CN216045889U

CN216045889U - PVC-MD alloy anti-impact double-wall corrugated pipe

Info

Publication number: CN216045889U
Application number: CN202121898043.8U
Authority: CN
Inventors: 王仕民; 杨占中; 冯庆来; 王通华; 孙艳飞; 聂学朝; 聂学丹; 宋文艳
Original assignee: Henan Jin Run Plastic Technology Co ltd
Current assignee: Henan Jin Run Plastic Technology Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-03-15
Anticipated expiration: 2031-08-13

Abstract

The utility model discloses a PVC-MD alloy anti-impact double-wall corrugated pipe, relates to a plastic pipeline and solves the technical problem that the conventional butt joint mode is very inconvenient to operate. The corrugated pipe comprises a corrugated pipe body, wherein the corrugated pipe body comprises an inner pipe body and an outer pipe body, one end of the corrugated pipe body is provided with an insertion section extending outwards, an insertion hole is formed in the insertion section, and the insertion hole is matched with the inner pipe body; the other end of the corrugated pipe body is provided with a connecting section, the tail end of the inner pipe body is provided with a flat section extending into the connecting section, an inserting groove is arranged between the connecting section and the flat section, and the inserting groove is matched with the inserting section; the connecting section is provided with a plurality of separating grooves extending along the direction of the corrugated pipe body, the thickness of the connecting section gradually increases from one end close to the corrugated pipe body to the other end, and the connecting section is screwed with a locking ring. The utility model has simple and convenient operation and reliable connection, greatly reduces the difficulty of operation and saves the cost.

Description

PVC-MD alloy anti-impact double-wall corrugated pipe

Technical Field

The utility model relates to a plastic pipeline, in particular to a PVC-MD alloy anti-impact double-wall corrugated pipe.

Background

The raw material for producing the corrugated pipe mainly takes polyvinyl chloride (PVC) resin as a main material, and proper nano metal powder additive is added into the PVC resin to obtain the corrugated pipe with good impact resistance, namely the PVC-MD impact resistant corrugated pipe. However, for some special locations, double-wall corrugated pipes are also used to protect the lines, such as fire buses in construction sites. The length of the existing double-wall corrugated pipe is fixed when the existing double-wall corrugated pipe leaves a factory, and a plurality of pipes are usually required to be butted in the use process. And when in butt joint, a special connector is needed to connect the two connectors together. However, when the connector is installed, the corrugated pipe frequently slides out of the connector or is not completely butted, so that a worker needs to carry out repeated butt joint installation, and the operation is very inconvenient. And the purchase of the connector also needs to spend certain fund, which is not beneficial to controlling the cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art, provides a PVC-MD alloy anti-impact double-wall corrugated pipe, and solves the problem that the conventional butt joint mode is very inconvenient to operate.

The PVC-MD alloy anti-impact double-wall corrugated pipe comprises a corrugated pipe body, wherein the corrugated pipe body comprises an inner pipe body and an outer pipe body, one end of the corrugated pipe body is provided with an insertion section extending outwards, an insertion hole is formed in the insertion section, and the insertion hole is matched with the inner pipe body; the other end of the corrugated pipe body is provided with a connecting section, the tail end of the inner pipe body is provided with a flat section extending into the connecting section, an inserting groove is arranged between the connecting section and the flat section, and the inserting groove is matched with the inserting section; the connecting section is provided with a plurality of separating grooves extending along the direction of the corrugated pipe body, the thickness of the connecting section gradually increases from one end close to the corrugated pipe body to the other end, and the connecting section is screwed with a locking ring.

In a further improvement, one end of the insertion section, which is close to the corrugated pipe body, is provided with a first positioning bulge.

Furthermore, a second positioning protrusion is arranged at one end, close to the corrugated pipe body, of the connecting section.

Furthermore, the outer wall of the insertion section is provided with a plurality of obliquely arranged positioning teeth, and the positioning teeth are inclined towards the corrugated pipe body.

Furthermore, the outer wall of the inserting section is provided with a plurality of raised semicircular rings, and the inner wall of the connecting section is provided with a semicircular groove matched with the semicircular rings.

