CN106837925A - A kind of multistage pressure cylinder - Google Patents

A kind of multistage pressure cylinder Download PDF

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Publication number
CN106837925A
CN106837925A CN201710148090.2A CN201710148090A CN106837925A CN 106837925 A CN106837925 A CN 106837925A CN 201710148090 A CN201710148090 A CN 201710148090A CN 106837925 A CN106837925 A CN 106837925A
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CN
China
Prior art keywords
cylinder
level
stage
multistage pressure
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710148090.2A
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Chinese (zh)
Inventor
李宝仁
盛立
高隆隆
何文凯
傅晓云
杨钢
杜经民
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huazhong University of Science and Technology filed Critical Huazhong University of Science and Technology
Priority to CN201710148090.2A priority Critical patent/CN106837925A/en
Publication of CN106837925A publication Critical patent/CN106837925A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1428Cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423Component parts; Constructional details
    • F15B15/1438Cylinder to end cap assemblies
    • F15B15/1442End cap sealings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/14Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type

Abstract

The invention discloses a kind of multistage pressure cylinder, including upper and lower end cap, outer cylinder, one-level cylinder, secondary cylinder, three-stage cylinder, level Four cylinder, Pyatyi cylinder, six grades of cylinders, baffle ring, threaded collar, guidance tape and sealing rings;Outer cylinder reduces step by step from outside to inside to the diameter of multi-stage cylinder, and gap coordinates step by step;Baffle ring and threaded collar are respectively provided with described outer cylinder, one-level cylinder, secondary cylinder, three-stage cylinder, level Four cylinder;Described outer cylinder and one to level Four cylinder are used with threaded collar and are threadedly coupled;Axle sealing ring is equipped between described outer cylinder and every grade of cylinder;Guidance tape is equipped between described outer cylinder and every grade of cylinder;Sealing ring is housed between described bottom end cover and outer cylinder.Multistage pressure air cylinder structure of the invention is simple, low cost, safety and environmental protection, meets that small volume, stroke be long, heavy load job requirement occasion.

Description

A kind of multistage pressure cylinder
Technical field
The present invention relates to a kind of pneumatics field, and in particular to a kind of multistage pressure cylinder.
Background technology
Pneumatic system obtains easy with its working media, and low cost, safety and environmental protection is easy to central gas supply and long-distance sand transport The advantages of, it is widely used in the every field of modern industry.Cylinder is pneumatic system executive component.
At present, widely used cylinder is generally low pressure single-stage cylinder, but because of the effective travel and cylinder of single-stage low-pressure cylinder Initial length is directly proportional, and power density ratio is relatively low, therefore single-stage low-pressure cylinder is not suitable for the application scenario of long stroke, heavy load. Multi-stage cylinder can increase the effective travel of cylinder on the premise of cylinder initial length is not increased using flexible principle.Existing patent Multi-stage cylinder structure it is more complicated, power output is smaller, is not suitable for heavy load operating mode.
Accordingly, it would be desirable to develop a kind of multistage pressure cylinder to meet the job requirement of small size, heavy load, long stroke.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, the invention provides a kind of multistage pressure cylinder, its purpose It is that by the ingenious setting multi-stage cylinder in outer cylinder, every grade of cylinder can bear a fixed load, and every grade of cylinder bears load The mutually cumulative load that can increase whole cylinder, multistage pressure air cylinder structure of the invention is simple, low cost, safety and environmental protection, can be full Sufficient small volume, stroke are long, heavy load job requirement occasion.
To achieve the above object, the invention provides a kind of multistage pressure cylinder, it includes axle sealing ring, outer cylinder, One-level cylinder, secondary cylinder, three-stage cylinder, level Four cylinder, Pyatyi cylinder, six grades of cylinders, baffle ring, threaded collar, bottom end cover is led To band, sealing ring, wherein,
Outer cylinder is cylindrical in shape, in outer cylinder from cylinder inwall to cylinder center be disposed with one-level cylinder, secondary cylinder, Three-stage cylinder, level Four cylinder, Pyatyi cylinder and six grades of cylinders, the outer cylinder, one-level cylinder, secondary cylinder, three-stage cylinder, Level Four cylinder, Pyatyi cylinder and six grades of cylinders jacket and casing wall coordinates in gap successively, to ensure to be wrapped in interior cylinder Upper level cylinder that can be relatively closely adjacent is slided relatively.
The inwall upper end of the outer cylinder and every grade of cylinder has groove for assembling axle sealing ring, the axle It is used to ensure air-tightness between upper level cylinder and next stage cylinder with sealing ring.
The outer cylinder assembled shaft o-ring groove lower section and every grade of groove of cylinder inner wall upper end assembling sealing ring Lower section is additionally provided with groove, and for assembling guidance tape, the outer wall lower end of every grade of cylinder is also provided with groove to assemble guidance tape.
Threaded collar is bolted with the outer cylinder lower end inner wall, shelves are additionally provided between threaded collar and outer cylinder Ring, threaded collar is bolted with the inwall lower end of the one-level cylinder, secondary cylinder, three-stage cylinder and level Four cylinder, In threaded collar and the one-level cylinder, a grade ring is additionally provided between secondary cylinder, three-stage cylinder and level Four cylinder respectively, institute The upper surface of the slightly above multiple threaded collars in the upper surface of some shelves rings.
The bottom end cover is spirally connected and is fixed on the bottom of outer cylinder, and be provided with the contact surface of bottom end cover and outer cylinder groove with Assembling sealing ring,
In the outer cylinder, one-level cylinder, secondary cylinder, three-stage cylinder, level Four cylinder and Pyatyi cylinder inner wall upper end Upper limit boss is provided with, in the one-level cylinder, secondary cylinder, three-stage cylinder, level Four cylinder, Pyatyi cylinder and six grades The outer wall lower end of cylinder is provided with lower limit boss.
