WO2013159381A1 - 安全销 - Google Patents

安全销 Download PDF

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Publication number
WO2013159381A1
WO2013159381A1 PCT/CN2012/075095 CN2012075095W WO2013159381A1 WO 2013159381 A1 WO2013159381 A1 WO 2013159381A1 CN 2012075095 W CN2012075095 W CN 2012075095W WO 2013159381 A1 WO2013159381 A1 WO 2013159381A1
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WO
WIPO (PCT)
Prior art keywords
interface
safety pin
cavity
cylinder
bracket
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Application number
PCT/CN2012/075095
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English (en)
French (fr)
Inventor
郭振华
吴俊豪
林昆贤
蒋运芍
汪永强
李贤德
杨卫兵
齐明虎
陈增宏
雷瑞
Original Assignee
深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US13/510,956 priority Critical patent/US20130285478A1/en
Publication of WO2013159381A1 publication Critical patent/WO2013159381A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/08—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body in connection with the locking of doors, covers, guards, or like members giving access to moving machine parts

Definitions

  • the invention relates to a safety pin, in particular to a safety pin capable of automatically expanding and contracting.
  • the technical problem to be solved by the present invention is to provide a safety pin that does not require manual insertion.
  • a technical solution adopted by the present invention is to provide a safety pin comprising: a cylinder, a first interface and a second interface are disposed at both ends of the cylinder; and a piston is disposed in the cylinder to separate the cylinder into a first cavity and a second cavity, the first interface communicates with the first cavity, the second interface communicates with the second cavity; the pin is fixed to the piston; the compressed air supply device; and a safety pin comprising: a cylinder a first interface and a second interface are disposed on the cylinder; a piston is disposed in the cylinder to divide the cylinder into a first cavity and a second cavity, the first interface is connected to the first cavity, and the second interface is connected to the second cavity a latch fixed to the piston; a compressed air supply device that supplies compressed air to the first cavity through the first interface or compressed air to the second cavity through the second interface to push the piston and the pin to reciprocate in the first direction Move, thereby achieving locking and unlocking between the latch and the
  • the electromagnetic reversing valve connects the third interface to the intake port in the first state, and connects the fourth port to the exhaust port, and the electromagnetic reversing valve connects the third port to the exhaust port in the second state And connect the fourth interface to the intake port.
  • the safety pin further comprises a bracket, and the latch is supported by the bracket. In the first state, the latch extends beyond the bracket in the first direction, thereby locking the device to be locked.
  • the latch in the second state, does not extend beyond the bracket in the first direction, thereby unlocking the device to be locked.
  • the bracket is provided with a through hole, and the plug is inserted through the through hole.
  • a safety pin including: a cylinder having a first interface and a second interface disposed on the cylinder; and a piston disposed in the cylinder to separate the cylinder into the first a cavity and a second cavity, the first interface communicates with the first cavity, the second interface communicates with the second cavity; the pin is fixed to the piston; and the compressed air supply device supplies compressed air to the first space through the first interface The chamber or the compressed air is supplied to the second cavity through the second interface to push the piston and the latch to reciprocate in the first direction, thereby achieving locking and unlocking between the latch and the device to be locked.
  • the safety pin further comprises an electromagnetic reversing valve, the electromagnetic reversing valve is provided with a third interface communicating with the first interface, a fourth interface communicating with the second interface, an intake interface and an exhaust interface, and the intake interface is compressed An air supply device, the electromagnetic reversing valve selectively connecting the third interface and the fourth interface to the intake port and the exhaust port.
  • the electromagnetic reversing valve connects the third interface to the intake port in the first state, and connects the fourth port to the exhaust port, and the electromagnetic reversing valve connects the third port to the exhaust port in the second state And connect the fourth interface to the intake port.
  • the safety pin further comprises a bracket, and the latch is supported by the bracket. In the first state, the latch extends beyond the bracket in the first direction, thereby locking the device to be locked.