Furthermore, a separation cavity is arranged between the inner pipe body and the outer pipe body, and a plurality of uniformly arranged connecting ribs are arranged in the separation cavity.

Furthermore, the bottom of the plug hole is provided with a fitting platform matched with the end face of the inner pipe body.

Advantageous effects

The utility model has the advantages that: the splicing section and the connecting section which are arranged at the two ends of the corrugated pipe realize the butt joint of the two corrugations. And the connecting section is provided with a separation groove, the thickness of the connecting section is gradually increased, and the connecting section can be effectively pressed on the inserting section through a locking ring screwed on the outer wall of the connecting section. The operation is simple and convenient, the connection is reliable, the operation difficulty is greatly reduced, and the cost is saved. The positioning teeth arranged on the insertion section can effectively avoid the problem that the corrugated pipe slides in the locking process, and the reliability of butt joint is greatly improved.

Drawings

FIG. 1 is a schematic cross-sectional view of a bellows according to the present invention;

FIG. 2 is a schematic cross-sectional view of the bellows of the present invention;

fig. 3 is a schematic view of a connection structure of two corrugated pipes according to the present invention.

Wherein: 1-corrugated pipe body, 2-inner pipe body, 3-outer pipe body, 4-splicing section, 5-splicing hole, 6-connecting section, 7-splicing groove, 8-locking ring, 9-first positioning projection, 10-second positioning projection, 11-positioning tooth, 12-semicircular ring, 13-semicircular groove, 14-separation cavity, 15-connecting rib, 16-laminating platform and 17-flattening section.

Detailed Description

The utility model is further described below with reference to examples, but not to be construed as being limited thereto, and any number of modifications which can be made by anyone within the scope of the claims are also within the scope of the claims.

Referring to fig. 1-3, the PVC-MD alloy impact-resistant double-wall corrugated pipe of the present invention includes a corrugated pipe body 1. The bellows body 1 comprises an inner body 2 and an outer body 3. One end of the corrugated pipe body 1 is provided with an insertion section 4 extending outwards, an insertion hole 5 is arranged in the insertion section 4, and the insertion hole 5 is matched with the inner pipe body 2. The plug-in hole 5 is used for plugging in the inner pipe body 2. The other end of the corrugated pipe body 1 is provided with a connecting section 6, the tail end of the inner pipe body 2 is provided with a flat section 17 extending into the connecting section 6, an inserting groove 7 is arranged between the connecting section 6 and the flat section 17, and the inserting groove 7 is matched with the inserting section 4. The inserting groove 7 is used for inserting the inserting section 4, so that the butt joint of the two corrugated pipes is realized. It should be noted that the insertion section 4 and the connection section 6 are both flat connection pipe sections. The connecting section 6 extends outwardly from the end of the outer body 3. A plurality of separating grooves extending along the direction of the corrugated pipe body 1 are arranged in the connecting section 6, the thickness of the connecting section 6 gradually increases from one end close to the corrugated pipe body 1 to the other end, and a locking ring 8 is screwed on the connecting section 6. Because the thickness of the connecting section 6 is gradually increased, when the locking ring 8 is screwed in, the connecting section 6 can continuously compress the joint of the two corrugated pipes, so that the corrugated pipes are locked, and the butt joint is completed. The operation is simple and convenient, the connection is reliable, the operation difficulty is greatly reduced, and the cost is saved.

Preferably, one end of the insertion section 4 close to the bellows body 1 is provided with a first positioning protrusion 9. When the two corrugated pipes are in butt joint, if the connecting section 6 of one corrugated pipe is propped against the connecting end of the other corrugated pipe, the two corrugated pipes are inserted in place, and locking operation can be performed at the moment, so that the problem of incomplete butt joint caused by the sliding of the corrugated pipes can be effectively solved.

Preferably, the connecting section 6 is provided with a second positioning protrusion 10 at an end thereof adjacent to the bellows body 1 for limiting the position of the locking ring and preventing the locking ring from falling off the connecting section 6.

