CN217234442U

CN217234442U - Flow control valve

Info

Publication number: CN217234442U
Application number: CN202220500729.5U
Authority: CN
Inventors: 石嘉
Original assignee: Comsat Automation Group Co ltd
Current assignee: Comsat Automation Group Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-08-19
Anticipated expiration: 2032-03-09

Abstract

The utility model discloses a flow control valve, which comprises a valve body, wherein one side of the valve body is communicated with a water inlet pipe, and the other side of the valve body is communicated with a water outlet pipe; an adjusting cavity is arranged in the valve body, a driving cavity is arranged below the adjusting cavity, and a transmission cavity is arranged above the adjusting cavity; valve clacks are arranged on two sides in the adjusting cavity, and valve rods are fixedly sleeved at the axes of the valve clacks; a valve seat is arranged in the adjusting cavity; a driving mechanism for driving any valve rod to rotate is arranged in the driving type cavity; a transmission mechanism is arranged between the two valve rods in the transmission cavity; the top of the valve body is provided with a controller, and the water outlet pipe is provided with a flow sensor. The utility model discloses a flow control valve can realize the automatic control of medium flow, and medium transmission flow uniformity is high.

Description

Flow control valve

Technical Field

The utility model relates to a, especially, relate to a flow control valve.

Background

The valve is a control part in a fluid conveying system, has the functions of stopping, regulating, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, is used for the valve of the fluid control system, and has quite a plurality of varieties and specifications from the simplest stop valve to various valves used in an extremely complicated automatic control system.

At present, the valves in the market mostly adopt manual control to control the flow, and when the flow fluctuates, manual adjustment is carried out, so that the adjustment timeliness is insufficient, and the adjustment precision is poor.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a flow control valve capable of automatically controlling the flow of a medium and having a high consistency of the medium transmission flow.

The utility model provides a flow control valve, which comprises a valve body, wherein one side of the valve body is communicated with a water inlet pipe, and the other side of the valve body is communicated with a water outlet pipe; an adjusting cavity is arranged in the valve body, a driving cavity is arranged below the adjusting cavity in the valve body, and a transmission cavity is arranged above the adjusting cavity in the valve body; the two sides in the adjusting cavity are symmetrically provided with semi-cylindrical valve clacks, the axis of each valve clack is fixedly sleeved with a valve rod, and the top end and the bottom end of each valve rod are respectively in rotary connection with the adjusting cavity through sealing bearings; a valve seat is arranged in the adjusting cavity and positioned at the water outlet pipe; the bottom end of any valve rod extends into the driving type cavity, and a driving mechanism for driving any valve rod to rotate is arranged in the driving type cavity; the top ends of the two valve rods extend into the transmission cavity, and a transmission mechanism is arranged between the two valve rods in the transmission cavity, so that the two valve rods synchronously and reversely rotate; the top of valve body is provided with the controller, be provided with flow sensor on the outlet pipe, actuating mechanism and flow sensor all with the controller electricity is connected.

Furthermore, the driving mechanism comprises a first bevel gear, the first bevel gear is fixedly sleeved at the bottom end of the valve rod extending into the driving type cavity, a second bevel gear is arranged on one side of the first bevel gear in a meshed mode, and a driving motor which drives the second bevel gear to rotate through a reduction box is arranged in the driving type cavity.

Further, drive mechanism including set up in two first drive gears in the transmission die cavity, the fixed cover of first drive gear one-to-one connect in the top of valve rod, two the meshing is provided with two second drive gears between the first drive gear.

Furthermore, one side of the valve clack close to the water outlet pipe is provided with a closed molded surface, and a sealing strip is fixedly arranged on the closed molded surface.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a flow control valve is provided with two semi-cylindrical's valve clacks, under actuating mechanism and drive mechanism's cooperation, can drive the clearance between two valve clacks to adjust the sectional area of medium circulation, and then adjust its flow. Through the cooperation of the flow sensor and the controller, the automatic adjustment of the flow is realized, and when the transmission medium fluctuates, the adjustment is carried out in time, so that the consistency of the transmission flow of the medium is ensured.

It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic top view of a flow control valve in a fully open state;

FIG. 2 is a schematic structural diagram of a flow control valve;

FIG. 3 is a schematic top view of the flow control valve in a half-open state;

fig. 4 is a schematic top view of the flow control valve in a closed state.

The reference numbers in the figures: 1. a valve body; 2. a valve clack; 3. a valve stem; 4. a valve seat; 5. a drive mechanism; 6. a transmission mechanism; 7. a controller; 8. a flow sensor;

11. a water inlet pipe; 12. a water outlet pipe; 13. adjusting the cavity; 14. driving the cavity; 15. a transmission cavity;

21. a closed profile; 22. a seal strip;

51. a first bevel gear; 52. a second bevel gear; 53. a reduction gearbox; 54. a drive motor;

