Three-way valve ball and ball valve

Abstract

The utility model discloses a three-way valve ball, which relates to the field of three-way valves, and comprises a ball body arranged in a valve cavity of a ball valve body, the ball body is provided with a connecting groove, a first flow channel and a second flow channel, the connecting groove is arranged on the surface of the ball body, and the connecting groove is connected with a valve rod of a ball valve, so that the ball body rotates along with the valve rod. The first flow channel is arranged on the ball body in a penetrating mode, the second flow channel is arranged in the ball body and is not communicated with the first flow channel, confluence and flow distribution of the three-way valve are well achieved through the first flow channel and the second flow channel which are not communicated with each other, and a pipeline channel matched with the three-way valve ball is consistent with a seat valve product in the prior art. Pipelines do not need to be changed, more space is saved, and operation time is shorter. The utility model further discloses a three-way ball valve which comprises the three-way valve ball.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way valves, and more specifically, to a three-way valve ball. The utility model also relates to a three-way ball valve, comprising the three-way valve ball. Background Art

[0002] In the field of liquid regulation, existing three-way regulating valves typically utilize a seat valve structure. During operation, the valve core of this seat valve structure moves up and down to change the flow area of ​​different channels. However, this type of seat valve structure presents several challenges. The seat valve requires relatively large installation space, and as the diameter increases, the required stroke also increases, resulting in a corresponding increase in operating time.

[0003] In summary, how to avoid the problem of high installation space requirements in existing three-way regulating valves and the problem of long operating time corresponding to the adjustment stroke is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a three-way valve ball, which effectively avoids the problem of high installation space requirements in existing three-way regulating valves, and at the same time avoids the problem of long operating time corresponding to the adjustment stroke.

[0005] Another object of the present utility model is to provide a three-way ball valve, comprising the three-way valve ball.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A three-way valve ball, comprising:

[0008] The ball body is arranged in the valve cavity of the ball valve body;

[0009] a connecting groove, formed on the surface of the ball body, and connected to the valve stem of the ball valve so that the ball body rotates along with the valve stem;

[0010] A first flow channel is provided through the spherical body;

[0011] The second flow channel is arranged beside the spherical body and is not communicated with the first flow channel.

[0012] Preferably, the flow channel openings at both ends of the first flow channel are relatively opened on two sides of the spherical body, and the first flow channel is a straight flow channel.

[0013] Preferably, the second flow channel is opened in the circumferential direction of the flow channel wall of the first flow channel, and the two flow channel openings of the second flow channel form a right angle with the axis of the spherical body.

[0014] Preferably, the inner diameters of the two flow channel openings of the first flow channel gradually decrease toward the middle of the first flow channel, and the inner diameter of the middle of the first flow channel is the smallest.

[0015] Preferably, the cross-sections of the two flow channel openings of the first flow channel are both V-shaped.

[0016] Preferably, the cross-sections of the two flow channel openings of the first flow channel are both W-shaped.

[0017] Preferably, the contact surfaces between the outer surface of the spherical body and the inner wall of the valve seat in the ball valve body are both sealing surfaces.

[0018] A three-way ball valve, comprising any of the three-way valve balls described above, further comprising:

[0019] Valve body;

[0020] The valve stem is arranged on the valve body, and the valve stem is connected to the three-way valve ball through the connecting groove, so that the valve stem drives the three-way valve ball to rotate to realize the change of the flow channel.

[0021] Preferably, when the valve stem is rotated to 45°, the flow rate outflowing from the valve body is equal to the flow rate of the first flow channel plus the flow rate of the second flow channel.

[0022] Preferably, sealing blocks are provided at the contact positions between the valve seat in the valve body and the outer wall of the spherical body.

[0023] The three-way valve ball provided by the present utility model includes a spherical body, which is used to be arranged in the valve cavity of the ball valve body. The spherical body is provided with a connecting groove, a first flow channel and a second flow channel. The connecting groove is opened on the surface of the spherical body, and the connecting groove is connected to the valve stem of the ball valve so that the spherical body rotates with the valve stem. The first flow channel is arranged through the spherical body, and the second flow channel is arranged in the spherical body and is not connected to the first flow channel.

