CN210110579U - Medium-voltage switch cabinet mechanical interlocking mechanism - Google Patents
Medium-voltage switch cabinet mechanical interlocking mechanism Download PDFInfo
- Publication number
- CN210110579U CN210110579U CN201921267090.5U CN201921267090U CN210110579U CN 210110579 U CN210110579 U CN 210110579U CN 201921267090 U CN201921267090 U CN 201921267090U CN 210110579 U CN210110579 U CN 210110579U
- Authority
- CN
- China
- Prior art keywords
- rod
- cabinet
- locking
- execution
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a cabinet machinery interlock mechanism is switched to middling pressure, carry out cabinet, position transmission device, interlocking box, shutting link mechanism and blocking device including first execution cabinet, second. The utility model discloses can not influence the maintenance of taking out of frame circuit breaker, can not influence the circuit breaker performance simultaneously; after the equipment fixing, can not exert an influence to the circuit breaker, also do not influence shaking into, taking out of circuit breaker, the circuit breaker body still is an solitary individuality, only interlocks at the operating position, can pull away from the cabinet body after taking out and overhaul, maintain etc..
Description
Technical Field
The utility model relates to an electric, middling pressure cabinet, dual supply field, more specifically say, relate to a middling pressure switches cabinet machinery interlock mechanism.
Background
Along with the development of national economy, the power supply safety problem is more and more emphasized, and the potential safety hazard and the economic loss caused by power failure accidents are more and more large. For hospitals, airports, banks, securities, fire fighting and other important places in the infrastructure of China, once a power failure accident occurs, the consequences are very serious, so that the application of the dual-power automatic transfer switch plays an important role.
The dual-power automatic transfer switch is mainly used in an emergency power supply system and is a switching appliance for automatically switching a load circuit from one power supply to another (standby) power supply so as to ensure continuous and reliable operation of important loads. Therefore, ATSE is often applied to important power utilization places, and the product reliability is particularly important. Failure of a transition can cause one of two hazards, short circuit between power sources or power failure (even brief power failure) of important loads, with serious consequences, which not only cause economic losses (production stoppages, financial disruptions) but also can cause social problems (life and safety risks).
At present, a dual-power automatic transfer switch is mainly applied to a low-voltage tail end power supply system, two or three circuit breakers and a control system are generally adopted in a medium-voltage power supply system to build a backup automatic switching type dual-power supply or a two-inlet-wire one-bus-coupler, two or three circuit breakers are electrically interlocked to ensure that two paths of power supplies cannot be simultaneously connected with a load, mechanical interlocking is not provided, and when the conditions of logic errors, misoperation and the like occur, great harm can be caused to power supply safety.
In summary, there is a need for a mechanism that can facilitate installation and achieve mechanical interlocking between circuit breakers without changing a medium voltage switch cabinet greatly and affecting the main performance of the circuit breakers.
Disclosure of Invention
The utility model aims to solve the technical problem that to prior art not enough, provide one kind and increase mechanical interlocking mechanism on original electric interlocking to ensure that the circuit breaker can not close a floodgate simultaneously, reduced the middling pressure that the power supply accident takes place and switched over cabinet mechanical interlocking mechanism, concrete scheme is as follows:
the utility model relates to a cabinet machinery interlock mechanism is switched to middling pressure, its characteristics are: the interlocking device comprises a first execution cabinet, a second execution cabinet, a position transmission device, an interlocking box, a locking connecting rod mechanism and a locking device; the position transmission device is arranged on the first execution cabinet and comprises a throwing rod which is matched with a transmission shaft of a breaker of the first execution cabinet to rotate, a bearing seat is sleeved outside the throwing rod and fixedly connected with a shell of the breaker of the first execution cabinet, a bearing is arranged between the bearing seat and the throwing rod, a throwing arm is arranged at one end of the throwing rod, which is far away from the transmission shaft of the breaker of the first execution cabinet, and the throwing arm is fixedly connected with the throwing rod; the interlocking box is arranged on the cabinet body of the first execution cabinet and comprises a box body, the box body consists of a bottom plate and a cover plate, a sliding block matched with the position transfer device input arm is arranged between the cover plate and the bottom plate, the sliding block extends upwards out of the box body, a guide rod is arranged at the bottom of the sliding block, and a guide groove convenient for the guide rod to move up and down is arranged in the box body; the locking device is arranged in a lower cabinet body of the second execution cabinet and comprises a locking rod matched with a closing shifting piece of a circuit breaker of the second execution cabinet, a locking fixing plate fixedly connected with a shell of the circuit breaker of the second execution cabinet is arranged in the middle of the locking rod, a locking rod through hole through which the locking rod passes is formed in the locking fixing plate, a lifting hook is arranged at the top of the locking rod, a locking stop block is fixed between the lifting hook and the locking fixing plate, and a locking rod reset spring is arranged between the locking stop block and the locking fixing plate; the locking linkage mechanism is installed in the upper cabinet body of the second execution cabinet and comprises a transverse connecting rod, a vertical connecting rod, a mounting plate fixedly connected with the second execution cabinet body and a connecting seat matched with a locking rod lifting hook, the middle of the transverse connecting rod is connected with the mounting plate through the vertical hinged rod, one end of the transverse connecting rod is hinged to the upper end of the vertical connecting rod, the other end of the transverse connecting rod is connected with a sliding block of an interlocking box through a soft axis, the connecting seat is fixedly connected with the lower end of the vertical connecting rod, a connecting plate is sleeved on the vertical connecting rod, a connecting rod through hole through which the vertical connecting rod passes is formed in the connecting plate, the connecting plate is fixedly connected with the mounting plate through a guide frame, and a connecting seat reset spring is sleeved on the vertical.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, be equipped with in the one end that drops into the pole with first execution cabinet circuit breaker transmission shaft complex connecting spline.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, the guide way comprises the butt joint of bottom plate semi-conductive rail groove and the apron semi-conductive rail groove of setting on the apron of setting on the bottom plate.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, open on the connecting seat have with lifting hook complex installation notch.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) after the equipment is installed, the circuit breaker cannot be influenced, and the shaking-in and the pulling-out of the circuit breaker cannot be influenced. The circuit breaker body is still an independent individual body, is interlocked only at a working position, and can be pulled away from the cabinet body for maintenance and the like after being pulled out;
(2) the circuit breaker is convenient to install, the circuit breaker does not need to be changed, the circuit breaker can be directly installed on the existing circuit breaker, and the performance of the circuit breaker is not influenced;
(3) the closing state of the circuit breaker is transmitted to the closing-locking shifting piece on the other circuit breaker through the soft axis, and meanwhile, the closing coil of the other circuit breaker is electrically locked, so that the coil damage caused by the fact that a control system continuously sends a closing command is prevented;
(4) for two non-adjacent circuit breaker cabinets, the mechanical interlocking can be realized only by replacing the soft axis;
(5) the existing spare power automatic switching device can be subjected to mechanical interlocking transformation.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings required in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the interlock box;
FIG. 3 is a schematic view of the position imparting mechanism;
FIG. 4 is a schematic structural view of the locking linkage;
fig. 5 is a schematic structural view of the locking device.
Detailed Description
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.
As shown in fig. 1, 2, 3, 4, and 5, the mechanical interlocking mechanism for medium voltage switch cabinets provided in this embodiment includes a first execution cabinet 1, a second execution cabinet 7, a position transmission device 3, an interlocking box 4, a locking linkage mechanism 6, and a locking device 5; the position transmission device is arranged on the first execution cabinet 1 and comprises a throwing rod 11 which is matched with a first execution cabinet breaker transmission shaft to rotate, a bearing seat is sleeved outside the throwing rod 11, the bearing seat 12 is fixedly connected with a first execution cabinet breaker shell, a bearing is arranged between the bearing seat 12 and the throwing rod, a throwing arm 13 is arranged at one end of the throwing rod, which is far away from the first execution cabinet breaker transmission shaft, and the throwing arm 13 is fixedly connected with the throwing rod; the interlocking box is arranged on the cabinet body of the first execution cabinet 1, the interlocking box 4 comprises a box body, the box body consists of a bottom plate 9 and a cover plate 10, a sliding block 8 matched with the position transfer device input arm is arranged between the cover plate 10 and the bottom plate 9, the sliding block 8 extends upwards out of the box body, a guide rod is arranged at the bottom of the sliding block 8, and a guide groove convenient for the guide rod to move up and down is arranged in the box body; the locking device is arranged in a lower cabinet body of the second execution cabinet, the locking device comprises a locking rod 22 matched with a closing shifting piece of a circuit breaker of the second execution cabinet, a locking fixing plate 25 fixedly connected with a shell of the circuit breaker of the second execution cabinet is arranged in the middle of the locking rod 22, a locking rod through hole through which the locking rod passes is formed in the locking fixing plate 25, a lifting hook 21 is arranged at the top of the locking rod, a locking stop block 23 is fixed between the lifting hook 21 and the locking fixing plate, and a locking rod reset spring 24 is arranged between the locking stop block and the locking fixing plate; the locking linkage mechanism is installed in the upper portion cabinet body of the second execution cabinet, and the locking linkage mechanism comprises a transverse connecting rod 15, a vertical connecting rod 17, a mounting plate 14 fixedly connected with the second execution cabinet body and a connecting seat 18 matched with a locking rod lifting hook, the middle of the transverse connecting rod is connected with the mounting plate through a vertical hinged rod 16, one end of the transverse connecting rod is hinged to the upper end of the vertical connecting rod, the other end of the transverse connecting rod is connected with a sliding block of an interlocking box through a soft axis 2, the connecting seat is fixedly connected with the lower end of the vertical connecting rod, a connecting plate 19 is sleeved on the vertical connecting rod, a connecting rod through