Filtering device of underwater cleaning machine

Abstract

The utility model provides a filtering device of an underwater cleaning machine, the filtering device comprises a filtering main body and a filtering accessory which are independently arranged in sequence along the water outlet direction of a waterway, the filtering main body and the filtering accessory are used for filtering sewage in sequence, and the interior of a shell is divided into at least two spaces by the filtering accessory; and the filtering main body is arranged in one space. The utility model has the beneficial effects that the filtering main body is provided with the filtering frame and the top cover which are buckled and connected, the filtering frame and the top cover are both provided with the filtering nets, sewage can be filtered, the filtering frame can filter the sewage, and the top cover is arranged at the other end of the filtering frame, so that solid dirt is prevented from flowing out and being intercepted in the filtering main body, and the filtering effect is good. The filtering main body is simple in structure, can fully utilize the mounting space in the underwater cleaning device, and is convenient to mount and dismount.

Description

[0001] The application is a divisional application of application number 2023229747987, application date 2023.11.03, and patent name: underwater cleaning device TECHNICAL FIELD

[0002] The utility model belongs to the technical field of swimming pool cleaning, especially relates to a filter device of underwater cleaning machine. BACKGROUND

[0003] In the process of cleaning the swimming pool, the dirt is sucked into the filter device inside the swimming pool cleaner from the water inlet under the action of the impeller, and the filtered water is discharged from the water outlet. The solid dirt in the dirt is intercepted by the filter device and remains in the filter device. When the swimming pool cleaner stops working, the filter device is taken out from the inside of the swimming pool cleaner and the dirt is poured out. The existing filter device has a complex structure, occupies a large space inside the swimming pool cleaner, and causes waste of the internal space of the swimming pool cleaner, which is not convenient to install. SUMMARY

[0004] In view of the above problems, the utility model provides a filter device of underwater cleaning machine to solve the above or other former problems existing in the prior art.

[0005] To solve the above technical problems, the utility model adopts the technical scheme: a filter device of underwater cleaning machine, the filter device includes a filter main body and a filter accessory which are independently arranged in sequence along the water outlet direction of the waterway, and the sewage is filtered in sequence, and the filter accessory divides the inner shell into at least two spaces; the filter main body is arranged in one of the spaces.

[0006] Further, the filter accessory is provided with a filter element.

[0007] Further, the filter main body and the filter accessory are detachably connected with the shell.

[0008] Further, the filter accessory and the shell are connected by snap fit, sliding connection or insertion.

[0009] Further, the filter main body and the shell are connected by snap fit, sliding connection or insertion.

[0010] Further, the filter element is a filter screen and / or a sponge filter core.

[0011] Further, the thickness of the sponge filter core is greater than 1mm, and the pore size of the sponge filter core is 10-100PPI.

[0012] Further, the filter main body includes a filter frame and a top cover, the filter frame is connected with the top cover by snap fit, and the filter frame is detachably connected with the shell.

[0013] Further, the filter frame and / or the top cover are provided with a filter screen.

[0014] Further, the first filter is a filter screen.

[0015] With the above technical scheme, the filter device has a filter body, the filter body is provided with a filter frame and a top cover connected by buckling, the filter frame and the top cover are both provided with a filter screen, sewage can be filtered, one end of the filter frame is connected with a bottom side plate, a water inlet is arranged on the bottom side plate, sewage can enter the filter frame through the water inlet, the filter frame can filter the sewage, the top cover is arranged at the other end of the filter frame to avoid solid waste from flowing out, and the solid waste is intercepted in the filter body, the filter body has a simple structure, can fully utilize the installation space inside the underwater cleaning device, and is convenient to install and disassemble.

[0016] The filter device is provided with a filter accessory for secondary filtration of the sewage, the filter accessory is provided with a sponge filter core to adsorb while filtering the sewage, and the cleanliness of the filtered water is further improved.

[0017] A sealing element is arranged at the contact position of the filter accessory and the bottom plate of the shell body to seal the contact position of the filter accessory and the bottom plate of the shell body, avoid the sewage from flowing out from the contact position of the filter accessory and the bottom plate of the shell body without being filtered by the filter accessory, and the sealing element has an elastic element to be elastically deformed during installation of the filter accessory to seal the installation position of the filter accessory. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure schematic view of an underwater cleaning device of an embodiment of the utility model (only showing a shell body, a filter body and a filter accessory);

[0019] Figure 2 is a partial structure schematic view of an underwater cleaning device of an embodiment of the utility model (only showing a shell body and a filter accessory);

[0020] Figure 3 is a structure schematic view of a filter body of an embodiment of the utility model;

[0021] Figure 4 is a structure schematic view of an underwater cleaning device of an embodiment of the utility model from another angle;

[0022] Figure 5 is a sectional structure schematic view of an underwater cleaning device of an embodiment of the utility model;

[0023] Figure 6 is another structure schematic view of a filter device of an underwater cleaning device of an embodiment of the utility model.

[0024] In the drawings:

[0025] 1. Housing; 2. Filter accessories; 3. Filter body; 4. Seal; 10. Guide block; 11. Support rib; 20. Guide groove; 30. Filter frame; 31. Top cover; 300. Filter hole; 5. Filter element. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 A schematic diagram of an embodiment of the present invention is shown. This embodiment relates to a filtration device for an underwater cleaning machine, used for cleaning swimming pools. The underwater cleaning machine has a filtration device installed inside. During underwater cleaning and operation, sewage enters the filtration device, and the filtered water is discharged from the outlet of the underwater cleaning device. Solid waste is trapped and remains in the filtration device. The filtration device has a simple structure and is easy to install and disassemble.

[0028] An underwater cleaning device, such as Figures 1-5 As shown, it includes a housing 1 and a filter device disposed inside the housing 1. The filter device includes a filter body 3 and a filter accessory 2 arranged sequentially along the water outlet direction. Wastewater enters the filter body 3 from the inlet of the housing 1, is filtered by the filter body 3, enters the filter accessory 2, is filtered again by the filter accessory 2, and is discharged from the outlet of the housing 1. Solid waste in the wastewater is intercepted by the filter body 3 and the filter accessory 2.

[0029] The filter accessory 2 is provided with a filter element 5, or the filter accessory 2 and the filter body 3 are provided with a filter element 5, and the selection and setting are made according to the structure of the filter accessory 2 and the filter body 3.

[0030] The filter attachment 2 divides the interior of the housing into at least two spaces. The filter attachment 2 is located on at least one side of the exterior of the filter body 3. That is, the filter body 3 is located in any space on at least one side of the filter attachment 2. The filter attachment 2 can be sealed to the inner wall of the housing 1 to prevent small solid contaminants such as mud and sand from leaking out from the gap between the filter attachment 2 and the housing 1.

[0031] The filter accessory 2 can be slidably connected to the housing 1, allowing the filter accessory 2 to be accurately and quickly installed inside the housing 1. This facilitates the quick installation and removal of the filter accessory 2 and enhances the sealing between the filter accessory 2 and the housing 1, preventing solid impurities (such as sand) in the dirt from leaking out through the gap at the contact point between the filter accessory 2 and the housing 1. Alternatively, a sealing element, such as a sealing ring, can be provided at the contact point between the filter accessory 2 and the housing 1 to increase the sealing performance at the contact point.

[0032] The filtering main body 3 comprises a filtering frame 30 and a top cover 31 connected by snap fit, forming a box-shaped structure or a box body structure, and the solid waste is stored. The top cover 31 is arranged to prevent the solid waste from flowing out of the filtering frame 30. The filtering frame 30 is connected to the shell 1 and communicates with the water inlet of the shell 1. The sewage enters the filtering frame 30 through the water inlet, so that the filtering frame 30 can filter the sewage. In another possible embodiment, the top cover 31 is part of the shell, and when the shell is closed, it is directly snap-fitted with the filtering frame 30.

[0033] Specifically, as shown in Figure 1 and 3 The filtering frame 30 is fixedly connected to the bottom plate, and the filtering frame 30 has a bottom side plate for facilitating installation of the water inlet assembly. The bottom side plate of the filtering frame 30 is in contact with the bottom plate of the shell 1. The bottom side plate of the filtering frame 30 is provided with a mounting hole, and the water inlet assembly is installed at the mounting hole. The water inlet assembly is located inside the filtering frame 30. A water inlet is arranged on the bottom plate of the shell 1. The mounting hole corresponds to the water inlet hole, so that the sewage enters the inside of the filtering frame 30 through the water inlet and the water inlet assembly. At the same time, the filtering frame 30 is conveniently installed on the bottom plate of the shell 1. The bottom plate of the shell 1 and the filtering frame 30 can be connected by bolts or other connecting members, or be integrally formed, or be connected by other fixed connection methods. The actual requirements are selected and arranged, and no specific requirements are made here.

[0034] The end of the filtering frame 30 away from the bottom plate of the shell 1 is an open structure, and the top cover 31 is arranged at the end of the filtering frame 30. The top cover 31 is snap-fitted with the filtering frame 30. The top cover 31 can be provided with a plug-in hole, and the filtering frame 30 can be provided with a protrusion at a corresponding position. When the top cover 31 is snap-fitted with the filtering frame 30, the protrusion is plugged into the plug-in hole, thereby achieving snap-fit connection of the filtering frame 30 and the top cover 31. Alternatively, the filtering frame 30 can be provided with a plug-in hole, and the top cover 31 can be provided with a protrusion at a corresponding position. When the top cover 31 is snap-fitted with the filtering frame 30, the protrusion is plugged into the plug-in hole, thereby achieving snap-fit connection of the filtering frame 30 and the top cover 31.

[0035] The filtering frame 30 and the top cover 31 are each provided with a plurality of filtering holes 300. Specifically, the filtering frame 30 is a frame structure with filtering holes 300. The filtering holes 300 are arranged on each side of the filtering frame 30. On any side of the filtering frame 30, the plurality of filtering holes 300 can be arranged in multiple rows and multiple columns along the length direction and the width direction of the side, or can be arranged in a radial manner, or can be arranged in other manners. The actual requirements are selected, and no specific requirements are made here. In this embodiment, preferably, the filtering frame 30 is provided with a plurality of filtering holes 300 on the circumferential side of the annular structure, and the bottom side is not provided with an opening.

[0036] The height of each circumferential side surface of the filter frame 30 can be consistent or different, which is selected according to actual needs, and no specific requirements are made herein. In the embodiment, preferably, the filter frame 30 is integrally injection molded, and a plurality of filter holes 300 are formed on each circumferential side surface according to a pre-designed structure, so that each circumferential side surface has a plurality of filter holes 300.

[0037] The top cover 31 is a cover structure having a plurality of filter holes 300, which are arranged on the side surface of the top cover 31 facing the filter frame 30. The plurality of filter holes 300 can be arranged in multiple rows and multiple columns along the length direction and the width direction of the side surface, or can be arranged in a radial manner, or other arrangement manners, which are selected according to actual needs, and no specific requirements are made herein. A handle is arranged on the side surface of the top cover 31 away from the filter frame 30. By holding the handle, the filter device can be taken out of the shell 1 and conveniently installed in the shell 1.

[0038] In the embodiment, preferably, the filter hole 300 is a through hole.

[0039] Alternatively, the filter body 3 is a plate structure, and a plurality of filter holes 300 are arranged on the filter body 3. The shape of the filter body 3 is adapted to the internal shape of the shell 1.

[0040] The filter frame 30 and / or the top cover 31 is provided with a first filter element, that is, the first filter element can be arranged on the filter frame 30, or the first filter element can be arranged on the top cover 31, or the first filter element can be arranged on both the filter frame 30 and the top cover 31, which is selected according to actual needs. The first filter element is arranged on the inner side surface of the filter frame 30 and the top cover 31 or at the filter hole 300. The first filter element can be arranged at each filter hole 300 of the filter frame 30 and the top cover 31. At this time, the number of the first filter element is multiple, and one first filter element is arranged at each filter hole 300. Alternatively, the first filter element is an integral structure, which is fixedly installed on the inner wall of the circumferential side surface of the filter frame 30 and the inner side surface of the top cover 31. The sewage passes through the first filter element, and the solid impurities are intercepted, so that the sewage is filtered.

[0041] In the embodiment, preferably, the first filter element is a filter screen.

[0042] Support ribs 11 are provided on the inner wall of the housing 1. The support ribs 11 are plate-shaped structures and are arranged along the height direction of the housing 1. There are multiple support ribs 11, which are arranged along the length direction of the housing 1. When the filter body 3 is installed, after it is inserted into the housing 1, the filter frame 30 contacts the support ribs 11, which fixes and supports the filter body 3. At the same time, it increases the gap between the filter body 3 and the side wall of the housing 1, which facilitates the outflow of filtered water and strengthens the housing 1. In this embodiment, the support ribs 11 are arranged on a set of opposing inner surfaces of the housing 1.

[0043] The filter body 3 has a box structure and is in contact with the housing 1 of the underwater cleaning device. When the filter device is installed inside the underwater cleaning device, the sewage entering the filter body 3 is filtered through the filter screens on the sides of the filter frame 30 and the top cover 31 and then flows out. Solid dirt is trapped inside the filter body 3 so that the water flowing out of the filter body 3 is filtered water.

[0044] Further optimize the plan, such as Figure 1 and 2 As shown, filter accessory 2 can be fixedly connected to filter body 3, or filter accessory 2 can be in contact with filter body 3, or, as... Figure 6 As shown, the filter accessory 2 is fastened to the filter body 3, or other connection methods are used, depending on actual needs. No specific requirements are made here. The filter accessory 2 is located on the outside of the filter body 3 to further filter the filtered water and further purify the water filtered by the filter body 3.

[0045] The aforementioned filter accessory 2 is equipped with a filter element 5, which filters the water again after it has been filtered by the filter body 3. The filter accessory 2 also includes an installation frame, in which the filter element 5 is housed. The installation frame serves as a skeleton to facilitate the installation of the filter element 5.

[0046] In some feasible embodiments, the mounting frame includes a side plate and an annular circumferential side plate disposed on one side of the side plate. The side plate and the annular circumferential side plate form a receiving space, in which the filter element 5 is disposed. In this structure, the filter accessory 2 contacts and engages with the filter body 3.

[0047] In other feasible embodiments, such as Figure 6 As shown, the mounting frame is a plate-like structure, and its shape is adapted to the internal shape of the housing 1. The mounting frame is provided with multiple filter holes 300. The mounting frame is fastened to the filter body 3. The filter element 5 is located between the filter frame and the filter body 3. Through the fastening connection, the filter element 5 is fixed between the filter frame and the filter body 3. In this structure, both the filter body 3 and the filter accessory 2 are fastened to the housing 1.

[0048] In this embodiment, preferably, the filter element 5 is a sponge filter core. The sponge filter core can adsorb while filtering, so even very small pieces of garbage can be filtered out.

[0049] In this embodiment, preferably, the number of pores in the sponge filter core is 30-60 PPI, where PPI refers to the number of pores per square inch, and the thickness of the sponge filter core is greater than 1 mm, preferably 1-20 mm.

[0050] When the filter accessory 2 is slidably connected to the housing 1, a set of oppositely arranged side walls of the housing 1 are provided with guide blocks 10, and a set of oppositely arranged side walls of the filter accessory 2 are provided with guide grooves 20. The guide blocks 10 and guide grooves 20 are inserted into each other so that the filter accessory 2 can slide along the guide blocks 10. When installing the filter accessory 2, the guide blocks 10 are inserted into the guide grooves 20 to apply force to the filter accessory 2, which can press the filter accessory 2 into the housing 1, so as to achieve accurate positioning and quick installation of the filter accessory 2. At the same time, the guide blocks 10 limit the movement of the filter accessory 2 along the length direction of the housing 1 to prevent the filter accessory 2 from deviating. The guide groove 20 is a groove structure, which is set on the two sides of the mounting frame of the filter accessory 2 facing the inner wall of the housing 1. It is formed by indentation from the side and the guide groove 20 is set along the length of the mounting frame. The guide block 10 is a protruding structure, which is installed on the inner wall of the housing 1 facing the guide groove 20 and protrudes from the inner wall of the housing 1. The protrusion on the inner wall of the housing 1 can block the gap between the filter accessory 2 and the inner wall of the housing 1, enhance the sealing between the filter accessory 2 and the housing 1, and prevent solid impurities in the sewage from leaking out from the gap between the filter accessory 2 and the inner wall of the housing 1.

[0051] like Figure 4 and 5 As shown, a sealing element 4 is provided at the contact point between the filter accessory 2 and the bottom plate of the housing 1 to seal the contact point between the filter accessory 2 and the bottom plate of the housing 1, preventing sewage from flowing through the contact point between the filter accessory 2 and the bottom plate of the housing 1 without being filtered by the filter accessory 2. At the same time, the sealing element 4 is elastic. When the filter accessory 2 is installed, the sealing element 4 is compressed and can undergo elastic deformation to seal the contact point between the filter accessory 2 and the bottom plate of the housing 1. When the filter accessory 2 is removed, the sealing element 4 applies elastic force to the filter accessory 2 under the action of elastic deformation, and the filter accessory 2 is separated from the bottom plate of the housing 1, which facilitates the disassembly of the filter accessory 2.

