CN216212990U - Fuse state indicating device - Google Patents
Fuse state indicating device Download PDFInfo
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- CN216212990U CN216212990U CN202122651356.XU CN202122651356U CN216212990U CN 216212990 U CN216212990 U CN 216212990U CN 202122651356 U CN202122651356 U CN 202122651356U CN 216212990 U CN216212990 U CN 216212990U
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Abstract
The utility model relates to a fuse state indicating device, which is connected with a built-in structure of a fuse, and comprises a tripping connecting sheet, a connecting rod and a separating brake connecting rod, wherein the connecting sheet is arranged on the connecting rod, and two ends of the connecting sheet are respectively connected and linked with the tripping connecting sheet and the separating brake connecting rod to form a lever mechanism taking the connecting rod as a fulcrum; the number of the tripping connecting pieces and the number of the connecting pieces are three, and the tripping connecting pieces are provided with self-resetting contact switches which are matched with the interlocking pieces to form a three-phase indicating structure. The three tripping connecting pieces with the self-resetting contact switches are designed, and the tripping connecting pieces are connected and linked with the opening connecting rod through the connecting pieces and the connecting lock rods, so that the three-phase separate indication function is realized.
Description
Technical Field
The utility model relates to a fuse state indicating device for respectively indicating the opening and closing states of a plurality of fuses in a vacuum load switch structure.
Background
Most of existing vacuum load switches are provided with three fuses, the opening and closing state of each fuse is judged integrally only by one structure, and then the three fuses are detected respectively, so that subsequent maintenance is carried out, and the cost is increased.
Therefore, how to prompt the on/off state of each fuse is one of the technical problems to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fuse state indicating device which can respectively indicate the opening and closing states of a plurality of fuses in a vacuum load switch structure.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a fuse state indicating device, its and fuse built-in structure are connected, and this fuse state indicating device includes dropout connection piece, lock link plate, lock link rod and separating brake connecting rod, wherein:
the linkage piece is arranged on the linkage rod, and two ends of the linkage piece are respectively connected and linked with the tripping connection piece and the opening connecting rod to form a lever mechanism taking the linkage rod as a fulcrum;
the number of the tripping connecting pieces and the number of the connecting pieces are three, and the tripping connecting pieces are provided with self-resetting contact switches which are matched with the interlocking pieces to form a three-phase indicating structure.
Further preferred is: the self-reset contact switch is a magnetic blow type self-reset contact switch.
Further preferred is: a strip-shaped sliding groove is vertically formed in the tripping connecting piece, one end of the connecting lock piece is slidably arranged in the strip-shaped sliding groove, and one end of the interlocking piece performs reciprocating sliding displacement along the direction of the strip-shaped sliding groove;
the self-reset contact switch is positioned on the sliding displacement stroke of the connecting lock piece.
Further preferred is: the L shape body of rod of separating brake connecting rod for invering, it includes horizontal pole and vertical pole, wherein:
the transverse rod is positioned at the other end of the interlocking sheet and is fixed at the top end of the vertical rod;
the vertical rod is provided with a return spring, and the return spring is close to the top end of the vertical rod.
Further preferred is: it is three link locking plate including first link locking plate and second in linking the locking plate, wherein:
the first connecting piece is arranged close to the end of the connecting and locking rod, the middle part of the first connecting piece is fixed on the connecting and locking rod, and the end part of the second connecting piece is fixed on the connecting and locking rod;
the second interlocking sheet is arranged beside the first interlocking sheet; the quantity of second locking piece is two, and interval distribution.
Further preferred is: fuse built-in structure includes fuse firing pin, impinger, dropout pivot and vertical connecting rod, wherein:
the fuse firing pin is disposed within the fuse;
the striker is arranged at one end of the fuse and is driven by a fuse firing pin;
the tripping rotating shaft is hinged on the vertical connecting rod, and the vertical connecting rod is matched with the impactor;
the lower end of the vertical connecting rod is fixed with the tripping connecting sheet.
