Three-way ball valve

Abstract

The utility model provides a three-way ball valve, which relates to the technical field of ball valves, and comprises a three-way valve body, three ends of the three-way valve body are respectively welded with an internal thread bushing, the inner wall of the three-way valve body is rotatably provided with a valve rod, one end of the valve rod is fixedly provided with a hand wheel, and the outer surface of the hand wheel is provided with a limiting device. According to the hand wheel fixing device, the disc abuts against the bottom of the hand wheel, the hand wheel can be fixed through friction force between the disc and the hand wheel, meanwhile, the outer surface of the hand wheel can be shielded through the disc, and the hand wheel can be fixed through the limiting device; and even if the hand wheel is subjected to the external force, the hand wheel is fixed through the disc, the situation that the hand wheel is prone to rotating, and consequently the on-off and flowing conditions of fluid in the three-way ball valve are changed can be prevented, and normal use of the three-way ball valve is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a three-way ball valve. Background Technology

[0002] A three-way ball valve is a valve device used to control and regulate the flow of fluid in multiple directions. It plays an important role in pipeline systems, and is essential equipment in pipelines transporting natural gas, oil, and chemicals, as well as in various technological processes.

[0003] The flow of fluid inside a three-way ball valve is mainly controlled by a handwheel connected to the valve stem. The valve stem is connected to a steel ball inside the valve, which has three through holes. Rotating the handwheel causes the through holes on the steel ball to rotate, thereby controlling the flow direction and velocity of the fluid inside the three-way ball valve by changing the position of the through holes. However, the handwheel is directly exposed. If it is impacted by an external force, it may rotate, which will change the flow of fluid inside the three-way ball valve and make it difficult to use the three-way ball valve normally. Utility Model Content

[0004] This utility model addresses the problem that the handwheel is directly exposed, and if subjected to external impact, it may rotate, thereby altering the flow and opening of the fluid within the three-way ball valve, which hinders its normal use. Therefore, this utility model proposes a three-way ball valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a three-way ball valve, comprising a three-way valve body, wherein internal threaded sleeves are welded to all three ends of the three-way valve body, a valve stem is rotatably mounted on the inner wall of the three-way valve body, a handwheel is fixedly mounted on one end of the valve stem, and a limiting device is provided on the outer surface of the handwheel, wherein the limiting device fixes the handwheel by abutting against the bottom of the handwheel with a disc.

[0006] The effect achieved by the above components is as follows: by setting the disc to abut against the bottom of the handwheel, the friction between the disc and the handwheel can fix the handwheel. At the same time, the disc can also shield the outer surface of the handwheel, which helps to prevent external forces from acting directly on the handwheel. Even if the handwheel is subjected to external forces, the disc's fixation of the handwheel can prevent the handwheel from rotating easily, thus avoiding changes in the flow and opening of the fluid in the three-way ball valve, making it easier to use the three-way ball valve normally.

[0007] Preferably, the limiting device includes a disc, the inner diameter of which is larger than the outer diameter of the handwheel and is disposed at the bottom of the handwheel. The disc is sleeved on the outer surface of the valve stem. Circular hole blocks are symmetrically fixedly installed on the outer surface of the disc. A spring is installed at the bottom of the circular hole block, and one end of the spring is fixedly installed on the outer surface of the three-way valve body.

[0008] The effect achieved by the above components is as follows: by setting a spring, when the spring is not subjected to other external forces, it will push the disc connected to the circular hole block until the disc moves toward the handwheel until the inner wall of the disc completely abuts against the bottom of the handwheel. Then the disc can block and fix the handwheel, which helps to prevent the handwheel from easily rotating under the action of external forces.

[0009] Preferably, a round rod is inserted into the inner wall of the spring, one end of the round rod is fixedly installed on the outer surface of the three-way valve body, and the round hole block is slidably installed on the outer surface of the round rod.

[0010] The effect achieved by the above components is as follows: by setting the round rod, the round rod can limit and guide the spring and the round hole block, which helps to prevent the spring from bending during deformation, and at the same time helps to prevent the disc from easily rotating and pulling the spring, making the disc more stable during movement.

[0011] Preferably, a rubber ring is bonded to the bottom of the inner wall of the disc, and an annular groove is formed on the top of the rubber ring.

[0012] The effect achieved by the above components is that by setting the rubber ring, the contact area and friction between the handwheel and the inner wall of the disc can be increased, making the disc more secure in fixing the handwheel.

[0013] Preferably, four rubber blocks are evenly fixedly installed on the top of the disc, and the vertical cross-section of the rubber blocks is triangular.

[0014] The effect achieved by the above-mentioned components is as follows: when the disc moves upward and gradually comes into contact with the top of the handwheel by setting the triangular rubber block, the rubber block will deform until the handwheel is completely inserted into the disc. At this time, the bottom of the rubber block comes into contact with the top of the handwheel, and the rubber block can play an auxiliary role in fixing the handwheel.

[0015] Preferably, a fixing assembly is provided between the disc and the three-way valve body. The fixing assembly includes a sliding sleeve, which is fixedly installed on the outer surface of the disc. A rectangular rod is slidably installed on the inner wall of the sliding sleeve. One end of the rectangular rod is fixedly installed on the top of the three-way valve body. A threaded pin is threaded into one side of the sliding sleeve.

[0016] The effect achieved by the above components is that by rotating the threaded pin, one end of the threaded pin abuts against one side of the rectangular rod, which can fix the disc and the rectangular rod together and help prevent the disc from easily shifting.

[0017] Preferably, a silicone strip is adhered to the inner wall of one side of the rectangular rod, and the threaded pin is disposed on one side of the silicone strip.

[0018] The effect achieved by the above components is that by setting the silicone strip, the friction between the threaded pin and the rectangular rod can be increased, making the threaded pin more securely fixed to the disc.

[0019] Preferably, an operating block is fixedly mounted on one of the threaded pins, and the outer surface of the operating block is provided with protrusions.

[0020] The effect achieved by the above components is as follows: by setting the operating block, rotating the operating block can drive the threaded pin to rotate. At the same time, the outer surface of the operating block is provided with protrusions, which can effectively increase the friction of the outer surface of the operating block and have an anti-slip effect when rotating the operating block, thus making it easier to rotate the threaded pin by the operating block.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, by setting the disc to abut against the bottom of the handwheel, the friction between the disc and the handwheel can fix the handwheel. At the same time, the disc can also shield the outer surface of the handwheel, which helps to prevent external forces from acting directly on the handwheel. Even if the handwheel is subjected to external forces, the disc's fixation of the handwheel can prevent the handwheel from easily rotating, which would cause changes in the flow and opening of the fluid in the three-way ball valve, making it easier to use the three-way ball valve normally. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the main body of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the limiting device of this utility model;

[0025] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0026] Figure 4 This is a schematic diagram of the fixing component structure of this utility model.

[0027] Legend: 1. Three-way valve body; 2. Internal threaded sleeve; 3. Valve stem; 4. Handwheel; 5. Limiting device; 51. Disc; 52. Circular hole block; 53. Spring; 54. Circular rod; 55. Rubber ring; 56. Rubber block; 6. Fixing component; 61. Sliding sleeve; 62. Rectangular rod; 63. Threaded pin; 64. Silicone strip; 65. Operating block. Detailed Implementation

[0028] Example 1, referring to Figures 1-3As shown, this embodiment discloses a three-way ball valve, including a three-way valve body 1. Each of the three ends of the three-way valve body 1 is welded with an internally threaded sleeve 2. A valve stem 3 is rotatably mounted on the inner wall of the three-way valve body 1. A handwheel 4 is fixedly mounted on one end of the valve stem 3. A limiting device 5 is provided on the outer surface of the handwheel 4. The limiting device 5 fixes the handwheel 4 by abutting against the bottom of the handwheel 4 with a disc 51. By setting the disc 51 to abut against the bottom of the handwheel 4, the friction between the disc 51 and the handwheel 4 can fix the handwheel 4. At the same time, the disc 51 can also shield the outer surface of the handwheel 4, which helps to prevent external forces from directly acting on the handwheel 4. Even if the handwheel 4 is subjected to external force, the fixing of the handwheel 4 by the disc 51 can prevent the handwheel 4 from easily rotating, thus preventing changes in the flow and switching of fluid within the three-way ball valve, making it easier to use the three-way ball valve normally.

[0029] Reference Figure 2 and Figure 3 As shown, the limiting device 5 includes a disc 51. The inner diameter of the disc 51 is larger than the outer diameter of the handwheel 4 and is located at the bottom of the handwheel 4. The disc 51 is sleeved on the outer surface of the valve stem 3. Circular hole blocks 52 are symmetrically fixedly installed on the outer surface of the disc 51. A spring 53 is installed at the bottom of the circular hole blocks 52. One end of the spring 53 is fixedly installed on the outer surface of the three-way valve body 1. By setting the spring 53, when there is no other external force, the spring 53 will push the disc 51 connected to the circular hole blocks 52 until the disc 51 moves towards the handwheel 4, until the inner wall of the disc 51 completely abuts against the bottom of the handwheel 4. 1 can shield and fix the handwheel 4, which helps to prevent the handwheel 4 from easily rotating under the action of external force; a round rod 54 is inserted into the inner wall of the spring 53, one end of the round rod 54 is fixedly installed on the outer surface of the three-way valve body 1, and the round hole block 52 is slidably installed on the outer surface of the round rod 54. By setting the round rod 54, the round rod 54 can limit and guide the spring 53 and the round hole block 52, which helps to prevent the spring 53 from bending during deformation, and at the same time helps to prevent the disc 51 from easily rotating and pulling the spring 53, making the disc 51 more stable during movement.

[0030] Reference Figure 2 and Figure 3As shown, a rubber ring 55 is bonded to the bottom of the inner wall of the disc 51. The top of the rubber ring 55 has an annular groove. By setting the rubber ring 55, the contact area and friction between the handwheel 4 and the inner wall of the disc 51 can be increased, making the disc 51 more secure in fixing the handwheel 4. Four rubber blocks 56 are evenly fixed on the top of the disc 51. The vertical cross-section of the rubber blocks 56 is triangular. By setting the triangular rubber blocks 56, when the disc 51 moves upward and gradually comes into contact with the top of the handwheel 4, the rubber blocks 56 will deform until the handwheel 4 is completely inserted into the disc 51. At this time, the bottom of the rubber block 56 comes into contact with the top of the handwheel 4, and the rubber block 56 can play an auxiliary role in fixing the handwheel 4.

[0031] Reference Figure 4 As shown, a fixing component 6 is provided between the disc 51 and the three-way valve body 1. The fixing component 6 includes a sliding sleeve 61, which is fixedly installed on the outer surface of the disc 51. A rectangular rod 62 is slidably installed on the inner wall of the sliding sleeve 61. One end of the rectangular rod 62 is fixedly installed on the top of the three-way valve body 1. A threaded pin 63 is threadedly inserted into one side of the sliding sleeve 61. By rotating the threaded pin 63, one end of the threaded pin 63 abuts against one side of the rectangular rod 62, which can fix the disc 51 and the rectangular rod 62, thus preventing the disc 51 from easily shifting.

[0032] Reference Figure 4 As shown, a silicone strip 64 is bonded to the inner wall of one side of the rectangular rod 62, and a threaded pin 63 is set on one side of the silicone strip 64. By setting the silicone strip 64, the friction between the threaded pin 63 and the rectangular rod 62 can be increased, making the threaded pin 63 more securely fixed to the disc 51. An operating block 65 is fixedly installed on one side of the threaded pin 63. The outer surface of the operating block 65 is provided with protrusions. By setting the operating block 65, rotating the operating block 65 can drive the threaded pin 63 to rotate. At the same time, the protrusions on the outer surface of the operating block 65 can effectively increase the friction of the outer surface of the operating block 65, which has an anti-slip effect when rotating the operating block 65, thus facilitating the rotation of the threaded pin 63 by the operating block 65.

[0033] Working principle: When spring 53 is not subjected to other external forces, it pushes the disc 51 connected to the circular hole block 52. The disc 51 causes the circular hole block 52 to slide on the outer surface of the circular rod 54. When the disc 51 moves upward, it gradually comes into contact with the top of the handwheel 4, causing the rubber block 56 to deform until the handwheel 4 is completely inserted into the disc 51. At this time, the bottom of the rubber block 56 abuts against the top of the handwheel 4, and the rubber ring 55 abuts against the bottom of the handwheel 4. Thus, the disc 51 can block and fix the handwheel 4. At the same time, the disc 51... 1 can also shield the outer surface of the handwheel 4, which helps to prevent external forces from acting directly on the handwheel 4. Even if the handwheel 4 is subjected to external forces, the fixing of the handwheel 4 by the disc 51 can prevent the handwheel 4 from rotating easily, thus preventing changes in the flow and opening of the fluid in the three-way ball valve. Then, rotating the operating block 65 drives the threaded pin 63 to rotate, so that one end of the threaded pin 63 abuts against the silicone strip 64 on one side of the rectangular rod 62, which can fix the disc 51 and the rectangular rod 62, thus preventing the disc 51 from easily shifting.

Claims

1. A three-way ball valve comprising a three-way valve body (1), characterized in that: The three-way valve body (1) is welded with internal thread sleeve (2) at three ends, the inner wall of the three-way valve body (1) is rotatably installed with valve stem (3), one end of the valve stem (3) is fixedly installed with hand wheel (4), the outer surface of the hand wheel (4) is provided with limiting device (5), the limiting device (5) is fixed by the abutment of the disc (51) and the bottom of the hand wheel (4).

2. A ball valve according to claim 1, wherein: The limiting device (5) comprises a disc (51), the inner diameter of the disc (51) is greater than the outer diameter of the hand wheel (4) and is arranged at the bottom of the hand wheel (4), the disc (51) is sleeved on the outer surface of the valve stem (3), the outer surface of the disc (51) is symmetrically fixedly installed with a circular hole block (52), the bottom of the circular hole block (52) is installed with a spring (53), one end of the spring (53) is fixedly installed on the outer surface of the three-way valve body (1).

3. A three-way ball valve according to claim 2, characterized in that: The inner wall of the spring (53) is inserted with a round rod (54), one end of the round rod (54) is fixedly installed on the outer surface of the three-way valve body (1), the circular hole block (52) is slidably installed on the outer surface of the round rod (54).

4. A three-way ball valve according to claim 2, characterized in that: The bottom of the inner wall of the disc (51) is bonded with a rubber ring (55), and the top of the rubber ring (55) is provided with an annular groove.

5. A three-way ball valve according to claim 2, characterized in that: The top of the disc (51) is uniformly fixedly installed with four rubber blocks (56), and the vertical cross section of the rubber block (56) is triangular.

6. A three-way ball valve according to claim 2, characterized in that: A fixing assembly (6) is arranged between the disc (51) and the three-way valve body (1), the fixing assembly (6) comprises a sliding sleeve (61), the sliding sleeve (61) is fixedly installed on the outer surface of the disc (51), the inner wall of the sliding sleeve (61) is slidably installed with a rectangular rod (62), one end of the rectangular rod (62) is fixedly installed on the top of the three-way valve body (1), and the sliding sleeve (61) is provided with a threaded pin (63) on one side.

7. A three-way ball valve according to claim 6, characterized in that: The inner wall of one side of the rectangular rod (62) is bonded with a silica gel strip (64), and the threaded pin (63) is arranged on one side of the silica gel strip (64).

8. A three-way ball valve according to claim 7, characterized in that: One end of the threaded pin (63) is fixedly installed with an operating block (65), and the outer surface of the operating block (65) is provided with a protrusion.

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