Precise flow adjusting float valve

Abstract

The utility model provides a precise flow regulating float valve, which relates to the technical field of float valves, and comprises a tower tray, a through hole is arranged on the surface of the tower tray, a valve column is arranged in the through hole, two air outlets are arranged on the surface of the valve column, two valve feet are arranged at the bottom of the valve column, and a valve cover is arranged at the top of the valve column. When the air output of the air pump is reduced, the blowing force borne by the valve cover is reduced, and when the rising force of the valve cover is smaller than the elastic force of the reset spring, the clamping blocks are pushed forwards, and because the contact surfaces of the clamping blocks and the sliding grooves are inclined surfaces, when the two clamping blocks are pushed by the reset spring to move forwards, the clamping blocks are pushed to move forwards. The sliding groove of the valve column is extruded by the two ends to move downwards, and due to the fact that the air outlet in the surface of the valve column is narrow in upper portion and wide in lower portion, when the valve column moves downwards, the air output can be reduced, the passing air flow can be controlled, and the defect that the passing air flow cannot be precisely controlled is overcome.

Description

Technical Field

[0001] This utility model relates to the field of float valve technology, and in particular to a precision flow regulating float valve. Background Technology

[0002] A floating valve structure for a distillation column, disclosed in Chinese Publication No. CN102407024A, includes a tray, a valve cap, supports, and a valve plate. The tray has a tray hole. The valve cap is located directly above the tray hole. The valve cap is disc-shaped, and multiple slots are evenly distributed around its perimeter. A support extends from each slot towards the tray. The bottom of the support is fixed to the top surface of the tray, and the support is located around the tray hole. A downward-sloping groove is provided on the inner side of the support. The valve plate is located between the valve cap and the tray hole. The edge of the valve plate extends with a valve plate foot corresponding to the groove, and the valve plate slides up and down within the groove via the valve plate foot. This floating valve structure for a distillation column ensures the service life of the floating valve without affecting its normal operation, reduces maintenance frequency, and improves production efficiency.

[0003] The above technology can only be used with a fixed airflow. When the user needs to change the airflow, the float valve must be removed and replaced. It is impossible to precisely control the airflow. Such frequent replacements will greatly increase production costs and reduce work efficiency. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies that cannot precisely control the flow rate of passing air, and to propose a precision flow regulating float valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a precision flow regulating float valve, comprising a tray, the surface of which is provided with through holes, each through hole having a valve column inside, the surface of which has two air outlets, the bottom of which has two valve feet, the top of which has a valve cover, two retainers on both sides of which have two mounting brackets on both sides, the top of which has a fixing bolt, a return spring inside which has a telescopic rod inside, a damping block on one side of the telescopic rod, a gasket on one side of the damping block, a locking block on one side of the gasket, and two sliding grooves on the surface of which the valve column is provided.

[0006] Preferably, the valve foot is located at the bottom of the tray and is mounted on the valve stem.

[0007] Preferably, the air outlets are evenly distributed on both sides of the valve column, and the two sliding grooves are both located in the middle of the two air outlets.

[0008] Preferably, the two fixtures are positioned parallel to the positions of the two slides, and both mounting brackets are mounted on the fixtures.

[0009] Preferably, the fixing device is mounted on the tower plate by fixing bolts, and the telescopic rod is mounted on the damping block by fixing bolts.

[0010] Preferably, the telescopic rod and the damping block are both located inside the fixture, and the gasket is mounted on the fixture by two fixing bolts.

[0011] Preferably, the locking block is set on the damping block, and the position of the locking block is consistent with the position of the slide groove, with one end of the locking block installed in the slide groove.

