Check valve with filtering mechanism
By introducing a filter plate and a cleaning mechanism into the check valve, the problem of loose closure or jamming caused by the entry of impurities is solved, and the stability and service life of the valve are improved.
Patent Information
- Application Number
- CN202422753664.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Existing check valves lack a filtering mechanism, which allows impurities to enter the valve interior, resulting in loose closure or jamming, affecting service life and performance.
A check valve with a filtering mechanism is designed, which includes a filter plate, a filter screen, a cleaning mechanism and a limit assembly. Impurities are filtered through the filter plate, and impurities on the connecting pipe and the filter screen are cleaned after stopping work to prevent the valve from closing loosely or getting stuck.
It improves the stability and practicality of the valve, prevents impurities from entering the valve, prolongs the service life and ensures normal working performance.
Smart Images
Figure CN223424745U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valve attachments, in particular to a check valve with a filtering mechanism. Background Art
[0002] As we all know, with the development of industrial technology, various types of valves are widely used in different fields, such as chemical, pharmaceutical, and food processing industries. Among them, the check valve is an automatic valve that is used to prevent the backflow of media in the pipeline. When the media flows forward, the valve automatically opens; when the media flows backward, the valve closes. Check valves can be divided into many types according to their structure. Common types include swing check valves, lift check valves, butterfly check valves, etc.
[0003] During use, it was found that an existing check valve had no filtering mechanism inside, so that impurities may flow with the medium and enter the inside of the check valve, causing problems such as the valve not closing tightly or getting stuck, thereby affecting the normal working performance and service life of the check valve, resulting in poor practicality. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a check valve with a filtering mechanism that can filter impurities inside the valve body to prevent problems such as the valve being loosely closed or stuck, thereby improving the stability of the valve body and thus enhancing its practicality.
[0005] The utility model discloses a check valve with a filtering mechanism, comprising a valve body, a filter plate, two groups of filter screens, a connecting pipe, a sealing cover, a cleaning mechanism and a limiting assembly. A filter plate is arranged on the inner side of the valve body, the filter plate is evenly provided with two groups of reserved holes, and the two groups of filter plate reserved holes are respectively provided with a group of filter screens. A cleaning mechanism is arranged on the left end of the filter plate, a reserved hole is arranged on the left end of the bottom of the valve body, the reserved hole of the valve body is connected to the top outside of the connecting pipe, a threaded end is arranged at the bottom outside of the connecting pipe, a groove is arranged at the top of the sealing cover, the groove of the sealing cover is threadedly connected to the outer side of the connecting pipe through the threaded end, and the bottom of the valve body is tightly attached to the bottom of the sealing cover through the limiting assembly.
[0006] Preferably, the cleaning mechanism includes a mounting block, a connecting rod, a fixed block, a first slider, a connecting block, a connecting plate, two groups of annular plates, two groups of cleaning brushes and a rebound assembly, a slide groove is provided at the left end of the filter plate, the first slider is slidably connected to the filter plate slide groove, the left end of the first slider is connected to the right end of the connecting block, the left end of the connecting block is connected to the right end of the connecting plate, the bottom of the left end of the connecting plate is connected to the right end of the mounting block, the top of the connecting rod is connected to the top of the mounting block, the inner right end of the connecting tube is connected to the right end of the fixed block, the fixed block is provided with a reserved hole, the outer side of the connecting rod is slidably connected to the reserved hole of the fixed block, the front and rear ends of the right side of the connecting plate are respectively connected to the left end of a group of annular plates, the left ends of the two groups of cleaning brushes are respectively slidably fitted on the inner side of the annular plate, and the right ends of the two groups of cleaning brushes are respectively slid and tightly fitted on the left end of a group of filter nets, and two groups of rebound assemblies are evenly provided on the left end of the connecting plate.
[0007] Preferably, the rebound assembly includes two groups of sleeves, two groups of connecting springs and two groups of damping rods. The left end of the connecting plate is evenly connected to the right ends of the two groups of sleeves. The right ends of the two groups of sleeves are respectively provided with reserved holes, and the connecting plate is through-type and the right ends of the two groups of sleeves are provided with reserved holes. The left ends of the two groups of damping rods are respectively connected to the left ends of the sleeve grooves, and the right ends of the two groups of damping rods pass through the reserved holes of the connecting plate and are connected to the left end of the cleaning brush, and connecting springs are respectively provided on the outsides of the two groups of damping rods.
[0008] Preferably, the limiting assembly includes a fixed plate, a first screw, a second slider and a pressure plate. The bottom of the valve body is connected to the top of the fixed plate. A slide groove is provided at the left end of the fixed plate. The two ends of the first screw are respectively rotatably connected to the fixed plate slide groove. The second slider is threadedly connected to the first screw, and the second slider is respectively slidably connected to the fixed plate slide groove. The left end of the second slider is connected to the right end of the pressure plate, and the top of the pressure plate is tightly attached to the bottom of the sealing cover.
[0009] Preferably, it further comprises an annular handle, and an annular handle is provided on the outside of the sealing cover.
[0010] Preferably, a sealing gasket is further included, the bottom of the connecting pipe is connected to the top of the sealing gasket, and the bottom of the sealing gasket is tightly attached to the bottom of the sealing cover groove.
[0011] Preferably, two groups of first handles are further included, the bottom of the connecting rod is connected to the top of one group of first handles, and the bottom of the first screw rod passes through the bottom of the fixed plate slide groove and is connected to the top of the other group of first handles.
[0012] Preferably, two groups of sponge pads are further included, the top of the pressure plate is connected to the bottom of the sponge pad, and the top of the sponge pad is tightly attached to the bottom of the sealing cover.
[0013] Compared with the prior art, the beneficial effect of the check valve with a filtering mechanism of the present invention is as follows: when the valve body is in normal use, impurities will flow with the medium and enter the inside of the check valve, and then be filtered through the filter screen on the filter plate, and finally flow into the connecting pipe. When the work stops, the staff adjusts the limit assembly so that the limit assembly is cancelled and tightly attached to the bottom of the sealing cover, and then the staff rotates the sealing cover to disengage the threaded connection between the sealing cover and the connecting pipe, and then starts to clean the impurities in the connecting pipe, and finally cleans the impurities attached to the surface of the filter screen through the cleaning mechanism. The impurities on the inside of the valve body can be filtered to prevent problems such as the valve from closing tightly or getting stuck, thereby improving the stability of the valve body and thus enhancing its practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0015] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the utility model;
[0016] Figure 3 This is a schematic diagram of the front structural plan section of the present invention;
[0017] Figure 4 It is an enlarged schematic diagram of the local structure of A of the present utility model;
[0018] Markings in the accompanying drawings: 1. Valve body; 2. Filter plate; 3. Filter screen; 4. Connecting pipe; 5. Sealing cover; 6. Mounting block; 7. Connecting rod; 8. Fixed block; 9. First slider; 10. Connecting block; 11. Connecting plate; 12. Annular plate; 13. Cleaning brush; 14. Sleeve; 15. Connecting spring; 16. Damping rod; 17. Fixed plate; 18. First screw; 19. Second slider; 20. Pressing plate; 21. Annular handle; 22. Sealing gasket; 23. First handle; 24. Sponge pad. DETAILED DESCRIPTION
[0019] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0020] like Figures 1 to 4As shown, a check valve with a filtering mechanism of the present invention comprises a valve body 1, a filter plate 2, two groups of filter screens 3, a connecting pipe 4, a sealing cover 5, a cleaning mechanism and a limit assembly. A filter plate 2 is provided on the inside of the valve body 1. The filter plate 2 is evenly provided with two groups of reserved holes, and the two groups of filter plate 2 reserved holes are respectively provided with a group of filter screens 3. A cleaning mechanism is provided on the left end of the filter plate 2. A reserved hole is provided on the left end of the bottom of the valve body 1. The reserved hole of the valve body 1 is connected to the top outside of the connecting pipe 4. The bottom outside of the connecting pipe 4 is provided with a threaded end. The top of the sealing cover 5 is provided with a groove. The groove of the sealing cover 5 is threadedly connected to the outer side of the connecting pipe 4 through the threaded end. The bottom of the valve body 1 is threaded. The limit assembly and the bottom of the sealing cover 5 are tightly fitted together; when the valve body is in normal use, impurities will flow with the medium and enter the inside of the check valve, and then be filtered through the filter screen on the filter plate, and finally flow into the connecting pipe. When the work stops, the staff adjusts the limit assembly so that the limit assembly is removed and tightly fitted with the bottom of the sealing cover, and then the staff rotates the sealing cover to disengage the threaded connection between the sealing cover and the connecting pipe, and then starts to clean the impurities in the connecting pipe, and finally uses the cleaning mechanism to clean the impurities attached to the surface of the filter screen. The impurities on the inside of the valve body can be filtered to prevent problems such as the valve from closing tightly or getting stuck, thereby improving the stability of the valve body and thus enhancing its practicality.
[0021] As a preferred embodiment of the above, the cleaning mechanism includes a mounting block 6, a connecting rod 7, a fixed block 8, a first slider 9, a connecting block 10, a connecting plate 11, two groups of annular plates 12, two groups of cleaning brushes 13 and a rebound component. The left end of the filter plate 2 is provided with a slide groove, the first slider 9 is slidably connected to the slide groove of the filter plate 2, the left end of the first slider 9 is connected to the right end of the connecting block 10, the left end of the connecting block 10 is connected to the right end of the connecting plate 11, the bottom of the left end of the connecting plate 11 is connected to the right end of the mounting block 6, the top of the connecting rod 7 is connected to the top of the mounting block 6, the inner right end of the connecting pipe 4 is connected to the right end of the fixed block 8, the fixed block 8 is provided with a reserved hole, and the outer side of the connecting rod 7 is slidably connected to the reserved hole of the fixed block 8 The front and rear ends of the right side of the connecting plate 11 are respectively connected to the left end of a group of annular plates 12, and the left ends of the two groups of cleaning brushes 13 are respectively slidably fitted on the inner side of the annular plate 12, and the right ends of the two groups of cleaning brushes 13 are respectively tightly fitted on the left end of a group of filter screens 3, and two groups of rebound components are evenly arranged on the left end of the connecting plate 11; the staff pulls the connecting rod so that the connecting plate drives the cleaning brushes to slide through the first slider, and at the same time, the right ends of the two groups of cleaning brushes start to clean the impurities attached to the filter screen, and the rebound component is extended and retracted so that the two groups of cleaning brushes always keep close to one end of the filter screen, which enables the staff to quickly clean the filter screen, thereby enhancing practicality.
[0022] As a preferred embodiment of the above embodiment, the rebound assembly includes two groups of sleeves 14, two groups of connecting springs 15 and two groups of damping rods 16. The left end of the connecting plate 11 is evenly connected to the right ends of the two groups of sleeves 14. The right ends of the two groups of sleeves 14 are respectively provided with reserved holes, and the connecting plate 11 is through-type and the right ends of the two groups of sleeves 14 are provided with reserved holes. The left ends of the two groups of damping rods 16 are respectively connected to the left ends of the grooves of the sleeves 14, and the right ends of the two groups of damping rods 16 pass through the reserved holes of the connecting plate 11 and are connected to the left end of the cleaning brush 13, and the outer sides of the two groups of damping rods 16 are respectively provided with connecting springs 15; through the expansion and contraction of multiple groups of damping rods and connecting springs, the cleaning brush and the annular plate can be slidably fitted, and always remain in close contact with one end of the filter screen, thereby enhancing practicality.
[0023] As a preferred embodiment of the above embodiment, the limiting assembly includes a fixed plate 17, a first screw 18, a second slider 19 and a pressure plate 20. The bottom of the valve body 1 is connected to the top of the fixed plate 17, and a slide groove is provided at the left end of the fixed plate 17. The two ends of the first screw 18 are respectively rotatably connected to the slide groove of the fixed plate 17. The second slider 19 is threadedly connected to the first screw 18, and the second slider 19 is respectively slidably connected to the slide groove of the fixed plate 17. The left end of the second slider 19 is connected to the right end of the pressure plate 20, and the top of the pressure plate 20 is tightly attached to the bottom of the sealing cover 5; the staff rotates the first screw to make the second slider drive the pressure plate to slide until the top of the pressure plate is tightly attached to or out of contact with the bottom of the sealing cover, so that the staff can quickly limit the sealing cover, thereby enhancing practicality.
[0024] As a preference of the above embodiment, an annular handle 21 is further included. An annular handle 21 is provided on the outside of the sealing cover 5; the staff can rotate the sealing cover quickly, thereby enhancing practicality.
[0025] As a preference of the above embodiment, a sealing gasket 22 is further included, the bottom of the connecting pipe 4 is connected to the top of the sealing gasket 22, and the bottom of the sealing gasket 22 is tightly attached to the bottom of the groove of the sealing cover 5; the sealing effect of the connecting pipe and the sealing cover groove can be improved, thereby enhancing practicality.
[0026] As a preference of the above embodiment, two groups of first handles 23 are further included, the bottom of the connecting rod 7 is connected to the top of one group of first handles 23, and the bottom of the first screw 18 passes through the bottom of the slide groove of the fixed plate 17 and is connected to the top of the other group of first handles 23; this allows the staff to quickly pull the connecting rod and rotate the first screw, thereby enhancing practicality.
[0027] As a preference of the above embodiment, two groups of sponge pads 24 are further included, the top of the pressure plate 20 and the bottom of the sponge pad 24 are connected, and the top of the sponge pad 24 and the bottom of the sealing cover 5 are in close contact; this can effectively reduce the wear on the sealing cover caused by extrusion friction, thereby enhancing practicality.
[0028] The utility model relates to a check valve with a filtering mechanism. When the valve body is in operation and the valve body is in normal use, impurities will flow with the medium and enter the inside of the check valve, and then be filtered through the filter screen on the filter plate and finally flow into the connecting pipe. When the work stops, the staff rotates the first screw through the first handle, so that the second slider drives the pressure plate to slide until the top of the pressure plate and the bottom of the sealing cover are separated and tightly attached. Then the staff rotates the sealing cover through the annular handle, so that the sealing cover and the connecting pipe are separated from the threaded connection, and then start to clean the impurities in the connecting pipe. Finally, the staff pulls the connecting rod through the first handle, so that the connecting plate drives the cleaning brush to slide through the first slider, and at the same time, the right ends of the two sets of cleaning brushes start to clean the impurities attached to the filter screen, and the damping rod and the connecting spring are extended and retracted, so that the two sets of cleaning brushes always keep close to one end of the filter screen, and start to clean the impurities attached to the surface of the filter screen. Before completing the above actions, it will first be moved to the position required by the user.
[0029] The terms "vertical," "horizontal," "left," "right," and the like are used herein for descriptive purposes only.
[0030] The "first", "second" and "third" in the present invention do not represent specific quantities and orders, but are only used to distinguish names.
[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A check valve with a filtering mechanism, comprising a valve body (1), characterized in that: The valve body (1) further comprises a filter plate (2), two groups of filter screens (3), a connecting pipe (4), a sealing cover (5), a cleaning mechanism and a limiting assembly. The filter plate (2) is provided on the inner side of the valve body (1). The filter plate (2) is evenly provided with two groups of reserved holes, and the reserved holes of the two groups of filter plates (2) are respectively provided with a group of filter screens (3). The left end of the filter plate (2) is provided with a cleaning mechanism. The left end of the bottom of the valve body (1) is provided with a reserved hole. The reserved hole of the valve body (1) is connected to the top of the outer side of the connecting pipe (4). The bottom of the outer side of the connecting pipe (4) is provided with a threaded end. The top of the sealing cover (5) is provided with a groove. The groove of the sealing cover (5) is threadedly connected to the outer side of the connecting pipe (4) through the threaded end. The bottom of the valve body (1) is tightly attached to the bottom of the sealing cover (5) through the limiting assembly.
2. A check valve with a filtering mechanism according to claim 1, characterized in that: The cleaning mechanism comprises a mounting block (6), a connecting rod (7), a fixing block (8), a first slider (9), a connecting block (10), a connecting plate (11), two groups of annular plates (12), two groups of cleaning brushes (13) and a rebound component. A sliding groove is provided at the left end of the filter plate (2). The first slider (9) and the filter plate (2) are slidably connected via the sliding groove. The left end of the first slider (9) is connected to the right end of the connecting block (10). The left end of the connecting block (10) is connected to the right end of the connecting plate (11). The bottom of the left end of the connecting plate (11) is connected to the right end of the mounting block (6). The connecting rod (7) The top is connected to the top of the mounting block (6), the right end of the inner side of the connecting pipe (4) is connected to the right end of the fixing block (8), the fixing block (8) is provided with a reserved hole, the outer side of the connecting rod (7) is slidably connected to the reserved hole of the fixing block (8), the front and rear ends of the right side of the connecting plate (11) are respectively connected to the left end of a group of annular plates (12), the left ends of the two groups of cleaning brushes (13) are respectively slidably fitted on the inner side of the annular plates (12), and the right ends of the two groups of cleaning brushes (13) are respectively slidably fitted on the left end of a group of filter screens (3), and the left end of the connecting plate (11) is evenly provided with two groups of rebound components.
3. A check valve with a filtering mechanism according to claim 2, characterized in that: The rebound assembly comprises two groups of sleeves (14), two groups of connecting springs (15) and two groups of damping rods (16); the left end of the connecting plate (11) is evenly connected to the right ends of the two groups of sleeves (14); the right ends of the two groups of sleeves (14) are respectively provided with reserved holes; and the connecting plate (11) is penetrated and provided with reserved holes at the right ends of the two groups of sleeves (14); the left ends of the two groups of damping rods (16) are respectively connected to the left ends of the grooves of the sleeves (14); the right ends of the two groups of damping rods (16) pass through the reserved holes of the connecting plate (11) and are connected to the left end of the cleaning brush (13); and the outer sides of the two groups of damping rods (16) are respectively provided with connecting springs (15).
4. A check valve with a filtering mechanism as claimed in claim 3, characterized in that: The limiting assembly includes a fixed plate (17), a first screw (18), a second slider (19) and a pressure plate (20). The bottom of the valve body (1) is connected to the top of the fixed plate (17). A slide groove is provided at the left end of the fixed plate (17). The two ends of the first screw (18) are respectively rotatably connected to the slide groove of the fixed plate (17). The second slider (19) is threadedly connected to the first screw (18), and the second slider (19) is respectively slidably connected to the slide groove of the fixed plate (17). The left end of the second slider (19) is connected to the right end of the pressure plate (20), and the top of the pressure plate (20) is tightly attached to the bottom of the sealing cover (5).
5. A check valve with a filtering mechanism as claimed in claim 4, characterized in that: It also includes an annular handle (21), which is arranged on the outside of the sealing cover (5).
6. A check valve with a filtering mechanism according to claim 5, characterized in that: It also includes a sealing gasket (22), the bottom of the connecting pipe (4) and the top of the sealing gasket (22) are connected, and the bottom of the sealing gasket (22) is tightly attached to the bottom of the sealing cover (5) groove.
7. A check valve with a filtering mechanism according to claim 6, characterized in that: It also includes two groups of first handles (23), the bottom of the connecting rod (7) is connected to the top of one group of first handles (23), and the bottom of the first screw rod (18) passes through the bottom of the sliding groove of the fixing plate (17) and is connected to the top of the other group of first handles (23).
8. A check valve with a filtering mechanism according to claim 7, characterized in that: It also includes two groups of sponge pads (24), the top of the pressure plate (20) and the bottom of the sponge pad (24) are connected, and the top of the sponge pad (24) and the bottom of the sealing cover (5) are in close contact.