[0024] The three-way valve ball provided by the utility model uses the first flow channel and the second flow channel which are not connected to each other. Through the cooperation of the valve stem and the connecting groove, the valve stem drives the ball body to rotate in the valve seat of the ball valve to realize switching of the first flow channel and the second flow channel, and the middle part of the switching of the two is combined, thereby realizing the confluence and diversion of the three-way valve well. The pipeline channel matched with the three-way valve ball is consistent with the seat valve product in the existing technology, and there is no need to change the pipeline, which saves more space and has a faster operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0026] Figure 1 Schematic diagram of the axial side of the valve ball in this embodiment;

[0027] Figure 2 is a cross-sectional view of the valve ball in this embodiment;

[0028] Figure 3 This is a schematic diagram of confluence and diversion in this embodiment;

[0029] Figure 4 This is a schematic diagram showing that the cross section of the flow channel opening in this embodiment is V-shaped;

[0030] Figure 5 This is a schematic diagram showing that the cross section of the flow channel opening in this embodiment is W-shaped;

[0031] Figure 6 This is a schematic diagram of the structure of the three-way ball valve of this embodiment from a first perspective;

[0032] Figure 7 This is a schematic diagram of the structure of the three-way ball valve of this embodiment from a second perspective.

[0033] Figure 1-Figure 7 , the reference numerals include:

[0034] 1. Ball body; 2. Connecting groove; 3. First flow channel; 4. Second flow channel; 5. Valve body; 6. Valve stem. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present application do not indicate any order, quantity or importance. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly. The embodiments of the present application disclose a three-way valve ball and a ball valve.

[0037] The core of the utility model is to provide a three-way valve ball.

[0038] Another core of the present invention is to provide a three-way ball valve, including the three-way valve ball.

[0039] Please refer to Figures 1 to 7 .

[0040] The three-way valve ball provided by the present invention includes a ball body 1, which is used to be set in the valve cavity of the ball valve body 5. The ball body 1 is provided with a connecting groove 2, a first flow channel 3 and a second flow channel 4. The ball body 1 is set in the valve cavity of the ball valve body 5. The connecting groove 2 is opened on the surface of the ball body 1, and the connecting groove 2 is connected to the valve stem 6 of the ball valve so that the ball body 1 rotates with the valve stem 6. The first flow channel 3 is set through the ball body 1, and the second flow channel 4 is set in the ball body 1 and is not connected to the first flow channel 3.

[0041] Specifically, the ball body 1 is connected to the valve stem 6 in the valve body 5 through the connecting groove 2, and the rotation of the valve stem 6 drives the ball body 1 to rotate. During the rotation process, the first flow channel 3 and the second flow channel 4 are switched with each other according to different angles. When the valve stem 6 is in the initial position (0° valve position), the first flow channel 3 flows, realizing the diversion of the first flow channel 3. When the valve stem 6 is rotated 90° from the initial position, the second flow channel 4 flows, realizing the diversion of the second flow channel 4. When the valve stem 6 is in the middle valve position between the two, both the first flow channel 3 and the second flow channel 4 flow, thereby realizing the confluence of the two. The three-way ball valve set by the valve ball realizes the replacement of the three-way valve seat, saving space while realizing confluence and diversion.

[0042] The above-mentioned three-way valve ball uses two first flow channels 3 and second flow channels 4 that are not connected to each other to well realize the confluence and diversion of the three-way valve, and the pipeline channel matched with the three-way valve ball is consistent with the seat valve product in the existing technology. There is no need to change the pipeline, which saves more space and has a faster operation time.

[0043] Furthermore, the first flow channel 3 is opened through the spherical body 1, and the positions of the two flow channel openings of the first flow channel 3 are set as the upper and lower surfaces of the spherical body 1, and then the interior of the spherical body 1 is hollow, and the outer wall of the first flow channel 3 is the inner wall of the hollow part inside the spherical body 1, and the hollow part is the second flow channel 4. The first flow channel 3 and the second flow channel 4 are not connected to each other. With the two flow channel openings of the first flow channel 3 as the upper and lower surfaces of the spherical body 1, the two flow channel openings of the second flow channel 4 are opened on the circumference of the interior of the spherical body 1, and the angle between the two surfaces and the central axis of the spherical body 1 is 90 degrees. The spherical body 1 is located in the middle of the side opposite to one of the flow channel openings of the second flow channel 4, and is provided with a connecting groove 2. The connecting groove 2 is connected to the valve stem 6. The valve stem 6 drives the entire valve ball to rotate through the connecting groove 2, thereby realizing the switching of the flow channel of the valve ball in the valve seat. The first flow channel 3 is channel A and the flow rate therein is flow rate A, and the second flow channel 4 is channel B and the flow rate therein is flow rate B.

[0044] Reference Attachment Figure 3 , Figure 3 This is a schematic diagram of the converging and diverting flow of this three-way ball valve. When the valve stem 6 is in the 0° valve position, flow rate AB = flow rate A. Flow rate B is zero because one of the flow openings of the second flow channel 4 is sealed against the inner wall of the valve body when the valve stem 6 is in the 0° valve position, preventing flow from flowing through port AB.

[0045] When the valve stem 6 is in the 90° valve position, the flow AB=flow B, where flow A is 0 because when the valve stem 6 is in the 90° valve position, one of the flow channel openings of the first flow channel 3 is in a sealed relationship with the inner wall of the valve body and cannot flow through the AB opening.

[0046] When the valve stem 6 is in the 45° valve position (or other intermediate positions), flow AB = flow A + flow B. In this state, there is no sealing relationship between the flow channel openings of the first flow channel 3 and the second flow channel 4 and the inner wall of the valve body. Therefore, part of the flow of the AB port flows into the A port, and the other part flows into the B port, achieving confluence.

[0047] The three-way valve ball provided by the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments.

[0048] In a specific embodiment, reference Figure 1 and Figure 2 The flow channel openings at both ends of the first flow channel 3 are relatively opened on both sides of the spherical body 1, and the first flow channel 3 is a straight flow channel.

[0049] Specifically, the first flow channel 3 extends through the spherical body 1, with two flow channel openings formed on the upper and lower surfaces of the spherical body 1. The outer wall of the first flow channel 3 corresponds to the inner wall of the hollow portion of the spherical body 1. This straight-through flow channel allows the fluid to flow more smoothly through the pipeline, reducing fluid resistance, thereby improving the accuracy and efficiency of flow control. Furthermore, the straight-through flow channel design simplifies the structure of the three-way ball valve, eliminating unnecessary parts and connection points, thereby reducing valve complexity and manufacturing costs.

[0050] Based on any of the above embodiments, Figure 1 and Figure 2 The second flow channel 4 is opened in the circumferential direction of the flow channel wall of the first flow channel 3, and the two flow channel openings of the second flow channel 4 are at a right angle to the axis of the spherical body 1.

[0051] Specifically, the second flow channel 4 is located around the circumference of the spherical body 1. The first flow channel 3 and the second flow channel 4 are not interconnected. The two flow channel openings of the second flow channel 4 are located on any two of the four circumferential surfaces of the spherical body 1, with the angle between these two surfaces and the central axis of the spherical body 1 being 90 degrees. The coordinated arrangement of the first flow channel 3 and the second flow channel 4 provides the three-way ball valve with greater flexibility in fluid control. By adjusting the rotation angle of the ball, a variety of combined control modes for fluid flow direction and flow rate can be achieved.

[0052] Based on any of the above embodiments, Figure 1 and Figure 2 The inner diameters of the two flow channel openings of the first flow channel 3 gradually decrease toward the middle of the first flow channel 3 , and the inner diameter of the middle of the first flow channel 3 is the smallest.

[0053] Specifically, the inner diameters of the two flow channel openings of the first flow channel 3 gradually decrease toward the middle of the first flow channel 3, which is equivalent to setting the straight flow channel into an hourglass shape, thereby effectively increasing the flow rate of the circumferential second flow channel 4, and at the same time making the pressure distribution in the flow channel more uniform, which helps to reduce the erosion and wear of the fluid on the inner wall of the pipeline and extend the service life of the pipeline.

[0054] Based on any of the above embodiments, Figure 4 The cross sections of the two flow channel openings of the first flow channel 3 are both V-shaped.

[0055] Specifically, the modification of the flow channel opening of the first flow channel 3 can effectively realize the equal percentage confluence of the three-way ball valve, which is a further derivation of the circular hole of the first flow channel 3 mentioned above.

[0056] Based on any of the above embodiments, Figure 5 The cross-sections of the two flow channel openings of the first flow channel 3 are both W-shaped.

[0057] Specifically, the W-type can also effectively achieve equal percentage confluence of the three-way ball valve, which is a further derivation of the circular hole in the first flow channel 3 mentioned above.

[0058] Based on any of the above embodiments, the contact surfaces between the outer surface of the ball body 1 and the inner wall of the valve seat in the ball valve body 5 are both sealing surfaces.

[0059] Specifically, when the ball body 1 is driven to rotate by the valve stem 6, the contact surface between the ball body 1 and the valve seat is always in a sealed state, thereby avoiding incomplete contact between the ball body 1 and the valve seat, and further avoiding the ball body 1 from deforming toward the connecting groove position, thereby affecting the sealing.

[0060] Please refer to Figures 1 to 7 .

[0061] The three-way ball valve provided by the present invention includes any of the above-mentioned three-way valve balls, a valve body 5 and a valve stem 6. The valve stem 6 is arranged on the valve body 5. The valve stem 6 is connected to the three-way valve ball through the connecting groove 2 so that the valve stem 6 drives the three-way valve ball to rotate to achieve the change of the flow channel.

[0062] Specifically, the ball body 1 is set to rotate within the valve seat, and the connecting groove 2 is connected to the valve stem 6. The rotation of the valve stem 6 can drive the ball body 1 to rotate within the valve seat to achieve switching between flow channels. When the valve stem 6 is at the 0° valve position, as shown in the attached figure, Figure 6 As shown, one of the flow passages of the second flow passage 4 is in a sealed relationship with the inner wall of the valve body and cannot flow through the AB port. Then the flow B is 0 at this time, and the flow AB = flow A to achieve diversion. When the valve stem 6 is in the 90° valve position, as shown in the attached figure, Figure 7 As shown, one of the openings of the first flow channel 3 is sealed against the inner wall of the valve body, preventing flow from flowing through port AB. Flow A is now zero, and flow AB = flow B, achieving flow diversion. When the valve stem 6 is in the 45° valve position (or other intermediate positions), flow AB = flow A + flow B. In this state, the openings of both the first flow channel 3 and the second flow channel 4 are not sealed against the inner wall of the valve body. Consequently, part of the flow from ports AB flows through port A, while the remaining part flows through port B, achieving merging.

[0063] The above-mentioned three-way ball valve uses the two mutually unconnected first flow channels 3 and second flow channels 4 of the above-mentioned three-way valve ball to well realize the confluence and diversion of the three-way valve, and the pipeline channel matched with the three-way valve ball is consistent with the seat valve product in the existing technology, without changing the pipeline, saving more space and faster operation time.

[0064] Based on any of the above embodiments, when the valve stem 6 rotates to 45°, the flow rate outflowing from the valve body 5 is equal to the flow rate of the first flow channel 3 plus the flow rate of the second flow channel 4.

[0065] Specifically, when the valve stem 6 is in the 45° valve position (or other intermediate positions), flow AB = flow A + flow B. In this state, there is no sealing relationship between the flow channel openings of the first flow channel 3 and the second flow channel 4 and the inner wall of the valve body. Then, part of the flow of the AB port flows in from the A port, and the other part flows in from the B port, achieving confluence.

[0066] Based on any of the above embodiments, a sealing block is provided at the contact position between the valve seat in the valve body 5 and the outer wall of the spherical body 1 .

[0067] Specifically, the sealing block is located at the junction of the valve seat and the upper and lower annular surfaces of the ball body 1. The sealing block is also annular, which can better achieve the sealing performance between the ball body 1 and the valve seat, further improving the sealing performance of the ball valve as a whole. This prevents the ball body 1 from deforming toward the connection groove and affecting the sealing of the ball valve.

[0068] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0069] The above describes in detail the three-way valve ball and ball valve provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A three-way valve ball, characterized in that: The ball valve comprises a spherical body (1) for being arranged in a valve cavity of a ball valve body (5), wherein the spherical body (1) is provided with: A connecting groove (2) is provided on the surface of the ball body (1), and the connecting groove (2) is connected to the valve stem (6) of the ball valve so that the ball body (1) rotates along with the valve stem (6); A first flow channel (3) is provided through the spherical body (1); The second flow channel (4) is arranged in the spherical body (1) and is not connected to the first flow channel (3).

2. A three-way valve ball according to claim 1, characterized in that: The flow channel openings at both ends of the first flow channel (3) are relatively opened on two sides of the spherical body (1), and the first flow channel (3) is a straight flow channel.

3. The three-way valve ball according to claim 1, characterized in that: The second flow channel (4) is opened in the circumferential direction of the flow channel wall of the first flow channel (3), and the two flow channel openings of the second flow channel (4) are at a right angle to the axis of the spherical body (1).

4. A three-way valve ball according to any one of claims 1 to 3, characterized in that: The inner diameters of the two flow channel openings of the first flow channel (3) gradually decrease towards the middle of the first flow channel (3), and the inner diameter of the middle of the first flow channel (3) is the smallest.

5. A three-way valve ball according to any one of claims 1 to 3, characterized in that: The cross-sections of the two flow channel openings of the first flow channel (3) are both V-shaped.

6. A three-way valve ball according to any one of claims 1 to 3, characterized in that: The cross-sections of the two flow channel openings of the first flow channel (3) are both W-shaped.

7. A three-way valve ball according to any one of claims 1 to 3, characterized in that: The contact surfaces between the outer surface of the spherical body (1) and the inner wall of the valve seat in the ball valve body (5) are both sealing surfaces.

8. A three-way ball valve, characterized in that: The three-way valve ball according to any one of claims 1 to 7 further comprises: Valve body (5); A valve stem (6) is provided on the valve body (5), and the valve stem (6) is connected to the three-way valve ball via the connecting groove (2), so that the valve stem (6) drives the three-way valve ball to rotate to achieve flow channel conversion.

9. The three-way ball valve according to claim 8, characterized in that: When the valve stem (6) is rotated to 45°, the flow rate flowing out of the valve body (5) is equal to the flow rate of the first flow channel (3) plus the flow rate of the second flow channel (4).

10. The three-way ball valve according to claim 8, characterized in that: Sealing blocks are provided at the contact positions between the valve seat in the valve body (5) and the outer wall of the spherical body (1).

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