An umbrella-like regulating valve

Abstract

The present application relates to a kind of umbrella-shaped regulating valve, including inlet pipe and outlet pipe, inlet pipe and outlet pipe are connected with each other, and the periphery of the joint of inlet pipe and outlet pipe is equipped with multiple valve flap units, each valve flap unit is supported by inlet pipe and outlet pipe, each valve flap unit includes valve flap assembly, worm, worm wheel, valve shaft and passive sprocket, worm is engaged with worm wheel, one end of worm is supported by outlet pipe, the other end is connected passive sprocket, worm wheel is supported by valve shaft, one end of worm wheel is connected valve flap assembly, the passive sprocket of each valve flap unit is connected into external sprocket mechanism, under the drive of external sprocket mechanism, drive worm and worm wheel to rotate, close or open each valve flap assembly, when each valve flap assembly is closed, form sealed closure surface.Compared with prior art, the present application has the advantages of simple structure, powerful function, flow and pressure regulation for raw water and sewage treatment system, especially without filter device system, etc.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve, in particular to an umbrella-shaped regulating valve applicable to any garbage-containing waterway medium. BACKGROUND

[0002] In the process of raw water and sewage transportation or treatment, the valve often fails due to the existence of various garbage in the water medium. At present, only gate valves or ball valves can be used in the market, but the structural characteristics of these two valves determine that they can only be used for shut-off, and cannot be used for regulating flow and pressure, so there is still limitation in use. Although sleeve type valves can be used for regulating flow and pressure, their structural characteristics determine that they have weak garbage resistance, so a filter device must be installed at the front end. If the filter device is not cleaned in time, the function of the regulating valve will be lost, and if the garbage is serious, the filter screen of the front-end filter device will be broken.

[0003] Although rubber pinch valve can also be adjusted, but due to the reasons of rubber material strength, hardness, etc., it has low pressure resistance and relatively short service life, and the shape of its flow area determines that its flow regulation linearity is poor, and it cannot realize precise flow regulation function. SUMMARY

[0004] The purpose of the present application is to overcome the defects of the prior art, and to provide an umbrella-shaped regulating valve with simple structure, powerful function, and excellent flow regulation and pressure regulation for raw water and sewage treatment systems, especially for systems without filter devices.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] An umbrella-shaped regulating valve comprises an inlet pipe and an outlet pipe, the inlet pipe and the outlet pipe are connected to each other, a plurality of valve flap units are arranged around the connection between the inlet pipe and the outlet pipe, each valve flap unit is supported by the inlet pipe and the outlet pipe, each valve flap unit comprises a valve flap assembly, a worm, a worm gear, a valve shaft and a driven sprocket, the worm is in gear engagement with the worm gear, one end of the worm is supported by the outlet pipe, the other end of the worm is connected to the driven sprocket, the worm gear is supported by the valve shaft, one end of the worm gear is connected to the valve flap assembly, the driven sprockets of each valve flap unit are connected to an external sprocket mechanism, under the drive of the external sprocket mechanism, the worm and the worm gear are driven to rotate, each valve flap assembly is closed or opened, and a sealed closed surface is formed when each valve flap assembly is closed.

[0007] Further, the inlet pipe has a rotational symmetry structure, one end of the inlet pipe is provided with a first connecting flange, the other end of the inlet pipe is provided with a main flange, the main flange is connected to the outlet pipe, the main flange is provided with a plurality of first holes for fixing the worm, and the main flange is provided with a plurality of sealing rings, the sealing rings abut against the valve flap assembly when each valve flap assembly is closed.

[0008] Further, the worm is provided with a thrust bearing and a sealing baffle at one end close to the passive sprocket, the thrust bearing and the sealing baffle are sleeved outside the worm, and are positioned in and limited by the first hole, so as to restrict the axial movement of the worm when the valve is closed.

[0009] Further, the sealing ring is made of rubber, and the two side surfaces are sawtooth-shaped.

[0010] Further, the outlet pipe is a rotationally symmetrical structure, one end of the outlet pipe is provided with a second connecting flange, the other end is connected with the inlet pipe, and the end, where the outlet pipe is connected with the inlet pipe, is provided with a plurality of second holes for fixing the worm.

[0011] Further, the valve disc assembly comprises a valve disc body, a sealing rubber and a sealing pressing plate, the sealing rubber is fixed to one side of the valve disc body through the sealing pressing plate, the valve disc body is fan-shaped, when each valve disc assembly is closed, all the valve disc bodies are combined together to form an umbrella shape, and each valve disc assembly is sealed with each other through the sealing rubber.

[0012] Further, the regulating valve further comprises a worm and gear protection cover, the worm and gear protection cover is a half structure, and the worm and gear protection cover is installed at the meshing position of the worm and the gear.

[0013] Further, the external sprocket mechanism comprises a driving machine, a tensioning wheel, a driving sprocket and a chain, the tensioning wheel is arranged around the connection position of the inlet pipe and the outlet pipe, the driving sprocket is driven by the driving machine, and the chain is connected with each tensioning wheel, the driving sprocket and the passive sprocket.

[0014] Further, the external sprocket mechanism further comprises a sprocket mechanism protection cover, the sprocket mechanism protection cover covers the outside of the tensioning wheel, the driving sprocket, the passive sprocket and the chain.

[0015] Further, the driving machine is installed on the T-shaped support of the inlet pipe, the transmission shaft of the driving machine is fixed with the driving sprocket, the driving sprocket drives the chain, the chain drives the passive sprocket, and finally drives all the valve disc assemblies to move synchronously, and the tensioning wheel is used for adjusting the gap of the chain during movement.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] (1) In water system, the flow channel of large-scale flow regulating and pressure regulating valves is ideally designed to adopt an axial flow symmetrical structure. This type of flow has less vibration and cavitation and higher regulation accuracy. Currently, the main representative products on the market are piston valves and fixed cone valves. However, the structural characteristics of these valves determine that there should be no garbage in the medium. Therefore, filters need to be installed at the front end. The advantage of this valve is that it can achieve precise flow regulation and pressure regulation and is not afraid of any garbage. The front end does not need to be filtered. This not only reduces the construction cost of the project, but also brings great convenience to the user's daily equipment maintenance (no need to clean the filter frequently).

[0018] (2) In addition, even if a filter is installed at the front end of the piston valve, fixed cone and other sleeve valves cannot be used in sewage and raw water systems with a lot of mud and sand, because the filter cannot filter out the mud and sand, and the mud and sand will flow into the mating surface of the sleeve gate, thus blocking the operation of the sleeve gate and eventually causing the valve to fail. This valve does not have this problem. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of an umbrella-shaped regulating valve provided in an embodiment of the present invention;

[0020] Figure 2 This is a front cross-sectional view of the closed state of an umbrella-shaped regulating valve provided in an embodiment of the present invention;

[0021] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0022] Figure 4 This is a schematic diagram of the valve disc assembly structure of an umbrella-shaped regulating valve provided in an embodiment of the present invention;

[0023] Figure 5 for Figure 4 BB section diagram;

[0024] Figure 6 This is a right view showing the working state of an umbrella-shaped regulating valve provided in an embodiment of the present invention.

[0025] In the diagram, 1. Inlet pipe, 2. Outlet pipe, 3. Valve disc assembly, 301. Valve disc body, 302. Sealing rubber, 303. Sealing pressure plate, 4. Worm, 5. Worm wheel, 6. Worm and worm wheel protective cover, 7. Valve shaft, 8. Thrust bearing, 9. Sealing retaining ring, 10. Sealing ring, 11. Sprocket mechanism protective cover, 12. Drive motor, 13. Drive sprocket, 14. Tensioner wheel, 15. Chain, 16. Driven sprocket. Detailed Implementation

[0026] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0028] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] It should be noted that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] Embodiment 1

[0033] As Figures 1-3The embodiment shown provides an umbrella-shaped regulating valve, which comprises an inlet pipe 1 and an outlet pipe 2, the inlet pipe 1 and the outlet pipe 2 are connected to each other, a plurality of valve flap units are arranged around the connection between the inlet pipe 1 and the outlet pipe 2, each valve flap unit is supported by the inlet pipe 1 and the outlet pipe 2, each valve flap unit comprises a valve flap assembly 3, a worm 4, a worm wheel 5, a valve shaft 7 and a passive sprocket 16, the worm 4 is in gear with the worm wheel 5, one end of the worm 4 is supported by the outlet pipe 2, the other end of the worm 4 is connected to the passive sprocket 16, the worm wheel 5 is supported by the valve shaft 7, one end of the worm wheel 5 is connected to the valve flap assembly 3, the passive sprocket 16 of each valve flap unit is connected to an external sprocket mechanism, under the drive of the external sprocket mechanism, the worm 4 and the worm wheel 5 are driven to rotate, each valve flap assembly 3 is closed or opened, when each valve flap assembly 3 is closed, a sealed closed surface is formed.

[0034] As a preferred embodiment, as shown in Figure 4 and 5 The valve flap assembly 3 comprises a valve flap body 301, a sealing rubber 302 and a sealing pressing plate 303, the sealing rubber 302 is fixed on one side of the valve flap body 301 through the sealing pressing plate 303, the valve flap body 301 is in the shape of a fan, when each valve flap assembly 3 is closed, all the valve flap bodies 301 are combined together to form an umbrella shape, each valve flap assembly 3 is sealed with each other through the sealing rubber 302.

