CN107437468B - Manual operation safety device of isolating switch - Google Patents
Manual operation safety device of isolating switch Download PDFInfo
- Publication number
- CN107437468B CN107437468B CN201710693780.6A CN201710693780A CN107437468B CN 107437468 B CN107437468 B CN 107437468B CN 201710693780 A CN201710693780 A CN 201710693780A CN 107437468 B CN107437468 B CN 107437468B
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- Prior art keywords
- steel plate
- base
- transmission gear
- guide transmission
- holes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H2003/323—Driving mechanisms, i.e. for transmitting driving force to the contacts the mechanisms being adjustable
Landscapes
- Breakers (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to a manual operation safety device of an isolating switch, which comprises a base, a guide transmission gear, a sliding positioning block, four stroke adjusting bolts and an operating rod, wherein the guide transmission gear is hollow inside; the base is arranged on the door frame through a support, the base is of an annular structure consisting of a first steel plate and a second steel plate, the guide transmission gear penetrates through two through holes in the base and is arranged on the base, one end of the guide transmission gear extends out of the base, the outer surface of the guide transmission gear, which is positioned in the base, is a threaded surface, and two symmetrically arranged U-shaped grooves are formed in the outer surface of the guide transmission gear, which is positioned outside the base; the middle part of the sliding positioning block is provided with an opening and is sleeved on a thread surface of the guide transmission gear in the base, and the sliding positioning block can move back and forth along with the guide transmission gear; the four stroke adjusting bolts can move back and forth and are arranged on the second steel plate in a penetrating manner; the operating rod comprises an operating handle, an inserting end and a connecting piece for connecting the operating handle and the inserting end. The invention has simple structure, convenient assembly and high reliability.
Description
Technical Field
The invention relates to the technical field of low-voltage distribution equipment, in particular to a manual operation safety device of an isolating switch.
Background
With the wide application of the switch cabinet in the power system, people mainly have higher and higher requirements for the switch cabinet and personal safety guarantee, and the requirement of preventing mistakenly entering into the electrified interval in the switch cabinet is particularly important.
At present, an isolation switch in a direct current switch cabinet is operated by mainly using electric operation and manually using auxiliary operation; when the electric operating mechanism breaks down, the isolating switch needs to be manually switched on and off; in China, most of the cabinet doors are opened, and an iron rod is inserted into the cabinet to penetrate into an operation hole of an isolating switch for operation; the length of the operating rod is 700mm, the distance between the switch operating hole and the door opening is 500mm, the operating rod is not easy to align with the operating hole, and the fault cannot be quickly and effectively processed; when the cabinet door is operated, the operating mechanism is easily damaged without left-right positioning and stroke positioning, and meanwhile, when an operator opens the cabinet door for operation, electric shock can be caused, so that potential danger exists.
Disclosure of Invention
The invention aims to provide a disconnecting switch manual operation safety device which is simple in structure, convenient to assemble and high in reliability.
In order to achieve the purpose, the technical scheme of the invention is as follows:
isolator manual operation safety device, safety device includes:
the base is arranged on the door frame through a support, the base is of an annular structure consisting of a first steel plate and a second steel plate, the first steel plate is U-shaped, and the second steel plate is arranged on the opening end of the first steel plate through a positioning steel pin; through holes are formed in the second steel plate and one side face of the first steel plate, which is symmetrical to the second steel plate;
the guide transmission gear penetrates through the two through holes in the base and is installed on the base, one end of the guide transmission gear extends out of the inside of the base, the outer surface of the guide transmission gear, which is positioned in the base, is a threaded surface, and two symmetrically arranged U-shaped grooves are formed in the outer surface of the guide transmission gear, which is positioned outside the base;
the sliding positioning block is provided with an opening in the middle and is sleeved on a thread surface of the guide transmission gear in the base, and the sliding positioning block can move back and forth along with the guide transmission gear;
the four stroke adjusting bolts can move back and forth and penetrate through the second steel plate, and the length of the stroke adjusting bolts is used for controlling the stroke of the sliding positioning block to move back and forth;
the operating rod comprises an operating handle, an insertion end and a connecting piece for connecting the operating handle and the insertion end, wherein the end of the insertion end is provided with a groove, the insertion end is provided with a through hole penetrating through the insertion end, and a steel pin is arranged in the through hole; during installation, the insertion end penetrates through the door frame and the guide transmission gear in sequence to extend into the isolating switch operating mechanism and is finally fixed through the groove, and the steel pin on the insertion end is clamped in the U-shaped groove of the guide transmission gear.
