Valve with double-sealing structure

Abstract

The utility model discloses a valve with a double-sealing structure in the technical field of valves, which comprises a diverter valve body, two sides of the diverter valve body are connected with connecting pipelines for fluid to enter or discharge, the top of the diverter valve body is further provided with a valve control assembly, and the valve control assembly comprises a first connector. According to the valve designed in the scheme, through the two sets of sealing valve plates additionally arranged at the bottom of the sealing base disc, double-sealing treatment can be conducted on the interior of the flow guide cavity, and when one sealing valve plate in the double-sealing valve body is damaged, the sealing valve plate is not damaged; the other group of sealing valve plates can still seal the interior of the flow guide cavity, the air tightness between the flow guide cavity and the two groups of connecting pipelines can be ensured, and the sealing rubber rings arranged on the outer sides of the sealing valve plates in a sleeving mode can improve the air tightness of connection between the two groups of sealing valve plates and the flow guide cavity. And fluid can be prevented from leaking from a gap connected between the sealing valve plate and the flow guide cavity.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially is related to a valve with double sealing structure. BACKGROUND

[0002] Valves are important devices used to control the flow of fluids such as liquids, gases, or vapors. Their primary function is to regulate and control the flow, pressure, and direction of fluids by opening, closing, or partially obstructing the flow within a pipe. The working principle of valves is based on physical or mechanical changes such as rotation, lifting, or sliding, which in turn changes the state of the fluid passage. They are widely used in water treatment, petroleum, chemical industry, power, and heating, ventilation, and air conditioning (HVAC) among other fields. To meet different operating conditions, valves have diverse designs in terms of structure, material, and sealing methods, ensuring both safety and efficiency in system operation.

[0003] In industrial production processes, pipeline systems are responsible for transporting various fluid media, and valves, as key control components of the pipeline system, play a crucial role in the safety and reliability of the entire system. Currently, most existing valves use a single valve plate design. While this design makes the valve more responsive to control, it cannot provide double sealing for the flow guide cavity of the valve body. When the single valve plate is damaged due to bumps during use, it cannot ensure the air tightness of the connection between the flow guide cavity and the inlet and outlet water pipes, thus posing a certain safety risk during use.

[0004] To address the above-mentioned problems, we propose a valve with double sealing structure. SUMMARY

[0005] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification, and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the utility model aims to provide a valve with double sealing structure, which can solve the problem of traditional single valve plate design that cannot achieve double sealing for the flow guide cavity when the valve plate is damaged, resulting in insufficient air tightness of the inlet and outlet water pipes and further causing safety hazards.

[0007] To solve the above technical problems, the utility model provides a valve with double sealing structure adopts the following technical scheme: including the flow guide valve body, both sides of the flow guide valve body are connected with the connecting pipeline for fluid entering or discharging, the top of the flow guide valve body still is equipped with valve control component, the valve control component includes first connector, the top of the first connector is equipped with the second connector, the second connector is equipped with the valve regulator between the first connector, the inside of the flow guide valve body is equipped with the flow guide cavity, the top of the flow guide cavity is equipped with the adjusting cavity,

[0008] The opening of the adjusting cavity is provided with annular baffle around, two groups of first valve grooves are opened through between the adjusting cavity and the flow guide cavity, two groups of second valve grooves are opened in the bottom of the flow guide cavity.

[0009] Optionally, the valve regulator includes a linkage rod, one end of the linkage rod is provided with an adjusting hand wheel, and the other end of the linkage rod away from the adjusting hand wheel is provided with a double-seal valve body.

[0010] Optionally, the double-seal valve body includes a rotating base disc, the rotating base disc is installed at one end of the linkage rod, a sealing base disc is further provided at the bottom of the rotating base disc, sealing valve plates are connected at both sides of the bottom of the sealing base disc, an adjusting rotating groove is opened in the middle of the sealing base disc, and annular blocking grooves are further opened around the top of the sealing base disc close to the adjusting rotating groove.

