CN207729025U - A kind of worm-drive wafer type butterfly valve - Google Patents

Abstract

A kind of worm-drive wafer type butterfly valve of the utility model,Level-one groove body is offered at worm screw end,It is provided with inserting column in first-stage tank body,Two middle side parts are connected with raised line to inserting column up and down,Both sides four corners offer first recess to inserting column respectively up and down,Support plate is connected with by spring in first recess,On support plate card wheel is connected with by holder pivots,Handwheel side is connected with rotating cylinder at center,Two level groove body is offered in rotating cylinder,Two middle side parts offer second recess to two level groove body up and down,Handwheel is removably connect by the cooperation realization of rotating cylinder and inserting column with worm wheel head,Worm gear center is connected with sleeve,Sleeve both ends are rotationally connected in worm wheel head,Sleeve is connect with valve rod upper end,Sleeve upper end at the top of worm wheel head by passing through and being connected with instruction disk,It is provided with cover body outside instruction disk,Instruction disk periphery is equipped with scale,Indicate that disk is equipped with indicateing arm,It is safe,It is small and be convenient for control valve flow velocity.

Description

A kind of worm-drive wafer type butterfly valve

Technical field

The utility model is related to butterfly valve technical fields, and in particular to a kind of worm-drive wafer type butterfly valve.

Background technology

The butterfly plate of wafer type butterfly valve is installed on the diametric(al) of pipeline, in butterfly valve body cylindrical channel, disc butterfly Plate is rotated around axis, between rotation angle is 0 ° -90 °, can play the role of flow-rate adjustment, when butterfly plate rotates to 90 °, Valve reaches maximum opening, and wafer type butterfly valve structure is simple, small, light-weight, easy to operate, while having good fluid Control characteristic, is used for every field, and the patent of Publication No. CN205423862U discloses a kind of wafer type butterfly valve, valve body and butterfly It is sealed using washer and butterfly plate sealing ring between plate, sealing effect is more preferable, improves the structure of butterfly plate, resistance when butterfly plate being made to be opened and closed Smaller, it is easy to operate, but its in use only with people feel control the flow velocity adjusted every time, velocity control accuracy is too It is low, it is being frequently necessary to adjust the occasion of flow velocity, can not ensure that the flow velocity after adjusting every time is consistent, in addition its handwheel is fixed with valve body Connection, keeps butterfly valve volume larger, limits the installation space of butterfly valve, and be easy to exist by not phase in some outdoor open spaces The problem of pass personnel's maloperation.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of safe, small and are convenient for The worm-drive wafer type butterfly valve of coutroi velocity.

The utility model solves its technical problem and following technical scheme is taken to realize：

A kind of worm-drive wafer type butterfly valve, including valve body, the butterfly plate being located in the valve body, the control butterfly plate rotation Valve rod and the driving valve rod worm wheel head, the worm wheel head side is equipped with handwheel, and being equipped with cooperation in the worm wheel head makes Worm gear and worm screw, the worm gear and the worm screw are rotationally connected with respectively inside the worm wheel head, described worm screw one end by The worm wheel head is passed through and is detachably connected with the handwheel, and level-one groove body, the level-one groove body are offered at the worm screw end Both sides are connected separately with detent mechanism up and down at open at one end, and the detent mechanism includes two limits being rotationally connected on holder Position is taken turns, and inserting column is provided in the first-stage tank body, and upper and lower two middle side parts of the inserting column are connected with raised line, the upper and lower both sides of the inserting column Four corners offer first recess respectively, and the first recess is interior to be connected with support plate by spring, passes through holder on the support plate It is rotatably connected to card wheel, the card wheel is tangent with two position-limited wheels respectively, and both sides connection is limited up and down for described inserting column one end Position plate, the inserting column other end are pierced by and are connected with draw back plate by the level-one groove body, and the handwheel side is connected at center Rotating cylinder offers two level groove body in the rotating cylinder, and two middle side parts offer second recess, the handwheel to the two level groove body up and down It is realized with the cooperation of the inserting column by the rotating cylinder and is removably connect with the worm wheel head, the worm gear center is connected with set Cylinder, the sleeve both ends are rotationally connected in the worm wheel head, and the sleeve is connect with the valve rod upper end, the sleeve upper end By passing through and being connected with instruction disk at the top of the worm wheel head, it is provided with cover body outside the instruction disk, the instruction disk periphery is all provided with There are scale, the instruction disk to be equipped with indicateing arm.

In above-mentioned worm-drive wafer type butterfly valve, further, the valve rod includes upper valve rod and lower valve rod, the butterfly Plate lower end connects the lower valve rod, and the lower valve rod lower end is rotationally connected with the valve body lower end, and the valve body lower end offers Mounting hole is threaded with silk plug at the mounting hole, and the butterfly plate upper end connects the upper valve rod, and the upper valve rod upper end turns Dynamic to be connected to the valve body upper end and be pierced by by the valve body upper end, the upper valve body upper end is equipped with woodruff key, in the sleeve Woodruff key slots and keyways are offered, the upper valve rod is embedded in the connection of the Woodruff key slots and keyways realization and the sleeve by the woodruff key, The worm wheel head is connected with the valve body by hex bolts and hex nut.

In above-mentioned worm-drive wafer type butterfly valve, further, between the silk plug and the mounting hole it is equipped with O-shaped Circle, is equipped with O-ring at the upper valve rod upper end and valve body upper end rotation connection, the upper valve rod lower end and the valve body it Between be equipped with sealing rubber ring, the upper valve rod upper end is from positioning locking plate locating shaft to position, the upper valve rod upper end and the valve body It is rotatablely connected by stem bearing.

In above-mentioned worm-drive wafer type butterfly valve, further, the level-one groove body, the two level groove body and it is described insert The section of column is rectangle, and the length of the inserting column is adapted with the length of the level-one groove body and the two level groove body respectively, The width of the inserting column is adapted with the width of the level-one groove body and the two level groove body respectively.

In above-mentioned worm-drive wafer type butterfly valve, further, the height of the level-one groove body is more than the inserting column Highly, the distance of difference is the sum of two described raised line height.

In above-mentioned worm-drive wafer type butterfly valve, further, the height of the two level groove body is more than the inserting column Highly, the distance of difference is the height of a raised line.

In above-mentioned worm-drive wafer type butterfly valve, further, the depth of the first recess is more than the card wheel Diameter, length are adapted with the diameter of the card wheel, and width is adapted with the length of the card wheel, the height of the second recess For the half of the raised line height, the length and width of the second recess is adapted with the length and width of the raised line.

In above-mentioned worm-drive wafer type butterfly valve, further, the width of the length of the limiting plate and the inserting column It is consistent, it is highly consistent with the height of the raised line.

In above-mentioned worm-drive wafer type butterfly valve, further, the position of the detent mechanism and quantity and the card The position of wheel and quantity are corresponding.

In above-mentioned worm-drive wafer type butterfly valve, further, the size of the draw back plate and the two level groove body Sectional dimension is adapted.

The advantages of the utility model and good effect are：

1. dismountable handwheel of the utility model setting when not in use can be by handwheel by being unloaded on inserting column, then will insert Column is inserted into first-stage tank body, on the one hand reduces the volume of butterfly valve, is suitable for smaller space and is used, on the other hand can be effective The phenomenon that avoiding uncorrelated personnel's maloperation ensures the normal operation of butterfly valve；

2. level-one groove body and two level groove body are set as the groove body of rectangular cross-section, i.e. single-degree-of-freedom groove body by the utility model, Make inserting column that can only axially move in level-one groove body or second-level groove body, no relative rotation ensure that handwheel to worm drive Stability, so that it is guaranteed that the keying of handwheel control butterfly valve；

3. the detent mechanism and card wheel that are used cooperatively in the utility model, when inserting column being made to be inserted into first-stage tank body, before inserting column The card wheel inlay card at end is between two position-limited wheels, and when inserting column is stretched out in first-stage tank body, the card wheel inlay card of inserting column rear end is in two limits Between the wheel of position, under without outer force effect, in stable state between inserting column and level-one groove body, ensure the stability of structure；

4. the utility model is provided with limiting plate in inserting column one end, inserting column when being extracted by level-one groove body, inserting column rear end Between two position-limited wheels of the card wheel inlay card in detent mechanism, limiting plate inlay card avoids extracting inserting column in detent mechanism rear end Power is excessive, and by inserting column by being extracted in first-stage tank body, inserting column is fallen, and ensures the integrality of structure.

