Graded speed control valve

Abstract

The grading speed control valve comprises a control valve body, an annular groove and a through hole which are coaxially aligned are formed in the control valve body, a connecting annular plate is arranged in the annular groove, a first water baffle is connected with a sliding rod penetrating through a second water baffle and a third water baffle in an up-down sliding mode, and the lower end face of the sliding rod is fixedly connected with a connecting rod. The connecting rod is fixedly connected with a clamping strip, the clamping strip can be clamped into the clamping groove, at the beginning, the second water baffle and the third water baffle rotate to the position perpendicular to the control valve body along with water flow, and small-diameter water flow control is conducted by rotating the first water baffle; when the connecting rod clamps the second water baffle or clamps the second water baffle and the third water baffle at the same time, larger-diameter water flow control is carried out, and the second water baffle, the third water baffle and the first water baffle rotate to completely block water flow, so that hierarchical control is carried out, accurate control is carried out, and errors are reduced.

Description

Technical Field

[0001] The utility model relates to the field of valve control, in particular to a graded speed control valve. Background Art

[0002] When a water pipe is in use, it is often necessary to control the water flow. A water baffle is commonly used to control the flow of water by rotating the water baffle. The error of this control is large. By changing the water baffle to three pieces, graded control can be performed. Initially, the water flow is controlled by the smaller water baffle in the middle, and the water flow of a larger cross-section is controlled by clamping one or two water baffles until the water flow is completely blocked, thereby performing more precise control and reducing errors. Utility Model Content

[0003] The purpose of the utility model is to provide a graded speed control valve to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a graded speed control valve, comprising a control valve body, the control valve body is provided with a coaxially aligned annular groove and a through hole, the annular groove is provided with a connecting annular plate, the connecting annular plate is rotatably connected to a third water baffle, the third water baffle is provided with an annular convex plate, the third water baffle is rotatably connected to a second water baffle through the annular convex plate, the second water baffle is rotatably connected to the first water baffle through the annular convex plate, the first water baffle is slidably connected to a sliding rod passing through the second water baffle and the third water baffle, the lower end surface of the sliding rod is fixedly connected to a connecting rod, the first water baffle, the second water baffle and the third water baffle are provided with a clamping groove at the lower sides, the connecting rod is fixedly connected to a clamping strip, and the clamping strip can be clamped in the clamping groove, so that the first water baffle, the second water baffle and the third water baffle can be clamped by driving the sliding rod downward to perform graded water flow control.

[0005] Advantageously, a connecting pipe is fixedly connected to the upper side of the control valve body, a connecting plate is fixedly connected to the upper end surface of the connecting pipe, and a motor is fixedly connected to the upper end surface of the connecting plate;

[0006] Advantageously, a push rod cavity is provided in the connecting tube, a rotating plate located in the push rod cavity is rotatably connected to the lower end surface of the connecting plate, an electric push rod located in the push rod cavity is fixedly connected to the lower end surface of the rotating plate, and the electric push rod is fixedly connected to the sliding rod, so as to drive the sliding rod to move up and down;

[0007] Advantageously, the motor is connected to the rotating plate in a power connection, and the motor can drive the rotating plate to rotate, thereby driving the first water baffle, the second water baffle and the third water baffle to rotate, so as to control the flow of water;

[0008] Advantageously, the control valve body is provided with two left-right symmetrical connecting grooves, through which the inlet and outlet water pipes are sealed and connected.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model is provided with a first water baffle plate, a connecting rod and a control valve body, and an electric push rod can drive the connecting rod to move down to clamp the first water baffle plate, the second water baffle plate and the third water baffle plate, and not clamp the second water baffle plate and the third water baffle plate. The second water baffle plate and the third water baffle plate rotate to a position perpendicular to the control valve body along with the water flow, and a water flow of a smaller diameter is controlled by rotating the first water baffle plate. When the connecting rod clamps the second water baffle plate or clamps the second water baffle plate and the third water baffle plate at the same time, a water flow of a larger diameter is controlled. The second water baffle plate, the third water baffle plate and the first water baffle plate can be completely blocked by rotation, so that graded control is performed, precise control is performed, and error is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0012] Figure 2 for Figure 1 A top view of

[0013] Figure 3 for Figure 2 AA cross-sectional diagram of ;

[0014] Figure 4 for Figure 3 A partial enlarged schematic diagram of

[0015] Figure 5 It is a three-dimensional schematic diagram of the cross section of the utility model and the water retaining plate;

[0016] Figure 6 for Figure 5 A partial enlarged schematic diagram of

[0017] Figure 7 It is a three-dimensional schematic diagram of the control valve body of the utility model.

[0018] In the figure: 100, control valve body; 101, connecting pipe; 102, connecting plate; 103, motor; 104, connecting groove; 105, first water baffle plate; 106, second water baffle plate; 107, third water baffle plate; 108, electric push rod; 109, sliding rod; 110, connecting rod; 111, push rod cavity; 112, connecting annular plate; 113, clamping strip; 114, clamping groove; 115, annular convex plate; 116, annular groove; 117, through hole; 118, rotating plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0020] Embodiment 1:

[0021] See also Figure 1-7 The utility model provides a technical solution: a graded speed control valve, including a control valve body 100, the control valve body 100 is provided with a coaxially aligned annular groove 116 and a through hole 117, the annular groove 116 is provided with a connecting annular plate 112, the connecting annular plate 112 is rotatably connected to a third water baffle 107, the third water baffle 107 is provided with an annular convex plate 115, the third water baffle 107 is rotatably connected to a second water baffle 106 through the annular convex plate 115, the second water baffle 106 is rotatably connected to a first water baffle 105 through the annular convex plate 115, the first water baffle 105 is rotatably connected to a second water baffle 106 through the annular convex plate 115, A sliding rod 109 is connected to the lower slide and passes through the second water baffle 106 and the third water baffle 107. The lower end surface of the sliding rod 109 is fixedly connected to a connecting rod 110. The lower sides of the first water baffle 105, the second water baffle 106 and the third water baffle 107 are provided with a snap-in groove 114. The connecting rod 110 is fixedly connected to a snap-in strip 113, and the snap-in strip 113 can be snapped into the snap-in groove 114, so that the first water baffle 105, the second water baffle 106 and the third water baffle 107 can be snapped into the snap-in groove 114 by driving the sliding rod 109 to move downward, so as to control the water flow in a graded manner.

[0022] The control valve body 100 is fixedly connected to a connecting pipe 101 on its upper side, the connecting pipe 101 is fixedly connected to a connecting plate 102 on its upper end, and the connecting plate 102 is fixedly connected to a motor 103 on its upper end.

[0023] A push rod cavity 111 is provided in the connecting tube 101, a rotating plate 118 located in the push rod cavity 111 is rotatably connected to the lower end surface of the connecting plate 102, an electric push rod 108 located in the push rod cavity 111 is fixedly connected to the lower end surface of the rotating plate 118, and the electric push rod 108 is fixedly connected to the sliding rod 109, so as to drive the sliding rod 109 to move up and down;

[0024] The motor 103 is connected to the rotating plate 118 by power, and the motor 103 can drive the rotating plate 118 to rotate, thereby driving the first water baffle 105, the second water baffle 106 and the third water baffle 107 to rotate, so as to control the flow of water;

[0025] The control valve body 100 is provided with two left-right symmetrical connection grooves 104 , through which the inlet and outlet water pipes are sealedly connected.

[0026] Working principle:

[0027] In the initial state, the connecting rod 110 is located in the first water baffle plate 105, and the two connecting grooves 104 of the control valve body 100 are sealed and connected to the inlet and outlet pipes, and then water is passed. When water flows through, the second water baffle plate 106 and the third water baffle plate 107 are driven to rotate to a vertical state with the control valve body 100, and then the motor 103 is started, and the motor 103 drives the rotating plate 118 and the electric push rod 108 to rotate, and the electric push rod 108 drives the sliding rod 109 and the connecting rod 110 to rotate, and the connecting rod 110 drives the first water baffle plate 105 to rotate, and the flow rate of water passing through is controlled by the rotation of the first water baffle plate 105;

[0028] When it is necessary to further block the water flow, first drive the first water baffle 105 to rotate to a vertical state with the control valve body 100, then start the electric push rod 108, the electric push rod 108 drives the sliding rod 109 to move downward, the sliding rod 109 drives the connecting rod 110 to move downward into the second water baffle 106, and then start the motor 103 to drive the first water baffle 105 and the second water baffle 106 to rotate synchronously, so that the water flow can be blocked to a greater extent, and the water flow rate can be controlled. By moving the connecting rod 110 downward into the third water baffle 107, the first water baffle 105, the second water baffle 106 and the third water baffle 107 can be driven by the motor 103 to rotate synchronously to control the water flow to the greatest extent, and the water flow can be completely blocked, so that the water flow can be controlled in stages, which is more accurate and has a small error.

[0029] It is obvious to those skilled in the art that various modifications and variations may be made to the disclosed embodiments. Other embodiments will be readily apparent to those skilled in the art in view of the specification and practice of the disclosed system. It is intended that the specification and examples be considered exemplary only, with the true scope of protection being determined by the appended claims and their equivalents.

Claims

1. A step-by-step speed control valve, comprising a control valve body (100), characterized in that: The control valve body (100) is provided with a coaxially aligned annular groove (116) and a through hole (117); a connecting annular plate (112) is provided in the annular groove (116); the connecting annular plate (112) is rotatably connected to a third water baffle plate (107); the third water baffle plate (107) is provided with an annular convex plate (115); the third water baffle plate (107) is rotatably connected to a second water baffle plate (106) via the annular convex plate (115); the second water baffle plate (106) is rotatably connected to the second water baffle plate (106) via the annular convex plate (115); 5) is rotatably connected to a first water baffle plate (105); the first water baffle plate (105) is slidably connected to a sliding rod (109) passing through the second water baffle plate (106) and the third water baffle plate (107) in an up-and-down manner; the lower end surface of the sliding rod (109) is fixedly connected to a connecting rod (110); the lower sides of the first water baffle plate (105), the second water baffle plate (106) and the third water baffle plate (107) are provided with a clamping groove (114); the connecting rod (110) is fixedly connected to a clamping strip (113).

2. A graded speed control valve according to claim 1, characterized in that: The upper side of the control valve body (100) is fixedly connected to a connecting pipe (101), the upper end surface of the connecting pipe (101) is fixedly connected to a connecting plate (102), and the upper end surface of the connecting plate (102) is fixedly connected to a motor (103).

3. A graded speed control valve according to claim 2, characterized in that: A push rod cavity (111) is provided in the connecting tube (101); the lower end surface of the connecting plate (102) is rotatably connected to a rotating plate (118) located in the push rod cavity (111); the lower end surface of the rotating plate (118) is fixedly connected to an electric push rod (108) located in the push rod cavity (111); and the electric push rod (108) is fixedly connected to the sliding rod (109).

4. A graded speed control valve according to claim 3, characterized in that: The motor (103) is in power connection with the rotating plate (118), and the motor (103) can drive the rotating plate (118) to rotate.

5. A graded speed control valve according to claim 4, characterized in that: The control valve body (100) is provided with two left-right symmetrical connection grooves (104), and the inlet and outlet water pipes are sealedly connected via the connection grooves (104).

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