[0012] Beneficial effects

[0013] In this invention, the valve column has two grooves on its surface, with the grooves being deeper at the top and shallower at the bottom. A retainer is located on one side of each groove, and the retainers are mounted on the tray using bolts from mounting brackets on both sides. A return spring is located inside the retainer, and a telescopic rod is located inside the return spring. A locking block is located on one side of the telescopic rod, and a damping block is located on the surface of the locking block. The telescopic rod is mounted on the damping block with two screws. A gasket is located on one side of the retainer, and the gasket is mounted on the retainer with two screws, securing the damping block inside the retainer. During use, the user can adjust the air pump according to the required air output. When the air output increases, the gas is blown through the through-hole towards the valve cover at the top of the valve column, increasing the blowing force on the valve cover and causing the valve column to move upwards. When the valve column moves upwards, the surface of the valve column... The sliding groove on the surface will also move upward. Since the sliding groove is deeper at the top and shallower at the bottom, the locking block stuck in the sliding groove will retract into the interior of the retainer by the squeezing force. Since the air outlet is conical, the air volume will increase when the valve column rises by the blowing force. When the air volume of the air pump decreases, the blowing force on the valve cover decreases. When the rising force of the valve cover is less than the elastic force of the return spring, it will push the locking block forward. Since the contact surfaces of the locking block and the sliding groove are both inclined, when the two locking blocks move forward under the pushing force of the return spring, the sliding groove of the valve column is squeezed at both ends and moves downward. Since the air outlet on the surface of the valve column is narrow at the top and wide at the bottom, the air volume will decrease when the valve column moves downward, thereby realizing the control of the air flow rate and solving the shortcomings of not being able to precisely control the air flow rate. Attached Figure Description

[0014] Figure 1 This is a bottom view of the present invention;

[0015] Figure 2 This is a structural diagram of some components of this utility model;

[0016] Figure 3This is a partial isometric drawing of the present invention;

[0017] Figure 4 This is a partial front view of the present invention;

[0018] Figure 5 For the present utility model Figure 4 A sectional view;

[0019] Figure 6 This is a partial perspective view of the present invention;

[0020] Figure 7 This is a partial right view of the present invention;

[0021] Figure 8 For the present utility model Figure 7 A sectional view.

[0022] Legend:

[0023] 1. Tray; 2. Valve cover; 3. Valve stem; 4. Valve foot; 5. Gas outlet; 6. Fixing device; 7. Fixing bolt; 8. Mounting bracket; 9. Clamping block; 10. Gasket; 11. Damping block; 12. Return spring; 13. Telescopic rod; 14. Through hole; 15. Slide groove. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0027] Reference Figure 1-8A precision flow regulating float valve includes a tray 1. The surface of the tray 1 has through holes 14, each containing a valve stem 3. The surface of the valve stem 3 has two air outlets 5. The bottom of the valve stem 3 has two valve feet 4. The top of the valve stem 3 has a valve cover 2. Two retainers 6 are located on both sides of the valve stem 3. Two mounting brackets 8 are located on both sides of each retainer 6. Each mounting bracket 8 has a fixing bolt 7 on its top. A return spring 12 is located inside the retainer 6. A telescopic rod 13 is located inside the return spring 12. A damping block 11 is located on one side of the telescopic rod 13. A gasket 10 is located on one side of the damping block 11. A retaining block 9 is located on one side of the gasket 10. The surface of the valve stem 3 has two sliding grooves 15. The valve feet 4 are mounted on the tray. The bottom of the tray 1 is provided with valve feet 4 mounted on valve stem 3. Air outlets 5 are evenly distributed on both sides of valve stem 3, and two slide grooves 15 are located in the middle of the two air outlets 5. The positions of the two retainers 6 are parallel to the positions of the two slide grooves 15, and the two mounting brackets 8 are located on the retainers 6. The retainers 6 are mounted on the tray 1 by fixing bolts 7, and the telescopic rod 13 is mounted on the damping block 11 by fixing bolts 7. The telescopic rod 13 and the damping block 11 are both located inside the retainer 6. The gasket 10 is mounted on the retainer 6 by two fixing bolts 7. The locking block 9 is located on the damping block 11, and the position of the locking block 9 is consistent with the position of the slide groove 15. One end of the locking block 9 is installed in the slide groove 15.

