CN212775855U - Cauldron bottom valve cylinder with protection device - Google Patents
Cauldron bottom valve cylinder with protection device Download PDFInfo
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- CN212775855U CN212775855U CN202021498295.7U CN202021498295U CN212775855U CN 212775855 U CN212775855 U CN 212775855U CN 202021498295 U CN202021498295 U CN 202021498295U CN 212775855 U CN212775855 U CN 212775855U
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- protection device
- piston rod
- cylinder
- bottom plate
- cover portion
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Abstract
The utility model discloses a cauldron bottom valve cylinder with protection device, including the installation external member to and install the cylinder at installation external member lower extreme, the piston rod of cylinder runs through the bottom plate of installation external member, and the up end fixed mounting of bottom plate has protection device, and protection device is used for covering the pit between bottom plate and the piston rod. The utility model has the advantages that: the protection device is fixedly arranged on the upper end face of the bottom plate of the installation kit, the protection device completely covers the concave pit between the bottom plate and the piston rod, liquid media cannot enter the interior of the air cylinder from the edge of the piston rod, and the sealing performance of the air cylinder is protected from being damaged.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field especially relates to a cauldron bottom valve cylinder with protection device.
Background
Control valves are divided into three major categories according to the power source of the actuator: pneumatic, electric and hydraulic, and the petroleum and chemical industries mostly adopt pneumatic execution power sources for control, and the pneumatic hydraulic control system has the characteristics of stable action, simple structure, complete varieties, intrinsic safety, convenience in maintenance and the like. The pneumatic kettle bottom valve is one of pneumatic control valves and is used for discharging control of the reaction kettle. The bottom plate of the installation kit of the conventional kettle bottom valve execution mechanism needs to reserve an avoidance space and install the avoidance space and the cylinder piston rod, so the contact surface between the bottom plate of the installation kit and the cylinder piston rod is designed into a concave surface, in daily use, water and solvent liquid leaked from the sealing position of the valve rod are easily accumulated at a pit, and the butyronitrile O-shaped rubber seal arranged between the cylinder piston rod and the upper cover plate of the cylinder is used for a long time, accumulated water or solvent liquid accumulated at the pit is easily leaked into the inner part of the cylinder from the sealing position of the cylinder piston rod, and the O-shaped rubber is corroded to reduce the sealing performance of the cylinder, so that the valve action is influenced, if the cylinder is disassembled, removed and maintained, the reaction kettle needs to be stopped, so that the production efficiency.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a cauldron bottom valve cylinder with protection device mainly solves the problem of the easy ponding of pit that forms between the bottom plate of installation external member and the cylinder piston rod.
In order to solve the technical problem, the technical scheme of the utility model as follows:
the utility model provides a cauldron bottom valve cylinder with protection device, includes the installation external member, and installs the cylinder of installation external member lower extreme, the piston rod of cylinder runs through the bottom plate of installation external member, the up end fixed mounting of bottom plate has protection device, protection device is used for covering the bottom plate with pit between the piston rod.
In some embodiments, the protection device includes a first cover portion that is a flat mounting member having an annular shape and is mounted on an upper end of the recess, and a second cover portion that is a hollow cylinder mounted on an upper end of the first cover portion and extends in an axial direction of the piston rod.
In some embodiments, the second cover portion is an interference fit with the piston rod.
In some embodiments, a first screw hole is formed in a surface of the first covering portion, a second screw hole corresponding to the screw hole in size and position is formed in the bottom plate, and a bolt for fixing and mounting is arranged between the first screw hole and the second screw hole.
In some embodiments, the first cover portion and the second cover portion are fixedly connected.
In some embodiments, the first cover portion and the second cover portion are fixedly connected by corresponding threads.
In some embodiments, the installation kit further includes a plurality of support columns installed on the bottom plate, and a top plate installed at the upper ends of the support columns, wherein a guide rail is arranged on the inner side of one of the support columns, a fixing member is arranged in the middle of the piston rod, a pulley is arranged on the fixing member at a position corresponding to the guide rail, and a concave portion of the pulley is clamped on the guide rail.
The utility model has the advantages that: the protection device is fixedly arranged on the upper end face of the bottom plate of the installation kit, the protection device completely covers the concave pit between the bottom plate and the piston rod, liquid media cannot enter the interior of the air cylinder from the edge of the piston rod, and the sealing performance of the air cylinder is protected from being damaged.
Drawings
Fig. 1 is a perspective view of a kettle bottom valve cylinder with a protection device after the protection device is hidden in the embodiment of the utility model;
fig. 2 is a perspective view of a kettle bottom valve cylinder with a protection device disclosed in the embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 taken along line A;
wherein: 1-installation kit, 2-cylinder, 3-protection device, 4-pit, 11-bottom plate, 12-support column, 13-top plate, 14-guide rail, 21-piston rod, 22-fixing piece, 23-pulley, 31-first covering part, 32-second covering part.
Detailed Description
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1-3, a kettle bottom valve cylinder with a protection device comprises an installation kit 1 and a cylinder 2 installed at the lower end of the installation kit 1, wherein a piston rod 21 of the cylinder 2 penetrates through a bottom plate 11 of the installation kit 1, the protection device 3 is fixedly installed on the upper end surface of the bottom plate 11, and the protection device 3 is used for covering a pit 4 between the bottom plate 11 and the piston rod 21.
