Hydraulic engineering plastic pipe connecting assembly

Abstract

A water conservancy project plastic pipe connecting assembly comprises a first connecting pipe and a second connecting pipe, a first flange is arranged on the outer ring of the tail end of the first connecting pipe, a first inserting hole is formed in the first connecting pipe, and a positioning flange is formed between the first inserting hole and an inner hole of the first connecting pipe; the outer ring of the tail end of the second connecting pipe is sleeved with a flange sleeve, the flange sleeve comprises an inserting part and an adjusting part which are arranged left and right in the axial direction, the left end face of the inserting part is aligned with the left end face of the second connecting pipe, the outer ring is matched with the first inserting hole, and the adjusting part is aligned with the first flange at intervals; the elastic sealing element is arranged in the first insertion hole and is positioned between the positioning flange and the left end surface of the flange sleeve; the two pipe connecting pieces are symmetrically connected outside the first connecting pipe and the second connecting pipe in an embracing manner; the left end tightly presses the first flange and the adjusting part, and the right end is clamped with the outer ring of the second connecting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a water conservancy engineering plastic pipe connection component. Background Art

[0002] Hydraulic engineering is a general term for various engineering projects built to control, utilize and protect surface and underground water resources and the environment. It is a project built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. It is also called water engineering. Water is a valuable resource that is indispensable to human production and life, but its natural state does not fully meet human needs. It is a project built to eliminate water hazards and develop and utilize water resources. According to its service objects, it is divided into flood control projects, farmland water conservancy projects, hydropower projects, waterway and port projects, water supply and drainage projects, environmental water conservancy projects, and sea reclamation projects.

[0003] In the process of water conservancy project construction, a large number of pipes are needed to divert and guide water for water transportation. Since the transportation distance is relatively long, in order to facilitate the production and installation of pipes, multiple sections are spliced ​​for assembly. At present, the connection of pipelines mostly adopts flange connection, that is, a flange is set at the connection point of two pipelines, a circle of connecting holes is set on the flange, and the flange is connected by bolts passing through the connecting holes. However, due to the existence of manufacturing errors, the centering of the connecting holes during connection is poor, which increases the difficulty of installation, and the sealing is not good, which is prone to leakage and other problems. In order to solve the sealing problem, patent document CN220957264U discloses a pipeline connection device for water conservancy projects, but the device has many parts and complex structure. For this reason, we designed a pipeline connector with good sealing, simple structure, and convenient mass production and promotion. Utility Model Content

[0004] In view of the problems and shortcomings in the prior art, the utility model provides a water conservancy engineering plastic pipe connection assembly.

[0005] The technical solution of this utility model is as follows:

[0006] A water conservancy engineering plastic pipe connection assembly, comprising a first connection pipe and a second connection pipe, characterized in that:

[0007] The first connecting pipe has a first flange at its outer end and a first plug hole at its inner end, and a positioning flange is formed between the first plug hole and the inner hole of the first connecting pipe.

[0008] The outer ring of the end of the second connecting pipe is sleeved with a flange sleeve, and the flange sleeve includes an inserting part and an adjusting part arranged left and right along the axial direction, the left end surface of the inserting part is aligned with the left end surface of the second connecting pipe, the outer ring is matched with the first plug hole, and the adjusting part is aligned with the first flange;

[0009] Also includes:

[0010] The elastic sealing member is arranged in the first insertion hole and is located between the positioning flange and the left end surface of the flange sleeve; in this embodiment, the elastic sealing member is an O-shaped rubber ring.

[0011] The pipe connectors, which are two in total, are symmetrically connected to the outside of the first connecting pipe and the second connecting pipe; the left end presses the first flange and the adjustment part tightly, and the right end is clamped with the outer ring of the second connecting pipe.

[0012] Directions:

[0013] The flange sleeve is sleeved on the left end of the second connecting pipe, specifically connected by interference fit, and then the plug-in part of the sleeve flange is inserted into the plug-in hole of the first connecting pipe, and then the two pipe connectors are symmetrically arranged outside the first connecting pipe and the second connecting pipe, wherein the inner ring of the positioning part of the pipe connector is sleeved outside the second connecting pipe, and the crimping part is sleeved outside the first flange and the adjustment part, and then the two pipe connectors are connected together by bolts passing through the connecting part, thereby realizing the connection between the first connecting pipe and the second connecting pipe; then the adjusting screw is screwed into the adjusting hole, and rotated clockwise so that the end face of the adjusting screw is in contact with the end face of the adjusting part, and the adjusting part is squeezed to the left, so that the sleeve flange drives the second connecting pipe connected thereto to squeeze the elastic seal to the left, thereby preventing leakage.

