CN104329321B - Bursting extension structure of bursting extension cylinder - Google Patents
Bursting extension structure of bursting extension cylinder Download PDFInfo
- Publication number
- CN104329321B CN104329321B CN201410541387.1A CN201410541387A CN104329321B CN 104329321 B CN104329321 B CN 104329321B CN 201410541387 A CN201410541387 A CN 201410541387A CN 104329321 B CN104329321 B CN 104329321B
- Authority
- CN
- China
- Prior art keywords
- plug screw
- bursting
- locking
- guide piston
- extension
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B2015/268—Fluid supply for locking or release independent of actuator pressurisation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a bursting extension structure of a bursting extension cylinder, and belongs to the field of automobile accessories. The invention aims to provide the bursting extension structure of the bursting extension cylinder, which does not cause danger when a hydraulic oil tank is instantaneously stressed. A left cavity and a right cavity are arranged in a U-shaped clip of the bursting extension structure; the left cavity and the right cavity are communicated by a locking groove; on the left side, a guide piston is arranged in the left cavity, a guide rod on the front end of the guide piston is inserted in a channel, the rear end of the guide piston is inserted in a left plug screw, and the left plug screw is inserted into the left cavity through threads; on the right side, a right plug screw is inserted into the right cavity through threads, the front end of the right plug screw is provided with a pressure regulation plug screw, and a spring is installed between the pressure regulation plug screw and a push rod; a sealing steel ball is arranged between the left side of the channel and the push rod; in a bursting extension locking mechanism, the side wall of the guide piston is provided with the locking groove; the U-shaped clip corresponding to the side wall of the guide piston is provided with a locking hole; a locking plug screw is arranged in the locking hole in a threaded installation way; the top of the locking plug screw supports a locking steel ball by extruding the spring. The bursting extension structure has a simple structure, performs a bursting extension function when a hydraulic tank is instantaneously subjected to external force, and protects the safety of passengers.
Description
Technical field
The invention belongs to auto parts machinery field.
Background technology
Hydraulic jack application compare popularization, be by hydraulic energy be changed into mechanical energy, do straight reciprocating motion (or swing fortune
Dynamic) hydraulic actuator.Its structure is simple, reliable operation.When being realized with it moving back and forth, deceleration device can be removed from, and
And there is no drive gap, stable movement, therefore it is used widely in the hydraulic system of various machineries.However, hydraulic jack
In instantaneous stress it is impossible to consume power at once, easily cause danger.
Content of the invention
The purpose of the present invention be can in the instantaneous stress of hydraulic jack, be unlikely to cause danger routed stretch cylinder and burst stretch knot
Structure.
The u folder of the present invention is internal to have left chamber and right chamber, left chamber and right chamber to communicate by locking groove,
Left side: have guide piston in left chamber, the guide post of guide piston front end is inserted in passage, and guide piston rear end is inserted in
In left plug screw, left plug screw is inserted in left chamber by screw thread；
Right side: in right chamber, right plug screw is inserted with by screw thread, right plug screw front end is pressure regulation plug screw, between pressure regulation plug screw and push rod
Spring is installed, sealing steel ball is placed on the left of passage and push rod between；
Burst and stretch lockable mechanism: locking groove is had on the side wall of guide piston；Have on guide piston side wall corresponding u folder
Locking hole, locking hole female thread is provided with locking plug screw, and locking plug screw is above with extrusion spring jack-up locking steel ball.
On the left of the passage of the present invention with the position of push rod grip seal steel ball it is and the sealing corresponding groove of steel ball.
The guide piston side wall of the present invention and u press from both sides left chamber contact surface, guide piston inserts the contact surface of left plug screw all by o
Type sealing ring seals.
Present configuration is simple, and when hydraulic cylinder is subject to instantaneous external force, playing bursts stretches effect, the safety of protection occupant.
Brief description
Fig. 1 is present configuration schematic diagram.
Specific embodiment
Left chamber 2 and right chamber 11, left chamber 2 and right chamber 11 is had to communicate by locking groove 13 inside the u folder 10 of the present invention,
Left side: have guide piston 4 in left chamber 2, the guide post 5 of guide piston 4 front end is inserted in passage 13, guide piston 4
Rear end is inserted in left plug screw 1, and left plug screw 1 is inserted in left chamber 2 by screw thread；
Right side: in right chamber 11, right plug screw 9 is inserted with by screw thread, right plug screw 9 front end is pressure regulation plug screw 8, pressure regulation plug screw 8 with push away
Spring 12 is installed between bar 7, sealing steel ball 6 is placed between passage 13 left side and push rod 7；
Burst and stretch lockable mechanism: locking groove 3 is had on the side wall of guide piston 4；Guide piston 4 side wall corresponding u folder 10
On have locking hole 14, locking hole 14 female thread is provided with locking plug screw 17, and locking plug screw 17 pushes up above with extrusion spring 16
Play locking steel ball 15.
Passage 13 left side and the position of push rod 7 grip seal steel ball 6 of the present invention are and the sealing corresponding groove of steel ball 6.
The guide piston 4 side wall of the present invention and u press from both sides 10 left chamber contact surfaces, guide piston 4 insert left plug screw 1 contact surface equal
Sealed by o type sealing ring.
Below in conjunction with accompanying drawing, the present invention is described in detail:
First, connect:
Left side: o type circle and being contained on guide piston, it is contained in the rising oil circuit side of u folder, the guiding intracavity of routed extending portion position, rise
To sealing, guide effect.Sealing function is played with u folder and plug screw and gasket seal outside guide piston.
Burst and stretch lockable mechanism: lock steel ball and be contained in locking intracavity, communicate with the locking groove of guide piston.Locking steel ball leads to
Cross spring to be connected with plug screw, play sealing, precompressed effect.
Right side: the sealing surface that sealing steel ball is pressed from both sides with u is connected.Outside is connected with pressure regulation plug screw by push rod, spring, plays close
Envelope, pressure regulation effect.Plug screw and pad play sealing function with u folder by thread connection.
2nd, burst and stretch effect operation principle:
Oil cylinder at short notice (within 0.2 second), during by strength external broach.Hydraulic oil has entered to burst by oil circuit stretches work
In check valve.Hydraulic oil acts on the left side of guide piston, promotes guide piston to move right, guide piston backs down sealing
Steel ball.Sealing steel ball drives push rod to move right.Spring is compressed.Meanwhile, locking steel ball, in the presence of pre-compressed spring, enters
In the lock groove of guide piston.Guide piston locking, whole mechanism can not move.
Now, hydraulic cylinder epicoele and cavity of resorption communicate.Epicoele hydraulic oil, through declining oil circuit, by oil circuit, enters into epicoele
In oil circuit.And entered in the lower oil cavitie of hydraulic cylinder by epicoele oil circuit.
Claims (3)
1. a kind of burst stretch cylinder burst stretch structure it is characterised in that: have left chamber (2) and right chamber (11) inside u folder (10), left chamber (2) and
Right chamber (11) is communicated by passage (13),
Left side: have guide piston (4) in left chamber (2), the guide post (5) of guide piston (4) front end is inserted in passage (13), guiding
Piston (4) rear end is inserted in left plug screw (1), and left plug screw (1) is inserted in left chamber (2) by screw thread；
Right side: in right chamber (11), right plug screw (9) is inserted with by screw thread, right plug screw (9) front end is pressure regulation plug screw (8), pressure regulation plug screw
(8) spring (12) is installed and push rod (7) between, sealing steel ball (6) is placed on the right side of passage (13) and push rod (7) between；
Burst and stretch lockable mechanism: locking groove (3) is had on the side wall of guide piston (4)；Wall corresponding u in guide piston (4) side presss from both sides
(10) have locking hole (14) on, locking hole (14) female thread is provided with locking plug screw (17), locking plug screw (17) above with
Extrusion spring (16) jack-up locking steel ball (15).
2. according to claim 1 burst stretch cylinder burst stretch structure it is characterised in that: on the left of passage (13) with push rod (7) clamp
The position of sealing steel ball (6) is groove corresponding with sealing steel ball (6).
3. according to claim 1 burst stretch cylinder burst stretch structure it is characterised in that: guide piston (4) side wall and u folder (10) are left
The contact surface that chamber contact surface, guide piston (4) insert left plug screw (1) is all sealed by o type sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541387.1A CN104329321B (en) | 2014-10-15 | 2014-10-15 | Bursting extension structure of bursting extension cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541387.1A CN104329321B (en) | 2014-10-15 | 2014-10-15 | Bursting extension structure of bursting extension cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104329321A CN104329321A (en) | 2015-02-04 |
| CN104329321B true CN104329321B (en) | 2017-01-25 |
Family
ID=52404106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410541387.1A Active CN104329321B (en) | 2014-10-15 | 2014-10-15 | Bursting extension structure of bursting extension cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104329321B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6473471B2 (en) * | 2017-03-17 | 2019-02-20 | 本田技研工業株式会社 | Actuator and fluid pressure control circuit having the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT233342B (en) * | 1962-06-25 | 1964-05-11 | Hoerbiger Ventilwerke Ag | Multistage switch |
| JP2002081485A (en) * | 2000-09-04 | 2002-03-22 | Kayaba Ind Co Ltd | Device for limiting mounting length of hydraulic shock absorber |
| CN202834270U (en) * | 2012-08-31 | 2013-03-27 | 重庆希克工业自动化设备有限公司 | Pulling off valve |
| CN102878140B (en) * | 2012-10-24 | 2015-04-29 | 山东潍坊鲁中拖拉机有限公司 | Hydraulic distributer |
| CN204186690U (en) * | 2014-10-15 | 2015-03-04 | 长春一东汽车零部件制造有限责任公司 | Burst stretch cylinder burst stretch structure |
-
2014
- 2014-10-15 CN CN201410541387.1A patent/CN104329321B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104329321A (en) | 2015-02-04 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |