CN206313347U - A kind of device for switching drawer chassis - Google Patents
A kind of device for switching drawer chassis Download PDFInfo
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- CN206313347U CN206313347U CN201621364897.7U CN201621364897U CN206313347U CN 206313347 U CN206313347 U CN 206313347U CN 201621364897 U CN201621364897 U CN 201621364897U CN 206313347 U CN206313347 U CN 206313347U
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- drawer chassis
- plate
- switching
- slide
- lockplate
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Abstract
The utility model is related to a kind of device for switching drawer chassis, including：Drawer chassis framework；Electrical connection mechanism, in drawer chassis framework, for the main circuit of connecting valve electrical equipment body；Also include：Slide mechanism, in drawer chassis framework, for the fixation and turnover of device for switching body；Transmission device, is connected in drawer chassis framework and with slide mechanism, for driving slide mechanism to drive device for switching body to pass in and out.Compared with prior art, the power that the utility model is applied by screw rod, rack-plate and rotating shaft transmission, is easy to the fixation and turnover of moving switch electrical equipment body.
Description
Technical field
The utility model is related to a kind of Low Voltage Electrical Apparatus, more particularly, to a kind of device for switching drawer chassis.
Background technology
The structure of drawer type device for switching is that known to electrical apparatus industry, it is mainly made up of drawer chassis and body, when this
When body needs repairing or other are operated, body can be shaken out from drawer chassis, body is separated with major loop, so as to realize power-off
Operation, it is safe and reliable.
Existing device for switching drawer chassis, the drawer chassis of such as breaker, receiving when it drives body turnover drawer chassis
There is a tilting moment for making body be rotated up around main shaft in the bottom of drawer chassis in force, thus operator must with compared with
Big power can just overcome resistance, realize the propulsion or extraction of body.
Existing device for switching drawer chassis, because guide plate is in pull-out location latch-up-free mechanism, thus drawer chassis pull-out
State is smudgy；Secondly, guide plate separation point position also latch-up-free mechanism use, drawer chassis separation point position be not it is fool proof can
Lean on, threaten device for switching uses safety；Again, latch-up-free mechanism between two guide plates, when drawer chassis is pulled out, drawer chassis
On body can not completely disengage from out between a pair of side plates, so as to maintenance and the inspection to body bring inconvenience.
Although patent CN 101562314A disclose a kind of racking mechanism for breaker, however it be using screw rod,
Screw-bearing is connected with connecting rod makes axis of rotation, and transmission efficiency is not high.
Utility model content
The purpose of this utility model is exactly to provide a kind of device for switching for the defect for overcoming above-mentioned prior art to exist
Use drawer chassis.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of device for switching drawer chassis, including：
Drawer chassis framework；
Electrical connection mechanism, in drawer chassis framework, for the main circuit of connecting valve electrical equipment body；
Also include：
Slide mechanism, in drawer chassis framework, for the fixation and turnover of device for switching body；
Transmission device, is connected in drawer chassis framework and with slide mechanism, for driving slide mechanism to drive switch electricity
Device body is passed in and out.
The transmission device includes：
Rotating shaft, which is provided with multiple sector gears；
Drive link group, one end is connected with rotating shaft, and the other end is connected with slide mechanism, is slided for being driven in the rotation of rotating shaft
Dynamic mechanism kinematic；
Rack-plate, which is provided with multiple tooth bars of engagement corresponding with multiple sector gears respectively；
Screw rod, is connected with rack-plate, for driving rack-plate to slide, then drives axis of rotation.
The sector gear is provided with two altogether, and the rack-plate is provided with two tooth bars.
The drive link group is provided with two altogether, and any drive link group includes the connecting rod being sequentially connected, guide rod long and cam, two
Individual connecting rod is connected with the two ends of rotating shaft respectively, and the cam is connected with slide mechanism.
The ratio between the radius of the sector gear and the radius of rotating shaft are at least 2.
Center of gravity of the line of described two cams through device for switching body.
Center of rotation of the tie point of the guide rod long and cam higher than cam.
The drawer chassis framework include two blocks of side plates, the slide mechanism include be respectively arranged on two blocks of side plates and respectively with
Two two sliding units of cam correspondence connection, the sliding unit includes upper rail and lower guideway, and located at upper rail
The guide plate of slide plate and the slide plate slides connection and lower guideway between, the slide plate is slidably connected with upper rail and lower guideway respectively,
The guide plate is used for connecting valve electrical equipment body.
The slide mechanism also includes the upper locking module for locking guide plate and slide plate, and the upper locking module includes pressing
Button, spring, upper lockplate and upper lock shaft, the button are provided with the pin of pressing with crotch, the crotch and the spring
One end connects, and the other end of the spring is connected with upper lockplate, and the upper lockplate both sides are provided with fork, spike, the cunning
Plate is provided with front end stop hook and gear pin, and the upper lock shaft is fixed on slide plate.
When the spike of the upper lockplate touches front end stop hook, and button to press pin spacing by gear pin institute, upper lockplate
Fork by button press pin it is spacing when, realize the mutually locking between guide plate and slide plate；
The button pushes down the fork of lockplate, lockplate is taken off the spike of the other end around System of Rotating about Fixed Axis is locked
Stop hook before slide plate and unlock, now guide plate travels forward with respect to slide plate, and slide plate remains stationary；
When device for switching body is put into drawer chassis framework, the arc surface of upper lockplate is pushed down by body, make lockplate
The spike of the other end is departed from the stop hook before slide plate and unlock around locking System of Rotating about Fixed Axis, now guide plate is transported forward with respect to slide plate
It is dynamic, and slide plate remains stationary.
The slide mechanism also includes lower locking module, and the lower locking module includes lower lockplate, lower lock shaft, described
Lower lockplate descends lock shaft to be arranged on the rear end lower section of slide plate excessively, and lower lockplate lower end has projection；
When projection touches the front end of lower guideway, the locking of slide plate and lower guideway is realized.
Compared with prior art, the utility model has advantages below：
1) power applied by screw rod, rack-plate and rotating shaft transmission, is easy to the fixation and turnover of moving switch electrical equipment body.
2) sector gear is provided with two altogether, and rack-plate is provided with two tooth bars, there are two stress points of balance, Ke Yibao
It is steady when card device for switching body is moved.
3) the ratio between the radius of sector gear and the radius of rotating shaft are at least 2, can reach labour-saving effect.
4) two lines of cam through device for switching body center of gravity, forced position close to the position of body center of gravity, and
And the position of center line of making a concerted effort of bridge stress is touched on body Up Highway UHW and underframe approach, there's almost no inclining of rotating up body
Torque is turned over, bus is pressed into comparison of resistance when touching bridge small.
5) tie point of guide rod long and cam higher than cam center of rotation, play a part of to subtract power, so can with compared with
Small power realizes the propulsion and extraction of body.
6) can realize that body puts up later automatic locking.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model transmission device.
Fig. 3 is the structural representation of the utility model safety screen.
Fig. 4 is the schematic diagram of the connection clip for body being connected on busbar of the present utility model；
Wherein：1st, rotating shaft, 3, sector gear, 4, rack-plate, 5, screw rod, 6, base plate, 7, connecting rod, 8, guide rod long, 9, cam,
10th, roller, 11, chute, 12, guide plate, 13, slide plate, 14, sliding groove, 15, side plate, 16, upper rail, 17, lower guideway, 18, upper cunning
Block, 19, sliding block, 20, fulcrum post, 21, button, 22, small axle, 23, axis hole, 24, press pin, 25, crotch, 26, spring, 27, on
Lockplate, 28, upper lock shaft, 29, fork, 30, spike, 31, arc surface, 32, spring groove, 33, stop hook, 34, gear pin, 35, under
Lockplate, 36, lower lock shaft, 37, projection, 38, angle, 39, groove, 40, handle, 42, lock hook, 43, underframe, 44, sliding block,
45th, upper safety screen, 46, lower safety screen, 47, back-moving spring, 48, support, 49, slide block chamber, 50, spring base, 51, upper plate it is oblique
Push away side, 52, first pushes away side, 53, lower plate cant side, 54, second pushes away side, the 55, first slotted eye, the 56, second slotted eye, and 57, first inserts
Hole, the 58, second jack, the 59, first slider bore, the 60, second slider bore, 61, engaging nail, 62, engaging nail, 63, body busbar,
64th, drawer chassis busbar, 65, support, 66, spring, 67, ends points, 68, ends points, 69, the face of body busbar, 70, body
The face of busbar, 71, the contact surface of drawer chassis busbar, 72, the contact surface of drawer chassis busbar.
