Wear-resistant V-shaped sampling ball valve

Abstract

The utility model discloses a wear-resistant V-shaped sampling ball valve, and belongs to the technical field of sampling valves. Comprising a valve body, a ball valve element is arranged in the valve body, a valve rod for controlling the ball valve element to rotate is fixedly connected to the ball valve element, a stop rod is fixedly connected to the outer surface of the valve rod, a dial is fixedly connected to the valve body, and a limiting pipe is arranged on the outer surface of the dial in the circumferential direction; the two ends of the limiting pipe are fixedly connected with the dial through connecting blocks, the end, away from the dial, of each connecting block is fixedly connected with the limiting pipe, and the outer surface of each limiting pipe is sleeved with a sleeve. The ball valve does not need to be adjusted back and forth to control the liquid outlet amount, so that the adjustment is more accurate, the liquid outlet amount is prevented from being suddenly large and suddenly small, the probability of solution splashing during sampling is reduced, and the safety of workers is protected.

Description

Technical Field

[0001] This utility model relates to a wear-resistant V-type sampling ball valve, belonging to the field of sampling valve technology. Background Technology

[0002] Wear-resistant V-shaped ball valves are characterized by high wear resistance, low fluid resistance, rapid switching, reliable stem sealing, smooth and flat passage, and low media deposition, making them suitable for sample collection.

[0003] When sampling the inside of a solvent tank, a sampling ball valve needs to be installed at the outlet. By opening and closing the ball valve, the material inside the solvent tank can be discharged, allowing for sampling. During sampling, the operator can adjust the opening of the ball valve according to the sample volume. Currently, when adjusting the opening of the ball valve, the user directly turns the valve stem to control the rotation of the ball valve. If the liquid output of the ball valve is large, the operator then turns the ball valve in the opposite direction to reduce the liquid output, resulting in inaccurate adjustment. Furthermore, the liquid output fluctuates during adjustment, and the flow rate is unstable, which can easily cause solution splashing during sampling. Therefore, we propose a wear-resistant V-type sampling ball valve. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a wear-resistant V-type sampling ball valve, which solves the problem in the prior art where, when adjusting the opening amount of the ball valve, the user directly turns the valve stem to control the rotation of the ball valve. If the liquid output of the ball valve is large, the operator then turns the ball valve in the opposite direction to reduce the liquid output, resulting in inaccurate adjustment. Furthermore, during adjustment, the liquid output fluctuates and the flow rate is unstable, which easily causes solution splashing during sampling.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0006] A wear-resistant V-type sampling ball valve includes a valve body, a ball valve core inside the valve body, a valve stem fixedly connected to the ball valve core for controlling the rotation of the ball valve core, a stop rod fixedly connected to the outer surface of the valve stem, a scale fixedly connected to the valve body, a limit tube provided along the circumferential direction on the outer surface of the scale, both ends of the limit tube being fixedly connected to the scale via connecting blocks, the end of the connecting block away from the scale being fixedly connected to the limit tube, a sleeve fitted onto the outer surface of the limit tube, an indicator rod fixedly connected to the upper surface of the sleeve, a limit groove being formed on the indicator rod, and a locking component provided inside the sleeve for limiting the position of the sleeve.

[0007] By adopting the above technical solution, during sampling, the operator can first release the locking of the sleeve, allowing it to slide on the limiting tube. The indicator rod can be adjusted to the corresponding position of the required ball valve opening flow rate. Then, the locking assembly is used to lock the position of the sleeve, ensuring that the sleeve is fixed on the limiting tube. Then, the operator rotates the valve stem. During the rotation of the valve stem, the stop bar on the surface of the valve stem can rotate into the limiting groove. The stop bar is then blocked by the indicator rod, stopping the stop bar and allowing the ball valve to open directly to the pre-set rotation angle. There is no need to adjust the ball valve back and forth to control the liquid output, making the adjustment more precise, avoiding sudden changes in the liquid output, reducing the probability of solution splashing during sampling, and protecting the safety of the operator.

[0008] The present invention is further configured such that: the locking assembly includes a locking post threadedly connected inside the sleeve, the outer surface of the locking post is provided with external threads, and a locking handle is fixedly connected to the end of the locking post away from the limiting tube.

