CN203223571U - Threaded butterfly valve - Google Patents
Threaded butterfly valve Download PDFInfo
- Publication number
- CN203223571U CN203223571U CN 201320190284 CN201320190284U CN203223571U CN 203223571 U CN203223571 U CN 203223571U CN 201320190284 CN201320190284 CN 201320190284 CN 201320190284 U CN201320190284 U CN 201320190284U CN 203223571 U CN203223571 U CN 203223571U
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- valve
- rod
- valve body
- positioning
- sleeve
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Abstract
The utility model discloses a threaded butterfly valve which is installed in a water supply and drainage pipeline system and used for cutting off and throttling fluid in the pipeline system. The threaded butterfly valve is structurally and mainly composed of a valve body 1, a valve cover 2, a butterfly plate 7, an upper valve rod 8, a handle 11, a positioning device 3 and the like. The threaded butterfly valve is of a threaded butterfly valve structure of the small aperture and suitable for pipeline systems of small apertures, for example central heating pipeline systems, meanwhile, the positioning device on the handle is improved and designed according to the principle of a three-dimension cam, and a positioning rod can be driven to stretch into and out of a positioning hole by pressing a press cover to push a push rod sleeve and a push rod at intervals. Due to the fact that a positioning rib and a spiral groove structure are installed among the push rod sleeve, the push rod and a shaft sleeve, the position of the positioning rod can be locked effectively. The improved threaded butterfly valve further has the advantages of being simple in structure, low in manufacturing cost, good in sealing effect and the like.
Description
Technical field
The utility model relates to a kind of butterfly valve technical field, particularly a kind of small-bore silk mouthful butterfly valve.
Background technique
Butterfly valve generally is installed in the water supply and sewerage pipeline system, is mainly used in the fluid in the pipe-line system is cut off and throttling action, so can be widely used in departments such as metallurgy, oil, chemical industry.During butterfly valve product in the market is categorized as by inside nominal diameter, the valve of big and super-large diameter, its Placement is wafer type and flange-type dual mode, because inside nominal diameter and the Placement of butterfly valve have determined valve can only be applicable in the pipe-line systems such as the bigger water supply of inside nominal diameter, fuel feeding, can't be applicable in the more small-bore pipe-line system, as caliduct system etc.Therefore, in order to expand the application of butterfly valve, design that a kind of sealability is reliable, long service life, a small-bore silk mouthful butterfly valve rational in infrastructure be very to be necessary.Simultaneously, the handle rotating operation of small-bore silk mouthful butterfly valve often needs to carry out the location, position, and the most troublesome poeration of positioning device that is suitable on the present butterfly valve, and the location is also accurately little.
Summary of the invention
Technical problem to be solved in the utility model be to overcome the defective of prior art and provide a kind of simple in structure, fabricating cost is low, the accurate silk mouthful butterfly valve in good sealing effect, operation location.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of mouth butterfly valve comprises valve body and the valve gap that is connected on the valve body; Be provided with valve seat and the butterfly plate that is movably arranged on the valve seat in the described valve body, described valve body top is provided with the upper valve rod that sealed rotational is installed, and this upper valve rod lower end and butterfly plate are in transmission connection, and the upper valve rod upper end is passed valve body and is fixed with handle; Be provided with mounting hole in the described handle, in this mounting hole positioning device is installed, corresponding being provided with described positioning device at the valve body end face constitutes the equipped positioning hole in location, described positioning device comprises the axle sleeve that is connected in the mounting hole, this axle sleeve middle part is provided with spacing interior shoulder, and the axle sleeve lower inner surface is provided with spiral chute; Be provided with movable pushing rod sleeve and the push rod of installing in the described axle sleeve; Described pushing rod sleeve top is passed bellows and is fixed with gland, the pushing rod sleeve middle part is provided with the spacing outer shoulder that constitutes stroke limit with the spacing interior shoulder at described axle sleeve middle part, the pushing rod sleeve bottom outer surface is provided with guiding rib, and this guiding rib is equipped mutually with the spiral chute of described axle sleeve internal surface; Described push rod top movable is installed in the pushing rod sleeve, and the push rod bottom outer surface also is provided with guiding rib, and this guiding rib is equipped mutually with the spiral chute of described axle sleeve internal surface; Described push rod bottom is connected with positioning rod, the positioning hole formation location that this positioning rod bottom is passed on handle and the described valve seat is equipped, outside positioning rod, also be provided with the elastic element of suit, the two ends of this elastic element respectively pushing tow in mounting hole, take on positioning rod outside take on.
