CN214848269U - Visual breakpoint isolator box misoperation prevention interlocking device - Google Patents
Visual breakpoint isolator box misoperation prevention interlocking device Download PDFInfo
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- CN214848269U CN214848269U CN202120581563.XU CN202120581563U CN214848269U CN 214848269 U CN214848269 U CN 214848269U CN 202120581563 U CN202120581563 U CN 202120581563U CN 214848269 U CN214848269 U CN 214848269U
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Abstract
The utility model discloses a visual breakpoint isolator case prevents maloperation interlock belongs to the electrical design field, the power distribution box comprises a box body, be provided with isolator in the box, be provided with the handle connecting rod on the box, the handle connecting rod sets up the rotatory setting on class at the box, and the inside one end and the isolator of handle connecting rod are connected, are provided with travel switch in the box, and travel switch's normally closed point concatenates in external motor emergency stop control circuit, is provided with the rotatory overcoat of contact on the handle connecting rod, and the outside of the rotatory overcoat of contact is provided with the bump that triggers that the interval set up. The utility model discloses the structure is simpler, can reduce the manufacturing cost of VCS case, establishes ties travel switch normal open point in electrical control return circuit, has realized even if also can earlier the function of separating brake behind the off-set under the maloperation condition, has eliminated former electromagnetic lock and has easily burnt out the problem that leads to preventing the maloperation function failure because of long-time circular telegram, has effectively avoided causing the conflagration or hindering people's safety risk because of the load-carrying operation arc-drawing.
Description
Technical Field
The utility model relates to the field of electronic technology, especially, relate to visual breakpoint isolator case prevents maloperation interlock.
Background
The VCS box (fully-known as a visual breakpoint isolating switch box) is a switch box for overhauling, emergency disconnection and on-site safe power failure of industrial field electric equipment, ensures that the on-off state of a switch contact is clear at a glance, and has the function of on-site listing and locking, thereby protecting the safety of machinery equipment and people. The existing VCS box mostly adopts an electromagnetic lock to realize the function of preventing misoperation of the isolating switch through mechanical interlocking, namely, under the condition that the isolating switch is electrified, the electromagnetic lock is electrified and passes through the mechanical interlocking, so that manual operation cannot be performed on/off operation.
Adopt the electromagnetic lock to realize the function that isolator prevented the maloperation through mechanical interlocking, this scheme shortcoming lies in that the long-time circular telegram of electromagnetic lock easily takes place the phenomenon that the electromagnet coil burns out, leads to preventing the maloperation function inefficacy, can't avoid the load operation completely to appear drawing the arc because of the load operation and cause conflagration or injure people's safety risk.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a visual breakpoint isolator case prevents maloperation interlock solves current electromagnetic lock and easily takes place the phenomenon that the electromagnet coil burns out because of long-time circular telegram, leads to preventing the technical problem of maloperation function inefficacy.
According to the characteristic that the isolating switch of the VCS box cannot be operated with load, the electromagnetic lock and the mechanical interlocking mechanism are changed into the electromagnetic lock and the mechanical interlocking mechanism which are electrically interlocked by using the travel switch, so that the misoperation during manual opening and closing of the load can be effectively prevented after the design is applied, and the safety of equipment and personnel is ensured.
Visual breakpoint isolator case prevents maloperation interlock, the power distribution box comprises a box body, be provided with isolator in the box, be provided with the handle connecting rod on the box, the handle connecting rod sets up the rotatory setting on class at the box, the inside one end and the isolator of handle connecting rod are connected, be provided with travel switch in the box, travel switch's normally closed point series connection is in outside motor emergency stop control circuit, be provided with the rotatory overcoat of contact on the handle connecting rod, the outside of the rotatory overcoat of contact is provided with the bump that triggers that the interval set up, travel switch's the head that triggers sets up with the outside contact of the rotatory overcoat of contact.
The travel switch is matched with the operating handle connecting rod, a normally open point of the travel switch is connected into an electrical control loop in series for electrical interlocking, the travel switch is adjusted to act when the isolating switch handle is opened and closed to rotate to about 40 degrees according to the characteristic that a main contact of the isolating switch acts when the handle is opened and closed to rotate to 90 degrees, and an interlocking superior power supply contactor is disconnected, so that the pre-opening function of first power failure and then opening is realized.
Furthermore, a fixing frame is arranged in the box body, the fixing frame is of a concave frame structure and is transversely arranged on the inner side of the box body, the handle connecting rod penetrates through the fixing frame and is rotatably arranged, and the contact rotating sleeve is arranged inside the fixing frame.
Furthermore, travel switch passes the fixed setting of the side board of fixed frame, and the rotatory overcoat contact setting of contact is touched to the trigger head on the travel switch, is provided with the resilience spring on the trigger head, and when the handle connecting rod was rotatory, the pulley trigger switch on the extrusion travel switch of trigger bump.
Furthermore, a travel switch fixing plate is arranged on the fixing frame, one end of the travel switch fixing plate is fixedly welded with the fixing frame, and the travel switch is fixed on the travel switch fixing plate through bolts and is screwed and fixed through nuts.
Furthermore, the travel switch is XCKN.C, and the handle connecting rod is provided with the existing mechanical lock structure of the box door.
The utility model adopts the above technical scheme, the utility model discloses following technological effect has:
the utility model discloses the structure is simpler, can reduce the manufacturing cost of VCS case, establishes ties travel switch normal open point in electrical control return circuit, has realized even if also can earlier the function of separating brake behind the off-set under the maloperation condition, has eliminated former electromagnetic lock and has easily burnt out the problem that leads to preventing the maloperation function failure because of long-time circular telegram, has effectively avoided causing the conflagration or hindering people's safety risk because of the load-carrying operation arc-drawing.
Drawings
Fig. 1 is a schematic view of the cross-sectional structure of the present invention.
Fig. 2 is an electrical schematic diagram of the present invention.
Reference numbers in the figures: 1-a box body; 2-a travel switch; 3-a travel switch fixing plate; 4-triggering the salient point; 5-contacting the rotating jacket; 6-handle connecting rod; 7-fixing frames; 8-an isolating switch; 9-air switch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, preferred embodiments are described in detail. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
A visual breakpoint disconnecting switch box misoperation prevention interlocking device is shown in figures 1-2 and comprises a box body 1, a disconnecting switch 8 is arranged in the box body 1, a handle connecting rod 6 is arranged on the box body 1, the handle connecting rod 6 is arranged on the box body 1 in a class rotating mode, and one end of the inside of the handle connecting rod 6 is connected with the disconnecting switch 8. Be provided with travel switch 2 in the box 1, travel switch 2's normally closed point is provided with the rotatory overcoat of contact 5 on the handle connecting rod 6 in external motor scram control circuit in series, and the outside of the rotatory overcoat of contact 5 is provided with the trigger bump 4 that the interval set up, and travel switch 2's trigger head sets up with the outside contact of the rotatory overcoat of contact 5.
The original electromagnetic lock and the mechanical interlocking mechanism are changed into a state that a travel switch is matched with an operating handle connecting rod, a normally open point of the travel switch is connected into an electrical control loop in series for electrical interlocking, the travel switch is adjusted to act when the isolating switch handle is opened and closed to rotate to about 40 degrees according to the characteristic that a main contact of the isolating switch acts when the handle is opened and closed to rotate to 90 degrees, and an interlocking superior power supply contactor is disconnected, so that the pre-opening function of first power failure and then opening is realized.
As shown in fig. 2, QS is a load isolating switch and is connected with a switch operating handle, QS1 is an auxiliary contact of the isolating switch, QS2 is a pre-breaking limit switch, SB1 is an emergency stop button, SB2 is a starting switch, and SA is a three-position change-over switch.
The embodiment of the utility model provides an in, be provided with fixed frame 7 in the box 1, fixed frame 7 sets up to concave type frame structure to transversely set up in the inboard of box 1, handle connecting rod 6 passes fixed frame 7, and rotatory setting, the rotatory overcoat 5 setting of contact is in the inside of fixed frame 7. The fixing frame 7 is mainly used for fixing the handle connecting rod 6 and fixing the travel switch 2.
