CN111884118A - Armored movable metal-enclosed switchgear cable chamber door interlocking mechanism - Google Patents
Armored movable metal-enclosed switchgear cable chamber door interlocking mechanism Download PDFInfo
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- CN111884118A CN111884118A CN202010633293.2A CN202010633293A CN111884118A CN 111884118 A CN111884118 A CN 111884118A CN 202010633293 A CN202010633293 A CN 202010633293A CN 111884118 A CN111884118 A CN 111884118A
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- Prior art keywords
- chamber door
- cable chamber
- interlocking
- interlocking mechanism
- shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/28—Earthing arrangements
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses an armored movable metal-enclosed switchgear cable chamber door interlocking mechanism, which relates to the technical field of switchgear and comprises a cabinet body, a grounding switch operating shaft, a cable chamber door, an interlocking mechanism and a pushing mechanism, wherein the grounding switch operating shaft and the interlocking mechanism are both arranged in the inner cavity of the cabinet body; the interlocking mechanism can limit the rotation of the grounding switch operating shaft when the cable chamber door is in an open state, so that the grounding knife switch keeps a closing state; the pushing mechanism can release the limitation of the interlocking mechanism on the operation shaft of the grounding switch, so that the switch-on and switch-off states of the grounding knife switch can be switched. The invention can realize that the cable chamber door of the high-voltage switch equipment can not carry out power transmission and service functions under the state of not closing, prevents the phenomena of mistaken entering of operators into an electrified interval and the like, is favorable for improving the reliability and safety factor of the whole product, and has strong practicability.
Description
Technical Field
The invention relates to the technical field of switch equipment, in particular to a cable chamber door interlocking mechanism of an armored movable metal closed switch equipment.
Background
Among the present power system, the cable chamber door of armor formula of removing metal-enclosed switchgear all is equipped with simple and easy chain function of opening the door, prevents promptly that operating personnel from can not being opened at the cable chamber door of equipment line load side live-line time high tension switchgear, prevents that operating personnel from missing the electrified interval. However, after the cable chamber door is opened, no corresponding interlocking mechanism is arranged to restrict the power transmission process of the high-voltage equipment. The cable chamber door high tension switchgear still can carry out the power transmission and put into use the function under the not closed condition, does not get rid of there is the live working condition, can lead to operation maintenance personal to miss the live interval this moment, has a great deal of potential safety hazard, and the light person damages electrical equipment, and the heavy person takes place the electric shock accident and even makes operation maintenance personal casualty. Therefore, how to improve the safe use coefficient of the cable chamber door of the high-voltage switchgear in an unclosed state is a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide an armored movable metal closed switch equipment cable chamber door interlocking mechanism which is simple and reasonable in structure and convenient to install and disassemble, so that a high-voltage switch equipment cable chamber door cannot be powered on and put into use in an unclosed state, the phenomena that operators mistakenly enter a live interval and the like are prevented, the reliability and the safety coefficient of the whole product are improved, and the problems in the prior art can be effectively solved.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an armored movable metal closed switch equipment cable chamber door interlocking mechanism which comprises a cabinet body, a grounding switch operating shaft, a cable chamber door, an interlocking mechanism and a pushing mechanism, wherein the grounding switch operating shaft and the interlocking mechanism are both arranged in an inner cavity of the cabinet body; the interlocking mechanism can limit the rotation of the grounding switch operating shaft when the cable chamber door is in an open state, so that the grounding knife switch keeps a closing state; the pushing mechanism can release the limitation of the interlocking mechanism on the grounding switch operating shaft, so that the grounding knife switch can be switched between an opening state and a closing state.
Optionally, the interlocking mechanism includes a U-shaped bent plate, an L-shaped support, an unlocking shaft, and a return spring; one side of the L-shaped support is fixed at the opening end of the U-shaped bent plate, and the other side of the L-shaped support is fixed at the cabinet body; the unlocking shaft is arranged in the inner cavity of the U-shaped bent plate and can penetrate through the L-shaped support; the tail end of the unlocking shaft is connected with a guide shaft, the tail end of the guide shaft is provided with a check ring, and the check ring is positioned on the outer side of the U-shaped bent plate; the guide shaft is sleeved with the reset spring, and two ends of the reset spring are respectively abutted to the U-shaped bent plate and the tail end of the unlocking shaft.
