CN118867883A - An indoor high-voltage mobile combined electrical appliance - Google Patents

Abstract

The present invention relates to an indoor high-voltage mobile combination electrical appliance, comprising an isolating switch, a circuit breaker and a mobile unit; the isolating switch comprises a static side contact of the isolating switch and a moving side contact of the isolating switch that cooperate with each other, the static side contact of the isolating switch is directly mounted on the isolating switch, the moving side contact of the isolating switch is mounted on the circuit breaker, the circuit breaker is mounted on the mobile unit, and is driven by the mobile unit to approach or move away from the isolating switch, thereby realizing the opening and closing of the static side contact of the isolating switch and the moving side contact of the isolating switch. The combination electrical appliance of the present invention optimizes the structure of the isolating switch, sets the moving contact of the isolating switch on the circuit breaker, and realizes the movement of the circuit breaker through the cooperation of the mobile unit, realizes the opening and closing between the static contact and the moving contact of the isolating switch by translation, and there is no need to reserve the space required for the contact rotation action, thus saving space; in addition, during subsequent maintenance, the circuit breaker can be directly pulled out so that personnel can cross the circuit breaker to repair the isolating switch, which is very convenient.

Description

An indoor high-voltage mobile combined electrical appliance

Technical Field

The invention relates to the field of high-voltage electrical appliances, in particular to an indoor high-voltage mobile combined electrical appliance.

Background Art

Composite apparatus is a device that combines two or more electrical appliances into a whole according to wiring requirements while maintaining the original performance of each appliance. It has a compact structure, small appearance and installation size, is easy to use, and the performance of each appliance can be better coordinated. Composite apparatus can be divided into low-voltage composite apparatus and high-voltage composite apparatus according to voltage.

At present, the 72.5kV-126kV disconnectors and circuit breakers in open substations are usually two fixed separate devices connected together by a primary conductor. When this layout is applied indoors, it is necessary to comprehensively consider multiple factors such as equipment installation, equipment operation, and equipment maintenance. First, when the disconnector and the circuit breaker are switched on and off, the disconnector needs to be realized by rotating the contacts. Therefore, when installing, it is also necessary to reserve the space required for the rotation of the contacts. In addition to the space required for the installation and operation of the equipment itself, when the disconnector or circuit breaker is subsequently repaired, since the disconnector and circuit breaker are fixed, it is necessary to reserve a certain space next to the disconnector and circuit breaker to facilitate the passage of personnel. Finally, in order to improve safety, the disconnector and circuit breaker will be installed in the substation, which will cause the entire substation to occupy a large building area, with high costs, and is not suitable for indoor substations with limited building land and low investment.

Summary of the invention

The technical problem to be solved by the present invention is to provide an indoor high-voltage mobile combined electrical appliance which occupies a small area and is convenient for maintenance.

In order to solve the above technical problems, the technical solution of the present invention is: an indoor high-voltage mobile combined electrical appliance, the innovation of which is: comprising an isolating switch, a circuit breaker and a mobile unit;

The isolating switch and the circuit breaker are arranged in parallel, the isolating switch comprises a static side contact of the isolating switch and a dynamic side contact of the isolating switch which cooperate with each other, the static side contact of the isolating switch is directly mounted on the isolating switch, the dynamic side contact of the isolating switch is mounted on the circuit breaker, the circuit breaker is mounted on a moving unit, and is driven by the moving unit to approach or move away from the isolating switch, thereby realizing the opening and closing of the static side contact of the isolating switch and the dynamic side contact of the isolating switch.

Furthermore, the isolating switch comprises an isolating switch bracket, an isolating switch post insulator, an isolating switch static side contact and an isolating switch dynamic side contact. There are six isolating switch post insulators in total, and each two are arranged in parallel on the isolating switch bracket in a group. The two isolating switch post insulators in the same group are arranged up and down. The top of the isolating switch post insulator is connected to an isolating switch wiring board, and the isolating switch wiring board extends toward the circuit breaker. The isolating switch static contact is connected to the side of the isolating switch wiring board close to the circuit breaker.

The circuit breaker comprises a circuit breaker bracket, a circuit breaker support insulator, a circuit breaker operating mechanism and a circuit breaker electric control box. There are six circuit breaker support insulators in total, and two circuit breaker support insulators are arranged in parallel on the circuit breaker bracket in a group. The two circuit breaker support insulators in the same group are arranged up and down. The top of the circuit breaker support insulator is connected to a circuit breaker wiring board, and the circuit breaker wiring board extends in the direction of the isolating switch. The circuit breaker wiring board corresponds to the isolating switch wiring board one by one, and the isolating switch moving contact is connected to the side of the circuit breaker wiring board close to the isolating switch bracket;

The mobile unit includes a mobile trolley and a mobile guide rail. The mobile trolley includes a trolley bracket. The circuit breaker bracket is installed on a side of the trolley bracket close to the isolating switch. There is a pair of mobile guide rails, which are distributed in parallel below the trolley bracket, and the mobile guide rails extend along the distribution direction of the isolating switch and the circuit breaker. A mobile roller that matches the mobile guide rail is also installed at the bottom end of the trolley bracket, and the mobile roller is driven to rotate by a mobile motor installed on the trolley bracket, thereby driving the trolley bracket to reciprocate along the mobile guide rail, and realizing that the circuit breaker is close to or away from the isolating switch.

Furthermore, an isolation net is provided on the side of the mobile trolley away from the circuit breaker, the circuit breaker electric control box is installed on the isolation net and is located on the side of the isolation net away from the circuit breaker bracket, a gap is provided on the isolation net for allowing personnel to pass through, an isolation door covering the gap is hingedly connected to the isolation net, and an electrical interlock is provided between the isolation door and the mobile motor;

There are four movable rollers in total, wherein two movable rollers located far from the circuit breaker bracket are connected by a linkage rod to achieve synchronous rotation, and the linkage rod is driven to rotate by a movable motor;

A vertically arranged manual operating rod is also arranged on the side of the trolley bracket, and the bottom end of the manual operating rod is hinged to the linkage rod, and a switching unit is also arranged between the manual operating rod and the linkage rod;

The switching unit is as follows: a switching gear is connected to the outer wall of the linkage rod on the side close to the manual operating rod through a spline, and a switching seat is also connected to the bottom end of the manual operating rod, the switching seat is located above the switching gear, and a gap is left between the switching seat and the switching gear, a switching pin is arranged in the switching seat, the switching pin passes through the entire switching seat from top to bottom, and a through hole is opened in the switching seat for the switching pin to pass through and move;

The upper end of the switching pin shaft is connected with a switching indicator head, the size of the switching indicator head is larger than the size of the switching pin shaft, and the bottom end of the switching indicator head is in a cross shape. At the same time, a cross-shaped groove matching the switching indicator head is also opened on the upper end surface of the switching seat, and an indicator mark is also arranged on the side of the cross-shaped groove on the upper end surface of the switching seat, and an indicator arrow matching the indicator mark is also arranged on the switching indicator head;

A latch is connected to the lower end of the switching pin shaft, and the size of the latch is larger than the diameter of the switching pin shaft. A notch is respectively provided on both sides of the bottom end of the latch pin, so that two notch surfaces are formed at the bottom end of the latch pin, and the two notch surfaces are respectively defined as a first notch surface and a second notch surface, wherein the first notch surface is a combined surface composed of a horizontal surface and an inclined surface, and the second notch surface is an arc-shaped surface. A reset spring is also mounted on the outer wall of the switching pin shaft, and the reset spring is placed in the switching seat. A through hole is also provided in the switching seat for accommodating the reset spring to be installed and telescopically movable. One side of the reset spring is against the latch pin, and the other side is against the inner wall of the switching seat.

Furthermore, a horizontally arranged operating rod auxiliary fixing plate is installed on the trolley bracket, and a U-shaped opening for inserting a manual operating rod is opened on one side of the operating rod auxiliary fixing plate. The operating rod auxiliary fixing plate and the trolley bracket are hinged by a hinge, and a reset torsion spring is also arranged between the operating rod auxiliary fixing plate and the trolley bracket.

Furthermore, a vertically arranged closing stop is provided on one side of the movable trolley close to the isolating switch bracket, and a closing buffer cooperating with the closing stop is provided on one side of the movable guide rail close to the isolating switch bracket.

Furthermore, a circuit breaker closing positioning plate and a circuit breaker opening positioning plate are arranged in parallel on the outer side of the movable guide rail, a circuit breaker positioning rod is connected to the circuit breaker bracket, and a through hole for allowing the circuit breaker positioning rod to extend into is provided on the circuit breaker closing positioning plate and the circuit breaker opening positioning plate, and the circuit breaker positioning rod is driven by an electric push rod to move up and down, and a horizontally arranged positioning rod guide plate is provided on the circuit breaker bracket, and a through hole for allowing the positioning rod to pass through and move up and down is provided on the positioning rod guide plate.

Furthermore, a trolley closing travel switch limit plate, a trolley opening travel switch limit plate, a trolley closing position plate and a trolley opening position plate are also provided between the two movable guide rails;

The trolley closing travel switch limit plate and the trolley opening travel switch limit plate are both located on the side of the same movable guide rail, and the trolley closing position plate and the trolley opening position plate are both located on the side of another movable guide rail;

A travel switch matching with the trolley closing travel switch limit plate and the trolley opening travel switch limit plate is also installed on one side of the trolley support close to the circuit breaker support;

A trolley locking rod is also provided on the side of the trolley bracket away from the circuit breaker bracket. The trolley locking rod is an inverted L-shaped rod formed by connecting a vertical section and a horizontal section. A through hole for allowing the vertical section of the trolley locking rod to extend is also provided on the trolley closing locking plate and the trolley opening locking plate. A trolley locking rod mounting plate is also installed on the trolley bracket. A through hole for allowing the vertical section of the trolley locking rod to extend is provided on the trolley locking rod mounting plate.

A trolley opening limit plate and a trolley closing limit plate for limiting the position of the moving roller are also provided on the moving guide rail, and the moving roller rolls back and forth between the trolley opening limit plate and the trolley closing limit plate.

Furthermore, positioning lifting rods are arranged around the trolley bracket.

The advantages of the present invention are as follows: the combined electrical appliance of the present invention optimizes the structure of the isolating switch, sets the moving contact of the isolating switch on the circuit breaker, and realizes the movement of the circuit breaker through the cooperation of the moving unit, and realizes the connection and disconnection between the static contact and the moving contact of the isolating switch by translation, so there is no need to reserve the space required for the contact rotation action, thus saving space; in addition, during subsequent maintenance, the circuit breaker can be directly pulled out so that personnel can go over the circuit breaker to repair the isolating switch, which is very convenient, and there is no need to reserve a gap for personnel to pass through, further reducing the space required for the entire combined electrical appliance.

For the primary line disconnection operation, the circuit breaker is opened first, and then the mobile trolley is operated to move outward, so that the moving and static contacts of the disconnecting switch are separated, and the line is disconnected; for the primary line closing operation, the mobile trolley can be operated to move inward, so that the moving and static contacts of the disconnecting switch are closed, and then the circuit breaker is operated to close, and the line is connected.

The isolation net designed on the mobile trolley is used to provide a barrier and protection for personnel, preventing them from directly entering between the circuit breaker and the isolating switch during normal operation and causing safety accidents, thereby improving safety performance.

As for the movement of the mobile trolley, through the cooperation of the mobile motor, the manual operating lever and the switching unit, the mobile trolley can realize both automatic horizontal movement and manual horizontal movement by manual operation, realizing manual and automatic integration. In addition, the electrical interlock between the isolation door on the isolation net and the mobile motor can ensure that the mobile motor will not operate when the isolation door is opened, avoiding the phenomenon of malfunction of the mobile motor when the isolation door is open, thereby improving safety.

The switching unit is designed by cooperating among a switching pin shaft, a switching indicating head, a latch and a switching seat. By rotating the switching pin shaft, switching between electric and manual forward and manual reverse is achieved. The structure is simple and the operation is convenient.

The trolley closing stroke switch limit plate and the trolley opening stroke switch limit plate are used to limit the moving position of the mobile trolley, ensuring that the mobile trolley can drive the circuit breaker to move and realize the smooth opening and closing of the isolating switch. The design of the trolley closing positioning plate and the trolley opening positioning plate and other components can play a role of rigid fixation for the mobile trolley after the mobile trolley moves into place, avoiding the arbitrary movement of the mobile trolley and affecting the smooth opening and closing, especially after closing, to avoid abnormal closing caused by the movement of the mobile trolley.

The design of the operating lever auxiliary fixing plate and the reset torsion spring on the trolley bracket can support and fix the manual operating lever when the manual operating lever is not in use, and at the same time facilitate the subsequent removal and use of the manual operating lever.

The cooperation between the closing stop and the closing buffer is used to provide a hard limit for the moving stroke of the mobile trolley, so as to prevent the mobile trolley from moving beyond the limit and causing the circuit breaker and the disconnector to be too close, resulting in abnormal closing of the moving and static contacts of the disconnector, affecting the smooth use of the combination electrical appliance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of an indoor high-voltage mobile combined electrical appliance of the present invention.

FIG. 2 is a schematic diagram of an isolating switch according to the present invention.

FIG. 3 is a schematic diagram of a circuit breaker of the present invention.

FIG. 4 is a schematic diagram of a mobile vehicle according to the present invention.

FIG. 5 is an enlarged schematic diagram of portion A of FIG. 4 .

FIG. 6 is a bottom view of the mobile vehicle of the present invention.

FIG. 7 is a schematic diagram of a switching unit of the present invention.

FIG8 is a cross-sectional view taken along line B-B in FIG7 .

FIG. 9 is a schematic diagram of a switching pin shaft according to the present invention.

FIG. 10 is a bottom view of the indoor high-voltage mobile combined electrical appliance of the present invention.

DETAILED DESCRIPTION

In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

An indoor high-voltage mobile combined electrical appliance as shown in FIGS. 1 to 10 includes a disconnector 1 , a circuit breaker 2 and a mobile unit 3 .

The isolating switch 1 and the circuit breaker 2 are arranged in parallel. The isolating switch 1 comprises a static side contact 13 and a dynamic side contact 14 of the isolating switch which cooperate with each other. The static side contact of the isolating switch is directly mounted on the isolating switch 1, and the dynamic side contact of the isolating switch is mounted on the circuit breaker 2. The circuit breaker 2 is mounted on a mobile unit and is driven by the mobile unit 3 to approach or move away from the isolating switch 1, thereby realizing the opening and closing of the static side contact of the isolating switch and the dynamic side contact of the isolating switch.

As shown in the schematic diagram of Figure 2, the isolating switch 1 includes an isolating switch bracket 11, an isolating switch post insulator 12, an isolating switch static side contact 13 and an isolating switch moving side contact 14. There are six isolating switch post insulators 12 in total, and each two are arranged in parallel on the isolating switch bracket 11 in a group. The two isolating switch post insulators 12 in the same group are distributed up and down. An isolating switch wiring board 15 is connected to the top of the isolating switch post insulator 12. The isolating switch wiring board 15 and the isolating switch post insulator 12 are connected and fixed by bolts and nuts. The isolating switch wiring board 15 extends toward the circuit breaker 2. The isolating switch static contact 13 is connected to the side of the isolating switch wiring board 15 close to the circuit breaker 2. The isolating switch static contact 13 is fixed to the isolating switch wiring board 15 by bolts and nuts. The isolating switch static contact 13 corresponds to each isolating switch post insulator 12 one by one.

As shown in the schematic diagram of Figure 3, the circuit breaker 2 includes a circuit breaker bracket 21, a circuit breaker support insulator 22, a circuit breaker operating mechanism 23 and a circuit breaker electric control box 24. There are six circuit breaker support insulators 22 in total, and each two are arranged in parallel on the circuit breaker bracket 21 in a group. The two circuit breaker support insulators 22 in the same group are distributed up and down. A circuit breaker terminal board 25 is connected to the top of the circuit breaker support insulator 22. The circuit breaker terminal board 25 and the circuit breaker support insulator 22 are fixed by bolts and nuts. The circuit breaker terminal board 25 extends toward the disconnector 1, and the circuit breaker terminal board 25 corresponds to the disconnector terminal board 15 one by one. The disconnector moving contact 14 is connected to the side of the circuit breaker terminal board 25 close to the disconnector bracket 11.

As shown in the schematic diagram of Figure 4, the mobile unit 3 includes a mobile trolley and a mobile guide rail 31. The mobile trolley includes a trolley bracket 32, which is a rectangular bracket formed by connecting a plurality of channel steels and a flat plate. The circuit breaker bracket 21 is installed on the side of the trolley bracket 32 close to the isolating switch bracket 11. The bottom end of the circuit breaker bracket 21 is fixed to the trolley bracket 32 by bolts. There is a pair of mobile guide rails 31, which are arranged in parallel below the trolley bracket 32, and the mobile guide rails 31 extend along the distribution direction of the isolating switch 1 and the circuit breaker 2. A moving roller 33 that cooperates with the moving guide rail 31 is also installed at the bottom end of the trolley bracket 32, and the moving roller 33 is driven to rotate by a moving motor 34 installed on the trolley bracket 32, thereby driving the trolley bracket 32 to reciprocate along the eye direction of the moving guide rail 31, and realizing the circuit breaker 2 approaching or moving away from the isolating switch 1, thereby realizing the opening and closing between the isolating switch static contact 13 and the isolating switch moving contact 14.

The movable roller 33 is a T-shaped structure formed by connecting a roller section and a limiting section. The size of the limiting section is larger than that of the roller section, and the two movable rollers 33 installed on both sides of the trolley bracket 32 and respectively located on the two movable guide rails 31 are distributed opposite to or back to each other, that is, the roller sections of the two movable rollers 33 are both located on the inner side, or the limiting sections of the two movable rollers 33 are both located on the inner side. With such a distribution method, the limiting section of the movable roller 33 is used to limit the rolling stroke of the movable roller 33 on the movable guide rail 31, thereby avoiding the phenomenon of the movable roller 33 rolling off the movable guide rail 31, providing a good foundation for the smooth movement of the circuit breaker 2.

An isolation net 37 is also provided on the trolley support 32 of the mobile trolley at a side away from the circuit breaker support 21. The isolation net 37 is a rectangular structure formed by welding a plurality of square tubes. The circuit breaker electric control box 24 is installed on the isolation net 37, and the circuit breaker electric control box 24 is located on a side of the isolation net 37 away from the circuit breaker support 21. In this way, personnel can operate the circuit breaker electric control box 24 without crossing the isolation net 37, thereby realizing manual operation of the circuit breaker 2, which is highly safe.

A gap is provided on the isolation net 37 for allowing people to pass through, and an isolation door 38 covering the gap is hinged on the isolation net 37, and an electrical interlock is provided between the isolation door 38 and the mobile motor 34, and the cooperation of the electrical interlock is as follows: the mobile motor 34 can work only when the isolation door 38 is closed, and the isolation door 38 can be opened only when the mobile motor 34 stops working. This interlock ensures that when the isolation door 38 is closed, the safety hazard caused by the misoperation of the mobile motor 34 is avoided.

There are four moving rollers 33 in total, among which two moving rollers 33 located far away from the circuit breaker bracket 21 are connected by a linkage rod 36 to achieve synchronous rotation, and the linkage rod 36 is driven to rotate by the moving motor 34, thereby driving the two moving rollers 33 to rotate synchronously in the same direction. A reducer 35 is also arranged between the moving motor 34 and the linkage rod 36.

A vertically arranged manual operating rod 4 is also arranged beside the trolley bracket 32 , and the bottom end of the manual operating rod 4 is hinged to the linkage rod 36 , and a switching unit is also arranged between the manual operating rod 4 and the linkage rod 36 .

As shown in Figures 7 to 9, the switching unit is: a switching gear 41 is connected to the outer wall of the linkage rod 36 on the side close to the manual operating rod 4 through a spline to achieve synchronous rotation between the switching gear 41 and the linkage rod 36, and a switching seat 42 is also connected to the bottom end of the manual operating rod 36. The switching seat 42 and the manual operating rod 36 are fixedly connected. The switching seat 42 is located above the switching gear 41, and a gap is left between the switching seat 42 and the switching gear 41. A switching pin 43 is arranged in the switching seat 42. The switching pin 43 runs through the entire switching seat 42 from top to bottom, and a through hole is opened in the switching seat 42 to allow the switching pin 43 to pass through and move.

A switching indicator head 44 is connected to the upper end of the switching pin shaft 43. The size of the switching indicator head 44 is larger than that of the switching pin shaft 43. A slot for the top end of the switching pin shaft 43 to be inserted is provided at the bottom end of the switching indicator head 44. After the top end of the switching pin shaft 43 is inserted into the slot of the switching indicator head 44, the switching pin shaft 43 and the switching indicator head 44 are relatively fixed by the cooperation of a locking screw. The bottom end of the switching indicator head 44 is in a cross shape. At the same time, a cross-shaped groove matching the bottom end of the switching indicator head 44 is provided on the upper end surface of the switching seat 42. 4 is inserted into the cross-shaped groove of the switching seat 42, so as to realize the relative fixation between the switching indicator head 44 and the switching seat 42, so as to avoid the relative rotation between the switching indicator head 44 and the switching seat 42 after the switching, which may affect the subsequent smooth switching. An indicator mark is also arranged on the upper end surface of the switching seat 42 beside the cross-shaped groove, and the indicator mark includes electric, manual forward and manual backward. An indicator arrow matched with the indicator mark is also arranged on the switching indicator head 44. Through the cooperation of the indicator mark and the indicator arrow, it is convenient for personnel to quickly understand the current status.

A latch 45 is connected to the lower end of the switching pin shaft 43. The size of the latch 45 is larger than the diameter of the switching pin shaft 43. A notch is opened on both sides of the bottom end of the latch 45, so that two notch surfaces are formed at the bottom end of the latch 45, and the two notch surfaces are respectively defined as a first notch surface 451 and a second notch surface 452, wherein the first notch surface 451 is a combined surface composed of a horizontal plane and an inclined plane, the horizontal plane of the first notch surface 451 is located on the outside, and the inclination direction of the inclined plane of the first notch surface 451 is gradually inclined downward from the side of the inclined plane close to the horizontal plane, the second notch surface 452 is an arc surface, and the size of the notch at the second notch surface 452 is larger than the size at the first notch surface 451. By designing different first notch surfaces 451 and second notch surfaces 452, when the subsequent latch 45 cooperates with the switching gear 41, a one-way movement similar to that of a ratchet is formed. When the latch 45 is inserted into the switching gear 41, when the first notch surface 451 is on the left and the second notch surface 452 is on the right, that is, the state shown in Figure 9, when the manual operating lever 4 rotates clockwise, it can drive the switching gear 41 to rotate clockwise, and when the manual operating lever 4 rotates counterclockwise, it cannot drive the switching gear 41 to rotate. When the first notch surface 451 is on the right and the second notch surface 452 is on the left, when the manual operating lever 4 rotates clockwise, it cannot drive the switching gear 41 to rotate, and when the manual operating lever 4 rotates counterclockwise, it can drive the switching gear 41 to rotate counterclockwise. Through such a design, manual advance or manual retreat can be achieved.

A return spring 46 is also mounted on the outer wall of the switch pin 43, and the return spring 46 is placed in the switch seat 42. A through hole is also opened in the switch seat 42 for the return spring 46 to be installed and telescopically movable. One side of the return spring 46 abuts against the latch 45, and the other side of the return spring 46 abuts against the inner wall of the switch seat 42. For the design of the switch unit, the switch pin 43, the switch indicator head 44, the latch 45 and the switch seat 42 are matched. The switch indicator head 44 is manually rotated to drive the rotation of the switch pin 43 to achieve the change of different positions of the latch 45, and realize the switching between electric and manual forward and manual backward of the mobile trolley. The structure is simple and the operation is convenient.

A horizontally arranged operating rod auxiliary fixing plate 47 is also installed on the trolley bracket 32. The operating rod auxiliary fixing plate 47 is a rectangular plate. A U-shaped opening for inserting the manual operating rod 4 is opened on one side of the operating rod auxiliary fixing plate 47. The operating rod auxiliary fixing plate 47 and the trolley bracket 32 are hinged by a hinge 48. A reset torsion spring is also arranged between the operating rod auxiliary fixing plate 47 and the trolley bracket 32. The reset torsion spring design ensures that the operating rod auxiliary fixing plate 47 can be kept in a horizontal state without the action of external force. At the same time, when the manual operating rod 4 needs to be used later, a certain force can be applied to the operating rod auxiliary fixing plate 47 to move the operating rod auxiliary fixing plate 47, so that the manual operating rod 4 can be easily separated from the operating rod auxiliary fixing plate 47. The design of the operating rod auxiliary fixing plate 47 and the reset torsion spring on the trolley bracket 32 can play a supporting and fixing role for the manual operating rod 4 when the manual operating rod 4 is not in use, and at the same time facilitate the subsequent removal and use of the manual operating rod 4.

A vertically arranged closing stopper 49 is also provided on one side of the trolley support 32 of the mobile trolley near the isolating switch support 11. The closing stopper 49 is in the shape of an elongated strip, and the height of the bottom end surface of the closing stopper 49 is lower than the height of the trolley support 32. The upper end of the closing stopper 49 is fixed to the trolley support 32 by bolts. At the same time, a closing buffer 491 cooperating with the closing stopper 49 is also provided between the two moving guide rails 31 and on one side near the isolating switch support 11. The cooperation between the closing stopper 49 and the closing buffer 491 is used to provide a hard limit for the moving stroke of the mobile trolley, so as to avoid the mobile trolley from moving beyond the limit and causing the circuit breaker 1 to be too close to the isolating switch 2, which causes abnormal closing of the isolating switch moving contact 14 and the isolating switch static contact 13, and affects the smooth use of the combination electrical appliance.

A circuit breaker closing card plate 5 and a circuit breaker opening card plate 51 are arranged in parallel on the outside of the movable guide rail 31, and the circuit breaker closing card plate 5 is located on the side close to the disconnector bracket 11, and the circuit breaker opening card plate 51 is located on the side away from the disconnector bracket 11. A vertically arranged circuit breaker card rod 26 is also connected to the circuit breaker bracket 21, and the bottom of the circuit breaker card rod 26 is conical. The circuit breaker closing card plate 5 and the circuit breaker opening card plate 51 are both C-shaped channel steel structures. A through hole for the circuit breaker card rod 26 to extend into is also opened on the circuit breaker closing card plate 5 and the circuit breaker opening card plate 51, and the through holes on the circuit breaker closing card plate 5 and the circuit breaker opening card plate 51 are waist-shaped holes. The circuit breaker card rod 26 is driven by an electric push rod installed on the circuit breaker bracket 21. The breaker bracket 21 is also provided with a horizontally arranged locking rod guide plate 27, which is an angle iron structure composed of a horizontal plate and a vertical plate. A through hole for allowing the circuit breaker locking rod 26 to pass through and move up and down is opened on the horizontal plate of the locking rod guide plate 27. The through hole is a waist-shaped hole. The locking rod guide plate 27 plays a certain guiding role in the up and down movement of the circuit breaker locking rod 26, so as to avoid the deviation of the locking rod guide plate 27. The through hole is designed as a waist-shaped hole, so that the circuit breaker locking rod 26 can have a certain range of micro-motion and a certain deviation allowable value.

A trolley closing travel switch limit plate 54, a trolley opening travel switch limit plate 55, a trolley closing positioning plate 52 and a trolley opening positioning plate 53 are also provided between the two movable guide rails 31. The trolley closing travel switch limit plate 54 and the trolley opening travel switch limit plate 55 are both located on the side of the same movable guide rail 31, and the trolley closing positioning plate 52 and the trolley opening positioning plate 53 are both located on the side of the other movable guide rail 31.

A travel switch 58 that cooperates with the trolley closing travel switch limit plate 54 and the trolley opening travel switch limit plate 55 is also installed on one side of the trolley support 32 close to the circuit breaker support 21 .

The trolley closing positioning plate 52 and the trolley opening positioning plate 53 are also C-shaped channel steel structures. A trolley positioning rod 59 is also provided on the side of the trolley bracket 32 away from the circuit breaker bracket 21. The trolley positioning rod 59 is an inverted L-shaped rod formed by connecting a vertical section and a horizontal section. A through hole for accommodating the vertical section of the trolley positioning rod 59 is also provided on the trolley closing positioning plate 52 and the trolley opening positioning plate 53. The through hole is also a waist-shaped hole. A trolley positioning rod mounting plate is also installed on the trolley bracket 32. A through hole for accommodating the vertical section of the trolley positioning rod 59 is provided on the trolley positioning rod mounting plate. The through hole is a circular hole.

A trolley opening limit plate 57 and a trolley closing limit plate for limiting the position of the moving roller 33 are also provided on the moving guide rail 31. The opening limit plate 57 and the trolley closing limit plate are both located above the moving guide rail 31, and the trolley closing limit plate is located on the side close to the isolating switch bracket 11, and the trolley opening limit plate 57 is located on the side away from the isolating switch bracket 11. The trolley opening limit plate 57 and the trolley closing limit plate are both inverted V-shaped structures formed by two inclined plates connected together. The side ends of the trolley opening limit plate 57 and the trolley closing limit plate are installed on the moving guide rail 31 through limiting fixing plates. The moving roller 33 rolls back and forth between the trolley opening limit plate 57 and the trolley closing limit plate, and the trolley opening limit plate 57 and the trolley closing limit plate are used to provide a hard limit to the moving stroke of the moving roller 33, thereby avoiding the moving stroke of the moving trolley from exceeding the limit.

A positioning lifting rod 6 is also arranged around the trolley bracket 32. The positioning lifting rod 6 is an electric lifting rod or a manual lifting rod commonly used in the market, and its structure is a prior art, which will not be described in detail in this embodiment.

The indoor high-voltage mobile combination electrical appliance of the present invention improves the traditional combination electrical appliance of the isolating switch and the circuit breaker, arranges the isolating switch moving contact 14 on the circuit breaker 2, and realizes the movement of the circuit breaker 2 through the cooperation of the moving unit 3, and realizes the connection and disconnection between the isolating switch static contact 13 and the isolating switch moving contact 14 by translation, so there is no need to reserve the space required for the contact rotation action, thus saving space. Moreover, through such improvement, for the design of the isolating switch 1, only the isolating switch bracket 11, the isolating switch support insulator 12, the isolating switch static contact 13 and the isolating switch moving contact 14 are retained, and the overall structure of the isolating switch 1 is also simplified.

