Check valve convenient to clean

Abstract

The utility model relates to the field of check valves, and discloses a check valve convenient to clean, which comprises a check valve body provided with a cleaning mechanism; the cleaning mechanism comprises a valve plate, a side plate, a hydraulic cylinder, an abutting plate, a toothed plate, a rotating shaft, a gear and a cleaning scraper; the side plate is fixedly installed on the check valve body, the hydraulic cylinder is fixedly installed on the side plate, a hydraulic rod of the hydraulic cylinder is fixedly connected with the abutting plate, the toothed plate is fixedly installed at the bottom of the abutting plate, the rotating shaft is rotatably installed on the valve plate, the end of the rotating shaft is fixedly connected with the gear, the cleaning scraper is fixedly connected with the rotating shaft, and the cleaning scraper is fixedly connected with the rotating shaft. The cleaning mechanism further comprises a collecting hopper and a material collecting bottle, a discharging hole is formed in the check valve body, and the collecting hopper is fixedly installed in the discharging hole. The utility model has the following advantages and effects: impurities on the valve plate can be conveniently and automatically cleaned and collected, manual cleaning is not needed, and the use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of check valve technology, and in particular to a check valve that is easy to clean. Background Technology

[0002] Fireproof backflow preventers function to prevent fire, prevent backflow of smoke, and guide upward airflow. They are integral metal components that prevent smoke from flowing back into the flue. Furthermore, in the event of a fire in the building, if the fire spreads into the shared flue, the valve will automatically close, preventing the fire from spreading to your home and giving you more time to save property and escape. The fireproof backflow preventer opens in the same direction as the exhaust pipe of the range hood, ensuring smoother exhaust.

[0003] The prior art patent document CN215806587U discloses a fireproof check valve, which discloses that it "includes a valve body, a valve plate, a fusible link, and a locking mechanism; the valve body has an air inlet that allows smoke to enter the valve body, the valve plate is disposed inside the valve body and hinged to the valve body; the locking mechanism includes a torsion spring and a locking rod, the two ends of the locking rod being a connecting end and a free end, respectively, the torsion spring is installed inside the valve body, with one end abutting against the inner wall of the valve body, and the other end fixedly connected to the connecting end of the locking rod; the fusible link is fixedly connected to the valve body, and the free end of the locking rod abuts against the fusible link, when the fusible link melts, the torsion spring drives the locking rod to rotate around the axis of the torsion spring through its own elastic force, so that the free end of the locking rod can abut against the valve plate covering the air inlet."

[0004] When in use, the valve plate in the check valve cannot be cleaned. When a lot of impurities accumulate on the valve plate, the staff needs to clean the impurities on the valve plate manually, which is not convenient to use. Therefore, it is necessary to design a check valve that is easy to clean to solve the above problems.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a check valve that is easy to clean, in order to solve the above-mentioned problems.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a check valve that is easy to clean, comprising:

[0008] A check valve body, wherein a cleaning mechanism is provided on the check valve body;

[0009] The cleaning mechanism includes a valve plate, a side plate, a hydraulic cylinder, a clamping plate, a toothed plate, a rotating shaft, gears, and a cleaning scraper.

[0010] The side plate is fixedly mounted on the check valve body, the hydraulic cylinder is fixedly mounted on the side plate, the hydraulic rod of the hydraulic cylinder is fixedly connected to the abutment plate, the toothed plate is fixedly mounted on the bottom of the abutment plate, the rotating shaft is rotatably mounted on the valve plate, the end of the rotating shaft is fixedly connected to the gear, and the cleaning scraper is fixedly connected to the rotating shaft.

[0011] A further feature of this invention is that the cleaning mechanism includes a collection hopper and a collection bottle, the check valve body has a discharge hole, the collection hopper is fixedly installed in the discharge hole, and the collection bottle is threadedly connected to the collection hopper.

[0012] A further feature of this invention is that: an annular groove is provided at the end of the check valve body, a rod is fixedly installed in the annular groove, a rotating plate is rotatably sleeved on the outside of the rod, one end of a torsion spring is fixedly installed on the rotating plate, the other end of the torsion spring is fixedly connected to the rod, and the rotating plate is fixedly connected to the valve plate.

[0013] By adopting the above technical solution, the use of the valve body becomes more convenient.

[0014] A further feature of this invention is that a damping washer is fixedly provided on the valve plate, and the rotating shaft abuts against the inner side of the damping washer.

[0015] A further feature of this invention is that the cleaning scraper is in contact with the valve plate.

[0016] By adopting the above technical solution, it is convenient to clean impurities on the valve plate.

[0017] A further feature of this invention is that a vertical hole is provided on the inner wall of the bottom of the annular groove.

[0018] By adopting the above technical solution, it is convenient for the top of the collection bottle to pass through the vertical hole.

[0019] A further feature of this invention is that the toothed plate is located above the gear.

[0020] A further feature of this invention is that the bottom of the collecting hopper is provided with a threaded discharge port, and the collecting bottle is provided with an external thread, which is threadedly connected to the threaded discharge port.

[0021] The beneficial effects of this utility model are:

[0022] This invention features a cleaning mechanism that activates a hydraulic cylinder when cleaning the valve plate is required. This causes a clamping plate to press against and limit the valve plate, and a toothed plate to mesh with a gear. As the toothed plate continues to move downward, the rotating shaft drives the cleaning scraper to rotate. The cleaning scraper can clean and remove impurities from the valve plate. After cleaning, the clamping plate and toothed plate can be moved back to their original positions without affecting the normal use of the valve plate. Furthermore, it can collect impurities without requiring manual cleaning, making it convenient to use. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of a check valve that is easy to clean, as proposed in this utility model.

[0025] Figure 2 This is a cross-sectional view of a check valve that is easy to clean, as proposed in this utility model.

[0026] Figure 3 yes Figure 2 A schematic diagram of part A in the diagram.

[0027] Figure 4 yes Figure 2 A schematic diagram of part B in the diagram.

[0028] In the diagram, 1. Check valve body; 2. Circular groove; 3. Rod; 4. Rotary plate; 5. Valve plate; 6. Torsion spring; 7. Side plate; 8. Hydraulic cylinder; 9. Clamping plate; 10. Toothed plate; 11. Rotary shaft; 12. Gear; 13. Cleaning scraper; 14. Collection hopper; 15. Collection bottle. Detailed Implementation

[0029] In the description of this utility model, 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0030] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a check valve that is easy to clean, comprising:

[0032] The check valve body 1 is equipped with a cleaning mechanism. It should be noted that the cleaning mechanism can automatically clean the valve plate 5 without manual cleaning, and can collect and process impurities, making it convenient to use.

[0033] The cleaning mechanism includes a valve plate 5, a side plate 7, a hydraulic cylinder 8, a clamping plate 9, a toothed plate 10, a rotating shaft 11, a gear 12, and a cleaning scraper 13;

[0034] Side plate 7 is fixedly installed on check valve body 1, hydraulic cylinder 8 is fixedly installed on side plate 7, hydraulic rod of hydraulic cylinder 8 is fixedly connected to clamping plate 9, toothed plate 10 is fixedly installed on bottom of clamping plate 9, rotating shaft 11 is rotatably installed on valve plate 5, end of rotating shaft 11 is fixedly connected to gear 12, and cleaning scraper 13 is fixedly connected to rotating shaft 11.

[0035] With the aforementioned cleaning mechanism, when it is necessary to clean the valve plate 5, the hydraulic cylinder 8 is activated, and the clamping plate 9 moves down to abut against the valve plate 5, thus limiting the valve plate 5 until the toothed plate 10 meshes with the gear 12. Then the toothed plate 10 continues to move down, which causes the gear 12 to rotate. The gear 12 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the cleaning scraper 13 to rotate. The cleaning scraper 13 can clean and remove impurities on the valve plate 5.

[0036] Specifically, the cleaning mechanism also includes a collection hopper 14 and a collection bottle 15. A discharge hole is provided on the check valve body 1, the collection hopper 14 is fixedly installed in the discharge hole, and the collection bottle 15 is threadedly connected to the collection hopper 14.

[0037] Through the aforementioned cleaning mechanism, the collecting hopper 14 can collect the falling impurities and guide them into the collecting bottle 15 for further collection. Subsequently, it is only necessary to remove the collecting bottle 15 and pour out the collected impurities.

[0038] Specifically, the check valve body 1 has an annular groove 2 at one end, a rod 3 is fixedly installed in the annular groove 2, a rotating plate 4 is rotatably sleeved on the outside of the rod 3, one end of a torsion spring 6 is fixedly installed on the rotating plate 4, the other end of the torsion spring 6 is fixedly connected to the rod 3, and the rotating plate 4 is fixedly connected to the valve plate 5.

[0039] With the above structure, when the fume duct is exhausting smoke, the smoke will push the valve plate 5, causing the valve plate 5 to rotate at a certain angle. The smoke will be discharged through the gap between the valve plate 5 and the check valve body 1. During this process, the rotating plate 4 can squeeze the torsion spring 6. When the smoke is not being exhausted, the torsion spring 6 will reset, thus allowing the valve plate 5 to return to its original position.

[0040] Specifically, a damping washer is fixedly installed on the valve plate 5, and the rotating shaft 11 abuts against the inner side of the damping washer. It should be noted that this can ensure the stability of the rotating shaft 11 after it rotates to a certain position.

[0041] Specifically, the cleaning scraper 13 comes into contact with the valve plate 5, which facilitates the scraping and cleaning of impurities on the valve plate 5.

[0042] Specifically, a vertical hole is provided on the inner wall of the bottom of the annular groove 2, a threaded discharge port is provided at the bottom of the collecting hopper 14, and an external thread is provided on the collecting bottle 15. The external thread is threaded to the threaded discharge port. It should be noted that the vertical hole facilitates the top of the collecting bottle 15 to pass through, and the threaded connection facilitates the disassembly and assembly of the collecting bottle 15.

[0043] Specifically, the toothed plate 10 is located above the gear 12. It should be noted that when the toothed plate 10 moves down, it can mesh with the gear 12.

[0044] Working principle:

[0045] S1: When exhausting smoke in the fume duct, the smoke will push the valve plate 5, causing the valve plate 5 to rotate at a certain angle. The smoke will be discharged through the gap between the valve plate 5 and the check valve body 1. During this process, the rotating plate 4 can squeeze the torsion spring 6. When not exhausting smoke, the torsion spring 6 will reset, so that the valve plate 5 can return to its original position.

[0046] S2: When it is necessary to clean the valve plate 5, the smoke exhaust work is not performed. The hydraulic cylinder 8 is started. The hydraulic cylinder 8 drives the pressing plate 9 to move down. The pressing plate 9 drives the toothed plate 10 to move down. After the pressing plate 9 moves down, it can abut against the valve plate 5. In this way, the valve plate 5 can be limited until the toothed plate 10 meshes with the gear 12.

[0047] S3: Then the toothed plate 10 continues to move down, which allows the gear 12 to rotate. The gear 12 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the cleaning scraper 13 to rotate. The cleaning scraper 13 can clean and scrape off the impurities on the valve plate 5. After cleaning, the clamping plate 9 and the toothed plate 10 can be moved back to their original positions without affecting the normal use of the valve plate 5.

[0048] S4: The collecting hopper 14 can collect the falling impurities and guide them into the collecting bottle 15 for collection. Afterwards, you only need to remove the collecting bottle 15 and pour out the collected impurities.

[0049] The present invention provides a detailed description of a convenient and easy-to-clean check valve. Specific embodiments have been used to illustrate the principle and implementation of the present invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A check valve that is easy to clean, characterized in that, include: Check valve body (1), wherein a cleaning mechanism is provided on the check valve body (1); The cleaning mechanism includes a valve plate (5), a side plate (7), a hydraulic cylinder (8), a clamping plate (9), a toothed plate (10), a rotating shaft (11), a gear (12), and a cleaning scraper (13); The side plate (7) is fixedly installed on the check valve body (1), the hydraulic cylinder (8) is fixedly installed on the side plate (7), the hydraulic rod of the hydraulic cylinder (8) is fixedly connected to the clamping plate (9), the toothed plate (10) is fixedly installed on the bottom of the clamping plate (9), the rotating shaft (11) is rotatably installed on the valve plate (5), the end of the rotating shaft (11) is fixedly connected to the gear (12), and the cleaning scraper (13) is fixedly connected to the rotating shaft (11).

2. The check valve for easy cleaning according to claim 1, characterized in that, The cleaning mechanism also includes a collection hopper (14) and a collection bottle (15). The check valve body (1) is provided with a discharge hole. The collection hopper (14) is fixedly installed in the discharge hole. The collection bottle (15) is threadedly connected to the collection hopper (14).

3. The check valve for easy cleaning according to claim 1, characterized in that, The check valve body (1) has an annular groove (2) at one end. A rod (3) is fixedly installed in the annular groove (2). A rotating plate (4) is rotatably sleeved on the outside of the rod (3). One end of a torsion spring (6) is fixedly installed on the rotating plate (4). The other end of the torsion spring (6) is fixedly connected to the rod (3). The rotating plate (4) is fixedly connected to the valve plate (5).

4. The check valve that is easy to clean according to claim 1, characterized in that, A damping washer is fixedly installed on the valve plate (5), and the rotating shaft (11) abuts against the inner side of the damping washer.

5. The check valve that is easy to clean according to claim 1, characterized in that, The cleaning scraper (13) is in contact with the valve plate (5).

6. A check valve that is easy to clean according to claim 3, characterized in that, A vertical hole is provided on the inner wall of the bottom of the annular groove (2).

7. The check valve that is easy to clean according to claim 1, characterized in that, The toothed plate (10) is located above the gear (12).

8. The check valve that is easy to clean according to claim 2, characterized in that, The bottom of the collecting hopper (14) is provided with a threaded discharge port, and the collecting bottle (15) is provided with an external thread, which is threadedly connected to the threaded discharge port.

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