Preferably, the outer wall of the insertion section 4 is provided with a plurality of positioning teeth 11 arranged obliquely, and the positioning teeth 11 are inclined towards the corrugated pipe body 1. Specifically, the positioning teeth 11 are disposed at an end close to the bellows body 1. Through the setting of location tooth 11, can effectually avoid the bellows problem that the gliding appears in the locking in-process, improve the reliability of butt joint greatly.

Preferably, the outer wall of the insertion section 4 is provided with a plurality of raised semicircular rings 12, and the inner wall of the connecting section 6 is provided with a semicircular groove 13 matched with the semicircular rings 12. In the locking process, the semicircular ring 12 falls into the semicircular groove 13, so that two corrugated pipes can be further positioned, and the connection reliability is improved.

Preferably, a separation cavity 14 is provided between the inner tube 2 and the outer tube 3, and a plurality of connecting ribs 15 are uniformly arranged in the separation cavity 14 to increase the strength of the bellows body 1.

Preferably, the bottom of the insertion hole 5 is provided with a fitting platform 16 matched with the end face of the inner pipe body 2, so as to ensure that the inner cavities of the two corrugated pipes are directly and completely connected after being butted.

The working principle of the utility model is as follows: the inserting section 4 of one corrugated pipe is inserted into the inserting groove of the other corrugated pipe. After the end of the connecting section 6 is tightly pressed on the first positioning bulge 9, the locking ring 8 is rotated. The locking ring 8 presses the connecting section 6 downwards in the advancing process, so that the positioning teeth 11 are tightly pressed on the connecting section 6 to position the corrugated pipe, and the phenomenon of relative sliding is avoided. With the advance of the locking ring 8, the semicircular ring 12 will be inserted into the semicircular groove 13 to further position the two corrugated pipes.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various changes and modifications without departing from the structure of the utility model, which will not affect the effect of the utility model and the practicability of the patent.

Claims

1. A PVC-MD alloy anti-impact double-wall corrugated pipe comprises a corrugated pipe body (1), wherein the corrugated pipe body (1) comprises an inner pipe body (2) and an outer pipe body (3), and is characterized in that one end of the corrugated pipe body (1) is provided with an insertion section (4) extending outwards, an insertion hole (5) is formed in the insertion section (4), and the insertion hole (5) is matched with the inner pipe body (2); the other end of the corrugated pipe body (1) is provided with a connecting section (6), the tail end of the inner pipe body (2) is provided with a flat section (17) extending into the connecting section (6), an inserting groove (7) is arranged between the connecting section (6) and the flat section (17), and the inserting groove (7) is matched with the inserting section (4); the corrugated pipe is characterized in that a plurality of separation grooves extending along the direction of the corrugated pipe body (1) are formed in the connecting section (6), the thickness of the connecting section (6) is gradually increased from one end close to the corrugated pipe body (1) to the other end, and a locking ring (8) is screwed on the connecting section (6).

2. PVC-MD alloy impact-resistant double-wall corrugated pipe according to claim 1, characterized in that the end of the plug section (4) close to the corrugated pipe body (1) is provided with a first positioning protrusion (9).

3. PVC-MD alloy impact-resistant double-walled corrugated pipe according to claim 1, characterised in that the connecting section (6) is provided with a second positioning protrusion (10) at the end close to the corrugated pipe body (1).

4. PVC-MD alloy impact-resistant double-wall corrugated pipe according to claim 1, characterized in that the outer wall of the plug section (4) is provided with a plurality of positioning teeth (11) arranged obliquely, and the positioning teeth (11) are inclined towards the corrugated pipe body (1).

5. PVC-MD alloy impact-resistant double-wall corrugated pipe according to claim 1, characterized in that the outer wall of the plug section (4) is provided with a plurality of raised semicircular rings (12), and the inner wall of the connecting section (6) is provided with semicircular grooves (13) matched with the semicircular rings (12).

6. A PVC-MD alloy impact-resistant double-walled corrugated pipe according to claim 1, characterized in that a separate chamber (14) is provided between the inner (2) and outer (3) body, said separate chamber (14) being provided with a plurality of evenly arranged connection ribs (15).

7. PVC-MD alloy impact-resistant double-wall corrugated pipe according to claim 1, characterized in that the bottom of the plug hole (5) is provided with a fitting platform (16) matching with the end face of the inner pipe body (2).