Rotary valve capable of accurately controlling flow

Abstract

The utility model discloses a rotary valve capable of accurately controlling flow, which belongs to the field of valves and comprises a valve body, two partition plates which are arranged at intervals are fixedly mounted in the valve body, a plurality of through holes which are vertically arranged at equal intervals are formed in the partition plates, a valve seat is arranged at the top of the valve body, a motor is fixedly mounted at the top of the valve seat, and the motor is connected with the valve seat. The output end of the motor is fixedly connected with a screw rod, the lower end of the screw rod is in threaded connection with a valve plate, and the valve plate is slidably connected between the two partition plates; through the arrangement of the partition plates, the through holes, the valve seat, the motor, the screw rod and the valve plate, when the flow is adjusted, the motor can be started to drive the screw rod to rotate, the screw rod drives the valve plate to vertically move, the valve plate slides between the two partition plates, the valve plate shields different numbers of through holes, the flow can be accurately controlled, and therefore the flow can be accurately controlled at a certain specific size; therefore, the use requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a rotary valve for accurately controlling flow. Background Art

[0002] Valves are pipe accessories used to open and close pipes, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid conveying systems, with functions such as shut-off, regulation, diversion, prevention of backflow, pressure stabilization, flow diversion, or overflow pressure relief. Valves used in fluid control systems come in a wide variety of varieties and specifications, from the simplest shut-off valves to various valves used in extremely complex automatic control systems.

[0003] Most existing rotary valves use a handle to rotate the valve stem, so that the valve stem drives the valve core to move, and the flow control is achieved through the movement of the valve core. However, this cannot accurately control the flow to a certain size and is difficult to meet usage requirements. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary valve for accurately controlling flow, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary valve for accurately controlling flow, comprising a valve body, two spaced-apart partitions are fixedly installed inside the valve body, a plurality of vertically equidistantly arranged through holes are opened on the partitions, a valve seat is provided on the top of the valve body, a motor is fixedly installed on the top of the valve seat, a screw is fixedly connected to the output end of the motor, a valve plate is threadedly connected to the lower end of the screw, and the valve plate is slidably connected between the two partitions.

[0006] As a preferred implementation, an inlet and an outlet are respectively provided at both ends of the valve body.

[0007] As a preferred implementation, a sliding hole is provided between the valve body and the valve seat, and a sealing sleeve is fixedly connected to the inner wall of the sliding hole.

[0008] As a preferred implementation, a sealing gasket is fixedly connected to the outer surface of the valve plate.

[0009] As a preferred implementation, a threaded hole is opened in the middle of the valve plate, and the threaded hole is adapted to fit the screw rod.

[0010] As a preferred implementation, limit rods are fixedly installed on both sides of the interior of the valve seat, and the valve plate is slidably connected to the limit rods.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The rotary valve for precisely controlling flow rate, through the arrangement of the partition, through-hole, valve seat, motor, screw and valve plate, can start the motor to drive the screw to rotate when adjusting the flow rate, so that the screw drives the valve plate to move vertically, so that the valve plate slides between the two partitions, and the valve plate blocks different numbers of through-holes, so that the flow rate can be precisely controlled to a certain size, thereby meeting the use requirements;

[0013] This rotary valve for precise flow control can improve the sealing between the valve body and the valve seat by setting a sealing sleeve to prevent fluid from entering the valve seat. The sealing between the valve plate and the partition can be improved by setting a sealing gasket to prevent fluid from flowing between the valve plate and the partition, thereby improving the sealing effect of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the partition structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the valve plate of the utility model.

[0018] In the figure: 1. valve body; 2. partition; 3. through hole; 4. valve seat; 5. motor; 6. screw; 7. valve plate; 8. inlet; 9. outlet; 10. sliding hole; 11. sealing sleeve; 12. sealing gasket; 13. threaded hole; 14. limit rod. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0021] See also Figure 1-4The utility model provides a rotary valve for accurately controlling flow, comprising a valve body 1, wherein both ends of the valve body 1 are respectively provided with an inlet 8 and an outlet 9, wherein the fluid enters the valve body 1 from the inlet 8 and is discharged from the outlet 9, wherein two spaced partitions 2 are fixedly installed inside the valve body 1, wherein the partitions 2 are provided with a plurality of vertically equidistantly arranged through holes 3, wherein the fluid passes through the through holes 3, wherein a valve seat 4 is provided on the top of the valve body 1, wherein a motor 5 is fixedly installed on the top of the valve seat 4, wherein a screw 6 is fixedly connected to the output end of the motor 5, wherein the screw 6 is vertically arranged, and wherein the lower end of the screw 6 is threadedly connected to the valve Plate 7, a threaded hole 13 is opened in the middle of the valve plate 7, the threaded hole 13 is adapted to the screw 6, the valve plate 7 is slidably connected between the two partitions 2, through the arrangement of the partition 2, the through hole 3, the valve seat 4, the motor 5, the screw 6 and the valve plate 7, when adjusting the flow, the motor 5 can be started to drive the screw 6 to rotate, so that the screw 6 drives the valve plate 7 to move vertically, so that the valve plate 7 slides between the two partitions 2, and the valve plate 7 blocks different numbers of through holes 3, so as to accurately control the flow so as to accurately control the flow at a certain specific size, thereby meeting the use requirements.

