CN217507189U - Double-power incoming line load switch interlocking device - Google Patents
Double-power incoming line load switch interlocking device Download PDFInfo
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- CN217507189U CN217507189U CN202221094585.4U CN202221094585U CN217507189U CN 217507189 U CN217507189 U CN 217507189U CN 202221094585 U CN202221094585 U CN 202221094585U CN 217507189 U CN217507189 U CN 217507189U
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Abstract
The utility model provides a dual supply inlet wire load switch interlock, including first load switch, second load switch, first load switch is equipped with first horizontal operation axle, second load switch is equipped with second horizontal operation axle, the terminal fixedly connected with first carousel piece of first horizontal operation axle, the terminal fixedly connected with second carousel piece of second horizontal operation axle, be equipped with the baffle between first carousel piece and the second carousel piece, circular fretwork hole has been seted up to the baffle, can install capsule form lock pellet piece transversely in this circular fretwork hole with sliding, both ends are the hemisphere about capsule form lock pellet piece, middle part between the both ends is cylindrical about the capsule form lock pellet piece, first carousel piece is equipped with first pit, second carousel piece is equipped with the second pit. The utility model discloses can ensure that two way inlet wire power can only put through wherein all the way at one time, drive mechanism is simple moreover, small in size.
Description
Technical Field
The utility model belongs to the technical field of distribution equipment, concretely relates to dual supply inlet wire load switch interlock.
Background
In order to ensure that a power distribution system can continuously supply power for a long time, a double-path incoming line power supply is usually arranged, so that when one incoming line power supply loses power, the other standby incoming line power supply supplies power. The two paths of incoming line power supplies are respectively provided with load switches, each load switch is respectively provided with a horizontal operating shaft, each load switch realizes switching-on or switching-off through the rotation of the respective horizontal operating shaft (rotating around the central axis of the horizontal operating shaft), and when the horizontal operating shaft rotates to a switching-off position, the corresponding load switch is in a switching-off state; on the contrary, when the horizontal operating shaft rotates to the switching-on position, the corresponding load switch is in the switching-on state.
Obviously, in order to ensure the system safety, two incoming line power supplies can only start one of the two incoming line power supplies at the same time, and are strictly prohibited to be switched on simultaneously, that is, at most one load switch can be in a switching-on state and cannot be switched on simultaneously under any condition at any time, so that a reliable interlocking relation must be formed between the two load switches respectively used for controlling the two incoming line power supplies, and the interlocking device must be applied to the dual-power incoming line load switch.
The interlocking requirements of the dual-power incoming line load switch interlocking device are that 1, two load switches can be in an opening state at the same time, or horizontal operating shafts of the two load switches can rotate to an opening position at the same time, 2, the two load switches cannot be in a closing state at the same time, or the horizontal operating shafts of the two load switches cannot rotate to a closing position at the same time, and 3, the opening and closing states of the two load switches can be exchanged, namely when a first load switch is closed and a second load switch is opened, the first load switch can be switched to be opened and the second load switch is switched to be closed through certain operation, and vice versa.
In order to solve the above problems, the applicant has designed a dual power incoming line load switch locking device and applied a patent to the national intellectual property office. Patent No. 201310355319.1. The dual power incoming line load switch locking device can ensure that two incoming line power supplies can only be started one way at the same time and can not be switched on at the same time, however, the applicant finds in practice that the locking device still has the following points to be improved:
firstly, as a plurality of gears are needed for transmission, and the gears have backlash, the transmission is not accurate, and the problem of jamming can occur when a large error occurs;
and secondly, the transmission mechanism is complex and tortuous, and has large volume, thereby occupying valuable space in the ring main unit.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned shortcoming and provide a dual supply inlet wire load switch interlock, it can ensure that two way inlet wire power can only put through wherein all the way at the same time, and drive mechanism is simple moreover, small in size.
The purpose can be realized according to the following scheme: a dual-power incoming line load switch interlocking device comprises a first load switch and a second load switch, wherein the first load switch is provided with a first horizontal operating shaft, and the first load switch realizes switching on or switching off through the rotation of the first horizontal operating shaft; the second load switch is provided with a second horizontal operating shaft, the second load switch realizes switching-on or switching-off through the rotation of the second horizontal operating shaft, and the first horizontal operating shaft and the second horizontal operating shaft are positioned on the same straight line; the axial directions of the first horizontal operating shaft and the second horizontal operating shaft are transverse;
the device is mainly characterized in that the tail end of the first horizontal operation shaft is fixedly connected with a circular first rotating disc, and the first rotating disc rotates synchronously along with the first horizontal operation shaft; the tail end of the second horizontal operating shaft is fixedly connected with a circular second rotary disc piece which synchronously rotates along with the second horizontal operating shaft; a partition plate is arranged between the first rotary disc piece and the second rotary disc piece, the first rotary disc piece is close to the first side surface of the partition plate, the second rotary disc piece is close to the second side surface of the partition plate, a circular hollow hole is formed in the partition plate, a capsule-shaped lock core block is transversely slidably mounted in the circular hollow hole, the left end portion and the right end portion of the capsule-shaped lock core block are hemispherical, the middle portion between the left end portion and the right end portion of the capsule-shaped lock core block is cylindrical, and the central axis direction of the cylindrical middle portion is transverse; the first rotating disc is provided with a first pit, the orientation of the first pit is transverse, and the concave cavity of the first pit is in a spherical crown shape; the second turntable piece is provided with a second pit, the orientation of the second pit is transverse, and the concave cavity of the second pit is in a spherical crown shape;
the transverse depth of the first concave pit, the transverse depth of the second concave pit, the radius of the hemispherical end part of the capsule-shaped lock core block and the radius of the cylindrical middle part of the capsule-shaped lock core block are all equal to the radius of the circular hollow hole of the partition plate; the transverse distance between the first rotary disc plate and the second rotary disc plate is equal to the transverse dimension of the capsule-shaped lock core block minus the radius of the hemispherical end of the capsule-shaped lock core block;
when the first pit of the first rotating disc plate rotates to be aligned with the capsule-shaped lock core block, the first horizontal operating shaft rotates to the opening position; when the second dimple of the second rotating disk plate is rotated to be aligned with the capsule-shaped core lock piece, the second horizontal operation shaft is rotated to the opening position.
The utility model has the advantages of it is following and effect:
one, the utility model discloses can realize two load switch's interlocking function: 1. ensuring that the horizontal operating shafts of the two load switches cannot be simultaneously in a switching-on position, when one of the horizontal operating shafts of the load switches is in the switching-on position, the horizontal operating shaft of the other load switch is surely in a switching-off position, and the horizontal operating shaft in the switching-off position is clamped by the capsule-shaped lock core block and cannot rotate; 2. the horizontal operating shafts of the two load switches can be simultaneously positioned at the brake separating position; 3. the two load switches can realize the switching of the opening and closing states.
The switch cabinet has the advantages of simple structure, strong reliability, simple and convenient operation of switching-on and switching-off state conversion of the two load switches, simple and direct mechanical transmission structure, no tortuous transmission path, small volume and avoidance of occupying valuable space in the cabinet.
Drawings
Fig. 1 is a schematic top view of an assembly structure of an embodiment of the present invention when the first load switch and the second load switch are both in the open state.
Fig. 2 is a side view of the first load switch in a closed state.
Fig. 3 is a side view of the second load switch in a closed state.
Fig. 4 is a side view of the first load switch in the open state.
Fig. 5 is a side view of the second load switch in the open state.
Fig. 6 is a schematic diagram of the first and second rotary discs and the capsule-shaped core locking piece in the initial state (the first and second load switches are both in the open state) in fig. 1.
Fig. 7 is a partially enlarged schematic view of fig. 6.
Fig. 8 is an exploded view of the structure shown in fig. 7.
Fig. 9 is a perspective view of the capsule-shaped lock core block.
Fig. 10 is a schematic top view of the capsule-shaped lock core block.
Fig. 11 is a schematic diagram of states of the first rotating disk, the second rotating disk and the capsule-shaped locking core block when the first load switch is switched on.
Fig. 12 is a partially enlarged schematic view of fig. 11.
Fig. 13 is a schematic diagram of states of the first rotating disk, the second rotating disk and the capsule-shaped locking core block when the second load switch is switched on.
Detailed Description
Fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5 show a dual power supply incoming line load switch interlocking device, which includes a first load switch 1 and a second load switch 2, where the first load switch 1 is provided with a first horizontal operating shaft 11, a first handle 14 is arranged outside the ring main unit, the first horizontal operating shaft 11 is fixedly connected with a first crank arm 16, the first handle 14 is connected with the first crank arm 16 through a first connecting rod 15, and then the first handle 14 is pulled up and down to drive the first horizontal operating shaft 11 to rotate through the first connecting rod 15 and the first crank arm 16, so that the first horizontal operating shaft 11 rotates between a closing position and an opening position, and the first load switch 1 realizes closing or opening through rotation of the first horizontal operating shaft 11; the second load switch 2 is provided with a second horizontal operating shaft 21, the second load switch 2 is switched on or switched off through rotation of the second horizontal operating shaft 21, a second handle 24 is arranged outside the ring main unit, the second horizontal operating shaft 21 is fixedly connected with a second crank arm 26, the second handle 24 is connected with the second crank arm 26 through a second connecting rod 25, and then the second handle 24 is pulled up and down to drive the second horizontal operating shaft 21 to rotate through the second connecting rod 25 and the second crank arm 26, so that the second horizontal operating shaft 21 rotates between a switching-on position and a switching-off position, and the second load switch 2 is switched on or switched off through rotation of the second horizontal operating shaft 21; the first horizontal operation shaft 11 and the second horizontal operation shaft 21 are located on the same straight line; the axial directions of the first horizontal operating shaft 11 and the second horizontal operating shaft 21 are transverse;
as shown in fig. 6, 7 and 8, a circular first turntable plate 12 is fixedly connected to the end of the first horizontal operating shaft 11, the first turntable plate 12 rotates synchronously with the first horizontal operating shaft 11, a circular second turntable plate 22 is fixedly connected to the end of the second horizontal operating shaft 12, and the second turntable plate 22 rotates synchronously with the second horizontal operating shaft 12; a partition plate 3 is arranged between the first rotating disk plate 12 and the second rotating disk plate 22, the first rotating disk plate 12 is close to the first side surface of the partition plate 3, the second rotating disk plate 22 is close to the second side surface of the partition plate 3, the partition plate 3 is provided with a circular hollow hole 30, and the capsule-shaped lock core block 4 can be transversely installed in the circular hollow hole 30 in a sliding mode.
As shown in fig. 8, 9, 12 and 10, the left and right end portions 41 of the capsule-shaped lock core piece 4 are hemispherical, the radius of the hemispherical end portion 41 is r, the middle portion between the left and right end portions of the capsule-shaped lock core piece 4 is cylindrical, the central axis (i.e., the straight line m in fig. 8 and 10) of the cylindrical middle portion 42 is in the transverse direction, the radius of the cylindrical middle portion 42 is r, and the transverse dimension of the cylindrical middle portion 42 is d, so that the transverse dimension of the entire capsule-shaped lock core piece 4 is d + r + r; the first rotating disk plate 12 is provided with a first pit 10, the concave cavity of the first pit 10 is in a spherical crown shape, the second rotating disk plate 22 is provided with a second pit 20, and the concave cavity of the second pit 20 is in a spherical crown shape; the transverse depth of the first pit 10 (as shown by a dimension line a in fig. 8), the transverse depth of the second pit (as shown by a dimension line b in fig. 8), the radius r of the hemispherical end 41 of the capsule-shaped core block, and the radius of the cylindrical middle part 42 of the capsule-shaped core block (as shown by a dimension line r in fig. 8) are all equal to the radius of the circular through hole 30 of the partition plate (as shown by a dimension line c in fig. 8), i.e. a = b = r = c;
the transverse distance between the first rotating disk plate 12 and the second rotating disk plate 22 is equal to the transverse dimension of the capsule-shaped core locking piece (corresponding to d + r + r) minus the radius r of the hemispherical end of the capsule-shaped core locking piece, that is, the transverse distance between the first rotating disk plate 12 and the second rotating disk plate 22 is equal to d + r, that is, equal to the transverse dimension d of the cylindrical middle portion 42 of the capsule-shaped core locking piece plus the radius r of the hemispherical end, as shown in fig. 12; the thickness of the partition 3 is also equal to the transverse dimension d of the cylindrical middle part 42 of the capsule-shaped lock core block plus the radius r of the hemispherical end; when the first pit 10 of the first turntable plate 12 is rotated to be aligned with the capsule-shaped lock core pieces 4 (the state shown in fig. 6, 7, 13), the first horizontal operation shaft 1 is rotated to the opening position, as shown in fig. 4, 1; when the second pocket 20 of the second rotary plate 22 is rotated to be aligned with the capsule-shaped core block 4 (the state shown in fig. 6, 7, 11, 12), the second horizontal operation shaft 2 is rotated to the opening position, as shown in fig. 5, 1.
