A drain cleaner

By designing a drain cleaner with a rubber bulb, the problem of poor sealing in toilets with small drain outlets was solved, achieving convenient replacement and efficient unclogging.

CN224431570UActive Publication Date: 2026-06-30朱方正

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
朱方正
Filing Date
2025-06-24
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing drain cleaners do not seal well on toilets with small drain openings, affecting the unblocking effect, and the rubber bulb is inconvenient to replace.

Method used

Design a drain cleaner that includes a handle, connecting rod, connector, and rubber bulb. The rubber bulb makes full contact with the toilet drain outlet to form a good seal. The negative pressure generated by the piston-like pull-out helps to unclog the blockage. The rubber bulb can be disassembled and replaced.

Benefits of technology

It achieves a good sealing effect on toilets with small drain outlets and allows for convenient replacement of the rubber bulb, improving unclogging efficiency and applicability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a drain cleaner, which includes a handle, a connecting rod, a connector, and a rubber bulb. The connecting rod has a first end and a second end that are far apart from each other; the first end of the connecting rod is connected to the handle; the connector has a first connecting portion and a second connecting portion that are far apart from each other, and the first connecting portion is connected to the second end of the connecting rod; the rubber bulb includes a hollow bulb body and a connecting portion, the bulb body has a proximal end, a distal end, and a middle portion, and the proximal end of the bulb body is close to the connector; the cross-sectional dimension of the bulb body gradually decreases from the middle portion to the distal end; the connecting portion is located at the proximal end and is detachably connected to the second connecting portion. The rubber bulb can fully contact the toilet drain outlet or pipe opening to form a good sealing effect; the user uses a piston-like pulling method to create negative pressure at the toilet blockage or pipe opening, thereby achieving the purpose of unblocking the blockage; in addition, the rubber bulb is easy to replace.
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Description

Technical Field

[0001] This application relates to the field of drain cleaning technology, specifically to a drain cleaning device. Background Technology

[0002] Toilet clogs are a common problem, usually caused by foreign objects, toilet paper, wet wipes, or other debris accumulating in the drain. Toilet clogs are typically cleared using drain cleaning tools, with a plunger being the most common. It consists of a rubber suction cup and a handle. The suction cup is aligned with the toilet drain opening, and pressure is applied by pressing and pulling, using air pressure and suction to clear the blockage. However, some toilets have smaller drain openings, and the plunger may not provide a complete seal, affecting its effectiveness. Therefore, there is still room for improvement and optimization in existing drain cleaning technology. Utility Model Content

[0003] To solve the above-mentioned technical problems, this application provides a pipe cleaner, comprising: a handle; a connecting rod; the connecting rod having a first end and a second end that are spaced apart from each other; the first end of the connecting rod being connected to the handle; a connector having a first connecting portion and a second connecting portion that are spaced apart from each other, the first connecting portion being connected to the second end of the connecting rod; and a rubber balloon, comprising: a hollow balloon body with a wall thickness of 1-4 mm; the balloon body having a proximal end, a distal end, and a middle portion, the proximal end of the balloon body being close to the connector; the cross-sectional dimensions of the balloon body gradually decreasing from the middle portion to the distal end; and the rubber balloon further comprising a connecting portion located at the proximal end and detachably connected to the second connecting portion.

[0004] In some embodiments, the second connecting portion has a stepped structure, and the connecting portion has a stepped groove adapted to the second connecting portion, and the second connecting portion can be inserted into the stepped groove; the second connecting portion includes: a connecting post; a first annular flange and a second annular flange provided at least along the length direction on the connecting post, with a gap between the first annular flange and the second annular flange; and the first annular flange is away from the free end of the connecting post, and the diameter of the first annular flange is not less than the diameter of the second annular flange.

[0005] In some embodiments, the cross-sectional dimensions of the balloon body gradually decrease from the middle portion to the proximal end; or, the cross-sectional dimensions of the balloon body are the same from the middle portion to the proximal end.

[0006] In some embodiments, the second connecting part is a threaded shaft, and the connecting part has a threaded hole adapted to the threaded shaft.

[0007] In some embodiments, the connector further includes an intermediate connecting portion disposed between the first connecting portion and the second connecting portion; both the first connecting portion and the intermediate connecting portion are columnar structures, and the cross-sectional dimension of the first connecting portion is smaller than that of the intermediate connecting portion.

