Flow valve for controlling liquid outlet speed

Abstract

The utility model relates to the technical field of flow valves, and discloses a flow valve capable of controlling liquid outlet speed, which comprises an outer shell, the top of the outer shell is fixedly connected with a fixed plate, the inside of the fixed plate is rotatably connected with a rotating rod, one end of the rotating rod is fixedly connected with a handle, the outer wall of the rotating rod is fixedly connected with a bearing, and the bearing is fixedly connected with a rotating shaft. The outer wall of the bearing is fixedly connected to the interior of the fixing plate, the outer wall of the rotating rod is fixedly connected with a worm, the outer wall of the worm is rotatably connected to the interior of the fixing plate, the interior of the fixing plate is rotatably connected with a connecting rod, and one end of the connecting rod is fixedly connected with a worm wheel. According to the utility model, the driving handle is matched with the bearing and the rotating rod to drive the worm to rotate, so that the problem that the flow velocity control is not accurate enough due to the fact that the response cannot be quickly performed is solved, and the baffle is accurately controlled, thereby accurately controlling the flow velocity and improving the operation efficiency and the safety of the system.

Description

Technical Field

[0001] The utility model relates to the technical field of flow valves, in particular to a flow valve for controlling liquid outlet speed. Background Art

[0002] A flow valve is a device used to control the flow rate and flow rate of a fluid, and is usually used in liquid or gas pipeline systems. The flow valve controls the flow rate and flow rate of the fluid by adjusting the cross-sectional area of ​​the fluid channel. In some applications, the flow rate of the fluid needs to be kept constant to ensure the normal operation of the system. For example, in chemical production, the reaction rate in the reactor is related to the speed of fluid injection, and the flow rate needs to be controlled by a flow valve to ensure the stability of the reaction and the quality of the product.

[0003] Most traditional flow valves control their valve plates. When the valve is opened, the valve plate rises, the cross-sectional area of ​​the fluid channel increases, and the flow rate increases; when the valve is closed, the valve plate drops, the cross-sectional area of ​​the fluid channel decreases, and the flow rate decreases.

[0004] The above-mentioned flow valve has a slow control response speed to the valve plate and cannot respond quickly to changes in flow rate, which will lead to system instability, thereby making the flow rate control inaccurate and difficult to achieve high-precision flow rate control. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a flow valve for controlling the liquid outlet speed, aiming to improve the problem that the flow rate control is not accurate enough due to the inability to respond quickly, and it is difficult to achieve high-precision flow rate control.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a flow valve for controlling liquid discharge speed, comprising an outer shell, the top of the outer shell is fixedly connected to a fixing plate, the interior of the fixing plate is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a handle, the outer wall of the rotating rod is fixedly connected to a bearing, the outer wall of the bearing is fixedly connected to the interior of the fixing plate, the outer wall of the rotating rod is fixedly connected to a worm, the outer wall of the worm is rotatably connected to the interior of the fixing plate, the interior of the fixing plate is rotatably connected to a connecting rod, one end of the connecting rod is fixedly connected to a worm wheel, the outer wall of the worm wheel is rotatably connected to the interior of the fixing plate, the worm wheel meshes with the worm, the outer wall of the connecting rod is fixedly connected to a baffle, a sealing assembly is provided inside the baffle, the inner wall of the sealing plate is fixedly connected to a telescopic rod, and the outer wall of the telescopic rod is sleeved with a spring.

[0007] Furthermore, the sealing assembly comprises a sealing plate, and an outer wall of the sealing plate is slidably connected to the inside of the baffle.

[0008] Furthermore, a telescopic rod is fixedly connected to the inner wall of the sealing plate, and a spring is sleeved on the outer wall of the telescopic rod. One end of the spring is fixedly connected to the inside of the sealing plate, and the other end of the spring is fixedly connected to the inside of the baffle.

[0009] Furthermore, a flange is fixedly connected to the outer wall of the outer shell, and a sealing ring is fixedly connected to the outer wall of the flange.

[0010] Furthermore, a fixing ring is fixedly connected to the bottom of the flange, and a movable ring is rotatably connected to one end of the fixing ring.

[0011] Furthermore, the other end of the fixing ring is rotatably connected to a screw rod, and the outer wall of the screw rod is threadedly connected to a nut.

[0012] Furthermore, a connecting pipe is attached to the outer wall of the sealing ring, and the outer wall of the connecting pipe is arranged between the fixed ring and the movable ring.

[0013] Furthermore, the inner wall of the movable ring is in contact with the outer walls of the flange and the fixed ring.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the worm is first driven to rotate by the driving handle in conjunction with the bearing and the rotating rod, and then the baffle is precisely controlled in conjunction with the worm wheel, the fixing plate, the connecting rod, the baffle, the sealing plate and the spring, thereby solving the problem of insufficient precision in flow rate control due to the inability to respond quickly, and achieving precise control of the baffle, thereby precisely controlling the flow rate and improving the operating efficiency and safety of the system.

[0016] 2. In the utility model, firstly, the connecting pipe is fitted with the flange, and then sealed by a sealing ring. Then, the flow valve is installed and disassembled by cooperating with a fixed ring, a movable ring, a screw and a nut, so that the disassembly and assembly of the flow valve is convenient, thereby saving installation time, reducing downtime and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a flow valve for controlling liquid discharge speed proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the outer shell of a flow valve for controlling the liquid outlet speed proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of a fixed plate of a flow valve for controlling the liquid outlet speed proposed by the utility model;

[0020] Figure 4The utility model is a schematic structural diagram of one side of a movable ring of a flow valve for controlling liquid outlet speed.

[0021] Legend:

[0022] 1. Outer shell; 2. Fixed plate; 3. Handle; 4. Bearing; 5. Rotating rod; 6. Worm; 7. Worm wheel; 8. Connecting rod; 9. Baffle; 10. Sealing plate; 11. Telescopic rod; 12. Spring; 13. Flange; 14. Sealing ring; 15. Fixed ring; 16. Movable ring; 17. Screw; 18. Nut; 19. Connecting pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a flow valve for controlling the liquid discharge speed, comprising an outer shell 1, a fixed plate 2 is fixedly connected to the top of the outer shell 1, a rotating rod 5 is rotatably connected to the interior of the fixed plate 2, a handle 3 is fixedly connected to one end of the rotating rod 5, a bearing 4 is fixedly connected to the outer wall of the rotating rod 5, an outer wall of the bearing 4 is fixedly connected to the interior of the fixed plate 2, a worm 6 is fixedly connected to the outer wall of the rotating rod 5, an outer wall of the worm 6 is rotatably connected to the interior of the fixed plate 2, a connecting rod 8 is rotatably connected to the interior of the fixed plate 2, and one end of the connecting rod 8 is fixedly connected to the outer wall of the rotating rod 5. The end is fixedly connected with a worm wheel 7, the outer wall of the worm wheel 7 is rotatably connected to the inside of the fixed plate 2, the worm wheel 7 is meshed with the worm 6, the outer wall of the connecting rod 8 is fixedly connected with a baffle 9, the inside of the baffle 9 is provided with a sealing assembly, the inner wall of the sealing plate 10 is fixedly connected with a telescopic rod 11, the outer wall of the telescopic rod 11 is sleeved with a spring 12, the sealing assembly includes a sealing plate 10, the outer wall of the sealing plate 10 is slidably connected to the inside of the baffle 9, one end of the spring 12 is fixedly connected to the inside of the sealing plate 10, and the other end of the spring 12 is fixedly connected to the inside of the baffle 9;

[0025] Specifically, first, the handle 3 is driven to cooperate with the bearing 4 to drive the rotating rod 5 to rotate smoothly inside the fixed plate 2. The rotation of the rotating rod 5 further drives the rotation of multiple worms 6. Between the worm 6 and the worm wheel 7, the worm wheel 7 rotates with the rotation of the worm 6. The connecting rod 8 transmits the rotation of the worm wheel 7 to the baffle 9, so that the baffle 9 rotates orderly inside the outer shell 1. The gap between the baffles 9 is the key to controlling the flow rate of the flow valve. When the gap size is appropriate, the flow can be output stably; and when the gap changes, the flow will also change accordingly. When the baffle 9 is closed, a certain pressure will be generated on the sealing plate 10, causing the sealing plate 10 to slide inside the baffle 9, thereby compressing the spring 12. During the compression process, the spring 12 will push the sealing plate 10 to fit tightly with another sealing plate 10, thereby achieving a sealing effect.

[0026] Reference Figure 1 and Figure 4 The outer wall of the outer shell 1 is fixedly connected with a flange 13, the outer wall of the flange 13 is fixedly connected with a sealing ring 14, the bottom of the flange 13 is fixedly connected with a fixing ring 15, one end of the fixing ring 15 is rotatably connected with a movable ring 16, the other end of the fixing ring 15 is rotatably connected with a screw 17, the outer wall of the screw 17 is threadedly connected with a nut 18, the outer wall of the sealing ring 14 is attached with a connecting pipe 19, the outer wall of the connecting pipe 19 is arranged between the fixing ring 15 and the movable ring 16, and the inner wall of the movable ring 16 is attached to the outer walls of the flange 13 and the fixing ring 15;

[0027] Specifically, first place the connecting pipe 19 on the inner wall of the fixed ring 15. During this process, ensure that the connecting pipe 19 fits tightly with the flange 13. Next, achieve sealing through the sealing ring 14 on the outer wall of the flange 13. Then rotate the movable ring 16 to make it fit with one end of the fixed ring 15 to ensure a tight fit with the fixed ring 15. Then rotate the screw 17 to the inside of the movable ring 16. Finally, drive the nut 18 to rotate on the outer wall of the screw 17 to tightly connect the fixed ring 15 and the movable ring 16. The rotation of the driving nut 18 requires a certain torque and precision to ensure that the connection between the fixed ring 15 and the movable ring 16 is firm and reliable.

[0028] Working principle: When the flow valve for controlling the liquid discharge speed is needed, the handle 3 is first driven to cooperate with the bearing 4 to drive the rotating rod 5 to rotate inside the fixed plate 2, thereby driving the multiple worms 6 to rotate, and then through the meshing between the worm 6 and the worm wheel 7, the worm wheel 7 rotates with the rotation of the worm 6, thereby driving the multiple baffles 9 to rotate inside the outer shell 1 through the connecting rod 8, and the flow rate of the flow valve is controlled by the gaps between the multiple baffles 9. Then, when the baffle 9 is closed, it will press the sealing plate 10, so that the sealing plate 10 slides inside the baffle 9, so that the spring 12 is contracted. The sealing plates 10 and the sealing plates 10 are tightly fitted together to achieve sealing by contracting the thrust generated by the contraction of the spring 12. Finally, the connecting pipe 19 is placed on the inner wall of the fixed ring 15 so that the connecting pipe 19 fits with the flange 13 and the sealing is achieved by the sealing ring 14 on the outer wall of the flange 13. Then, the movable ring 16 is rotated to fit with one end of the fixed ring 15, and then the screw 17 is rotated to the inside of the movable ring 16. Finally, the nut 18 is driven to rotate on the outer wall of the screw 17 to tightly connect the fixed ring 15 and the movable ring 16, thereby achieving the installation of the flow valve.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flow valve for controlling liquid discharge speed, comprising an outer shell (1), characterized in that: The top of the outer shell (1) is fixedly connected to a fixing plate (2), the interior of the fixing plate (2) is rotatably connected to a rotating rod (5), one end of the rotating rod (5) is fixedly connected to a handle (3), the outer wall of the rotating rod (5) is fixedly connected to a bearing (4), the outer wall of the bearing (4) is fixedly connected to the interior of the fixing plate (2), the outer wall of the rotating rod (5) is fixedly connected to a worm (6), the outer wall of the worm (6) is rotatably connected to the interior of the fixing plate (2), the interior of the fixing plate (2) is rotatably connected to a connecting rod (8), one end of the connecting rod (8) is fixedly connected to a worm wheel (7), the outer wall of the worm wheel (7) The connecting rod (8) is rotatably connected to the interior of the fixed plate (2), the worm wheel (7) is meshed with the worm (6), the outer wall of the connecting rod (8) is fixedly connected to a baffle (9), the interior of the baffle (9) is provided with a sealing assembly, the sealing assembly comprises a sealing plate (10), the outer wall of the sealing plate (10) is slidably connected to the interior of the baffle (9), the inner wall of the sealing plate (10) is fixedly connected to a telescopic rod (11), the outer wall of the telescopic rod (11) is sleeved with a spring (12), one end of the spring (12) is fixedly connected to the interior of the sealing plate (10), and the other end of the spring (12) is fixedly connected to the interior of the baffle (9).

2. A flow valve for controlling liquid outlet speed according to claim 1, characterized in that: The outer wall of the outer shell (1) is fixedly connected to a flange (13), and the outer wall of the flange (13) is fixedly connected to a sealing ring (14).

3. A flow valve for controlling liquid outlet speed according to claim 2, characterized in that: A fixing ring (15) is fixedly connected to the bottom of the flange (13), and a movable ring (16) is rotatably connected to one end of the fixing ring (15).

4. A flow valve for controlling liquid outlet speed according to claim 3, characterized in that: The other end of the fixing ring (15) is rotatably connected to a screw rod (17), and the outer wall of the screw rod (17) is threadedly connected to a nut (18).

5. A flow valve for controlling liquid outlet speed according to claim 3, characterized in that: The outer wall of the sealing ring (14) is fitted with a connecting pipe (19), and the outer wall of the connecting pipe (19) is arranged between the fixed ring (15) and the movable ring (16).

6. A flow valve for controlling liquid outlet speed according to claim 5, characterized in that: The inner wall of the movable ring (16) is in contact with the outer walls of the flange (13) and the fixed ring (15).

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