Specific embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the utility model
Implemented premised on technical scheme, given detailed implementation method and specific operating process, but guarantor of the present utility model
Shield scope is not limited to following embodiments.
A kind of device for switching drawer chassis, as shown in figure 1, including：
Drawer chassis framework；
Electrical connection mechanism, in drawer chassis framework, for the main circuit of connecting valve electrical equipment body；
Also include：
Slide mechanism, in drawer chassis framework, for the fixation and turnover of device for switching body；
Transmission device, is connected in drawer chassis framework and with slide mechanism, for driving slide mechanism to drive switch electricity
Device body is passed in and out.
As shown in Fig. 2 transmission device includes：
Rotating shaft 1, which is provided with multiple sector gears 3；
Drive link group, one end is connected with rotating shaft, and the other end is connected with slide mechanism, is slided for being driven in the rotation of rotating shaft
Dynamic mechanism kinematic；
Rack-plate 4, which is provided with multiple tooth bars of engagement corresponding with multiple sector gears 3 respectively；
Screw rod 5, is connected with rack-plate 4, for driving rack-plate 4 to slide, then drives axis of rotation.
Sector gear 3 is provided with two altogether, and rack-plate 4 is provided with two tooth bars.
Drive link group is provided with two altogether, and any drive link group includes the connecting rod 7 being sequentially connected, guide rod long 8 and cam 9, two
Two ends of the individual connecting rod 7 respectively with rotating shaft 1 are connected, and cam 9 is connected with slide mechanism.
The ratio between the radius of sector gear and the radius of rotating shaft are at least 2.
Center of gravity of two lines of cam 9 through device for switching body.
Center of rotation of the tie point of guide rod long 8 and cam 9 higher than cam 9.
Drawer chassis framework includes two blocks of side plates 15, and slide mechanism is on two blocks of side plates and convex with two respectively including being respectively arranged on
Two sliding units of the correspondence connection of wheel 9, sliding unit includes upper rail 16 and lower guideway 17, and located at upper rail 16 with
The guide plate 12 that slide plate 13 and slide plate 13 between guide rail 17 are slidably connected, slide plate 13 is slided with upper rail 16 and lower guideway 17 respectively
Dynamic connection, guide plate 12 is used for connecting valve electrical equipment body.
Slide mechanism also includes the upper locking module for locking guide plate 12 and slide plate 13, and upper locking module includes button
21st, spring 26, upper lockplate 27 and upper lock shaft 28, button 21 is provided with presses pin 24, crotch 25 and spring with crotch 25
26 one end connection, the other end of spring 26 is connected with upper lockplate 27, and the both sides of upper lockplate 27 are provided with fork 29, spike 30,
Slide plate 13 is provided with front end stop hook 33 and gear pin 34, and upper lock shaft 28 is fixed on slide plate 13.
When the spike 30 of upper lockplate 27 touches front end stop hook 33, and button 21 to press pin 24 spacing by the institute of gear pin 34, on
The fork 29 of lockplate 27 by button 21 press pin 24 it is spacing when, realize the mutually locking between guide plate 12 and slide plate 13；
Button 21 pushes down the fork 29 of lockplate 27, lockplate 27 is rotated around upper lock shaft 28 and is made the other end
Spike 30 departs from the stop hook 33 before slide plate 13 and unlocks, and now guide plate 12 travels forward with respect to slide plate 13, and slide plate 13 keeps quiet
Only；
When device for switching body is put into drawer chassis framework, the arc surface 31 of upper lockplate 27 is pushed down by body, make to lock
Fixed board 27 rotates around upper lock shaft 28 and the spike 30 of the other end is departed from the stop hook 33 before slide plate 13 and unlock, now guide plate 12
Travelled forward with respect to slide plate 13, and the remains stationary of slide plate 13.
