High-sealing leakage-proof PPR ball valve
By adopting a special-shaped rubber ring and spring retaining ring structure in the ball valve, the problems of poor sealing and leakage of traditional ball valves are solved, and better sealing performance and smoothness are achieved.
Patent Information
- Application Number
- CN202421635094.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-10
AI Technical Summary
Traditional ball valves are sealed by fixed rubber rings. After use, the rubber ring will deform, resulting in poor sealing and leakage.
A high-seal leakage-proof PPR ball valve is designed, adopting a special-shaped rubber ring and a spring retaining ring structure. Through the push of the elastic structure, the special-shaped rubber ring and the arc surface of the valve core are better fitted, and the sealing performance is improved.
It effectively improves sealing performance, avoids leakage, and improves smoothness when the valve core rotates, reducing clots.
Smart Images
Figure CN222950455U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ball valves, in particular to a high-sealing and leak-proof PPR ball valve. Background Art
[0002] Traditional ball valves are sealed by fixed rubber rings, which will deform slightly after use, causing them to not fit well with the valve core, which will cause leakage in the long run. Utility Model Content
[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, a high-sealing and leak-proof PPR ball valve is provided, which solves the above problems.
[0004] The utility model solves the technical problem by adopting the following technical solutions:
[0005] A highly sealing and leak-proof PPR ball valve comprises a valve body with flanges at both ends, a rotating seat is provided at upper and lower symmetrical positions in the middle of the valve body, a spline shaft is rotatably provided in the rotating seat for being inserted into the two ends of the valve core for driving the valve core to rotate, the valve core is rotatably arranged in a spherical cavity in the middle of the valve body, and the outer arc surface of the valve core can fit into a pipe inner opening in the valve body to achieve sealing.
[0006] Preferably, a special-shaped rubber ring is embedded and fixed in the valve body.
[0007] Preferably, a first spring retaining ring is embedded and fixed in the valve body, and the first spring retaining ring is pressed on the special-shaped rubber ring to press it on the outer arc surface of the valve core to achieve a better sealing effect.
[0008] Preferably, a second spring retaining ring is embedded in the valve body and pressed on the outside of the first spring retaining ring.
[0009] Preferably, spline holes are fixedly provided at the upper and lower ends of the valve core, and the spline shaft is plug-connected with the spline holes.
[0010] Preferably, a metal pressure plate is fixedly provided at the outer end of the valve body by bolts, and the metal pressure plate pushes the second spring retaining ring inward.
[0011] The advantages and positive effects of the utility model are: the structure is more compact, and the elastic structure enables the special-shaped rubber ring to better fit the arc surface of the valve core, effectively improving the sealing performance, and when the valve core rotates, the elastic deformation of the expansion and contraction amount improves the smoothness of the valve core rotation process, avoids jamming, increases the elastic margin of the special-shaped rubber ring, and reduces the probability of leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 It is a structural schematic diagram of the utility model;
[0015] Figure 3 It is a structural schematic diagram of the utility model;
[0016] Figure 4 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0017] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.
[0018] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:
[0019] like Figure 1-4 As shown, a high-sealing and leak-proof PPR ball valve described in the utility model includes a valve body 11 with flanges at both ends, a rotating seat 12 is provided at upper and lower symmetrical positions in the middle of the valve body 11, a spline shaft 19 is rotatably provided in the rotating seat 12 for being inserted into the two ends of the valve core 10 for driving the valve core 10 to rotate, the valve core 10 is rotatably arranged in the middle spherical cavity of the valve body 11, and the outer arc surface of the valve core 10 can fit into a pipe inner opening in the valve body 11 to achieve sealing.
[0020] Preferably, a special-shaped rubber ring 13 is embedded and fixed in the valve body 11 .
[0021] Preferably, a first spring retaining ring 14 is embedded and fixed in the valve body 11 , and the first spring retaining ring 14 presses on the special-shaped rubber ring 13 to press it on the outer arc surface of the valve core 10 to achieve a better sealing effect.
[0022] Preferably, a second spring retaining ring 15 is embedded in the valve body 11 and pressed against the outside of the first spring retaining ring 14 .
[0023] Preferably, spline holes 18 are fixedly provided at the upper and lower ends of the valve core 10 , and the spline shaft 19 is plug-connected with the spline holes 18 .
[0024] Preferably, a metal pressure plate 17 is fixedly provided at the outer end of the valve body 11 by bolts, and the metal pressure plate 17 pushes the second spring retaining ring 15 inward.
[0025] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.
Claims
1. A highly sealed and leakproof PPR ball valve, comprising a valve body (11) with flanges at both ends, characterized in that: A rotating seat (12) is provided at a symmetrical position in the middle of the valve body (11), and a spline shaft (19) is rotatably provided in the rotating seat (12) for being inserted into the two ends of the valve core (10) for driving the valve core (10) to rotate. The valve core (10) is rotatably arranged in a spherical cavity in the middle of the valve body (11), and the outer arc surface of the valve core (10) can fit in a pipe inner opening in the valve body (11) to achieve sealing; a special-shaped rubber ring (13) is embedded and fixed in the valve body (11); a first spring retaining ring (19) is embedded and fixed in the valve body (11) 14), the first spring retaining ring (14) is pressed on the special-shaped rubber ring (13) to press it on the outer arc surface of the valve core (10); a second spring retaining ring (15) is embedded in the valve body (11) and pressed on the outside of the first spring retaining ring (14); spline holes (18) are fixedly provided at the upper and lower ends of the valve core (10), and the spline shaft (19) is plug-connected with the spline holes (18); a metal pressure plate (17) is fixedly provided at the outer end of the valve body (11) by bolts, and the metal pressure plate (17) pushes the second spring retaining ring (15) inward.