CN2699454Y

CN2699454Y - Rack-and-pinion separating arrangement for duplicate supply automatic changeover switch

Info

Publication number: CN2699454Y
Application number: CN 200420022982
Authority: CN
Inventors: 过孝刚
Original assignee: Shanghai Electric Co ltd People Electric Factory
Current assignee: Shanghai Electric Co ltd People Electric Factory
Priority date: 2004-05-21
Filing date: 2004-05-21
Publication date: 2005-05-11
Anticipated expiration: 2014-05-21

Abstract

The utility model relates to a duplicate supply automatic changeover switch, in particularly to a rack-and-pinion separating arrangement for duplicate supply automatic changeover switch, comprising a pinion, racks installed at both sides of the pinion and a push bar. The utility model is characterized in that the device also comprises an upper sliding plate, a lower sliding plate, a protruding dais, a spring and a top bar, the side face of the lower sliding plate is connected with the racks, and the bottom of the lower sliding plate is provided with a hole; the side face of the upper sliding plate is connected with the push bar, the top of the upper sliding plate is provided with a connection hole, and the top bar is a bar which comprises a protruding shoulder and whose top is provided with arc surface. The top of the top bar extends out from the hole on the lower sliding plate, the protruding shoulder of the top bar is pressed by the spring which is fixed at the bottom of the lower sliding plate by a bracket, and the protruding dais is arranged at the lower side of the lower sliding plate. The upper side of the lower sliding plate is provided with the upper sliding plate, and after the top of the top bar comes into contact with the protruding dais, the tail of the top bar can extend out from the bracket and enters into the connection hole of the upper sliding plate. The utility model has simple and reliable structure, the selected power of motor is small, thus reducing the volume of a plastic housing switch, and the cost is reduced.

Description

The rack-and-pinion separator that is used for double power supply automatic switching switch

(1) technical field

The utility model relates to double power supply automatic switching switch.

(2) background technology

Double power supply automatic switching switch generally adopts the plastic shell structure.Use the plastic shell double power supply automatic switching switch of single electric motor, the selection of motor is most important, because motor involves volume, weight, cost, power consumption and the reliability of appliance switch.The theory of mechanics of single motor plastic shell double power supply automatic switching switch is motor to be rotatablely moved convert the linear reciprocating motion of moulding the shell switch to.Existing single motor plastic shell double power supply automatic switching switch adopts cam or lever construction mostly, cam or lever construction are because the variation of the anglec of rotation, make that changing the thrust of coming by motor torque can not keep maximum output in effective travel, can only choose more powerful motor, to satisfy the thrust requirement of moulding the shell switch for this reason.The plastic shell double power supply automatic switching switch also adopted alternative mechanical structure, be that motor is by the tooth bar engagement of gear rotation with both sides, two tooth bars close thereby drive two passes one of moulding the shell switch with push rod with opposite direction moving linearly, reach the purpose of Switching power.But duplicate supply is moulded the switch motion of shell switch requirement and must be one and close earlier, and just open for second, promptly two switches can not move simultaneously, must be one in front and one in back, but the pinion and-rack structure can not satisfy the requirement that duplicate supply is moulded the shell switch.

(3) summary of the invention

The purpose of this utility model is to provide a kind of rack-and-pinion separator that is used for double power supply automatic switching switch, this separator can satisfy duplicate supply and mould the shell switch and cut out the requirement of afterwards opening earlier, rack-and-pinion transmission thrust efficiency height, the power of motor of selecting for use is little, thereby reduce the volume of moulding the shell switch, reduce cost.

The utility model is achieved in that a kind of rack-and-pinion separator that is used for double power supply automatic switching switch, comprise gear, be loaded on the tooth bar of gear both sides, push rod, it is characterized in that this device also comprises upper slide, lower skateboard, boss, spring, push rod, lower skateboard side and tooth bar link, the lower skateboard bottom has the hole, upper slide side and push rod link, the upper slide top has connection holes, push rod is to contain convex shoulder, the bar of cambered surface is arranged at the top, the hole of lower skateboard is stretched out at the push rod top, the push rod convex shoulder is pushed down by spring, spring is fixed on the lower skateboard bottom by support, and boss is housed below lower skateboard, and upper slide is equipped with in the lower skateboard top, after boss was run at the push rod top, the push rod afterbody can stretch out in the connection holes that enters upper slide from support.

The above-mentioned rack-and-pinion separator that is used for double power supply automatic switching switch, described upper slide, lower skateboard are U-shaped, the cooperation of staggering that overlaps mutually of upper and lower slide plate.

Operation principle of the present utility model is to ask employing slide down plate structure at tooth bar and push rod, be that tooth bar connects with lower skateboard, upper slide connects with push rod, push rod connects moulds the shell switch, slide plate is asked by push rod and is connected with spring up and down, slide plate can mutually combine so up and down, also can be separated from each other, and closes the purpose of afterwards opening earlier thereby realized moulding the shell switch.This rack-and-pinion separator adopts two tooth bars of gear drive gear both sides, and two slide plates about two rack drives, upper slide drive push rod and remove to promote to mould the shell switch.Two tooth bars are because the direction of motion is opposite, and just in time actuable switch is made the change action of Push And Release.Push rod and spring are housed between slide plate up and down, boss is housed below lower skateboard, under the boss effect, slide down is firm and hard existing separated and is connected, thereby realizes moulding the action request that earlier disconnect back closure of shell switch in handoff procedure.This apparatus structure is simple and reliable, can be than the output torque of utilizing motor of big limit, and the power of motor of selecting for use is little, thereby can reduce the volume of moulding the shell switch, reduces cost.

