CN211010092U - Low-temperature pneumatic stop valve actuator and valve connecting structure - Google Patents
Low-temperature pneumatic stop valve actuator and valve connecting structure Download PDFInfo
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- CN211010092U CN211010092U CN201922157186.2U CN201922157186U CN211010092U CN 211010092 U CN211010092 U CN 211010092U CN 201922157186 U CN201922157186 U CN 201922157186U CN 211010092 U CN211010092 U CN 211010092U
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Abstract
The utility model provides a low temperature pneumatic stop valve executor and valve connection structure, including the valve body, valve body central authorities are provided with the valve gap assembly, and valve gap assembly central authorities are connected with the valve rod, have cup jointed down the connector on the valve rod, and lower connector top is provided with the calibrated scale, and lower connector and last connector are about calibrated scale longitudinal symmetry, and it passes through lock nut to be connected and is connected with last valve rod to go up the connector, goes up the valve rod and is located pneumatic executor central position, and pneumatic executor passes through bolted connection with the connector, and the other end of connector passes through connecting bolt and is connected with the end cover of valve body. The utility model discloses utilize the connector to help the self weight of balanced executor, reduce the crooked meeting an emergency that executor self weight and external force formed the valve gap, be favorable to protecting valve gap and valve rod, prolong pneumatic stop valve's life has reduced the processing degree of difficulty simultaneously, easily assembles, and overall structure rigidity is good.
Description
Technical Field
The utility model relates to a mechanical valve technical field especially relates to a low temperature pneumatic stop valve executor and valve connection structure.
Background
In the existing pneumatic stop valve, the actuator is generally fixed outside the stuffing box of the valve cover through a connecting body. The pneumatic stop valve with the structure is reasonable in structure and good in connection reliability for the pneumatic stop valve with the valve cover structure being relatively short and used in the normal-temperature environment. However, in the low-temperature valve with high cold insulation requirement, a long-neck valve cover structure is generally adopted in order to keep the temperature at the bottom of the stuffing box above 0 ℃. If the connector of the actuator is fixed outside the stuffing box, the weight of the actuator and external force can generate large bending stress on the bottom of the valve cover and the supporting pipe, the opening and closing action of the valve can be influenced after long-term use, and the service life of the valve can be influenced after further use, so that a new structural form needs to be developed.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a low temperature pneumatic stop valve executor and valve connection structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a low temperature pneumatic stop valve executor and valve connection structure, includes the valve body, valve body central authorities are provided with the valve gap assembly, valve gap assembly central authorities are connected with the valve rod, the lower link that has cup jointed on the valve rod, lower link top is provided with the calibrated scale, lower link and last link are about calibrated scale longitudinal symmetry, it passes through lock nut to be connected and is connected with last valve rod to go up the link, it is located pneumatic executor central point and puts to go up the valve rod, pneumatic executor passes through bolted connection with the connector, the other end of connector passes through connecting bolt and is connected with the end cover of valve body.
Further, the connector includes a connecting rod and a connecting ring.
Furthermore, one end of the connecting rod and the connecting ring form an integral structure, and the top of the other end of the connecting rod is provided with threads and is connected with a connecting bolt.
Furthermore, four through holes are uniformly distributed on the connecting ring and are connected with the pneumatic actuator through bolts.
Further, the valve rod, the lower linkage and the valve cover assembly are coaxially connected.
Further, the upper linkage, the lock nut and the upper valve stem are coaxially connected
Compared with the prior art, the utility model discloses following beneficial effect has: (1) the utility model discloses utilize the connector to help the self weight of balanced executor, reduce the crooked meeting an emergency that executor self weight and external force formed the valve gap, be favorable to protecting valve gap and valve rod, prolong pneumatic stop valve's life. (2) The utility model discloses reduce the processing degree of difficulty, overall structure rigidity is good. (3) The utility model discloses simple structure easily installs and dismantles. (4) The utility model is suitable for a cold insulation requires higher low temperature environment, can keep valve bonnet bottom and stay tubular member indeformable for a long time, guarantees that pneumatic stop valve moves well.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a connecting structure of a low-temperature pneumatic stop valve actuator and a valve according to the present invention;
fig. 2 is a schematic structural diagram of a connector of a low-temperature pneumatic stop valve actuator and valve connection structure according to the present invention.
