CN213236097U - Long service life's butterfly valve - Google Patents
Long service life's butterfly valve Download PDFInfo
- Publication number
- CN213236097U CN213236097U CN202021466498.8U CN202021466498U CN213236097U CN 213236097 U CN213236097 U CN 213236097U CN 202021466498 U CN202021466498 U CN 202021466498U CN 213236097 U CN213236097 U CN 213236097U
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly
- valve shaft
- valve body
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000004907 gland Anatomy 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a long service life's butterfly valve, including the valve body, be provided with the butterfly plate in the valve body, be provided with the valve shaft on the butterfly plate, the valve shaft stretches out to link to each other in valve body and actuating mechanism, actuating mechanism includes the casing, the casing with the valve body passes through bolted connection, the valve shaft rotates with the casing to be connected, the fixed gear that is provided with on the valve shaft, gear both sides phase center symmetry is provided with two racks with gear engaged with, rack connection is in the executor, and the valve shaft still passes the casing and connects in the hand wheel, the hand wheel outside is provided with the second casing, and the executor is the cylinder. The utility model adopts the cylinder to cooperate with the gear rack transmission to realize the mechanical valve opening and closing, and then cooperates with the hand wheel connected with the upper valve shaft to realize the manual and mechanical integration, when the cylinder fails and the mechanical operation can not be realized, the valve can be manually opened and closed, thereby reducing the loss; meanwhile, the air cylinder is adopted to replace a motor, so that the cost of the motor is reduced, and the butterfly plate is simpler to open and close.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to butterfly valve.
Background
The butterfly valve is a valve in which an opening and closing member is a disk and rotates around a valve shaft to open and close. The existing butterfly valve is generally connected with a driving motor through a valve shaft to realize rotation so as to control the cut-off of a medium, the existing butterfly valve depends on the opening and closing of the motor, once the motor fails, the opening and closing of the butterfly valve cannot be controlled, and the use is further influenced. The current chinese utility model patent of patent number 201920592978.X discloses an eccentric soft seal butterfly valve, and this butterfly valve passes through bevel gear and connects hand wheel, motor respectively, realizes manual electronic integration. However, the actuating mechanism is a motor, so that the problems that the rotating frequency of the motor is difficult to control and the cost is high exist, and meanwhile, the problem that the bevel gear is blocked during transmission also exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure to the not enough of existence among the above-mentioned background art, can realize manual, flexible integrated control, long butterfly valve when having longer use.
In order to achieve the above object, the utility model relates to a long service life's butterfly valve has adopted following technical scheme:
the utility model provides a long service life's butterfly valve, includes the valve body, is provided with the butterfly plate in the valve body, be provided with the valve shaft on the butterfly plate, the valve shaft stretches out to link to each other in valve body and actuating mechanism, actuating mechanism includes the casing, the casing with the valve body passes through bolted connection, the valve shaft rotates with the casing to be connected, the fixed gear that is provided with on the valve shaft, gear both sides phase centrosymmetry is provided with two racks with gear engaged with, rack connection is in the executor, the valve shaft still passes the casing and connects in the hand wheel, the hand wheel outside is provided with the second casing, the executor is the cylinder. Realize mobile through the gas pole, realize manually through the hand wheel, realize mobile, manual integration through the valve shaft, simple structure uses manually under the condition that mobile can not be realized, avoids the unnecessary loss.
The utility model relates to a long service life's butterfly valve door's further improvement part lies in, be provided with the dead lever on the rack, the dead lever end is provided with the spacing arch that is T shape, set up on the casing and supply the gliding spout of spacing arch. The arrangement of the fixed rod ensures the relative stability of the rack, and the transmission problem can not occur.
The utility model relates to a long service life's butterfly valve door's further improvement part lies in, it is provided with two sets of baffles to be central symmetry on the valve body, and two sets of baffles surround and offset with the butterfly plate, the baffle cross-section is L shape, be fixed with the elastic sealing pad on one side of baffle, this side is not inconsistent with the butterfly plate. The sealing effect is enhanced to prolong the service life of the valve.
The utility model relates to a long service life's butterfly valve's further improvement part lies in, the executor stretches out and links to each other with the external air pump station with the casing outside.
The utility model relates to a long service life's butterfly valve's further improvement part lies in, the door plant that can open and shut has been seted up on the second casing.
The utility model relates to a long service life's butterfly valve's further improvement part lies in, the valve shaft with be provided with the gland between the valve body, be provided with the gland on the gland, the gland cross-section is L shape, the gland passes through bolted connection in the casing, still be provided with the limiting plate on the gland, be equipped with on the casing in limiting plate matched with spacing groove, the spacing inslot is provided with the sealing washer, the limiting plate is on a parallel with the valve shaft.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model adopts the cylinder to cooperate with the gear rack transmission to realize the mechanical valve opening and closing, and then cooperates with the hand wheel connected with the upper valve shaft to realize the manual and mechanical integration, when the cylinder fails and the mechanical operation can not be realized, the valve can be manually opened and closed, thereby reducing the loss; meanwhile, the air cylinder is adopted to replace a motor, so that the cost of the motor is reduced, and the butterfly plate is simpler to open and close.
