Device for filtering micro-plastic

Abstract

The utility model discloses a device for filtering microplastics, which comprises an inner shell, the inner shell is provided with an accommodating cavity, an upwards inclined mounting frame is arranged in the accommodating cavity, the inner side of the mounting frame is provided with a filter screen, the inclination angle of the filter screen is the same as that of the mounting frame, and the filter screen is cylindrical and is provided with a hollow filter cavity. A rotary filtering part is designed in the device, a liquid mixture needing to be filtered enters from the bottom of a filtering net, a driving piece drives a spiral conveying shaft to rotate to enable micro-plastic mixed liquid to move upwards, and liquid in the mixture is discharged through meshes of the filtering net in the rising process and is discharged from the filtering device. When the micro plastic mixture is lifted to the upper part of the filter screen, the micro plastic mixture is completely separated from liquid, is extruded to form a solid under the matching of the spiral conveying shaft and the cover plate, and finally falls into the collecting container, so that the phenomenon that the micro plastic blocks a pipeline to influence the use is avoided, and a user can easily clean the collected micro plastic mixture by cleaning the collector. The operation is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of washing machine waste water filtration, and particularly relates to a device for microplastic filtration. Background Art

[0002] A washing machine is a cleaning appliance that uses electric energy to generate mechanical action to wash clothes. The waste water generated after the washing machine washes clothes generally directly enters the drainage system and then enters ecological systems such as the ocean and terrestrial wetlands.

[0003] Currently, mainstream washing machines on the market are equipped with a filter net or a filter bag in the drainage pipe to filter the waste water. Due to the fact that clothing materials and cleaning liquids will form many tiny plastic particles during the washing process, the filter net or filter bag attached to the washing machine cannot effectively filter out these tiny particles, resulting in microplastic particles being discharged into nature along with the washing machine sewage, which will cause water body, soil and other pollutions.

[0004] In view of this, a device for microplastic filtration is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a device for microplastic filtration in order to solve the above-mentioned problems.

[0006] The technical solution adopted by the utility model is as follows: A device for microplastic filtration includes an inner housing, the inner housing has a receiving cavity, an upwardly inclined mounting frame is arranged in the receiving cavity, a filter net with the same inclination angle as the mounting frame is installed inside the mounting frame, the filter net is cylindrical and has a hollow filtering cavity, a spiral conveyor shaft is accommodated inside the filtering cavity, a driving member connected to the spiral conveyor shaft and capable of driving it to rotate is arranged at the tail end of the mounting frame, a waste discharge pipe is installed at the top outlet of the filter net, and a collection container for collecting waste is arranged below the waste discharge pipe.

[0007] In a preferred embodiment, the spiral conveyor shaft has the same length as the filter net, and the outer end surface of the spiral part of the spiral conveyor shaft is in contact with the inner end surface of the filter net.

[0008] In a preferred embodiment, one end of the inner housing is provided with a sewage inlet pipe connected to the sewage discharge pipe of the external washing machine, and the other end of the sewage inlet pipe is communicated with the bottom of the filter net.

[0009] In a preferred embodiment, the waste discharge pipe is located at the outer end of the inner housing, a cover plate is provided at the outlet of the waste discharge pipe, and a hinge hinged to the cover plate is provided at the top end of the waste discharge pipe.

[0010] In a preferred embodiment, the driving member is a motor, the output end of the motor is connected to the tail end of the shaft portion of the screw conveyor shaft, a bearing is further provided on the top wall of the mounting frame, and the shaft portion of the screw conveyor shaft is connected to the inner shaft ring of the bearing.

[0011] In a preferred embodiment, an outer housing is provided to cover the outer end of the inner housing, a drainage opening is provided at the lower end of the outer housing, a drainage cavity communicating with the drainage opening is formed on the inner housing below the filter screen, and the drainage opening is connected to an external drainage pipe.

[0012] In a preferred embodiment, a supporting platform for supporting the collection container is provided inside the outer housing, and both the supporting platform and the collection container have drainage mesh holes.

[0013] In a preferred embodiment, a handle is provided on the end face of the collection container, and the handle is fixed to the side wall of the outer housing by a clamping or buckling method.

[0014] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows: A rotating filtering part is designed inside the device. Through the cooperation of the filter screen and the screw conveyor shaft, the microplastic mixture can be effectively separated from the liquid and automatically collected in the collection container of the filtering device. Customers do not need to clean the filter screen anymore, which provides convenience for customers and increases the service life of the microplastic filtering device. It has advantages that current products do not have and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic cross-sectional plan structure diagram of the whole of the present utility model;

[0016] Figure 2 It is a schematic three-dimensional structure diagram of the combination of the inner housing and the filtering part in the present utility model;

[0017] Figure 3 It is a schematic half-sectional three-dimensional structure diagram of the combination of the inner housing and the filtering part in the present utility model;

[0018] Figure 4 It is a schematic three-dimensional structure diagram of the whole of the present utility model.

[0019] Reference numerals in the figures: 1 - outer housing, 101 - supporting platform, 102 - drainage opening, 2 - driving member, 3 - filter screen, 4 - screw conveyor shaft, 5 - mounting frame, 6 - waste discharge pipe, 7 - cover plate, 8 - hinge, 9 - inner housing, 10 - sewage inlet pipe, 11 - collection container, 111 - handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the purpose, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] Referring to Figures 1-4 , a device for microplastic filtration, comprising an inner housing 9, the inner housing 9 having a receiving cavity, an upwardly inclined mounting frame 5 provided in the receiving cavity, a filter screen 3 mounted on the inner side of the mounting frame 5 having the same inclination angle as it, the filter screen 3 being cylindrical and having a hollow filtration cavity, a spiral conveyor shaft 4 accommodated inside the filtration cavity, a driving member 2 provided at the end of the mounting frame 5 and connected to the spiral conveyor shaft 4 and capable of driving it to rotate, a waste discharge pipe 6 mounted at the top outlet of the filter screen 3, and a collection container 11 for collecting waste provided below the waste discharge pipe 6. The liquid mixture to be filtered enters from the bottom of the filter screen 3, and the driving member 2 drives the spiral conveyor shaft 4 to rotate to make the microplastic mixed liquid move upward. During the upward movement, the liquid in the mixture passes through the mesh holes of the filter screen 3 and is discharged from the filtration device. When the microplastic mixture is lifted to the upper part of the filter screen 3, it is completely separated from the liquid. Due to the inclination of the filter screen 3 itself, the microplastics finally fall into the collection container 11 under the action of gravity, and there will be no phenomenon that the microplastics block the pipeline and affect the use. Moreover, the user can easily remove the collected microplastic mixture by cleaning the collector 11, which provides convenience for the customer and increases the service life of the microplastic filtration device.

[0022] Among them, the aperture design of the mesh holes of the filter screen 3 can meet water but not microplastics, and no limitation is made here.

[0023] Further, the spiral conveyor shaft 4 has the same length as the filter screen 3, and the outer end surface of the spiral part of the spiral conveyor shaft 4 is in contact with the inner end surface of the filter screen 3. Affected by the size and shape of the spiral conveyor shaft 4, the liquid mixture can be input from the starting end to the end of the filter screen 3 while the microplastics and the liquid can be completely separated.

[0024] Among them, the spiral conveyor shaft 4 is preferably made of stainless steel or rubber material, and no limitation is made here.

[0025] Further, one end of the inner housing 9 is provided with a sewage inlet pipe 10 connected to the sewage discharge pipe of the external washing machine, and the other end of the sewage inlet pipe 10 is communicated with the bottom of the filter screen 3. The water after washing can be introduced into the filter screen 3 through the provided sewage inlet pipe 10, so as to meet the subsequent filtration operation.

[0026] Further, the waste discharge pipe 6 is located at the outer end of the inner housing 9. A cover plate 7 is provided at the outlet of the waste discharge pipe 6. A hinge 8 hinged to the cover plate 7 is provided at the top end of the waste discharge pipe 6. The cover plate 7 has two functions. One is to prevent microplastics from splashing during the rotation of the screw conveyor shaft 4, which affects collection. The other is that when the material enters the tail end of the screw conveyor shaft 4, the cooperation of the screw of the screw conveyor shaft 4 and the cover plate 7 can assist in squeezing the microplastics into a solid state. When the size of the solid state can push the cover plate 7 outwards, the solid state can automatically fall into the collection container 11, which facilitates the subsequent collection operation of the microplastics.

