CN116850785A - Cleaning sewage circulation filtering device and automatic driving floor washing machine using the device - Google Patents

Abstract

The invention relates to the technical field of clean water filtration, and discloses a sewage circulation filtration device for cleaning and an automatic driving floor washing machine using the device, including a sewage filter container, a clean water collector, a filter element device and a cleaning structure; the filter element device includes a filamentous hollow Fiber membrane ultrafiltration; one end of the ultrafiltration is integrated and connected with the filter outlet, and the other end is wire-shaped and immersed in the sewage filter container; the cleaning structure includes a water transfer plate located at the bottom of the sewage filter container and a rotor for driving the water transfer plate. The water plate drives the motor; the cleaning structure may also include a drive motor, and the drive motor is connected to the flange-type disc of the clean water collector through a connecting rod. The present invention can achieve the cleaning function of the filter element device by using the water rotating plate to drive the ultrafiltration rotation of the filamentary hollow fiber membrane or the rotation of the filter element device itself. Since frequent water changes are not required, the service life of the filter element device can be effectively extended. At the same time, the filter element device does not need to be disassembled and cleaned, which not only reduces labor input, but also saves water for cleaning the filter element.

Description

Cleaning sewage circulation filtering device and automatic driving floor washing machine using the device

Technical field

The present invention relates to the technical field of clean water filtration, and in particular to a sewage circulation filtration device for cleaning and an automatic driving floor washing machine using the device.

Background technique

With the increasing development of automation and intelligent technology, cleaning fields such as floor washing machines are gradually developing towards automation. However, the key issue that restricts the automation of floor washing machines is the implementation of sewage filtration circulation system. Due to the volume restriction of the water tank inside the floor washing machine, its clean water and sewage capacity is limited. Although it is equipped with a sewage filtration circulation system, as the filter element is clogged with sludge and other dirt, its filtration effect decreases or even fails. At this time, the filter element needs to be replaced. Disassembling, replacing and cleaning other structures is time-consuming and labor-intensive, and still results in a waste of clean water resources.

In the existing technology, the filtration devices commonly used in floor washing machines are mesh plates, filter bags, folded filter elements, etc. For example, Chinese Patent Application No. CN201821393425.3 discloses a sewage circulation system for floor washing machines, which is installed inside the water tank. cylinder, a primary filtration device, a secondary filtration device and a disinfection device. The lower end of the inner cylinder is integrated with the water tank. The upper end of the inner cylinder is connected to an air suction pipe. A suction fan is set inside the inner cylinder; the primary filtration device includes a grid plate. And the filter bag, the mesh plate is connected transversely between the water tank and the inner cylinder. The mesh plate separates the cavity between the water tank and the inner cylinder into an upper cavity and a lower cavity. The filter bag is connected below the mesh plate; secondary filtration The device is a foldable filter element, and the secondary filter device is located in the lower cavity and connected to the water tank; the disinfection device is located at the connection between the water tank and the clean water sprinkler pipe. The sewage in the water tank can be recycled through the sewage filtering device to improve the efficiency of the floor washing machine.

Although this device can realize the function of sewage filtration and circulation, it still involves the problem that the filter element needs to be disassembled and cleaned, which makes it impossible to realize the continuous use of the floor washing machine.

Therefore, in this technical field, how to ensure the continuous workability of the filter element is an urgent technical problem that needs to be solved.

Contents of the invention

The present invention mainly solves the above technical problems and provides a cleaning sewage circulation filtering device and an automatic driving floor washing machine using the device.

In order to achieve the above object, the present invention adopts the following technical solution. A sewage circulation filtering device for cleaning includes: a sewage filtering container, a clean water collector, a filter element device and a cleaning structure; the filter element device is arranged in the sewage filtering container, and its water outlet is connected to the cleaning structure. It is connected to the clean water collector at the top of the sewage filter container; the cleaning structure is used to clean the filter element device; among which:

The sewage filter container is a closed container with a sewage inlet;

The filter element device includes a filter outlet and a number of filamentous hollow fiber membrane ultrafiltrations; one end of the filamentary hollow fiber membrane ultrafiltration is integrated and connected with the filter outlet, and the other end is filament-shaped and immersed in the sewage filter container;

The clean water collector includes a hollow cavity, a clean water outlet, a water pump and a clean water pipe; one end of the clean water pipe is connected to the water pump, and the other end is connected to the clean water outlet; the clean water outlet is connected to the hollow cavity, and the water inlet at the bottom of the hollow cavity is connected to the filter element The filter outlet of the device is connected and fixed by a flange-type disc;

As one of the preferred embodiments, the cleaning structure includes a water turning plate provided at the bottom of the sewage filter container and a water turning plate driving motor for driving the water turning plate; the water turning plate driving motor is provided outside the sewage filtering container;

As the second preferred embodiment, the cleaning structure includes a drive motor, which is connected to the flange-type disc of the clean water collector through a connecting rod; a hollow rotary joint is provided between the clean water outlet of the clean water collector and the hollow cavity. ; The hollow rotary joint is fixed on the top cover of the sewage filter container. The hollow cavity and filter element device connected to the lower end can rotate in the sewage filter container under the action of the drive motor. The clean water outlet and the clean water pipe connected to it will not rotate;

Preferably, the hollow rotary joint includes a stator joint, a rotor joint, a rotor core and a compression rotor core; wherein, the stator joint is provided with a hollow internal thread boss bolt structure; and the rotor joint is provided with an inner hole boss. Bolt structure; the rotating core is provided with a hollow external thread structure, a cylindrical boss structure and an extension port structure in sequence; the compression rotating core is a hollow external thread structure; wherein the rotating core is inserted into the rotor joint and has a hollow external thread structure It is screwed with the hollow internal thread of the stator joint, and the cylindrical boss structure of the rotor core rotates with the inner hole boss of the rotor joint; the compression rotor core is screwed with the bolt part of the rotor joint, and the extension port structure of the rotor core is rotated with the compression The hollow holes of the rotating core are connected;

Preferably, the sewage filter container is also provided with a sewage discharge pipeline and a sludge discharge pipeline;

Preferably, the sewage inlet of the sewage filter container is a plurality of openings provided around the sewage filter container;

The automatic driving floor washing machine using the sewage circulation filtering device places the sewage circulation filtering device in the sewage tank of the floor washing machine. The sewage flows in from the sewage inlet, and the clean water outlet is connected to the clean water tank or clean water outlet of the floor washer. .

beneficial effects

The invention provides a sewage circulation filtering device for cleaning and an automatic driving floor washing machine using the device. It has the following beneficial effects:

, this cleaning sewage circulation filter device uses the forward and reverse rotation of the cleaning structure water plate as one of the preferred embodiments, and drives the filamentous hollow fiber membrane ultrafiltration to swing in the water through the vortex of the water flow, and then under the action of the water flow, The clogged sludge is washed away, which increases the effective application time of the filter element device; when the sludge in the sewage filter container is too accumulated, the sludge is removed through the sludge discharge pipeline, and the filter element device can continue to work effectively;

This cleaning sewage circulation filtering device drives the forward and reverse rotation of the motor through the cleaning structure as the second preferred embodiment, drives the filter element device to perform forward and reverse rotation in the water, and then removes the clogged sludge under the action of the water flow. Cleaning it away increases the effective application time of the filter element device; when the sludge in the sewage filter container is too accumulated, the sludge is removed through the sludge discharge pipeline, and the filter device can still continue to work effectively;

(3) When this cleaning sewage circulation filtering device is used in an automatic driving floor washing machine, it can filter the water in the original sewage tank into clean water for use. In the case of limited water tank volume, the amount of clean water used is increased, thereby increasing the usage of clean water. The water usage time of the original floor washing machine is greatly improved, and there is no need to change the water frequently due to the accumulation of sewage.

Description of the drawings

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, other implementation drawings can be obtained based on the extension of the provided drawings without exerting creative efforts.

