A hemispherical valve core

Abstract

This application belongs to the field of valve core technology and discloses a hemispherical valve core, including a valve core body. A V-shaped cut is formed on one side of the valve core body, and a rocker arm is provided at the lower end of the valve core body. A connecting groove is formed on the inner wall of the valve core body, and a rotating groove is formed through the inner wall of the connecting groove. The rocker arm is rotatably connected to the rotating groove, and a connecting assembly for connecting the rocker arm and the valve core body is provided within the connecting groove. This application has the effect of reducing the probability of waste.

Description

Technical Field

[0001] This utility model relates to the field of valve core technology, and in particular to a hemispherical valve core. Background Technology

[0002] Ball valves are known as valves for opening or closing liquid transport pipelines. During operation, the valve opens and closes by the rotation of a ball around the center line of the valve body. A ball valve typically consists of a valve body, a valve core, and a manual or electric actuator to control the opening and closing of the valve core. Based on the shape of the valve core, they can be divided into ball valve cores and hemispherical valve cores. Therefore, ball valves are also classified as full-ball valves and hemispherical ball valves.

[0003] When using a valve core, the operator rotates the valve core using a rocker arm to control the opening and closing of the valve. During this process, if there is a long, thin foreign object inside the valve, rotating the rocker arm to control the valve core may cause the valve core to come into contact with the foreign object, making it difficult to close the valve core. Moreover, this process can easily damage the valve core. In existing technology, because the valve core and rocker arm are designed as a single unit, when the valve core is damaged, both the rocker arm and the valve core must be replaced simultaneously, resulting in waste. Utility Model Content

[0004] To solve the above problems, this utility model provides a hemispherical valve core.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a hemispherical valve core, including a valve core body, a V-shaped cutout on one side of the valve core body, a rocker arm at the lower end of the valve core body, a connecting groove on the inner wall of the valve core body, a rotating groove through the inner wall of the connecting groove, the rocker arm being rotatably connected to the rotating groove, and a connecting component for connecting the rocker arm and the valve core body to each other being provided in the connecting groove.

[0006] By adopting the above technical solution, when operators use the valve, they rotate the rocker arm, which in turn rotates the valve core body, thus opening and closing the valve. When closing the valve, the V-shaped cut can cut through strip-shaped foreign objects inside the valve, reducing the difficulty of closing the valve. Furthermore, when the valve core body is damaged, operators can disassemble the valve core body from the rocker arm using the connecting assembly. In this case, only the valve core body needs to be replaced, eliminating the need to replace it simultaneously and reducing the probability of waste.

[0007] Furthermore, the rocker arm is rotatably connected to the rotating groove. The connecting assembly includes a first connecting member installed in the connecting groove and a second connecting member installed in the connecting groove. Positioning holes are provided through the side walls of both the first and second connecting members. The connecting assembly also includes two positioning posts fixedly installed in the connecting groove. The positioning posts and positioning holes are matched with each other. The first connecting member is connected to the rocker arm.

[0008] By adopting the above technical solution, when the operator needs to connect the valve core body to the rocker arm, the first and second connecting parts need to be removed from the connecting groove. Then, the operator replaces the valve core body with a new one. At this point, the operator can complete the valve core replacement by installing the first and second connecting parts into the connecting groove using the positioning pin. During this process, there is no need to replace the rocker arm, thus reducing the probability of waste.

[0009] Furthermore, the first connector includes a first mounting component installed in the connecting groove and a second mounting component fixed to the rocker arm. The positioning hole is provided on the first mounting component. The rocker arm passes through the valve core body and extends into the connecting groove to be fixed to the second mounting component. A groove is provided through the side wall of the first mounting component, and a protrusion is fixedly provided on the side wall of the second mounting component. The groove and the protrusion match each other.

[0010] By adopting the above technical solution, the first and second mounting components reduce the difficulty for workers to remove the first connector from the connecting groove. During this process, because the rocker arm and the second mounting component are fixed together, and the second mounting component is relatively small, the probability of the rocker arm obstructing the worker's removal of the first connector is reduced, thus lowering the difficulty of the worker's task. Furthermore, the grooves and protrusions reduce the difficulty for workers to connect the first and second mounting components together.