[0035] In the embodiment, the valve flap body 301 is installed on the valve shaft 7 located in the U-shaped support of the inlet pipe 1, when each fan-shaped valve flap assembly 3 is closed and combined together, it is in the shape of an umbrella, in the fully open state, each valve flap assembly 3 is close to the inner wall of the outlet pipe 2, so that the valve inner intermediate flow passage is in the shape of a straight pipe. The ratio of the valve flap opening degree and the actual flow area of the valve is basically linear, which can realize accurate flow regulation and pressure regulation.

[0036] It should be noted that the sealing rubber 302 and the sealing pressing plate 303 added in the embodiment are used to improve the sealing performance of the overall structure of the valve flap assembly 3, which belongs to a preferred embodiment, and only the valve flap body 301 can also realize the scheme.

[0037] As a preferred embodiment, as shown in Figure 6 The external sprocket mechanism comprises a driving machine 12, a tension pulley 14, a driving sprocket 13 and a chain 15, the tension pulley 14 is arranged around the connection between the inlet pipe 1 and the outlet pipe 2, the driving sprocket 13 is driven by the driving machine 12, and the chain 15 is connected to each tension pulley 14, the driving sprocket 13 and the passive sprocket 16.

[0038] The driving machine 12 is installed on the T-shaped support of the inlet pipe 1, the transmission shaft of the driving machine 12 is fixed with the driving sprocket 13, the driving sprocket 13 drives the chain 15, the chain 15 drives the passive sprocket 16, and finally drives all the valve flap assemblies 3 to make synchronous opening and closing movements, and the tension pulley 14 is used to adjust the gap when the chain 15 moves.

[0039] Preferably, the external sprocket mechanism further comprises a sprocket mechanism protective cover 11 which covers the outside of the tensioner 14, the driving sprocket 13, the driven sprocket 16 and the chain 15.

[0040] As an optional embodiment, the umbrella-shaped regulating valve in the embodiment comprises an inlet pipe 1 and an outlet pipe 2, valve disc assemblies 3 (N), worm gears 4 (N), worm wheels 5 (N), worm wheel and worm gear protective covers 6 (N), valve shafts 7 (N), thrust bearings 8 (N), sealing retainer rings 9 (N), an inlet pipe sealing ring 10, an external sprocket mechanism protective cover 11, a driving machine 12, driving sprockets 13 (N), tensioners 14 (N+1), a chain 15 and driven sprockets 16 (N).

[0041] The inlet pipe 1 is a rotationally symmetrical structure, has a first connecting flange at a small end, is connected to the outlet pipe 2 at a large flange end, and is inlaid with the sealing ring 10 at a terminal end; the N U-shaped supports are matched with the N valve shafts 7; the N first holes at the large flange end are matched with the N thrust bearings 8 and the N sealing retainer rings 9; and the upper T-shaped support is installed with the driving machine 12.

[0042] The outlet pipe 2 is a rotationally symmetrical structure, has a second connecting flange at one end, is connected to the inlet pipe 1 at the other end, and has N second holes inside for supporting tail portions of the N worm gears 4.

[0043] The worm gears 4 are N in number, are supported by the thrust bearings 8 at one end and by the outlet pipe 2 at a tail portion, extend out of the inlet pipe 1, and are installed with the driven sprockets 16; the worm wheels 5 are N in number, are inlaid at roots of the valve disc bodies 301, and have worm teeth meshing with T-shaped teeth of the worm gears 4.

[0044] The worm wheel and worm gear protective cover 6 is a half-shaped structure, is installed at a meshing portion of the worm gear 4 and the worm wheel 5, and prevents garbage from entering the meshing portion to affect transmission efficiency.

[0045] The valve shafts 7 are N in number, are installed on the U-shaped supports of the inlet pipe 1, and are used to constrain opening and closing movements of the valve disc assemblies 3.

[0046] The thrust bearings 8 and the sealing retainer rings 9 are N in number, are installed in the N holes of the large flange of the inlet pipe, are used to constrain axial movements of the worm gears 4 when the valve is closed, and prevent internal medium from entering the thrust bearings 8.

[0047] The inlet pipe sealing ring 10 is made of rubber, has jagged sides, is inlaid into a terminal end face of the inlet pipe 1, and is squeezed by the valve disc assemblies 3 in a closed state to play a sealing role.

[0048] The product has a specific operation process and an installation control diagram.

[0049] The driving machine of the product can be selected from a manual operating machine and an electric operating machine. The electric operating machine is generally used for the flow and pressure regulating working condition. When the flow and pressure after the valve are required, the PLC will send a suitable opening instruction to the valve according to the feedback signal of the flow or pressure sensor. When the garbage flows into the valve and is stuck on the valve disc, the flow or pressure will become smaller. The PLC will continue to send an instruction to the valve to continue to open the valve according to the feedback signal of the sensor until the garbage flows out and passes through. At this time, the flow will exceed the control value. The PLC will require the valve to be closed according to the feedback signal of the sensor until the flow or pressure reaches the required value. The valve disc is stable at a certain opening.

