CN212485202U - Direct current isolating switch for urban rail transit feedback device cabinet - Google Patents
Direct current isolating switch for urban rail transit feedback device cabinet Download PDFInfo
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- CN212485202U CN212485202U CN202021362889.5U CN202021362889U CN212485202U CN 212485202 U CN212485202 U CN 212485202U CN 202021362889 U CN202021362889 U CN 202021362889U CN 212485202 U CN212485202 U CN 212485202U
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- contact
- support plate
- isolation
- contact support
- rail transit
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Abstract
The utility model discloses a direct current isolating switch for an urban rail transit feedback device cabinet, which comprises a wiring board and an isolating knife assembly, wherein the wiring board comprises a contact supporting board and a contact base, and the contact supporting board comprises a first contact supporting board and a second contact supporting board connected with the first contact supporting board; keep apart the sword subassembly and include a plurality of isolation swoves and connect the connecting piece of a plurality of isolation swoves, keep apart the sword and include the isolation blade of two parallels and set up the elastic pressing plate in two isolation blade outsides respectively, the connecting piece includes a plurality ofly threaded connection pole and the cover that keeps apart the sword and connect establish a plurality of copper sheathing on the threaded connection pole, the threaded connection pole both ends are provided with gland nut. The utility model discloses a set up a plurality of contact bases, through the firm connection of contact extension board between the contact base, realize the more reliable contact of isolation sword in less space, through setting up the elastic pressure board, the packing force can evenly transmit to each contact surface, guarantees the contact reliability, and installation and regulation are convenient.
Description
Technical Field
The utility model belongs to the technical field of urban rail transit power supply, concretely relates to urban rail transit is direct current isolator for feedback device cabinet.
Background
In order to solve the problems, in recent years, domestic colleges and universities and enterprises carry out beneficial research and exploration on subway energy feedback devices, and inversion feedback schemes are mature and stable day by day, and have the remarkable advantages of high energy conversion efficiency, small maintenance workload and the like, so that the subway traction power supply system is applied to a plurality of urban rail transit systems. The energy feedback device comprises a direct-current isolation switch cabinet, a medium-voltage switch cabinet, an inversion cabinet A-RPF, a feedback transformer and the like, wherein the main equipment in the direct-current isolation switch cabinet is an in-cabinet direct-current isolation switch, and the direct-current isolation switch in the conventional energy feedback device generally adopts a mode of combined operation of a control cabinet and an outdoor isolation switch, so that the fault possibility of certain intermediate installation and control links is increased; in addition, the mechanism design of the outdoor isolating switch needs higher electric clearance and the function of ultraviolet resistance, wind, rain and rain, and the outdoor isolating switch has larger overall dimension and relatively higher price; in order to ensure good contact between the blade of the isolation knife and the contact, springs are arranged on two sides of each isolation knife, the springs at two ends are pressed and fixed on two sides of each isolation knife through nuts, each isolation knife is pressed in the mode, and the isolation knife is installed on the isolation knife with complex adjustment and inconsistent pressing force.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, provide a direct current isolator for urban rail transit feedback device cabinet, this device is through setting up a plurality of contact bases, through the firm connection of contact extension board between the contact base, realizes the more reliable contact of isolation sword in less space, through setting up the elastic pressure plate, the packing force can evenly transmit to each contact surface, guarantees the contact reliability, and installation and regulation are convenient.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a direct current isolator for urban rail transit feedback device cabinet, includes the wiring board and the isolation knife tackle spare of being connected with the wiring board, its characterized in that: the wiring board comprises a contact support plate and a contact base connected through the contact support plate, the contact support plate comprises a first contact support plate and a second contact support plate connected with the first contact support plate, and the contact base comprises a first contact base arranged at one end of the first contact support plate, a second contact base arranged at one end of the second contact support plate and a third contact base arranged at the connecting position of the first contact support plate and the second contact support plate;
keep apart the sword subassembly and include a plurality of isolation swoves and connect the connecting piece of a plurality of isolation swoves, keep apart the sword and include the isolation blade of two parallels and set up the elastic pressure plate in two isolation blade outsides respectively, the connecting piece includes and will be a plurality of threaded connection pole and the cover that keeps apart the sword and connect establish a plurality of copper sheathing on the threaded connection pole, threaded connection pole both ends are provided with gland nut.
The direct current isolating switch for the urban rail transit feedback device cabinet is characterized in that: the first contact support plate and the second contact support plate are connected through a saw-toothed structure.
The third contact base is fixed with the first contact supporting plate and the second contact supporting plate through screws penetrating through the plurality of adjusting holes.
The direct current isolating switch for the urban rail transit feedback device cabinet is characterized in that: the first contact base, the second contact base and the third contact base are respectively connected with the isolation knife, and contacts are arranged on one sides, close to the isolation knife, of the first contact base, the second contact base and the third contact base.
The direct current isolating switch for the urban rail transit feedback device cabinet is characterized in that: the copper sleeve is arranged between two adjacent isolation blades.
The direct current isolating switch for the urban rail transit feedback device cabinet is characterized in that: the elastic pressing plate comprises a middle part recessed towards one side and two end parts with bending angles, the two end parts are strip-shaped tooth structures which are connected in sequence, and the concave side of the middle part and the inner angle sides of the bending angles of the two end parts are the same side.
The direct current isolating switch for the urban rail transit feedback device cabinet is characterized in that: the bending angle is abutted to the position of the contact.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses a connect the third contact base through the contact extension board between first contact base and second contact base, increase the current circulation of this device, realize the more reliable contact of isolation sword in less space, reliable stable, excellent in use effect.
2. The utility model discloses a set up the connecting piece and connect a plurality of isolation swoves, the both ends of connecting piece set up gland nut, keep apart and set up the copper sheathing between the blade, thereby the gland nut at both ends is adjusted to the accessible controls the pressure of elastic pressing plate, and the packing force can evenly transmit to each contact surface, guarantees the contact reliability, and the installation and regulation are convenient.
3. The utility model discloses a to be provided with banding regulation hole on the cockscomb structure that first contact extension board and second contact extension board are connected, avoided in the manufacturing process contact extension board overlength or short cause contact base and bottom plate installation hole site not to correspond and influence the problem of device stability, the practicality is strong, convenient to popularize and use.
To sum up, the utility model discloses a set up a plurality of contact bases, through the firm connection of contact extension board between the contact base, realize the more reliable contact of isolation sword in less space, through setting up the elastic pressure plate, the packing force can evenly transmit to each contact surface, guarantees the contact reliability, and installation and regulation are convenient.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the wiring board of the present invention.
Fig. 3 is a schematic structural view of the isolation knife assembly of the present invention.
Fig. 4 is a schematic structural diagram of the connecting member of the present invention.
Fig. 5 is a schematic structural view of the elastic pressing plate of the present invention.
Fig. 6 is a schematic diagram of the position relationship between the isolation knife assembly and the contact according to the present invention.
Description of reference numerals:
1-a wiring board; 2-isolating the knife assembly; 3-a first contact support plate;
4-a second contact support plate; 5-a first contact base; 6-a second contact base;
7-a third contact base; 8, isolating knife; 9-a connecting piece;
10-a contact; 8-1-a spacer blade; 8-2-elastic pressing plate;
9-1-threaded connecting rod; 9-2-copper sheathing; 9-3-compression nut;
8-2-1-middle part; 8-2-end; 11-adjustment holes.
Detailed Description
As shown in fig. 1-6, the utility model discloses a chassis, the wiring board 1 of setting on the chassis and the isolation knife tackle spare 2 of being connected with wiring board 1, its characterized in that: the wiring board 1 comprises contact support plates and contact bases connected through the contact support plates, each contact support plate comprises a first contact support plate 3 and a second contact support plate 4 connected with the first contact support plate 3, and each contact base comprises a first contact base 5 arranged at one end of the first contact support plate 3, a second contact base 6 arranged at one end of the second contact support plate 4 and a third contact base 7 arranged at the connecting position of the first contact support plate 3 and the second contact support plate 4;
keep apart sword subassembly 2 and include a plurality of isolation sword 8 and connect the connecting piece 9 of a plurality of isolation sword 8, keep apart sword 8 and include two parallel isolation blades 8-1 and set up the elastic pressure plate 8-2 in two isolation blade 8-1 outsides, connecting piece 9 includes with a plurality of the threaded connection pole 9-1 that keeps apart sword 8 and the cover establish a plurality of copper sheathing 9-2 on threaded connection pole 9-1, threaded connection pole 9-1 both ends are provided with gland nut 9-3.
The wiring board comprises a wire inlet board and a wire outlet board, one end of the isolation knife assembly, which is connected with the wire outlet board, is rotatable, the isolation knife assembly is connected with a main shaft controlled by an electric operating mechanism through an insulating pull rod, the main shaft rotates to drive the insulating pull rod to move, so that one side of the isolation knife assembly is abutted to a contact on the wire inlet board, the wiring board is arranged on insulators on the underframe, the bottoms of the first contact base and the second contact base are respectively provided with one insulator, and the underframe is further provided with a manual operation position.
The first contact support plate 3 and the second contact support plate 4 are connected through a saw-toothed structure.
A plurality of adjusting holes 11 are formed in the zigzag structure, and the third contact base 7 is fixed to the first contact support plate 3 and the second contact support plate 4 through screws penetrating through the adjusting holes 11.
The first contact base 5, the second contact base 6 and the third contact base 7 are respectively connected with the isolation knife 8, and contacts 10 are respectively arranged on one sides, close to the isolation knife 8, of the first contact base 5, the second contact base 6 and the third contact base 7.
It should be noted that the utility model, by adding the third contact base between the traditional first contact base and the second contact base, can realize more reliable contact of the isolation knife in a smaller space, i.e. three contact bars are in contact with six isolation blades, increasing the current flux of the device; the contact support plate is arranged to connect the contact bases, so that the stability of the contact bases is improved; furthermore, the utility model discloses a contact extension board includes first contact extension board and second contact extension board, connect through cockscomb structure between first contact extension board and the second contact extension board, the cockscomb structure is provided with banding regulation hole, third contact base accessible strip regulation hole is adjusted and first contact base, clearance between the second contact base, only set up a contact extension board has been avoided, because the error in the manufacturing process, contact extension board overlength or short cause contact base and bottom plate installation hole site not to be from the problem that influences device stability, adjustable fixed mode through the contact extension board, avoid above-mentioned problem, increase the contact reliability of contact and wiring end conductor.
The copper bush 9-2 is arranged between two adjacent isolation blades 8-1.
The elastic pressing plate 8-2 comprises a middle part 8-2-1 recessed towards one side and two end parts 8-2-2 with bending angles, the two end parts 8-2-2 are of a plurality of strip-shaped tooth-shaped structures which are sequentially connected, and the concave side of the middle part 8-2-1 and the inner angle side of the bending angles of the two end parts 8-2-2 are the same side.
The bending angle is abutted against the position of the contact 10.
It should be noted that, the traditional pressing mode of the contact position of the isolation knife is realized by adopting a spring, a pressing plate and a pressing bolt, and fastening nuts are required to be arranged at two ends of each isolation knife for fixing, so that the uniform contact pressure of the contact position is difficult to ensure, and the installation and the adjustment are complicated. And the utility model discloses only connect a plurality of isolation swoves through a connecting piece, the both ends of connecting piece set up gland nut, keep apart and set up the copper sheathing between the blade, thereby the accessible is adjusted the gland nut at both ends and is controlled the pressure of elastic pressing plate, the packing force alright evenly transmit to each contact surface, guarantees the contact reliability, and installation and regulation are convenient.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (7)
1. The utility model provides a direct current isolator is used to urban rail transit feedback device cabinet, includes chassis, sets up wiring board (1) on the chassis and isolation knife tackle spare (2) of being connected with wiring board (1), its characterized in that: the wiring board (1) comprises contact support plates and contact bases connected through the contact support plates, each contact support plate comprises a first contact support plate (3) and a second contact support plate (4) connected with the first contact support plate (3), and each contact base comprises a first contact base (5) arranged at one end of the first contact support plate (3), a second contact base (6) arranged at one end of the second contact support plate (4) and a third contact base (7) arranged at the connecting position of the first contact support plate (3) and the second contact support plate (4);
keep apart sword subassembly (2) including a plurality of isolation sword (8) and connecting piece (9) of a plurality of isolation sword (8), keep apart sword (8) including two parallel isolation blade (8-1) and set up at two elastic pressing plate (8-2) of keeping apart blade (8-1) outsides, connecting piece (9) are including a plurality of threaded connection pole (9-1) and the cover that keep apart sword (8) and connect establish a plurality of copper sheathing (9-2) on threaded connection pole (9-1), threaded connection pole (9-1) both ends are provided with gland nut (9-3).
2. The direct-current isolating switch for the urban rail transit feedback device cabinet according to claim 1, is characterized in that: the first contact support plate (3) is connected with the second contact support plate (4) through a saw-toothed structure.
3. The direct-current isolating switch for the urban rail transit feedback device cabinet according to claim 2, is characterized in that: the sawtooth structure is provided with a plurality of adjusting holes (11), and the third contact base (7) is fixed with the first contact support plate (3) and the second contact support plate (4) through screws penetrating through the adjusting holes (11).
4. The direct-current isolating switch for the urban rail transit feedback device cabinet according to claim 1, is characterized in that: the first contact base (5), the second contact base (6) and the third contact base (7) are respectively connected with the isolation knife (8), and contacts (10) are mounted on one sides, close to the isolation knife (8), of the first contact base (5), the second contact base (6) and the third contact base (7).
5. The direct-current isolating switch for the urban rail transit feedback device cabinet according to claim 1, is characterized in that: the copper sleeve (9-2) is arranged between two adjacent isolation blades (8-1).
6. The direct-current isolating switch for the urban rail transit feedback device cabinet according to claim 1, is characterized in that: the elastic pressing plate (8-2) comprises a middle part (8-2-1) recessed towards one side and two end parts (8-2-2) with bending angles, the two end parts (8-2-2) are of a plurality of strip-shaped tooth-shaped structures which are sequentially connected, and the concave side of the middle part (8-2-1) and the inner angle side of the bending angles of the two end parts (8-2-2) are the same side.
7. The direct-current isolating switch for the urban rail transit feedback device cabinet according to claim 6, wherein: the bending angle is abutted against the position of the contact (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021362889.5U CN212485202U (en) | 2020-07-13 | 2020-07-13 | Direct current isolating switch for urban rail transit feedback device cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021362889.5U CN212485202U (en) | 2020-07-13 | 2020-07-13 | Direct current isolating switch for urban rail transit feedback device cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212485202U true CN212485202U (en) | 2021-02-05 |
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ID=74456361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021362889.5U Active CN212485202U (en) | 2020-07-13 | 2020-07-13 | Direct current isolating switch for urban rail transit feedback device cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212485202U (en) |
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2020
- 2020-07-13 CN CN202021362889.5U patent/CN212485202U/en active Active
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