Novel ball valve sealing ring

Abstract

The utility model provides a novel ball valve sealing ring which comprises a rubber plug, a framework and a covering film, one end of the framework is connected with a ball valve, the other end of the framework is connected with the rubber plug, two sealing reinforcing peaks are integrally formed on one side of the rubber plug, a sealing plane and a sealing concave arc portion are integrally formed on the other opposite side of the rubber plug, and the rubber plug is connected to the ball valve in a sealing mode. And covering films are arranged on the sealing plane and the sealing concave arc part. The sealing device is simple to assemble, excellent and stable in sealing performance due to a linear sealing mode, capable of adapting to vibration and displacement, higher in practicability, low in cost and capable of being popularized and used.

Description

Technical Field

[0001] This utility model relates to a valve sealing component, specifically a novel ball valve sealing ring. Background Technology

[0002] The water valves responsible for switching water circuits in automotive thermal management systems are critical components, and their sealing performance is paramount. Currently, most water valves use an internal sealing method composed of plastic and rubber parts, each typically consisting of 2-3 components, all of which are rigidly sealed to the valve. The defects arising from this issue include the following:

[0003] 1) Design and installation aspects: complex design, difficult installation, and large space requirements.

[0004] 2) Cost aspects: Rising manufacturing costs and increased maintenance costs

[0005] 3) In terms of reliability and performance: increased probability of failure and unstable performance.

[0006] Therefore, it is necessary to improve the design of a ball valve sealing ring with a high degree of integration, simplified structure, and superior sealing performance. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a new type of ball valve sealing ring that addresses the shortcomings of the prior art. This sealing ring is simple to assemble, and the line sealing method makes the sealing performance excellent and stable. It can adapt to vibration and displacement, is more practical, and has a low cost, so it can be widely used.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a novel ball valve sealing ring, characterized in that it includes a rubber plug, a skeleton, and a membrane. One end of the skeleton is connected to the ball valve, and the other end of the skeleton is connected to the rubber plug. Two sealing reinforcement peaks are integrally formed on one side of the rubber plug, and a sealing plane and a sealing concave arc are integrally formed on the opposite side of the rubber plug. The rubber plug is sealed to the ball valve, and a membrane is provided on the sealing plane and the sealing concave arc. The rubber plug is made of EPDM. The rubber plug generates a contact seal by adhering to the ball valve surface, a compression seal by elastic deformation, and a sealing pressure by the rebound force of the rubber plug. The skeleton is made of PA66-GF30. The skeleton provides structural support for the rubber plug, assists in positioning, prevents the rubber plug from being extruded, improves the overall strength of the sealing ring, and provides an operating force point for easy disassembly and installation. The membrane is made of PTFE. The membrane reduces the coefficient of friction, reduces loss, fills micro-gaps, and improves sealing performance.

[0009] Preferably, the rubber stopper has a connecting groove for fitting the end of the skeleton.

[0010] Preferably, a sealing filling valley is provided between the two sealing reinforcement peaks. The cross-section of the sealing reinforcement peak is an arc structure with a radius of 0.48 mm, the cross-section of the sealing filling valley is an arc structure with a radius of 0.45 mm, the cross-section of the sealing concave arc portion is an arc structure with a radius of 0.3 mm, and a transition arc segment with a cross-sectional radius of 0.5 mm is integrally formed between the sealing concave arc portion and the sealing plane. The cross-sectional width of the skeleton is 2.4 mm, and the thickness of the coating is 0.3 mm.

[0011] Preferably, the sealing reinforcement peak contacts the top pressure ball valve, and the diaphragm contacts the top pressure ball valve.

[0012] This utility model has the following advantages compared with the prior art:

[0013] The rubber stopper of this invention has a double-peak structure on one side, which can effectively increase the sealing reliability; the other side of the rubber stopper has a flat plus single-peak structure, so that the two sides of the rubber stopper form a line seal with the ball valve. Due to the characteristics of its sealing line, it can follow the movement of the ball valve core and maintain the sealing state well during the movement of the ball valve core, and adapt to a certain degree of vibration and displacement.

[0014] This invention ensures the sealing performance of the ball valve by utilizing the stress generated by the contact deformation of the rubber plug and the diaphragm. The diaphragm reduces the coefficient of friction and improves the service life and sealing performance of the sealing ring.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model.

[0017] Figure 2 This is a schematic diagram simulating the sealing pressure of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the sealing connection of this utility model inside the ball valve.

[0019] Explanation of reference numerals in the attached figures:

[0020] Detailed Implementation

[0021] like Figure 1 and Figure 3As shown, this utility model includes a rubber stopper 1, a skeleton 2, and a membrane 3. One end of the skeleton 2 is connected to a ball valve 4, and the other end is connected to the rubber stopper 1. Two sealing reinforcement peaks 1-2 are integrally formed on one side of the rubber stopper 1, and a sealing plane 1-1 and a sealing concave arc portion 1-4 are integrally formed on the opposite side of the rubber stopper 1. The rubber stopper 1 is sealed to the ball valve 4, and the membrane 3 is provided on the sealing plane 1-1 and the sealing concave arc portion 1-4. The rubber stopper 1 is made of EPDM. The rubber stopper 1 generates a contact seal by adhering to the ball valve 4, a compression seal by elastic deformation, and a sealing pressure by the rebound force of the rubber stopper 1. The skeleton 2 is made of PA66-GF30. The skeleton 2 is used to provide structural support for the rubber stopper, assist in positioning, prevent the rubber stopper 1 from being squeezed out, improve the overall strength of the sealing ring, and provide an operating force point for easy disassembly and installation. The membrane 3 is made of PTFE. The membrane 3 is used to reduce the coefficient of friction, reduce losses, fill micro-gaps, and improve sealing performance.

[0022] In this embodiment, the rubber plug 1 is provided with a connecting groove 1-5 for fitting the end of the skeleton 2.

[0023] In this embodiment, a sealing filling valley 1-3 is provided between the two sealing reinforcement peaks 1-2. The cross-section of the sealing reinforcement peak 1-2 is an arc structure with a radius of 0.48 mm, the cross-section of the sealing filling valley 1-3 is an arc structure with a radius of 0.45 mm, the cross-section of the sealing concave arc portion 1-4 is an arc structure with a radius of 0.3 mm, and a transition arc segment 1-6 with a cross-sectional radius of 0.5 mm is integrally formed between the sealing concave arc portion 1-4 and the sealing plane 1-1. The cross-sectional width of the skeleton 2 is 2.4 mm, and the thickness of the coating 3 is 0.3 mm.

[0024] In this embodiment, the sealing reinforcement peak 1-2 contacts the top pressure ball valve 4, and the membrane 3 contacts the top pressure ball valve 4.

[0025] like Figure 2 As shown, the sealing pressure during simulation was 1.15 MPa, which meets the design standard. At a pressure of 5 bar (gauge pressure) (industry standard requires 0.2-3.5 bar), the internal leakage was 4 mL / min (industry standard requires 16.6 mL / min). After the life test, the internal leakage was 15 mL / min, which fully meets the industry standard requirements, proving that the sealing ring designed in this embodiment has excellent sealing performance.

[0026] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any simple modifications, alterations, and equivalent changes made to the above embodiments based on the technical essence of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A novel ball valve sealing ring, characterized in that, The device includes a rubber stopper (1), a skeleton (2), and a membrane (3). One end of the skeleton (2) is connected to a ball valve (4), and the other end of the skeleton (2) is connected to the rubber stopper (1). Two sealing reinforcement peaks (1-2) are integrally formed on one side of the rubber stopper (1), and a sealing plane (1-1) and a sealing concave arc (1-4) are integrally formed on the opposite side of the rubber stopper (1). The rubber stopper (1) is sealed to the ball valve (4), and a membrane (3) is provided on the sealing plane (1-1) and the sealing concave arc (1-4).

2. The novel ball valve sealing ring according to claim 1, characterized in that, The rubber stopper (1) has a connecting groove (1-5) for fitting the end of the skeleton (2).

3. The novel ball valve sealing ring according to claim 1, characterized in that, A sealing filling valley (1-3) is provided between the two sealing reinforcement peaks (1-2). The cross-section of the sealing reinforcement peak (1-2) is a circular arc structure with a radius of 0.48 mm. The cross-section of the sealing filling valley (1-3) is a circular arc structure with a radius of 0.45 mm. The cross-section of the sealing concave arc part (1-4) is a circular arc structure with a radius of 0.3 mm. A transition circular arc segment (1-6) with a cross-sectional radius of 0.5 mm is integrally formed between the sealing concave arc part (1-4) and the sealing plane (1-1). The cross-sectional width of the skeleton (2) is 2.4 mm. The thickness of the coating (3) is 0.3 mm.

4. A novel ball valve sealing ring according to claim 1, characterized in that, The sealing reinforcement peak (1-2) contacts the top pressure ball valve (4), and the membrane (3) contacts the top pressure ball valve (4).

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