阅读说明：本技术 调节阀 (Regulating valve ) 是由 钟福来 赵芳 詹宁 于 2019-09-19 设计创作，主要内容包括：调节阀,包括一个阀体(10)、一个柔性管(20)、数个调节叶片(30)和一个调节件(40)。阀体具有一个阀孔(11),阀孔沿一个第一方向(D1)贯通设置。柔性管通过阀孔穿设于阀体。数个调节叶片环绕柔性管排布。各调节叶片可转动地连接阀体,且转动轴线平行于该第一方向。各调节叶片在垂直于其转动轴线的一个径向方向上具有一个远离其转动轴线的调节端(311)。各调节叶片能够通过转动使其调节端沿垂直于该第一方向的轨迹伸入或退出阀孔,并通过抵靠柔性管调节柔性管的内径。调节件能够驱动数个调节叶片转动。该调节阀的密封性能较好。(The regulating valve comprises a valve body (10), a flexible pipe (20), a plurality of regulating blades (30) and a regulating piece (40). The valve body has a valve opening (11) which is arranged through in a first direction (D1). The flexible pipe passes through the valve opening and locates the valve body. The plurality of adjusting blades are arranged around the flexible pipe. Each adjusting blade is rotatably connected with the valve body, and the rotating axis is parallel to the first direction. Each of the adjustment vanes has an adjustment end (311) remote from its axis of rotation in a radial direction perpendicular to its axis of rotation. Each adjusting blade can make the adjusting end of the adjusting blade extend into or exit from the valve hole along a track perpendicular to the first direction through rotation, and the inner diameter of the flexible pipe is adjusted through abutting against the flexible pipe. The adjusting piece can drive the plurality of adjusting blades to rotate. The regulating valve has good sealing performance.)

1. The governing valve, its characterized in that includes:

a valve body (10) having a valve hole (11), the valve hole (11) being disposed through in a first direction (D1);

a flexible tube (20) passing through the valve hole (11) to the valve body (10);

a plurality of adjustment vanes (30), the plurality of adjustment vanes (30) being arranged around the flexible tube (20); each adjusting blade (30) is rotatably connected with the valve body (10) and the rotation axis is parallel to the first direction (D1); each of said adjustment vanes (30) having an adjustment end (311) remote from its axis of rotation in a radial direction perpendicular to its axis of rotation; each of the adjustment vanes (30) is capable of being rotated to extend its adjustment end (311) into or out of the valve hole (11) along a trajectory perpendicular to the first direction (D1), and to adjust the inner diameter of the flexible tube (20) by abutting against the flexible tube (20); and

an adjusting member (40) capable of driving the plurality of adjusting blades (30) to rotate.

2. The regulating valve according to claim 1, characterized in that the flexible tube (20) comprises:

a tubular portion (21) passing through the valve bore (11) to the valve body (10);

two burring parts (22) that connect both ends of the tubular part (21) in the first direction (D1), respectively; each of the turn-up portions (22) surrounds the tubular portion (21) and extends outwardly along a plane perpendicular to the first direction (D1).

3. The regulating valve according to claim 2, characterized in that the outer edge (221) of the flanging portion (22) is in the shape of a ring projecting in the first direction (D1) and in the opposite direction; the outer edges (221) of the two flange portions (22) are fitted into the respective end surfaces of the valve body (10) in the first direction (D1).

4. The regulating valve according to claim 3, further comprising two tubular fittings (50); the two tubular joints (50) are fixedly connected with two ends of the valve body (10) in the first direction (D1) respectively, and are in sealing connection with the two flanging parts (22) of the flexible pipe (20) respectively through abutting.

5. The regulating valve according to claim 1, characterized in that each of said regulating vanes (30) comprises:

a regulating sheet (31), said regulating end (311) being arranged on said regulating sheet (31), said regulating sheet (31) of said plurality of regulating vanes (30) being arranged along a plane perpendicular to the first direction (D1); and

a drive sheet (32) disposed on one side of the regulation sheet (31) in the first direction (D1); the adjusting piece (40) drives the adjusting blade (30) to rotate through the driving sheet layer (32); in every two adjacent regulating blades (30), the regulating sheet layer (31) of one regulating blade (30) is at least partially overlapped with the driving sheet layer (32) of the other regulating blade (30) along the first direction (D1).

6. The regulating valve according to claim 1, wherein said regulating end (311) of each of said regulating vanes (30) defines a receiving groove (312) for receiving said regulating end (311) of an adjacent said regulating vane (30); each adjusting blade (30) can be inserted into the accommodating groove (312) of the adjacent adjusting blade (30) through rotation.

7. The regulating valve according to claim 1, characterized in that each of said regulating vanes (30) has a regulating rod (33) extending in the first direction (D1); the regulating member (40) includes an annular portion (41), the annular portion (41) being disposed around the valve hole (11) and located on one side of the regulating vanes (30) in the first direction (D1); the annular portion (41) is rotatably connected to the valve body (10) with its axis of rotation parallel to the first direction (D1) and located inside the valve bore (11); the inner edge of the annular part (41) is sunken to form a plurality of sliding grooves (411); the adjusting rods (33) penetrate through the sliding grooves (411) in a one-to-one correspondence mode, and can slide in the sliding grooves (411) under the pushing of the groove walls of the sliding grooves (411) when the annular portion (41) rotates, so that the adjusting blades (30) are driven to rotate in the same hour hand direction.

8. The regulating valve according to claim 7, characterized in that the valve body (10) has an annular chamber (12) surrounding the valve bore (11), the regulating vanes (30) and the annular portion (41) being arranged in the annular chamber (12); the adjusting piece (40) further comprises an adjusting handle (42), one end of the adjusting handle (42) is connected with the annular part (41), and the other end of the adjusting handle extends to the outer side of the valve body (10).

9. The regulator valve according to claim 8, further comprising a return spring (60) connecting the valve body (10) and an end of the regulating handle (42) located outside the valve body (10) to continuously apply a force to the regulating handle (42) capable of withdrawing the regulating end (311) of the plurality of regulating vanes (30) from the valve hole (11).

10. The regulating valve according to claim 8, characterized in that the wall of the annular chamber (12) is in sliding engagement with the outer edge (221) of the annular portion (41) to define the axis of rotation of the annular portion (41).

11. The regulator valve according to claim 1, further comprising an actuator (70), said actuator (70) being connected to said valve body (10) and being capable of driving said regulating member (40) to rotate said plurality of regulating vanes (30).

Technical Field

The invention relates to a regulating valve, in particular to a regulating valve with good sealing performance.

Background

Currently, the flaps of most regulating valves are located in the conduit for the passage of the fluid, in use in direct contact with the fluid. The valve clack position can be adjusted by moving the valve rod to control the valve opening. The valve rod needs to penetrate through the valve body, so that a dynamic seal is needed between the valve rod and the valve body. Because the dynamic seal has a wear problem, the long-term use can influence the sealing effect.

Disclosure of Invention

The invention aims to provide a regulating valve which is good in sealing performance.

The invention provides a regulating valve which comprises a valve body, a flexible pipe, a plurality of regulating blades and a regulating piece. The valve body has a valve hole, and the valve hole sets up along a first direction through-going. The flexible pipe passes through the valve opening and locates the valve body. The plurality of adjusting blades are arranged around the flexible pipe. Each adjusting blade is rotatably connected with the valve body, and the rotating axis is parallel to the first direction. Each adjustment vane has an adjustment end remote from its axis of rotation in a radial direction perpendicular to its axis of rotation. Each adjusting blade can make the adjusting end of the adjusting blade extend into or exit from the valve hole along a track perpendicular to the first direction through rotation, and the inner diameter of the flexible pipe is adjusted through abutting against the flexible pipe. The adjusting piece can drive the plurality of adjusting blades to rotate.

The adjusting valve can extrude the flexible pipe to different degrees by driving the adjusting blade to rotate, so that the inner diameter of the flexible pipe is changed, and the function of adjusting the fluid flow is achieved. When the regulating valve is used, the whole valve can be sealed only by static sealing of two ports of the flexible pipe, so that dynamic sealing is not needed, the reliability is higher, and the service life is longer.

In another exemplary embodiment of the regulator valve, the flexible tube includes a tubular portion and two crimping portions. The tubular part passes through the valve hole and is arranged in the valve body. The two burring portions connect both ends of the tubular portion in the first direction, respectively. Each of the flanged portions surrounds the tubular portion and extends outwardly along a plane perpendicular to the first direction. The structure is simpler and the sealing effect is better.

In a further exemplary embodiment of the regulating valve, the outer edge of the cuff is in the shape of a ring projecting in the first direction and in the opposite direction. The outer edges of the two flanging parts are respectively embedded into two end faces of the valve body along the first direction. Thereby improving the sealing effect.

In a further exemplary embodiment of the regulating valve, the regulating valve further comprises two tubular connections. The two tubular joints are respectively and fixedly connected with two ends of the valve body in the first direction and are respectively and hermetically connected with two flanging parts of the flexible pipe through abutting. But two tubulose joints of external pipeline lug connection to avoid repeated dismouting to the wearing and tearing of flexible tube, do benefit to the life of extension governing valve.

In a further exemplary embodiment of the regulating valve, each regulating vane comprises a regulating lamella and a drive lamella. The adjusting end is arranged on the adjusting sheet layer. The adjusting sheet layers of the adjusting blades are arranged along a plane perpendicular to the first direction. The driving sheet is disposed on one side of the regulating sheet in the first direction. The adjusting piece drives the adjusting blade to rotate through the driving sheet layer. In every two adjacent adjusting blades, the adjusting sheet layer of one adjusting blade and the driving sheet layer of the other adjusting blade are at least partially overlapped all the time along the first direction. The mechanical strength of the regulating valve can be improved by the mutual abutting of the regulating blades.

In a further exemplary embodiment of the regulating valve, the regulating end of each regulating vane forms a receiving groove for receiving the regulating end of an adjacent regulating vane. Each adjusting blade can extend into the accommodating groove of the adjacent adjusting blade through rotation. Therefore, space yielding is realized, and the size of the regulating valve is favorably reduced.

In a further exemplary embodiment of the regulating valve, each regulating vane has a regulating rod extending in the first direction. The adjusting member includes an annular portion disposed around the valve hole and located on one side of the plurality of adjusting vanes in the first direction. The annular part is rotatably connected with the valve body, and the rotation axis of the annular part is parallel to the first direction and is positioned in the valve hole. The inner edge of the annular part is sunken to form a plurality of sliding grooves. The plurality of adjusting rods penetrate through the plurality of sliding grooves in a one-to-one correspondence mode, and can slide in the sliding grooves under the pushing of the groove walls of the sliding grooves when the annular parts rotate, so that the plurality of adjusting blades are driven to rotate along the same hour-hand direction. The structure is simple and the stability is good.

In a further exemplary embodiment of the control valve, the valve body has an annular space surrounding the valve opening. The plurality of adjusting blades and the annular part are arranged in the annular cavity. The adjusting member further comprises an adjusting handle. One end of the adjusting handle is connected with the annular part, and the other end of the adjusting handle extends to the outer side of the valve body. And important components are arranged in the annular cavity, so that the overall stability of the regulating valve is improved.

In yet another illustrative embodiment of the regulator valve, the regulator valve further includes a return spring connecting the valve body and an end of the regulator handle located outside the valve body to continuously apply a force to the regulator handle that causes the regulating ends of the plurality of regulating vanes to exit the valve bore. Therefore, the two-way adjustment of the opening degree of the valve can be realized only by providing unidirectional driving force for the adjusting handle, the requirement on a driving mechanism is reduced, and the cost is saved.

In yet another illustrative embodiment of the regulator valve, a wall of the annular cavity is in sliding engagement with an outer edge of the annular portion to define an axis of rotation of the annular portion. This structure does benefit to save space and is convenient for process.

In a further exemplary embodiment of the regulating valve, the regulating valve further comprises an actuator. The executor is connected the valve body and can drive the regulating part to drive the several and adjust the blade and rotate.

Drawings

The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.

Fig. 1 is a schematic illustration of an exemplary embodiment of a control valve.

Fig. 2 is an exploded view of the regulator valve shown in fig. 1.

Fig. 3 is a cross-sectional view of the regulator valve shown in fig. 1.

FIG. 4 is a top view of the valve body of the regulator valve shown in FIG. 1 in a first direction.

Fig. 5 is a schematic diagram of the structure of the flexible tube of the regulator valve shown in fig. 1.

Fig. 6 is a view showing a state of use of the regulating vane and the flexible tube of the regulating valve shown in fig. 1.

Fig. 7 is a schematic view of a regulating vane of the regulating valve shown in fig. 1.

Fig. 8 is a view showing another use state of the regulating vane and the flexible tube of the regulating valve shown in fig. 1.

FIG. 9 is a schematic diagram of another illustrative embodiment of a regulator valve.

Description of the reference symbols

10 valve body

11 valve hole

12 annular cavity

20 flexible pipe

21 tubular part

22 turnup part

221 outer edge

30 adjusting blade

31 regulating sheet

311 regulating terminal

312 accommodating groove

32 drive slice

33 adjusting rod

34 rotating rod

40 adjustment piece

41 annular portion

411 chute

42 adjusting handle

50 tubular joint

60 return spring

70 actuator

D1 first direction

Detailed Description

In order to more clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals indicate the same or structurally similar but functionally identical elements.

"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.

In this document, "first", "second", etc. do not mean their importance or order, etc., but merely mean that they are distinguished from each other so as to facilitate the description of the document.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, for simplicity and clarity of understanding, only one of the components having the same structure or function is schematically illustrated or labeled in some of the drawings.

Fig. 1 is a schematic illustration of the structure of an exemplary embodiment of a control valve, fig. 2 is a corresponding exploded view and fig. 3 is a corresponding sectional view. As shown in fig. 1 to 3, the regulator valve includes a valve body 10, a flexible tube 20, six regulating vanes 30, and a regulating member 40, wherein the flexible tube is omitted from fig. 2. Fig. 4 is a top view of the valve body 10 shown in fig. 1 in a first direction D1. As shown in fig. 4, the valve body 10 has a valve hole 11, and the valve hole 11 is penetratingly disposed in a first direction D1. The flexible tube 20 is inserted through the valve body 10 through the valve hole 11 and is used for fluid to pass through.

Fig. 5 is a schematic structural view of the flexible tube 20. As shown in fig. 3 and 5, the flexible tube 20 includes a tubular portion 21 and two burring portions 22. The tubular portion 21 is inserted through the valve body 10 through the valve hole 11. The two burring portions 22 connect both ends of the tubular portion 21 in the first direction D1, respectively. Each of the burring portions 22 surrounds the tubular portion 21 and extends outward along a plane perpendicular to the first direction D1. The sealing of the regulating valve against the flange 22 is achieved when the regulating valve is connected to an external pipe, and the sealing structure is simple and has a good sealing effect, but is not limited thereto. The flexible tube is made of, for example, a flexible rubber material, and has good ductility and restoring force. Alternatively, the flexible tube may also be made of a rubber membrane with a long service life.

In the present exemplary embodiment, the outer edge 221 of the burring 22 has a ring shape that protrudes in the first direction D1 and in the opposite direction. The outer edges 221 of the two burring portions 22 are fitted into the respective end surfaces of the valve body 10 in the first direction D1. Specifically, two end faces of the valve body 10 in the first direction D1 are respectively provided with a groove corresponding to the outer edge 221 of the flanged portion 22, and the outer edge 221 can be inserted into the corresponding groove. Thereby improving the sealing effect. But is not limited thereto.

As shown in fig. 2 and 3, the valve body 10 has an annular chamber 12 surrounding the valve bore 11. Six adjustment vanes 30 are provided in the annular chamber 12.

As shown in fig. 1 to 3, in the present exemplary embodiment, the valve body 10 is formed by combining two components, which enclose an annular chamber 12, whereby assembly may be facilitated, but is not limited thereto. As shown in fig. 2, six regulating vanes 30 are enclosed in a ring shape. Fig. 6 is a view for explaining the positional relationship of the six regulating vanes 30 and the flexible tube 20, with the viewing direction being the opposite direction to the first direction D1. As shown in fig. 6, six regulating vanes 30 are arranged around the flexible tube 20.

Fig. 7 is a schematic structural view of the adjustment blade 30. As shown in fig. 2 and 7, each of the regulating vanes 30 has a rotating lever 34 extending in the first direction D1. The rotating rod 34 is rotatably inserted in the valve body 10, and the rotating axis is parallel to the first direction D1. Each of the adjustment vanes 30 has an adjustment end 311 remote from its rotational axis in a radial direction perpendicular to its rotational axis. Each of the adjustment vanes 30 is capable of extending its adjustment end 311 into or out of the valve hole 11 along a trajectory perpendicular to the first direction D1 by being rotated, and adjusting the inner diameter of the flexible tube 20 by abutting against the flexible tube 20. Fig. 6 and 8 show the change in the inner diameter of the flexible tube 20 when the adjustment blade 30 is in different rotational positions, respectively. In fig. 6, the inner diameter of the flexible tube 20 is the largest, and the opening of the regulating valve is the largest; in fig. 8, the flexible tube 20 has a zero inner diameter and does not allow fluid to pass through, and the opening of the regulating valve is minimized. The movement direction of the regulating blade 30 is basically vertical to the fluid flow direction, and the actuating force for driving the regulating blade to rotate is smaller when the flow is regulated, so that the valve can be closed under higher pressure difference.

The adjusting member 40 can drive the six adjusting blades 30 to rotate. Specifically, in the present exemplary embodiment, as shown in fig. 2 and 7, each of the adjustment blades 30 has one adjustment lever 33 extending in the first direction D1. The adjustment lever 33 and the rotation lever 34 are respectively provided at both ends of the adjustment blade 30 in the first direction D1. The adjusting lever 33 and the rotating lever 34 are respectively provided on surfaces of the adjusting blades 30 facing away from each other and protrude in opposite directions. For example, the adjustment lever 33 extends in a first direction D1, and the rotation lever extends in a direction opposite to the first direction. As shown in fig. 2, the regulating member 40 includes an annular portion 41 and a regulating handle 42, and the annular portion 41 is disposed around the valve hole 11 and located on one side of the six regulating vanes 30 in the first direction D1. The annular portion 41 is rotatably connected to the valve body 10 with its rotational axis parallel to the first direction D1 and located within the valve hole 11. The inner edge of the annular portion 41 is recessed to form six sliding slots 411 (only one of which is indicated in the drawings). The six adjusting rods 33 are correspondingly inserted into the six sliding slots 411 one by one, and can slide in the sliding slots 411 under the pushing of the slot walls of the sliding slots 411 when the annular portion 41 rotates, so as to drive the six adjusting blades 30 to rotate simultaneously in the same clockwise direction. But not limited thereto, in other exemplary embodiments, the sliding slot 411 may also be a sliding hole. The annular part 41 is arranged in the annular cavity 12, and one end of the adjusting handle 42 is connected with the annular part 41, and the other end extends to the outer side of the valve body 10 and is used for driving the annular part 41 to rotate.