61. a first drive gear; 62. a second transmission gear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 4, an embodiment of the present invention provides a flow control valve, which includes a valve body 1, one side of the valve body 1 is communicated with a water inlet pipe 11, and the other side is communicated with a water outlet pipe 12; an adjusting cavity 13 is arranged in the valve body 1, a driving cavity 14 is arranged in the valve body 1 below the adjusting cavity 13, and a transmission cavity 15 is arranged in the valve body 1 above the adjusting cavity 13; the two sides in the adjusting cavity 13 are symmetrically provided with semi-cylindrical valve clacks 2, the axis of the valve clack 2 is fixedly sleeved with a valve rod 3, and the top end and the bottom end of the valve rod 3 are respectively and rotatably connected with the adjusting cavity 13 through sealing bearings; the bottom end of any valve rod 3 extends into the driving cavity 14, and a driving mechanism 5 for driving any valve rod 3 to rotate is arranged in the driving cavity 14; the top ends of the two valve rods 3 extend into the transmission cavity 15, and a transmission mechanism 6 is arranged between the two valve rods 3 in the transmission cavity 15, so that the two valve rods 6 synchronously and reversely rotate; the top of the valve body 1 is provided with a controller 7, the water outlet pipe 12 is provided with a flow sensor 8, and the driving mechanism 5 and the flow sensor 8 are both electrically connected with the controller 7.

In this embodiment, the flow rate of the medium is monitored by the flow sensor 8 while the medium flows through the valve, and the monitored flow rate value is transmitted to the controller 7 to be compared with a flow rate value preset by the controller 7. When the monitored flow value is larger than the preset flow value, the controller 7 controls the driving mechanism 5 to drive the valve rod 3 to rotate, and under the action of the transmission mechanism 6, the gap between the two valve clacks 2 is reduced, and the transmission flow of the medium is reduced to be matched with the preset flow value; and when the monitored flow value is smaller than the preset flow value, the reverse driving is carried out. The monitoring flow value is always matched with the preset flow value, the consistency of the medium transmission flow is ensured, and the performance of the flow control valve is improved.

In a preferred embodiment, as shown in fig. 2, the driving mechanism 5 comprises a first bevel gear 51, the first bevel gear 51 is fixedly sleeved with the bottom end of the valve rod 3 extending into the driving cavity 14, a second bevel gear 52 is arranged at one side of the first bevel gear 51 in a meshed manner, and a driving motor 54 which drives the second bevel gear 52 to rotate through a reduction gearbox 53 is arranged in the driving cavity 14.

In the embodiment, the driving structure of the valve flap 2 adopts the driving motor 54 to match with the reduction gearbox 53, so that the output torque is high, the driving precision is high, and the accurate control of the medium flow is ensured.

In a preferred embodiment, as shown in fig. 2, the transmission mechanism 6 includes two first transmission gears 61 disposed in the transmission cavity 15, the first transmission gears 61 are fixedly sleeved on the top end of the valve stem 3 in a one-to-one correspondence, and two second transmission gears 62 are engaged between the two first transmission gears 61. The two valve rods 3 are driven by even transmission gears 61, so that the two valve rods 3 synchronously rotate in opposite directions, and the size of the gap between the two valve clacks 2 is adjusted.

In a preferred embodiment, as shown in fig. 1, 3 and 4, a closed profile 21 is provided on one side of the valve flap 2 close to the water outlet pipe 12, and a sealing strip 22 is fixedly provided on the closed profile 21. When two valve clacks 2 rotated to the laminating state, closed profile 21 laminated together, increased the closed area of contact of valve clack 2, add sealing strip 22 again, very big improvement the leakproofness after the valve clack 2 was closed.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flow control valve is characterized by comprising a valve body, wherein one side of the valve body is communicated with a water inlet pipe, and the other side of the valve body is communicated with a water outlet pipe; an adjusting cavity is arranged in the valve body, a driving cavity is arranged below the adjusting cavity in the valve body, and a transmission cavity is arranged above the adjusting cavity in the valve body; the two sides in the adjusting cavity are symmetrically provided with semi-cylindrical valve clacks, the axes of the valve clacks are fixedly sleeved with valve rods, and the top ends and the bottom ends of the valve rods are respectively in rotary connection with the adjusting cavity through sealing bearings; a valve seat is arranged in the adjusting cavity and positioned at the water outlet pipe; the bottom end of any valve rod extends into the driving type cavity, and a driving mechanism for driving any valve rod to rotate is arranged in the driving type cavity; the top ends of the two valve rods extend into the transmission cavity, and a transmission mechanism is arranged between the two valve rods in the transmission cavity, so that the two valve rods synchronously and reversely rotate; the top of valve body is provided with the controller, be provided with flow sensor on the outlet pipe, actuating mechanism and flow sensor all with the controller electricity is connected.

2. The flow control valve according to claim 1, wherein the driving mechanism comprises a first bevel gear fixedly sleeved on the bottom end of the valve rod extending into the driving cavity, a second bevel gear is meshed with one side of the first bevel gear, and a driving motor for driving the second bevel gear to rotate through a reduction gearbox is arranged in the driving cavity.

3. The flow control valve according to claim 2, wherein the transmission mechanism comprises two first transmission gears disposed in the transmission cavity, the first transmission gears are fixedly sleeved on the top end of the valve rod in a one-to-one correspondence, and two second transmission gears are engaged with each other between the two first transmission gears.

4. The flow control valve of claim 3, wherein a closed profile is arranged on one side of the valve flap close to the water outlet pipe, and a sealing strip is fixedly arranged on the closed profile.