CN209164793U - A kind of construction drainage standpipe voltage regulation type inside spin plastic tube - Google Patents
A kind of construction drainage standpipe voltage regulation type inside spin plastic tube Download PDFInfo
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- CN209164793U CN209164793U CN201821476230.5U CN201821476230U CN209164793U CN 209164793 U CN209164793 U CN 209164793U CN 201821476230 U CN201821476230 U CN 201821476230U CN 209164793 U CN209164793 U CN 209164793U
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- tube body
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Abstract
The utility model discloses a kind of construction drainage standpipe voltage regulation type inside spin plastic tubes, including tube body, primary blades and back blades, the tube body is cylindrical plastic drainpipe, the helical blade that the primary blades and back blades are coaxially disposed for the inner wall in tube body along standpipe axis direction, the junction of the root and inboard wall of tube body of primary blades and back blades is circular arc excessive structural, the angle that matches between primary blades and back blades is between 80 ° to 130 °, by the water flow for undertaking 80% by primary blades, 20% water flow is undertaken by back blades, it is allowed to still form preferable attached wall spiral water flow in biggish displacement, due to the reduction of pressure oscillation, improve the drain discharge in certain pressure fluctuation range, reduce water flow falling speed, reduce noise, avoid toilet back foul, improve the purpose of drainability, than Spiral pipe discharge pressure in the market is more stable, and drainage noise is reduced to 20 decibels.
Description
Technical field
The utility model relates to a kind of drainpipe field, specifically a kind of construction drainage standpipe voltage regulation type inside spin plastics
Pipe.
Background technique
Construction drainage standpipe is so that water flow is attached to inner wall of the pipe for building vertical direction draining by gravity and fall,
Form the membranaceous water flow to fall along inner wall of the pipe.Under this streamflow regime, water flow speed under the action of pipe friction resistance
It reduces, formation is at the uniform velocity flowed.Be conducive to improve pipe drainage performance, reduce pressure oscillation, prevent toilet floor drain back foul, reduces
Water flow noise, plastic tube are a kind of construction drainage standpipes, but due to plastic pipe inner wall smooth, frictional resistance is small, for building
When soil stack, water velocity is higher, and when flow is slightly larger, water plug flow easy to form causes occur biggish pressure wave in pipe
Dynamic and toilet back foul.This disadvantage limits the raisings of plastic pipe drainability.In order to solve this problem, nearly more than ten years
A kind of novel inside spin plastic drain pipe is developed, and by wide popularization and application.
The structure feature of inside spin plastic drain pipe is have several constant pitch certain altitudes in pipe material inner wall three
Angular spiral ribbed steel wire (see Fig. 2).The purpose is to make the water flow to fall along tube wall form spiral attached wall water flow, reduce under water flow
Terminal-velocity degree increases pipe friction resistance, and pressure oscillation when standpipe draining is reduced to reach, prevents floor drain damage of water block, is reduced
The generation of toilet back foul phenomenon, existing inside spin plastic drain pipe have very big compared with normal light wall plastic pipe
It improves, in the lesser situation of drain discharge, overpressure fluctuation and water flow falling speed are substantially reduced.Drainability also relatively light
Wall plastic tube increases.But when displacement increases, water flow leaves the tendency aggravation of tube wall, water flow alternating impact tube occurs
Wall, overpressure fluctuation obviously increase, and cause pipe vibration violent, noise is very big.To damage of water block, toilet back foul occur
The generation of phenomenon.And since blade is excessive, multi-strand flow is generated, leads to bad drainage effect, generation wallowing motion and beat
Vibration, vibration is big, noise is big, and for this case, in Chinese patent notification number CN104676132A, (authorized announcement date is
2015.06.03 it is coaxial along standpipe axial direction that a kind of band spiral single blade plastic conduit drainage system disclosed in) proposes use
A spiral single blade being arranged solves the problems, such as (see the Fig. 4), but is found by experimental verification, when water flow is excessive, one
Blade is not enough to obstruct big flow and realizes downward spiral draining, some is crossed blade and forms water body whereabouts, leads to system pressure
Power is uneven, so that pipeline internal vibration, floor drain trap seal loss is big, and noise increases.
The utility model is by changing inside spin plastic drain pipe spiral ribbed steel wire planform regarding to the issue above, to reach
To falling water flow form in soil stack is changed, overpressure is fluctuated when reducing draining, is reduced falling water flow speed, is avoided water seal
The purpose of destruction and toilet back foul reduce draining noise, improve drainability.