[0011] Furthermore, an installation groove is provided on the outer wall of the positioning post, and a rubber sealing ring is installed in the installation groove, the rubber sealing ring abutting against the inner wall of the positioning hole.

[0012] By adopting the above technical solution, the rubber has good elasticity, and the rubber ring made of rubber material increases the friction between the positioning post and the first and second connecting parts, thereby reducing the probability of the first and second connecting parts separating from the connecting groove during use, thus improving the stability of the device.

[0013] Furthermore, the valve core body includes a first spherical component and a second spherical component, wherein the diameter of the first spherical component near the end of the second spherical component is larger than the diameter of the second spherical component near the end of the first spherical component, and the V-shaped cut is made on the first spherical component.

[0014] By adopting the above technical solution, the diameter of the end of the first spherical part closer to the second spherical part is larger than the diameter of the end of the second spherical part closer to the first spherical part, which reduces the area of ​​friction between the valve core body and the inner wall of the valve when the valve core body rotates, thereby reducing the probability of damage to the valve core body and extending the service life of the device.

[0015] Furthermore, two symmetrical fasteners are fixedly installed on the inner wall of the connecting groove, and the second mounting member has a fixing hole that matches the fastener.

[0016] Furthermore, the fastener is made of rubber, and the diameter of the fastener gradually increases from the end closer to the connecting groove to the end farther away from the connecting groove.

[0017] By adopting the above technical solution, the fastener reduces the probability of the second mounting component separating from the connecting groove, thereby improving the stability of the device. Furthermore, the fastener made of rubber reduces the difficulty for workers to install the second mounting component, thus reducing the workload for the workers.

[0018] Furthermore, the valve core body is made of ceramic.

[0019] By adopting the above technical solution, the valve core body made of ceramic has high hardness and wear resistance, thereby extending the service life of the valve core body.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. In this application, when a worker uses the valve, they turn a rocker arm, which in turn causes the valve core to rotate, thus opening and closing the valve. When the worker closes the valve, the V-shaped cut can cut through strip-shaped foreign objects inside the valve, reducing the difficulty of closing the valve. Furthermore, when the valve core is damaged, the worker can disassemble the valve core from the rocker arm using a connecting assembly. In this case, only the valve core needs to be replaced, eliminating the need to replace it simultaneously and reducing the probability of waste.

[0022] 2. In this application, when the operator needs to connect the valve core body to the rocker arm, the operator needs to remove the first and second connecting parts from the connecting groove. Then, the operator replaces the valve core body with a new one. At this point, the operator can complete the valve core replacement by installing the first and second connecting parts into the connecting groove using the positioning pin. During this process, there is no need to replace the rocker arm, thus reducing the probability of waste.

[0023] 3. In this application, the first and second mounting parts reduce the difficulty for workers to remove the first connector from the connecting groove. During this process, since the rocker arm and the second mounting part are fixed to each other, and the second mounting part is smaller in size, the probability of the rocker arm obstructing the worker's removal of the first connector is reduced, thereby reducing the difficulty of the worker's work. In addition, the groove and the protrusion reduce the difficulty for workers to connect the first and second mounting parts together. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the connecting component in an embodiment of this utility model;

[0026] Figure 3 This is a cross-sectional structural diagram of the first connecting member in an embodiment of this utility model;

[0027] Figure 4 yes Figure 3 A magnified structural diagram of A in the middle;

[0028] Figure 5 yes Figure 3 A magnified structural diagram of B in the diagram.

[0029] In the diagram: 1. Valve core body; 11. First spherical component; 12. Second spherical component; 2. V-shaped cut; 21. Rocker arm; 22. Connecting groove; 23. Rotating groove; 3. Connecting assembly; 31. First connecting component; 311. First mounting component; 312. Second mounting component; 32. Second connecting component; 33. Positioning pin; 34. Positioning hole; 4. Mounting groove; 41. Rubber sealing ring; 5. Fixing component; 51. Fixing hole; 6. Groove; 61. Protrusion. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] like Figure 1-5As shown in the figure, this application discloses a hemispherical valve core, including a valve core body 1, a rocker arm 21, a connecting assembly 3, and a rubber sealing ring 41. A V-shaped cutout 2 is provided on one side of the valve core body 1. The rocker arm 21 is a cylindrical rod structure with a vertical axis, and is located at the upper end of the valve core body 1. A connecting groove 22 is provided on the inner wall of the valve core body 1, and a rotating groove 23 is provided through the inner wall of the connecting groove 22. The rocker arm 21 is rotatably connected to the rotating groove 23.

[0032] When using the valve, the operator rotates the rocker arm 21, which in turn rotates the valve core body 1, thus opening and closing the valve. When closing the valve, the V-shaped cut 2 can cut through strip-shaped foreign objects inside the valve, reducing the difficulty of closing the valve. Furthermore, when the valve core body 1 is damaged, the operator can disassemble the valve core body 1 from the rocker arm 21 using the connecting assembly 3. In this case, only the valve core body 1 needs to be replaced, eliminating the need to replace other parts simultaneously and reducing the probability of waste.

[0033] A connecting assembly 3 is disposed within a connecting groove 22 for connecting the rocker arm 21 to the valve core body 1. The connecting assembly 3 includes a first connecting member 31, a second connecting member 32, and a positioning pin 33. The first connecting member 31 is installed within the connecting groove 22 and is connected to the rocker arm 21. The second connecting member 32 is also installed within the connecting groove 22. Positioning holes 34 are provided through the side walls of both the first and second connecting members 31 and 32. The positioning pin 33 is fixedly disposed within the connecting groove 22, and the positioning pin 33 matches the positioning hole 34.

[0034] When the operator needs to connect the valve core body 1 to the rocker arm 21, the first connecting piece 31 and the second connecting piece 32 need to be removed from the connecting groove 22. Then, the operator replaces the valve core body 1 with a new one. At this point, the operator can complete the valve core replacement by installing the first connecting piece 31 and the second connecting piece 32 into the connecting groove 22 using the positioning pin 33. During this process, there is no need to replace the rocker arm 21, thus reducing the probability of waste.

[0035] The first connecting member 31 includes a first mounting member 311 and a second mounting member 312. A positioning hole 34 is provided on the first mounting member 311. A rocker arm 21 passes through the valve core body 1 and extends into the connecting groove 22, where it is fixed to the second mounting member 312. A groove 6 is provided through the side wall of the first mounting member 311, and a protrusion 61 is fixedly provided on the side wall of the second mounting member 312. The groove 6 and the protrusion 61 are matched with each other.

[0036] The first mounting component 311 and the second mounting component 312 reduce the difficulty for workers to remove the first connecting component 31 from the connecting groove 22. During this process, because the rocker arm 21 and the second mounting component 312 are fixed together, and the second mounting component 312 is relatively small, the probability of the rocker arm 21 obstructing the worker's removal of the first connecting component 31 is reduced, thus lowering the difficulty of the worker's task. Furthermore, the groove 6 and the protrusion 61 reduce the difficulty for workers to connect the first mounting component 311 and the second mounting component 312 together.

[0037] The outer wall of the positioning post 33 is provided with an installation groove 4, and the rubber sealing ring 41 is installed in the installation groove 4, and the rubber sealing ring 41 abuts against the inner wall of the positioning hole 34.

[0038] Rubber has good elasticity. The rubber ring made of rubber increases the friction between the positioning post 33 and the first connector 31 and the second connector 32, thereby reducing the probability of the first connector 31 and the second connector 32 separating from the connecting groove 22 during use, thus improving the stability of the device.

[0039] To extend the service life of the device, the valve core body 1 includes a first spherical component 11 and a second spherical component 12. The diameter of the end of the first spherical component 11 near the second spherical component 12 is larger than the diameter of the end of the second spherical component 12 near the first spherical component 11. A V-shaped cut 2 is formed on the first spherical component 11. The larger diameter of the end of the first spherical component 11 near the second spherical component 12 reduces the area of ​​friction between the valve core body 1 and the inner wall of the valve when the valve core body 1 rotates, thereby reducing the probability of damage to the valve core body 1 and extending the service life of the device.