In the present invention, multi-stage cylinder is respectively from outside to inside outer cylinder, one-level cylinder, secondary cylinder, three-stage cylinder, level Four Cylinder, Pyatyi cylinder and six grades of cylinders, described outer cylinder and the diameter of cylinder at different levels reduce step by step from outside to inside, step by step gap Coordinate;The inner upper end of outer cylinder and every grade of cylinder has groove to assemble axle sealing ring;Outer cylinder and every grade of cylinder Inner upper end assembling sealing ring groove lower section and the outside lower end of every grade of cylinder groove is provided with to assemble guidance tape;Screw thread Back-up ring is connected in outer cylinder and the interior lower end of one to level Four cylinder using screw thread;Baffle ring is assembled in threaded collar and outer Between cylinder barrel and every grade of cylinder;Bottom end cover is fixed with bolts in the bottom of outer cylinder, and bottom end cover and outer cylinder connect Groove is provided with contacting surface to assemble sealing ring.
Further, the upper limit boss be arranged on the guidance tape adjacent with axle sealing ring lower section and with the guiding With adjacent;The lower limit boss is arranged on the groove of cylinder outer wall lower end assembling guidance tape and adjacent thereto.
Further, the air inlet tapped through hole for being ventilated to multistage pressure cylinder is offered in the middle of bottom end cover.
Further, the baffle ring is formed by connecting for three structure identical segmental arcs.
Further, threaded collar top outside opens up fluted for housing baffle ring, is additionally operable to limit shelves ring Position, the threaded collar bottom is provided with for the convenient fabrication hole installed.
Further, also including upper end cover, the upper end cover is fixed on six grades of tops of cylinder.
Further, six grades of cylinders are in the form of a column, and its top is offered for fixing upper end cover screwed hole.
In general, by the contemplated above technical scheme of the present invention compared with prior art, can obtain down and show Beneficial effect:
In the present invention, ingenious setting multi-stage cylinder in outer cylinder.Operationally:One, the working media of this multi-stage cylinder is High pressure gas, compare than common cylinder, more powerful;Two, the gas in cylinder uphill process between every grade of cylinder casing wall is logical The gap crossed between casing wall is arranged to cylinder interior, and external environment condition will not be impacted, and common cylinder will not be produced outwards to be vented When noise;Three, the effective travel after cylinder is fully extended is approximately six times of Primordial Qi cylinder axial length, so ensure that cylinder Smaller size smaller on the premise of, this multi-stage cylinder long stroke is embodied, the characteristics of heavy load can be born.
Multistage pressure air cylinder structure of the invention is simple, low cost, and safety and environmental protection will not be to external exhaust gas, additionally, this is more Level high-pressure cylinder is more suitable for requiring that small volume, stroke be long, heavy load occasion.
Brief description of the drawings
Fig. 1 (a) is the structure principle chart of multistage pressure cylinder of the present invention;
Fig. 1 (b) is the structural principle partial enlarged drawing of multistage pressure cylinder of the present invention;
Fig. 2 be multistage pressure cylinder of the invention in one-level cylinder stretch out schematic diagram;
Fig. 3 (a) is baffle ring structure top view in multistage pressure cylinder of the present invention;
Fig. 3 (b) is baffle ring structure left view in multistage pressure cylinder of the present invention;
Fig. 4 (a) is the threaded collar sectional view of multistage pressure cylinder of the present invention;
Fig. 4 (b) is the threaded collar top view of multistage pressure cylinder of the present invention;
Fig. 5 (a) is the outer cylinder front view of multistage pressure cylinder of the present invention;
Fig. 5 (b) is the outer cylinder right view of multistage pressure cylinder of the present invention;
Fig. 5 (c) is A-A faces sectional view in Fig. 5 (a);
Fig. 6 (a) is the front view of one to Pyatyi cylinder in multistage pressure cylinder of the present invention, one-level cylinder to level Four cylinder Structure is identical;
Fig. 6 (b) is the sectional view in A-A faces in Fig. 6 (a);
Fig. 7 (a) is the front view of Pyatyi cylinder in multistage pressure cylinder of the present invention;
Fig. 7 (b) is the sectional view in A-A faces in Fig. 7 (a);
Fig. 8 (a) is six grades of cylinder front views in multistage pressure cylinder of the present invention;
Fig. 8 (b) is the sectional view in A-A faces in Fig. 8 (a).
In all of the figs, identical reference be used for represent identical element or structure, wherein:
1- upper end covers, 2- axle sealing rings, 3- outer cylinders, 4- one-level cylinders, 5- secondary cylinders, 6- three-stage cylinders, 7- tetra- Level cylinder, 8- Pyatyi cylinders, six grades of cylinders of 9-, 10- baffle rings, 11- threaded collars, 12- bottom end covers, 13- guidance tapes, 14- sealings Circle, 15- upper limit boss, 16- lower limit boss.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.As long as additionally, technical characteristic involved in invention described below each implementation method Not constituting conflict each other can just be mutually combined.
Fig. 1 (a) is the structure principle chart of multistage pressure cylinder of the present invention, and Fig. 1 (b) is the knot of multistage pressure cylinder of the present invention Structure principle partial enlarged drawing, Fig. 2 be multistage pressure cylinder of the invention in one-level cylinder stretch out schematic diagram, as seen from the figure, this hair A kind of bright multistage pressure cylinder, including upper end cover 1, axle sealing ring 2, outer cylinder 3, one-level cylinder 4, secondary cylinder 5, three-level Cylinder 6, level Four cylinder 7, Pyatyi cylinder 8, six grades of cylinders 9, baffle ring 10, threaded collar 11, bottom end cover 12, guidance tape 13 and close Seal 14.
Fig. 5 (a) is the outer cylinder front view of multistage pressure cylinder of the present invention;Fig. 5 (b) is multistage pressure cylinder of the present invention Outer cylinder right view;Fig. 5 (c) is A-A faces sectional view in Fig. 5 (a), and Fig. 6 (a) is one to level Four in multistage pressure cylinder of the present invention The front view of cylinder, one-level cylinder is identical to the structure of level Four cylinder, and Fig. 6 (b) is the sectional view in A-A faces in Fig. 6 (a), Fig. 7 A () is the front view of Pyatyi cylinder in multistage pressure cylinder of the present invention, from bottom unlike other cylinders without installing screw thread Back-up ring 11, the screw thread not coordinated with it, Fig. 7 (b) is the sectional view in A-A faces in Fig. 7 (a).Each figure understands with reference to more than, outer shell Cylinder 3 is cylindrical in shape, and one-level cylinder 4, secondary cylinder 5, three-stage cylinder are disposed with to cylinder center from cylinder inwall in outer cylinder 3 6th, level Four cylinder 7, Pyatyi cylinder 8 and six grades of cylinders 9, the outer cylinder 3, one-level cylinder 4, secondary cylinder 5, three-stage cylinder 6, Level Four cylinder 7, Pyatyi cylinder 8 and six grades of cylinders 9 jacket and casing wall coordinates in gap successively, to ensure to be wrapped in interior gas Cylinder can be relatively closely adjacent upper level cylinder relative slide.The inwall upper end of outer cylinder 3 and every grade of cylinder has For assembling axle sealing ring 2, the axle sealing shroud 2 is used to ensure airtight between upper level cylinder and next stage cylinder groove Property.The assembled shaft o-ring groove of the outer cylinder 3 lower section and every grade of groove lower section of cylinder inner wall upper end assembling sealing ring 2 Groove is additionally provided with, for assembling guidance tape 13, the outer wall lower end of every grade of cylinder is also provided with groove to assemble guidance tape 13.
Threaded collar 11 is bolted with the lower end inner wall of the outer cylinder 3, is also set between threaded collar 11 and outer cylinder 3 Grade ring 10 is equipped with, is spirally connected at the inwall lower end of the one-level cylinder 4, secondary cylinder 5, three-stage cylinder 6 and level Four cylinder 7 There is threaded collar 11, in threaded collar 11 and the one-level cylinder 4, between secondary cylinder 5, three-stage cylinder 6 and level Four cylinder 7 Grade ring 10, the upper surface of the slightly above multiple threaded collars 11 in upper surface of all of shelves ring 10 are additionally provided with respectively.Bottom end cover 12 are spirally connected is fixed on the bottom of outer cylinder 3, and is provided with groove to assemble sealing ring on the contact surface of bottom end cover 12 and outer cylinder 3 14。
In the outer cylinder 3, one-level cylinder 4, secondary cylinder 5, three-stage cylinder 6, level Four cylinder 7 and the volume of Pyatyi cylinder 8 Inwall upper end is provided with upper limit boss 15, in the one-level cylinder 4, secondary cylinder 5, three-stage cylinder 6, level Four cylinder 7, five The outer wall lower end of level cylinder 8 and six grades of cylinders 9 is provided with lower limit boss 16.The upper limit boss 15 is arranged on and axle With the lower section of the adjacent guidance tape 13 of sealing ring 2 and adjacent with the guidance tape 13;The lower limit boss 16 is arranged on outside cylinder It is upper and adjacent thereto on the groove of wall lower end assembling guidance tape 13.
