CN111682420A - Interlocking device and interlocking switch cabinet that security performance is good - Google Patents
Interlocking device and interlocking switch cabinet that security performance is good Download PDFInfo
- Publication number
- CN111682420A CN111682420A CN202010689036.0A CN202010689036A CN111682420A CN 111682420 A CN111682420 A CN 111682420A CN 202010689036 A CN202010689036 A CN 202010689036A CN 111682420 A CN111682420 A CN 111682420A
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- Prior art keywords
- front door
- interlocking
- hinge
- main body
- bevel gear
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses an interlocking device with good safety performance, which comprises an interlocking device main body and an interlocking control mechanism; the interlocking device comprises an interlocking device main body and a locking device main body, wherein the interlocking device main body comprises a bevel gear mounting seat, a first bevel gear, a second bevel gear, a first connecting shaft, a second connecting shaft, a connecting disc, a third connecting shaft and a mounting area, the first bevel gear and the second bevel gear are mounted inside the bevel gear mounting seat, one end of the first connecting shaft is fixedly connected with the first bevel gear, one end of the second connecting shaft is fixedly connected with the second bevel gear, one side of the connecting disc is fixedly connected with the other end of the second connecting shaft, one end of the; an interlocking switch cabinet comprises a switch cabinet main body, a front door arranged at the front part of the switch cabinet main body, a rear door arranged at the rear part of the switch cabinet main body, an interlocking device main body connected with a front door handle and a rear door handle, and an interlocking control mechanism connected with the interlocking device main body; this interlock and interlocking switch cabinet that security performance is good, the effectual electrified spaced problem of mistake income of solution operating personnel.
Description
Technical Field
The invention belongs to the technical field of switch cabinets, and particularly relates to an interlocking device with good safety performance and an interlocking switch cabinet.
Background
The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. The method is mainly suitable for various occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industrial textile, industrial and mining enterprises, residential districts, high-rise buildings and the like.
The electrical device is movable between a testing position and an operating position. In order to avoid an operator from inadvertently opening the door of the switchgear cabinet when the electrical apparatus is in the operating position, an interlocking mechanism is often used. The interlocking mechanism used at present is complex in structure and not easy to install and maintain. Carry out visual display to the door situation of closing through setting up the display lamp, prevented that the door from not closing the unnecessary injury that the reality caused, through interlock, prevent that the front and back door from opening simultaneously.
Disclosure of Invention
The invention aims to provide an interlocking device and an interlocking switch cabinet with good safety performance, and aims to solve the problem that an operator mistakenly enters a live interval.
In order to achieve the purpose, the invention provides the following technical scheme: an interlocking device with good safety performance comprises an interlocking device main body and an interlocking control mechanism; the interlocking device main body comprises a bevel gear mounting seat, a first bevel gear, a second bevel gear, a first connecting shaft, a second connecting shaft, a connecting disc, a third connecting shaft and a mounting area, wherein the first bevel gear and the second bevel gear are mounted inside the bevel gear mounting seat, one end of the first connecting shaft is fixedly connected with the first bevel gear, one end of the second connecting shaft is fixedly connected with the second bevel gear, one side of the connecting disc is fixedly connected with the other end of the second connecting shaft, one end of the third connecting shaft is fixedly connected with the other side of the connecting disc, and.
The installing zone is cuboid tubular structure, the inside hollow structure that is of installing zone, the side that installing zone and third even axle link to each other is equipped with the opening.
The interlocking control mechanism is arranged in the mounting area; the interlocking control mechanism comprises a first fixed disc, a control wheel, a first control rack, a second control rack, a bolt and a second fixed disc, wherein the first fixed disc is connected with one side of the third connecting shaft, the control wheel is fixedly arranged on the other side of the first fixed disc, the first control rack and the second control rack are matched with the control wheel, the bolt is fixedly connected with the first control rack, and the second fixed disc is used for fixing.