[0008] In some embodiments, the second end of the connecting rod has a connecting hole, and the first connecting portion passes through and is fixed in the connecting hole.

[0009] In some embodiments, the connecting rod includes a first rod body and a second rod body in its length direction, one of the first rod body and the second rod body having an adjustment shaft, and the other of the first rod body and the second rod body having an adjustment cavity, wherein the adjustment shaft is threadedly engaged with the adjustment cavity to make the length of the connecting rod adjustable.

[0010] In some embodiments, the handle has a straight-line structure, and the end of the handle away from the connecting rod has a hanging hole.

[0011] In some embodiments, the handle has a T-shaped structure.

[0012] In some embodiments, the rubber balloon has multiple models with different sizes; and / or, the rubber balloon is made of nitrile rubber.

[0013] The beneficial effects of this application are as follows: This utility model discloses a drain cleaner, which includes a handle, a connecting rod, a connector, and a rubber bulb. The connecting rod has a first end and a second end that are far apart from each other; the first end of the connecting rod is connected to the handle; the connector has a first connecting portion and a second connecting portion that are far apart from each other, and the first connecting portion is connected to the second end of the connecting rod; the rubber bulb includes a hollow bulb body and a connecting portion, the bulb body has a proximal end, a distal end, and a middle portion, and the proximal end of the bulb body is close to the connector; the cross-sectional dimension of the bulb body gradually decreases from the middle portion to the distal end; the connecting portion is located at the proximal end and is detachably connected to the second connecting portion. The rubber bulb can fully contact the toilet drain outlet or pipe opening to form a good sealing effect; the user can use a piston-like pulling method to generate negative pressure at the toilet blockage or pipe opening, thereby achieving the purpose of unblocking the blockage; in addition, the rubber bulb is easy to replace. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0015] Figure 1A This is a three-dimensional schematic diagram of an embodiment of the pipe unclogging device of this utility model;

[0016] Figure 1B This is an exploded view of an embodiment of the pipe unclogging device of this utility model;

[0017] Figure 1CThis is a cross-sectional schematic diagram of an embodiment of the pipe unclogging device of this utility model;

[0018] Figure 1D This is a three-dimensional schematic diagram of the handle in one embodiment of the pipe unclogging device of this utility model;

[0019] Figure 1E This is a three-dimensional schematic diagram of the connecting rod in one embodiment of the pipe unclogging device of this utility model;

[0020] Figure 1F This is a three-dimensional schematic diagram of the connector in one embodiment of the pipe unclogging device of this utility model;

[0021] Figure 1G This is a cross-sectional schematic diagram of the connector in one embodiment of the pipe unclogging device of this utility model;

[0022] Figure 1H This is a cross-sectional schematic diagram of the rubber balloon in one embodiment of the pipe unclogging device of this utility model;

[0023] Figure 2 This is an exploded view of the connecting rod in another embodiment of the pipe unclogging device of this utility model;

[0024] Figure 3 This is a three-dimensional schematic diagram of the rubber balloon in another embodiment of the pipe unclogging device of this utility model.

[0025] The attached figures are labeled as follows:

[0026] 100. Pipe cleaner; 10. Handle; 11. Hanging hole; 12. Mounting cavity; 20. Connecting rod; 21. First end; 22. Second end; 221. Connecting hole; 23. First rod body; 24. Second rod body; 25. Adjusting shaft; 26. Adjusting cavity; 30. Connector; 31. First connecting part; 32. Second connecting part; 321. Connecting post; 322. First annular flange; 323. Second annular flange; 33. Intermediate connecting part; 34. Cavity; 40. Rubber balloon; 41. Balloon body; 411. Proximal end; 412. Distal end; 413. Middle part; 42. Joint; 421. Stepped groove. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other alternative implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] This application provides a drain cleaner 100, which can unclog toilets or pipes, solving the problem of poor unclogging effect of existing drain cleaners.

[0029] like Figures 1A to 1H As shown, in one embodiment of the drain cleaner 100, the drain cleaner 100 includes a handle 10, a connecting rod 20, a connector 30, and a rubber balloon 40. The connecting rod 20 has a first end 21 and a second end 22 that are far apart from each other. The first end 21 of the connecting rod 20 is connected to the handle 10. The connector 30 has a first connecting portion 31 and a second connecting portion 32 that are far apart from each other. The first connecting portion 31 is connected to the second end 22 of the connecting rod 20. The rubber balloon 40 includes a hollow balloon body 41 and a connecting portion 42. The wall thickness of the balloon body 41 is 1-4 mm. The balloon body 41 has a proximal end 411, a distal end 412, and a middle portion 413. The proximal end 411 of the balloon body 41 is close to the connector 30. The cross-sectional dimension of the balloon body 41 gradually decreases in the direction from the middle portion 413 to the distal end 412. The connecting portion 42 is disposed at the proximal end 411 and is detachably connected to the second connecting portion 32.

[0030] In this embodiment, the rubber balloon 40 can fully contact the toilet drain or pipe opening to form a good sealing effect; the user uses a piston-like pulling method to create negative pressure at the toilet blockage or pipe opening, thereby achieving the purpose of unblocking the blockage; secondly, the joint 42 of the rubber balloon 40 is detachably connected to the second connecting part 32, making it easy to replace when the rubber balloon 40 is damaged; on the other hand, the rubber balloon 40 can be designed in various sizes, and the user can replace it with a suitable rubber balloon 40 model according to the size of the toilet drain or pipe opening, thereby improving the applicability of the drain cleaner 100.

[0031] like Figure 1C and Figure 1D As shown, in this embodiment, the handle 10 has a straight structure, and the end of the handle 10 away from the connecting rod 20 has a hanging hole 11, through which the drain cleaner 100 can be easily hung on the wall; in some embodiments, the drain cleaner 100 also includes a ring-shaped hanging rope, which passes through the hanging hole 11; the end of the handle 10 away from the hanging hole 11 is also provided with a mounting cavity 12, and the first end 21 of the connecting rod 20 passes through and is fixed in the mounting cavity 12 to achieve connection and fixation with the handle 10.

[0032] Furthermore, the handle 10 can be made of metal, such as steel or aluminum; or the handle 10 can be made of plastic, such as ABS (Acrylonitrile Butadiene Styrene); or the handle 10 can be made of wood.

[0033] like Figure 1C As shown, the handle 10 has a length L1 of 100-150 mm, a circular cross-section, and a diameter of 22-25 mm. The handle 10 also has a mounting cavity 12 that mates with the connecting rod 20, with a diameter of 18-20 mm. In some specific embodiments, the length L1 of the handle 10 is 100 mm, 120 mm, 130 mm, 150 mm, etc.; and the diameter of the mounting cavity 12 is 18 mm, 19 mm, 20 mm, etc.

[0034] Furthermore, in some other embodiments, the handle 10 is T-shaped to facilitate the user's grip and pull of the drain cleaner 100.

[0035] like Figure 1E As shown, in this embodiment, the connecting rod 20 has a tubular structure, and the material of the connecting rod 20 can be stainless steel, such as SUS303; in some other embodiments, the connecting rod 20 can also be a solid structure to enhance the overall strength of the connecting rod 20; preferably, the connecting rod 20 is straight; in some other embodiments, the connecting rod 20 can also be curved.

[0036] like Figure 1C As shown, when the connecting rod 20 is straight, the length L2 of the connecting rod 20 is 200~300mm, and the diameter of the connecting rod 20 is 18~20mm; in some specific embodiments, the length L2 of the connecting rod 20 is 200mm, 220mm, 250mm, 280mm, 300mm, etc.; and the diameter of the connecting rod 20 is 18mm, 19mm, 20mm, etc.

[0037] Furthermore, such as Figure 2 As shown, in some other embodiments, the connecting rod 20 includes a first rod body 23 and a second rod body 24 in its length direction. One of the first rod body 23 and the second rod body 24 has an adjusting shaft 25, and the other of the first rod body 23 and the second rod body 24 has an adjusting cavity 26. The adjusting shaft 25 is threadedly engaged with the adjusting cavity 26 to make the length of the connecting rod 20 adjustable. Specifically, in Figure 2 In the first rod 23, there is an adjusting shaft 25, and the second rod 24 has an adjusting cavity 26. When the user rotates the first rod 23 or the second rod 24, the length of the connecting rod 20 changes, thereby enabling the pipe cleaner 100 to clear blockages of different depths in the pipe.

