CN201084575Y - A high-pressure combined-type fall switch on outdoor posts - Google Patents

Abstract

The utility model provides an outdoor pole-mounted high voltage combined drop-out switch, aiming to eliminate the hidden dangers of the prior outdoor high voltage drop-out switch without a breaking and grounding structure, which is a three-phase integrated combined structure. The utility model is characterized in that: a three-phase ganged ground switch is arranged at the load side of each phase, a grounded moving blade fitted with a grounded static contact switch, which is electrically connected with the static contact arranged at the load side of each phase, is fixedly arranged on the grounded universal driving shaft of the three-phase ganged ground switch; a plurality of sprocket wheels of the universal driving shaft in locking or unlocking fit with the grounded interlocking mechanism of each phase are also fixedly arranged on the grounded universal driving shaft. A crank arm connecting lever on the driven shaft of the grounded interlocking mechanism is connected with a locking bar, as well as a plurality of driven shaft sprocket wheels in locking or unlocking fit with the sprocket wheels of the universal driving shaft. By embodying the technical proposal in the utility model, the utility model has the advantages of greatly simplifying the grounding operations of the drop-out switch in breaking state, ensuring the quality of grounding, and guaranteeing the working safety of the power distribution network.

Description

High-voltage combined falling switch on pole outdoor

Technical field

The utility model relates to high pressure drop switch on the outdoor post, the outdoor type high pressure drop switch of a set installation of downlead of transformer in particular.

Background technology

The high pressure drop switch is one pole type structure on the existing outdoor post; promptly include two an insulation chapelet, expulsion tube and expulsion tube two ends and two an insulation one pole type structure that switch contact, terminal block and hitch that the chapelet upper end is provided with constitute; separate being installed in the power circuit all do not possess the earthing device of safeguard protection effect.The transformer high-voltage side has a power failure, in order to overhaul and handling safety, generally need be on bus hanging earthing conductor, but sometimes because articulate multiple reasons such as quality problems or operation, earth connection becomes flexible even slippage happens occasionally, especially at the field or the mountainous rural area of remoteness, often hanging earthing conductor is not just directly operated, in case the electric energy of some power-supply device of its low pressure terminal use, as the UPS inverter, generator, the electric energy of capacitive compensator or other network is brought by counter, feed back high voltage more than 10,000 volts from high-pressure side by secondary input, the serious life safety that jeopardizes will cause unnecessary personal electric shock casualty accident.

Summary of the invention

Goal of the invention of the present utility model is to make the outdoor high-voltage drop switch to have sufficient fail safe to guarantee in interruption maintenance or other operation and a kind of high-voltage combined falling switch on pole outdoor of providing.The high-voltage combined falling switch on pole outdoor technical scheme that the utility model provides, its major technique content is: a kind of high-voltage combined falling switch on pole outdoor, it is the three-phase drop switch package assembly that is assembled in same base, also be provided with the base that is used for fixing the line bar frame plate is installed, each phase load side is provided with three earthed switches that link, each phase ground connection fixed contact of interlock earthed switch is electrically connected respectively and is arranged on each phase load side insulation chapelet upper end switch fixed contact, the ground moving knife that respectively joins that cooperates with three-phase ground connection fixed contact switch respectively is fixed on the ground connection universal driving shaft, also be fixed with on the ground connection universal driving shaft and each ground connection interlocking device locking mutually, the universal driving shaft chain wheel of cooperation left by lock, be set with the combined floodgate torsion spring on the ground connection universal driving shaft, rotation is arranged on the base of load side, and the one axle head is provided with and is articulated in the combined floodgate latch hook lock braking lock that has locked groove movingly on the base; Described ground connection interlocking device includes locking bar, end link is arranged on the crank connecting lever of driven shaft drive under the locking bar, act on the expulsion tube below through spacing guiding, locking bar upper end, suit reduction torsion spring on the driven shaft, and be fixed with the moving axis chain wheel locking that respectively links, lock and open the driven shaft chain wheel that cooperates; Its universal driving shaft chain wheel and driven shaft chain wheel are the crescent chain wheel, and both relative engagement upper lateral parts are equipped with the arc-shaped notch with the curved flanges complementary fit of relative chain wheel.