The working process and principle of the above embodiment are as follows:
first, in the initial state, the first horizontal operating shaft 11 is located at the opening position, and the second horizontal operating shaft 21 is also located at the opening position, at this time, the first recess 10 of the first rotary plate 12 is aligned with the capsule-shaped lock core block 4, and the second recess 20 of the second rotary plate 22 is also aligned with the capsule-shaped lock core block 4, as shown in fig. 1, 4, 5, 6 and 7;
secondly, if the initial state shown in fig. 4, 6 and 7 is to be changed, for example, the first load switch 1 is to be switched on, the first handle 14 may be pulled upwards, and the first handle 14 may drive the first horizontal operating shaft 11 to rotate through the first connecting rod 15 and the first crank arm 16, so that the first horizontal operating shaft 11 rotates to a switching-on position, and the first load switch realizes switching on, as shown in fig. 2; in the process, the first pit 10 of the first turntable plate 12 rotates to a position deviated from the capsule-shaped core locking piece 4, the surface of the first turntable plate 12 pushes the capsule-shaped core locking piece 4 transversely, the capsule-shaped core locking piece 4 moves rightwards and is embedded into the second pit 20 of the second turntable plate 22, the second turntable plate 22 is locked, and then the second turntable plate 22 and the second horizontal operating shaft 21 cannot rotate, namely the second horizontal operating shaft 21 is locked at a brake-off position, so that the second load switch 2 cannot be switched on, as shown in fig. 11 and 12;
third, if the state shown in fig. 11 and 12 is changed, that is, if the second load switch 2 is switched on in the state shown in fig. 11, the first handle 14 is first pulled downward to rotate the first horizontal operating shaft 11 in the opposite direction, and the first load switch 1 and the second load switch 2 are both in the initial state of switching off, the state shown in fig. 1, 4 and 5 is first returned, and then the second handle 24 is pulled upward, the second handle 24 can drive the second horizontal operating shaft 20 to rotate through the second link 25 and the second crank 26, so that the second horizontal operating shaft 20 rotates to the switching-on position, and the second load switch 2 performs switching-on, as shown in fig. 3, during which the second pit 20 of the second turntable 22 rotates to a position deviated from the position of the capsule-shaped core block 4, the capsule-shaped core block 4 is pushed out of the second pit 20 and embedded in the first pit 10 of the first turntable 12, then, the first turntable plate 12 and the first horizontal operating shaft 11 cannot rotate, that is, the first horizontal operating shaft 11 cannot rotate to the switching-on position, and the first load switch 1 cannot be switched on, as shown in fig. 13;
fourth, similarly, if the state shown in fig. 13 is to be changed, that is, if the first load switch 1 is to be switched on in the state shown in fig. 13, the second handle 24 is first pulled downward to rotate the second horizontal operating shaft 21 in the opposite direction, so as to return to the initial state of "both load switches are switched off" shown in fig. 1, 4 and 5, and then the operation of "switching on the first load switch 1" can be performed.
Claims (1)
1. A dual-power incoming line load switch interlocking device comprises a first load switch and a second load switch, wherein the first load switch is provided with a first horizontal operating shaft, and the first load switch realizes switching on or switching off through the rotation of the first horizontal operating shaft; the second load switch is provided with a second horizontal operating shaft, the second load switch realizes switching-on or switching-off through the rotation of the second horizontal operating shaft, and the first horizontal operating shaft and the second horizontal operating shaft are positioned on the same straight line; the axial directions of the first horizontal operating shaft and the second horizontal operating shaft are transverse;
the device is characterized in that the tail end of the first horizontal operation shaft is fixedly connected with a first circular rotating disc, and the first rotating disc rotates synchronously along with the first horizontal operation shaft; the tail end of the second horizontal operating shaft is fixedly connected with a circular second rotary disc sheet which rotates synchronously along with the second horizontal operating shaft; a partition plate is arranged between the first rotary disc piece and the second rotary disc piece, the first rotary disc piece is close to the first side surface of the partition plate, the second rotary disc piece is close to the second side surface of the partition plate, a circular hollow hole is formed in the partition plate, a capsule-shaped lock core block is transversely slidably mounted in the circular hollow hole, the left end portion and the right end portion of the capsule-shaped lock core block are hemispherical, the middle portion between the left end portion and the right end portion of the capsule-shaped lock core block is cylindrical, and the central axis direction of the cylindrical middle portion is transverse; the first rotating disc is provided with a first pit, the orientation of the first pit is transverse, and the concave cavity of the first pit is in a spherical crown shape; the second turntable piece is provided with a second pit, the orientation of the second pit is transverse, and the concave cavity of the second pit is in a spherical crown shape;
the transverse depth of the first concave pit, the transverse depth of the second concave pit, the radius of the hemispherical end part of the capsule-shaped lock core block and the radius of the cylindrical middle part of the capsule-shaped lock core block are all equal to the radius of the circular hollow hole of the partition plate; the transverse distance between the first rotary disc plate and the second rotary disc plate is equal to the transverse dimension of the capsule-shaped lock core block minus the radius of the hemispherical end of the capsule-shaped lock core block;
when the first pit of the first rotating disc plate rotates to be aligned with the capsule-shaped lock core block, the first horizontal operating shaft rotates to the opening position; when the second dimple of the second turntable plate is rotated to align with the capsule-shaped core block, the second horizontal operation shaft is rotated to the opening position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221094585.4U CN217507189U (en) | 2022-05-09 | 2022-05-09 | Double-power incoming line load switch interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221094585.4U CN217507189U (en) | 2022-05-09 | 2022-05-09 | Double-power incoming line load switch interlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217507189U true CN217507189U (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221094585.4U Active CN217507189U (en) | 2022-05-09 | 2022-05-09 | Double-power incoming line load switch interlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217507189U (en) |
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2022
- 2022-05-09 CN CN202221094585.4U patent/CN217507189U/en active Active
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