CN110056727B

CN110056727B - Portable joint for double-wall corrugated pipe

Info

Publication number: CN110056727B
Application number: CN201910178535.0A
Authority: CN
Inventors: 王建华; 王征
Original assignee: Anhui Gas Bellows Co ltd
Current assignee: Anhui Gas Bellows Co ltd
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2020-11-27
Anticipated expiration: 2039-03-11
Also published as: CN110056727A

Abstract

The invention discloses a portable joint for a double-wall corrugated pipe, which has the advantages that when the joint is installed, only two parts are held and oppositely spliced, and the firmness and the sealing property can be ensured without any tool; when the connector is disassembled, only two buttons need to be held and pressed simultaneously, and then the other part is pulled out without rotation, so that the connector can be disassembled smoothly by utilizing the flexibility of the corrugated pipe even under the state that two ends of the corrugated pipe are fixed, the portability degree is obviously improved, and the connector is particularly suitable for the corrugated pipe with the diameter of 8-15 cm. In addition, the steps of holding for insertion, holding for pressing, withdrawing again and the like are in accordance with the conventional force application mode, so the operation is particularly smooth, and the time is saved.

Description

Portable joint for double-wall corrugated pipe

Technical Field

The invention relates to the technical field of corrugated pipes, in particular to a portable joint for a double-wall corrugated pipe.

Background

Double-wall corrugated pipes have been greatly popularized and applied in many industries due to their excellent performance and relatively economical cost. The joint is frequently used when the double-wall corrugated pipe is used, the joint of the traditional corrugated pipe is basically connected by adopting a threaded pipe, for example, Chinese patent document with the publication number of CN206072579U (the publication date is 2017.04.05) discloses an enhanced double-wall corrugated pipe, and particularly discloses that the double-wall corrugated pipe is composed of an interface corrugated pipe with a threaded joint and a receiving corrugated pipe, and tools such as a wrench and the like are needed when the double-wall corrugated pipe is installed or disassembled, so that time and labor are wasted; in addition, in the normal use process of the corrugated pipe after connection, two ends of the corrugated pipe are fixedly connected with equipment or a pipeline, and the joint in the middle of the corrugated pipe cannot rotate relatively, so that the disassembly work becomes more troublesome.

Disclosure of Invention

The invention aims to provide a portable joint for a double-wall corrugated pipe, which overcomes the defect that the conventional double-wall corrugated pipe joint is troublesome to connect and disassemble and provides improved places.

The invention realizes the purpose through the following technical scheme:

a portable joint for double-wall corrugated pipes comprises an inner pipe flange, an inner pipe body, an outer pipe flange and an outer pipe body, wherein one end face of the inner pipe flange is connected with a corrugated pipe, the other end face of the inner pipe flange is connected with the inner pipe body, one end face of the outer pipe flange is connected with the corrugated pipe, and the other end face of the outer pipe flange is connected with the outer pipe body;

the outer wall of the inner pipe body is provided with a protruding ring body, two opposite cavities are formed in the pipe wall of the outer pipe body, rotating shafts are mounted in the cavities, transmission gear columns are arranged on the rotating shafts, channels are formed in the inner side and the outer side of each cavity, a first gear rod is movably inserted into the channel in the inner side of each cavity, one end of each first gear rod is vertically meshed with the corresponding transmission gear column, a limiting block is arranged at the other end of each first gear rod, a spring is sleeved on each first gear rod between the limiting block and the outer pipe body, a button is movably inserted into the channel in the outer side of each cavity, a second gear rod is connected to the inner end of the button, and the second gear rods are vertically meshed with the transmission gear columns; the second gear rod and the first gear rod are parallel to each other and are respectively positioned on the upper side and the lower side of the transmission gear column;

the joint plane that the width is the same is equipped with on the top of outstanding ring body and the bottom of stopper, and the joint plane that is located outstanding ring body top equals the vertical thickness of stopper with the interval of inner tube flange, and the joint plane that is located the stopper bottom equals the vertical thickness of outstanding ring body with the interval of outer tube flange.

The further improvement lies in that the outside structure of outstanding ring body is the same with the inboard structure of stopper, and works as when the spring is in the free extension state, two the interval of stopper equals the external diameter of outstanding ring body, and the interval of stopper and outer pipe body equals the planar width of joint.

The further improvement lies in that the outer side of the protruding ring body and the inner side of the limiting block are both provided with two triangular protruding structures.

The improved structure is characterized in that a containing groove is formed in the outer side of the limiting block, the first gear rod is inserted into the containing groove, and the containing groove is used for containing the compressed spring.

The further improvement lies in that a sealing ring is embedded at the bottom end of the inner tube body.

The further improvement lies in that the inner end of the button is provided with an anti-falling clamping block.

The further improvement lies in that the inner pipe flange and the outer pipe flange are respectively provided with an annular groove on one end face, and the annular grooves are used for inserting and connecting the corrugated pipes.

The invention has the beneficial effects that: when the connector is installed, the two parts are held and oppositely spliced without any tool, so that the firmness and the sealing property can be ensured; when the connector is disassembled, only two buttons need to be held and pressed simultaneously, and then the other part is pulled out without rotation, so that the connector can be disassembled smoothly by utilizing the flexibility of the corrugated pipe even under the state that two ends of the corrugated pipe are fixed, the portability degree is obviously improved, and the connector is particularly suitable for the corrugated pipe with the diameter of 8-15 cm.

In addition, the steps of holding for insertion, holding for pressing, withdrawing again and the like are in accordance with the conventional force application mode, so the operation is particularly smooth, and the time is saved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an axial cross-sectional view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of the interior of the cavity;

FIG. 5 is a schematic structural view of the inner pipe and the outer pipe of the joint after plugging;

FIG. 6 is a schematic view of a structure of a push button pressed in a plugging state;

in the figure: 1-inner pipe flange, 2-inner pipe body, 3-outer pipe flange, 4-outer pipe body, 5-protruding ring body, 6-cavity, 7-rotating shaft, 8-transmission gear column, 9-first gear rod, 10-limiting block, 11-spring, 12-button, 13-second gear rod, 14-clamping plane, 15-accommodating groove, 16-sealing ring, 17-anti-falling clamping block and 18-annular groove.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Referring to fig. 1 to 4, a portable joint for a double-walled corrugated pipe includes an inner pipe flange 1, an inner pipe body 2, an outer pipe flange 3, and an outer pipe body 4, wherein one end surface of the inner pipe flange 1 is connected to the corrugated pipe, the other end surface is connected to the inner pipe body 2, one end surface of the outer pipe flange 3 is connected to the corrugated pipe, and the other end surface is connected to the outer pipe body 4;

the outer wall of the inner pipe body 2 is provided with a protruding ring body 5, two opposite cavities 6 are formed in the pipe wall of the outer pipe body 4, rotating shafts 7 are installed in the cavities 6, transmission gear columns 8 are arranged on the rotating shafts 7, channels are formed in the inner side and the outer side of each cavity 6, a first gear rod 9 is movably inserted in each channel in the corresponding cavity 6, one end of each first gear rod 9 is vertically meshed with the corresponding transmission gear column 8, a limiting block 10 is arranged at the other end of each first gear rod 9, a spring 11 is sleeved on each first gear rod 9 between each limiting block 10 and the outer pipe body 4, a button 12 is movably inserted in each channel in the outer side of each cavity 6, the inner end of each button 12 is connected with a second gear rod 13, and each second gear rod 13 is vertically meshed with the corresponding transmission gear; the second gear rod 13 and the first gear rod 9 are parallel to each other and are respectively positioned at the upper side and the lower side of the transmission gear column 8;

clamping planes 14 with the same width are arranged at the top end of the protruding ring body 5 and the bottom end of the limiting block 10, the distance between the clamping plane 14 at the top end of the protruding ring body 5 and the inner pipe flange 1 is equal to the longitudinal thickness of the limiting block 10, and the distance between the clamping plane 14 at the bottom end of the limiting block 10 and the outer pipe flange 3 is equal to the longitudinal thickness of the protruding ring body 5.

The outer side structure of the protruding ring body 5 is the same as the inner side structure of the limiting block 10, so that the protruding ring body and the limiting block can be more suitable for plugging. And when the spring 11 is in a free extension state, the distance between the two limit blocks 10 is equal to the outer diameter of the protruding ring body 5, and the distance between the limit blocks 10 and the outer tube body 4 is equal to the width of the clamping plane 14.

As an embodiment structure, the outer side of the protruding ring body 5 and the inner side of the limiting block 10 are both provided with two triangular protruding structures.

As an embodiment structure, the outer side of the limiting block 10 is provided with a receiving groove 15, the first gear rod 9 is inserted into the receiving groove 15, and the receiving groove 15 is used for receiving the compressed spring 11.

As an embodiment structure, the bottom end of the inner pipe body 2 is embedded with a sealing ring 16, when clamping is completed, the sealing ring 16 can tightly abut against the outer pipe flange 3, and the tightness of connection is ensured.

As an embodiment structure, the inner end of the button 12 is provided with an anti-falling latch 17, which prevents the button 12 from being directly pulled out from the outer channel, so that the second gear rod 13 and the transmission gear column 8 cannot be meshed and connected.

As an embodiment structure, an annular groove 18 is formed on one end face of each of the inner pipe flange 1 and the outer pipe flange 3, and the annular groove 18 is used for inserting and connecting the corrugated pipes.

The use principle of the invention is as follows:

when two sections bellows need the butt joint, connect outer tube flange 3 and inner tube flange 1 respectively at the end of bellows, then inside body 2 injects outer body 4, make outstanding ring body 5 outwards promote two stopper 10, first gear pole 9 moves to the outside, this moment under the transmission of transmission gear post 8, second gear pole 13 and button 12 move inwards gradually, when interior body 2 bottom contacts outer tube flange 3, spring 11 compression is accomodate to accomodating in the groove 15, stopper 10 just contacts with outer body 4 and kick-backs immediately and resumes the normal position, joint plane 14 accomplishes the joint, make interior body 2 can't take out, and formed the inside seal intercommunication between two sections bellows, the butt joint has been accomplished promptly, the state is as shown in fig. 5 this moment.

When needs are dismantled, only need press two buttons 12 simultaneously and press down, second gear pole 13 moves toward the inboard, under drive gear 8's rotation drives, first gear pole 9 moves toward the outside for two stoppers 10 move toward the outside, until stopper 10 and outer body 4 contact, button 12 can't continue to press this moment, joint plane 14 on outstanding ring body 5 and the stopper 10 staggers just, the state is as shown in figure 6 this moment, can directly take out interior body 2 this moment, accomplish the dismantlement process.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A portable joint for double-walled corrugated pipe, characterized in that: the joint comprises an inner pipe flange (1), an inner pipe body (2), an outer pipe flange (3) and an outer pipe body (4), one end face of the inner pipe flange (1) is connected with the corrugated pipe, the other end face of the inner pipe flange is connected with the inner pipe body (2), one end face of the outer pipe flange (3) is connected with the corrugated pipe, and the other end face of the outer pipe flange is connected with the outer pipe body (4);

the outer wall of the inner pipe body (2) is provided with a protruding ring body (5), the inner part of the pipe wall of the outer pipe body (4) is provided with two cavities (6) which are opposite to each other, a rotating shaft (7) is arranged in each cavity (6), a transmission gear column (8) is arranged on each rotating shaft (7), the inner side and the outer side of the cavity (6) are both provided with channels, the channel at the inner side of the cavity (6) is movably inserted with a first gear rod (9), one end of the first gear rod (9) is vertically engaged with the transmission gear column (8), the other end of the first gear rod (9) is provided with a limit block (10), a spring (11) is sleeved on the first gear rod (9) between the limiting block (10) and the outer pipe body (4), a button (12) is movably inserted in a channel at the outer side of the cavity (6), the inner end of the button (12) is connected with a second gear rod (13), and the second gear rod (13) is vertically meshed with the transmission gear column (8); the second gear rod (13) and the first gear rod (9) are parallel to each other and are respectively positioned on the upper side and the lower side of the transmission gear column (8);

clamping planes (14) with the same width are arranged at the top end of the protruding ring body (5) and the bottom end of the limiting block (10), the distance between the clamping plane (14) at the top end of the protruding ring body (5) and the inner pipe flange (1) is equal to the longitudinal thickness of the limiting block (10), and the distance between the clamping plane (14) at the bottom end of the limiting block (10) and the outer pipe flange (3) is equal to the longitudinal thickness of the protruding ring body (5).

2. A portable joint for a double-walled corrugated pipe according to claim 1, wherein: the structure of the outer side of the protruding ring body (5) is the same as the structure of the inner side of the limiting blocks (10), when the spring (11) is in a free extension state, the distance between the two limiting blocks (10) is equal to the outer diameter of the protruding ring body (5), and the distance between the limiting blocks (10) and the outer pipe body (4) is equal to the width of the clamping plane (14).

3. A portable joint for a double-walled corrugated pipe according to claim 2, wherein: the outer side of the protruding ring body (5) and the inner side of the limiting block (10) are both provided with two triangular protruding structures.

4. A portable joint for a double-walled corrugated pipe according to claim 1, wherein: the outside of stopper (10) is equipped with and accomodates groove (15), first gear pole (9) are inserted and are accomodate in groove (15), accomodate groove (15) and are used for accomodating spring (11) after the compression.

5. A portable joint for a double-walled corrugated pipe according to claim 1, wherein: and a sealing ring (16) is embedded at the bottom end of the inner pipe body (2).

6. A portable joint for a double-walled corrugated pipe according to claim 1, wherein: the inner end of the button (12) is provided with an anti-falling clamping block (17).

7. A portable joint for a double-walled corrugated pipe according to claim 1, wherein: and annular grooves (18) are formed in one end faces of the inner pipe flange (1) and the outer pipe flange (3), and the annular grooves (18) are used for inserting and connecting corrugated pipes.