[0022] Among them, limiting rods 14 are fixedly installed on both sides of the inside of the valve seat 4. There are two limiting rods 14, and the two limiting rods 14 are both arranged vertically. The valve plate 7 is slidably connected to the limiting rods 14. Through the setting of the limiting rods 14, the valve plate 7 can be limited, and the stability of the valve plate 7 can be improved.

[0023] Among them, a sliding hole 10 is opened between the valve body 1 and the valve seat 4, and a sealing sleeve 11 is fixedly connected to the inner wall of the sliding hole 10. The valve plate 7 slides in the sealing sleeve 11. The setting of the sealing sleeve 11 can improve the sealing between the valve body 1 and the valve seat 4 to prevent the fluid from entering the valve seat 4. The outer surface of the valve plate 7 is fixedly connected with a sealing gasket 12. The setting of the sealing gasket 12 can improve the sealing between the valve plate 7 and the partition 2 to prevent the fluid from flowing between the valve plate 7 and the partition 2.

[0024] The working principle and use process of the utility model are as follows: first, the fluid enters the valve body 1 from the inlet 8, passes through the through hole 3, and is discharged from the outlet 9. Through the settings of the partition 2, the through hole 3, the valve seat 4, the motor 5, the screw 6 and the valve plate 7, when adjusting the flow rate, the motor 5 can be started to drive the screw 6 to rotate, so that the screw 6 drives the valve plate 7 to move vertically, so that the valve plate 7 slides between the two partitions 2. Through the blocking of different numbers of through holes 3 by the valve plate 7, the flow rate can be accurately controlled so that the flow rate can be accurately controlled to a certain specific size, thereby meeting the use requirements. Through the setting of the limit rod 14, the valve plate 7 can be limited, and the stability of the valve plate 7 can be improved. Through the setting of the sealing sleeve 11, the sealing between the valve body 1 and the valve seat 4 can be improved to prevent the fluid from entering the valve seat 4. Through the setting of the sealing gasket 12, the sealing between the valve plate 7 and the partition 2 can be improved to prevent the fluid from flowing between the valve plate 7 and the partition 2, thereby improving the sealing effect of the valve.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary valve for accurately controlling flow, comprising a valve body (1), characterized in that: Two spaced-apart partitions (2) are fixedly installed inside the valve body (1), and a plurality of vertically equidistantly arranged through holes (3) are opened on the partitions (2). A valve seat (4) is provided on the top of the valve body (1), and a motor (5) is fixedly installed on the top of the valve seat (4). A screw (6) is fixedly connected to the output end of the motor (5), and a valve plate (7) is threadedly connected to the lower end of the screw (6), and the valve plate (7) is slidably connected between the two partitions (2).

2. A rotary valve for accurately controlling flow according to claim 1, characterized in that: An inlet (8) and an outlet (9) are respectively provided at both ends of the valve body (1).

3. A rotary valve for accurately controlling flow according to claim 1, characterized in that: A sliding hole (10) is provided between the valve body (1) and the valve seat (4), and a sealing sleeve (11) is fixedly connected to the inner wall of the sliding hole (10).

4. A rotary valve for accurately controlling flow according to claim 1, characterized in that: A sealing gasket (12) is fixedly connected to the outer surface of the valve plate (7).

5. A rotary valve for accurately controlling flow according to claim 1, characterized in that: A threaded hole (13) is provided in the middle of the valve plate (7), and the threaded hole (13) is adapted to fit the screw rod (6).

6. A rotary valve for accurately controlling flow according to claim 1, characterized in that: Limit rods (14) are fixedly installed on both sides of the interior of the valve seat (4), and the valve plate (7) is slidably connected to the limit rods (14).

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