PVC drain pipe for urban pollution discharge construction

Abstract

The utility model discloses a PVC drain pipe for urban pollution discharge construction, which comprises an outer pipe and an inner pipe, the inner pipe is arranged in the outer pipe and can rotate around the axis of the inner pipe, an impeller is fixedly connected in one end of the inner pipe, spiral ribs are arranged on the inner wall of the inner pipe, the spiral ribs are spirally distributed along the inner wall of the inner pipe, and the spiral ribs are arranged in the outer pipe. A connecting pipe is connected between the two sections of outer pipes, the outer pipes are sleeved with the connecting pipe, and a driving structure is arranged on the connecting pipe and used for manual intervention of the inner pipe. The utility model belongs to the technical field of urban infrastructure construction, and particularly relates to a PVC (polyvinyl chloride) drainage pipe for urban pollution discharge construction.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of city infrastructure construction, specifically point to a kind of PVC drain pipe for city pollution construction. BACKGROUND

[0002] In the city pollution system, PVC drain pipe is widely used due to low cost, corrosion resistance and other characteristics. However, the traditional PVC drain pipe has many drawbacks: on the one hand, sewage often contains various impurities, such as sand, fibers, plastic product fragments and grease, etc. These impurities are easily attached to the inner wall of the pipeline when the water flow slows down, gradually accumulate over time, resulting in a decrease in the inner diameter of the pipeline, an increase in water flow resistance, a significant reduction in drainage efficiency, and in severe cases, even causing pipeline blockage, thereby causing urban waterlogging and other problems.

[0003] Some improved drain pipes on the market use a spiral guide rib on the inner wall of the pipe to guide the formation of a spiral flow to speed up the flow and use centrifugal force to clean impurities. However, this method has limited effectiveness, and when the sewage flow is unstable or there are many impurities, it still cannot effectively prevent impurities from adhering and blocking. Moreover, the guide rib is fixed on the pipe wall and is easily worn and deformed by long-term exposure to sewage and impurities. Once damaged, not only does the self-cleaning function weaken, but it can also become a new water flow obstruction point, further increasing the risk of blockage.

[0004] On the other hand, the structure of the traditional drain pipe is fixed and lacks a flexible mechanism to respond to blockage. When blockage occurs, it often requires a lot of manpower and resources to clear it, which not only increases costs but also affects the normal operation of the city pollution system, causing many inconveniences to residents' lives and the urban environment. INVENTION CONTENTS

[0005] To overcome the shortcomings of the prior art, the utility model provides a PVC drain pipe for city pollution construction, which effectively solves the problems of poor anti-blocking effect and lack of mechanism to respond to blockage of existing drain pipes.

[0006] To achieve the above functions, the utility model adopts the following technical solutions: a PVC drain pipe for city pollution construction, comprising an outer pipe and an inner pipe, the inner pipe is arranged inside the outer pipe and can rotate around its own axis, a impeller is fixed to one end of the inner pipe, a spiral rib is provided on the inner wall of the inner pipe, the spiral rib is arranged in a spiral shape along the inner wall of the inner pipe, a connecting pipe is connected between the two outer pipes, the connecting pipe is sleeved on the outer pipe, a driving structure is provided on the connecting pipe for manual intervention of the inner pipe.

[0007] Preferably, the driving structure comprises a slot embedded on the connecting pipe sidewall, a rotating shaft rotatably arranged in the slot, a gear fixedly sleeved on the rotating shaft, and annular teeth arranged on the outer surface of the inner pipe two ends and engaged with the gear.

[0008] Preferably, the connecting pipe is made of high-strength PVC material, and the two ends of the connecting pipe are tightly connected with the outer pipe through bolts, and the outer pipe is provided with screw grooves corresponding to the bolts.

[0009] Preferably, the inner pipe is provided with clamping grooves and clamping blocks at equal intervals at the two ends, and the clamping grooves and clamping blocks are one-to-one corresponding and clamped with each other.

[0010] Preferably, the connecting pipe is provided with a protective shell, and the protective shell covers the slot and the gear.

[0011] Preferably, the inner pipe is manufactured by an injection molding process to form an inner pipe with spiral ribs.

[0012] The utility model adopts the above structure to obtain beneficial effects as follows:

[0013] 1. Through the coordinated action of the impeller driving the inner pipe to rotate and the spiral ribs, the impurities in the sewage can be effectively thrown to the center of the pipeline and discharged, greatly reducing the risk of pipeline blockage and improving the reliability and stability of the drainage system.

[0014] 2. The manual operation function of the driving structure provides additional protection for pipeline maintenance, so that the operator can take prompt measures in emergency situations. DRAWINGS

[0015] Figure 1 The utility model provides a kind of overall structure schematic of PVC drainage pipe for urban sewage construction Figure 1 ;

[0016] Figure 2 The utility model provides a kind of sectional view of PVC drainage pipe for urban sewage construction Figure 1 ;

[0017] Figure 3 The utility model provides a kind of overall structure schematic of PVC drainage pipe for urban sewage construction Figure 2 ;

[0018] Figure 4 The utility model provides a kind of sectional view of PVC drainage pipe for urban sewage construction Figure 2 ;

[0019] Figure 5 For Figure 4 Local enlarged view of A in the middle;

[0020] Figure 6 The utility model provides a kind of mechanism diagram of inner tube and outer tube of PVC drain pipe for urban sewage construction Figure 1 ;

[0021] Figure 7 The utility model provides a kind of mechanism diagram of inner tube and outer tube of PVC drain pipe for urban sewage construction Figure 2 .

[0022] Wherein, 1, outer tube, 2, inner tube, 3, impeller, 4, spiral rib, 5, connecting pipe, 6, driving structure, 7, embedded groove, 8, rotating shaft, 9, gear, 10, annular tooth, 11, cover block, 12, bolt, 13, screw groove, 14, clamping groove, 15, clamping block, 16, protective shell. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be described clearly and completely in connection with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of the utility model protection.

[0024] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. is based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not to indicate or imply that the indicated device or element must have a particular orientation, to be constructed and operated with a particular orientation, so it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. The utility model is further described in detail below in connection with the drawings.

[0025] As Figures 1-7As shown, the utility model provides a PVC drainage pipe for urban sewage construction, including outer tube 1 and inner tube 2, outer tube 1 adopts high strength, corrosion -resistant PVC material and is made, has good pressure -resisting performance, can bear the pressure in the complex environment of underground, ensure that the pipeline does not occur deformation or rupture in the long -term use, inner tube 2 is arranged in outer tube 1 inside, can rotate around its axis, one end of inner tube 2 is fixedly connected with impeller 3, when sewage flows into the pipeline, water flow impacts impeller 3, drives impeller 3 to rotate, and then drives the synchronous rotation of inner tube 2, the inner wall of inner tube 2 is equipped with spiral rib 4, spiral rib 4 is arranged along the inner wall of inner tube 2 in spiral shape, the spiral rib 4 of inner wall rotates when inner tube 2 rotates, under the action of spiral rib 4, sewage is influenced by centrifugal force and is thrown to the center of the pipeline, while spiral rib 4 produces spiral pushing action to sewage, speeds up the flow rate of sewage, the impurities adhered on the pipe wall are cleaned down and are discharged from the pipeline with water flow under the scraping of spiral rib 4 and the scouring of sewage, effectively reduce the risk of pipeline blockage, inner tube 2 is manufactured using injection molding process, forms the inner tube 2 with spiral rib 4, the connecting pipe 5 is connected between the two outer tubes 1, the connecting pipe 5 is sleeved on the outer tube 1, the driving structure 6 is arranged on the connecting pipe 5, convenient for the manual operation of operating personnel, realize the manual intervention of inner tube 2.

[0026] As Figure 2 、 4 , 5 shows, the driving structure 6 includes the recess 7, the recess 7 is embedded in the side wall of connecting pipe 5, the recess 7 is rotatably provided with the shaft 8, the shaft 8 is fixedly sleeved with the gear 9, the outer surface of the both ends of inner tube 2 is provided with the annular tooth 10 engaged with the gear 9, the one side of shaft 8 is fixed with sleeve block 11, rotating sleeve block 11 drives shaft 8 and gear 9 to rotate, because the gear 9 and annular tooth 10 are engaged, make inner tube 2 rotate, when the pipeline appears the sign of blockage or needs to enhance the effect of anti-blocking, operating personnel can drive shaft 8 and gear 9 to rotate through rotating sleeve block 11, and then drive inner tube 2 to rotate, realize the manual intervention of inner tube 2, enhance the self-cleaning ability of pipeline, effectively deal with complex sewage situation, the connecting pipe 5 is buckled with the protective shell 16, the protective shell 16 covers the recess 7 and gear 9 outside, and is protected.

[0027] As Figure 1 、 3 , the connecting pipe 5 is made of high-strength PVC material, and the two ends thereof are tightly connected with the outer tubes 1 through bolts 12, and the outer tube 1 is provided with a threaded groove 13 corresponding to the bolt 12, to ensure the sealing and stability of the connection.

[0028] As Figure 6 、 7 , the both ends of the inner tube 2 are respectively provided with clamping grooves 14 and clamping blocks 15 at equal intervals, and the clamping grooves 14 and the clamping blocks 15 are one-to-one corresponding and clamped with each other, so as to tightly butt joint the inner tubes 2, and ensure the sealing.

[0029] In use, the annular teeth 10 on the inner tube 2 are aligned with the gear 9 and placed in the connecting tube 5, the clamping block 15 is aligned with the clamping groove 14 and preliminarily positioned, and the bolt 12 is aligned with the threaded groove 13 and tightened, so as to connect and fix the two pipe sections;

[0030] When sewage flows into the pipe, the water flow impacts the impeller 3, drives the impeller 3 to rotate, and in turn drives the inner tube 2 to rotate synchronously, the helical rib 4 on the inner wall of the inner tube 2 rotates with it, the sewage is thrown to the center of the pipe under the action of the helical rib 4 and the influence of the centrifugal force, and the helical rib 4 produces a helical pushing action on the sewage, which accelerates the flow rate of the sewage, the impurities attached to the pipe wall are cleaned down and discharged out of the pipe with the water flow under the scraping of the helical rib 4 and the scouring of the sewage, and the risk of pipe blockage is effectively reduced;

[0031] The rotating sleeve block 11 drives the rotating shaft 8 and the gear 9 to rotate, the inner tube 2 rotates due to the meshing of the gear 9 and the annular teeth 10, when there is a sign of blockage in the pipe or the anti-blocking effect needs to be enhanced, the operator can drive the rotating shaft 8 and the gear 9 to rotate through the rotating sleeve block 11, in turn drive the inner tube 2 to rotate, realize manual intervention on the inner tube 2, enhance the self-cleaning ability of the pipe, and effectively cope with complex sewage conditions.

[0032] The above describes the present application and its embodiments, which are not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments of the technical scheme can be designed, which should belong to the protection scope of the present application.

Claims

1. A PVC sewer pipe for urban sewer construction, characterized by: The utility model provides a kind of water pump, including outer tube (1) and inner tube (2), the inner tube (2) is arranged inside outer tube (1), can rotate around its axis, impeller (3) is fixed in the inner tube (2) one end, the inner wall of the inner tube (2) is equipped with helical rib (4), helical rib (4) is spirally arranged along the inner wall of inner tube (2), connecting pipe (5) is connected between two outer tube (1), the connecting pipe (5) is sleeved in outer tube (1) outside, driving structure (6) is equipped on the connecting pipe (5), for the manual intervention of inner tube (2).

2. The PVC drain pipe for urban sewage construction according to claim 1, characterized in that: The driving structure (6) includes the slot (7), the slot (7) is embedded in the side wall of connecting pipe (5), the rotating shaft (8) is rotatably arranged in the slot (7), the gear (9) is fixedly sleeved on the rotating shaft (8), the annular tooth (10) that is engaged with gear (9) is arranged on the outer surface of the both ends of inner tube (2), the sleeve block (11) is fixed on one side of the rotating shaft (8).

3. The PVC drain pipe for urban sewage construction according to any one of claims 1 or 2, characterized in that: The connecting pipe (5) is made of high-strength PVC material, and the both ends thereof are tightly connected with the outer tube (1) by bolts (12), and the outer tube (1) is provided with screw grooves (13) corresponding to the bolts (12).

4. The PVC drain pipe for urban sewage construction according to claim 3, characterized in that: The both ends of the inner tube (2) are respectively provided with clamping grooves (14) and clamping blocks (15) at equal intervals, and the clamping grooves (14) and the clamping blocks (15) are one-to-one corresponding and clamped with each other.

5. The PVC drain pipe for urban sewage construction according to claim 4, characterized in that: The connecting pipe (5) is buckled with a protective shell (16), and the protective shell (16) covers the slot (7) and the gear (9) outside.

6. The PVC drain pipe for urban sewage construction according to any one of claims 1, 2, 4, 5, characterized in that: The inner tube (2) is manufactured by injection molding process to form the inner tube (2) with helical rib (4).

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