Three-way hard sealing ball valve

Abstract

The invention relates to the technical field of three-way valves, and discloses a three-way hard sealing ball valve which comprises a valve body, a connecting assembly and a ball body, two sets of side connecting pipes are arranged on the two sides of the valve body, the connecting assembly is arranged on the outer sides of the side connecting pipes, the connecting assembly comprises a connecting ring, a sealing ring and a connecting rod, the sealing ring is arranged on the inner side of the connecting ring in a surrounding mode, and the connecting rod is connected with the connecting ring. A driving motor is arranged at the top of the valve body, a ball is arranged in the valve body, stable pre-tightening force can be provided for the two ends of the ball of the three-way valve through a belleville spring, tight attachment between the ball and a valve seat is ensured, medium leakage is prevented, meanwhile, the sealing performance of the three-way valve can be improved through the pre-tightening force of the belleville spring, and the service life of the three-way valve is prolonged. The three-way valve is simple in structure, the sealing reliability can be ensured especially under the working conditions of high temperature, high pressure or frequent opening and closing, the belleville spring has good buffering and vibration absorbing capacity, impact force and vibration generated by medium flowing in the opening and closing process of the three-way valve can be absorbed and relieved, and a valve assembly is protected against damage.

Description

Technical Field

[0001] The invention relates to the technical field of three-way valves, in particular to a three-way hard-sealed ball valve. Background Art

[0002] The three-way hard-sealed ball valve is a key equipment widely used in the field of industrial fluid transportation and control. It is mainly used to change the flow direction of the fluid and realize the distribution and convergence of the fluid between different pipelines. In many industrial scenarios, such as petrochemical, natural gas transportation, electric power and other industries, precise control of the flow direction and on-off of the fluid is crucial. For example, in the petrochemical production process, various raw materials, intermediate products or finished products need to be transported to different reactors, storage tanks or processing equipment at different stages. This requires relying on a three-way hard-sealed ball valve to accurately guide the direction of the fluid. Moreover, in some processes that have extremely high requirements for fluid sealing, the hard sealing structure can effectively prevent fluid leakage, ensure production safety, and avoid pollution to the environment. Therefore, the three-way hard-sealed ball valve plays an indispensable role in ensuring the smooth, efficient and safe operation of the industrial production process.

[0003] However, the traditional three-way hard-sealed ball valve has some shortcomings that cannot be ignored. First, its sealing performance is poor. The single sealing structure used is prone to seal wear and aging when facing high temperature, high pressure or frequent opening and closing conditions, which leads to fluid leakage. This will not only cause waste of resources, but also may cause safety accidents. For example, when conveying flammable and explosive fluids, leakage may cause fire or even explosion. Secondly, the traditional ball valve is lacking in fluid control accuracy. Its driving method is often more complicated and not precise enough. It is difficult to accurately adjust the rotation angle of the ball according to actual production needs, so that the flow and direction of the fluid cannot be accurately controlled, affecting product quality and production efficiency. In addition, the installation and maintenance of the traditional three-way hard-sealed ball valve are more cumbersome. The complex connection structure makes the installation process time-consuming and labor-intensive, and the technical requirements for the installers are high. In addition, during the later maintenance, it is difficult to replace parts, which increases the downtime and maintenance costs of the equipment, and brings many inconveniences to the production and operation of the enterprise. In order to solve the above problems, we propose a three-way hard-sealed ball valve. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a three-way hard-sealed ball valve to solve the above-mentioned problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a three-way hard-sealed ball valve, comprising a valve body, a connecting assembly and a ball, two sets of side pipes are provided on both sides of the valve body, a connecting assembly is provided on the outside of the side pipe, the connecting assembly comprises a connecting ring, a sealing ring, and a connecting rod, a sealing ring is provided around the inner side of the connecting ring, a driving motor is provided on the top of the valve body, and a ball is provided inside the valve body.

[0006] Preferably, a main connection pipe is provided on the front surface of the valve body, and the output end of the main connection pipe extends into the valve body and contacts the sphere.

[0007] Preferably, a sealing groove is provided on one side of the inner wall of the side connection pipe, and a threaded groove is provided around the outer side of the inner wall of the side connection pipe away from the sealing groove.

[0008] Preferably, two groups of clamping grooves are provided at both ends of the outer side of the side connection pipe, and connecting grooves recessed inward are provided at both ends of one side of the side connection pipe.

[0009] Preferably, two groups of connecting rods are provided at both ends of one side of the connecting ring, and the connecting rods are adapted to the connecting grooves recessed inward at both ends of one side of the side connection pipe.

[0010] Preferably, the output end of the driving motor extends into the valve body, and the output end of the driving motor is connected to the sphere.

[0011] Preferably, two groups of disc springs are provided at both ends of the sphere, an arc-shaped through hole is provided inside the sphere, and a diversion groove is provided on the inner wall of the sphere.

[0012] Preferably, a through hole is provided inside the disc spring on the inner side of the disc spring at the top of the sphere, and the diameter of the through hole inside the disc spring is adapted to the diameter of the output end of the driving motor.

[0013] Preferably, two groups of clamping blocks are provided at both ends of the connecting ring, a spring member is provided inside one end of the clamping block, and the other end of the spring member is connected to the connecting ring.

[0014] Compared with the prior art, the present invention provides a three-way hard-sealed ball valve, which has the following beneficial effects:

[0015] 1. The disc springs can provide stable pre-tightening force at both ends of the sphere of the three-way valve, ensuring the tight fit between the sphere and the valve seat, preventing medium leakage. At the same time, the pre-tightening force of the disc springs can improve the sealing performance of the three-way valve. Especially under working conditions of high temperature, high pressure or frequent opening and closing, it can ensure the reliability of the seal. The disc springs have good buffer and shock absorption capabilities, can absorb and relieve the impact force and vibration generated by the medium flow during the opening and closing process of the three-way valve, protect the valve components from damage, effectively reduce the noise generated during the opening and closing process of the three-way valve, and improve the working environment. Secondly, the automatic adjustment function of the disc springs can compensate for the change in the sealing surface gap caused by temperature change or medium pressure fluctuation, reduce the friction and wear between the sphere and the valve seat, extend the service life of the valve, and the stiffness and elastic recovery force of the disc springs can ensure the stable operation state of the three-way valve during the opening and closing process, avoiding valve jamming or leakage caused by vibration or impact.

[0016] 2. This device adopts a multi - seal design. The sealing groove on the inner wall of the side connection pipe can be additionally installed with sealing components, forming a double - seal with the sealing ring surrounding the inner side of the connection ring. At the same time, the disc springs at both ends of the sphere continuously provide a pre - tightening force for the sphere, ensuring that the sphere fits tightly with the valve seat, further strengthening the seal. This all - round sealing design effectively solves the problem of unreliable sealing of traditional three - way valves. Even under extreme working conditions, it can greatly reduce the leakage risk, ensure the stable operation of the fluid transportation system, improve production safety and efficiency, and reduce maintenance costs and resource waste caused by leakage.

[0017] 3. The clamping grooves and connection grooves on the outer side of the side connection pipe of this device cooperate with the connecting rods and clamping blocks on the connection ring, realizing rapid positioning and firm connection, greatly simplifying the installation process. At the same time, the threaded grooves on the inner wall of the side connection pipe can be conveniently thread - connected with pipes of different diameters, enhancing the adaptability to various pipe systems. In addition, the components of this device have strong versatility, making maintenance or replacement more convenient and fast, reducing maintenance costs and downtime, improving the operation efficiency and reliability of the entire fluid transportation system, and being able to better meet the installation and use requirements of different industrial scenarios. Brief Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a schematic diagram of the present invention;

[0020] Figure 3 is a schematic diagram of the present invention;

[0021] Figure 4 is a schematic diagram of the present invention;

[0022] Figure 5 is a schematic diagram of the present invention;

[0023] Figure 6 is a schematic diagram of the present invention;

[0024] Figure 7 is a schematic diagram of the present invention;

[0025] Figure 8 is a schematic diagram of the present invention.

[0026] In the figure: 1. Valve body; 101. Main connection pipe; 2. Side connection pipe; 201. Sealing groove; 202. Threaded groove; 203. Clamping groove; 204. Connection groove; 3. Connection component; 301. Connection ring; 302. Sealing ring; 303. Connecting rod; 4. Driving motor; 5. Sphere; 501. Disc spring; 502. Flow - guiding groove; 6. Clamping block; 601. Spring part. Detailed Embodiments

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1-8 , a three-way hard-sealed ball valve, including a valve body 1, a connection assembly 3 and a ball 5. Two groups of side connection pipes 2 are provided on both sides of the valve body 1. A connection assembly 3 is provided on the outer side of the side connection pipe 2. The connection assembly 3 includes a connection ring 301, a sealing ring 302, and a connecting rod 303. A sealing ring 302 is provided around the inner side of the connection ring 301. A driving motor 4 is provided on the top of the valve body 1, and a ball 5 is provided inside the valve body 1.

[0029] Furthermore, a main connection pipe 101 is provided on the front of the valve body 1. The output end of the main connection pipe 101 extends into the valve body 1 and contacts the ball 5. The output end of the main connection pipe 101 extends into the valve body 1 and directly contacts the ball 5. This connection method constructs the most direct fluid channel. By cooperating with the ball 5 and according to the rotation angle of the ball, it guides the fluid to flow to different side connection pipes, realizing the control function of the three-way valve for the fluid direction. It is the basic connection for the entire valve to perform operations such as splitting and merging.

[0030] Furthermore, a sealing groove 201 is provided on one side of the inner wall of the side connection pipe 2. A thread groove 202 is provided around the outer side of the inner wall of the side connection pipe 2 away from the sealing groove 201. The sealing groove 201 on one side of the inner wall of the side connection pipe 2 can cooperate with an external pipeline for sealing, and at the same time form a double-sealing structure with the sealing ring 302 in the connection assembly 3, greatly enhancing the sealing effect. The thread groove 202 away from the sealing groove provides a standard interface for the side connection pipe to connect with other pipelines, which is convenient, fast, and has strong versatility. It can adapt to a variety of different pipe diameters and connection requirements. The sealing groove 201 ensures the sealing tightness between the side connection pipe and the connection assembly, effectively preventing fluid from leaking at the connection of the side connection pipe. The thread groove 202 enables the three-way valve to be easily connected to various pipeline systems and can be adapted during pipeline installation or the transformation of existing pipelines, improving the applicability and flexibility of the three-way valve in different engineering scenarios.

[0031] Further, two sets of card slots 203 are provided at both outer ends of the side connection pipe 2, and connection grooves 204 that are recessed inward are provided at both ends on one side of the side connection pipe 2. When the card slots 203 at both outer ends of the side connection pipe 2 cooperate with components such as the connection ring 301, rapid positioning and preliminary fixation can be achieved, improving the installation efficiency. The connection grooves 204 that are recessed inward at both ends on one side of the side connection pipe 2 are adapted to the connecting rods 303 on the connection ring 301. This concave-convex fitting connection method increases the connection stability, enabling the connection part to withstand a certain amount of tensile and compressive forces without easily separating. The card slots 203 and the connection grooves 204 together provide a reliable mechanical structure for the connection between the side connection pipe and the connection assembly 3. The installation process is simplified, ensuring that the connection assembly can be quickly and accurately positioned during installation, and ensuring that during the operation of the three-way valve, the side connection pipe and the connection assembly always maintain a tight connection, avoiding leakage or other failures caused by loosening.

[0032] Further, two sets of connecting rods 303 are provided at both ends on one side of the connection ring 301. The connecting rods 303 are adapted to the connection grooves 204 that are recessed inward at both ends on one side of the side connection pipe 2. The connecting rods 303 at both ends on one side of the connection ring 301 are adapted to the connection grooves 204 at both ends on one side of the side connection pipe 2. This connection method is not only convenient for installation, but also the tight fit between the connecting rod and the connection groove can effectively transmit force, ensuring that the connection between the connection ring and the side connection pipe remains stable and reliable when subjected to external forces such as fluid pressure. The cooperation between the connecting rods 303 and the connection grooves 204 realizes the reliable connection between the connection ring 301 and the side connection pipe 2, which is an important link in maintaining the overall structural integrity of the three-way valve. It enables the connection assembly to be firmly fixed on the side connection pipe, thereby ensuring that the sealing ring 302 plays a sealing role and ensuring that the fluid flows along the predetermined path in the valve body without leakage.

[0033] Further, the output end of the drive motor 4 extends into the valve body 1, and the output end of the drive motor 4 is connected to the sphere 5. The output end of the drive motor 4 directly extends into the valve body 1 and is connected to the sphere 5. This connection method reduces the intermediate transmission link, reduces energy loss and transmission error, can more accurately control the rotation angle of the sphere, and realizes the precise control of the fluid flow direction. The connection between the drive motor 4 and the sphere 5 realizes the automatic control ability of the three-way valve. By controlling the forward and reverse rotation and speed of the motor, the requirements for fluid on-off and flow direction switching in different technological processes are met, improving the operation convenience and control accuracy of the three-way valve.

[0034] Furthermore, two groups of disc springs 501 are provided at both ends of the sphere 5, an arc-shaped through hole is provided on the inner side of the sphere 5, and a guide groove 502 is provided on the inner wall of the sphere 5. The disc springs 501 arranged at both ends of the sphere 5, on the one hand, are in close contact with the sphere, and can adjust the preload force in real time according to the force and displacement of the sphere, so as to ensure the sealing effect between the sphere and the valve seat. The disc spring provides axial support for the sphere by indirectly cooperating with the internal structure of the valve body, thereby enhancing the stability of the sphere in the valve body. The disc spring 501 provides preload force and sealing assistance for the sphere 5, and ensures the sealing reliability between the sphere and the valve seat under complex working conditions such as high temperature, high pressure, and frequent opening and closing. At the same time, it can also buffer the impact force received by the sphere during rotation, protect the sphere and the valve seat from damage, extend the service life of the valve, and improve the adaptability of the three-way valve under different working conditions.

[0035] Furthermore, a through hole is provided inside the disc spring 501 at the top of the sphere 5, and the diameter of the through hole inside the disc spring 501 is adapted to the diameter of the output end of the drive motor 4. The through hole inside the disc spring 501 at the top of the sphere 5 is adapted to the diameter of the output end of the drive motor 4. This precise size matching ensures that when the output shaft of the drive motor passes through the disc spring through hole and connects with the sphere, the two can achieve a high coaxial connection, which not only makes the drive motor transmit the driving force of the sphere more stable, but also ensures that the preload force applied by the disc spring to the sphere is evenly distributed, avoiding poor sealing or spherical deflection caused by uneven force. The adaptive connection between the inner through hole of the disc spring 501 and the output end of the drive motor 4 optimizes the power transmission and sealing structure between the drive motor and the sphere. It not only ensures the stability and accuracy of the drive motor's control of the rotation of the sphere, but also enhances the sealing and buffering effect of the disc spring on the sphere.

[0036] Furthermore, two groups of blocks 6 are provided at both ends of the connecting ring 301, a spring member 601 is provided inside one end of the block 6, and the other end of the spring member 601 is connected to the connecting ring 301, the inner through hole of the disc spring 501 at the top of the sphere 5 is adapted to the diameter of the output end of the driving motor 4, and the blocks 6 at both ends of the connecting ring 301 are connected to the connecting ring through the inner spring member 601. This elastic connection mode enables the blocks to adapt to the surface conditions of the side pipe 2 and better clamp the side pipe. The spring member 601 can adjust the clamping force of the block within a certain range, which can not only ensure the tightness of the connection, but also prevent the side pipe surface from being damaged due to excessive clamping force. The block 6 and the spring member 601 work together to further enhance the firmness and reliability of the connection between the connecting ring 301 and the side pipe 2. When subjected to external forces such as fluid pressure and vibration, they can maintain the stability of the connection part, avoid loosening or displacement between the connecting ring and the side pipe, and ensure the sealing performance of the three-way valve and the stability of the overall structure.

[0037] Structure Description:

[0038] Valve body: The valve body is the main structure of the three-way hard-sealed ball valve. It provides space for the entire valve to accommodate internal components and guide fluid flow. Its design and structure determine the overall shape and layout of the valve. Two sets of side pipes are set on both sides, and a position for installing the drive motor is set on the top. The interior is used to install the ball. It is the basic framework that connects various components and ensures the normal operation of the valve.

[0039] Main pipe: The main pipe is located on the front of the valve body. It is the main channel for the fluid to enter the valve body. Its output end extends to the inside of the valve body and contacts the ball. It controls the initial flow direction of the fluid by cooperating with the ball. It determines how the fluid is distributed among different channels after entering the valve body. It is the key connection part to realize the diversion and confluence functions of the three-way valve.

[0040] Side pipe: The side pipe is arranged on both sides of the valve body. It is the channel for the fluid to flow out of the valve body. A sealing groove is provided on one side of the inner wall, and a threaded groove is surrounded on the outer side away from the sealing groove. There are card grooves at both ends of the outer side, and inwardly recessed connecting grooves at both ends of one side. These structures enable it to be connected to other pipes and cooperate with connecting components to achieve sealing and stable connection. In the entire valve system, it is responsible for transporting the fluid adjusted by the ball to the specified direction.

[0041] Sealing groove: The sealing groove is located on one side of the inner wall of the side pipe and is used to install additional sealing components. It works together with the sealing ring in the connecting assembly to form a double sealing structure, effectively preventing fluid leakage from the side pipe connection. It is one of the important structures to ensure the sealing performance of the valve.

[0042] Threaded groove: The threaded groove surrounds the inner wall of the side pipe away from the outer side of the sealing groove, providing a standard threaded interface for the connection between the side pipe and other pipes. Through the threaded connection, the three-way valve can be easily connected to pipeline systems of various diameters, enhancing the versatility and adaptability of the valve in different engineering scenarios.

[0043] Slots: The slots are located at both ends of the outer side of the side pipe. During the installation process, they can cooperate with the connecting ring and other components to achieve rapid positioning and preliminary fixation, simplifying the installation process of the connecting components and the side pipe, improving the installation efficiency, and ensuring that the connecting components can be quickly and accurately positioned during installation.

[0044] Connection groove: The connection groove is located at both ends of one side of the side pipe, and is concave inward. It is adapted to the connecting rods at both ends of one side of the connecting ring. The two form a concave-convex connection method, which increases the stability of the connection and enables the connection part to withstand a certain amount of tension and pressure, ensuring that during the operation of the valve, the side pipe and the connecting assembly always remain tightly connected.

[0045] Connection assembly: The connection assembly is a structural assembly that connects the side pipe with other components. It consists of a connecting ring, a sealing ring and a connecting rod. It is positioned by cooperating with the connecting groove of the side pipe through the connecting rod, and is sealed by the sealing ring on the inside of the connecting ring to ensure that the fluid does not leak from the side pipe connection. At the same time, it provides stability and sealing for the connection structure of the entire valve.

[0046] Connecting ring: The connecting ring is the main frame structure of the connecting assembly. Connecting rods and blocks are provided at both ends of one side. A sealing ring is provided around the inner side. The connecting rod cooperates with the connecting groove of the side pipe to fix the connecting assembly to the outside of the side pipe. At the same time, the sealing ring fits tightly with the side pipe to prevent fluid leakage. It is a key component of the connecting assembly to achieve the connection and sealing functions.

[0047] Sealing ring: The sealing ring is arranged around the inner side of the connecting ring. When the connecting ring is installed on the side pipe, the sealing ring is in close contact with the surface of the side pipe, filling any gaps that may exist, forming a barrier to prevent fluid leakage, and working together with the sealing groove on the inner wall of the side pipe, greatly enhancing the sealing performance of the valve connection.

[0048] Connecting rod: The connecting rod is set at both ends of one side of the connecting ring. Its shape and size are adapted to the connecting grooves at both ends of one side of the side pipe. During installation, the connecting rod is inserted into the connecting groove to achieve the initial positioning and connection of the connecting ring and the side pipe, laying the foundation for the stability of the subsequent connection. After the connection, it can effectively transmit force to ensure that the connecting ring and the side pipe are still tightly connected when subjected to external force.

[0049] Drive motor: The drive motor is installed on the top of the valve body, and its output end extends to the inside of the valve body and connects to the ball. It provides power for the rotation of the ball and controls the rotation angle of the ball through the operation of the motor, thereby achieving precise control of the flow direction of the fluid. It is the core power component that enables the three-way hard-sealed ball valve to achieve automatic control functions.

[0050] Ball: The ball is located inside the valve body and is a key component of the three-way hard-sealed ball valve to control the flow direction of the fluid. It is equipped with disc springs at both ends, an arc-shaped through hole on the inside, and a guide groove on the inner wall. The ball changes the relative position of its own arc-shaped through hole and each connecting pipe of the valve body by rotation, guiding the fluid to flow through different channels, realizing different conduction states of the three-way valve and accurately controlling the flow direction of the fluid.

[0051] Disc spring: Disc springs are set at both ends of the ball to provide pre-tightening force for the ball, ensure that the ball fits tightly against the valve seat, and enhance the sealing effect. Under high temperature, high pressure or frequent opening and closing conditions, the disc spring can automatically adjust the pre-tightening force to compensate for the changes in the sealing surface gap caused by temperature changes or medium pressure fluctuations. At the same time, it absorbs and alleviates the impact force on the ball during rotation, protects the ball and valve seat from damage, and extends the service life of the valve.

[0052] Guide groove: The guide groove is located on the inner wall of the sphere and cooperates with the arc-shaped through hole of the sphere to optimize the flow path of the fluid in the sphere. It can guide the fluid to pass through the sphere smoothly, reduce the resistance and energy loss of the fluid when flowing in the sphere, and enable the fluid to flow from one channel to another more efficiently and stably during the process of the sphere rotating and changing the flow direction.

[0053] Clamp block: The clamp block is installed at both ends of the connecting ring. A spring member is provided on the inner side of one end. Under the action of the spring member, the clamp block can further clamp the side pipe, enhance the stability of the connection between the connecting ring and the side pipe, prevent loosening or displacement between the connecting ring and the side pipe during the operation of the valve, and ensure the sealing performance of the valve and the stability of the overall structure.

[0054] Spring part: One end of the spring part is connected to the clamping block, and the other end is connected to the ring. It gives the clamping block a certain elasticity so that the clamping block can adapt to the surface conditions of the side pipe and better clamp the side pipe during installation. In addition, during the operation of the valve, the clamping force of the clamping block can be adjusted within a certain range, which can not only ensure the tightness of the connection, but also prevent damage to the side pipe surface due to excessive clamping force.

[0055] Working principle: the driving motor 4 is located at the top of the valve body 1, and its output end extends to the inside of the valve body 1 and is connected to the ball 5. When the driving motor 4 is started, the output shaft rotates to drive the ball 5 to rotate in the valve body 1. The ball 5 is the core component for controlling the flow direction of the fluid. An arc-shaped through hole is provided on the inner side of the ball 5, and a guide groove 502 is provided on the inner wall. As the ball 5 rotates, the relative position of the arc-shaped through hole and different pipes on the valve body 1 changes, thereby guiding the fluid to flow through different channels, realizing different conduction states of the three-way valve, and accurately controlling the flow direction of the fluid. The side pipe 2 is linked by the connecting component 3 to achieve the effect of sealing and stable connection. The connecting component 3 is located on the outside of the side pipe 2, and is composed of a connecting ring 301, a sealing ring 302 and a connecting rod 303. The connecting ring 301 is connected to the side pipe 2. The connecting rods 303 at both ends of the side are adapted to the connecting grooves 204 which are recessed inwardly at both ends of one side of the side pipe 2. During installation, the connecting rods 303 are inserted into the connecting grooves 204 to achieve the preliminary positioning of the connecting ring 301 and the side pipe 2. Two sets of clamping blocks 6 are also provided at both ends of the connecting ring 301. A spring member 601 is provided on the inner side of one end of the clamping block 6, and the other end of the spring member 601 is connected to the connecting ring 301. During installation, the clamping block 6 can further clamp the side pipe 2 under the action of the spring member 601 to enhance the stability of the connection. At the same time, the sealing ring 302 surrounding the inner side of the connecting ring 301 fits tightly with the side pipe 2, effectively preventing fluid leakage from the connecting part, ensuring the overall sealing of the three-way valve, and enhancing the sealing and resetting by linking the ball 5 with the disc spring 501. The two ends of the ball 5 are provided with two groups of disc springs 501. When the ball 5 rotates to adjust the flow direction of the fluid, the disc springs 501 can adapt to the movement of the ball 5 to a certain extent, and at the same time exert a certain pressure on the ball 5, so that the ball 5 and the sealing surface inside the valve body 1 are kept in close contact, and the sealing effect is further enhanced to prevent fluid leakage. In particular, a through hole is provided on the inner side of the disc spring 501 at the top of the ball 5, and the diameter of the through hole is adapted to the diameter of the output end of the drive motor 4. The output end of the drive motor 4 is connected to the ball 5 through the through hole. This structure not only ensures the stability of the drive motor 4 driving the ball 5, but also enables the disc spring 501 to more effectively exert axial pressure on the ball 5 to strengthen the sealing. In addition, when the drive motor 4 stops working, When the ball 5 needs to be reset, the elastic potential energy stored in the disc spring 501 can help the ball 5 return to its initial position, preparing for the next fluid flow control. The ball 5 is linked with the main pipe 101 and the side pipe 2 to achieve the effect of fluid delivery and distribution. The output end of the main pipe 101 on the front of the valve body 1 extends to the inside of the valve body 1 and contacts the ball 5. The side pipes 2 on both sides of the valve body 1 also cooperate with the ball 5. After the fluid enters the valve body 1 from the main pipe 101, according to the rotation angle of the ball 5, the fluid can flow to different side pipes 2 through the arc-shaped through hole and the guide groove 502 of the ball 5 to achieve fluid delivery and distribution. The sealing groove 201 and the threaded groove 202 of the side pipe 2 are linked with other components to achieve multiple sealing and convenient installation.The sealing groove 201 on one side of the inner wall of the side connection pipe 2 can be used to install additional sealing components such as sealing washers, etc. Together with the sealing ring 302 in the connection assembly 3, a multiple sealing structure is formed to further improve the sealing performance of the three-way valve and prevent fluid leakage. The thread groove 202 surrounding the outside of the inner wall of the side connection pipe 2 away from the sealing groove 201 can be used for threaded connection with other pipes or devices to achieve the convenient installation and connection of the three-way valve with the entire pipeline system and ensure the integrity of the fluid delivery system.

