Eccentric reducer union and drainage pipeline

Abstract

The utility model relates to the technical field of urban drainage, and particularly discloses an eccentric reducer union and a drainage pipeline, the eccentric reducer union comprises a first joint and a second joint, one end of the first joint serving as a water inlet is used for being connected with a pipeline main body; the end, serving as the water inlet, of the second connector is detachably connected to the other end, serving as the water outlet, of the first connector, and the diameter size of the end, serving as the water inlet, of the second connector is matched with the diameter size of the other end, serving as the water outlet, of the first connector. And the diameters of one ends of the first joint and the second joint as the water inlet are greater than those of the other ends of the first joint and the second joint as the water outlet. According to the eccentric reducing joint, the second joint can be replaced in time, and it is guaranteed that the water outlet flow speed is enough to wash away deposits at the bottom of a pipeline, so that the problem of pipe bottom deposition is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of urban drainage, in particular to an eccentric reducing joint and a drainage pipe. Background Art

[0002] During urban road construction, drainage pipe networks, as public facilities, are a crucial component of urban road construction. When drainage volumes are low, the water flow rate is extremely low, so silt easily accumulates at the bottom of the pipes, leading to blockages and impaired drainage. Existing techniques typically employ a combined eccentric reducer installed at locations prone to siltation, using a flat-bottom connection. This reduces the pipe outlet diameter by reducing the diameter, increasing the water flow rate while maintaining the same drainage volume, thereby flushing away silt at the pipe bottom.

[0003] The current combined eccentric reducer is usually made of two drainage pipes with different diameters and a transition pipe connecting the two. The outlet diameter size is not adjustable, and it is easy for the outlet diameter size to not match the flow rate of water in the pipe, resulting in the problem of siltation at the bottom of the pipe. Utility Model Content

[0004] The main purpose of the utility model is to propose an eccentric reducer, which aims to solve the problem that the outlet diameter size of the existing eccentric reducer cannot be adjusted, resulting in failure to meet actual water outlet requirements and further leading to siltation at the bottom of the pipe.

[0005] In order to solve the above problems, the present invention proposes an eccentric reducer, comprising:

[0006] a first joint, the first joint serving as one end of a water inlet and being connected to the pipe body; and

[0007] a second joint, wherein one end of the second joint serving as a water inlet is detachably connected to the other end of the first joint serving as a water outlet, and the diameter of the one end of the second joint serving as the water inlet matches the diameter of the other end of the first joint serving as the water outlet;

[0008] The diameter of one end of the first joint serving as the water inlet is larger than the diameter of the other end serving as the water outlet, and the diameter of one end of the second joint serving as the water inlet is larger than the diameter of the other end serving as the water outlet.

[0009] In one embodiment, a transition pipe portion is further provided at one end of the first joint serving as a water outlet, and the diameter of the transition pipe portion is adapted to the water outlet diameter of the first joint and the water inlet diameter of the second joint. One end of the transition pipe portion is fixedly connected to the first joint, and the other end is detachably connected to the second joint.

[0010] In one embodiment, the bottom of the first joint, the bottom of the transition pipe portion, and the bottom of the second joint are flush with the bottom of the pipeline body.

[0011] In one embodiment, the transition pipe portion is provided with a first flange circumferentially on an edge of one end close to the second joint, the second joint is provided with a second flange circumferentially on an edge of one end serving as the water inlet, and the eccentric reducer further includes a first mounting member;

[0012] The first flange abuts against the second flange through the first mounting member.

[0013] In one embodiment, the first mounting member is a bolt and a nut.

[0014] In one embodiment, the eccentric reducer includes a plurality of first mounting members, and the plurality of first mounting members are spaced apart along the circumference of the first flange and the second flange.

[0015] In one embodiment, the first joint is provided with a third flange circumferentially near an edge of one end of the pipe body, and the eccentric reducer further comprises a plurality of second mounting members;

[0016] A plurality of the second mounting members are spaced apart along the circumference of the third flange, so that the third flange is attached to an external wall, and the first joint is opposite to the pipeline body.

