Sand blocking prevention structure for filter element cover of underwater dust collector

Abstract

The utility model discloses an underwater dust collector filter element cover sand blocking prevention structure which comprises a filtering system capable of achieving solid-liquid separation and a driving system providing negative pressure suction force for the filtering system. A sand blocking prevention structure capable of preventing sand filtered out from the filtering system from entering a gap between the filtering system and the driving system is arranged between the filtering system and the driving system. According to the underwater dust collector, the gap between the driving system and the filtering system of the underwater dust collector can be shielded and sealed, gravel filtered out of the filtering system is prevented from entering the gap between the driving system and the filtering system to damage parts, meanwhile, the overall sealing performance is enhanced, the service life of the underwater dust collector can be prolonged, and the working quality of the underwater dust collector can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaners, in particular to a sand-jamming prevention structure for a filter element cover of an underwater vacuum cleaner. Background Art

[0002] An underwater vacuum cleaner is a device used to clean underwater areas. It is driven by an electric motor or pneumatic motor to generate negative pressure to suck in underwater pollutants, causing the pollutants to enter the filtration system along with the liquid. The pollutants in the liquid are blocked and filtered by the filter medium in the filtration system, so that the liquid is discharged and the pollutants are blocked in the filtration system of the vacuum cleaner, thereby achieving the purpose of cleaning the underwater area. It can help remove underwater dirt, debris, suspended matter and other pollutants, thereby maintaining clean water quality and a healthy environment.

[0003] After searching, it was learned that the Chinese patent with announcement number CN208228904U discloses a vacuum cleaner suitable for underwater operations, including a rear body equipped with a pump body device and a filter device, and a front body installed at the front end of the rear body and used to transport dirt, the tail end of the pump body device is connected to a power supply component, the filter device is a cover-shaped structure and is connected to the tail end of the rear body, the inner wall of the body is provided with a support frame for fixing the pump body device, the support frame is provided with a channel for garbage to pass through, the pump body device includes an impeller for creating negative pressure, a one-way valve is provided between the filter device and the impeller, and a garbage bin for storing dirt is formed between the filter device and the one-way valve; it has the advantages of reasonable layout, stable operation, compact and convenient, large garbage storage capacity and can meet the needs of underwater operations.

[0004] According to the above-mentioned comparative documents, it can be learned that the outer shells of the filtering system and the power system that generates negative pressure suction on a general underwater vacuum cleaner are designed to be detachable, so that the filter material in the filtering system can be easily replaced. However, although this detachable design of the two-part outer shell can facilitate the replacement of the filter material in the filtering system, it will also result in a connecting gap between the two parts of the outer shell. During operation, the filtered fine sand and gravel can easily enter the connecting gap between the two parts of the outer shell, which not only affects the overall sealing, but also increases the difficulty of subsequent cleaning, and easily causes damage to the components in the vacuum cleaner. For this reason, it is urgently necessary to provide an underwater vacuum cleaner filter element cover anti-sand jamming structure to solve the problem of easy sand jam in today's underwater vacuum cleaners. Utility Model Content

[0005] The utility model aims to provide a sand-preventing structure for a filter element cover of an underwater vacuum cleaner, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-sand jamming structure for a filter element cover of an underwater vacuum cleaner, comprising a filtration system capable of realizing solid-liquid separation and a driving system that provides negative pressure suction to the filtration system, wherein an anti-sand jamming structure is provided between the filtration system and the driving system to prevent sand and gravel filtered out of the filtration system from entering a gap between the filtration system and the driving system.

[0007] Preferably, the filtration system comprises a filter element cover and a detachable filter medium arranged inside the filter element cover, and the drive system comprises a drive housing and a drive component arranged in the drive housing for providing negative pressure suction inside the filter element cover.

[0008] Preferably, the anti-sand jamming structure includes an annular groove opened on the side of the driver housing facing the filter cover and a sealing ring movably embedded in the annular groove, and the sealing ring is flush with the side of the driver housing facing the filter cover.

[0009] Preferably, a side ear plate is fixedly provided on the outer wall of the driver housing, a clamping block is fixedly provided on the outer wall of the filter element cover, and a clamping groove matching the clamping block is opened on the inner side of the side ear plate.

[0010] Preferably, the driver housing is composed of a housing base and a housing connecting seat, the annular groove is opened on the side of the housing connecting seat away from the housing base, the side ear plate is fixedly arranged on the side wall of the housing connecting seat, an arc through hole connected with both sides of the housing connecting seat is opened on the inner side of the annular groove, and an arc stop bar is fixedly arranged at a position corresponding to the arc through hole on one side of the housing base for sealing the arc through hole.

[0011] Preferably, a side ear groove is formed on the side wall of the shell base, and a positioning ear block is fixedly connected to the inner side wall of the shell connecting seat, and the positioning ear block is movably plugged into the side ear groove.

[0012] Preferably, a water inlet pipe and a water outlet hole are respectively provided on the filter element cover body for the inlet and outlet of liquid, and a water inlet pipe body is sleeved on the end of the water inlet pipe for the transportation of liquid.

[0013] Preferably, the water inlet pipe body comprises a corrugated pipe, and two ends of the corrugated pipe are respectively fixedly provided with a connecting pipe head 1 and a connecting pipe head 2 which are connected thereto, and the inner side of the connecting pipe head 1 is movably plugged into the outer wall of the water inlet pipe.

[0014] Preferably, a rotatable internally threaded end cap is provided at the end of the connecting pipe head, an externally threaded sleeve is provided at the end fixing sleeve of the outer wall of the water inlet pipe close to the filter element cover, and the inner side of the internally threaded end cap is threadedly connected to the outer wall of the externally threaded sleeve.

[0015] Preferably, an annular groove is formed on the outer wall of the water inlet pipe, an O-ring is sleeved in the annular groove, a connecting ring is fixedly provided at the end surface of the filter cover body corresponding to the water inlet pipe, and a reinforcing plate is fixedly connected between the connecting ring body and the outer wall of the filter cover body.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model can shield and seal the gap between the driving system and the filtering system of the underwater vacuum cleaner, thereby preventing sand and gravel filtered out of the filtering system from entering the gap between the two and causing damage to components, while enhancing the overall sealing performance, which helps to improve the service life and working quality of the underwater vacuum cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the split structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the split structure of the driver housing body and the sealing ring of the utility model.

[0021] Figure 4 It is a schematic diagram of the split structure of the driver housing of the utility model.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the shell base of the utility model.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the shell connecting seat of the utility model.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the filter element cover of the utility model.

[0025] Figure 8 It is a front cross-sectional structural schematic diagram of the connecting sleeve and the water inlet pipe of the utility model.