[0011] Optionally, the adjusting rotating groove is in rotational cooperation with the rotating base disc, and the annular blocking grooves are in transition cooperation with the annular baffle.

[0012] Optionally, a positioning groove is opened at the outer side of the sealing valve plate, a sealing rubber ring is sleeved at the outer side of the sealing valve plate, and a positioning convex plate is further provided at the inner side of the sealing rubber ring.

[0013] Optionally, the sealing rubber ring is matched with the first valve groove and the second valve groove structure, and the positioning convex plate is in clamping cooperation with the positioning groove.

[0014] In summary, the utility model includes at least one of the following beneficial effects:

[0015] 1. The valve designed in the scheme can continue to play a role when one sealing valve plate is damaged, thereby realizing the sealing of the flow guide cavity and ensuring the air tightness between the flow guide cavity and the two groups of connecting pipelines. The structure design effectively avoids the fluid leakage problem caused by the damage of a single sealing valve plate, greatly improves the reliability and safety of the valve, and in actual application, whether it is transporting high-temperature and high-pressure steam or chemical medium with corrosion, the double-seal structure can stably operate, reducing production accidents and economic losses caused by valve failure.

[0016] 2. The valve designed in this scheme features a positioning groove on the outside of the sealing valve plate and a positioning protrusion on the inside of the sealing ring. The positioning protrusion engages with the positioning groove, limiting the sealing ring to fit snugly against the outside of the sealing valve plate. This ensures a tight fit between the sealing ring and the first and second valve grooves, improving sealing performance. Combined with the annular groove and annular baffle design, when the linkage rod is raised for adjustment, the annular groove embeds into the annular baffle, limiting the sealing base plate and improving the airtightness of the connection between the double-sealed valve body and the adjusting cavity. This prevents fluid leakage from gaps, ensuring the safety and practicality of the equipment. Through this meticulous structural design, the valve maintains a good sealing effect even during long-term use, reducing maintenance costs and frequency, and improving production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a plan view of the valve control component of this utility model;

[0020] Figure 3 This is a plan view of the flow guide valve body of this utility model;

[0021] Figure 4 This is a plan view of the valve regulator of this utility model;

[0022] Figure 5 This is a schematic diagram showing the disassembled double-sealed valve body of this utility model;

[0023] Figure 6 This is a schematic diagram showing the disassembled sealing valve plate of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Flow guide valve body; 2. Connecting pipeline; 3. Valve control assembly; 4. First connector; 5. Second connector; 6. Valve regulator; 7. Flow guide cavity; 8. Adjustment cavity; 9. Annular baffle; 10. First valve groove; 11. Second valve groove; 12. Linkage rod; 13. Adjustment handwheel; 14. Double-sealed valve body; 15. Rotating base plate; 16. Sealing base plate; 17. Sealing valve plate; 18. Adjustment groove; 19. Annular retaining groove; 20. Positioning groove; 21. Sealing ring; 22. Positioning protrusion. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Embodiment: Refer to Figures 1 to 6 The utility model provides a kind of valve with double sealing structure, one embodiment provided by the utility model, valve body 1 is connected with the connecting pipeline 2 for fluid entry or discharge on the both sides of valve body 1, valve body 1 top is also equipped with valve control assembly 3, valve control assembly 3 includes first connector 4, the top of first connector 4 is provided with second connector 5, valve regulator 6 is installed between second connector 5 and first connector 4, the inside of valve body 1 is equipped with guide flow cavity 7, the top of guide flow cavity 7 is provided with adjusting cavity 8, the periphery of adjusting cavity 8 opening is provided with annular baffle 9, two groups of first valve groove 10 are passed through and equipped between adjusting cavity 8 and guide flow cavity 7, the bottom of guide flow cavity 7 is equipped with two groups of second valve groove 11, the valve can be double sealed to the inside of guide flow cavity 7 by the two groups of sealing valve plate 17 of sealing base disc 16 bottom additional installation, when the sealing valve plate 17 in double sealing valve body 14 appears damage, another group of sealing valve plate 17 still can be sealed to the inside of guide flow cavity 7, can ensure the air tightness between guide flow cavity 7 and two groups of connecting pipeline 2, cooperate the sealing rubber ring 21 of sealing valve plate 17 outside sleeve setting, and sealing rubber ring 21 and first valve groove 10, second valve groove 11 structure are matched, still can improve the air tightness of two groups of sealing valve plate 17 and guide flow cavity 7 between connection, can prevent fluid from the gap between sealing valve plate 17 and guide flow cavity 7 between connection leakage.

