Flow-adjustable all-welded ball valve

Abstract

The utility model discloses a flow-adjustable all-welded ball valve, which relates to the technical field of ball valves and comprises a valve body, connecting ends are arranged on two sides of the valve body, a ball body is rotatably arranged in the valve body, a through type circulating groove is arranged on one side of the ball body, and a connecting column is welded on the upper surface of the ball body. The outer surface of the connecting column is fixedly connected with a handle in a sleeved mode, penetrating type inserting grooves are symmetrically formed in the outer side of the connecting end, screw rods are inserted into the two corresponding inserting grooves in a threaded mode, and reinforcing blocks are symmetrically and fixedly arranged on the upper surface of the valve body. The multiple annularly-distributed threaded grooves are matched with the positioning studs, the handle can be accurately positioned at different flow adjusting positions, the situation that the ball rotates accidentally due to factors such as external force or vibration is prevented, the accuracy and stability of flow adjusting are ensured, an operator can conveniently conduct positioning operation through the design of the rotary knob, and the operation efficiency is improved. And the operation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically to a flow-adjustable fully welded ball valve. Background Technology

[0002] Ball valves are a common type of valve. They typically use a ball rotating around the valve stem axis to open and close the passage, thereby controlling the flow of fluid. The valve body of a fully welded ball valve is welded from steel pipe or steel plate. Compared with traditional cast or forged valve bodies, it has higher strength and sealing performance. The welded structure reduces the number of connection points in the valve body, eliminates potential leakage points, and improves the reliability of the valve.

[0003] However, existing technologies still have the following problems:

[0004] Most existing flow-adjustable fully welded ball valves have unstable positioning after adjustment. They rely solely on the operator's experience to judge the flow adjustment position, making it impossible to accurately position the flow under different flow settings. Once subjected to external impact or pipeline vibration, the ball is prone to rotation, resulting in unstable flow and making it difficult to meet the requirements of working conditions with high flow accuracy.

[0005] To address the aforementioned problems, the inventors proposed a flow-adjustable fully welded ball valve to solve them. Utility Model Content

[0006] To address the issue of unstable positioning after adjustment in flow-adjustable fully welded ball valves, the purpose of this invention is to provide a flow-adjustable fully welded ball valve.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: a flow-adjustable fully welded ball valve, including a valve body, connecting ends on both sides of the valve body, a ball rotatably disposed inside the valve body, and a through flow groove opened on one side of the ball, a connecting post welded to the upper surface of the ball, and a handle fixedly sleeved on the outer surface of the connecting post.

[0008] Preferably, the outer side of the connecting end is symmetrically provided with through slots, and two corresponding slots are threaded with screws. The upper surface of the valve body is symmetrically fixed with reinforcing blocks, and the upper screws are sleeved in the corresponding reinforcing blocks. The two sides of the valve body are symmetrically provided with slots, and the inner side of the connecting end is fixed with a chuck, which is engaged in the corresponding slot.

[0009] Preferably, a limiting block is fixedly provided on the upper surface of the valve body, a support block is fixedly provided on one side of the handle, a positioning stud is provided through the upper surface of the support block, and a knob is fixedly provided on the upper surface of the positioning stud. The limiting block and the upper surface of the valve body are jointly provided with threaded grooves for use with the positioning stud, and the positioning stud is threadedly inserted into the corresponding threaded groove. There are several threaded grooves, and the several threaded grooves are distributed in a ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention uses multiple annularly distributed threaded grooves in conjunction with positioning studs to accurately position the handle at different flow adjustment positions, preventing the ball from rotating unexpectedly due to external forces or vibrations, ensuring the accuracy and stability of flow adjustment. The knob design facilitates positioning operations for operators, improving operational convenience. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the valve body and an exploded view of the related structure of the ball in this utility model.

[0015] Figure 3 This is an exploded view of the connection structure between the connecting end and the valve body of this utility model.

[0016] In the diagram: 1. Valve body; 11. Slot; 2. Connecting end; 21. Threaded connecting pipe; 22. Slot; 23. Screw; 24. Reinforcing block; 25. Chuck; 3. Ball; 31. Flow groove; 32. Connecting post; 33. Handle; 34. Anti-slip sleeve; 4. Limiting block; 41. Support block; 42. Positioning stud; 43. Knob; 44. Threaded groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Figure 1-3 As shown, this utility model provides a flow-adjustable fully welded ball valve, including a valve body 1, connecting ends 2 on both sides of the valve body 1, a ball 3 rotatably mounted inside the valve body 1, and a through-flow groove 31 on one side of the ball 3. A connecting post 32 is welded to the upper surface of the ball 3, and a handle 33 is fixedly sleeved on the outer surface of the connecting post 32. An anti-slip sleeve 34 is sleeved on the outer surface of the handle 33. When the operator grips the anti-slip sleeve 34 on the handle 33, the anti-slip sleeve 34 increases the friction when the operator grips it, preventing operational errors due to slippage during operation and improving operational safety. Applying force causes the handle 33 to rotate around the connecting post 32. Because the connecting post 32 is welded to the ball 3, the handle 33... Rotation causes the ball 3 to rotate within the valve body 1. The ball 3 has a through-flow groove 31. As the ball 3 rotates, the alignment of the flow groove 31 with the pipes connected to the connecting ends 2 on both sides of the valve body 1 changes. When the flow groove 31 is completely aligned with the pipe, the cross-sectional area through which the fluid passes is at its maximum, and the flow rate reaches its maximum. When the ball 3 rotates a certain angle, the overlapping area between the flow groove 31 and the pipe decreases, the cross-sectional area through which the fluid passes becomes smaller, and the flow rate decreases accordingly, thus achieving flow rate regulation. By rotating the ball 3 to change the alignment of the flow groove 31 with the pipe, flexible adjustment of the fluid flow rate is achieved, meeting the precise flow control requirements under different working conditions. The operation is simple; flow rate adjustment can be completed simply by rotating the handle 33, making it convenient and quick.

[0019] A threaded connecting pipe 21 is fixedly provided on the outer side of the connecting end 2. Symmetrical through slots 22 are provided on the outer side of the connecting end 2, and screws 23 are threadedly inserted into the two corresponding slots 22. Reinforcing blocks 24 are symmetrically fixed on the upper surface of the valve body 1, and the upper screws 23 are fitted into the corresponding reinforcing blocks 24. Slots 11 are symmetrically provided on both sides of the valve body 1. A chuck 25 is fixedly provided on the inner side of the connecting end 2, and the chuck 25 is fitted into the corresponding slot 11. The connecting ends 2 on both sides of the valve body 1 are used to connect with pipes. The threaded connecting pipe 21 on the outer side of the connecting end 2 can be threadedly connected to an external pipe to achieve initial connection and fixation. Slots 22 are symmetrically provided on the outer side of the connecting end 2, and screws 23 are threadedly inserted into the corresponding slots 22. The upper screws 23 are fitted onto the valve body 1. Within the reinforcing block 24 on the surface, the connection stability between the connecting end 2 and the valve body 1 is further enhanced by tightening the screw 23. The valve body 1 has slots 11 on both sides, and the chuck 25 on the inner side of the connecting end 2 is engaged in the corresponding slot 11. This engagement structure can accurately position the relative position of the connecting end 2 and the valve body 1, while enhancing the sealing and stability of the connection. The dual connection method of the threaded connecting pipe 21 and the screw 23, as well as the engagement structure of the chuck 25 and the slot 11, greatly enhance the connection stability between the connecting end 2 and the valve body 1, effectively preventing loosening or leakage under fluid pressure, and ensuring the reliability of the valve during long-term use. The setting of the reinforcing block 24 further enhances the stability of the screw 23 connection and improves the strength of the entire connection structure.

[0020] A limiting block 4 is fixedly provided on the upper surface of the valve body 1, and a support block 41 is fixedly provided on one side of the handle 33. A positioning stud 42 is provided through the upper surface of the support block 41, and a knob 43 is fixedly provided on the upper surface of the positioning stud 42. The upper surfaces of the limiting block 4 and the valve body 1 are jointly provided with threaded grooves 44 that cooperate with the positioning stud 42. The positioning stud 42 is threaded into the corresponding threaded groove 44. There are several threaded grooves 44, and the several threaded grooves 44 are arranged in a ring. The positioning stud 42 is provided through the support block 41 on one side of the handle 33. After the position of the ball 3 is adjusted (i.e., the flow rate is adjusted), the operator rotates the knob 43 to make the positioning stud 42 screw downward into the threaded groove 44 jointly provided by the limiting block 4 and the upper surface of the valve body 1. Since there are several threaded grooves 44 and they are arranged in a ring, the appropriate threaded groove 44 can be selected for positioning according to the different rotation angles of the ball 3, and the handle 33 is fixed in the current position, thereby preventing the ball 3 from rotating accidentally and ensuring the stability of the flow rate adjustment.

