CN210516586U - Load switch combined electrical apparatus - Google Patents
Load switch combined electrical apparatus Download PDFInfo
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- CN210516586U CN210516586U CN201921481946.9U CN201921481946U CN210516586U CN 210516586 U CN210516586 U CN 210516586U CN 201921481946 U CN201921481946 U CN 201921481946U CN 210516586 U CN210516586 U CN 210516586U
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Abstract
The utility model relates to a high tension switchgear field, in particular to load switch combined electrical apparatus, the utility model discloses a load switch combined electrical apparatus's operating device is provided with load switch operation hole pin and isolation ground connection operation hole pin, when load switch is in the combined floodgate, load switch operation axis effect shelters from isolation ground connection operation hole pin down, can not keep apart the ground connection operation, when keeping apart the separating brake ground combined floodgate, keep apart the epaxial isolation ground connection axle top of ground connection operation and push away the piece top and push away the transfer line, make load switch operation hole pin shelter from the load switch operation hole, load switch operating handle can not insert this moment, load switch can not be operated the combined floodgate. Through the combined action of the stop lever of the load switch operation hole and the stop lever of the isolation grounding operation hole, the isolation grounding operation shaft is interlocked with the load switch operation shaft, misoperation is avoided, and potential safety hazards are reduced.
Description
Technical Field
The utility model relates to a high tension switchgear field, in particular to load switch combined electrical apparatus.
Background
The load switch combined electrical apparatus comprising the isolating switch, the grounding switch and the vacuum load switch has higher breaking capacity, and the load switch combined electrical apparatus has simple and compact structure, and is convenient to assemble and maintain in later period. The Chinese patent with the publication number of CN208093429U and the publication date of 2018.11.13 discloses a circuit breaker, which is a load switch combined electrical apparatus, and comprises a frame, wherein the frame is also provided with an isolation unit, a grounding unit, a circuit breaker unit and an operating mechanism, wherein the grounding unit is a grounding switch, the isolation unit is an isolation switch, the circuit breaker unit is a circuit breaker, the grounding unit is linked with the isolation unit, in the actual use process, when the circuit breaker is in an opening state, an operating handle can be used for controlling an operating shaft of the operating mechanism, the operating shaft drives the grounding shaft to rotate, the grounding shaft drives the isolation shaft to rotate, the isolation shaft drives an isolation knife to act, so that grounding closing and isolation are realized, when the circuit breaker needs to be closed, the operating handle needs to be rotated in the opposite direction, and the operating shaft drives the grounding knife and the isolation knife to act through the grounding shaft and the isolation shaft respectively, the three-phase grounding switch-on and switch-off is realized, wherein the input shaft of the circuit breaker operating mechanism can realize the switch-on and switch-off of the circuit breaker through manual or electric operation, and the input shaft of the circuit breaker operating mechanism is a circuit breaker operating shaft. The circuit breaker is a load switch, and the load switch operating axis and the isolation grounding operating axis are independent of each other when the load switch combined electrical apparatus is manually operated in the prior art, so that misoperation is easy during actual use, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a load switch combined electrical apparatus for solve the easy maloperation that the load switch operating axis and the isolation operating axis mutual independence caused among the present load switch combined electrical apparatus, the big problem of potential safety hazard.
In order to achieve the above object, the utility model discloses load switch combined electrical apparatus's technical scheme does:
the load switch combined electrical apparatus includes:
a load switch: comprises a load switch shaft driving the load switch to be switched on and off,
an isolating switch: comprises an isolation knife and an isolation shaft driving the isolation knife to act;
a grounding switch: comprises a grounding knife and a grounding shaft for driving the grounding knife to act;
an operating mechanism: the isolation grounding operation shaft is in transmission connection with the grounding shaft and the isolation shaft so as to drive the isolation shaft and the grounding shaft to act; the load switch operating shaft is in transmission connection with the load switch shaft so as to drive the load switch shaft to act;
the operating mechanism further comprises a load switch operating hole stop lever hinged on the operating panel, the load switch operating hole stop lever is in transmission connection with a transmission rod which is arranged on the operating panel in a guiding and sliding mode, and an isolation grounding shaft pushing piece used for pushing the transmission rod to enable the load switch operating hole stop lever to shield the load switch operating hole when the isolation brake separating and grounding switch closing are conducted is fixedly arranged on the isolation grounding operating shaft;
the operating mechanism comprises an elastic piece which is used for acting on a load switch operating hole blocking rod to enable the load switch operating hole blocking rod to release the blocking of the load switch operating hole;
the operating mechanism also comprises an isolation grounding operating hole stop lever which is movably assembled on the operating panel and driven by the operating shaft of the load switch, and shields the isolation grounding operating hole when the load switch is switched on.