[0027] The valve regulator 6 comprises a connecting rod 12, one end of the connecting rod 12 is provided with an adjusting hand wheel 13, and the other end of the connecting rod 12 away from the adjusting hand wheel 13 is also provided with a double-seal valve body 14. The valve regulator 6 is mainly composed of the connecting rod 12, the adjusting hand wheel 13 and the double-seal valve body 14. By rotating the adjusting hand wheel 13 in the forward or reverse direction, the double-seal valve body 14 can be lifted and adjusted inside the flow guide cavity 7 and the adjusting cavity 8. The double-seal valve body 14 comprises a rotating base disc 15 installed at one end of the connecting rod 12. The bottom of the rotating base disc 15 is also provided with a sealing base disc 16. The bottom of the sealing base disc 16 is connected with two sealing valve plates 17 on both sides. The middle part of the sealing base disc 16 is provided with an adjusting rotating groove 18. The top of the sealing base disc 16 near the adjusting rotating groove 18 is also provided with an annular blocking groove 19. The two groups of sealing valve plates 17 added at the bottom of the sealing base disc 16 can perform double-seal treatment on the inside of the flow guide cavity 7. When one of the sealing valve plates 17 in the double-seal valve body 14 is damaged, the other group of sealing valve plates 17 can still perform sealing treatment on the inside of the flow guide cavity 7.

[0028] The adjusting rotating groove 18 is in rotating cooperation with the rotating base disc 15, and the annular blocking groove 19 is in transition cooperation with the annular blocking plate 9. Through the transition cooperation between the annular blocking groove 19 and the annular blocking plate 9, when the connecting rod 12 rises in the inside of the flow guide valve body 1, the annular blocking groove 19 can be embedded in the annular blocking plate 9, which can limit the sealing base disc 16 rising and adjusting, and can also improve the air tightness between the double-seal valve body 14 and the adjusting cavity 8. The outer side of the sealing valve plate 17 is provided with a positioning groove 20, and the outer side of the sealing valve plate 17 is provided with a sealing rubber ring 21. The inner side of the sealing rubber ring 21 is also provided with a positioning convex plate 22. Through the sealing rubber ring 21 sleeved outside the sealing valve plate 17, the air tightness between the two groups of sealing valve plates 17 and the flow guide cavity 7 can be improved. The sealing rubber ring 21 is matched with the structure of the first valve groove 10 and the second valve groove 11. The positioning convex plate 22 is in clamping cooperation with the positioning groove 20. Through the clamping cooperation between the positioning convex plate 22 and the positioning groove 20, the sealing rubber ring 21 can be limited to be sleeved outside the sealing valve plate 17. The sealing valve plate 17 can be disassembled, connected, maintained and replaced according to the use condition.

[0029] Working principle: the valve designed in the scheme is mainly composed of a flow guide valve body 1, a connecting pipeline 2 and a valve control assembly 3, wherein the valve control assembly 3 comprises a first connector 4, a second connector 5, a valve regulator 6, a flow guide cavity 7, an adjusting cavity 8 and the like, the valve regulator 6 is rotatably connected to the bottom of a connecting rod 12 through a rotating base disc 15 arranged at one end of the connecting rod 12, and an adjusting rotating groove 18 is arranged in the middle of a sealing base disc 16, the sealing base disc 16 with two sets of sealing valve plates 17 arranged at the bottom can be rotatably connected to the bottom of the connecting rod 12 due to the rotating fit between the adjusting rotating groove 18 and the rotating base disc 15, when the connecting rod 12 is adjusted up and down in the flow guide valve body 1, the double sealing valve body 14 can be adjusted up and down in the adjusting cavity 8, the double sealing valve body 14 can perform double sealing treatment on the flow guide cavity 7 through the two sets of sealing valve plates 17 arranged at the bottom of the sealing base disc 16, when one of the sealing valve plates 17 in the double sealing valve body 14 is damaged, the other sealing valve plate 17 can still perform sealing treatment on the flow guide cavity 7, so that the air tightness between the flow guide cavity 7 and the two sets of connecting pipelines 2 can be ensured.

[0030] The valve designed in the scheme can improve the air tightness between the two sets of sealing valve plates 17 and the flow guide cavity 7 through the structure design that the sealing valve plate 17 is matched with the first valve groove 10 and the second valve groove 11 through the sealing rubber ring 21, and can prevent fluid from leaking from the gap between the double sealing valve body 14 and the adjusting cavity 8 through the cooperation of the annular blocking groove 19 arranged around the top of the sealing base disc 16 and the annular blocking plate 9 arranged around the opening of the adjusting cavity 8, when the connecting rod 12 is adjusted up in the flow guide valve body 1, the annular blocking groove 19 can be embedded into the annular blocking plate 9, so that the sealing base disc 16 that is adjusted up can be limited, and the air tightness between the double sealing valve body 14 and the adjusting cavity 8 can be improved.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application, should be included in the protection scope of the present application.

Claims

1. A valve with double sealing structure, comprising a flow guide valve body (1), characterized in that: The both sides of the guide valve body (1) are connected with the connecting pipeline (2) for fluid inlet or outlet, the top of the guide valve body (1) is also provided with the valve control assembly (3), the valve control assembly (3) comprises the first connector (4), the top of the first connector (4) is provided with the second connector (5), the valve regulator (6) is arranged between the first connector (4) and the second connector (5), the inside of the guide valve body (1) is provided with the guide cavity (7), the top of the guide cavity (7) is provided with the adjusting cavity (8). The opening of the adjusting cavity (8) is provided with the annular baffle (9), the adjusting cavity (8) and the guide cavity (7) are provided with the first valve groove (10), the bottom of the guide cavity (7) is provided with the second valve groove (11).

2. The valve having a double seal structure according to claim 1, characterized in that: The valve regulator (6) comprises the connecting rod (12), one end of the connecting rod (12) is provided with the adjusting hand wheel (13), the other end of the connecting rod (12) is also provided with the double sealing valve body (14).

3. The valve having a double seal structure according to claim 2, characterized in that: The double sealing valve body (14) comprises the rotating base disc (15), the rotating base disc (15) is arranged on one end of the connecting rod (12), the bottom of the rotating base disc (15) is also provided with the sealing base disc (16), the both sides of the bottom of the sealing base disc (16) are connected with the sealing valve plate (17), the middle part of the sealing base disc (16) is provided with the adjusting rotating groove (18), the top of the sealing base disc (16) is also provided with the annular blocking groove (19) around the adjusting rotating groove (18).

4. The valve having a double seal structure according to claim 3, characterized in that: The adjusting rotating groove (18) and the rotating base disc (15) are rotationally connected, the annular blocking groove (19) and the annular baffle (9) are transitionally connected.

5. The valve having a double seal structure according to claim 4, characterized in that: The outer side of the sealing valve plate (17) is provided with the positioning groove (20), the outer side of the sealing valve plate (17) is provided with the sealing rubber ring (21), the inner side of the sealing rubber ring (21) is also provided with the positioning convex plate (22).

6. The valve having a double seal structure according to claim 5, characterized in that: The sealing rubber ring (21) is matched with the first valve groove (10) and the second valve groove (11), the positioning convex plate (22) and the positioning groove (20) are clampedly connected.

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