Two-way on-off control pinch valve

Abstract

The pinch valve comprises a fixing plate, a steering engine is installed on the side portion of the fixing plate, a rocker arm is installed on an output shaft of the steering engine, the rocker arm is located in a limiting plate, the limiting plate is fixedly connected to the top of the fixing plate, silicone tubes are arranged on the two sides of the driven end of the rocker arm respectively, and the silicone tubes penetrate through the limiting plate. A circular hole and a fan-shaped hole are formed in the limiting plate, the circular hole is communicated with the fan-shaped hole, the driving end of the rocker arm is installed in the circular hole, the driven end of the rocker arm is installed in the fan-shaped hole, the end portion of the driven end of the rocker arm is of a semicircular structure, and the semicircular structure is in sliding connection with the hole wall of the fan-shaped hole. According to the pinch valve for two-way on-off control, the rocker arm is driven by the steering engine to swing left and right, two-way on-off control over the silicone tube is achieved, and the pinch valve for two-way on-off control has the advantages of being low in cost, small in power, low in heat productivity and low in noise.

Description

TECHNICAL FIELD

[0001] The utility model relates to a double -way on -off control is with pinch valve belongs to fluid control technical field. BACKGROUND

[0002] Pinch valve, also known as pinch valve or extrusion valve, is a kind of valve that controls fluid on-off by extruding elastic pipe through external mechanical force. Its core design is to realize the opening and closing and regulation of fluid by clamping or releasing elastic pipe, and it is widely used in the working condition of handling particle-containing, high-viscosity or corrosive medium.

[0003] At present, pinch valve adopts electromagnet pressure, extrudes elastic pipe to control fluid on-off, and this structure is considered to still have the following technical problems through practice:

[0004] Large-current power supply is needed, and there is the case of not clamping tightly;

[0005] There is a heating problem, and coil temperature rise may be caused by long-time power-on, which requires heat dissipation design;

[0006] There is a noise problem, and electromagnetic iron will collide to produce sound when working, forming noise.

[0007] As can be seen from the above, the prior art has obvious inconvenience and defects in actual use, so it is necessary to improve. CONTENT OF THE UTILITY MODEL

[0008] The utility model provides a kind of pinch valve for double-way on-off control according to the deficiency in background art, left and right swing of steering engine is driven to realize the double-way on-off control of silica gel pipe, with the characteristics of low cost, small power, low heat release and small noise.

[0009] To solve the above technical problems, the utility model adopts the following technical solutions:

[0010] A kind of pinch valve for double-way on-off control, including fixed plate, fixed plate side portion is equipped with steering engine, output shaft of steering engine is equipped with rocker arm, rocker arm is located in limit plate, limit plate is fixedly connected to the top of fixed plate, the both sides of rocker arm driven end are respectively equipped with silica gel pipe, silica gel pipe is set through limit plate.

[0011] Further, the left and right sides of the end face of the fixed plate near the steering engine are respectively provided with first bending portions, and bolt holes are provided on the first bending portions.

[0012] Further, the top of the fixed plate is provided with a second bending portion, the second bending portion is arranged in the opposite direction of the first bending portion, and a plurality of bolt holes are provided on the second bending portion.

[0013] Further, the rudder body is provided with side plates on the left and right sides, and bolt holes are arranged on the side plates, the bolt holes of the side plates are arranged in one-to-one correspondence with the bolt holes on the first bending part, and the side plates are fixedly connected with the first bending part through bolts.

[0014] Further, the end of the limiting plate is provided with a plurality of bolt holes, the bolt holes on the limiting plate are arranged in one-to-one correspondence with the bolt holes on the second bending part, and the limiting plate is fixedly connected with the second bending part through bolts.

[0015] Further, the limiting plate is provided with a round hole and a sector hole, the round hole and the sector hole are arranged in communication, the driving end of the rocker arm is installed in the round hole, and the driven end of the rocker arm is installed in the sector hole.

[0016] Further, the end of the rocker arm driven end is a semicircular structure, and the semicircular structure is in sliding connection with the hole wall of the sector hole.

[0017] Further, the silica gel tube is arranged in the sector hole in a penetrating mode.

[0018] Further, the end face of the fixing plate away from the rudder is provided with a circuit board, and two potentiometers are arranged on the circuit board.

[0019] Compared with the prior art, the above technical scheme has the following advantages:

[0020] When the rudder drives the rocker arm to swing to the left, the left silica gel tube can be pressed to close the flow, and the right silica gel tube can normally flow; when the rudder drives the rocker arm to swing to the right, the right silica gel tube can be pressed to close the flow, and the left silica gel tube can normally flow; the rudder drives the rocker arm to swing left and right, thereby realizing double-path on-off control of the silica gel tube, and having the characteristics of low cost, small power, low heat generation and small noise.

[0021] The utility model not only can be used for double-path on-off, but also can be applied to single-path on-off.

[0022] The utility model will be described in detail in combination with the drawings and examples. DRAWINGS

[0023] Figure 1 is the structure perspective drawing of the utility model;

[0024] Figure 2 is the structure perspective drawing of the utility model along another direction;

[0025] Figure 3 is the structure perspective drawing of the fixing plate;

[0026] Figure 4 is the distribution schematic view of the rocker arm and the limiting plate;

[0027] Figure 5 is a use state diagram of the utility model.

[0028] In the figure, 1 is a fixed plate, 11 is a first bending part, 12 is a second bending part, 2 is a limiting plate, 21 is a round hole, 22 is a sector hole, 3 is a rocker arm, 4 is a steering engine, 41 is a side plate, 5 is a circuit board, 6 is a silica gel tube, and 7 is a potentiometer. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation mode of the utility model will be explained by referring to the drawings.

[0030] As Figures 1-5 The utility model provides a kind of pinch valve for two-way on-off control, including fixed plate 1, fixed plate 1 side portion is equipped with steering engine 4, the output shaft of steering engine 4 is equipped with rocker arm 3, rocker arm 3 is located in limiting plate 2, limiting plate 2 is fixedly connected to the top of fixed plate 1, the both sides of driven end of rocker arm 3 are respectively equipped with silica gel tube 6, and silica gel tube 6 is set through limiting plate 2.

[0031] The left and right sides of the end face of the fixed plate 1 close to the steering engine 4 are respectively provided with a first bending part 11, and a bolt hole is arranged on the first bending part 11. A second bending part 12 is arranged on the top of the fixed plate 1, and the second bending part 12 is arranged in the opposite direction to the first bending part 11. A plurality of bolt holes are arranged on the second bending part 12.

[0032] The left and right sides of the main body of the steering engine 4 are respectively provided with a side plate 41, and a bolt hole is arranged on the side plate 41. The bolt holes of the side plate 41 and the bolt holes on the first bending part 11 are arranged one by one in correspondence. The side plate 41 and the first bending part 11 are connected by bolts.

[0033] A plurality of bolt holes are arranged on the end of the limiting plate 2. The bolt holes on the limiting plate 2 and the bolt holes on the second bending part 12 are arranged one by one in correspondence. The limiting plate 2 and the second bending part 12 are connected by bolts.

[0034] The limiting plate 2 is provided with a round hole 21 and a sector hole 22. The round hole 21 and the sector hole 22 are connected and arranged. The driving end of the rocker arm 3 is installed in the round hole 21. The driven end of the rocker arm 3 is installed in the sector hole 22. The end of the driven end of the rocker arm 3 is a semicircular structure. The semicircular structure is slidably connected with the hole wall of the sector hole 22 to ensure the stability of the rocking process of the rocker arm 3.

[0035] The silica gel tube 6 is arranged through the sector hole 22.

[0036] The end face of the fixed plate 1 away from the steering engine 4 is provided with a circuit board 5, and two potentiometers 7 are installed on the circuit board 5. The shaft handle of the potentiometer 7 can be rotated by using a screwdriver, the angle of the swing of the swing arm 3 is adjusted, different silica gel pipes 6 are adapted, and the current size is adjusted so as to adjust the clamping torque.

[0037] The specific working principle of the utility model is as follows:

[0038] When the steering engine 4 drives the swing arm 3 to swing to the left, the left silica gel pipe 6 is pressed to close the flow, and the right silica gel pipe 6 normally flows; when the steering engine 4 drives the swing arm 3 to swing to the right, the right silica gel pipe 6 is pressed to close the flow, and the left silica gel pipe 6 normally flows; the steering engine 4 drives the swing arm 3 to swing left and right, so that the double-way on-off control of the silica gel pipe 6 is realized.

[0039] The above is the example of the best implementation mode of the utility model, wherein the parts not described in detail are the common knowledge of the ordinary skilled in the art. The protection scope of the utility model is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. A pinch valve for dual-way on / off control, characterized in that: Includes a fixed plate (1), a servo motor (4) is installed on the side of the fixed plate (1), a rocker arm (3) is installed on the output shaft of the servo motor (4), the rocker arm (3) is located inside the limiting plate (2), the limiting plate (2) is fixed to the top of the fixed plate (1), and silicone tubes (6) are provided on both sides of the driven end of the rocker arm (3), and the silicone tubes (6) are set through the limiting plate (2).

2. The pinch valve for dual-circuit on / off control as described in claim 1, characterized in that: The fixing plate (1) has a first bending part (11) on the left and right sides of the end face near the servo motor (4), and each of the first bending parts (11) has a bolt hole.

3. A pinch valve for dual-way on / off control as described in claim 2, characterized in that: The top of the fixing plate (1) is provided with a second bending part (12), which is arranged in the opposite direction to the first bending part (11), and the second bending part (12) is provided with multiple bolt holes.

4. A pinch valve for dual-circuit on / off control as described in claim 3, characterized in that: The servo motor (4) has side plates (41) on its left and right sides respectively. The side plates (41) have bolt holes respectively. The bolt holes on the side plates (41) correspond one-to-one with the bolt holes on the first bent part (11). The side plates (41) and the first bent part (11) are fixedly connected by bolts.

5. A pinch valve for dual-way on / off control as described in claim 4, characterized in that: The end of the limiting plate (2) is provided with multiple bolt holes. The bolt holes on the limiting plate (2) correspond one-to-one with the bolt holes on the second bent part (12). The limiting plate (2) and the second bent part (12) are fixedly connected by bolts.

6. A pinch valve for dual-way on / off control as described in claim 1, characterized in that: The limiting plate (2) has a round hole (21) and a fan-shaped hole (22) connected to each other. The driving end of the rocker arm (3) is installed in the round hole (21), and the driven end of the rocker arm (3) is installed in the fan-shaped hole (22).

7. A pinch valve for dual-circuit on / off control as described in claim 6, characterized in that: The driven end of the rocker arm (3) has a semi-circular structure, which is slidably connected to the wall of the fan-shaped hole (22).

8. A pinch valve for dual-way on / off control as described in claim 7, characterized in that: The silicone tube (6) is disposed through the fan-shaped hole (22).

9. A pinch valve for dual-way on / off control as described in claim 1, characterized in that: A circuit board (5) is mounted on the end face of the fixed plate (1) away from the servo motor (4), and two potentiometers (7) are mounted on the circuit board (5).

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