Thermoplastic manual angle seat valve

Abstract

The utility model relates to the technical field of angle seat valves, and discloses a thermoplastic manual angle seat valve which comprises a valve seat body, union covers are connected to the two sides of the valve seat body through threads, connecting pipes abut against the interiors of the union covers, and a fixing cover is connected to the top end of the valve seat body through threads. A fixed round rod is slidably connected to the interior of the valve seat body, the fixed cover is clamped to the upper portion of the fixed round rod, a valve rod is connected to the interior of the fixed round rod in a threaded mode, a rotating handle is fixedly connected to the top end of the valve rod, and a valve element is installed at the bottom end of the valve rod. Compared with some angle seat valves which may have the problem of poor sealing, the thermoplastic manual angle seat valve structurally pays more attention to tight matching of the valve core and the valve seat main body, and ensures that fluid is difficult to break through a sealing surface to generate leakage even in a high-pressure environment when the valve is in a closed state; and the sealing performance and the stability of the device in use are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of angle seat valves, in particular to a thermoplastic manual angle seat valve. Background Art

[0002] Angle seat valve is a right-angle valve, mainly composed of valve body, valve seat, valve core, valve stem, actuator (such as pneumatic actuator or manual actuator) and other components. Its name comes from the fact that its valve body shape is usually right-angled. This structure makes it easy to change the direction of fluid flow in the pipeline system.

[0003] Under high-pressure environments, it may be difficult for the valve core and valve seat of some existing angle seat valves to achieve a completely tight and stable fit. As the pressure increases, the sealing surface may experience slight deformation or displacement, resulting in a decrease in sealing performance and fluid leakage. For example, in high-pressure liquid transportation pipelines in the petrochemical industry, the pressure fluctuates greatly, and some angle seat valves may not be able to maintain a good seal continuously, causing chemical leakage, which not only brings economic losses but may also cause safety and environmental problems. Utility Model Content

[0004] The technical problem to be solved by the present invention is that the existing technology has the disadvantage of poor sealing effect under high pressure environment. For this reason, we propose a thermoplastic manual angle seat valve.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a thermoplastic manual angle seat valve, comprising a valve seat body, both sides of the valve seat body are connected with a union cover by threads, the interior of the union cover is abutted with a connecting pipe, the top end of the valve seat body is threadedly connected with a fixed cover, the interior of the valve seat body is slidably connected with a fixed round rod, the fixed cover is clamped on the upper part of the fixed round rod, the interior of the fixed round rod is threadedly connected with a valve stem, the top end of the valve stem is fixedly connected with a rotating handle, and the bottom end of the valve stem is equipped with a valve core.

[0006] Preferably, the bottom end of the fixed round rod is clamped with a connecting column through a first sealing ring, and a first sealing groove is provided on the surface of the fixed round rod, and the first sealing ring is clamped in the first sealing groove.

[0007] Preferably, sealing grooves are provided on both sides of the valve seat body, and sealing rings are installed inside the sealing grooves, and the sealing rings are in contact with the connecting pipe.

[0008] Preferably, a slot is provided on the surface of the valve core, a buckle is clamped inside the slot, and the buckle is clamped to the end of the valve stem.

[0009] Preferably, the size of the card slot is adapted to that of the buckle.

[0010] Preferably, the main body material of the valve seat body is plastic.

[0011] The technical effects and advantages of this utility model are:

[0012] In the utility model, when the staff needs to use the device, the valve stem is moved to drive the valve core to move up and down in the valve seat body. When the valve core is completely close to the valve seat body, the valve is in a closed state and the fluid cannot pass through. When the valve core moves upward and leaves the valve seat body, the valve opens to allow flow to pass. Compared with the possible poor sealing problem of some angle seat valves, this design pays more attention to the close fit between the valve core and the valve seat body in structure, ensuring that when the valve is closed, even in the face of a high-pressure environment, it is difficult for the fluid to break through the sealing surface and leak, thereby effectively improving the sealing and stability of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the manual angle seat valve of the utility model;

[0014] Figure 2 This is a schematic diagram of the disassembled structure of the manual angle seat valve of the utility model;

[0015] Figure 3 This is a schematic cross-sectional view of the internal structure of the valve seat of the present invention;

[0016] Figure 4 This is a schematic diagram of the valve stem sealing structure of the present utility model;

[0017] Figure 5 This is a schematic diagram of the valve core replacement structure of the present utility model.

