CN204003787U - Elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder - Google Patents
Elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder Download PDFInfo
- Publication number
- CN204003787U CN204003787U CN201420341872.XU CN201420341872U CN204003787U CN 204003787 U CN204003787 U CN 204003787U CN 201420341872 U CN201420341872 U CN 201420341872U CN 204003787 U CN204003787 U CN 204003787U
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- lock tube
- oil hydraulic
- elasticity
- inner cone
- claw
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Abstract
The utility model belongs to oil hydraulic cylinder field, particularly discloses a kind of oil hydraulic cylinder elastic card claw retractably enclosed automatic locking mechanism; It is succinct that technical problem to be solved is to provide a kind of profile, compact structure, does not need additional operations mechanism, separately act of operation, oil hydraulic cylinder, in realizing expanding-contracting action, is realized locking and a kind of oil hydraulic cylinder of release action elastic card claw retractably enclosed automatic locking mechanism; Comprise cylinder barrel, back cylinder cover, piston rod, piston, the outer claw of elasticity and inner cone guiding lock tube, cylinder barrel and back cylinder cover are threaded, cylinder barrel external diameter and back cylinder cover inwall gap, piston rod is movably arranged in cylinder barrel, piston sleeve is contained in piston rod front end, the outer claw of elasticity is threaded in the front end of piston, and inner cone guiding lock tube is pressed on back cylinder cover step by cylinder barrel, inner cone guiding lock tube external diameter and back cylinder cover internal diameter Spielpassung; Locking when outer clamping step by elastic card claw and inner cone guiding lock tube mutually lock and carry out oil hydraulic cylinder and regain.
Description
Technical field
The utility model belongs to oil hydraulic cylinder field, particularly relate to a kind of oil hydraulic cylinder elastic card claw retractably enclosed automatic locking mechanism, be mainly used in military hardware, civil engineering vehicle band while carrying, parking locking reliably and with long-term under state and transport state, and there will not be in the hydraulic jack of equipping the phenomenons such as expansion, displacement on car.
Background technique
Produce in each field in national economy such as national defence field, engineering, mine, metallurgical machinery and hydraulic engineerings, (cylinder is consistent with hydraulic cylinder works principle with elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder, content is called for short oil hydraulic cylinder below) as a kind of executive component that drives and bear large load, when usually requiring in work and not working, there is locking and positioning function, while work, support long-term and stably outer load and non-displacement requires oil hydraulic cylinder in the time stretching out, to have lock function; In the time not working, for preventing that tensioning mechanism from surprisingly launching, require oil hydraulic cylinder in the time regaining, to have lock function.
With regard to having of the current extensive use of retracted state locking framework: regaining oil hydraulic cylinder outside, the movable device that will lock and vehicle securing mechanism are locked with mechanical connection, this mode guarantee locked part reliably, fixing safely, shortcoming is between locked part and fixed mechanism, to increase connection set, and increase machine adds difficulty simultaneously.It is another kind of for hydraulic pressure block of valve cut-out path is installed in system, confining pressure oil gas chamber seal fluid is realized the mode of oil hydraulic cylinder locking, because sealing technique allows to exist certain leakage rate, can not meet locking operating mode needs steady in a long-term, do not meet the occasion high to safety requirement, ordinary circumstance need not.
Other,, as screw piston rod locking form, requires a spcific power mechanism and power source in each root oil hydraulic cylinder, and spare system complexity, mechanism are huge; It is simple that conical surface friction compresses locking framework, but conical surface compression reaction thrust is limited; Interference locking requires very strict to magnitude of interference, between being controlled at several, simultaneously to product raw material, mechanical processing technique, heat treatedly require corresponding raising, cause difficulty of processing large, yield rate is low.
