Flow-adjustable precision cast steel valve

Abstract

The precise cast steel valve comprises a cast steel valve shell, a water inlet connector installed on one side of the cast steel valve shell and a water outlet connector installed on the other side of the cast steel valve shell, a valve rod capable of being precisely adjusted is installed at the top of the cast steel valve shell, and a valve plate is installed at the position, corresponding to the valve rod, in the cast steel valve shell. The top of the valve plate is fixedly connected with the bottom of the valve rod, a valve seat is fixedly connected to the position, corresponding to the valve rod, of the top of the cast steel valve shell, and an adjusting assembly used for accurately adjusting the valve rod is installed on the position, corresponding to the valve rod, of the valve seat. The bottom of the cast steel valve shell can be opened conveniently, impurities in the cast steel valve shell can be cleaned conveniently, normal use of the cast steel valve shell can be guaranteed, after the valve plate is adjusted through the valve rod, accurate control over fluid can be improved through fine adjustment of the valve rod, and the service life of the valve is prolonged. And therefore, the practicability of the cast steel valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a precision cast steel valve with adjustable flow rate. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters (temperature, pressure, and flow rate) of the transported medium. Based on their function, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid transport systems, possessing functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, or overflow pressure relief. When discharging fluids containing impurities, these impurities can easily remain on the inner walls of the pipeline and valve castings. Valves cannot be easily replaced in a short time, and after prolonged use, impurities remaining on the valve's inner wall can affect its normal operation.

[0003] For example, Chinese Patent Publication No. CN217003173U discloses a cast steel valve, including a valve body with a top opening and two side openings, a drive mechanism, and a sealing mechanism; the drive mechanism is disposed on the top of the valve body, and the sealing mechanism is disposed on both sides of the valve body; the drive mechanism includes an upper cover body, which is adapted to the opening at the top of the valve body, and a sealing ring is fixedly connected to the bottom of the upper cover body and the top of the valve body.

[0004] Although the above technical solutions have solved the corresponding technical problems, they still have the following drawbacks:

[0005] The above technical solution is not convenient for precise valve adjustment, and therefore has limitations in its use. Utility Model Content

[0006] The purpose of this invention is to provide a precision cast steel valve with adjustable flow rate. This valve not only facilitates opening the bottom of the cast steel valve body to clean impurities inside, thus ensuring its normal operation, but also allows for fine-tuning of the valve stem after adjusting the valve plate, thereby improving the precision of fluid control and enhancing the practicality of the cast steel valve.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A precision cast steel valve with adjustable flow rate, comprising:

[0009] The valve comprises a cast steel valve body, an inlet connector installed on one side of the cast steel valve body, and an outlet connector installed on the other side of the cast steel valve body. A precisely adjustable valve stem is installed on the top of the cast steel valve body. A valve plate is installed inside the cast steel valve body at the position corresponding to the valve stem, and the top of the valve plate is fixedly connected to the bottom of the valve stem. A valve seat is fixedly connected to the top of the cast steel valve body at the position corresponding to the valve stem. An adjustment component for precisely adjusting the valve stem is installed on the valve seat at the position corresponding to the valve stem.

[0010] The aforementioned precision cast steel valve with adjustable flow rate includes an adjusting assembly comprising a mounting housing fixedly connected to the valve seat, a rotating rod fixedly connected to the side of the mounting housing, a driving bevel gear fixedly connected to the end of the rotating rod, and a driven bevel gear matching the driving bevel gear mounted on the valve stem at a position corresponding to the driving bevel gear.

[0011] The aforementioned precision cast steel valve with adjustable flow rate includes a removable maintenance cover plate installed at the bottom of the cast steel valve body, and a mounting seat matching the maintenance cover plate installed at the bottom of the cast steel valve body corresponding to the position of the maintenance cover plate.

[0012] In the aforementioned adjustable flow precision cast steel valve, the inner wall of the maintenance cover is provided with an internal thread, and the outer side of the mounting base is provided with an external thread that meshes with the internal thread.

[0013] The aforementioned precision cast steel valve with adjustable flow rate has a sealing ring fitted on the surface of the valve plate that matches the cast steel valve body.