[0009] By adopting the above technical solution, when locking the sleeve, the operator can turn the locking handle to control the locking pin to rotate until the end of the locking pin near the limit tube abuts against the surface of the limit tube, which can make the sleeve more securely fixed on the limit tube.

[0010] The present invention is further characterized by having scale bars on the dial.

[0011] By adopting the above technical solution, staff can easily adjust the indicator rod to the required position according to the prompts on the scale bar, and the adjustment accuracy is higher. The indicator rod can be adjusted more quickly.

[0012] The present invention is further configured such that a handle rod is fixedly connected to the top end of the valve stem.

[0013] By adopting the above technical solution, the handle is fixedly connected to the top of the valve stem. When the operator needs to control the valve stem to rotate, the handle can be turned to control the valve stem to rotate when opening the ball valve, which is more labor-saving.

[0014] The present invention is further configured such that: a support rod is fixedly connected to the outer surface of the valve body, and a storage bucket is fixedly connected to the end of the support rod away from the valve body.

[0015] The present invention is further configured such that: a tray is slidably connected inside the placement bucket, a limiting block is fixedly connected to the outer surface of the tray, a limiting hole is vertically opened on the outer surface of the placement bucket, and the end of the limiting block away from the tray passes through the limiting hole and extends to the outside of the placement bucket.

[0016] The present invention is further configured such that: a mounting base is fixedly connected to the side of the pallet facing the ground, a threaded rod is rotatably connected inside the mounting base, the threaded rod is threadedly connected to the inside of the placing bucket, and a handle is fixedly connected to the end of the threaded rod away from the pallet.

[0017] By adopting the above technical solution, when sampling is required, the sampling cylinder can be placed inside the placement container. The operator can rotate the handle, which will cause the threaded rod to rotate, thus pushing the tray upward. Since the limiting hole can limit the limiting block, it ensures that the tray does not shift position during movement, making the movement more stable. The sampling cylinder can be controlled to move closer to the outlet of the sampling ball valve, reducing the height between the sampling cylinder and the ball valve. This reduces liquid splashing during sampling, and the operator does not need to hold the sampling cylinder during sampling, effectively avoiding contact between the solution and the operator's hands, making sampling safer.

[0018] The beneficial effects of this utility model are as follows: When sampling, the operator can first release the locking of the sleeve, allowing it to slide on the limiting tube. The indicator rod can be adjusted to the corresponding position of the required ball valve opening flow rate. Then, the locking assembly is used to lock the position of the sleeve, ensuring that the sleeve is fixed on the limiting tube. Then, the operator rotates the valve stem. During the rotation of the valve stem, the stop bar on the surface of the valve stem can rotate into the limiting groove. The stop bar is then blocked by the indicator rod, stopping the stop bar and allowing the ball valve to open directly to the pre-set rotation angle. There is no need to adjust the ball valve back and forth to control the liquid output, making the adjustment more precise, avoiding sudden changes in the liquid output, reducing the probability of solution splashing during sampling, and protecting the safety of the operator. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the left axonometric structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the rear-view axonometric structure of this utility model;

[0022] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This utility model Figure 1 Enlarged structural diagram at point C;

[0024] Figure 6 This utility model Figure 3 Enlarged structural diagram at point B.

[0025] In the diagram: 1. Valve body; 2. Valve stem; 3. Stop rod; 4. Dial; 5. Limit tube; 6. Sleeve; 7. Indicator rod; 8. Limit groove; 9. Locking handle; 10. Scale bar; 11. Handle rod; 12. Support rod; 13. Placement bucket; 14. Support plate; 15. Limit block; 16. Limit hole; 17. Mounting base; 18. Threaded rod; 19. Handle disc; 20. Connecting block; 21. Locking pin. Detailed Implementation

[0026] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this utility model, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0027] Example 1