Utility model content
The purpose of this utility model is to provide a kind of construction drainage standpipe voltage regulation type inside spin plastic tube, technical sides
Case is by changing plastics inner helix pipe rib structure shape, using two spiral ribbed steel wires (see Fig. 6) of mutual lower fork.To improve
Flow shape in soil stack is allowed to still form preferable attached wall spiral water flow in biggish displacement, reaches reduction pressure
Fluctuation reduces water flow falling speed, reduces noise, avoids toilet back foul, and the purpose for improving drainability is above-mentioned to solve
The problem of being proposed in background technique.
To achieve the above object, the utility model provides the following technical solutions:
A kind of construction drainage standpipe voltage regulation type inside spin plastic tube, including tube body, primary blades and back blades, the tube body
For cylindrical plastic drainpipe, the primary blades and back blades are the spiral shell that is coaxially disposed along standpipe axis direction of inner wall in tube body
The root of vane piece, primary blades and back blades and the junction of inboard wall of tube body are circular arc excessive structural, so that primary blades and accessory lobes
The junction curvature of piece and inboard wall of tube body greatly reduces, i.e., radius of curvature increases, and the angle between primary blades and back blades is 80 °
To between 130 °, 80% water flow is undertaken by primary blades, and 20% water flow is undertaken by back blades.
According to the theory of fluid wall attachment effect: fluid (water flow or air-flow), which has, leaves original flow direction, be changed to
The tendency of the body surface flowing of protrusion.When between fluid and body surface that it is flowed through there are when mantle friction, the stream of fluid
Speed can slow down, as long as the curvature of body surface is not too big, in foundation hydrodynamics Bernoulli's theorem, slowing down for flow velocity can be led
It causes fluid to be attracted on body surface to flow.
When the inner helix pipe displacement of traditional triangle rib structure increases, overpressure fluctuation increases, pipe vibration
The reason of acutely and noise increases is:
1) it is influenced by gravity and pipe friction resistance, the water flow to fall along tube wall is to cross triangle rib along tube wall
Flowing, spiral water flow can not be formed along spiral ribbed steel wire.
2) when water flow flows through triangle rib surface along tube wall whereabouts, due to rib surface curvature greatly (radius of curvature
It is minimum), according to the theory of fluid wall attachment effect, water flow, which has, leaves strong tendency of the curvature greatly towards standpipe center movement,
And displacement is bigger, the water of water flow to standpipe center movement is bigger.Water flow big ups and downs in pipe are caused, is formed and is alternately impacted
The water plug flow that tube wall falls blocks pipe interior air-flow channel, causes stress fluctuation and sharply increases, noise increases.
As a further solution of the present invention: the tube body, primary blades and back blades using thermoplastic squeeze out one at
Type contour machining procedure, rapidoprint are polyvinyl chloride.
As a further solution of the present invention: the cross section structure of the primary blades and back blades is isosceles trapezoid knot
Structure, wherein the root of primary blades and back blades is the longer sides of isosceles trapezoid.
As a further solution of the present invention: the height of the primary blades rib is 5~15mm, root of blade and pipe
Inner wall intersection uses 3mm round-corner transition, and blade pitch is 330~760mm.
As a further solution of the present invention: the height of the back blades rib is 5~10mm, root of blade and pipe
Inner wall intersection uses 2mm round-corner transition, and blade pitch is 330~760mm.
As a further solution of the present invention: the primary blades and the hand of spiral of back blades are rotation counterclockwise,
The Northern Hemisphere is according to China, it is contemplated that earth autobiography direction, rotation can be improved water flow rotary effect counterclockwise, good attached
Wall water film flow pattern avoids water flow and impacts to the alternating of tube wall, substantially reduces pipe vibration and draining noise.
The inboard wall of tube body is evenly distributed with concave spherical surface or convex spherical plastic pipe as a further solution of the present invention,
It is again intended to the frictional resistance to form preferable water flow wall attachment effect and increase inner surface of tube body.
Compared with prior art, the utility model has the beneficial effects that according to the theory of fluid wall attachment effect, fluid (water
Stream or air-flow) have and leaves original flow direction, it is changed to the tendency flowed with the body surface of protrusion, when fluid is flowed through with it
Body surface between there are when mantle friction, the flow velocity of fluid can slow down, as long as the curvature of body surface is not too big, foundation
Bernoulli's theorem in hydrodynamics, the slowing down to will lead to fluid and be attracted on body surface of flow velocity are flowed, and pass through and change modeling
Inner helix pipe rib structure shape is expected, using two spiral ribbed steel wires (see Fig. 6) of mutual lower fork, to improve water flow in soil stack
Form undertakes 20% water flow by back blades by undertaking 80% water flow by primary blades, is allowed in biggish displacement
When can still form preferable attached wall spiral water flow, reduce pressure oscillation and improved due to the reduction of pressure oscillation in certain pressure
Drain discharge in fluctuation range reduces water flow falling speed, reduces noise, avoids toilet back foul, improve drainability it
Purpose, over the ground leak trap seal loss influence it is very small, be positive and negative 8mm, Dan Liguan drain discharge reach 13 liters it is per second.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the inner helix pipe drainpipe of traditional triangle rib structure.