[0038] Furthermore, such as Figure 1F and Figure 1G As shown, the connector 30 has a columnar structure and includes a first connecting part 31, an intermediate connecting part 33 and a second connecting part 32 along its length.

[0039] exist Figure 1E In the middle, the second end 22 of the connecting rod 20 has a connecting hole 221, and the first connecting part 31 is inserted and fixed in the connecting hole 221, thereby realizing the relative fixation between the connector 30 and the connecting rod 20.

[0040] Preferably, the cross-sectional dimension of the connector 30 is circular, the cross-sectional dimension of the first connecting part 31 is smaller than the cross-sectional dimension of the middle connecting part 33, and the cross-sectional dimension of the second connecting part 32 is smaller than the cross-sectional dimension of the first connecting part 31. That is, the diameter of the first connecting part 31 is smaller than the diameter of the middle connecting part 33, and the diameter of the second connecting part 32 is smaller than the diameter of the first connecting part 31.

[0041] Furthermore, such as Figure 1F and Figure 1H As shown, the second connecting part 32 has a stepped structure, and the connecting part 42 has a stepped groove 421 that is adapted to the second connecting part 32. The second connecting part 32 can be inserted and removed into the stepped groove 421, that is, the second connecting part 32 and the connecting part 42 can be inserted and removed, which facilitates the replacement of the rubber balloon 40.

[0042] like Figure 1H As shown, the connecting part 42 has a hollow cylindrical structure, and the wall thickness of the connecting part 42 is thicker than the wall thickness of the balloon body 41. For example, the wall thickness of the connecting part 42 is 5~10mm, so that the second connecting part 32 is more firmly connected to the connecting part 42.

[0043] like Figure 1F As shown, in this embodiment, the second connecting portion 32 includes a connecting post 321 and at least a first annular flange 322 and a second annular flange 323 disposed along the length direction of the connecting post 321. There is a gap between the first annular flange 322 and the second annular flange 323. The first annular flange 322 is located away from the free end of the connecting post 321, and the diameter of the first annular flange 322 is not less than the diameter of the second annular flange 323.

[0044] Preferably, in this embodiment, the diameter of the first annular flange 322 is larger than the diameter of the second annular flange 323; in some other embodiments, the diameter of the first annular flange 322 is equal to the diameter of the second annular flange 323; in some other embodiments, the second connecting portion 32 may also include more annular flanges, such as a third annular flange, a fourth annular flange, etc., to enhance the stability of the connection between the second connecting portion 32 and the connecting portion 42 and prevent the rubber balloon 40 from easily detaching from the second connecting portion 32.

[0045] In addition to being pluggable, in some other embodiments, the second connecting part 32 is a threaded shaft and the connecting part 42 has a threaded hole adapted to the threaded shaft; that is, the threaded hole of the second connecting part 32 and the connecting part 42 are threadedly connected.

[0046] Furthermore, such as Figure 1C As shown, the length L3 of the connector 30 is 40~60mm, the diameter of the first connecting part 31 is 18~20mm, and the diameter of the middle connecting part 33 is 20~24mm; the diameter of the first annular flange 322 is 14~16mm, and the diameter of the second annular flange 323 is 10~12mm; in some specific embodiments, the length L3 of the connector 30 is 40mm, 45mm, 50mm, 60mm, etc.; in one specific embodiment, the diameter of the first connecting part 31 is 19mm, the diameter of the middle connecting part 33 is 20mm, the diameter of the first annular flange 322 is 16mm, and the diameter of the second annular flange 323 is 14mm.

[0047] Furthermore, such as Figure 1G As shown, in order to reduce the weight of the connector 30, the connector 30 also has a cavity 34, which extends from the center of the first connecting portion 31 toward the second connecting portion 32 but does not penetrate the second connecting portion 32.

[0048] Furthermore, the connector 30 may be made of metal, such as steel or aluminum; or the connector 30 may be made of plastic, such as ABS (Acrylonitrile Butadiene Styrene).

[0049] Furthermore, such as Figure 1H As shown, the balloon body 41 is spherical in shape, with a larger middle and smaller ends. That is, the cross-sectional dimension of the balloon body 41 gradually decreases from the middle part 413 to the distal end 412, and the cross-sectional dimension of the balloon body 41 also gradually decreases from the middle part 413 to the proximal end 411.

[0050] like Figure 1C As shown, the length L4 of the balloon body 41 from the proximal end 411 to the distal end 412 is 100~140mm. In some specific embodiments, the length L4 of the balloon body 41 is 100mm, 120mm, or 140mm. The maximum diameter D1 of the balloon body 41 is 80~100mm. In some specific embodiments, the maximum diameter D1 of the balloon body 41 is 80, 90mm, or 100mm, etc. The rubber balloon 40 can be designed in various models according to the length L4 and diameter D1 of the balloon body 41.

[0051] Furthermore, the wall thickness of the balloon body 41 is 1~4mm, the material of the rubber balloon 40 is nitrile rubber, and the interior of the rubber balloon 40 is sealed.

[0052] like Figure 3As shown, in some other embodiments, the cross-sectional dimensions of the balloon body 41 are the same in the direction from the middle portion 413 to the proximal end portion 411, so that the proximal end portion 411 of the balloon body 41 can also make full contact with the toilet drain or pipe opening, thereby improving the sealing effect.

[0053] Furthermore, such as Figure 1C As shown, the overall length L5 of the drain cleaner 100 is 440~650mm; in some specific embodiments, the overall length L5 of the drain cleaner 100 is 500mm, 550mm, 600mm, etc.

[0054] Finally, it should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this application, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0055] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0056] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A pipe de-clogger, characterized in that, The drain cleaner includes: handle; A connecting rod; the connecting rod has a first end and a second end that are spaced apart from each other; the first end of the connecting rod is connected to the handle; A connector having a first connecting portion and a second connecting portion that are spaced apart from each other, the first connecting portion being connected to the second end of the connecting rod; A rubber balloon, the rubber balloon comprising: A hollow balloon body with a wall thickness of 1-4 mm; the balloon body has a proximal end, a distal end, and a middle part, the proximal end of the balloon body being close to the connector; the cross-sectional dimension of the balloon body gradually decreases from the middle part to the distal end. The rubber balloon also includes a connecting portion disposed at the proximal end and detachably connected to the second connecting portion.

2. The pipe cleaner according to claim 1, characterized in that, The second connecting portion has a stepped structure, and the connecting portion has a stepped groove adapted to the second connecting portion, the second connecting portion being insertable and detachable within the stepped groove; the second connecting portion includes: Connecting column; At least a first annular flange and a second annular flange are provided along the length direction of the connecting post, with a gap between the first annular flange and the second annular flange; and the first annular flange is located away from the free end of the connecting post, and the diameter of the first annular flange is not less than the diameter of the second annular flange.

3. The pipe cleaner according to claim 1, characterized in that, The cross-sectional dimensions of the balloon body gradually decrease in the direction from the middle portion to the proximal end portion; Alternatively, the cross-sectional dimensions of the balloon body are the same in the direction from the middle portion to the proximal end.

4. The pipe cleaner according to claim 1, characterized in that, The second connecting part is a threaded shaft, and the connecting part has a threaded hole that is adapted to the threaded shaft.

5. The drain cleaner according to any one of claims 1 to 4, characterized in that, The connector further includes an intermediate connecting portion disposed between the first connecting portion and the second connecting portion; both the first connecting portion and the intermediate connecting portion are columnar structures, and the cross-sectional dimension of the first connecting portion is smaller than the cross-sectional dimension of the intermediate connecting portion.

6. The pipe cleaner according to claim 5, characterized in that, The second end of the connecting rod has a connecting hole, and the first connecting part passes through and is fixed in the connecting hole.

7. The pipe cleaner according to claim 6, characterized in that, The connecting rod includes a first rod body and a second rod body in its length direction. One of the first rod body and the second rod body has an adjusting shaft, and the other of the first rod body and the second rod body has an adjusting cavity. The adjusting shaft is threaded into the adjusting cavity so that the length of the connecting rod is adjustable.

8. The pipe cleaner according to claim 5, characterized in that, The handle has a straight-line structure, and the end of the handle away from the connecting rod has a hanging hole.

9. The pipe cleaner according to claim 5, characterized in that, The handle has a T-shaped structure.

10. The pipe cleaner according to claim 5, characterized in that, The rubber balloon comes in various sizes and models; and / or, the rubber balloon is made of nitrile rubber.