[0018] Legend: 1. Valve seat body; 2. Union cover; 3. Connecting pipe; 4. Fixed cover; 5. Fixed round rod; 6. Valve stem; 7. Turning handle; 8. Connecting column; 9. Valve core; 10. First sealing ring; 11. First sealing groove; 12. Second sealing ring; 13. Second sealing groove; 14. Slot; 15. Buckle. DETAILED DESCRIPTION

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.

[0020] Reference Figure 1 and Figure 2As shown, the utility model provides a technical solution: a thermoplastic manual angle seat valve, including a valve seat body 1, both sides of the valve seat body 1 are connected to the order cover 2 by thread, the inner part of the order cover 2 abuts against the connecting pipe 3, the top of the valve seat body 1 is threadedly connected to the fixed cover 4, the inner part of the valve seat body 1 is slidably connected to the fixed round rod 5, the fixed cover 4 is clamped on the upper part of the fixed round rod 5, the inner part of the fixed round rod 5 is threadedly connected to the valve stem 6, the top of the valve stem 6 is fixedly connected to the rotating handle 7, and the bottom end of the valve stem 6 is installed with a valve core 9. When the staff needs to use the device, The movement of the valve stem 6 drives the valve core 9 to move up and down in the valve seat body 1. When the valve core 9 is completely close to the valve seat body 1, the valve is in a closed state and the fluid cannot pass through. When the valve core 9 moves upward and leaves the valve seat body 1, the valve opens and allows flow to pass. Compared with the possible poor sealing problem of some angle seat valves, this design pays more attention to the close fit between the valve core 9 and the valve seat body 1 in structure, ensuring that when the valve is closed, even in the face of high-pressure environment, it is difficult for the fluid to break through the sealing surface and leak, thereby effectively improving the sealing and stability of the device during use.

[0021] Reference Figure 4 As shown, in this embodiment: the bottom end of the fixed round rod 5 is clamped with the connecting column 8 through the first sealing ring 10, and the surface of the fixed round rod 5 is provided with a first sealing groove 11, and the first sealing ring 10 is clamped in the first sealing groove 11. Through the arrangement of the first sealing ring 10 and the first sealing groove 11, the valve stem 6 and the valve core 9 can control the valve in the process. The water overflowing from the valve will not overflow from the connection between the fixed round rod 5 and the fixed cover 4, thereby preventing the internal threads of the device from being damaged by the erosion of the water flow, and effectively improving the service life of the internal components of the device.

[0022] Reference Figure 3 As shown, in this embodiment: a second sealing groove 13 is opened on both sides of the valve seat body 1, and a second sealing ring 12 is installed inside the second sealing groove 13. The second sealing ring 12 is in contact with the connecting pipe 3. Through the arrangement of the second sealing ring 12 and the second sealing groove 13, when the connecting pipe 3 is connected to the external water pipe, the gap between the valve seat body 1 and the connecting pipe 3 will not cause water overflow, thereby ensuring the sealing of the connecting pipe 3 and the valve seat body 1 during use.

[0023] Reference Figure 5As shown, in this embodiment: a slot 14 is provided on the surface of the valve core 9, and a buckle 15 is clamped inside the slot 14. The buckle 15 is clamped with the end of the valve stem 6. Through the arrangement of the slot 14 and the buckle 15, when the valve core 9 is damaged and needs to be replaced, the two ends of the buckle 15 are pressed to release the clamping of the valve stem 6, and then the buckle 15 is continued to be pressed to release the limit from the slot 14. At this time, the valve core 9 is removed for replacement. After the replacement is completed, the buckle 15 continues to slide into the slot 14, and then the valve stem 6 is clamped in, thereby achieving rapid replacement of the valve core 9, which can effectively improve the maintenance and use efficiency of the device.

[0024] Reference Figure 5 As shown, in this embodiment: the sizes of the slot 14 and the buckle 15 are adapted to each other. Through the adapted setting, the slot 14 and the buckle 15 will not shake or fall off when they are connected, thereby making the valve core 9 more stable during use and will not fall off due to the impact of water flow.

