CN101725590A - Air driving device with locking unit - Google Patents

Air driving device with locking unit Download PDF

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Publication number
CN101725590A
CN101725590A CN200910233163A CN200910233163A CN101725590A CN 101725590 A CN101725590 A CN 101725590A CN 200910233163 A CN200910233163 A CN 200910233163A CN 200910233163 A CN200910233163 A CN 200910233163A CN 101725590 A CN101725590 A CN 101725590A
Authority
CN
China
Prior art keywords
manual unlocking
piston rod
air
unlocking bar
piston
Prior art date
Application number
CN200910233163A
Other languages
Chinese (zh)
Other versions
CN101725590B (en
Inventor
高敬伟
Original Assignee
南京康尼机电股份有限公司
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 南京康尼机电股份有限公司 filed Critical 南京康尼机电股份有限公司
Priority to CN2009102331633A priority Critical patent/CN101725590B/en
Publication of CN101725590A publication Critical patent/CN101725590A/en
Application granted granted Critical
Publication of CN101725590B publication Critical patent/CN101725590B/en

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Abstract

The invention discloses an air driving device with a locking unit, which comprises the locking unit and the air driving device which are in rigid connection, wherein the air driving device is provided with an air passage interface of the air driving device with the locking unit; the locking unit comprises a small piston, a resetting spring, a locking unit body, a small end cover and a manual unlocking rod, wherein the locking unit body is connected with a cylinder body; the small end cover is connected with the locking unit body; the small piston is sleeved with the locking unit body; the manual unlocking rod is connected with the small piston; one end of the manual unlocking rod is extended out of the small end cover, while the other end together with an annular groove of a piston rod forms a pin-type structure; and the resetting spring is sleeved with the manual unlocking rod and is in contact with the small piston and the end cover. The air driving device with the locking unit has the advantages of the integration of three functions of driving, locking and manual unlocking, simple structure and high integration, and is endowed with high locking precision and reliability due to the integrated structure.

Description

A kind of air driving device that closes the unit with lock
Technical field
What the present invention relates to is a kind of air driving device that closes the unit with lock that is used for track traffic door system and platform bucking-out system.Belong to the air driving device technical field.
Background technique
In the current domestic Rail Transit System, the driving of door system and platform bucking-out system is different according to driving source, roughly can be divided into the moving and electricity driving of gas drive.Yet no matter be which kind of driving source,, all relate to a kind of locking mechanism basically, make door system and platform bucking-out system require the position to carry out locking for guaranteeing the safety of door system and platform bucking-out system.In gas-powered door system and platform bucking-out system, because its structural reason, door system and other outer parts of platform bucking-out system driving source are carried out the relative complexity of locking, need to increase in addition annexes such as complete locking mechanism of a cover and supporting frame, not only increase cost, and increased the weight and the complexity of door system and platform bucking-out system.
Summary of the invention
What the present invention proposed is a kind of air driving device that closes the unit with lock, and its purpose is intended to overcome the above-mentioned defective of existing in prior technology.Be applied to door system and platform bucking-out system can the locking cylinder column air driving device.
Solution of the present invention: its structure is to comprise locking unit and air driving device rigid joint, air driving device is provided with the air-path interface that closes the air driving device of unit with lock, the locking unit comprises small piston, Returnning spring, the locking cell cube, little end cap, the manual unlocking bar, wherein locking cell cube and cylinder body join, little end cap and locking cell cube are joined, small piston and the socket of locking cell cube, manual unlocking bar and small piston join, manual unlocking bar one end passes little end cap, the circular groove of the manual unlocking bar the other end and piston rod constitutes a bolt-type mechanism, and Returnning spring touches mutually with the socket of manual unlocking bar and with small piston and end cap; When piston rod 5 is in retracted state, pressurized air enters in the cylinder body via solenoid valve and along second direction, the manual unlocking bar inserts in the circular groove of piston rod under the effect of Returnning spring, this moment, piston rod kept retracted state under the effect of pressurized air and manual unlocking bar, even this moment, pressurized air was lost, piston rod still can by with the mechanical locking of manual unlocking bar, remain on retracted state; Piston rod is in when stretching out state, pressurized air enters in the cylinder body via solenoid valve and along first direction, the manual unlocking bar inserts in the circular groove of piston rod under the effect of Returnning spring, this moment, piston rod kept stretching out state under the effect of pressurized air and manual unlocking bar, even this moment, pressurized air was lost, piston rod still can by with the mechanical locking of manual unlocking bar, remain on the state of stretching out.
According to the difference of environment, the locking unit can be arranged in the rear and front end of air driving device, and stretching out of piston rod and retracted state are carried out locking; The locking unit also can be arranged in an end of air driving device, to piston rod stretch out or retracted state carries out locking.
Advantage of the present invention: this is with lock close the air driving device of unit integrated driving, locking and three kinds of functions of manual unlocking, simple in structure, level of integration is high, and integrated structure makes the unit that closes with lock have high locking precision and reliability.
Description of drawings
Accompanying drawing 1 is embodiment's 1 air driving device structural representation that closes the unit with lock.
Accompanying drawing 2 is embodiment's 1 gas circuit schematic representation.
Accompanying drawing 3 is that embodiment's 1 piston rod stretches out view.
Accompanying drawing 4 is embodiment's 2 air driving device structural representations that close the unit with lock.
Accompanying drawing 5 is embodiment's 2 gas circuit schematic representation.
Among the figure 1 is the locking unit, the 2nd, and air driving device, the 3rd, cylinder body, the 4th, the air-path interface of air driving device, the 5th, piston rod, the 6th, piston, the 7th, small piston, the 8th, Returnning spring, the 9th, locking cell cube, the 10th, little end cap, the 11st, manual unlocking bar, the 12nd, solenoid valve, the 13rd, pressurized air.
Embodiment
Embodiment 1:
Contrast accompanying drawing 1, its structure is locking unit 1 and air driving device 2 rigid joint, establishes this air-path interface 4 that closes the air driving device of unit with lock on the air driving device 2.
Locking unit 1 comprises small piston 7, Returnning spring 8, locking cell cube 9, small end lid 10, manual unlocking bar 11, wherein locking cell cube 9 is joined with cylinder body 3, small end lid 10 joins with locking cell cube 9, small piston 7 and 9 sockets of locking cell cube, and can slide with respect to locking cell cube 9, manual unlocking bar 11 joins with small piston 7, manual unlocking bar 11 1 ends pass small end lid 10, the circular groove of manual unlocking bar 11 the other ends and piston rod 5 constitutes a bolt-type mechanism, and Returnning spring 8 touches mutually with 11 sockets of manual unlocking bar and with small piston 7 and end cap 10.
Air driving device 2 comprises cylinder body 3, piston rod 5, piston 6, wherein piston 6 and cylinder body 3 sockets, and can be relatively and cylinder body 3 slips, piston rod 5 and piston 6 join, and an end passes locking unit 1.
Contrast accompanying drawing 2, the air driving device that closes the unit with lock moves under the control of the driving of pressurized air 13 and solenoid valve 12; Its working principle is, manual unlocking bar 11 by with the circular groove that is arranged on piston rod 5 be connected and locking and release are carried out in disengagement.
Its working procedure is, when Fig. 1 state, piston rod 5 is in retracted state, pressurized air 13 enters in the cylinder body 3 via solenoid valve 12YII and along direction II, manual unlocking bar 11 inserts under the effect of Returnning spring 8 in the circular groove of piston rod 5, and this moment, piston rod 5 kept retracted state under the effect of pressurized air 13 and manual unlocking bar 11, even this moment, pressurized air 13 was lost, piston rod 5 still can by with the mechanical locking of manual unlocking bar 11, remain on retracted state reliably.
If will make piston rod 5 motions that are in retracted state, need to continue to keep pressurized air 13 to enter in the cylinder body 3 via solenoid valve YII and along direction II, and pressurized air 13 is entered in the cylinder body 3 via solenoid valve YI and along direction I, this moment, piston rod 5 was in state of equilibrium, the small piston 7 that plug closes unit 1CI drives manual unlocking bar 11 under the driving of pressurized air 13, make manual unlocking bar 11 overcome the active force of Returnning spring 8 and move, make manual unlocking bar 11 and piston rod 5 be in complete disengaged condition along direction III.
Cut off the pressurized air 13 along direction II this moment, piston 6 can move along driving piston rod 5 under the effect of the pressurized air 13 of direction I.
When Fig. 3 state, piston rod 5 is in the state of stretching out, pressurized air 13 enters in the cylinder body 3 via solenoid valve 12YI and along direction I, manual unlocking bar 11 inserts in the circular groove of piston rod 5 under the effect of Returnning spring 8, this moment, piston rod 5 kept stretching out state under the effect of pressurized air 13 and manual unlocking bar 11, even this moment, pressurized air 13 was lost, piston rod 5 still can by with the mechanical locking of manual unlocking bar 11, remain on the state of stretching out reliably.
If will make piston rod 5 motions that are in the state of stretching out, need to continue to keep pressurized air 13 to enter in the cylinder body 3 via solenoid valve Y I and along direction I, and pressurized air 13 is entered in the cylinder body 3 via solenoid valve YII and along direction II, this moment, piston rod 5 was in state of equilibrium, the small piston 7 that plug closes unit 1CII drives manual unlocking bar 11 under the driving of pressurized air 13, make manual unlocking bar 11 overcome the active force of Returnning spring 8 and move, make manual unlocking bar 11 and piston rod 5 be in complete disengaged condition along direction III.Cut off the pressurized air 13 along direction I this moment, piston 6 can move along driving piston rod 5 under the effect of the pressurized air 13 of direction II.
When piston rod 5 was in withdrawal or stretches out state, if pressurized air 13 is lost, manual unlocking bar 11 was in the mechanical locking state with piston rod 5.If will carry out manually-operable this moment to piston rod 5, can at first manually spur manual unlocking bar 11, manual unlocking bar 11 and piston rod 5 are thrown off, and then piston rod 5 is carried out manually-operable.
Embodiment 2:
Contrast accompanying drawing 4 and accompanying drawing 5, an improvement project according to the present invention is that locking unit 1 increases independently air-path interface 14.Its pneumatic releasing process is: when pressurized air 13 enters in the locking cell cube 9 by solenoid valve 12YIII, pressurized air 13 drives small piston 7 and drives manual unlocking bar 11, make manual unlocking bar 11 overcome the active force of Returnning spring 8 and move along direction III, make manual unlocking bar 11 and piston rod 5 be in complete disengaged condition, this moment, piston 6 can drive piston rod 5 motions under the effect of pressurized air 13.

