Leakage-proof ball valve

Abstract

The utility model provides an anti-leakage ball valve, relates to the technical field of ball valve anti-leakage auxiliary devices, and aims to solve the problems that the sealing effect between a valve core and a valve body of an existing ball valve is poor, local leakage is prone to occurring at the joint of the valve core and the valve body after the ball valve is used for a long time, and the service life of the ball valve is affected. The valve body is made of corrosion-resistant materials, a water inlet is formed in the left end of the valve body, a water outlet is formed in the right end of the valve body, a valve element is rotatably connected into the valve body and is of a sphere-like structure with the middle portion penetrating through, a working block is installed on the top of the valve body, a rotating shaft is fixedly connected to the top of the valve element, and a valve rod is installed on the rotating shaft. The rotating shaft is arranged in a working block in a penetrating mode, a motor is installed on the top of the working block, a rotor is rotatably connected in the motor, the rotating shaft is communicated with the rotor, and sealing rings are fixedly connected to the positions, located on the valve body, of the two sides of the valve element.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-leakage auxiliary devices for ball valves, in particular to an anti-leakage ball valve. Background Art

[0002] A ball valve controls fluid flow by utilizing the sealing effect between a spherical closing element (the ball) and a valve seat. It primarily consists of a valve body, ball, valve seat, valve stem, and actuating mechanism (such as a handle or electric actuator). Rotating the valve stem rotates the ball 90 degrees, changing the shape of the passageway within the valve body and controlling the flow of fluid. When the ball valve is closed, the ball's through-hole is perpendicular to the flow direction, and the valve seat presses against the ball, forming a seal and blocking the flow. When the ball valve is open, the ball rotates until the through-hole aligns with the flow direction, allowing fluid to flow smoothly.

[0003] The sealing effect between the valve core and the valve body of the existing ball valve is poor. After long-term use, local leakage is prone to occur at the joint between the valve core and the valve body, which affects the service life of the ball valve. Therefore, it is particularly important to design a leakage-proof ball valve to solve the above technical problems. Utility Model Content

[0004] The utility model aims to solve the problem that the sealing effect between the valve core and the valve body of the existing ball valve is poor, and local leakage is prone to occur at the joint between the valve core and the valve body after long-term use, which shortens the service life of the ball valve, and proposes a leakage-proof ball valve.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a leakage-proof ball valve, comprising a valve body, the valve body is made of corrosion-resistant material, the left end of the valve body is a water inlet, the right end of the valve body is a water outlet, a valve core is rotatably connected to the valve body, the valve core is a spherical structure with a through middle, a working block is installed on the top of the valve body, the top of the valve core is fixedly connected to a rotating shaft, the rotating shaft is passed through the working block, a motor is installed on the top of the working block, a rotor is rotatably connected to the motor, the rotating shaft is communicated with the rotor, and sealing rings are fixedly connected to the valve body on both sides of the valve core.

[0006] Preferably, a sealing block is installed on the inner wall of the valve body on the left side of the valve core. The sealing block is made of multiple layers of high-sealing material. The cross-section of the sealing block is arc-shaped. The sealing block is installed on the valve body by bolts.

[0007] Preferably, the abutment position between the bolt and the valve body is sealed.

[0008] Preferably, the valve body is movably connected to a partition at the right side of the valve core, and the abutment position between the partition and the valve body is sealed.

[0009] Preferably, an oil cylinder is fixedly connected to the valve body, a sliding rod is slidably provided in the oil cylinder, and the sliding rod is fixedly connected to the partition through a connecting rod.

[0010] Preferably, a high-hardness plate is embedded inside the partition.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] 1. In the present invention, during use, a sealing block structure is provided on the left side of the valve core to form a second layer of sealing protection for the left side of the valve core, and a slidable partition structure is provided on the right side of the valve core to complete the sealing and blocking work of the valve body on the valve core, and the oil cylinder drives the sliding rod in conjunction with the connecting rod to drive the partition to block the valve body, thereby completing the relative sealing work on the right side of the valve core. Compared with the conventional ball valve sealing assembly, the technical solution adopted by the present invention can reduce the probability of ball valve leakage, and directly install the sealing auxiliary assembly inside the valve body to optimize the existing working space. Compared with the conventional ball valve, the sealing effect is greatly improved, the overall structure is compact, and it is easy for the staff to install and maintain, which reduces the later maintenance cost, and solves the problem that the sealing effect between the valve core and the valve body of the existing ball valve is poor, and local leakage is prone to occur at the joint between the valve core and the valve body after long-term use, which affects the service life of the ball valve.

[0013] 2. In the present utility model, during use, the staff drives the oil cylinder to start working, driving the sliding rod to cooperate with the partition on the connecting rod to move toward the valve body until the partition abuts against the valve body, completing the sealing work of the partition in the valve body. A high-hardness plate structure is embedded in the partition, which greatly improves the overall strength of the partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall diagram of the anti-leakage ball valve of the utility model;

[0015] Legend: 1. Valve body; 101. Water inlet; 102. Water outlet; 2. Valve core; 3. Working block; 301. Rotating shaft; 302. Motor; 303. Rotor; 304. Sealing ring; 4. Sealing block; 401. Bolt; 5. Partition; 501. Oil cylinder; 502. Sliding rod; 503. Connecting rod; 504. High-hardness plate. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] The utility model provides a leak-proof ball valve, including a valve body 1, which is made of corrosion-resistant material. The left end of the valve body 1 is a water inlet 101, and the right end of the valve body 1 is a water outlet 102. A valve core 2 is rotatably connected to the valve body 1, and the valve core 2 is a spherical structure with a through middle. A working block 3 is installed on the top of the valve body 1, and a rotating shaft 301 is fixedly connected to the top of the valve core 2. The rotating shaft 301 is arranged in the working block 3, and a motor 3 is installed on the top of the working block 3. 02, the motor 302 is rotatably connected to a rotor 303, the rotating shaft 301 is in communication with the rotor 303, and sealing rings 304 are fixedly connected to the valve body 1 on both sides of the valve core 2. A sealing block 4 is installed on the inner wall of the valve body 1 on the left side of the valve core 2. The sealing block 4 is made of multiple layers of high-sealing material, and the cross-section of the sealing block 4 is arc-shaped. The sealing block 4 is installed on the valve body 1 by bolts 401, and the bolts 401 are sealed at the abutment position with the valve body 1;

[0019] When the anti-leakage ball valve is actually used, water enters the valve body 1 from the water inlet 101. At this time, the valve core 2 is in a flowing state, and the partition 5 is also in an inoperative state. The gap formed between the partition 5 and the valve body 1 satisfies the water flow out from the water outlet 102. When the valve body 1 needs to be closed and sealed, the motor 302 first drives the rotor 303 to drive the valve core 2 on the rotating shaft 301 to rotate in the valve body 1, completing the sealing work of the valve body 1, so that water cannot flow from the valve core 2 to the right side of the valve core 2. Then the staff drives the oil cylinder 501 to start working, driving the sliding rod 502 to cooperate with the partition 5 on the connecting rod 503 to move toward the valve body 1 until the partition 5 abuts against the valve body 1, completing the sealing work of the partition 5 in the valve body 1. At this time, a sealing block 4 structure is provided on the left side of the valve core 2, and a sealing block 4 structure is also provided on the left side of the sealing ring 304. A second sealing protection structure is formed at the joint of the valve core 2, ensuring good relative sealing at the joint between the valve body 1 and the valve core 2. A sealing block 4 structure is set on the left side of the valve core 2 to form a second layer of sealing protection at the left side of the valve core 2. A sliding partition 5 structure is set on the right side of the valve core 2 to complete the sealing and blocking work of the valve body 1 at the valve core 2. The oil cylinder 501 drives the slide rod 502 to cooperate with the connecting rod 503 to drive the partition 5 to block the valve body 1, completing the relative sealing work on the right side of the valve core 2. Compared with the conventional ball valve sealing assembly, the technical solution adopted by the utility model can reduce the probability of ball valve leakage, and the sealing auxiliary assembly is directly installed inside the valve body 1, optimizing the existing working space. Compared with the conventional ball valve, the sealing effect is greatly improved, the overall structure is compact, and it is easy for the staff to install and maintain, reducing the later maintenance cost.

[0020] Example 1

[0021] like Figure 1 As shown, the valve body 1 is movably connected to a partition 5 at the right side of the valve core 2. The abutment position between the partition 5 and the valve body 1 is sealed. The valve body 1 is fixedly connected to an oil cylinder 501. A slide rod 502 is slidably provided in the oil cylinder 501. The slide rod 502 is fixedly connected to the partition 5 through a connecting rod 503. A high-hardness plate 504 is embedded in the interior of the partition 5.

[0022] The effect achieved by the entire embodiment 1 is that, during use, the staff drives the oil cylinder 501 to start working, drives the slide rod 502 to cooperate with the partition 5 on the connecting rod 503 to move toward the valve body 1 until the partition 5 abuts against the valve body 1, completing the sealing work of the partition 5 in the valve body 1. A high-hardness plate 504 structure is embedded in the partition 5, which greatly improves the overall strength of the partition 5.

[0023] Working principle: Water enters the valve body from the water inlet. At this time, the valve core is in a flow state and the partition is also in a non-working state. The gap formed between the partition and the valve body satisfies the water flow out from the water outlet position. When the valve body needs to be closed and sealed, the motor first drives the rotor to drive the valve core on the rotating shaft to rotate in the valve body to complete the sealing work of the valve body, so that water cannot flow from the valve core position to the right side of the valve core. Then the staff drives the oil cylinder to start working, driving the sliding rod to cooperate with the partition on the connecting rod to move toward the valve body until the partition abuts against the valve body, completing the sealing work of the partition in the valve body. At this time, a sealing block structure is provided on the left side of the valve core, and a sealing block structure is also provided on the left side of the sealing ring to form a second sealing protection structure for the valve core joint, ensuring the relative sealing of the valve body and the valve core joint.

Claims

1. A leak-proof ball valve, comprising a valve body (1), wherein the valve body (1) is made of corrosion-resistant material, the left end of the valve body (1) is a water inlet (101), and the right end of the valve body (1) is a water outlet (102), characterized in that: The valve body (1) is rotatably connected to a valve core (2), the valve core (2) is a spherical structure with a through middle portion, a working block (3) is installed on the top of the valve body (1), a rotating shaft (301) is fixedly connected to the top of the valve core (2), the rotating shaft (301) is arranged in the working block (3), a motor (302) is installed on the top of the working block (3), a rotor (303) is rotatably connected to the motor (302), the rotating shaft (301) is connected to the rotor (303), both sides of the valve core (2) are fixedly connected to the valve body (1), a sealing ring (304) is installed on the inner wall of the valve body (1) on the left side of the valve core (2), the sealing block (4) is made of multiple layers of high sealing material, the cross section of the sealing block (4) is arc-shaped, and the sealing block (4) is installed on the valve body (1) by bolts (401).

2. The anti-leakage ball valve according to claim 1, characterized in that: The abutment position between the bolt (401) and the valve body (1) is sealed.

3. The anti-leakage ball valve according to claim 1, characterized in that: The valve body (1) is movably connected to a partition (5) at a position on the right side of the valve core (2), and a sealing treatment is adopted at the abutting position between the partition (5) and the valve body (1).

4. The anti-leakage ball valve according to claim 3, characterized in that: An oil cylinder (501) is fixedly connected to the valve body (1), a sliding rod (502) is slidably provided in the oil cylinder (501), and the sliding rod (502) is fixedly connected to the partition (5) via a connecting rod (503).

5. The anti-leakage ball valve according to claim 3, characterized in that: A high-hardness plate (504) is embedded in the interior of the partition (5).

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