CN219013355U

CN219013355U - High performance pneumatic seal

Info

Publication number: CN219013355U
Application number: CN202223563473.1U
Authority: CN
Inventors: 仲建雨
Original assignee: Weiwan Technology Co ltd
Current assignee: Weiwan Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-12
Anticipated expiration: 2032-12-30

Abstract

The utility model belongs to the technical field of pneumatic sealing, in particular to a high-performance pneumatic sealing element, which comprises a cylinder body, wherein one end of the cylinder body is fixed with a side cover, a piston in the cylinder body moves to form an air rod, an installation shell is connected with the inside of the side cover through threads, and a first sealing ring and a second sealing ring are fixed on the inner wall of the installation shell. According to the utility model, the mounting shell is in threaded connection with the side cover, the mounting shell can be initially fixed, the setting of the limiting mechanism is matched, the mounting shell is limited again, so that the first sealing ring and the second sealing ring can be fixed, displacement and sliding of the first sealing ring and the second sealing ring can be avoided when the first sealing ring and the second sealing ring are used through double fixing, the mounting shell, the first sealing ring and the second sealing ring can be detached through the limiting mechanism, the replacement is convenient, the corrosion resistance and the wear resistance of the first sealing ring and the second sealing ring are enhanced through the anti-corrosion layer and the wear-resistant layer, and the probability of damage of the first sealing ring and the second sealing ring after long-time friction is reduced.

Description

High performance pneumatic seal

Technical Field

The utility model relates to the technical field of pneumatic sealing, in particular to a high-performance pneumatic sealing element.

Background

When the pneumatic transmission system is used, a certain gap exists between the cylinder body and the pneumatic rod because the pneumatic rod is required to move, and the gap is required to be sealed by using a high-performance pneumatic sealing piece to prevent medium from flowing out;

however, the sealing ring is directly placed in the clamping groove for use no matter the sealing ring is a round sealing ring or a square sealing ring, which also results in poor fixing property of the sealing ring, and displacement and sliding are easy to occur in the use process, so that the sealing member is damaged by friction, and therefore, improvement is needed.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the high-performance pneumatic sealing element, and solves the problems that in the prior art, the sealing ring is poor in fixity, and displacement and sliding are easy to occur in the use process, so that the sealing element is damaged by friction.

(II) technical scheme

The utility model adopts the following technical scheme for realizing the purposes:

the utility model provides a high performance pneumatic seal spare, includes the cylinder body, the one end of cylinder body is fixed with the side cap, piston motion has the gas pole in the cylinder body, side cap internal thread connection has the installation shell, the inner wall of installation shell is fixed with first sealing washer and second sealing washer, first sealing washer includes the perfluororubber circle, the second sealing washer includes the tetrafluoro rubber circle, the installation shell passes through stop gear and installs on the side cap.

Further, the limiting mechanism comprises two connecting blocks symmetrically fixed on the outer surface of the mounting shell, the connecting blocks and the side covers are provided with mounting holes in a matched mode, and screws are connected with the mounting holes in a threaded mode.

Further, a thread groove is formed in the inner wall of the side cover, and the mounting shell is in threaded connection with the thread groove.

Further, the outer surfaces of the perfluororubber ring and the tetrapropylfluororubber ring are sequentially coated and fixed with a wear-resistant layer and an anti-corrosion layer.

Further, the anticorrosive layer is a modified epoxy resin coating.

Further, the wear-resistant layer is an Al2O3 nanoparticle reinforced chromium-free Dacromet coating.

(III) beneficial effects

Compared with the prior art, the utility model provides the high-performance pneumatic sealing piece, which has the following beneficial effects:

according to the utility model, the mounting shell can be initially fixed through threaded connection of the mounting shell and the side cover, the mounting shell is limited again by matching with the setting of the limiting mechanism, so that the first sealing ring and the second sealing ring can be fixed, displacement and sliding of the first sealing ring and the second sealing ring can be avoided when the mounting shell is used through double fixing, the mounting shell, the first sealing ring and the second sealing ring can be detached through the limiting mechanism, the mounting shell is convenient to replace, the corrosion resistance and the wear resistance of the first sealing ring and the second sealing ring are enhanced through the corrosion resistance layer and the wear resistance layer, the probability of damage of the first sealing ring and the second sealing ring after being rubbed for a long time is reduced, and the service lives of the first sealing ring and the second sealing ring are prolonged.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a side view of the cylinder structure of the present utility model;

FIG. 3 is a schematic view of the mounting shell structure of the present utility model;

FIG. 4 is a schematic view of the structure of the gas lever of the present utility model;

FIG. 5 is a schematic view of a first seal ring according to the present utility model;

fig. 6 is a schematic structural diagram of a second seal ring according to the present utility model.

In the figure: 1. a cylinder; 2. a side cover; 3. an air bar; 4. a mounting shell; 5. a first seal ring; 501. a perfluororubber ring; 503. an anti-corrosion layer; 502. a wear-resistant layer; 6. a second seal ring; 601. a tetraprop fluororubber ring; 7. a limiting mechanism; 701. a connecting block; 702. a mounting hole; 703. a screw; 8. a thread groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the high-performance pneumatic sealing member according to one embodiment of the present utility model includes a cylinder 1, one end of the cylinder 1 is fixed with a side cover 2, a piston moves in the cylinder 1 and has an air rod 3, an installation shell 4 is connected with an inner thread of the side cover 2, a first sealing ring 5 and a second sealing ring 6 are fixed on an inner wall of the installation shell 4, the first sealing ring 5 includes a perfluororubber ring 501, the second sealing ring 6 includes a tetrapropylfluororubber ring 601, the outer surfaces of the perfluororubber ring 501 and the tetrapropylfluororubber ring 601 are sequentially coated and fixed with a wear-resisting layer 502 and a corrosion-resisting layer 503, and the installation shell 4 is installed on the side cover 2 through a limiting mechanism 7;

it can be seen that, when using, screw in the side cap 2 with installation shell 4, initially fixed first sealing washer 5 and second sealing washer 6, make first sealing washer 5 and second sealing washer 6 closely laminate with gas pole 3, through the double seal of first sealing washer 5 and second sealing washer 6, make the leakproofness better, first sealing washer 5 all adopts the same material to make with second sealing washer 6, after installation shell 4 screw in, carry out spacingly to installation shell 4 through stop gear 7 again, can avoid first sealing washer 5 and second sealing washer 6 to take place displacement and slip when using, reduce the friction that first sealing washer 5 and second sealing washer 6 received.

As shown in fig. 2 and fig. 3, in some embodiments, the limiting mechanism 7 includes two connection blocks 701 symmetrically fixed on the outer surface of the installation shell 4, the connection blocks 701 and the side cover 2 are provided with a mounting hole 702 adapted to each other, and a screw 703 is connected to the mounting hole 702 in a threaded manner; when the mounting shell 4 is required to be limited, a user holds the two connecting blocks 701 to rotate, screws the mounting shell 4 into the side cover 2, after screwing, the mounting holes 702 on the connecting blocks 701 are aligned with the mounting holes 702 on the side cover 2, screws 703 are screwed into the mounting holes 702, the mounting shell 4 can be fixed on the side cover 2 again, and the mounting of the first sealing ring 5 and the second sealing ring 6 is completed, so that the fixity is enhanced.

As shown in fig. 2, in some embodiments, the inner wall of the side cover 2 is provided with a thread groove 8, and the mounting shell 4 is in threaded connection with the thread groove 8; through the setting of screw groove 8, make installation shell 4 can screw in, through installation shell 4 and screw groove 8 threaded connection, can preliminarily install installation shell 4, can make and seal between installation shell 4 and the side cap 2 moreover.

As shown in fig. 5 and 6, in some embodiments, the anti-corrosion layer 503 is a modified epoxy coating; through the setting of anticorrosive coating 503, the corrosion resistance of reinforcing first sealing washer 5 and second sealing washer 6, the life of extension first sealing washer 5 and second sealing washer 6.

As shown in fig. 5 and 6, in some embodiments, the wear layer 502 is an Al2O3 nanoparticle-reinforced chrome-free dacromet coating; through the setting of wearing layer 502, the wear resistance of reinforcing first sealing washer 5 and second sealing washer 6 reduces the probability that first sealing washer 5 and second sealing washer 6 take place to damage after receiving the friction for a long time.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. High performance pneumatic seal spare, including cylinder body (1), its characterized in that: one end of cylinder body (1) is fixed with side cap (2), piston motion has gas pole (3) in cylinder body (1), side cap (2) internal thread connection has installation shell (4), the inner wall of installation shell (4) is fixed with first sealing washer (5) and second sealing washer (6), first sealing washer (5) include perfluororubber circle (501), second sealing washer (6) include tetrafluoro rubber circle (601), installation shell (4) are installed on side cap (2) through stop gear (7).

2. The high performance pneumatic seal of claim 1, wherein: the limiting mechanism (7) comprises two connecting blocks (701) symmetrically fixed on the outer surface of the mounting shell (4), mounting holes (702) matched with the connecting blocks (701) and the side covers (2) are formed in the side covers, and screws (703) are connected with the mounting holes (702) in an internal thread mode.

3. The high performance pneumatic seal of claim 1, wherein: the inner wall of the side cover (2) is provided with a thread groove (8), and the installation shell (4) is in threaded connection with the thread groove (8).

4. The high performance pneumatic seal of claim 1, wherein: the outer surfaces of the perfluororubber ring (501) and the tetrapropylfluororubber ring (601) are sequentially coated and fixed with a wear-resistant layer (502) and an anti-corrosion layer (503).

5. The high performance pneumatic seal of claim 4, wherein: the anticorrosive layer (503) is a modified epoxy resin coating.

6. The high performance pneumatic seal of claim 4, wherein: the wear-resistant layer (502) is an Al2O3 nanoparticle reinforced chromium-free Dacromet coating.