CN103277363B - Rectilinear motion self-locking device - Google Patents

Rectilinear motion self-locking device Download PDF

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Publication number
CN103277363B
CN103277363B CN201310244157.4A CN201310244157A CN103277363B CN 103277363 B CN103277363 B CN 103277363B CN 201310244157 A CN201310244157 A CN 201310244157A CN 103277363 B CN103277363 B CN 103277363B
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lock dog
piston
rectilinear motion
locking device
locking bar
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CN201310244157.4A
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CN103277363A (en
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黄振华
黄飞
江民中
曾庆锋
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Shenzhen Playfun Culture & Technology Inc
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Shenzhen Playfun Culture & Technology Inc
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Abstract

The invention provides a kind of rectilinear motion self-locking device, comprise cylinder body, terraced tooth locking bar, piston core, lock dog, in described cylinder body, be provided with piston channel, described piston core is positioned at described piston channel and described piston core promotes to slide up and down at described piston channel by air pressure, and described piston channel two ends are respectively provided with respectively an air supply opening; In the time that described piston core is oppressed described lock dog afterbody, thereby described lock dog rotates and described lock dog head is embedded complete the locking to described terraced tooth locking bar in described stepped tooth; In the time that described piston core is not oppressed described lock dog afterbody, thereby described resetting-mechanism rotates described lock dog to be resetted and described lock dog head is departed from described stepped tooth, complete the release to described terraced tooth locking bar. The invention has the beneficial effects as follows by lock dog and lock, load-bearing is large, safe and reliable, simple in structure, low cost of manufacture; Carry out the locking and unlocking control with pneumatic, control simple and conveniently, be applicable to extensive popularization.