[0025] Reference Figure 1 As shown, in this embodiment: the main material of the valve seat body 1 is plastic. By setting all components of the device to be plastic, the device can be made more corrosion-resistant during use, thereby effectively improving the service life of each component of the device and making it less prone to damage.

[0026] Working principle: When the staff needs to use the device, the valve stem 6 is moved to drive the valve core 9 to move up and down in the valve seat body 1. When the valve core 9 is completely close to the valve seat body 1, the valve is in a closed state and the fluid cannot pass through. When the valve core 9 moves upward and leaves the valve seat body 1, the valve opens and allows flow to pass. Compared with the possible poor sealing problem of some angle seat valves, this design pays more attention to the close fit between the valve core 9 and the valve seat body 1 in structure, ensuring that when the valve is closed, even in the face of a high-pressure environment, it is difficult for the fluid to break through the sealing surface and leak, thereby effectively improving the sealing and stability of the device during use. Through the arrangement of the first sealing ring 10 and the first sealing groove 11, the valve stem 6 and the valve core 9 can control the valve. The water overflowing from the valve will not overflow from the connection between the fixed round rod 5 and the fixed cover 4, thereby preventing the internal threads of the device from being damaged by the erosion of the water flow, which can effectively improve the service life of the internal components of the device. 3, when the connecting pipe 3 is connected to the external water pipe, the gap between the valve seat body 1 and the connecting pipe 3 will not cause water overflow, thereby ensuring the sealing of the connecting pipe 3 and the valve seat body 1 when in use. Through the arrangement of the card slot 14 and the buckle 15, when the valve core 9 is damaged and needs to be replaced, press the two ends of the buckle 15 to release the valve stem 6, and then continue to press the buckle 15 to release the limit from the card slot 14. At this time, the valve core 9 is removed for replacement. After the replacement is completed, the buckle 15 is continued to slide into The valve stem 6 is then inserted into the slot 14, thereby achieving quick replacement of the valve core 9, which can effectively improve the maintenance and use efficiency of the device. Through the corresponding setting, the slot 14 and the buckle 15 will not shake or fall off when they are connected, thereby making the valve core 9 more stable during use and will not fall off due to the impact of water flow. By making all parts of the device into plastic material, the device can be made more corrosion-resistant during use, thereby effectively improving the service life of each part of the device and not prone to damage.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A thermoplastic manual angle seat valve, comprising a valve seat body (1), characterized in that: The two sides of the valve seat body (1) are connected to the command cover (2) by threads, the inner part of the command cover (2) is abutted against the connecting pipe (3), the top end of the valve seat body (1) is connected to the fixed cover (4) by threads, the inner part of the valve seat body (1) is connected to the fixed round rod (5) by sliding, the fixed cover (4) is clamped on the upper part of the fixed round rod (5), the inner part of the fixed round rod (5) is connected to the valve stem (6) by threads, the top end of the valve stem (6) is fixedly connected to the rotating handle (7), and the bottom end of the valve stem (6) is equipped with a valve core (9).

2. The thermoplastic manual angle seat valve according to claim 1, characterized in that: The bottom end of the fixed round rod (5) is clamped with a connecting column (8) via a first sealing ring (10); a first sealing groove (11) is provided on the surface of the fixed round rod (5); and the first sealing ring (10) is clamped in the first sealing groove (11).

3. The thermoplastic manual angle seat valve according to claim 1, characterized in that: Second sealing grooves (13) are provided on both sides of the valve seat body (1), a second sealing ring (12) is installed inside the second sealing groove (13), and the second sealing ring (12) is in contact with the connecting pipe (3).

4. The thermoplastic manual angle seat valve according to claim 1, characterized in that: A clamping groove (14) is provided on the surface of the valve core (9), a clamping buckle (15) is clamped inside the clamping groove (14), and the clamping buckle (15) is clamped to the end of the valve stem (6).

5. The thermoplastic manual angle seat valve according to claim 4, characterized in that: The sizes of the clamping slot (14) and the clamping buckle (15) are adapted to each other.

6. The thermoplastic manual angle seat valve according to claim 1, characterized in that: The main body material of the valve seat body (1) is plastic.

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