A security filter that is easy to replace
The design of the lifting and filtering components enables convenient replacement of the security filter element, solving the problem of difficult filter element replacement and improving work efficiency and filtration capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAYU RURAL ENVIRONMENTAL INFRASTRUCTURE OPERATION SERVICE CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-09
AI Technical Summary
The existing security filter cartridges are difficult to replace, resulting in low work efficiency.
A security filter that is easy to replace is designed. It adopts a structure of lifting components and filter components, which allows the filter plate to automatically rise to the outside of the housing for easy maintenance and replacement by staff. Automatic control is achieved through a drive unit and sensors.
It reduces the difficulty of operation, improves work efficiency, and increases the filtration area by setting the included angle, thereby improving the filtration capacity.
Smart Images
Figure CN224331635U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of security filter technology, and in particular relates to a security filter that is easy to replace. Background Technology
[0002] Security filters are a type of precision filter, working by using the pores of the filter element for mechanical filtration. Trace suspended particles, colloids, and microorganisms remaining in the water are trapped or adsorbed on the surface and within the pores of the filter element. As water purification time increases, the filter element becomes contaminated with trapped substances, and its operating resistance gradually rises. When the pressure difference between the inlet and outlet water reaches 0.1 MPa, the filter element should be replaced. The main advantages of security filters are high efficiency and low resistance. However, existing security filters are inconvenient to remove during later maintenance and replacement, often causing inconvenience to staff and seriously affecting their work efficiency. Utility Model Content
[0003] In view of this, the present invention aims to provide a security filter that is easy to replace, so as to solve the problem of low work efficiency caused by the difficulty in replacing the filter element of the existing security filter.
[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0005] A replaceable security filter includes a housing and a screw of a lifting assembly disposed within its upper cavity, a first sensor, a second sensor, a sealing unit, several first filter components, and several second filter components. The first and second sensors are respectively installed in the upper and lower parts of the housing. The upper part of the housing is snapped into a top cover, and an inlet and an outlet are respectively provided on opposite sides. Below the inlet are first and second filter components alternately sleeved on the outside of the screw of the lifting assembly, and the first and second filter components are arranged at an angle. The lifting assembly is used to drive the first and second filter components to move up and down. The first filter component includes a first nut and a first support plate fixedly sleeved on its outside, the first support plate being used to place the first filter plate, and the first nut being vertically sleeved on the outside of the screw of the lifting assembly. The second filter component includes a second nut and a second support plate fixedly sleeved on its outside, the second support plate being used to place the second filter plate, and the second nut being vertically sleeved on the outside of the screw of the lifting assembly.
[0006] Furthermore, a control module is installed on the outside of the housing, a touch screen is installed on the outside of the control module, an inlet valve is installed at the inlet, and an outlet valve is installed at the outlet. Both the inlet and outlet valves are electronic valves. The control module is connected to the touch screen, sensor 1, sensor 2, inlet valve, and outlet valve via signals.
[0007] Furthermore, the lifting assembly also includes a drive unit for driving the screw to rotate, so that the first nut and the second nut can move along the screw axis.
[0008] Furthermore, both the first and second nuts are trapezoidal nuts. The drive unit includes a turbine, which has a keyway inner hole that mates with the optical axis of the screw and is connected by a key. The screw rotates at the same speed as the turbine. When the screw rotates, the first and second nuts move up and down with the screw. There are two types of turbine drive structures: one is that the turbine is driven by a worm gear that extends outside the housing; the other is that the worm gear is connected to an external motor that drives the worm gear to rotate. The motor switch is located outside the housing, and the motor speed is preset.
[0009] Furthermore, the easily replaceable security filter also includes a partition that divides the housing into an upper cavity and a lower cavity, with the lower cavity housing a drive unit for installing the lifting assembly.
[0010] Furthermore, both the first filter plate and the first support plate are tilted to the right, with an tilt angle ranging from 2° to 5°; the upper part of the outer surface of the first nut is flush with the first filter plate, the lower part is flush with the first support plate, and the inner part is vertically sleeved with the screw.
[0011] Furthermore, both the second filter plate and the second support plate are tilted to the left, with an tilt angle ranging from 2° to 5°; the upper part of the outer side of the second nut is flush with the second filter plate, the lower part is flush with the second support plate, and the inner part is vertically sleeved with the screw.
[0012] Furthermore, the shell is a hollow cylindrical structure, and the first filter plate, the first support plate, the second filter plate, and the second support plate are all disc structures with the same outer diameter. The outer diameter of the first filter plate is smaller than the outer diameter of the shell, and the difference between the two outer diameters is in the range of 5mm-10mm.
[0013] Furthermore, the first filter plate and the second filter plate have different densities. The first filter plate is for coarse filtration, and the second filter plate is for fine filtration. The filter elements of the first filter plate and the second filter plate are made of polypropylene or polyvinylidene fluoride.
[0014] Furthermore, the easily replaceable security filter also includes a sealing unit, which is an annular rubber sheet that is threadedly connected to the screw. When the lifting assembly does not need to lift, the sealing unit is fixedly sleeved on the outside of the screw and tightly fitted to the partition below.
[0015] Compared with existing technologies, the easily replaceable security filter of this invention has the following advantages:
[0016] (1) The security filter that is easy to replace described in this utility model has a lifting component and a filter component structure that allows the filter plate to automatically rise to the outside of the housing, making it convenient for staff to inspect and replace, reducing the difficulty of operation and improving work efficiency.
[0017] (2) The security filter described in this utility model is easy to replace. The drive unit has two working modes, which can be adjusted by the staff according to the actual situation. It has strong versatility.
[0018] (3) The security filter that is easy to replace described in this utility model has the first filter component and the second filter component set at an angle so that after water enters from the inlet, it flows from one end of the first filter plate to the other end and then from one end of the second filter plate to the other end, preventing water from flowing directly from the middle of the first filter plate to the middle of the second filter plate, which greatly increases the filtration area and improves the filtration capacity. Attached Figure Description
[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0020] Figure 1 This is a schematic diagram of a cross-sectional view of the easily replaceable security filter described in an embodiment of the present invention;
[0021] Figure 2 for Figure 1 Enlarged view of section A in the middle;
[0022] Figure 3 This is a schematic diagram of the easily replaceable security filter described in an embodiment of the present invention.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1-Housing; 2-Lifting assembly; 21-Screw; 22-Drive unit; 3-First filter assembly; 31-First nut; 32-First filter plate; 33-First support plate; 4-Second filter assembly; 41-Second nut; 42-Second filter plate; 43-Second support plate; 5-Inlet; 6-Sensor No. 1; 7-Sensor No. 2; 8-Outlet; 9-Sealing unit; 10-Touch display screen; 11-Top cover; 12-Snap fastener; 13-Baffle. Detailed Implementation
[0025] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.
[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.
[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0028] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0029] An easy-to-replace security filter, such as Figures 1 to 3 As shown, the housing includes a housing 1 and a lifting assembly 2 with a screw 21, a first sensor 6, a second sensor 7, a sealing unit 9, several first filter components 3 and several second filter components 4, and the first sensor 6 and the second sensor 7 are respectively installed in the upper and lower parts of the housing 1. The upper part of the housing 1 is snapped into the upper cover 11, and the opposite sides are respectively provided with a water inlet 5 and a water outlet 8. Below the water inlet, there are first filter components 3 and second filter components 4 that are alternately sleeved on the outside of the screw 21 of the lifting assembly 2, and the first filter components 3 and the second filter components 4 are arranged at an angle. The lifting assembly 2 is used to drive the first filter assembly 3 and the second filter assembly 4 to move up and down. The first filter assembly 3 includes a first nut 31 and a first support plate 33 fixedly sleeved on its outside. The first support plate 33 is used to place the first filter plate 32, so that the first filter plate 32 can be directly removed when it is replaced. The first nut 31 is vertically sleeved on the outside of the screw 21 of the lifting assembly 2. The second filter assembly 4 includes a second nut 41 and a second support plate 43 fixedly sleeved on its outside. The second support plate 43 is used to place the second filter plate 42. The second nut 11 is vertically sleeved on the outside of the screw 21 of the lifting assembly 2.
[0030] A control module is also installed on the outside of the housing 1. A touch screen is installed on the outside of the control module. An inlet valve is installed at the inlet 5 and an outlet valve is installed at the outlet. Both the inlet and outlet valves are electronic valves. The control module is connected to the touch screen, sensor 6, sensor 7, inlet valve and outlet valve by signal.
[0031] In one embodiment, sensor 6 and sensor 7 are both pressure sensors suitable for measuring liquids, and they transmit signals to the control module wirelessly. The control module can be any existing control module capable of acquiring sensor signals and displaying them on a screen.
[0032] Preferably, both sensor 6 and sensor 7 are MEMS waterproof pressure sensors.
[0033] The lifting assembly 2 also includes a drive unit 22, which drives the screw 21 to rotate, so that the first nut 31 and the second nut 41 can move along the axial direction of the screw 21.
[0034] Preferably, the first nut 31 and the second nut 41 are both trapezoidal nuts. The drive unit 22 includes a turbine, which has a keyway inner hole that mates with the optical axis of the screw 21 and is connected by a key. The screw 21 rotates at the same speed as the turbine. When the screw 21 rotates, the first nut 31 and the second nut 41 move up and down with the screw. There are two ways to drive the turbine: one is to drive the turbine through a worm gear, which extends outside the housing 1, and the operator can manually rotate the worm gear to drive the turbine to rotate; the other is that the worm gear is connected to an external motor, which drives the worm gear to rotate. The motor switch is located outside the housing 1, and the motor speed is preset.