[0028] Multiple through holes 14 are formed on the surface of the tray 1, and the valve column 3 is inserted into the through holes 14. Since the diameter of the valve foot 4 is larger than the through hole 14, and the two valve feet 4 are welded to the valve column 3, the valve column 3 will be blocked by the valve feet 4 when it rises, preventing the valve column 3 from detaching from the through hole 14 through the airflow. A valve cover 2 is provided on the top of the valve column 3. The valve cover 2 is screwed into the valve column 3 by the thread at the bottom end, so that the valve column 3 and the valve cover 2 are threadedly connected. The diameter of the valve cover 2 is larger than the through hole 14. So when the floating valve tower stops working, the valve column 3 will fall downward by its own weight, and when the valve cover 2 falls onto the tray 1, it will prevent the valve column 3 from detaching from the through hole 14 by gravity. Two sliding grooves 15 are provided on the surface of the valve column 3. The sliding grooves 15 are deeper at the top and shallower at the bottom. The sliding grooves 15 are evenly distributed on the valve column. On both sides of the tray 1, a retainer 6 is provided on one side of each of the two slides 15. The retainer 6 is mounted on the tray 1 by fixing bolts 7 passing through the mounting brackets 8 on both sides. The mounting brackets 8 are welded to the retainer 6. A return spring 12 is provided inside the retainer 6, and a telescopic rod 13 is provided inside the return spring 12. A locking block 9 is provided on one side of the telescopic rod 13, and one end of the locking block 9 passes through the retainer 6. A damping block 11 is provided on the surface of the locking block 9. The damping block 11 is located on the side near the fixing bolt 7. The telescopic rod 13 is mounted on the damping block 11 by two screws. A washer 10 is provided on one side of the retainer 6. The washer 10 is mounted on the retainer 6 by two screws. Since the hole in the middle of the washer 10 is larger than the locking block 9 and smaller than the damping block 7, the washer 10 is mounted on the tray 1. Damping block 11, so that when the locking block 9 is pushed by the return spring 12, it can block the damping block 11, preventing the damping block 11 from detaching from the retainer 6 by the pushing force. When in use, the user can adjust the air pump according to the required airflow. When the air pump output increases, the blowing force of the gas through the through hole 14 towards the valve cover 2 at the top of the valve column 3 will also increase. When the blowing force on the valve cover 2 is greater than the pushing force of the return spring 12 on the locking block 9, the valve column 3 will move upward. When the valve column 3 moves upward, the slide groove 15 on the surface of the valve column 3 will also move upward. Since the slide groove 15 is deep at the top and shallow at the bottom, the locking block 9 stuck in the slide groove 15 will retract into the interior of the retainer 6 by the squeezing force generated by the upward movement of the slide groove 15. And since the air outlet 5 is conical, when When the valve stem 3 rises due to the blowing force, the area of ​​the air outlet 5 also increases, thereby increasing the airflow. When a smaller airflow is required, the air output of the air pump can be reduced, thus reducing the blowing force on the valve cover 2. When the rising force of the valve cover 2 is less than the elastic force of the return spring 12, the return spring 12 will push the locking block 9 forward. Since the contact surfaces of the locking block 9 and the slide groove 15 are both inclined, when the two locking blocks 9 move forward under the pushing force of the return spring 12, the slide groove 15 of the valve stem 3 is squeezed at both ends and moves downward. Since the air outlet 5 on the surface of the valve stem 3 is narrow at the top and wide at the bottom, when the valve stem 3 moves downward, the area of ​​the air outlet 5 will also decrease, thereby reducing the airflow and controlling the airflow. Specific Implementation Example 2:

[0030] Reference Figure 1-8 A precision flow regulating float valve, further based on the basic structure in specific embodiment one, allows the removal of the retainer 6 and the slide groove 15, and provides a return spring 12 at the top of each of the two valve feet 4. The return spring 12 has a telescopic rod 13 inside, and the return spring 12 and the telescopic rod 13 are positioned between the valve feet 4 and the tray 1. Each end of the telescopic rod 13 has two mounting brackets 8, with the bottom mounting bracket 8 mounted on the valve foot 4 and the top mounting bracket 8 mounted on the tray 1. Each mounting bracket 8 is secured with a fixing bolt 7. Fixed to valve foot 4 and tray 1, when the air output of the air pump increases, the blowing force on valve cover 2 will give valve column 3 an upward force. When the upward force is greater than the elastic force of return spring 12, return spring 12 will extend, thereby raising valve column 3 and increasing the area of ​​air outlet 5, thus increasing airflow. When the air output of the air pump decreases, the blowing force on valve cover 2 will decrease. When the upward force of valve column 3 is less than the tension of return spring 12, valve column 3 will fall, and the area of ​​air outlet 5 will decrease, thus reducing airflow.

[0031] In summary:

[0032] 1. The valve column 3 has two grooves 15 on its surface, with the grooves being deeper at the top and shallower at the bottom. A retainer 6 is provided on one side of each groove 15. The retainer 6 is mounted on the tray 1 using mounting brackets 8 on both sides and fixing bolts 7. A return spring 12 is provided inside the retainer 6, and a telescopic rod 13 is provided inside the return spring 12. A locking block 9 is provided on one side of the telescopic rod 13, and a damping block 11 is provided on the surface of the locking block 9. The telescopic rod 13 is mounted on the damping block 11 with two screws. A gasket 10 is provided on one side of the retainer 6, and the gasket 10 is mounted on the retainer 6 with two screws, causing the damping block 11 to be locked inside the retainer 6. During use, the user can adjust the air pump according to the required air output. When the air output increases, the gas is blown through the through hole 14 towards the valve cover 2 at the top of the valve column 3, increasing the blowing force on the valve cover 2 and causing the valve column 3 to move upwards. When the valve column 3 moves, the groove 15 on its surface also moves upward. Since the groove 15 is deeper at the top and shallower at the bottom, the locking block 9, which is stuck in the groove 15, will retract into the interior of the retainer 6 under the squeezing force. Since the air outlet 5 is conical, the air volume will increase when the valve column 3 rises by blowing force. When the air volume of the air pump decreases, the blowing force on the valve cover 2 decreases. When the rising force of the valve cover 2 is less than the elastic force of the return spring 12, it will push the locking block 9 forward. Since the contact surfaces of the locking block 9 and the groove 15 are both inclined, when the two locking blocks 9 move forward under the pushing force of the return spring 12, the groove 15 of the valve column 3 is squeezed at both ends and moves downward. Since the air outlet 5 on the surface of the valve column 3 is narrower at the top and wider at the bottom, the air volume will decrease when the valve column 3 moves downward, thereby realizing the control of the air flow rate and solving the shortcomings of not being able to precisely control the air flow rate.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] 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. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A precision flow regulating float valve, comprising a tray (1), characterized in that: The surface of the tray (1) is provided with through holes (14), and each through hole (14) is provided with a valve column (3). The surface of the valve column (3) is provided with two air outlets (5). The bottom of the valve column (3) is provided with two valve feet (4). The top of the valve column (3) is provided with a valve cover (2). Each side of the valve column (3) is provided with two retainers (6). Each side of the two retainers (6) is provided with two mounting brackets (8). The top of each mounting bracket (8) is provided with a fixing bolt (7). The inside of the retainer (6) is provided with a return spring (12). The inside of the return spring (12) is provided with a telescopic rod (13). One side of the telescopic rod (13) is provided with a damping block (11). One side of the damping block (11) is provided with a gasket (10). One side of the gasket (10) is provided with a locking block (9). The surface of the valve column (3) is provided with two sliding grooves (15).

2. The precision flow regulating float valve according to claim 1, characterized in that: The valve foot (4) is located at the bottom of the tray (1) and is mounted on the valve column (3).

3. The precision flow regulating float valve according to claim 1, characterized in that: The air outlets (5) are evenly arranged on both sides of the valve column (3), and the two slide grooves (15) are both arranged in the middle of the two air outlets (5).

4. The precision flow regulating float valve according to claim 1, characterized in that: The two fixtures (6) are positioned parallel to the positions of the two slides (15), and both mounting brackets (8) are mounted on the fixtures (6).

5. A precision flow regulating float valve according to claim 1, characterized in that: The fixing device (6) is installed on the tower plate (1) by fixing bolts (7), and the telescopic rod (13) is installed on the damping block (11) by fixing bolts (7).

6. A precision flow regulating float valve according to claim 1, characterized in that: The telescopic rod (13) and the damping block (11) are both located inside the fixture (6), and the gasket (10) is mounted on the fixture (6) by two fixing bolts (7).

7. A precision flow regulating float valve according to claim 1, characterized in that: The locking block (9) is set on the damping block (11), and the position of the locking block (9) is consistent with the position of the slide groove (15). One end of the locking block (9) is installed in the slide groove (15).

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