High-voltage combined falling switch on pole outdoor technical scheme of the present utility model, earthed switch and interlock thereof, interlocking device organically are arranged in the high pressure drop switch product structure, no matter be for overhauling or carrying out other relevant operation, need fall out or when taking the high pressure drop switch, just can operate requirement according to technology, operational grounding universal driving shaft timely, closed ground switch, and under the position-limiting action of locking bar, prevent the combined floodgate misoperation of drop switch.The technical program has not only been simplified the ground connection operation of drop switch greatly, has also guaranteed the ground connection quality, and has avoided the electric shock casualty accident under the drop switch gate-dividing state to take place completely, has guaranteed the safety of distribution network.

Description of drawings

Fig. 1 is the utility model overall structure schematic diagram

Fig. 2 to Fig. 6 chooses wherein one to show mutually and respectively move the structure chart of implementation procedure that wherein Fig. 2 is the three-dimensional structure diagram that expulsion tube closes a floodgate, the base portion of earthed switch separating brake is analysed and observe

Fig. 3 is the structural representation of another side of Fig. 2

Fig. 4 is the base sectional structure chart of expulsion tube separating brake, earthed switch separating brake

Fig. 5 is the structural representation of another side of Fig. 4

Fig. 6 is the base portion sectional structure chart that expulsion tube separating brake, earthed switch close a floodgate.

Embodiment

The high-voltage combined falling switch on pole outdoor that the utility model provides, its concrete structure as shown in Figure 1, it is made of the three cover drop switch assemblings corresponding to each phase line that are assembled in same base, base 1 middle part is provided with installation frame plate 2 and is used for fixing on the sub-line bar of installation, and the upper contact head of each phase drop switch is the inlet wire side.Be provided with three earthed switches that link in each phase load side of drop switch, each phase ground connection fixed contact 33 of interlock earthed switch is electrically connected switch fixed contact 28 1 sides that are arranged at each phase load side insulation chapelet upper end respectively, ground connection fixed contact 33 is the elastic clip structure that two elasticity fingertips constitute, with each mutually the ground moving knife 32 that respectively joins that cooperates of ground connection fixed contact 33 switches be fixedly installed on the ground connection moving knife arm 40 of ground connection universal driving shaft 30, ground connection universal driving shaft 30 rotates the drop switch load side that is arranged at base 1, be set on this ground connection universal driving shaft 30, be hung on base 1 and universal driving shaft 30 is provided with the combined floodgate torsion spring, be fixed with on the ground connection universal driving shaft 30 of supporting insulator below and each ground connection interlocking device locking mutually, the universal driving shaft chain wheel 34 of cooperation left by lock, as Fig. 3 and shown in Figure 5, the base axially outer end of ground connection universal driving shaft 30 is provided with a hat type braking lock 60, the outer surface of this braking lock 60 is provided with locked groove 61, and this braking lock 60 is locked movingly with the combined floodgate latch hook 62 that is articulated in base 1.Above-mentioned ground connection interlocking device includes locking bar 38, the following end link of locking bar 38 is arranged on the crank connecting lever 49 that is driven by driven shaft 42, as shown in Figure 6, locking bar 38 passes the below that gathering sill 10 upper ends on the base 1 act on expulsion tube 29, for further locking bar 38 epimeres being led, be fixed in load side fixed contact 28 and be provided with guiding bent plate 43, guiding bent plate 43 is provided with guide plate 44 to locking bar 38 upper ends near bending, and locking bar 38 upper ends are provided with roller 20 and fixed mount thereof; Be set in driven shaft 42, be hung on base 1 and be provided with reduction torsion spring, also be fixed with on the driven shaft 42 with moving axis chain wheel 34 lockings that respectively link, lock and open the driven shaft chain wheel 37 that cooperates, two chain wheels 34,37 are the crescent chain wheel, and both relative engagement upper lateral parts are equipped with the arc-shaped notch with the curved flanges complementary fit of relative chain wheel.

Its action implementation procedure is: 1, as shown in Figures 2 and 3, the interlock earthed switch is in gate-dividing state, contact of earth pallet 62 hook locks are on the braking lock 60 of ground connection universal driving shaft 30, during expulsion tube 29 closing operations, expulsion tube 29 bodys press locking bar 38 downwards, close a floodgate until expulsion tube 29, in this course, descending locking bar 38 presses its crank connecting lever 49, force driven shaft 42 to rotate, drive the energy storage of driven shaft back-moving spring, revolve in the rotation of driven shaft chain wheel 37 with driven shaft 42 simultaneously, the arc-shaped notch complementary fit of its curved flanges and universal driving shaft chain wheel 34, restriction, locking ground connection moving knife 32 gate-dividing states, thereby make ground connection moving knife 32 when expulsion tube closes a floodgate, can not carry out the operation of combined floodgate ground connection; 2, after expulsion tube 29 separating brakes or the dislodging, locking bar 38 loses expulsion tube 29 restrictions, under the energy storage effect of driven shaft reduction torsion spring, driven shaft chain wheel 37 curved flanges slip over along universal driving shaft chain wheel 34 arc-shaped notch, locking bar 38 rotates up with driven shaft 42, as shown in Figure 4, the arc-shaped notch that breaks away from universal driving shaft chain wheel 34 until driven shaft chain wheel 37 curved flanges, thereby make the ground connection universal driving shaft break away from the locking action of complementary chain wheel, at this moment spur combined floodgate latch hook 62, ground connection universal driving shaft 30 clockwise rotates under the drive of its combined floodgate torsion spring, drive ground connection moving knife 32 and ground connection fixed contact 33 contacts of earth action, meanwhile, the curved flanges of universal driving shaft chain wheel 34 slips into the arc-shaped notch of driven shaft chain wheel 37 in rotation, thereby the up position of locking locking bar 38, the phenomenon that expulsion tube 29 closes a floodgate takes place in mistake under the earthed switch "on" position to avoid, as shown in Figure 6; 3, interlock earthed switch sub-switching operation: with restraining the combined floodgate ring 35 that makes on the excellent little hook pulling ground connection moving knife, force ground connection moving knife 32 to break away from ground connection fixed contact 33, it in rotation ground connection universal driving shaft combined floodgate torque spring energy store, when ground connection universal driving shaft 30 rotates final position, the locked groove 61 of the braking lock 60 of interlock grounding shaft 30 axle heads enters combined floodgate latch hook 62 and is grounded universal driving shaft 30 hook locks, be pulled in the process at ground connection universal driving shaft 30, the curved flanges of universal driving shaft chain wheel 34 breaks away from the arc-shaped notch of driven shaft chain wheel 37, make both break away from the mutual restriction state, just can carry out the expulsion tube closing operation this moment, expulsion tube 29 presses locking bar 38 and crank connecting lever 49 thereof when closing a floodgate, drive on driven shaft 42 and the chain wheel 37 thereof and revolve, the curved flanges of driven shaft chain wheel 37 slips in the arc-shaped notch of universal driving shaft chain wheel 34, promptly be grounded universal driving shaft 30 lockings again, i.e. configuration state as shown in Figure 2.

Claims (2)

1. high-voltage combined falling switch on pole outdoor, it is characterized in that it is the three-phase drop switch package assembly that is assembled in same base, also be provided with the base that is used for fixing the line bar frame plate is installed, each phase load side is provided with three earthed switches that link, each phase ground connection fixed contact (33) of interlock earthed switch is electrically connected respectively and is arranged on each phase load side insulation chapelet upper end switch fixed contact (28), the ground moving knife that respectively joins that cooperates with three-phase ground connection fixed contact switch respectively is fixed on the ground connection universal driving shaft (30), also be fixed with on the ground connection universal driving shaft and each ground connection interlocking device locking mutually, the universal driving shaft chain wheel (34) of cooperation left by lock, be set with the combined floodgate torsion spring on the ground connection universal driving shaft, rotation is arranged on the base (1) of load side, and the one axle head is provided with and is articulated in combined floodgate latch hook (62) the lock braking lock (60) that has locked groove movingly on the base; Described ground connection interlocking device includes locking bar (38), end link is arranged on the crank connecting lever (49) of driven shaft drive under the locking bar, act on the expulsion tube below through spacing guiding, locking bar upper end, suit reduction torsion spring on the driven shaft, and be fixed with moving axis chain wheel (34) locking that respectively links, lock and open the driven shaft chain wheel (37) that cooperates; Its universal driving shaft chain wheel and driven shaft chain wheel are the crescent chain wheel, and both relative engagement upper lateral parts are equipped with the arc-shaped notch with the curved flanges complementary fit of relative chain wheel.

2. combined falling switch according to claim 1 is characterized in that the ground connection moving knife is provided with the ring (35) that closes a floodgate.

Images