No-clean device for drain pipe
By designing a drain pipe cleaning-free device, which uses airbags to seal the ports and brush strips to clean the inner walls, the problem of time-consuming cleaning of manholes is solved, achieving rapid sealing and efficient cleaning, and reducing costs and space occupation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIAXING ZHONGDA CONSTRUCT CO LTD
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-05
AI Technical Summary
The cleaning work at existing drainage pipe manholes is time-consuming and expensive, especially since cleaning tools are difficult to use in confined spaces, resulting in poor overall results.
A drain pipe cleaning-free device was designed, comprising an airbag, a retaining ring, and a brush strip. The airbag seals the drain pipe port by inflating and deflating, and the brush strip is used to clean the inner wall. The structure is simple and easy to install and disassemble.
It enables quick sealing of drain pipe ports, reducing cleaning time and costs, and its smaller size makes it easier to store, thus improving cleaning efficiency and convenience.
Smart Images
Figure CN224200014U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering machinery technology, and more specifically, it relates to a drain pipe cleaning-free device. Background Technology
[0002] During the construction of outdoor greening and landscaping projects, drainage pipes are used extensively and laid over long distances. Typically, manholes are installed every 20 meters. Due to construction reasons, debris such as soil can easily enter the drainage pipes at the manholes, causing blockages and affecting drainage function. It is necessary to clean the drainage pipe ports. It is understood that the current market labor costs are high and the cleaning process is time-consuming.
[0003] Currently, when cleaning debris from the drainpipe ends at existing drainage manholes, construction workers must descend into the manhole foundation and use shovels or their bare hands to clean the pipes until they meet the required standards before proceeding to the next step. If space is limited and cleaning tools are unavailable, manual cleaning increases time and labor costs, resulting in unsatisfactory overall results. Therefore, this utility model proposes a drainpipe cleaning-free device. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a drain pipe cleaning-free device, which has the characteristics of simple structure and convenient disassembly and assembly.
[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The utility model relates to a drain pipe cleaning-free device, including an airbag whose outer wall is attached to the inner wall of the drain pipe. One end of the airbag is provided with a retaining ring that restricts axial movement. The retaining ring is attached to the end face of the drain pipe. A closed-ring neck ring is connected between the retaining ring and the airbag. The neck ring is provided with at least one push-pull hole that extends circumferentially. A valve core is provided inside the neck ring to inflate and deflate the airbag. The height of the valve core is not greater than the height of the neck ring.
[0006] The present invention is further configured such that: at least one annular groove is provided on the outer wall of the airbag, and a matching brush strip is embedded in the annular groove, the brush strip having bristles for brushing the inner wall of the drain pipe.
[0007] The present invention is further configured such that the other end of the airbag has a guide portion.
[0008] The present invention is further configured such that: the outer edge of the retaining ring has a flange extending axially, and the inner wall of the flange is in contact with the outer wall of the drain pipe.
[0009] The present invention is further configured such that: the number of push-pull holes is not less than two; the push-pull holes are arranged in a circular array around the axis of the neck ring.
[0010] The present invention is further configured such that the airbag is a rubber airbag.
[0011] The present invention is further configured such that the airbag is made of polyamide fabric.
[0012] In summary, this utility model has the following beneficial effects:
[0013] 1. It can quickly seal the drain pipe port, is easy to install, and does not require cleaning the inside of the pipe.
[0014] 2. After deflation, it can shrink in size, reduce the space occupied, and make it easy to store.
[0015] 3. Simple structure and easy to manufacture and process. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the installation state of this utility model. Detailed Implementation
[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.
[0019] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.
[0020] Example 1
[0021] See Figure 1 and Figure 2 As shown, the drain pipe cleaning-free device involved in this embodiment includes an airbag 1 whose outer wall is attached to the inner wall of the drain pipe 100. One end of the airbag 1 is provided with a retaining ring 2 to restrict axial movement. The retaining ring 2 is attached to the end face of the drain pipe 100. A closed ring-shaped neck ring 3 is connected between the retaining ring 2 and the airbag 1. At least one push-pull hole 4 extending circumferentially is provided on the neck ring 3. A valve core 5 is provided inside the neck ring 3 to inflate and deflate the airbag. The height of the valve core 5 is not greater than the height of the neck ring 3.
[0022] Furthermore, the other end of the airbag 1 has a guide portion 8.
[0023] Furthermore, the number of push-pull holes 4 is not less than two; the push-pull holes 4 are arranged in a ring array around the axis of the neck ring 3.
[0024] Furthermore, the airbag 1 is a rubber airbag.
[0025] Furthermore, the airbag 1 is made of polyamide fabric.
[0026] In this embodiment, the airbag 1 is first inflated appropriately using the valve core 5, then inserted into the drain pipe 100 opening until the retaining ring 2 abuts against the end face of the drain pipe 100. The airbag 1 is then inflated again until the outer wall of the airbag 1 is tightly against the inner wall of the drain pipe 100. Finally, the same operation is performed on the other end of the drain pipe 100, thus completing the sealing of both ends of the drain pipe 100. When the drain pipe 100 needs to be used or installed, the airbag 1 is deflated and then removed.
[0027] In this way, by setting the height of the valve core 5 to be no greater than the height of the neck ring 3, the valve core 5 is prevented from coming into contact with external objects due to being exposed, thus protecting the valve core 5 from impacts.
[0028] The guide section 8 serves as an installation guide when the airbag 1 is inserted into the drain pipe 100 opening.
[0029] Example 2
[0030] See Figure 1 and Figure 2 As shown, the drain pipe cleaning-free device involved in this embodiment is further configured based on embodiment 1, wherein at least one annular groove 6 is provided on the outer wall of the airbag 1, and a matching brush strip 7 is embedded in the annular groove 6, the brush strip 7 having bristles for brushing the inner wall of the drain pipe.
[0031] In this embodiment, the annular groove 6, in conjunction with the brush strip 7, serves to self-clean the inner wall of the drain pipe 100 when the airbag 1 is removed.
[0032] Example 3
[0033] See Figure 1 and Figure 2 As shown, the drain pipe cleaning-free device involved in this embodiment is further configured based on embodiment 1, wherein the outer edge of the retaining ring 2 has a flange 9 extending axially, and the inner wall of the flange 9 is in contact with the outer wall of the drain pipe 100.
[0034] In this embodiment, the flange 9 is used to block the gap between the retaining ring 2 and the end face of the drain pipe 100, preventing foreign objects from falling in.
[0035] The drain pipe cleaning-free device involved in this utility model can quickly seal the drain pipe port, is easy to install, and eliminates the need to clean the inside of the pipe; after degassing, it can reduce its size, reduce the space occupied, and make it easy to store; moreover, it has a simple structure, is easy to manufacture and process, has complete overall functions, and is highly practical.
[0036] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.
[0037] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0038] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A drain pipe cleaning-free device, characterized in that, The device includes an airbag whose outer wall is attached to the inner wall of the drain pipe. One end of the airbag is provided with a retaining ring that restricts axial movement. The retaining ring is attached to the end face of the drain pipe. A closed-ring neck ring is connected between the retaining ring and the airbag. The neck ring has at least one push-pull hole that extends circumferentially. A valve core is provided inside the neck ring to inflate and deflate the airbag. The height of the valve core is not greater than the height of the neck ring.
2. The drain pipe cleaning-free device according to claim 1, characterized in that, The outer wall of the airbag is provided with at least one annular groove, and a matching brush strip is embedded in the annular groove. The brush strip has bristles for brushing the inner wall of the drain pipe.
3. The drain pipe cleaning-free device according to claim 1 or 2, characterized in that, The other end of the airbag has a guide section.
4. The drain pipe cleaning-free device according to claim 3, characterized in that, The outer edge of the retaining ring has a flange extending axially, and the inner wall of the flange is in contact with the outer wall of the drain pipe.
5. The drain pipe cleaning-free device according to claim 1, characterized in that, The number of push-pull holes is no less than two; the push-pull holes are arranged in a circular array around the axis of the neck ring.
6. The drain pipe cleaning-free device according to claim 1, characterized in that, The airbag is a rubber airbag.
7. The drain pipe cleaning-free device according to claim 1, characterized in that, The airbag is made of polyamide fabric.