Fig. 2 is the structural schematic diagram of the inner helix pipe drainpipe A-A section of traditional triangle rib structure.
Fig. 3 is the structural schematic diagram with spiral single blade drainpipe.
Fig. 4 is the structural schematic diagram with spiral single blade drainpipe B-B section.
Fig. 5 is the structural schematic diagram of construction drainage standpipe voltage regulation type inside spin plastic tube.
Fig. 6 is the structural schematic diagram of construction drainage standpipe voltage regulation type inside spin plastic tube C-C section.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~6, in the utility model embodiment, a kind of construction drainage standpipe voltage regulation type inside spin plastic tube,
Including tube body 1, primary blades 2 and back blades 3, the tube body 1 is cylindrical plastic drainpipe, and the primary blades 2 and back blades 3 are
In the helical blade that the inner wall of tube body 1 is coaxially disposed along standpipe axis direction, in the root of primary blades 2 and back blades 3 and tube body 1
The junction of wall is circular arc excessive structural, so that primary blades 2 and back blades 3 and the junction curvature of 1 inner wall of tube body greatly reduce,
I.e. radius of curvature increases, and the angle that matches between primary blades 2 and back blades 3 is to be undertaken between 80 ° to 130 ° by primary blades 2
80% water flow undertakes 20% water flow by back blades 3；
According to the theory of fluid wall attachment effect: fluid (water flow or air-flow), which has, leaves original flow direction, be changed to
The tendency of the body surface flowing of protrusion.When between fluid and body surface that it is flowed through there are when mantle friction, the stream of fluid
Speed can slow down, as long as the curvature of body surface is not too big, in foundation hydrodynamics Bernoulli's theorem, slowing down for flow velocity can be led
It causes fluid to be attracted on body surface to flow.
When the inner helix pipe displacement of traditional triangle rib structure increases, overpressure fluctuation increases, pipe vibration
The reason of acutely and noise increases is (see Fig. 3):
3) it is influenced by gravity and 11 frictional resistance of tube wall, the water flow to fall along tube wall 11 is to cross triangle rib 12
It is flowed along tube wall 11, spiral water flow can not be formed along triangle rib 12.
4) when water flow flows through triangle 12 surface of rib along the whereabouts of tube wall 11, due to 12 surface curvature pole of triangle rib
(radius of curvature is minimum) greatly, according to the theory of fluid wall attachment effect, water flow, which has, leaves curvature greatly towards standpipe center movement
Strong tendency, and displacement is bigger, and the water of water flow to standpipe center movement is bigger.Water flow big ups and downs in pipe are caused,
The water plug flow that alternately impact tube wall falls is formed, pipe interior air-flow channel is blocked, fluctuation is caused stress and sharply increases, noise increases.
Preferably, the tube body 1, primary blades 2 and back blades 3 are squeezed out using thermoplastic is integrally formed molding processing technology, adds
Work material is polyvinyl chloride.
Preferably, the cross section structure of the primary blades 2 and back blades 3 is isosceles trapezoidal structure, wherein primary blades 2 and accessory lobes
The root of piece 3 is the longer sides of isosceles trapezoid.
Preferably, the height of 2 rib of primary blades is 5~15mm, and root of blade and inside pipe wall intersection use 3mm fillet
Transition, blade pitch are 330~760mm.
Preferably, the height of 3 rib of back blades is 5~10mm, and root of blade and inside pipe wall intersection use 2mm fillet
Transition, blade pitch are 330~760mm.
Preferably, the primary blades 2 and the hand of spiral of back blades 3 are rotation counterclockwise, are in the Northern Hemisphere according to China,
In view of earth autobiography direction, rotation can be improved water flow rotary effect counterclockwise, and good attached wall water film flow pattern avoids water
It flows and the alternating of tube wall is impacted, substantially reduce pipe vibration and draining noise.
Preferably, the 1 inner wall even distribution concave spherical surface of tube body or convex spherical plastic pipe, are again intended to form preferable water flow
Wall attachment effect and the frictional resistance for increasing by 1 inner surface of tube body.
The working principle of the utility model is: fluid (water flow or air-flow) leaves according to the theory of fluid wall attachment effect
Original flow direction is changed to the tendency flowed with the body surface of protrusion, when between fluid and body surface that it is flowed through
There are when mantle friction, the flow velocity of fluid can slow down, as long as the curvature of body surface is not too big, in foundation hydrodynamics by primary
Exert sharp law, the slowing down to will lead to fluid and be attracted on body surface of flow velocity is flowed, by by changing plastics inner helix pipe
Rib structure shape is passed through using two spiral ribbed steel wires (see Fig. 6) of mutual lower fork with improving flow shape in soil stack
The water flow that 80% is undertaken by primary blades 2 undertakes 20% water flow by back blades 3, is allowed to still may be used in biggish displacement
Preferable attached wall spiral water flow is formed, reduction pressure oscillation is reached, reduces water flow falling speed, noise is reduced, avoids toilet
Back foul improves the purpose of drainability.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (7)
1. a kind of construction drainage standpipe is existed with voltage regulation type inside spin plastic tube, including tube body, primary blades and back blades, feature
In the tube body is cylindrical plastic drainpipe, and the primary blades and back blades are the inner wall in tube body along standpipe axis direction
The root of the helical blade of coaxial arrangement, primary blades and back blades and the junction of inboard wall of tube body are circular arc excessive structural, main lobe
The angle that matches between piece and back blades is between 80 ° to 130 °.
2. construction drainage standpipe according to claim 1 voltage regulation type inside spin plastic tube, which is characterized in that the pipe
Body, primary blades and back blades are squeezed out using thermoplastic is integrally formed molding processing technology, and rapidoprint is polyvinyl chloride.
3. construction drainage standpipe according to claim 2 voltage regulation type inside spin plastic tube, which is characterized in that the main lobe
The cross section structure of piece and back blades is isosceles trapezoidal structure, and wherein the root of primary blades and back blades is the longer of isosceles trapezoid
Side.
4. construction drainage standpipe according to claim 2 voltage regulation type inside spin plastic tube, which is characterized in that the main lobe
The height of piece rib is 5~15mm, and root of blade and inside pipe wall intersection use 3mm round-corner transition, blade pitch is 330~
760mm。
5. construction drainage standpipe according to claim 2 voltage regulation type inside spin plastic tube, which is characterized in that the accessory lobes
The height of piece rib is 5~10mm, and root of blade and inside pipe wall intersection use 2mm round-corner transition, blade pitch is 330~
760mm。
6. construction drainage standpipe according to claim 1 voltage regulation type inside spin plastic tube, which is characterized in that the main lobe
The hand of spiral of piece and back blades is rotation counterclockwise.
7. construction drainage standpipe according to claim 1 voltage regulation type inside spin plastic tube, which is characterized in that the tube body
Inner wall even distribution concave spherical surface or convex spherical plastic pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821476230.5U CN209164793U (en) | 2018-09-10 | 2018-09-10 | A kind of construction drainage standpipe voltage regulation type inside spin plastic tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821476230.5U CN209164793U (en) | 2018-09-10 | 2018-09-10 | A kind of construction drainage standpipe voltage regulation type inside spin plastic tube |
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| Publication Number | Publication Date |
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| CN209164793U true CN209164793U (en) | 2019-07-26 |
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| CN201821476230.5U Active CN209164793U (en) | 2018-09-10 | 2018-09-10 | A kind of construction drainage standpipe voltage regulation type inside spin plastic tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162629A (en) * | 2022-08-02 | 2022-10-11 | 南通大学 | Energy reducing device for building drainage pipe |
-
2018
- 2018-09-10 CN CN201821476230.5U patent/CN209164793U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162629A (en) * | 2022-08-02 | 2022-10-11 | 南通大学 | Energy reducing device for building drainage pipe |
| CN115162629B (en) * | 2022-08-02 | 2023-10-13 | 南通大学 | Building drain pipe energy-reducing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Building 1, south of Tianxin Road, Wangyuan Industrial Park, Yongning County, Yinchuan City, Ningxia 750000 Hui Autonomous Region Patentee after: Ningxia Maijian Pipeline Technology Co.,Ltd. Address before: No.96 Xinglong Street, Changcheng East Road, Xingqing District, Yinchuan City, Ningxia, 750000 Ningxia Hui Autonomous Region Patentee before: NINGXIA MAIJIAN PIPE INDUSTRY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221009 Address after: No. 39-2, longxinyuan, Xinhua East Street, Xingqing District, Yinchuan City, Ningxia Hui Autonomous Region Patentee after: Ningxia warm spring mechanical and electrical equipment installation engineering Co.,Ltd. Address before: Building 1, south of Tianxin Road, Wangyuan Industrial Park, Yongning County, Yinchuan City, Ningxia 750000 Hui Autonomous Region Patentee before: Ningxia Maijian Pipeline Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |