CN210661364U - Pull rod sealing assembly - Google Patents
Pull rod sealing assembly Download PDFInfo
- Publication number
- CN210661364U CN210661364U CN201921540577.6U CN201921540577U CN210661364U CN 210661364 U CN210661364 U CN 210661364U CN 201921540577 U CN201921540577 U CN 201921540577U CN 210661364 U CN210661364 U CN 210661364U
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- sealing
- seat cover
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- flange plate
- sealing rubber
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Abstract
The utility model relates to a pull rod seal assembly. The sealing seat cover comprises a sealing seat cover, a lower flange plate, an upper flange plate, a pressing ring and a sealing rubber ring, wherein the lower flange plate is arranged below the sealing seat cover, the upper flange plate is arranged above the sealing seat cover, the sealing rubber ring is arranged inside the sealing seat cover, an extrusion spring is sleeved outside the multi-layer sealing rubber ring, a first sealing ring is arranged at the joint of the upper sealing seat cover and the upper flange plate, and a second sealing ring is arranged at the joint of the lower flange plate and the lower sealing seat cover. The utility model discloses seal assembly stable in structure, the extrusion spring in the multilayer sealing rubber circle outside makes it produce deformation to the extrusion of multilayer sealing rubber circle and expands to the inboard, and sealing rubber circle hole reduces, and sealing rubber circle hole only embraces the piston rod, ensures its leakproofness.
Description
Technical Field
The utility model belongs to the technical field of sealing device, in particular to pull rod seal assembly.
Background
The oil cylinder is sealing equipment, and the cylinder body tip needs to be sealed with the lid, and the piston rod runs through sealed lid, and the piston rod passes sealed lid reciprocating motion, in order to ensure the cylinder body leakproofness, sealing assembly need with the piston rod junction close coupling to prevent piston rod department leakage.
SUMMERY OF THE UTILITY MODEL
The present invention provides a tie rod sealing assembly to solve the above-mentioned technical problems.
The utility model provides a technical scheme that above-mentioned technical problem took is: a tie rod seal assembly characterized by: the sealing seat cover comprises a sealing seat cover body, a lower flange plate, an upper flange plate, a pressing ring and a sealing rubber ring, wherein the lower flange plate is arranged below the sealing seat cover body, the upper flange plate is arranged above the sealing seat cover body, the sealing rubber ring is arranged inside the sealing seat cover body, a plurality of layers of sealing rubber rings are arranged in a row, an extrusion spring is sleeved on the outer side of each layer of sealing rubber ring, the extrusion spring is clamped into a radial groove in the outer side of each sealing rubber ring, the bottom of the bottommost layer of sealing rubber ring is clamped on a lower convex ring of the sealing seat cover body, the pressing ring is arranged at the top of the topmost layer of sealing rubber ring, the pressing ring is fixed on an upper notch of the sealing seat cover body, a first sealing ring is arranged at the joint of the upper flange plate and.
Furthermore, a steel sleeve is arranged on the outer side of the sealing seat sleeve, the top of the steel sleeve is connected with the upper flange plate, and the bottom of the steel sleeve is connected with the base of the sealing seat sleeve.
The utility model has the advantages that:
(1) the sealing seat sleeve and the pressing ring play roles in fixing and supporting the multilayer sealing rubber ring, and the multilayer sealing rubber ring plays a role in sealing the connection between the piston rod and the sealing assembly;
(2) the extrusion spring outside the multilayer sealing rubber circle extrudees the multilayer sealing rubber circle and makes it produce deformation, and the multilayer sealing rubber circle outside is spacing by sealed seat cover, and the inboard inflation is enclosed to the sealing rubber under the extrusion force, and the sealing rubber circle hole is dwindled, and the sealing rubber circle hole only embraces the piston rod, ensures its leakproofness.
(3) The joint of the upper flange and the upper flange above the sealing seat sleeve is provided with a first sealing ring, the joint of the lower flange and the lower flange below the sealing seat sleeve is provided with a second sealing ring, and the first sealing ring and the second sealing ring play a role in reinforcing and assisting the sealing of the pull rod sealing assembly.
Drawings
Fig. 1 is a cross-sectional view of a tie rod seal assembly according to the present invention;
in the figure: the sealing device comprises a sealing seat sleeve-1, a lower flange-11, an upper notch-12, a base-13, a lower flange-2, an upper flange-3, a pressing ring-4, a sealing rubber ring-5, an extrusion spring-6, a first sealing ring-7, a second sealing ring-8 and a steel sleeve-9.
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. The components of the embodiments of the present invention, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
As an example, as shown in fig. 1, a pull rod seal assembly includes a seal sleeve 1, a lower flange 2, an upper flange 3, a pressing ring 4, and a seal rubber ring 5, wherein the seal sleeve, the lower flange, the upper flange, and the pressing ring are made of stainless steel, the seal rubber ring is made of PVC, the lower flange 2 is arranged below the seal sleeve 1, the upper flange 3 is arranged above the seal sleeve 1, and the lower flange and the upper flange are used for connecting with a cylinder body, thereby connecting the pull rod seal assembly to an end portion of a cylinder body. The base of sealing seat cover passes through bolt fixed connection with lower flange dish, the upper portion and the last ring flange of sealing seat cover pass through bolt fixed connection, 1 inside sealing rubber circle 5 that is equipped with of sealing seat cover, sealing rubber circle interference is filled inside sealing seat cover, 5 lists in the multilayer sealing rubber circle, 5 outside covers in the multilayer sealing rubber circle have extrusion spring 6, extrusion spring 6 card is gone into in the radial recess in the sealing rubber circle outside, extrusion spring produces the extrusion to the multilayer sealing rubber circle, make it take place deformation, under outside sealing seat cover limiting displacement, the inside inflation of sealing rubber circle produces the extrusion to the piston rod. The bottom of the bottommost layer sealing rubber ring is clamped on a lower convex ring 11 of the sealing seat sleeve 1, the pressing ring 4 is arranged at the top of the topmost layer sealing rubber ring 5, the pressing ring 4 is fixed on an upper concave opening 12 of the sealing seat sleeve 1, and the pressing ring is used for pressing the sealing rubber ring. The joint of the upper part of the sealing seat sleeve 1 and the upper flange plate 3 is provided with a first sealing ring 7, the joint of the lower part of the sealing seat sleeve 1 and the lower flange plate 2 is provided with a second sealing ring 8, and the first sealing ring and the second sealing ring play a role in reinforcing and assisting the sealing of the pull rod sealing assembly.
Further, a steel sleeve 9 is arranged on the outer side of the sealing seat sleeve 1, the top of the steel sleeve 9 is connected with the upper flange plate 3, and the bottom of the steel sleeve 9 is connected with a base 13 of the sealing seat sleeve. The steel sleeve plays a role in strengthening the overall structural strength of the pull rod sealing assembly, so that the piston rod is stable in structure in the reciprocating motion process.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be dominated by the protection scope of the claims.
Claims (2)
1. A tie rod seal assembly characterized by: the sealing seat cover comprises a sealing seat cover body, a lower flange plate, an upper flange plate, a pressing ring and a sealing rubber ring, wherein the lower flange plate is arranged below the sealing seat cover body, the upper flange plate is arranged above the sealing seat cover body, the sealing rubber ring is arranged inside the sealing seat cover body, a plurality of layers of sealing rubber rings are arranged in a row, an extrusion spring is sleeved on the outer side of each sealing rubber ring, the extrusion spring is clamped into a radial groove in the outer side of each sealing rubber ring, the bottom of the bottommost sealing rubber ring is clamped on a lower convex ring of the sealing seat cover body, the top of the topmost sealing rubber ring is arranged on the pressing ring, the pressing ring is fixed on an upper notch of the sealing seat cover body, a first sealing ring is arranged at the joint of the upper flange plate and the upper flange plate above.
2. The tie rod seal assembly of claim 1, wherein the outer side of the seal housing is provided with a steel sleeve, the top of the steel sleeve is connected with the upper flange plate, and the bottom of the steel sleeve is connected with the base of the seal housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921540577.6U CN210661364U (en) | 2019-09-17 | 2019-09-17 | Pull rod sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921540577.6U CN210661364U (en) | 2019-09-17 | 2019-09-17 | Pull rod sealing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210661364U true CN210661364U (en) | 2020-06-02 |
Family
ID=70813619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921540577.6U Active CN210661364U (en) | 2019-09-17 | 2019-09-17 | Pull rod sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210661364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325956A (en) * | 2020-10-12 | 2021-02-05 | 南京中宇自动化有限公司 | Induction type high-temperature gas-solid two-phase flow measuring instrument and measuring method thereof |
-
2019
- 2019-09-17 CN CN201921540577.6U patent/CN210661364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325956A (en) * | 2020-10-12 | 2021-02-05 | 南京中宇自动化有限公司 | Induction type high-temperature gas-solid two-phase flow measuring instrument and measuring method thereof |
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