[0014] According to a specific embodiment, the pipe connector includes a crimping portion and a positioning portion arranged left and right along the axial direction;

[0015] The crimping portion is provided with a connecting groove whose shape matches the first flange, the cross section of the connecting groove is U-shaped, and is used to crimp the first flange and the adjustment portion, and an adjustment hole perpendicular to the end surface is provided at the right end, and an adjustment screw is provided in the adjustment hole;

[0016] The interior of the positioning part is provided with a positioning hole whose shape matches the outer ring of the second connecting pipe, and the upper and lower ends are symmetrically provided with connecting parts for embracing the outer rings of the first connecting pipe and the second connecting pipe through bolt connection.

[0017] The inner side surface of the connecting portion is vertical, and the left end thereof is vertically connected to the right end of the crimping portion. A connecting hole penetrating along the thickness direction of the connecting portion is provided thereon for connecting bolts.

[0018] In order to improve the strength of the pipe connector, a reinforcing rib is further provided at the connection between the crimping portion and the positioning portion, and is located in the middle of the outer ring of the crimping portion and the positioning portion.

[0019] In order to improve the sealing performance, a plurality of adjustment holes are arranged at intervals along the circumferential direction of the crimping portion.

[0020] Furthermore, the outer diameter of the adjustment portion is equal to the outer diameter of the first flange. The maximum diameter of the connecting groove is greater than the outer diameter of the first flange.

[0021] The beneficial effects of the utility model are:

[0022] 1) The structure is simple, easy to mass produce, and conducive to market promotion.

[0023] 2) It is only necessary to connect two symmetrically arranged pipe connectors by bolts. The installation operation is simple and convenient. By setting an adjustment hole on the crimping part of the pipe connector and setting an adjustment screw on the adjustment hole to push the sleeve flange to extrude the elastic seal, the sealing performance of the connection assembly is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of an embodiment;

[0025] Figure 2 is a cross-sectional view of a first pipe connector;

[0026] Figure 3 for Figure 1 A cross-sectional view of

[0027] Figure 4 A stereogram showing the outside view of the pipe connector;

[0028] Figure 5 A stereoscopic view of the pipe connector from the inside; DETAILED DESCRIPTION

[0029] The following will further describe the technical means adopted to achieve the predetermined inventive purpose of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0030] See also Figure 1-Figure 5 As shown, a water conservancy engineering plastic pipe connection assembly includes a first connection pipe 1 and a second connection pipe 2, characterized in that:

[0031] The first connecting pipe 1 has a first flange 11 at its outer end and a first plug hole 12 inside, and a positioning flange is formed between the first plug hole 12 and the inner hole of the first connecting pipe 1.

[0032] The outer ring of the end of the second connecting pipe 2 is sleeved with a flange sleeve 3, and the flange sleeve 3 includes an inserting portion 31 and an adjusting portion 32 arranged left and right along the axial direction. The left end surface of the inserting portion 31 is aligned with the left end surface of the second connecting pipe 2, the outer ring is matched with the first plug hole 12, and the adjusting portion 32 is aligned with the first flange 11 at intervals;

[0033] Also includes:

[0034] The elastic sealing member 4 is disposed in the first insertion hole 12 and is located between the positioning flange and the left end surface of the flange sleeve 3. In this embodiment, the elastic sealing member 4 is an O-shaped rubber ring.

[0035] The pipe connector 5 , which consists of two pieces, is symmetrically connected to the outside of the first connecting pipe 1 and the second connecting pipe 2 ; the left end presses the first flange 11 and the adjustment part 32 , and the right end is clamped to the outer ring of the second connecting pipe 2 .

[0036] Directions:

[0037] The flange sleeve 3 is sleeved on the left end of the second connecting pipe 2, specifically connected by interference fit, and then the plug-in portion 31 of the sleeve flange is inserted into the plug-in hole of the first connecting pipe 1, and then the two pipe connectors 5 are symmetrically arranged outside the first connecting pipe 1 and the second connecting pipe 2, wherein the inner circle of the positioning portion 52 of the pipe connector 5 is sleeved outside the second connecting pipe 2, and the crimping portion 51 is sleeved outside the first flange 11 and the adjustment portion 32, and then the two pipe connectors 5 are connected together by passing a bolt through the connecting portion 522, thereby realizing the connection between the first connecting pipe 1 and the second connecting pipe 2; then the adjusting screw is screwed into the adjusting hole 512, and rotated clockwise so that the end face of the adjusting screw is in contact with the end face of the adjusting portion 32, and the adjusting portion 32 is squeezed to the left, so that the sleeve flange drives the second connecting pipe 2 connected thereto to squeeze the elastic seal 4 to the left, thereby preventing leakage.

[0038] According to a specific embodiment, the pipe connector 5 includes a crimping portion 51 and a positioning portion 52 arranged left and right along the axial direction;

[0039] The crimping portion 51 is provided with a connecting groove 511 whose shape matches the first flange 11. The cross section of the connecting groove 511 is U-shaped and is used to crimp the first flange 11 and the adjustment portion 32. An adjustment hole 512 perpendicular to the end surface is provided at the right end, and an adjustment screw is provided in the adjustment hole 512.

[0040] The interior of the positioning portion 52 is provided with a positioning hole 521 whose shape matches the outer ring of the second connecting pipe 2, and the connecting portions 522 are symmetrically arranged at the upper and lower ends for embracing the outer rings of the first connecting pipe 1 and the second connecting pipe 2 through bolt connection.

[0041] The inner side surface of the connecting portion 522 is vertical, and the left end thereof is vertically connected to the right end of the crimping portion 51 . A connecting hole 523 penetrating along the thickness direction of the connecting portion 522 is provided thereon for connecting bolts.

[0042] In order to improve the strength of the pipe connector 5 , a reinforcing rib 524 is further provided at the connection between the crimping portion 51 and the positioning portion 52 , and is located in the middle of the outer circle of the crimping portion 51 and the positioning portion 52 .

[0043] In order to improve the sealing performance, a plurality of adjustment holes 512 are provided at intervals along the circumferential direction of the crimping portion 51 .

[0044] Furthermore, the outer diameter of the adjustment portion 32 is equal to the outer diameter of the first flange 11. The maximum diameter of the connection groove 511 is greater than the outer diameter of the first flange 11.

[0045] The above is a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments and examples. Various changes, equivalent substitutions, improvements, etc. made within the knowledge scope of those skilled in the art without departing from the concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A water conservancy engineering plastic pipe connection assembly, comprising a first connection pipe (1) and a second connection pipe (2), characterized in that: The first connecting pipe (1) has a first flange (11) at its outer end and a first insertion hole (12) inside, wherein a positioning flange is formed between the first insertion hole and the inner hole of the first connecting pipe (1); The outer ring of the end of the second connecting pipe (2) is sleeved with a flange sleeve (3), and the flange sleeve comprises an inserting portion (31) and an adjusting portion (32) arranged left and right along the axial direction, the left end surface of the inserting portion (31) is aligned with the left end surface of the second connecting pipe (2), the outer ring is matched with the first plug hole (12), and the adjusting portion (32) is aligned with the first flange (11) at intervals; Also includes: An elastic sealing member (4) is arranged in the first insertion hole (12) and is located between the positioning flange and the left end surface of the flange sleeve (3); The pipe connector (5) has two pieces symmetrically connected to the outside of the first connecting pipe (1) and the second connecting pipe (2), with the left end crimping the first flange (11) and the adjustment part (32), and the right end clamping the outer ring of the second connecting pipe (2).

2. The connection assembly according to claim 1, characterized in that: The pipe connector (5) comprises a crimping portion (51) and a positioning portion (52) arranged left and right along the axial direction; The crimping portion (51) is provided with a connecting groove (511) whose shape matches that of the first flange (11). The connecting groove (511) has a U-shaped cross section and is used for crimping the first flange (11) and the adjusting portion (32). An adjusting hole (512) perpendicular to the end surface is provided at the right end, and an adjusting screw is provided therein. The interior of the positioning portion (52) is provided with a positioning hole (521) whose shape matches the outer ring of the second connecting pipe (2), and connecting portions (522) are symmetrically arranged at the upper and lower ends for being connected to the outer rings of the first connecting pipe (1) and the second connecting pipe (2) by bolt connection.

3. The connection assembly according to claim 2, characterized in that: The inner side surface of the connecting portion (522) is vertical, and its left end is vertically connected to the right end of the crimping portion (51). A connecting hole (523) is provided thereon and passes through the connecting portion (522) in the thickness direction thereof, and is used for connecting bolts.

4. The connection assembly according to claim 3, characterized in that: A reinforcing rib (524) is also provided at the connection between the crimping portion (51) and the positioning portion (52), and is located in the middle of the outer circle of the crimping portion (51) and the positioning portion (52).

5. The connection assembly according to claim 2, characterized in that: A plurality of adjustment holes (512) are arranged at intervals along the circumferential direction of the crimping portion (51).

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