Check valve convenient to filter

Abstract

The utility model discloses a check valve convenient to filter, which belongs to the technical field of check valves, and comprises a valve body, a mounting groove is arranged in the valve body, a telescopic rod is fixedly connected in the mounting groove, a spring is sleeved on the surface of the telescopic rod, a connecting plate is fixedly connected with the top end of the telescopic rod, and the connecting plate is fixedly connected with the valve body. The check valve convenient to filter comprises a valve body, a telescopic rod is fixedly connected to the lower surface of a connecting plate, one end of the spring is fixedly connected to the lower surface of the connecting plate, a movable rod is fixedly connected to the lower surface of the connecting plate, a movable plate is fixedly connected to the bottom end of the movable rod, and an isolation plate is fixedly connected to the interior of the valve body. In the process that a worker uses the device to conduct auxiliary conveying on fluid in a pipeline, under the cooperation of a telescopic rod and a spring, a movable rod can drive a sealing ring on the surface of a movable plate to be arranged in an isolation plate in a penetrating mode, and therefore the phenomenon that the fluid flows back in the conveying process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, and more specifically to a check valve which is convenient for filtering. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shutoff valve to the various valves used in extremely complex automatic control systems. A check valve is a valve whose opening and closing parts are circular discs and which rely on its own weight and medium pressure to produce movement to block the backflow of the medium. The function of this type of valve is to allow the medium to flow in one direction only and prevent it from flowing in the opposite direction. However, existing check valves are not convenient for workers to clean the filter screen inside the valve body, which can easily cause the check valve to be blocked. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a check valve that is easy to filter and has the characteristic of being easy to clean the filter screen inside the valve body.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides a check valve which is convenient for filtration, comprising a valve body, an installation groove is provided inside the valve body, a telescopic rod is fixedly connected inside the installation groove, a spring is sleeved on the surface of the telescopic rod, a connecting plate is fixedly connected to the top of the telescopic rod, one end of the spring is fixedly connected to the lower surface of the connecting plate, a movable rod is fixedly connected to the lower surface of the connecting plate, a movable plate is fixedly connected to the bottom end of the movable rod, an isolation plate is fixedly connected to the inside of the valve body, a sealing ring is fixedly connected to the surface of the movable plate, the movable plate and the sealing ring are penetrated inside the isolation plate, a drainage port is fixedly connected to the side of the valve body, a first bearing is fixedly connected to the surface of the drainage port, a There is a first rotating shaft, a first bevel gear is fixedly connected to the bottom end of the first rotating shaft, a filter screen is fixedly connected to the inside of the drainage port, a second bearing is fixedly connected to the surface of the filter screen, a second rotating shaft is passed through the inside of the second bearing, one end of the second rotating shaft is fixedly connected to the second bevel gear, the first bevel gear and the second bevel gear are meshed, the other end of the second rotating shaft is fixedly connected to a mounting plate, a cleaning brush is fixedly connected to the surface of the mounting plate, the cleaning brush is attached to the surface of the filter screen, a sewage outlet is fixedly connected to the lower surface of the drainage port, a connecting head is sleeved on the surface of the sewage outlet, a collecting groove is fixedly connected to the bottom end of the connecting head, a sealing cover is passed through the inside of the mounting groove, and a fixing bolt is passed through the surface of the sealing cover.

[0007] When using the check valve that is easy to filter of the technical solution, with the cooperation of the telescopic rod and the spring, the movable rod can drive the sealing ring on the surface of the movable plate to penetrate into the interior of the isolation plate to avoid the backflow of the fluid during the transportation process, and the first rotating shaft is driven to rotate by the knob. With the cooperation of the first bevel gear and the second bevel gear, the mounting plate can drive the cleaning brush to clean the filter screen to avoid clogging of the filter screen by impurities.

[0008] Furthermore, a knob is fixedly connected to the top end of the first rotating shaft, and a surface of the knob is provided with anti-slip patterns.

[0009] Furthermore, the telescopic rods and springs are provided in two groups, and are symmetrically arranged inside the mounting groove.

[0010] Furthermore, there are a plurality of fixing bolts, which are evenly arranged on the upper surface of the sealing cover, and the sealing cover and the mounting groove are fixedly connected by the fixing bolts.

[0011] Furthermore, the surface of the sewage outlet is provided with an external thread, the interior of the connecting head is provided with an internal thread, and the sewage outlet and the connecting head are fixedly connected by threads.

[0012] Furthermore, a sleeve is fixedly connected to the lower surface of the mounting groove, and the movable rod is inserted into the interior of the sleeve.

[0013] Furthermore, the sealing ring is made of rubber material, and the other side of the valve body is fixedly connected with a drain port.

[0014] (3) Beneficial effects

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. The check valve that is easy to filter is provided with a telescopic rod and a spring. When the staff uses the device to assist in the delivery of the fluid inside the pipeline, the movable rod can drive the sealing ring on the surface of the movable plate to penetrate the inside of the isolation plate under the cooperation of the telescopic rod and the spring, thereby avoiding the phenomenon of backflow of the fluid during the delivery process;

[0017] 2. The check valve which is easy to filter is provided with a first bevel gear and a second bevel gear. When the staff uses the device to assist in the delivery of the fluid inside the pipeline, they only need to drive the first rotating shaft to rotate by the knob. With the cooperation of the first bevel gear and the second bevel gear, the mounting plate can drive the cleaning brush to clean the filter screen, thereby avoiding the clogging of the filter screen by impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for describing the specific implementation or the prior art will be briefly introduced below. Obviously, the drawings described below are only one implementation of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a three-dimensional section of the utility model.

[0021] The symbols in the accompanying drawings are:

[0022] 1. Valve body; 2. Mounting groove; 3. Telescopic rod; 4. Spring; 5. Connecting plate; 6. Movable rod; 7. Sleeve; 8. Isolation plate; 9. Movable plate; 10. Sealing ring; 11. Sealing cover; 12. Fixing bolt; 13. Drainage port; 14. First bearing; 15. First rotating shaft; 16. Knob; 17. Filter screen; 18. Second bearing; 19. Second rotating shaft; 20. Second bevel gear; 21. Mounting plate; 22. Cleaning brush; 23. Drainage port; 24. Connector; 25. Collecting tank; 26. Drainage port; 27. First bevel gear. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the technical scheme in the specific implementation mode of the utility model is clearly and completely described below to further illustrate the utility model. Obviously, the specific implementation mode described is only a part of the implementation mode of the utility model, rather than all styles.

[0024] Example:

[0025] The following is combined with Figure 1-2 The utility model is described in further detail.

[0026] See also Figure 1-2 The utility model provides a technical solution: a check valve that is easy to filter, including a valve body 1, a mounting groove 2 is opened inside the valve body 1, a telescopic rod 3 is fixedly connected inside the mounting groove 2, a spring 4 is sleeved on the surface of the telescopic rod 3, and by setting the telescopic rod 3 and the spring 4, under the cooperation of the telescopic rod 3 and the spring 4, the movable rod 6 can drive the sealing ring 10 on the surface of the movable plate 9 to penetrate the inside of the isolation plate 8 to avoid the phenomenon of backflow of the fluid during the transportation process, the top of the telescopic rod 3 is fixedly connected to the connecting plate 5, and one side of the spring 4 is fixedly connected to the connecting plate 5. The end is fixedly connected to the lower surface of the connecting plate 5, the lower surface of the connecting plate 5 is fixedly connected with a movable rod 6, the bottom end of the movable rod 6 is fixedly connected with a movable plate 9, the interior of the valve body 1 is fixedly connected with an isolation plate 8, the surface of the movable plate 9 is fixedly connected with a sealing ring 10, the movable plate 9 and the sealing ring 10 are penetrated inside the isolation plate 8, the side of the valve body 1 is fixedly connected with a drainage port 13, the surface of the drainage port 13 is fixedly connected with a first bearing 14, the interior of the first bearing 14 is penetrated with a first rotating shaft 15, and the bottom end of the first rotating shaft 15 is fixedly connected with a first The filter screen 17 is fixedly connected to the inside of the drainage port 13, and the second bearing 18 is fixedly connected to the surface of the filter screen 17. The second shaft 19 is penetrated inside the second bearing 18, and one end of the second shaft 19 is fixedly connected to the second bevel gear 20. By setting the first bevel gear 27 and the second bevel gear 20, the first shaft 15 can be driven to rotate by the knob 16. Under the cooperation of the first bevel gear 27 and the second bevel gear 20, the mounting plate 21 can drive the cleaning brush 22 to clean the filter screen 17 to avoid impurities. The first bevel gear 27 and the second bevel gear 20 are meshed with each other. The other end of the second rotating shaft 19 is fixedly connected with a mounting plate 21. A cleaning brush 22 is fixedly connected to the surface of the mounting plate 21. The cleaning brush 22 is attached to the surface of the filter 17. The lower surface of the drainage port 13 is fixedly connected with a sewage outlet 23. A connector 24 is sleeved on the surface of the sewage outlet 23. The bottom end of the connector 24 is fixedly connected with a collecting tank 25. A sealing cover 11 is penetrated inside the mounting tank 2. A fixing bolt 12 is penetrated on the surface of the sealing cover 11.

[0027] Specifically, a knob 16 is fixedly connected to the top of the first rotating shaft 15 , and a surface of the knob 16 is provided with anti-slip patterns.

[0028] Specifically, there are two groups of telescopic rods 3 and springs 4 , which are symmetrically arranged inside the installation slot 2 .

[0029] Specifically, there are a plurality of fixing bolts 12 , which are evenly arranged on the upper surface of the sealing cover 11 , and the sealing cover 11 and the mounting groove 2 are fixedly connected by the fixing bolts 12 .

[0030] Specifically, an external thread is formed on the surface of the sewage outlet 23, and an internal thread is formed inside the connector 24. The sewage outlet 23 and the connector 24 are fixedly connected by threads.

[0031] Specifically, a sleeve 7 is fixedly connected to the lower surface of the installation groove 2 , and the movable rod 6 is inserted into the interior of the sleeve 7 .

[0032] Specifically, the sealing ring 10 is made of rubber material, and the other side of the valve body 1 is fixedly connected with a drain port 26 .

[0033] The working principle of the utility model is as follows: when the utility model is used, the device is first moved to a suitable position, and then the integrity of the device is checked. When the staff uses the device to assist in the delivery of the fluid inside the pipeline, the staff first connects the drainage port 13 and the drainage port 26 to the pipeline respectively, and then, with the cooperation of the telescopic rod 3 and the spring 4, the sealing ring 10 on the surface of the movable plate 9 of the movable rod 6 can be penetrated into the interior of the isolation plate 8, thereby preventing the fluid from flowing back, and under the action of the filter 17, the impurities inside the fluid can be filtered to avoid the fluid from clogging the device. When the staff needs to filter the rubber of the filter 17, the staff first drives the first rotating shaft 15 to rotate through the knob 16, and then the first rotating shaft 15 rotates through the second bevel gear 20 of the first bevel gear 27, and then the second bevel gear 20 drives the cleaning brush 22 on the surface of the mounting plate 21 to rotate through the second rotating shaft 19, thereby starting to clean the filter 17, and the filtered rotating shaft is injected into the interior of the collecting tank 25 through the sewage outlet 23.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A check valve for easy filtration, comprising a valve body (1), characterized in that: The valve body (1) is provided with a mounting groove (2), the mounting groove (2) is fixedly connected with a telescopic rod (3), the surface of the telescopic rod (3) is sleeved with a spring (4), the top of the telescopic rod (3) is fixedly connected with a connecting plate (5), one end of the spring (4) is fixedly connected to the lower surface of the connecting plate (5), the lower surface of the connecting plate (5) is fixedly connected with a movable rod (6), the bottom end of the movable rod (6) is fixedly connected with a movable plate (9), the inside of the valve body (1) is fixedly connected with an isolation plate (8), the surface of the movable plate (9) is fixedly connected with a sealing ring (10), the movable plate (9) and the sealing ring (10) are inserted into the inside of the isolation plate (8), the side of the valve body (1) is fixedly connected with a drainage port (13), the surface of the drainage port (13) is fixedly connected with a first bearing (14), the inside of the first bearing (14) is provided with a first rotating shaft (15), the bottom end of the first rotating shaft (15) is fixedly connected with a first cone gear (27), a filter screen (17) is fixedly connected inside the drainage port (13), a second bearing (18) is fixedly connected to the surface of the filter screen (17), a second rotating shaft (19) is passed through the inside of the second bearing (18), one end of the second rotating shaft (19) is fixedly connected to a second bevel gear (20), the first bevel gear (27) and the second bevel gear (20) are meshed, the other end of the second rotating shaft (19) is fixedly connected to a mounting plate (21), the A cleaning brush (22) is fixedly connected to the surface of the mounting plate (21), and the cleaning brush (22) is attached to the surface of the filter screen (17). A sewage outlet (23) is fixedly connected to the lower surface of the drainage port (13), and a connecting head (24) is sleeved on the surface of the sewage outlet (23). A collecting trough (25) is fixedly connected to the bottom end of the connecting head (24). A sealing cover (11) is passed through the interior of the mounting slot (2), and a fixing bolt (12) is passed through the surface of the sealing cover (11).

2. A check valve for easy filtration according to claim 1, characterized in that: The top end of the first rotating shaft (15) is fixedly connected with a knob (16), and the surface of the knob (16) is provided with anti-slip patterns.

3. A check valve for easy filtration according to claim 1, characterized in that: The telescopic rods (3) and springs (4) are provided in two groups, and are symmetrically arranged inside the installation groove (2).

4. A check valve for easy filtration according to claim 1, characterized in that: There are a plurality of fixing bolts (12) which are evenly arranged on the upper surface of the sealing cover (11); the sealing cover (11) and the mounting groove (2) are fixedly connected via the fixing bolts (12).

5. A check valve for easy filtration according to claim 1, characterized in that: The surface of the sewage outlet (23) is provided with an external thread, the interior of the connecting head (24) is provided with an internal thread, and the sewage outlet (23) and the connecting head (24) are fixedly connected via threads.

6. A check valve for easy filtration according to claim 1, characterized in that: The lower surface of the installation groove (2) is fixedly connected with a sleeve (7), and the movable rod (6) is inserted into the interior of the sleeve (7).

7. A check valve for easy filtration according to claim 1, characterized in that: The sealing ring (10) is made of rubber material, and the other side of the valve body (1) is fixedly connected to a liquid discharge port (26).

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