[0021] Working principle: The operator holds the anti-slip sleeve 34 on the handle 33 and applies force to rotate the handle 33 around the connecting post 32. Since the connecting post 32 is welded to the ball 3, the rotation of the handle 33 will drive the ball 3 to rotate inside the valve body 1. The ball 3 has a through-type flow groove 31. As the ball 3 rotates, the alignment degree between the flow groove 31 and the pipes connected to the connecting ends 2 on both sides of the valve body 1 changes. When the flow groove 31 is completely aligned with the pipe, the cross-sectional area through which the fluid passes is the largest, and the flow rate reaches the maximum. When the ball 3 rotates a certain angle, the overlapping area between the flow groove 31 and the pipe decreases, the cross-sectional area through which the fluid passes becomes smaller, and the flow rate decreases accordingly, thereby achieving flow rate regulation.

[0022] The connecting ends 2 on both sides of the valve body 1 are used to connect with the pipeline. The threaded connecting pipe 21 on the outside of the connecting end 2 can be threaded to the external pipeline to achieve initial connection and fixation. The connecting end 2 has symmetrical slots 22 on the outside. The corresponding slots 22 have screws 23 threaded into them. The upper screw 23 is fitted into the reinforcing block 24 on the upper surface of the valve body 1. Tightening the screw 23 further enhances the connection stability between the connecting end 2 and the valve body 1. The valve body 1 has slots 11 on both sides. The chuck 25 on the inside of the connecting end 2 is engaged in the corresponding slots 11. This engagement structure can accurately position the relative position of the connecting end 2 and the valve body 1, while enhancing the sealing and stability of the connection.

[0023] A positioning stud 42 is provided through the support block 41 on one side of the handle 33. After the position of the ball 3 is adjusted (i.e. the flow rate is adjusted), the operator rotates the knob 43 to make the positioning stud 42 screw downward into the threaded groove 44 that is opened on the upper surface of the limit block 4 and the valve body 1. Since there are several threaded grooves 44 and they are arranged in a ring, the appropriate threaded groove 44 can be selected for positioning according to the different rotation angles of the ball 3, so as to fix the handle 33 in the current position, thereby preventing the ball 3 from rotating accidentally and ensuring the stability of the flow rate adjustment.

[0024] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A flow adjustable full welded ball valve comprising a valve body (1), characterized in that: Both sides of the valve body (1) are equipped with connecting ends (2), the valve body (1) is equipped with a ball (3) rotating inside, one side of the ball (3) is equipped with a through type flow channel (31), the upper surface of the ball (3) is welded with a connecting column (32), the outer surface of the connecting column (32) is fixedly sleeved with a handle (33).

2. The flow-adjustable all-welded ball valve according to claim 1, characterized in that: The outer side of the connecting end (2) is symmetrically equipped with a through type insertion slot (22), and two corresponding insertion slots (22) are screwedly equipped with a screw rod (23).

3. The flow-adjustable all-welded ball valve according to claim 1, characterized in that: The upper surface of the valve body (1) is fixedly equipped with a limiting block (4), one side of the handle (33) is fixedly equipped with a supporting block (41), the upper surface of the supporting block (41) is equipped with a positioning stud (42), and the upper surface of the positioning stud (42) is fixedly equipped with a knob (43), the upper surface of the limiting block (4) and the valve body (1) are symmetrically equipped with a threaded groove (44) used in cooperation with the positioning stud (42), and the positioning stud (42) is screwedly inserted into the corresponding threaded groove (44).

4. The full-welded ball valve with adjustable flow according to claim 1, characterized in that: The outer surface of the handle (33) is sleeved with an anti-skid sleeve (34).

5. The full-welded ball valve with adjustable flow according to claim 3, characterized in that: The threaded groove (44) is equipped with a plurality of threaded grooves (44), and the plurality of threaded grooves (44) are annularly distributed.

6. The full-welded ball valve with adjustable flow according to claim 2, characterized in that: The upper surface of the valve body (1) is symmetrically fixedly equipped with a reinforcing block (24), and the upper screw rod (23) is sleeved in the corresponding reinforcing block (24).

7. The full-welded ball valve with adjustable flow according to claim 2, characterized in that: The outer side of the connecting end (2) is fixedly equipped with a threaded connecting pipe (21).

8. The full-welded ball valve with adjustable flow according to claim 2, characterized in that: The outer side of the connecting end (2) is fixedly equipped with a threaded connecting pipe (21). Both sides of the valve body (1) are symmetrically equipped with clamping grooves (11), the inner side of the connecting end (2) is fixedly equipped with a chuck (25), and the chuck (25) is clamped in the corresponding clamping groove (11).

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