Optionally, the pushing mechanism comprises a pushing post, an interlocking block and an interlocking cover; the interlocking block is connected to the head end of the push column, a groove is formed in the tail end of the push column, and after the push column is pushed in place, the groove can enable the grounding switch operating shaft to penetrate through the groove, so that the limitation of the interlocking mechanism on the grounding switch operating shaft is removed; the interlocking cover is clamped with the interlocking block through a shaft; the interlocking block is fixed to the cable chamber door.
Optionally, a limit sleeve is arranged on the grounding switch operating shaft.
Optionally, a sector plate is arranged at the head end of the grounding switch operating shaft, and the sector plate can be clamped in the groove.
Optionally, the interlocking block is connected to the push post through an unlocking bolt, and when the cable chamber door needs to be opened urgently, the interlocking block is disengaged from the push post by unscrewing the unlocking bolt.
Optionally, the groove is disposed on a side wall of the end of the push column.
Optionally, the interlocking block is embedded and mounted on the outer surface of the cable chamber door.
Compared with the prior art, the invention has the following technical effects:
the armored movable metal closed switch equipment cable chamber door interlocking mechanism provided by the invention can realize the function that the cable chamber door of the high-voltage switch equipment cannot be used for power transmission in the unclosed state, prevent the phenomena of mistaken entering of an electrified interval and the like by an operator, and is beneficial to improving the reliability and safety factor of the whole product. Meanwhile, the interlocking mechanism is fastened to the cabinet body and the cable chamber door through bolts, is independent of a switch device, is convenient to install and detach, is stable in interlocking, high in interchangeability, easy to maintain and high in practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is an assembly view of the door-open state of the interlocking mechanism of the cable chamber of the armored movable metal-enclosed switchgear;
FIG. 2 is a schematic structural diagram of the armored movable metal-enclosed switchgear cable chamber door interlocking mechanism according to the present invention in a closed state;
FIG. 3 is a schematic view of the interlocking mechanism of the present invention;
FIG. 4 is a schematic structural view showing a closing state of an interlocking cover in the propulsion mechanism of the present invention;
FIG. 5 is a schematic view of the structure of the interlocking cover in the pushing mechanism according to the present invention;
FIG. 6 is a schematic structural view of an operating shaft of the earthing switch according to the present invention;
wherein the reference numerals are: 1-an earthing switch operating shaft; 2, fixing a bolt I; 3-a retainer ring; 4-a return spring; 5-unlocking the shaft; 6, fixing a bolt II; 7-a limit pin; 8-a limiting sleeve; 9-U-shaped bent plate; a 10-L shaped support; 11-cable chamber door; 12-a cabinet body; 13 shafts; 14-a first via hole; 15-an interlocking cover; 16-an interlocking block; 17-a push column; 18-sector plates; 19-fixing a bolt III; 20-grooves; 21-a second via hole; 22-Via three; 23-via hole four; 24-a fixation hole; 25-unlocking the bolt; 26-guide shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
as shown in fig. 1-2, the present embodiment provides an interlocking mechanism for a cable chamber door of an armored movable metal-enclosed switchgear, which includes a cabinet body 12, a ground switch operating shaft 1, a cable chamber door 11, an interlocking mechanism and a pushing mechanism, wherein the ground switch operating shaft 1 and the interlocking mechanism are disposed in an inner cavity of the cabinet body 12, the cable chamber door 11 is disposed at a head end of the cabinet body 12, one side of the cable chamber door 11 is hinged to the cabinet body 12, and the other side of the cable chamber door 11 is provided with the pushing mechanism. The interlocking mechanism can limit the rotation of the grounding switch operating shaft 1 when the cable chamber door 11 is in an open state, so that the grounding knife switch keeps a closing state; the propulsion mechanism can release the limitation of the interlocking mechanism on the circumferential rotation of the earthing switch operating shaft 1, so that the earthing knife switch can be switched between an opening state and a closing state.
