CN216871791U - Grounding interlocking structure and ring main unit - Google Patents
Grounding interlocking structure and ring main unit Download PDFInfo
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- CN216871791U CN216871791U CN202122999127.7U CN202122999127U CN216871791U CN 216871791 U CN216871791 U CN 216871791U CN 202122999127 U CN202122999127 U CN 202122999127U CN 216871791 U CN216871791 U CN 216871791U
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- locking
- door body
- blocking
- connecting rod
- opening
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Abstract
The utility model relates to a grounding interlocking structure, which comprises a shell, a first connecting piece and a second connecting piece, wherein the shell is provided with a front opening; a door panel for opening or closing the front-side opening; a ground bar; a conductive portion for connecting with the ground bar; the interlocking mechanism is arranged between the grounding bar and the door panel; when the grounding bar is in a state of being connected with the conducting part, the grounding bar acts on the acting part backwards, so that the blocking part of the blocking piece is positioned in the locking path, and the door body is prevented from closing the front opening; when the grounding bar is not connected with the conductive part, the blocking part of the blocking piece exits from the locking path, and the door body can close the front side opening. When the grounding bar is not connected with the conductive part, the door plate cannot close the front opening of the shell, so that a user can be reminded that the grounding bar is not installed. The utility model also relates to a ring main unit which also has the function of reminding a user of installing the grounding bar.
Description
Technical Field
The utility model relates to the technical field of grounding interlocking, in particular to a grounding interlocking structure and a ring main unit.
Background
The ring main unit is a group of electric equipment which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval ring main power supply unit. When the grounding bar is not installed, the grounding bar cannot be reliably grounded, and when the inside of the ring main unit has a grounding fault, safety accidents are easily caused because the grounding bar is not grounded.
For example, chinese patent application No. CN202110256360.8 (publication No. CN113078008A) discloses a door interlock for a ring main unit, which includes a base, a grounding shaft, a linking rod, a separating brake shaft, a counter mounting plate, a linking baffle, and a cable chamber door; the grounding shaft is a switch for controlling the on-off of the grounding of the ring main unit, and the interlocking rod is used for limiting the on-off of the grounding shaft through the interlocking baffle; the brake separating shaft is a switch used for controlling the on-off of a circuit breaker of the ring main unit; and a blocking part is arranged on the counter mounting plate and used for supporting the right side of the interlocking baffle. This patent plays dual fail-safe's effect through the part that blocks, and chain baffle at first blocks the rotation of separating brake shaft, and then rethread part supports chain baffle, prevents that the circuit breaker from being opened brake by force, when leading to the power transmission operation, can't close the door, needs repeated combined floodgate, closes the door again and carries out the power transmission operation. When not grounded, the door cannot be closed, so that the user is reminded of grounding.
However, this patent does not disclose other ground interlock structures and, therefore, can continue to improve.
SUMMERY OF THE UTILITY MODEL
The first technical problem to be solved by the present invention is to provide a grounding interlock structure that can also remind the user of grounding in view of the current situation of the prior art.
The second technical problem to be solved by the present invention is to provide a ring main unit, which can also remind the user of grounding, in view of the current situation of the prior art.
The technical scheme adopted by the utility model for solving the first technical problem is as follows: a grounding interlock structure comprises
A housing having a front opening;
the door body is used for opening or closing the front side opening;
a ground bar;
a conductive part for connecting with the ground bar;
the method is characterized in that: also comprises
The locking rod extends up and down, is positioned in the shell and can move up and down relative to the shell, and the lower part of the locking rod is provided with a locking part which is used for locking the door body to close the front opening or unlocking the locking part with the door body to prevent the door body from closing the front opening;
the blocking piece is movably connected with the shell and is provided with a blocking part which is used for blocking a locking path between the door body and the locking part or quitting the locking path;
the action mechanism is connected with the blocking piece and is used for driving the blocking piece to move relative to the shell, and the action mechanism is provided with an action part which is used for being in interference fit with the grounding bar in the front-back direction;
an elastic member connected to the housing and the action mechanism, respectively, and having a tendency to move the blocking portion of the blocking member to the front of the locking portion;
when the grounding bar is in a state of being connected with the conducting part, the grounding bar acts on the acting part backwards, so that the blocking part of the blocking piece is positioned in the locking path, and the door body is prevented from closing the front opening;
when the grounding bar is not connected with the conductive part, the blocking part of the blocking piece exits from the locking path, and the door body can close the front side opening.
The blocking member may have various structures, and preferably, the blocking member includes a transverse portion and a blocking portion extending downward from a front side of the transverse portion, a fixed end of the transverse portion is rotatably connected to the housing, and a movable end of the transverse portion is rotatably connected to the acting mechanism.
The structure of the lateral part may be various, and preferably, the lateral part has an open groove opened forward through which the locking lever passes downward when the blocking part shields the front of the locking part.
The action mechanism may be of various kinds, preferably, the action mechanism comprises
The first connecting rod is provided with a first end and a second end, the first end can be rotatably connected with the shell, and the second end is connected with the elastic piece;
the second connecting rod is provided with a third end close to the first connecting rod and a fourth end far away from the first connecting rod, the third end is rotatably connected with the middle part of the first connecting rod, and the fourth end is movably connected with the movable end of the blocking piece.
In order to make the action part and the first connecting rod or/and the second connecting rod linked, the action part is arranged on the first connecting rod or/and the second connecting rod, and the action part extends downwards. Thus, when the grounding bar acts on the acting part, the acting part acts on the first connecting rod or/and the second connecting rod, and then the blocking piece moves relative to the shell and blocks at or far away from the front side of the locking rod.
In order to position the first connecting rod or/and the second connecting rod, a positioning rod extending downwards is arranged between the first connecting rod and the second connecting rod, the position of the positioning rod is more front than that of the action part, and the positioning rod is adjacent to the position where the first connecting rod and the second connecting rod intersect and is used for positioning the first connecting rod or/and the second connecting rod. Therefore, when the grounding bar is not connected with the conductive part, the positions of the first connecting rod and the second connecting rod are relatively fixed, namely the position of the blocking piece for blocking the locking piece is relatively fixed.
The elastic member may be various, and preferably, the elastic member is a coil spring or an elastic strip.
In order to facilitate the abutting fit of the grounding bar and the acting part, the upper part of the grounding bar is provided with a pressing part which extends upwards, when the grounding bar is in a state of being connected with the conducting part, the pressing part acts backwards on the acting part of the acting mechanism, the blocking part of the blocking piece is far away from the front of the locking part, and the door body can close the front side opening. By providing the pressing portion, it is convenient to contact and press the acting portion.
The locking part and the door body can be in various structures, preferably, the door body is arranged on the shell in a vertically moving mode, the door body is provided with a fixed seat extending backwards, the fixed seat is provided with an open slot opening backwards and sleeved outside the lower portion of the locking rod, the locking part is a positioning flange extending outwards in the radial direction from the lower end of the locking rod, and under the action of gravity, a groove body corresponding to the open slot is placed on the positioning flange to enable the door body to close the front side opening.
The technical scheme adopted by the utility model for solving the second technical problem is as follows: the utility model provides a looped netowrk cabinet which characterized in that: a ground interlock structure as described above is applied.
Compared with the prior art, the utility model has the advantages that: through setting up the locking lever, stop the piece, the action mechanism, the elastic component, when the ground bar is in the state that does not link to each other with the conductive part, stop the piece and stop in the locking route of the door body and sticking department and prevent the door plant from closing the front side opening of casing, can remind user's ground bar not to install like this, remind user's ground connection, when the ground bar is in the state that links to each other with wire portion, stop the piece and withdraw from locking route, with no interference between the locking lever, the front side opening of casing can be closed to the door plant, ensure like this that the ground bar has installed, the safety is improved, it is also convenient to use.
Drawings
Fig. 1 is a schematic perspective view of an opening and closing station of a ring main unit equipped with an embodiment of the present invention;
FIG. 2 is a perspective view of FIG. 1 with the front door removed;
FIG. 3 is a perspective view of FIG. 2 with the door body removed;
FIG. 4 is an enlarged schematic view of detail A of FIG. 3;
FIG. 5 is another schematic view of the opening and closing station of FIG. 1 with the door removed;
FIG. 6 is an enlarged schematic view of detail B of FIG. 5;
FIG. 7 is a schematic view of another state of FIG. 5;
FIG. 8 is an enlarged schematic view of detail C of FIG. 7;
fig. 9 is a schematic perspective view of a door body of the ring main unit according to the embodiment of the present invention.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 9, a preferred embodiment of an opening and closing station of a ring main unit to which the present invention is applied is shown.
The switching station comprises a shell 500 and a ring main unit arranged in the shell 500, wherein the ring main unit is provided with a grounding interlocking structure, and the grounding interlocking structure comprises a shell 100, a door body 200, a grounding bar 400, a conductive part 300, a locking rod 1, a blocking piece 2, an action mechanism 3 and an elastic piece 4.
Wherein the housing 100 has a front side opening 101.
The door body 200 is used to open or close the front-side opening 101.
A conductive part 300 for connecting with the ground bar 400.
The lock lever 1 extends vertically, is located in the housing 100, is movable vertically relative to the housing 100, and has a lock portion 1a at a lower portion thereof, and the lock portion 1a is used for locking with the door body 200 to close the front opening 101 or unlocking with the door body 200 to prevent the door body 200 from closing the front opening 101.
The blocking member 2 is movably connected to the housing 100 and has a blocking portion 21, and the blocking portion 21 is used for blocking a locking path between the door body 200 and the locking portion 1a (i.e. when the blocking portion 21 blocks the front of the locking portion 1a) or exiting the locking path (i.e. when the door body 200 is far away from the locking lever 1). In this embodiment, the blocking member 2 includes a transverse portion 22 and a blocking portion 21 extending downward from the front side of the transverse portion 22, the fixed end 221 of the transverse portion 22 is rotatably connected to the housing 100, and the movable end 222 of the transverse portion 22 is rotatably connected to the action mechanism 3. The transverse portion 22 has a receiving groove 223 open forward, through which the locking bar 1 passes downwards when the blocking portion 21 blocks in the locking path.
The action mechanism 3 is connected to the blocking member 2 for driving the blocking member 2 to move relative to the housing 100, and the action mechanism 3 has an action portion 3a for interference-fitting with the ground bar 400 in the front-rear direction. Specifically, the action mechanism 3 includes a first link 31 and a second link 32. The first link 31 has a first end 311 and a second end 312, the first end 311 is rotatably connected to the housing 100, and the second end 312 is connected to the elastic member 4; the second link 32 has a third end 321 close to the first link 31 and a fourth end 322 far from the first link 31, the third end 321 is rotatably connected with the middle part of the first link 31, and the fourth end 322 is movably connected with the movable end of the blocking member 2. The action portion 3a is provided at a position where the first link 31 and the second link 32 are connected, and the action portion 3a extends downward and has a rod shape. A positioning rod 5 extending downward is provided between the first link 31 and the second link 32, the positioning rod 5 is located forward of the operating portion 3a, and the positioning rod 5 is located adjacent to a position where the first link 31 and the second link 32 intersect and positions the first link 31 and the second link 32. The action mechanism 3 may be any other conventional mechanism that can convert the action of the ground bar 400 on the action portion 3a in the linear direction into the rotation of the stopper portion 21.
The elastic member 4 is connected to the housing 100 (specifically, to the boss 6 of the housing 100) and the action mechanism 3, respectively, and has a tendency to move the blocking portion 21 of the blocking member 2 to the front of the locking portion 1 a. The elastic element 4 is a spiral spring, and can be replaced by an elastic strip.
The upper portion of the ground bar 400 has a pressing portion 401 extending upward, and when the ground bar 400 is connected to the conductive portion 300, the pressing portion 401 acts rearward on the action portion of the action mechanism 3, so that the stopper 24 is withdrawn from the lock path, and the door 200 can close the front opening 101.