When the indoor high-voltage mobile combined electrical appliance of the present invention is used, a line closing operation is performed, and the switch indicator head 44 is toggled to point to the electric mark. At this time, the pin shaft 45 will be pressed against the circumferential outer wall of the switching gear 41 under the action of the reset spring 46, and will not be stuck in the tooth groove of the switching gear 41. Then, the moving motor 34 drives the moving roller 33 to rotate, thereby driving the moving trolley to move along the moving guide rail 31 toward the isolating switch 1 until the travel switch 58 on the trolley bracket 32 detects the trolley closing travel switch limit plate 54, the moving motor 34 stops working, and the moving trolley stops moving. At this time, the isolating switch moving contact 14 and the isolating switch moving contact 14 are closed. The static contact 13 of the switch has been closed, completing the closing of the disconnector 1, and then the circuit breaker 2 is operated to close the circuit, and the line is connected. At this time, the closing stopper 49 abuts against the closing buffer 491, and the circuit breaker locking rod 26 moves downward and extends into the through hole of the circuit breaker closing locking plate 5, and then the trolley locking rod 59 is manually inserted, so that the vertical section of the trolley locking rod 59 passes through the through hole on the trolley locking rod mounting plate and the through hole on the trolley closing locking plate 52 in turn, and the position of the mobile trolley and the circuit breaker 2 is locked by multiple means to avoid the phenomenon of the mobile trolley moving horizontally at will, which may cause the disconnection of the disconnector 1 or the incomplete closing, the closing over limit and other undesirable phenomena.

During the primary line disconnection operation, the circuit breaker positioning rod 26 moves upward first, the trolley positioning rod 59 is taken out, and the trolley is unlocked. Then, the circuit breaker 1 is opened first, and then the mobile motor 34 is reversed to drive the mobile trolley to move along the moving guide rail 31 away from the disconnector 1 until the travel switch 58 on the trolley bracket 32 detects the trolley opening travel switch limit plate 55, and the mobile trolley stops moving, so that the disconnector moving contact 14 and the disconnector static contact 13 are separated, and the line is disconnected. Similarly, after the mobile trolley moves into place, the circuit breaker positioning rod 26 moves downward and extends into the through hole of the circuit breaker opening positioning plate 51, and then the trolley positioning rod 59 is manually inserted, so that the vertical section of the trolley positioning rod 59 passes through the through hole on the trolley positioning rod mounting plate and the through hole on the trolley opening positioning plate 53 in sequence, and the mobile trolley and the circuit breaker 2 are locked.

In addition, during subsequent maintenance, the same means can be used to directly pull out the circuit breaker 2 using a mobile cart, so that personnel can cross the circuit breaker 2 to repair the disconnector 1, or repair the circuit breaker 2 at the same time, which is very convenient and does not require a gap to be reserved for personnel to pass through, further reducing the space required for the entire combination electrical appliance.

If the moving motor 34 fails or is in a power outage, the moving trolley can be driven to move manually by first toggling the switch indicator head 44. According to whether the moving trolley needs to move forward or backward, different toggling directions of the switch indicator head 44 are selected to make the pin shaft 45 insert into the tooth groove of the switching gear 41 in different directions, and then the manual operating lever 4 is rotated back and forth to realize the forward or backward movement of the moving trolley.

The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims (8)

1. An indoor high-voltage mobile combined electrical apparatus, which is characterized in that: comprises a disconnecting switch, a circuit breaker and a mobile unit;

The isolating switch and the circuit breaker are distributed in parallel, the isolating switch comprises an isolating switch fixed side contact and an isolating switch movable side contact which are matched with each other, the isolating switch fixed side contact is directly arranged on the isolating switch, the isolating switch movable side contact is arranged on the circuit breaker, the circuit breaker is arranged on the moving unit, and the moving unit drives the circuit breaker to approach or be far away from the isolating switch, so that the opening and closing of the isolating switch fixed side contact and the isolating switch movable side contact are realized.

2. The indoor high-voltage mobile power combiner of claim 1, wherein: the isolating switch comprises isolating switch supports, isolating switch post insulators, isolating switch static side contacts and isolating switch moving side contacts, wherein the number of the isolating switch post insulators is six, each isolating switch post insulators is a group which is distributed on the isolating switch supports in parallel, the two isolating switch post insulators of the same group are distributed up and down, the top ends of the isolating switch post insulators are connected with an isolating switch wiring board, the isolating switch wiring board extends towards the direction of the circuit breaker, and one side of the isolating switch wiring board, which is close to the circuit breaker, is connected with the isolating switch static contacts;

The circuit breaker comprises a circuit breaker support, circuit breaker post insulators, a circuit breaker operating mechanism and a circuit breaker electric cabinet, wherein the total number of the circuit breaker post insulators is six, each two circuit breaker post insulators are distributed on the circuit breaker support in parallel, the two circuit breaker post insulators in the same group are distributed up and down, the top ends of the circuit breaker post insulators are connected with a circuit breaker wiring board, the circuit breaker wiring board extends towards the direction of the isolating switch, the circuit breaker wiring boards are in one-to-one correspondence with the isolating switch wiring boards, and one side of the circuit breaker wiring board, which is close to the isolating switch support, is connected with an isolating switch moving contact;

the movable unit comprises a movable trolley and a movable guide rail, the movable trolley comprises a trolley support, the breaker support is arranged on one side, close to the isolating switch, of the trolley support, the movable guide rails are arranged in a pair, are distributed below the trolley support side by side, extend along the distribution direction of the isolating switch and the breaker, the bottom end of the trolley support is further provided with movable rollers matched with the movable guide rails, and the movable rollers are driven by a movable motor arranged on the trolley support to rotate, so that the trolley support is driven to reciprocate along the movable guide rail, and the breaker is enabled to approach or depart from the isolating switch.

3. The indoor high-voltage mobile power combiner of claim 2, wherein: the movable trolley is characterized in that an isolation net is further arranged on one side, far away from the circuit breaker, of the movable trolley, the circuit breaker electric cabinet is arranged on the isolation net and is positioned on one side, far away from the circuit breaker support, of the isolation net, a gap for passing a person is further formed in the isolation net, an isolation door covering the gap is hinged to the isolation net, and an electric interlock is arranged between the isolation door and the movable motor;

The number of the movable rollers is four, wherein the two movable rollers far away from the breaker bracket are connected through a linkage rod to realize synchronous rotation, and the linkage rod is driven by a movable motor to rotate;

A vertical manual operation rod is further arranged beside the trolley support, the bottom end of the manual operation rod is hinged with the linkage rod, and a switching unit is further arranged between the manual operation rod and the linkage rod;

the switching unit is as follows: a switching gear is connected to the outer wall of one side of the linkage rod, which is close to the manual operation rod, through a spline, a switching seat is also connected to the bottom end of the manual operation rod, the switching seat is positioned above the switching gear, a gap is reserved between the switching seat and the switching gear, a switching pin shaft is arranged in the switching seat, the switching pin shaft penetrates through the whole switching seat from top to bottom, and a through hole which is used for allowing the switching pin shaft to penetrate and move is formed in the switching seat;

The upper end of the switching pin shaft is connected with a switching indicating head, the size of the switching indicating head is larger than that of the switching pin shaft, the bottom end of the switching indicating head is in a cross shape, meanwhile, a cross-shaped groove matched with the switching indicating head is formed in the upper end face of the switching seat, an indicating mark is further arranged on the upper end face of the switching seat and beside the cross-shaped groove, and an indicating arrow matched with the indicating mark is further arranged on the switching indicating head;

The lower extreme of switching pin axle is connected with a bolt, the size of bolt is greater than the diameter of switching pin axle, open respectively in the both sides of bolt bottom to make the bottom of bolt form two breach faces, and define two breach faces respectively and be first breach face, second breach face, wherein, first breach face is the combined surface that comprises a horizontal plane and an inclined plane jointly, and the second breach face is the arcwall face, still overlaps on the outer wall of switching pin axle and is equipped with a reset spring, reset spring arranges in the switching seat, still opens in the switching seat and holds reset spring installation and flexible movable through-hole, and reset spring's one side supports on the bolt, and the opposite side supports on the inner wall of switching seat.

4. The indoor high-voltage mobile power combiner of claim 3, wherein: still install the auxiliary fixed plate of action bars that a level set up on the dolly support, open one side at the auxiliary fixed plate of action bars has the U-shaped opening that holds manual action bars male, it is articulated through the hinge between auxiliary fixed plate of action bars and the dolly support, still be provided with reset torsion spring between auxiliary fixed plate of action bars and the dolly support.

5. The indoor high-voltage mobile power combiner of claim 2, wherein: the side of the movable trolley, which is close to the isolating switch support, is also provided with a closing stop which is vertically arranged, and simultaneously, one side of the movable guide rail, which is close to the isolating switch support, is also provided with a closing buffer which is matched with the closing stop.

6. The indoor high-voltage mobile power combiner of claim 2, wherein: the circuit breaker switch-on screens board and circuit breaker divides the brake screens board that the movable guide rail's outside still is provided with side by side and distributes, still is connected with the circuit breaker screens pole of a vertical setting on the circuit breaker support, still opens the through-hole that holds circuit breaker screens pole and stretch into on circuit breaker switch-on screens board and circuit breaker divides the brake screens board, circuit breaker screens pole carries out the oscilaltion by an electric putter drive, still is provided with the screens pole deflector of a level setting on the circuit breaker support, opens on screens pole deflector and holds the through-hole that screens pole passed and the oscilaltion.

7. The indoor high-voltage mobile power combiner of claim 2, wherein: a trolley closing travel switch limiting plate, a trolley opening travel switch limiting plate, a trolley closing clamping plate and a trolley opening clamping plate are further arranged between the two movable guide rails;

The trolley closing travel switch limiting plate and the trolley opening travel switch limiting plate are both positioned at the side of the same movable guide rail, and the trolley closing clamping plate and the trolley opening clamping plate are both positioned at the side of the other movable guide rail;

A travel switch matched with the trolley closing travel switch limiting plate and the trolley opening travel switch limiting plate is further arranged on one side, close to the breaker support, of the trolley support;

A trolley clamping rod is also arranged on one side of the trolley bracket far away from the breaker bracket, the trolley clamping rod is an inverted L-shaped rod formed by jointly connecting a vertical section and a horizontal section, the trolley brake-closing clamping plate and the trolley brake-separating clamping plate are also provided with through holes for accommodating the vertical sections of the trolley clamping rods, the trolley bracket is also provided with a trolley clamping rod mounting plate, and the trolley clamping rod mounting plate is provided with through holes for accommodating the vertical sections of the trolley clamping rods;

The trolley brake-separating limiting plate and the trolley brake-closing limiting plate for limiting the position of the movable roller are further arranged on the movable guide rail, and the movable roller rolls back and forth between the trolley brake-separating limiting plate and the trolley brake-closing limiting plate.

8. The indoor high-voltage mobile power combiner of claim 2, wherein: positioning lifting rods are further arranged around the trolley support.