Hard sealing ball valve

Abstract

The utility model relates to the technical field of ball valves, in particular to a hard sealing ball valve which comprises a valve body, a valve element is rotatably connected to the interior of the valve body, and a protruding block is fixedly connected to the side wall of the valve element. The shell is arranged at the upper end of the valve body, a conical tooth is rotatably connected to the interior of the shell, a rod body is fixedly connected to the lower end of the conical tooth, the rod body is rotatably connected with the lower end of the shell in a penetrating mode, the rod body is slidably connected with the protruding block in a penetrating mode, a vertical rod is fixedly connected to the upper end of the conical tooth, and a dial is fixedly connected to the upper end of the vertical rod. When the valve element is closed, the side wall of the valve element is in complete contact with and tightly attached to the sealing gasket, an effective sealing barrier is formed, it is ensured that fluid in the valve body cannot leak, the sealing effect on the interior of the valve body is improved through the sealing gasket made of the metal material, and therefore hard sealing on the interior of the valve body is achieved; and fluid in the valve body is ensured not to leak through hard sealing when the valve core is closed, so that the integrity and the safety of a system are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a hard-sealed ball valve. Background Art

[0002] A hard-sealed ball valve is a valve that uses a metal seal pair. Both the valve core and the valve seat seal are made of metal. By rotating the ball 90 degrees, the valve can be opened and closed, thereby cutting off or connecting the medium in the pipeline.

[0003] Most of the sealing gaskets of existing ball valves are made of non-metallic materials, such as rubber and polytetrafluoroethylene (PTFE). These materials may have limitations in terms of high temperature resistance, high pressure resistance, corrosion resistance, and wear resistance. Under high-pressure environments, sealing gaskets made of non-metallic materials may not be able to withstand sufficient pressure, resulting in damage or deformation of the sealing gasket. Damaged sealing gaskets will not be able to provide effective sealing effects, thereby causing fluid leakage and posing a safety hazard. Utility Model Content

[0004] The purpose of the utility model is to provide a hard-sealed ball valve, which can improve the safety of the ball valve in use through the structure, so as to solve the problem of poor safety of the ball valve in the prior art.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A hard-sealed ball valve comprises a valve body, wherein a valve core is rotatably connected to the interior of the valve body, and a protrusion is fixedly connected to the side wall of the valve core; a shell, wherein the shell is arranged at the upper end of the valve body, wherein a bevel gear is rotatably connected to the interior of the shell, and a rod body is fixedly connected to the lower end of the bevel gear, wherein the rod body is rotatably connected to the lower end of the shell, wherein the rod body is slidably connected to the protrusion, wherein the upper end of the bevel gear is fixedly connected to a vertical rod, wherein the vertical rod is rotatably connected to the upper end of the shell, and wherein the upper end of the vertical rod is fixedly connected to a dial.

[0007] Preferably, a sealing gasket is provided inside the valve body, the side wall of the sealing gasket is in contact with the side wall of the valve core, and the sealing gasket is made of metal.

[0008] Preferably, a plurality of notches are distributed in an annular array on the inner wall of the protrusion, and a plurality of plates are distributed in an annular array on the side wall of the rod body, and the plates are slidably connected to the notches.

[0009] Preferably, a main bevel gear is rotatably connected inside the housing, and the main bevel gear is engaged with the bevel gear.

[0010] Preferably, a cross bar is rotatably connected to the side wall of the shell, an end of the cross bar is fixedly connected to the side wall of the main bevel gear, and the side wall of the cross bar is fixedly connected to a rotating handle.

[0011] Preferably, a pointer is fixedly connected to the upper end of the shell, and the pointer is configured to be conical.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1. When the valve body needs to be opened, the handle is manually turned to make the crossbar drive the main bevel gear to rotate, and the bevel gear drives the rod body to rotate accordingly, and the rod body drives the plate to rotate. At the same time, the plate pushes the inner wall of the slot to rotate the protrusion, so that the valve core rotates and opens. At the same time, the bevel gear drives the vertical rod to rotate, so that the dial rotates. Combined with the pointer, the operator can intuitively see the rotation angle and status of the valve core. The function of monitoring the valve core status can prevent safety problems such as fluid leakage and pressure abnormality caused by valve misoperation or failure, so that problems can be discovered and corrected in time, ensuring the overall long-term reliable operation and improving safety.