The door body 200 is vertically and vertically arranged on the shell 100, the door body 200 is provided with a fixed seat 201 extending backwards, the fixed seat 201 is provided with an open groove 201a opening backwards and sleeved outside the lower part of the locking rod 1, the locking part 1a is a limiting flange extending outwards from the lower end of the locking rod 1 in the radial direction, and under the action of gravity, a groove body corresponding to the open groove 201a is placed on the limiting flange to enable the door body 200 to close the front opening 101. In this embodiment, the door body 200 adopts a hanging door in the prior art to open or close the front-side opening 101, and when the front-side opening 101 is opened by the door body 200, the groove body corresponding to the opening groove 201a of the door body 200 is sleeved outside the locking rod 1; when the front opening 101 needs to be closed, the door body 200 is acted downward, and the groove body of the door body 200 is rested downward on the locking portion 1a (i.e., the stopper flange) of the locking lever 1 by the gravity of the door body 200, so that the front opening 101 is closed downward. In other embodiments, the cooperation mode of the door body 200 and the locking lever 1 may also adopt other structures, for example, the door body 200 may rotate transversely, the door body 200 and the locking lever 1 are locked and cooperated through an elastic clamping pin and a limiting hole, for example, the elastic clamping pin is located on the back of the door body 200, the limiting hole is located on the locking lever 1, the elastic clamping pin is inserted into the limiting hole to lock the door body 200 and the locking lever 1, specifically, when the grounding bar 400 is installed in place (i.e., the grounding bar 400 is connected with the conductive portion 300), the locking lever 1 may move downwards to a desired position under the artificial action, and the door body 200 rotates transversely and locks the door body 200 and the locking lever 1; when the grounding bar 400 is not installed, the elastic clamping pins cannot be aligned with the limiting holes, and the door body 200 cannot be closed towards the rear front side opening 101, so that a user is reminded that the grounding bar 400 is not installed and is not grounded.
When the ground row 400 is in a state of being connected to the conductive part 300, the ground row 400 acts backward on the acting part 3a, and the stopper part 21 of the stopper 2 is positioned in front of the locking part 1a, thereby preventing the door body 200 from closing the front-side opening;
when the ground bar 400 is not connected to the conductive part 300, the stopper part 21 of the stopper 2 is away from the front of the lock part 1a, and the door 200 can close the front opening 101.
This embodiment still discloses a looped netowrk cabinet, and the application has foretell ground connection interlocking structure, still includes inlet wire cabinet, circuit breaker cabinet etc. and casing 100 corresponds the casing of the cabinet body promptly to the looped netowrk cabinet.
The grounding interlocking structure of the embodiment can be used for other electrical equipment needing grounding besides the ring main unit.
The ground interlock structure, the operation principle and the use method of the present embodiment are as follows.
Referring to fig. 6 and 7, when the ground bar 400 is in a state of not being connected to the conductive portion 300, the blocking portion 21 of the blocking member 4 is located in front of the locking lever 1, and the groove body of the opening groove 201a of the door body 200 cannot rest on the locking portion 1a of the locking lever 1, so that the door body 200 cannot close the front opening 101, which may alert a user that the ground bar 400 is not installed and is not grounded.
Referring to fig. 4, when the ground bar 400 is in a state of being connected to the conductive portion 300, the pressing portion 401 of the ground bar 400 acts on the acting portion 3a of the acting mechanism 3 backward, and drives the blocking portion 21 of the blocking member 2 to rotate and leave the locking path of the door body 200, the groove body of the open groove 201a of the door body 200 is placed on the locking portion 1a, under the action of an external force, the door panel 200 can move downward to drive the locking rod 1 to move downward, and the door panel 200 can close the front opening 101 of the housing 100 downward, so that the ground bar 400 is installed, the ring main unit is grounded, and the safety is high.
Claims (10)
1. A grounding interlock structure comprises
A housing (100) having a front-side opening (101);
a door body (200) for opening or closing the front-side opening (101);
a ground bar (400);
a conductive part (300) for connecting to a ground bar (400);
the method is characterized in that: also comprises
The locking rod (1) extends up and down, is positioned in the shell (100) and can move up and down relative to the shell (100), and is provided with a locking part (1a) at the lower part, and the locking part (1a) is used for locking with the door body (200) to close the front opening (101) or unlocking with the door body (200) to prevent the door body (200) from closing the front opening (101);
a blocking piece (2) movably connected with the shell (100) and provided with a blocking part (21), wherein the blocking part (21) is used for blocking a locking path between the door body (200) and the locking part (1a) or withdrawing from the locking path;
the action mechanism (3) is connected with the blocking piece (2) and is used for driving the blocking piece (2) to move relative to the shell (100), and the action mechanism (3) is provided with an action part (3a) which is used for being in interference fit with the grounding bar (400) in the front-rear direction;
an elastic member (4) which is connected to the housing (100) and the action mechanism (3), respectively, and which has a tendency to move a stopper portion (21) of the stopper (2) forward of the lock portion (1 a);
when the grounding bar (400) is in a state of being connected with the conductive part (300), the grounding bar (400) acts on the acting part (3a) backwards, so that the blocking part (21) of the blocking piece (2) is positioned in the locking path, and the door body (200) is prevented from closing the front side opening;
when the grounding bar (400) is not connected with the conductive part (300), the blocking part (21) of the blocking piece (2) exits the locking path, and the door body (200) can close the front opening (101).