[0035] An easily replaceable security filter also includes a partition 13 that divides the housing 1 into an upper cavity and a lower cavity, wherein the lower cavity is used to install the drive unit 22 of the lifting assembly 1.
[0036] A replaceable security filter also includes a sealing unit 9, which is an annular rubber sheet that is threadedly connected to the screw 21. When the lifting assembly 2 does not need to be lifted, the sealing unit 9 is fixedly sleeved on the outside of the screw 21 and contacts the partition 13 below. When water flows into the lower chamber, the water pressure will press the sealing unit 9 tightly against the partition 13. In addition, the sealing unit 9 is made of rubber, which effectively ensures the sealing effect.
[0037] The first filter assembly 3 and the second filter assembly 4 are arranged at an angle so that after water enters from the inlet 5, it flows from one end of the first filter plate 32 to the other end and then from one end of the second filter plate 42 to the other end. This prevents water from flowing directly from the middle of the first filter plate 32 to the middle of the second filter plate 42, greatly increasing the filtration area and improving the filtration capacity.
[0038] Preferably, the first filter assembly 3 is tilted to the right relative to the screw 21. Specifically, both the first filter plate 32 and the first support plate 33 are tilted to the right, with an tilt angle ranging from 2° to 5°. The upper part of the outer side of the first nut 31 is flush with the first filter plate 32, the lower part is flush with the first support plate 33, and the inner part is vertically sleeved with the screw 21. This structure ensures that the structure of the first nut 31 is consistent with that of the first filter assembly 3 and does not affect the vertical relationship between the first filter assembly 3 and the screw 21, thus not affecting the lifting and lowering of the first filter assembly 3 by the lifting assembly 2.
[0039] Preferably, the second filter assembly 4 is tilted to the left relative to the screw 21. Specifically, the second filter plate 42 and the second support plate 43 are both tilted to the left, with an tilt angle ranging from 2° to 5°. The upper part of the outer side of the second nut 41 is flush with the second filter plate 42, the lower part is flush with the second support plate 43, and the inner part is vertically sleeved with the screw 21. This structure ensures that the structure of the second nut 41 is consistent with the second filter assembly 4 and does not affect the vertical relationship between the second filter assembly 4 and the screw 21, thus not affecting the lifting and lowering of the second filter assembly 4 by the lifting assembly 2.
[0040] In one or more embodiments, the housing 1 is a hollow cylindrical structure. The first filter plate 32, the first support plate 33, the second filter plate 42, and the second support plate 43 are all disc structures with the same outer diameter. The outer diameter of the first filter plate 32 is smaller than the outer diameter of the housing 1, and the difference between the two outer diameters is in the range of 5mm-10mm. This set value range does not affect the filtration function of the filter plate assembly, and at the same time can effectively avoid friction between the filter plate assembly and the inner wall of the housing 1, thus extending the service life of the filter plate.
[0041] Preferably, there are multiple filter plate assemblies, and the lowest point of the bottom filter plate is in the same direction as the outlet 8, so that the water can flow directly from the lowest point to the outlet after being filtered.
[0042] In one embodiment, the number of filter plate assemblies is 5, namely the first filter assembly 3, the second filter assembly 4, the first filter assembly 3, the second filter assembly 4, and the first filter assembly 3. In this case, the bottommost is the first filter assembly 3, which is tilted to the right, that is, the lowest point is the lower right. At this time, the water outlet 8 is also located at the lower right, so that the filtered water can flow directly to the water outlet 8 under the action of gravity.
[0043] In another embodiment, there are four filter plate assemblies, namely the first filter assembly 3, the second filter assembly 4, the first filter assembly 3, and the second filter assembly 4. In this case, the second filter assembly 4 is at the bottom and is tilted to the left, that is, the lowest point is the lower left. At this time, the water outlet 8 is also located at the lower left.
[0044] Preferably, the first filter plate 32 and the second filter plate 42 have different densities, resulting in different particle sizes. The first filter plate 32 performs coarse filtration, while the second filter plate 42 performs fine filtration, enabling this security filter to adapt to different filtration requirements and increasing its versatility. The materials of the filter elements of the first filter plate 32 and the second filter plate 42 vary depending on the application scenario. Preferably, the materials of the filter elements of the first filter plate 32 and the second filter plate 42 are polypropylene or polyvinylidene fluoride.
[0045] In one or more embodiments, a plurality of snap fasteners 12 are circumferentially installed on the upper edge of the housing 1, and the housing 1 is snapped to the upper cover 11 by the snap fasteners 12.
[0046] The control method of this application is through a control module. The control circuit of the control module can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this application is mainly used to include mechanical devices, the control method and circuit connection will not be explained in detail here.
[0047] The working principle of an easy-to-replace security filter is as follows:
[0048] When the security filter is running, water enters through inlet 5, passes through the first filter assembly 3 and the second filter assembly 4 in sequence, and finally exits through outlet 8. Sensors 6 and 7 monitor the data inside the housing 1 in real time and transmit it to the control module. When the control module determines that the filter assembly inside the housing 1 needs to be replaced, it will display this on the touch screen 10. The control module will then close the inlet valve to stop the water flow and discharge the water through outlet 8, and wait for further instructions. When the operator opens the top cover 11, if the motor is used, turning on the motor switch will cause the motor to rotate through the turbine, which will cause the first nut 31 to lift the first filter assembly 3 and the second nut 41 to lift the second filter assembly 4. When the filter assembly reaches the set position, the operator can remove the first filter plate 32 and the second filter plate 42. If the turbine is manually driven, the height to which the filter assembly rises can be adjusted manually according to the actual situation. This structure allows the filter plates to automatically rise to the outside of the housing, facilitating maintenance and replacement by the operator, reducing operational difficulty, and improving work efficiency.
[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A security filter that is easy to replace, characterized in that: The device includes a housing and a lifting assembly with a screw, a first sensor, a second sensor, a sealing unit, several first filter components, and several second filter components, all housed within the housing. The first and second sensors are installed in the upper and lower parts of the housing, respectively. The housing is snapped into a top cover, with an inlet and an outlet on opposite sides. Below the inlet are first and second filter components alternately sleeved on the outside of the lifting assembly screw, arranged at an angle. The lifting assembly drives the first and second filter components to move up and down. Each first filter component includes a first nut and a first support plate fixedly sleeved on its outside, which holds a first filter plate. The first nut is vertically sleeved on the outside of the lifting assembly screw. Each second filter component includes a second nut and a second support plate fixedly sleeved on its outside, which holds a second filter plate. The second nut is vertically sleeved on the outside of the lifting assembly screw.
2. The easily replaceable security filter according to claim 1, characterized in that: A control module is also installed on the outside of the housing. A touch screen is installed on the outside of the control module. An inlet valve is installed at the water inlet and an outlet valve is installed at the water outlet. Both the inlet and outlet valves are electronic valves. The control module is connected to the touch screen, sensor 1, sensor 2, inlet valve, and outlet valve via signals.
3. The easily replaceable security filter according to claim 1, characterized in that: The lifting assembly also includes a drive unit, which drives the screw to rotate, enabling the first nut and the second nut to move along the screw axis.
4. A replaceable security filter according to claim 3, characterized in that: Both the first and second nuts are trapezoidal nuts. The drive unit includes a turbine, which has a keyway inner hole that mates with the optical shaft of the screw and is connected by a key. The screw rotates at the same speed as the turbine. When the screw rotates, the first and second nuts move up and down with the screw. There are two types of turbine drive structures: one is that the turbine is driven by a worm gear that extends outside the housing; the other is that the worm gear is connected to an external motor that drives the worm gear to rotate. The motor switch is located outside the housing, and the motor speed is preset.
5. A replaceable security filter according to claim 3, characterized in that: It also includes a partition that divides the housing into an upper cavity and a lower cavity, with the drive unit for installing the lifting assembly inside the lower cavity.
6. A replaceable security filter according to claim 1, characterized in that: Both the first filter plate and the first support plate are tilted to the right, with an tilt angle ranging from 2° to 5°; the upper part of the outer side of the first nut is flush with the first filter plate, the lower part is flush with the first support plate, and the inner part is vertically sleeved with the screw.
7. A replaceable security filter according to claim 1, characterized in that: Both the second filter plate and the second support plate are tilted to the left, with an tilt angle ranging from 2° to 5°; the upper part of the outer side of the second nut is flush with the second filter plate, the lower part is flush with the second support plate, and the inner part is vertically sleeved with the screw.
8. A security filter that is easy to replace according to claim 1, characterized in that: The shell is a hollow cylindrical structure. The first filter plate, the first support plate, the second filter plate, and the second support plate are all disc structures with the same outer diameter. The outer diameter of the first filter plate is smaller than the outer diameter of the shell, and the difference between the two outer diameters is in the range of 5mm-10mm.
9. A replaceable security filter according to claim 1, characterized in that: The first and second filter plates have different densities. The first filter plate is for coarse filtration, while the second filter plate is for fine filtration. The filter elements of both the first and second filter plates are made of polypropylene or polyvinylidene fluoride.
10. A replaceable security filter according to claim 5, characterized in that: It also includes a sealing unit, which is a ring-shaped rubber sheet that is threadedly connected to the screw. When the lifting assembly does not need to lift, the sealing unit is fixedly fitted to the outside of the screw and tightly fitted to the partition below.