The structures, proportions, sizes, etc. shown in this specification are only used to coordinate with the contents disclosed in the specification for the understanding and reading of people familiar with this technology. They are not used to limit the conditions under which the invention can be implemented, and therefore do not have any technical Any structural modification, change in proportion or size adjustment shall still fall within the scope of the technical content disclosed in the present invention without affecting the effectiveness and purpose achieved by the present invention. within the scope that can be covered.

Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

Figure 2 is a schematic three-dimensional structural diagram of the filter element device of the present invention;

Figure 3 is a schematic cross-sectional view of the filter element device of the present invention;

Figure 4 is a schematic structural diagram of the clean water collector of the present invention;

Figure 5 is a schematic structural diagram of Embodiment 2 of the present invention;

Figure 6 is a schematic diagram of the cleaning structure in Embodiment 2 of the present invention;

Figure 7 is a schematic disassembly view of the hollow rotary joint structure in Embodiment 2 of the present invention.

illustration:

1-sewage filter container; 2-clean water collector; 3-filter device; 4-cleaning structure; 11-sewage inlet; 31-filtration outlet; 32-filamentary hollow fiber membrane ultrafiltration; 20-hollow cavity; 21-clean water outlet; 22-water pump; 23-clean water pipe; 24-flange type disc; 5-water transfer plate; 6-water transfer plate drive motor; 61-drive motor; 62-connecting rod; 63-hollow Rotary joint; 631-stator joint; 632-rotor joint; 633-rotating core; 634-pressure rotating core; 6331-hollow external thread structure; 6332-cylindrical boss structure; 6333-extension port structure; 7-sewage discharge pipe Road; 8-Sludge discharge pipeline.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Example 1

Referring to Figure 1, the sewage circulation filtering device for cleaning includes: a sewage filter container 1, a clean water collector 2, a filter element device 3 and a cleaning structure 4; the filter element device 3 is arranged in the sewage filter container 1, and its outlet is placed in the sewage filtering container 1. The clean water collector 2 at the top of the container 1 is connected; the cleaning structure 4 is used to clean the filter element device 3;

The sewage filter container 1 is a closed container with a sewage inlet 11 with a circular opening all around, and is also provided with a sewage discharge pipeline 7 and a sludge discharge pipeline 8;

Referring to Figures 2 and 3, the filter element device 3 includes a filter outlet 31 and a plurality of filamentary hollow fiber membrane ultrafiltration 32; one end of the filamentary hollow fiber membrane ultrafiltration 32 is integrated and connected with the filter outlet 31, and the other end is filamentally immersed. In the sewage filter container 1;

Referring to Figures 1 and 4, the clean water collector 2 includes a hollow cavity 20, a clean water outlet 21, a water pump 22 and a clean water pipe 23; one end of the clean water pipe 23 is connected to the water pump 22, and the other end is connected to the clean water outlet 21; the clean water outlet 21 is connected with the hollow cavity 20, and the water inlet at the bottom of the hollow cavity 20 is connected with the filter outlet 31 of the filter element device 3, and is fixed by the flange type disc 24;

Referring to FIG. 1 , the cleaning structure 4 includes a water turning plate 5 located at the bottom of the sewage filter container 1 and a water turning plate driving motor 6 for driving the water turning plate 5 ; the water turning plate driving motor 6 is provided outside the sewage filtering container 1 .

Working principle of this embodiment:

The cleaning sewage circulation filtering device is placed in the sewage tank. The sewage flows into the sewage filter container 1 from the sewage inlet 11. Under the action of the water pump 22, the sewage is filtered by the filamentary hollow fiber membrane ultrafiltration 32 to produce clean water. It flows through the filter outlet 31, the hollow cavity 20, the clean water outlet 21 and the clean water pipe 23 in sequence. The clean water is used for cleaning and then recycled to the sewage tank for the next round of filtration cycle; when the filamentous hollow fiber of the filter element device 3 When there is too much dirt on the membrane ultrafiltration 32, it will affect the clean water removal efficiency. At this time, the water transfer plate drive motor 6 is started, and the water transfer plate drive motor 6 rotates forward and reverse alternately. Through the eddy current of the water in the sewage filter container 1, the water transfer plate drive motor 6 is turned on. The dirt on the filamentary hollow fiber membrane ultrafiltration 32 is flushed, and the filter element device 3 can be used continuously again; when there is too much dirt deposited in the sewage filter container 1, the sludge is discharged from the sludge discharge pipeline 8 through the water pump.

The use of this cleaning sewage circulation filtering device in automatic driving floor washing machines:

The original 850BT floor scrubber of a certain brand had a sewage tank capacity of 120L and a clean water tank of 110L. The original filter element was manually disassembled and cleaned. The tile floor was being cleaned in a railway station. Before the work started, the clean water tank was installed. Full of water, clean the floor, and pump the cleaned sewage back into the sewage tank. The sewage is filtered by the filter element and then flows back to the clean water tank. After filtering 100L of sewage, the filter element is filled with dirt, and the filter element fails. It is necessary to Disassemble and hand wash, usually for 15 minutes, with an additional 50L of water;

Place the sewage circulation filtering device for cleaning in the sewage tank of this type of floor washing machine, connect the clean water pipe 23 to the original clean water outlet pipe of the floor washing machine, fill the clean water tank and the sewage tank with water at the same time, and then Under normal circumstances, the ground cleaning work is carried out, and the water in the clean water tank is used for floor cleaning. After cleaning, the sewage is pumped back into the sewage tank and then flows into the sewage circulation filtering device provided in this embodiment. After filtering, it flows back to the clean water outlet pipe and continues to be used on the ground. Cleaning; when the waste water in the sewage tank is recycled, set the water transfer plate drive motor 6 to start and work simultaneously with the water outlet motor. The water transfer plate drive motor 6 sets the forward and reverse mode time according to the degree of dirt on the ground, and the forward rotation is 20 seconds. , reverse for 20 seconds, with an interval of 10 seconds. After the water level in the sewage tank is lower than the water outlet scale, the water turning plate drive motor 6 delays for 3 minutes to clean a small amount of residual dirt in the filter element; and during the sewage circulation process, every At an interval of 10 minutes, the sewage in the sewage filter container 1 is discharged back to the sewage tank through the water pump to reduce the sludge concentration in the sewage generator and achieve better filtration. The actual water used for sewage circulation filtration can reach 730L; in the sewage tank When 20% of the sewage remains, the remaining sewage and sludge can be discharged from the sewage discharge pipe 7 and the sludge discharge pipe 8 respectively.

Through actual comparison, the effective water consumption of a single floor washing machine using the sewage circulation filtering device of the present invention can be increased to more than 7 times the original, and more than 90% of the water used for cleaning the filter element device can be saved. Since there is no need for manual disassembly and cleaning, and its long-term continuous operation, it is a necessary prerequisite for realizing the automation of the floor washing machine.

Example 2

Referring to Figure 5 and Figure 1, the sewage circulation filtering device for cleaning includes: a sewage filter container 1, a clean water collector 2, a filter element device 3 and a cleaning structure 4; the filter element device 3 is arranged in the sewage filter container 1, and its outlet is connected to the sewage filter container 1. The clean water collector 2 placed at the top of the sewage filter container 1 is connected; the cleaning structure 4 is used to clean the filter element device 3; among them:

The sewage filter container 1 is a closed container with a sewage inlet 11 with a circular opening all around, and is also provided with a sewage discharge pipeline 7 and a sludge discharge pipeline 8;

The filter element device 3 includes a filter outlet 31 and a plurality of filamentous hollow fiber membrane ultrafiltration 32; one end of the filamentary hollow fiber membrane ultrafiltration 32 is integrated and connected with the filter outlet 31, and the other end is immersed in the sewage filter container 1 in a filamentous shape;

The clean water collector 2 includes a hollow cavity 20, a clean water outlet 21, a water pump 22 and a clean water pipe 23; one end of the clean water pipe 23 is connected to the water pump 22, and the other end is connected to the clean water outlet 21; the clean water outlet 21 is connected to the hollow cavity 20 , the water inlet at the bottom of the hollow cavity 20 is connected with the filter outlet 31 of the filter element device 3, and is fixed by the flange type disc 24;

Referring to Figure 6, the cleaning structure 4 includes a drive motor 61, which is connected to the flange-type disc 24 of the clean water collector 2 through a connecting rod 62; there is a clean water outlet 21 between the clean water collector 2 and the hollow cavity 20. Hollow rotary joint 63; hollow rotary joint 63 is fixed on the top cover of sewage filter container 1, and the hollow cavity 20 and filter element device 3 connected to its lower end can rotate in sewage filter container 1 under the action of drive motor 61, and the clean water outlet 21 and the clean water pipe 23 connected to it will not rotate;

Referring to Figure 7, the hollow rotary joint 63 includes a stator joint 631, a rotor joint 632, a rotor core 633 and a compression rotor core 634; wherein, the stator joint 631 is provided with a hollow internal thread boss bolt structure; the rotor joint 632 is provided with a hollow internal thread boss bolt structure. A bolt structure with an inner hole boss; the rotating core 633 is provided with a hollow external thread structure 6331, a cylindrical boss structure 6332 and an extension port structure 6333 in sequence; the compression rotating core 634 is a hollow external thread structure; wherein, The rotor core 633 is inserted into the rotor joint 632 and its hollow external thread structure 6331 is screwed with the hollow internal thread of the stator joint 631. The cylindrical boss structure 6332 of the rotor core 633 rotates with the inner hole boss of the rotor joint 632; press the rotor core 634 is screwed to the bolt part of the rotor joint 632, and the extension opening structure 6333 of the rotor core 633 is connected with the hollow hole of the compression rotor core 634.

Working principle of this embodiment:

The cleaning sewage circulation filtering device is placed in the sewage tank. The sewage flows into the sewage filter container 1 from the sewage inlet 11. Under the action of the water pump 22, the sewage is filtered by the filamentary hollow fiber membrane ultrafiltration 32 to produce clean water. It flows through the filter outlet 31, the hollow cavity 20, the clean water outlet 21 and the clean water pipe 23 in sequence. The clean water is used for cleaning and then recycled to the sewage tank for the next round of filtration cycle; when the filamentous hollow fiber of the filter element device 3 When there is too much dirt on the membrane ultrafiltration membrane 32, it will affect the clean water removal efficiency. At this time, the drive motor 61 starts, and the drive motor 61 rotates forward and reverse alternately. By rotating the filter element device 3 in the water, the filamentous hollow fiber membrane ultrafiltration 32 is The dirt on the sewage filter container 1 is flushed, and the filter element device 3 can be used continuously again; when there is too much dirt deposited in the sewage filter container 1, the sludge is discharged from the sludge discharge pipe 8 through the water pump.

The use of the cleaning sewage circulation filtering device provided in this embodiment in an automatic driving floor washing machine:

The same as in Embodiment 1. The cleaning sewage circulation filtering device is placed in the sewage tank of this type of floor washing machine. The connection method and the starting method of the drive motor 61 are the same as in Embodiment 1.

Through actual comparison, the effective water consumption of a single unit of the floor washing machine provided with the sewage circulation filtering device according to this embodiment can be increased to more than 6 times the original, and more than 90% of the water used for cleaning the filter element device can be saved.

In summary, as described in the above two embodiments, whether the water rotating disk is used to drive the filamentary hollow fiber membrane ultrafiltration 32 to rotate, or the filter element device itself rotates, the cleaning effect of the filter element device can be achieved, because frequent water changes are not required, and both can be effectively Extend its usage time. At the same time, the filter element device does not need to be disassembled and cleaned, which not only reduces labor input, but also saves water for cleaning the filter element.