2. The utility model discloses a set up the elastic sealing pad on baffle and the baffle, set up gland packing and gland simultaneously, realize multiple sealed through multiple mode, guaranteed sealed effect, and then prolonged the life of valve.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top sectional view of the valve body;
in the figure: 10 valve body, 20 butterfly plate, 30 valve shaft, 40 shell, 41 gear, 42 rack, 43 actuator, 50 hand wheel, 51 second shell, 60 baffle, 61 elastic sealing gasket, 70 sealing packing, 71 gland and 72 limit plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, a butterfly valve with a long service life includes a valve body 10, a butterfly plate 20 is disposed in the valve body, a valve shaft 30 is disposed on the butterfly plate, the valve shaft extends out of the valve body and is connected to an actuator, the actuator includes a housing 40, the housing 40 is connected to the valve body 10 through a bolt, the valve shaft 30 is rotatably connected to the housing 40, a gear 41 is fixedly disposed on the valve shaft 30, two racks 42 engaged with the gear are disposed at two side phases of the gear 41, the racks 42 are connected to an actuator, the valve shaft 30 further passes through the housing 40 and is connected to a handwheel 50, a second housing 40 is disposed outside the handwheel 50, a door plate capable of opening and closing is disposed on the second housing 40, and the handwheel is convenient for manual operation when the door plate is opened. The actuator can be an air cylinder, and the air cylinder can extend out to be connected with an air pump station outside the shell and can also be arranged inside the shell.
In order to ensure the smooth transmission of the rack and the gear, the rack can be relatively limited. Specifically, a fixing rod (not shown in the figure) may be disposed on the rack, a T-shaped limiting protrusion is disposed at the end of the fixing rod, and a sliding groove for the limiting protrusion to slide is disposed on the housing.
In order to ensure that the butterfly plate has better sealing performance, two groups of baffle plates 60 can be arranged on the valve body in a centrosymmetric manner, the two groups of baffle plates 60 surround and are abutted to the butterfly plate 20, the cross section of each baffle plate is L-shaped, an elastic sealing gasket 61 is fixed on one side edge of each baffle plate, and the side edge is not abutted to the butterfly plate.
Furthermore, a sealing filler 70 is arranged between the valve shaft 30 and the valve body 10, a gland 71 is arranged on the sealing filler, the cross section of the gland is in an L shape, the gland is connected to the shell through a bolt, a limiting plate 72 is further arranged on the gland, a limiting groove matched with the limiting plate is arranged on the shell, a sealing ring is arranged in the limiting groove, and the limiting plate 72 is parallel to the valve shaft 30. Further ensuring the whole sealing performance of the valve.
The utility model discloses a theory of operation does: the actuator controls the rack to move, so that the gear is driven to rotate, the valve shaft rotates, and the opening and closing of the motor-driven control valve are realized. When the actuator fails, the door plate is opened, the hand wheel is manually controlled to rotate, the valve shaft is rotated, and the valve is manually controlled to be opened and closed. When the valve is closed, the butterfly plate is pressed and abutted against the elastic sealing gasket, so that the sealing property is further enhanced.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a long service life's butterfly valve, includes the valve body, is provided with the butterfly plate in the valve body, be provided with the valve shaft on the butterfly plate, the valve shaft stretches out in the valve body and links to each other its characterized in that with actuating mechanism: the actuating mechanism comprises a shell, the shell is connected with the valve body through a bolt, the valve shaft is rotationally connected with the shell, a gear is fixedly arranged on the valve shaft, two racks meshed with the gear are symmetrically arranged at the centers of two side phases of the gear, the racks are connected to an actuator, the valve shaft further penetrates through the shell to be connected to a hand wheel, a second shell is arranged on the outer side of the hand wheel, and the actuator is an air cylinder.
2. A long-life butterfly valve according to claim 1, characterized in that: the rack is provided with a fixed rod, the tail end of the fixed rod is provided with a T-shaped limiting bulge, and the shell is provided with a sliding groove for the limiting bulge to slide.
3. A long-life butterfly valve according to claim 1, characterized in that: the butterfly valve is characterized in that two groups of baffles are arranged on the valve body in a centrosymmetric manner, the two groups of baffles surround and are abutted to the butterfly plate, the cross section of each baffle is L-shaped, an elastic sealing gasket is fixed on one side edge of each baffle, and the side edge is not abutted to the butterfly plate.
4. A long-life butterfly valve according to claim 1, characterized in that: the actuator extends out of the outer side of the shell and is connected with an external air pump station.
5. A long-life butterfly valve according to claim 1, characterized in that: the second shell is provided with a door panel which can be opened and closed.
6. A long-life butterfly valve according to claim 1, characterized in that: the valve shaft with be provided with the gland between the valve body, be provided with the gland on the gland, the gland cross-section is L shape, the gland passes through bolted connection in casing, still be provided with the limiting plate on the gland, be equipped with on the casing in limiting plate matched with spacing groove, the spacing inslot is provided with the sealing washer, the limiting plate is on a parallel with the valve shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021466498.8U CN213236097U (en) | 2020-07-23 | 2020-07-23 | Long service life's butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021466498.8U CN213236097U (en) | 2020-07-23 | 2020-07-23 | Long service life's butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213236097U true CN213236097U (en) | 2021-05-18 |
Family
ID=75890319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021466498.8U Expired - Fee Related CN213236097U (en) | 2020-07-23 | 2020-07-23 | Long service life's butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213236097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060540A (en) * | 2021-11-30 | 2022-02-18 | 闫皓男 | Bidirectional-pressure high-temperature butterfly valve |
-
2020
- 2020-07-23 CN CN202021466498.8U patent/CN213236097U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060540A (en) * | 2021-11-30 | 2022-02-18 | 闫皓男 | Bidirectional-pressure high-temperature butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 |