CN108180184B

CN108180184B - Dust protected cylinder

Info

Publication number: CN108180184B
Application number: CN201711423246.XA
Authority: CN
Inventors: 梅春燕
Original assignee: Chongqing Puyong Technology Development Co Ltd
Current assignee: Chongqing Puyong Technology Development Co Ltd
Priority date: 2017-12-25
Filing date: 2017-12-25
Publication date: 2019-12-13
Anticipated expiration: 2037-12-25
Also published as: CN108180184A

Abstract

the invention relates to the technical field of cylinders, in particular to a dustproof cylinder which comprises a cylinder body, wherein a sealing ring is arranged above the cylinder body, a base is arranged at the bottom of the cylinder body, a piston rod is vertically arranged in the cylinder body, a dust removal mechanism is arranged on one side of the cylinder body, the dustproof cylinder prevents most dust from entering the cylinder body through the arranged sealing ring, a movable plate is arranged and can be driven to move back and forth through a slide bar and a slide groove under the action of air flow, the position of the movable plate after moving is ensured through an arranged limiting block, and through an arranged dust removal pipe and a circular ring, when an upper air inlet pipe is used for air inlet, the air flow at the bottom of the piston can be divided into a part to enter the dust removal pipe, so that the dust removal on the surface of the piston rod is realized through the generated air flow through an air outlet, the dustproof cylinder has a simple structure, greatly prolongs the service life and is suitable for popularization.

Description

Dust protected cylinder

Technical Field

The invention relates to the technical field of cylinders, in particular to a dustproof cylinder.

Background

The SMC cylinder guides a cylindrical metal part in which a piston linearly reciprocates. The working medium converts heat energy into mechanical energy through expansion in an engine cylinder; the gas is compressed by a piston in a compressor cylinder to increase pressure. The housing of a turbine, a rotary piston engine or the like is often also referred to as a "cylinder". The application field of the cylinder is as follows: printing (tension control), semiconductor (spot welder, chip grind), automated control, robot etc. at SMC cylinder work's in-process, because the dust that diffuses in the air, at piston rod back and forth movement's in-process, inside powdery material such as raise dust can get into the cylinder, the powder gets into and can cause the wearing and tearing of cylinder sealing washer in the cylinder protecgulum, further leads to the cylinder to seal badly, and the cylinder body leaks gas, and atmospheric pressure is not enough, closes a great deal of problems such as not tight. When the problem occurs, the air cylinder needs to be frequently disassembled, the sealing ring in the front cover of the air cylinder needs to be replaced, and the workload is increased.

Disclosure of Invention

The invention aims to provide a dustproof cylinder, which aims to solve the problems that dust is easy to enter the cylinder when the cylinder provided by the background technology works, so that a sealing ring is abraded, the cylinder is abraded, the sealing ring needs to be replaced frequently, and the like.

in order to achieve the purpose, the invention provides the following technical scheme:

A dustproof cylinder comprises a cylinder body, wherein a sealing ring is arranged above the cylinder body, a base is arranged at the bottom of the cylinder body, an upper air inlet pipe is arranged on one side of the sealing ring and penetrates through the sealing ring to be communicated with the inside of the cylinder body, a lower air inlet pipe is arranged on one side, away from the upper air inlet pipe, of the base and penetrates through the base to be communicated with the inside of the cylinder body, a piston pad is arranged at the center of the top of the base, and the piston pad is located inside the cylinder body;

A piston rod is vertically arranged in the cylinder body, penetrates through the inner wall of the sealing ring and is communicated with the outside of the cylinder body, and a piston is tightly welded at the bottom of the piston rod;

one side of cylinder body is equipped with dust removal mechanism, dust removal mechanism is including being located the ring at seal ring top, just the ring cover is located the piston rod, one side of ring is equipped with the dust removal pipe, just the one end of dust removal pipe runs through the outer wall of ring is linked together rather than inside, the dust removal pipe is kept away from the one end through connection of ring in the outer wall of intake pipe down is linked together rather than inside.

preferably, the lower air inlet pipe is located below the dust removal pipe, and a movable plate is arranged at the top of the movable plate.

Preferably, the top inner wall of lower intake pipe is equipped with the spout, the spout with draw runner sliding connection, just the both ends of spout have closely welded the stopper.

Preferably, the top of the circular ring is provided with a plurality of air outlets.

preferably, the upper surface of the lower air inlet pipe is positioned at the bottom of the dust removal pipe and is provided with a plurality of sieve holes, and the sieve holes are positioned at one half section of the dust removal pipe.

preferably, the length of the horizontal section of the movable plate is half of the length of the sliding groove.

compared with the prior art, the invention has the beneficial effects that: this dust protected SMC cylinder, through the sealing washer that sets up, it gets into inside the cylinder body to have avoided most dust, and the setting of fly leaf, under the effect of air current, drive the fly leaf and can round trip movement through draw runner and spout, through the stopper that sets up, the position after having guaranteed the fly leaf removal, and through the dust removal pipe and the ring that set up, when last intake pipe is admitting air, the air current of piston bottom can divide a part and get into the dust removal pipe, and then through the air outlet, realized the dust removal to the piston rod surface through the air current that produces, the invention is simple in structure, the effectual entering of avoiding the dust, and greatly prolonged service life is fit for promoting.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the ring structure of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

Fig. 4 is a schematic structural view of the movable plate of the present invention.

in the figure: 1. a cylinder body; 11. a seal ring; 12. a base; 13. a piston pad; 14. an upper intake pipe; 15. a lower air inlet pipe; 151. a movable plate; 1511. a slide bar; 152. a limiting block; 153. a chute; 154. screening holes; 2. a piston rod; 21. a piston; 3. a dust removal mechanism; 31. a circular ring; 311. an air outlet; 32. and a dust removal pipe.

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.

Referring to fig. 1-4, the present invention provides a technical solution:

A dustproof cylinder comprises a cylinder body 1, wherein a sealing ring 11 is arranged above the cylinder body 1, the situation that most dust enters the cylinder body 1 is avoided through the arranged sealing ring 11, a base 12 is arranged at the bottom of the cylinder body 1, an upper air inlet pipe 14 is arranged on one side of the sealing ring 11, the upper air inlet pipe 14 penetrates through the sealing ring 11 and is communicated with the interior of the cylinder body 1, a lower air inlet pipe 15 is arranged on one side, away from the upper air inlet pipe 14, of the base 12, the lower air inlet pipe 15 penetrates through the base 12 and is communicated with the interior of the cylinder body 1, a piston pad 13 is arranged in the center of the top of the base 12;

a piston rod 2 is vertically arranged in the cylinder body 1, the piston rod 2 penetrates through the inner wall of the sealing ring 11 and is communicated with the outside of the cylinder body 1, and a piston 21 is tightly welded at the bottom of the piston rod 2;

One side of the cylinder body 1 is provided with a dust removing mechanism 3, the dust removing mechanism 3 comprises a circular ring 31 positioned at the top of the sealing ring 11, the top of the circular ring 31 is provided with a plurality of air outlets 311, the circular ring 31 is sleeved on the piston rod 2, one side of the circular ring 31 is provided with a dust removing pipe 32, the lower air inlet pipe 15 is positioned below the dust removing pipe 32, the top of the movable plate 151 is provided with a slide bar 1511, the movable plate 151 is arranged under the air flow, the movable plate 15 is driven to move back and forth through the slide bar 1511 and the slide groove 153 under the action of air flow, the inner wall of the top of the lower air inlet pipe 15 is provided with a slide groove 153, the horizontal section of the movable plate 151 is half of the length of the slide groove 153, the slide groove 153 is connected with the slide bar 1511 in a sliding manner, two ends of the slide groove 153 are tightly welded with limiting blocks 152, the position of the, and the sieve hole 154 is located at the half section of the chute 153 close to the dust removing pipe 32, and one end of the dust removing pipe 32 penetrates through the outer wall of the circular ring 31 and is communicated with the inside of the circular ring, one end of the dust removing pipe 32 far away from the circular ring 31 penetrates through the outer wall of the lower air inlet pipe 15 and is communicated with the inside of the lower air inlet pipe, and through the dust removing pipe 32 and the circular ring 31 which are arranged, when the upper air inlet pipe 14 is used for air inlet, a part of air flow at the bottom of the piston 21 can be separated to enter the dust removing pipe 32, and then through the air outlet 311, the dust removal on the.

The working principle of the invention is as follows: when the dust-proof dust-removing device works, gas is introduced into the upper gas inlet pipe 14, the piston rod 2 and the piston 21 move downwards under the action of air pressure, the space below the piston 21 is extruded, the gas flows out through the lower gas inlet pipe 15, the vertical section of the movable plate 151 moves to one side of the chute 153 away from the cylinder body 1 along the direction of the gas flow under the action of the gas flow, the gas flow enters the dust-removing pipe 32 through the sieve holes 154 and then enters the circular ring 31, the gas flow is discharged from the air outlet 311, the piston rod 2 moves downwards at the moment, further, the air around the piston rod 2 moves upwards, further, the dust is prevented from entering the sealing ring 11 and the inside of the cylinder body 1, when the piston rod 2 moves upwards, the movable plate 151 can be driven to the position below the sieve holes 154 through the gas flow, further, the sealing of the sieve holes 154 is realized, the structure of the dust, greatly prolongs the service life and is suitable for popularization.

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 embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a dust protected cylinder, includes cylinder body (1), its characterized in that: a sealing ring (11) is arranged above the cylinder body (1), a base (12) is arranged at the bottom of the cylinder body (1), an upper air inlet pipe (14) is arranged on one side of the sealing ring (11), the upper air inlet pipe (14) penetrates through the sealing ring (11) and is communicated with the interior of the cylinder body (1), a lower air inlet pipe (15) is arranged on one side, away from the upper air inlet pipe (14), of the base (12), the lower air inlet pipe (15) penetrates through the base (12) and is communicated with the interior of the cylinder body (1), a piston pad (13) is arranged in the center of the top of the base (12), and the piston pad (13) is located in the cylinder body (1);

a piston rod (2) is vertically arranged in the cylinder body (1), the piston rod (2) penetrates through the inner wall of the sealing ring (11) and is communicated with the outside of the cylinder body (1), and a piston (21) is tightly welded at the bottom of the piston rod (2);

a dust removal mechanism (3) is arranged on one side of the cylinder body (1), the dust removal mechanism (3) comprises a circular ring (31) positioned at the top of the sealing ring (11), the circular ring (31) is sleeved on the piston rod (2), a dust removal pipe (32) is arranged on one side of the circular ring (31), one end of the dust removal pipe (32) penetrates through the outer wall of the circular ring (31) and is communicated with the interior of the circular ring, and one end, far away from the circular ring (31), of the dust removal pipe (32) penetrates through the outer wall of the lower air inlet pipe (15) and is communicated with the interior of the lower air inlet pipe;

The lower air inlet pipe (15) is located below the dust removal pipe (32), a movable plate (151) is arranged below the dust removal pipe, and a slide bar (1511) is arranged at the top of the movable plate (151).

2. The dust protected cylinder of claim 1, wherein: the top inner wall of lower intake pipe (15) is equipped with spout (153), spout (153) with draw runner (1511) sliding connection, just the both ends close weld of spout (153) has stopper (152).

3. The dust protected cylinder of claim 1, wherein: the top of the circular ring (31) is provided with a plurality of air outlets (311).

4. The dust protected cylinder of claim 2, wherein: the upper surface of the lower air inlet pipe (15) is positioned at the bottom of the dust removing pipe (32) and is provided with a plurality of sieve holes (154), and the sieve holes (154) are positioned at one half section of the dust removing pipe (32).

5. The dust protected cylinder of claim 2, wherein: the length of the horizontal section of the movable plate (151) is one half of the length of the sliding groove (153).