CN215672958U

CN215672958U - Thin cylinder

Info

Publication number: CN215672958U
Application number: CN202121272146.3U
Authority: CN
Inventors: 周超波
Original assignee: Yueqing Boke Pneumatic Co ltd
Current assignee: Yueqing Boke Pneumatic Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-01-28
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses a thin cylinder, which comprises a cylinder body, wherein a wear-resistant coating is arranged on the inner wall of the cylinder body, the right port of the cylinder body is connected with a first cylinder cover through four bolts, the inner ring of the first cylinder cover is connected with a piston rod in a sliding manner, the right end of the inner ring of the first cylinder cover is fixedly connected with a dustproof ring, the middle part of the inner ring of the first cylinder cover is fixedly connected with a support ring, the left end of the inner ring of the first cylinder cover is fixedly connected with a second seal ring, and the left port of the cylinder body is connected with a second cylinder cover through four bolts. According to the utility model, the square column is fixed on the second cylinder cover in a static manner, the corresponding hole in the piston rod is also square, the effect of preventing the piston ring and the piston rod from rotating can be achieved by means of the acting force and the reacting force between the square column and the piston rod, when the piston rod moves, the piston rod and the square column are prevented from being adsorbed together due to air pressure because the square column is in a hollow state, and further the acting efficiency of the cylinder is influenced, so that the cylinder is worthy of great popularization.

Description

Thin cylinder

Technical Field

The utility model relates to the technical field of cylinders, in particular to a thin cylinder.

Background

Thin cylinders are cylindrical metal parts in which a piston is guided to perform linear reciprocating motion, working media convert thermal energy into mechanical energy through expansion in an engine cylinder, gas is compressed by the piston in a compressor cylinder to increase pressure, and housings of turbines, rotary piston engines and the like are also commonly referred to as cylinders.

Chinese patent grant publication No. CN 206449046U's utility model shows a patent named a slim cylinder, and this patent is the better characteristic advantage that has embodied slim cylinder, but the structure is too complicated, to high frequency, fast-speed service environment, is difficult to guarantee structural life, and does not have the mechanism of preventing the piston rotation, is difficult to deal with some service environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a thin cylinder.

In order to achieve the purpose, the utility model adopts the following technical scheme: the thin cylinder comprises a cylinder body, wherein a wear-resistant coating is arranged on the inner wall of the cylinder body, the right end port of the cylinder body is connected with a first cylinder cover through four bolts, the inner ring of the first cylinder cover is connected with a piston rod in a sliding manner, the right end of the inner ring of the first cylinder cover is fixedly connected with a dustproof ring, the middle part of the inner ring of the first cylinder cover is fixedly connected with a support ring, the left end of the inner ring of the first cylinder cover is fixedly connected with a second sealing ring, the left end port of the cylinder body is connected with a second cylinder cover through four bolts, the middle part of the right end of the second cylinder cover is fixedly connected with a square column, the right end of the square column is connected inside the left end of the piston rod in a sliding manner, the left end of the piston rod is fixedly connected with a piston ring, the middle part of the outer ring is fixedly connected with a guide ring, the edges of the left end and the right end of the piston ring are fixedly connected with a fourth sealing ring, and the upper side and the lower side of the left end of the piston ring are connected with shock absorption columns in a sliding manner, the equal fixedly connected with spring of one end that the shock attenuation post is close to the piston ring, the spring other end is fixed connection respectively in the hole that the piston ring corresponds the position.

As a further description of the above technical solution:

the wear-resistant coating is made of chromium.

As a further description of the above technical solution:

the left and right sides on cylinder body top all fixedly connected with air inlet.

As a further description of the above technical solution:

the cylinder body right port fixedly connected with first sealing washer, cylinder body left port fixedly connected with third sealing washer.

As a further description of the above technical solution:

the inner part of the dustproof ring is slidably connected to the outside of the piston rod.

As a further description of the above technical solution:

the inner part of the support ring is connected with the outer part of the piston rod in a sliding way.

As a further description of the above technical solution:

the inner part of the second sealing ring is connected with the outer part of the piston rod in a sliding way.

As a further description of the above technical solution:

the equal fixedly connected with first crashproof pad in upper and lower both sides of first cylinder cap left end, the equal fixedly connected with second crashproof pad in upper and lower both sides of second cylinder cap right-hand member.

The utility model has the following beneficial effects:

1. according to the utility model, the square column is fixed on the second cylinder cover in a static manner, the corresponding hole in the piston rod is also square, the effect of preventing the piston ring and the piston rod from rotating can be achieved by means of the acting force and the reacting force between the square column and the piston rod, and when the piston rod moves, the piston rod and the square column are prevented from being adsorbed together due to air pressure and further affecting the acting efficiency of the cylinder due to the fact that the square column is in a hollow state.

2. According to the utility model, when high-pressure gas is alternately injected into the two gas inlets, the piston ring does reciprocating motion due to the gas pressure difference, when the piston ring collides with the first cylinder cover or the second cylinder cover, the shock absorption column and the spring can absorb part of kinetic energy of the piston ring, and the first anti-collision pad and the second anti-collision pad prevent the piston ring body from directly colliding with the inner wall of the first cylinder cover or the second cylinder cover, so that the shock absorption and anti-collision effects are achieved, and the piston ring is worthy of great popularization.

Drawings

FIG. 1 is a front sectional view of a thin cylinder according to the present invention;

FIG. 2 is a schematic perspective view of a square column structure of the thin cylinder according to the present invention;

fig. 3 is a right side view of a thin cylinder according to the present invention;

fig. 4 is a left side view of the thin cylinder according to the present invention.

Illustration of the drawings:

1. a cylinder body; 2. a wear-resistant coating; 3. an air inlet; 4. a first cylinder head; 5. a first seal ring; 6. a dust ring; 7. a support ring; 8. a second seal ring; 9. a first crash pad; 10. a second cylinder head; 11. a third seal ring; 12. a second crash pad; 13. a square column; 14. a piston rod; 15. a piston ring; 16. a fourth seal ring; 17. a guide ring; 18. a spring; 19. a shock-absorbing post; 20. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed 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, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: the thin cylinder comprises a cylinder body 1, wherein a wear-resistant coating 2 is arranged on the inner wall of the cylinder body 1, a right port of the cylinder body 1 is connected with a first cylinder cover 4 through four bolts 20, a piston rod 14 is connected with an inner ring of the first cylinder cover 4 in a sliding manner, a dust ring 6 is fixedly connected with a right end of the inner ring of the first cylinder cover 4, a support ring 7 is fixedly connected with the middle part of the inner ring of the first cylinder cover 4, a left end of the inner ring of the first cylinder cover 4 is fixedly connected with a second sealing ring 8, a left port of the cylinder body 1 is connected with a second cylinder cover 10 through four bolts 20, a square column 13 is fixedly connected with the middle part of the right end of the second cylinder cover 10, the square column 13 is in a hollow state, the piston rod 14 and the square column 13 are prevented from being adsorbed together due to air pressure, the acting efficiency of the cylinder is further influenced, the right end of the square column 13 is connected inside the left end of the piston rod 14 in a sliding manner, a piston ring 15 is fixedly connected with a guide ring 17 at the middle part of the outer ring, the equal fixedly connected with fourth sealing washer 16 in edge at both ends about piston ring 15, the equal sliding connection in upper and lower both sides at both ends has shock-absorbing column 18 about piston ring 15, shock-absorbing column 18 is close to the equal fixedly connected with spring 19 of one end of piston ring 15, the spring 19 other end is fixed connection respectively in the hole of piston ring 15 corresponding position, when piston ring 15 collides first cylinder cap 4 or second cylinder cap 10, spring 18 can absorb piston ring 15's partial kinetic energy when being compressed by shock-absorbing column 19, weaken the dynamics of striking.

The wear-resistant coating 2 is made of chromium, the chromium coating layer has wear resistance, lubricated effect, the equal fixedly connected with air inlet 3 in the left and right sides on 1 top of cylinder body, the first sealing washer 5 of 1 right-hand member mouth fixedly connected with of cylinder body, 1 left-hand member mouth fixedly connected with third sealing washer 11 of cylinder body, the inside sliding connection of dust ring 6 is outside at piston rod 14, inside dust entering cylinder can be prevented to dust ring 6, the inside sliding connection of support ring 7 is outside at piston rod 14, the inside sliding connection of second sealing washer 8 is outside at piston rod 14, the first crashproof pad 9 of the equal fixedly connected with in upper and lower both sides of the 4 left ends of first cylinder cap, the equal fixedly connected with second crashproof pad 12 in upper and lower both sides of the 10 right-hand members of second cylinder cap, first crashproof pad 9 and second crashproof pad 12 then avoid the direct inner wall that strikes first cylinder cap 4 or second cylinder cap 10 of piston ring 15 ring body, the damage to inner structure when reducing the cylinder function.