Description of the drawings

The technical solution of the utility model is described in further detail below with reference to drawings and examples, still It should be known that these attached drawings only design for task of explanation, therefore not as the restriction of the scope of the utility model.In addition, Unless otherwise indicated, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to carry out to scale It draws.

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

Fig. 2 is the overlooking structure diagram of worm wheel head in the utility model；

Fig. 3 is the top view cross section structural schematic diagram of worm wheel head in the utility model；

Fig. 4 is the cross-sectional view that level-one groove body is parallel to axis direction in the utility model；

Fig. 5 be in the utility model level-one groove body perpendicular to the cross-sectional view of axis direction；

Fig. 6 be in the utility model inserting column perpendicular to the cross-sectional view of axis direction；

Fig. 7 be in the utility model two level groove body perpendicular to the cross-sectional view of axis direction.

In figure：

1. valve body, 2. silk plugs, 3. lower valve rods, 4. butterfly plates, 5. upper valve rods, 6. sealing rubber rings, 7.O types circle, 8. stem bearings, 9. positioning locking plate, 10. woodruff keies, 11. hex bolts, 12. hex nuts, 13. worm wheel heads, 14. handwheels, 15. worm screws, 16. snails Wheel, 17. sleeves, 18. instruction disks, 19. cover bodies, 20. scales, 21. indicateing arms, 22. level-one groove bodies, 23. holders, 24. position-limited wheels, 25. inserting column, 26. limiting plates, 27. raised lines, 28. first recess, 29. support plates, 30. springs, 31. card wheels, 32. draw back plates, 33. turns Cylinder, 34. two level groove bodies, 35. second recess.

Specific implementation mode

Firstly, it is necessary to which explanation, illustrates the worm-drive of the utility model to folder by by way of example below Concrete structure, features and advantages of formula butterfly valve etc., however what all descriptions were intended merely to illustrate, without that should be understood To form any restrictions to the utility model.In addition, the arbitrary list for being described by or implying in each embodiment mentioned by this paper A technical characteristic, or shown or implicit arbitrary single technical characteristic in the drawings, still can be in these technical characteristics Continue arbitrary combination between (or its equivalent) or delete, to obtain this practicality that may do not referred to directly herein Novel more other embodiments.For the sake of simplifying drawing, same or like technical characteristic in the same figure may Only indicated at one.

In the description of the present invention, it should be noted that the instructions such as term "upper", "lower", " middle part ", "center" Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification Description, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and behaviour Make, therefore should not be understood as limiting the present invention, in addition, term " level-one ", " two level " are used for description purposes only, without It can be interpreted as indicating or imply relative importance or implicitly indicate the quantity of indicated technical characteristic.

The utility model is described in further detail in conjunction with attached drawing, these attached drawings are simplified schematic diagram, only Illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.

As shown in Fig. 1-Fig. 7, a kind of worm-drive wafer type butterfly valve, including valve body 1, the butterfly plate 4 being located in valve body 1, control The worm wheel head 13 of valve rod and driving stem that butterfly plate 4 processed rotates, 13 side of worm wheel head are equipped with handwheel 14, are equipped in worm wheel head 13 The worm gear 16 being used cooperatively and worm screw 15, worm gear 16 and worm screw 15 are rotationally connected with respectively inside worm wheel head 13,15 one end of worm screw It is passed through by worm wheel head 13 and is detachably connected with handwheel 14, level-one groove body 22 is offered at 15 end of worm screw, level-one groove body 22 is open At one end is connected separately with detent mechanism in both sides up and down, and detent mechanism includes two position-limited wheels being rotationally connected on holder 23 24, inserting column 25 is provided in level-one groove body 22, and about 25 two middle side part of inserting column is connected with raised line 27, about 25 both sides quadrangle of inserting column Place offers first recess 28 respectively, and first recess 28 is interior to be connected with support plate 29 by spring 30, passes through holder 23 on support plate 29 It is rotatably connected to card wheel 31, card wheel 31 is tangent with two position-limited wheels 24 respectively, and 25 one end of inserting column is connected with limiting plate in both sides up and down 26,25 other end of inserting column is pierced by by level-one groove body 22 and is connected with draw back plate 32, and handwheel is connected with rotating cylinder 33 at 14 side center, Two level groove body 34 is offered in rotating cylinder 33, about 34 two middle side part of two level groove body offers second recess 35, and handwheel 14 is by turning Cylinder 33 is removably connect with the cooperation realization of inserting column 25 with worm wheel head 13, and 16 center of worm gear is connected with sleeve 17,17 liang of sleeve End is rotationally connected in worm wheel head 13, and sleeve 17 is connect with valve rod upper end, and 17 upper end of sleeve is passed through and connected by 13 top of worm wheel head It is connected to instruction disk 18, cover body 19 is provided with outside instruction disk 18,18 periphery of instruction disk is equipped with scale 20, and instruction disk 18, which is equipped with, to be referred to Indicating 21.

Valve rod includes upper valve rod 5 and lower valve rod 3, and 4 lower end of butterfly plate connects lower valve rod 3, and 3 lower end of lower valve rod is rotationally connected with valve 1 lower end of body, 1 lower end of valve body offer mounting hole, and silk plug 2 is threaded at mounting hole, and 4 upper end of butterfly plate connects upper valve rod 5, on 5 upper end of valve rod is rotationally connected with 1 upper end of valve body and is pierced by by 1 upper end of valve body, and 5 upper end of upper valve body is equipped with woodruff key 10, sleeve 17 Inside offer Woodruff key slots and keyways, upper valve rod 5 is embedded in Woodruff key slots and keyways by woodruff key 10 and realizes connection with sleeve 17, worm wheel head 13 with Valve body 1 is connected by hex bolts 11 and hex nut 12, is equipped with O-ring 7 between silk plug 2 and mounting hole, on upper valve rod 5 It is equipped with O-ring 7 at end and 1 upper end rotation connection of valve body, sealing rubber ring 6, upper valve rod 5 are equipped between 5 lower end of upper valve rod and valve body 1 Upper end positions axial position by positioning locking plate 9, and 5 upper end of upper valve rod is rotatablely connected with valve body 1 by stem bearing 8, level-one groove body 22, the section of two level groove body 34 and inserting column 25 is rectangle, the length of inserting column 25 respectively with level-one groove body 22 and two level groove body 34 Length be adapted, i.e. inserting column 25 can be fully inserted into level-one groove body 22 and two level groove body 34, the width of inserting column 25 respectively with level-one The width of groove body 22 and two level groove body 34 is adapted, and the height of level-one groove body 22 is more than the height of inserting column 25, and the distance of difference is The sum of two 27 height of raised line, the height of two level groove body 34 are more than the height of inserting column 25, and the distance of difference is a raised line 27 Highly, the depth of first recess 28 is more than the diameter of card wheel 31, makes card wheel 31 that can be pressed in the case where being acted on by the pressure of position-limited wheel 24 Contracting spring 30 simultaneously sinks into first recess 28 completely, and length is adapted with the diameter of card wheel 31, the length phase of width and card wheel 31 Adaptation, the height of second recess 35 are the half of 27 height of raised line, the length of the length and width and raised line 27 of second recess 35 It is adapted with width, the length of limiting plate 26 is consistent with the width of inserting column 25, highly consistent with the height of raised line 27, positioning The position of mechanism and quantity are corresponding with the position of card wheel 31 and quantity, the size of draw back plate 32 and the section ruler of two level groove body 34 It is very little to be adapted.

In use, butterfly valve is installed on pipeline, draw back plate 32 is pulled out, inserting column 25 is made to be stretched out along level-one groove body 22, Since 25 front end of inserting column is limited by detent mechanism, needs to extract inserting column 25 into one larger power of the application of inserting column 25, insert In the process of moving, position-limited wheel 24 squeezes the card wheel 31 of 25 front end of inserting column, 30 forced compression of spring, 29 times shipper poles of support plate to column 25 Dynamic card wheel 31 moves down, and card wheel 31 is sunk into first recess 28, so that 25 front end of inserting column is stretched out by level-one groove body 22, is pulled on inserting column 25, when the card wheel 31 of 25 rear end of inserting column is moved to detent mechanism, the movement of inserting column 25 is hindered, pulls on inserting column 25, Position-limited wheel 24 squeezes the card wheel 31 of 25 rear end of inserting column, 30 forced compression of spring, and card wheel 31 is sunk into first recess 28, and inserting column is pulled 25, make 26 inlay card of limiting plate in detent mechanism rear end, the card wheel 31 of 25 rear end of inserting column is placed between two position-limited wheels 24, due to losing The extruding of position-limited wheel 24, spring 30 has been gone to spring back, driving card wheel 31 to move up simultaneously, inlay card is between two position-limited wheels 24, at this time no longer Any external force is applied to inserting column 25, inserting column 25 is then stable at fixed extension elongation in level-one groove body 22, and handwheel 14 is installed In on inserting column 25, inserting column 25 is inserted by two level groove body 34, and 27 inlay card of raised line in second recess 35, stretch naturally in spring by card wheel 31 It is placed under long status inside second-level groove body 34, when inserting column 25 is fully inserted into two level groove body 34, rotating cylinder 33 offsets with worm screw 15, Rotation handwheel 14 can be driven the rotation of butterfly plate 4, and detailed process is to rotate handwheel 14, and rotating cylinder 33 drives inserting column 25 to rotate, inserting column 25 drive worm screw 15 to rotate, and the rotation band moving sleeve 17 of worm gear 16 coordinated with worm screw 15 rotates, and sleeve 17 drives instruction disk respectively 18 rotate synchronously with upper valve rod 5, and the rotation of upper valve rod 5 drives butterfly plate 4 to be rotated with lower valve rod 3, i.e., the angle that butterfly plate 4 rotates can be real-time It is shown on instruction disk 18, the scale 20 being aligned according to indicateing arm 21 is the aperture that may know that butterfly plate 4, after the completion of operation, by hand Inserting column 25 is inserted into level-one groove body 22 by wheel 14 by being unloaded on inserting column 25, and during insertion, position-limited wheel 24 squeezes inserting column 25 Card wheel 31 of the rear end inlay card between two position-limited wheels 24,30 forced compression of spring, card wheel 31 sink into first recess 28, make to insert Column 25 can be smoothly inserted into, and when the card wheel 31 of 25 front end of inserting column is moved to detent mechanism, the movement of inserting column 25 is hindered, continues to push away Dynamic inserting column 25, you can make 31 inlay card of card wheel of 25 front end of inserting column between two position-limited wheels 24, at this point, no longer applying to inserting column 25 Any external force, the inlay card that inserting column 25 is then stablized is in level-one groove body 22.

It should be noted that unless otherwise clearly defined and limited, the connection type in the utility model is using existing The conventional means such as ripe bolt, rivet, welding in technology, details are not described herein, but does not interfere with ability due to the above reasons, The repetition of field technique personnel.

Dismountable handwheel of the present embodiment setting when not in use can be by handwheel by being unloaded on inserting column, then inserting column is inserted Enter in first-stage tank body, on the one hand reduce the volume of butterfly valve, be suitable for smaller space and use, on the other hand it is possible to prevente effectively from The phenomenon that uncorrelated personnel's maloperation, ensures the normal operation of butterfly valve.

The utility model is described in detail in above example, but the content is only the preferable reality of the utility model Example is applied, should not be considered as limiting the scope of the present invention.Equalization made according to the scope of application of this utility model Variation and improvement etc., should all still belong within the patent covering scope of the utility model.