Through at the bottom plate 11 up end fixed mounting of installation external member 1 protection device 3, make protection device 3 cover the pit 4 between bottom plate 11 and the piston rod 21 completely, liquid medium can't get into the inside of cylinder 2 from the edge of piston rod 21, and protection cylinder 2 sealing performance does not receive the destruction.
As one of preferred embodiments of the present invention, the protector 3 includes a first covering portion 31 and a second covering portion 32, the first covering portion 31 is a flat mounting member having a ring shape and is mounted at the upper end of the recess 4, and the second covering portion 32 is a hollow cylinder mounted at the upper end of the first covering portion 31 and extends in the axial direction of the piston rod 21. The first cover portion 31 is used to prevent the accumulation of liquid, and the second cover portion 32 is used to prevent the liquid from seeping into the interior of the cylinder 2 along the piston rod 21 to cause the corrosion and the aging of the rubber seal, thereby protecting the sealing performance of the cylinder 2 from being affected.
Furthermore, for better sealing performance, the second cover portion and the piston rod need to be designed to have an interference fit, so as to prevent liquid from entering the concave pit 4 as much as possible.
In principle, the protection device 3 completely covers the bottom plate 11, and may be a fixed connection or a movable connection, and in fact, the fixed connection is better, such as welding, and reference is made to a fixed connection mode that a first screw hole is formed in the surface of the first covering portion 31, a second screw hole corresponding to the size and the position of the screw hole is formed in the bottom plate 11, a bolt for fixed installation is arranged between the first screw hole and the second screw hole, and the first covering portion 31 is fixed on the bottom plate 11 by using the bolt. The first and second screw holes and the bolt are not shown in fig. 1-3, but those skilled in the art will appreciate their application.
The first covering portion 31 and the second covering portion 32 are fixedly connected, and they are regarded as a whole. Optionally, the first covering portion 31 and the second covering portion 32 are fixedly connected through corresponding threads, so that the second covering portion 32 can be conveniently detached from the upper end of the first covering portion 31, the first covering portion 31 can be conveniently installed in the earlier stage, and the situation that the size of a combined part is too large and the first covering portion 31 is difficult to install is avoided.
As another preferred embodiment of the present invention, the above-mentioned installation kit 1 further includes a plurality of support columns 12 installed on the bottom plate 11, and a top plate 13 installed on the upper ends of the support columns 12, wherein the inner side of one of the support columns 12 is provided with a guide rail 14, the middle portion of the piston rod 21 is provided with a fixing member 22, the fixing member 22 is provided with a pulley 23 at a position corresponding to the guide rail 14, and a recessed portion of the pulley 23 is clamped on the guide rail 14. The vertical movement of the piston rod 21 is limited and supported through the relative movement of the pulley 23 and the guide rail 14, and the function of protecting the piston rod 21 is achieved.
In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. The utility model provides a cauldron bottom valve cylinder with protection device, includes the installation external member, and installs the cylinder of installation external member lower extreme, the piston rod of cylinder runs through the bottom plate of installation external member, its characterized in that, the up end fixed mounting of bottom plate has protection device, protection device is used for covering the bottom plate with pit between the piston rod.
2. The bottom valve cylinder with a protector as set forth in claim 1, wherein the protector includes a first cover portion that is a flat mounting member having an annular shape and is mounted on an upper end of the recess, and a second cover portion that is a hollow cylindrical body mounted on an upper end of the first cover portion and extends in an axial direction of the piston rod.
3. The bottom valve cylinder with protection device of claim 2, wherein the second cover portion is in interference fit with the piston rod.
4. The bottom valve cylinder with the protection device as claimed in claim 2, wherein the first covering portion has a first screw hole on a surface thereof, the bottom plate has a second screw hole corresponding to the screw hole in size and position, and a bolt for fixing is provided between the first screw hole and the second screw hole.
5. The bottom valve cylinder with the protection device as claimed in claim 2, wherein the first cover portion and the second cover portion are fixedly connected.
6. The bottom valve cylinder with the protection device as claimed in claim 5, wherein the first cover portion and the second cover portion are fixedly connected through corresponding threads.
7. The kettle bottom valve air cylinder with the protection device as claimed in claim 1, wherein the mounting kit further comprises a plurality of support pillars mounted on the bottom plate, and a top plate mounted on the upper ends of the support pillars, wherein a guide rail is provided on the inner side of one of the support pillars, a fixing member is provided in the middle of the piston rod, a pulley is provided on the fixing member at a position corresponding to the guide rail, and a concave portion of the pulley is clamped on the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021498295.7U CN212775855U (en) | 2020-07-23 | 2020-07-23 | Cauldron bottom valve cylinder with protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021498295.7U CN212775855U (en) | 2020-07-23 | 2020-07-23 | Cauldron bottom valve cylinder with protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212775855U true CN212775855U (en) | 2021-03-23 |
Family
ID=75039027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021498295.7U Active CN212775855U (en) | 2020-07-23 | 2020-07-23 | Cauldron bottom valve cylinder with protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212775855U (en) |
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2020
- 2020-07-23 CN CN202021498295.7U patent/CN212775855U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 511458 No.9 Huanshi Avenue North, Nansha street, Nansha District, Guangzhou, Guangdong (office building only) Patentee after: Jiantao (Guangzhou) electronic material manufacturing Co.,Ltd. Address before: 511458 No.9 Huanshi Avenue North, Nansha street, Nansha District, Guangzhou, Guangdong (office building only) Patentee before: Jiantao (Guangzhou) High-tech New Materials Co.,Ltd. |