Rotary valve capable of easily and accurately controlling filling flow

Abstract

The utility model discloses a rotary valve capable of easily and accurately controlling filling flow, and relates to the technical field of liquid filling equipment. The valve comprises a valve handle 1, a valve body 2 and a valve core rotating shaft 3, wherein the valve handle 1 is arranged at the end part of the valve core rotating shaft 3 penetrating out of the middle of the valve body 2; the outer contour of the front face of the valve handle 1 is in a fan shape, and the end of the valve element rotating shaft 3 is sleeved with a circle center hole of the fan shape. The rotary liquid filling device has the advantages of being simple in structure, low in maintenance and use cost, capable of achieving accurate filling, capable of achieving filling without bottles and the like, and can be used for rotary liquid high-speed filling.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid filling equipment technical field, especially a valve easy to accurate control filling flow. BACKGROUND

[0002] In prior art, high-speed liquid filling mainly has linear structure type filling, back-and-forth tracking type filling and rotary type filling and the like, the linear type filling usually adopts peristaltic pump, piston pump, pneumatic valve, electric valve, mechanical valve and the like to fill, only suitable for small capacity (i.e. 1-20ml / bottle), when the filling capacity is 30-500ml / bottle, the filling mode of this linear structure is its bottleneck; compared with the linear type filling, the back-and-forth tracking type filling has advantages in unit capacity, and the production speed is higher, but the precision requirement is higher, and when tracking filling returns, it is easy to produce shaking to cause dripping and flash filling, and when the filling capacity is 100ml / bottle and 200 bottles / minute, it may be the limit of this model; the rotary type filling mode usually uses pneumatic valve, electric valve, mechanical valve and the like to fill, and its application range is wide, and the production speed is fast.

[0003] Chinese patent (patent application number 91212247.1) discloses a butterfly valve with limiting device, which is composed of a valve body, a valve handle, a valve leaf, a sealing ring and a pressing block. The pressing block has a sector-shaped notch with an included angle of 120°, and a limiting screw is arranged on the valve handle corresponding to the notch of the pressing block. The pressing block is arranged at the joint of the valve body and the valve handle (the notch corresponds to the limiting screw on the valve handle), and the lower side is provided with a sealing ring. The pressing block fixes the sealing ring on the valve body by a rivet. In this way, the valve handle and the valve leaf can only rotate within the range of 120° under the action of the pressing block and the limiting screw, effectively avoiding the leakage accident caused by the damage of the sealing part of the valve leaf.

[0004] Another Chinese patent (patent application number 97234853.0) discloses a valve for directly using barrelled drinking water, which is composed of a clever head 2 and a valve handle body 7, and the two are connected by threads. The structure is provided with a water inlet channel. A valve core 3 is inserted into the clever head 2. The valve core structure is provided with a gas return channel composed of a gas return core 5 and a valve core shaft hole. The valve handle body is provided with a sector-shaped handle switch 6. The valve has the advantages of simple structure, convenient manufacturing, beautiful appearance, convenient carrying and use, and can avoid secondary pollution of barrelled drinking water. SUMMARY

[0005] The utility model solves the technical problem to provide a valve with simple structure, low maintenance and use cost, accurate filling, and no filling without bottle.

[0006] To solve the above technical problems, the utility model adopts the technical scheme that designs a valve easy to control filling flow accurately: including handle 1, valve body 2 and valve core rotating shaft 3, handle 1 sets up in the end of valve core rotating shaft 3 that is worn out in the middle of valve body 2, the front face outer contour of handle 1 is fan shape, and the center hole of fan shape is sleeved in the end of valve core rotating shaft 3.

[0007] The front face outer contour of handle 1 includes line segment b, a pair of symmetrical line segment c, a pair of symmetrical line segment d and line segment e, line segment b is circular arc line, line segment c and line segment d are straight lines, and line segment e is circular arc line, the both ends of line segment b are connected with the outer end of a pair of symmetrical line segment c, form fan shape, the inner end of a pair of symmetrical line segment c is connected with the outer end of a pair of symmetrical line segment d, and the both ends of line segment e are connected with the inner end of a pair of symmetrical line segment d, form small fan shape without circular arc line, and the center hole of fan shape is sleeved in the end of valve core rotating shaft 3.

[0008] The fan angle a of fan shape handle 1 is 120-150 °

[0009] Optimally, the fan angle a of fan shape handle 1 is 130-140 °.