[0027] Further, the driving member 2 is a motor. The output end of the motor is connected to the tail end of the shaft portion of the screw conveyor shaft 4. A bearing is also provided on the top wall of the mounting frame 5. The shaft portion of the screw conveyor shaft 4 is connected to the inner shaft ring of the bearing. The driving member 2 provides a power source for the rotation of the screw conveyor shaft 4, and the bearing provided assists in guiding the rotation of the screw conveyor shaft 4 to ensure the stability of the rotation of the screw conveyor shaft 4. A water seal is also provided outside the bearing.

[0028] Among them, the motor is electrically connected to the main control board of the washing machine (not shown in the figure).

[0029] Further, an outer housing 1 is provided to cover the outer end of the inner housing 9. The lower end of the outer housing 1 has a drainage opening 102. A drainage cavity communicating with the drainage opening 102 is opened on the inner housing 9 below the filter screen 3. The drainage opening 102 is connected to an external drainage pipe. The filtered wastewater can be directly discharged into the drainage pipe through the drainage opening 102 and then discharged through the drainage pipe, thus realizing the separation operation of the liquid and the microplastics.

[0030] Among them, the outer housing 1 is installed inside the washing machine or installed in cooperation with the outside of the washing machine, and the specific position is not elaborated here.

[0031] Further, a supporting platform 101 for supporting the collection container 11 is provided inside the outer housing 1. Both the supporting platform 101 and the collection container 11 have drainage mesh holes. The drainage mesh holes provided can also drain part of the water remaining in the microplastics to ensure the separation effect.

[0032] Among them, the bottom of the supporting platform 101 is connected to the drainage opening 102.

[0033] Further, a handle 111 is provided on the end face of the collection container 11. The handle 111 is fixed to the side wall of the outer housing 1 by means of clamping or buckling. The handle 111 provided can facilitate the removal of the collection container 11 for cleaning.

[0034] Among them, the clamping or buckling structure is a very commonly used structure in the prior art and will not be specifically described here.

[0035] In summary, a rotary filtration section is designed inside the device. Through the cooperation of the filter screen 3 and the spiral conveyor shaft 4, the microplastic mixture can be effectively separated from the liquid and automatically collected in the collection container 11 of the filtration device. Customers no longer need to clean the filter screen 3, which provides convenience for customers and can increase the service life of the microplastic filtration device.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for filtering microplastics, comprising an inner shell, characterized in that: The inner shell has a accommodating cavity, in which an upwardly inclined mounting frame is provided, a filter screen having the same inclination angle as the mounting frame is installed on the inner side of the mounting frame, the filter screen is cylindrical and has a hollow filter cavity, a spiral conveying shaft is accommodated inside the filter cavity, a driving member connected to the spiral conveying shaft and capable of driving the spiral conveying shaft to rotate is provided at the rear end of the mounting frame, a waste pipe is installed at the top outlet of the filter screen, and a collection container for collecting waste is provided below the waste pipe.

2. A device for filtering microplastics according to claim 1, characterized in that: The length of the spiral conveying shaft is the same as that of the filter screen, and the outer end surface of the spiral portion of the spiral conveying shaft is in contact with the inner end surface of the filter screen.

3. A device for filtering microplastics according to claim 1, characterized in that: One end of the inner shell is provided with a sewage inlet pipe connected to the sewage pipe of the external washing machine, and the other end of the sewage inlet pipe is connected to the bottom of the filter screen.

4. A device for filtering microplastics according to claim 1, characterized in that: The waste discharge pipe is located at the outer end of the inner shell body, a cover plate is provided at the outlet of the waste discharge pipe, and a hinge hinged to the cover plate is provided at the top end of the waste discharge pipe.

5. A device for filtering microplastics according to claim 1, characterized in that: The driving member is a motor, the output end of the motor is connected to the tail end of the shaft of the screw conveying shaft, the top wall of the mounting frame is also provided with a bearing, and the shaft of the screw conveying shaft is connected to the inner shaft ring of the bearing.

6. A device for filtering microplastics according to claim 1, characterized in that: The outer end cover of the inner shell is provided with an outer shell, the lower end of the outer shell has a drainage opening, a drainage cavity connected to the drainage opening is opened on the inner shell below the filter, and the drainage opening is connected to an external drainage pipe.

7. A device for filtering microplastics according to claim 6, characterized in that: A supporting platform for supporting the collection container is disposed inside the outer shell, and both the supporting platform and the collection container have drainage mesh holes.

8. A device for filtering microplastics according to claim 7, characterized in that: A handle is provided on the end surface of the collecting container, and the handle is fixed to the side wall of the outer shell by means of a snap connection or a buckle connection.

Images