  • the latch in the second state, does not extend beyond the bracket in the first direction, thereby unlocking the device to be locked.
  • the bracket is provided with a through hole, and the plug is inserted through the through hole.
  • first interface and the second interface are respectively located at two ends of the cylinder.
  • the cross section of the cylinder is a circular ring shape.
  • the invention has the beneficial effects that: compared with the prior art, the safety pin of the invention is fixed to the piston by a pin, the piston divides the cavity of the cylinder into two, and the compressed air is injected into the cylinder to push the pin to shrink to automatically insert or contract.
  • the function of the safety pin eliminates the safety hazard of manually inserting the safety pin.
  • Figure 1 is a schematic illustration of a first embodiment of a safety pin of the present invention.
  • Fig. 2 is a schematic view showing the application of the safety pin shown in Fig. 1 to lock the device to be locked.
  • FIG. 3 is a schematic view of the apparatus for unlocking a device to be locked by applying the safety pin shown in FIG. 1.
  • Figure 4 is a schematic illustration of a second embodiment of the safety pin of the present invention.
  • Figure 5 is a schematic view of the operation of the electromagnetic reversing valve of the safety pin shown in Figure 4.
  • Fig. 6 is a schematic view showing the application of the safety pin shown in Fig. 4 to lock the device to be locked.
  • Fig. 7 is a schematic view showing the application of the safety pin shown in Fig. 4 to unlock the device to be locked.
  • a safety pin 100 according to a first embodiment of the present invention includes a cylinder 1, a piston 2, a pin 3, and a compressed air supply device 4.
  • the cylinder 1 is provided with a first interface 11 and a second interface 12.
  • the piston 2 is disposed within the cylinder 1 to divide the cylinder 1 into a first cavity 13 and a second cavity 14; the first interface 11 communicates with the first cavity 13, and the second interface 12 communicates with the second cavity 14.
  • the latch 3 is fixed to the piston 2.
  • the compressed air supply device 4 can supply compressed air to the first cavity 13 through the first interface 11 or supply compressed air to the second cavity 14 through the second interface 12 to push the piston 2 and the pin 3 fixed to the piston along the first One direction X reciprocates.
  • the compressed air supply device 4 communicates with the first interface 11, the compressed air is supplied to the first cavity 13, and as the compressed air increases, the piston 2 is pushed to drive the pin 3 in the first direction.
  • the volume of the first cavity 13 becomes larger
  • the volume of the second cavity 14 becomes smaller and the air in the second cavity 14 is discharged from the second interface 12, so that the pin of the cylinder 1 is exposed
  • the length of 3 is increased to lock the device 5 to be locked.
  • the safety pin 100 releases the locked state of the device 5 to be locked as follows: the compressed air supply device 4 communicates with the second interface 12, and the compressed air is supplied to the second cavity 14, with the continuous flow of compressed air. Increased, thereby pushing the piston 2 to drive the latch 3 to move away from the device 5 to be locked in the first direction X, the volume of the second cavity 14 becomes larger, the volume of the first cavity 13 becomes smaller and the air in the first cavity 13 Excluding from the first interface 11, the length of the latch 3 exposing the cylinder 1 is reduced, thereby unlocking the device 5.
  • the first interface 11 and the second interface 12 are provided in the cylinder in the first direction X. end.
  • the cylinder 1 has a circular cross section, that is, the first cavity 13 and the second cavity 14 have a circular cross section, and the piston 2 has a circular cross section.
  • a cavity 13 and a second cavity 14 have a more excellent sealing effect.
  • the safety pin 200 is provided with an electromagnetic reversing valve 6 between the compressed air supply device 4 and the cylinder 1 as compared with the first embodiment safety pin 100.
  • the electromagnetic directional control valve 6 in this embodiment is a two-position four-way electromagnetic directional control valve.
  • the electromagnetic reversing valve 6 includes a third interface 61 that communicates with the first interface 11, a fourth interface 62 that communicates with the second interface 12, an intake port P that connects the compressed air supply device 4, and an exhaust port T.
  • the electromagnetic reversing valve 6 selectively communicates the third port 61 and the fourth port 62 to the intake port P and the exhaust port T.
  • the compressed air supplied from the compressed air supply device 4 is supplied to the cylinder 1 through the electromagnetic reversing valve 6 to control the latch 3 to lock or unlock the device 5 to be locked: when the electromagnetic reversing valve 6 is In the first state N of energization, the latch 4 locks the device 5; when the solenoid-operated valve 6 is in the second state F of power-off, the latch 4 unlocks the device 5.
  • the specific operation process is similar to that of the first embodiment, and details are not described herein again.
  • the second embodiment safety pin 200 further includes a bracket 7.
  • the bracket 7 is provided with a through hole 71, and a portion of the plug 3 from which the cylinder 1 is exposed is bored in the through hole 1 and supported by the bracket 7.
  • the latch 3 In the first state N in which the solenoid-operated valve 6 is energized, the latch 3 extends beyond the bracket 7 in the first direction X, thereby locking the device 5.
  • the latch 3 In the second state in which the electromagnetic reversing valve 6 is de-energized, the latch 3 extends beyond the bracket 7 in the second direction X, thereby releasing the locking of the device 5.
  • bracket 7 The locking of the device 5 by the safety pin 200 is enhanced by the addition of the bracket 7.
  • the above is only one specific embodiment of the bracket 7, and does not constitute a limitation on the bracket 7, for example, the bracket 7 is not provided with the through hole 71, and the portion where the plug 3 exposes the cylinder 1 is located at the top of the bracket 7, and the like.
  • the plug 3 will not exceed the bracket 7 in the first direction X and should not be limited by the above description, as long as the bolt 3 can be in the second state F Unlock device 5.
  • the invention has the beneficial effects that the safety pin of the invention is fixed to the piston by a pin, and the piston divides the cavity of the cylinder into two, and the compressed air is injected into the cylinder to push the pin to shrink to the function of automatically inserting or shrinking the safety pin, thereby eliminating the function.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)

Abstract

一种安全销（100），包括：气缸（1），气缸上设置有第一接口（11）和第二接口（12）；活塞（2），设置在气缸（1）内从而将气缸（1）分隔为连通第一接口（11）的第一空腔（13）和连通第二接口（12）的第二空腔（14）；插销（3），固定至活塞（2）上；压缩空气供给装置（4），供给压缩空气至第一空腔（13）或第二空腔（14）。该安全销（100）采用插销（3）固定至活塞（2），活塞（2）将气缸（1）的空腔一分为二，压缩空气注入气缸（1）中从而推动插销（3）收缩到达自动插设或收缩安全销的功能，消除了人工插设安全销的安全隐患。

Description

安全销
【技术领域】
本发明涉及一种安全销，尤其涉及一种能够自动伸缩的安全销。
【背景技术】
对仅仅依靠伺服电机锁死，而不具有防护功能的自动抱死机构或者安全销的大型设备来说，工作人员进入设备是极其危险的。设备的零部件的旋转、移动等动作结构中，在工作人员进入设备安装或检修过程中，为了零部件的定位或作安全保护，在零部件的旋转、移动结构的某些部位采用人工插置安全销的方式，以起到机械式的硬件保护，防止设备误动作或误操作而对设备和检修人员产生安全事故。
然而，人工插设安全销存在安全隐患，例如，需插设安全销的位置位于悬停的设备下方，安全隐患大大增加。
因此，有必要提供一种安全销，以解决上述问题。
【发明内容】
本发明主要解决的技术问题是提供一种不需要人工插设的安全销。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种安全销，包括：气缸，气缸的两端设置有第一接口和第二接口；活塞，设置在气缸内从而将气缸分隔为第一空腔和第二空腔，第一接口连通第一空腔，第二接口连通第二空腔；插销，固定至活塞上；压缩空气供给装置；提供一种安全销，包括：气缸，气缸上设置有第一接口和第二接口；活塞，设置在气缸内从而将气缸分隔为第一空腔和第二空腔，第一接口连通第一空腔，第二接口连通第二空腔；插销，固定至活塞上；压缩空气供给装置，通过第一接口供给压缩空气至第一空腔，或通过第二接口供给压缩空气至第二空腔，以推送活塞和插销沿第一方向往复移动，进而实现插销与待锁定设备之间的锁定与解锁。
其中，电磁换向阀在第一状态下将第三接口连通至进气接口，并将第四接口连通至排气接口，电磁换向阀在第二状态下将第三接口连通至排气接口，并将第四接口连通至进气接口。
其中，安全销进一步包括支架，插销被支架支撑，在第一状态下，插销在第一方向上超出支架，进而锁定待锁定设备。
其中，在第二状态下，插销在第一方向上不超出支架，进而与待锁定设备解锁。
其中，支架设置有通孔，插销穿设于通孔中。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种安全销，包括：气缸，气缸上设置有第一接口和第二接口；活塞，设置在气缸内从而将气缸分隔为第一空腔和第二空腔，第一接口连通第一空腔，第二接口连通第二空腔；插销，固定至活塞上；压缩空气供给装置，通过第一接口供给压缩空气至第一空腔，或通过第二接口供给压缩空气至第二空腔，以推送活塞和插销沿第一方向往复移动，进而实现插销与待锁定设备之间的锁定与解锁。
其中，安全销进一步包括电磁换向阀，电磁换向阀设置有与第一接口连通的第三接口、与第二接口连通的第四接口、进气接口和排气接口，进气接口连接压缩空气供给装置，电磁换向阀将第三接口和第四接口选择性连通至进气接口以及排气接口。
其中，电磁换向阀在第一状态下将第三接口连通至进气接口，并将第四接口连通至排气接口，电磁换向阀在第二状态下将第三接口连通至排气接口，并将第四接口连通至进气接口。
其中，安全销进一步包括支架，插销被支架支撑，在第一状态下，插销在第一方向上超出支架，进而锁定待锁定设备。
其中，在第二状态下，插销在第一方向上不超出支架，进而与待锁定设备解锁。
其中，支架设置有通孔，插销穿设于通孔中。
其中，第一接口和第二接口分别位于气缸的两端。
其中，气缸的截面是圆环形。
本发明的有益效果是：与现有技术相比，本发明安全销采用插销固定至活塞，活塞将气缸的空腔一分为二，压缩空气注入气缸中从而推动插销收缩到达自动插设或收缩安全销的功能，消除了人工插设安全销的安全隐患。
【附图说明】
图1是本发明安全销的第一实施例的示意图。
图2是应用图1所示安全销锁定待锁定设备的示意图。
图3是应用图1所示安全销解锁待锁定设备的示意图。
图4是本发明安全销的第二实施例的示意图。
图5是图4所示安全销的电磁换向阀工作原理图。
图6是应用图4所示安全销锁定待锁定设备的示意图。
图7是应用图4所示安全销解锁待锁定设备的示意图。
【具体实施方式】
下面结合附图和实施例对本发明进行详细说明。
请参照图1，本发明第一实施例安全销100包括气缸1、活塞2、插销3和压缩空气供给装置4。
气缸1上设置有第一接口11和第二接口12。活塞2设置在气缸1内将气缸1分隔为第一空腔13和第二空腔14；第一接口11连通第一空腔13，第二接口12连通第二空腔14。插销3固定至活塞2上。
压缩空气供给装置4能够通过第一接口11供给压缩空气至第一空腔13，或者通过第二接口12供给压缩空气至第二空腔14，以推动活塞2和固定至活塞的插销3沿第一方向X往复运动。请一并结合图2，当压缩空气供给装置4连通第一接口11，压缩空气被供给至第一空腔13，随着压缩空气的不断增多，从而推动活塞2带动插销3在第一方向X上朝向待锁定设备5运动，第一空腔13的容积变大，第二空腔14的容积变小且第二空腔14中的空气从第二接口12排出，从而使露出气缸1的插销3的长度增加，进而锁定待锁定设备5。
请一并结合图3，安全销100解除待锁定设备5的锁定状态的过程为：压缩空气供给装置4连通第二接口12，压缩空气被供给至第二空腔14，随着压缩空气的不断增多，从而推动活塞2带动插销3在第一方向X上背离待锁定设备5运动，第二空腔14的容积变大，第一空腔13的容积变小且第一空腔13中的空气从第一接口11排除，从而使露出气缸1的插销3的长度减小，进而解除对设备5的锁定。
为了增大插销3在第一方向X上的行程，进而提升采用安全销100锁定设备5的安全性能，优选地，第一接口11和第二接口12设于气缸位于第一方向X上的两端。
本实施例中，优选地，气缸1的截面为圆环形，即第一空腔13和第二空腔14的截面为圆形，活塞2的截面亦为圆形，如此设置，能够得到第一空腔13和第二空腔14更优异的密封效果。
请参照图4，本发明第二实施例安全销200与第一实施例安全销100相比，在压缩空气供给装置4和气缸1之间增设电磁换向阀6。
具体来说，本实施例中的电磁换向阀6是二位四通的电磁换向阀。
电磁换向阀6包括与第一接口11连通的第三接口61、与第二接口12连通的第四接口62、连接压缩空气供给装置4的进气接口P和排气接口T。电磁换向阀6将第三接口61和第四接口62选择性地连通至进气接口P以及排气接口T。
电磁换向阀6的工作原理请一并参照图5。当电磁换向阀6在通电的第一状态N下将第三接口61连通至进气接口P，并将第四接口62连通至排气接口T；当电磁换向阀6在断电的第二状态F下将第三接口61连通至排气接口T，并将第四接口62连通至进气接口P。
请一并参照图6和图7，压缩空气供给装置4供给的压缩空气通过电磁换向阀6供给至气缸1控制插销3锁定或解锁待锁定设备5的过程为：当电磁换向阀6在通电的第一状态N下，插销4锁定设备5；当电磁换向阀6在断电的第二状态F下，插销4解锁设备5。具体动作过程与第一实施例类似，在此不再赘述。
通过在压缩空气供给装置4和气缸1之间连接电磁换向阀6，减少控制插销3在第一方向X上往复运动时压缩空气供给装置4转换连接第一接口11和第二接口12的操作工序，仅需控制电磁换向阀6即可轻松实现安全销200对设备5的锁定和解锁。
请参照图4至图7，第二实施例安全销200进一步包括支架7。支架7设置通孔71，插销3的露出气缸1的部分穿设于通孔1中被支架7支撑。在电磁换向阀6通电的第一状态N下，插销3在第一方向X上超出支架7，进而锁定设备5。在电磁换向阀6断电的第二状态下，插销3在第二方向X上部超出支架7，进而解除对设备5的锁定。
通过增设支架7，加强安全销200对设备5的锁定保障。以上仅是支架7的一个具体实施方式，并不构成对支架7的限制，例如，支架7不设置通孔71，而插销3露出气缸1的部分位于支架7的顶部等等。
同样，电磁换向阀6在断电的第二状态F下，插销3在第一方向X上会不会超出支架7亦不应受到以上描述的局限，只要在第二状态F下插销3能够对设备5解锁即可。
本发明的有益效果是：本发明安全销采用插销固定至活塞，活塞将气缸的空腔一分为二，压缩空气注入气缸中从而推动插销收缩到达自动插设或收缩安全销的功能，消除了人工插设安全销的安全隐患。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (13)

  1. 一种安全销，其中，所述安全销包括：
    气缸，所述气缸的两端设置有第一接口和第二接口；
    活塞，设置在所述气缸内从而将所述气缸分隔为第一空腔和第二空腔，所述第一接口连通所述第一空腔，所述第二接口连通所述第二空腔；
    插销，固定至所述活塞上；
    压缩空气供给装置；
    电磁换向阀，所述电磁换向阀设置有与所述第一接口连通的第三接口、与所述第二接口连通的第四接口、进气接口和排气接口，所述进气接口连接所述压缩空气供给装置，所述电磁换向阀将所述第三接口和所述第四接口选择性连通至所述进气接口以及所述排气接口，以推送所述活塞和所述插销沿第一方向往复移动，进而实现所述插销与待锁定设备之间的锁定与解锁。
  2. 根据权利要求1所述的安全销，其中所述电磁换向阀在第一状态下将所述第三接口连通至所述进气接口，并将所述第四接口连通至所述排气接口，所述电磁换向阀在第二状态下将所述第三接口连通至所述排气接口，并将所述第四接口连通至所述进气接口。
  3. 根据权利要求2所述的安全销，其中所述安全销进一步包括支架，所述插销被所述支架支撑，在所述第一状态下，所述插销在所述第一方向上超出所述支架，进而锁定所述待锁定设备。
  4. 根据权利要求3所述的安全销，其中，在所述第二状态下，所述插销在所述第一方向上不超出所述支架，进而与所述待锁定设备解锁。
  5. 根据权利要求3所述的安全销，其中所述支架设置有通孔，所述插销穿设于所述通孔中。
  6. 一种安全销，其中，所述安全销包括：
    气缸，所述气缸上设置有第一接口和第二接口；
    活塞，设置在所述气缸内从而将所述气缸分隔为第一空腔和第二空腔，所述第一接口连通所述第一空腔，所述第二接口连通所述第二空腔；
    插销，固定至所述活塞上；
    压缩空气供给装置，通过所述第一接口供给压缩空气至所述第一空腔，或通过所述第二接口供给压缩空气至所述第二空腔，以推送所述活塞和所述插销沿第一方向往复移动，进而实现所述插销与待锁定设备之间的锁定与解锁。
  7. 根据权利要求6所述的安全销，其中所述安全销进一步包括电磁换向阀，所述电磁换向阀设置有与所述第一接口连通的第三接口、与所述第二接口连通的第四接口、进气接口和排气接口，所述进气接口连接所述压缩空气供给装置，所述电磁换向阀将所述第三接口和所述第四接口选择性连通至所述进气接口以及所述排气接口。
  8. 根据权利要求7所述的安全销，其中所述电磁换向阀在第一状态下将所述第三接口连通至所述进气接口，并将所述第四接口连通至所述排气接口，所述电磁换向阀在第二状态下将所述第三接口连通至所述排气接口，并将所述第四接口连通至所述进气接口。
  9. 根据权利要求8所述的安全销，其中所述安全销进一步包括支架，所述插销被所述支架支撑，在所述第一状态下，所述插销在所述第一方向上超出所述支架，进而锁定所述待锁定设备。
  10. 根据权利要求9所述的安全销，其中，在所述第二状态下，所述插销在所述第一方向上不超出所述支架，进而与所述待锁定设备解锁。
  11. 根据权利要求9所述的安全销，其中所述支架设置有通孔，所述插销穿设于所述通孔中。
  12. 根据权利要求6所述的安全销，其中所述第一接口和所述第二接口分别位于所述气缸的两端。
  13. 根据权利要求6所述的安全销，其中所述气缸的截面是圆环形。
PCT/CN2012/075095 2012-04-27 2012-05-04 安全销 WO2013159381A1 (zh)

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CN104728590B (zh) * 2013-12-23 2018-02-27 珠海格力电器股份有限公司 安全锁及具有该安全锁的自动化设备
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