CN213150615U - Locking device of circuit breaker closing knob of switch cabinet - Google Patents
Locking device of circuit breaker closing knob of switch cabinet Download PDFInfo
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- CN213150615U CN213150615U CN202022651398.9U CN202022651398U CN213150615U CN 213150615 U CN213150615 U CN 213150615U CN 202022651398 U CN202022651398 U CN 202022651398U CN 213150615 U CN213150615 U CN 213150615U
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- circuit breaker
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- closing knob
- fixed shell
- rod
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Abstract
The utility model provides a locking device of a circuit breaker closing knob of a switch cabinet, which comprises a circuit breaker main body, a closing knob, a protective cover plate, a locking rod, a fixed shell, a reset spring, a support plate, a reset connecting rod, a positioning slide rod and a locking connecting rod, wherein the closing knob is arranged at the front side of the circuit breaker main body, the fixed shell is arranged in the front end surface of the circuit breaker main body, the protective cover plate is arranged at the front side of the fixed shell, the positioning slide rod is arranged in the fixed shell, the annular side surface sleeve of the positioning slide rod is provided with the support plate, the reset spring is arranged at the joint of the left side of the upper end surface of the support plate and the inner wall of the fixed shell, the reset connecting rod is arranged at the lower side of the support plate, the locking rod is arranged at the lower side of the locking connecting, the operation is convenient, and the use is safe and reliable.
Description
Technical Field
The utility model discloses a locking device of circuit breaker combined floodgate knob of cubical switchboard belongs to electrical equipment technical field.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, has the function equivalent to the combination of a fuse type switch, an over-under-heat relay and the like, and generally does not need to change parts after breaking fault current.
Among the prior art, current circuit breaker closing knob is not provided with locking structure, and the staff mistake that appears easily bumps the circumstances that leads to circuit breaker closing knob closed, influences the power consumption safety, and the locking device of the circuit breaker closing knob of present urgent need cubical switchboard solves the above-mentioned problem that appears.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be not enough to prior art exists, the utility model aims at providing a locking device of circuit breaker combined floodgate knob of cubical switchboard to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure is convenient for fix a position the locking to circuit breaker combined floodgate knob, and the simple operation uses safe and reliable.
In order to achieve the above purpose, the present invention is realized by the following technical solution: a locking device of a circuit breaker closing knob of a switch cabinet comprises a circuit breaker main body, a closing knob and a convenient locking mechanism, wherein the closing knob is installed on the front side of the circuit breaker main body, the convenient locking mechanism is arranged on the left side of the closing knob, the convenient locking mechanism comprises a protective cover plate, a reset button, a locking rod, a fixed shell, a reset spring, a supporting plate, a reset connecting rod, a positioning sliding rod and a locking connecting rod, the fixed shell is installed inside the front end face of the circuit breaker main body, the protective cover plate is installed on the front side of the fixed shell, the positioning sliding rod is arranged inside the fixed shell, the supporting plate is sleeved on the annular side face of the positioning sliding rod, the reset spring is installed at the joint of the left side face of the upper end face of the supporting plate and the inner wall of the fixed shell, and a locking rod is arranged on the lower side of the locking connecting rod.
Further, the protection cover plate is provided with a clamping plate at the joint with the breaker main body, and a fastening bolt is arranged inside the clamping plate and penetrates through the clamping plate to be fixedly connected with the breaker main body through threads.
Furthermore, a positioning groove is formed in the left side of the annular side face of the closing knob, and the specification of the positioning groove is matched with that of the locking rod.
Furthermore, a limiting baffle is installed at the joint of the locking rod and the fixed shell, and the diameter of the limiting baffle is slightly larger than that of the locking rod.
Furthermore, a sliding sleeve is installed at the joint of the inside of the supporting plate and the positioning slide rod, the inner diameter of the sliding sleeve is the same as the diameter of the positioning slide rod, and mechanical lubricating oil is smeared on the surface of the positioning slide rod.
Furthermore, the joints of the return spring, the inner wall of the fixed shell and the supporting plate are provided with clamping seats, and the specifications of the clamping seats are matched with those of the return spring.
The utility model has the advantages that: the utility model discloses a locking device of circuit breaker combined floodgate knob of cubical switchboard, because of the utility model discloses added protective cover plate, reset button, lock pole, set casing, reset spring, bearing plate, reset connecting rod, location slide bar and locking connecting rod, this design can carry out effectual locking to circuit breaker combined floodgate knob, has solved the problem that original circuit breaker combined floodgate knob use operation is safe inadequately, has improved the utility model discloses an electrical safety nature is used.
Because of protective cover plate is provided with the cardboard with circuit breaker main part junction, cardboard internally mounted has fastening bolt, fastening bolt runs through the cardboard and passes through screw thread fixed connection with the circuit breaker main part, this design is convenient for install fixedly through cardboard and fastening bolt to protective cover plate, because of the inside positioning groove that has seted up in combined floodgate knob annular side left side, positioning groove specification and locking lever specification phase-match, this design is convenient for fix a position the locking lever through positioning groove, install limit baffle because of locking lever and set casing junction, limit baffle diameter slightly is greater than the locking lever diameter, this design is convenient for restrict the position of locking lever through limit baffle, the utility model discloses rational in infrastructure, be convenient for fix a position the locking to circuit breaker combined floodgate knob, the simple operation, it is safe and reliable to use.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of a locking device of a closing knob of a circuit breaker of a switch cabinet according to the present invention;
fig. 2 is the structure schematic diagram of the locking mechanism of the utility model discloses be convenient for among the locking device of the circuit breaker closing knob of cubical switchboard
Fig. 3 is a top cross-sectional view of a mechanism for locking a closing knob of a circuit breaker of a switchgear of the present invention;
FIG. 4 is an enlarged view of A in FIG. 3;
in the figure: 1-a breaker main body, 2-a closing knob, 3-a convenient locking mechanism, 31-a protective cover plate, 32-a reset button, 33-a locking rod, 34-a fixed shell, 35-a reset spring, 36-a support plate, 37-a reset connecting rod, 38-a positioning sliding rod, 39-a locking connecting rod, 311-a clamping plate, 331-a positioning groove, 332-a limit baffle and 361-a sliding sleeve.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1-4, the present invention provides a technical solution: locking device of circuit breaker closing knob of cubical switchboard, including circuit breaker main part 1, closing knob 2 and the locking mechanical system 3 of being convenient for, closing knob 2 is installed to 1 front side of circuit breaker main part, and closing knob 2 left side is provided with the locking mechanical system 3 of being convenient for.
Be convenient for locking mechanical system 3 includes protective cover plate 31, reset button 32, lock pole 33, set casing 34, reset spring 35, bearing plate 36, reset connecting rod 37, location slide bar 38 and locking connecting rod 39, terminal surface internally mounted has set casing 34 before circuit breaker main part 1, set casing 34 installs protective cover plate 31 in the front side, set casing 34 is inside to be provided with location slide bar 38, location slide bar 38 annular side cover is equipped with bearing plate 36, reset spring 35 is installed with set casing 34 inner wall junction in the left side of the bearing plate 36 up end, reset connecting rod 37 is installed to bearing plate 36 downside, reset button 32 is installed to reset connecting rod 37 downside, locking connecting rod 39 is installed on terminal surface right side under bearing plate 36, lock pole 33 is installed to locking connecting rod 39 downside, this design has solved the not safe problem inadequately of original circuit breaker closing knob 2 operation.
A sliding sleeve 361 is installed at the joint of the inside of the supporting plate 36 and the positioning slide rod 38, the inner diameter of the sliding sleeve 361 is the same as the diameter of the positioning slide rod 38, mechanical lubricating oil is smeared on the surface of the positioning slide rod 38, the sliding sleeve 361 facilitates the supporting plate 36 to slide up and down on the annular side face of the positioning slide rod 38, clamping seats are installed at the joints of the reset spring 35, the inner wall of the fixed shell 34 and the supporting plate 36, the specifications of the clamping seats are matched with those of the reset spring 35, and the reset spring 35 is convenient to install and fix.
As an embodiment of the present invention: an operator firstly rotates the closing knob 2, the positioning groove 331 in the closing knob 2 is rotated to the position of the locking rod 33, the locking rod 33 is ejected forwards under the elastic force of the reset spring 35, the locking rod 33 is pushed into the positioning groove 331, the closing knob 2 is locked through the locking rod 33, the closing knob 2 is prevented from being rotated by misoperation of the operator, when the locking state needs to be relieved, the reset button 32 is pressed downwards, the reset button 32 drives the supporting plate 36 to move towards the upper side on the annular side face of the positioning sliding rod 38, the locking rod 33 is driven to move upwards through the supporting plate 36, the locking rod 33 is separated from the positioning groove 331, and then the closing knob 2 is rotated.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. Locking device of circuit breaker closing knob of cubical switchboard, including circuit breaker main part, closing knob and the locking mechanical system of being convenient for, its characterized in that: a switching-on knob is installed on the front side of the breaker main body, and a locking mechanism is arranged on the left side of the switching-on knob;
the convenient locking mechanism comprises a protective cover plate, a reset button, a locking rod, a fixed shell, a reset spring, a supporting plate, a reset connecting rod, a positioning slide rod and a locking connecting rod, wherein the fixed shell is arranged inside the front end face of the breaker main body, the protective cover plate is arranged on the front side of the fixed shell, the positioning slide rod is arranged inside the fixed shell, the supporting plate is sleeved on the annular side face of the positioning slide rod, the reset spring is arranged at the joint of the left side of the upper end face of the supporting plate and the inner wall of the fixed shell, the reset connecting rod is arranged on the lower side of the supporting plate, the reset button is arranged on the lower side of the reset connecting rod, the.
2. The locking device of a closing knob of a circuit breaker of a switchgear according to claim 1, characterized in that: the protection apron is provided with the cardboard with circuit breaker main part junction, cardboard internally mounted has fastening bolt, fastening bolt runs through the cardboard and passes through screw thread fixed connection with the circuit breaker main part.
3. The locking device of a closing knob of a circuit breaker of a switchgear according to claim 1, characterized in that: and a positioning groove is formed in the left side of the annular side face of the closing knob, and the specification of the positioning groove is matched with that of the locking rod.
4. The locking device of a closing knob of a circuit breaker of a switchgear according to claim 1, characterized in that: limiting baffle plates are installed at the joints of the locking rods and the fixed shell, and the diameters of the limiting baffle plates are slightly larger than the diameters of the locking rods.
5. The locking device of a closing knob of a circuit breaker of a switchgear according to claim 1, characterized in that: a sliding sleeve is arranged at the joint of the inner part of the bearing plate and the positioning slide rod, the inner diameter of the sliding sleeve is the same as the diameter of the positioning slide rod, and mechanical lubricating oil is coated on the surface of the positioning slide rod.
6. The locking device of a closing knob of a circuit breaker of a switchgear according to claim 1, characterized in that: the joint of the return spring, the inner wall of the fixed shell and the bearing plate is provided with a clamping seat, and the specification of the clamping seat is matched with that of the return spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022651398.9U CN213150615U (en) | 2020-11-16 | 2020-11-16 | Locking device of circuit breaker closing knob of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022651398.9U CN213150615U (en) | 2020-11-16 | 2020-11-16 | Locking device of circuit breaker closing knob of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213150615U true CN213150615U (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022651398.9U Active CN213150615U (en) | 2020-11-16 | 2020-11-16 | Locking device of circuit breaker closing knob of switch cabinet |
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| CN (1) | CN213150615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594759A (en) * | 2021-08-02 | 2021-11-02 | 吴建华 | Control device of small-sized breaker of explosion-proof distribution box |
-
2020
- 2020-11-16 CN CN202022651398.9U patent/CN213150615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113594759A (en) * | 2021-08-02 | 2021-11-02 | 吴建华 | Control device of small-sized breaker of explosion-proof distribution box |
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