It should be noted that the cleaning sewage circulation filtration device provided by the present invention can not only be used in floor washing machines, but can also be used in scenarios such as car wash rooms that require sewage filtration and circulation. At the same time, this cleaning sewage circulation filtering device can be used as a primary filtration structure, and can be used with other secondary filtration structures, acid-base mediators, ultraviolet sterilization lamps, etc. to achieve higher-level sewage filtration. The filtered clean water can be used for bathing, Water for washing vegetables, washing up on trains or planes, etc.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have other aspects. Various changes and modifications are possible, which fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. Clean sewage cycle filter equipment that uses includes: the sewage filtering device is characterized by also comprising a sewage filtering container (1), a clear water collector (2) and a filter element device (3), and also comprising a cleaning structure (4); the filter element device (3) is arranged in the sewage filtering container (1), and the water outlet of the filter element device is communicated with the clear water collector (2) arranged at the top end of the sewage filtering container (1); the cleaning structure (4) is used for cleaning the filter element device (3); wherein:

the sewage filtering container (1) is a closed container provided with a sewage inlet (11);

the filter element device (3) comprises a filter water outlet (31) and a plurality of filiform hollow fiber membrane ultrafiltration (32); one end of the filiform hollow fiber membrane ultrafiltration (32) is integrally communicated with the filtration water outlet (31), and the other end is immersed in the sewage filtration container (1) in a filiform manner;

the clean water collector (2) comprises a hollow cavity (20), a clean water outlet (21), a water pump (22) and a clean water pipeline (23); one end of a clean water pipeline (23) is communicated with the water pump (22), and the other end is communicated with the clean water outlet (21); the clean water outlet (21) is communicated with the hollow cavity (20), and the water inlet at the bottom end of the hollow cavity (20) is communicated with the filtering water outlet (31) of the filter element device (3) and is fixed by the flange-type disc (24).

2. The sewage circulation filter device for cleaning according to claim 1, wherein: the cleaning structure (4) comprises a water transfer disc (5) arranged at the bottom of the sewage filtering container (1) and a water transfer disc driving motor (6) used for driving the water transfer disc (5); the water-turning disc driving motor (6) is arranged outside the sewage filtering container (1).

3. The sewage circulation filter device for cleaning according to claim 1, wherein: the cleaning structure (4) comprises a driving motor (61), and the driving motor (61) is connected with a flange-type disc (24) of the clean water collector (2) through a connecting rod (62);

a hollow rotary joint (63) is arranged between the clear water outlet (21) of the clear water collector (2) and the hollow cavity (20); the hollow rotary joint (63) is fixedly connected to the top cover of the sewage filtering container (1), the hollow cavity (20) and the filter element device (3) which are connected with the lower end of the hollow rotary joint can rotate in the sewage filtering container (1) under the action of the driving motor (61), and the clear water outlet (21) and the clear water pipeline (23) connected with the clear water outlet can not rotate.

4. A cleaning wastewater recirculation filter according to claim 3, wherein: the hollow rotary joint (63) comprises a stator joint (631), a rotor joint (632), a rotary core (633) and a compression rotary core (634); wherein, the stator joint (631) is provided with a hollow internal thread boss bolt structure; the rotor joint (632) is provided with a bolt structure with an inner hole boss; the rotary core (633) is sequentially provided with a hollow external thread structure (6331), a cylindrical boss structure (6332) and an extension port structure (6333); the pressing rotary core (634) is of a hollow external thread structure; the rotary core (633) is inserted into the rotor joint (632) and a hollow external thread structure (6331) of the rotary core is screwed with a hollow internal thread of the stator joint (631), and a cylindrical boss structure (6332) of the rotary core (633) is in running fit with an inner hole boss of the rotor joint (632); the compression rotary core (634) is screwed with the bolt part of the rotor joint (632), and the extension opening structure (6333) of the rotary core (633) is communicated with the hollow hole of the compression rotary core (634).

5. A cleaning wastewater recirculation filter according to claim 2 or 3, characterized in that: the sewage filtering container (1) is also provided with a sewage discharge pipeline (7) and a sludge discharge pipeline (8).

6. The sewage circulation filter device for cleaning according to claim 1, wherein: the sewage inlet (11) of the sewage filtering container (1) is provided with a plurality of openings on the whole body of the sewage filtering container (1).

7. An automatic floor washer employing the sewage circulation filter device for cleaning as set forth in claim 1, characterized in that: the sewage circulating and filtering device for cleaning is arranged in a sewage tank of the floor washing machine, sewage flows in from a sewage water inlet, and a clear water outlet is communicated with a clear water tank or a clear water outlet of the floor washing machine.