CN213546188U

CN213546188U - Three-station operating mechanism

Info

Publication number: CN213546188U
Application number: CN202022360419.1U
Authority: CN
Inventors: 彭康寿; 陈美兰; 陈伟; 伍梓良
Original assignee: Kennedy Power Technology Co ltd Of Shenzhen City
Current assignee: Kennedy Power Technology Co ltd Of Shenzhen City
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-25
Anticipated expiration: 2030-10-21

Abstract

The utility model relates to an electrical switch technical field discloses a three station operating device, can realize the operation of three station isolator of drive, and simple structure, and is easy and simple to handle. The utility model discloses a mounting bracket, isolation operation axle, ground connection operation axle, first fixing base, first uide bushing, first guide bar, first spring, second fixing base, second uide bushing, second guide bar, second spring, first turning arm and second turning arm. The utility model discloses when keeping apart divide-shut brake or ground connection divide-shut brake, can drive isolation operation axle or ground connection operation axle and rotate to drive the guide bar and rotate, cooperation fixing base and uide bushing, in order to compress the energy storage to the spring respectively, then can release the ability automatically after the dead point is crossed to the spring, and then drive isolation operation axle or ground connection operation axle and continue to rotate, and drive triplex position isolation earthing switch respectively through first, second turning arm in order to realize keeping apart divide-shut brake or ground connection divide-shut brake, the utility model discloses simple structure has reduced the volume and has reduced the cost.

Description

Three-station operating mechanism

Technical Field

The utility model relates to an electrical switch technical field, especially a three-station operating device.

Background

The three-station isolating switch integrates the functions of the isolating switch and the grounding switch into a whole to realize three stations of connection, isolation and grounding. Because the three-station isolation grounding switch needs to move in two directions, the three-station isolation grounding switch needs to be matched with an operating mechanism to be driven so as to realize the switching of the positions of the three stations. However, the structure of the existing operating mechanism is complex, so that the production cost is too high, the operation of the operating mechanism is also complex, the operation of switching three station positions by workers is difficult, the whole size of the operating mechanism is too large, the size of the solid insulation switch cabinet is large, the occupied space is large, and the solid insulation switch cabinet cannot be transferred easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a three station operating device can realize the operation of three station isolator of drive, and simple structure, and is easy and simple to handle.

According to the embodiment of the utility model, the three-station operating mechanism comprises a mounting frame, an isolation operating shaft, a grounding operating shaft, a first fixing seat, a first guide sleeve, a first guide rod, a first spring, a second fixing seat, a second guide sleeve, a second guide rod, a second spring, a first crank arm and a second crank arm, wherein the isolation operating shaft is transversely arranged on the mounting frame, and two ends of the isolation operating shaft are respectively connected with the mounting frame in a rotating manner; the grounding operation shaft is transversely arranged on the mounting frame and is positioned below the isolation operation shaft, and two ends of the grounding operation shaft are respectively in rotary connection with the mounting frame; the first fixed seat is arranged on the mounting frame and is positioned at the rear lower part of the isolation operation shaft; the first end of the first guide sleeve is rotatably connected with the first fixed seat, and the second end of the first guide sleeve is provided with a first guide groove extending to the first end of the first guide sleeve; the first end of the first guide rod is inserted into the first guide groove, the first guide rod can slide in the first guide groove, the second end of the first guide rod is rotatably connected with the isolation operation shaft, and the second end of the first guide rod is provided with a first gasket; the first spring is sleeved outside the first guide sleeve, and one end of the first spring is abutted to the first gasket; the second fixed seat is arranged on the mounting frame and is positioned above and behind the grounding operation shaft; the first end of the second guide sleeve is rotatably connected with the second fixed seat, and the second end of the second guide sleeve is provided with a second guide groove extending to the first end of the second guide sleeve; the first end of the second guide rod is inserted into the second guide groove, the second guide rod can slide in the second guide groove, the second end of the second guide rod is rotatably connected with the grounding operation shaft, and the second end of the second guide rod is provided with a second gasket; the second spring is sleeved outside the second guide sleeve, and one end of the second spring is abutted to the second gasket; the first end of the first crank arm is fixed on the isolation operation shaft, and the second end of the first crank arm is in transmission connection with the three-station isolation grounding switch; the first end of the second crank arm is fixed on the grounding operation shaft, and the second end of the second crank arm is in transmission connection with the three-station isolation grounding switch; one end of the same side of the isolation operation shaft and the grounding operation shaft extends to the outside of the mounting rack respectively.

According to the utility model discloses three station operating device have following beneficial effect at least: when needs keep apart divide-shut brake or ground connection divide-shut brake, can drive isolation operation axle or ground connection operation axle and rotate, in order to drive first guide bar, the second guide bar rotates, first fixing base of cooperation and first uide bushing or second fixing base and second uide bushing, in order to compress the energy storage to first spring or second spring respectively, then can automatic release energy after dead point is crossed to first spring or second spring, and then drive isolation operation axle or ground connection operation axle and continue to rotate, and through first turning arm and second turning arm, drive three stations respectively and keep apart earthing switch and realize keeping apart divide-shut brake or ground connection divide-shut brake, the utility model discloses simple structure, when satisfying isolation divide-shut brake or ground connection divide-shut brake operation, has improved the speed and the dynamics of combined floodgate or separating brake, has also reduced holistic volume simultaneously and has reduced manufacturing cost.

According to some embodiments of the present invention, the device further comprises a first blocking portion, a second blocking portion, two first limiting portions and two second limiting portions, wherein the first blocking portion is disposed on the isolation operation shaft and rotates along with the rotation of the isolation operation shaft; the two first limiting parts are fixed on the mounting rack and distributed in a plane where the first blocking parts rotate; the second blocking part is arranged on the grounding operation shaft and rotates along with the rotation of the grounding operation shaft; the two second limiting parts are fixed on the mounting rack and distributed in a plane where the second blocking parts rotate; when the isolation operation shaft or the grounding operation shaft rotates, the first blocking part moves back and forth between the two first limiting parts, and the second blocking part moves back and forth between the two second limiting parts so as to limit the rotating angle of the isolation operation shaft or the grounding operation shaft.

According to some embodiments of the utility model, two first spacing portion with be provided with first buffer respectively on the side of first fender portion butt, two spacing portion of second with be provided with the second buffer respectively on the side of second fender portion butt.

According to some embodiments of the invention, the first buffer and the second buffer are rubber pads or disc springs.

According to the utility model discloses a some embodiments, first fixing base includes the first connecting plate of two relative settings, two the first end of first connecting plate is fixed respectively on the mounting bracket, the first end of first uide bushing is provided with first round pin axle, just the both ends of first round pin axle are respectively with two the second end of first connecting plate is rotated and is connected.

According to the utility model discloses a some embodiments, the second fixing base includes the second connecting plate of two relative settings, two the first end of second connecting plate is fixed respectively on the mounting bracket, the first end of second uide bushing is provided with second round pin axle, just the both ends of second round pin axle are respectively with two the second end of second connecting plate is rotated and is connected.

According to the utility model discloses a some embodiments, keep apart the third connecting plate that is provided with two relative settings on the operating axis, the second end of first guide bar still is equipped with third round pin axle, the both ends of third round pin axle respectively with two the second end of third connecting plate is rotated and is connected.

According to the utility model discloses a some embodiments, be provided with the fourth connecting plate of two relative settings on the ground connection operation axis, the second end of second guide bar still is equipped with fourth round pin axle, the both ends of fourth round pin axle respectively with two the second end of fourth connecting plate is rotated and is connected.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a three-position operating mechanism according to an embodiment of the present invention;

fig. 2 is a schematic connection diagram of the first guide sleeve, the first guide rod and the first spring shown in fig. 1;

fig. 3 is a schematic view of an application state of the three-station operating mechanism shown in fig. 1 after being connected with a solid-sealed pole;

fig. 4 is a schematic view of the internal structure of the embedded pole shown in fig. 3;

FIG. 5 is a schematic view of the application state of FIG. 3 with the fixture hidden;

fig. 6 is a partially enlarged schematic view of a shown in fig. 5.

Reference numerals: the mounting bracket 100, the isolating operation shaft 200, the grounding operation shaft 300, the first fixing seat 400, the first guide sleeve 510, the first guide groove 511, the first guide rod 520, the first gasket 521, the first spring 530, the second fixing seat 600, the second guide sleeve 710, the second guide rod 720, the second gasket 721, the second spring 730, the first crank arm 800, the second crank arm 900, the first stopper 1000, the first stopper 1100, the first buffer 1110, the second stopper 1200, the second stopper 1300, the second buffer 1310, the linkage 1400, the first linkage 1410, the first convex 1411, the second linkage 1420, the second convex 1421, the first link 1500, the first avoiding 1510, the second link 1600, the second avoiding slotted hole 1610, and the third crank arm 1700;

the device comprises a fixed frame 2000, a solid-sealed polar pole 3000, an isolation disconnecting link 3100, an operation pull rod 3200, an isolation bus connecting seat 3300, an incoming line metal rod 3400 and a grounding contact 3500.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If there is a description of the first, second, third and fourth only for the purpose of distinguishing between technical features, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, the three-station operating mechanism according to the embodiment of the present invention includes an installation frame 100, an isolation operating shaft 200, a ground operating shaft 300, a first fixing seat 400, a first guide sleeve 510, a first guide rod 520, a first spring 530, a second fixing seat 600, a second guide sleeve 710, a second guide rod 720, a second spring 730, a first crank arm 800, and a second crank arm 900, wherein the isolation operating shaft 200 is horizontally disposed on the installation frame 100, and two ends of the isolation operating shaft are respectively rotatably connected to the installation frame 100; the grounding operation shaft 300 is transversely arranged on the mounting frame 100 and is positioned below the isolation operation shaft 200, and two ends of the grounding operation shaft 300 are respectively rotatably connected with the mounting frame 100; the first fixing seat 400 is arranged on the mounting frame 100 and is positioned at the rear lower part of the isolation operation shaft 200; a first end of the first guide sleeve 510 is rotatably connected with the first fixed seat 400, and a second end of the first guide sleeve 510 is provided with a first guide groove 511 extending towards the first end; the first end of the first guide rod 520 is inserted into the first guide slot 511, the first guide rod 520 can slide in the first guide slot 511, the second end of the first guide rod 520 is rotatably connected with the isolation operation shaft 200, and the second end of the first guide rod 520 is provided with a first gasket 521; the first spring 530 is sleeved outside the first guide sleeve 510, and one end of the first spring abuts against the first gasket 521; the second fixing seat 600 is arranged on the mounting frame 100 and is positioned at the rear upper part of the grounding operation shaft 300; a second guide sleeve 710, a first end of which is rotatably connected to the second fixing base 600, and a second end of which is provided with a second guide groove (not shown) extending to the first end of the second guide sleeve 710; a first end of the second guide rod 720 is inserted into the second guide groove (not shown), the second guide rod 720 can slide in the second guide groove (not shown), a second end of the second guide rod 720 is rotatably connected with the grounding operating shaft 300, and a second gasket 721 is disposed at the second end of the second guide rod 720; the second spring 730 is sleeved outside the second guide sleeve 710, and one end of the second spring abuts against the second gasket 721; the first end of the first crank arm 800 is fixed on the isolation operation shaft 200, and the second end of the first crank arm 800 is in transmission connection with the three-station isolation grounding switch; a first end of the second crank arm 900 is fixed on the grounding operation shaft 300, and a second end of the second crank arm 900 is in transmission connection with the three-station isolation grounding switch; wherein, one end of the same side of the isolating operation shaft 200 and the grounding operation shaft 300 respectively extends to the outside of the mounting block 100.

Wherein, the both sides of mounting bracket 100 all bend inwards, form a "" style of calligraphy, both sides are parallel to each other, keep apart the both ends of operating axis 200 and ground connection operating axis 300 and equally divide respectively with the both sides fixed connection of mounting bracket 100, simultaneously, keep apart operating axis 200 and ground connection operating axis 300 and lie in the one end with one side and all pass mounting bracket 100 to be connected with outside transmission, it should think, can adopt electric drive or manual drive's mode, rotate with drive isolation operating axis 200 or ground connection operating axis 300.

In some embodiments of the present invention, the device further comprises a first blocking portion 1000, a second blocking portion 1200, two first limiting portions 1100 and two second limiting portions 1300, wherein the first blocking portion 1000 is disposed on the isolation operation shaft 200 and rotates along with the rotation of the isolation operation shaft 200; the two first limiting parts 1100 are fixed on the mounting frame 100 and distributed in the plane where the first blocking part 1000 rotates; the second stopper 1200 is provided on the ground operation shaft 300 and rotates as the ground operation shaft 300 rotates; the two second limiting portions 1300 are fixed on the mounting frame 100 and distributed in the plane where the second blocking portion 1200 rotates; when the isolating operation shaft 200 or the grounding operation shaft 300 rotates, the first blocking portion 1000 moves back and forth between the two first limiting portions 1100, and the second blocking portion 1200 moves back and forth between the two second limiting portions 1300 to limit the rotating angle of the isolating operation shaft 200 or the grounding operation shaft 300. By using the first blocking part 1000, the first limiting part 1100, the second blocking part 1200 and the second limiting part 1300, the range of the rotation angle of the isolating operation shaft 200 or the grounding operation shaft 300 can be further limited, so as to ensure that the three-position isolating switch is only in the state of isolating switch-on/off or grounding switch-on/off, further improve the safety and stability, and in addition, limit the rotation angle of the isolating operation shaft 200 or the grounding operation shaft 300, so as to avoid the first guide rod 520 being separated from the first guide groove 511 or the second guide rod 720 being separated from the second guide groove (not shown), furthermore, under the disclosure of the technical solution of the present invention, a person skilled in the art can also avoid the first guide rod 520 being separated from the first guide groove 511 by setting the sizes of the first guide rod 520 and the first guide groove 511, and the second guide rod 720 and the second guide groove (not shown), or the second guide bar 720 is disengaged from the second guide groove (not shown).

In some embodiments of the present invention, the two first limiting portions 1100 are respectively provided with a first buffering portion 1110 on the side where they abut against the first blocking portion 1000, and the two second limiting portions 1300 are respectively provided with a second buffering portion 1310 on the side where they abut against the second blocking portion 1200. The first buffer portion 1110 and the second buffer portion 1310 are provided, so that impact force generated during collision between the first blocking portion 1000 and the first limiting portion 1100 or between the second blocking portion 1200 and the second limiting portion 1300 can be reduced, the situation that the isolation operation shaft 200 or the grounding operation shaft 300 rotates reversely can be prevented, meanwhile, the situation that damage or abrasion is caused between the first blocking portion 1000 and the first limiting portion 1100 or between the second blocking portion 1200 and the second limiting portion 1300 due to collision can be avoided, and reliability and safety are improved.

In some embodiments of the present invention, the first buffer portion 1110 and the second buffer portion 1310 are rubber pads or disc springs.

In some embodiments of the present invention, the first fixing seat 400 includes two first connecting plates disposed oppositely, the first ends of the two first connecting plates are fixed on the mounting frame 100 respectively, the first end of the first guiding sleeve 510 is provided with a first pin, and the two ends of the first pin are connected to the second ends of the two first connecting plates respectively. The first end of the first guide sleeve 510 can rotate around the first fixed seat 400 by using the first pin and the two first connection plates.

In some embodiments of the present invention, the second fixing base 600 includes two oppositely disposed second connecting plates, the first ends of the two second connecting plates are respectively fixed on the mounting frame 100, the first end of the second guiding sleeve 710 is provided with a second pin, and the two ends of the second pin are respectively rotatably connected with the second ends of the two second connecting plates. The first end of the second guide sleeve 710 can rotate around the first fixing base 400 by using the second pin and the two second connecting plates.

In some embodiments of the present invention, two third connecting plates disposed oppositely are disposed on the isolation operating shaft 200, the second end of the first guiding rod 520 is further provided with a third pin, and two ends of the third pin are respectively connected to the second ends of the two third connecting plates. By utilizing the third connecting plate and the third pin shaft, the first guide rod 520 can rotate along with the rotation of the isolation operation shaft 200, and meanwhile, the first guide sleeve 510 is matched, the first guide rod 520 can slide in the first guide groove 511, and the first guide sleeve 510, the first fixed seat 400 and the first gasket 521 are matched to compress or release the first spring 530, and then the first connecting lever 800 is matched to drive the three-position isolation switch to realize the switching of the isolation switching-closing switch.

In some embodiments of the present invention, two relatively disposed fourth connecting plates are disposed on the grounding operating shaft 300, the second end of the second guiding rod 720 is further provided with a fourth pin, and two ends of the fourth pin are respectively connected to the second ends of the two fourth connecting plates. By utilizing the fourth connecting plate and the fourth pin shaft, the second guide rod 720 can rotate along with the rotation of the grounding operation shaft 300, and meanwhile, the second guide sleeve 710 is matched, the second guide rod 720 can slide in a second guide groove (not shown), the second guide sleeve 710 is matched with the connection relation between the second guide sleeve 710 and the second fixed seat 600 and the second gasket 721, the second spring 730 can be compressed or released, and then the third position isolating switch can be driven to realize the switching of the grounding switching-on and switching-off by matching with the second crank arm 900.

A three-position operating mechanism according to an embodiment of the present invention is described in detail below with reference to fig. 3 to 6 as a specific embodiment. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

Referring to fig. 3 and 4, the mounting frame 100 is mounted on the mounting frame 2000, the solid-sealed polar pole 3000 is also mounted on the mounting frame 2000, a three-position isolating switch is arranged in the solid-sealed polar pole 3000, the three-position isolating switch at least comprises an isolating knife switch 3100, an operating pull rod 3200, an isolating bus connecting seat 3300, an incoming line metal rod 3400 and a grounding contact 3500, the isolating bus connecting seat 3300 is electrically connected with the outgoing line side of the insulated cabinet, the grounding contact 3500 is electrically connected with the wiring side of the insulated cabinet, the incoming line metal rod 3400 is fixed in the solid-sealed polar pole 3000 and is electrically connected with the incoming line side of the insulated cabinet, in addition, one end of the isolating knife switch 3100 is rotatably connected with the incoming line metal rod 3400, one end of the operating pull rod 3200 is hinged with the isolating knife switch 3100, the other end of the operating pull rod 3200 extends to the outside of the solid-sealed polar pole 3000 and is in transmission connection with the first crank arm 800 and the second crank arm 900, the isolating knife switch connecting, the states of isolated switch-on, switch-off and grounding switch-on are realized.

Referring to fig. 5 and 6, in this embodiment, a linkage rod 1400, a first connecting rod 1500, a second connecting rod 1600, and a third connecting rod 1700 are further disposed between the first connecting rod 800, the second connecting rod 900, and the operating pull rod 3200, a first end of the third connecting rod 1700 is fixed on the linkage rod 1400, a second end of the third connecting rod 1700 is rotatably connected to an end of the operating pull rod 3200 disposed outside the embedded pole 3000, in this embodiment, there are three sets of embedded poles 3000, so three sets of operating pull rods 3200 are respectively connected to the linkage rod 1400 through three sets of third connecting rods 1700, that is, the linkage rod 1400 simultaneously drives three sets of isolated three-position isolation switches of the three sets of embedded poles 3000, wherein two ends of the linkage rod 1400 are respectively rotatably connected to the fixing frame 2000, the linkage rod 1400 is disposed above the operating pull rod, the isolating operating shaft 200 and the grounding operating shaft 300 extend in the left-right direction, and the linkage rod 1400 extends in the front-back direction, the operation pull rod 3200 extends along the left-right direction, a first linkage plate 1410 and a second linkage plate 1420 are respectively arranged on two sides of the side wall of the linkage rod 1400, the first linkage plate 1410 and the second linkage plate 1420 are respectively perpendicular to the linkage rod 1400, in this embodiment, the first linkage plate 1410 and the second linkage plate 1420 are of an integral structure and perpendicular to the linkage rod 1400, in addition, a first convex portion 1411 parallel to the linkage rod 1400 is arranged on the first linkage plate 1410, a second convex portion 1421 parallel to the linkage rod 1400 is arranged on the second linkage plate 1420, meanwhile, the first connecting rod 1500 and the second connecting rod 1600 are arranged along the vertical direction, a first end of the first connecting rod is rotatably connected with a second end of the first crank arm 800, a first end of the second connecting rod is rotatably connected with a second end of the second crank arm 900, a first avoidance slot 1510 is arranged on the second end of the first connecting rod along the extending direction, a second avoidance slot is arranged on the second end of the second connecting rod along the extending direction, the first avoiding slot 1510 and the second avoiding slot 1610 are waist-shaped hole structures and extend along the vertical direction, the first avoiding slot 1510 is sleeved on the first convex portion 1411, the second avoiding slot 1610 is sleeved on the second convex portion 1421, when the isolating operation shaft 200 rotates, the first connecting lever 800 is driven to rotate, so that the first connecting rod 1500 can be pulled to move upwards or downwards, when the first convex portion 1411 touches the upper end and the lower end of the first avoiding slot 1510, the linkage rod 1400 can be pulled to rotate forwards or backwards, so that the third connecting lever 1700 can be driven to rotate, so that the operation pulling can be driven to move forwards and backwards, so that the isolating knife switch 3100 can be connected with or separated from the isolating bus connecting seat 3300, and similarly, by driving the rotation of the grounding operation shaft 300, the second connecting lever 900 can also be driven to rotate, so that the second connecting lever 1600 is driven to move upwards or downwards, so that the linkage rod 1400 is driven to rotate, so that the operation pull rod 3200 is driven to move, thereby connecting or disconnecting the isolation blade 3100 to the ground contact 3500. By cooperating with the linkage rod 1400, the first link 1500, the second link 1600, and the third crank 1700, the direction-changing transmission can be realized, that is, the operation rod 3200 can move back and forth by initially isolating the rotation of the operation shaft 200 or the ground operation shaft 300.