(4) description of drawings

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is used for the rack-and-pinion separator structural representation of double power supply automatic switching switch for the utility model;

The structural representation that Fig. 2 lumps together for slide down hardens;

Fig. 3 is a slide plate separated structures schematic diagram up and down.

Among the figure: 1 first push rod, 2 first upper slides, 3 first lower skateboards, 4 first tooth bars, 5 gears, 6 second tooth bars, 7 second lower skateboards, 8 second upper slides, 9 second push rods, 10 first push rods, 11 first springs, 12 first boss, 13 first connection holes, 14 first supports.

(5) embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, a kind of rack-and-pinion separator that is used for double power supply automatic switching switch comprises gear 5, is loaded on tooth bar 4,6, push rod 1,9, upper slide 2,8, lower skateboard 3,7, boss, spring, the push rod of gear 5 both sides.Boss, spring, push rod comprise first boss 23, first spring 11, first push rod 10 and second boss, second spring, second push rod.The rack-and-pinion separator of gear both sides is symmetrical, and existing first separator with a side specifies.Lower skateboard 3 sides and tooth bar 4 link, and lower skateboard 3 bottoms have the hole; Upper slide 2 sides and push rod 1 link, and upper slide 2 tops have connection holes 13, and upper slide 2, lower skateboard 3 are U-shaped, upper and lower slide plate 2, the 3 mutual cooperations of staggering that overlap, and upper and lower like this slide plate 2,3, tooth bar 4, push rod 1 are formed box-shaped.

On 2,3 on upper and lower slide plate push rod 10, spring 11 are housed, push rod 10 for contain convex shoulder, the bar of cambered surface is arranged at the top, the hole that lower skateboard 3 is stretched out at push rod 10 tops, push rod 10 convex shoulders are pushed down by spring 11, spring 11 is fixed on lower skateboard 3 bottoms by support 14.Boss 12 is housed below lower skateboard 3, and upper slide 2 is equipped with in lower skateboard 3 tops.

Referring to Fig. 2, when the gear driven tooth bar moves, the rack drives lower skateboard, lower skateboard drives push rod and moves.After boss 12 is run at push rod 10 tops, after push rod 10 overcomes spring 11 pressure, force on the push rod 10 and move, push rod 10 afterbodys stretch out in the connection holes 13 that enters upper slide 2 from support 14.Upper and lower slide plate 2,3 is connected, and tooth bar 4 drive lower skateboards 3, push rod 10, upper slide 2 move together, thereby drive the switching function that push rod 1 is realized switch.

Referring to Fig. 3, when upper and lower slide plate 2,3 continues motion, when push rod 10 breaks away from boss 12, pressure effect lower push rod 10 tops at spring 11 move down, push rod 10 afterbodys leave the connection holes 13 of upper slide 2, at this moment upper and lower slide plate 2,3 separates, and lower skateboard 3 continues to move forward under tooth bar 4 drives, and upper slide 2 and push rod 1 stop to move.When gear 5 rotated, at the opposite side of gear 5, tooth bar 6 was oppositely to move, and before push rod 10 did not knock boss 12, lower skateboard 7 was moving, and upper slide 8 is in halted state; Knock boss 12 until push rod 10, force push rod 10 to overcome on spring 11 pressure and move, enter the connection holes 13 of upper slide 8, thereby realize the connection of upper and lower slide plate 8,7, move together.

Same, the rack-and-pinion separator in the twin-power switch is one and moulds the shell switch opens that another is closed when the initial condition of switch, just one on two slide plates on the right, an on the left side.When diverter switch, motor begins to rotate, and is the right motion for the upper slide that connects switch (push rod), and promptly upper and lower slide plate moves 2,3 together, referring to Fig. 2; Stopping of the left side, promptly upper slide stops 8, and lower skateboard 7 moves.So just realized rack-and-pinion separator diverter switch discretely, reached and mould shell switch disconnection back closure earlier, or two action requests that switch all disconnects.

Claims

1. rack-and-pinion separator that is used for double power supply automatic switching switch, comprise gear, be loaded on the tooth bar of gear both sides, push rod, it is characterized in that this device also comprises upper slide, lower skateboard, boss, spring, push rod, lower skateboard side and tooth bar link, the lower skateboard bottom has the hole, upper slide side and push rod link, the upper slide top has connection holes, push rod is to contain convex shoulder, the bar of cambered surface is arranged at the top, the hole of lower skateboard is stretched out at the push rod top, the push rod convex shoulder is pushed down by spring, spring is fixed on the lower skateboard bottom by support, and boss is housed below lower skateboard, and upper slide is equipped with in the lower skateboard top, after boss was run at the push rod top, the push rod afterbody can stretch out in the connection holes that enters upper slide from support.

2. the rack-and-pinion separator that is used for double power supply automatic switching switch according to claim 1 is characterized in that upper slide, lower skateboard are U-shaped, the cooperation of staggering that overlaps mutually of upper and lower slide plate.