CN107154317B - Locking structure and low-voltage contact box with same - Google Patents
Locking structure and low-voltage contact box with same Download PDFInfo
- Publication number
- CN107154317B CN107154317B CN201710497158.8A CN201710497158A CN107154317B CN 107154317 B CN107154317 B CN 107154317B CN 201710497158 A CN201710497158 A CN 201710497158A CN 107154317 B CN107154317 B CN 107154317B
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- China
- Prior art keywords
- handle
- assembly
- isolating
- locking rod
- breaker
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Breakers (AREA)
Abstract
The invention discloses a locking structure and a low-voltage communication box with the same. The latching structure includes: the isolating switch-off component comprises an isolating switch handle assembly and an isolating lock disc, and two locking holes are formed in the isolating lock disc; the isolating switch handle assembly comprises a handle end and a connecting end, the handle end is positioned on one side of the isolating lock disc, the connecting end is positioned on the other side of the isolating lock disc, and the connecting end is used for being connected with the isolating switch; the circuit breaker mechanism comprises a support, a circuit breaker handle component, a transmission mechanism component and a locking rod, wherein the support is arranged in the box body, and the circuit breaker handle component, the transmission mechanism component and the locking rod are respectively connected with the support; the breaker handle assembly is connected with the transmission mechanism assembly; the drive mechanism component is connected with the locking rod. The locking structure of this application has realized the operation shutting relation between isolator and the circuit breaker from mechanical structure, plays the function of preventing maloperation when equipment stops the power transmission.
Description
Technical Field
The invention relates to the technical field of low-voltage contact boxes, in particular to a locking structure and a low-voltage contact box with the same.
Background
The low pressure contact case is salvageed the use as "coal changes electricity" platform district power supply, is applied to two district contact between the feed, when any one of them platform district has a power failure, can regard as the contact switch with the contact case, is its power supply by another platform district, or inserts the emergent end of power-generating cars in the contact case, for trouble platform district emergency power supply.
The low-voltage connection box is composed of an isolating switch, a molded case circuit breaker, a copper bar and the like. Isolator and moulded case circuit breaker use as the liaison between two district feeds, and the misoperation appears in deciliter isolator and circuit breaker order probably to appear the staff in current mortgage contact box to lead to dangerous the emergence.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
It is an object of the present invention to provide a latch arrangement which overcomes or at least alleviates at least one of the above-mentioned disadvantages of the prior art.
In order to achieve the above object, the present invention provides a locking structure for a low voltage connection box, where the low voltage connection box includes a box body, and a disconnecting switch and a circuit breaker arranged in the box body, and the locking structure includes: the isolating and switching-off mechanism comprises an isolating switch handle assembly and an isolating lock disc which is connected with the isolating switch handle assembly in a follow-up manner, wherein two locking holes are formed in the isolating lock disc; the isolating switch handle assembly comprises a handle end and a connecting end, the handle end is positioned on one side of the isolating lock disc, the connecting end is positioned on the other side of the isolating lock disc, and the connecting end is used for being connected with an isolating switch; the circuit breaker mechanism comprises a bracket, a circuit breaker handle component, a transmission mechanism component and a locking rod, wherein the bracket is arranged in the box body, and the circuit breaker handle component, the transmission mechanism component and the locking rod are respectively connected with the bracket; the breaker handle assembly is connected with the transmission mechanism assembly; the transmission mechanism component is connected with the locking rod; the isolating switch handle assembly can rotate so as to drive the isolating switch to be opened and closed and the isolating lock disc to rotate, and the isolating lock disc rotates so as to have a first position and a second position; the circuit breaker handle assembly is movable to move the latching lever via a transmission assembly to provide the latching lever with an open position and a latched position; said locking rod adapted to be inserted into a locking hole in said separator lock housing when said locking rod is in a locked position and said separator lock housing is in a first position; said locking rod adapted to be inserted into another locking hole in said separator lock housing when said locking rod is in a locked position and said separator lock housing is in a second position; in the open position, the locking rod is retracted preventing interference with the rotation of the isolation lock disk.
