CN212570821U - Aerify cabinet and use lower isolator - Google Patents
Aerify cabinet and use lower isolator Download PDFInfo
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- CN212570821U CN212570821U CN202021741953.0U CN202021741953U CN212570821U CN 212570821 U CN212570821 U CN 212570821U CN 202021741953 U CN202021741953 U CN 202021741953U CN 212570821 U CN212570821 U CN 212570821U
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- connecting rod
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- cutter head
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Abstract
The application discloses aerify cabinet with isolator down includes: a fixed mount; the crossbeam is provided with a conductive part and an insulating part, the insulating part is poured and wrapped outside the conductive part, the three-phase connecting part of the conductive part is exposed out of the insulating part, and the crossbeam is fixed on the fixing frame through the insulating part; the three-phase moving cutter head is rotationally connected with the three-phase connection part. Compared with the prior art, this application is direct to be fixed in the mount with insulating part. Therefore, a metal beam structure is eliminated, and the insulation problem of the conductive piece and the metal beam is eliminated, so that the electrical safety performance is met, and the phase distance can be reduced, so that the size of the lower isolating switch can be reduced.
Description
Technical Field
The utility model relates to an electric power industry technical field, in particular to aerify cabinet and use isolator down.
Background
At present aerify used lower isolator of cabinet and mainly include metal crate and three-phase and move the tool bit, wherein, the three-phase moves the tool bit and rotates to be connected in metal crate, and the three-phase moves the tool bit and has closing position, branch floodgate position and earthing position, and the three-phase moves the tool bit and is used for using with the cooperation of the quiet tool bit of outside three-phase, and the three-phase moves the tool bit and does in metal crate set up the structure: the metal frame is provided with a metal beam, an insulating beam is fixed on the metal beam, the conductive piece of the movable cutter head is fixed on the insulating beam again, and in order to ensure that the conductive piece and the metal frame meet an enough insulation distance, therefore, the phase distance between the three phases of the existing lower isolating switch is larger and can reach 150mm, and the volume of the lower isolating switch is larger.
In summary, how to reduce the volume of the lower isolation switch while satisfying the electrical safety performance becomes a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an aerify cabinet and use isolator down to when satisfying the electrical safety performance, reduce isolator's volume down.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a lower isolation switch for an inflatable cabinet, comprising:
a fixed mount;
the beam is provided with a conductive part and an insulating part, the insulating part is poured and wrapped outside the conductive part, the three-phase connecting part of the conductive part is exposed out of the insulating part, and the beam is fixed on the fixing frame through the insulating part;
and the three-phase movable cutter head is rotatably connected to the three-phase connection part.
Preferably, in the lower isolating switch for the gas-filled cabinet, the phase distance between the three-phase moving heads is 105mm to 115 mm.
Preferably, in the above lower isolating switch for the gas-filled cabinet, the fixing frame includes a first fixing plate and a second fixing plate which are arranged in parallel, and two ends of the cross beam are respectively fixed to the first fixing plate and the second fixing plate.
Preferably, in the lower isolating switch for the gas insulated switchgear, two ends of a grounding beam of the lower isolating switch are respectively fixed to the first fixing plate and the second fixing plate, the grounding beam is provided with a grounding bar, and the grounding bar is provided with a grounding contact;
when the three-phase moving cutter head rotates to be connected with the grounding contact, the three-phase moving cutter head is in a grounding position;
when the three-phase moving cutter head rotates to be connected with an external three-phase static cutter head, the three-phase moving cutter head is in a switch-on position;
when the three-phase movable cutter head rotates to a position between the grounding contact and the external three-phase static cutter head, the three-phase movable cutter head is in a brake separating position.
Preferably, in the above lower isolating switch for the gas-filled cabinet, the three-phase moving tool bit is driven to rotate by a driving assembly, and the driving assembly includes:
the two ends of the insulated driving shaft are rotatably connected to the fixed frame, and the insulated driving shaft is used for being connected with an external power component;
one end of the first connecting rod is circumferentially limited and fixed on the insulated driving shaft;
one end of the second connecting rod is rotatably connected with the other end of the first connecting rod;
the insulating sleeve is fixed on the three-phase movable cutter head in a sleeved mode, the other end of the second connecting rod is rotatably connected with the insulating sleeve, and the first connecting rod, the second connecting rod and the three-phase movable cutter head form a four-connecting-rod structure.
