CN211350416U - Medium voltage protection device with manual override and ground lockout - Google Patents
Medium voltage protection device with manual override and ground lockout Download PDFInfo
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- CN211350416U CN211350416U CN201922322277.7U CN201922322277U CN211350416U CN 211350416 U CN211350416 U CN 211350416U CN 201922322277 U CN201922322277 U CN 201922322277U CN 211350416 U CN211350416 U CN 211350416U
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Abstract
The utility model relates to a five prevent interlocking technical field in the safety distribution, especially a medium voltage protection device with manual priority and ground connection shutting, contain manual priority structure and ground connection shutting structure, this application is to five prevent interlocking in the safety distribution, combine manual priority structure and ground connection shutting structure, manual priority structure can realize cutting off the electrical operation return circuit when the deciliter of manual operation mechanism, prevent the hidden danger that electrical maloperation and repetitive operation brought effectively, the mistake of preventing that has satisfied five prevent requirements divides, closes the circuit breaker and prevents to divide, close the isolator requirement with the load; the grounding locking structure can realize that the grounding device is forbidden to operate when the primary circuit of the switch is in a charged state, and meets the requirements of preventing the grounding switch from being charged and preventing the circuit breaker from being grounded in the five-prevention requirements. The novel structure effectively combines mechanical transmission interlocking and electrical locking, has the characteristics of simple structure, small volume and no maintenance, and is worthy of popularization.
Description
Technical Field
The utility model belongs to the technical field of the five-prevention interlocking technique among the safety power distribution and specifically relates to a middling pressure protection device with manual priority and ground connection shutting.
Background
Five-prevention interlocking plays a crucial role in looped network safety power distribution. The five prevention mainly comprises: 1. and the circuit breaker is prevented from being opened and closed by mistake. 2. Prevent the isolating switch from being switched on and off under load. 3. Preventing the live switch from engaging the ground switch. 4. Preventing the belt from engaging the circuit breaker. 5. Prevent the wrong entering into the electrified interval. Although most switch products in the market can also achieve the five-prevention function, most switch products are electrically interlocked, certain defects exist, faults are easy to occur, and great harm is caused when the electrical and protection elements are in faults.
SUMMERY OF THE UTILITY MODEL
Aiming at overcoming the above-mentioned not enough, the utility model provides a middling pressure protection device with manual priority and ground connection shutting, this structural installation is in five prevent interlocking structure, and this design can realize combining machinery and electrical interlocking, and the mutual noninterference of pin-down each other does zero error to make the integration with interlocking structure part, make product simplification, compactization, non-maintaining.
The utility model provides a technical scheme that its technical problem adopted is: a medium-voltage protection device with manual priority and ground locking comprises a manual priority structure and a ground locking structure, wherein the manual priority structure comprises a mounting plate, the upper part of the left side of the mounting plate is hinged with a closing baffle, the lower part of the left side of the mounting plate is hinged with a ground baffle, the closing baffle and the ground baffle are respectively connected with a shifting structure through a first linkage rotating shaft and a second linkage rotating shaft, the shifting structure is connected to the right side of the mounting plate in a sliding manner, the ground locking structure is fixed on the right side of the mounting plate and comprises a lower sliding plate, a middle sliding plate and a fixing plate, the fixing plate is mounted on the mounting plate, the middle sliding plate is fixedly connected with the shifting structure, the lower sliding plate is connected with the middle sliding plate in a sliding manner, the middle sliding plate is connected with the fixing plate in a, be connected with reset structure between lower slide and the fixed plate, the mounting panel top is provided with micro-gap switch, it makes micro-gap switch trigger's ejector pin to be provided with on the structure to stir, the shutting coil is installed on fixed plate upper portion, set up the spring telescopic link on the shutting coil, the spring telescopic link links to each other with the couple inlay card on middle slide upper portion.
According to the utility model discloses a further embodiment, further include, closing a floodgate baffle and grounded barrier are the racket form, contain baffle portion and driving lever portion, driving lever portion links to each other with toggle structure through the linkage pivot. The hinge point of the closing baffle and the grounding baffle is positioned at the transition position of the baffle part and the poking rod part.
According to the utility model discloses a further embodiment, further include, toggle structure is platelike, links to each other with the mounting panel spout, the mounting panel is provided with the arcuation groove in driving lever portion department of correspondence, toggle structure is provided with the L shape groove in relevant position, arcuation groove and L shape groove are passed in the linkage pivot.
According to the utility model discloses a further embodiment, further include, middle slide passes through draw-in groove structure and toggle structure fixed connection.
According to the utility model discloses a further embodiment, further include, the lower slide is provided with vertical waist-shaped groove one and heart-shaped annular, middle slide is provided with vertical waist-shaped groove two, vertical waist-shaped groove two middle parts are provided with horizontal opening, the fixed plate sets up horizontal waist-shaped groove, be provided with the guide shaft sleeve between vertical waist-shaped groove one and the vertical waist-shaped groove two, the locking structure is the backing pin, and the backing pin passes heart-shaped annular, horizontal opening and horizontal waist-shaped groove in proper order.
According to another embodiment of the present invention, further comprising, the heart-shaped ring groove of the lower slide plate, the transverse opening of the middle slide plate and the transverse waist-shaped groove of the fixing plate are connected by a locking structure.
According to the utility model discloses a further embodiment, further include, vertical waist type groove one has two sets ofly, heart-shaped annular is located between two sets of vertical waist type groove one, sets up two sets of vertical waist type groove one, guarantees sliding connection's reliable and stable.
According to the utility model discloses a further embodiment, further include, reset structure is return spring, return spring links to each other with lower slide, fixed plate couple respectively.
The utility model has the advantages that the manual priority structure is combined with the grounding locking structure aiming at the five-prevention interlocking in the safety power distribution, the manual priority structure can cut off an electric operation loop when a manual operation mechanism is switched on and off, thereby effectively preventing hidden dangers caused by electric misoperation and repeated operation, and meeting the requirements of five-prevention requirements on preventing mistaken switching-on and switching-off of a circuit breaker and preventing on-load switching-off and switching-on of an isolating switch; the grounding locking structure can realize that the grounding device is forbidden to operate when the primary circuit of the switch is in a charged state, and meets the requirements of preventing the grounding switch from being charged and preventing the circuit breaker from being grounded in the five-prevention requirements. The novel structure effectively combines mechanical transmission interlocking and electrical locking, has the characteristics of simple structure, small volume and no maintenance, and is worthy of popularization.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a ground latch;
FIG. 3 is a schematic view of the connection of the grounding lock structure and the toggle structure;
FIG. 4 is a schematic structural diagram of a closing shield or a grounding shield;
FIG. 5 is a view of the construction of the lower slide plate;
FIG. 6 is a view of the intermediate slide plate;
FIG. 7 is a schematic view of the intermediate slide plate being locked;
fig. 8 is a schematic view of the structure of the intermediate slide plate unlocking.
In the figure, 1, a manual priority structure, 1-1, a mounting plate, 1-2, an arc-shaped groove, 2, a grounding locking structure, 3, a closing baffle, 4, a grounding baffle, 5, a first linkage rotating shaft, 6, a second linkage rotating shaft, 7, a toggle structure, 7-1, a mandril, 7-2, an L-shaped groove, 8, a lower sliding plate, 8-1, a cabinet door hook, 8-2, a first longitudinal waist-shaped groove, 8-3, a heart-shaped annular groove, 9, the device comprises a middle sliding plate, 9-1, a hook, 9-2, a longitudinal waist-shaped groove II, 9-3, a transverse opening, 10, a fixing plate, 10-1, a transverse waist-shaped groove, 11, a locking structure, 12, a reset structure, 13, a micro switch, 14, a locking coil, 14-1, a spring telescopic rod, 15, a baffle part, 16, a driving lever part, 17, a clamping groove structure, 18 and a guide shaft sleeve.
Detailed Description
Fig. 1 to 3 are schematic structural diagrams of the present invention, a medium voltage protection device with manual priority and ground locking, comprising a manual priority structure 1 and a ground locking structure 2, wherein the manual priority structure 1 comprises a mounting plate 1-1, a closing baffle 3 is hinged on the upper portion of the left side of the mounting plate 1-1, a ground baffle 4 is hinged on the lower portion of the left side of the mounting plate 1-1, the closing baffle 3 and the ground baffle 4 are respectively connected to a toggle structure 7 through a first linkage rotating shaft 5 and a second linkage rotating shaft 6, the toggle structure 7 is slidably connected to the right side of the mounting plate 1-1, the ground locking structure 2 is fixed on the right side of the mounting plate 1-1, and comprises a lower sliding plate 8, a middle sliding plate 9 and a fixing plate 10, the fixing plate 10 is mounted on the mounting plate 1-1, the middle sliding plate 9 is fixedly connected to the toggle, the middle sliding plate 9 is connected with the fixed plate 10 in a sliding mode, a locking structure 11 for locking the middle sliding plate 9 is arranged on the lower sliding plate 8, a cabinet door hook 8-1 is arranged on the lower portion of the lower sliding plate 8, a reset structure 12 is connected between the lower sliding plate 8 and the fixed plate 10, a micro switch 13 is arranged on the top of the mounting plate 1-1, an ejector rod 7-1 for triggering the micro switch 13 is arranged on the toggle structure 7, a locking coil 14 is arranged on the upper portion of the fixed plate 10, a spring telescopic rod 14-1 is arranged on the locking coil 14, and the spring telescopic rod 14-1 is connected with the hook 9-1 on the upper portion of the middle sliding plate 9 in.
For manual override configuration 1: when manual operation of the mechanism is required, electric operation is not allowed, namely, the power supply of an electric operation loop is cut off through the microswitch 13. Firstly, hanging a door, namely hanging a cabinet door on a cabinet door hook 8-1 of a lower sliding plate 8, so that the lower sliding plate 8 slides downwards under the action of gravity, and then manually operating the toggle structure 7 to move up and down; if under the state of hanging the door not, lower slide 8 will pin middle slide 9 through locking structure 11, and middle slide 9 and toggle structure 7 fixed connection lead to toggle structure 7 unable action. After the door is hung, the manual operation toggle structure 7 moves downwards to drive the grounding baffle 4 to rotate along the hinged part, at the moment, the grounding operation hole is opened, and meanwhile, the ejector rod 7-1 of the toggle structure 7 triggers the action of the microswitch 13 to cut off the electric operation loop; when the manual operation toggle structure 7 moves upwards, the switch-on baffle 3 can be driven to rotate, so that a switch-on operation hole is opened, and meanwhile, the ejector rod 7-1 of the toggle structure 7 also triggers the action of the microswitch 13, so that the microswitch is switched off, and the aim of manual priority is fulfilled.
For the ground latch 2: it is necessary to achieve that the blocking coil 14 is switched on before the operating mechanism is grounded. It is first necessary to hang the cabinet door on the cabinet door hook 8-1 of the lower slide 8, to slide the lower slide 8 downward from gravity, and to release the locking of the locking structure 11 to the intermediate slide 9. When the locking coil 14 is not switched on, the spring telescopic rod 14-1 is in a popup state, the spring telescopic rod 14-1 is connected with the hook 9-1 at the upper part of the middle sliding plate 9 in a clamping and embedding manner, the middle sliding plate 9 can be prevented from sliding downwards, the middle sliding plate 9 is fixedly connected with the toggle structure 7, the toggle structure 7 cannot be manually operated, and at the moment, an operation hole for switching on and grounding cannot be formed. When the locking coil 14 is in the on state, the spring contraction rod 14-1 is retracted, the constraint on the intermediate sliding plate 9 is released, the intermediate sliding plate 9 can move up and down, and the toggle structure 7 can be manually operated, namely, the switching-on baffle 3 and the grounding baffle 4 are manually opened.
In the application, after the cabinet door is taken down, the lower sliding plate 8 is returned to the initial position through the reset structure 12, namely the middle sliding plate 9 is locked by the locking structure 11 and cannot be manually operated, so that the stability and the safety of the structure are ensured; the micro switch 13 is provided with an upper contact and a lower contact, when the toggle structure 7 moves upwards, the ejector rod 7-1 is in contact conduction with the upper contact, and when the toggle structure 7 moves downwards, the ejector rod 7-1 is in contact conduction with the lower contact, the micro switch 13 can be triggered, and the micro switch 13 cuts off the power supply, so that the manual priority is ensured; the locking coil 14(48V DC Jiangyun flying) is also called a locking electromagnet, and the telescopic rod 14-1 of the spring has excellent telescopic performance.
This application is to five-prevention interlocking in the safety distribution, combines manual priority structure 1 and ground connection blocking structure 2, and manual priority structure 1 can realize cutting off the electrical operation return circuit when manual operating device's deciliter, prevents the hidden danger that electrical maloperation and repetitive operation brought effectively, has satisfied the mistake of preventing of five-prevention requirement and has divided, closes the circuit breaker and prevent that the on-load divides, closes the isolator requirement. The grounding locking structure 2 can prohibit the operation of the grounding device when the primary circuit of the switch is in a charged state, and meets the requirements of preventing the grounding switch from being charged and preventing the circuit breaker from being grounded in five-prevention requirements. The novel structure effectively combines mechanical transmission interlocking and electrical locking, has the characteristics of simple structure, small volume and no maintenance, and is worthy of popularization.
According to the utility model discloses a further embodiment, further include, closing shield 3 and ground shield 4 are the racket form, contain baffle 15 and driving lever portion 16, as shown in fig. 4, driving lever portion 16 links to each other with toggle structure 7 through the linkage pivot. The hinge point of the closing baffle 3 and the grounding baffle 4 is located at the transition position of the baffle part 15 and the deflector rod part 16.
According to the utility model discloses a further embodiment, further include, toggle structure 7 is the platelike, links to each other with mounting panel 1-1 spout, mounting panel 1-1 is provided with arcuation groove 1-2 in driving lever portion 16 correspondence, toggle structure 7 is provided with L shape groove 7-2 in the relevant position, the linkage pivot passes arcuation groove 1-2 and L shape groove 7-2. When the toggle structure 7 moves downwards along the L-shaped groove 7-2, the linkage rotating shaft II 6 acts and the action is limited in the arc-shaped groove 1-2 at the lower part, so that the grounding baffle 4 is promoted to rotate clockwise, and the grounding operation hole is opened; when the toggle structure 7 moves upwards, the linkage rotating shaft I5 moves, and the motion of the linkage rotating shaft I is limited in the arc-shaped groove 1-2 above, so that the closing baffle 3 is prompted to rotate anticlockwise, and the closing operation hole is opened.
According to the utility model discloses a further embodiment, further include, middle slide 9 passes through draw-in groove structure 17 and toggle structure 7 fixed connection.
According to another embodiment of the present invention, it further comprises that the lower sliding plate 8 is provided with a first longitudinal waist-shaped groove 8-2 and a second heart-shaped groove 8-3, the middle sliding plate 9 is provided with a second longitudinal waist-shaped groove 9-2, the middle of the second longitudinal waist-shaped groove 9-2 is provided with a transverse opening 9-3, the fixing plate 10 is provided with a transverse waist-shaped groove 10-1, a guide sleeve 18 is arranged between the first longitudinal waist-shaped groove 8-2 and the second longitudinal waist-shaped groove 9-2, the locking structure 11 is a stop pin, and the stop pin sequentially passes through the first heart-shaped groove 8-3, the transverse opening 9-3 and the transverse waist-shaped groove 10-1.
As shown in fig. 5 to 8, when the door is not hung, the stop pin is located at the lower part of the heart-shaped ring groove 8-3 and the transverse opening 9-3 of the middle sliding plate 9, namely, the stop pin locks the middle sliding plate 9, and the middle sliding plate 9 cannot move up and down, as shown in fig. 7; when the door is hung, the lower sliding plate 8 moves downwards under the action of gravity, the notch of the heart-shaped annular groove 8-3 pushes the stop pin leftwards, the stop pin slides into the longitudinal waist-shaped groove II 9-2 through the transverse opening 9-3, the locking of the middle sliding plate 9 can be released, and the middle sliding plate 9 is unlocked and can slide in the longitudinal waist-shaped groove II 9-2 as shown in fig. 8.
According to another embodiment of the present invention, it further comprises that the heart-shaped ring groove 8-3 of the lower sliding plate 8, the transverse opening 9-3 of the middle sliding plate 9 and the transverse waist-shaped groove 10-1 of the fixing plate 10 are connected by a locking structure 11. The structure is simple, the connection is compact, and the sliding connection and the reliable locking of the lower sliding plate 8 and the middle sliding plate 9 are realized.
According to another embodiment of the present invention, there are two sets of the longitudinal waist-shaped grooves one 8-2, the heart-shaped ring groove 8-3 is located between the two sets of the longitudinal waist-shaped grooves one 8-2, and the two sets of the longitudinal waist-shaped grooves one 8-2 are arranged to ensure the stability and reliability of the sliding connection.
According to the utility model discloses a further embodiment, further include, reset structure 12 is return spring, return spring links to each other with lower slide 8, fixed plate 10 couple respectively.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. The utility model provides a middling pressure protection device with manual priority and ground connection shutting, characterized by contains manual priority structure (1) and ground connection shutting structure (2), manual priority structure (1) contains mounting panel (1-1), mounting panel (1-1) left side upper portion articulates there is closing baffle (3), and the lower part articulates there is ground connection baffle (4), closing baffle (3) and ground connection baffle (4) link to each other with toggle structure (7) through linkage pivot one (5), linkage pivot two (6) respectively, toggle structure (7) sliding connection is on the right side of mounting panel (1-1), ground connection shutting structure (2) are fixed on mounting panel (1-1) right side, contain slide (8), middle slide (9) and fixed plate (10) down in proper order, fixed plate (10) are installed on mounting panel (1-1), middle slide (9) and toggle structure (7) fixed connection, slide down (8) and middle slide (9) slide and link to each other, middle slide (9) slide and fixed plate (10) slide and link to each other, be provided with locking structure (11) at locking middle slide (9) down on slide (8), the lower part of slide down (8) is provided with cabinet door couple (8-1), be connected with between slide down (8) and fixed plate (10) reset structure (12), mounting panel (1-1) top is provided with micro-gap switch (13), be provided with ejector pin (7-1) that make micro-gap switch (13) trigger on toggle structure (7), shutting coil (14) is installed on fixed plate (10) upper portion, set up spring telescopic link (14-1) on shutting coil (14), spring telescopic link (14-1) inlay mutually with couple (9-1) inlay card on middle slide (9) upper portion And (4) connecting.
2. Medium voltage protection device with manual override and ground blocking according to claim 1, characterized in that the closing flap (3) and the ground flap (4) are in the shape of a racket, comprising a flap portion (15) and a toggle lever portion (16), the toggle lever portion (16) being connected to the toggle structure (7) through a linkage shaft.
3. The medium voltage protection device with manual override and ground block according to claim 2, characterized in that the toggle structure (7) is plate-shaped and connected to the mounting plate (1-1) in a sliding way, the mounting plate (1-1) is provided with an arc-shaped slot (1-2) at the corresponding position of the toggle portion (16), the toggle structure (7) is provided with an L-shaped slot (7-2) at the corresponding position, and the linkage shaft passes through the arc-shaped slot (1-2) and the L-shaped slot (7-2).
4. Medium voltage protection device with manual override and earthing lockout according to claim 1, characterized in that the intermediate slide (9) is fixedly connected to the toggle mechanism (7) by means of a snap-in groove arrangement (17).
5. Medium voltage protection device with manual override and ground blocking according to claim 1, characterized in that the lower slide (8) is provided with a longitudinal first waist-shaped groove (8-2) and a first heart-shaped groove (8-3), the intermediate slide (9) is provided with a longitudinal second waist-shaped groove (9-2), a transverse opening (9-3) is provided in the middle of the longitudinal second waist-shaped groove (9-2), the fixed plate (10) is provided with a transverse waist-shaped groove (10-1), a guide sleeve (18) is provided between the longitudinal first waist-shaped groove (8-2) and the longitudinal second waist-shaped groove (9-2), the locking structure (11) is a stop pin, and the stop pin passes through the first heart-shaped groove (8-3), the transverse opening (9-3) and the transverse waist-shaped groove (10-1) in sequence.
6. Medium voltage protection device with manual preferential and ground blocking according to claim 5, characterized in that the heart-shaped annular groove (8-3) of the lower slide (8), the transverse opening (9-3) of the intermediate slide (9) and the transverse waist-shaped groove (10-1) of the fixed plate (10) are connected by means of a locking structure (11).
7. Medium voltage protection device with manual preferential and ground blocking according to claim 5, characterized in that said longitudinal waist-shaped grooves one (8-2) have two groups, said heart-shaped annular groove (8-3) being located between two groups of longitudinal waist-shaped grooves one (8-2).
8. Medium voltage protection device with manual override and ground block according to claim 1, characterized in that the return structure (12) is a return spring, which is hooked to the lower slide (8) and the fixed plate (10), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922322277.7U CN211350416U (en) | 2019-12-23 | 2019-12-23 | Medium voltage protection device with manual override and ground lockout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922322277.7U CN211350416U (en) | 2019-12-23 | 2019-12-23 | Medium voltage protection device with manual override and ground lockout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211350416U true CN211350416U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922322277.7U Active CN211350416U (en) | 2019-12-23 | 2019-12-23 | Medium voltage protection device with manual override and ground lockout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211350416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114551181A (en) * | 2022-03-22 | 2022-05-27 | 浙江兴邦电气有限公司 | Middle-positioned inflatable cabinet isolation operating mechanism |
-
2019
- 2019-12-23 CN CN201922322277.7U patent/CN211350416U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114551181A (en) * | 2022-03-22 | 2022-05-27 | 浙江兴邦电气有限公司 | Middle-positioned inflatable cabinet isolation operating mechanism |
| CN114551181B (en) * | 2022-03-22 | 2024-02-13 | 浙江兴邦电气有限公司 | Isolation operating mechanism of centrally-mounted inflatable cabinet |
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