CN218671099U

CN218671099U - Connection structure and modified titanium alloy plastic pipe

Info

Publication number: CN218671099U
Application number: CN202222792505.9U
Authority: CN
Inventors: 戎兰平; 薛羽辛
Original assignee: Zhenjiang Jingyu Pipeline Equipment Co ltd
Current assignee: Zhenjiang Jingyu Pipeline Equipment Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-03-21
Anticipated expiration: 2032-10-24

Abstract

The utility model discloses a connection structure and modified titanium alloy plastic tubing relates to technical field. The utility model comprises a fixing unit, which comprises a convex part and a first fixing groove arranged at one end of the pipeline, an inserting hole and a second fixing groove arranged at the other end of the pipeline, and a limiting plate sleeved outside the pipeline, wherein the convex part is matched and clamped in the inserting hole; the sealing unit comprises a first sealing ring, a second sealing ring and a packing layer, the first sealing ring is located on the inner side of the insertion hole, the second sealing ring is located between the limiting plate and the pipeline, and the packing layer is located in a first fixing groove and a second fixing groove. The utility model discloses beneficial effect: the adjacent plastic pipelines are connected and fixed through the matched clamping of the protruding piece and the insertion opening, the matched clamping of the first fixing ring and the first fixing groove and the bolt fixing of the upper limiting plate and the lower limiting plate; through the design of first sealing washer, second sealing washer and packing layer, guaranteed the leak protection of pipeline junction.

Description

Connection structure and modified titanium alloy plastic pipe

Technical Field

The utility model relates to the technical field of pipelines, especially, relate to a connection structure and modified titanium alloy plastic tubing.

Background

The plastic pipe is a generic name of a pipe made of a plastic material, and generally uses a polymer synthetic resin, i.e., polyester, as a raw material, and a stabilizer, a lubricant, a plasticizer, etc. are added, and the plastic pipe has the advantages of light weight, sanitation, safety, long service life, safety, and convenience, and is widely used, and the types of the plastic pipe include a polyethylene Pipe (PE), a Polypropylene Pipe (PPR), etc.

Traditional polymer plastic conduit has inside easy rivers to corrode in the use, and the outer wall is easily by the oxidation, and the totality corrosion protection nature is poor, and then leads to the short problem of life, and there are fixed insecure and sealed risks such as leaking in the pipe connection department simultaneously, causes the waste of resource easily, is not convenient for promote and use.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems occurring in the prior art.

Therefore, the utility model discloses a problem that will solve lies in how to avoid the pipe connection department to have the risk of fixed insecure and sealed leakage.

In order to solve the technical problem, the utility model provides a following technical scheme: a connecting structure includes a fixing unit and a sealing unit; the fixing unit comprises a protruding piece and a first fixing groove which are arranged at one end of the pipeline, an inserting port and a second fixing groove which are arranged at the other end of the pipeline, and a limiting plate which is sleeved outside the pipeline, wherein the protruding piece is clamped in the inserting port in a matching mode; the sealing unit comprises a first sealing ring, a second sealing ring and a packing layer, the first sealing ring is located on the inner side of the insertion hole, the second sealing ring is located between the limiting plate and the pipeline, and the packing layer is located in a first fixing groove and a second fixing groove.

As an optimized scheme of the connection structure of the present invention, wherein: the protruding piece is round table-shaped, the diameter of the bottom surface of the protruding piece is smaller than that of the inner wall of the insertion opening, and the diameter of the table top of the protruding piece is equal to that of the inner side of the first sealing ring in a loose state.

As an optimized scheme of the connection structure of the present invention, wherein: the limiting plate comprises arc-shaped plates which are symmetrical up and down and connected through bolts, and the diameter of the inner side of the limiting plate is the same as that of the outer wall of the pipeline.

As an optimized scheme of the connection structure of the present invention, wherein: a first fixing ring and a second fixing ring are symmetrically arranged on the opposite inner sides of the limiting plates; the first fixing ring is clamped in the first fixing groove in a matched manner and is in contact with the packing layer; the second fixing ring is matched and clamped in the second fixing groove and is in contact with the packing layer.

As an optimized scheme of the connection structure of the present invention, wherein: a sealing groove is formed between the first fixing ring and the second fixing ring.

