Plastic valve seal

Abstract

The utility model provides a kind of plastic valve sealing device, it is related to plastic valve technical field, and it includes: conveying mechanism, the conveying mechanism includes valve body, the inside of valve body is sleeved with O ring one, the inside of valve body is equipped with the installation groove one that is in accord with O ring one, the inside of valve body is sleeved with plastic spring, the outer surface of one end of plastic spring is sleeved with cylindrical sealing pad, the outer surface of plastic spring is sleeved with O ring two.The utility model, by being provided with conveying mechanism, so that fluid conveying valve body can control whether fluid passes, to further play the purpose of controlling fluid flow, and coil body and moving iron core are arranged, and coil body can generate magnetic force after being energized, whereby coil body can attract moving iron core, so that moving iron core can drive plastic spring and cylindrical sealing pad to move up.

Description

Technical Field

[0001] This utility model relates to the field of plastic valve technology, and in particular to a plastic valve sealing device. Background Technology

[0002] A plastic solenoid valve is a type of solenoid valve made primarily of plastic. It is a basic automation component that uses electromagnetic force to control the on / off state or flow direction of fluids. Belonging to the category of actuators, it is commonly used in various automatic control systems to achieve precise fluid control.

[0003] Existing plastic electromagnetic fluid transfer valves can more quickly release and cut off fluid flow. However, the seal between the valve body and the electromagnetic control component is achieved through a sealing ring. This sealing ring is squeezed and deformed by some components of the electromagnetic control component to achieve the sealing effect. Since the sealing ring is prone to aging and decreased resilience, the seal at the connection between the valve body and the electromagnetic control component is prone to partial failure, resulting in leakage of high-pressure fluid. Therefore, existing plastic electromagnetic fluid transfer valves are inconvenient to use. To address this, we provide a plastic valve sealing device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing plastic electromagnetic fluid delivery valves, such as the insufficient sealing effect between the valve body and the electromagnetic control components, and to provide a plastic valve sealing device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a plastic valve sealing device, comprising: a conveying mechanism, the conveying mechanism including a valve body, an O-ring I being sleeved inside the valve body, an installation groove I that fits with the O-ring I being provided inside the valve body, a plastic spring being sleeved inside the valve body, a columnar sealing gasket being sleeved on the outer surface of one end of the plastic spring, an O-ring II being sleeved on the outer surface of the plastic spring, a moving iron core being sleeved inside the plastic spring, the moving iron core being threadedly connected to the plastic spring, a return spring being sleeved inside the moving iron core, and a pilot sleeve being sleeved on the outer surface of the moving iron core. A pilot base is fitted onto the outer surface of the guide sleeve. Fastening screws are fitted into the pilot base and the interior of the valve body. A pilot cover is fitted onto the outer surface of the pilot base. A coil body is located on the top of the pilot cover. A coil sealing gasket is fitted into the interior of the bottom of the coil body. A coil sealing ring is located in a groove at the top of the coil body. A fastening nut is fitted onto the outer surface of the pilot sleeve. A connecting mechanism is located at one end of the valve body. The connecting mechanism includes an O-ring three, which fits into the interior of the valve body. A filter screen is fitted into the interior of the valve body. A heat fusion joint is located at one end of the valve body. A fixing nut is fitted onto the outer surface of the valve body.

[0006] In a preferred embodiment, the plastic spring is slidably connected to the valve body, the second O-ring is slidably connected to the plastic spring, the plastic spring has a second mounting groove that fits the second O-ring, the pilot sleeve is slidably connected to the moving iron core, and the pilot base is slidably connected to the pilot sleeve.

[0007] In a preferred embodiment, the fastening screw is slidably connected to the pilot base, the fastening screw is threadedly connected to the valve body, the pilot cover is slidably connected to the pilot base, and the pilot cover and the coil body are sleeved on the outer surface of the pilot sleeve.

[0008] In a preferred embodiment, the pilot cover and the coil body are slidably connected to the pilot sleeve, the coil sealing gasket is slidably connected to the coil body, and the fastening nut is threadedly connected to the pilot sleeve.

[0009] In a preferred embodiment, the valve body has an annular groove that fits the O-ring in three phases, the filter screen is slidably connected to the valve body, and the fixing nut is threadedly connected to the valve body.

[0010] In a preferred embodiment, the fixing nut is sleeved on the outer surface of the heat fusion joint, and the fixing nut is slidably connected to the heat fusion joint.

[0011] In a preferred embodiment, the two ends of the return spring are fixedly connected to the inner walls of the moving iron core and the pilot sleeve, respectively.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention, by setting up a conveying mechanism, enables the valve body for fluid conveying to control whether fluid passes through, thereby achieving the purpose of controlling fluid flow. A coil body and a moving iron core are provided; when the coil body is energized, it generates magnetic force, which attracts the moving iron core. This causes the moving iron core to move the plastic spring and the columnar sealing gasket upwards, thus eliminating the flow-blocking effect of the columnar sealing gasket on the valve body, allowing the valve body to convey fluid. A connecting mechanism is also provided, allowing the valve body to be thermally fused to a plastic pipe for conveying fluid. The plastic pipe then conveys the fluid to the valve body, enabling the fluid, under the control of the conveying mechanism, to enter the pipe connected to the other end of the valve body. Attached Figure Description

[0013] Figure 1 This is a disassembled schematic diagram of a plastic valve sealing device provided by this utility model.

[0014] Figure 2 This utility model provides a schematic diagram of the installation of a columnar sealing gasket for a plastic valve sealing device.

[0015] Figure 3 This utility model provides a schematic diagram of the installation of a coil sealing gasket for a plastic valve sealing device.

[0016] Legend: 1. Conveying mechanism; 2. Connecting mechanism; 11. Valve body; 12. O-ring one; 13. Columnar sealing gasket; 14. Plastic spring; 15. O-ring two; 16. Moving iron core; 17. Return spring; 18. Pilot sleeve; 19. Pilot base; 101. Fastening screw; 102. Pilot cover; 103. Coil sealing gasket; 104. Coil body; 105. Coil sealing ring; 106. Fastening nut; 21. O-ring three; 22. Filter screen; 23. Heat fusion connector; 24. Secure the nuts. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1 like Figures 1-3As shown, this utility model provides a technical solution: a plastic valve sealing device, comprising: a conveying mechanism 1, the conveying mechanism 1 including a valve body 11, an O-ring 12 sleeved inside the valve body 11, an installation groove 1 that fits the O-ring 12 inside the valve body 11, a plastic spring 14 sleeved inside the valve body 11, a columnar sealing gasket 13 sleeved on the outer surface of one end of the plastic spring 14, an O-ring 15 sleeved on the outer surface of the plastic spring 14, a moving iron core 16 sleeved inside the plastic spring 14, the moving iron core 16 being threadedly connected to the plastic spring 14, a return spring 17 sleeved inside the moving iron core 16, a pilot sleeve 18 sleeved on the outer surface of the moving iron core 16, a pilot base 19 sleeved on the outer surface of the pilot sleeve 18, a fastening screw 101 sleeved inside the pilot base 19 and the valve body 11, a pilot cover 102 sleeved on the outer surface of the pilot base 19, a coil body 104 provided on the top of the pilot cover 102, the coil body... A coil sealing gasket 103 is fitted inside the bottom of the coil body 104. A coil sealing ring 105 is installed in the groove at the top of the coil body 104. A fastening nut 106 is fitted onto the outer surface of the pilot sleeve 18. The plastic spring 14 is slidably connected to the valve body 11. The second O-ring 15 is slidably connected to the plastic spring 14. The plastic spring 14 has a mounting groove that matches the second O-ring 15. The pilot sleeve 18 is slidably connected to the moving iron core 16. The pilot base 19 is connected to the pilot sleeve. 18. Sliding connection, fastening screw 101 is slidably connected to pilot base 19, fastening screw 101 is threadedly connected to valve body 11, pilot cover 102 is slidably connected to pilot base 19, pilot cover 102 and coil body 104 are sleeved on the outer surface of pilot sleeve 18, pilot cover 102 and coil body 104 are slidably connected to pilot sleeve 18, coil sealing gasket 103 is slidably connected to coil body 104, and fastening nut 106 is threadedly connected to pilot sleeve 18.

[0019] In this embodiment, by setting an O-ring 12, which can be installed into the mounting groove 1 inside the valve body 11, and by being pressed tightly by the end of the pilot sleeve 18 fixedly installed inside the valve body 11, the O-ring 12 can fill the gap between the valve body 11 and the pilot sleeve 18, thus achieving a static seal. An O-ring 2 15 is set, which can be installed into the mounting groove 2 on the plastic spring 14 and driven into the valve body 11. Thus, the O-ring 2 15 can fill the connection between the valve body 11 and the plastic spring 14. Even if the plastic spring 14 can slide within the valve body 11, it can still cooperate with the O-ring 12 to ensure that the fluid inside the valve body 11 does not leak. The design of the plastic spring 14 encasing the moving iron core 16 achieves complete isolation between the moving parts and the fluid through a unique tapered-vertical double-linkage surface structure. The tapered protrusions of each layer of the plastic spring 14 work in conjunction with the vertical connecting surface to distribute deformation stress, making elastic deformation more reasonable and reliable. This innovative design increases the fatigue life of the plastic spring 14 by 300% (tested according to ISO 15654 standard), significantly extending the product's service life. In addition, a return spring 17 is provided, and when the passive iron core 16 of the return spring 17 is compressed in the pilot sleeve 18, it generates elastic force. When the coil body 104 magnetically attracts the moving iron core 16, the elastic force of the return spring 17 is released, resetting the moving iron core 16, the plastic spring 14, and the columnar sealing gasket 13, allowing the columnar sealing gasket 13 to cut off the fluid inside the valve body 11.

[0020] Example 2 like Figures 1-3 As shown, a connecting mechanism 2 is provided at one end of the valve body 11. The connecting mechanism 2 includes an O-ring 21, which is fitted inside the valve body 11. A filter screen 22 is fitted inside the valve body 11. A heat fusion joint 23 is provided at one end of the valve body 11. A fixing nut 24 is fitted on the outer surface of the valve body 11. An annular groove that fits the O-ring 21 is provided on the valve body 11. The filter screen 22 is slidably connected to the valve body 11. The fixing nut 24 is threadedly connected to the valve body 11. The fixing nut 24 is fitted on the outer surface of the heat fusion joint 23. The fixing nut 24 is slidably connected to the heat fusion joint 23.

[0021] In this embodiment, a connecting mechanism 2 is provided, which can be used in conjunction with the valve body 11, so that the valve body 11 can be heat-fused to the plastic water pipe. A filter screen 22 is provided and installed at one end of the valve body 11, so that the filter screen 22 can filter the fluid entering the valve body 11. At the same time, a fixing nut 24 is provided, and the fixing nut 24 adopts a reinforced surrounding structure design to protect the filter screen 22 and the heat-fused joint 23 from being affected by the instantaneous impact of fluid flow. Meanwhile, the valve body 11 innovatively embeds a precision positioning groove structure to ensure that the filter screen 22 is evenly stressed, which significantly improves the impact resistance and long-term operational reliability of the overall structure.

[0022] Working principle: like Figures 1-3As shown, in use, the O-ring 12 can be first installed into the mounting groove 1 inside the valve body 11. Then, the cylindrical sealing gasket 13 is deformed and fitted onto the outer surface of one end of the plastic spring 14, and the cylindrical sealing gasket 13 and the plastic spring 14 can fit together. Then, the O-ring 15 is fitted into the mounting groove 2 inside the plastic spring 14. After that, the moving iron core 16 is threaded to the plastic spring 14. Due to the connecting effect of the return spring 17, the pilot sleeve 18 can be partially fitted onto the outer surface of the moving iron core 16. Then, this part of the components is installed, so that the cylindrical sealing gasket 13 and the plastic spring 14 enter the interior of the valve body 11, and the O-ring 15 is driven to fill the connection between the plastic spring 14 and the valve body 11. Afterwards, the pilot sleeve 18 partially enters the valve body 11 and compresses the O-ring 12. Then, the pilot base 19 is fitted onto the outer surface of the pilot sleeve 18, and the pilot base 19 is in contact with the top surface of the valve body 11. Then, the fastening screw 101 is passed through the pilot base 19 and threadedly connected to the valve body 11 to ensure the stability of the connection between the valve body 11 and other components. Then, the pilot cover 102 is fitted onto the outer surface of the pilot base 19, and the coil sealing gasket 103 and coil sealing ring 105 are installed at appropriate positions at the bottom and top of the coil body 104, respectively. At this time, the pilot cover 102 and the coil body 104 are fitted onto the outer surface of the pilot sleeve 18 and are in a suitable state. Then, the fastening nut 106 is connected to the pilot... The sleeve 18 is threaded until the pilot cover 102 and the coil body 104 are in a stable state. Finally, the O-ring 21 is installed in the annular groove opened at one end of the valve body 11, and the filter screen 22 is installed into the positioning groove opened at one end of the valve body 11. Then, the heat fusion joint 23 is fitted to the port of the valve body 11, and the fixing nut 24 is sleeved on the outer surface of the heat fusion joint 23 and threadedly connected to the valve body 11 to ensure that the heat fusion joint 23 and the filter screen 22 are in a stable state. At this time, the part of the heat fusion joint 23 is placed on the outermost side, so that the reinforcement personnel can use heat fusion to effectively connect the filter screen 22 to the plastic water pipe. The other end of the valve body 11 is effectively connected to other water pipes through its own hexagonal valve and threaded structure. When the fluid... When fluid flows through valve body 11 and needs to pass through, the coil body 104 can be energized. The magnetic force generated by the energized coil body 104 attracts the moving iron core 16. The moving iron core 16 can drive the plastic spring 14 and the columnar sealing gasket 13 to move upward. This opens the seal of the columnar sealing gasket 13 on the internal fluid channel of valve body 11, allowing fluid to pass through valve body 11. When the moving iron core 16 slides inside the pilot sleeve 18, it can compress the return spring 17, causing the return spring 17 to generate elastic force. When the attraction of the coil body 104 on the moving iron core 16 disappears, the elastic force of the return spring 17 will be released instantaneously, automatically resetting the columnar sealing gasket 13, plastic spring 14, and moving iron core 16.This ensures that the columnar sealing gasket 13 tightly seals the fluid passage inside the valve body 11, preventing fluid from passing through normally.

[0023] 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 plastic valve sealing device, characterized in that, include: A conveying mechanism (1) includes a valve body (11). An O-ring (12) is fitted inside the valve body (11). An installation groove that fits the O-ring (12) is provided inside the valve body (11). A plastic spring (14) is fitted inside the valve body (11). A columnar sealing gasket (13) is fitted on the outer surface of one end of the plastic spring (14). An O-ring (15) is fitted on the outer surface of the plastic spring (14). A moving iron core (16) is fitted inside the plastic spring (14). The moving iron core (16) is threadedly connected to the plastic spring (14). A return spring (17) is fitted inside the moving iron core (16). A pilot sleeve (18) is fitted on the outer surface of the moving iron core (16). A pilot base (19) is fitted on the outer surface of the pilot sleeve (18). The pilot base (19) and the valve... The valve body (11) is fitted with a fastening screw (101) inside. The pilot base (19) is fitted with a pilot cover (102) on its outer surface. The top of the pilot cover (102) is provided with a coil body (104). The bottom of the coil body (104) is fitted with a coil sealing gasket (103). The top of the coil body (104) is provided with a coil sealing ring (105) in a groove. The outer surface of the pilot sleeve (18) is fitted with a fastening nut (106). One end of the valve body (11) is provided with a connecting mechanism (2). The connecting mechanism (2) includes an O-ring three (21). The O-ring three (21) is fitted inside the valve body (11). The inside of the valve body (11) is fitted with a filter screen (22). One end of the valve body (11) is provided with a heat fusion joint (23). The outer surface of the valve body (11) is fitted with a fixing nut (24).

2. The plastic valve sealing device according to claim 1, characterized in that: The plastic spring (14) is slidably connected to the valve body (11), the second O-ring (15) is slidably connected to the plastic spring (14), the plastic spring (14) has an installation groove that matches the second O-ring (15), the pilot sleeve (18) is slidably connected to the moving iron core (16), and the pilot base (19) is slidably connected to the pilot sleeve (18).

3. A plastic valve sealing device according to claim 2, characterized in that: The fastening screw (101) is slidably connected to the pilot base (19), the fastening screw (101) is threadedly connected to the valve body (11), the pilot cover (102) is slidably connected to the pilot base (19), and the pilot cover (102) and the coil body (104) are sleeved on the outer surface of the pilot sleeve (18).

4. A plastic valve sealing device according to claim 3, characterized in that: The pilot cover (102) and the coil body (104) are slidably connected to the pilot sleeve (18), the coil sealing gasket (103) is slidably connected to the coil body (104), and the fastening nut (106) is threadedly connected to the pilot sleeve (18).

5. A plastic valve sealing device according to claim 1, characterized in that: The valve body (11) has an annular groove that fits with the O-ring (21). The filter screen (22) is slidably connected to the valve body (11), and the fixing nut (24) is threadedly connected to the valve body (11).

6. A plastic valve sealing device according to claim 5, characterized in that: The fixing nut (24) is sleeved on the outer surface of the heat fusion joint (23), and the fixing nut (24) is slidably connected to the heat fusion joint (23).

7. A plastic valve sealing device according to claim 6, characterized in that: The two ends of the reset spring (17) are fixedly connected to the inner walls of the moving iron core (16) and the pilot sleeve (18), respectively.

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