2. The ground interlock structure according to claim 1, wherein: the blocking piece (2) comprises a transverse part (22) and a blocking part (21) extending downwards from the front side of the transverse part (22), the fixed end (221) of the transverse part (22) is rotatably connected with the shell (100), and the movable end (222) of the transverse part (22) is rotatably connected with the action mechanism (3).
3. The ground interlock structure according to claim 2, wherein: the transverse portion (22) has a forwardly open accommodation groove (223), through which accommodation groove (223) the locking bar (1) passes downwards when the blocking portion (21) blocks in the locking path.
4. The ground interlock structure according to claim 1, wherein: the action mechanism (3) comprises
A first link (31) having a first end (311) and a second end (312), the first end (311) being rotatably connected to the housing (100), the second end (312) being connected to the elastic member (4);
the second connecting rod (32) is provided with a third end (321) close to the first connecting rod (31) and a fourth end (322) far away from the first connecting rod (31), the third end (321) is rotatably connected with the middle part of the first connecting rod (31), and the fourth end (322) is movably connected with the movable end of the blocking piece (2).
5. The ground interlock structure according to claim 4, wherein: the action part (3a) is arranged on the first connecting rod (31) or/and the second connecting rod (32), and the action part (3a) extends downwards.
6. The ground interlock structure according to claim 4, wherein: a positioning rod (5) extending downwards is arranged between the first connecting rod (31) and the second connecting rod (32), the position of the positioning rod (5) is more front than that of the action part (3a), and the positioning rod (5) is adjacent to the intersection position of the first connecting rod (31) and the second connecting rod (32) and is used for positioning the first connecting rod (31) or/and the second connecting rod (32).
7. The ground interlock structure according to any one of claims 1 to 6, characterized in that: the elastic piece (4) is a spiral spring or an elastic strip.
8. The ground interlock structure according to any one of claims 1 to 6, characterized in that: the upper part of the grounding bar (400) is provided with a pressing part (401) extending upwards, when the grounding bar (400) is in a state of being connected with the conductive part (300), the pressing part (401) acts backwards on an acting part (3a) of the acting mechanism (3) to enable a blocking part (21) of the blocking piece (2) to exit from a locking path, and the door body (200) can close the front side opening (101).
9. The ground interlock structure according to any one of claims 1 to 6, wherein: the door body (200) is arranged on the shell (100) in a vertically moving mode, the door body (200) is provided with a fixing seat (201) extending backwards, the fixing seat (201) is provided with an opening groove (201a) opening backwards and sleeved outside the lower portion of the locking rod (1), the locking portion (1a) is a limiting flange extending outwards in the radial direction from the lower end of the locking rod (1), and under the action of gravity, a groove body corresponding to the opening groove (201a) is placed on the limiting flange to enable the door body (200) to close the front side opening (101).
10. The utility model provides a looped netowrk cabinet which characterized in that: applying a ground interlock as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122999127.7U CN216871791U (en) | 2021-11-30 | 2021-11-30 | Grounding interlocking structure and ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122999127.7U CN216871791U (en) | 2021-11-30 | 2021-11-30 | Grounding interlocking structure and ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216871791U true CN216871791U (en) | 2022-07-01 |
Family
ID=82128020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122999127.7U Active CN216871791U (en) | 2021-11-30 | 2021-11-30 | Grounding interlocking structure and ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216871791U (en) |
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2021
- 2021-11-30 CN CN202122999127.7U patent/CN216871791U/en active Active
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Address after: 315031 No.17 and 22 Fenglin Road, Cicheng Town, Jiangbei District, Ningbo City, Zhejiang Province Patentee after: Ningbo Aokes Intelligent Technology Co.,Ltd. Address before: 315031 No.17 and 22 Fenglin Road, Cicheng Town, Jiangbei District, Ningbo City, Zhejiang Province Patentee before: NINGBO AUX HIGH TECHNOLOGY Co.,Ltd. |