Claims (4)

1. air driving device that closes the unit with lock, comprise locking unit and air driving device rigid joint, air driving device is provided with the air-path interface that closes the air driving device of unit with lock, it is characterized in that the locking unit comprises small piston, Returnning spring, the locking cell cube, little end cap, the manual unlocking bar, wherein locking cell cube and cylinder body join, little end cap and locking cell cube are joined, small piston and the socket of locking cell cube, manual unlocking bar and small piston join, manual unlocking bar one end passes little end cap, the circular groove of the manual unlocking bar the other end and piston rod constitutes a bolt-type mechanism, and Returnning spring touches mutually with the socket of manual unlocking bar and with small piston and end cap; When piston rod 5 is in retracted state, pressurized air enters in the cylinder body via solenoid valve (12YII) and along second direction (II), the manual unlocking bar inserts in the circular groove of piston rod under the effect of Returnning spring, this moment, piston rod kept retracted state under the effect of pressurized air and manual unlocking bar, even this moment, pressurized air was lost, piston rod still can by with the mechanical locking of manual unlocking bar, remain on retracted state; Piston rod is in when stretching out state, pressurized air enters in the cylinder body via solenoid valve (12YI) and along first direction (I), the manual unlocking bar inserts in the circular groove of piston rod under the effect of Returnning spring, this moment, piston rod kept stretching out state under the effect of pressurized air and manual unlocking bar, even this moment, pressurized air was lost, piston rod still can by with the mechanical locking of manual unlocking bar, remain on the state of stretching out.
2. a kind of air driving device that closes the unit with lock according to claim 1 is characterized in that air driving device comprises cylinder body, piston rod, piston, wherein piston and cylinder body socket, and piston rod and piston join.
3. a kind of air driving device that closes the unit with lock according to claim 1, it is characterized in that independently air-path interface of locking unit increase, when pressurized air enters in the locking cell cube by solenoid valve (12YIII), the compressed air-driven small piston also drives the manual unlocking bar, make the manual unlocking bar overcome the active force of Returnning spring and move along third direction (III), make manual unlocking bar and piston rod be in complete disengaged condition, this moment, piston can drive piston rod movement under compressed-air actuated effect.
4. a kind of air driving device that closes the unit with lock according to claim 1 is characterized in that the locking unit is arranged in the rear and front end of air driving device or an end of air driving device.
CN2009102331633A 2009-11-30 2009-11-30 Air driving device with locking unit CN101725590B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009102331633A CN101725590B (en) 2009-11-30 2009-11-30 Air driving device with locking unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009102331633A CN101725590B (en) 2009-11-30 2009-11-30 Air driving device with locking unit

Publications (2)

Publication Number Publication Date
CN101725590A true CN101725590A (en) 2010-06-09
CN101725590B CN101725590B (en) 2011-11-16

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102400973A (en) * 2011-11-18 2012-04-04 三一重工股份有限公司 Hydraulic cylinder
CN103967868A (en) * 2014-05-28 2014-08-06 福建永智机械设备有限公司 Oil cylinder with braking structure
CN104006022A (en) * 2014-05-29 2014-08-27 芜湖市银鸿液压件有限公司 Hydraulic cylinder capable of automatically and mechanically locating lift dam in reciprocating manner
CN104314898A (en) * 2014-09-28 2015-01-28 徐州重型机械有限公司 Crane and single-cylinder plug pin type extension and retraction mechanism hydraulic control system of crane
CN106015170A (en) * 2016-07-18 2016-10-12 中车戚墅堰机车车辆工艺研究所有限公司 Mechanical type automatic locking cylinder
CN106044618A (en) * 2016-06-22 2016-10-26 苏州市盛百威包装设备有限公司 Double-cylinder driving high-bearing logistics packaging platform
CN107304855A (en) * 2017-07-18 2017-10-31 浙江伟光泵阀制造有限公司 A kind of pinion and-rack fuel cylinder driving mechanism with defencive function

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2509362Y (en) * 2001-10-12 2002-09-04 济南华能气动元器件公司 Air cylinder with piston bar self-locking device
CA2380909C (en) * 2002-04-08 2013-04-30 Atomic Energy Of Canada Limited Differential pressure based lock
CN2739394Y (en) * 2004-06-30 2005-11-09 贵阳铝镁设计研究院 Cylinder self-locking device
DE102004059201A1 (en) * 2004-12-09 2006-06-22 Bosch Rexroth Teknik Ab Linear cylinder unit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102400973A (en) * 2011-11-18 2012-04-04 三一重工股份有限公司 Hydraulic cylinder
CN102400973B (en) * 2011-11-18 2015-07-08 北京市三一重机有限公司 Hydraulic cylinder
CN103967868A (en) * 2014-05-28 2014-08-06 福建永智机械设备有限公司 Oil cylinder with braking structure
CN104006022A (en) * 2014-05-29 2014-08-27 芜湖市银鸿液压件有限公司 Hydraulic cylinder capable of automatically and mechanically locating lift dam in reciprocating manner
CN104314898A (en) * 2014-09-28 2015-01-28 徐州重型机械有限公司 Crane and single-cylinder plug pin type extension and retraction mechanism hydraulic control system of crane
CN106044618A (en) * 2016-06-22 2016-10-26 苏州市盛百威包装设备有限公司 Double-cylinder driving high-bearing logistics packaging platform
CN106015170A (en) * 2016-07-18 2016-10-12 中车戚墅堰机车车辆工艺研究所有限公司 Mechanical type automatic locking cylinder
CN106015170B (en) * 2016-07-18 2020-08-11 中车戚墅堰机车车辆工艺研究所有限公司 Mechanical automatic locking cylinder
CN107304855A (en) * 2017-07-18 2017-10-31 浙江伟光泵阀制造有限公司 A kind of pinion and-rack fuel cylinder driving mechanism with defencive function

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