It should be understood that, when the isolating operation shaft 200 and the grounding operation shaft 300 rotate, only one can rotate, for example, when the isolating operation shaft 200 or the grounding operation shaft 300 is rotated alone, the operation of isolating switching-on and switching-off or grounding switching-on and switching-off can be realized respectively, but the switching from isolating switching-on to grounding switching-on or the switching from grounding switching-on to isolating switching-on needs to firstly make the three-position isolating grounding switch pass through the state of switching-off, namely, the sequence of "isolating switching-on → switching-off → grounding switching-on" or "grounding switching-off → isolating switching-on"; namely, the isolation operation shaft 200 needs to be rotated first to realize the switching from isolation switching-on to switching-off, and then the grounding operation shaft 300 continues to be rotated to realize the switching from switching-off to grounding switching-on; or, the grounding operation shaft 300 is rotated first to realize the switching from grounding switching to disconnecting switching, and then the isolation operation shaft 200 is rotated continuously to realize the switching from disconnecting switching to isolating switching. Wherein, concrete transmission principle in this embodiment belongs to technical field personnel's conventional technical means, combines specific drive mechanism, then can pass through the utility model discloses a three station operating device realize the transmission with three station isolator and are connected, and then realize keeping apart three kinds of state switching of combined floodgate, separating brake and ground connection combined floodgate.

According to the three-station operating mechanism of the embodiment of the present invention, by such an arrangement, at least some effects can be achieved, when the isolation switching on/off operation or the ground switching on/off operation is required, the isolation operating shaft 200 or the ground operating shaft 300 can be driven to rotate to drive the first guide rod 520, the second guide rod 720 to rotate, the first fixing seat 400 and the first guide sleeve 510 or the second fixing seat 600 and the second guide sleeve 710 are matched to respectively compress and store energy for the first spring 530 or the second spring 730, the energy can be automatically released after the dead point of the first spring 530 or the second spring 730 is passed, and further the isolation operating shaft 200 or the ground operating shaft 300 is driven to continue to rotate, and the three-station isolation grounding switch is driven to realize the isolation switching on/off operation or the ground switching on/off operation through the first crank arm 800 and the second crank arm 900, the structure of the present invention is simple, when the isolation switching on/off operation or the ground switching on/off operation is satisfied, the speed and the force of closing or opening the brake are improved, and meanwhile, the overall size is reduced and the production cost is reduced.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A three-position operating mechanism, comprising:

a mounting frame;

the isolation operation shaft is transversely arranged on the mounting rack, and two ends of the isolation operation shaft are respectively in rotary connection with the mounting rack;

the grounding operation shaft is transversely arranged on the mounting frame and is positioned below the isolation operation shaft, and two ends of the grounding operation shaft are respectively in rotating connection with the mounting frame;

the first fixed seat is arranged on the mounting frame and is positioned at the rear lower part of the isolation operation shaft;

the first end of the first guide sleeve is rotatably connected with the first fixed seat, and the second end of the first guide sleeve is provided with a first guide groove extending to the first end of the first guide sleeve;

the first end of the first guide rod is inserted into the first guide groove, the first guide rod can slide in the first guide groove, the second end of the first guide rod is rotatably connected with the isolation operation shaft, and the second end of the first guide rod is provided with a first gasket;

the first spring is sleeved outside the first guide sleeve, and one end of the first spring is abutted to the first gasket;

the second fixed seat is arranged on the mounting frame and is positioned above and behind the grounding operation shaft;

the first end of the second guide sleeve is rotatably connected with the second fixed seat, and the second end of the second guide sleeve is provided with a second guide groove extending to the first end of the second guide sleeve;

a first end of the second guide rod is inserted into the second guide groove, the second guide rod can slide in the second guide groove, a second end of the second guide rod is rotatably connected with the grounding operation shaft, and a second gasket is arranged at the second end of the second guide rod;

the second spring is sleeved outside the second guide sleeve, and one end of the second spring is abutted to the second gasket;

the first end of the first crank arm is fixed on the isolation operation shaft, and the second end of the first crank arm is in transmission connection with the three-station isolation grounding switch;

the first end of the second crank arm is fixed on the grounding operation shaft, and the second end of the second crank arm is in transmission connection with the three-station isolation grounding switch;

one end of the same side of the isolation operation shaft and the grounding operation shaft extends to the outside of the mounting rack respectively.

2. The three-position operating mechanism of claim 1, further comprising:

the first blocking part is arranged on the isolation operation shaft and rotates along with the rotation of the isolation operation shaft;

the two first limiting parts are fixed on the mounting rack and distributed in a plane where the first blocking parts rotate;

the second blocking part is arranged on the grounding operation shaft and rotates along with the rotation of the grounding operation shaft;

the two second limiting parts are fixed on the mounting rack and distributed in a plane where the second blocking parts rotate;

when the isolation operation shaft or the grounding operation shaft rotates, the first blocking part moves back and forth between the two first limiting parts, and the second blocking part moves back and forth between the two second limiting parts so as to limit the rotating angle of the isolation operation shaft or the grounding operation shaft.

3. The three-position operating mechanism of claim 2, wherein: the side surfaces of the two first limiting parts, which are abutted against the first blocking parts, are respectively provided with a first buffering part, and the side surfaces of the two second limiting parts, which are abutted against the second blocking parts, are respectively provided with a second buffering part.

4. The three-position operating mechanism of claim 3, wherein: the first buffer part and the second buffer part are rubber pads or disc springs.

5. The three-position operating mechanism of claim 1, wherein: the first fixing seat comprises two first connecting plates which are oppositely arranged, the first ends of the first connecting plates are fixed on the mounting frame respectively, the first end of the first guide sleeve is provided with a first pin shaft, and the two ends of the first pin shaft are connected with the second ends of the first connecting plates in a rotating mode respectively.

6. The three-position operating mechanism of claim 1, wherein: the second fixing seat comprises two second connecting plates which are oppositely arranged, the first ends of the second connecting plates are fixed on the mounting frame respectively, the first ends of the second guide sleeves are provided with second pin shafts, and the two ends of each second pin shaft are connected with the second ends of the second connecting plates in a rotating mode respectively.

7. The three-position operating mechanism of claim 1, wherein: the isolation operation shaft is provided with two oppositely arranged third connecting plates, the second end of the first guide rod is further provided with a third pin shaft, and two ends of the third pin shaft are respectively rotatably connected with the second ends of the two third connecting plates.

8. The three-position operating mechanism of claim 1, wherein: the grounding operation shaft is provided with two oppositely arranged fourth connecting plates, the second end of the second guide rod is further provided with a fourth pin shaft, and two ends of the fourth pin shaft are respectively connected with the second ends of the two fourth connecting plates in a rotating mode.