In this embodiment, as shown in fig. 3, the interlocking mechanism includes a laterally placed U-shaped bent plate 9, an L-shaped support 10, an unlocking shaft 5 and a return spring 4, the head end of the U-shaped bent plate 9 is provided with the L-shaped support 10, and one side surface of the L-shaped support 10 is fixedly connected with an opening of the U-shaped bent plate 9 through a second fixing bolt 6; the other side surface of the L-shaped support 10 is provided with a second through hole 21 which can be fixed on the cabinet body 12 by matching with a third fixing bolt 19. The unlocking shaft 5 is arranged in an inner cavity of the U-shaped bent plate 9, the tail end of the unlocking shaft 5 is connected with a guide shaft 26, the tail end of the guide shaft 26 is provided with a check ring 3, and the check ring 3 is fixedly connected with the guide shaft 26 through a first fixing bolt 2. The guide shaft 26 is sleeved with a return spring 4; and a third via hole 22 and a fourth via hole 23 are respectively arranged on the bottom surface of the U-shaped bent plate 9 and one side surface of the L-shaped support 10, and the third via hole 22 and the fourth via hole 23 are coaxially arranged and used for the grounding switch operating shaft 1 to penetrate through.
In this embodiment, as shown in fig. 4-5, the pushing mechanism includes a pushing post 17, an interlocking block 16 and an interlocking cover 15, the interlocking block 16 is connected with the head end of the pushing post 17 through an unlocking bolt 25, and a groove 20 is formed on the side wall at the tail end of the pushing post 17; the interlocking cover 15 is clamped with the interlocking block 16 through the shaft 13; the interlocking block 16 is also provided with a fixing hole 24, and the pushing mechanism is fixedly connected with a bolt of the cable chamber door through the fixing hole 24.
In the present embodiment, as shown in fig. 6, a sector plate 18 is provided at the head end of the earthing switch operating shaft 1. After the grounding switch operating shaft 1 is installed, the sector plate 18 is positioned in the cavity of the L-shaped support 10, and the head end of the grounding switch operating shaft 1 is prevented from slipping from the fourth via hole 23; meanwhile, the rear part of the grounding switch operating shaft 1 is sleeved with a limiting sleeve 8, the limiting sleeve 8 is fixedly connected with the grounding switch operating shaft 1 through a limiting pin 7, and the limiting sleeve 8 is fixed at the tail end of a U-shaped bent plate 9; the sector plate 18 is rotatable synchronously with the earthing switch operating shaft 1.
In this embodiment, when the pushing mechanism enters the inner cavity of the cabinet body through the first via hole 14, the unlocking shaft 5 moves backwards, the restoring spring position 4 is compressed under force, the unlocking shaft 5 penetrates through the fourth via hole 23 and contracts towards the inside of the U-shaped bent plate 9, and the head end face is flush with the front end of the L-shaped support 10, at this time, the sector plate 18 is not restrained by the unlocking shaft 5 any more, the earthing switch operating shaft 1 can act clockwise, the earthing knife switch is opened, the sector plate 18 is located in the groove 20 of the push pillar 17, and the cable chamber door 11 cannot be opened. In this state, the armored movable metal-enclosed switchgear can be switched on and powered on, thereby preventing the operation maintenance personnel from entering the live interval by mistake.
When the cable chamber door 11 is to be opened, the switching-off of the armored movable metal-enclosed switchgear is interrupted, the grounding switch operating shaft 1 acts anticlockwise, the grounding knife switch is switched on, the sector plates 18 and the grooves 20 are staggered until the sector plates are separated from the grooves 20, at the moment, the pressure of the return spring 4 is released, the unlocking shaft 5 can be driven to move forwards, the pushing mechanism and the cable chamber door 11 can move forwards synchronously, and the cable chamber door 11 can be opened.
When cable chamber door 11 is in the open mode, sector plate 18 receives the restraint of unblock axle 5, and earthing switch operating axis 1 can not rotate, and earthing knife switch is in the combined floodgate state, can realize that armor withdrawable metal enclosed switchgear cable chamber door 11 can not carry out the power transmission under the state of not closing and put on the usefulness function, prevents that operating personnel from missing phenomenons such as electrified interval, has improved reliability, the factor of safety of whole product.
At the inside proruption trouble of normal electrified operation of armor formula of moving metal enclosed switchgear, when needing to open cable chamber door 11 promptly and operate, only need upwards lift interlocking lid 15 with the hand, rotate and loosen unblock bolt 25 and make interlocking piece 16 break away from push pillar 17, just at this moment can conveniently open cable chamber door 11, operate or maintain the operation to switchgear to possess urgent unblock function, avoid the appearance that the inside trouble of armor formula of moving metal enclosed switchgear enlarges and causes cubical switchboard loss scheduling problem.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. The utility model provides an armor withdraws formula metal-enclosed switchgear cable chamber door interlocking gear which characterized in that: the grounding switch cabinet comprises a cabinet body, a grounding switch operating shaft, a cable chamber door, an interlocking mechanism and a propelling mechanism, wherein the grounding switch operating shaft and the interlocking mechanism are both arranged in an inner cavity of the cabinet body; the interlocking mechanism can limit the rotation of the grounding switch operating shaft when the cable chamber door is in an open state, so that the grounding knife switch keeps a closing state; the pushing mechanism can release the limitation of the interlocking mechanism on the grounding switch operating shaft, so that the grounding knife switch can be switched between an opening state and a closing state.
2. The armored removable metal enclosed switchgear cable chamber door interlocking mechanism of claim 1, wherein: the interlocking mechanism comprises a U-shaped bent plate, an L-shaped support, an unlocking shaft and a return spring; one side of the L-shaped support is fixed at the opening end of the U-shaped bent plate, and the other side of the L-shaped support is fixed at the cabinet body; the unlocking shaft is arranged in the inner cavity of the U-shaped bent plate and can penetrate through the L-shaped support; the tail end of the unlocking shaft is connected with a guide shaft, the tail end of the guide shaft is provided with a check ring, and the check ring is positioned on the outer side of the U-shaped bent plate; the guide shaft is sleeved with the reset spring, and two ends of the reset spring are respectively abutted to the U-shaped bent plate and the tail end of the unlocking shaft.
3. The armored removable metal enclosed switchgear cable chamber door interlocking mechanism of claim 1, wherein: the pushing mechanism comprises a pushing column, an interlocking block and an interlocking cover; the interlocking block is connected to the head end of the push column, a groove is formed in the tail end of the push column, and after the push column is pushed in place, the groove can enable the grounding switch operating shaft to penetrate through the groove, so that the limitation of the interlocking mechanism on the grounding switch operating shaft is removed; the interlocking cover is clamped with the interlocking block through a shaft; the interlocking block is fixed to the cable chamber door.
4. The armored removable metal enclosed switchgear cable chamber door interlocking mechanism of claim 1 or 3, wherein: and the grounding switch operating shaft is provided with a limiting sleeve.
5. The armored removable metal enclosed switchgear cable chamber door interlock according to claim 3, wherein: the head end of the grounding switch operating shaft is provided with a sector plate, and the sector plate can be clamped in the groove.
6. The armored removable metal enclosed switchgear cable chamber door interlock according to claim 3, wherein: the interlocking block is connected with the push column through an unlocking bolt, and when the cable chamber door needs to be opened emergently, the interlocking block is separated from the push column by unscrewing the unlocking bolt.
7. The armored removable metal enclosed switchgear cable chamber door interlock according to claim 3, wherein: the groove is arranged on the side wall of the tail end of the push column.
8. The armored removable metal enclosed switchgear cable chamber door interlock according to claim 3, wherein: the interlocking block is embedded and installed on the outer surface of the cable chamber door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633293.2A CN111884118A (en) | 2020-07-02 | 2020-07-02 | Armored movable metal-enclosed switchgear cable chamber door interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633293.2A CN111884118A (en) | 2020-07-02 | 2020-07-02 | Armored movable metal-enclosed switchgear cable chamber door interlocking mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN111884118A true CN111884118A (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010633293.2A Pending CN111884118A (en) | 2020-07-02 | 2020-07-02 | Armored movable metal-enclosed switchgear cable chamber door interlocking mechanism |
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| CN (1) | CN111884118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117317872A (en) * | 2023-11-30 | 2023-12-29 | 吴江金通力电器成套有限公司 | Medium-voltage switchgear |
-
2020
- 2020-07-02 CN CN202010633293.2A patent/CN111884118A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117317872A (en) * | 2023-11-30 | 2023-12-29 | 吴江金通力电器成套有限公司 | Medium-voltage switchgear |
| CN117317872B (en) * | 2023-11-30 | 2024-02-02 | 吴江金通力电器成套有限公司 | Medium-voltage switchgear |
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