The utility model has the advantages that: the utility model discloses a load switch combined electrical apparatus's operating device is provided with load switch operation hole pin and isolation ground connection operation hole pin, when load switch is in the combined floodgate, load switch operation shaft effect shelters from isolation ground connection operation hole pin down, can not keep apart the ground connection operation, when keeping apart the combined floodgate ground connection, keep apart the epaxial isolation ground connection axle top of ground connection operation and push away a top and push away the transfer line, make load switch operation hole pin shelter from the load switch operation hole, load switch operating handle can not insert this moment, load switch can not be operated the combined floodgate. Through the combined action of the stop lever of the load switch operation hole and the stop lever of the isolation grounding operation hole, the isolation grounding operation shaft is interlocked with the load switch operation shaft, misoperation is avoided, and potential safety hazards are reduced.
Furthermore, in order to ensure stability, the isolation grounding operation hole stop lever is arranged on the operation panel in a guiding and sliding mode, the isolation grounding operation hole stop lever is in transmission fit with the load switch state indicating shaft, and the load switch operation shaft drives the load switch state indicating shaft to enable the isolation grounding operation hole stop lever to act. The load switch state indicating shaft has a small rotating angle, and is matched with the blocking rod of the isolation grounding operation hole through the load switch state indicating shaft, so that the assembly difficulty is reduced, and the stability is improved.
Furthermore, in order to simplify the assembly relation, a crank arm is arranged on the load switch state indicating shaft, a transmission pin parallel to the load switch state indicating shaft is arranged on the crank arm, and a transmission matching long hole for the transmission pin to insert is formed in the isolation grounding operation hole stop lever. The stop lever of the grounding operation hole is driven to be isolated through the crank arm and the transmission pin, so that the structure is simple, and the installation is convenient.
Furthermore, for the convenience of installation, operating panel is last to be equipped with two at least guide pins along keeping apart ground connection operation hole pin sliding direction interval arrangement, keep apart ground connection operation hole pin and be equipped with the pin direction slot hole with guide pin complex on the pin. The guide pin is simple in structure and convenient to install on the operation panel.
Furthermore, in order to make the structure more compact, the transmission rod is provided with a transmission rod guide long hole matched with the guide pin, the transmission rod is matched with the guide pin through the transmission rod guide long hole and is arranged on the operation panel in a guide sliding mode, and the part of the isolation grounding operation hole, on the stop lever, of the stop lever guide long hole and the part of the transmission rod, on the transmission rod, of the guide long hole are partially overlapped along the extension direction of the guide pin. The parts stacked together can reduce the occupied space, and the shared guide pin simplifies the matching structure and makes the structure more compact.
Further, the transfer line sets up the border at operating panel, keeps apart to connect the operating hole pin and includes long pole section, the short pole section parallel with the short pole section, connects the linkage segment of long pole section and short pole section, and pin direction slot hole sets up on long pole section, and the short pole section is used for sheltering from the isolation ground connection operating hole, and long pole section and linkage segment all set up the border at operating panel. The setting does not occupy too much space and can not change original structure at the border, easy to assemble.
Furthermore, in order to facilitate installation, the operating panel is provided with at least two guide pins which are arranged at intervals along the sliding direction of the transmission rod, and the transmission rod is provided with a transmission rod guide long hole matched with the guide pins. The guide pin is simple in structure and convenient to install on the operation panel.
Further, in order to simplify the structure, the elastic member is a spring disposed on the transmission rod and one of the guide pins, and the spring is connected to the guide pin without adding a mounting structure on the operation panel.
Furthermore, the isolation grounding pushing piece comprises a fixed disc fixed on the isolation grounding operation shaft and a pushing plate fixed on the fixed disc, a transmission rod pin parallel to the isolation grounding operation shaft is arranged on the transmission rod, and the isolation grounding pushing piece pushes the transmission rod pin through the pushing plate to drive the transmission rod to move. The push plate is fixed through the fixed disc, so that the push plate is convenient to mount, and the fixed disc is also convenient to fix with the isolation grounding operation shaft.
Further, a shaft sleeve is fixed on the isolation grounding operation shaft, and a jack or a slot for inserting the isolation grounding operation hole is formed in the shaft sleeve when the load switch is switched on; and/or a shaft sleeve is fixed on the load switch operating shaft, and the shaft sleeve is provided with a jack or a slot for inserting a stop lever of the load switch operating hole during isolation switching-off, grounding and switching-on. The jacks or the slots can be matched with the corresponding stop levers to limit the rotation of the operating shaft, so that the operating mechanism is more stable.
Drawings
Fig. 1 is a front view of a load switch assembly according to an embodiment of the present invention;
fig. 2 is a rear view of the load switch assembly in an embodiment of the load switch assembly of the present invention;
FIG. 3 is a schematic structural diagram of an operating mechanism in an embodiment of the combined electrical appliance of the load switch of the present invention;
fig. 4 is a schematic structural view of another view of the operating mechanism in the embodiment of the combined electrical appliance of the load switch of the present invention;
FIG. 5 is a partially exploded view of an exemplary embodiment of an electrical appliance incorporating the load switch of the present invention;
FIG. 6 is a structural view of the inner side of the operation panel of the operation mechanism in the embodiment of the combined electric appliance of the load switch of the present invention;
fig. 7 is a structural view of another view angle inside the operation panel of the operation mechanism in the embodiment of the combined electric appliance of the load switch of the present invention;
fig. 8 is a schematic structural view of the load switch operation hole stop lever, the isolation grounding operation hole stop lever and the transmission rod of the operation mechanism in the embodiment of the load switch combined electrical appliance of the present invention;
fig. 9 is a schematic structural diagram of another view angle of the load switch operation hole stop lever, the isolation grounding operation hole stop lever, and the transmission lever of the operation mechanism in the embodiment of the load switch combined electrical appliance of the present invention (for clarity, in the figure, not each stop lever is not in an operating state, and neither stop lever shields the corresponding operation hole);
in the figure: 1-a frame; 2-a load switch; 21. an insulating pull rod; 22. a load switch shaft; 3-an isolating switch; 31-an isolation knife; 32-spaced axis; 4-a grounding switch; 41-grounding knife; 42-a ground shaft; 43-an isolated ground drive link; 5-an operating mechanism; 51-an operation panel; 511-isolated ground access hole; 512-load switch operation hole; 513-guide pins; 520-isolated grounded operating shaft; 521-an isolated grounding bushing; 5211-slot; 522-fixed disk; 523-top push plate; 530-load switch operating shaft; 531-load switch shaft sleeve; 5311-a slot; 54-load switch status indication axis; 541-crank arm; 542-drive pin; 55-load switch operation hole stop lever; 56-transmission rod; 561-drive link guide slot; 562-bending a plate; 5621-bent plate holes; 563-drive bar pin; 57-isolating grounding operation hole stop lever; 571-the stop lever guide slot hole; 572-Transmission mating slot; 573-long rod segment; 574-short pole section; 575-a connecting segment; 576-L-shaped bending plate.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a load switch combined electrical apparatus's concrete embodiment, as shown in fig. 1 and fig. 2, load switch combined electrical apparatus includes frame 1, be equipped with load switch 2 in frame 1, isolator 3 and earthing switch 4, load switch 2 includes vacuum interrupter, be in vacuum interrupter's the end contact and the quiet end contact of moving, it is connected with insulating pull rod 21 to move the end contact, insulating pull rod 21 is driven by load switch axle 22, load switch axle 22 drives load switch 2's the end contact of moving and quiet end contact or separation, realize load switch 2's divide-shut brake. Isolator 3 includes isolation sword 31 and the isolation axle 32 that drives isolation sword 31 action, and earthing switch 4 includes earthing sword 41 and the earthing axle 42 that drives earthing sword 41 action, and wherein isolator 3 and earthing switch 4 linkage, the rear end of isolation axle 32 and earthing axle 42 all is provided with the turning arm, are connected with between two turning arms and keep apart ground transmission pole 43, and specific linkage mode is prior art, and here is no longer repeated. The rack 1 is further provided with an operating mechanism 5 for operating the load switch 2, the disconnecting switch 3 and the grounding switch 4, as shown in fig. 3 to 5, the operating mechanism 5 is arranged on the front side of the rack 1, the operating mechanism 5 comprises an operating panel 51, an isolating grounding operating shaft 520, a load switch operating shaft 530 and a load switch state indicating shaft 54 which are arranged on the front side, and an isolating grounding operating hole 511 and a load switch operating hole 512 are arranged on the operating panel 51. The load switch operating shaft 530 and the load switch state indicating shaft 54 are both provided with transmission crank arms, so that the load switch state indicating shaft 54 displays the state of the load switch 2 along with the operation of the load switch operating shaft 530. The disconnecting switch shaft 32 is in transmission connection with the grounding shaft 42, and the load switch operation shaft 530 is in transmission connection with the load switch shaft 22. Load switch 2, earthing switch 4 and isolator 3 are driven by operating device 5, and operating device 5 can electric operation, also can manually operation, and above-mentioned load switch 2, earthing switch 4, isolator 3, operating device 5's operating transmission structure is prior art, and the no detailed description is again described here, introduces below emphatically the utility model discloses compare prior art's improvement structure. The utility model discloses on operating device 5's among the prior art basis, increase manual operation interlocking function.
As shown in fig. 6 to 9, a load switch operation hole blocking lever 55 is hinged on the operation panel 51, one end of the load switch operation hole blocking lever 55 is a shielding end for shielding the load switch operation hole 512, the other end is hinged with a transmission rod 56, the transmission rod 56 is slidably disposed on the operation panel 51 in a vertically guiding manner, two guide pins 513 arranged at an upper and lower interval are fixed on the operation panel 51, two transmission rod guide long holes 561 corresponding to the guide pins 513 one by one are arranged on the transmission rod 56, and the transmission rod guide long holes 561 are slidably engaged with the guide pins 513 in a guiding manner to guide the transmission rod 56. The guide pin 513 in this embodiment is welded and fixed to the operation panel 51.
In order to use the swing of the load switch operation hole stopper 55, the hole of the transmission lever 56, which is hinged to the load switch operation hole stopper 55, is a long waist hole, and the long waist hole can accommodate the displacement of the end of the load switch operation hole stopper 55, which is connected to the transmission lever 56, in the direction perpendicular to the moving direction of the transmission lever 56 in the swing process of the load switch operation hole stopper 55.
The load switch operation shaft 530 is fixed with a load switch shaft sleeve 531, the rear end of the load switch shaft sleeve 531 is fixed on the load switch operation shaft 530, the front end and the load switch operation shaft 530 form an annular space for inserting the operation handle, the load switch shaft sleeve 531 is provided with a slot 5311, the bottom of the slot 5311 is arc-shaped, an opening at one end of the load switch shaft sleeve 531 is opposite to the load switch operation hole 512, and after the load switch operation hole stop lever 55 is inserted into the slot 5311, the load switch operation hole 512 can be shielded, the load switch operation handle is limited from being inserted into the annular space, and the load switch shaft sleeve 531 and the load switch operation shaft 530 are limited from rotating.
The transmission rod 56 is provided with a bent plate 562 which is bent backwards, the bent plate 562 is provided with a bent plate hole 5621, a spring (not shown in the figure) which applies elasticity to the transmission rod 56 is arranged between the bent plate 562 and one guide pin 513, one end of the spring is hung in the bent plate hole 5621, and the other end of the spring is hung in an upper hole of the guide pin 513. The spring is used for exerting the downward action to the transmission rod 56, the transmission rod 56 is hinged with one end of the load switch operation hole stop lever 55, and under the action of the spring, the load switch operation hole stop lever 55 releases the shielding of the load switch operation hole 512, and at the moment, the load switch operation shaft 530 can be manually operated.
An isolation grounding shaft sleeve 521 is fixed on the isolation grounding operating shaft 520, a slot 5211 is arranged on the isolation grounding shaft sleeve 521, and the slot 5211 is a straight slot. The rear end of the isolated ground bushing 521 is fixed to the isolated ground operating shaft 520, and the front end forms an annular space with the isolated ground operating shaft 520 for the operating handle to be inserted.
The operating mechanism 5 includes an isolation ground operating hole stopper 57 slidably fitted on the operating panel 51 in an up-and-down guiding manner, as shown in fig. 6 to 9, the isolation ground operating hole stopper 57 is a J-shaped rod, two stopper guide long holes 571 are provided on the isolation ground operating hole stopper 57, two guide pins 513 pass through the stopper guide long holes 571 respectively to guide the isolation ground operating hole stopper 57, the isolation ground operating shaft 520 stopper is located at the front side of the load switch operating hole stopper 55, and a portion of the isolation ground operating hole stopper 57 on which the stopper guide long holes 571 are provided and a portion of the transmission lever 56 on which the transmission lever guide long holes 561 are provided are overlapped along the extending direction portion of the guide pins 513.
The load switch state indicating shaft 54 is rotated by the load switch operating shaft 530, and the structure of this part is prior art and will not be described in detail. In this embodiment, the isolation grounding operation shaft 520 is in transmission engagement with the load switch state indication shaft 54, and the load switch operation shaft 530 drives the load switch state indication shaft 54 to operate the isolation grounding operation hole stopper 57. As shown in the figure, a crank arm 541 is fixed on the load switch state indication shaft 54, a transmission pin 542 is arranged on the crank arm 541, a transmission matching long hole 572 matched with the transmission pin 542 is arranged at the top of the isolation grounding operation hole blocking rod 57, the transmission matching long hole 572 extends along the direction perpendicular to the sliding direction of the isolation grounding operation hole blocking rod 57, the transmission pin 542 is parallel to the load switch state indication shaft 54 and is inserted into the transmission matching long hole 572, the load switch state indication shaft 54 drives the crank arm 541 to swing when rotating, and the transmission pin 542 on the crank arm 541 can drive the isolation grounding operation hole blocking rod 57 to move up and down.
The isolated grounding operation hole blocking rod 57 comprises a long rod section 573, a short rod section 574 parallel to the long rod section 573, and a connecting section 575 for connecting the long rod section 573 with the short rod end, wherein the short rod section 574 is used for being inserted into the insertion slot 5211 on the isolated grounding shaft sleeve and extending into the isolated grounding shaft sleeve 521 when the load switch 2 is in a closing state, shielding the isolated grounding operation hole 511 and limiting the insertion of an operation handle. The long bar guide hole 571 is disposed on the long bar section 573, the top of the long bar section 573 is provided with an L-shaped bending plate 576 for bypassing the transmission bar 56, the L-shaped bending plate 576 comprises a support section extending backward from the top of the long bar section 573 and a mating section fixed at the rear end of the support section perpendicular to the support section, and the long transmission mating hole 572 is disposed on the mating section of the L-shaped bending plate 576.
Still be fixed with fixed disk 522 on the isolation ground axle sleeve 521, be fixed with push plate 523 on the fixed disk 522, be fixed with drive rod pin 563 on the transfer line 56, push plate 523 drives transfer line 56 rebound through pushing away drive rod pin 563, wherein fixed disk 522 and push plate 523 constitute isolation ground and push away the piece, in this embodiment, the side of one side of pushing away the board 523 with drive rod pin 563 complex is the indent cambered surface, when operation isolation ground axle ground combined floodgate, push plate 523 can push away drive rod pin 563 upward movement when rotating, the indent cambered surface can make drive rod pin 563 be in more steadily at push plate 523 inboard. In other embodiments, the isolated grounding pushing member may also be a pushing plate directly fixed on the isolated grounding operating shaft, the pushing plate may directly push the transmission rod, at this time, the pushing plate and the transmission rod need to be on the same plane, and the pushing plate pushes the transmission rod upward through the lower end of the pushing transmission rod.
The utility model discloses a load switch combined electrical apparatus is when load switch 2 is in combined floodgate state, and isolator 3 is in combined floodgate state, and earthing switch 4 is in the separating brake state, keeps apart the separation of push pedal 523 and drive rod round pin 563 on the earthing operation axle 520, and transfer line 56 makes load switch operation hole fender pole leave slot 5311 on the load switch axle sleeve 531 under the effect of spring, and load switch operation hole 512 opens this moment, can operate load switch axle 22. At this time, the isolation grounding operation hole blocking rod 57 is inserted into the insertion groove 5211 of the isolation grounding bushing 521 and blocks the isolation grounding operation hole 511, and at this time, the isolation grounding operation handle cannot be inserted into the isolation grounding operation hole 511 to operate the isolation grounding operation shaft 520.
When the load switch 2 is required to be opened, a load switch operating handle is inserted into the load switch operating hole 512, the load switch operating handle is in rotation stopping fit with the load switch operating shaft 530, the load switch operating handle is rotated, the load switch operating shaft 530 rotates until the load switch 2 is opened, and in the rotating process of the load switch operating shaft 530, the load switch state indicating shaft 54 is driven by the load switch operating shaft 530, the load switch state indicating shaft 54 drives the isolating and grounding operating hole stop lever 57 to move downwards, when the load switch 2 is in the opening state, the short rod segment 574 of the isolation grounding operation hole blocking rod 57 slides out of the slot 5211 on the isolation grounding shaft sleeve 521, the isolation grounding operation hole 511 is separated from the isolation grounding shaft sleeve 521, the rotation of the isolation grounding shaft sleeve 521 is not limited, the isolation grounding operation hole 511 is not shielded, and an isolation grounding operation handle can be inserted to operate the isolation grounding operation shaft 520 at this time.
After the load switch 2 is switched off, the isolating grounding operation handle is inserted into the isolating grounding operation hole 511, the isolating grounding operation handle is rotated to switch off the isolating switch 3, the grounding switch 4 is switched on, in the rotating process of the isolating grounding operation shaft 520, the pushing plate 523 on the isolating grounding operation shaft 520 rotates and pushes the transmission rod pin 563 to enable the transmission rod 56 to move upwards, the transmission rod 56 drives the load switch operation hole stop lever 55 to swing, the load switch operation hole stop lever 55 is inserted into the insertion groove 5311 on the load switch shaft sleeve 531 to shield the load switch operation hole 512 and limit the load switch shaft sleeve 531 to rotate, and the load switch 2 operation handle cannot be inserted into the load switch operation hole 512.
Before the load switch 2 needs to be switched on, the isolation grounding operation shaft 520 needs to be operated to switch on the isolation switch 3 and switch off the grounding switch 4. The isolation grounding operation handle is inserted into the isolation grounding operation hole 511, the isolation grounding operation handle is in rotation stopping fit with the isolation grounding operation shaft 520 to drive the isolation grounding operation shaft 520 to rotate in the direction of enabling the isolation switch 3 to be switched off, the isolation switch 3 is switched on, after the grounding switch 4 is switched off, the pushing plate 523 is separated from the transmission rod pin 563, the spring connected with the transmission rod 56 pulls the transmission rod 56 to move downwards, the transmission rod 56 drives the shielding end of the load switch operation hole stop lever 55 to leave the load switch shaft sleeve 531, shielding of the load switch operation hole 512 is removed, and the load switch operation handle can be inserted into the load switch operation hole 512 to perform switching-on operation on the load switch 2.
In other embodiments, the number of guide pins may be adjusted as desired, but at least two should be provided; based on the idea of arranging the guide structure on the operation panel, the operation panel can also be provided with guide blocks, for example, the guide blocks are arranged to be in guide sliding fit with the guide long holes of the transmission rod, and only one guide block can be arranged; the operation panel can also be provided with a guide long groove, the transmission rod is fixed with a guide pin which is in guide sliding fit with the guide long groove, and at the moment, the blocking rod of the isolated grounding operation hole can be provided with a guide long hole or can avoid the guide pin.
In other embodiments, the isolation ground operation hole blocking rod may also be in transmission fit with the load switch operation shaft, for example, a crank arm is arranged on the composite switch transmission shaft, but at this time, the position of the isolation ground operation hole blocking rod needs to be adaptively adjusted.
In other embodiments, the isolation grounding operation hole blocking rod can also adopt a swing form similar to that of the load switch operation hole blocking rod, for example, the isolation grounding operation hole blocking rod is also connected with the transmission rod, the two transmission rods are overlapped front and back, the isolation grounding operation hole blocking rod is hinged on the operation panel at the moment, and the isolation grounding shaft sleeve is required to be provided with a notch groove with an arc-shaped groove bottom.
In other embodiments, the load switch state indicating shaft can also be in transmission connection with the blocking rod of the isolation grounding operation hole through a link mechanism; certainly, the crank arm can also be in pushing fit with the blocking rod of the isolation grounding operation hole, and at the moment, a spring needs to be arranged on the blocking rod of the isolation grounding operation hole to enable the blocking rod of the isolation grounding operation hole to reset.
In other embodiments, the transmission rod may not share a guide pin with the isolation grounding operation hole blocking rod, and the transmission rod may be disposed on the left or right side of the isolation grounding operation, in which case a guide pin corresponding to the transmission rod and the isolation grounding operation hole blocking rod, respectively, is required.
In other embodiments, the position of the transmission rod may also be set in the middle of the operation panel, but at this time, the occupied space of the operation panel needs to be increased, at this time, the isolation grounding operation hole blocking rod may also be a straight rod, and an insertion slot for inserting the isolation grounding operation hole blocking rod needs to be disposed on the upper side of the isolation grounding shaft sleeve.
In other embodiments, the isolation grounding operating shaft and the load switch operating shaft may not be provided with a shaft sleeve, at this time, the isolation grounding blocking rod limits the insertion of the isolation grounding operating handle by shielding the isolation grounding operating hole, and the load switch operating hole blocking rod limits the insertion of the load switch operating handle by shielding the load switch operating hole. In other embodiments, the isolation grounding shaft sleeve and the load switch shaft sleeve can also be provided with jacks for inserting corresponding stop levers.
Claims (10)
1. A load switch combination comprising:
a load switch: comprises a load switch shaft driving the load switch to be switched on and off,
an isolating switch: comprises an isolation knife and an isolation shaft driving the isolation knife to act;
a grounding switch: comprises a grounding knife and a grounding shaft for driving the grounding knife to act;
an operating mechanism: the isolation grounding operation shaft is in transmission connection with the grounding shaft and the isolation shaft so as to drive the isolation shaft and the grounding shaft to act; the load switch operating shaft is in transmission connection with the load switch shaft so as to drive the load switch shaft to act;
the operating mechanism is characterized by further comprising a load switch operating hole stop lever hinged on the operating panel, the load switch operating hole stop lever is in transmission connection with a transmission rod which is arranged on the operating panel in a guiding and sliding mode, and an isolation grounding shaft pushing piece used for pushing the transmission rod to enable the load switch operating hole stop lever to shield the load switch operating hole when the isolation brake-separating and grounding switch-on are fixedly arranged on the isolation grounding operating shaft;
the operating mechanism comprises an elastic piece which is used for acting on a load switch operating hole blocking rod to enable the load switch operating hole blocking rod to release the blocking of the load switch operating hole;
the operating mechanism also comprises an isolation grounding operating hole stop lever which is movably assembled on the operating panel and driven by the operating shaft of the load switch, and shields the isolation grounding operating hole under the action of the operating shaft of the load switch when the load switch is switched on.
2. The load switch assembly according to claim 1, wherein the isolation grounding operation hole blocking lever is slidably disposed on the operation panel in a guiding manner, the isolation grounding operation hole blocking lever is in transmission fit with the load switch state indicating shaft, and the load switch operation shaft drives the load switch state indicating shaft to operate the isolation grounding operation hole blocking lever.
3. The load switch combined electrical appliance according to claim 2, wherein a crank arm is provided on the load switch state indicating shaft, a transmission pin parallel to the load switch state indicating shaft is provided on the crank arm, and a transmission matching slot hole into which the transmission pin is inserted is provided on the isolation grounding operation hole stop lever.
4. The load switch combination electrical appliance according to claim 2, wherein the operation panel is provided with at least two guide pins arranged at intervals along the sliding direction of the blocking rod of the isolated grounding operation hole, and the blocking rod of the isolated grounding operation hole is provided with a blocking rod guide long hole matched with the guide pins.
5. The load switch composite apparatus according to claim 4, wherein the transmission lever is provided with a transmission lever guide long hole engaged with the guide pin, the transmission lever is slidably disposed on the operation panel through the transmission lever guide long hole and the guide pin engaged with each other, and a portion of the isolation ground operation hole where the transmission lever guide long hole is provided and a portion of the transmission lever where the transmission lever guide long hole is provided are partially overlapped in an extending direction of the guide pin.
6. The load switch composite apparatus according to claim 5, wherein the transmission rod is disposed at an edge of the operation panel, the isolation connection operation hole blocking rod comprises a long rod section, a short rod section parallel to the short rod section, and a connecting section connecting the long rod section and the short rod section, the blocking rod guide long hole is disposed on the long rod section, the short rod section is used for shielding the isolation grounding operation hole, and both the long rod section and the connecting section are disposed at the edge of the operation panel.
7. A load switch combined electrical appliance according to any one of claims 1 to 4, wherein the operation panel is provided with at least two guide pins arranged at intervals along the sliding direction of the transmission rod, and the transmission rod is provided with a transmission rod guide slot hole matched with the guide pins.
8. A load switch assembly according to claim 7, wherein said resilient member is a spring disposed on the actuator rod and one of the guide pins.
9. The load switch combined electrical appliance according to any one of claims 1 to 6, wherein the isolated grounding pushing member comprises a fixed disk fixed on the isolated grounding operating shaft and a pushing plate fixed on the fixed disk, the transmission rod is provided with a transmission rod pin parallel to the isolated grounding operating shaft, and the isolated grounding pushing member pushes the transmission rod pin to drive the transmission rod to move through the pushing plate.
10. The load switch combined electrical appliance according to any one of claims 1 to 6, wherein a shaft sleeve is fixed on the isolated grounding operation shaft, and the shaft sleeve is provided with a jack or a slot for inserting the isolated grounding operation hole when the load switch is switched on; and/or a shaft sleeve is fixed on the load switch operating shaft, and the shaft sleeve is provided with a jack or a slot for inserting a stop lever of the load switch operating hole during isolation switching-off, grounding and switching-on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481946.9U CN210516586U (en) | 2019-09-06 | 2019-09-06 | Load switch combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481946.9U CN210516586U (en) | 2019-09-06 | 2019-09-06 | Load switch combined electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210516586U true CN210516586U (en) | 2020-05-12 |
Family
ID=70568710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921481946.9U Active CN210516586U (en) | 2019-09-06 | 2019-09-06 | Load switch combined electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210516586U (en) |
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2019
- 2019-09-06 CN CN201921481946.9U patent/CN210516586U/en active Active
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