As an optimized scheme of the connection structure of the present invention, wherein: the first sealing ring and the second sealing ring are O-shaped rubber sealing rings.

As an optimized scheme of the connection structure of the present invention, wherein: the second sealing ring is located in the sealing groove, and the width of the second sealing ring is equal to the distance between the first fixing ring and the second fixing ring.

The utility model has the advantages that:

the adjacent plastic pipelines are connected and fixed through the matched clamping of the protruding piece and the insertion opening, the matched clamping of the first fixing ring and the first fixing groove and the bolt fixing of the upper limiting plate and the lower limiting plate; through the design of first sealing washer, second sealing washer and packing layer, guaranteed the leak protection of pipeline junction.

The utility model discloses another problem that will solve lies in how to prevent the easy problem of corroding of plastic conduit body inside and outside wall.

In order to solve the technical problem, the utility model discloses still provide following technical scheme: the utility model provides a modified titanium alloy plastic tubing, includes foretell connection structure, still includes the body unit, is located between the protruding end of pipeline and the insertion end, it includes the plastic tubing body, this internal wall side of plastic tubing and outer wall side are provided with titanium alloy layer and waterproof layer respectively.

As an optimized scheme of the modified titanium alloy plastic pipe of the utility model, wherein: the plastic pipe body is internally provided with a reticular reinforcing member.

As an optimized scheme of the modified titanium alloy plastic pipe of the utility model, wherein: the titanium alloy layer is made of titanium alloy processed by a modification technology, and a plurality of circular arc-shaped protruding structures are arranged on the titanium alloy layer close to the plastic pipe body.

The utility model discloses another beneficial effect does:

the corrosion resistance and the wear resistance of the inner wall of the original plastic pipe body are ensured by introducing the modified titanium alloy layer; the corrosion resistance of the outer wall of the original plastic pipe body is ensured by introducing the waterproof layer; the titanium alloy layer is provided with a plurality of arc-shaped protruding structures close to the plastic pipe body, so that impact caused by pipeline fluid is relieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic view of the overall structure of the connection structure of the present invention;

FIG. 2 is an exploded view of the components of the connection structure of the present invention;

fig. 3 is a schematic diagram of a limiting plate structure of the connection structure of the present invention;

fig. 4 is a fixed state cross-sectional view of the connection structure of the present invention;

FIG. 5 is an enlarged view of FIG. 4 at A;

fig. 6 is a sectional view of a tube body unit of the modified titanium alloy plastic tube according to the present invention;

FIG. 7 is an enlarged view of FIG. 6 at B;

fig. 8 is a schematic view of a reinforcing member of the modified titanium alloy plastic pipe of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 5, in order to provide a first embodiment of the present invention, the embodiment provides a connection structure, including a fixing unit 100, including a protrusion 101 and a first fixing groove 102, which are disposed at one end of a pipeline G, an insertion hole 103 and a second fixing groove 104, which are disposed at the other end of the pipeline G, and a limiting plate 105, which is sleeved outside the pipeline G, wherein the protrusion 101 is engaged and clamped in the insertion hole 103; the sealing unit 200 includes a first sealing ring 201, a second sealing ring 202, and a filler layer 203, the first sealing ring 201 is located inside the insertion port 103, the second sealing ring 202 is located between the stopper plate 105 and the pipe G, and the filler layer 203 is located in the first fixing groove 102 and the second fixing groove 104.

The boss 101 is in the shape of a circular truncated cone, the diameter of the bottom surface of the boss is smaller than the diameter of the inner wall of the insertion port 103, and the diameter of the table top of the boss is equal to the diameter of the inner side of the first seal ring 201 in a relaxed state.

The limiting plate 105 comprises arc plates which are symmetrical up and down and is connected through bolts, and the diameter of the inner side of the limiting plate 105 is the same as that of the outer wall of the pipeline G.

A first fixing ring 105a and a second fixing ring 105b are symmetrically arranged on the opposite inner sides of the limiting plate 105; the first fixing ring 105a is matched and clamped in the first fixing groove 102 and contacts with the filler layer 203; the second fixing ring 105b is fittingly engaged in the second fixing groove 104 and contacts the packing layer 203.

A seal groove 105c is formed between the first and

second fixing rings

105a and 105 b.