Reference numerals:
1. a valve body; 2. a connecting bolt; 3. a valve cover assembly; 4. a linker; 5. a pneumatic actuator; 6. the locking device comprises a locking nut 7, a dial disc 8, a linkage device 9, a valve rod 10, a connecting rod 11 and a connecting ring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following, with reference to the drawings and the detailed description, further description of the present invention is made:
referring to fig. 1 to 2, a low temperature pneumatic stop valve executor and valve connection structure, including valve body 1, valve body 1 central authorities are provided with valve gap assembly 3, valve gap assembly 3 central authorities are connected with valve rod 9, lower link 8 has been cup jointed on the valve rod 9, lower link 8 top is provided with calibrated scale 7, lower link 8 and last link are about calibrated scale 7 longitudinal symmetry, it is connected with last valve rod through lock nut 6 to go up the link, it is located pneumatic executor 5 central point position to go up the valve rod, pneumatic executor 5 passes through bolted connection with connector 4, the other end of connector 4 passes through connecting bolt 2 and is connected with the end cover of valve body 1.
The connecting body 4 helps to balance the self weight of the pneumatic actuator 5, reduces the bending strain of the self weight of the pneumatic actuator 5 and the external force on the valve cover, is favorable for protecting the valve cover and the valve rod 9, prolongs the service life of the pneumatic stop valve, and can ensure that the stop valve is suitable for the low-temperature environment with high cold insulation requirement, so that the bottom of the valve cover and the support pipe piece can be kept from deforming for a long time, and the pneumatic stop valve is ensured to operate well.
According to the above, the connecting body 4 comprises a connecting rod 10 and a connecting ring 11.
According to the above, one end of the connecting rod 10 is integrated with the connecting ring 11, and the top of the other end is provided with a thread and connected with the connecting bolt 2.
According to the above, four through holes are uniformly distributed on the connecting ring 11, and the four through holes are connected with the pneumatic actuator 5 through bolts.
The connector 4 is provided with the connecting rod 10, only needs to install connecting bolt 2 additional just can be connected with the valve body end cover, includes that go-between 11 also only needs the bolt just can be connected with pneumatic actuator 5 simultaneously, and it is not only convenient to set up like this, easily installs moreover and dismantles.
According to the above, the valve rod 9 and the lower linkage 8 are coaxially connected with the valve cover assembly 3. The coaxial connection ensures the stability of the valve operation.
According to the above, the upper linkage, the locknut 6 and the upper stem are coaxially connected. The coaxial connection ensures the stability of the valve operation.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a low temperature pneumatic stop valve executor and valve connection structure, a serial communication port, includes valve body (1), valve body (1) central authorities are provided with valve gap assembly (3), valve gap assembly (3) central authorities are connected with valve rod (9), link (8) down have been cup jointed on valve rod (9), link (8) top is provided with calibrated scale (7) down, link (8) and last link are about calibrated scale (7) longitudinal symmetry down, it is connected with last valve rod through lock nut (6) to go up the link, it is located pneumatic actuator (5) central position to go up the valve rod, pneumatic actuator (5) pass through bolted connection with connector (4), the other end of connector (4) passes through connecting bolt (2) and is connected with the end cover of valve body (1).
2. A cryogenic pneumatic stop valve actuator and valve connection according to claim 1, wherein the connecting body (4) comprises a connecting rod (10) and a connecting ring (11).
3. The connection structure of the actuator and the valve of the low-temperature pneumatic stop valve according to claim 2, characterized in that one end of the connecting rod (10) is integrated with the connecting ring (11), and the top of the other end is provided with threads and connected with the connecting bolt (2).
4. The connection structure of the actuator and the valve of the low-temperature pneumatic stop valve according to claim 2, wherein four through holes are uniformly distributed on the connecting ring (11), and the four through holes are connected with the pneumatic actuator (5) through bolts.
5. A cryogenic pneumatic stop valve actuator and valve connection according to claim 1 wherein the valve stem (9), lower link (8) and bonnet assembly (3) are coaxially connected.
6. A cryogenic pneumatic stop valve actuator and valve connection according to claim 1 wherein the upper linkage, lock nut (6) and upper stem are coaxially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922157186.2U CN211010092U (en) | 2019-12-05 | 2019-12-05 | Low-temperature pneumatic stop valve actuator and valve connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922157186.2U CN211010092U (en) | 2019-12-05 | 2019-12-05 | Low-temperature pneumatic stop valve actuator and valve connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211010092U true CN211010092U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922157186.2U Active CN211010092U (en) | 2019-12-05 | 2019-12-05 | Low-temperature pneumatic stop valve actuator and valve connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211010092U (en) |
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2019
- 2019-12-05 CN CN201922157186.2U patent/CN211010092U/en active Active
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