Improved cavity and underwater sewage suction machine thereof
By installing baffles on the inner wall of the cavity, particles are prevented from entering the gaps, solving the problem of the cavity being unable to be disassembled and extending the service life of the underwater vacuum cleaner.
Patent Information
- Application Number
- CN202520568784.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-28
AI Technical Summary
The cavity of existing underwater vacuum cleaners is prone to damage during use due to particles entering the gaps, making it impossible to disassemble and affecting its service life.
Baffles are installed on the inner wall of the cavity body to prevent particles from entering the gap between the cavity and the vacuum cleaner housing. The first and second arc-shaped baffles are non-enclosed for easy installation.
It effectively prevents particles from entering the gaps, prevents damage to the cavity, ensures reliable disassembly of the cavity, and extends its service life.
Smart Images

Figure CN223937776U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underwater cleaning equipment technology, and in particular to an improved cavity and its underwater suction machine. Background Technology
[0002] After a period of use, a lot of solid particles such as pebbles, fine sand and other impurities will accumulate in the pool, so it needs to be cleaned regularly. As a result, underwater cleaning devices have been developed, and underwater vacuum cleaners are one of them.
[0003] In the prior art, an underwater vacuum cleaner includes a vacuum cleaner housing, a brush head assembly for cleaning water, and a power unit for providing cleaning power. A cavity is provided between the brush head assembly and the vacuum cleaner housing. One end of the cavity is connected to the vacuum cleaner housing by a rotating buckle, and the other end of the cavity is detachably connected to the brush head assembly. The brush head assembly has an opening. The power unit includes a motor located in the vacuum cleaner housing and an impeller located in the cavity. During operation, the motor rotates, driving the impeller to rotate at high speed. Under the action of centrifugal force generated by the high-speed rotation of the impeller, the water in the cavity flows through the impeller and is thrown towards the outlet of the cavity, creating a vacuum at the impeller. The water in the pool is drawn back into the cavity under the action of pressure difference. At the same time, solid particles and other impurities in the pool are also drawn in. Because there is a gap between the vacuum cleaner housing and the cavity, these particles can easily enter the gap, making it impossible to disassemble the cavity. If it is forcibly disassembled, it may damage the cavity.
[0004] Therefore, existing technologies need to be improved and enhanced. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an improved cavity that reduces the amount of particulate matter entering the gap, ensures the installation and disassembly of the cavity, and improves its service life.
[0006] Another objective of this invention is to provide an underwater sludge suction machine with the aforementioned improved cavity.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] An improved cavity includes a cavity body, wherein a baffle is provided on the inner wall surface of the cavity body to prevent most particles from entering the gap between the cavity body and the vacuum cleaner housing.
[0009] As a further embodiment of this utility model, the baffle is arranged along the gap between the cavity body and the vacuum cleaner housing.
[0010] As a further embodiment of this utility model, the baffle is a non-enclosed design.
[0011] As a further embodiment of this utility model, the baffle includes a horizontally arranged first arc-shaped baffle and an inclined second arc-shaped baffle, wherein the first arc-shaped baffle and the second arc-shaped baffle are integrally formed.
[0012] This utility model also includes an underwater sewage suction machine with the above-mentioned improved cavity.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] Due to the above-mentioned structural design, namely the baffle plate on the inner wall of the cavity body, most particles are prevented from entering the gap between the cavity body and the vacuum cleaner housing, thus preventing the cavity from becoming unremovable and damaged, and improving its service life. Attached Figure Description
[0015] Appendix Figure 1 This is a schematic diagram of the improved cavity structure according to an embodiment of the present invention;
[0016] Appendix Figure 2 This is a side view of the improved cavity according to an embodiment of the present invention;
[0017] Appendix Figure 3 This is a schematic diagram of the underwater sewage suction machine according to an embodiment of the present invention.
[0018] The labels in the diagram are as follows:
[0019] 1-Underwater sludge suction machine;
[0020] 10 - Cavity body; 20 - Vacuum cleaner housing;
[0021] 11-Baffle;
[0022] 111 - First arc-shaped baffle, 112 - Second arc-shaped baffle. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings:
[0024] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.
[0025] In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., 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 mechanical connection or an electrical 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 application according to the specific circumstances.
[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example
[0027] like Figure 1 and Figure 3As shown, this application discloses an improved cavity, including a cavity body 10. A baffle 11 is provided on the inner wall of the cavity body 10 to prevent most particles from entering the gap between the cavity body 10 and the vacuum cleaner housing 20. Specifically, normally one end of the cavity body 10 is connected to the vacuum cleaner housing 20 by a rotating snap-fit structure. The rotating snap-fit structure includes an elastic snap provided on the wall of the vacuum cleaner housing 20 and a corresponding rotating snap provided on the inner wall of the cavity body 10. The mounting bracket creates a gap between the cavity body 10 and the vacuum cleaner housing 20. The baffle 11 is arranged along the opening of the gap between the cavity body 10 and the vacuum cleaner housing 20. Therefore, when the underwater vacuum cleaner 1 is working, most of the particles in the water cannot enter the gap between the cavity body 10 and the vacuum cleaner housing 20 because of the baffle 11. The cavity body 10 will not be unable to be removed from the vacuum cleaner housing 20 due to the presence of particles in the gap, thus ensuring the service life of the cavity body 10.
[0028] In this specific implementation, since the cavity body 10 and the vacuum cleaner housing 20 are connected by a rotating snap-fit structure, the baffle 11 is a non-enclosed design. Specifically, the baffle 11 includes a horizontally arranged first arc-shaped baffle 111 and an inclined second arc-shaped baffle 112. The first arc-shaped baffle 111 and the second arc-shaped baffle 112 are integrally formed, that is, no baffle is provided at either of the snap-fit positions, so as to facilitate the installation of the cavity body and the vacuum cleaner housing.
[0029] Please see Figure 2 and Figure 3 This application also includes an underwater vacuum cleaner with the above-mentioned improved cavity. Because a baffle is provided at the gap opening between the cavity body 10 and the vacuum cleaner housing 20, most particles in the water cannot enter the gap between the cavity body 10 and the vacuum cleaner housing 20, which will prevent the cavity from being disassembled and damaged, thus improving its service life.
[0030] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, long lifespan, and strong practicality.
[0031] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.
Claims
1. An improved cavity, comprising a cavity body, characterized in that: A baffle is provided on the inner wall of the cavity body to prevent most particles from entering the gap between the cavity body and the vacuum cleaner housing.
2. The improved cavity according to claim 1, characterized in that: The baffle is arranged along the gap between the cavity body and the vacuum cleaner housing.
3. The improved cavity according to claim 2, characterized in that: The baffle is a non-enclosed design.
4. The improved cavity according to claim 3, characterized in that: The baffle includes a horizontally arranged first arc-shaped baffle and an inclined second arc-shaped baffle, the first arc-shaped baffle and the second arc-shaped baffle are integrally formed.
5. An underwater sludge suction machine, characterized in that: Includes the improved cavity as described in any one of claims 1-4.