High platform ball valve body with strong connection sealing performance

By combining inner and outer ring seals and adding warning components, the sealing failure problem of high-platform ball valve bodies under harsh operating conditions is solved, achieving high reliability and early leakage warning, thus improving safety and stability.

CN224680168UActive Publication Date: 2026-08-25ZHEJIANG LIZHI METAL PROD TECH CO LTD
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Patent Information

Application Number
CN202522090139.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2026-08-25
Estimated Expiration
2035-09-28

AI Technical Summary

Technical Problem

Under high pressure, high temperature or highly corrosive media conditions, the sealing structure of existing high-platform ball valves is prone to failure, leading to media leakage, safety hazards and energy waste.

Method used

It adopts an inner and outer ring sealing structure to form a multi-level sealing protection, and is equipped with warning components to realize leakage early warning, including the first sealing ring directly attached to the docking flange, the second sealing ring matching the sealing groove, and a pressure transmission and audible and visual alarm system.

Benefits of technology

It significantly improves sealing reliability, provides timely warnings of media leakage, reduces safety risks, and enhances the safe operation level of high-platform ball valves.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a high platform ball valve body with strong connection sealing property belongs to high platform ball valve technical field to solve the existing high platform ball valve body, depends on gasket sealing, fails easily and leaks after long -term use in harsh working condition, and medium splashes cause energy waste, pollution, and because of medium characteristic threatens personnel safety, and stores the hidden danger of the problem. Including ball valve body, connecting flange, connecting hole, sealing groove, installation cylinder, sealing assembly and warning assembly, the connecting flange fixed connection is in the two sides before and after ball valve body, the connecting hole circumference array is in the outside of connecting flange, the sealing groove is set up in the inside of connecting flange, the installation cylinder fixed mounting is in the inside of connecting flange, the sealing assembly sets up in the inside of connecting flange, the warning assembly sets up in the inside of connecting flange. The utility model has strong sealing property, leakage warning, convenient to use and the advantages such as.
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Description

Technical Field

[0001] This utility model belongs to the field of high-platform ball valve technology, and more specifically, it relates to a high-platform ball valve body with strong connection sealing performance. Background Technology

[0002] Ball valves are commonly used industrial valves that control the flow of pipelines by rotating the valve core. They offer advantages such as simple structure, easy operation, and large flow capacity, and are widely used in pipeline systems in industries such as petroleum, chemical, metallurgy, and power. The valve body, as one of the core components of a ball valve, directly affects its sealing performance, service life, and operational reliability. Currently, high-platform ball valves typically use flange connections when connected to pipelines, relying on gaskets between the flanges for sealing.

[0003] Existing application number CN202320869904.2, this utility model relates to a high-platform ball valve, including a valve body, a connecting plate fixedly connected to one side of the valve body, a hollow groove inside the connecting plate, a sliding groove on the inner top wall of the hollow groove, a slider slidably connected inside the sliding groove, a hydraulic cylinder fixedly connected to one side of the hollow groove, a push plate fixedly connected to the output end of the hydraulic cylinder, a compression ring fixedly connected to one side of the push plate, and a sealing gasket fixedly connected to one side of the compression ring. This utility model saves considerable time and effort by facilitating the compression sealing of the connecting pipe, while increasing the safety and stability of the device. It also facilitates operation, preventing leaks caused by poor sealing after connecting the pipe, which could affect water resource management and reduce safety and stability.

[0004] Based on the above, existing high-platform ball valves mostly use flange connections, and their sealing effect mainly relies on the gasket between the flange mating surfaces. However, under harsh operating conditions such as high pressure, high temperature, or highly corrosive media, and after long-term service, traditional sealing structures are prone to sealing failure and media leakage. Once sealing failure occurs, the media may leak in the form of splashing, which not only causes energy waste and environmental pollution, but also poses a threat to the safety of personnel at the production site due to the flammable, explosive, or toxic properties of the leaked media, potentially leading to safety accidents. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a high-platform ball valve body with strong sealing performance. This addresses the issue that existing high-platform ball valve bodies often employ flange connections, relying primarily on gaskets between the flange mating surfaces for sealing. However, under harsh conditions such as high pressure, high temperature, or highly corrosive media, and after prolonged service, traditional sealing structures are prone to seal failure and media leakage. Once seal failure occurs, the media may leak in the form of splashing, which not only wastes energy and pollutes the environment but also poses a potential safety risk to personnel at the production site due to the flammable, explosive, or toxic properties of the leaked media, potentially leading to safety accidents.

[0006] The purpose and function of this utility model, which provides a high-platform ball valve body with strong sealing performance, are achieved by the following specific technical means: A high-platform ball valve body with strong connection sealing includes a ball valve body, a connecting flange, connecting holes, a sealing groove, a mounting sleeve, a sealing assembly, and a warning assembly. The connecting flange is fixedly connected to the front and rear sides of the ball valve body; the connecting holes are arranged in a circumferential array on the outside of the connecting flange; the sealing groove is formed inside the connecting flange; the mounting sleeve is fixedly installed inside the connecting flange; the sealing assembly is disposed inside the connecting flange; and the warning assembly is disposed inside the connecting flange.

[0007] Furthermore, the sealing assembly includes: a first slot and a second slot, wherein the first slot is formed inside the connecting flange and is located on the inner ring of the sealing groove; and the second slot is formed inside the connecting flange and is located on the outer ring of the sealing groove.

[0008] Furthermore, the sealing assembly also includes: a first sealing ring and a second sealing ring, wherein the first sealing ring is engaged inside the first groove; and the second sealing ring is engaged inside the second groove.

[0009] Furthermore, the warning assembly includes a connecting pipe and a transmission piston. The connecting pipe is fixedly installed inside the connecting flange, one end of the connecting pipe is connected to the sealing groove, and the other end of the connecting pipe is fixedly installed at the bottom of the mounting cylinder. The transmission piston is vertically slidably connected inside the mounting cylinder.

[0010] Furthermore, the warning assembly also includes a sliding rod and an elastic element. The sliding rod is vertically slidably connected inside the mounting cylinder and is fixedly mounted on the top of the transmission piston. One end of the elastic element is fixedly mounted inside the mounting cylinder, and the other end of the elastic element is fixedly mounted on the upper part of the transmission piston.

[0011] Furthermore, the warning component also includes a trigger switch and a warning mechanism. The trigger switch is fixedly installed inside the mounting cylinder; the warning mechanism is fixedly installed on the top of the mounting cylinder, and the warning mechanism and the trigger switch are connected together by a circuit to form a switch circuit.

[0012] Furthermore, the warning assembly also includes a buzzer and a warning light, wherein the buzzer is fixedly installed on the top of the warning mechanism; and the warning light is fixedly installed on the top of the warning mechanism.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Firstly, this invention features a sealing assembly that forms multi-level protection through sealing rings distributed in the inner and outer rings. The first sealing ring of the inner ring directly fits into the mating flange, forming an initial sealing barrier that tightly blocks media penetration through elastic deformation. The second sealing ring of the outer ring cooperates with the sealing groove to form a buffer space. When a slight leakage occurs in the inner ring seal, the sealing groove can temporarily accommodate the media, while the second sealing ring further blocks the leakage path, preventing direct leakage of the media and significantly improving the sealing reliability under harsh conditions such as high pressure and high temperature.

[0014] Secondly, this invention features a warning component that provides early warning of leaks through pressure transmission and audible / visual alarms. When a leak occurs in the first sealing ring, the pressure of the medium accumulated in the sealing groove is transmitted to the mounting cylinder through the connecting pipe, pushing the transmission piston to drive the sliding rod and trigger the switch, causing the warning mechanism to activate the buzzer and warning light. This immediate warning mechanism can promptly alert personnel in the early stages of a leak, buying time for maintenance and reducing the potential risk of safety accidents caused by leaks.

[0015] This utility model has the advantages of strong sealing performance, leakage warning, and convenient use. It not only enhances the sealing stability of the valve body connection, but also realizes the early detection and handling of leakage, effectively improving the safe operation level of high platform ball valves in industrial scenarios. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the connecting flange structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the mounting cylinder structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the transmission piston structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the warning mechanism structure of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Ball valve body; 2. Connecting flange; 3. Connecting hole; 4. Sealing groove; 401. First slot; 402. Second slot; 5. Mounting cylinder; 501. Connecting pipe; 502. Transmission piston; 503. Sliding rod; 504. Elastic element; 505. Trigger switch; 506. Warning mechanism; 5061. Buzzer; 5062. Warning light; 6. First sealing ring; 7. Second sealing ring. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] Example 1: As attached Figure 1 To be continued Figure 5 As shown: This utility model provides a high-platform ball valve body with strong connection sealing performance, including a ball valve body 1, a connecting flange 2, a connecting hole 3, a sealing groove 4, a mounting cylinder 5, and a sealing assembly. The connecting flange 2 is fixedly connected to the front and rear sides of the ball valve body 1; the connecting hole 3 is arranged in a circular array on the outside of the connecting flange 2; the sealing groove 4 is opened inside the connecting flange 2; the mounting cylinder 5 is fixedly installed inside the connecting flange 2; and the sealing assembly is disposed inside the connecting flange 2.

[0024] The sealing assembly includes a first groove 401 and a second groove 402. The first groove 401 is formed inside the connecting flange 2 and is located on the inner ring of the sealing groove 4. The second groove 402 is formed inside the connecting flange 2 and is located on the outer ring of the sealing groove 4.

[0025] The sealing assembly also includes a first sealing ring 6 and a second sealing ring 7, wherein the first sealing ring 6 is engaged inside the first slot 401 and the second sealing ring 7 is engaged inside the second slot 402.

[0026] The specific usage and function of this embodiment are as follows: During the connection of the ball valve body 1 to the pipeline, after the two connecting flanges 2 are precisely aligned, they are tightened by bolts passing through the connecting holes 3. When the two sets of connecting flanges 2 are tightly fitted, the sealing groove 4 forms a closed hollow chamber structure between the mating surfaces. At this time, the first sealing ring 6, which is snapped into the first groove 401, directly contacts the sealing surface of the mating flange, forming the first line of defense for sealing. It achieves initial sealing through its own elastic deformation, effectively preventing media penetration. Meanwhile, the second sealing ring 7, located in the second groove 402, plays an auxiliary sealing role, forming a double sealing layout with the first sealing ring 6. If the first sealing ring 6 experiences a slight leakage due to long-term use or fluctuations in operating conditions, the hollow chamber formed by the sealing groove 4 can temporarily buffer and contain the leaking medium, preventing direct leakage. At the same time, the second sealing ring 7 further blocks the leakage path, achieving secondary sealing by its tight fit with the flange surface. This ensures sealing reliability, buys time for subsequent maintenance, and reduces the risk of sudden leakage.

[0027] Example 2: Based on Example 1, such as Figures 1 to 5 As shown, it also includes: a warning component, which is disposed inside the connecting flange 2.

[0028] The warning assembly includes a connecting pipe 501 and a transmission piston 502. The connecting pipe 501 is fixedly installed inside the connecting flange 2. One end of the connecting pipe 501 is connected to the sealing groove 4, and the other end of the connecting pipe 501 is fixedly installed at the bottom of the mounting cylinder 5. The transmission piston 502 is vertically slidably connected inside the mounting cylinder 5.

[0029] The warning component also includes a sliding rod 503 and an elastic element 504. The sliding rod 503 is vertically slidably connected inside the mounting cylinder 5 and is fixedly installed on the top of the transmission piston 502. One end of the elastic element 504 is fixedly installed inside the mounting cylinder 5, and the other end of the elastic element 504 is fixedly installed on the upper part of the transmission piston 502.

[0030] The warning component also includes a trigger switch 505 and a warning mechanism 506. The trigger switch 505 is fixedly installed inside the mounting cylinder 5; the warning mechanism 506 is fixedly installed on the top of the mounting cylinder 5. The warning mechanism 506 and the trigger switch 505 are connected together by a circuit to form a switch circuit.

[0031] The warning components also include a buzzer 5061 and a warning light 5062. The buzzer 5061 is fixedly installed on the top of the warning mechanism 506; the warning light 5062 is fixedly installed on the top of the warning mechanism 506.

[0032] The specific usage and function of this embodiment are as follows: When the first sealing ring 6 leaks, the leaked medium gradually accumulates inside the sealing groove 4, causing the pressure inside the sealing groove 4 to gradually increase. The increased pressure is transmitted to the inside of the mounting cylinder 5 through the connecting pipe 501, pushing the transmission piston 502 to slide vertically upward along the inner wall of the mounting cylinder 5. During the sliding process, the transmission piston 502 simultaneously drives the top sliding rod 503 to move upward, while compressing the elastic element 504 to cause it to undergo elastic deformation. As the sliding rod 503 continues to move upward, when it reaches the trigger position, it will touch the trigger switch 505. The trigger switch 505 transmits a signal to the warning mechanism 506 through the circuit, causing the warning mechanism 506 to start working immediately. At this time, the buzzer 5061 installed on the top of the warning mechanism 506 sounds an alarm, and the warning light 5062 lights up, promptly reminding the staff that the first sealing ring 6 has leaked through a dual audible and visual warning method, facilitating quick detection of the problem and taking repair measures.

[0033] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0034] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0035] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A high platform ball valve body with improved sealing, characterized in that: The valve body of this high-platform ball valve with strong sealing performance includes a ball valve body (1), a connecting flange (2), a connecting hole (3), a sealing groove (4), a mounting sleeve (5), a sealing assembly, and a warning assembly. The connecting flange (2) is fixedly connected to the front and rear sides of the ball valve body (1); the connecting holes (3) are arranged in a circular array on the outside of the connecting flange (2); the sealing groove (4) is opened inside the connecting flange (2); the mounting sleeve (5) is fixedly installed inside the connecting flange (2); and the sealing assembly is disposed inside the connecting flange (2). The sealing assembly includes: a first slot (401), a second slot (402), a first sealing ring (6), and a second sealing ring (7). The first slot (401) is located inside the connecting flange (2) and is situated within the inner ring of the sealing groove (4). The second slot (402) is located inside the connecting flange (2) and is situated within the outer ring of the sealing groove (4). The first sealing ring (6) is engaged with the first slot (401). The second sealing ring (7) is engaged with the second slot (402). The warning assembly is disposed inside the connecting flange (2).

2. The high platform ball valve body with strong connection sealing ability according to claim 1, characterized in that: The warning assembly includes a connecting pipe (501) and a transmission piston (502). The connecting pipe (501) is fixedly installed inside the connecting flange (2). One end of the connecting pipe (501) is connected to the sealing groove (4), and the other end of the connecting pipe (501) is fixedly installed at the bottom of the mounting cylinder (5). The transmission piston (502) is vertically slidably connected inside the mounting cylinder (5).

3. The high platform ball valve body with strong connection sealing ability according to claim 2, characterized in that: The warning assembly also includes a sliding rod (503) and an elastic element (504). The sliding rod (503) is vertically slidably connected inside the mounting cylinder (5) and is fixedly installed on the top of the transmission piston (502). One end of the elastic element (504) is fixedly installed inside the mounting cylinder (5), and the other end of the elastic element (504) is fixedly installed on the upper part of the transmission piston (502).

4. The high platform ball valve body with strong connection sealing ability according to claim 2, characterized in that: The warning component also includes a trigger switch (505) and a warning mechanism (506). The trigger switch (505) is fixedly installed inside the mounting cylinder (5). The warning mechanism (506) is fixedly installed on the top of the mounting cylinder (5). The warning mechanism (506) and the trigger switch (505) are connected together by a circuit to form a switch circuit.

5. The high platform ball valve body with a tight seal connection of claim 2, wherein: The warning assembly also includes a buzzer (5061) and a warning light (5062), wherein the buzzer (5061) is fixedly installed on the top of the warning mechanism (506); and the warning light (5062) is fixedly installed on the top of the warning mechanism (506).

Citation Information

Patent Citations

  • High platform ball valve

    CN219692516U