Sewage filtering structure
By designing a multi-stage filtration structure, the hygiene and clogging problems of existing automatic cleaning robot filtration structures are solved, achieving efficient filtration and easy maintenance, and adapting to the cleaning needs of different dirty environments.
Patent Information
- Application Number
- CN202520092250.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-15
AI Technical Summary
The existing automatic cleaning robots have filter structures that require manual disassembly and cleaning, leading to hygiene problems. They also have poor filtration effects or are prone to clogging, making them unsuitable for environments with varying levels of dirt.
It adopts a multi-stage filtration structure, including a combination of a support, filter frame, filter bag and metal filter screen. It uses threaded connection and sheet metal part design to achieve multi-stage filtration and easy disassembly. The filter frame is welded with a 60-mesh metal filter screen, and the filter bag is 150-300 mesh, thus realizing multi-stage filtration.
It achieves efficient filtration of over 95% of impurities such as mud and sand, avoids clogging of air passages, extends the life of drain valves, simplifies maintenance, and adapts to environments with varying levels of dirt.
Smart Images
Figure CN223732231U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic cleaning robot technology, and in particular to a sewage filtration structure. Background Technology
[0002] An automatic cleaning robot is a device that can automatically clean indoor or outdoor environments, and has functions such as environmental recognition, path planning, autonomous navigation, intelligent obstacle avoidance, and automatic cleaning.
[0003] In the office, automated cleaning robots can intelligently plan cleaning routes based on the office layout and facilities, effectively cleaning areas such as floors, desktops, and windows. This not only improves cleaning efficiency but also reduces the disruption to employees' work caused by manual cleaning, enhancing the cleanliness and comfort of the office environment.
[0004] Currently, automated floor cleaning robots all use simple single-stage filtration structures (filter frames or filter bags, etc.); this type of structure has the following drawbacks:
[0005] 1. Filter bag structures are more troublesome to maintain. After the robot finishes cleaning, the filter bags need to be removed by hand, the garbage needs to be emptied, the bags need to be cleaned, and then tied back to the robot. The operator's hands need to come into contact with sewage, mud, etc., so hygiene cannot be guaranteed.
[0006] 2. The filtration methods of the filter frame and filter bag are all single-stage filtration. Either the mesh size is too low and the filtration effect is poor, or the mesh size is too high and it will easily block the air path and cause the robot to stop. It cannot adapt to environments with different levels of dirt on the ground.
[0007] 3. For extremely dirty environments, ordinary filtration structures cannot filter out most of the mud and sand, and the robot's drain valve cannot be effectively protected.
[0008] Therefore, we propose a novel wastewater filtration structure. Utility Model Content
[0009] The purpose of this invention is to solve the problem in the existing technology where, after the robot cleaning is completed, the filter bag needs to be removed by hand, the garbage poured out, and then the bag washed and tied back to the robot. This causes the operator's hands to come into contact with sewage, mud, etc., and hygiene cannot be guaranteed.
[0010] To achieve the above objectives, the present invention adopts the following technical solution: a sewage filtration structure, including a support frame, a sewage tank is provided on the outer surface of the support frame, an air intake is provided at the front end of the sewage tank, a hand-tightening nut is connected to the top of one side of the support frame, a filter frame is connected to the bottom of the hand-tightening nut, a filter bag is connected to the bottom of the filter frame, a baffle is connected to the inside of the filter bag, and a metal filter screen is connected to the top of the baffle.
[0011] Furthermore, the bracket has a water inlet on its surface near the hand-tightening nut, and the top of the filter frame is connected to a cover.
[0012] Furthermore, the baffle has small holes with a diameter of 3mm arranged in an equidistant array on the surface near the filter frame, and the size of the cover matches the size of the filter frame.
[0013] Furthermore, the hand-tightening nut and the filter frame are connected by a thread, and the metal filter screen is a 60-mesh filter screen.
[0014] Furthermore, the filter bag has a mesh size of 150-300.
[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0016] In this invention, by integrating the different filtration effects of the filter frame and the filter bag, a low-mesh filter screen is welded inside the filter frame, and a high-mesh filter bag is used on the outside, which can filter different types of impurities in different areas; a simple support is designed inside the sewage tank, which facilitates disassembly and maintenance while ensuring excellent filtration effect. Attached Figure Description
[0017] Figure 1 This utility model provides a three-dimensional structural diagram of a wastewater filtration structure;
[0018] Figure 2 This utility model provides a schematic diagram of a filter frame structure for a wastewater filtration system.
[0019] Figure 3 This utility model presents an exploded structural diagram of a filter frame for a wastewater filtration structure.
[0020] Illustration: 1. Bracket; 2. Hand-tightening nut; 3. Filter frame; 4. Filter bag; 5. Metal filter screen; 6. Baffle; 7. Water inlet; 8. Cover; 9. Wastewater tank; 10. Air intake. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Examples, such as Figure 1 - Figure 3 As shown, this utility model provides a sewage filtration structure, including a support 1, a sewage tank 9 on the outer surface of the support 1, an air intake 10 at the front end of the sewage tank 9, a hand-tightening nut 2 connected to the top of one side of the support 1, a filter frame 3 connected to the bottom of the hand-tightening nut 2, a filter bag 4 connected to the bottom of the filter frame 3, a baffle 6 connected inside the filter bag 4, a metal filter screen 5 connected to the top of the baffle 6, a water inlet 7 on the surface of the support 1 near the hand-tightening nut 2, a cover 8 connected to the top of the filter frame 3, small holes with a diameter of 3mm evenly arranged on the surface of the baffle 6 near the filter frame, the size of the cover 8 matching the size of the filter frame 3, a threaded connection between the hand-tightening nut 2 and the filter frame 3, a 60-mesh metal filter screen 5, and a 150-300 mesh filter bag 4.
[0024] The effect achieved by the entire embodiment 1 is that the bracket 1 is fixed inside the sewage tank 9, and a hand-tightening nut 2 is installed on the bracket 1 to fix the filter frame 3. During installation, the filter frame 3 is placed on the bracket 1, and the support plates on both sides of the bracket 1 are slid to the water inlet 7. The hand-tightening nut 2 is then unscrewed, and the bottom screw of the hand-tightening nut 2 is inserted into the small hole of the filter frame 3 to lock the filter frame 3 in place. To disassemble, the hand-tightening nut 2 is loosened and the filter frame 3 is removed.
[0025] A baffle 6 and a metal filter screen 5 are welded inside the filter frame 3. The metal filter screen 5 is a 60-mesh filter screen. The height ratio of the baffle 6 and the metal filter screen 5 is adjusted according to the structure. A small hole with a diameter of 3mm is opened on the left side of the filter frame 3 to filter larger impurities. A large-capacity filter bag 4 with a mesh size of 150-300 is hung at the bottom of the filter frame.
[0026] When the floor cleaning robot is working, the vacuum motor generates negative pressure, which is transmitted to the wastewater tank 9 through the suction port 10. At this time, the wastewater tank 9 is under negative pressure, and wastewater and impurities on the ground are sucked into the filter frame 3 through the water inlet 7. Larger impurities such as small stones or silt will fall to the right side of the baffle 6, or fall into the right side area of the baffle 6 after hitting the baffle 6 and the metal filter screen 5. Lighter floating objects such as hair will be tumbled upwards by the negative pressure airflow and pass through the top of the metal filter screen 5 and the gap of the cover 8 to the left side area of the baffle 6. After being sucked in, wastewater and water vapor pass through the metal filter screen 5 to the left side area, and then flow into the filter bag 4 at the bottom through the small holes of the filter frame 3. The fine silt and sand in the filter frame 3 along with the wastewater reach the filter bag 4. Since the filter bag 4 is a high-mesh filter bag, most of the silt and sand passes through and is deposited inside the filter bag 4. This achieves multi-stage filtration of wastewater.
[0027] Wastewater deposited in the right area of baffle 6 will flow to the left area through the metal filter screen 5 after exceeding baffle 6. If the right area is full of impurities such as mud and sand, the left area can also store impurities after exceeding the metal filter screen 5. The impurities that pass through the small holes of the filter frame 3 will eventually be blocked by the filter bag 4 at the bottom. When both areas are full of impurities, the filter frame 3 can be removed to pour out the impurities and clean them.
[0028] Working principle: This structure is assembled from sheet metal parts, standard parts, and filter bags 4. It requires no mold making, is low in cost, and is easy to install and use. This structure can filter more than 95% of impurities such as mud and sand, preventing mud and sand from passing through the robot's drain valve, greatly improving the service life of the drain valve. This structure is easy to disassemble and install. When using it, simply loosen the hand-tightening nut 2 on the top of the filter frame 3 to remove the entire structure. This structure is a multi-stage filtration method and can be used in ground environments with various levels of dirt; even in extremely dirty conditions, it will not block the air passage and affect the normal operation of the robot.
[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A sewage filtering structure comprising a support (1), characterized in that: The outer surface of the support (1) is provided with a sewage tank (9), the front end of the sewage tank (9) is provided with an air suction port (10), one side top of the support (1) is connected with a hand nut (2), the bottom of the hand nut (2) is connected with a filter frame (3), the bottom of the filter frame (3) is connected with a filter bag (4), the inside of the filter bag (4) is connected with a baffle (6), the top of the baffle (6) is connected with a metal filter screen (5).
2. The sewage filtering structure according to claim 1, characterized in that: The surface of the support (1) close to the hand nut (2) is provided with a water inlet (7), the top of the filter frame (3) is connected with a cover (8).
3. The sewage filtering structure according to claim 2, characterized in that: The surface of the baffle (6) close to the filter frame is provided with equidistant array of small holes with a diameter of 3mm, the size of the cover (8) matches the size of the filter frame (3).
4. The sewage filtering structure according to claim 3, characterized in that: The hand nut (2) and the filter frame (3) are threadedly connected, the metal filter screen (5) is a 60-mesh filter screen.
5. The sewage filtering structure according to claim 4, characterized in that: The filter bag (4) is a 150-300 mesh filter bag.