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, a wear-resistant V-type sampling ball valve includes a valve body 1, which is connected to the outlet of a solvent tank via a flange, and a sealing ring is provided at the connection. A ball valve core is installed inside the valve body 1, and a valve stem 2 is fixedly connected to the ball valve core to control its rotation. The ball valve core has a V-shaped notch; the V-shaped opening design allows for a large medium flow area and low resistance when the valve is open, enabling high-flow-rate sampling. The valve body 1, ball valve core, and valve stem 2 can be made of stainless steel to improve their hardness and enhance their wear resistance. A stop rod 3 is fixedly connected to the outer surface of the valve stem 2, and a stop rod 3 is fixedly connected to the valve body 1. The device includes a dial 4, with a limiting tube 5 arranged circumferentially on the outer surface of the dial 4. The two ends of the limiting tube 5 are fixedly connected to the dial 4 via connecting blocks 20. The end of the connecting block 20 away from the dial 4 is fixedly connected to the limiting tube 5. A sleeve 6 is fitted onto the outer surface of the limiting tube 5. An indicator rod 7 is fixedly connected to the upper surface of the sleeve 6. A limiting groove 8 is formed on the indicator rod 7. The thickness of the indicator rod 7 is less than the height of the limiting groove 8, so that the indicator rod 7 can be inserted into the limiting groove 8 during rotation. A locking component is provided inside the sleeve 6 to limit the position of the sleeve 6.

[0029] like Figure 5 As shown, the locking assembly includes a locking pin 21 threaded inside the sleeve 6. The outer surface of the locking pin 21 is provided with external threads, and a locking handle 9 is fixedly connected to the end of the locking pin 21 away from the limiting tube 5.

[0030] like Figure 3 and Figure 6As shown, a support rod 12 is fixedly connected to the outer surface of the valve body 1. A placement bucket 13 is fixedly connected to the end of the support rod 12 away from the valve body 1. A support plate 14 is slidably connected inside the placement bucket 13. A limit block 15 is fixedly connected to the outer surface of the support plate 14. A limit hole 16 is vertically opened on the outer surface of the placement bucket 13. The end of the limit block 15 away from the support plate 14 passes through the limit hole 16 and extends to the outside of the placement bucket 13. A mounting base 17 is fixedly connected to the side of the support plate 14 facing the ground. A threaded rod 18 is rotatably connected inside the mounting base 17. The top end of the threaded rod 18 is mounted inside the mounting base 17 through a bearing. When the threaded rod 18 rotates, it can drive the inner ring of the bearing to rotate, so that the support plate 14 does not rotate. The support plate 14 can be moved by pushing the threaded rod 18 during the rotation of the threaded rod 18. The threaded rod 18 is threadedly connected to the inside of the placement bucket 13, and a handle disc 19 is fixedly connected to the end of the threaded rod 18 away from the support plate 14.

[0031] During sampling, the operator can first release the locking of the sleeve 6, allowing it to slide on the limiting tube 5. The indicator rod 7 can then be adjusted to the position corresponding to the required ball valve opening flow rate. The locking assembly is then used to lock the sleeve 6 in place, ensuring its fixed position on the limiting tube 5. The operator then rotates the valve stem 2. During this rotation, the stop bar 3 on the surface of the valve stem 2 rotates into the limiting groove 8, where it is blocked by the indicator rod 7, stopping the stop bar 3. This allows the ball valve to open directly to the pre-set rotation angle, eliminating the need for repeated adjustments to control the liquid output. This results in more precise control, preventing sudden fluctuations in the liquid output, reducing the probability of solution splashing during sampling, and protecting the operator's safety.

[0032] When locking the sleeve 6, the operator can turn the locking handle 9 to control the locking pin 21 to rotate until the end of the locking pin 21 near the limit tube 5 abuts against the surface of the limit tube 5, which will make the sleeve 6 more securely fixed on the limit tube 5.

[0033] The operator can easily adjust the indicator rod 7 to the required position according to the prompts on the scale bar 10, and the adjustment accuracy is higher. The indicator rod 7 can be adjusted more quickly. The handle rod 11 is fixedly connected to the top of the valve rod 2. When the operator needs to control the rotation of the valve rod 2, the handle rod 11 can be turned to control the rotation of the valve rod 2, making it easier to open the ball valve.

[0034] When sampling is required, the sampling tube can be placed inside the placement container 13. The operator can rotate the handle 19, which will cause the threaded rod 18 to rotate, thus pushing the tray 14 upward. Since the limiting hole 16 can limit the limiting block 15, it ensures that the tray 14 does not shift position when moving, making the movement more stable. The sampling tube can be controlled to move closer to the outlet of the sampling ball valve, reducing the height between the sampling tube and the ball valve. This reduces liquid splashing during sampling, and the operator does not need to hold the sampling tube during sampling, effectively avoiding contact between the solution and the operator's hands, making sampling safer.