[0052] The filter accessory 2 can be plugged into the bottom plate of the housing 1. A groove is provided on the bottom plate of the housing 1, and the filter accessory 2 is plugged into the groove, with the seal 4 installed in the groove; or, the seal 4 is installed on the end of the filter accessory 2 facing the bottom plate of the housing 1. After the filter accessory 2 is installed, the seal 4 contacts the bottom plate, and the seal 4 seals the contact point between the filter accessory 2 and the bottom plate of the housing 1. Other installation methods may also be used, depending on actual needs. No specific requirements are specified here.

[0053] In this embodiment, preferably, the sealing element 4 is a sealing strip.

[0054] When the underwater cleaning device is in operation, taking the filter body 3 as an example of the filter frame structure, the inlet assembly is installed at the inlet of the filter body 3, and the inlet assembly is located inside the filter body 3 (when the filter body 3 is a plate structure, the inlet assembly is installed at the inlet of the housing 1). The filter frame 30 is fastened to the top cover 31, and then the filter body 3 with the inlet assembly is installed inside the underwater cleaning device. The inlet on the bottom plate is aligned with the inlet of the inlet assembly so that sewage can enter the filter body 3. The guide groove 20 of the filter accessory 2 corresponds to the guide block 10 of the housing 1. The guide block 10 is inserted into the guide groove 20, and a force is applied to the filter accessory 2. The filter accessory 2 slides along the guide block 10 and is installed inside the housing 1.

[0055] The underwater cleaning device is placed underwater to perform cleaning operations. The cleaning roller brushes the bottom and walls of the pool. The sewage is pushed open by the impeller's suction and enters the filter body 3. After being filtered by the first filter element of the filter body 3, the filtered water is filtered again by the filter element 5 of the filter accessory 2. The filtered water is discharged from the outlet of the underwater cleaning device, and solid dirt is trapped in the filter body 3.

[0056] After the underwater cleaning device stops working, the valve device is returned to its original position, the inlet is sealed, and the filter device is removed for cleaning so that it can be used again.

[0057] Due to the adoption of the above technical solution, the filtration device has a filter body, which is equipped with a filter frame and a top cover that are snapped together. Both the filter frame and the top cover are equipped with filter screens to filter sewage. One end of the filter frame is connected to a bottom side plate, and the bottom side plate is equipped with a water inlet. Sewage can enter the filter frame through the water inlet, and the filter frame can filter the sewage. The top cover is located at the other end of the filter frame to prevent solid waste from flowing out. Solid waste is trapped in the filter body. The filter body has a simple structure, can make full use of the internal installation space of the underwater cleaning device, and is easy to install and disassemble. The filtration device is equipped with a filter accessory for secondary filtration of sewage. The filter accessory is equipped with a sponge filter element, which absorbs while filtering sewage, further improving the cleanliness of the filtered water. A sealing element is provided at the contact point between the filter accessory and the bottom plate of the housing to seal the contact point between the filter accessory and the bottom plate of the housing, preventing sewage from flowing out from the contact point between the filter accessory and the bottom plate of the housing without being filtered by the filter accessory. The sealing element has an elastic element that undergoes elastic deformation during the installation of the filter accessory to seal the installation position of the filter accessory.

[0058] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A filtering device for an underwater cleaning machine, characterized in that, The filter device comprises a filter main body and a filter accessory which are arranged independently in sequence along the water outlet direction of the water channel, and sequentially filter the sewage, and the filter accessory divides the inner part of the shell into at least two spaces, and the filter main body is arranged in one of the spaces.

2. The filtering device of an underwater cleaner according to claim 1, characterized in that, The filter accessory is provided with a filter element.

3. The filtering device of an underwater cleaner according to claim 1, wherein, The filter main body and the filter accessory are detachably connected with the shell.

4. The filtering device of an underwater cleaning machine according to claim 3, characterized in that, The filter accessory and the shell are connected by buckling, sliding or inserting.

5. The filtering device of the underwater cleaner according to claim 3, wherein, The filter main body and the shell are connected by buckling, sliding or inserting.

6. The filtration device of the underwater cleaner of claim 2, wherein, The filter element is a filter screen and / or a sponge filter core.

7. The filtering device of an underwater cleaning machine according to claim 6, characterized in that, The thickness of the sponge filter core is greater than 1 mm, and the pore size of the sponge filter core is 10-100 PPI.

8. The filtration device of the underwater cleaner of claim 1, wherein, The filter main body comprises a filter frame and a top cover, the filter frame is connected with the top cover by buckling, and the filter frame is detachably connected with the shell.

9. The filtering device of an underwater cleaner according to claim 8, characterized in that, The filter frame and / or the top cover are provided with a filter screen.

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