[0010] Further optimally, the fan angle a of fan shape handle 1 is 135 °.

[0011] The valve easy to control filling flow accurately of the utility model adopts fan shape handle, pushes the side of fan shape, and can accurately realize the opening angle of valve core through valve core rotating shaft, and then can realize accurate filling, and simultaneously, it is mechanical valve, so its structure is simple, maintenance and use cost are lower, and can realize high-speed filling, and additionally, it can remove the roller that pushes the side of fan shape in use, so that it does not push the side of fan shape, can realize the function of not filling without bottle. ACCURACY

[0012] Figure 1 It is the front view schematic drawing of the utility model;

[0013] Figure 2 It is the left view schematic drawing of the utility model;

[0014] Figure 3 It is the plan schematic drawing of the utility model;

[0015] Figure 4 It is the front view enlarged schematic drawing of the handle of the utility model.

[0016] In the figure: 1 is the valve handle, 2 is the valve body, 3 is the valve core rotating shaft, the line segment b is the outer arc of the large sector of the valve handle, the line segment c is the side of the large sector of the valve handle, the line segment d is the side of the small sector of the valve handle, and the line segment e is the outer edge of the center hole sleeve of the large sector of the valve handle. DETAILED DESCRIPTION

[0017] The utility model will be further explained in connection with the drawings and examples. The following description is by way of example, but the protection scope of the utility model should not be limited thereto.

[0018] The direction in the specification and the drawings is as follows:

[0019] Figure 1 、 4 The front is actually the front, the inside is actually the back; the upper is actually the upper, the lower is actually the lower; the left and right are actually the left and right respectively;

[0020] Figure 2 The front is actually the left, the inside is actually the right; the upper is actually the upper, the lower is actually the lower; the left and right are actually the back and front respectively;

[0021] Figure 3 The front is actually the upper, the inside is actually the lower; the right is actually the right, the left is actually the left; the up and down are actually the back and front respectively.

[0022] Example 1:

[0023] The easy-to-accurately-control-filling-flow-rate rotating valve of the example is composed of a valve handle 1, a valve body 2 and a valve core rotating shaft 3.

[0024] The valve body 2 adopts a ball valve body, a valve core (not shown in the figure) in the inner cavity thereof is connected to the inner end of the valve core rotating shaft 3, the outer end of the valve core rotating shaft 3 is radially penetrated through the middle part of the valve body 2, and the end part is sleeved with the valve handle 1.

[0025] The outer contour of the valve handle 1 is in the shape of a sector, the sector-shaped center hole sleeve of the valve handle 1 is sleeved at the end part of the valve core rotating shaft 3, the sector angle a of the sector-shaped valve handle 1 can be 120-150°, the optimized sector angle a is 130-140°, and the sector angle a of the example is 135°.

[0026] Before use, a plurality of the easy-to-accurately-control-filling-flow-rate rotating valves of the example are uniformly arranged on a rotating filling rotating disc, an opening device for controlling the opening angle of the rotating valve and a closing device for resetting the closed rotating valve are arranged on a fixed control disc; the opening device is composed of a servo motor, an electric cylinder and an opening roller, and the closing device is composed of a gas cylinder and a resetting roller; the opening roller is arranged at the upper part of the valve handle 1, and the resetting roller is arranged at the lower part of the valve handle 1.

[0027] During use, when the filling rotary disc with the rotary valve rotates to the lower side of the opening device, the sector angle at the upper end of the valve handle 1 is immediately pushed by the opening roller and rotates counterclockwise around the axis of the valve core rotating shaft 3 (i.e., the center of the sector circle hole), as shown in Figs. 6 and 7, and at the same time, the valve core rotating shaft 3 also rotates, thereby bringing the valve core in the inner cavity of the valve body 2 to rotate, so as to open a certain angle. By controlling the rotation of the servo motor and then pushing the opening roller downward by the electric cylinder, the precise opening angle can be achieved. Figure 1 Figure 4 When the filling rotary disc with the rotary valve rotates to the lower side of the opening device, the sector angle at the upper end of the valve handle 1 is immediately pushed by the opening roller and rotates counterclockwise around the axis of the valve core rotating shaft 3 (i.e., the center of the sector circle hole), as shown in Figs. 6 and 7, and at the same time, the valve core rotating shaft 3 also rotates, thereby bringing the valve core in the inner cavity of the valve body 2 to rotate, so as to open a certain angle. By controlling the rotation of the servo motor and then pushing the opening roller downward by the electric cylinder, the precise opening angle can be achieved.

[0028] When the filling rotary disc with the rotary valve rotates to the lower side of the opening device, the sector angle at the upper end of the valve handle 1 is immediately pushed by the opening roller and rotates counterclockwise around the axis of the valve core rotating shaft 3 (i.e., the center of the sector circle hole), as shown in Figs. 6 and 7, and at the same time, the valve core rotating shaft 3 also rotates, thereby bringing the valve core in the inner cavity of the valve body 2 to rotate, so as to open a certain angle. By controlling the rotation of the servo motor and then pushing the opening roller downward by the electric cylinder, the precise opening angle can be achieved. Figure 1 Figure 4 When the filling rotary disc with the rotary valve rotates to the lower side of the opening device, the sector angle at the upper end of the valve handle 1 is immediately pushed by the opening roller and rotates counterclockwise around the axis of the valve core rotating shaft 3 (i.e., the center of the sector circle hole), as shown in Figs. 6 and 7, and at the same time, the valve core rotating shaft 3 also rotates, thereby bringing the valve core in the inner cavity of the valve body 2 to rotate, so as to open a certain angle. By controlling the rotation of the servo motor and then pushing the opening roller downward by the electric cylinder, the precise opening angle can be achieved.

[0029] Example 2:

[0030] The rotary valve for precisely controlling the filling flow in this embodiment is an improved type of the rotary valve in Example 1, which is different from the rotary valve in Example 1 in that the front outer contour of the valve handle 1 is composed of a line segment b, a pair of symmetrical line segments c, a pair of symmetrical line segments d, and a line segment e, the line segment b is an arc line, the line segments c and d are straight lines, and the line segment e is an arc line; the two ends of the line segment b are connected with the outer ends of the pair of symmetrical line segments c, forming a sector, the line segment b is the arc line of the sector, and the line segment c is the side line of the large sector; the sector angle a can be 120-150°, and the optimized sector angle a is 130-140°, and the sector angle a in this embodiment is 135°.

[0031] The inner ends of the pair of symmetrical line segments c are connected with the outer ends of the pair of symmetrical line segments d, and the two ends of the line segment e are connected with the inner ends of the pair of symmetrical line segments d, forming a small sector without arc line, and the line segment e becomes part of the center hole sleeve of the sector, and the sector angle of the small sector is smaller than the sector angle a; the center hole sleeve of the sector is installed at the end of the valve core rotating shaft 3, and the connection positions of all line segments are smoothly transitioned.

[0032] The other parts are basically the same as those in Example 1, which will not be described here.

[0033] The rotary valve for precisely controlling the filling flow can be used for rotary liquid high-speed filling.​​

Claims

1. A rotary valve for easy and precise control of filling flow rate, comprising a valve handle (1), a valve body (2), and a valve core shaft (3), wherein the valve handle (1) is disposed at the end of the valve core shaft (3) extending through the middle of the valve body (2); characterized in that: The front surface of the valve handle (1) is in the shape of a sector, and the center hole of the sector is sleeved on the end of the valve core rotating shaft (3).

2. The rotary valve for easily and accurately controlling the filling flow rate according to claim 1, wherein: The front surface of the valve handle (1) comprises a line segment b, a pair of symmetrical line segments c, a pair of symmetrical line segments d and a line segment e, the line segment b is an arc line, the line segments c and d are straight lines, and the line segment e is an arc line; the two ends of the line segment b are connected with the outer ends of the pair of symmetrical line segments c to form a sector; the inner ends of the pair of symmetrical line segments c are connected with the outer ends of the pair of symmetrical line segments d, and the two ends of the line segment e are connected with the inner ends of the pair of symmetrical line segments d to form a small sector without an arc line; and the center hole of the sector is sleeved on the end of the valve core rotating shaft (3).

3. The rotary valve for easy and precise control of the filling flow rate according to claim 1 or 2, characterized in that: The sector angle a of the sector-shaped valve handle (1) is 120-150°.

4. The rotating valve for easily and accurately controlling the filling flow rate according to claim 3, wherein: The sector angle a of the sector-shaped valve handle (1) is 130-140°.

5. The rotating valve for easily and accurately controlling the filling flow rate according to claim 4, wherein: The sector angle a of the sector-shaped valve handle (1) is 135°.

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