Diaphragm valve capable of adjusting opening degree

Abstract

The utility model provides a diaphragm valve capable of adjusting the opening degree, which relates to the technical field of diaphragm valves and comprises a shell, a feed port and a discharge port are fixedly mounted on the side face of the shell, a sliding rod is slidably connected into the shell, a sealing block is fixedly mounted at the bottom end of the sliding rod, and a sealing ring is fixedly mounted at the bottom end of the sealing block. According to the utility model, through the cooperation of the sliding rod and the sealing block, the adjustment of the opening degree of the valve is more accurate, the flexibility of fluid control is effectively enhanced, meanwhile, the combination of the scale rod and the pointer facilitates the visual reading of the opening degree state of the valve, and the operation is convenient. And the controllability and the accuracy of the operation are obviously improved. Due to the design of the tension spring, the stability of the switch is guaranteed, the valve is prevented from loosening or shifting in long-time use, operation is convenient and fast, the valve is more durable, and the opening degree can be adjusted and controlled more rapidly and conveniently.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm valve technology, and in particular to a diaphragm valve capable of adjusting the opening degree. Background Technology

[0002] Announcement No. CN220816631U discloses a diaphragm valve. The diaphragm valve comprises a valve body located below the diaphragm valve body; a valve cover fixed above the valve body; a valve disc located between the valve body and the valve cover; a channel on a predetermined axis of the valve body; a valve stem located above the channel; and a diaphragm located below the valve disc. The diaphragm acts as an opening and closing element, sealing the channel, cutting off the fluid, and separating the inner cavity of the valve body from the inner cavity of the valve cover. Simultaneously, the diaphragm seals between the valve body and the valve body to prevent liquid or gas leakage. It offers advantages such as good sealing and throttling, solving the technical problem in existing diaphragm valves where poor sealing leads to fluid entering the inner cavity of the valve cover. In practical applications, traditional diaphragm valves often lack precision in opening adjustment, making it difficult to achieve ideal fluid flow control, especially in applications requiring fine adjustment, where errors are prone to occur. Furthermore, traditional methods lack scale displays, making it difficult for operators to intuitively understand the valve's opening status, increasing operational difficulty and uncertainty. Due to the lack of a stable tension spring design, the valve is prone to loosening after prolonged use, affecting its sealing effect, necessitating improvement. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background section.

[0004] This utility model adopts the following technical solution: a diaphragm valve with adjustable opening, including a housing, an inlet fixedly installed on the side of the housing, an outlet fixedly installed on the side of the housing, a sliding rod slidably connected inside the housing, a sealing block fixedly installed at the bottom end of the sliding rod, a sealing gasket fixedly installed on the lower surface of the sealing block, a handle fixedly installed at the top end of the sliding rod, a scale rod fixedly installed on the surface of the sliding rod, a pointer fixedly installed on the upper surface of the housing, a connecting rod slidably connected inside the housing, a pull head fixedly installed at one end of the connecting rod, and a tension spring fixedly installed on the side of the pull head.

[0005] Preferably, the sealing block is slidably connected to the outer casing, and the corners of the sealing gasket are fixedly connected to the outer casing. Here, the sealing block and sealing gasket allow for overall downward sealing.

[0006] Preferably, the pointer is positioned on the side of the scale rod, which is slidably connected to the housing. Here, the pointer and scale rod allow for convenient and precise observation of the position of the sliding rod's rise and fall.

[0007] Preferably, the connecting rod and the sliding rod are slidably connected, and one end of the tension spring is fixedly connected to the outer casing. Here, the tension spring allows the connecting rod to automatically slide from the inside of the outer casing to the inside of the sliding rod, so that the sliding rod is locked and limited in a suitable position.

[0008] Preferably, a mounting block is fixedly installed on the surface of the feed inlet, a filter plate is fixedly installed inside the mounting block, a rotating block is rotatably connected to the lower surface of the mounting block, a baffle is provided on the lower surface of the mounting block, and a fixing block is fixedly installed on the side of the baffle. Here, the filter plate can filter the liquid entering the interior, while the fixing block and rotating block allow the baffle to rotate and open smoothly, thereby quickly cleaning the impurities inside.

[0009] Preferably, the rotating block is fixedly connected to the cover, and the fixed block is threadedly connected to the mounting block with bolts. Here, the cover can be rotated open by the rotating block, and the cover is closed on the lower surface of the mounting block by the fixed block and bolts.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, the cooperation of the sliding rod and the sealing block makes the valve opening adjustment more precise, effectively enhancing the flexibility of fluid control. Simultaneously, the combination of the scale rod and the pointer facilitates intuitive reading of the valve opening status, significantly improving the controllability and accuracy of operation. The tension spring design ensures the stability of the switch, preventing the valve from loosening or shifting during prolonged use. It is convenient to operate and more durable, allowing for faster and easier adjustment of the opening and closing degree.

[0012] 2. In this utility model, the filter plate structure installed at the feed inlet, consisting of a filter plate, mounting block, rotating block, baffle cover, and fixing block, can effectively filter impurities, extend the service life of the valve, ensure the cleanliness of the fluid channel, and prevent the inside from being blocked by solid debris. The baffle cover makes it easier to clean the filtered impurities, thus improving the overall service life. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of a diaphragm valve capable of adjusting the opening degree is provided for this utility model;

[0014] Figure 2 An exploded view of a diaphragm valve with adjustable opening degree is provided for this utility model;

[0015] Figure 3 A side view of a diaphragm valve with adjustable opening degree is provided for this utility model;

[0016] Figure 4This invention proposes a diaphragm valve with adjustable opening degree. Figure 2 Enlarged view of point A in the middle.

[0017] Legend:

[0018] 1. Outer shell; 2. Inlet; 3. Outlet; 4. Sliding rod; 5. Sealing block; 6. Sealing gasket; 7. Handle; 8. Scale rod; 9. Pointer; 10. Connecting rod; 11. Pull head; 12. Tension spring; 13. Filter plate; 14. Mounting block; 15. Rotating block; 16. Baffle cover; 17. Fixing block. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1

[0022] Please see Figure 1-4This utility model provides a technical solution: a diaphragm valve with adjustable opening, including a housing 1, an inlet 2 and an outlet 3 fixedly installed on the side of the housing 1, a sliding rod 4 slidably connected inside the housing 1, a sealing block 5 fixedly installed at the bottom of the sliding rod 4, a sealing gasket 6 fixedly installed on the lower surface of the sealing block 5, a handle 7 fixedly installed at the top of the sliding rod 4, a scale rod 8 fixedly installed on the surface of the sliding rod 4, a pointer 9 fixedly installed on the upper surface of the housing 1, a connecting rod 10 slidably connected inside the housing 1, a pull head 11 fixedly installed at one end of the connecting rod 10, and a tension spring 12 fixedly installed on the side of the pull head 11. This diaphragm valve achieves orderly fluid entry and exit by setting the inlet 2 and outlet 3. The combined design of the sliding rod 4, sealing block 5, and sealing gasket 6 achieves effective fluid sealing, and the valve opening is adjusted by the handle 7. The design of the scale rod 8 and pointer 9 makes the opening status clearly visible, making operation more intuitive. The cooperation of connecting rod 10, pull head 11, and tension spring 12 ensures the stability of the adjustment process and avoids loosening of parts due to long-term use. The sealing block 5 is slidably connected to the outer shell 1, and the corner of the sealing gasket 6 is fixedly connected to the outer shell 1. The slidable connection between the sealing block 5 and the outer shell 1 ensures smooth movement of the sealing block 5, facilitating different opening adjustments. Simultaneously, the fixed connection between the corner of the sealing gasket 6 and the outer shell 1 enhances sealing, prevents fluid leakage, and ensures the sealing performance of the equipment. The pointer 9 is located on the side of the scale rod 8, which is slidably connected to the outer shell 1. The pointer 9 is located on the side of the scale rod 8 for easy reading of the adjustment status. The slidable connection between the scale rod 8 and the outer shell 1 makes the opening adjustment smoother, achieving precise adjustment and effectively improving the control accuracy of the diaphragm valve. The connecting rod 10 is slidably connected to the sliding rod 4, and one end of the tension spring 12 is fixedly connected to the outer shell 1. The slidable connection design between the connecting rod 10 and the sliding rod 4 makes their cooperation more stable, ensuring a smooth adjustment process. One end of the tension spring 12 is fixedly connected to the outer casing 1, which increases the reset capability of the sliding rod 4, prevents the opening position from being unstable, and improves the reliability of operation.

[0023] Example 2

[0024] Please see Figure 1-4A mounting block 14 is fixedly installed on the surface of the feed inlet 2. A filter plate 13 is fixedly installed inside the mounting block 14. A rotating block 15 is rotatably connected to the lower surface of the mounting block 14. A baffle 16 is provided on the lower surface of the mounting block 14, and a fixing block 17 is fixedly installed on the side of the baffle 16. The mounting block 14 on the surface of the feed inlet 2 is used to fix the filter plate 13, effectively filtering impurities in the incoming fluid and protecting the internal structure. The design of the rotating block 15 and the baffle 16 simplifies the disassembly and assembly process of the filter plate 13, while improving the overall durability of the diaphragm valve. The rotating block 15 and the baffle 16 are fixedly connected, and the fixing block 17 and the mounting block 14 are threadedly connected by bolts. The fixed connection between the rotating block 15 and the baffle 16 further stabilizes the position of the filter plate 13, preventing displacement during use. The filter plate 13 is fixed by the threaded connection between the fixing block 17 and the mounting block 14, making it more secure during operation and facilitating regular maintenance and cleaning.

[0025] Working principle: First, the feed inlet 2 allows fluid to enter the housing 1. Inside the housing 1, the fluid flow is regulated by the sliding rod 4. The sealing block 5 at the bottom of the sliding rod 4 and the sealing gasket 6 work together to seal or adjust the valve opening. The operator adjusts the position of the sliding rod 4 using the handle 7 at the top. The scale rod 8 and pointer 9 simultaneously display the current opening, making the opening adjustment intuitive and controllable. The movement of the sliding rod 4 drives the connecting rod 10. The pull head 11 at the end of the connecting rod 10 cooperates with the tension spring 12 to ensure the stability of the sliding and prevent loosening due to long-term use. The feed inlet 2 is equipped with a filter plate 13, which is fixed by the mounting block 14 and has a rotating block 15 and a baffle 16 at its bottom. This effectively filters impurities in the fluid to ensure the cleanliness of the channel. The baffle 16 is securely connected by the fixing block 17, achieving efficient filtration and convenient disassembly and maintenance of the filter plate 13.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A diaphragm valve capable of adjusting its opening degree, comprising a housing (1), characterized in that: A feed inlet (2) is fixedly installed on the side of the outer shell (1), a discharge outlet (3) is fixedly installed on the side of the outer shell (1), a sliding rod (4) is slidably connected inside the outer shell (1), a sealing block (5) is fixedly installed at the bottom end of the sliding rod (4), a sealing gasket (6) is fixedly installed on the lower surface of the sealing block (5), a handle (7) is fixedly installed at the top end of the sliding rod (4), a scale rod (8) is fixedly installed on the surface of the sliding rod (4), a pointer (9) is fixedly installed on the upper surface of the outer shell (1), a connecting rod (10) is slidably connected inside the outer shell (1), a pull head (11) is fixedly installed at one end of the connecting rod (10), and a tension spring (12) is fixedly installed on the side of the pull head (11).

2. The diaphragm valve with adjustable opening degree according to claim 1, characterized in that: The sealing block (5) is slidably connected to the outer shell (1), and the corner of the sealing gasket (6) is fixedly connected to the outer shell (1).

3. The diaphragm valve capable of adjusting the opening degree according to claim 1, characterized in that: The pointer (9) is located on the side of the scale rod (8), and the scale rod (8) is slidably connected to the outer casing (1).

4. The diaphragm valve capable of adjusting the opening degree according to claim 1, characterized in that: The connecting rod (10) is slidably connected to the sliding rod (4), and one end of the tension spring (12) is fixedly connected to the outer shell (1).

5. The diaphragm valve capable of adjusting the opening degree according to claim 1, characterized in that: An installation block (14) is fixedly installed on the surface of the feed inlet (2). A filter plate (13) is fixedly installed inside the installation block (14). A rotating block (15) is rotatably connected to the lower surface of the installation block (14). A baffle (16) is provided on the lower surface of the installation block (14). A fixing block (17) is fixedly installed on the side of the baffle (16).

6. The diaphragm valve capable of adjusting the opening degree according to claim 5, characterized in that: The rotating block (15) is fixedly connected to the cover (16), and the fixed block (17) is threadedly connected to the mounting block (14) with bolts.

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