The control valve of the present exemplary embodiment can press the flexible tube 20 to various degrees by driving the control blade 30 to rotate, thereby changing the inner diameter of the flexible tube 20, thereby performing a function of controlling the flow rate of the fluid. When the regulating valve is used, the whole valve can be sealed only by static sealing of two ports of the flexible pipe 20, so that dynamic sealing is not needed, the reliability is higher, and the service life is longer.

In the present exemplary embodiment, the number of the regulating vanes 30 is set to six, but is not limited thereto, and in other exemplary embodiments, the number of the regulating vanes 30 may also be adjusted as needed. The driving mode of the adjusting blade is not limited to the example given in fig. 2, and can be realized by other transmission mechanisms. For example, rotation of the adjustment blade in a direction perpendicular to the first direction D1 may be converted into linear motion in a certain direction, or into rotational motion about a certain axis perpendicular to the first direction D1.

In the present exemplary embodiment, the cavity wall of the annular cavity 12 is a sliding fit with the outer edge 221 of the annular portion 41 to define the axis of rotation of the annular portion 41. This structure does benefit to save space and is convenient for process. But is not limited thereto.

As shown in fig. 7, in the exemplary embodiment, each adjustment vane 30 includes one adjustment leaf 31 and one drive leaf 32. The adjustment end 311 is disposed on the adjustment sheet 31, and the adjustment bar 33 is disposed on the driving sheet 32. The adjustment sheet layers 31 of six adjustment blades 30 are arranged along a plane perpendicular to the first direction D1. The driver sheet 32 is disposed on one side of the regulator sheet 31 in the first direction D1. With reference to fig. 2, 6 and 8, in every two adjacent adjustment blades 30, the adjustment sheet 31 of one adjustment blade 30 and the driving sheet 32 of the other adjustment blade 30 are always partially overlapped along the first direction D1. Whereby the mechanical strength of the regulating valve can be increased by the mutual abutment of the regulating vanes 30.

As shown in fig. 7, in the exemplary embodiment, the adjustment end 311 of each adjustment blade 30 forms an accommodation groove 312 for accommodating the adjustment end 311 of an adjacent adjustment blade 30. As shown in fig. 8, the regulating end 311 of each regulating blade 30 can be inserted into the receiving groove 312 of the adjacent one of the regulating blades 30 by rotation. Therefore, space yielding is realized, and when the adjusting blades rotate to the position with the minimum opening degree, the central opening area formed by the surrounding of each adjusting blade is smaller. In this case, the control valve can achieve almost no leakage at a minimum opening degree, taking into account the wall thickness and the flexibility redundancy of the flexible pipe itself. Simultaneously, this design still does benefit to the volume that reduces the governing valve.

As shown in fig. 1, in the exemplary embodiment, the regulator valve further includes a return spring 60 that connects the valve body 10 and one end of the regulator handle 42 located outside the valve body 10 to continuously apply a force to the regulator handle 42 that can withdraw the regulating ends 311 of the six regulating vanes 30 out of the valve hole 11. Therefore, the opening of the valve can be adjusted in two directions only by providing unidirectional driving force for the adjusting handle 42, the requirement on a driving mechanism is reduced, and cost saving is facilitated.

Fig. 9 is a schematic structural view of another exemplary embodiment of a regulator valve, which is additionally provided with two tubular joints 50 and an actuator 70 in addition to the regulator valve shown in fig. 1.

The two tubular joints 50 are fixedly connected to the two ends of the valve body 10 in the first direction D1, respectively, and are sealingly connected to the two flanged portions 22 of the flexible tube 20 by abutting against each other. The external pipeline can be directly connected with the two tubular joints 50, so that the abrasion of the flexible pipe 20 caused by repeated disassembly and assembly is avoided, and the service life of the regulating valve is prolonged.

The actuator 70 is connected to the valve body 10 and can drive the adjusting member 40 to rotate, so as to drive the adjusting blades 30 to rotate, thereby adjusting the opening of the valve. The attachment of the actuator 70 to the valve body 10 can improve the stability of the regulator valve.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications such as combinations, divisions or repetitions of features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.