CN211479892U - Explosion-proof switch locking device - Google Patents
Explosion-proof switch locking device Download PDFInfo
- Publication number
- CN211479892U CN211479892U CN202020569057.4U CN202020569057U CN211479892U CN 211479892 U CN211479892 U CN 211479892U CN 202020569057 U CN202020569057 U CN 202020569057U CN 211479892 U CN211479892 U CN 211479892U
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- locking
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- disc
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model aims to provide an explosion-proof switch locking device, which comprises a locking shell, a locking rod, a lock core and a key, wherein the lock core is fixedly arranged in the locking shell and comprises a lock core shell, a linkage rod, a rotating disc, a gear, a reset magnet and a locking magnet, the linkage rod is rotationally connected to the lock cylinder shell, one end of the linkage rod is fixedly connected with the rotating disc, the other end of the linkage rod is fixedly connected with the gear, the lock cylinder shell is provided with a pore channel, the bottom of the pore channel is fixedly provided with a reset magnet, a locking magnet is movably arranged in the pore channel, the reset magnet is homopolar and opposite to the locking magnet, the inner side surface of the rotating disc is provided with two locking holes, the sections of the locking holes and the pore channel are, the key comprises a disc, a trigger magnet is fixedly connected to the inner side of the disc, and the trigger magnet is opposite to the locking magnet in homopolar. The explosion-proof switch has good locking safety and can effectively avoid the problems of power transmission and uncovering of workers without authorization.
Description
Technical Field
The utility model belongs to explosion-proof equipment field in the pit especially relates to an explosion-proof switch blocking device.
Background
The explosion-proof switch is a commonly used safety device in the pit, mainly used for switching on or off the power supply in the pit, in order to guarantee that the safety has regulation in item 445 of the coal mine safety code: "all-switch locking device must be able to reliably prevent unauthorized power transmission, unauthorized opening operation, and switch handle must be locked when the power supply is cut off". The existing common explosion-proof switch can be opened by using tools such as a screwdriver, a pair of hand pliers and the like, the safety is low, the effects of preventing unauthorized power transmission and opening the cover without authorization are achieved, and great hidden danger is brought to underground safety management.
Disclosure of Invention
An object of the utility model is to provide an explosion-proof switch blocking device, this explosion-proof switch closes the lock security good, can effectively avoid the workman to authorize the problem of power transmission, uncapping.
In order to achieve the above purpose, the technical scheme of the utility model is that: an explosion-proof switch locking device comprises a locking shell, a locking rod, a key and a lock cylinder,
a lock cylinder installation cavity is arranged in the locking shell, an opening of the lock cylinder installation cavity is positioned on the wall of the locking shell,
the lock core is fixedly arranged in the lock core mounting cavity and comprises a lock core shell, a linkage rod, a rotating disc, a gear, a reset magnet and a locking magnet, wherein the linkage rod is rotatably connected to the lock core shell, two ends of the linkage rod penetrate through the lock core shell, one end of the linkage rod is fixedly connected with the rotating disc, the other end of the linkage rod is fixedly connected with the gear, a hole channel is formed in the lock core shell, the axis direction of the hole channel is the same as the axis direction of the linkage rod, the reset magnet is fixedly arranged at the bottom of the hole channel, the locking magnet is movably arranged in the hole channel, the reset magnet is homopolar and opposite to the locking magnet, two locking holes are formed in the inner side surface of the rotating disc, the locking holes are the same as the cross section,
the locking rod is a straight rod, two ends of the straight rod extend out of the locking shell, a rack is arranged on the straight rod along the axial direction and is matched with the gear,
the key comprises a disc, wherein one side of the disc is provided with a positioning hole, the positioning hole is matched with a locking lug of the rotating disc and used for driving the rotating disc, the inner side of the disc is fixedly connected with a trigger magnet, the trigger magnet is positioned on the outer side of the positioning hole and corresponds to a lock cylinder pore passage, and the trigger magnet and the locking magnet are opposite in homopolar.
The rotating disc is positioned on the opening side of the lock cylinder mounting cavity, and the gear is positioned in the locking shell.
The outer side surface of the trigger magnet is flush with the disc surface.
The disc is fixedly connected with a handle.
When the gear is positioned at the end part of the rack, the end part of the locking rod at the same side as the end part of the rack is positioned in the locking shell.
The axes of the linkage rod and the locking rod are vertical.
The magnetic force of the trigger magnet is stronger than that of the reset magnet.
The utility model discloses simple structure, convenient to use must adopt dedicated key could open blocking device, has guaranteed the power consumption safety, effectively prevents that the workman from not according to the problem of safety regulation expert at the break-make.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the connection between the gear and the locking rod of the present invention.
Detailed Description
As shown in fig. 1 and 2, the explosion-proof switch locking device comprises a locking shell 1, a locking rod 2, a key 9 and a lock cylinder,
a lock core installation cavity is arranged in the locking shell 1, an opening of the lock core installation cavity is positioned on the wall of the locking shell,
the lock core is fixedly arranged in a lock core mounting cavity and comprises a lock core shell 8, a linkage rod 3, a rotating disc 7, a gear 6, a reset magnet 4 and a locking magnet 5, wherein the linkage rod 3 is rotatably arranged in the lock core shell 8 through a bearing fixed in the lock core shell 8, two ends of the linkage rod penetrate through the lock core shell 8, one end of the linkage rod 3 is fixedly connected with the circle center of the rotating disc 7, the other end of the linkage rod is fixedly connected with the gear 6, the rotating disc 7 is positioned at the opening side of the lock core mounting cavity, the gear 6 is positioned in the locking shell 1, a pore channel is arranged on the lock core shell 8, the axial direction of the pore channel is the same as the axial direction of the linkage rod and is positioned at the upper side of the shaft stem 3, the reset magnet 4 is fixedly arranged at the bottom of the pore channel, the locking magnet 5 is movably arranged in the pore channel, the reset magnet, the locking holes are the same as the cross section of the pore canal and are correspondingly arranged, the depth of the locking holes is less than the length of the locking magnet 5, the middle part of the outer side of the rotating disc 7 is provided with a hexagonal locking lug,
the locking rod 2 is a straight rod arranged on the locking shell, two ends of the straight rod extend out of the locking shell, a rack is arranged on the straight rod along the axis direction and matched with the gear 6, when the gear is located at the end part of the rack, the end part of the locking rod on the same side as the end part of the rack is located in the locking shell, and the axis of the linkage rod is perpendicular to that of the locking rod.
The key 9 comprises a disc, wherein a hexagonal positioning hole is formed in one side of the disc, a handle is arranged on the other side of the disc, the positioning hole is matched with a rotating disc locking lug and used for driving the rotating disc, a trigger magnet 10 is fixedly connected to the inner side of the disc, the trigger magnet 10 is located on the outer side of the positioning hole and corresponds to a lock cylinder hole channel, the trigger magnet is opposite to the locking magnet in the same polarity, the outer side face of the trigger magnet is flush with the disc surface, and the magnetic force of the trigger magnet is stronger than that.
When the locking device is used, when the switch handle needs to be locked, the key 9 is placed on the rotating disc 7, the positioning hole is matched with the locking lug of the rotating disc, the trigger magnet 10 is aligned with the locking magnet 5, under the magnetic action of like poles repelling each other, the acting force between the trigger magnet 10 and the locking magnet 5 is larger than the acting force between the reset magnet 4 and the locking magnet 5, the locking magnet 5 moves towards the reset magnet 4 along the lock hole, leaves the lock hole in the rotating disc, and the rotating disc is unlocked. Then the gear 6 is rotated by turning the turn disc 7 with the key and then the locking lever is driven to move. When the locking rod moves to the locking position, another locking hole is formed in the corresponding position on the rotating disc 7, and after the key is pulled out, the locking magnet 5 enters the locking hole in the rotating disc 7 under the magnetic force action of the reset magnet 4 to lock the rotating disc, so that the locking rod is locked. When the switch is powered on and the switch door needs to be locked, the operation steps are the same, and then the rotating disc is rotated in the opposite direction.
In order to increase the safety of the locking device, a plurality of groups of magnet locking devices can be added in the lock cylinder, and magnets are arranged at corresponding positions of the key.
Claims (7)
1. An explosion-proof switch blocking device which is characterized in that: comprises a locking shell, a locking rod, a key and a lock core,
a lock cylinder installation cavity is arranged in the locking shell, an opening of the lock cylinder installation cavity is positioned on the wall of the locking shell,
the lock core is fixedly arranged in the lock core mounting cavity and comprises a lock core shell, a linkage rod, a rotating disc, a gear, a reset magnet and a locking magnet, wherein the linkage rod is rotatably connected to the lock core shell, two ends of the linkage rod penetrate through the lock core shell, one end of the linkage rod is fixedly connected with the rotating disc, the other end of the linkage rod is fixedly connected with the gear, a hole channel is formed in the lock core shell, the axis direction of the hole channel is the same as the axis direction of the linkage rod, the reset magnet is fixedly arranged at the bottom of the hole channel, the locking magnet is movably arranged in the hole channel, the reset magnet is homopolar and opposite to the locking magnet, two locking holes are formed in the inner side surface of the rotating disc, the locking holes are the same as the cross section,
the locking rod is a straight rod, two ends of the straight rod extend out of the locking shell, a rack is arranged on the straight rod along the axial direction and is matched with the gear,
the key comprises a disc, wherein one side of the disc is provided with a positioning hole, the positioning hole is matched with a locking lug of the rotating disc and used for driving the rotating disc, the inner side of the disc is fixedly connected with a trigger magnet, the trigger magnet is positioned on the outer side of the positioning hole and corresponds to a lock cylinder pore passage, and the trigger magnet and the locking magnet are opposite in homopolar.
2. An explosion proof switch latch as defined in claim 1 wherein: the rotating disc is positioned on the opening side of the lock cylinder mounting cavity, and the gear is positioned in the locking shell.
3. An explosion proof switch latch as defined in claim 1 wherein: the outer side surface of the trigger magnet is flush with the disc surface.
4. An explosion proof switch latch as defined in claim 1 wherein: the disc is fixedly connected with a handle.
5. An explosion proof switch latch as defined in claim 1 wherein: when the gear is positioned at the end part of the rack, the end part of the locking rod at the same side as the end part of the rack is positioned in the locking shell.
6. An explosion proof switch latch as defined in claim 1 wherein: the axes of the linkage rod and the locking rod are vertical.
7. An explosion proof switch latch as defined in claim 1 wherein: the magnetic force of the trigger magnet is stronger than that of the reset magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020569057.4U CN211479892U (en) | 2020-04-16 | 2020-04-16 | Explosion-proof switch locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020569057.4U CN211479892U (en) | 2020-04-16 | 2020-04-16 | Explosion-proof switch locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211479892U true CN211479892U (en) | 2020-09-11 |
Family
ID=72372445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020569057.4U Active CN211479892U (en) | 2020-04-16 | 2020-04-16 | Explosion-proof switch locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211479892U (en) |
-
2020
- 2020-04-16 CN CN202020569057.4U patent/CN211479892U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |