Negative pressure water absorption filter and sewage tank thereof

Abstract

The utility model belongs to the technical field of sewage filtration, and particularly relates to a negative pressure water suction filter and a sewage tank thereof. The filter cover comprises a baffle and a curved-surface filter screen, the baffle is arranged on one side of the extraction opening, and the curved-surface filter screen is arranged on one side deviating from the extraction opening; the sewage tank comprises a tank cover and a tank body, a slot is formed in the tank cover, and the filter is mounted at the slot; the tank cover is provided with a tank cover water inlet and a tank cover extraction opening, and row-connected bent pipes are arranged in the open groove and connected with the tank cover water inlet, the tank cover extraction opening, the water inlet and the extraction opening. Solid impurities and hair existing in sewage can be effectively filtered out, the sewage is prevented from entering the sewage tank, the discharged water guide direction and the air exhaust guide direction are arranged oppositely, and the sewage is prevented from being sucked in; in addition, the sewage tank structure provides a combined structure of the tank cover and the tank body, and a mounting structure matched with the filter and a damping and sealing function are added in the tank cover, so that the sewage tank structure is higher in applicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage filter technical field especially, it is a kind of negative pressure water suction filter and sewage tank thereof. BACKGROUND

[0002] Household, commercial cleaning equipment, such as scrubber, its sewage contains a large amount of silt, fiber, food residue and hair, if not filtered collection processing, direct discharge after easy to cause pipeline blockage and secondary pollution.

[0003] The previous scrubber, filter screen is added in the container that collects sewage, or filter screen is added at the water inlet of container;Although the filter screen at the water inlet can provide filtering function, its filtering area is smaller, and impurities accumulation can easily cause the problem of poor drainage, and there is no impurity storage space, frequent cleaning is needed, and actual use is inconvenient;And the filter screen in the container, although there is larger filtering area and impurity storage space, but the cleaning of impurities is inconvenient, the filter screen is not easy to take out, and the entire container needs to be removed when cleaning, and there is also the problem of inconvenient actual use.

[0004] In addition, the existing scrubber mostly adopts negative pressure type water pumping mode, and the sewage discharge pipeline and the air pumping pipeline are integrated, the design position is close, and mutual interference is easily caused during work, so that the air pumping pipeline pumps out a small amount of water mist, which can cause equipment water damage over a long period of time. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems of low filtering efficiency, inconvenient use and cleaning of traditional scrubber filter screen components in the prior art, and the problems of easy water mist pumping and easy equipment damage during negative pressure water pumping, and provides a negative pressure water suction filter and sewage tank thereof.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A negative pressure water suction filter, comprising a filter body, the filter body comprising a water inlet, an air outlet and a filter cover arranged on the water inlet;

[0008] The filter cover comprises a baffle and a curved filter screen, the baffle is arranged on one side of the air outlet, and the curved filter screen is arranged on the side away from the air outlet.

[0009] As a further preferred scheme, the baffle comprises a vertical plate perpendicular to the plane where the water inlet is located and a bottom plate connected with the vertical plate, and the vertical plate, the filter screen and the bottom plate form a filter cavity.

[0010] As a further preferred scheme, the bottom plate is a slope, and the end of the slope is an arc connected with the filter screen.

[0011] As a further preferred solution, the air suction extension pipe is provided on the air suction port, and the pipe opening of the air suction extension pipe is a bevel, and the pipe opening direction is away from the filter cover.

[0012] As a further preferred solution, the water inlet extension pipe is provided on the water inlet port, and the water inlet extension pipe is located in the filter cover.

[0013] A sewage tank comprising a negative pressure water suction filter, the sewage tank further comprising a tank cover and a tank body, the tank cover covering the tank body, the filter cover and the air suction extension pipe being located in the tank body;

[0014] The tank cover is provided with a slot, and the filter is installed at the slot;

[0015] The tank cover is provided with a tank cover water inlet port and a tank cover air suction port;

[0016] The slot is provided with a row of elbow pipes, and the row of elbow pipes comprises a water inlet pipe and an air suction pipe;

[0017] One end of the water inlet pipe is connected to the tank cover water inlet port, and the other end of the water inlet pipe is connected to the water inlet port of the filter body, and the connection part between the water inlet pipe and the tank cover water inlet port is provided with a sealing element;

[0018] One end of the air suction pipe is connected to the tank cover air suction port, and the other end of the air suction pipe is connected to the air suction port of the filter body, and the connection part between the air suction pipe and the tank cover air suction port is provided with a sealing element.

