CN209354671U - A kind of butterfly valve - Google Patents

Abstract

The utility model relates to a kind of butterfly valves, valve body including being provided with medium channel, at least three flaps have been arranged in juxtaposition in the medium channel in left-right direction, the flap shaft being rotatably assorted with the valve body is respectively and fixedly provided on each flap, the axis of each flap shaft is each perpendicular to the medium channel, and the flap rotating shaft fixed structure after corresponding flap rotation adjustment with corresponding flap shaft location fit flap position to be fixed is additionally provided on the valve body.In the utility model, each flap being arranged in juxtaposition is used to control the flow area of medium channel together, and each flap can carry out single movement respectively, two such flap closes when a flap movement is adjusted and forms a gear, one flap forms another gear when closing two flap movements, a new flow regulation stall is formed when three flaps act together again, to realize multi gear position for the adjusting of significantly flow.

Description

A kind of butterfly valve

Technical field

The utility model relates to the butterfly valves in valve field.

Background technique

Butterfly valve is called flap valve, is a kind of simple regulating valve of result, the switch control being usually used in low pressure pipeline medium. Existing dish valve one kind as disclosed in Chinese patent CN207961555U " butterfly valve ", the dish valve include the valve for being provided with medium channel Body is rotatably equipped with a pivot center perpendicular to the flap of medium channel on valve body.In use, rotation flap, adjustable Gap between flap and valve body, to change the actual internal area of medium channel, to achieve the purpose that change uninterrupted.But Be that current this dish valve has the following problems: flap only has one, that is to say, that dish valve can only carry out flow in a gear It adjusts, in actual production environment, needs to carry out large-scale flow adjusting sometimes, would have to this when carry out The replacement of butterfly valve uses unusual trouble.

Summary of the invention

The purpose of this utility model is to provide a kind of butterfly valves that the adjusting of multi gear bit traffic may be implemented.

In order to solve the above technical problems, the technical solution of the utility model is as follows:

A kind of butterfly valve, the valve body including being provided with medium channel have been arranged in juxtaposition in left-right direction in the medium channel At least three flaps are respectively and fixedly provided with the flap shaft being rotatably assorted with the valve body on each flap, and the axis of each flap shaft is equal Perpendicular to the medium channel, it is additionally provided on the valve body and matches after corresponding flap rotation adjustment with the positioning of corresponding flap shaft Close the flap rotating shaft fixed structure flap position to be fixed.

The cross sectional shape of the medium channel be it is rectangular, each flap be equal part described in medium channel square plate structure.

The flap rotating shaft fixed structure includes the threaded hole being set on the valve body, and the axis of threaded hole is perpendicular to valve Valve shaft, flap rotating shaft fixed structure further include being used to hold out against holding out against for corresponding flap shaft with what the threaded hole was threadedly engaged Screw.

The outer end of flap shaft externally protrudes out in the valve body, offers in the male end of the flap shaft perpendicular to the valve The handle hole for torque input of valve shaft.

The upper surface of the valve body is the upper plane perpendicular to the flap shaft, and the lower end surface of valve body is perpendicular to described The lower plane of flap shaft, the flap and flap shaft it is equal there are three, wherein position is in the flap shaft at middle part to fix It is convex under the middle part flap shaft for corresponding to flap lower end, the lower end of middle part flap shaft to form male end, position in the lower plane Setting the flap shaft in the left and right sides is to be fixed on the side flap shaft of corresponding flap upper end, side flap shaft it is upper It holds convex in the upper plane formation male end.

It is provided with the first pointer in the male end of the side flap shaft, is provided in upper plane and corresponding first pointer The first angle scale being used cooperatively；It is provided with the second pointer in the male end of the middle part flap shaft, is arranged on lower plane There is the second angle scale being used cooperatively with the second pointer.

The utility model has the following beneficial effects: each flap being arranged in juxtaposition is used for logical to medium together in the utility model The flow area in road is controlled, and each flap can carry out single movement respectively, and two such flap closes a flap A gear is formed when movement is adjusted, a flap forms another gear when closing two flap movements, and three flaps are together A new flow regulation stall is formed when movement again, to realize multi gear position for the adjusting of significantly flow.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of one embodiment of the utility model；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the bottom view of Fig. 1；

Fig. 4 is the structural schematic diagram of flap in Fig. 1；

Fig. 5 is the structural schematic diagram of flap shaft in side in Fig. 1.

Specific embodiment

A kind of implementation of dish valve is for example shown in Fig. 1 ~ 5: including valve body 6, Jie extended along the longitudinal direction is provided on valve body Matter channel 10, the cross sectional shape of medium channel are rectangular.It is arranged in juxtaposition in left-right direction in medium channel there are three flap 9, The flap shaft being rotatably assorted with valve body is respectively and fixedly provided on each flap, the flap shaft that position is in intermediate in the present embodiment is known as Middle part flap shaft 8, the flap shaft that position is in the left and right sides are known as side flap shaft 2.The upper end of middle part flap shaft It is fixed on the lower end of corresponding flap, and the lower end of middle part flap shaft externally protrudes out in the valve body and forms male end；Side flap turns The upper end of corresponding flap is fixed in the lower end of axis, and the upper end of side flap shaft externally protrudes out in the valve body and forms male end.Valve The structure of valve shaft is as shown in figure 5, one end is provided with installation step 13, and each flap 9 is respectively by respectively corresponding to mounting screw It is fixed on the installation step of corresponding flap shaft, the middle part of flap shaft is the cylindrical section being rotatably assorted with valve body, and flap turns The handle hole 1 for torque input perpendicular to flap shaft is offered in the male end of axis.Each flap is equal part medium channel Square plate structure.It is additionally provided on valve body after corresponding flap rotation adjustment with corresponding flap shaft location fit to flap The flap rotating shaft fixed structure that position is fixed, flap rotating shaft fixed structure include the threaded hole being set on the valve body, For the axis of threaded hole perpendicular to flap shaft, flap rotating shaft fixed structure further includes being threadedly engaged with the threaded hole for pushing up The Top fastening screw 3 of tight corresponding flap shaft.

The upper surface of valve body is the upper plane 5 perpendicular to the flap shaft, and the lower end surface of valve body is perpendicular to the valve The lower plane 7 of valve shaft, the male end of middle part flap shaft are convex convex under under upper plane, the male end of side flap shaft Plane.The first pointer 4 is provided in the male end of side flap shaft, being provided in upper plane makes with the cooperation of corresponding first pointer First angle scale 14；It is provided with 11 needle of the second finger in the male end of the middle part flap shaft, is provided on lower plane The second angle scale 12 being used cooperatively with the second pointer.

In use, the flow that three gears may be implemented is adjusted according to different flow regulatory demands, big rank is being needed It when flow is adjusted, can be acted together with three flaps, after flap movement, corresponding flap shaft is held out against by Top fastening screw The position of flap is fixed, when specific adjustment process, a pin shaft can be penetrated in corresponding handle hole, to pin shaft Force is very convenient to apply torque to flap shaft, and the protrusion direction of middle part flap shaft and side flap shaft is not Unanimously, operating space also has been reserved to operation, while has also reserved installation space for angle index.Needing small-scale flow When adjusting, by the flap connected in two side flap shafts adjust to medium channel upright position, no longer counter-lateral quadrents flap Shaft is operated, and is equivalent to and is closed two flaps, only carries out angle adjustment to the flap of the connection in the flap shaft of middle part.? In the other embodiments of the utility model: the number of flap can also be configured as needed, such as four, five or more It is more；Medium channel can also be circular configuration, and the marginal position of each flap need to be arranged to the corresponding arc with medium channel at this time The arcuate structure that inner wall is adapted to；Flap rotating shaft fixed structure can also be other structures, such as in the periphery of flap shaft The valve body location hole that multiple axis vertically extend circumferentially is offered, a positioning plate is fixed in each flap shaft, A positioning plate location hole corresponding with valve body location hole is opened up on positioning plate, by positioning in positioning plate location hole and valve body Alignment pin is installed between hole to realize the fixation to flap circumferential position.

Claims (6)

1. a kind of butterfly valve, the valve body including being provided with medium channel, it is characterised in that: in the medium channel in left-right direction simultaneously Column are disposed at least three flaps, and the flap shaft being rotatably assorted with the valve body, each flap shaft are respectively and fixedly provided on each flap Axis be each perpendicular to the medium channel, be additionally provided on the valve body after corresponding flap rotation adjustment and corresponding flap turn Flap rotating shaft fixed structure of the axis location fit flap position to be fixed.

2. butterfly valve according to claim 1, it is characterised in that: the cross sectional shape of the medium channel is rectangular, each flap For the square plate structure of medium channel described in equal part.

3. butterfly valve according to claim 1, it is characterised in that: the flap rotating shaft fixed structure includes being set to the valve Threaded hole on body, perpendicular to flap shaft, flap rotating shaft fixed structure further includes and the threaded hole spiral shell axis of threaded hole The Top fastening screw for being used to hold out against corresponding flap shaft of line cooperation.

4. butterfly valve according to claim 1, it is characterised in that: the outer end of flap shaft externally protrudes out in the valve body, the valve The handle hole for torque input perpendicular to the flap shaft is offered in the male end of valve shaft.

5. butterfly valve described in any one according to claim 1 ~ 4, it is characterised in that: the upper surface of the valve body is perpendicular to institute The upper plane of flap shaft is stated, the lower end surface of valve body is the lower plane perpendicular to the flap shaft, and the flap and flap turn There are three axis is equal, it is to be fixed on the middle part flap shaft of corresponding flap lower end, middle part that wherein position, which is in the flap shaft at middle part, Convex under the lower end of flap shaft to form male end in the lower plane, position be in the flap shaft of the left and right sides to be fixed on pair The side flap shaft of flap upper end is answered, the upper end of side flap shaft is convex to form male end in the upper plane.

6. butterfly valve according to claim 5, it is characterised in that: be provided with first in the male end of the side flap shaft Pointer is provided with the first angle scale being used cooperatively with corresponding first pointer in upper plane；Outside the middle part flap shaft It is provided with the second pointer on nose, the second angle scale being used cooperatively with the second pointer is provided on lower plane.