[0026] In the figure: 100, driver housing; 101, housing base; 102, housing connection seat; 103, side ear plate; 104, snap-in groove; 105, side ear groove; 106, positioning ear block; 107, arc through hole; 108, arc retaining bar; 109, annular groove; 200, filter element cover; 201, water inlet pipe; 202, water outlet hole; 203, externally threaded sleeve; 204, annular groove; 205, O-ring; 206, connecting ring body; 207, reinforcement sheet; 208, snap-in block; 300, water inlet pipe body; 301, bellows; 302, connecting pipe head 1; 303, connecting pipe head 2; 304, internally threaded end cap; 400, sealing ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model provides Figure 1-8The anti-sand jamming structure of the filter cover of an underwater vacuum cleaner shown in the figure includes a filtering system that can realize solid-liquid separation and a driving system that provides negative pressure suction to the filtering system. The driving system generates negative pressure suction in the filtering system, so that the filtering system can extract liquid after being extended underwater. The liquid extracted into the filtering system is filtered to separate the pollutants contained therein, and then discharged from the water outlet of the filtering system, thereby separating the pollutants contained in the underwater liquid and achieving the purpose of cleaning. The filtering system includes a filter cover body 200 and a detachable filter medium arranged inside the filter cover body 200. The filter medium can adopt a metal wire filter mesh commonly used in the market, and of course, it can also adopt existing filtering materials such as sponges. The filter medium The filter medium is detachably installed in the filter cover 200, and the filter medium can be installed and fixed in the filter cover 200 by means of snap-fit ​​connection or bolt locking. The filter cover 200 is respectively provided with a water inlet pipe 201 and a water outlet hole 202 for the inlet and outlet of liquid. The end of the water inlet pipe 201 is sleeved with a water inlet pipe body 300 for the transportation of liquid. The water inlet pipe 201 cooperates with the water inlet pipe body 300 to facilitate the transportation of liquid by extending the water inlet pipe body 300 into the water, and the water outlet hole 202 allows the liquid in the filter cover 200 to be discharged after filtration, so that it is convenient to carry out cleaning operations underwater at a deeper or farther position. The drive system includes a drive housing 100 and a drive housing 100 provided in the drive housing 100 for the filter cover 200. The driving component in the driver housing 100 can be composed of a driving motor and a worm gear blade. The driving motor drives the worm gear blade to rotate, thereby generating a negative pressure suction effect in the filter element cover 200. The driving motor is located inside the driver housing 100, and the worm gear blade is located inside the filter element cover 200. The end surface of the driver housing 100 facing the worm gear blade is sealed, and a through hole is provided in the middle for the worm gear blade to be rotatably installed. The worm gear blade is also connected to the installation through hole by a mechanical seal, so that the worm gear blade can rotate while achieving a seal with the driver housing 100. An anti-stuck device is provided between the filtration system and the drive system to prevent sand and gravel filtered out of the filtration system from entering the gap between the filtration system and the drive system. The anti-sand jam structure is arranged at the connection position between the driver housing 100 and the filter cover 200 of the driving system and the filtering system, which can prevent the fine sand and gravel filtered out of the filter cover 200 from entering the gap between the driver housing 100 and the filter cover 200, and has higher safety protection, which helps to extend the service life of the vacuum cleaner and improve the working quality of the vacuum cleaner. The anti-sand jam structure includes an annular groove 109 provided on the side of the driver housing 100 facing the filter cover 200 and a sealing ring 400 movably embedded in the annular groove 109. The sealing ring 400 is flush with the side of the driver housing 100 facing the filter cover 200, and the sealing ring 400 is installed in the annular groove 109 on the end face of the driver housing 100.After the end face of the driver housing 100 is butted against the end face of the filter element cover 200 and locked, the end face of the sealing ring 400 is flush with the end face of the driver housing 100, so that the gap between the driver housing 100 and the filter element cover 200 can be made tighter and more airtight, which has a good blocking effect on fine sand and achieves the effect of preventing sand from getting stuck;

[0029] In some embodiments, a side ear plate 103 is fixedly provided on the outer wall of the driver housing 100, a snap-in block 208 is fixedly provided on the outer wall of the filter element cover 200, and a snap-in groove 104 matching the snap-in block 208 is opened on the inner side of the side ear plate 103. After the end faces of the driver housing 100 and the filter element cover 200 are butted together, the two only need to be rotated relative to each other so that the side snap-in block 208 on the filter element cover 200 is rotated and snapped into the snap-in groove 104 opened on the inner side of the side ear plate 103 of the driver housing 100, so that the splicing and locking operation between the driver housing 100 and the filter element cover 200 is simple and convenient.

[0030] Furthermore, a connecting ring 206 is fixedly provided at a position corresponding to the end surface of the filter cover 200 and the water inlet pipe 201, and a reinforcing sheet 207 is fixedly connected between the connecting ring 206 and the outer wall of the filter cover 200. The connecting ring 206 and the reinforcing sheet 207 are arranged to enhance the firmness between the water inlet pipe 201 and the filter cover 200 to avoid the connection between the two from being broken due to external collision; the water inlet pipe body 300 includes a bellows 301, a bellows 302, and a bellows 303. The two ends of 01 are respectively fixed with a connecting pipe head 1 302 and a connecting pipe head 2 303 connected thereto, the inner side of the connecting pipe head 1 302 is movably plugged with the outer wall of the water inlet pipe 201, and the bellows 301 cooperates with the connecting pipe head 1 302 and the connecting pipe head 2 303, which can not only adjust the length, but also facilitate storage and can be used at multiple points underwater. The end of the connecting pipe head 1 302 is provided with a rotatable internal threaded end cap 304, which is close to the outer wall of the water inlet pipe 201. The end of the filter cover 200 is fixedly sleeved with an external threaded sleeve 203, and the inner side of the internal threaded end cap 304 is threadedly connected to the outer wall of the external threaded sleeve 203. The internal threaded end cap 304 is installed on the connecting pipe head 302, so that after the connecting pipe head 302 is inserted into the outer wall of the water inlet pipe 201, it can be threadedly connected with the external threaded sleeve 203 on it through the internal threaded end cap 304, so as to realize the locking between the connecting pipe head 302 and the water inlet pipe 201 and enhance the splicing between the two. In order to ensure firmness and facilitate subsequent disassembly, an annular groove 204 is provided on the outer wall of the water inlet pipe 201, and an O-ring 205 is sleeved in the annular groove 204. The O-ring 205 is installed by providing the annular groove 204 on the outer wall of the water inlet pipe 201, and the outer wall of the O-ring 205 protrudes from the outer wall of the water inlet pipe 201. In this way, when the connecting pipe head 302 is sleeved on the outer wall of the water inlet pipe 201, the O-ring 205 can be squeezed to achieve a seal between the two, thereby enhancing the sealing of the connection.

[0031] In a preferred embodiment, the driver housing 100 is composed of a housing base 101 and a housing connecting seat 102. The driver housing 100 composed of the housing base 101 and the housing connecting seat 102 can facilitate the separate disassembly and assembly of the drive motor and the worm wheel blades in the driver, which is convenient for maintenance, and can realize the split structure of the driver housing 100, which is convenient for assembly and can realize the separate replacement of the structure, thereby reducing costs. An annular groove 109 is opened on the side of the housing connecting seat 102 away from the housing base 101, and the side ear plate 103 is fixedly arranged on the side wall of the housing connecting seat 102. An arc through hole 107 connected to the two sides of the housing connecting seat 102 is opened on the inner side of the annular groove 109. The opening of the arc through hole 107 can facilitate the ejection of the sealing ring 400 located in the annular groove 109 after the housing connecting seat 102 is disassembled, so as to facilitate the disassembly of the sealing ring 400. One side of the housing base 101 is aligned with the arc through hole 107. An arc stopper 108 is fixedly provided at the corresponding position for sealing the arc through hole 107. The setting of the arc stopper 108 enables the arc through hole 107 on the shell connecting seat 102 to be blocked and closed after the shell base 101 and the shell connecting seat 102 are spliced ​​together, so that the arc through hole 107 can be conveniently removed after the shell connecting seat 102 is disassembled to remove the sealing ring 400, while avoiding the problem that the arc through hole 107 is always exposed and affects the sealing performance of the driver shell 100. The side wall of the shell base 101 is provided with a side ear groove 105, and the inner side wall of the shell connecting seat 102 is fixedly connected with a positioning ear block 106, and the positioning ear block 106 is movably plugged into the side ear groove 105. After the shell connecting seat 102 and the shell base 101 are connected, the positioning ear block 106 can be rotated and inserted into the side ear groove 105 through relative rotation between the two, so as to achieve the splicing positioning between the two, thereby facilitating the subsequent locking and fixing by bolts.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An underwater vacuum cleaner filter cover anti-sand jam structure, comprising a filtration system capable of achieving solid-liquid separation and a driving system providing negative pressure suction to the filtration system, characterized in that: A sand-blocking prevention structure is arranged between the filtering system and the driving system, which can prevent sand and gravel filtered out of the filtering system from entering the gap between the filtering system and the driving system.