[0019] As a further preferred solution, a connecting part is provided between the water inlet pipe and the air suction pipe, and the connecting part is provided with a mounting boss for being inserted into the tank cover water inlet port and the tank cover air suction port.

[0020] As a further preferred solution, the slot is provided with a fixing cover, the fixing cover is provided with a circular groove structure in the middle, and is provided with a mounting area connected to the tank cover around the circular groove structure, the circular groove structure is provided with a first inner step surface for mounting the filter around the edge, and is provided with a second inner step surface for being connected to the tank body, and the second inner step surface is threadedly connected to the tank body;

[0021] A pair of circular holes are provided on the circular groove structure for the water inlet pipe and the air suction pipe to pass through, and the water inlet pipe and the air suction pipe are limited and fixed in the respective corresponding circular holes.

[0022] As a further preferred solution, a damping sealing gasket is provided between the circular groove structure and the filter body, and a pair of openings are provided on the damping sealing gasket, and the openings correspond to the water inlet port and the air suction port respectively;

[0023] A sealing ring is provided on one side of each of the two openings, one of the sealing rings is located between the water inlet pipe and the corresponding circular hole, and the other sealing ring is located between the air suction pipe and the corresponding circular hole;

[0024] An inner groove is provided on the filter body for limiting the damping sealing gasket.

[0025] As a further preferred solution, the tank has a water level observation window.

[0026] Advantages

[0027] The filter in the utility model, adopt vertical filter screen surface, under the influence of gravity, even if the impurities accumulate also difficult to block the filter screen completely, retain the larger filter surface margin, and, have the larger impurity storage space, need not clean the impurities frequently.

[0028] In addition, the filter in the utility model is installed independently on the sewage container, convenient to disassemble and clean, without the need to disassemble and clean the sewage container frequently,

[0029] The water inlet and the air outlet in the filter are redesigned in the water inlet direction and the air outlet direction to avoid mutual interference during work and damage to the equipment by extracting water mist;

[0030] The utility model discloses a sewage tank cover and tank body are improved in adaptability structure, enhance the leakproofness, shock attenuation and installation portability, improve the experience. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the front view of filter;

[0032] Figure 2 It is the side view of filter;

[0033] Figure 3 It is the top view of filter;

[0034] Figure 4 It is the structure schematic view of tank cover;

[0035] Figure 5 It is the structure schematic view of row bend;

[0036] Figure 6 It is the structure schematic view of fixed cover;

[0037] Figure 7 It is the installation structure schematic view of filter and tank cover;

[0038] Figure 8 It is the structure schematic view of sewage tank;

[0039] In the drawing: 1, filter body, 2, water inlet, 3, air outlet, 4, filter cover, 5, filter screen, 6, air extraction extension pipe, 7, tank cover, 8, slot, 9, tank cover water inlet, 10, tank cover air outlet, 11, row bend, 11-1, water inlet pipe, 11-2, air pipe, 12, connecting part, 13, fixed cover, 14, shock attenuation gasket, 15, inner groove, 16, tank. DETAILED DESCRIPTION

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0041] Example 1

[0042] This utility model discloses a negative pressure water suction filter, which is mainly used in household or commercial cleaning equipment. Specifically, its application environment is negative pressure water suction cleaning equipment.

[0043] like Figures 1-3 As shown, the negative pressure water suction filter includes a filter body 1, which includes an inlet 2, an air extraction port 3, and a filter cover 4 installed on the inlet 2. The filter body 1 is sealed and installed on the sewage collection container. The air extraction port 3 extracts the gas inside the sewage collection container to form an internal negative pressure. The inlet 2 is connected to the sewage in the corresponding cleaning area of ​​the cleaning equipment through a pipe. Using the negative pressure formed, the sewage is sucked into the sewage collection container through the pipe and the inlet 2.