Here, the fixation is divided into three aspects:

1. when the pipe is not connected, and the first seal ring 201 is in a loose state at this time, the diameter of the table top of the protrusion 101 is equal to the diameter of the inner side of the first seal ring 201 at this time, and as the protrusion 101 enters the insertion opening 103, the diameter of the bottom surface of the circular truncated cone is larger, that is, the first seal ring 201 is more squeezed, and after the pipe is completely inserted, the first seal ring 201 is correspondingly changed into a shape of an inverted circular truncated cone, and the elasticity of the first seal ring 201 is equivalent to the first layer for fixation.

2. When the protrusion 101 completely enters the insertion hole 103, the second seal ring 202 is installed on the connected pipeline G, symmetry along the butt joint is ensured, the first fixing ring 105a and the second fixing ring 105b of the upper and lower limiting plates 105 are respectively clamped into the first fixing groove 102 and the second fixing groove 104, and the bolt and nut are installed on the upper and lower limiting plates 105, so that the second layer fixation can be completed.

3. Since the first fixing ring 105a and the second fixing ring 105b are respectively engaged into the first fixing groove 102 and the second fixing groove 104, it can be considered as auxiliary fixing in the axial direction of the pipe.

Example 2

Referring to fig. 4 to 5, a second embodiment of the present invention is different from the first embodiment in that: the sealing unit 200 includes a first sealing ring 201, a second sealing ring 202, and a filler layer 203, the first sealing ring 201 is located inside the insertion port 103, the second sealing ring 202 is located between the stopper plate 105 and the pipe G, and the filler layer 203 is located in the first fixing groove 102 and the second fixing groove 104.

The first seal ring 201 and the second seal ring 202 are both O-shaped rubber seal rings.

The second seal ring 202 is located in the seal groove 105c and has a width equal to the distance between the first fixing ring 105a and the second fixing ring 105 b.

The first sealing ring 201 and the second sealing ring 202 are both O-shaped rubber sealing rings, and therefore both have certain elasticity or compressibility.

The sealing is divided into three steps:

1. the first seal is a first seal ring 201 between the protruding part 101 and the insertion port 103, when the first seal ring 201 is not connected, the diameter of the table surface of the protruding part 101 is equal to the diameter of the inner side of the first seal ring 201 at the moment when the first seal ring 201 is in a loose state, the diameter of the bottom surface of the circular truncated cone is larger as the protruding part 101 enters the insertion port 103, namely the first seal ring 201 is more extruded as the protruding part is closer to the bottom surface of the circular truncated cone, and after the first seal ring 201 is completely inserted, the first seal ring 201 is correspondingly changed into the shape of the inverted circular truncated cone, so that the first seal is realized.

2. The second seal is a second seal ring 202 located in the seal groove 105c, and along with the tight alignment of the upper and lower limiting plates 105, the second seal ring 202 is also compressed, so as to fill up the seal groove 105c, and the second seal ring 202 can block the exposed tiny slit after the protrusion 101 and the insertion port 103 are clamped, thereby ensuring the second seal after the first seal ring 201 fails.

3. The third seal is a packing layer 203 located in the first fixing groove 102 and the second fixing groove 104; along with the tight alignment of the upper limiting plate 105 and the lower limiting plate 105, the first fixing ring 105a is in matched clamping connection in the first fixing groove 102 and is in contact with the packing layer 203, and the second fixing ring 105b is in matched clamping connection in the second fixing groove 104 and is in contact with the packing layer 203, so that the third sealing after the first two sealing failures is ensured; packing layer 203 is symmetrical because if second seal 202, the fluid is flowing to both sides, so both sides are at risk of leakage; the packing seal can adopt the prior art to pack asbestos fabrics, carbon fibers, rubber, flexible graphite, engineering plastics and the like.

Example 3

Referring to fig. 6 to 8, in order to provide a third embodiment of the present invention, the third embodiment provides a modified titanium alloy plastic pipe, including the connection structure of the above embodiments, further including a pipe body unit 300, located between the protruding end and the inserting end of the pipe G, which includes a plastic pipe body 301, and the inner wall side and the outer wall side of the plastic pipe body 301 are respectively provided with a titanium alloy layer 302 and a waterproof layer 303.