In one embodiment of the invention, six holes are formed in the upper surface and the lower surface of the first steel plate, wherein four holes are matched with the bracket and fixed on the door frame through bolts; two holes are respectively formed in the upper end face and the lower end face of the second steel plate, when the second steel plate is installed, the holes in the upper end face and the lower end face of the second steel plate and the unused holes in the upper surface and the lower surface of the first steel plate are arranged in an up-and-down symmetrical mode, and finally the second steel plate is installed and fixed through bolts.
In one embodiment of the invention, the door frame is provided with a connecting port, the operating rod penetrates through the connecting port and the guide transmission gear to extend into the isolating switch operating mechanism, a long waist hole is formed above the connecting port, the connecting port is opened and closed through an isolating switch baffle plate, one end of the isolating switch baffle plate is provided with a shifting block, and the shifting block is movably arranged in the long waist hole in an up-and-down mode.
In one embodiment of the invention, gaps are left between the upper and lower surfaces of the slide locating block and the base.
Through the technical scheme, the invention has the beneficial effects that:
the invention has simple structure, convenient assembly and high reliability, can carry out closing and opening operation on the isolating switch through the operation hole on the door frame on the premise of not opening the cabinet door frame, improves the safety, prevents operators from being affected by electric shock and external environment (for example, passage personnel need to give way when walking and the standing is unstable due to the interference of things on the ground), eliminates the defects of uneven operation force, over-head or not-in-place operation, avoids the damage of the isolating switch mechanism and solves the capability of rapidly processing fault problems.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a portion of a manually operated safety device for an isolating switch;
FIG. 2 is a schematic left front view of the door frame with the isolating switch manually operated safety device handle not inserted;
FIG. 3 is a left rear structural view of the door frame with the handle of the manually operated safety device of the disconnector inserted therein;
FIG. 4 is a side view of the installation of the isolating switch manually operated safety device handle with the door frame inserted;
FIG. 5 is a schematic view of the operating lever;
the corresponding part names indicated by the numbers and letters in the drawings:
100. the device comprises a base 110, a first steel plate 120, a second steel plate 130, a hole 200, a guide transmission gear 210, a threaded surface 220, a U-shaped groove 230, a positioning steel pin 300, a sliding positioning block 400, a stroke adjusting bolt 500, an operating rod 510, an operating handle 520, an insertion end 521, a groove 522, a steel pin 530, a connecting piece 700, a support 800, a door frame 810, a connecting port 820, a long waist hole 830, an isolating switch baffle 840, a shifting block 900 and an isolating switch operating mechanism.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 1 to 5, the present invention discloses a safety device for a manual operation of an isolator, which includes a base 100, a guide driving gear 200 having a hollow inside, a slide positioning block 300, four stroke adjustment bolts 400, and an operating lever 500.
The base 100 is mounted on the door frame 800 through the bracket 700, the base 100 is a ring structure composed of a first steel plate 110 and a second steel plate 120, the first steel plate 110 is U-shaped, and the second steel plate 120 is mounted on the open end of the first steel plate 110 through the positioning steel pin 230; six holes 130 are formed in the upper surface and the lower surface of the first steel plate 110, wherein four holes are matched with the bracket and fixed on the door frame 800 through bolts to play a role in fixing the base 100; two holes 130 are respectively formed in the upper end face and the lower end face of the second steel plate 120, when the second steel plate 120 is installed, the holes 130 in the upper end face and the lower end face of the second steel plate 120 and the unused holes 130 in the upper surface and the lower surface of the first steel plate 110 are symmetrically arranged up and down, and finally, the holes are installed and fixed through positioning steel pins 230 to form the base 100; through holes (not shown) are formed in the second steel plate 120 and one side surface of the first steel plate 110, which is symmetrical to the second steel plate 120, and the four stroke adjusting bolts 400 can be arranged on the second steel plate 120 in a penetrating manner in a back-and-forth movement manner, and the back-and-forth movement stroke of the sliding positioning block 300 is controlled by the length of the stroke adjusting bolts 400.
The guide transmission gear 200 is installed on the base 100 through the left and right through holes of the base 100, and one end thereof protrudes from the inside of the base to face the door frame 800; the outer surface of the guide transmission gear 200 in the base 100 is a threaded surface 210, and two symmetrically arranged U-shaped grooves 200 are arranged on the outer surface of one end of the guide transmission gear 200 outside the base; the sliding positioning block 300 is square, the size of the sliding positioning block is slightly smaller than the inner hole of the base, the middle part of the sliding positioning block is opened, the sliding positioning block 300 is sleeved on the thread surface 210 of the guide transmission gear 200 in the base, the sliding positioning block 300 can move back and forth along with the guide transmission gear 200, the guide transmission gear 200 and the sliding positioning block 300 are matched to form the opening and closing stroke positioning of the isolating switch, and the upper, lower, left and right positioning is realized during.
The operating lever 500 comprises an operating handle 510, an inserting end 520 and a connecting piece 530 for connecting the operating handle and the inserting end, wherein the end of the inserting end 520 is provided with a groove 521, the inserting end 520 is provided with a through hole penetrating through the inserting end, and a steel pin 522 is arranged in the through hole; the door frame 800 is provided with a connecting port 810, the connecting port 810 is communicated with the hollow part of the guide transmission gear 200, and the operating rod 500 can quickly and effectively extend into the isolating switch operating mechanism 900; the operating rod 500 passes through the connecting port 810 and the guide transmission gear 200 to extend into the disconnecting switch operating mechanism 900, and is finally fixed through the groove 521, the steel pin 522 on the insertion end 520 is clamped in the U-shaped groove 220 of the guide transmission gear 200, so that the disconnecting switch is separated and combined, and the safety device hole is aligned with the disconnecting switch operating hole; a long waist hole 820 is arranged above the connecting port 810, the connecting port 810 is opened and closed through an isolating switch baffle 830, a shifting block 840 is arranged at one end of the isolating switch baffle 830, and the shifting block 840 can be vertically and movably arranged in the long waist hole 820.
When the isolating switch is opened and closed, the isolating switch baffle plate 830 is pulled up through the shifting block 840 on the door frame 800 (when the isolating switch baffle plate 830 normally operates, the isolating switch baffle plate 830 covers the connecting port 810 on the door frame 800 to meet the protection grade of the shell IP4X), when the operating rod 500 is inserted, the steel pin 522 just falls into the U-shaped groove 220 of the guide transmission gear 200, the operation handle 510 is rotated to drive the guide transmission gear 200 to rotate, the rotation of the guide transmission gear 200 enables the sliding positioning block 300 to move left or right until the isolating switch is opened and closed in place, at the moment, the sliding positioning block 300 just contacts with the stroke adjusting bolt 400, as the middle surface of the guide transmission gear 200 is in a thread shape, the whole operation process is uniformly stressed, and meanwhile, considering that each isolating switch opening and closing stroke has certain errors, at the stroke can be adjusted through the stroke adjusting bolt 400, the isolating switch is opened and closed, The safety of the operating mechanism can be ensured without considering the weight of the operating force.
The manual opening and closing of the isolating switch can be realized through the structure, so that the assembly process of the device is simplified, the manufacturing cost of the switch cabinet is reduced, and the reliability of manual operation is improved; and when the door frame is closed, the disconnecting switch can be switched on and off, so that the condition that the electrified interval is prevented from being mistakenly entered in the 'five-prevention' requirement can be effectively prevented, and the personal safety of maintainers is ensured.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. Isolator manually operation safety device, its characterized in that, safety device includes:
the base is arranged on the door frame through a support, the base is of an annular structure consisting of a first steel plate and a second steel plate, the first steel plate is U-shaped, and the second steel plate is arranged on the opening end of the first steel plate through a positioning steel pin; through holes are formed in the second steel plate and one side face of the first steel plate, which is symmetrical to the second steel plate;
the guide transmission gear penetrates through the two through holes in the base and is installed on the base, one end of the guide transmission gear extends out of the inside of the base, the outer surface of the guide transmission gear, which is positioned in the base, is a threaded surface, and two symmetrically arranged U-shaped grooves are formed in the outer surface of the guide transmission gear, which is positioned outside the base;
the sliding positioning block is provided with an opening in the middle and is sleeved on a thread surface of the guide transmission gear in the base, and the sliding positioning block can move back and forth along with the guide transmission gear;
the four stroke adjusting bolts can move back and forth and penetrate through the second steel plate, and the length of the stroke adjusting bolts is used for controlling the stroke of the sliding positioning block to move back and forth;
the operating rod comprises an operating handle, an insertion end and a connecting piece for connecting the operating handle and the insertion end, wherein the end of the insertion end is provided with a groove, the insertion end is provided with a through hole penetrating through the insertion end, and a steel pin is arranged in the through hole; during installation, the insertion end sequentially penetrates through the door frame and the guide transmission gear to extend into the isolating switch operating mechanism and is finally fixed through the groove, and the steel pin on the insertion end is clamped in the U-shaped groove of the guide transmission gear;
the door frame is provided with a connecting port, the operating rod penetrates through the connecting port and the guide transmission gear to extend into the isolating switch operating mechanism, a long waist hole is formed above the connecting port, the connecting port is opened and closed through an isolating switch baffle, one end of the isolating switch baffle is provided with a shifting block, and the shifting block can be installed in the long waist hole in an up-and-down mode.
2. The manual operation safety device of the isolating switch according to claim 1, wherein six holes are formed in the upper surface and the lower surface of the first steel plate, and four holes are matched with the bracket and fixed on the door frame through bolts; two holes are respectively formed in the upper end face and the lower end face of the second steel plate, when the second steel plate is installed, the holes in the upper end face of the second steel plate and the unused holes in the upper face of the first steel plate are arranged in an up-down symmetrical mode, the holes in the lower end face of the second steel plate and the unused holes in the lower face of the first steel plate are arranged in an up-down symmetrical mode, and finally the second steel plate is installed and fixed through the positioning steel pins.
3. The manual safety device of claim 1, wherein the upper and lower surfaces of the slide locating block are spaced from the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693780.6A CN107437468B (en) | 2017-08-14 | 2017-08-14 | Manual operation safety device of isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693780.6A CN107437468B (en) | 2017-08-14 | 2017-08-14 | Manual operation safety device of isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107437468A CN107437468A (en) | 2017-12-05 |
| CN107437468B true CN107437468B (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710693780.6A Active CN107437468B (en) | 2017-08-14 | 2017-08-14 | Manual operation safety device of isolating switch |
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| Country | Link |
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| CN (1) | CN107437468B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191709Y (en) * | 2008-04-01 | 2009-02-04 | 上海天灵开关厂有限公司 | Electric switch cabinet operating mechanism |
| CN102751128A (en) * | 2012-07-02 | 2012-10-24 | 镇江市丹高电器有限公司 | Indoor high-voltage isolating switch interlocking device |
| CN202977194U (en) * | 2012-12-05 | 2013-06-05 | 甘肃容和矿用设备集团有限公司 | Isolation commutation switch operation mechanism |
| EP2874253A1 (en) * | 2013-11-11 | 2015-05-20 | Rockwell Automation Technologies, Inc. | Circuit breaker position adjustment system |
| CN205406373U (en) * | 2016-03-07 | 2016-07-27 | 广州白云电器设备股份有限公司 | Can effectively prevent stop gear of three -station isolation switch maloperation |
| CN206225234U (en) * | 2016-12-12 | 2017-06-06 | 上海华欣民福自控设备有限公司 | A kind of universal switch operating mechanism |
| CN207302894U (en) * | 2017-08-14 | 2018-05-01 | 上海广电电气(集团)股份有限公司 | Disconnecting switch is manually operated safety device |
-
2017
- 2017-08-14 CN CN201710693780.6A patent/CN107437468B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201191709Y (en) * | 2008-04-01 | 2009-02-04 | 上海天灵开关厂有限公司 | Electric switch cabinet operating mechanism |
| CN102751128A (en) * | 2012-07-02 | 2012-10-24 | 镇江市丹高电器有限公司 | Indoor high-voltage isolating switch interlocking device |
| CN202977194U (en) * | 2012-12-05 | 2013-06-05 | 甘肃容和矿用设备集团有限公司 | Isolation commutation switch operation mechanism |
| EP2874253A1 (en) * | 2013-11-11 | 2015-05-20 | Rockwell Automation Technologies, Inc. | Circuit breaker position adjustment system |
| CN205406373U (en) * | 2016-03-07 | 2016-07-27 | 广州白云电器设备股份有限公司 | Can effectively prevent stop gear of three -station isolation switch maloperation |
| CN206225234U (en) * | 2016-12-12 | 2017-06-06 | 上海华欣民福自控设备有限公司 | A kind of universal switch operating mechanism |
| CN207302894U (en) * | 2017-08-14 | 2018-05-01 | 上海广电电气(集团)股份有限公司 | Disconnecting switch is manually operated safety device |
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| Publication number | Publication date |
|---|---|
| CN107437468A (en) | 2017-12-05 |
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