In one embodiment of the invention, the air inlet for being ventilated to multistage pressure cylinder is offered in the middle of bottom end cover 12 Tapped through hole.
Fig. 3 (a) is baffle ring structure top view in multistage pressure cylinder of the present invention, and Fig. 3 (b) is multistage pressure cylinder of the present invention Middle baffle ring structure left view, as seen from the figure, the baffle ring 10 is formed by connecting for three structure identical segmental arcs, and baffle ring 10 is three sections Formula structure.
Fig. 4 (a) is the threaded collar sectional view of multistage pressure cylinder of the present invention, and Fig. 4 (b) is multistage pressure cylinder of the present invention Threaded collar top view, as seen from the figure, the top of threaded collar 11 outside open up it is fluted for house baffle ring 10, be additionally operable to Shelves ring is carried out spacing, the bottom of the threaded collar 11 is provided with for the convenient fabrication hole installed.
Fig. 8 (a) is six grades of cylinder front views in multistage pressure cylinder of the present invention;Fig. 8 (b) is that A-A faces are cutd open in Fig. 8 (a) View, as seen from the figure, six grades of cylinders 9 are in the form of a column, and its top is offered for fixing the screwed hole of upper end cover 1, by the spiral shell Upper end cover 1 is fixed on six grades of tops of cylinder 9 by pit.
In the present invention, the threaded collar upper surface being threaded on one-level cylinder keeps off with the screw thread for being screwed onto secondary cylinder The lower surface of circle abuts and partially overlaps, similarly, be screwed onto secondary cylinder threaded collar upper surface be screwed onto three-level gas The lower surface of the threaded collar of cylinder abuts and partially overlaps, be screwed onto three-stage cylinder threaded collar upper surface be screwed onto four The lower surface of the threaded collar of level cylinder abuts and part abuts and partially overlaps again.
Multi-stage cylinder when in compressive state, the outer cylinder 3, one-level cylinder 4, secondary cylinder 5, three-stage cylinder 6, four Level cylinder 7, Pyatyi cylinder 8 and six grades of cylinders 9 jacket and casing wall coordinates in gap successively, every grade of cylinder is all installed in one Baffle ring 10 and threaded collar 11 institute on level cylinder is spacing.Six grades of cylinders 9 are spacing by upper end cover 1 mounted thereon.
Described axle sealing ring 2 is arranged on outer cylinder 3 and every grade of upper end of cylinder inner wall, seals.Described Guidance tape 13 is arranged on lower end and six grades of outer walls of cylinder 9 of the inwall upper end of outer cylinder 3, the upper end of every grade of cylinder inner wall and outer wall Lower end, this structure can make every grade of operation of cylinder more stablize.Threaded collar 11 is matched somebody with somebody using external screw thread with the internal thread of cylinder Conjunction is connected to the bottom of outer cylinder 3 and cylinder at different levels, plays position-limiting action, and screw thread coordinates makes connection more convenient reliable.
The course of work of multistage pressure cylinder of the present invention is as follows:
Inflated to high-pressure cylinder by air inlet, compared with larger driving force, the frictional force between every grade of cylinder can be neglected Slightly disregard, suffered driving force is directly proportional to the lifting surface area of cylinder body when being stretched out due to every grade of cylinder, therefore one-level during cylinder charge Cylinder 4 stretches out first, and at this moment the gas between one-level cylinder 4 and outer cylinder 3 is extruded, by the gap between two cylinders arrange to Cylinder interior, the process of stretching out will not will not be impacted to multi-stage cylinder external exhaust gas to external environment condition.
When one-level cylinder 4 reaches the limit of position, the upper limit boss 15 inside outer cylinder 3 can be blocked outside one-level cylinder 4 The lower limit boss 16 in portion, two boss are with closing position-limiting action.
Continue to be inflated to multi-stage cylinder, similarly, secondary cylinder 5 rises to extreme position and can be blocked by one-level cylinder 4;Hold Continue to cylinder charge, three-stage cylinder 6, level Four cylinder 7, Pyatyi cylinder 8 and six grades of cylinders 9 can be fully extended to the corresponding limit successively Position, is finally reached the range of Multi-stage cylinder.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, it is not used to The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., all should include Within protection scope of the present invention.

Claims (7)

1. a kind of multistage pressure cylinder, it is characterised in that it includes axle sealing ring (2), outer cylinder (3), one-level cylinder (4), Secondary cylinder (5), three-stage cylinder (6), level Four cylinder (7), Pyatyi cylinder (8), six grades of cylinders (9), baffle ring (10), threaded collar (11), bottom end cover (12), guidance tape (13), sealing ring (14), wherein,
Outer cylinder (3) is cylindrical in shape, in outer cylinder (3) from cylinder inwall to cylinder center be disposed with one-level cylinder (4), two grades Cylinder (5), three-stage cylinder (6), level Four cylinder (7), Pyatyi cylinder (8) and six grades of cylinders (9), the outer cylinder (3), one-level Cylinder (4), secondary cylinder (5), three-stage cylinder (6), level Four cylinder (7), Pyatyi cylinder (8) and six grades of cylinders (9) are wrapped successively Cover and casing wall coordinates in gap, slided relatively with the upper level cylinder that the cylinder ensured in being wrapped in can be relatively closely adjacent It is dynamic,
The inwall upper end of the outer cylinder (3) and every grade of cylinder has groove for assembling axle sealing ring (2), described Axle sealing shroud (2) for ensureing air-tightness between upper level cylinder and next stage cylinder,
The recessed of sealing ring (2) is assembled in outer cylinder (3) the assembled shaft o-ring groove lower section and every grade of cylinder inner wall upper end Groove lower section is additionally provided with groove, and for assembling guidance tape (13), the outer wall lower end of every grade of cylinder is also provided with groove to assemble guiding Band (13),
Threaded collar (11) is bolted with the outer cylinder (3) lower end inner wall, between threaded collar (11) and outer cylinder (3) A grade ring (10) is additionally provided with, in the interior of the one-level cylinder (4), secondary cylinder (5), three-stage cylinder (6) and level Four cylinder (7) Threaded collar (11) is bolted with wall lower end, in threaded collar (11) and the one-level cylinder (4), secondary cylinder (5), three-level Cylinder (6) and level Four cylinder (7)) between be additionally provided with a grade ring (10) respectively, the upper surface of all of shelves ring (10) is slightly higher In the upper surface of multiple threaded collars (11),
The bottom end cover (12) is spirally connected and is fixed on the bottom of outer cylinder (3), and on the contact surface of bottom end cover (12) and outer cylinder (3) Groove is provided with to assemble sealing ring (14),
In the outer cylinder (3), one-level cylinder (4), secondary cylinder (5), three-stage cylinder (6), level Four cylinder (7) and Pyatyi gas Cylinder (8) volume inwall upper end is provided with upper limit boss (15), in the one-level cylinder (4), secondary cylinder (5), three-stage cylinder (6), the outer wall lower end of level Four cylinder (7), Pyatyi cylinder (8) and six grades of cylinders (9) is provided with lower limit boss (16).
2. a kind of multistage pressure cylinder as claimed in claim 1, it is characterised in that the upper limit boss (15) be arranged on The lower section of the adjacent guidance tape (13) of axle sealing ring (2) is simultaneously adjacent with the guidance tape (13);
The lower limit boss (16) is arranged on upper and adjacent thereto on the groove of cylinder outer wall lower end assembling guidance tape (13).
3. a kind of multistage pressure cylinder according to claim 1 and 2, it is characterised in that is offered in the middle of bottom end cover (12) For the air inlet tapped through hole ventilated to multistage pressure cylinder.
4. a kind of multistage pressure cylinder according to claim 3, it is characterised in that the baffle ring (10) is three structure phases Same segmental arc is formed by connecting.
5. a kind of multistage pressure cylinder according to claim 4, it is characterised in that threaded collar (11) top outside opens up It is fluted for housing baffle ring (10), be additionally operable to carry out shelves ring it is spacing,
Threaded collar (11) bottom is provided with for the convenient fabrication hole installed.
6. a kind of multistage pressure cylinder as claimed in claim 5, it is characterised in that also including upper end cover (1), the upper end cover (1) six grades of tops of cylinder (9) are fixed on.
7. a kind of multistage pressure cylinder as claimed in claim 6, it is characterised in that six grades of cylinders (9) are in the form of a column, its top Portion is offered for fixing upper end cover (1) screwed hole.
CN201710148090.2A 2017-03-14 2017-03-14 A kind of multistage pressure cylinder Pending CN106837925A (en)

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CN112664509A (en) * 2020-12-23 2021-04-16 中国人民解放军92578部队 Telescopic multistage high-pressure cylinder ejection device

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CN103939416A (en) * 2014-05-13 2014-07-23 张振宇 Multistage double-action reciprocating cylinder device
CN104196819A (en) * 2014-09-06 2014-12-10 蚌埠液力机械有限公司 Double-purpose through hole type four-level oil cylinder

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CN112664509A (en) * 2020-12-23 2021-04-16 中国人民解放军92578部队 Telescopic multistage high-pressure cylinder ejection device

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Application publication date: 20170613