The first control rack comprises a rack which is arranged at the lower end of the first control rack and matched with the control wheel, a limiting block arranged at the middle position, and a fixing area arranged above the limiting block. The fixed area is provided with a plurality of bolt mounting holes. The bolt is provided with a plurality of bolt connecting holes.
The bolt connecting hole and the bolt mounting hole are coaxially arranged, and the bolt and the first control rack are fixed through a screw.
The control wheel is X-shaped, and a first mounting hole and a second mounting hole of the control wheel are formed in the control wheel.
The second fixed disc is provided with a first fixed hole and a second fixed hole; the first fixing hole and the first mounting hole of the control wheel are coaxially arranged, and the second fixing hole and the second mounting hole are coaxially arranged.
And the second control rack is matched with the rack of the control wheel.
Preferably, the first bevel gear and the second bevel gear are vertically installed.
Preferably, the bottom of the mounting area is closed, and the top of the mounting area is open.
Preferably, the third connecting shaft passes through the side edge of the mounting area through an opening to be vertically connected with the interlocking control mechanism.
Preferably, the second fixed disk is connected with the control wheel through a screw, and the first control rack and the second control rack are clamped between the first fixed disk and the second fixed disk.
An interlocking switch cabinet comprises a switch cabinet main body, a front door arranged at the front part of the switch cabinet main body, a rear door arranged at the rear part of the switch cabinet main body, a left side plate arranged at the left side of the switch cabinet main body, a right side plate arranged at the right side of the switch cabinet main body, a top plate arranged at the top part of the switch cabinet main body, a bottom plate arranged at the bottom part of the switch cabinet main body, a front door frame matched with the front door, a rear door frame matched with the rear door, a first hinge and a second hinge arranged at the joint of the front door and the front door frame, a third hinge and a fourth hinge arranged at the joint of the rear door and the rear door frame, metal contacts arranged inside the front door, the front door handle arranged on the front door, a first display lamp arranged above the front door handle, a rear door handle arranged on the front door, a second display lamp arranged above the front door handle, and an interlocking device main body, and the interlocking control mechanism is connected with the interlocking device main body.
The metal contacts comprise a first contact and a second contact.
And a bolt is arranged in the interlocking control mechanism. The interlocking device comprises 2 interlocking device bodies which are respectively connected with a front door handle and a rear door handle, and the number of the interlocking control mechanisms is 2.
Preferably, the first hinge is mounted above the right side of the front door, and the second hinge is mounted below the right side of the front door; the third hinge is arranged above the right side of the rear door, and the fourth hinge is arranged below the right side of the rear door; the first hinge is as high as the third hinge, and the second hinge is as high as the fourth hinge; the height of the front door handle is consistent with that of the first hinge, and the height of the rear door handle is consistent with that of the fourth hinge.
Preferably, the second hinge and the third hinge are provided with bolt holes matched with bolts.
Preferably, there are several first contacts; the number of the second contacts is several.
Preferably, a plurality of first contacts are mounted inside the front door; a plurality of second contacts are arranged in the front door frame and correspond to the first contacts in the front door; a plurality of first contacts are arranged inside the rear door; and a plurality of second contacts are arranged in the rear door frame and correspond to the first contacts in the rear door.
Preferably, the first display lamp and the second display lamp are connected with the inside of the metal contact through wires.
The invention has the technical effects and advantages that: the interlocking device with good safety performance and the interlocking switch cabinet are reliable in interlocking, relatively simple in structure, few in processing parts, easy to assemble, convenient to operate, convenient to overhaul and maintain, less in consumed materials and low in cost. Carry out visual display to the door situation of closing through setting up the display lamp, prevented that the door from not closing the unnecessary injury that the reality caused, through interlock, prevent that the front and back door from opening simultaneously.
Drawings
Fig. 1 is a top view of a switchgear cabinet;
fig. 2 is a schematic view of the front door of the switchgear cabinet;
FIG. 3 is a schematic rear door view of the switchgear cabinet;
fig. 4 is a left side view of the switchgear;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a schematic view of the connection of the front door handle to the interlock;
FIG. 7 is a schematic view of an interlock;
FIG. 8 is a schematic view of the interlock control mechanism connection;
FIG. 9 is a schematic view of an interlock control mechanism;
fig. 10 is a schematic view of the first control rack and the second control rack.
In the figure: 100-switchgear body, 101-front door, 102-front door frame, 103-front door handle, 104-first display light, 105-first hinge, 106-second hinge, 107-rear door, 108-rear door frame, 109-rear door handle, 110-second display light, 111-third hinge, 112-fourth hinge, 113-left side panel, 114-right side panel, 200-metal contact, 201-first contact, 202-second contact, 300-interlock body, 301-bevel gear mount, 302-first coupling shaft, 303-first bevel gear, 304-second bevel gear, 305-second coupling shaft, 306-coupling disc, 307-third coupling shaft, 308-mount area, 400-interlock control mechanism, 401-first fixed disc, 402-control wheel, 403-control wheel first mounting hole, 404-control wheel second mounting hole, 405-second fixed disk, 406-first fixing hole, 407-second fixing hole, 408-first control rack, 409-limiting block, 410-bolt mounting hole, 411-second control rack, 412-bolt, 413-bolt connecting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides an interlock device having good safety performance as shown in fig. 6 to 10, including an interlock device body 300 and an interlock control mechanism 400; the interlocking device main body 300 comprises a bevel gear mounting seat 301, a first bevel gear 303 and a second bevel gear 304 which are mounted inside the bevel gear mounting seat 301, a first connecting shaft 302 with one end fixedly connected with the first bevel gear 303, a second connecting shaft 305 with one end fixedly connected with the second bevel gear 304, a connecting disc 306 with one side fixedly connected with the other end of the second connecting shaft 305, a third connecting shaft 307 with one end fixedly connected with the other side of the connecting disc 306, and a mounting area 308 connected with the other end of the third connecting shaft 307. The first bevel gear 303 and the second bevel gear 304 are vertically installed.
As shown in fig. 6 to 7, the mounting area 308 is a rectangular parallelepiped tubular structure, the inside of the mounting area 308 is a hollow structure, the bottom of the mounting area 308 is closed, the top of the mounting area 308 is open for placing the interlock control mechanism 400, an opening is formed in the side edge of the mounting area 308 connected to the third connecting shaft 307, and the third connecting shaft 307 passes through the opening and is vertically connected to the interlock control mechanism 400 through the side edge of the mounting area 308.
As shown in fig. 7-10, the interlock control mechanism 400 is mounted inside the mounting region 308; the interlocking control mechanism 400 comprises a first fixed disk 401 connected with a third connecting shaft 307 at one side, a control wheel 402 fixedly arranged at the other side of the first fixed disk 401, a first control rack 408 and a second control rack 411 matched with the control wheel 402, a bolt 412 fixedly connected with the first control rack 408, and a second fixed disk 405 for fixing.
The first control rack 408 includes a rack disposed at the lower end of the first control rack 408 and matched with the control wheel 402, a limiting block 409 disposed at the middle position, and a fixing area disposed above the limiting block 409. The fixing area is provided with a plurality of bolt 412 and mounting holes 410. The plug 412 defines a plurality of plug connection holes 413.
The plug pin connection hole 413 is coaxially disposed with the plug pin 412 mounting hole 410, and the plug pin 412 is fixed to the first control rack 408 by a screw.
As shown in fig. 7-10, the control wheel 402 is "X" shaped, and the control wheel 402 is opened with a first control wheel mounting hole 403 and a second control wheel mounting hole 404.
The second fixing plate 405 is provided with a first fixing hole 406 and a second fixing hole 407; the first fixing hole 406 and the first control wheel mounting hole 403 are coaxially arranged, and the second fixing hole 407 and the second control wheel mounting hole 404 are coaxially arranged.
The second control rack 411 is a rack that matches the control wheel 402.
As shown in fig. 7 to 10, the second fixing plate 405 is connected to the control wheel 402 by screws, and the first control rack 408 and the second control rack 411 are clamped between the first fixing plate 401 and the second fixing plate 405.
The third connecting shaft 307 has one end connected to the connecting disc 306 and the other end connected to the first fixing disc 401 through the side of the mounting area 308.
An interlocking switchgear shown in fig. 1 to 5 includes a switchgear main body 100, a front door 101 installed at a front portion of the switchgear main body 100, a rear door 107 installed at a rear portion of the switchgear main body 100, a left side panel 113 installed at a left side of the switchgear main body 100, a right side panel 114 installed at a right side of the switchgear main body 100, a top panel installed at a top portion of the switchgear main body 100, a bottom panel installed at a bottom portion of the switchgear main body 100, a front door frame 102 matched with the front door 101, a rear door frame 108 matched with the rear door 107, first and second hinges 105 and 106 provided at a connection portion of the front door 101 and the front door frame 102, third and fourth hinges 111 and 112 provided at a connection portion of the rear door 107 and the rear door frame 108, metal contacts 200 provided inside the front door 101, the front door frame 102, the rear door 107, and the rear door frame 108, a front door handle 103 provided on the front door 101, a first display lamp 104 provided, a rear door handle 109 provided on the front door 101, a second indicator lamp 110 provided above the front door handle 103, an interlock device body 300 connected to the front door handle 103 and the rear door handle 109, and an interlock control mechanism 400 connected to the interlock device body 300.
A plug pin 412 is arranged inside the interlocking control mechanism 400. There are 2 interlock device bodies 300 connected to the front door handle 103 and the rear door handle 109, respectively, and there are 2 interlock control mechanisms 400.
As shown in fig. 4-5, the metal contacts 200 include a first contact 201, a second contact 202. A plurality of the first contacts 201; there are several of the second contacts 202.
As shown in fig. 1-3, the first hinge 105 is mounted above the right side of the front door 101, and the second hinge 106 is mounted below the right side of the front door 101; the third hinge 111 is mounted above the right side of the rear door 107, and the fourth hinge 112 is mounted below the right side of the rear door 107; the first hinge 105 and the third hinge 111 are the same in height, and the second hinge 106 and the fourth hinge 112 are the same in height; the front door handle 103 is as high as the first hinge 105, and the rear door handle 109 is as high as the fourth hinge 112.
The second hinge 106 and the third hinge 111 are provided with bolt holes matched with the bolts 412, and the bolts 412 are inserted into the bolt holes to lock the front door 107 and the rear door 107.
A plurality of first contacts 201 are arranged in the front door 101; a plurality of second contacts 202 are arranged in the front door frame 102 and correspond to the first contacts 201 in the front door 101; a plurality of first contacts 201 are arranged in the rear door 107; a plurality of second contacts 202 are arranged in the rear door frame 108 corresponding to the first contacts 201 in the rear door 107.
The first display lamp 104 and the second display lamp 110 are connected to the inside of the metal contact 200 by wires.
The working principle is as follows: when the first contact 201 in the front door 101 is contacted with the second contact 202 in the front door frame 102 in use, namely the front door 101 is closed, the first display lamp 104 is green, and when the first contact 201 in the front door 101 is disconnected with the second contact 202 in the front door frame 102, namely the front door 101 is opened, the first display lamp 104 is red.
The second display lamp 110 is green when the first contact 201 of the rear door 107 is in contact with the second contact 202 of the rear door frame 108, i.e., when the rear door 107 is closed, and the second display lamp 110 is red when the first contact 201 of the rear door 107 is disconnected from the second contact 202 of the rear door frame 108, i.e., when the rear door 107 is opened. The state of the current door 101 can be clearly known through the first display lamp 104 and the second display lamp 110, the door is prevented from being completely closed, when the front door 101 is opened, the front door handle 103 is rotated, the first connecting shaft 302 connected with the front door handle 103 rotates at the same time, the first bevel gear 303 is driven to rotate, the first bevel gear 303 drives the second bevel gear 304 to rotate, the first connecting shaft 302, the second connecting shaft 305 and the third connecting shaft 307 are driven at the same time, the third connecting shaft 307 drives the first fixed disk 401 in the interlocking control mechanism 400 and the control wheel 402 fixed on the first fixed disk 401 to rotate, the first control rack 408 and the second control rack 411 in the interlocking control mechanism 400 move outwards along with the rotation of the control wheel 402, and the bolt 412 penetrates through a bolt hole in the third hinge 111 to lock the rear door 107, so as to prevent the rear door 107 from being opened by mistake; when the back door 107 is opened, the back door handle 109 is rotated, the first connecting shaft 302 connected with the back door handle 109 rotates at the same time, the first bevel gear 303 is driven to rotate, the first bevel gear 303 drives the second bevel gear 304 to rotate, the first connecting shaft 302, the second connecting shaft 305 and the third connecting shaft 307 are driven at the same time, the third connecting shaft 307 drives the first fixed disk 401 in the interlocking control mechanism 400 and the control wheel 402 fixed on the first fixed disk 401 to rotate, the first control rack 408 and the second control rack 411 in the interlocking control mechanism 400 move outwards along with the rotation of the control wheel 402, and the bolt 412 penetrates through the bolt hole in the second hinge 106 to lock the front door 101, so that the front door 101 is prevented from being opened mistakenly.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. The interlocking device with good safety performance is characterized in that: comprises an interlock device body (300) and an interlock control mechanism (400); the interlocking device main body (300) comprises a bevel gear mounting seat (301), a first bevel gear (303) and a second bevel gear (304) which are mounted inside the bevel gear mounting seat (301), a first connecting shaft (302) with one end fixedly connected with the first bevel gear (303), a second connecting shaft (305) with one end fixedly connected with the second bevel gear (304), a connecting disc (306) with one side fixedly connected with the other end of the second connecting shaft (305), a third connecting shaft (307) with one end fixedly connected with the other side of the connecting disc (306), and a mounting area (308) connected with the other end of the third connecting shaft (307); the first bevel gear (303) and the second bevel gear (304) are vertically arranged;
the interlocking control mechanism (400) is arranged in the mounting area (308); the interlocking control mechanism (400) comprises a first fixed disc (401) connected with a third connecting shaft (307) at one side, a control wheel (402) fixedly mounted at the other side of the first fixed disc (401), a first control rack (408) and a second control rack (411) matched with the control wheel (402), a bolt (412) fixedly connected with the first control rack (408), and a second fixed disc (405) for fixing.
2. An interlocking cubical switchboard which characterized in that: a front door (101) arranged at the front part of a switch cabinet main body (100), a rear door (107) arranged at the rear part of the switch cabinet main body (100), a left side plate (113) arranged at the left side of the switch cabinet main body (100), a right side plate (114) arranged at the right side of the switch cabinet main body (100), a top plate arranged at the top part of the switch cabinet main body (100), a bottom plate arranged at the bottom part of the switch cabinet main body (100), a front door frame (102) matched with the front door (101), a rear door frame (108) matched with the rear door (107), a first hinge (105) and a second hinge (106) arranged at the joint of the front door (101) and the front door frame (102), a third hinge (111) and a fourth hinge (112) arranged at the joint of the rear door (107) and the rear door frame (108), and metal contacts (200) arranged inside the front door (101), the front door frame (102), the rear, a front door handle (103) arranged on a front door (101), a first display lamp (104) arranged above the front door handle (103), a rear door handle (109) arranged on the front door (101), a second display lamp (110) arranged above the front door handle (103), an interlocking device main body (300) connected with the front door handle (103) and the rear door handle (109), and an interlocking control mechanism (400) connected with the interlocking device main body (300);
the metal contact (200) comprises a first contact (201) and a second contact (202).
3. The safety interlock of claim 1, wherein: installing zone (308) is cuboid tubular structure, installing zone (308) inside is hollow structure, installing zone (308) bottom is sealed, installing zone (308) open-top, the side that installing zone (308) link axle (307) with the third is equipped with the opening, axle (307) link to each other through the opening the side that installing zone (308) were passed to the third links with interlocking control mechanism (400) and links to each other perpendicularly.
4. The safety interlock of claim 1, wherein: the control wheel (402) is X-shaped, and a first control wheel mounting hole (403) and a second control wheel mounting hole (404) are formed in the control wheel (402); the second fixed disc (405) is provided with a first fixed hole (406) and a second fixed hole (407); the first fixing hole (406) and the control wheel first mounting hole (403) are coaxially arranged, and the second fixing hole (407) and the control wheel second mounting hole (404) are coaxially arranged.
5. The safety interlock of claim 1, wherein: the first control rack (408) comprises a rack which is arranged at the lower end of the first control rack (408) and matched with the control wheel (402), a limiting block (409) arranged at the middle position, and a fixing area arranged above the limiting block (409); the fixing area is provided with a plurality of bolt (412) mounting holes (410); the bolt (412) is provided with a plurality of bolt connecting holes (413); the bolt connecting hole (413) and the bolt (412) mounting hole (410) are coaxially arranged, and the bolt (412) and the first control rack (408) are fixed through screws;
the second control rack (411) is matched with the control wheel (402); the second fixed disc (405) is connected with the control wheel (402) through screws.
6. The interlocking switch cabinet according to claim 2, characterized in that: a bolt (412) is arranged in the interlocking control mechanism (400); the interlocking device comprises 2 interlocking device main bodies (300) which are respectively connected with a front door handle (103) and a rear door handle (109), and 2 interlocking control mechanisms (400); the second hinge (106) and the third hinge (111) are provided with bolt holes matched with the bolts (412).
7. The interlocking switch cabinet according to claim 2, characterized in that: the first hinge (105) is arranged above the right side of the front door (101), and the second hinge (106) is arranged below the right side of the front door (101); the third hinge (111) is arranged above the right side of the rear door (107), and the fourth hinge (112) is arranged below the right side of the rear door (107); the first hinge (105) is as high as the third hinge (111), and the second hinge (106) is as high as the fourth hinge (112); the height of the front door handle (103) is consistent with that of the first hinge (105), and the height of the rear door handle (109) is consistent with that of the fourth hinge (112).
8. The interlocking switch cabinet according to claim 2, characterized in that: a plurality of first contacts (201); a plurality of second contacts (202); a plurality of first contacts (201) are arranged in the front door (101); a plurality of second contacts (202) are arranged in the front door frame (102) and correspond to the first contacts (201) in the front door (101); a plurality of first contacts (201) are arranged in the rear door (107); and a plurality of second contacts (202) are arranged in the rear door frame (108) and at positions corresponding to the first contacts (201) in the rear door (107).
9. The interlocking switch cabinet according to claim 2, characterized in that: the first display lamp (104) and the second display lamp (110) are connected with the interior of the metal contact (200) through wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010689036.0A CN111682420A (en) | 2020-07-16 | 2020-07-16 | Interlocking device and interlocking switch cabinet that security performance is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010689036.0A CN111682420A (en) | 2020-07-16 | 2020-07-16 | Interlocking device and interlocking switch cabinet that security performance is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111682420A true CN111682420A (en) | 2020-09-18 |
Family
ID=72457749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010689036.0A Pending CN111682420A (en) | 2020-07-16 | 2020-07-16 | Interlocking device and interlocking switch cabinet that security performance is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111682420A (en) |
-
2020
- 2020-07-16 CN CN202010689036.0A patent/CN111682420A/en active Pending
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