The embodiment of the utility model provides an in, travel switch 2 passes the fixed setting of the curb plate of fixed frame 7, and the overhead trigger head of travel switch 2 sets up with the 5 contacts of the rotatory overcoat of contact, triggers overhead resilience spring that is provided with, and when handle connecting rod 6 was rotatory, trigger the pulley trigger switch on the 4 extrusion travel switch 2 of bump. The trigger salient point 4 extrudes the trigger rod on the travel switch 2, so that the rotary trigger switch is realized, and the rotary trigger switch is shortened before the box door is opened.
The embodiment of the utility model provides an in, be provided with travel switch fixed plate 3 on the fixed frame 7, travel switch fixed plate 3 one end sets up with fixed frame 7 welded fastening, and travel switch 2 passes through the bolt fastening on travel switch fixed plate 3 to it is fixed to set up the nut tightening. The travel switch 2 is a travel switch with the model number of XCKN.C, and the handle connecting rod 6 is provided with an existing mechanical lock structure of the box door. Through the better stability of confirming travel switch 2 of 3 fixed travel switches of travel switch fixed plates, avoid the condition of skew appearing when triggering, it is more accurate.
A travel switch is added at a connecting rod of a handle of the isolating switch, a normally-closed point of the travel switch is connected in series in a motor emergency stop control loop, the travel switch is adjusted to act when a handle of the isolating switch is opened and closed to rotate to about 40 degrees according to the characteristic that a main contact of the isolating switch acts when the handle is opened and closed to rotate to 90 degrees, an upper power supply is disconnected, and the pre-opening function of first power failure and then opening is achieved. The electromagnetic lock is simple and practical in design, can be implemented by only slightly changing the electromagnetic lock into the travel switch, is wide in application range, and has great popularization significance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. Visual breakpoint isolator case prevents maloperation interlock, including box (1), be provided with isolator (8) in box (1), be provided with handle connecting rod (6) on box (1), handle connecting rod (6) set up rotatory setting on class in box (1), and the inside one end and the isolator (8) of handle connecting rod (6) are connected its characterized in that: be provided with travel switch (2) in box (1), the normally closed point of travel switch (2) is provided with the rotatory overcoat of contact (5) on handle connecting rod (6) in external motor scram control circuit in series, and the outside of the rotatory overcoat of contact (5) is provided with trigger bump (4) that the interval set up, and the trigger head of travel switch (2) sets up with the outside contact of the rotatory overcoat of contact (5).
2. The visual breakpoint disconnector box anti-misoperation interlocking device according to claim 1, characterized in that: a fixing frame (7) is arranged in the box body (1), the fixing frame (7) is of a concave frame structure and is transversely arranged on the inner side of the box body (1), the handle connecting rod (6) penetrates through the fixing frame (7) and is rotatably arranged, and the contact rotating outer sleeve (5) is arranged inside the fixing frame (7).
3. The visual breakpoint disconnector box anti-misoperation interlocking device according to claim 2, characterized in that: travel switch (2) pass the fixed setting of side board of fixed frame (7), trigger head and the rotatory overcoat of contact (5) contact setting on travel switch (2), are provided with the resilience spring on the trigger head, and when handle connecting rod (6) were rotatory, trigger bump (4) extrusion travel switch (2) on the pulley trigger switch.
4. The visual breakpoint disconnector box anti-misoperation interlocking device according to claim 3, characterized in that: a travel switch fixing plate (3) is arranged on the fixing frame (7), one end of the travel switch fixing plate (3) is fixedly welded with the fixing frame (7), and the travel switch (2) is fixed on the travel switch fixing plate (3) through a bolt and is screwed and fixed through a nut.
5. The visual breakpoint disconnect switch box anti-misoperation interlock of claim 4, characterized in that: the travel switch (2) is a travel switch with the model number of XCKN.C, and the handle connecting rod (6) is provided with the existing mechanical lock structure of the box door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120581563.XU CN214848269U (en) | 2021-03-22 | 2021-03-22 | Visual breakpoint isolator box misoperation prevention interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120581563.XU CN214848269U (en) | 2021-03-22 | 2021-03-22 | Visual breakpoint isolator box misoperation prevention interlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214848269U true CN214848269U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120581563.XU Active CN214848269U (en) | 2021-03-22 | 2021-03-22 | Visual breakpoint isolator box misoperation prevention interlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214848269U (en) |
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2021
- 2021-03-22 CN CN202120581563.XU patent/CN214848269U/en active Active
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