Be provided with the valve pocket that level connects in the described valve body, these valve pocket two ends are respectively equipped with the valve gap that is threaded.
Described butterfly plate bottom is provided with the movable lower valve rod of installing, and this lower valve rod passes in the central axis hole that valve seat is installed in valve body.
Be provided with the valve seat backrest between described valve seat and the valve body.
The sealed rotational mounting structure of described upper valve rod at the valve body top is to be provided with stuffing box between upper valve rod and valve body, and the connecting cover of filler and sealing filler is installed in this stuffing box.
Described valve body end face is provided with middle flange, and described positioning hole is arranged in this on flange.
Described valve body end face is provided with blocked ear, the corresponding restraining groove that constitutes the handle rotary spacing with described blocked ear that is provided with in the handle bottom surface.
Compared with prior art, the utility model is a kind of small-bore silk mouthful butterfly valve structure, it can be applicable in the more small-bore pipe-line system such as caliduct system, also improve at the positioning device on the handle, this positioning device has utilized the threedimensional cam principle to design, by intermittently pressing gland through pushing rod sleeve, push rod can drive the flexible turnover of positioning rod in positioning hole, and at pushing rod sleeve, be respectively equipped with the locking position that equipped mutually positioning bar and helical groove structure can effectively guarantee positioning rod again between push rod and the axle sleeve, the silk mouthful butterfly valve after the improvement also has simple in structure, fabricating cost is low, advantages such as good sealing effect.
Description of drawings
Fig. 1 is sectional structure schematic representation of the present utility model.
Fig. 2 is the sectional structure schematic representation of positioning device.
Embodiment
To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.
As shown in Figure 1 and Figure 2,1. valve body, 2. valve gap, 3. positioning device, 31. glands, 32. bellowss, 33. pushing rod sleeves, 331. spacing outer shoulders, 34. axle sleeves, 341. spacing in shoulders, 35. push rods, 36. elastic elements, 37. positioning rods, 371. shoulders, 38. guiding ribs, 4. valve seat backrest, 5. valve seat, 6. lower valve rod, 7. butterfly plate, 8. upper valve rod, 9. blocked ear, 10. flange, 15. connecting covers, 16. fillers in restraining groove, 11. handles, 12. screws, 13. vinyl covers, 14. outward.
Silk mouthful butterfly valve, as shown in Figure 1, it mainly is installed in the water supply and sewerage pipeline system, and the fluid in the pipe-line system is cut off and throttling.Its structure is to be made of valve body 1, valve gap 2, butterfly plate 7, upper valve rod 8, handle 11 and positioning device 3 etc.
Described valve body 1 is the brass body of forging molding, is provided with the valve pocket that level connects in this valve body, is respectively equipped with the valve gap 2 that is threaded at the valve pocket two ends, so the structure of valve body 1 and two valve gap 2 formation trisome formulas.Valve gap 2 is Hexagon, and the set pipe thread of its internal surface can be used for connecting tube; Valve body 1 end face is made as middle flange 14, Design Orientation hole on the flange in this, and middle flange 14 1 sides are provided with blocked ear 9.
In the described valve body 1 valve seat 5 is installed, this valve seat is done the location, position and is formed sealing by the valve gap 2 at two ends, between valve seat 5 and the valve body 1 valve seat backrest 4 is set, and the inner chamber of the external diameter of this valve seat backrest and valve body 1 is integral with interference fit, and forms sealing effect; Valve seat 5 is provided with the movable butterfly plate of installing 7, the external diameter of this butterfly plate also is sealed and matched together mutually with the inner chamber of valve seat 5, can form the keying of valve body 1 internal valve cavity by the rotation of butterfly plate 7 in valve seat 5, also be provided with the endoporus of upper and lower perforation at butterfly plate 7 middle parts, the endoporus top is made as cubic hole structure.
Described upper valve rod 8 sealed rotational are installed in valve body 1 top, it is to be provided with stuffing box between upper valve rod 8 and valve body 1 that sealing is rotated mounting structure, the opening of this stuffing box is positioned at valve body 1 end face, plug is equipped with filler 16 in stuffing box, sealed by the connecting cover 15 that is threaded then, at this moment, can form movable sealing structure between upper valve rod 8 and the valve body 1; Described upper valve rod 8 lower ends are in transmission connection by the cubic hole of square axis and butterfly plate 7 upper ends, valve body 1 back is passed with the structure in flat axle, the flat hole jug 11 that is in transmission connection in upper valve rod 8 upper ends, be connected and fixed with screw 12 then, also be provided with vinyl cover 13 on the handle 11 and carry out covering of screw and cover, with aesthetic appearance.
Be provided with the movable lower valve rod of installing 6 in the endoporus of described butterfly plate 7 bottoms, this lower valve rod passes in the central axis hole that valve seat 5 is installed in valve body 1, and this lower valve rod 6 can play the effect that butterfly plate 7 smooth rotation open and close.
Described handle 11 bottom surfaces are provided with restraining groove 10, and the blocked ear 9 on this restraining groove and the described valve body 1 has constituted the limit structure that handle 11 rotates jointly.
Be provided with the mounting hole of upper and lower perforation in the described handle 11, positioning device 3 as shown in Figure 2 is installed in this mounting hole, this is a kind of position structure that has utilized the threedimensional cam principle to design, by positioning device 3 structure equipped with the positioning hole formation location of described valve body 1 end face; Described positioning device 3 comprises the axle sleeve 34 that is threaded in the mounting hole, and this axle sleeve top is equipped with plastic film capicitor 32, and the axle sleeve middle part is provided with spacing interior shoulder 341, and axle sleeve 34 lower inner surface are provided with depth spiral chute.
Pushing rod sleeve 33 and the push rod 35 of movable structure are installed in the described axle sleeve 34; Described pushing rod sleeve 33 tops are passed bellows 32 and are formed a fixed connection with gland 31, and pushing rod sleeve 33 and gland 31 can form in axle sleeve 34 and move up and down and rotate; Pushing rod sleeve 33 middle parts are provided with the spacing outer shoulder 331 that constitutes stroke limits with the spacing interior shoulder 341 at described axle sleeve 34 middle parts, are mainly used in limiting the stroke that moves upward of pushing rod sleeve 33; Pushing rod sleeve 33 bottom outer surfaces are provided with guiding rib 38, and the spiral chute of this guiding rib and described axle sleeve 34 internal surfaces is equipped mutually, and when pressing down pushing rod sleeve 33, this pushing rod sleeve cooperates with spiral fluted can form to rotate by guiding rib 38 and moves downward.
Described push rod 35 top movable are installed in the pushing rod sleeve 33, so can constitute motion mutually between pushing rod sleeve and the push rod; Push rod 35 bottom outer surfaces also are provided with guiding rib, and this guiding rib is equipped mutually with the spiral chute of described axle sleeve 34 internal surfaces, so pushing rod sleeve 33 promotion push rods 35 are downward, this push rod also can cooperate the formation rotation to move downward by guiding rib with spiral fluted.
Described push rod 35 bottoms are connected with positioning rod 37, mounting hole and the formation of the positioning hole on the valve seat 1 location that this positioning rod bottom is passed on the handle 11 are equipped, outside positioning rod 37, also be provided with the elastic element 36 of suit, the two ends of this elastic element respectively pushing tow in mounting hole, take on positioning rod outside take on 371, and give the pre-thrust that 37 1 of positioning rods move upward.
Working method of the present utility model is: it is spacing that the cooperation by restraining groove 10 and blocked ear 9 has constituted the rotational travel of handle 11 jointly, and the rotation of handle can drive the rotation of butterfly plate 7 in valve seat 5 through upper valve rod 8, and then has realized the keying of valve pocket; After handle 11 rotate in place, pressing gland 31 promotion pushing rod sleeves 33, push rod 35 and positioning rod 37 mutually down enters in the positioning hole, can realize the locking that handle 11 rotates, press gland 31 again, pushing rod sleeve 33, push rod 35 are resetted by the pushing tow of elastic element 36 with positioning rod 37, positioning rod 37 breaks away from positioning hole, and handle 11 can be operated rotation again.
The above only is preferred embodiments of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (7)
1. silk mouth butterfly valve comprises valve body (1) and is connected valve gap (2) on the valve body; Be provided with valve seat (5) in the described valve body (1) and be movably arranged on butterfly plate (7) on the valve seat, described valve body (1) top is provided with the upper valve rod (8) that sealed rotational is installed, this upper valve rod lower end and butterfly plate (7) are in transmission connection, and upper valve rod (8) upper end is passed valve body (1) and is fixed with handle (11); Be provided with mounting hole in the described handle, positioning device (3) is installed in this mounting hole, corresponding being provided with described positioning device (3) at valve body (1) end face constitutes the equipped positioning hole in location, it is characterized in that described positioning device (3) comprises the axle sleeve (34) that is connected in the mounting hole, this axle sleeve middle part is provided with spacing interior shoulder (341), and axle sleeve (34) lower inner surface is provided with spiral chute; Be provided with movable pushing rod sleeve (33) and the push rod of installing (35) in the described axle sleeve (34); Described pushing rod sleeve (33) top is passed bellows (32) and is fixed with gland (31), pushing rod sleeve (33) middle part is provided with the spacing outer shoulder (331) that constitutes stroke limit with the spacing interior shoulder (341) at described axle sleeve (34) middle part, pushing rod sleeve (33) bottom outer surface is provided with guiding rib (38), and this guiding rib is equipped mutually with the spiral chute of described axle sleeve (34) internal surface; Described push rod (35) top movable is installed in the pushing rod sleeve (33), and push rod (35) bottom outer surface also is provided with guiding rib (38), and this guiding rib is equipped mutually with the spiral chute of described axle sleeve (34) internal surface; Described push rod (35) bottom is connected with positioning rod (37), it is equipped with the positioning hole formation location on the described valve seat (1) that handle (11) is passed in this positioning rod bottom, outside positioning rod (37), also be provided with the elastic element (36) of suit, the two ends of this elastic element respectively pushing tow in mounting hole, take on positioning rod (37) outside take on (371).
2. silk mouthful butterfly valve according to claim 1 is characterized in that the valve pocket that the level that is provided with in the described valve body (1) connects, and these valve pocket two ends are respectively equipped with the valve gap (2) that is threaded.
3. silk mouthful butterfly valve according to claim 1 is characterized in that described butterfly plate (7) bottom is provided with the movable lower valve rod of installing (6), and this lower valve rod passes valve seat (5) and is installed in the central axis hole of valve body (1).
4. silk mouthful butterfly valve according to claim 1 is characterized in that being provided with valve seat backrest (4) between described valve seat (5) and the valve body (1).
5. silk according to claim 1 mouthful butterfly valve, it is characterized in that the sealed rotational mounting structure of described upper valve rod (8) at valve body (1) top is to be provided with stuffing box between upper valve rod (8) and valve body (1), the connecting cover (15) of filler (16) and sealing filler is installed in this stuffing box.
6. silk mouthful butterfly valve according to claim 1 is characterized in that described valve body (1) end face is provided with middle flange (14), and described positioning hole is arranged on the flange in this (14).
7. silk mouthful butterfly valve according to claim 1 is characterized in that described valve body (1) end face is provided with blocked ear (9), the corresponding restraining groove (10) that constitutes the handle rotary spacing with described blocked ear (9) that is provided with in handle (11) bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320190284 CN203223571U (en) | 2013-04-16 | 2013-04-16 | Threaded butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320190284 CN203223571U (en) | 2013-04-16 | 2013-04-16 | Threaded butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223571U true CN203223571U (en) | 2013-10-02 |
Family
ID=49250575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320190284 Expired - Lifetime CN203223571U (en) | 2013-04-16 | 2013-04-16 | Threaded butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179993A (en) * | 2014-09-10 | 2014-12-03 | 宁波华成阀门有限公司 | Threaded connection soft seal butterfly valve |
| CN106224565A (en) * | 2016-08-29 | 2016-12-14 | 约翰斯顿流体科技（无锡）有限公司 | A kind of butterfly valve of energy-efficient water pump |
-
2013
- 2013-04-16 CN CN 201320190284 patent/CN203223571U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179993A (en) * | 2014-09-10 | 2014-12-03 | 宁波华成阀门有限公司 | Threaded connection soft seal butterfly valve |
| CN106224565A (en) * | 2016-08-29 | 2016-12-14 | 约翰斯顿流体科技（无锡）有限公司 | A kind of butterfly valve of energy-efficient water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |
|
| CX01 | Expiry of patent term |