Model utility content
The utility model overcomes the deficiency that prior art exists, technical problem to be solved is for providing a kind of profile succinct, consistent with common oil hydraulic cylinder, compact structure, without unnecessary control port, lock function is reliably rapid, do not need additional operations mechanism, act of operation separately, oil hydraulic cylinder, in realizing expanding-contracting action, is realized locking and a kind of oil hydraulic cylinder of release action elastic card claw retractably enclosed automatic locking mechanism.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder, comprise cylinder barrel, back cylinder cover, piston rod, piston, the outer claw of elasticity and inner cone guiding lock tube, described cylinder barrel and back cylinder cover are threaded, cylinder barrel external diameter and back cylinder cover inwall gap, described piston rod is movably arranged in cylinder barrel, piston sleeve is contained in piston rod front end, the outer claw of described elasticity is threaded in the front end of described piston, described inner cone guiding lock tube is pressed on back cylinder cover step by cylinder barrel, inner cone guiding lock tube external diameter and back cylinder cover internal diameter Spielpassung,
On the external diameter of the outer claw of described elasticity end, be provided with the outer clamping step that both sides are inclined-plane, the convenient turnover of skew back face inner cone guiding lock tube, opposite side inclined-plane and the locking of inner cone guide lock cover; The middle part of described inner cone guiding lock tube is provided with the outer claw of elasticity by hole, and the outer claw of described elasticity is provided with inclined-plane by the two ends in hole, and a skew back face is used for to the outer claw guiding of described elasticity, the outer claw locking of opposite side inclined-plane and elasticity.
Preferably, also comprise interior locking lock tube, spring, spring stack and nut, described spring stack is arranged in back cylinder cover installation step, described interior locking lock tube entirety is stepped, in locking lock tube one end inner hole sleeve be contained on described spring, the other end ladder surface contacts with inner cone guide lock cover, both ends of the spring is pressed on interior locking lock tube and spring stack respectively the lead bottom of lock tube and back cylinder cover of inner cone, described nut is threaded with spring stack, has limited spring and stretchs out for blocking interior locking lock tube.
Preferably, described interior locking lock tube enters elasticity and is provided with importing inclined-plane in the end of claw outward.
Preferably, a side of the outer clamping step of the outer claw of described elasticity is provided with axial grooving.
Preferably, on described back cylinder cover, near interior locking lock tube installation step outer radial, ventilation screw is set, described ventilation screw is used for connecting air-strainer.
The utility model compared with prior art has following beneficial effect.
The first, the lockable mechanism that the utility model consists of parts such as the outer claw of elasticity and inner cone guiding lock tube and interior locking lock tubes, can realize automatically locking and release, is mainly used in oil hydraulic cylinder retracted state and retracted state requirement while having larger tension load behavior.Secondary (enclosed) lock function makes locking more reliable.
The second, the utility model does not need only operating element and act of operation realization to automatically lock and release; Reasonable arrangement structure, the lockable mechanism of the outer claw of elasticity only increases the function of oil hydraulic cylinder, but does not affect the form structure of oil hydraulic cylinder, makes oil hydraulic cylinder form structure compactness, and simple to operate, mounting interface is reasonable; After locking, do not need work fluid, hydraulic pump source can quit work, and the operating time of oil sources dwindles, and has extended the operating life of system, has saved the energy simultaneously, has reduced noise.Cylinder device has omitted hydraulic lock, avoids the soft leg phenomenon that produces due to hydraulic lock seepage, and oil circuit is simple.
Three, the utility model efficiently solves that the locking occurring in current cylinder ends mechanical locking mechanism is unreliable, locking framework and oil hydraulic cylinder manufacture difficulty, the problems such as working life is low, meet there has been to requirement in space, to the application demand of the strict occasion of locking reliability requirement.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
In figure: 1 is cylinder barrel, 2 is back cylinder cover, and 3 is piston rod, and 4 is piston, and 5 is the outer claw of elasticity, and 6 is inner cone guiding lock tube, and 7 is interior locking lock tube, and 8 is spring, and 9 is spring stack, and 10 is nut.
Embodiment
As shown in Figure 1, elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder, comprise cylinder barrel 1, back cylinder cover 2, piston rod 3, piston 4, the outer claw 5 of elasticity and inner cone guiding lock tube 6, described cylinder barrel 1 and back cylinder cover 2 are threaded, cylinder barrel 1 external diameter and back cylinder cover 2 inwall gaps, described piston rod 3 is movably arranged in cylinder barrel 1, piston 4 is sleeved on piston rod 3 front ends, the outer claw 5 of described elasticity is threaded in the front end of described piston 4, the outer claw 5 of elasticity stretches and does axial motion with piston rod 3 with piston 4, described inner cone guiding lock tube 6 is pressed on back cylinder cover 2 steps by cylinder barrel 1, inner cone guiding lock tube 6 is without axial motion, external diameter and back cylinder cover 2 internal diameter Spielpassung,
On the external diameter of the outer claw of described elasticity 5 ends, be provided with the outer clamping step that both sides are inclined-plane, the convenient turnover of skew back face inner cone guiding lock tube 6, opposite side inclined-plane and inner cone guiding lock tube 6 lock; The middle part of described inner cone guiding lock tube 6 is provided with the outer claw 5 of elasticity by hole, and the outer claw 5 of described elasticity is provided with inclined-plane by the two ends in hole, and a skew back face is for leading to the outer claw 5 of described elasticity, and the outer claw 5 of opposite side inclined-plane and elasticity locks.Inclined-plane, the outer outer clamping boss one end of claw 5 of elasticity is used for locking with inner cone guiding lock tube 6, and it is easier that the other end inclined-plane makes it enter inner cone guiding lock tube 6, protects inner cone guiding lock tube 6 conical surface that leads simultaneously.Pawl valve structure makes the outer claw 5 of elasticity in the time of work, draw in and to reset, and realizes locking and unlocking function.
Preferably, also comprise interior locking lock tube 7, spring 8, spring stack 9 and nut 10, described spring stack 9 is arranged in back cylinder cover 2 installation steps, described interior locking lock tube 7 entirety are stepped, interior locking lock tube 7 one end inner hole sleeves are contained on described spring 8, the other end ladder surface contacts with inner cone guiding lock tube 6, spring 8 two ends are pressed on interior locking lock tube 7 and spring stack 9 respectively the bottom of inner cone guiding lock tube 6 and back cylinder cover 2, described nut 10 is threaded with spring stack 9, being used for blocking interior locking lock tube 7 has limited spring 8 and has stretched out, pass through interior locking lock tube 7 by spring stack 9 axial restraints simultaneously.Spring stack 9 is one end and back cylinder cover 2 concave surface Spielpassung radially, and the other end and interior locking lock tube 7 Spielpassung are fixed, radially fixing.Interior locking lock tube 7 one end cylinders are used for preventing the rear unexpected contraction of outer claw 5 locking of elasticity, and it is easy that inclined-plane, ingress makes to enter the outer claw 5 of elasticity.The other end endoporus is used for placing spring 8, gives spring 8 flexible guiding, and prevents from being out of shape in spring 8 telescopic process.
Preferably, described interior locking lock tube 7 enters elasticity and is provided with importing inclined-plane in the end of claw 5 outward.Importing inclined-plane facilitates the outer claw 5 of elasticity to enter.
Preferably, a side of the outer clamping step of the outer claw 5 of described elasticity is provided with axial grooving.Axially grooving ensures that the outer claw 5 of elasticity has one radial contraction.
Preferably, on described back cylinder cover 2, near interior locking lock tube 7 installation step outer radials, ventilation screw is set, described ventilation screw is used for connecting air-strainer.
Form rodless cavity by piston 4, cylinder barrel 1, back cylinder cover 2, piston rod 3, front end housing (not shown), cylinder barrel 1, piston 4, piston rod 3 form rod chamber.
Working procedure of the present utility model is: oil hydraulic cylinder rod chamber is to pressure oil, piston rod 3 is recovered to locking bit, the outer claw 5 of elasticity enters inner cone guiding lock tube 6, the outer clamping step of the outer claw 5 of elasticity and the 6 inclined-plane lockings of inner cone guiding lock tube, now hydraulic cylinder pressure relief, interior locking lock tube 7, under spring 8 power effects, enters outer claw 5 inner chambers of elasticity, prevent the outer claw 5 of elasticity unexpected disengagement from inner cone guiding lock tube 6, cause lockout failure.While unblanking, oil hydraulic cylinder rodless cavity is to pressure oil, interior locking lock tube 7 Compress Springs 8, until interior locking lock tube 7 leaves outer claw 5 inner chambers of elasticity, oil hydraulic cylinder possesses the condition of unblanking, in the time that oil pressure is enough, the outer claw 5 of elasticity is thrown off from inner cone guiding lock tube 6, and piston rod 3 starts to stretch out.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (5)
1. an elastic card claw retractably enclosed automatic locking mechanism for oil hydraulic cylinder, it is characterized in that: comprise cylinder barrel (1), back cylinder cover (2), piston rod (3), piston (4), the outer claw (5) of elasticity and inner cone guiding lock tube (6), described cylinder barrel (1) and back cylinder cover (2) are threaded, cylinder barrel (1) external diameter and back cylinder cover (2) inwall gap, described piston rod (3) is movably arranged in cylinder barrel (1), piston (4) is sleeved on piston rod (3) front end, the outer claw (5) of described elasticity is threaded in the front end of described piston (4), described inner cone guiding lock tube (6) is pressed on back cylinder cover (2) step by cylinder barrel (1), inner cone guiding lock tube (6) external diameter and back cylinder cover (2) internal diameter Spielpassung,
On the external diameter of the outer claw (5) of described elasticity end, be provided with the outer clamping step that both sides are inclined-plane, a skew back face convenient turnover inner cone guiding lock tube (6), opposite side inclined-plane and inner cone guiding lock tube (6) locking; The middle part of described inner cone guiding lock tube (6) is provided with the outer claw (5) of elasticity and passes through hole, the outer claw (5) of described elasticity is provided with inclined-plane by the two ends in hole, one skew back face is for leading to the outer claw (5) of described elasticity, and the outer claw (5) of opposite side inclined-plane and elasticity locks.
2. elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder according to claim 1, it is characterized in that: also comprise interior locking lock tube (7), spring (8), spring stack (9) and nut (10), described spring stack (9) is arranged in back cylinder cover (2) installation step, described interior locking lock tube (7) entirety is stepped, interior locking lock tube (7) one end inner hole sleeve is contained on described spring (8), the other end ladder surface contacts with inner cone guiding lock tube (6), spring (8) two ends are pressed on interior locking lock tube (7) and spring stack (9) respectively the bottom of inner cone guiding lock tube (6) and back cylinder cover (2), described nut (10) is threaded with spring stack (9), being used for blocking interior locking lock tube (7) has limited spring (8) and has stretched out.
3. elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder according to claim 2, is characterized in that: the end that described interior locking lock tube (7) enters the outer claw (5) of elasticity is provided with importing inclined-plane.
4. elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder according to claim 1, is characterized in that: a side of the outer clamping step of the outer claw (5) of described elasticity is provided with axial grooving.
5. elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder according to claim 2, it is characterized in that: described back cylinder cover (2) is upper arranges ventilation screw near interior locking lock tube (7) installation step outer radial, and described ventilation screw is used for connecting air-strainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341872.XU CN204003787U (en) | 2014-06-25 | 2014-06-25 | Elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420341872.XU CN204003787U (en) | 2014-06-25 | 2014-06-25 | Elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003787U true CN204003787U (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420341872.XU Withdrawn - After Issue CN204003787U (en) | 2014-06-25 | 2014-06-25 | Elastic card claw retractably enclosed automatic locking mechanism for a kind of oil hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003787U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088853A (en) * | 2014-06-25 | 2014-10-08 | 长治清华机械厂 | Elastic clamping claw withdrawing type closed automatic locking mechanism for hydraulic cylinder |
| CN114922879A (en) * | 2022-04-02 | 2022-08-19 | 宁波悦威液压科技有限公司 | Deep sea water pressure self-locking type oil cylinder |
-
2014
- 2014-06-25 CN CN201420341872.XU patent/CN204003787U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088853A (en) * | 2014-06-25 | 2014-10-08 | 长治清华机械厂 | Elastic clamping claw withdrawing type closed automatic locking mechanism for hydraulic cylinder |
| CN114922879A (en) * | 2022-04-02 | 2022-08-19 | 宁波悦威液压科技有限公司 | Deep sea water pressure self-locking type oil cylinder |
| CN114922879B (en) * | 2022-04-02 | 2024-05-10 | 宁波悦威液压科技有限公司 | Deep sea water pressure self-locking type oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |