CN115653408A - Switch lock of transformer grounding cabinet - Google Patents
Switch lock of transformer grounding cabinet Download PDFInfo
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- CN115653408A CN115653408A CN202211342235.XA CN202211342235A CN115653408A CN 115653408 A CN115653408 A CN 115653408A CN 202211342235 A CN202211342235 A CN 202211342235A CN 115653408 A CN115653408 A CN 115653408A
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- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a switch lock of a transformer grounding cabinet, which comprises a lock body and a lock cylinder, wherein a cavity is formed in the lock body, a rotating plate is rotatably connected to the inner wall of the cavity, a hanging groove is formed in the lower end of the rotating plate, a hanging rod matched with the hanging groove is arranged on the side wall of the lock cylinder, a pump air cavity and a compression cavity are further formed in the lock body, an electromagnet is fixedly connected to the inner wall of the compression cavity, a magnetic piston is slidably connected in the compression cavity, the compression cavity is communicated with the pump air cavity through a through hole, a rotating mechanism used for rotating the rotating plate is arranged in the pump air cavity, and the rotating mechanism comprises a piston slidably connected in the pump air cavity. The switch lock is reasonable in structure, and compared with the traditional switch lock, the switch lock does not need to use a key through the arrangement of the rotating plate, the hanging groove and the rotating mechanism, is convenient to operate, can be unlocked only after the grounding cabinet is powered off, reduces the risk of electric shock, and greatly improves the safety performance of the switch lock.
Description
Technical Field
The invention relates to the technical field of switch locks, in particular to a switch lock of a transformer grounding cabinet.
Background
The transformer grounding resistance cabinet has the following functions: the common neutral point grounding mode of the electric power system in China comprises the following steps: the neutral point is directly grounded, the neutral point is not grounded, the neutral point is grounded through an arc suppression coil (resonance grounding), and the neutral point is grounded through a resistor, the grounding operation mode of the power system relates to a plurality of important problems of safe operation, power supply reliability, user power utilization safety and the like of a power grid, the neutral point is grounded through the resistor, namely, a resistor is connected in series between the neutral point and the ground of the power grid, the resistance value of the connected resistor is properly selected, the energy of half-wave behind a single-phase grounding electric arc can be discharged, the possibility of electric arc reignition is reduced, the amplitude value of the overvoltage of the power grid is relieved, the sensitivity of a relay protection device can be improved to act on tripping, and the normal operation of the system is effectively protected.
For guaranteeing distribution system's safety and protection of stability and personal safety, the external portion of cabinet of earthing cabinet can set up the safety lock, a random opening for preventing non-maintenance person, among the prior art, all need use the key when traditional switch lock is opened and is closed, it is very inconvenient, it loses to appear the key very easily, the condition that leads to not opening the lock takes place, simultaneously because the circuit is complicated in the earthing cabinet, in order to avoid electrocuteeing, all need carry out the outage operation during maintenance, but current lock is direct to be opened through the key, the staff forgets the outage very easily, cause the electric shock danger.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides the switch lock of the transformer grounding cabinet, which is convenient to operate and can be unlocked only after the grounding cabinet is powered off, thereby reducing the risk of electric shock and greatly improving the safety performance of the device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a transformer ground connection cabinet switch lock, includes lock body and lock core, the cavity has been seted up to the inside of lock body, it is connected with the rotor plate to rotate on the inner wall of cavity, the slot has been seted up to the lower extreme of rotor plate, be provided with on the lateral wall of lock core with slot matched with peg, pump air cavity and compression chamber have still been seted up to the inside of lock body, fixedly connected with electro-magnet on the inner wall in compression chamber, sliding connection has magnetic piston in the compression chamber, communicate through the through-hole between compression chamber and the pump air cavity, the inside of pump air cavity is provided with and is used for carrying out pivoted slewing mechanism to the rotor plate, slewing mechanism includes the piston of sliding connection in the pump air cavity, fixedly connected with rack on the lateral wall of piston, the rack passes the inner wall in pump air cavity and rather than sliding connection, the rotation of rotor plate and cavity is connected with the fixed hub and has the gear, wheel and rack meshing, equal fixedly connected with fixed plate on the both ends inner wall of lock body, two all be provided with the positioning mechanism that is used for the lock core to advance line location on the fixed plate.
Preferably, a through groove is formed in the inner wall of the cavity, and the rotating plate penetrates through the through groove.
Preferably, the positioning mechanism comprises positioning grooves respectively formed in the two fixing plates, grooves are formed in the upper end and the lower end of the lock cylinder, and positioning blocks are connected in the two grooves in a sliding mode.
Preferably, the side wall of the lock body is fixedly connected with an electric connecting piece, and the electric connecting piece is electrically connected with the electromagnet.
Preferably, the lower end of the magnetic piston is elastically connected with the inner wall of the compression cavity through a first spring, and the first spring is a tension spring.
Preferably, the lower ends of the two positioning blocks are elastically connected with the inner wall of the groove on the same side through two second springs, and the second springs are all pressure springs.
Preferably, the upper end of lock body is provided with one-way feed liquor pipe, one-way feed liquor pipe and compression chamber intercommunication, be provided with one-way drain pipe on the inner wall in compression chamber, one-way drain pipe is located the top of gear, one-way feed liquor pipe is external to have lubricating oil storage box.
Compared with the prior art, the invention has the following beneficial effects:
1. through setting up the rotor plate, slot and slewing mechanism, when needs are unblanked, need earlier to cut off the power supply to the earthing cabinet, after earthing cabinet outage, connect the electric plate outage, make the electro-magnet outage, lose magnetism after the electro-magnet outage, the magnetism piston moves down under the effect of first spring, the in-process that the magnetism piston moved down extrudes the gas below the magnetism piston into the pump gas intracavity by the through-hole, the piston at this moment is moved to cavity department by gaseous extrusion, drive the rack to remove in the cavity, under the effect of rack, gear revolve, drive the rotor plate and rotate, make the slot break away from the peg, accomplish unblanking, this switch lock compares in traditional switch lock, need not to use the key, and be convenient for operate, and must unblank after earthing cabinet outage, reduce the risk of electrocuteeing, the security performance of device is greatly improved.
2. Through setting up positioning mechanism, the lock core is installed on the grounding cabinet door body during the use, and the lock body is installed on the cubical switchboard inner wall, inserts the lock body with the lock core when closing the lock, and under the effect of fixed plate, the locating piece is compressed, removes in the recess, after the locating piece gets into the constant head tank, under the effect of second spring, the locating piece resets and inserts in the constant head tank, realizes fixing a position the lock core, can effectually avoid the lock core to insert the lock body more, influence locking.
3. Through setting up magnetic piston and electro-magnet, when unblanking, the magnetic piston moves down under the effect of first spring, with lubricating oil by one-way feed liquor pipe suction compression intracavity, when closing the lock, the magnetic piston resets, and upward movement pumps lubricating oil to gear and rack by one-way drain pipe on, realizes oiling the maintenance to rack and pinion and lock body internal component, ensures its lubrication degree, can avoid the lock body internal component to rust, improves device's life greatly.
Drawings
Fig. 1 is an open state diagram of a switch lock of a transformer grounding cabinet according to the present invention;
fig. 2 is a closed state diagram of a switch lock of a transformer grounding cabinet according to the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
fig. 4 is an enlarged view of the structure at B in fig. 2.
In the figure: the lock comprises a lock body 1, a power connection piece 2, an electromagnet 3, a magnetic piston 4, a compression cavity 5, a first spring 6, a one-way liquid inlet pipe 7, a one-way liquid outlet pipe 8, a through groove 9, a cavity 10, a through hole 11, a piston 12, a pump air cavity 13, a rack 14, a rotating plate 15, a gear 16, a hanging groove 17, a fixing plate 18, a positioning groove 19, a hanging rod 20, a lock core 21, a positioning block 22, a groove 23 and a second spring 24.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Referring to fig. 1-4, a switch lock of a transformer grounding cabinet comprises a lock body 1 and a lock core 21, a cavity 10 is arranged inside the lock body 1, a rotating plate 15 is rotatably connected to the inner wall of the cavity 10, a through groove 9 is arranged on the inner wall of the cavity 10 and the inner wall of the cavity, the rotating plate 15 passes through the through groove 9, a hanging groove 17 is arranged at the lower end of the rotating plate 15, a hanging rod 20 matched with the hanging groove 17 is arranged on the side wall of the lock core 21, a pump air cavity 13 and a compression cavity 5 are also arranged inside the lock body 1, an electromagnet 3 is fixedly connected to the inner wall of the compression cavity 5, a magnetic piston 4 is slidably connected in the compression cavity 5, the compression cavity 5 is communicated with the pump air cavity 13 through a through hole 11, an electric connecting piece 2 is fixedly connected to the side wall of the lock body 1, the electric connecting piece 2 is electrically connected with the electromagnet 3, and the lower end of the magnetic piston 4 is elastically connected with the inner wall of the compression cavity 5 through a first spring 6, first spring 6 is tension spring, the upper end of lock body 1 is provided with one-way feed liquor pipe 7, one-way feed liquor pipe 7 and compression chamber 5 intercommunication, be provided with one-way drain pipe 8 on the inner wall of compression chamber 5, one-way drain pipe 8 is located the top of gear 16, one-way feed liquor pipe 7 is external to have the lubricating oil storage box, when unblanking, magnetic piston 4 moves down under first spring 6's effect, draw lubricating oil into compression chamber 5 by one-way feed liquor pipe 7, when closing the lock, magnetic piston 4 resets, upward movement pumps lubricating oil to gear 16 and rack 14 by one-way drain pipe 8 on, realize gear 16, rack 14 and the maintenance of oiling of 1 internal component of lock body, ensure its degree of lubrication, can avoid 1 internal component of lock body to rust, improve the life of device greatly.
The inside of pump air chamber 13 is provided with and is used for carrying out pivoted slewing mechanism to rotor plate 15, and slewing mechanism includes sliding connection piston 12 in pump air chamber 13, fixedly connected with rack 14 on the lateral wall of piston 12, and rack 14 passes the inner wall of pump air chamber 13 and rather than sliding connection, and rotor plate 15 is connected with fixed cover with cavity 10 and is connected with gear 16, and gear 16 and rack 14 mesh, equal fixedly connected with fixed plate 18 on the both ends inner wall of lock body 1.
All be provided with on two fixed plates 18 and be used for lock core 21 to carry out the positioning mechanism who fixes a position, positioning mechanism is including seting up constant head tank 19 on two fixed plates 18 respectively, recess 23 has all been seted up to the upper end and the lower extreme of lock core 21, equal sliding connection has locating piece 22 in two recesses 23, all through two second spring 24 elastic connection between the lower extreme of two locating pieces 22 and the inner wall of homonymy recess 23, a plurality of second spring 24 are pressure spring, insert lock body 1 with lock core 21 when closing the lock, under fixed plate 18's effect, locating piece 22 is compressed, remove in recess 23, after locating piece 22 gets into constant head tank 19, under second spring 24's effect, locating piece 22 resets and inserts in the constant head tank 19, the realization is fixed a position lock core 21.
When the lock is used, the lock cylinder 21 is arranged on the door body of the grounding cabinet, the lock body 1 is arranged on the inner wall of the switch cabinet, the lock cylinder 21 is inserted into the lock body 1 when the lock is closed, the positioning block 22 is compressed and moves into the groove 23 under the action of the fixing plate 18, and after the positioning block 22 enters the positioning groove 19, the positioning block 22 is reset and inserted into the positioning groove 19 under the action of the second spring 24, so that the lock cylinder 21 is positioned, and the lock cylinder 21 can be effectively prevented from being inserted into the lock body 2 more and influencing locking;
when the switch lock needs to be unlocked, the grounding cabinet needs to be powered off firstly, after the grounding cabinet is powered off, the power connection piece 2 is powered off, so that the electromagnet 3 is powered off, the electromagnet 3 loses magnetism after being powered off, the magnetic piston 4 moves downwards under the action of the first spring 6, in the process that the magnetic piston 4 moves downwards, gas below the magnetic piston 4 is squeezed into the pumping air cavity 13 through the through hole 11, the piston 12 at the moment is squeezed by the gas to move towards the cavity 10, the rack 14 is driven to move towards the cavity 10, the gear 16 rotates under the action of the rack 14, the rotating plate 15 is driven to rotate, the hanging groove 17 is separated from the hanging rod 20, and the unlocking is completed;
when unblanking, magnetic piston 4 moves down under the effect of first spring 6, with lubricating oil by one-way feed liquor pipe 7 suction compression chamber 5 in, when closing the lock, magnetic piston 4 resets, upward movement and with lubricating oil by one-way drain pipe 8 pump to gear 16 and rack 14 on, the maintenance of oiling is carried out to gear 16, rack 14 and 1 inside subassembly of lock body to the realization, ensures its degree of lubrication, can avoid 1 inside subassembly of lock body to rust, improve device's life greatly.
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 person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A switch lock of a transformer grounding cabinet comprises a lock body (1) and a lock cylinder (21), and is characterized in that a cavity (10) is formed in the lock body (1), a rotating plate (15) is rotatably connected to the inner wall of the cavity (10), a hanging groove (17) is formed in the lower end of the rotating plate (15), a hanging rod (20) matched with the hanging groove (17) is arranged on the side wall of the lock cylinder (21), a pump air cavity (13) and a compression cavity (5) are further formed in the lock body (1), an electromagnet (3) is fixedly connected to the inner wall of the compression cavity (5), a magnetic piston (4) is slidably connected to the compression cavity (5), the compression cavity (5) is communicated with the pump air cavity (13) through a through hole (11), a rotating mechanism used for rotating the rotating plate (15) is arranged in the pump air cavity (13), the rotating mechanism comprises a piston (12) slidably connected to the pump air cavity (13), a rack (14) is fixed to the side wall of the piston (12), the rack (14) penetrates through the inner wall of the pump air cavity (13) and is slidably connected with the rotating plate (16), and a gear rack (16) is connected with the rotating plate (15), the lock body is characterized in that the inner walls of two ends of the lock body (1) are fixedly connected with fixing plates (18), and the two fixing plates (18) are respectively provided with a positioning mechanism for positioning the lock cylinder (21).
2. The switch lock of the transformer grounding cabinet according to claim 1, wherein a through groove (9) is formed on the inner wall of the cavity (10), and the rotating plate (15) penetrates through the through groove (9).
3. The switch lock of the transformer grounding cabinet as claimed in claim 2, wherein the positioning mechanism comprises positioning grooves (19) respectively formed on two fixing plates (18), the upper end and the lower end of the lock cylinder (21) are both provided with grooves (23), and the two grooves (23) are both connected with positioning blocks (22) in a sliding manner.
4. The switch lock of the transformer grounding cabinet according to claim 3, characterized in that an electric connecting piece (2) is fixedly connected to the side wall of the lock body (1), and the electric connecting piece (2) is electrically connected with the electromagnet (3).
5. The switch lock of the transformer grounding cabinet according to claim 4, characterized in that the lower end of the magnetic piston (4) is elastically connected with the inner wall of the compression chamber (5) through a first spring (6), and the first spring (6) is a tension spring.
6. The switch lock of the transformer grounding cabinet according to claim 5, wherein the lower ends of the two positioning blocks (22) are elastically connected with the inner wall of the groove (23) at the same side through two second springs (24), and the second springs (24) are all pressure springs.
7. The switch lock of the transformer grounding cabinet of claim 6, characterized in that a one-way liquid inlet pipe (7) is arranged at the upper end of the lock body (1), the one-way liquid inlet pipe (7) is communicated with the compression cavity (5), a one-way liquid outlet pipe (8) is arranged on the inner wall of the compression cavity (5), the one-way liquid outlet pipe (8) is positioned above the gear (16), and a lubricating oil storage box is externally connected to the one-way liquid inlet pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211342235.XA CN115653408B (en) | 2022-10-30 | 2022-10-30 | Switch lock of transformer grounding cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211342235.XA CN115653408B (en) | 2022-10-30 | 2022-10-30 | Switch lock of transformer grounding cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115653408A true CN115653408A (en) | 2023-01-31 |
| CN115653408B CN115653408B (en) | 2023-06-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211342235.XA Active CN115653408B (en) | 2022-10-30 | 2022-10-30 | Switch lock of transformer grounding cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115653408B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007056660A (en) * | 2005-07-29 | 2007-03-08 | Miwa Lock Co Ltd | Locking/unlocking mechanism and key |
| KR20100100091A (en) * | 2009-03-05 | 2010-09-15 | 신종주 | The locking device for locker |
| CN102635278A (en) * | 2012-05-09 | 2012-08-15 | 邢台供电公司 | Anti-theft lock of transformer |
| CN109610953A (en) * | 2018-12-18 | 2019-04-12 | 天长市福骏金属制品有限公司 | A kind of machining center cooperation apparatus of permanent-magnetic door lock of power distribution cabinet |
| CN111833501A (en) * | 2020-08-17 | 2020-10-27 | 国家电网有限公司 | Power distribution equipment intelligent lock based on positioning topological graph and application thereof |
| CN213742779U (en) * | 2020-10-15 | 2021-07-20 | 江苏凡尚信息科技有限公司 | Door lock with remote unlocking function |
| CN213898497U (en) * | 2020-11-02 | 2021-08-06 | 瑞安市中力门窗五金有限公司 | Two point locks of interior division of intelligence |
| CN113389463A (en) * | 2021-07-02 | 2021-09-14 | 南京工业职业技术大学 | Big data storage device of high security |
-
2022
- 2022-10-30 CN CN202211342235.XA patent/CN115653408B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007056660A (en) * | 2005-07-29 | 2007-03-08 | Miwa Lock Co Ltd | Locking/unlocking mechanism and key |
| KR20100100091A (en) * | 2009-03-05 | 2010-09-15 | 신종주 | The locking device for locker |
| CN102635278A (en) * | 2012-05-09 | 2012-08-15 | 邢台供电公司 | Anti-theft lock of transformer |
| CN109610953A (en) * | 2018-12-18 | 2019-04-12 | 天长市福骏金属制品有限公司 | A kind of machining center cooperation apparatus of permanent-magnetic door lock of power distribution cabinet |
| CN111833501A (en) * | 2020-08-17 | 2020-10-27 | 国家电网有限公司 | Power distribution equipment intelligent lock based on positioning topological graph and application thereof |
| CN213742779U (en) * | 2020-10-15 | 2021-07-20 | 江苏凡尚信息科技有限公司 | Door lock with remote unlocking function |
| CN213898497U (en) * | 2020-11-02 | 2021-08-06 | 瑞安市中力门窗五金有限公司 | Two point locks of interior division of intelligence |
| CN113389463A (en) * | 2021-07-02 | 2021-09-14 | 南京工业职业技术大学 | Big data storage device of high security |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115653408B (en) | 2023-06-23 |
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