[0035] When sampling is required, the operator can place the sampling cylinder into the placement bucket 13. The operator can rotate the handle 19, which will rotate the threaded rod 18, thus pushing the support plate 14 upward. This controls the sampling cylinder to move closer to the outlet of the sampling ball valve. Then, according to the required flow rate of the ball valve, the operator can turn the locking handle 9 to separate the locking pin 21 from the limiting tube 5, releasing the fixation on the sleeve 6 and allowing the sleeve 6 to slide on the limiting tube 5. The indicator rod 7 can be adjusted to the corresponding position of the required ball valve opening flow rate. Then, the locking handle 9 is turned to fix the position of the sleeve 6. The operator rotates the valve stem 2. During the rotation of the valve stem 2, the stop bar 3 on the surface of the valve stem 2 can rotate into the limiting groove 8. The stop bar 3 is blocked by the indicator rod 7, which can stop the stop bar 3 and allow the ball valve to open directly to the pre-set rotation angle.

[0036] After sampling is completed, the staff closes the ball valve and can rotate the handle 19 to control the threaded rod 18 to rotate, moving the tray 14 downwards. This widens the distance between the sampling tube and the sampling ball valve, allowing the staff to directly remove the sampling tube from inside the placement bucket 13.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant V-type sampling ball valve, comprising a valve body (1), a ball valve core is arranged inside the valve body (1), and a valve rod (2) for controlling rotation of the ball valve core is fixedly connected to the ball valve core, characterized in that: The outer surface of the valve rod (2) is fixedly connected with a blocking rod (3), the valve body (1) is fixedly connected with a scale disc (4), the outer surface of the scale disc (4) is provided with a limiting tube (5) in the circumferential direction, the two ends of the limiting tube (5) are fixedly connected with the scale disc (4) through a connecting block (20), the end of the connecting block (20) away from the scale disc (4) is fixedly connected with the limiting tube (5), the outer surface of the limiting tube (5) is sleeved with a sleeve (6), the upper surface of the sleeve (6) is fixedly connected with an indicating rod (7), the indicating rod (7) is provided with a limiting groove (8), and the inside of the sleeve (6) is provided with a locking assembly capable of limiting the position of the sleeve (6).

2. A wear resistant V-port sampling ball valve according to claim 1, characterized in that: The locking assembly comprises a locking column (21) screwed in the inside of the sleeve (6), the outer surface of the locking column (21) is provided with external threads, and the end of the locking column (21) away from the limiting tube (5) is fixedly connected with a locking handle (9).

3. A wear resistant V-port sampling ball valve according to claim 1, characterized in that: The scale disc (4) is provided with a scale bar (10).

4. A wear resistant V-port sampling ball valve according to claim 1, characterized in that: The top end of the valve rod (2) is fixedly connected with a handle rod (11).

5. A wear resistant V-port sampling ball valve according to claim 1, characterized in that: The outer surface of the valve body (1) is fixedly connected with a supporting rod (12), and the end of the supporting rod (12) away from the valve body (1) is fixedly connected with a placing barrel (13).

6. A wear resistant V-port sampling ball valve according to claim 5, characterized in that: The inside of the placing barrel (13) is slidably connected with a supporting plate (14), the outer surface of the supporting plate (14) is fixedly connected with a limiting block (15), the outer surface of the placing barrel (13) is vertically provided with a limiting hole (16), and the end of the limiting block (15) away from the supporting plate (14) penetrates through the limiting hole (16) and extends to the outside of the placing barrel (13).

7. A wear resistant V-port sampling ball valve according to claim 6, characterized in that: The side of the supporting plate (14) facing the ground is fixedly connected with a mounting seat (17), the inside of the mounting seat (17) is rotatably connected with a threaded rod (18), the threaded rod (18) is screwed in the inside of the placing barrel (13), and the end of the threaded rod (18) away from the supporting plate (14) is fixedly connected with a handle disc (19).

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