CN211259198U

CN211259198U - Hydraulic cylinder capable of preventing oil leakage of oil port

Info

Publication number: CN211259198U
Application number: CN201922333419.XU
Authority: CN
Inventors: 刘勇
Original assignee: Hunan Xingke Hydraulic Co Ltd
Current assignee: Hunan Xingke Hydraulic Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-14
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a hydraulic cylinder for preventing oil leakage of an oil port, which comprises a hydraulic cylinder body, oil holes, an oil pipe and fixed blocks, wherein the oil holes are respectively arranged on the cylinder walls of the hydraulic cylinder body close to the two ends, two fixed blocks are fixed on the outer wall of the hydraulic cylinder body, and an arch-shaped connecting frame is arranged between the two fixed blocks; the welding requirement of one of the fixed blocks and the hydraulic cylinder is reduced, and the welding requirement of the other fixed block and the hydraulic cylinder is unchanged, so that the welding requirement is reduced, meanwhile, a welding seam required by leakage-proof welding is shortened, and the possibility of leakage is reduced.

Description

Hydraulic cylinder capable of preventing oil leakage of oil port

Technical Field

The utility model relates to a pneumatic cylinder structure field, concretely relates to prevent pneumatic cylinder of hydraulic fluid port oil leak.

Background

The oil hole of the existing hydraulic cylinder is arranged on a cylinder barrel of the hydraulic cylinder, then the oil hole of the hydraulic cylinder is fixed with an oil pipe for supplying oil, the existing oil pipe is generally fixed on a fixed block in a welding mode, and then the fixed block is fixed on the cylinder barrel, so that the oil in the oil pipe is introduced into the hydraulic cylinder in the mode;

the two-way hydraulic cylinder fixes two oil ports on a fixed block for convenient welding, and then welds the fixed block on the cylinder outer wall, and the welding requirement when welding is big and welding when welding like this is higher, simultaneously because the welding seam is bigger, takes place to leak like this easily, simultaneously at two fixed blocks, only one fixed block has the leakproofness requirement with the pneumatic cylinder, only has the fixity requirement between another fixed block and the pneumatic cylinder, need a new pneumatic cylinder structure to overcome foretell shortcoming for satisfying the demand of pneumatic cylinder now.

Disclosure of Invention

The utility model provides a to the not enough of above-mentioned prior art, the utility model provides a prevent pneumatic cylinder of hydraulic fluid port oil leak reduces the welding requirement of one of them fixed block and pneumatic cylinder, and the welding requirement of another fixed block and pneumatic cylinder is unchangeable, has reduced the welding requirement like this, has shortened the welding seam simultaneously, reduces the possibility of leaking, is convenient for weld between fixed block and the pneumatic cylinder simultaneously.

In order to achieve the above purpose, the utility model discloses a scheme: the utility model provides a prevent pneumatic cylinder of hydraulic fluid port oil leak, including the pneumatic cylinder body, the oilhole, oil pipe and fixed block, wherein be provided with the oilhole respectively on the cylinder wall that is close to both ends of pneumatic cylinder body, be fixed with two fixed blocks on the pneumatic cylinder body outer wall, all be provided with the interface on two fixed blocks, all open on every fixed block with the communicating through-hole of interface, wherein a fixed block and one of them oilhole position is corresponding and the interface on the fixed block is directly linked together with the oilhole through the through-hole, another fixed block is connected with oil pipe through the through-hole and the other one end of oil pipe is linked together with another oilhole, the fixed block is drawn close each other and there is the interval.

Preferably, the fixing block directly communicated with the oil hole is connected with the hydraulic cylinder body in a welding mode, the fixing block is welded with the hydraulic cylinder body to meet the requirement of sealing performance, and the other fixing block can be fixed with the hydraulic cylinder body in multiple modes.

Preferably, a groove body matched with the fixing block is arranged on the outer wall of the hydraulic cylinder body, and the groove body is located on the outer wall of the hydraulic cylinder body outside one of the oil holes.

Compared with the prior art, the utility model has the advantages of: 1. the welding requirements of one fixed block and the hydraulic cylinder are reduced, and the welding requirements of the other fixed block and the hydraulic cylinder are unchanged, so that the welding requirements are reduced, meanwhile, the welding seam required by leakage-proof welding is shortened, and the possibility of leakage is reduced; 2. the fixing block is convenient to fix on the cylinder barrel; 3. increase the laminating area of fixed block and cylinder outer wall, can be limited like this and prevent leaking.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a top view of the present invention.

The hydraulic cylinder comprises a hydraulic cylinder body 1, a hydraulic cylinder body 2, an oil hole 3, an oil pipe 4, a fixing block 4.1, a through hole 4.2, an arch-shaped connecting frame 5 and a groove body.

Detailed Description

The present invention will now be further elucidated with reference to the accompanying drawings.

As shown in fig. 1-2, a hydraulic cylinder for preventing oil leakage from an oil port comprises a hydraulic cylinder body 1, oil holes 2, an oil pipe 2 and fixed blocks 4, wherein the oil holes 2 are respectively arranged on the cylinder walls of the hydraulic cylinder body 1 near two ends (the oil holes penetrate through the outer wall of the hydraulic cylinder body 1), two rectangular fixed blocks 4 are fixed on the outer wall of the hydraulic cylinder body 1 in a welding manner, interfaces are fixed on the two fixed blocks 4 in a welding manner, a through hole 4.1 communicated with the interfaces is arranged on each fixed block 4, wherein the fixed block 4 on the right side is positioned right above the oil hole 2 on the right side of the hydraulic cylinder body 1, the interfaces on the fixed blocks 4 are directly communicated with the oil hole 2 through the through hole 4.1, the fixed block 4 on the left side is fixed with the oil pipe 2 in a welding manner, the other end of the oil pipe 2 is communicated with the other oil hole 2, the end of the oil pipe 2 welded with, the two fixed blocks 4 are close to each other, and an interval exists between the two fixed blocks 4 (mainly, the two fixed blocks are separated, compared with the prior art that the two fixed blocks are combined together, the scheme has small welding seam required by leak-proof welding, the left fixed block only has fixed welding requirement but does not have leak-proof welding requirement), so the welding seam required by leak-proof welding is small, the oil port is not easy to leak, an arch connecting frame 4.2 is fixed between the two fixed blocks 4 in a welding mode, so the two fixed blocks 4 are fixed together through the arch connecting frame 4.2, the fixed blocks 4 are convenient to be fixed on the hydraulic cylinder body 1 during welding, the two fixed blocks 4 are connected together through the arch connecting frame 4.2, so the fixed blocks 4 can hold the left fixed block 4 by hands during welding, the right fixed block 4 is pressed on the hydraulic cylinder body 1, guarantee right side fixed block 1 and the inseparable laminating of pneumatic cylinder body 1 like this, then weld through the welded mode, can reduce the clearance between right side fixed block 4 and the pneumatic cylinder body 1 like this, effectual leakage that prevents like this, and traditional fixed block is one, when carrying out the welding, can't lead to the fixed block rapid heating up when pressing (the welded through holding), fixed 4 back that finishes on the fixed block on right side, left fixed block is fixed on pneumatic cylinder body 1 naturally, for preventing that left side fixed block 4 is not hard up, left fixed block 4 spot welding can be accomplished fixedly under several, thus.

The through hole 4.1 is connected for the welded mode between the fixed block 4 that directly communicates with the oilhole 2 and the hydraulic cylinder body 1 and there is the leakproofness requirement fixed block 4 and the welding of hydraulic cylinder body 1, can fix through multiple mode between another fixed block 4 and the hydraulic cylinder body 1, has reduced the welding seam of the welding requirement of preventing leaking like this, reduces the possibility that hydraulic oil leaked.

Open on 1 outer wall of pneumatic cylinder body have with fixed block 4 matched with cell body 5, cell body 5 is located the 1 outer wall of pneumatic cylinder body in the 2 outsides of an oilhole on right side, be convenient for like this fixed block 4 and pneumatic cylinder body 1 fix a position, need not to counterpoint when carrying out the welding like this simultaneously, reduce welded time, fixed block 4 and pneumatic cylinder body 1's area of contact has been increased simultaneously, reduce the leakage of hydraulic oil probably, area of contact is great like this, can effectually prevent the leakage of hydraulic oil like this.

Claims

1. The utility model provides a prevent pneumatic cylinder of hydraulic fluid port oil leak, including the pneumatic cylinder body, the oilhole, oil pipe and fixed block, wherein be provided with the oilhole respectively on the cylinder wall that is close to both ends of pneumatic cylinder body, be fixed with two fixed blocks on the pneumatic cylinder body outer wall, all be provided with the interface on two fixed blocks, a through-hole that communicates with the interface has all been opened on every fixed block, wherein a fixed block and one of them oilhole position are corresponding and the interface on the fixed block is directly linked together with the oilhole through the through-hole, another fixed block is connected with oil pipe through the through-hole and the other one end of oil pipe is linked together with another oilhole, the fixed block is drawn close each other and there is the interval between.

2. The hydraulic cylinder capable of preventing the oil from leaking from the oil port according to claim 1, wherein the fixing block directly communicated with the oil hole is connected with the cylinder body of the hydraulic cylinder in a welding manner, the welding of the fixing block and the cylinder body of the hydraulic cylinder has a sealing requirement, and the other fixing block and the cylinder body of the hydraulic cylinder can be fixed in various manners.

3. The hydraulic cylinder capable of preventing the oil from leaking from the oil port according to claim 2, wherein a groove body matched with the fixing block is arranged on the outer wall of the cylinder body of the hydraulic cylinder, and the groove body is positioned on the outer wall of the cylinder body of the hydraulic cylinder outside one of the oil holes.