[0044] The filter cover 4 is located in the negative pressure environment corresponding to the filter, that is, inside the sewage collection container. The filter cover 4 and the filter body 1 can be formed as one piece or can be detached and installed.

[0045] The filter cover 4 includes a baffle and a curved filter screen 5. The baffle is located on one side of the air intake port 3, and the curved filter screen 5 is located on the side away from the air intake port 3. The design of the filter cover 4 and the filter screen 5 can effectively increase the impurity collection space, increase the filtration area, and avoid the problem of impurities easily accumulating and clogging the filter screen 5.

[0046] Specifically, the baffle includes a vertical plate perpendicular to the plane of the inlet 2 and a base plate connected to the vertical plate. The vertical plate, filter screen 5, and base plate form a filter cavity, which can save material costs, increase the storage space for impurities, and guide the water flow.

[0047] Alternatively, the bottom plate can be set to be parallel to the plane where the water inlet 2 is located, with a semi-circular end and a cylindrical filter chamber to maximize the storage space for internal impurities.

[0048] The filter screen 5 on the filter cover 4 is positioned away from the air extraction port 3, which can more quickly guide the dispersed sewage and water mist to the inner wall of the container to come into contact and merge into water flow, thus largely eliminating the possibility of inhaling water mist.

[0049] An air extraction extension pipe 6 is provided on the air extraction port 3. The length of the air extraction extension pipe 6 is determined according to the depth of the sewage collection container. The air extraction extension pipe 6 is located in the negative pressure environment corresponding to the filter, that is, inside the sewage collection container. The air extraction position and the discharge position of the filter screen 5 can be selectively controlled to maximize the straight-line distance.

[0050] The inlet of the air extraction extension pipe 6 is beveled, and the beveled inlet is set away from the filter cover 4, which further adjusts the air intake direction. Combined with the setting position of the filter screen 5, i.e. the drainage direction, and the length setting of the air extraction extension pipe 6, the possibility of water mist being sucked in is completely avoided.

[0051] Furthermore, the filter screen 5 is detachable, and internal impurities can be cleaned after removal. This function can be achieved simply by removing the filter component, without any other removal process or disassembly of the sewage collection container.

[0052] Furthermore, the filter screen 5 has a honeycomb structure with a maximum pore size of 3mm-8mm, preferably 5mm.

[0053] Furthermore, the inlet 2 and the air outlet 3 are located near the two ends of the same diameter on the filter body 1. Under the premise that the inlet 2 and the air outlet 3 are integrated into one unit, the inlet 2 and the air outlet 3 are separated as much as possible. It should be noted that when the inlet 2 is closer to the edge, the dispersed sewage can be guided and discharged to the inner wall of the container more quickly to contact and merge into water flow, reducing the possibility of water mist formation.

[0054] Example 2

[0055] Based on a negative pressure water absorption filter of Embodiment 1, such as Figure 8 As shown, this embodiment provides a sewage tank, which serves as the carrier of the negative pressure water suction filter and an essential component of the negative pressure water suction cleaning equipment. This embodiment improves the structure of the sewage tank to adapt it to the negative pressure water suction filter and the negative pressure water suction cleaning equipment, significantly enhancing its sealing performance, shock absorption, and ease of installation and portability.

[0056] like Figure 4 As shown, the sewage tank includes a cover 7 and a body 16. The top of the body 16 has an installation port. The cover 7 is sealed to the body 16 through the installation port. The cover 7 and the body 16 form a whole. The filter cover 4 and the exhaust extension pipe 6 are located inside the body 16. The body 16 is a negative pressure environment. The body 16 in Embodiment 2 is the sewage collection container in Embodiment 1.

[0057] The cover 7 has a slot 8. The filter in Embodiment 1 is installed at the slot 8, that is, the slot 8 matches the filter structure.

[0058] The box cover 7 side edge position is provided with a box cover water inlet 9 and a box cover air outlet 10, the box cover water inlet 9 is connected with an external sewage source, and the box cover air outlet 10 is connected with an external air extraction device, specifically, the box cover water inlet 9 is connected with a sewage place of a cleaning area corresponding to the cleaning device through a pipeline, and the box cover air outlet 10 is connected with an external air extraction pump through a pipeline;

[0059] Due to the existence of the box cover 7, as long as the box cover 7 is regularly disassembled, the filter is taken out, and the filter impurities are cleaned, the long-term use of the equipment can be ensured.

