CN215214719U

CN215214719U - Oil seal ring convenient to peel off

Info

Publication number: CN215214719U
Application number: CN202121701884.5U
Authority: CN
Inventors: 张凯
Original assignee: Tengfu Sealing Technology Shanghai Co ltd
Current assignee: Tengfu Sealing Technology Shanghai Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2021-12-17
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses an oil seal circle convenient to peel off, including the sealing washer that is loop configuration, the oil seal circle is embedded to be equipped with perpendicular cut-off section and is the steel ring of U-shaped structure, the perforation of running through the steel ring is seted up to the axial lead in the oil seal circle on a parallel with, it has hollow structure's movable rod to slide-mount in the perforation, a plurality of bleeder vents have been seted up on the movable rod. The utility model discloses a dismantle the sealing plug on two terminal surfaces of sealing washer, promote the movable rod from arbitrary one end, make rubber sleeve and ventilative groove dislocation, make ventilative groove pass through intercommunication in bleeder vent and the movable rod, the both ends that external air passes through the movable rod and the inboard ventilative groove intercommunication of sealing washer, with the binding face to the outer wall of sealing washer inboard and axle disappointing, thereby make the laminating power of sealing washer and axle outer wall diminish, with the convenience that the improvement peeled off the sealing washer from the axle outer wall, a sealing washer convenient to peel off has been realized.

Description

Oil seal ring convenient to peel off

Technical Field

The utility model relates to an oil seal circle convenient to peel off.

Background

The hydraulic cylinder seal is a mechanism which is arranged on a hydraulic pump shaft and a hydraulic motor shaft, prevents working media from leaking outside a shell along the shaft and prevents external dust from reversely invading into a machine body, prevents the leakage (internal leakage and external leakage) of the working media and prevents external foreign matters (such as air, dust, water and the like) from entering a hydraulic element and a hydraulic system, and is mostly made of rubber.

When the existing oil seal ring is recovered, the oil seal ring needs to be peeled off from the shaft, but the oil seal ring is tightly attached to the outer wall of the shaft, so that the oil seal ring is not easy to peel off, and the oil seal ring convenient to peel off is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an oil seal circle convenient to peel off has solved the problem that oil seal circle is not convenient for peel off when retrieving in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an oil seal circle convenient to peel off, is including the sealing washer that is loop configuration, the embedded steel ring that is the U-shaped structure of vertical section that is equipped with of oil seal circle, the perforation of running through the steel ring has been seted up to the axial lead in the oil seal circle on a parallel with, it has hollow structure's movable rod to slide mounting in the perforation, a plurality of bleeder vents have been seted up on the movable rod, and the both sides of every bleeder vent all are provided with the rubber sleeve of fixed cover establishing on the movable rod, the both sides of sealing washer all are provided with the sealing plug of closing the connection soon with the movable rod to inject the activity of movable rod in the perforation, there is the space between movable rod and the fenestrate inner wall, the movable rod offsets through the outer wall and the fenestrate inner wall of rubber sleeve, set up on the medial surface of sealing washer with a plurality of ventilative grooves of perforation intercommunication.

Preferably, the inner sides of the two ends of the movable rod are respectively provided with a threaded structure, the length of the movable rod is equal to the thickness of the sealing ring, the sealing plug is of a T-shaped structure, and the vertical end of the sealing plug is in threaded connection with the two ends of the movable rod.

Preferably, when the two ends of the movable rod are flush with the two ends of the sealing ring, the rubber sleeve on the movable rod is positioned at the position of the ventilation groove to block the communication between the ventilation groove and the movable rod.

Preferably, the perforation is provided with a plurality of, and a plurality of perforation is distributed on the sealing washer in annular array, the perforation runs through two vertical ends of the steel ring that the vertical cross-section is the U-shaped structure.

Preferably, the horizontal end of the steel ring with the U-shaped cross section is provided with a plurality of limiting teeth, and the outer wall of the steel ring is fixedly connected with the sealing ring.

Preferably, the movable rod is made of steel.

The utility model discloses possess following beneficial effect at least:

1. through dismantling the sealing plug on two terminal surfaces of sealing washer, promote the movable rod from arbitrary one end, make rubber sleeve and ventilative groove dislocation, make ventilative groove pass through intercommunication in bleeder vent and the movable rod, the both ends that external air passes through the movable rod and the inboard ventilative groove intercommunication of sealing washer, with the binding face to the outer wall of sealing washer inboard and axle disappointing, thereby make the laminating power of sealing washer and axle outer wall diminish, with the convenience of peeling off the sealing washer from the axle outer wall that improves, a sealing washer convenient to peel off has been realized.

2. Through the embedded steel ring that is equipped with the vertical cross section and is the U-shaped structure of sealing washer to and the setting of the movable rod of steel construction, under the sealed effect's of not influencing the sealing washer the condition, improved the structurality and the intensity of sealing washer, realized a modular sealing washer structure, reduced the sealing washer cover and taken place the condition emergence that warp when epaxial or dismantling.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic cross-sectional view of a seal ring structure;

FIG. 2 is a schematic view of the movable rod structure;

FIG. 3 is a schematic front view of a seal ring;

fig. 4 is a schematic structural diagram of a steel ring.

In the figure: 1. a seal ring; 2. a steel ring; 3. limiting teeth; 4. a ventilation groove; 5. a movable rod; 6. a sealing plug; 7. air holes are formed; 8. a rubber sleeve; 9. and (6) perforating.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, an oil seal ring convenient for stripping comprises a seal ring 1 in an annular structure, a steel ring 2 with a U-shaped vertical section is embedded in the oil seal ring 1, a through hole 9 penetrating through the steel ring 2 is arranged in the oil seal ring 1 in parallel with an axial lead, a movable rod 5 with a hollow structure is slidably mounted in the through hole 9, a plurality of vent holes 7 are arranged on the movable rod 5, rubber sleeves 8 fixedly sleeved on the movable rod 5 are arranged on two sides of each vent hole 7, sealing plugs 6 connected with the movable rods 5 in a screwing manner are arranged on two sides of the seal ring 1 so as to limit the movement of the movable rod 5 in the through hole 9, a gap exists between the movable rod 5 and the inner wall of the through hole 9, the movable rod 5 abuts against the inner wall of the through hole 9 through the outer wall of the rubber sleeve 8, a plurality of vent grooves 4 communicated with the through hole 9 are arranged on the inner side surface of the seal ring 1, the inner sides of two ends of the movable rod 5 are provided with thread structures, the length of the movable rod 5 is equal to the thickness of the sealing ring 1, the sealing plug 6 is of a T-shaped structure, the vertical end of the sealing plug 6 is in threaded connection with the two ends of the movable rod 5, when the two ends of the movable rod 5 are flush with the two ends of the sealing ring 1, the rubber sleeve 8 on the movable rod 5 is positioned at the position of the ventilation groove 4 to block the communication between the ventilation groove 4 and the movable rod 5, a plurality of perforations 9 are arranged, the perforations 9 are distributed on the sealing ring 1 in an annular array mode, the perforations 9 penetrate through the two vertical ends of the steel ring 2 with the U-shaped cross section, a plurality of limiting teeth 3 are arranged at the horizontal end of the steel ring 2 with the U-shaped cross section, the outer wall of the steel ring 2 is fixedly connected with the sealing ring 1, and the movable rod 5 is made of steel;

the steel ring 2 with the U-shaped vertical cross section and the movable rod 5 of the steel structure are embedded in the sealing ring 1, so that the structure and the strength of the sealing ring 1 are improved under the condition that the sealing effect of the sealing ring 1 is not influenced, and the structure of the combined sealing ring 1 is realized;

during the use, when sealing washer 1 retrieves, through dismantling sealing plug 6 on 1 two terminal surfaces of sealing washer, then promote movable rod 5 from arbitrary one end, make rubber sleeve 8 and ventilative groove 4 dislocation, make ventilative groove 4 through intercommunication in bleeder vent 7 and the movable rod 5, at this moment, the both ends that external air passes through movable rod 5 and the ventilative groove 4 intercommunication of 1 inboard of sealing washer, in order to lose heart with the binding face of the outer wall of axle 1 inboard of sealing washer, thereby make the laminating power of sealing washer 1 and axle outer wall diminish, in order to improve the convenience of peeling off sealing washer 1 from the axle outer wall, sealing washer 1 convenient to peel off has been realized.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The oil seal ring convenient to peel off comprises a seal ring (1) of an annular structure, and is characterized in that a steel ring (2) with a U-shaped vertical section is embedded in the oil seal ring (1), a perforation (9) penetrating through the steel ring (2) is formed in the oil seal ring (1) in parallel with the axial lead, a movable rod (5) with a hollow structure is arranged in the perforation (9) in a sliding manner, a plurality of air holes (7) are formed in the movable rod (5), rubber sleeves (8) fixedly sleeved on the movable rod (5) are arranged on two sides of each air hole (7), sealing plugs (6) connected with the movable rod (5) in a screwing manner are arranged on two sides of the seal ring (1) so as to limit the movement of the movable rod (5) in the perforation (9), and a gap exists between the movable rod (5) and the inner wall of the perforation (9), the movable rod (5) is abutted against the inner wall of the through hole (9) through the outer wall of the rubber sleeve (8), and the inner side end face of the sealing ring (1) is provided with a plurality of ventilation grooves (4) communicated with the through hole (9).

2. The easy-to-peel oil sealing ring as claimed in claim 1, wherein the inner sides of the two ends of the movable rod (5) are provided with a threaded structure, the length of the movable rod (5) is equal to the thickness of the sealing ring (1), the sealing plug (6) is in a T-shaped structure, and the vertical end of the sealing plug (6) is in threaded connection with the two ends of the movable rod (5).

3. The easy-to-peel oil seal ring is characterized in that when two ends of the movable rod (5) are flush with two ends of the seal ring (1), the rubber sleeve (8) on the movable rod (5) is positioned at the position of the ventilation groove (4) to block the communication between the ventilation groove (4) and the movable rod (5).

4. The easy-to-peel oil seal ring as claimed in claim 1, wherein the perforations (9) are provided in plurality, and the perforations (9) are distributed on the seal ring (1) in an annular array, and the perforations (9) penetrate through two vertical ends of the steel ring (2) with a U-shaped cross section.

5. The oil seal ring convenient to peel off as claimed in claim 1, wherein a plurality of limiting teeth (3) are arranged at the horizontal end of the steel ring (2) with the U-shaped cross section, and the outer wall of the steel ring (2) is fixedly connected with the seal ring (1).

6. The easy-to-peel oil seal ring according to claim 1, wherein the movable rod (5) is made of steel.