller than the diameter of fixed ring 41, and the diameter of flexible brush 45 is consistent with the diameter of fixed ring 41.

[0025] As Figure 1 ,Figure 2 With Figure 3 As shown in the drawings, the outer wall of the first plastic-lined steel pipe body 1 is fixedly connected with a first flange plate 6, the outer wall of the second plastic-lined steel pipe body 3 is fixedly connected with a second flange plate 7, and the outer wall of the connecting pipe 2 is fixedly connected with a third flange plate 8. The number of the third flange plate 8 is two, and the two third flange plates 8 are symmetrically distributed on the outer wall of the connecting pipe 2. The first flange plate 6 is detachably connected with one of the third flange plates 8 through mounting bolts, and the second flange plate 7 is detachably connected with the other third flange plate 8 through mounting bolts. The two end faces of the connecting pipe 2 are provided with sealing mechanisms 5, and the sealing mechanism 5 comprises a sealing pipe 51, one end face of the sealing pipe 51 is fixedly connected with one end face of the connecting pipe 2, and the outer wall of one end of the first plastic-lined steel pipe body 1 and the second plastic-lined steel pipe body 3 is provided with a sealing groove 53 matched with the sealing pipe 51. The outer wall of the sealing pipe 51 is fixedly connected with a sealing ring 52, and the sealing ring 52 is annular in shape.

[0026] The first plastic-lined steel pipe body 1 and the second plastic-lined steel pipe body 3 are installed and detached through the connecting pipe 2, and the installation mode is flange connection. During the installation process, the sealing pipe 51 on the connecting pipe 2 is inserted into the sealing groove 53 formed in the first plastic-lined steel pipe body 1 and the second plastic-lined steel pipe body 3, respectively, to achieve sealed connection. The elastic effect and deformation effect of the sealing ring 52 further improve the sealing performance of the connection between the plastic-lined steel pipes, preventing leakage.

[0027] The working principle and use process of the utility model: the first plastic-lined steel pipe body 1 and the second plastic-lined steel pipe body 3 are detached by the connecting pipe 2. When the first plastic-lined steel pipe body 1 and the second plastic-lined steel pipe body 3 are detached, the first plastic-lined steel pipe body 1 and the second plastic-lined steel pipe body 3 are pulled. When the first plastic-lined steel pipe body 1 and the second plastic-lined steel pipe body 3 move, the flexible brush 45 on the outer wall of the supporting ring 44 will form a friction action. The flexible brush 45 will scrape off the dust and impurities adhered to the inner wall of the first plastic-lined steel pipe body 1 and the second plastic-lined steel pipe body 3 from the inside of the first plastic-lined steel pipe body 1 and the second plastic-lined steel pipe body 3. The residual material in the first plastic-lined steel pipe body 1 and the second plastic-lined steel pipe body 3 is cleaned to prevent pipe blockage.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principle of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic lined steel pipe comprising a first plastic lined steel pipe body (1) and a second plastic lined steel pipe body (3), characterized in that: The first plastic-lined steel pipe body (1) and the second plastic-lined steel pipe body (3) are provided with a connecting pipe (2), the inside of the connecting pipe (2) is provided with a cleaning mechanism (4), the cleaning mechanism (4) comprises a fixed ring (41), the outer wall of the fixed ring (41) is fixedly installed with the inner wall of the connecting pipe (2), one end surface of the fixed ring (41) is fixedly connected with a first connecting strip (42), one side of the first connecting strip (42) is fixedly connected with a second connecting strip (43), one side of the second connecting strip (43) is fixedly connected with a supporting ring (44), the outer wall of the supporting ring (44) is fixedly connected with a flexible brush (45), the number of the flexible brush (45) is two, two flexible brushes (45) are respectively and symmetrically distributed in the inside of the first plastic-lined steel pipe body (1) and the second plastic-lined steel pipe body (3), the inner walls of the first plastic-lined steel pipe body (1) and the second plastic-lined steel pipe body (3) are in contact with the outer walls of the flexible brushes (45), and the flexible brushes (45) are used for cleaning dust and impurities adhered to the inner walls of the first plastic-lined steel pipe body (1) and the second plastic-lined steel pipe body (3).

2. A plastic-lined steel pipe according to claim 1, characterized in that: The number of the fixed ring (41) is two, and two fixed rings (41) are symmetrically distributed in the inside of the connecting pipe (2), and one of the fixed rings (41) is located on the opposite side of the other fixed ring (41).

3. A plastic-lined steel pipe according to claim 1, characterized in that: The diameter of the supporting ring (44) is slightly smaller than the diameter of the fixed ring (41), and the diameter of the flexible brush (45) is consistent with the diameter of the fixed ring (41).

4. A plastic-lined steel pipe according to claim 1, characterized in that: Both end surfaces of the connecting pipe (2) are provided with a sealing mechanism (5), the sealing mechanism (5) comprises a sealing pipe (51), one end surface of the sealing pipe (51) is fixedly connected with one end surface of the connecting pipe (2), and sealing grooves (53) matched with the sealing pipes (51) are formed in the outer walls of one end of the first plastic-lined steel pipe body (1) and the second plastic-lined steel pipe body (3).

5. A plastic-lined steel pipe according to claim 4, characterized in that: The outer wall of the sealing pipe (51) is fixedly connected with a sealing ring (52), and the sealing ring (52) is annular.

6. A plastic-lined steel pipe according to claim 1, wherein: The outer wall of the first plastic-lined steel pipe body (1) is fixedly connected with a first flange plate (6), the outer wall of the second plastic-lined steel pipe body (3) is fixedly connected with a second flange plate (7), and the outer wall of the connecting pipe (2) is fixedly connected with a third flange plate (8).

7. A plastic-lined steel pipe according to claim 6, characterized in that: The number of the third flange plate (8) is two, two third flange plates (8) are symmetrically distributed on the outer wall of the connecting pipe (2), the first flange plate (6) is detachably connected with one of the third flange plates (8) through mounting bolts, and the second flange plate (7) is detachably connected with the other third flange plate (8) through mounting bolts.

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