Description

Rectilinear motion self-locking device
Technical field
The present invention relates to plant equipment field, relate in particular to rectilinear motion self-locking device.
Background technology
Along with the rise of cultural industry, domestic various entertainment selections develop rapidly, and various recreation facilities emerge in an endless stream. Elevator stage, as the pith of recreation facility, becomes common visitor's carrier. Stage is all generally vertical displacement movement, in order to ensure safety, stage is generally all with self-locking safety device, but existingly generally rely on band-type brake to brake to realize from lock technology, this mode self-locking has friction and produces, and causes the self-locking lost of life, poor safety performance, self-locking is unreliable, is prone to accidents.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of rectilinear motion self-locking device.
The invention provides a kind of rectilinear motion self-locking device, comprise cylinder body, terraced tooth locking bar, piston core, lock dog, described cylinder body is provided with through hole, described terraced tooth locking bar is positioned at the through hole of described cylinder body, stretch out from the through hole two ends of described cylinder body respectively at described terraced tooth locking bar two ends, and described terraced tooth locking bar can slide up and down in the through hole of described cylinder body; In described cylinder body, be provided with piston channel, described piston core is positioned at described piston channel and described piston core promotes to slide up and down at described piston channel by air pressure, and described piston channel two ends are respectively provided with respectively an air supply opening; Described lock dog can rotate in described cylinder body, and described terraced tooth locking bar outer surface is provided with stepped tooth, and this rectilinear motion self-locking device also comprises the resetting-mechanism that described lock dog is resetted; In the time that described piston core is oppressed described lock dog afterbody, thereby described lock dog rotates and described lock dog head is embedded complete the locking to described terraced tooth locking bar in described stepped tooth; In the time that described piston core is not oppressed described lock dog afterbody, thereby described resetting-mechanism rotates described lock dog to be resetted and described lock dog head is departed from described stepped tooth, complete the release to described terraced tooth locking bar.
As a further improvement on the present invention, described piston core is made up of the piston crown being connected successively, piston connecting portion, piston root, and described piston connecting portion is provided with groove; In the time that described piston core is not oppressed described lock dog afterbody, described lock dog afterbody is positioned at the groove of described piston connecting portion.
As a further improvement on the present invention, described piston crown outer surface is set with the first sealing ring, and described the first sealing ring outer surface is that hermetic seal coordinates with described piston channel inner surface; Described piston root outer surface is set with the second sealing ring, and described the second sealing ring outer surface is that hermetic seal coordinates with described piston channel inner surface.
As a further improvement on the present invention, described cylinder body comprises cylinder head, center lock body, cylinder sleeve, described through hole is opened in described cylinder head inside, described center lock body is arranged in described cylinder head, described lock dog is arranged on the lock body of described center and described lock dog can rotate on the lock body of described center, and described resetting-mechanism is arranged on the lock body of described center; Described cylinder head outer surface is provided with described cylinder sleeve, and the gap between described cylinder head outer surface and described inner surface of cylinder liner forms described piston channel.
As a further improvement on the present invention, described the first sealing ring is at least two, and described the second sealing ring is at least two.
As a further improvement on the present invention, described resetting-mechanism torsion spring pin, torsion spring, described torsion spring pin is arranged on the lock body of described center, and described torsion spring is arranged on described torsion spring pin, and described torsion spring props up described lock dog head.
As a further improvement on the present invention, this rectilinear motion self-locking device also comprises rotating shaft, and described lock dog is arranged in described rotating shaft, and described rotating shaft can be rotated on the lock body of described center.
As a further improvement on the present invention, terraced tooth locking bar outer surface part has multiple annular stepped tooths.
As a further improvement on the present invention, described lock dog is fish head member.
The invention has the beneficial effects as follows: the present invention locks by lock dog, load-bearing is large, safe and reliable, simple in structure, low cost of manufacture; Carry out the locking and unlocking control with pneumatic, control simple and conveniently, be applicable to extensive popularization, the present invention can be widely used in the self-locking of stage class recreation facility.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present invention.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the cross-sectional view of the present invention under released state.
Fig. 4 is the cross-sectional view of the present invention under lock-out state.
Detailed description of the invention
As depicted in figs. 1 and 2, the invention discloses a kind of rectilinear motion self-locking device, comprise cylinder body, terraced tooth locking bar 12, piston core 8, lock dog 6, described cylinder body is provided with through hole, described terraced tooth locking bar 12 is positioned at the through hole of described cylinder body, stretch out from the through hole two ends of described cylinder body respectively at described terraced tooth locking bar 12 two ends, and described terraced tooth locking bar 12 can slide up and down in the through hole of described cylinder body; In described cylinder body, be provided with piston channel, described piston core 8 is positioned at described piston channel and described piston core 8 promotes to slide up and down at described piston channel by air pressure, and described piston channel two ends are respectively provided with respectively an air supply opening; Described lock dog 6 can rotate in described cylinder body, and described terraced tooth locking bar 12 outer surfaces are provided with stepped tooth, and this rectilinear motion self-locking device also comprises the resetting-mechanism that described lock dog 6 is resetted; In the time that described piston core 8 is oppressed described lock dog 6 afterbody, thereby described lock dog 6 rotates and described lock dog 6 heads is embedded in described stepped tooth, complete the locking to described terraced tooth locking bar 12; In the time that described piston core 8 is not oppressed described lock dog 6 afterbody, thereby described resetting-mechanism rotates described lock dog 6 to be resetted and described lock dog 6 heads is departed from described stepped tooth, complete the release to described terraced tooth locking bar 12.
Described piston core 8 is made up of the piston crown 81 being connected successively, piston connecting portion 82, piston root 83, and described piston connecting portion 82 is provided with groove; In the time that described piston core 8 is not oppressed described lock dog 6 afterbody, described lock dog 6 afterbodys are positioned at the groove of described piston connecting portion 82.
Described piston crown 81 outer surfaces are set with the first sealing ring, and described the first sealing ring outer surface is that hermetic seal coordinates with described piston channel inner surface; Described piston root 83 outer surfaces are set with the second sealing ring 9, and described the second sealing ring 9 outer surfaces are that hermetic seal coordinates with described piston channel inner surface.
Described cylinder body comprises cylinder head 1, center lock body 2, cylinder sleeve 7, described through hole is opened in described cylinder head 1 inside, described center lock body 2 is arranged in described cylinder head 1, described lock dog 6 is arranged on described center lock body 2 and described lock dog 6 can rotate on described center lock body 2, and described resetting-mechanism is arranged on described center lock body 2; Described cylinder head 1 outer surface is provided with described cylinder sleeve 7, and the gap between described cylinder head 1 outer surface and described cylinder sleeve 7 inner surfaces forms described piston channel.
Described the first sealing ring is at least two, and described the second sealing ring 9 is at least two.
Described resetting-mechanism torsion spring pin 4, torsion spring 3, described torsion spring pin 4 is arranged on described center lock body 2, and described torsion spring 3 is arranged on described torsion spring pin 3, and described torsion spring 3 props up described lock dog 6 heads.
This rectilinear motion self-locking device also comprises rotating shaft 5, and described lock dog 6 is arranged in described rotating shaft 5, and described rotating shaft 5 can be rotated on described center lock body 2.
Ladder tooth locking bar 12 outer surface parts have multiple annular stepped tooths.
Described lock dog 6 is fish head member, and the present invention also comprises M8 screw mandrel 11.
As shown in Figure 3, in the time of inferior part of the cylinder block air feed, piston core 8 moves to cylinder body top, and now this rectilinear motion self-locking device is in released state, and lock dog 6 lock dog 6 heads under torsion spring 3 effects are downward. As shown in Figure 4; in the time of the air feed of cylinder body top, piston core 8 moves to inferior part of the cylinder block, oppresses lock dog 6 tail down campaigns by piston core 8; lock dog 6 heads embed in stepped tooth so; now straight line self-locking telecontrol equipment is in the lock state, and the activity of lock dog 6 is obstructed, and lock dog 6 heads prop up cylinder bar stepped tooth; ladder tooth locking bar 12 can not down move; be that terraced tooth locking bar 12 is locked, prevent that the equipment of carrying from moving down, play locking protective effect.
Be provided with altogether in the present invention four lock dogs 6 and jointly terraced tooth locking bar 12 carried out to the locking and unlocking, in the present invention, also comprise four piston cores 8 that coordinate respectively with four lock dogs 6, four piston channels, four resetting-mechanisms.
The present invention locks by lock dog 6, and load-bearing is large, safe and reliable, simple in structure, low cost of manufacture; Carry out the locking and unlocking control with pneumatic, control simple and conveniently, be applicable to extensive popularization, the present invention can be widely used in the self-locking of stage class recreation facility.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations. For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (8)

1. a rectilinear motion self-locking device, it is characterized in that: comprise cylinder body, terraced tooth locking bar (12), piston core (8), lock dog (6), described cylinder body is provided with through hole, described terraced tooth locking bar (12) is positioned at the through hole of described cylinder body, stretch out from the through hole two ends of described cylinder body respectively at described terraced tooth locking bar (12) two ends, and described terraced tooth locking bar (12) can slide up and down in the through hole of described cylinder body; In described cylinder body, be provided with piston channel, described piston core (8) is positioned at described piston channel and described piston core (8) promotes to slide up and down at described piston channel by air pressure, and described piston channel two ends are respectively provided with respectively an air supply opening; Described lock dog (6) can rotate in described cylinder body, and described terraced tooth locking bar (12) outer surface is provided with stepped tooth, and this rectilinear motion self-locking device also comprises the resetting-mechanism that described lock dog (6) is resetted; In the time that described piston core (8) is oppressed described lock dog (6) afterbody, described lock dog (6) rotate make described lock dog (6) thus head embeds and completes the locking to described terraced tooth locking bar (12) in described stepped tooth; In the time that described piston core (8) is not oppressed described lock dog (6) afterbody, described resetting-mechanism rotates described lock dog (6) to reset to make described lock dog (6) thereby head departs from and completes the release to described terraced tooth locking bar (12) in described stepped tooth; Described piston core (8) is made up of the piston crown being connected successively (81), piston connecting portion (82), piston root (83), and described piston connecting portion (82) is provided with groove; In the time that described piston core (8) is not oppressed described lock dog (6) afterbody, described lock dog (6) afterbody is positioned at the groove of described piston connecting portion (82).
2. rectilinear motion self-locking device according to claim 1, is characterized in that: described piston crown (81) outer surface is set with the first sealing ring, and described the first sealing ring outer surface is that hermetic seal coordinates with described piston channel inner surface; Described piston root (83) outer surface is set with the second sealing ring (9), and described the second sealing ring (9) outer surface is that hermetic seal coordinates with described piston channel inner surface.
3. rectilinear motion self-locking device according to claim 2, it is characterized in that: described cylinder body comprises cylinder head (1), center lock body (2), cylinder sleeve (7), described through hole is opened in described cylinder head (1) inside, described center lock body (2) is arranged in described cylinder head (1), described lock dog (6) is arranged on described center lock body (2) above and described lock dog (6) can rotate on described center lock body (2), and described resetting-mechanism is arranged on described center lock body (2); Described cylinder head (1) outer surface is provided with described cylinder sleeve (7), and the gap between described cylinder head (1) outer surface and described cylinder sleeve (7) inner surface forms described piston channel.
4. rectilinear motion self-locking device according to claim 3, is characterized in that: described the first sealing ring is at least two, and described the second sealing ring (9) is at least two.
5. rectilinear motion self-locking device according to claim 4, it is characterized in that: described resetting-mechanism torsion spring pin (4), torsion spring (3), described torsion spring pin (4) is arranged on described center lock body (2), it is upper that described torsion spring (3) is arranged on described torsion spring pin (4), and described torsion spring (3) props up described lock dog (6) head.
6. rectilinear motion self-locking device according to claim 5, it is characterized in that: this rectilinear motion self-locking device also comprises rotating shaft (5), it is upper that described lock dog (6) is arranged on described rotating shaft (5), and described rotating shaft (5) can be rotated on described center lock body (2).
7. rectilinear motion self-locking device according to claim 6, is characterized in that: terraced tooth locking bar (12) outer surface part has multiple annular stepped tooths.
8. rectilinear motion self-locking device according to claim 7, is characterized in that: described lock dog (6) is fish head member.
CN201310244157.4A 2013-06-19 2013-06-19 Rectilinear motion self-locking device Active CN103277363B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104632781B (en) * 2014-12-26 2017-02-01 徐州重型机械有限公司 Expanding oil cylinder, super-lifting device, crane and method
CN105363591B (en) * 2015-12-02 2018-05-25 绿田机械股份有限公司 With rotatable and latch functions giants
CN115415068B (en) * 2022-08-26 2024-05-17 力奇有限公司 Water pistols

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB698780A (en) * 1950-11-29 1953-10-21 Sulzer Ag Improvements relating to actuator mechanisms
US3757650A (en) * 1972-02-22 1973-09-11 Laval Turbine Reciprocatory fluid actuated motor having a rack and pinion piston locking mechanism
CN1203533A (en) * 1995-12-05 1998-12-30 贝林格尔·英格海姆国际有限公司 Locking mechanism for spring-actuated device
US5868060A (en) * 1994-01-24 1999-02-09 Speed Shore Corp. Quick-release cam lock
CN201636112U (en) * 2009-12-21 2010-11-17 江苏高精机电装备有限公司 Special self-locking linear cylinder
CN203404158U (en) * 2013-06-19 2014-01-22 深圳市普乐方文化科技有限公司 Linear motion self-lock device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB698780A (en) * 1950-11-29 1953-10-21 Sulzer Ag Improvements relating to actuator mechanisms
US3757650A (en) * 1972-02-22 1973-09-11 Laval Turbine Reciprocatory fluid actuated motor having a rack and pinion piston locking mechanism
US5868060A (en) * 1994-01-24 1999-02-09 Speed Shore Corp. Quick-release cam lock
CN1203533A (en) * 1995-12-05 1998-12-30 贝林格尔·英格海姆国际有限公司 Locking mechanism for spring-actuated device
CN201636112U (en) * 2009-12-21 2010-11-17 江苏高精机电装备有限公司 Special self-locking linear cylinder
CN203404158U (en) * 2013-06-19 2014-01-22 深圳市普乐方文化科技有限公司 Linear motion self-lock device

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Denomination of invention: Linear motion self-locking device

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