Preferably, the isolator lock disk is provided with one or more viewing ports.
Preferably, the handle end comprises: a handle located on one side of the isolator lock disk; the connection end includes: the connecting disc is positioned on the other side of the isolating lock disc and is connected with the handle; and one end of the square shaft is connected with the connecting disc, and the other end of the square shaft is connected with the isolating switch.
Preferably, the isolator handle assembly further comprises a handle pad disposed between the handle and the isolator lock disk.
Preferably, the inside of the bracket is hollow, one surface of the bracket is provided with a hole, the breaker handle assembly and the transmission mechanism assembly are arranged in the bracket, and at least part of the breaker handle assembly penetrates through the hole in the bracket; and a hole for the locking rod to pass through is formed in the side surface of the bracket.
Preferably, the circuit breaker handle assembly includes a circuit breaker handle and a handle sleeve, the handle sleeve with the support is connected, the circuit breaker handle with the handle sleeve is articulated.
Preferably, the transmission mechanism assembly comprises a universal joint assembly and a connecting piece, one end of the universal joint assembly is connected with the handle sleeve, and the other end of the universal joint assembly is connected with one end of the connecting piece; the other end of the connecting piece is connected with the locking rod.
The application still provides a low pressure contact case, low pressure contact case includes the box and sets up isolator and the circuit breaker in the box, low pressure contact case further includes as above the shutting structure.
The locking structure of this application has realized the operation shutting relation between isolator and the circuit breaker from mechanical structure through the cooperation of isolation switch machine component and circuit breaker machine component, has played the function of preventing maloperation when equipment stops the power transmission, has guaranteed the safe operation of equipment, has also guaranteed the personal safety simultaneously.
Drawings
Fig. 1 is a schematic structural view of a latch structure according to an embodiment of the present invention provided in a low-voltage interconnection box.
Figure 2 is a schematic view of the disconnecting switch member in the latching arrangement of figure 1.
Fig. 3 is a schematic view of the structure of the breaker mechanism components in the lockout structure shown in fig. 1.
Reference numerals
| 1 | Isolating |
111 | Handle (CN) |
| 11 | Disconnecting |
112 | Connecting |
| 12 | |
113 | |
| 13 | |
114 | |
| 2 | Circuit |
221 | |
| 21 | |
222 | |
| 22 | Circuit |
231 | |
| 23 | Transmission mechanism assembly | 232 | |
| 24 | |
||
| 121 | Viewing port |
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. 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. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Fig. 1 is a schematic structural view of a latch structure according to an embodiment of the present invention. Figure 2 is a schematic view of the disconnecting switch member in the latching arrangement of figure 1. Fig. 3 is a schematic view of the structure of the breaker mechanism components in the lockout structure shown in fig. 1.
The low-voltage connection box comprises a box body, and an isolating switch and a circuit breaker which are arranged in the box body.
The locking structure shown in fig. 1 is used for a low-voltage communication box, and comprises an isolating switch component 1 and a breaker component 2, wherein the isolating switch component 1 comprises an isolating switch handle assembly 11 and an isolating lock disc 12 which is in follow-up connection with the isolating switch handle assembly 11, and two locking holes 13 are formed in the isolating lock disc 12; the isolating switch handle assembly 11 comprises a handle end and a connecting end, the handle end is positioned on one side of the isolating lock disc, the connecting end is positioned on the other side of the isolating lock disc, and the connecting end is used for being connected with the isolating switch; the breaker mechanism component 2 comprises a bracket 21, a breaker handle assembly 22, a transmission mechanism assembly 23 and a locking rod 24, wherein the bracket 21 is arranged in the box body, and the breaker handle assembly 22, the transmission mechanism assembly 23 and the locking rod 24 are respectively connected with the bracket 21; the breaker handle assembly 22 is connected with the transmission mechanism assembly 23; the transmission mechanism assembly 23 is connected with the locking rod 24; the isolating switch handle assembly can rotate so as to drive the isolating switch to be opened and closed and the isolating lock disc to rotate, and the isolating lock disc rotates so as to have a first position and a second position; the circuit breaker handle component can move, so that the locking rod is driven to move through the transmission mechanism component, and the locking rod is provided with an opening position and a locking position; the locking rod is adapted to be inserted into a locking hole in the isolating lock plate when the locking rod is in the locking position and the isolating lock plate is in the first position; the locking rod is suitable for being inserted into another locking hole on the isolating lock disc when the locking rod is located at the locking position and the isolating lock disc is located at the second position; in the open position, the locking rod is retracted preventing interference with the rotation of the separator lock disk.
The locking structure of this application has realized the operation shutting relation between isolator and the circuit breaker from mechanical structure through the cooperation of isolation switch machine component and circuit breaker machine component, has played the function of preventing maloperation when equipment stops the power transmission, has guaranteed the safe operation of equipment, has also guaranteed the personal safety simultaneously.
Referring to fig. 1 and 2, in the present embodiment, the isolator lock disk 12 is provided with one or more viewing ports 121. The condition of the isolating switch behind the isolating lock disc can be observed through the observation port.
Referring to fig. 1, in the present embodiment, the handle end includes: a handle 111, the handle 111 being located on one side of the insulating lock disk 12.
The connecting end comprises a connecting disc 112 and a square shaft 113, and the connecting disc 112 is positioned at the other side of the isolating lock disc 12 and is connected with the handle 111; one end of the square shaft 113 is connected to the connection pad 112, and the other end is connected to the disconnecting switch.
Referring to fig. 1, in the present embodiment, the disconnecting switch handle assembly 11 further includes a handle pad 114, and the handle pad 114 is disposed between the handle 111 and the disconnecting lock disk 12.
The provision of a handle pad reduces frictional damage between the handle 111 and the insulating lock collar.
In the embodiment, the support 21 is hollow and has an opening on one surface, the breaker handle assembly 11 and the transmission mechanism assembly 23 are arranged in the support, and at least part of the breaker handle assembly penetrates through the hole on the support; the side surface of the bracket is provided with a hole for the locking rod to pass through.
Referring to fig. 2, in the present embodiment, the breaker handle assembly 22 includes a breaker handle 221 and a handle sleeve 222, the handle sleeve 222 is connected to the support 21, and the breaker handle 221 is hinged to the handle sleeve 222.
In this embodiment, the transmission mechanism assembly 23 includes a universal joint assembly 231 and a connecting piece 232, one end of the universal joint assembly 231 is connected with the handle sleeve 222, and the other end is connected with one end of the connecting piece 232; the other end of the connecting piece 232 is connected to the locking lever 24.
The application still provides a low pressure contact case, and low pressure contact case includes the box and sets up isolator and the circuit breaker in the box, low pressure contact case further includes as above the shutting structure.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. The utility model provides a shutting structure for low pressure contact box, low pressure contact box includes the box and sets up isolator and circuit breaker in the box, its characterized in that, shutting structure includes:
the isolating switch machine component (1) comprises an isolating switch handle assembly (11) and an isolating lock disc (12) which is connected with the isolating switch handle assembly (11) in a follow-up mode, and two locking holes (13) are formed in the isolating lock disc (12);
the isolating switch handle assembly (11) comprises a handle end and a connecting end, the handle end is positioned on one side of the isolating lock disc, the connecting end is positioned on the other side of the isolating lock disc, and the connecting end is used for being connected with an isolating switch;
the breaker mechanism component (2) comprises a support (21), a breaker handle assembly (22), a transmission mechanism assembly (23) and a locking rod (24), the support (21) is installed in the box body, and the breaker handle assembly (22), the transmission mechanism assembly (23) and the locking rod (24) are respectively connected with the support (21);
the breaker handle assembly (22) is connected with the transmission mechanism assembly (23);
the transmission mechanism component (23) is connected with the locking rod (24); wherein the content of the first and second substances,
the isolating switch handle assembly can rotate so as to drive the isolating switch to be opened and closed and the isolating lock disc to rotate, and the isolating lock disc rotates so as to have a first position and a second position;
the circuit breaker handle assembly is movable to move the latching lever via a transmission assembly to provide the latching lever with an open position and a latched position;
said locking rod adapted to be inserted into a locking hole in said separator lock housing when said locking rod is in a locked position and said separator lock housing is in a first position;
said locking rod adapted to be inserted into another locking hole in said separator lock housing when said locking rod is in a locked position and said separator lock housing is in a second position;
in the open position, the locking rod is retracted preventing interference with the rotation of the isolation lock disk;
the support (21) is hollow and provided with an opening on one surface, the breaker handle assembly (22) and the transmission mechanism assembly (23) are arranged in the support, and at least part of the breaker handle assembly penetrates through the hole in the support;
a hole for the locking rod to pass through is formed in the side face of the bracket;
the breaker handle assembly (22) comprises a breaker handle (221) and a handle sleeve (222), the handle sleeve (222) is connected with the bracket (21), and the breaker handle (221) is hinged with the handle sleeve (222);
the transmission mechanism assembly (23) comprises a universal joint assembly (231) and a connecting piece (232), one end of the universal joint assembly (231) is connected with the handle sleeve (222), and the other end of the universal joint assembly is connected with one end of the connecting piece (232);
the other end of the connecting piece (232) is connected with the locking rod (24).
2. The latching structure of claim 1 wherein said handle end comprises:
a handle (111), the handle (111) being located on one side of the isolation lock disk (12);
the connection end includes:
a connecting disc (112), wherein the connecting disc (112) is positioned at the other side of the isolating lock disc (12) and is connected with the handle (111);
one end of the square shaft (113) is connected with the connecting disc (112), and the other end of the square shaft (113) is connected with the isolating switch.
3. Latching arrangement according to claim 2, characterized in that the disconnector handle assembly (11) further comprises a handle pad (114), which handle pad (114) is arranged between the handle (111) and the disconnector disc (12).
4. A low voltage contact box comprising a box body and a disconnector and circuit breaker disposed therein, the low voltage contact box further comprising a latching arrangement as claimed in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497158.8A CN107154317B (en) | 2017-06-26 | 2017-06-26 | Locking structure and low-voltage contact box with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497158.8A CN107154317B (en) | 2017-06-26 | 2017-06-26 | Locking structure and low-voltage contact box with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107154317A CN107154317A (en) | 2017-09-12 |
| CN107154317B true CN107154317B (en) | 2020-03-06 |
Family
ID=59796673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710497158.8A Active CN107154317B (en) | 2017-06-26 | 2017-06-26 | Locking structure and low-voltage contact box with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107154317B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2746501Y (en) * | 2004-10-30 | 2005-12-14 | 汕头正超电气有限公司 | Mechanical locking operation mechanism for electric switch cabinet |
| JP4960206B2 (en) * | 2007-12-03 | 2012-06-27 | 寺崎電気産業株式会社 | Retrofit circuit breaker insertion / extraction mechanism |
| CN202373487U (en) * | 2011-12-31 | 2012-08-08 | 广东正超电气有限公司 | Linkage structure of low-pressure connecting box |
| US9859068B2 (en) * | 2013-10-14 | 2018-01-02 | Eaton Corporation | Bucket assemblies for motor control centers (MCC) with disconnect assemblies and related MCC cabinets and methods |
| CN106783291A (en) * | 2017-01-03 | 2017-05-31 | 镇江华源晋昌电器有限公司 | Breaker and isolator operation interlocking mechanism |
| CN206947206U (en) * | 2017-06-26 | 2018-01-30 | 北京潞电电气设备有限公司 | A kind of closedown structure and there is its low voltage liaison net case |
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2017
- 2017-06-26 CN CN201710497158.8A patent/CN107154317B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107154317A (en) | 2017-09-12 |
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