CN208900453U - A kind of oil cylinder that sealing effect is good - Google Patents

A kind of oil cylinder that sealing effect is good Download PDF

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Publication number
CN208900453U
CN208900453U CN201821385054.4U CN201821385054U CN208900453U CN 208900453 U CN208900453 U CN 208900453U CN 201821385054 U CN201821385054 U CN 201821385054U CN 208900453 U CN208900453 U CN 208900453U
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CN
China
Prior art keywords
cylinder
pipe fitting
tube plug
cylinder cap
cylinder body
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Application number
CN201821385054.4U
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Chinese (zh)
Inventor
杨哲
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HUANGSHI ZHONGTIAN MACHINERY MANUFACTURING Co Ltd
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HUANGSHI ZHONGTIAN MACHINERY MANUFACTURING Co Ltd
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Priority to CN201821385054.4U priority Critical patent/CN208900453U/en
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Publication of CN208900453U publication Critical patent/CN208900453U/en
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Abstract

The utility model relates to oil cylinder technical fields, the good oil cylinder of especially a kind of sealing effect, including cylinder body, the bottom end of the cylinder body is fixedly installed with cylinder bottom, the top of the cylinder body is equipped with cylinder cap by multiple first lock-screws, the upper surface that the matching internal of the cylinder body is equipped with piston described in piston is equipped with piston rod, one end of piston rod runs through cylinder cap and extends to the top of cylinder cap, the upper surface of the cylinder cap, which is run through, is equipped with multiple telescoping mechanisms, tube plug is respectively connected between multiple telescoping mechanisms, tube plug Matching installation is in the inside of cylinder body, so that tube plug is slided along the inner wall of cylinder body, the telescoping mechanism includes the second pipe fitting and the through-hole for being provided with cylinder cap upper surface.The utility model structure is simple, convenient to use, improves the sealing effect of oil cylinder, and the grease stain being also convenient in tube plug and telescoping mechanism carries out cleaning and maintenance.

Description

A kind of oil cylinder that sealing effect is good
Technical field
The utility model relates to the good oil cylinders of oil cylinder technical field more particularly to a kind of sealing effect.
Background technique
Compressing cylinder is the hydraulic actuator that hydraulic energy is changed into mechanical energy, does straight reciprocating motion, structure letter Single, reliable operation when realizing reciprocating motion, can remove deceleration device from, and do not have drive gap, movement is steady, therefore each It is used widely in the mechanical hydraulic system of kind, the piston of compressing cylinder ceaselessly moves back and forth during the work time, only It is realized by the way that sealing ring and inner wall of cylinder are arranged on piston and is sealed, band dynamic seal ring moves together when piston motion, makes to seal Circle and inner wall of cylinder continuous frictional repeatedly, after long-time service, easily cause ring wear, poor sealing performance.
Utility model content
Purpose of the utility model is to solve piston upper seal frictional dissipation existing in the prior art cause it is close The disadvantage of sealing property difference, and the oil cylinder that a kind of sealing effect of proposition is good.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of oil cylinder that sealing effect is good, including cylinder body are designed, the bottom end of the cylinder body is fixedly installed with cylinder bottom, the cylinder The top of body is equipped with cylinder cap by multiple first lock-screws, and the matching internal of the cylinder body is equipped with piston described in piston Upper surface is equipped with piston rod, and one end of piston rod runs through cylinder cap and extends to the top of cylinder cap, and the upper surface of the cylinder cap is passed through Be equipped with multiple telescoping mechanisms, tube plug be respectively connected between multiple telescoping mechanisms, tube plug Matching installation in the inside of cylinder body so that Tube plug is slided along the inner wall of cylinder body, and the telescoping mechanism includes the second pipe fitting and the through-hole for being provided with cylinder cap upper surface, described Second pipe fitting is mounted on the upper surface of cylinder cap and corresponding with the position of through-hole, and the outside of second pipe fitting is equipped with multiple fixations Plate, fixed plate are connect by the second lock-screw with cylinder cap, and the inside top surface of second pipe fitting is equipped with telescopic rod, described to stretch One end of contracting bar passes through through-hole and is mounted on the upper surface of tube plug, and tube plug is socketed in the side of piston rod, so that tube plug is along work The side of stopper rod is slided, and is socketed with spring on the telescopic rod, the both ends of spring respectively with the inside top surface and cylinder of the second pipe fitting The upper surface of plug connects.
Preferably, the upper and lower ends of the cylinder body offer the first oilhole and the second oilhole respectively.
Preferably, the bottom of second pipe fitting is bonded with rubber seal, the bottom surface of rubber seal and cylinder cap it is upper Surface contact.
Preferably, the telescopic rod includes the first pipe fitting, and one end of the first pipe fitting is mounted on the inside top surface of the second pipe fitting, The other end of first pipe fitting is plugged with mounting rod, so that mounting rod is slided along the inner wall of the first pipe fitting, mounting rod is separate One end of first pipe fitting is mounted on the upper surface of tube plug, and the spring is socketed on the first pipe fitting and mounting rod.
Preferably, the telescoping mechanism at least provided with two and is symmetrically arranged amongst the two sides of piston rod.
The utility model proposes a kind of good oil cylinder of sealing effect, beneficial effect is: by the way that telescopic rod and bullet is added Spring, relative to sealing ring as piston synchronous moves, reduces the movement of tube plug for improving the stability of tube plug present position Stroke, so that the sealing effect of oil cylinder improves, extends the service life of oil cylinder, passes through to reduce the frictional dissipation of tube plug The first lock-screw and the second lock-screw is added, convenient for the disassembly of cylinder cap and the second pipe fitting, to conveniently for tube plug and stretch Grease stain in contracting mechanism is cleared up, and is conveniently maintained.The utility model structure is simple, convenient to use, not only makes The sealing effect of oil cylinder improves, and the grease stain being also convenient in tube plug and telescoping mechanism carries out cleaning and maintenance.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of good oil cylinder of sealing effect main sectional view;
Fig. 2 be the utility model proposes a kind of good oil cylinder of sealing effect top view;
Fig. 3 be the utility model proposes a kind of good oil cylinder of sealing effect A at enlarged drawing.
In figure: cylinder body 1, spring 2, mounting rod 3, cylinder cap 4, the first pipe fitting 5, the second pipe fitting 6, cylinder bottom 7, the first lock-screw 8, the first oilhole 9, tube plug 10, piston rod 11, piston 12, the second oilhole 13, rubber seal 14, fixed plate 15, second are locked Screw 16, through-hole 17.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model It clearly and completely retouches, it is clear that the embodiment retouched is only the utility model a part of the embodiment, instead of all the embodiments.
Referring to Fig.1-3, the good oil cylinder of a kind of sealing effect, including cylinder body 1, the bottom end of cylinder body 1 are fixedly installed with cylinder bottom 7, The top of cylinder body 1 is equipped with cylinder cap 4 by multiple first lock-screws 8, and the matching internal of cylinder body 1 is equipped with piston 12, piston 12 upper surface is equipped with piston rod 11, and one end of piston rod 11 is through cylinder cap 4 and extends to the top of cylinder cap 4, cylinder body 1 it is upper Lower both ends offer the first oilhole 9 and the second oilhole 13 respectively, during cylinder efficient, the first oilhole 9 and the second oilhole 13 are connected respectively to catheter, consequently facilitating piston rod 11 is driven to move up and down.
The upper surface of cylinder cap 4, which is run through, is equipped with multiple telescoping mechanisms, is respectively connected with tube plug 10, tube plug between multiple telescoping mechanisms 10 Matching installations are in the inside of cylinder body 1 so that tube plug 10 is slided along the inner wall of cylinder body 1, telescoping mechanism at least provided with two simultaneously The two sides of piston rod 11 are symmetrically arranged amongst, stability of the tube plug 10 in moving process is improved.
Telescoping mechanism includes the second pipe fitting 6 and the through-hole 17 for being provided with 4 upper surface of cylinder cap, and the second pipe fitting 6 is mounted on cylinder cap 4 Upper surface and corresponding with the position of through-hole 17, the bottom of the second pipe fitting 6 is bonded with rubber seal 14, rubber seal 14 Bottom surface is contacted with the upper surface of cylinder cap 4, and by the way that rubber seal 14 is added, rubber seal 14 is for improving 6 He of the second pipe fitting Leakproofness between cylinder cap 4.
The outside of second pipe fitting 6 is equipped with multiple fixed plates 15, and fixed plate 15 is connected by the second lock-screw 16 with cylinder cap 4 It connects, the inside top surface of the second pipe fitting 6 is equipped with telescopic rod, and one end of telescopic rod passes through through-hole 17 and is mounted on the upper table of tube plug 10 Face, telescopic rod include the first pipe fitting 5, and one end of the first pipe fitting 5 is mounted on the inside top surface of the second pipe fitting 6, the first pipe fitting 5 it is another One end is plugged with mounting rod 3 so that mounting rod 3 along the first pipe fitting 5 inner wall slide, mounting rod 3 far from the first pipe fitting 5 one End is mounted on the upper surface of tube plug 10, and spring 2 is socketed on the first pipe fitting 5 and mounting rod 3, pushes tube plug 10 upward in piston 12 When mobile, mounting rod 3 slide in the first pipe fitting 5 and compressed spring 2, when piston 12 moves down, due to spring 2 Stress reduces, therefore spring 2 pushes mounting rod 3 to be moved on the first pipe fitting 5, to change mounting rod 3 and the first pipe fitting 5 Between length.
Tube plug 10 is socketed in the side of piston rod 11, so that tube plug 10 is slided along the side of piston rod 11, on telescopic rod It is socketed with spring 2, the both ends of spring 2 are connect with the upper surface of the inside top surface of the second pipe fitting 6 and tube plug 10 respectively, in tube plug 10 In the case where stress, the only effect by 10 gravity of tube plug of spring 2, state of the spring 2 in elongation, and 10 stress of tube plug When, the Length Contraction of spring 2 is in compressive state.
Working principle: in cylinder efficient, oil liquid is entered in cylinder body 1 by catheter from the second oilhole 13, with oil Increasing for amount pushes piston 12 to move on the inner wall of cylinder body 1, so that piston rod 11 is driven to be moved on cylinder cap 4, so that Oil cylinder band animal body is mobile, and when piston 12 moves upwards contacts with the bottom surface of tube plug 10, so that tube plug 10 is pushed to move synchronously, Compressed spring 2 while to push mounting rod 3 to move in the first pipe fitting 5 blocks the first oilhole 9 and and cylinder cap in tube plug 10 Stop delivering oil when 4 bottom surface contact, the stability of position at piston rod 11 can be kept in this way.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (5)

1. the bottom end of a kind of good oil cylinder of sealing effect, including cylinder body (1), the cylinder body (1) is fixedly installed with cylinder bottom (7), institute The top for stating cylinder body (1) is equipped with cylinder cap (4) by multiple first lock-screws (8), the matching internal installation of the cylinder body (1) There is the upper surface of piston (12) piston (12) to be equipped with piston rod (11), cylinder cap (4) are run through simultaneously in one end of piston rod (11) Extend to the top of cylinder cap (4), which is characterized in that the upper surface of the cylinder cap (4), which is run through, is equipped with multiple telescoping mechanisms, Duo Geshen It is respectively connected between contracting mechanism tube plug (10), tube plug (10) Matching installation is in the inside of cylinder body (1), so that tube plug (10) is along cylinder The inner wall of body (1) slides, and the telescoping mechanism includes the second pipe fitting (6) and the through-hole (17) for being provided with cylinder cap (4) upper surface, institute State the second pipe fitting (6) and be mounted on the upper surface of cylinder cap (4) and corresponding with the position of through-hole (17), second pipe fitting (6) it is outer Portion is equipped with multiple fixed plates (15), and fixed plate (15) is connect by the second lock-screw (16) with cylinder cap (4), second pipe The inside top surface of part (6) is equipped with telescopic rod, and one end of the telescopic rod passes through through-hole (17) and is mounted on the upper of tube plug (10) Surface, tube plug (10) are socketed in the side of piston rod (11), so that tube plug (10) is slided along the side of piston rod (11), it is described It is socketed on telescopic rod spring (2), the both ends of spring (2) are upper with the inside top surface of the second pipe fitting (6) and tube plug (10) respectively Surface connection.
2. a kind of good oil cylinder of sealing effect according to claim 1, which is characterized in that up and down the two of the cylinder body (1) End offers the first oilhole (9) and the second oilhole (13) respectively.
3. a kind of good oil cylinder of sealing effect according to claim 1, which is characterized in that the bottom of second pipe fitting (6) Portion is bonded with rubber seal (14), and the bottom surface of rubber seal (14) is contacted with the upper surface of cylinder cap (4).
4. a kind of good oil cylinder of sealing effect according to claim 1, which is characterized in that the telescopic rod includes the first pipe Part (5), one end of the first pipe fitting (5) are mounted on the inside top surface of the second pipe fitting (6), and the other end of first pipe fitting (5) is inserted Mounting rod (3) are connected to, so that mounting rod (3) is slided along the inner wall of the first pipe fitting (5), mounting rod (3) is far from the first pipe fitting (5) One end be mounted on the upper surfaces of tube plug (10), the spring (2) is socketed on the first pipe fitting (5) and mounting rod (3).
5. a kind of good oil cylinder of sealing effect according to claim 1, which is characterized in that the telescoping mechanism at least provided with Two and it is symmetrically arranged amongst the two sides of piston rod (11).
CN201821385054.4U 2018-08-27 2018-08-27 A kind of oil cylinder that sealing effect is good Active CN208900453U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821385054.4U CN208900453U (en) 2018-08-27 2018-08-27 A kind of oil cylinder that sealing effect is good

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821385054.4U CN208900453U (en) 2018-08-27 2018-08-27 A kind of oil cylinder that sealing effect is good

Publications (1)

Publication Number Publication Date
CN208900453U true CN208900453U (en) 2019-05-24

Family

ID=66570422

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821385054.4U Active CN208900453U (en) 2018-08-27 2018-08-27 A kind of oil cylinder that sealing effect is good

Country Status (1)

Country Link
CN (1) CN208900453U (en)

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