Preferably, in the lower isolating switch for the gas insulated switchgear, the number of the first connecting rod, the second connecting rod and the insulating sleeve is three, and each moving head of the three moving heads corresponds to one insulating sleeve, one first connecting rod and one second connecting rod.
Preferably, in the lower isolating switch for the gas-filled cabinet, the cross section of the insulating driving shaft is polygonal, and one end of the first connecting rod is provided with a polygonal hole matched with the insulating driving shaft.
Preferably, in foretell aerify cabinet with lower isolator, the second connecting rod comprises two parallel spaced arcs, two the arc set up respectively in the both sides of first connecting rod, first connecting rod can be two space internalization between the arc, and two the arc set up respectively in the both sides of insulating cover.
Preferably, in the lower isolating switch for the gas insulated switchgear, a plurality of raised grid pieces are arranged outside the insulating part at intervals.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a lower isolating switch for an inflatable cabinet, which comprises a fixed frame, a beam and a three-phase moving cutter head; the beam is fixed on the fixing frame and provided with a conductive part and an insulating part, the insulating part is poured and wrapped outside the conductive part, and the three-phase connecting part of the conductive part is exposed out of the insulating part; the three-phase moving tool bit is rotationally connected with the three-phase connection part.
With prior art on metal frame fix the metal crossbeam earlier, fix insulating crossbeam on the metal crossbeam, compare the structure on insulating crossbeam with the conductive part of three-phase again, the conductive part of crossbeam in this application is wrapped up in wherein by the insulating part of pouring, and the conductive part is located the inside of insulating part promptly, directly is fixed in the insulating part on the mount. Therefore, a metal beam structure is eliminated, and the insulation problem of the conductive piece and the metal beam is eliminated, so that the electrical safety performance is met, and the phase distance can be reduced, so that the size of the lower isolating switch can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a lower isolation switch for an inflatable cabinet according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a lower isolation switch for an inflatable cabinet, provided by an embodiment of the present invention, with a first fixing plate removed;
fig. 3 is a schematic structural view of the lower isolation switch for the inflatable cabinet in the opening position according to the embodiment of the present invention;
fig. 4 is a schematic structural view of the lower isolation switch for the gas-filled cabinet in the grounding position according to the embodiment of the present invention;
fig. 5 is a schematic structural view of a lower isolation switch for an inflatable cabinet in a switch-on position according to an embodiment of the present invention;
fig. 6 is a schematic view of an installation structure of a driving assembly of a lower isolation switch for an inflatable cabinet according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a driving assembly of a lower isolation switch for an air-filled cabinet according to an embodiment of the present invention.
Wherein, 1 is a first fixing plate, 2 is a driving component, 21 is an insulated driving shaft, 22 is a first connecting rod, 221 is a polygonal hole, 23 is a second connecting rod, 24 is an insulating sleeve, 3 is a beam, 31 is a three-phase connecting part, 4 is a three-phase moving head, 5 is a grounding row, 6 is a grounding contact, 7 is a grounding beam, and 8 is a second fixing plate.
Detailed Description
The core of the utility model is to provide an aerify cabinet and use isolator down to when satisfying the electrical safety performance, isolator's volume under the reduction.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-7, an embodiment of the present invention provides a lower isolation switch for an inflatable cabinet, which includes a fixing frame, a beam 3 and a three-phase moving blade 4; the crossbeam 3 is fixed on the fixing frame, the crossbeam 3 is provided with a conductive part and an insulating part, the insulating part is poured and wrapped outside the conductive part, namely the insulating part is integrally poured and molded into a crossbeam structure, the conductive part is fixed in the insulating part, the three-phase connecting part 31 of the conductive part is exposed out of the insulating part, and the crossbeam 3 is fixedly connected with the fixing frame through the insulating part; the three-phase moving cutter head 4 is rotatably connected with the three-phase connecting part 31.
Compared with the structure that a metal beam is fixed on a metal frame, an insulating beam is fixed on the metal beam, and a three-phase conductive part is arranged on the insulating beam, the conductive part of the beam 3 is wrapped in the insulating part by pouring, namely, the conductive part is positioned in the insulating part and is directly fixed with a fixing frame through the insulating part. Thereby cancelled metal crossbeam structure, eliminated electrically conductive piece and metal crossbeam's insulating problem, consequently, electrically conductive part in this application because do not have metal crossbeam's existence for between electrically conductive part and the mount, and the insulating distance increase between electrically conductive part's three-phase junction position 31, when satisfying the electric safety performance, the looks interval can reduce, thereby can reduce isolator's volume down. In addition, the crossbeam 3 integrated casting shaping for crossbeam 3 uniformity is good, and the installation is convenient, not only improves production efficiency, has still reduced manufacturing cost.
Further, in this embodiment, the phase distance of the three-phase moving blade 4 is 105mm to 115mm, specifically may be 110mm, and compared with the existing phase distance of 150mm, the phase distance in this application is reduced, so that the size of the beam 3 of the lower isolation switch in the length direction can be reduced, and at least 80mm can be reduced, thereby reducing the volume of the lower isolation switch.
In the present embodiment, the fixing frame includes a first fixing plate 1 and a second fixing plate 8 arranged in parallel, and both ends of the cross beam 3 are fixed to the first fixing plate 1 and the second fixing plate 8, respectively. The first fixing plate 1 and the second fixing plate 8 are metal plates, and may be triangular plates, and of course, three angular positions of the triangular plates are not necessarily sharp corners, and may be round edges or rectangular edges. Both ends of the cross beam 3 and the first fixing plate 1 and the second fixing plate 8 can be fixed through bolts. The fixing frame is simple in structure and convenient to install.
Furthermore, two ends of a grounding beam 7 of the lower isolating switch are respectively fixed on the first fixing plate 1 and the second fixing plate 8, the grounding beam 7 is provided with a grounding bar 5, and the grounding bar 5 is provided with a grounding contact 6; specifically, the grounding bar 5 is provided with a through hole, the grounding beam 7 is provided with a threaded hole, the grounding contact 6 is provided with a through hole, a bolt sequentially penetrates through the through hole of the grounding contact 6 and the through hole of the grounding bar 5, and finally the bolt is fixed in the threaded hole of the grounding beam 7 in a threaded manner, so that the grounding contact 6, the grounding bar 5 and the grounding beam 7 are fixed, and the assembly is completed by using fewer parts.
As shown in fig. 4, when the three-phase moving blade 4 rotates to connect with the grounding contact 6, the three-phase moving blade 4 is in the grounding position;
as shown in fig. 5, when the three-phase moving bit 4 rotates to be connected with the external three-phase stationary bit, the three-phase moving bit 4 is in a switch-on position;
as shown in fig. 6, when the three-phase moving bit 4 rotates to a position between the grounding contact 6 and the external three-phase static bit, the three-phase moving bit 4 is in a switch-off position, and the three-phase moving bit 4 is not connected to the grounding contact 6 and the external three-phase static bit.
As shown in fig. 6 and 7, the three-phase moving blade 4 is driven to rotate by the driving assembly 2, and the driving assembly 2 comprises an insulated driving shaft 21, a first connecting rod 22, a second connecting rod 23 and an insulated sleeve 24; wherein, both ends of the insulated driving shaft 21 are rotatably connected to the fixing frame, specifically, both ends of the insulated driving shaft 21 are respectively rotatably connected to the first fixing plate 1 and the second fixing plate 8, the insulated driving shaft 21 is used for being connected with an external power component, and the insulated driving shaft 21 can rotate; one end of the first connecting rod 22 is circumferentially limited and fixed on the insulating driving shaft 21, namely, the first connecting rod 22 and the insulating driving shaft 21 are relatively circumferentially static, and the insulating driving shaft 21 drives the first connecting rod 22 to rotate around the axis of the insulating driving shaft 21; one end of the second connecting rod 23 is rotatably connected with the other end of the first connecting rod 22; the insulating sleeve 24 is fixed on the three-phase moving cutter head 4 in a sleeved mode, the other end of the second connecting rod 23 is rotatably connected with the insulating sleeve 24, and the first connecting rod 22, the second connecting rod 23 and the three-phase moving cutter head 4 form a four-connecting-rod structure.
The driving assembly 2 is in operation, as shown in fig. 4, at this moment, the three-phase moving blade 4 is in a horizontal position, namely, a grounding position, then, the first connecting rod 22 is driven by the insulating driving shaft 21 to rotate counterclockwise by a certain angle, the first connecting rod 22 drives the second connecting rod 23 to move, the second connecting rod 23 drives the insulating sleeve 24 fixed on the three-phase moving blade 4 to move, and then the three-phase moving blade 4 is driven to rotate counterclockwise to the brake-separating position shown in fig. 3, then, the insulating driving shaft 21 continues to rotate counterclockwise by a certain angle, the first connecting rod 22 continues to drive the second connecting rod 23 to move, the second connecting rod 23 drives the insulating sleeve 24 to move, and then the three-phase moving blade 4 is driven to continue to rotate counterclockwise to the brake-closing position. When moving from the on position to the off position and the ground position, the insulated drive shaft 21 rotates in the reverse direction.
In this embodiment, preferably, the number of the first connecting rod 22, the second connecting rod 23 and the insulating sleeve 24 is three, and each moving blade of the three-phase moving blade 4 corresponds to one insulating sleeve 24, one first connecting rod 22 and one second connecting rod 23. The insulating driving shaft 21 is simultaneously connected with three first connecting rods 22, and the insulating driving shaft 21 drives the three first connecting rods 22 to synchronously rotate so as to drive the three-phase movable cutter head 4 to synchronously rotate. The three-phase moving cutter head 4 is stably driven through the three first connecting rods 22, the three second connecting rods 23 and the three insulating sleeves 24.
Certainly, the number of the insulating sleeve 24 can also be one or two, if the number of the insulating sleeve is one, three moving blades are all fixed on one insulating sleeve 24, the number of the first connecting rod 22 and the second connecting rod 23 can be one, two or three, as long as the power of the insulating driving shaft 21 can be transmitted to the insulating sleeve 24, and when the insulating sleeve 24 is driven to move, the three-phase moving blades 4 are synchronously driven to move; if the number of the insulating sleeves 24 is two, one movable cutter head is fixed on one insulating sleeve 24, the other two movable cutter heads are fixed on the other insulating sleeve 24, and correspondingly, each insulating sleeve 24 is in transmission connection with the insulating driving shaft 21 through at least one first connecting rod 22 and one second connecting rod 23.
Further, the second connecting rod 23 is composed of two arc plates spaced in parallel, the two arc plates are respectively disposed on two sides of the first connecting rod 22, the two arc plates are respectively disposed on two sides of the insulating sleeve 24, and a space between the two arc plates allows the insulating sleeve 24 and the first connecting rod 22 to freely rotate. Of course, the second link 23 may also be a single arc-shaped plate as long as the rotational connection can be achieved.
In the present embodiment, the cross section of the insulated drive shaft 21 is polygonal, and one end of the first link 22 is provided with a polygonal hole 221 matched with the insulated drive shaft 21. Specifically, the insulated drive shaft 21 has a hexagonal cross section, and one end of the first link 22 is provided with a hexagonal hole. Through the cooperation of the polygonal cross section and the polygonal hole 221, the circumferential limit fit of the first connecting rod 22 and the insulated driving shaft 21 is realized. So set up, can make things convenient for the pot head of first connecting rod 22 on insulating drive shaft 21, convenient dismantlement. Of course, the insulated drive shaft 21 and the first link 22 may also be engaged by a keyway structure.
In the present embodiment, a plurality of raised grid pieces are provided at intervals outside the insulating portion of the beam 3, thereby increasing the creepage distance between the three-phase connection sites 31. The safety is further improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides an aerify cabinet and use isolator down which characterized in that includes:
a fixed mount;
the beam (3) is provided with a conductive part and an insulating part, the insulating part is poured and wrapped outside the conductive part, a three-phase connecting part (31) of the conductive part is exposed out of the insulating part, and the beam (3) is fixed on the fixing frame through the insulating part;
and the three-phase movable tool bit (4) is rotationally connected with the three-phase connecting part (31).
2. The lower isolating switch for the gas-filled cabinet as claimed in claim 1, wherein the distance between the three-phase moving heads (4) is 105mm to 115 mm.
3. The lower isolation switch for the inflatable cabinet as claimed in claim 1, wherein the fixing frame comprises a first fixing plate (10) and a second fixing plate (8) which are arranged in parallel, and two ends of the cross beam (3) are respectively fixed with the first fixing plate (10) and the second fixing plate (8).
4. The lower disconnecting switch for the gas insulated switchgear according to claim 3, wherein two ends of a grounding beam (7) of the lower disconnecting switch are respectively fixed to the first fixing plate (10) and the second fixing plate (8), the grounding beam (7) is provided with a grounding bar (5), and the grounding bar (5) is provided with a grounding contact (6);
when the three-phase moving cutter head (4) rotates to be connected with the grounding contact (6), the three-phase moving cutter head (4) is in a grounding position;
when the three-phase moving cutter head (4) rotates to be connected with an external three-phase static cutter head, the three-phase moving cutter head (4) is in a switch-on position;
when the three-phase movable cutter head (4) rotates to a position between the grounding contact (6) and the external three-phase static cutter head, the three-phase movable cutter head (4) is in a brake separating position.
5. The lower isolating switch for the gas-insulated switchgear according to claim 1, wherein the three-phase moving tool bit (4) is driven to rotate by a driving component (2), and the driving component (2) comprises:
the two ends of the insulated driving shaft (21) are rotatably connected to the fixed frame, and the insulated driving shaft (21) is used for being connected with an external power component;
the first connecting rod (22), one end of the first connecting rod (22) is limited and fixed on the insulated driving shaft (21) in the circumferential direction;
one end of the second connecting rod (23) is rotatably connected with the other end of the first connecting rod (22);
insulating cover (24), the suit is fixed in three-phase moves tool bit (4), the other end of second connecting rod (23) with insulating cover (24) rotate to be connected, first connecting rod (22), second connecting rod (23) with three-phase moves tool bit (4) and forms four-bar linkage.
6. The lower isolating switch for the inflatable cabinet as claimed in claim 5, wherein the number of the first connecting rod (22), the second connecting rod (23) and the insulating sleeve (24) is three, and each moving head of the three moving heads (4) corresponds to one insulating sleeve (24), one first connecting rod (22) and one second connecting rod (23).
7. The lower disconnecting switch for the gas insulated cabinet according to claim 5, wherein the cross section of the insulated driving shaft (21) is polygonal, and one end of the first connecting rod (22) is provided with a polygonal hole (221) matched with the insulated driving shaft (21).
8. The lower isolation switch for the inflatable cabinet as claimed in claim 5, wherein the second connecting rod is composed of two parallel and spaced arc plates, the two arc plates are respectively disposed at two sides of the first connecting rod, the first connecting rod can move in a space between the two arc plates, and the two arc plates are respectively disposed at two sides of the insulating sleeve.
9. The lower isolation switch for the inflatable cabinet as claimed in claim 1, wherein a plurality of raised grids are arranged at intervals outside the insulating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021741953.0U CN212570821U (en) | 2020-08-19 | 2020-08-19 | Aerify cabinet and use lower isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021741953.0U CN212570821U (en) | 2020-08-19 | 2020-08-19 | Aerify cabinet and use lower isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212570821U true CN212570821U (en) | 2021-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021741953.0U Active CN212570821U (en) | 2020-08-19 | 2020-08-19 | Aerify cabinet and use lower isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212570821U (en) |
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2020
- 2020-08-19 CN CN202021741953.0U patent/CN212570821U/en active Active
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