Valve element

Abstract

The utility model discloses a valve element which comprises a valve cover, a first driving rod is rotatably connected to the valve cover and penetrates through the valve cover, the lower end of the first driving rod is fixedly connected with a valve clack, the end, away from the valve clack, of the first driving rod is fixedly connected with a first handle, and a through hole is formed in the valve clack. A through hole is formed in the valve clack, a filter screen matched with the through hole is fixedly connected to the valve clack, a cleaning structure used for cleaning the filter screen is installed on the first driving rod, the first driving rod is cylindrical, the cleaning structure comprises a cleaning plate, a second driving rod matched with the cleaning plate is installed on the first driving rod, and the cleaning plate is fixedly connected with the second driving rod. And one end of the second driving rod penetrates through the first driving rod and is fixedly connected with the cleaning plate. Compared with the prior art, the valve element has the advantages that when low-flow-speed and low-pressure fluid is cut off, a filtering structure and the valve element can be integrally arranged, complexity of a fluid conveying system is reduced, maintenance time is shortened, and maintenance difficulty is lowered.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve cores, in particular to a valve core. Background Art

[0002] Valves are key components for controlling fluid flow. The valve core, a crucial component of a valve, primarily functions to achieve precise control by changing the flow path or interrupting the flow. However, most valve core designs currently available lack integrated filtration capabilities, making them unsuitable for applications requiring impurity removal or fluid purification.

[0003] In the prior art, the valve core and the filter device are often set separately and exist independently. Especially when conveying low-flow-rate, low-pressure fluids, such a setting not only increases the complexity of the fluid conveying system, but may also lead to increased installation costs, while increasing the time and difficulty of maintenance.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] The purpose of the present utility model is to provide a valve core, which can solve the technical problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A valve core includes a valve cover, a first drive rod is rotated and connected to the valve cover, the first drive rod passes through the valve cover, the lower end of the first drive rod is fixedly connected to a valve disc, the end of the first drive rod away from the valve disc is fixedly connected to a first handle, a through hole is opened in the valve disc, and a filter screen matching the through hole is fixedly connected to the valve disc.

[0008] In one or more embodiments of the present invention, a cleaning structure for cleaning the filter is installed on the first driving rod.

[0009] In one or more embodiments of the present invention, the first driving rod is cylindrical, the cleaning structure includes a cleaning plate, a second driving rod matching the cleaning plate is installed on the first driving rod, and one end of the second driving rod passes through the first driving rod and is fixedly connected to the cleaning plate.

[0010] In one or more embodiments of the present invention, a storage bin matching the cleaning plate is provided on the upper end surface of the through hole.

[0011] In one or more embodiments of the present invention, a plurality of crushing teeth are fixedly connected to the lower end surface of the cleaning plate, and a plurality of cleaning brushes are fixedly connected to the side wall of the cleaning plate.

[0012] In one or more embodiments of the present invention, an expansion portion is fixedly connected to the first drive rod, a second handle matching the expansion portion is fixedly connected to the second drive rod, a third sealing ring matching the inner wall of the expansion portion is fixedly connected to the side wall of the second handle, and a fourth sealing ring is fixedly connected to the inner top wall of the expansion portion.

[0013] In one or more embodiments of the present invention, the second sealing ring is fixedly connected to the bottom wall of the first driving rod, and the first sealing ring is fixedly connected to the inner wall of the first driving rod near the cleaning plate.

[0014] In one or more embodiments of the present invention, one end of the second driving rod away from the valve disc is fixedly connected to a second handle.

[0015] In one or more embodiments of the present invention, a spring seat is installed between the first handle and the second handle.

[0016] In one or more embodiments of the present invention, the spring seat includes two mounting seats, a spring is installed between the two mounting seats, and two ends of the spring are fixedly connected to the two mounting seats respectively.

[0017] Compared with the prior art, the valve core of the present invention can integrate the filter structure and the valve core when cutting off low-flow-rate, low-pressure fluids, thereby reducing the complexity of the fluid delivery system and facilitating reduced maintenance time and difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a first structural schematic diagram of a valve core in one embodiment of the utility model;

[0020] Figure 2 This is a second structural schematic diagram of a valve core in one embodiment of the utility model;

[0021] Figure 3 This is a cross-sectional view of a valve core in one embodiment of the present utility model;

[0022] Figure 4 As Figure 3 Structure schematic view at A in the middle;

[0023] Figure 5 As Figure 3 Structure schematic view at B in the middle;

[0024] Figure 6 Structure schematic view of the spring seat in an embodiment of the present application.

[0025] Main figure mark explanation:

[0026] 1, valve cover; 2, first drive rod; 3, enlarged part; 301, hollow cavity; 4, first handle; 5, valve flap; 501, through hole; 502, storage bin; 6, filter screen; 7, cleaning structure; 8, second drive rod; 801, second handle; 9, cleaning plate; 10, crushing tooth; 11, cleaning brush; 12, first sealing ring; 13, second sealing ring; 14, third sealing ring; 15, fourth sealing ring; 16, spring seat; 17, mounting seat; 18, spring. Specific implementation

[0027] In order to make the person in the technical field better understand the technical scheme in the present application, the technical scheme in the embodiment of the present application will be described clearly and completely below in combination with the drawings in the embodiment of the present application. Obviously, the described embodiment is only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0028] As Figures 1 and 2 shown, a valve core in an embodiment of the present application, including valve cover 1, the valve cover 1 is rotationally connected with first drive rod 2, first drive rod 2 penetrates valve cover 1, the lower end of first drive rod 2 is fixedly connected with valve flap 5, the end of first drive rod 2 away from valve flap 5 is fixedly connected with first handle 4, and through hole 501 is formed in valve flap 5. Rotating first handle 4 can rotate with first drive rod 2, first drive rod 2 rotates with valve flap 5, when through hole 501 is towards the passage of valve body, the valve is in open state, otherwise, the valve is in closed state.

[0029] As Figures 1 and 2 shown, valve flap 5 is fixedly connected with filter screen 6 matched with through hole 501, when fluid passes through filter screen 6, the fluid is filtered by filter screen 6, and the impurities in the fluid are filtered.

[0030] After filtering for a period of time, the filter 6 may become clogged. Therefore, a cleaning structure 7 for cleaning the filter 6 is installed on the first driving rod 2. The cleaning structure 7 can process impurities on the filter 6, and the impurities on one side of the cleaning structure 7 can be crushed so that the impurities can pass through the filter 6, thereby achieving the cleaning of impurities in the valve disc 5 without disassembly.

[0031] like Figures 1 to 5 As shown, the cleaning structure 7 includes a second drive rod 8, and the first drive rod 2 is a cylinder that matches the second drive rod 8. The second drive rod 8 can slide up and down inside the first drive rod 2. A cleaning plate 9 that matches the filter 6 is fixedly connected to the second drive rod 8, and the cleaning plate 9 is located in the through hole 501. A plurality of cleaning brushes 11 are fixedly connected to the side wall of the cleaning plate 9. In the process of sliding the second drive rod 8 up and down, the cleaning plate 9 can be slid up and down with it, and the cleaning brushes 11 come into contact with the filter 6, which can dredge the sieve holes of the filter 6 and scrape off impurities on the filter 6.

[0032] like Figures 1 to 5 As shown, a plurality of crushing teeth 10 are fixedly connected to the bottom wall of the cleaning plate 9. By rotating the second driving rod 8, the crushing teeth 10 can be rotated in the through hole 501, and the impurities in the through hole 501 can be crushed, so that the impurities in the through hole 501 are smaller than the size of the sieve holes of the filter screen 6, so that the impurities can pass through the filter screen 6 to achieve the cleaning of the impurities.

[0033] like Figures 1 to 5 As shown, a receiving bin 502 is provided on the valve disc 5 . The receiving bin 502 is located on the upper end surface of the through hole 501 and matches the cleaning plate 9 . The cleaning plate 9 can be completely received in the receiving bin 502 .

[0034] like Figures 1 to 5 As shown, a second sealing ring 13 that matches the cleaning plate 9 is fixedly connected to the expanded portion 3. The second sealing ring 13 is fixedly connected to the bottom wall of the first drive rod 2 and contacts the top wall of the cleaning plate 9 to reduce fluid leakage through the gap between the first drive rod 2 and the second drive rod 8. To further strengthen the seal between the first drive rod 2 and the second drive rod 8, a first sealing ring 12 is fixedly connected to the inner wall of the first drive rod 2, and the first sealing ring 12 is close to the cleaning plate 9 and contacts the outer wall of the second drive rod 8.

[0035] like Figures 1 to 4As shown, the first drive rod 2 is fixedly connected to an expansion portion 3 having a hollow cavity 301. The second drive rod 8 is fixedly connected to a second handle 801 that matches the hollow cavity 301. The outer wall of the second handle 801 is fixedly connected to a third sealing ring 14 that matches the inner wall of the hollow cavity 301. The upper end of the second handle 801 is fixedly connected to a fourth sealing ring 15 that matches the inner top wall of the hollow cavity 301. Both the third sealing ring 14 and the fourth sealing ring 15 provide a seal to minimize fluid leakage from the gap between the second drive rod 8 and the first drive rod 2.

[0036] like Figures 1 to 6 As shown, a spring seat 16 is installed between the second handle 801 and the first handle 4. The spring seat 16 applies a force to the first handle 4 and the second handle 801 to move away from each other. That is, after pressing the second handle 801 downward, the spring seat 16 can restore the second handle 801, thus avoiding the situation where the person needs to press the second handle 801 downward and then lift it up.

[0037] like Figure 6 As shown, the spring seat 16 includes two mounting seats 17, which are sleeved on the second driving rod 8 and located between the second handle 801 and the first handle 4. A spring 18 is fixedly connected between the two mounting seats 17, and both ends of the spring 18 are fixedly connected to the mounting seats 17 respectively.

[0038] During use, the valve core is first installed on the valve seat and fixed to the valve seat with bolts to ensure a watertight seal between the valve core and the valve seat. When the valve core is open, fluid passes through the through hole 501 and impurities are filtered by the filter 6. If the fluid flow rate is low, it is determined that there are too many impurities in the valve disc 5, and the impurities in the valve disc 5 and on the filter 6 need to be treated using the cleaning mechanism 7.

[0039] When using the cleaning mechanism 7, the second handle 801 can be pressed downward. The second handle 801 pushes the second drive rod 8 and the cleaning plate 9 downward, and the cleaning brush 11 comes into contact with the filter 6. The friction between the cleaning brush 11 and the filter 6 can clean the impurities on the filter 6. If the impurities need to be crushed, the second handle 801 is rotated. The second handle 801 rotates the second drive rod 8 and the cleaning plate 9. The crushing teeth 10 crush the impurities during the rotation process, so that the impurities are of a particle size that can pass through the filter 6 and be discharged from the valve core.

[0040] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0041] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A valve core, characterized in that: include: a valve cover, wherein a first drive rod is rotatably connected to the valve cover, the first drive rod passes through the valve cover, the lower end of the first drive rod is fixedly connected to the valve disc, and the end of the first drive rod away from the valve disc is fixedly connected to the first handle; A through hole is formed on the valve disc, and a filter screen matching the through hole is fixedly connected to the valve disc; A cleaning structure for cleaning the filter is installed on the first driving rod; The first driving rod is cylindrical, the cleaning structure includes a cleaning plate, a second driving rod matching the cleaning plate is mounted on the first driving rod, and one end of the second driving rod passes through the first driving rod and is fixedly connected to the cleaning plate; The upper end surface of the through hole is provided with a storage bin matching the cleaning plate; A plurality of crushing teeth are fixedly connected to the lower end surface of the cleaning plate, and a plurality of cleaning brushes are fixedly connected to the side wall of the cleaning plate.

2. A valve core according to claim 1, characterized in that: An expansion portion is fixedly connected to the first driving rod, a second handle matching the expansion portion is fixedly connected to the second driving rod, a third sealing ring matching the inner wall of the expansion portion is fixedly connected to the side wall of the second handle, and a fourth sealing ring is fixedly connected to the inner top wall of the expansion portion.

3. A valve core according to claim 2, characterized in that: The bottom wall of the first driving rod is fixedly connected with a second sealing ring, and the inner wall of the first driving rod close to the cleaning plate is fixedly connected with a first sealing ring.

4. A valve core according to claim 3, characterized in that: One end of the second driving rod away from the valve disc is fixedly connected to a second handle.

5. A valve core according to claim 4, characterized in that: A spring seat is installed between the first handle and the second handle.

6. The valve core according to claim 5, characterized in that: The spring seat includes two mounting seats, a spring is installed between the two mounting seats, and two ends of the spring are fixedly connected to the two mounting seats respectively.

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