After adopting the technical scheme, compared with the background technology, the utility model has the following advantages:
the utility model designs three tripping connecting sheets with self-resetting contact switches, wherein the tripping connecting sheets are connected and linked with the opening connecting rod through connecting sheets and connecting rods, so that the three-phase separate indication function is realized, namely: when the fuse of any phase of three phases is fused, the other two phases of self-reset contact switches can not be switched, and only the fault indicating lamp of the fused phase can be lighted, so that the fused fuse can be quickly and effectively distinguished and processed, the maintenance and repair cost of the fuse is effectively reduced, and the technical problem in the prior art is solved.
Drawings
FIG. 1 is a schematic diagram of a fuse state indicating apparatus according to an embodiment of the present invention;
fig. 2 is a schematic view of an assembly structure of the connecting plate and the connecting rod in the embodiment of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the apparatus or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
As shown in fig. 1, the present invention discloses a fuse state indicating apparatus 200 connected to a fuse built-in structure 100; the fuse built-in structure 100 is a structure for realizing opening and closing of a fuse, and includes a fuse striker, a striker 110, and a tripping rotating shaft 130, wherein the fuse striker is disposed in the fuse, and passes through a fuse limiting hole 120 to strike the striker 110; the striker 110 is disposed at one end of the fuse and is driven by a fuse striker; the trip rotating shaft 130 is hinged to a shaft rod, the shaft rod is hinged to a vertical connecting rod 140, and the vertical connecting rod 140 is matched with the striker 110; a trip link 210 is secured to the lower end of the vertical link 140.
As shown in fig. 1, the fuse state indicating device 200 includes a trip connecting tab 210, an interlocking tab 220, an interlocking bar 230, and a trip link 240.
As shown in fig. 1, the trip connecting plate 210 is a rectangular plate fixed to the lower end of the vertical connecting rod 140 to form a linkage structure, a strip-shaped sliding groove 211 is formed along a side edge of the trip connecting plate 210, the strip-shaped sliding groove 211 is preferably a through-hole body, the strip-shaped sliding groove 211 is vertically opened, a self-reset contact switch 212 is arranged beside the strip-shaped sliding groove 211, and preferably: the self-reset contact switch 212 is a magnetic blow-out type self-reset contact switch;
it should be noted that: the number of the fuse built-in structures 100 is three, and the three fuse built-in structures correspond to three fuses of the vacuum load switch respectively.
As shown in fig. 1 and 2, the interlock lever 230 has a straight lever structure, and the interlock lever 230 is axially disposed along the distribution direction of the three fuses.
As shown in fig. 1 and 2, the locking piece 220 is fixed to the locking bar 230, one end of the locking piece 220 is disposed in the bar-shaped sliding groove 211 and is slidably connected to the bar-shaped sliding groove 211, and the other end of the locking piece 220 is engaged with the opening connecting rod 240; specifically, the method comprises the following steps: the locking piece 220 comprises a connecting section and a control section which are integrally connected, the connecting section is fixed on the locking bar 230, the connecting end is a flat section, and the side with larger area is fixed on the locking bar 230; the control section is a flat section, and the side surface with larger area of the control section faces the tripping connecting sheet 210;
it should be noted that: the self-reset contact switch 212 is located beside the bar-shaped sliding groove 211 and is arranged on the stroke of the sliding displacement of the connecting lock piece 220.
As shown in fig. 1 and 2, the number of the locking pieces 220 is three, and three fuses and three fuse built-in structures 100 are provided; specifically, the method comprises the following steps: it is three link locking piece 220 interval distribution, it is three link locking piece 220 includes first link locking piece 221 and two second link locking pieces 222, and the length of first link locking piece 221 is greater than the length that the second linked locking piece 222, and the middle part of first link locking piece 221 is fixed in link locking on the pole 230, the second is linked the end fixing of locking piece 222 and is in link locking piece 220 is last.
As shown in fig. 1 and 2, the opening link 240 is sleeved with a return spring and presses the other end of the link plate 220 to form a lever-type indicating structure; the opening connecting rod 240 is an inverted L-shaped rod body and comprises a transverse rod and a vertical rod, wherein the transverse rod is pressed at one end of the connecting lock piece 220 and is fixed at the top end of the vertical rod; the vertical rod is provided with a return spring, and the return spring is close to the top end of the vertical rod.
As shown in fig. 1 and 2, the interlock lever 230 serves as a fulcrum; the linking piece 220 is used as a lever, one end of the linking piece is slidably connected to the strip-shaped chute 211 of the tripping connecting piece 210, and the other end of the linking piece 220 is pressed down by the opening connecting rod 240 to form a linking piece 220 lever type linkage structure.
As shown in fig. 1 and 2, when the fuse is blown, the switch is opened and cannot be closed again through the fuse built-in structure 100, the fuse built-in structure 100 is in matching linkage with a tripping interlocking piece 220, an interlocking piece 220, a linkage rod 230 and a tripping connecting rod 240 in sequence, wherein the tripping interlocking piece 220 is provided with a self-resetting contact switch 212, the number of the tripping interlocking pieces 220 is three, and the tripping interlocking pieces correspond to three fuses, wherein: when a phase fuse is fused, the self-reset contact switch 212 provided by the utility model can switch the switching point immediately, and the indicator lamp is turned on, the switching control loop is disconnected, the switch can not be electrically switched on, and the remaining two contacts can not be switched accordingly; therefore, when the three-phase split-phase indication function is provided, when the fuse of any one of the three phases is blown, the other two phases of the self-reset contact switches 212 are not switched, and only the fault indication lamp of the blown phase is lighted, so that the blown fuse can be quickly and effectively distinguished and processed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. Fuse state indicating device, its characterized in that: it is connected with fuse built-in structure, and this fuse state indicating device includes dropout connection piece, lock piece, interlock pole and separating brake connecting rod, wherein:
the linkage piece is arranged on the linkage rod, and two ends of the linkage piece are respectively connected and linked with the tripping connection piece and the opening connecting rod to form a lever mechanism taking the linkage rod as a fulcrum;
the number of the tripping connecting pieces and the number of the connecting pieces are three, the tripping connecting pieces are provided with self-resetting contact switches, and the tripping connecting pieces are matched with the interlocking pieces to form a three-phase indicating structure.
2. A fuse state indicating device in accordance with claim 1, wherein: the self-reset contact switch is a magnetic blow type self-reset contact switch.
3. A fuse state indicating device in accordance with claim 1, wherein: a strip-shaped sliding groove is vertically formed in the tripping connecting piece, one end of the connecting lock piece is slidably arranged in the strip-shaped sliding groove, and one end of the interlocking piece performs reciprocating sliding displacement along the direction of the strip-shaped sliding groove;
the self-reset contact switch is positioned on the sliding displacement stroke of the connecting lock piece.
4. A fuse state indicating device in accordance with claim 3, wherein: the L shape body of rod of separating brake connecting rod for invering, it includes horizontal pole and vertical pole, wherein:
the transverse rod is positioned at the other end of the interlocking sheet and is fixed at the top end of the vertical rod;
the vertical rod is provided with a return spring, and the return spring is close to the top end of the vertical rod.
5. A fuse state indicating device in accordance with claim 1, wherein: it is three link locking plate including first link locking plate and second in linking the locking plate, wherein:
the first connecting piece is arranged close to the end of the connecting and locking rod, the middle part of the first connecting piece is fixed on the connecting and locking rod, and the end part of the second connecting piece is fixed on the connecting and locking rod;
the second interlocking sheet is arranged beside the first interlocking sheet; the quantity of second locking piece is two, and interval distribution.
6. A fuse state indicating device in accordance with claim 1, wherein: fuse built-in structure includes fuse firing pin, impinger, dropout pivot and vertical connecting rod, wherein:
the fuse firing pin is disposed within the fuse;
the striker is arranged at one end of the fuse and is driven by a fuse firing pin;
the tripping rotating shaft is hinged on the vertical connecting rod, and the vertical connecting rod is matched with the impactor;
the lower end of the vertical connecting rod is fixed with the tripping connecting sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122651356.XU CN216212990U (en) | 2021-11-01 | 2021-11-01 | Fuse state indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122651356.XU CN216212990U (en) | 2021-11-01 | 2021-11-01 | Fuse state indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216212990U true CN216212990U (en) | 2022-04-05 |
Family
ID=80898424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122651356.XU Active CN216212990U (en) | 2021-11-01 | 2021-11-01 | Fuse state indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216212990U (en) |
-
2021
- 2021-11-01 CN CN202122651356.XU patent/CN216212990U/en active Active
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