[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-way hard-sealed ball valve, comprising a valve body (1), a connection assembly (3) and a ball (5), characterized in that: Two groups of side pipes (2) are provided on both sides of the valve body (1); a connecting assembly (3) is provided on the outer side of the side pipe (2); the connecting assembly (3) comprises a connecting ring (301), a sealing ring (302), and a connecting rod (303); a sealing ring (302) is provided around the inner side of the connecting ring (301); a driving motor (4) is provided on the top of the valve body (1); and a ball (5) is provided inside the valve body (1).

2. The three-way hard-sealed ball valve according to claim 1, characterized in that: A main pipe (101) is provided on the front side of the valve body (1), and an output end of the main pipe (101) extends into the interior of the valve body (1) to contact the ball (5).

3. The three-way hard-sealed ball valve according to claim 1, characterized in that: A sealing groove (201) is provided on one side of the inner wall of the side pipe (2), and a threaded groove (202) is provided around the outer side of the inner wall of the side pipe (2) away from the sealing groove (201).

4. A three-way hard-sealed ball valve according to claim 1, characterized in that: Two groups of clamping grooves (203) are provided at two ends of the outer side of the side pipe (2), and inwardly recessed connecting grooves (204) are provided at two ends of one side of the side pipe (2).

5. The three-way hard-sealed ball valve according to claim 1, characterized in that: Two groups of connecting rods (303) are provided at both ends of one side of the connecting ring (301), and the connecting rods (303) are adapted to the inwardly recessed connecting grooves (204) provided at both ends of one side of the side pipe (2).

6. The three-way hard-sealed ball valve according to claim 1, characterized in that: The output end of the drive motor (4) extends to the interior of the valve body (1), and the output end of the drive motor (4) is connected to the ball (5).

7. A three-way hard-sealed ball valve according to claim 1, characterized in that: Two groups of disc springs (501) are provided at both ends of the sphere (5), an arc-shaped through hole is provided on the inner side of the sphere (5), and a guide groove (502) is provided on the inner wall of the sphere (5).

8. The three-way hard-sealed ball valve according to claim 7, wherein: A through hole is provided inside the disc spring (501) at the top of the sphere (5), and the diameter of the through hole inside the disc spring (501) is adapted to the diameter of the output end of the drive motor (4).

9. The three-way hard-sealed ball valve according to claim 5, characterized in that: Two groups of clamping blocks (6) are provided at both ends of the connecting ring (301), a spring member (601) is provided on the inner side of one end of the clamping block (6), and the other end of the spring member (601) is connected to the connecting ring (301).

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