CN210860006U - Novel seal structure of pneumatic actuator - Google Patents
Novel seal structure of pneumatic actuator Download PDFInfo
- Publication number
- CN210860006U CN210860006U CN201921532966.4U CN201921532966U CN210860006U CN 210860006 U CN210860006 U CN 210860006U CN 201921532966 U CN201921532966 U CN 201921532966U CN 210860006 U CN210860006 U CN 210860006U
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- cylinder body
- sealing
- groove
- upper cover
- ring
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a novel seal structure of pneumatic actuator, including cylinder body and upper cover, the cylinder body is cylindricly, and institute upper cover outside lower extreme integrated into one piece is connected with the outer lane lower extreme outside integrated into one piece is connected with first boss, the welding of the cylinder body outside has the second boss, through fixing bolt fixed connection between second boss and the first boss, the terminal surface just is located the inboard integrated into one piece of cylinder body and is connected with the bulge loop under the upper cover, first slot has all been seted up to the inside and outside both sides wall of cylinder body and the junction that is located bulge loop and outer lane, the embedded first sealing washer that is equipped with of first slot. The contact surface of the cylinder body and the lower end surface of the upper cover is provided with the second sealing ring, the contact surfaces of the cylinder body, the convex ring and the outer ring are provided with the first sealing ring, the upper cover is sealed in a triple way, and the sealing property between the cylinder body and the upper cover is improved; and a third sealing ring and a fourth sealing ring are arranged on the contact surface between the piston and the cylinder body, so that the sealing property between the cylinder body and the piston is improved.
Description
Technical Field
The utility model relates to a pneumatic actuator technical field specifically is a novel seal structure of pneumatic actuator.
Background
The pneumatic actuator is an actuating device for opening and closing or adjusting a valve by air pressure, is also called a pneumatic actuating mechanism or a pneumatic device, and is generally called a pneumatic head. The upper cover of the existing pneumatic actuator is directly connected with the cylinder body through the bolt, the sealing performance is weak, and the risk of leakage failure exists. Therefore, a novel sealing structure of the pneumatic actuator is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel seal structure of pneumatic actuator 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: a novel sealing structure of a pneumatic actuator comprises a cylinder body and an upper cover, wherein the cylinder body is cylindrical, the lower end of the outer side of the upper cover is integrally connected with an outer ring, the outer side of the lower end of the outer ring is integrally connected with a first boss, a second boss is welded on the outer side of the cylinder body, the second boss is fixedly connected with the first boss through a fixing bolt, a convex ring is integrally connected on the lower end surface of the upper cover and positioned at the inner side of the cylinder body, first grooves are respectively arranged on the two side walls of the inner side and the outer side of the cylinder body and positioned at the joint of the convex ring and the outer ring, a first sealing ring is embedded in the first groove, a second groove is arranged on the upper end surface of the cylinder body, the embedded second sealing washer that is equipped with of second slot, install the piston in the cylinder body, third slot and fourth slot have been seted up to the piston and the connection face of cylinder body, inlay respectively in third slot and the fourth slot and be equipped with third sealing washer and fourth sealing washer.
Preferably, the second sealing ring is an O-ring.
Preferably, the first groove, the second groove, the third groove and the fourth groove are all annular grooves.
Preferably, polytetrafluoroethylene gaskets are embedded in the third groove and the fourth groove and located at the upper end and the lower end of the third sealing ring and the fourth sealing ring.
Compared with the prior art, the beneficial effects of the utility model are that: the contact surface of the cylinder body and the lower end surface of the upper cover is provided with the second sealing ring, the contact surfaces of the cylinder body, the convex ring and the outer ring are provided with the first sealing ring, the upper cover is sealed in a triple way, and the sealing property between the cylinder body and the upper cover is improved; the contact surface between piston and the cylinder body sets up third sealing washer and fourth sealing washer, improve the leakproofness between cylinder body and the piston, and both ends all set up the polytetrafluoroethylene gasket about third sealing washer and fourth sealing washer, the piston is at the in-process that removes, both ends face and polytetrafluoroethylene gasket contact about third sealing washer and the fourth sealing washer, avoid third sealing washer and fourth sealing washer and third slot and fourth slot direct contact, reduce the wearing and tearing of third sealing washer and fourth sealing washer, guarantee good leakproofness.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;
fig. 3 is a schematic view of a part of the enlarged structure at B in fig. 1 according to the present invention.
In the figure: the sealing device comprises a cylinder body 1, an upper cover 2, an outer ring 3, a first boss 4, a second boss 5, a fixing bolt 6, a convex ring 7, a first sealing ring 8, a second sealing ring 9, a piston 10, a third sealing ring 11, a fourth sealing ring 12 and a polytetrafluoroethylene gasket 13.
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.
Referring to fig. 1-3, the present invention provides a technical solution: a novel sealing structure of a pneumatic actuator comprises a cylinder body 1 and an upper cover 2, wherein the cylinder body 1 is cylindrical, the lower end of the outer side of the upper cover 2 is integrally connected with an outer ring 3, the outer side of the lower end of the outer ring 3 is integrally connected with a first boss 4, a second boss 5 is welded on the outer side of the cylinder body 1, the second boss 5 is fixedly connected with the first boss 4 through a fixing bolt 6, a convex ring 7 is integrally connected with the lower end face of the upper cover 2 and positioned on the inner side of the cylinder body 1, first grooves are respectively formed in the inner side wall and the outer side wall of the cylinder body 1 and positioned at the joint of the convex ring 7 and the outer ring 3, a first sealing ring 8 is embedded in each first groove, a second groove is formed in the upper end face of the cylinder body 1, a second sealing ring 9 is embedded in each second groove, a piston 10 is installed in the cylinder body 1, and a third groove, and a third sealing ring 11 and a fourth sealing ring 12 are respectively embedded in the third groove and the fourth groove.
Specifically, the second seal ring 9 is an O-ring.
Specifically, the first groove, the second groove, the third groove and the fourth groove are all annular grooves.
Specifically, the polytetrafluoroethylene gaskets 13 are embedded at the upper end and the lower end of the third sealing ring 11 and the fourth sealing ring 12 in the third groove and the fourth groove, the piston 10 is in the moving process, the upper end face and the lower end face of the third sealing ring 11 and the fourth sealing ring 12 are in contact with the polytetrafluoroethylene gaskets 13, the third sealing ring 11 and the fourth sealing ring 12 are prevented from being in direct contact with the third groove and the fourth groove, the abrasion of the third sealing ring 11 and the fourth sealing ring 12 is reduced, and good sealing performance is guaranteed.
Specifically, when the sealing device is used, a second sealing ring 9 is arranged on a contact surface of the cylinder body 1 and the lower end surface of the upper cover 2, first sealing rings 8 are arranged on contact surfaces of the cylinder body 1, the convex ring 7 and the outer ring 3, triple sealing is carried out on the upper cover 2, and the sealing performance between the cylinder body 1 and the upper cover 2 is improved; the contact surface between the piston 10 and the cylinder body 1 is provided with a third sealing ring 11 and a fourth sealing ring 12, the sealing performance between the cylinder body 1 and the piston 10 is improved, the upper end and the lower end of the third sealing ring 11 and the upper end and the lower end of the fourth sealing ring 12 are respectively provided with a polytetrafluoroethylene gasket 13, the piston 10 is in the moving process, the upper end and the lower end of the third sealing ring 11 and the lower end of the fourth sealing ring 12 are in contact with the polytetrafluoroethylene gaskets 13, the third sealing ring 11 and the fourth sealing ring 12 are prevented from being in direct contact with a third groove and a fourth groove, the abrasion of the third sealing ring 11 and the fourth sealing ring 12 is reduced, and the good sealing performance is ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a novel seal structure of pneumatic actuator, includes cylinder body (1) and upper cover (2), its characterized in that: the cylinder body (1) is cylindrical, the outer ring (3) is integrally formed and connected at the lower end of the outer side of the upper cover (2), the first boss (4) is integrally formed and connected at the lower end of the outer ring (3), the second boss (5) is welded at the outer side of the cylinder body (1), the second boss (5) is fixedly connected with the first boss (4) through a fixing bolt (6), the lower end face of the upper cover (2) is positioned at the inner side of the cylinder body (1) and is integrally formed and connected with a convex ring (7), first grooves are formed in the connecting parts of the inner side wall and the outer side wall of the cylinder body (1) and positioned between the convex ring (7) and the outer ring (3), first sealing rings (8) are embedded in the first grooves, second grooves are formed in the upper end face of the cylinder body (1), second sealing rings (9) are embedded in the second grooves, pistons (10) are installed in, a third groove and a fourth groove are formed in the connecting surface of the piston (10) and the cylinder body (1), and a third sealing ring (11) and a fourth sealing ring (12) are embedded in the third groove and the fourth groove respectively.
2. The novel sealing structure of the pneumatic actuator according to claim 1, wherein: the second sealing ring (9) is an O-shaped sealing ring.
3. The novel sealing structure of the pneumatic actuator according to claim 1, wherein: the first groove, the second groove, the third groove and the fourth groove are all annular grooves.
4. The novel sealing structure of the pneumatic actuator according to claim 1, wherein: and polytetrafluoroethylene gaskets (13) are embedded at the upper ends and the lower ends of the third sealing ring (11) and the fourth sealing ring (12) in the third groove and the fourth groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921532966.4U CN210860006U (en) | 2019-09-16 | 2019-09-16 | Novel seal structure of pneumatic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921532966.4U CN210860006U (en) | 2019-09-16 | 2019-09-16 | Novel seal structure of pneumatic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210860006U true CN210860006U (en) | 2020-06-26 |
Family
ID=71304146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921532966.4U Active CN210860006U (en) | 2019-09-16 | 2019-09-16 | Novel seal structure of pneumatic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210860006U (en) |
-
2019
- 2019-09-16 CN CN201921532966.4U patent/CN210860006U/en active Active
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