[0040] To improve the stability of the device, two symmetrical fasteners 5 are fixedly installed on the inner wall of the connecting groove 22. The second mounting member 312 has a fixing hole 51 that matches the fastener 5. The fastener 5 is made of rubber, and its diameter gradually increases from the end closer to the connecting groove 22 to the end farther away. The fasteners 5 reduce the probability of the second mounting member 312 separating from the connecting groove 22, thereby improving the stability of the device. Furthermore, the rubber fasteners 5 reduce the difficulty for workers to install the second mounting member 312, thus reducing the workload for the workers.

[0041] To extend the service life of the valve core body 1, the valve core body 1 is made of ceramic. The ceramic valve core body 1 has high hardness and wear resistance, thus extending the service life of the valve core body 1.

[0042] The operating principle of the hemispherical valve core in this embodiment is as follows: When the operator uses the valve, they rotate the rocker arm 21, which in turn causes the valve core body 1 to rotate under the action of the rocker arm 21, thereby opening and closing the valve. When the operator closes the valve, the V-shaped cut 2 can cut through strip-shaped foreign objects inside the valve, thus reducing the difficulty of closing the valve. Furthermore, when the valve core body 1 is damaged, the operator can disassemble the valve core body 1 from the rocker arm 21 using the connecting assembly 3. In this case, only the valve core body 1 needs to be replaced, eliminating the need to replace it simultaneously, thus reducing the probability of waste.

[0043] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A hemispherical valve core, comprising a valve core body (1), characterized in that: A V-shaped cutout (2) is provided on one side of the valve core body (1). A rocker arm (21) is provided at the lower end of the valve core body (1). A connecting groove (22) is provided on the inner wall of the valve core body (1). A rotating groove (23) is provided through the inner wall of the connecting groove (22). The rocker arm (21) is rotatably connected to the rotating groove (23). A connecting component (3) for connecting the rocker arm (21) and the valve core body (1) is provided in the connecting groove (22).

2. The hemispherical valve core according to claim 1, characterized in that: The rocker arm (21) is rotatably connected to the rotating groove (23). The connecting assembly (3) includes a first connector (31) installed in the connecting groove (22) and a second connector (32) installed in the connecting groove (22). The first connector (31) and the second connector (32) are both provided with positioning holes (34) through their side walls. The connecting assembly (3) also includes two positioning posts (33) fixedly installed in the connecting groove (22). The positioning posts (33) and the positioning holes (34) are matched with each other. The first connector (31) is connected to the rocker arm (21).

3. A hemispherical valve core according to claim 2, characterized in that: The first connector (31) includes a first mounting part (311) installed in the connecting groove (22) and a second mounting part (312) fixed to the rocker arm (21). The positioning hole (34) is provided on the first mounting part (311). The rocker arm (21) passes through the valve core body (1) and extends into the connecting groove (22) and is fixed to the second mounting part (312). A groove (6) is provided through the side wall of the first mounting part (311). A protrusion (61) is fixedly provided on the side wall of the second mounting part (312). The groove (6) and the protrusion (61) match each other.

4. A hemispherical valve core according to claim 2, characterized in that: The outer wall of the positioning post (33) is provided with an installation groove (4), and a rubber sealing ring (41) is installed in the installation groove (4). The rubber sealing ring (41) abuts against the inner wall of the positioning hole (34).

5. A hemispherical valve core according to claim 1, characterized in that: The valve core body (1) includes a first spherical part (11) and a second spherical part (12). The diameter of the first spherical part (11) near the end of the second spherical part (12) is greater than the diameter of the second spherical part (12) near the end of the first spherical part (11). The V-shaped cut (2) is made on the first spherical part (11).

6. A hemispherical valve core according to claim 3, characterized in that: Two mutually symmetrical fasteners (5) are fixedly installed on the inner wall of the connecting groove (22). The second mounting component (312) has a fixing hole (51) that matches the fastener (5).

7. A hemispherical valve core according to claim 6, characterized in that: The fastener (5) is a fastener (5) made of rubber material, and the diameter of the fastener (5) gradually increases from the end near the connecting groove (22) to the end away from the connecting groove (22).

8. A hemispherical valve core according to claim 1, characterized in that: The valve core body (1) is made of ceramic.

Images