2. The anti-sand jamming structure of the filter cover of an underwater vacuum cleaner according to claim 1, characterized in that: The filtration system comprises a filter element cover (200) and a detachable filter medium arranged inside the filter element cover (200), and the drive system comprises a drive housing (100) and a drive component arranged inside the drive housing (100) for providing negative pressure suction inside the filter element cover (200).

3. The anti-sand jamming structure of the filter cover of an underwater vacuum cleaner according to claim 2, characterized in that: The anti-sand jamming structure comprises an annular groove (109) formed on a side of a driver housing (100) facing the filter element cover (200) and a sealing ring (400) movably embedded in the annular groove (109); the sealing ring (400) is flush with the side of the driver housing (100) facing the filter element cover (200).

4. The anti-sand jamming structure of the filter cover of an underwater vacuum cleaner according to claim 3, characterized in that: A side ear plate (103) is fixedly provided on the outer wall of the driver housing (100), a clamping block (208) is fixedly provided on the outer wall of the filter element cover (200), and a clamping groove (104) matching the clamping block (208) is provided on the inner side of the side ear plate (103).

5. The anti-sand jamming structure of the filter cover of an underwater vacuum cleaner according to claim 4, characterized in that: The driver housing (100) is composed of a housing base (101) and a housing connecting seat (102); the annular groove (109) is provided on a side of the housing connecting seat (102) away from the housing base (101); the side ear plate (103) is fixedly arranged on the side wall of the housing connecting seat (102); an arc through hole (107) connected to two sides of the housing connecting seat (102) is provided on the inner side of the annular groove (109); an arc blocking strip (108) is fixedly arranged on one side of the housing base (101) at a position corresponding to the arc through hole (107) for sealing the arc through hole (107).

6. The anti-sand jamming structure of the filter cover of an underwater vacuum cleaner according to claim 5, characterized in that: The side wall of the shell base (101) is provided with a side ear groove (105), and the inner side wall of the shell connecting seat (102) is fixedly connected with a positioning ear block (106), and the positioning ear block (106) is movably plugged into the side ear groove (105).

7. The anti-sand jamming structure of the filter cover of an underwater vacuum cleaner according to claim 6, characterized in that: The filter element cover (200) is provided with a water inlet pipe (201) and a water outlet hole (202) for the inlet and outlet of liquid, respectively. The end of the water inlet pipe (201) is sleeved with a water inlet pipe body (300) for the transportation of liquid.

8. The anti-sand jamming structure of the filter cover of an underwater vacuum cleaner according to claim 7, characterized in that: The water inlet pipe body (300) comprises a bellows (301), and two ends of the bellows (301) are respectively fixedly provided with a connecting pipe head 1 (302) and a connecting pipe head 2 (303) connected thereto, and the inner side of the connecting pipe head 1 (302) is movably plugged into the outer wall of the water inlet pipe (201).

9. The anti-sand jamming structure of the filter cover of an underwater vacuum cleaner according to claim 8, characterized in that: The end of the connecting pipe head (302) is provided with a rotatable internally threaded end cap (304), and the end of the outer wall of the water inlet pipe (201) close to the filter element cover (200) is fixedly sleeved with an externally threaded sleeve (203), and the inner side of the internally threaded end cap (304) is threadedly connected to the outer wall of the externally threaded sleeve (203).

10. The anti-sand jamming structure of the filter cover of an underwater vacuum cleaner according to claim 7, characterized in that: The outer wall of the water inlet pipe (201) is provided with an annular groove (204), an O-ring (205) is sleeved in the annular groove (204), a connecting ring (206) is fixedly provided at a position corresponding to the end surface of the filter element cover (200) and the water inlet pipe (201), and a reinforcing sheet (207) is fixedly connected between the connecting ring (206) and the outer wall of the filter element cover (200).

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