[0050] The preferred embodiments of the application are described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and changes without creative work based on the concept of the present application. Therefore, any technical solutions obtained by logical analysis, reasoning or limited experiments based on the prior art according to the concept of the present application shall be within the protection scope determined by the claims.

Claims

1. An umbrella-shaped regulating valve, comprising an inlet pipe (1) and an outlet pipe (2), said inlet pipe (1) and outlet pipe (2) being interconnected, characterized in that, Multiple valve disc units are provided around the connection between the inlet pipe (1) and the outlet pipe (2). Each valve disc unit is supported by the inlet pipe (1) and the outlet pipe (2). Each valve disc unit includes a valve disc assembly (3), a worm (4), a worm wheel (5), a valve shaft (7), and a driven sprocket (16). The worm (4) meshes with the worm wheel (5). One end of the worm (4) is supported by the outlet pipe (2), and the other end is connected to the driven sprocket (16). The worm wheel (5) is supported by the valve shaft (7), and one end of the worm wheel (5) is connected to the valve disc assembly (3). The driven sprocket (16) of each valve disc unit is connected to an external sprocket mechanism. Under the drive of the external sprocket mechanism, the worm (4) and the worm wheel (5) are rotated, which closes or opens each valve disc assembly (3) together. When each valve disc assembly (3) is closed, a sealed closed surface is formed. The inlet pipe (1) has a rotationally symmetrical structure. One end of the inlet pipe (1) is provided with a first connecting flange and the other end is provided with a main flange. The main flange is connected to the outlet pipe (2). The main flange is provided with multiple first holes for fixing the worm gear (4). The main flange is provided with multiple sealing rings (10). When each valve assembly (3) is closed, the sealing ring (10) abuts against the valve assembly (3). The outlet pipe (2) has a rotationally symmetrical structure. One end of the outlet pipe (2) is provided with a second connecting flange, and the other end is connected to the inlet pipe (1). The end of the outlet pipe (2) connected to the inlet pipe (1) is provided with multiple second holes for fixing the worm (4).

2. The umbrella-shaped regulating valve according to claim 1, characterized in that, The worm (4) is also provided with a thrust bearing (8) and a sealing ring (9) at one end near the passive sprocket (16). The thrust bearing (8) and the sealing ring (9) are both sleeved on the outside of the worm (4). The thrust bearing (8) and the sealing ring (9) are both located in the first hole and are limited by the first hole to constrain the axial movement of the worm (4) when the valve is closed.

3. The umbrella-shaped regulating valve according to claim 1, characterized in that, The sealing ring (10) is made of rubber and has a serrated shape on both sides.

4. The umbrella-shaped regulating valve according to claim 1, characterized in that, The valve assembly (3) includes a valve body (301), a sealing rubber (302), and a sealing plate (303). The sealing rubber (302) is fixed to one side of the valve body (301) by the sealing plate (303). The valve body (301) is fan-shaped. When each valve assembly (3) is closed, all valve bodies (301) are put together to form an umbrella shape. Each valve assembly (3) is sealed to each other by the sealing rubber (302).

5. The umbrella-shaped regulating valve according to claim 1, characterized in that, The regulating valve also includes a worm gear protective cover (6), which has a half-shaped structure and is installed at the meshing part of the worm (4) and the worm wheel (5).

6. The umbrella-shaped regulating valve according to claim 1, characterized in that, The external sprocket mechanism includes a drive motor (12), a tension wheel (14), a drive sprocket (13), and a chain (15). The tension wheel (14) is arranged around the connection between the inlet pipe (1) and the outlet pipe (2). The drive sprocket (13) is driven by the drive motor (12). The chain (15) connects each tension wheel (14), drive sprocket (13), and driven sprocket (16).

7. The umbrella-shaped regulating valve according to claim 6, characterized in that, The external sprocket mechanism also includes a sprocket mechanism protective cover (11), which covers the outside of the tension wheel (14), the driving sprocket (13), the driven sprocket (16) and the chain (15).

8. The umbrella-shaped regulating valve according to claim 6, characterized in that, The drive motor (12) is mounted on the T-shaped bracket of the inlet pipe (1). The drive shaft of the drive motor (12) and the drive sprocket (13) are fixed together. The drive sprocket (13) drives the chain (15), the chain (15) drives the passive sprocket (16), and finally drives all valve disc assemblies (3) to perform synchronous switching movements. The tension wheel (14) is used to adjust the gap when the chain (15) moves.

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