Large-diameter rotary cone valve core

Abstract

The utility model relates to the field of valve elements, in particular to a large-diameter rotary cone valve element which comprises a valve element body, a conical valve element body is rotationally installed at the bottom of the valve element body, an orifice plate is fixedly installed in the middle of the conical valve element body, a through groove is oppositely formed in the outer side of the conical valve element body, and installation grooves are formed in the two ends of the inner wall of the through groove. An edge plate is rotationally mounted in the mounting groove through a rotating shaft, and a guide strip is mounted on one side of the edge plate. The pair of edge plates is arranged at the through groove formed in the outer side of the conical valve element, in the half-opening adjusting process of the valve element, fluid punches the edge plates and the guide strip, the guide strip can rotate in a self-adaptive mode when receiving impact force, the flow area at the through groove is properly enlarged, and the hole flow plate arranged in the conical valve element is matched, so that the flow rate of the valve element is increased, and the service life of the valve element is prolonged. And meanwhile, the wear-resistant coatings are arranged on the guide strips so that the wear resistance can be improved, the abrasion loss to the edge of the valve element in the circulation process can be reduced, and the service life of the conical valve element can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of valve core technology, and in particular to a large-diameter spiral cone valve core. Background Technology

[0002] A rotary cone valve core is a valve core that controls the opening or closing of a flow passage in the valve body by rotating its conical or cylindrical portion. It typically includes a core seat with a conical chamber at the bottom and a core shaft that extends from the bottom of the core seat and has a frustum at the bottom that fits against the conical chamber.

[0003] Depending on the requirements, large-diameter spiral cone valve cores are used in applications requiring large flow control and passage. Traditional spiral cone valve cores used for large-diameter applications often use the same structure and materials as ordinary valve cores. When facing large flow rates or media flows with particle impact, eddies, and bubbles, traditional valve cores wear out faster and cannot effectively switch on / off or regulate. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a large-diameter spiral cone valve core.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A large-diameter rotary cone valve core includes a valve core body. A cone-shaped valve core is rotatably mounted on the bottom of the valve core body. A flow plate is fixedly mounted in the middle of the cone-shaped valve core. A through groove is opened opposite to the outside of the cone-shaped valve core. Mounting grooves are opened at both ends of the inner wall of the through groove. An edge plate is rotatably mounted in the mounting groove through a rotating shaft. A guide strip is installed on one side of the edge plate.

[0007] In addition, a preferred structure is that a valve stem is installed on the upper part of the valve core body, and one end of the valve stem passes through the connecting cylinder and is fixedly connected to the top of the conical valve core.

[0008] Furthermore, in a preferred configuration, a valve stem is inserted into the conical valve core, the bottom end of the valve stem is connected to the top of the orifice plate, and the bottom of the orifice plate is fixedly installed at the bottom of the conical valve core.

[0009] Furthermore, in a preferred configuration, the guide strip has a wear-resistant coating on its surface, and the guide strip faces the inside of the conical valve core in its natural state, with a rounded corner at one end of the guide strip.

[0010] In addition, a preferred structure is that the top and bottom walls of the mounting groove are provided with slots, and connecting steel bars are snapped into the slots. The two ends of the connecting steel bars are limited by the slots, and the middle part of the connecting steel bars is snapped into the inner wall of the guide strip by a U-shaped buckle.

[0011] Furthermore, in a preferred configuration, the top and bottom walls of the edge plate are rotatably mounted in the mounting groove via a pivot.

[0012] The beneficial effects of this utility model are as follows:

[0013] In this invention, a pair of edge plates are provided at the through groove on the outside of the conical valve core. During the valve core half-open adjustment process, the fluid impacts the edge plates and guide strips. When the guide strips receive the impact force, they will rotate adaptively and appropriately expand the flow area at the through groove. In conjunction with the orifice plate provided inside the conical valve core, the flow velocity of the fluid at the through groove is reduced. At the same time, the guide strips are provided with a wear-resistant coating to improve wear resistance, reduce wear and loss at the edge of the valve core during the flow process, and improve the service life of the conical valve core. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of the large-diameter spiral cone valve core proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the conical valve core structure proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the edge plate mounting structure proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the edge plate connection structure proposed in this utility model.

[0018] In the diagram: 1 Valve core body, 2 Connecting cylinder, 3 Valve stem, 4 Conical valve core, 5 Edge plate, 51 Guide strip, 52 Wear-resistant coating, 6 Orifice flow plate, 7 Connecting steel strip, 8 Through groove, 81 Mounting groove, 9 U-shaped buckle, 10 Rotary shaft. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-4 A large-diameter rotary cone valve core includes a valve core body 1. A cone valve core 4 is rotatably mounted on the bottom of the valve core body 1. A flow plate 6 is fixedly mounted in the middle of the cone valve core 4. A through groove 8 is opened opposite to the outside of the cone valve core 4. A mounting groove 81 is opened at both ends of the inner wall of the through groove 8. An edge plate 5 is rotatably mounted in the mounting groove 81 through a rotating shaft 10. A guide strip 51 is installed on one side of the edge plate 5.

[0021] Furthermore, a valve stem 3 is installed on the upper part of the valve core body 1, and one end of the valve stem 3 passes through the connecting cylinder 2 and is fixedly connected to the top of the conical valve core 4.

[0022] Furthermore, a valve stem 3 is inserted inside the conical valve core 4, the bottom end of the valve stem 3 is connected to the top of the orifice plate 6, and the bottom of the orifice plate 6 is fixedly installed inside the bottom of the conical valve core 4.

[0023] Furthermore, the guide bar 51 has a wear-resistant coating 52 on its surface, and the guide bar 51 faces the inside of the conical valve core 4 in its natural state. A rounded corner is provided at one end of the guide bar 51. The wear-resistant coating 52 increases the overall wear resistance of the guide bar 51, reduces the wear and loss of the guide bar 51 when the fluid passes through, and the rounded corner can increase the flow performance.

[0024] Furthermore, the top and bottom walls of the mounting groove 81 are provided with slots, and connecting steel bars 7 are snapped into the slots. The two ends of the connecting steel bars 7 are limited by the slots, and the middle part of the connecting steel bars 7 is snapped into the inner wall of the guide bar 51 by a U-shaped buckle 9.

[0025] Furthermore, the top and bottom walls of the edge plate 5 are rotatably mounted in the mounting groove 81 via the pivot 10.

[0026] In this embodiment, the valve stem 3 controls the rotation of the conical valve core 4, thereby completing the valve body's on / off and adjustment functions. In actual use, during the half-open adjustment of the conical valve core 4, a large flow of fluid will impact the edge of the conical valve core 4. At this time, the edge plate 5 and guide strip 51 can effectively guide the fluid and reduce wear on the edge of the through groove 8. At the same time, due to the impact of the fluid, the guide strip 51 can rotate to a certain extent through the rotating shaft 10 and the connecting steel strip 7, thereby increasing the overall flow area of ​​the through groove 8, appropriately expanding the flow channel area of ​​the valve, reducing the flow velocity of the fluid in the through groove 8, and reducing the impact and wear on the edge of the valve core.

[0027] In actual use, the wear-resistant coating 52 increases the overall wear resistance of the guide strip 51, reduces the wear and tear on the guide strip 51 when fluid passes through, and the rounded corner setting can increase the flow performance.

[0028] In actual use, the orifice plate 6 inside the cone valve core 4 has multiple holes to mitigate fluid impact.

[0029] In actual use, the two ends of the connecting steel bar 7 are restricted, so a certain amount of reset capability will be generated during the rotation of the guide bar 5.

[0030] In this invention, a pair of edge plates 5 are provided at the through groove 8 on the outside of the conical valve core 4. During the valve core half-open adjustment process, the fluid impacts the edge plates 5 and the guide strip 51. When the guide strip 51 receives the impact force, it will rotate adaptively and appropriately expand the flow area at the through groove. In conjunction with the orifice plate provided inside the conical valve core 4, the flow velocity of the fluid at the through groove 8 is reduced. At the same time, the guide strip 51 is provided with a wear-resistant coating 52 to improve wear resistance, reduce wear and loss at the edge of the valve core during the flow process, and improve the service life of the conical valve core 4.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A large-diameter spiral cone valve core, comprising a valve core body (1), characterized in that: A conical valve core (4) is rotatably mounted on the bottom of the valve core body (1), a hole flow plate (6) is fixedly mounted on the middle of the conical valve core (4), and a through groove (8) is provided on the outer side of the conical valve core (4) opposite to each other, and mounting grooves (81) are provided at both ends of the inner wall of the through groove (8), an edge plate (5) is rotatably mounted in the mounting groove (81) via a rotating shaft (10), and a guide strip (51) is mounted on one side of the edge plate (5).

2. The large-diameter spiral cone valve core according to claim 1, characterized in that: A valve stem (3) is installed on the upper part of the valve core body (1), and one end of the valve stem (3) passes through the connecting tube (2) and is fixedly connected to the top of the conical valve core (4).

3. The large-diameter spiral cone valve core according to claim 1, characterized in that: A valve stem (3) is inserted into the interior of the conical valve core (4), the bottom end of the valve stem (3) is connected to the top of the orifice plate (6), and the bottom of the orifice plate (6) is fixedly mounted on the bottom end of the interior of the conical valve core (4).

4. The large-diameter spiral cone valve core according to claim 1, characterized in that: The surface of the guide strip (51) is provided with a wear-resistant coating (52), and the guide strip (51) faces the inside of the conical valve core (4) in a natural state, and an arc angle is provided at one end of the guide strip (51).

5. The large-diameter spiral cone valve core according to claim 1, characterized in that: The top and bottom walls of the installation groove (81) are both provided with slots, and connecting steel bars (7) are clamped and installed in the slots. The two ends of the connecting steel bar (7) are limited by the slots, and the middle part of the connecting steel bar (7) is clamped and connected to the inner wall of the guide bar (51) through a U-shaped buckle (9).

6. The large-diameter spiral cone valve core according to claim 1, characterized in that: The top and bottom walls of the edge plate (5) are rotatably mounted in the mounting groove (81) via a rotating shaft (10).

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