hole through which the vertical connecting rod passes is formed in the connecting plate 19, the connecting plate 19 is fixedly connected with the mounting plate through a guide frame, and a connecting seat reset spring. The interlocking box is arranged near the position transfer device, the position of the interlocking box can be adjusted by adjusting the starting angle of the position transfer device according to actual requirements, and the interlocking box is generally arranged above or below the position transfer device; the utility model discloses a two disconnected circuit breakers of each other increase mechanical interlocking, and after one of them arbitrary combined floodgate, another can ensure only one can close a floodgate because the shutting can't close a floodgate. After the mechanical interlocking device is added, the drawing-out maintenance of the frame circuit breaker can not be influenced, and the performance of the circuit breaker can not be influenced. One end of the input rod is provided with a connecting spline matched with a transmission shaft of the first executive cabinet breaker. The guide groove is formed by butt joint of a bottom plate semi-conductor rail groove arranged on the bottom plate and a cover plate semi-conductor rail groove arranged on the cover plate. The connecting seat is provided with an installation notch matched with the lifting hook.
One end of the soft axis 2 is connected with the slide block of the interlocking box, and the other end is connected with the transverse connecting rod of the locking connecting rod mechanism; the locking link mechanism can drive the locking device to lock the circuit breaker; the position transmission device is arranged on a transmission shaft of the circuit breaker and can correspondingly rotate and reset along with the switching-on and switching-off of the circuit breaker; the position transfer device is used for turning the input arm when the circuit breaker is switched on, pressing down the sliding block of the interlocking box, pulling the soft axis, and driving the locking connecting rod mechanism to press down the locking device by the soft axis to block a switching-on poking piece of the circuit breaker; the position transmission device is reset by the input arm when the breaker is opened, and a reset spring is arranged in the interlocking box. The slide block of the interlocking box resets under the action of the spring, the locking connecting rod mechanism is not pulled by the soft axis any more, and resets under the action of the reset spring of the connecting seat, the locking device resets under the action of the reset spring of the locking rod, and the locking rod leaves a switching-on poking piece of the circuit breaker to release locking; the mechanical interlocking mechanism only takes effect when the circuit breaker is at a working position, is invalid at a testing position, does not influence the shaking-in and shaking-out of the circuit breaker, and does not need to perform special processing on the circuit breaker during installation.
Claims (4)
1. The utility model provides a cabinet machinery interlock mechanism is switched to middling pressure which characterized in that: the interlocking device comprises a first execution cabinet, a second execution cabinet, a position transmission device, an interlocking box, a locking connecting rod mechanism and a locking device;
the position transmission device is arranged on the first execution cabinet and comprises a throwing rod which is matched with a transmission shaft of a breaker of the first execution cabinet to rotate, a bearing seat is sleeved outside the throwing rod and fixedly connected with a shell of the breaker of the first execution cabinet, a bearing is arranged between the bearing seat and the throwing rod, a throwing arm is arranged at one end of the throwing rod, which is far away from the transmission shaft of the breaker of the first execution cabinet, and the throwing arm is fixedly connected with the throwing rod;
the interlocking box is arranged on the cabinet body of the first execution cabinet and comprises a box body, the box body consists of a bottom plate and a cover plate, a sliding block matched with the position transfer device input arm is arranged between the cover plate and the bottom plate, the sliding block extends upwards out of the box body, a guide rod is arranged at the bottom of the sliding block, and a guide groove convenient for the guide rod to move up and down is arranged in the box body;
the locking device is arranged in a lower cabinet body of the second execution cabinet and comprises a locking rod matched with a closing shifting piece of a circuit breaker of the second execution cabinet, a locking fixing plate fixedly connected with a shell of the circuit breaker of the second execution cabinet is arranged in the middle of the locking rod, a locking rod through hole through which the locking rod passes is formed in the locking fixing plate, a lifting hook is arranged at the top of the locking rod, a locking stop block is fixed between the lifting hook and the locking fixing plate, and a locking rod reset spring is arranged between the locking stop block and the locking fixing plate;
the locking linkage mechanism is installed in the upper cabinet body of the second execution cabinet and comprises a transverse connecting rod, a vertical connecting rod, a mounting plate fixedly connected with the second execution cabinet body and a connecting seat matched with a locking rod lifting hook, the middle of the transverse connecting rod is connected with the mounting plate through the vertical hinged rod, one end of the transverse connecting rod is hinged to the upper end of the vertical connecting rod, the other end of the transverse connecting rod is connected with a sliding block of an interlocking box through a soft axis, the connecting seat is fixedly connected with the lower end of the vertical connecting rod, a connecting plate is sleeved on the vertical connecting rod, a connecting rod through hole through which the vertical connecting rod passes is formed in the connecting plate, the connecting plate is fixedly connected with the mounting plate through a guide frame, and a connecting seat reset spring is sleeved on the vertical.
2. The medium voltage switching cabinet mechanical interlock mechanism of claim 1, wherein: one end of the input rod is provided with a connecting spline matched with a transmission shaft of the first executive cabinet breaker.
3. The medium voltage switching cabinet mechanical interlock mechanism of claim 1, wherein: the guide groove is formed by butt joint of a bottom plate semi-conductor rail groove arranged on the bottom plate and a cover plate semi-conductor rail groove arranged on the cover plate.
4. The medium voltage switching cabinet mechanical interlock mechanism of claim 1, wherein: the connecting seat is provided with an installation notch matched with the lifting hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921267090.5U CN210110579U (en) | 2019-08-07 | 2019-08-07 | Medium-voltage switch cabinet mechanical interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921267090.5U CN210110579U (en) | 2019-08-07 | 2019-08-07 | Medium-voltage switch cabinet mechanical interlocking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210110579U true CN210110579U (en) | 2020-02-21 |
Family
ID=69567436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921267090.5U Active CN210110579U (en) | 2019-08-07 | 2019-08-07 | Medium-voltage switch cabinet mechanical interlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210110579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289184A (en) * | 2019-08-07 | 2019-09-27 | 传蔚电气(上海)有限公司 | Middle crush-cutting changes cabinet mechanical interlock mechanism |
-
2019
- 2019-08-07 CN CN201921267090.5U patent/CN210110579U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289184A (en) * | 2019-08-07 | 2019-09-27 | 传蔚电气(上海)有限公司 | Middle crush-cutting changes cabinet mechanical interlock mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210110579U (en) | Medium-voltage switch cabinet mechanical interlocking mechanism | |
| CN204145068U (en) | A kind of double-power supply switching device | |
| CN112072775B (en) | Single spare power automatic switching system adaptive to 10kV bus operation mode | |
| CN205159152U (en) | Dual -power automatic transfer switch | |
| CN206201996U (en) | A kind of perambulator drive circuit | |
| CN110011326B (en) | Method for reducing capacity investment of capacitance compensation device in single bus segmented wiring line | |
| CN206758379U (en) | A kind of intelligent breaker with remote control function | |
| CN203014477U (en) | Automatic switching control device for alternating current lighting power failure | |
| CN202190004U (en) | Low voltage power distribution cabinet control circuit | |
| CN201985607U (en) | Standby power throw-in device | |
| CN201345563Y (en) | High-voltage double-power automatic transfer device | |
| CN211063408U (en) | Power supply switching device for coal mine auxiliary well P L C control cabinet | |
| CN112072776B (en) | Spare power automatic switching system adaptive to 10kV bus wiring mode change | |
| CN110195821B (en) | Hydraulic substation and electromagnetic valve control device | |
| CN113328658A (en) | Electrical control system of high-voltage frequency converter bypass wiring one-to-two mode | |
| CN206961693U (en) | A kind of power transformation operation disconnecting switch control device | |
| CN215186053U (en) | Device for providing dual power supply for underground elevator visual intercom communication equipment | |
| CN101630586B (en) | Air switch preventing voltage transformer secondary side anti-charge | |
| CN206422387U (en) | A kind of unit power distribution cabinet mother linked system | |
| CN110289184A (en) | Middle crush-cutting changes cabinet mechanical interlock mechanism | |
| CN209298982U (en) | A kind of direct current cabinet is mutually for device | |
| CN113595223B (en) | Power-off switching system with multiple areas being standby power supplies | |
| CN203466622U (en) | Dual power double channel automatic switching device for decomposer mixer motor | |
| CN215344413U (en) | Electrical control system of high-voltage frequency converter bypass wiring one-to-two mode | |
| CN219477667U (en) | Energy storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |