CN211957528U - High-voltage load switch interlocking mechanism - Google Patents
High-voltage load switch interlocking mechanism Download PDFInfo
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- CN211957528U CN211957528U CN202021055663.0U CN202021055663U CN211957528U CN 211957528 U CN211957528 U CN 211957528U CN 202021055663 U CN202021055663 U CN 202021055663U CN 211957528 U CN211957528 U CN 211957528U
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Abstract
The interlocking mechanism comprises an interlocking mechanism, wherein the interlocking mechanism comprises a first split lock arranged on a rotating shaft of a ground knife and a second split lock arranged on a rotating shaft of a main knife; first components of a whole that can function independently lock includes heterotypic snap ring, first casing, the spring, push away spring and spring bolt spacer, the second components of a whole that can function independently lock includes the second casing, the cam, switching spring and spring bracket, the advantage lies in, when the main sword combined floodgate in-process, main sword pivot drives the clockwise rotation of second casing, the second casing drives the cam and carries out clockwise rotation simultaneously, the cam is at clockwise rotation in-process, its radius with the spring bolt contact surface increases gradually, push away the spring shrink on the spring bolt, and this moment, the earthing knife must be in the separating brake state, if be in combined floodgate state, then the unable target in place of lock tongue, the right angle breach department that gets into heterotypic snap ring, the unable combined floodgate of main sword when.
Description
Technical Field
The utility model relates to a high voltage load switch especially relates to a high voltage load switch interlocking device.
Background
The high-voltage load switch and the combined electrical apparatus are suitable for three-phase alternating current 10KV and 50HZ power systems, or are matched with complete sets of distribution equipment, ring network switch cabinets, combined substations and the like for use, are widely used for domain network construction and transformation projects, industrial and mining enterprises, high-rise buildings, public facilities and the like, can be used as a ring network power supply or terminal, and play roles in distribution, control and protection of electric energy. The power supply has the advantages of large breaking capacity, safety, reliability, long electric service life, capability of frequent operation, compact structure, small volume, light weight, basically no need of maintenance and the like. Has cut-off rated current and overload current. The short-circuit current can be switched off and the equipment phase-lack operation capability can be prevented, the switch has an obvious visible isolation fracture, and the grounding switch electric spring mechanism with the switching-on and switching-off capability is assembled, so that remote control can be realized.
For avoiding overhauing high-voltage load switch, during the operation, the mistake closes a floodgate simultaneously with earthing knife and main sword, causes the circuit short circuit to arouse the accident, usually, all be equipped with interlock on high-voltage load switch, at present, current insurance locking device structure is comparatively simple, and the firmness is relatively poor, carries out the violent operation when operating personnel mistake, or closes a floodgate and break a floodgate when exerting oneself too big, and insurance locking device is very easily damaged, makes its insurance function inefficacy, causes the accident equally easily.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, a high-voltage load switch interlocking mechanism which is more reliable in structure and higher in safety is specially manufactured.
In order to achieve the above object, the present invention provides the following solutions: the interlocking mechanism comprises a first split lock arranged on a rotating shaft of a ground knife and a second split lock arranged on a rotating shaft of a main knife;
the first split lock comprises a special-shaped snap ring, a first shell, a lock tongue, a push spring and a lock tongue positioning sheet, the special-shaped snap ring is fixedly installed on a ground cutter rotating shaft, one end of the first shell is sleeved on the ground cutter rotating shaft, the special-shaped snap ring is arranged in the first shell, one end of the lock tongue is abutted against the surface of the special-shaped snap ring, the other end of the lock tongue is placed on the lock tongue positioning sheet, a push spring positioning shaft is arranged on the lock tongue close to one side of the lock tongue positioning sheet, one end of the push spring is abutted against the end surface of the first shell, and the other end of the push spring is abutted against the push spring;
the second split lock comprises a second shell, a cam, a switching spring and a spring support, the second shell is sleeved on the main cutter rotating shaft, the cam is fixedly installed in the second shell, one end of the switching spring abuts against the second shell, and the other end of the switching spring abuts against the spring support.
Further, first casing includes two casing pieces, and the casing piece sets up respectively in the both sides of abnormal shape snap ring, through rivet connection between two casing pieces.
Furthermore, the special-shaped clamping ring is provided with a right-angle notch for limiting the rotation of the special-shaped clamping ring.
Further, the second casing is U type casing, is equipped with the spacing axle of cam in the middle of the U type casing, is equipped with a breach on the cam, and the spacing axle block of cam is in breach department, restriction cam anticlockwise rotation.
Furthermore, a middle shaft is sleeved in the switching spring, a through hole is formed in the spring support, one end of the middle shaft is connected to the second shell, and the other end of the middle shaft penetrates through the through hole in the spring support.
Furthermore, the interlocking mechanism further comprises a mounting side plate, the ground cutter rotating shaft and the main cutter main shaft penetrate through the mounting side plate, and the lock tongue positioning piece and the spring support are mounted on the mounting side plate.
Further, interlocking device still includes ground sword protection device, and ground sword protection device includes spacing piece of ground sword and spacing boss, and the spacing piece of ground sword is installed in the ground sword pivot, and spacing boss is installed on the installation curb plate, and spacing boss and the spacing piece cooperation of ground sword restrict the turned angle of ground sword pivot.
The utility model discloses an useful part lies in:
the ground cutter rotating shaft and the main cutter rotating shaft are locked respectively through the cooperation of the first split lock and the second split lock. When the main knife is switched on, the main knife rotating shaft drives the second shell to rotate clockwise, the second shell drives the cam to rotate clockwise simultaneously, the radius of the contact surface of the cam and the spring bolt is gradually increased in the clockwise rotation process of the cam, the push spring on the spring bolt contracts, at the moment, the ground knife must be in a switching-off state, and if the cam is in a switching-on state, the spring bolt cannot be in place and enters the right-angle notch of the special-shaped clamping ring, so that the main knife cannot be switched on when the ground knife is switched on.
When the ground sword combined floodgate in-process, if the main sword was in combined floodgate state, then ground sword pivot clockwise rotation, the spring bolt front end can contradict at the great surface of cam radius, and the end can contradict in the rectangular notch department of heterotypic snap ring, can't continue to rotate, realizes preventing ground sword combined floodgate.
Through the cooperation of first components of a whole that can function independently lock and second components of a whole that can function independently lock, realize the interlocking of high-voltage load switch, have splendid mechanical strength, even violently operate, can guarantee the effective use of interlocking device.
Drawings
Fig. 1 is a schematic structural view of the high-voltage load switch and its interlocking mechanism of the present invention.
Fig. 2 is the structure schematic diagram of the high-voltage load switch interlocking mechanism of the present invention.
Fig. 3 is the structure schematic diagram of the high-voltage load switch interlocking mechanism limiting boss and the ground blade limiting piece of the utility model.
Fig. 4 is a schematic structural diagram of the high-voltage load switch interlocking mechanism of the present invention.
Fig. 5 is a schematic structural view of the high-voltage load switch interlocking mechanism of the present invention.
Fig. 6 is a schematic structural view of a snap ring in the high-voltage load switch interlocking mechanism of the present invention.
Reference numerals: the ground knife comprises a ground knife 1, a main knife 2, a ground knife rotating shaft 3, a main knife rotating shaft 4, a first split lock 5, a second split lock 6, a mounting side plate 7, a ground knife limiting sheet 8, a limiting boss 9, a special-shaped clamping ring 10, a shell sheet 11, a rivet 12, a push spring 13, a U-shaped shell 14, a cam 15, a switching spring 16, a lock tongue positioning sheet 17, a spring support 18, a middle shaft 19, a lock tongue 20 and a cam limiting shaft 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 6 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
The interlocking mechanism of the high-voltage load switch comprises an interlocking mechanism, wherein the interlocking mechanism comprises a first split lock 5 arranged on a rotating shaft 3 of a ground knife and a second split lock 6 arranged on a rotating shaft 4 of a main knife; the first split lock 5 and the second split lock 6 are both installed on the integral side edge of the high-voltage load switch, and when a worker operates the equipment, the operating handle of the first split lock is also arranged on the integral side edge of the high-voltage load switch, and the first split lock and the second split lock are slightly different from a domestic common front handle structure.
The first split lock 5 comprises a special-shaped snap ring 10, a first shell, a lock tongue, a push spring 13 and a lock tongue positioning sheet 17, wherein a pin hole is formed in the special-shaped snap ring 10, and a connecting pin penetrates through the special-shaped snap ring 10 and is inserted into the ground cutter rotating shaft 3, so that the special-shaped snap ring 10 is connected with the ground cutter rotating shaft 3. One end of a first shell is sleeved on the ground cutter rotating shaft 3, the special-shaped snap ring 10 is arranged in the first shell, one end of a lock tongue 20 is abutted to the surface of the special-shaped snap ring 10, the other end of the lock tongue is placed on a lock tongue positioning piece 17, a push spring 13 positioning shaft is arranged on the lock tongue close to one side of the lock tongue positioning piece 17, one end of the push spring 13 is abutted to the end surface of the first shell, and the other end of the push spring 13 is abutted to the push spring 13 positioning shaft to provide continuous thrust towards the direction of the second split lock 6 for the;
the second split lock 6 comprises a second shell, a cam 15, a switching spring 16 and a spring support 18, the second shell is sleeved on the main cutter rotating shaft 4, the cam 15 is fixedly installed in the second shell, one end of the switching spring 16 abuts against the second shell, the other end of the switching spring abuts against the spring support 18, a critical value exists in the force application direction of the switching spring 16 to the second split lock 6, and two sides of the critical value are respectively used for applying a closing acting force and an opening acting force.
The special-shaped clamping ring 10 is provided with a right-angle notch for limiting the rotation of the special-shaped clamping ring 10. As long as main sword 2 is in when closing a floodgate state, spring bolt one end just contradicts all the time in right angle breach department, and also has great area of contact between spring bolt and the snap ring, has better mechanical strength, can't operate earthing switch 1.
The second shell is a U-shaped shell 14, a cam limiting shaft 21 is arranged in the middle of the U-shaped shell 14, a notch is formed in the cam 15, and the cam limiting shaft 21 is clamped in the notch to limit the rotation of the cam 15.
It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, and that the embodiments are therefore to be considered in all respects as exemplary and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. A high-voltage load switch interlocking mechanism is characterized in that: the interlocking mechanism comprises a first split lock arranged on a rotating shaft of the ground cutter and a second split lock arranged on a rotating shaft of the main cutter;
the first split lock comprises a special-shaped snap ring, a first shell, a lock tongue, a push spring and a lock tongue positioning sheet, the special-shaped snap ring is fixedly installed on a ground cutter rotating shaft, one end of the first shell is sleeved on the ground cutter rotating shaft, the special-shaped snap ring is arranged in the first shell, one end of the lock tongue is abutted against the surface of the special-shaped snap ring, the other end of the lock tongue is placed on the lock tongue positioning sheet, a push spring positioning shaft is arranged on the lock tongue close to one side of the lock tongue positioning sheet, one end of the push spring is abutted against the end surface of the first shell, and the other end of the push spring is abutted against the push spring;
the second split lock comprises a second shell, a cam, a switching spring and a spring support, the second shell is sleeved on the main cutter rotating shaft, the cam is fixedly installed in the second shell, one end of the switching spring abuts against the second shell, and the other end of the switching spring abuts against the spring support.
2. The high voltage load switch interlock as recited in claim 1, wherein: the first shell comprises two shell pieces, the shell pieces are respectively arranged on two sides of the special-shaped clamping ring, and the two shell pieces are connected through rivets.
3. The high voltage load switch interlock as recited in claim 1, wherein: the special-shaped clamping ring is provided with a right-angle notch for limiting the rotation of the special-shaped clamping ring.
4. The high voltage load switch interlock as recited in claim 1, wherein: the second casing is U type casing, is equipped with the spacing axle of cam in the middle of the U type casing, is equipped with a breach on the cam, and the spacing axle block of cam is in breach department, restriction cam anticlockwise rotation.
5. The high voltage load switch interlock as recited in claim 1, wherein: a middle shaft is sleeved in the switching spring, a through hole is formed in the spring support, one end of the middle shaft is connected to the second shell, and the other end of the middle shaft penetrates through the through hole in the spring support.
6. The high voltage load switch interlock as recited in claim 1, wherein: the interlocking mechanism further comprises a mounting side plate, the ground knife rotating shaft and the main knife main shaft penetrate through the mounting side plate, and the lock tongue positioning piece and the spring support are mounted on the mounting side plate.
7. The high voltage load switch interlock as recited in claim 6, wherein: the interlocking mechanism further comprises a ground knife protection device, the ground knife protection device comprises a ground knife limiting piece and a limiting boss, the ground knife limiting piece is installed on the ground knife rotating shaft, the limiting boss is installed on the installation side plate, and the limiting boss and the ground knife limiting piece are matched to limit the rotating angle of the ground knife rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021055663.0U CN211957528U (en) | 2020-06-10 | 2020-06-10 | High-voltage load switch interlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021055663.0U CN211957528U (en) | 2020-06-10 | 2020-06-10 | High-voltage load switch interlocking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211957528U true CN211957528U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021055663.0U Active CN211957528U (en) | 2020-06-10 | 2020-06-10 | High-voltage load switch interlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211957528U (en) |
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2020
- 2020-06-10 CN CN202021055663.0U patent/CN211957528U/en active Active
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