Leakage-proof ball valve

Abstract

The utility model discloses a leakage-proof ball valve which comprises a valve seat, a valve rod and a valve element. An inlet pipeline and an outlet pipeline are arranged on the two sides of the valve seat correspondingly and communicate with the valve element. And sealing structures are detachably mounted on the inlet pipeline and the outlet pipeline. The sealing structures are detachably installed on the inlet pipeline and the outlet pipeline, liquid leakage can be effectively prevented, and it is guaranteed that the sealing performance of the ball valve is stable and reliable in the using process; and through the arrangement of the conducting head, the ball valve can be matched with an external connecting part, and the applicability of the ball valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and specifically to a leak-proof ball valve. Background Technology

[0002] Ball valves are mainly used in pipelines for shut-off, distribution, and changing the flow direction of media. They can be tightly closed with only a 90-degree rotation and a very small torque. Ball valves are most suitable for use as on / off valves.

[0003] Most existing ball valves require connection to different external components, resulting in poor compatibility. Furthermore, during connection, the valve core cannot be elastically sealed to the inlet and outlet, which causes the sealing ring to affect the sealing performance between the valve core and the inlet and outlet even under friction reduction conditions. Utility Model Content

[0004] The main objective of this invention is to provide a leak-proof ball valve to solve the aforementioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof ball valve, comprising a valve seat, a valve stem, and a valve core; an inlet pipe and an outlet pipe are respectively provided on both sides of the valve seat, and both the inlet pipe and the outlet pipe are connected to the valve core; both the inlet pipe and the outlet pipe are detachably equipped with sealing structures.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the sealing structure includes a connector and a conductive head that is detachably connected to the connector. Two sets of supports are symmetrically arranged at the upper and lower ends of the connector. A disc is hinged on the support. A rotating shaft is provided on the disc. A limiting protrusion is rotatably connected to the rotating shaft. A limiting rod is provided at one end of the limiting protrusion.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: a sealing ring is provided at the end of the connector near the valve core.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: a limiting groove is provided on the outer side wall of the guide head, and an opening is provided on one side of the limiting groove.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the limiting protrusion can abut against the limiting groove.

[0010] The beneficial effects of this utility model are as follows: By detachably installing a sealing structure on the inlet and outlet pipelines, this utility model can effectively prevent liquid leakage and ensure stable and reliable sealing performance of the ball valve during use; and by setting the guide head, it can be adapted to external connection components, improving the applicability of the ball valve. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the connection between the connector and the conductive head in this utility model. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0014] See attached diagram. Figures 1 to 2 The anti-leakage ball valve in this embodiment includes a valve seat 1, a valve stem 2 and a valve core 3; an inlet pipe 30 and an outlet pipe 31 are respectively provided on both sides of the valve seat 1, and both the inlet pipe 30 and the outlet pipe 31 are connected to the valve core 3; a sealing structure can be detachably installed on both the inlet pipe 30 and the outlet pipe 31.

[0015] Furthermore, the sealing structure includes a connector 4 and a conductive head 5 detachably connected to the connector 4. Two sets of supports 41 are symmetrically arranged at the upper and lower ends of the connector 4. A disc 42 is hinged on the support 41. A rotating shaft 43 is provided on the disc 42. A limiting protrusion 44 is rotatably connected to the rotating shaft 43. A limiting rod 45 is provided at one end of the limiting protrusion 44.

[0016] Furthermore, a sealing ring 40 is provided at the end of the connector 4 near the valve core 3.

[0017] Furthermore, a limiting groove 50 is provided on the outer wall of the guide head 5, and an opening 51 is provided on one side of the limiting groove 50.

[0018] Furthermore, the limiting protrusion 44 can abut against the limiting groove 50.

[0019] When connector 4 and conductor 5 are not assembled, limit rod 45 is in the position shown in the attached drawing. Figure 1 The state;

[0020] See attached image. Figure 2 During assembly, the guide head 5 is inserted into the connector head 4, with the opening 51 of the guide head 5 facing the limiting protrusion 44. Then, the limiting rod 45 is moved towards the valve core 3. The limiting rod 45 rotates under the coordinated action of the support 41, the disc 42, and the rotating shaft 43. At this time, the limiting protrusion 44 enters the limiting groove 50 through the opening 51. Then, the guide head 5 is rotated, and the limiting protrusion 44 abuts and engages with the limiting groove 50, thus achieving assembly.

[0021] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A leak-proof ball valve, comprising a valve seat, a valve stem, and a valve core; characterized in that: The valve seat has an inlet pipe and an outlet pipe on both sides, and both the inlet pipe and the outlet pipe are connected to the valve core. Both the inlet pipe and the outlet pipe are detachably equipped with a sealing structure. The sealing structure includes a connector and a conductive head detachably connected to the connector. Two sets of supports are symmetrically arranged at the upper and lower ends of the connector. A disc is hinged on the support. A rotating shaft is provided on the disc. A limiting protrusion is rotatably connected to the rotating shaft. A limiting rod is provided at one end of the limiting protrusion.

2. The anti-leakage ball valve according to claim 1, characterized in that: The connector has a sealing ring at the end near the valve core.

3. The anti-leakage ball valve according to claim 2, characterized in that: The outer wall of the guide head is provided with a limiting groove, and one side of the limiting groove is provided with an opening.

4. A leak-proof ball valve according to claim 3, characterized in that: The limiting protrusion can abut against the limiting groove.

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