[0017] In one embodiment, the second mounting member is an expansion screw.

[0018] In one embodiment, the eccentric reducer is made of stainless steel.

[0019] The present utility model also proposes a drainage pipe, which includes an eccentric reducer and a pipe body. The pipe body is inserted into the interior of an external wall, and the eccentric reducer is connected to the water outlet end of the pipe body. The eccentric reducer is the eccentric reducer as described above.

[0020] The utility model proposes an eccentric reducing joint, comprising a first joint and a second joint, wherein one end of the first joint is connected to the pipeline body, and the second joint can be detachably installed on the other end of the first joint. When the water outlet flow rate in the pipeline changes, the original second joint can be disassembled and replaced with a second joint that is compatible with the current water outlet flow rate, thereby ensuring that the water outlet flow rate is sufficient to flush away the silt at the bottom of the pipeline, thereby reducing the problem of siltation at the bottom of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of an embodiment of an eccentric reducer of the utility model;

[0023] Figure 2 for Figure 1 A partial exploded view of the embodiment;

[0024] Figure 3 for Figure 1 A structural diagram of another embodiment from another perspective;

[0025] Figure 4 for Figure 3 sectional view of .

[0026] Description of Figure Numbers:

[0027] 100. Drainage pipe; 10. Eccentric reducer; 11. First joint; 111. Third flange; 12. Transition pipe; 121. First flange; 13. Second joint; 131. Second flange; 14. First mounting member; 15. Second mounting member; 20. Pipe body.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] In the process of urban road construction, drainage pipe networks as public facilities are an important part of urban road construction. When the drainage volume is very small, the water flow rate is extremely low, so it is easy for siltation to occur at the bottom of the drainage pipe, causing pipe blockage and affecting drainage. The existing technology usually uses a flat-bottomed method to install a combined eccentric reducer at the drainage pipe where siltation is easy to occur. By reducing the diameter of the drainage pipe outlet, the water flow rate is increased under the condition of the same drainage volume, thereby flushing away the silt at the bottom of the pipe. The current combined eccentric reducer is usually made of two drainage pipes with different diameters and a transition pipe connecting the two. The outlet diameter size is not adjustable, and it is easy for the outlet diameter size to not match the water flow rate in the pipe, resulting in the problem of siltation at the bottom of the pipe.

[0033] In order to solve the above problems, the present invention proposes an eccentric reducer, which aims to solve the problem that the outlet diameter size of the existing eccentric reducer cannot be adjusted, resulting in failure to meet actual water outlet needs and further leading to siltation at the bottom of the pipe.

[0034] like Figure 1 and Figure 4 In one embodiment, the eccentric reducer 10 includes a first joint 11 and a second joint 13. One end of the first joint 11 serving as a water inlet is used to be connected to the pipe body 20. One end of the second joint 13 serving as a water inlet is detachably connected to the other end of the first joint 11 serving as a water outlet. The diameter of the end of the second joint 13 serving as the water inlet is adapted to the diameter of the other end of the first joint 11 serving as the water outlet.

[0035] The diameter of one end of the first joint 11 and the second joint 13 serving as the water inlet is larger than the diameter of the other end serving as the water outlet.

[0036] In this embodiment, the eccentric reducer 10 mainly includes a first joint 11 and a second joint 13. The water inlet diameter of the first joint 11 is larger to adapt to the larger diameter of the pipe body 20, and at the same time, it is firmly connected to the pipe body 20 to ensure that the water flow in the pipe body 20 can flow smoothly into the first joint 11. The second joint 13 is detachably connected to the first joint 11 so that it can be easily operated when maintenance or replacement is required. Specifically, the water inlet diameter size of the second joint 13 is adapted to the water outlet diameter size of the first joint 11, ensuring a smooth connection between the two. At the same time, this design enables the second joint 13 to fit tightly with the first joint 11 to form a leak-free connection, ensuring the sealing of drainage.

[0037] Furthermore, the water inlet diameters of the first connector 11 and the second connector 13 in this embodiment are both larger than their own water outlet diameters. This variable diameter design allows the pipe diameter to be reduced without changing the direction of the pipe. Under the condition of the same drainage volume, the water flow rate is increased to facilitate flushing away the sediment and impurities at the bottom of the pipe, keeping the pipe clean and reducing the frequency of blockage and maintenance. At the same time, due to the increase in water flow rate, the efficiency of the drainage system can be maintained or improved without increasing the pumping power, further improving the practicality of the eccentric reducer 10. In addition, in daily working environments, the flow rate of water in the pipe may change. The detachable design allows the operator to easily replace or adjust the size of the connector according to the actual water flow rate to optimize the drainage efficiency. When the water flow rate is low, a second joint 13 with a smaller outlet diameter can be used to increase the water flow rate and ensure that the silt in the pipe is effectively washed away; when the water flow rate is high, a second joint 13 with a larger outlet diameter can be selected to reduce the water flow rate and avoid unnecessary pressure on the pipe to reduce damage to the pipe, thereby providing the drainage system with extremely high flexibility and adaptability, enabling it to effectively cope with various water flow rate conditions and ensure the stable operation and long-term efficiency of the drainage system.

[0038] The utility model proposes an eccentric reducer 10, comprising a first joint 11 and a second joint 13, wherein one end of the first joint 11 is connected to a pipe body 20, and the second joint 13 is detachably mounted on the other end of the first joint 11. When the water flow rate in the pipe changes, the original second joint 13 can be removed and replaced with a second joint 13 that is adapted to the current water flow rate, thereby ensuring that the water flow rate is sufficient to flush away the silt at the bottom of the pipe, thereby reducing the problem of siltation at the bottom of the pipe.

[0039] like Figures 1 to 3In one embodiment, a transition pipe portion 12 is further provided at one end of the first joint 11 serving as a water outlet. The diameter of the transition pipe portion 12 is adapted to the water outlet diameter of the first joint 11 and the water inlet diameter of the second joint 13. One end of the transition pipe portion 12 is fixedly connected to the first joint 11, and the other end is detachably connected to the second joint 13.

[0040] In this embodiment, the transition portion is a cylindrical pipe section, the specific length of which is not limited herein. The transition pipe section 12 can be connected to the first joint 11 by welding or an integrated design to ensure the stability and sealing of the connection between the two. The other end is detachably connected to the second joint 13, allowing for quick assembly and disassembly with the second joint 13, and facilitating maintenance and replacement of the second joint 13. The provision of the transition pipe section 12 provides a transition area for the eccentric reducer 10, allowing for a smooth transition of water flow from the first joint 11 to the second joint 13, resulting in smoother water flow. At the same time, it effectively reduces water turbulence at the joint, reduces water flow noise, and reduces erosion of the pipe inner wall, thereby reducing maintenance frequency and extending the service life of the system.

[0041] like Figure 3 and Figure 4 In one embodiment, the bottom of the first joint 11 , the bottom of the transition pipe portion 12 , and the bottom of the second joint 13 are flush with the bottom of the pipe body 20 .

[0042] In this embodiment, the bottoms of the first joint 11, transition pipe 12, and second joint 13 are designed to be flush with the bottom of the pipe body 20. This prevents water from encountering any obstructions during flow, thereby reducing flow resistance and improving drainage efficiency. This also effectively reduces siltation within the pipe and improves internal cleanliness. Furthermore, the flush bottom arrangement helps evenly distribute water flow within the pipe, avoiding localized excess or excess flow within the pipe, thereby improving the overall stability of the drainage system.

[0043] like Figures 1 to 3 In one embodiment, a first flange 121 is circumferentially provided on an edge of one end of the transition pipe portion 12 close to the second joint 13, and a second flange 131 is correspondingly circumferentially provided on an edge of one end of the second joint 13 serving as the water inlet. The eccentric reducer 10 further includes a first mounting member 14.

[0044] The first flange 121 abuts against the second flange 131 through the first mounting member 14 .

[0045] In this embodiment, the first flange 121 is welded to the circumferential edge of the transition pipe portion 12 near the second joint 13, and the second flange 131 is welded to the circumferential edge of one end of the second joint 13 serving as the water inlet. The first mounting member 14 is used to connect the first flange 121 and the second flange 131 to ensure that the two can be tightly fitted and connected, thereby making the first joint 11 and the second joint 13 firmly connected. The setting of the first flange 121 and the second flange 131 provides good sealing performance for the connection between the two joints, which can effectively prevent water leakage at the connection between the two joints, thereby improving the safety of the eccentric reducer 10. At the same time, the structural design of the first flange 121 and the second flange 131 can withstand higher pressure and torque, ensuring the stability and durability of the connection, thereby improving the service life of the eccentric reducer 10.

[0046] Furthermore, if Figures 1 to 3 In one embodiment, the first mounting member 14 is a bolt and a nut.

[0047] In this embodiment, the length and diameter of the bolt are selected according to the size of the flange and the required connection strength. The bolt cooperates with the nut thread to press the two flanges tightly together to ensure the connection strength between the two. At the same time, the bolt and the nut are easy to disassemble and connect, which reduces the operating difficulty of the staff. At the same time, the clamping force between the flanges can be adjusted by tightening or loosening the nut to ensure that the connection between the two flanges is firm and will not be damaged due to excessive compression, thereby improving the service life of the eccentric reducer 10.

[0048] In other embodiments, the first flange 121 and the second flange 131 may be connected by a key.

[0049] Furthermore, if Figures 1 to 3 In one embodiment, the eccentric reducer 10 includes a plurality of first mounting members 14 , which are spaced apart along the circumference of the first flange 121 and the second flange 131 .

[0050] In this embodiment, multiple first mounting members 14 are evenly spaced around the circumference of the first flange 121 and the second flange 131. This layout ensures a uniform and stable connection between the two flanges, preventing deformation or damage caused by excessive force on a single bolt. It also helps achieve a better seal and reduces the possibility of leakage caused by the slight gap between the two flanges. Furthermore, if an individual first mounting member 14 is damaged, the remaining first mounting members 14 can still maintain a stable connection between the two flanges, thereby improving the safety and practicality of the eccentric reducer 10.

[0051] like Figure 2 and Figure 4In one embodiment, a third flange 111 is circumferentially provided on an edge of one end of the first joint 11 close to the pipe body 20 , and the eccentric reducer 10 further includes a plurality of second mounting members 15 ;

[0052] The plurality of second mounting members 15 are spaced apart along the circumference of the third flange 111 , so that the third flange 111 is attached to an external wall, and the first joint 11 faces the pipe body 20 .

[0053] In this embodiment, the third flange 111 is welded to the circumferential edge of the first joint 11 near the pipe body 20 to ensure stability and sealing between the two. The design of the third flange 111 allows the first joint 11 to be securely attached to the external wall, while also enabling the eccentric reducer 10 to better withstand the pressure and vibration in the pipeline system, thereby improving the stability of the overall structure. The third flange 111 is connected to the wall via a plurality of second mounting members 15 spaced circumferentially around the third flange 111, ensuring a secure connection and preventing deformation or damage to the third flange 111 due to excessive local pressure, thereby increasing the service life of the third flange 111.

[0054] Furthermore, if Figure 2 and Figure 4 In one embodiment, the second mounting member 15 is an expansion screw.

[0055] In this embodiment, the second mounting member 15 is an expansion screw, which primarily comprises a screw head, a threaded rod, and an expansion sleeve. When the screw is screwed into the wall, the expansion sleeve expands outward and grips the interior of the wall, thereby securing the third flange 111 to the wall. This effectively reduces loosening of the first joint 11 caused by pipeline vibration and maintains the stability of the first joint 11.

[0056] In other embodiments, the third flange 111 and the wall may be connected by threads.

[0057] like Figures 1 to 4 In one embodiment, the eccentric reducer 10 is made of stainless steel.

[0058] In this embodiment, the eccentric reducer 10 is made of stainless steel to reduce corrosion caused by contaminants in the water flow, thereby increasing the service life of the eccentric reducer 10. The stainless steel material also provides the eccentric reducer 10 with sufficient mechanical strength to withstand the pressure and vibration in the piping system, further improving the durability and reliability of the eccentric reducer 10.

[0059] like Figure 4The present invention also proposes a drainage pipe 100, which includes an eccentric reducer 10 and a pipe body 20. The pipe body 20 is inserted into the interior of the external wall, and the eccentric reducer 10 is connected to the water outlet end of the pipe body 20. The specific structure of the eccentric reducer 10 refers to the above embodiment. Since the eccentric reducer 10 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0060] In a specific embodiment, the eccentric reducer 10 includes multiple second joints 13, so that the operator can promptly replace the second joint 13 that is adapted to the current water flow rate according to the water flow rate in actual work, so as to ensure the stable operation of drainage of the drainage pipe 100, thereby improving the working efficiency of the drainage pipe 100.

[0061] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An eccentric reducer, used in a drainage pipe, wherein the drainage pipe further comprises a pipe body, characterized in that: The eccentric reducer comprises: a first joint, the first joint serving as one end of a water inlet and being connected to the pipe body; and a second joint, wherein one end of the second joint serving as a water inlet is detachably connected to the other end of the first joint serving as a water outlet, and the diameter of the one end of the second joint serving as the water inlet matches the diameter of the other end of the first joint serving as the water outlet; The diameter of one end of the first joint serving as the water inlet is larger than the diameter of the other end serving as the water outlet, and the diameter of one end of the second joint serving as the water inlet is larger than the diameter of the other end serving as the water outlet.

2. The eccentric reducer according to claim 1, wherein: A transition pipe portion is also provided at one end of the first joint serving as a water outlet. The diameter of the transition pipe portion is adapted to the water outlet diameter of the first joint and the water inlet diameter of the second joint. One end of the transition pipe portion is fixedly connected to the first joint, and the other end is detachably connected to the second joint.

3. The eccentric reducer according to claim 2, characterized in that: The bottom of the first joint, the bottom of the transition pipe portion, and the bottom of the second joint are flush with the bottom of the pipeline body.

4. The eccentric reducer according to claim 2, wherein: The transition pipe portion is provided with a first flange on the circumference of one end edge close to the second joint, and the second joint is provided with a second flange on the circumference of one end edge serving as the water inlet. The eccentric reducer further includes a first mounting member. The first flange abuts against the second flange through the first mounting member.

5. The eccentric reducer according to claim 4, characterized in that: The first mounting member is a bolt and a nut.

6. The eccentric reducer according to claim 5, characterized in that: The eccentric reducer joint includes a plurality of first mounting members, and the plurality of first mounting members are arranged at intervals along the circumference of the first flange and the second flange.

7. The eccentric reducer according to any one of claims 1 to 6, characterized in that: The first joint is provided with a third flange circumferentially near the edge of one end of the pipe body, and the eccentric reducer further includes a plurality of second mounting members; A plurality of the second mounting members are spaced apart along the circumference of the third flange, so that the third flange is attached to an external wall and the first joint is butted against the pipeline body.

8. The eccentric reducer according to claim 7, wherein: The second mounting member is an expansion screw.

9. The eccentric reducer according to any one of claims 1 to 6, characterized in that: The eccentric reducing joint is made of stainless steel.

10. A drainage pipe, characterized in that: The drainage pipe includes an eccentric reducer as described in any one of claims 1 to 9 and a pipe body, the pipe body is inserted into the interior of the external wall, and the eccentric reducer is connected to the water outlet end of the pipe body.

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