CN108560680B

CN108560680B - Composite explosion-proof drain pipe

Info

Publication number: CN108560680B
Application number: CN201810341027.5A
Authority: CN
Inventors: 金丽丽
Original assignee: Dongyang Xinyi Industrial Product Design Co ltd
Current assignee: DONGYANG XINYI INDUSTRIAL PRODUCT DESIGN Co.,Ltd.
Priority date: 2018-04-17
Filing date: 2018-04-17
Publication date: 2020-07-31
Anticipated expiration: 2038-04-17
Also published as: CN108560680A

Abstract

The invention discloses a composite explosion-proof drain pipe which comprises an outer water discharging layer, wherein the middle of the outer water discharging layer is provided with an inner pipe which is arranged in a rotary mode, the middle of the inner pipe is provided with a main water discharging channel, more than one convex part is uniformly distributed on the outer portion of the inner pipe around the inner pipe in a circle, an overflow cavity is formed between every two adjacent convex parts, and a row of pressure relief drain holes are formed in the inner pipe between every two adjacent convex parts; more than one rolling mechanism is arranged on the end face of one side of the convex part close to the outer drainage layer, and the whole inner pipe is arranged on the inner wall of the outer drainage layer in a rolling mode through more than one rolling mechanism. The invention can realize the pressure relief of the drain pipe, increase the pressure resistance of the drain pipe, and can prevent water leakage in a pressure reduction mode when leakage occurs, thereby ensuring that the drainage is not interrupted.

Description

Composite explosion-proof drain pipe

Technical Field

The invention relates to a drain pipe, in particular to a composite explosion-proof drain pipe.

Background

When the drainage pipe in the prior art drains water, if the water pressure is too high, the water pipe is easy to burst, and the water pipe is easy to damage and break due to aging after long-term use because the water pipe is made of PVC material, so that the water pipe leaks water, and the pressure relief function of the drainage pipe is very necessary;

moreover, after the water pipe outer wall broke, rivers constantly gushed out, caused the waste of a large amount of water resources, salvageed moreover and needed very long time, can not normally drain during salvageed, lead to the interrupt of water supply.

Disclosure of Invention

The invention aims to solve the technical problem of providing a composite explosion-proof drain pipe, which adopts a rotary pressure relief mode and a pressure relief drain hole to relieve pressure of a pipeline so as to prevent the pipeline from cracking, and can block water leakage and keep continuous water delivery through the pressure relief mode when an outer pipe is cracked.

The invention is realized by the following technical scheme: a composite explosion-proof drain pipe comprises an outer water discharge layer, wherein the middle of the outer water discharge layer is provided with an inner pipe which is arranged in a rotary mode, the middle of the inner pipe is provided with a main drain channel, the outer portion of the inner pipe is uniformly provided with more than one convex portion around the inner pipe in a circle, an overflow cavity is formed between every two adjacent convex portions, and a row of pressure relief drain holes are formed in the inner pipe between every two adjacent convex portions;

more than one rolling mechanism is arranged on the end face of one side of the convex part close to the outer drainage layer, and the whole inner pipe is arranged on the inner wall of the outer drainage layer in a rolling mode through more than one rolling mechanism.

According to the preferable technical scheme, the rolling mechanism comprises a fixed ball sleeve and a ball, wherein a ball cavity is formed in one side, opposite to the outer water discharge layer, of the fixed ball sleeve, the ball is embedded into the ball cavity, the ball partially extends out of the fixed ball sleeve, and the extending end of the ball is in rolling contact with the inner wall of the outer water discharge layer.

As a preferable technical scheme, the fixing ball sleeves are uniformly embedded in the end face of each convex part in a straight line shape.

As the preferred technical scheme, a self-sealing structure is arranged in the middle of each pressure relief drain hole.

As the preferred technical scheme, the self-sealing structure adopts two sealing blocks made of elastic silica gel materials, the cross sections of the two sealing blocks are both in a semicircular shape, and the spherical surfaces of the two sealing blocks are in contact sealing.

As a preferred technical scheme, the outer drainage layer and the middle inner pipe are both made of PVC materials, and the fixed ball sleeve of the rolling mechanism is made of a metal material.

The invention has the beneficial effects that: 1. the invention adopts the modes of rotary pressure relief and pressure relief drain holes to relieve the pressure of the pipeline and prevent the pipeline from being broken;

2. when the outer pipe is broken, water leakage can be blocked in a pressure reduction mode, continuous water delivery is kept, and the problem of water supply interruption caused by rush repair is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 the drawings without creative efforts.

FIG. 1 is a cross-sectional view of the present invention;

fig. 2 is an enlarged view of a in fig. 1.

The codes in the figure are respectively: the structure comprises a ball 1, an inner tube 2, a fixed ball sleeve 3, a convex part 4, a main drainage channel 5, an overflow cavity 6, a pressure relief drainage hole 7, an outer drainage layer 8 and a sealing block 11.

Detailed Description

As shown in fig. 1, the composite explosion-proof drain pipe comprises an outer water discharge layer 8, wherein an inner pipe 2 which is arranged in a rotary manner is arranged in the middle of the outer water discharge layer 8, a main drain channel 5 is arranged in the middle of the inner pipe 2, more than one convex part 4 is uniformly arranged around the inner pipe in a circle outside the inner pipe 2, an overflow cavity 6 is formed between every two adjacent convex parts 4, and a row of pressure relief drain holes 7 is arranged on the inner pipe 2 between every two adjacent convex parts 4;

more than one rolling mechanism is arranged on the end face of one side, close to the outer water discharge layer 8, of the convex part 4, the whole inner pipe is arranged on the inner wall of the outer water discharge layer 8 in a rolling mode through more than one rolling mechanism, when the drainage pressure in the main drainage channel is very high, water flow can extrude the pressure relief drainage hole to enter the overflow cavity, and pressure relief of the inner pipe is achieved; simultaneously, because whole inner tube is the roll and sets up in the middle of outer drainage layer, consequently rivers when discharging from pressure release wash port overflow, can make whole inner tube rotatory along outer drainage layer inner wall, further pressure release is come through this rotatory mode, prevents bursting of inner tube.

The rolling mechanism comprises a fixed ball sleeve 3 and balls 1, a ball cavity is formed in one side, opposite to the outer water discharge layer 8, of the fixed ball sleeve 3, the balls 1 are embedded in the ball cavity, part of the balls 1 extends out of the fixed ball sleeve 3, the extending end of each ball 1 is in rolling contact with the inner wall of the outer water discharge layer, and the fixed ball sleeves are uniformly embedded in the end face of each convex portion in a straight shape.

As shown in fig. 2, a self-sealing structure is arranged in the middle of the pressure relief drain hole 7, the self-sealing structure adopts two sealing blocks 11 made of elastic silica gel materials, the cross sections of the two sealing blocks 11 are both in a semicircular shape, the two sealing blocks 11 are sealed in a spherical surface contact manner, when the water pressure is too high, the two sealing blocks can be pushed open by the water pressure, so that water can pass through the pressure relief drain hole, overflow pressure relief is realized, when an outer water discharge layer breaks, only the pressure of a drain pipe needs to be reduced, the water pressure is reduced, the pressure relief drain hole can be automatically sealed, water in each overflow cavity is interrupted at will, water is not output any more, a main drainage channel can be utilized for drainage, and therefore, even if the outer water discharge layer breaks.

In this embodiment, the outer drainage layer 8 and the middle inner tube 2 are both made of PVC material, and the fixed ball sleeve of the rolling mechanism is made of metal material.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a compound explosion-proof drain pipe which characterized in that: the drainage device comprises an outer drainage layer, wherein a rotatably arranged inner pipe is arranged in the middle of the outer drainage layer, a main drainage channel is arranged in the middle of the inner pipe, more than one convex part is uniformly arranged outside the inner pipe around the inner pipe in a circle, an overflow cavity is formed between every two adjacent convex parts, and a row of pressure relief drainage holes are formed in the inner pipe between every two adjacent convex parts;

more than one rolling mechanism is arranged on the end face of one side of the convex part close to the outer drainage layer, and the whole inner pipe is arranged on the inner wall of the outer drainage layer in a rolling manner through more than one rolling mechanism;

the middle of each pressure relief drain hole is provided with a self-sealing structure;

the self-sealing structure adopts two sealing blocks made of elastic silica gel materials, the cross sections of the two sealing blocks are both in a semicircular shape, and the spherical surfaces of the two sealing blocks are in contact sealing.

2. The composite explosion proof drain pipe of claim 1, wherein: the rolling mechanism comprises a fixed ball sleeve and a ball, wherein a ball cavity is formed in one side, opposite to the outer water discharge layer, of the fixed ball sleeve, the ball is embedded into the ball cavity, the ball partially extends out of the fixed ball sleeve, and the extending end of the ball is in rolling contact with the inner wall of the outer water discharge layer.

3. The composite explosion proof drain pipe of claim 2, wherein: the fixed ball sleeves are uniformly embedded in the end face of each convex part in a straight line shape.

4. The composite explosion proof drain pipe of claim 2, wherein: the outer drainage layer and the middle inner pipe are both made of PVC materials, and the fixed ball sleeve of the rolling mechanism is made of metal materials.