The working principle is as follows: the square column 13 is fixed on the second cylinder cover 10, and is in a static state relative to the cylinder, the corresponding hole inside the piston rod 14 is also square, when the piston rod 14 moves, the piston ring 15 and the piston rod 14 can be prevented from rotating by depending on the acting force and the reacting force between the square column 13 and the piston rod 14, because the square column 13 is in a hollow state, the piston rod 14 and the square column 13 are prevented from being adsorbed together due to air pressure, and further the acting efficiency of the cylinder is influenced, when the two air inlets 3 are alternately filled with high-pressure gas, the piston ring 15 reciprocates due to the air pressure difference, when the piston ring 15 collides with the first cylinder cover 4 or the second cylinder cover 10, the spring 18 absorbs part of kinetic energy of the piston ring 15 when compressed by the shock absorption column 19, the force of the collision is weakened, the first anti-collision pad 9 and the second anti-collision pad 12 prevent the piston ring 15 from directly colliding with the inner wall of the first cylinder cover 4 or the second cylinder cover 10, the damage to the internal structure when the cylinder operates is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. Thin cylinder, including cylinder body (1), its characterized in that: the inner wall of the cylinder body (1) is provided with a wear-resistant coating (2), the right end opening of the cylinder body (1) is connected with a first cylinder cover (4) through four bolts (20), the inner ring of the first cylinder cover (4) is connected with a piston rod (14) in a sliding manner, the right end opening of the inner ring of the first cylinder cover (4) is fixedly connected with a dust ring (6), the middle part of the inner ring of the first cylinder cover (4) is fixedly connected with a support ring (7), the left end of the inner ring of the first cylinder cover (4) is fixedly connected with a second seal ring (8), the left end opening of the cylinder body (1) is connected with a second cylinder cover (10) through four bolts (20), the middle part of the right end of the second cylinder cover (10) is fixedly connected with a square column (13), the right end of the square column (13) is connected inside the left end of the piston rod (14) in a sliding manner, the left end of the piston rod (14) is fixedly connected with a piston ring (15), and the middle part of the outer ring (15) is fixedly connected with a guide ring (17), equal fixedly connected with fourth sealing washer (16) in the edge at both ends about piston ring (15), the equal sliding connection in upper and lower both sides at both ends has shock attenuation post (18) about piston ring (15), the equal fixedly connected with spring (19) of one end that shock attenuation post (18) are close to piston ring (15), spring (19) other end difference fixed connection is in the hole that piston ring (15) correspond the position.

2. The thin cylinder as claimed in claim 1, wherein: the wear-resistant coating (2) is made of chromium.

3. The thin cylinder as claimed in claim 1, wherein: the left side and the right side of the top end of the cylinder body (1) are fixedly connected with air inlets (3).

4. The thin cylinder as claimed in claim 1, wherein: the cylinder body (1) right-hand member mouth fixedly connected with first sealing washer (5), cylinder body (1) left-hand member mouth fixedly connected with third sealing washer (11).

5. The thin cylinder as claimed in claim 1, wherein: the interior of the dustproof ring (6) is connected with the exterior of the piston rod (14) in a sliding manner.

6. The thin cylinder as claimed in claim 1, wherein: the supporting ring (7) is connected outside the piston rod (14) in a sliding mode inside.

7. The thin cylinder as claimed in claim 1, wherein: the inner part of the second sealing ring (8) is connected with the outer part of the piston rod (14) in a sliding way.

8. The thin cylinder as claimed in claim 1, wherein: the upper and lower both sides of first cylinder cap (4) left end equal fixedly connected with first crashproof pad (9), the upper and lower both sides equal fixedly connected with second crashproof pad (12) of second cylinder cap (10) right-hand member.