[0060] As shown in Figure 5 , a row of elbow pipes 11 are arranged in the slot, the row of elbow pipes 11 include a water inlet pipe 11-1 and an air outlet pipe 11-2;

[0061] One end of the water inlet pipe 11-1 is connected with the box cover water inlet 9, and the other end is connected with the water inlet 2 of the filter body 1, and the connection part of the water inlet pipe 11-1 and the box cover water inlet 9 is provided with a sealing element;

[0062] One end of the air outlet pipe 11-2 is connected with the box cover air outlet 10, and the other end is connected with the air outlet 3 of the filter body 1, and the connection part of the air outlet pipe 11-2 and the box cover air outlet 10 is provided with a sealing element;

[0063] Further, the box body is provided with a water level observation window or is made of transparent material, whether the box body needs to be disassembled is judged through the observation window, and the sewage is poured out.

[0064] The box cover 7 is convenient to disassemble, and the filter is convenient to disassemble and clean, when the box body with a sewage outlet is used, the sewage can be discharged only by opening the sewage outlet of the box body, without disassembling the box body.

[0065] Further, a connecting part 12 is arranged between the water inlet pipe 11-1 and the air outlet pipe 11-2, the connecting part 12 is provided with a mounting boss for being inserted into the box cover water inlet 9 and the box cover air outlet 10, so that the row of elbow pipes 11 and the box cover 7 are more integrated, and the installation and calibration are convenient;

[0066] The row of elbow pipes 11 as an independent component is also convenient to disassemble and clean.

[0067] Further, as shown in Figure 6 , the slot 8 is provided with a fixed cover 13, the middle of the fixed cover 13 is a circular groove structure, the periphery is a mounting area connected with the box cover 7, the edge of the circular groove structure is respectively provided with a first inner step surface A for mounting the filter, and a second inner step surface B for connecting with the box body, and the second inner step surface is screw-connected with the box body;

[0068] The filter body 1 of the filter is inserted into the first inner step surface A, to form a fixed mounting environment;

[0069] The box body is provided with threads at the box opening, and the second inner step surface B is also provided with matching threads, so that the box cover 7 can be stably installed on the box body and the sealing performance is improved.

[0070] In addition, a pair of circular holes are formed in the circular groove structure for the water inlet pipe 11-1 and the air outlet pipe 11-2 to pass through, the water inlet pipe 11-1 and the air outlet pipe 11-2 are fixed in the corresponding circular holes, and the mounting boss of the connecting part 12 is used to completely position the row of bent pipes 11 in the groove 8, so that the row of bent pipes 11 will not be loosened in a long-term vibration working environment.

[0071] Further, a damping sealing gasket 14 is arranged between the circular groove structure and the filter body 1, a pair of openings are formed in the damping sealing gasket 14, corresponding to the water inlet 2 and the air outlet 3, and corresponding to the two circular holes formed in the circular groove structure, and the filter body 1 is provided with an inner groove 15 for limiting the damping sealing gasket 14, so that the vibration transmission between the box cover 7 and the filter is greatly reduced, and the filter is prevented from loosening and falling off.

[0072] In addition, the same side of the two openings of the damping sealing gasket 14 is provided with a sealing ring, one of which is located between the water inlet pipe 11-1 and the corresponding circular hole, and the other is located between the air outlet pipe 11-2 and the corresponding circular hole, further increasing the air tightness and damping;

[0073] The two sealing rings of the damping sealing gasket 14, in cooperation with the sealing elements at the connection between the water inlet pipe 11-1 and the water inlet 9 of the box cover, and the sealing elements at the connection between the air outlet pipe 11-2 and the air outlet 10 of the box cover, provide double-protected air tightness and damping, completely meeting the negative pressure internal environment of the box body and ensuring the user experience.

[0074] The negative pressure water suction filter of the first embodiment and the sewage tank of the second embodiment can be applied to a scrubber, and the power source of the scrubber is not limited to electricity, and the use of the scrubber is not limited to household and commercial use.

[0075] The scrubber is correspondingly provided with an air pump (air suction pump) and a water supply device (including a water tank and a water pump).

[0076] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A negative pressure water suction filter comprising a filter body (1), characterized in that: The filter body (1) comprises a water inlet (2), an air outlet (3) and a filter cover (4) arranged on the water inlet (2); The filter cover (4) comprises a baffle and a curved filter screen (5), the baffle is arranged on one side of the air outlet (3), and the filter screen (5) is arranged on the side away from the air outlet (3).

2. The negative pressure water suction filter according to claim 1, characterized in that: The baffle comprises a vertical plate perpendicular to the plane where the water inlet (2) is located and a bottom plate connected with the vertical plate, and the vertical plate, the filter screen (5) and the bottom plate form a filtering cavity.

3. A negative pressure water suction filter according to claim 2, characterized in that: The bottom plate is a slope, and the end of the slope is an arc connected with the filter screen (5).

4. The negative pressure water suction filter according to claim 1, wherein: The air outlet (3) is provided with an air extension pipe (6), and the pipe opening of the air extension pipe (6) is a slope, and the direction of the pipe opening is away from the filter cover (4).

5. The negative pressure water suction filter according to claim 2, wherein: The water inlet (2) is provided with a water extension pipe located in the filter cover (4).

6. A sump tank characterized by: The negative pressure water suction filter comprises the filter body (1) and a sewage tank, and the sewage tank further comprises a tank cover (7) and a tank body (16), the tank cover (7) covers the tank body (16), and the filter cover (4) and the air extension pipe (6) are located in the tank body (16); The tank cover (7) is provided with a slot (8), and the filter is arranged at the slot (8); The tank cover (7) is provided with a tank cover water inlet (9) and a tank cover air outlet (10); The slot is provided with a joint bend pipe (11), and the joint bend pipe (11) comprises a water inlet pipe (11-1) and an air outlet pipe (11-2); One end of the water inlet pipe (11-1) is connected with the tank cover water inlet (9), the other end is connected with the water inlet (2) of the filter body (1), and the connection position of the water inlet pipe (11-1) and the tank cover water inlet (9) is provided with a sealing element; One end of the air outlet pipe (11-2) is connected with the tank cover air outlet (10), and the other end is connected with the air outlet (3) of the filter body (1), and the connection position of the air outlet pipe (11-2) and the tank cover air outlet (10) is provided with a sealing element.

7. A sewage tank as claimed in claim 6, wherein: A connecting part (12) is arranged between the water inlet pipe (11-1) and the air outlet pipe (11-2), and the connecting part (12) is provided with a mounting boss arranged in the tank cover water inlet (9) and the tank cover air outlet (10).

8. A sewage tank as claimed in claim 6, wherein: The slot (8) is provided with a fixing cover (13), the middle of the fixing cover (13) is a circular groove structure, the periphery is an installation area connected with the tank cover (7), the edge of the circular groove structure is respectively provided with a first inner step surface for mounting the filter and a second inner step surface for connecting with the tank body, and the second inner step surface is threadedly connected with the tank body; A pair of circular holes are formed in the circular groove structure and used for the water inlet pipe (11-1) and the air outlet pipe (11-2) to pass through, and the water inlet pipe (11-1) and the air outlet pipe (11-2) are limited and fixed in the corresponding circular holes.

9. A sewage tank as claimed in claim 8, wherein: A damping sealing gasket (14) is arranged between the circular groove structure and the filter body (1), the damping sealing gasket (14) is provided with a pair of openings corresponding to the water inlet (2) and the air outlet (3); One side of the two openings is provided with a sealing ring, one of the sealing rings is arranged between the water inlet pipe (11-1) and the corresponding circular hole, and the other sealing ring is arranged between the air outlet pipe (11-2) and the corresponding circular hole; The filter body (1) is provided with an inner groove (15) for limiting a damping sealing gasket (14).

10. A sewage tank according to any one of claims 6 to 9, wherein: The box is provided with a water level observation window.

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