[0014] 2. When the valve core is closed, its side wall is in full contact with the sealing gasket and fits tightly, forming an effective sealing barrier to ensure that the fluid inside the valve body will not leak. The metal sealing gasket improves the sealing effect on the inside of the valve body, thereby achieving a hard seal inside the valve body. The hard seal ensures that the fluid inside the valve body will not leak when the valve core is closed, thereby ensuring the integrity and safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a side view schematic diagram of the external structure of a hard-sealed ball valve proposed by the utility model.

[0016] Figure 2 The utility model is a front cross-sectional structural schematic diagram of a hard-sealed ball valve.

[0017] Figure 3 The utility model is a schematic diagram of a side sectional structure of a hard-sealed ball valve.

[0018] Figure 4 This is a schematic diagram of the top view and cross-sectional structure of a convex block of a hard-sealed ball valve proposed by the utility model.

[0019] In the figure: 001 valve body, 101 valve core, 102 sealing gasket, 103 protrusion, 104 notch, 002 shell, 201 rod body, 202 plate, 203 main cone gear, 204 cone gear, 205 crossbar, 206 handle, 207 vertical rod, 208 dial, 209 pointer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-4 , a hard-sealed ball valve, including a valve body 001, a valve core 101 is rotatably connected inside the valve body 001, and a protrusion 103 is fixedly connected to the side wall of the valve core 101; a shell 002, the shell 002 is arranged at the upper end of the valve body 001, a bevel gear 204 is rotatably connected inside the shell 002, and the lower end of the bevel gear 204 is fixedly connected to the rod body 201, the rod body 201 and the lower end of the shell 002 are rotated through, the rod body 201 and the protrusion 103 are slidably connected, the upper end of the bevel gear 204 is fixedly connected to the vertical rod 207, the vertical rod 207 is rotatably connected to the upper end of the shell 002, and the upper end of the vertical rod 207 is fixedly connected A dial 208 is connected. When the inside of the valve body 001 needs to be opened, the bevel gear 204 drives the rod body 201 to rotate, and at the same time, the rod body 201 drives the protrusion 103 to rotate, so that the valve core 101 rotates and opens. At the same time, the bevel gear 204 drives the vertical rod 207 to rotate, so that the dial 208 rotates. The rotation angle of the dial 208 is displayed, so that the operator can intuitively see the rotation angle and status of the valve core 101. The function of monitoring the status of the valve core 101 can prevent safety problems such as fluid leakage and pressure abnormality caused by valve misoperation or failure.

[0022] A sealing gasket 102 is provided inside the valve body 001, and the side wall of the sealing gasket 102 fits with the side wall of the valve core 101. The sealing gasket 102 is made of metal. When the valve core 101 is closed, its side wall is in full contact with and tightly fits with the sealing gasket 102, forming an effective sealing barrier to ensure that the fluid inside the valve body 001 will not leak. The metal sealing gasket 102 improves the sealing effect on the inside of the valve body 001, thereby achieving a hard seal on the inside of the valve body 001, and ensuring that the fluid inside the valve body will not leak when the valve core is closed through hard sealing.

[0023] A plurality of notches 104 are distributed in a circular array on the inner wall of the protrusion 103, and a plurality of plates 202 are distributed in a circular array on the side wall of the rod body 201. The plates 202 are slidably connected to the notches 104. The rod body 201 drives the plates 202 to rotate, and at the same time, the plates 202 push the inner wall of the notch 104, causing the protrusion 103 to rotate.

[0024] The main bevel gear 203 is rotatably connected inside the housing 002 , and the main bevel gear 203 is engaged with the bevel gear 204 . When the main bevel gear 203 rotates, the bevel gear 204 rotates accordingly.

[0025] A cross bar 205 is rotatably connected to the side wall of the shell 002, and the end of the cross bar 205 is fixedly connected to the side wall of the main bevel gear 203. A rotating handle 206 is fixedly connected to the side wall of the cross bar 205. By manually rotating the rotating handle 206, the cross bar 205 drives the main bevel gear 203 to rotate.

[0026] A pointer 209 is fixedly connected to the upper end of the housing 002. The pointer 209 is set to be conical. The pointer 209 cooperates with the dial 208, and the pointer 209 intuitively reflects and indicates the scale on the side wall of the dial 208.

[0027] In the present invention, when it is necessary to open the inside of the valve body 001, the handle 206 is manually rotated, so that the cross rod 205 drives the main bevel gear 203 to rotate, and the bevel gear 204 drives the rod body 201 to rotate accordingly, and the rod body 201 drives the plate 202 to rotate. At the same time, the plate 202 pushes the inner wall of the slot 104, so that the protrusion 103 rotates, so that the valve core 101 rotates and opens. At the same time, the bevel gear 204 drives the vertical rod 207 to rotate, so that the dial 208 rotates, and then cooperates with the pointer 209, so that the operator can intuitively see the rotation angle and status of the valve core 101. The function of monitoring the status of the valve core 101 can prevent safety problems such as fluid leakage and pressure abnormality caused by valve misoperation or failure.

[0028] When the valve core 101 is closed, the handle 206 is manually rotated to make the cross rod 205 drive the main bevel gear 203 to rotate, and the bevel gear 204 drives the rod body 201 to rotate accordingly, and the rod body 201 drives the plate 202 to rotate. At the same time, the plate 202 pushes the inner wall of the slot 104, so that the protrusion 103 rotates, causing the valve core 101 to rotate and close. Its side wall is in full contact with and tightly fits with the sealing gasket 102, forming an effective sealing barrier to ensure that the fluid inside the valve body 001 will not leak. The metal sealing gasket 102 is used to improve the sealing effect on the inside of the valve body 001, thereby achieving a hard seal on the inside of the valve body 001, and the hard seal ensures that the fluid inside the valve body 001 will not leak when the valve core 101 is closed.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hard-sealed ball valve, characterized in that: include A valve body (001), wherein a valve core (101) is rotatably connected to the interior of the valve body (001), and a protrusion (103) is fixedly connected to the side wall of the valve core (101); A housing (002) is provided at the upper end of the valve body (001), the housing (002) is rotatably connected to a bevel gear (204) inside the housing (002), the lower end of the bevel gear (204) is fixedly connected to a rod (201), the rod (201) and the lower end of the housing (002) are rotatably connected, the rod (201) and the protrusion (103) are slidably connected, the upper end of the bevel gear (204) is fixedly connected to a vertical rod (207), the vertical rod (207) and the upper end of the housing (002) are rotatably connected, and the upper end of the vertical rod (207) is fixedly connected to a dial (208).

2. A hard-sealed ball valve according to claim 1, characterized in that: A sealing gasket (102) is provided inside the valve body (001), and a side wall of the sealing gasket (102) is in contact with a side wall of the valve core (101). The sealing gasket (102) is made of metal.

3. A hard-sealed ball valve according to claim 1, characterized in that: The inner wall of the protrusion (103) is provided with a plurality of notches (104) distributed in an annular array, and the side wall of the rod body (201) is provided with a plurality of plates (202) distributed in an annular array, and the plates (202) are slidably connected to the notches (104).

4. A hard-sealed ball valve according to claim 1, characterized in that: The housing (002) is internally rotatably connected to a main bevel gear (203), and the main bevel gear (203) is meshed with the bevel gear (204).

5. A hard-sealed ball valve according to claim 4, characterized in that: A crossbar (205) is rotatably connected to the side wall of the housing (002), an end of the crossbar (205) is fixedly connected to the side wall of the main bevel gear (203), and a rotating handle (206) is fixedly connected to the side wall of the crossbar (205).

6. A hard-sealed ball valve according to claim 1, characterized in that: A pointer (209) is fixedly connected to the upper end of the housing (002), and the pointer (209) is configured to be conical.

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