Ball

Abstract

The utility model discloses a ball which comprises a ball body and a medium flow channel arranged on the ball body, and an emergency cut-off piece is movably arranged in the medium flow channel. A matching structure is formed between the emergency cut-off piece and the medium flow channel, the matching structure comprises a circulation stroke structure and a cut-off stroke structure in the flowing direction of a medium, and a pre-value assembly enabling the emergency cut-off piece to be switched between the circulation stroke structure and the cut-off stroke structure is connected to the emergency cut-off piece. The utility model has the following advantages and effects: the high-voltage cut-off function is realized, so that the practicability of the product is improved.

Description

Technical Field

[0001] The utility model relates to a valve component, in particular to a sphere. Background Art

[0002] The ball is a key component in a valve. It is typically spherical, with a central channel formed within the ball. Rotating, the ball controls the flow of the valve, thereby controlling the flow of the medium. Balls are typically made of materials such as stainless steel, copper, and cast iron, which offer excellent corrosion resistance and mechanical properties.

[0003] In a piping system, a malfunction can cause a high-pressure overload. Because the pressure upstream of the ball valve is greater than the pressure downstream, coupled with the fluid resistance created by the rapid flow of the medium, controlling the ball valve for emergency shutoff under these conditions requires overcoming the significant resistance. While this is possible with an automatic ball valve, manual control is extremely difficult with a manual ball valve. In many unique operating conditions, the use of an automatic ball valve is unfeasible. Therefore, the present invention was conceived to address this issue. Utility Model Content

[0004] The purpose of the utility model is to provide a sphere, by which a ball valve is given a high-pressure cutoff function, thereby improving the practicality of the product.

[0005] The above technical purpose of the present utility model is achieved through the following technical solutions: a sphere, including a sphere body and a medium flow channel arranged on the sphere body, an emergency shut-off component is movably arranged in the medium flow channel, a matching structure is formed between the emergency shut-off component and the medium flow channel, and the matching structure includes a flow stroke structure and a shut-off stroke structure along the flow direction of the medium, and a pre-value component is connected to the emergency shut-off component to enable the emergency shut-off component to switch between the flow stroke structure and the shut-off stroke structure.

[0006] By adopting the above technical solution, a preset switching value is assigned to the emergency shutoff component through a preset component. When the pipeline system is in a normal state, the emergency shutoff component corresponds to the flow stroke structure, allowing the medium to flow through the emergency shutoff component normally. When the pipeline system fails and enters a high-pressure state, the pipeline pressure and fluid impulse acting on the emergency shutoff component exceed the preset switching value set by the preset component. The emergency shutoff component can then be switched from the flow stroke structure to the shutoff stroke structure, forming an emergency shutoff seal without manual closure, thereby improving the practicality of the product.

[0007] It is further configured that: the emergency shut-off member slides reciprocatingly along the axis of the medium flow channel.

[0008] By adopting the above technical solution, the emergency shut-off member is switched between the flow stroke structure and the shut-off stroke structure by sliding.

[0009] It is further configured as follows: the flow stroke structure is a flow groove arranged on the medium flow channel wall, one end of which is connected to the medium flow channel opening and the other end extends into the interception stroke structure, and the flow grooves are distributed around the center of the medium flow channel.

[0010] By adopting the above technical solution, the flow groove structure distributed on the wall of the medium flow channel allows the medium to pass through the emergency shut-off member through the flow groove on the basis of satisfying the sliding fit between the emergency shut-off member and the medium flow channel, thereby ensuring the normal transmission of the fluid medium and avoiding structural interference.

[0011] It is further configured that: the shut-off stroke structure is a shut-off ring fixedly arranged on the wall of the medium flow channel, and the orthographic projection of the emergency shut-off member along the axis of the medium flow channel at least partially overlaps with the shut-off ring to form a seal therebetween.

[0012] By adopting the above technical solution, high pressure drives the emergency shut-off member to move toward the shut-off ring, and the two are pressed against each other to achieve emergency shut-off sealing of the medium flow channel.

[0013] It is further configured that: the position where the shut-off ring contacts the emergency shut-off piece is a sealing slope extending along one side of the opposite flow stroke structure and gradually shrinking, and the position where the emergency shut-off piece contacts the sealing slope is a matching slope adapted to the sealing slope.

[0014] By adopting the above technical solution, the cooperation between the sealing bevel and the matching bevel can better achieve a tight seal between the emergency shut-off component and the shut-off ring, and can also better compensate for the assembly tolerance formed by the assembly between the two, thereby achieving a better sealing and shut-off effect.

[0015] It is further configured that: the pre-value component includes a mounting bracket arranged in the medium flow channel and a pre-value spring connecting the mounting bracket and the emergency shut-off member, and the mounting bracket does not interfere with the medium passing through the medium flow channel.

[0016] By adopting the above technical solution, the emergency shut-off member is given a set elastic pre-value by setting the pre-value spring, so as to realize the switching of the emergency shut-off member between two positions.

[0017] It is further configured as follows: an upper docking portion is fixedly provided above the spherical body, a docking groove for inserting the valve stem is formed on the upper docking portion, a mounting hole for the mounting bracket to pass through is connected between the docking groove and the medium flow channel, and the mounting bracket is inserted into the medium flow channel through the mounting hole and sealed with the mounting hole.

[0018] By adopting the above technical solution, the mounting bracket can be installed into the medium flow channel through the mounting hole, thereby completing the convenient installation of the mounting bracket in the sphere. When the valve stem is installed in the docking groove, the mounting bracket is restricted from coming out of the mounting hole, thereby achieving the purpose of stable installation.

[0019] It is further configured as follows: one end of the preset spring is fixedly connected to the emergency shut-off piece, and the other end is fixedly engaged with the mounting frame.

[0020] By adopting the above technical solution, convenient assembly between the mounting frame and the emergency shut-off member is achieved.

[0021] In summary, the present invention has the following beneficial effects: the present invention has a high-voltage cutoff function, thereby improving the practicality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of an embodiment;

[0023] Figure 2 Schematic diagram of the structure of the embodiment.

[0024] In the figure: 1. sphere body; 2. medium flow channel; 3. emergency shut-off member; 4. flow groove; 5. shut-off ring; 6. sealing slope; 7. matching slope; 81. mounting frame; 82. pre-value spring; 9. upper docking part; 10. docking groove; 11. mounting hole. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] refer to Figure 1 and Figure 2 A sphere includes a sphere body 1 and a medium flow channel 2 defined within the sphere body 1. An emergency shutoff member 3 is movably disposed within the medium flow channel 2. A mating structure is formed between the emergency shutoff member 3 and the medium flow channel 2. The mating structure includes a flow-through structure and a shutoff structure along the flow direction of the medium. A pre-set component is connected to the emergency shutoff member 3 to enable it to switch between the flow-through and shutoff configurations.

[0027] The emergency shutoff member 3 slides reciprocatingly with the medium flow channel 2 along its axis. The flow path structure comprises a flow groove 4 formed in the wall of the medium flow channel 2, one end of which connects to the medium flow channel 2 opening and the other end of which extends into the shutoff structure. Several flow grooves 4 are arranged around the center of the medium flow channel 2. The shutoff structure comprises a shutoff ring 5 integrally formed in the wall of the medium flow channel 2. The orthographic projection of the emergency shutoff member 3 along the axis of the medium flow channel 2 at least partially overlaps with the shutoff ring 5 to form a seal therebetween. The shutoff ring 5 is annular in shape, and one end of the flow groove 4 extends into the shutoff ring 5.

[0028] The shutoff ring 5 contacts the emergency shutoff member 3 at a gradually tapering sealing bevel 6 extending along one side of the opposite flow path structure. The emergency shutoff member 3 contacts the sealing bevel 6 at a mating bevel 7 that mates with the sealing bevel 6. The pre-set assembly includes a mounting bracket 81 disposed within the medium flow channel 2 and a pre-set spring 82 connecting the mounting bracket 81 to the emergency shutoff member 3. The mounting bracket 81 does not interfere with the flow of the medium through the medium flow channel 2.

[0029] An upper docking portion 9 is integrally formed above the spherical body 1. This upper docking portion 9 defines a docking slot 10 for inserting the valve stem. A mounting hole 11, through which a mounting bracket 81 passes, connects the docking slot 10 to the medium flow channel 2. The mounting bracket 81 is inserted into the medium flow channel 2 through the mounting hole 11 and seals with the mounting hole 11. A sealing ring is provided between the mounting hole 11 and the mounting bracket 81. One end of a pre-set spring 82 is fixedly connected to the emergency shutoff member 3, and the other end is secured to the mounting bracket 81 by a snap fit. The mounting bracket 81 serves as a mounting rod.

[0030] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A sphere, comprising a sphere body (1) and a medium flow channel (2) arranged in the sphere body (1), characterized in that: An emergency shutoff component (3) is movably provided in the medium flow channel (2), a matching structure is formed between the emergency shutoff component (3) and the medium flow channel (2), and the matching structure includes a flow stroke structure and a shutoff stroke structure along the flow direction of the medium, and the emergency shutoff component (3) is connected to a pre-value component that enables the emergency shutoff component (3) to switch between the flow stroke structure and the shutoff stroke structure.

2. The sphere according to claim 1, characterized in that: The emergency shutoff member (3) is in reciprocating sliding engagement with the medium flow channel (2) along its axis.

3. The sphere according to claim 2, characterized in that: The flow stroke structure is a flow groove (4) arranged on the wall of the medium flow channel (2), one end of which is connected to the opening of the medium flow channel (2) and the other end of which extends into the interception stroke structure. The flow grooves (4) are arranged in a plurality of shapes and distributed around the center of the medium flow channel (2).

4. The sphere according to claim 2, characterized in that: The shutoff stroke structure is a shutoff ring (5) fixedly arranged on the wall of the medium flow channel (2); the orthographic projection of the emergency shutoff member (3) along the axis of the medium flow channel (2) at least partially overlaps with the shutoff ring (5) to form a seal between the two.

5. The sphere according to claim 4, characterized in that: The position where the shutoff ring (5) contacts the emergency shutoff member (3) is a sealing bevel (6) extending along one side of the opposite flow stroke structure and gradually shrinking, and the position where the emergency shutoff member (3) contacts the sealing bevel (6) is a matching bevel (7) adapted to the sealing bevel (6).

6. The sphere according to claim 1, characterized in that: The pre-value component comprises a mounting frame (81) arranged in the medium flow channel (2) and a pre-value spring (82) connecting the mounting frame (81) and the emergency shut-off member (3); the mounting frame (81) does not interfere with the medium passing through the medium flow channel (2).

7. The sphere according to claim 6, characterized in that: An upper docking portion (9) is fixedly provided above the spherical body (1), and a docking groove (10) for inserting the valve stem is formed on the upper docking portion (9). A mounting hole (11) for the mounting bracket (81) to pass through is connected between the docking groove (10) and the medium flow channel (2). The mounting bracket (81) is inserted into the medium flow channel (2) through the mounting hole (11) and is sealed with the mounting hole (11).

8. The sphere according to claim 6, characterized in that: One end of the pre-value spring (82) is fixedly connected to the emergency shut-off member (3), and the other end is fixedly engaged with the mounting frame (81).

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