CN209913282U

CN209913282U - Ring main unit lower door interlocking device

Info

Publication number: CN209913282U
Application number: CN201920893728.XU
Authority: CN
Inventors: 王涛; 尧超; 卿茂林; 周健; 钟雪莲
Original assignee: CHINA CHUAN KAI ELECTRIC Co Ltd
Current assignee: CHINA CHUAN KAI ELECTRIC Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-01-07
Anticipated expiration: 2029-06-13

Abstract

The utility model relates to a looped netowrk cabinet lower door interlock field discloses a looped netowrk cabinet lower door interlock, including lower hanging door, cabinet body baffle, it has lower hanging door to hang on the cabinet body baffle, the inboard is fixed to be equipped with down hanging door jam plate on the lower hanging door, be equipped with interlocking hole on the cabinet body baffle, fixed guide that passes interlocking hole that is equipped with on the cabinet body baffle, be equipped with the direction spout on the guide, be fixed with through location sliding pin in the direction spout and be used for gliding interlocking clamp plate, be equipped with spring hole one on the guide, be equipped with spring hole two on the interlocking clamp plate, spring hole two passes through reset spring with spring hole one and is connected, be equipped with the aggregate unit who is used for rotatory interlocking clamp plate that pushes down on the cabinet body baffle. The utility model discloses simple structure, the cost is lower, has solved because the more complexity that has leaded to interlock of part kind to the problem of the time that the maintainer opened or locked the lower door has been consumeed.

Description

Ring main unit lower door interlocking device

Technical Field

The utility model relates to a looped netowrk cabinet lower door interlock field specifically indicates a looped netowrk cabinet lower door interlock.

Background

Along with the development of urban industry and the improvement of urban living quality, the quality requirements of industrial and living electricity are higher and higher, so that the urban power supply network forms are gradually changed, and a ring network power supply mode is mainly adopted. The looped network power supply quality is stable and reliable, the risk of large-area power failure can be effectively reduced, and irretrievable or huge economic loss can be avoided. The looped netowrk cubical switchboard is one of the main equipment that is used for the looped netowrk power supply, and according to corresponding domestic and foreign standard, the looped netowrk cabinet should have perfect mechanical interlock of preventing mistake: the circuit breaker is prevented from being switched on by mistake, the isolating switch is prevented from being switched on and off by load, the grounding switch is prevented from being powered on in a closed state, the grounding switch is prevented from being switched on by a live switch, and the circuit breaker is prevented from being switched into a live interval by mistake. For the reliability and stability of the equipment and the safety protection of the maintainers and the equipment, a five-prevention device is of great importance.

Lower door interlock mainly prevents that the maintainer from opening the lower door when the indoor components and parts of cable are electrified, has ensured maintainer's safety. At present, most of the existing lower door interlocking devices adopt the linkage form of sheet metal parts in different shapes and a switch operating mechanism, the structure is high in cost, and due to the fact that the types of parts are more, the complexity of the interlocking devices is caused, and therefore the time for opening or locking the lower door by maintainers is consumed.

SUMMERY OF THE UTILITY MODEL

Based on above technical problem, the utility model provides a looped netowrk cabinet lower door interlock. The utility model discloses simple structure, the cost is lower, has solved because the more complexity that has leaded to interlock of part kind to the problem of the time that the maintainer opened or locked the lower door has been consumeed.

For solving the above technical problem, the utility model discloses a technical scheme as follows:

the utility model provides a looped netowrk cabinet lower door interlock, including hanging the door down, cabinet body baffle, it has lower hanging the door to hang to have connect on the cabinet body baffle, hang the fixed door jam plate that hangs down that is equipped with in the inboard on the door down, be equipped with the interlocking hole on the cabinet body baffle, the fixed guide that passes the interlocking hole that is equipped with on the cabinet body baffle, be equipped with the direction spout on the guide, be fixed with through the location sliding pin in the direction spout and be used for gliding interlocking clamp plate, be equipped with spring hole one on the guide, be equipped with spring hole two on the interlocking clamp plate, spring hole two and spring hole one pass through reset spring and be connected, be equipped with the aggregate unit who is used.

As a preferred mode, the interlocking pressing plate is provided with a first guide hole and a second guide hole, the first guide hole is positioned above the second guide hole, the first guide hole and the second guide hole are on the same central line, and the second guide hole and the first guide hole are fixedly connected with the guide sliding chute through positioning sliding pins respectively.

Preferably, the first spring hole is located above the guide chute, and the first spring hole and the guide chute are on the same central line.

Preferably, the linkage device comprises a load switch, and a link mechanism for rotating and pressing down the interlocking pressure plate is arranged on a transmission main shaft of the load switch.

As a preferred mode, the link mechanism comprises a sector plate fixedly arranged on a load switch transmission main shaft, the sector plate is fixedly connected with an arc plate through a first connecting shaft, a partition plate of the cabinet body is provided with a fixed plate, the fixed plate is provided with a rotating plate fixedly connected with the rotating plate through a positioning pin, one end of the arc plate extending around a circle with the circle center is fixedly connected with a rotating plate through a second connecting shaft, and an inclined rod connected with the lower surface of the rotating plate is fixedly arranged on the second connecting shaft.

As a preferred mode, the rotating plate comprises a rotating plate, the rotating plate is fixedly connected with the fixing plate through a positioning pin, the outer side edge of the rotating plate is an arc edge, an arc-shaped connecting lever is fixedly arranged on the outer side edge of the rotating plate, and the inclined rod is connected with the lower surface of the arc-shaped connecting lever.

As a preferable mode, the circle centers of the rotating plate and the arc-shaped crank arm are consistent.

The utility model has the advantages as follows:

(1) the utility model discloses simple structure, the cost is lower, has solved because the more complexity that has leaded to interlock of part kind to the problem of the time that the maintainer opened or locked the lower door has been consumeed.

(2) The utility model discloses a be equipped with guiding hole one, guiding hole two on the interlocking clamp plate, guiding hole one is located the top of guiding hole two, and guiding hole one and two same central lines of guiding hole, and guiding hole two, guiding hole one respectively through location slip pin and direction spout fixed connection, when the linkage pushed down the interlocking clamp plate, can slide in the direction spout through location slip pin on the interlocking clamp plate.

(3) The utility model discloses a spring hole one is located the top of direction spout, and spring hole one and the same central line of direction spout, when the aggregate unit pushed down the interlocking clamp plate, spring hole one is located the top of direction spout, can make reset spring stretch out completely, when the aggregate unit did not push down the interlocking clamp plate, spring hole one is located the top of direction spout, can effectively make reset spring reset fast to make the interlocking clamp plate rise fast; the first spring hole is in the same center with the guide sliding groove, so that the reset spring can be rapidly stretched downwards while the interlocking pressing plate slides downwards in the guide sliding groove.

(4) The utility model discloses a link gear includes load switch, is equipped with the rotatory link mechanism who pushes down interlocking clamp plate on load switch's the transmission main shaft, when load switch is in the major loop combined floodgate or keeps apart, load switch's transmission main shaft can drive link mechanism rotatory, and push down interlocking clamp plate, when interlocking clamp plate pressurized, interlocking clamp plate can slide downwards in the guide way through the location slip pin, make the bottom of interlocking clamp plate press down the hanging door jam plate, because the hanging door jam plate is fixed to be established in the inboard of hanging the door down, so the hanging door under this state can not be got off; therefore, when the load switch is not grounded in a main loop, a maintainer takes down the hanging door to enter or contact with a live component in the cable chamber, and safety accidents are prevented; the linkage mechanism is combined with the structure of the original load switch to realize interlocking, so that the cost of the interlocking device is lower.

(5) The utility model discloses a link mechanism includes the sector plate of fixed establishment on load switch transmission main shaft, and the sector plate is through connecting axle one fixedly connected with arc, is equipped with the fixed plate on the cabinet body baffle, and the rotor plate through locating pin fixed connection on the fixed plate, the arc extends around the one end of circle with its centre of a circle through connecting axle two fixedly connected with rotor plate, and the fixed down tube that is connected with the rotor plate lower surface that is equipped with on connecting axle two; when the transmission main shaft of the load switch drives the sector plate to rotate clockwise by taking the transmission main shaft as a base point, the arc plate can be driven to move upwards on the right, meanwhile, the inclined rod drives the rotating plate to rotate clockwise and press the interlocking pressing plate downwards, the interlocking pressing plate is stressed and slides downwards to press the lower hanging door locking plate, and therefore the lower hanging door is in a state that the lower hanging door cannot be taken down.

(6) The utility model discloses a rotor plate includes the rotor plate, the rotor plate passes through locating pin and fixed plate fixed connection, the outside limit of rotor plate is the arc limit, the fixed arc turning arm that is equipped with on the outside limit of rotor plate, the down tube is connected with the lower surface of arc turning arm, when the ascending motion is done to the arc, the down tube drives the arc turning arm and makes clockwise rotation, because of the fixed arc turning arm that is equipped with of outer panel of arc turning arm and rotor plate, consequently, the arc turning arm uses the locating pin to make clockwise rotation as the basic point.

(7) The utility model discloses a rotor plate is unanimous with the centre of a circle of arc turning arm. When the arc-shaped crank arm rotates clockwise, the circle centers of the rotating plate and the arc-shaped crank arm are consistent, so that the arc-shaped crank arm can accurately press the interlocking pressing plate, and the lower hanging door lock plate can be pressed by the interlocking pressing plate.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the application of the present invention;

FIG. 3 is a schematic view of the structure of the cabinet partition;

FIG. 4 is a schematic structural view of a return spring;

FIG. 5 is an enlarged view of a portion of FIG. 4;

the multifunctional interlocking device comprises an arc-shaped crank arm 1, an interlocking pressing plate 2, a guide piece 3, a guide plate 31, a positioning sliding pin 4, a spring hole I5, a guide sliding groove 6, a guide hole I7, a guide hole II 8, a hanging door 9, a hanging door locking plate 10, a cabinet partition plate 11, a sector plate 12, a connecting shaft I13, an arc-shaped plate 14, a fixing plate 15, a diagonal rod 16, a connecting shaft II 17, a rotating plate 18, a rotating plate 19, a spring hole II 20, a return spring 21 and a load switch 22.

Detailed Description

For a better understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and the following embodiments.

Example 1:

referring to fig. 1 to 5, a looped netowrk cabinet lower door interlock device, including lower hanging door 9, cabinet body baffle 11, it has lower hanging door 9 to hang on cabinet body baffle 11, the inboard is fixed with lower hanging door jam plate 10 on the lower hanging door 9, be equipped with the interlocking hole on the cabinet body baffle 11, fixed being equipped with guide 3 that passes the interlocking hole on the cabinet body baffle 11, be equipped with direction spout 6 on the guide 3, be fixed with through location slip pin 4 in the direction spout 6 and be used for gliding interlocking clamp plate 2, be equipped with spring hole one 5 on the guide 3, be equipped with spring hole two 20 on the interlocking clamp plate 2, spring hole two 20 and spring hole one 5 are connected through reset spring 21, be equipped with the aggregate unit who is used for rotatory lower pressure interlocking clamp plate 2 on the cabinet body baffle 11.

The connecting rod mechanism comprises a sector plate 12 fixedly arranged on a load switch 22 transmission main shaft, the sector plate 12 is fixedly connected with an arc plate 14 through a first connecting shaft 13, a partition plate 11 of the cabinet body is provided with a fixed plate 15, the fixed plate 15 is provided with a rotating plate 19 fixedly connected with a positioning pin, one end of the arc plate 14 extending around a circle with the circle center is fixedly connected with a rotating plate 19 through a second connecting shaft 17, and the second connecting shaft 17 is fixedly provided with an inclined rod 16 connected with the lower surface of the rotating plate 19.

The interlocking pressing plate 2 is provided with a first guide hole 7 and a second guide hole 8, the first guide hole 7 is located above the second guide hole 8, the first guide hole 7 and the second guide hole 8 are on the same central line, and the second guide hole 8 and the first guide hole 7 are fixedly connected with the guide chute 6 through a positioning sliding pin 4 respectively.

The rotating plate 19 comprises a rotating plate 18, the rotating plate 18 is fixedly connected with the fixing plate 15 through a positioning pin, the outer side edge of the rotating plate 18 is an arc edge, an arc-shaped crank arm 1 is fixedly arranged on the outer side edge of the rotating plate 18, and the inclined rod 16 is connected with the lower surface of the arc-shaped crank arm 1.

In this embodiment, when the load switch 22 is in the main circuit closing or isolating state, the main transmission shaft of the load switch 22 will drive the sector plate 12 to rotate clockwise with itself as the base point, meanwhile, the arc-shaped plate 14 is driven to move upwards to the right, the rotating plate 19 is driven to rotate clockwise through the inclined rod 16 and press the interlocking press plate 2 downwards, the interlocking press plate 2 slides downwards in the guide groove through the positioning sliding pin 4 after being stressed, while sliding, the return spring 21 connecting the first spring hole 5 and the second spring hole 20 is in a stretched state, when the sector plate 12 rotates clockwise to reach the limit, the interlocking pressing plate 2 is also limited by the bottommost end of the guide groove, the return spring 21 is in a fully stretched state, the interlocking pressing plate 2 can press the lower hanging door locking plate 10 because the sector plate 12 rotates clockwise to reach the limit, and the lower hanging door 9 cannot be taken down; when the load switch 22 is in grounding and closing, the sector plate 12 rotates counterclockwise along with the transmission main shaft of the load switch 22, so that the arc-shaped crank arm 1 does not press the interlocking pressing plate 2, the return spring 21 is in a compressed state at the moment, the interlocking pressing plate 2 is lifted upwards, and at the moment, a maintainer can take down the hanging door 9; in this embodiment, the interlocking pressing plate 2 is controlled to ascend or descend mainly by using the expansion state of the return spring 21, so that the lower hanging door 9 is taken down or locked.

The utility model discloses simple structure, the cost is lower, has solved because the more complexity that has leaded to interlock of part kind to the problem of the time that the maintainer opened or locked the lower door has been consumeed.

The load switch in this embodiment belongs to the prior art, and therefore, the detailed description thereof is omitted.

The embodiment of the present invention is the above. The specific parameters in the above embodiments and examples are only for the purpose of clearly showing the verification process of the present invention, and are not used to limit the patent protection scope of the present invention, which is still subject to the claims, and all the equivalent structural changes made by using the contents of the specification and the drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a looped netowrk cabinet lower door interlock, includes lower hanging door (9), cabinet body baffle (11), it has lower hanging door (9), its characterized in that to articulate on cabinet body baffle (11): hang door (9) down and go up inboard fixed lower hanging door jam plate (10) of being equipped with, be equipped with the interlocking hole on cabinet body baffle (11), fixed guide (3) that pass the interlocking hole of being equipped with on cabinet body baffle (11), be equipped with on guide (3) and lead spout (6), be fixed with through location slip pin (4) in the guide spout (6) and be used for gliding interlocking clamp plate (2), be equipped with spring hole (5) on guide (3), be equipped with spring hole two (20) on interlocking clamp plate (2), spring hole two (20) are connected through reset spring (21) with spring hole (5), be equipped with the aggregate unit that is used for rotatory holding down interlocking clamp plate (2) on cabinet body baffle (11).

2. The ring main unit lower door interlock device according to claim 1, wherein: be equipped with guiding hole one (7), guiding hole two (8) on interlocking clamp plate (2), guiding hole one (7) are located the top of guiding hole two (8), and guiding hole one (7) and the same central line of guiding hole two (8), guiding hole one (7) are respectively through location slip pin (4) and direction spout (6) fixed connection.

3. The ring main unit lower door interlock device according to claim 1, wherein: the first spring hole (5) is located above the guide sliding groove (6), and the first spring hole (5) and the guide sliding groove (6) are located on the same center line.

4. The ring main unit lower door interlock device according to claim 1, wherein: the linkage device comprises a load switch (22), and a connecting rod mechanism for rotating and pressing down the interlocking pressing plate (2) is arranged on a transmission main shaft of the load switch (22).

5. The ring main unit lower door interlock device according to claim 4, wherein: link mechanism establishes fan-shaped plate (12) on load switch (22) transmission main shaft including the fixed, fan-shaped plate (12) are through connecting axle (13) fixedly connected with arc (14), be equipped with fixed plate (15) on cabinet body baffle (11), rotor plate (19) through locating pin fixed connection on fixed plate (15), arc (14) are passed through connecting axle two (17) fixedly connected with rotor plate (19) around the one end of circle with its centre of a circle extension, fixed down tube (16) of being connected with rotor plate (19) lower surface that is equipped with on connecting axle two (17).

6. The ring main unit lower door interlock device according to claim 5, wherein: the rotating plate (19) comprises a rotating plate (18), the rotating plate (18) is fixedly connected with the fixing plate (15) through a positioning pin, the outer side edge of the rotating plate (18) is an arc edge, an arc-shaped crank arm (1) is fixedly arranged on the outer side edge of the rotating plate (18), and the inclined rod (16) is connected with the lower surface of the arc-shaped crank arm (1).

7. The ring main unit lower door interlock device according to claim 6, wherein: the circle centers of the rotating plate (18) and the arc-shaped crank arm (1) are consistent.