Claims (10)

1. a kind of worm-drive wafer type butterfly valve, including valve body, the butterfly plate being located in the valve body, the control butterfly plate rotate The worm wheel head of valve rod and the driving valve rod, the worm wheel head side are equipped with handwheel, it is characterised in that：It is set in the worm wheel head There are the worm gear being used cooperatively and worm screw, the worm gear and the worm screw to be rotationally connected with respectively inside the worm wheel head, the snail Bar one end is passed through by the worm wheel head and is detachably connected with the handwheel, and level-one groove body is offered at the worm screw end, described Both sides are connected separately with detent mechanism up and down at level-one groove body open at one end, and the detent mechanism is rotationally connected with branch including two Position-limited wheel on frame is provided with inserting column in the first-stage tank body, and two middle side parts are connected with raised line, the inserting column to the inserting column up and down Upper and lower both sides four corners offer first recess respectively, and support plate is connected with by spring in the first recess, on the support plate It is connected with card wheel by holder pivots, the card wheel is tangent with two position-limited wheels respectively, both sides above and below described inserting column one end It is connected with limiting plate, the inserting column other end is pierced by and is connected with draw back plate, handwheel side center by the level-one groove body Place is connected with rotating cylinder, and two level groove body is offered in the rotating cylinder, and two middle side parts offer second recess to the two level groove body up and down, The handwheel is removably connect by the rotating cylinder with the cooperation of inserting column realization with the worm wheel head, the worm gear center It is connected with sleeve, the sleeve both ends are rotationally connected in the worm wheel head, and the sleeve is connect with the valve rod upper end, described Sleeve upper end is provided with cover body, the instruction disk by passing through and being connected with instruction disk at the top of the worm wheel head outside the instruction disk Periphery is equipped with scale, and the instruction disk is equipped with indicateing arm.

2. a kind of worm-drive wafer type butterfly valve according to claim 1, it is characterised in that：The valve rod includes upper valve rod And lower valve rod, the butterfly plate lower end connect the lower valve rod, the lower valve rod lower end is rotationally connected with the valve body lower end, described Valve body lower end offers mounting hole, and silk plug is threaded at the mounting hole, and the butterfly plate upper end connects the upper valve rod, institute It states upper valve rod upper end to be rotationally connected with the valve body upper end and be pierced by by the valve body upper end, the upper valve body upper end is equipped with semicircle Key, offers Woodruff key slots and keyways in the sleeve, and the upper valve rod, which passes through the woodruff key and is embedded in the Woodruff key slots and keyways, to be realized and institute The connection of sleeve is stated, the worm wheel head is connected with the valve body by hex bolts and hex nut.

3. a kind of worm-drive wafer type butterfly valve according to claim 2, it is characterised in that：The silk plug and the installation It is equipped with O-ring between hole, is equipped with O-ring at the upper valve rod upper end and valve body upper end rotation connection, under the upper valve rod Sealing rubber ring is equipped between end and the valve body, the upper valve rod upper end is from positioning locking plate locating shaft to position, the upper valve rod Upper end is rotatablely connected with the valve body by stem bearing.

4. a kind of worm-drive wafer type butterfly valve according to claim 1, it is characterised in that：It is the level-one groove body, described The section of two level groove body and the inserting column is rectangle, the length of the inserting column respectively with the level-one groove body and the second-level groove The length of body is adapted, and the width of the inserting column is adapted with the width of the level-one groove body and the two level groove body respectively.

5. a kind of worm-drive wafer type butterfly valve according to claim 1, it is characterised in that：The height of the level-one groove body More than the height of the inserting column, the distance of difference is the sum of two described raised line height.

6. a kind of worm-drive wafer type butterfly valve according to claim 1, it is characterised in that：The height of the two level groove body More than the height of the inserting column, the distance of difference is the height of a raised line.

7. a kind of worm-drive wafer type butterfly valve according to claim 1, it is characterised in that：The depth of the first recess More than the diameter of the card wheel, length is adapted with the diameter of the card wheel, and width is adapted with the length of the card wheel, described The height of second recess is the half of the raised line height, the length of the length and width of the second recess and the raised line and Width is adapted.

8. a kind of worm-drive wafer type butterfly valve according to claim 1, it is characterised in that：The length of the limiting plate with The width of the inserting column is consistent, highly consistent with the height of the raised line.

9. a kind of worm-drive wafer type butterfly valve according to claim 1, it is characterised in that：The position of the detent mechanism It is corresponding with the position of the card wheel and quantity with quantity.

10. a kind of worm-drive wafer type butterfly valve according to claim 1, it is characterised in that：The size of the draw back plate It is adapted with the sectional dimension of the two level groove body.