[0014] In the aforementioned precision cast steel valve with adjustable flow rate, a sealing sleeve is provided inside the valve seat at a position corresponding to the valve stem.

[0015] In the aforementioned adjustable flow precision cast steel valve, a rubber ring is provided at the bottom of the mounting base and at the position corresponding to the maintenance cover plate.

[0016] This utility model has at least the following beneficial effects:

[0017] The adjustable flow precision cast steel valve provided by this utility model not only facilitates the opening of the bottom of the cast steel valve body, thereby making it easy to clean impurities inside the cast steel valve body and ensuring the normal use of the cast steel valve body, but also improves the precision control of the fluid by fine-tuning the valve stem after the valve plate is adjusted via the valve stem, thus enhancing the practicality of the cast steel valve of this utility model. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the precision cast steel valve with adjustable flow rate according to this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the precision cast steel valve with adjustable flow rate according to this utility model.

[0021] Figure 3 This utility model Figure 2 A magnified structural diagram of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the regulating component in the adjustable flow precision cast steel valve of this utility model;

[0023] Figure 5 This utility model Figure 2 A magnified structural diagram of a portion of point B in the middle.

[0024] Explanation of icon numbers:

[0025] 1. Cast steel valve body; 2. Inlet connector; 3. Outlet connector; 4. Valve stem; 5. Maintenance cover plate;

[0026] 401, Valve plate; 4011, Sealing ring;

[0027] 402, valve seat; 4021, sealing sleeve;

[0028] 403. Adjustment components;

[0029] 4031. Mounting housing; 4032. Rotating rod; 4033. Driving bevel gear; 4034. Driven bevel gear;

[0030] 501. Mounting bracket;

[0031] 502, internal thread; 5021, external thread; 503, rubber ring. Detailed Implementation

[0032] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0033] Please refer to Figures 1 to 5As shown, this embodiment provides a precision cast steel valve with adjustable flow rate, including: a cast steel valve body 1, an inlet connector 2 installed on one side of the cast steel valve body 1, and an outlet connector 3 installed on the other side of the cast steel valve body 1. A precisely adjustable valve stem 4 is installed on the top of the cast steel valve body 1. A valve plate 401 is installed inside the cast steel valve body 1 at the position corresponding to the valve stem 4, and the top of the valve plate 401 is fixedly connected to the bottom of the valve stem 4. A valve seat 402 is fixedly connected to the top of the cast steel valve body 1 at the position corresponding to the valve stem 4. An adjustment component 403 for precise adjustment of the valve stem 4 is installed on the valve seat 402 at the position corresponding to the valve stem 4.

[0034] By adopting the above technical solution, it is not only convenient to open the bottom of the cast steel valve body 1, thereby facilitating the cleaning of impurities inside the cast steel valve body 1, thus ensuring the normal use of the cast steel valve body 1, but also, after the valve plate 401 is adjusted by the valve stem 4, the precise control of the fluid can be improved by fine-tuning the valve stem 4, thereby improving the practicality of the cast steel valve of this utility model.

[0035] Please refer to Figures 1 to 5 As shown, the adjusting assembly 403 includes a mounting shell 4031 fixedly connected to the valve seat 402. A rotating rod 4032 is fixedly connected to the side of the mounting shell 4031. A driving bevel gear 4033 is fixedly connected to the end of the rotating rod 4032. A driven bevel gear 4034 matching the driving bevel gear 4033 is installed on the valve stem 4 at a position corresponding to the driving bevel gear 4033. By rotating the driving bevel gear 4033 through the rotating rod 4032, and under the meshing action of the teeth of the driven bevel gear 4034, fine adjustment of the valve stem 4 can be achieved.

[0036] Please refer to Figures 1 to 5 As shown, a removable maintenance cover plate 5 is installed at the bottom of the cast steel valve body 1. A mounting seat 501 matching the maintenance cover plate 5 is installed at the bottom of the cast steel valve body 1 and at the position corresponding to the maintenance cover plate 5. An internal thread 502 is provided on the inner wall of the maintenance cover plate 5, and an external thread 5021 that meshes with the internal thread 502 is provided on the outside of the mounting seat 501. Through the thread action of the internal thread 502 and the external thread 5021, the maintenance cover plate 5 can be easily disassembled and assembled, thus facilitating the cleaning of impurities inside the cast steel valve body 1.

[0037] Please refer to Figures 1 to 5 As shown, a sealing ring 4011 matching the cast steel valve body 1 is fitted on the surface of the valve plate 401; by adopting the above technical solution, the sealing performance of the connection between the valve plate 401 and the inner wall of the cast steel valve body 1 is increased by setting the sealing ring 4011.

[0038] Please refer to Figures 1 to 5As shown, a sealing sleeve 4021 is provided inside the valve seat 402 and at the position corresponding to the valve stem 4; by adopting the above technical solution, the sealing performance of the valve stem 4 is increased when it rotates by setting the sealing sleeve 4021.

[0039] Please refer to Figures 1 to 5 As shown, a rubber ring 503 is provided at the bottom of the mounting base 501 and at the position corresponding to the maintenance cover plate 5; by adopting the above technical solution, the sealing performance of the maintenance cover plate 5 installed on the mounting base 501 is increased by setting the rubber ring 503.

[0040] The working principle of this utility model is as follows: not only by loosening the maintenance cover plate 5, which allows for convenient disassembly of the maintenance cover plate 5 under the action of the internal thread 502 and the external thread 5021, thus facilitating the cleaning of impurities inside the cast steel valve body 1 and ensuring the normal use of the cast steel valve body 1, but also by rotating the valve plate 401 through the valve stem 4 after adjustment, the driving bevel gear 4033 can be rotated by the rotating rod 4032, and the meshing action of the driven bevel gear 4034 can achieve fine adjustment of the valve stem 4, thereby improving the precise control of the fluid and thus improving the practicality of the cast steel valve of this utility model.

[0041] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A precision cast steel valve with adjustable flow rate, comprising a cast steel valve body (1), an inlet connector (2) installed on one side of the cast steel valve body (1), and an outlet connector (3) installed on the other side of the cast steel valve body (1), characterized in that, The top of the cast steel valve body (1) is equipped with a precisely adjustable valve stem (4). Inside the cast steel valve body (1) and at the position corresponding to the valve stem (4), a valve plate (401) is installed, and the top of the valve plate (401) is fixedly connected to the bottom of the valve stem (4). A valve seat (402) is fixedly connected to the top of the cast steel valve body (1) and at the position corresponding to the valve stem (4). An adjustment component (403) for precisely adjusting the valve stem (4) is installed on the valve seat (402) at the position corresponding to the valve stem (4).

2. The precision cast steel valve with adjustable flow rate according to claim 1, characterized in that: The adjusting assembly (403) includes a mounting shell (4031) fixedly connected to the valve seat (402), a rotating rod (4032) fixedly connected to the side of the mounting shell (4031), a driving bevel gear (4033) fixedly connected to the end of the rotating rod (4032), and a driven bevel gear (4034) matching the driving bevel gear (4033) installed on the valve stem (4) at a position corresponding to the driving bevel gear (4033).

3. The precision cast steel valve with adjustable flow rate according to claim 2, characterized in that: The bottom of the cast steel valve body (1) is equipped with a removable maintenance cover plate (5), and a mounting seat (501) matching the maintenance cover plate (5) is installed at the bottom of the cast steel valve body (1) and at the position corresponding to the maintenance cover plate (5).

4. The precision cast steel valve with adjustable flow rate according to claim 3, characterized in that: The inner wall of the maintenance cover (5) is provided with an internal thread (502), and the outside of the mounting base (501) is provided with an external thread (5021) that meshes with the internal thread (502).

5. The precision cast steel valve with adjustable flow rate according to claim 4, characterized in that: The surface of the valve plate (401) is fitted with a sealing ring (4011) that matches the cast steel valve body (1).

6. The precision cast steel valve with adjustable flow rate according to claim 5, characterized in that: A sealing sleeve (4021) is provided inside the valve seat (402) and at the position corresponding to the valve stem (4).

7. A precision cast steel valve with adjustable flow rate according to claim 6, characterized in that: A rubber ring (503) is provided at the bottom of the mounting base (501) and at the position corresponding to the maintenance cover plate (5).

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