A net-shaped reinforcing member 301a is provided in the plastic pipe body 301.

The protruding end and the insertion end of both ends of the body unit 300 are made of pure plastic, so that it is easier to process the outer shapes of the protruding piece 101 and the insertion port 103.

The reinforcing member 301a may be made of carbon fiber or the like, which ensures the strength of the plastic pipe body 301.

The titanium alloy layer 302 is made of titanium alloy processed by a modification technology, and a plurality of circular arc-shaped protruding structures are arranged on the titanium alloy layer close to the plastic pipe body 301.

The titanium alloy can be subjected to surface modification by the existing laser cladding technology and other technologies, and the modified titanium alloy can obtain better corrosion resistance and wear resistance, so that the titanium alloy is arranged on the plastic pipe body 301 to enhance the corrosion resistance of the inner wall of the original plastic pipe body.

In addition, the titanium alloy layer 302 is provided with a plurality of arc-shaped protruding structures close to the plastic pipe body 301, so that impact caused by pipeline fluid is relieved to a certain extent.

The waterproof layer 303 is made of epoxy resin, so that the corrosion resistance of the outer wall of the plastic pipe body can be ensured.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. A connecting structure characterized in that: comprises the steps of (a) preparing a substrate,

the fixing unit (100) comprises a protruding piece (101) and a first fixing groove (102) which are arranged at one end of the pipeline (G), an insertion opening (103) and a second fixing groove (104) which are arranged at the other end of the pipeline (G), and a limiting plate (105) which is sleeved on the outer side of the pipeline (G), wherein the protruding piece (101) is matched and clamped in the insertion opening (103);

sealing unit (200), including first sealing washer (201), second sealing washer (202) and packing layer (203), first sealing washer (201) are located inserted hole (103) inboard, second sealing washer (202) are located between limiting plate (105) and pipeline (G), packing layer (203) are located first fixed slot (102) and second fixed slot (104).

2. The connecting structure according to claim 1, wherein: the bulge piece (101) is in a circular truncated cone shape, the diameter of the bottom surface of the bulge piece is smaller than the diameter of the inner wall of the insertion opening (103), and the diameter of the table top of the bulge piece is equal to the diameter of the inner side of the first sealing ring (201) in a loose state.

3. The connecting structure according to claim 2, wherein: the limiting plate (105) comprises arc-shaped plates which are symmetrical up and down and connected through bolts, and the diameter of the inner side of the limiting plate (105) is the same as that of the outer wall of the pipeline (G).

4. The connecting structure according to claim 3, wherein: a first fixing ring (105 a) and a second fixing ring (105 b) are symmetrically arranged on the opposite inner side of the limiting plate (105);

the first fixing ring (105 a) is matched and clamped in the first fixing groove (102) and is contacted with the filler layer (203);

the second fixing ring (105 b) is matched and clamped in the second fixing groove (104) and is contacted with the filler layer (203).

5. The connecting structure according to claim 4, wherein: a sealing groove (105 c) is formed between the first fixing ring (105 a) and the second fixing ring (105 b).

6. The connecting structure according to any one of claims 1 to 5, wherein: the first sealing ring (201) and the second sealing ring (202) are both O-shaped rubber sealing rings.

7. The connecting structure according to claim 6, wherein: the second sealing ring (202) is positioned in the sealing groove (105 c), and the width of the second sealing ring is equal to the distance between the first fixing ring (105 a) and the second fixing ring (105 b).

8. A modified titanium alloy plastic pipe is characterized in that: comprising the connecting structure according to any one of claims 1 to 7, further comprising,

the pipe body unit (300) is located between the protruding end and the inserting end of the pipeline (G) and comprises a plastic pipe body (301), and a titanium alloy layer (302) and a waterproof layer (303) are arranged on the inner wall side and the outer wall side of the plastic pipe body (301) respectively.

9. A modified titanium alloy plastic tube according to claim 8, wherein: a reticular reinforcing member (301 a) is arranged in the plastic pipe body (301).

10. A modified titanium alloy plastic tube according to claim 9, wherein: the titanium alloy layer (302) is made of titanium alloy processed by a modification technology, and a plurality of circular arc-shaped protruding structures are arranged close to the plastic pipe body (301).