Slide mechanism also includes lower locking module, and lower locking module includes lower lockplate 35, lower lock shaft 36, lower lockplate
35 descend lock shaft 36 to be arranged on the rear end lower section of slide plate 13 excessively, and the lower end of lower lockplate 35 has projection 37；
When projection 37 touches the front end of lower guideway 17, the locking of slide plate 13 and lower guideway 17 is realized.
Specifically, rotating shaft 1 is arranged in a pair of side plates 15, a pair of sector gears 3 are fixed in rotating shaft 1, and rotating shaft two ends have
A pair of links 7, respectively positioned at the inner side of a pair of side plates 15, connecting rod is connected with guide rod long 8, guide rod opposite side long and a pair of cams 9
It is connected, cam 9 has chute 11, the chute is engaged with a pair of rollers 10, roller is located in the sliding groove 14 of a pair of slide 13,
Body is placed on slide plate, body is shaken into or is shaken out by cam driven roller.
As shown in figure 1, the rotating shaft 1 of drawer chassis is arranged in the shaft hole 2 of a pair of side plates, and can be rotated in shaft hole,
A pair of sector gears 3 are installed in rotating shaft 1, sector gear 3 is engaged with the rack-plate 4 on base plate, and operation screw rod 5 is arranged on
On base plate, by rotating clockwise or counterclockwise screw rod 5, the tooth bar 4 on base plate 6 can be driven to move, make to be engaged with rack-plate
Sector gear rotation, operating physical force is transmitted to by sector gear by rotating shaft 1, the connecting rod 7 at rotating shaft two ends drives guide rod 8 long simultaneously to drive
Moving cam 9, so as to drive body to move.Driving the process of body motion is：Body is placed on a pair of guide plates 12, a pair of rollers 10
It is engaged with cam channel 11, the roller is separately fixed on a pair of guide plates 12 of slide mechanism, a pair of guide plates 12 are then arranged on
In another a pair of slide 13 of sled mechanism, sliding groove 14 is opened up respectively in a pair of slide 13, and make a pair on a pair of guide plates
Respectively in the sliding groove 14 of a pair of slide 13, a pair of slide 13 is separately mounted between the guide rail of a pair of slide roller 10,
And can be slid on guide rail slideway.
Operation principle：Assuming that body is in released state, operator rotates screw rod 5, base plate rack-plate is driven by screw rod 5
4 movements, the sector gear 3 engaged with rack-plate 4 drives rotating shaft 1 to turn clockwise, and drivening rod, guide rod long, cam make suitable
Clockwise rotates, and at this moment roller is just in cam channel outermost end, as cam further turns clockwise, after roller stress
Into in cam channel, simultaneously because a pair of rollers are integrally fixed on a pair of guide plates of slide mechanism, so roller is moved forward
The body on a pair of loading guide plates can be driven to push ahead together.When being engaged with roller due to the cam channel of the structure, stress
The position of body center of gravity is closely located to, and body Up Highway UHW is approached with the position of center line of making a concerted effort of tactile bridge stress on underframe, it is several
In the absence of the tilting moment for rotating up body, bus is set to be pressed into comparison of resistance when touching bridge small.So, if operator with
Less power can be achieved with the propulsion of body, reach link position；Conversely, when body switchs to separation point position by link position,
Contra rotating screw is only needed, sector gear is turned clockwise, ibid, simply the direction of motion is opposite for operation principle.
The operation principle of carriage is as follows：The drawer chassis of device for switching has side plate 15 a pair, in each side plate 15
Side is symmetrically provided with a set of slide mechanism with satisfying into respectively.The upper and lower rails 16,17 of slide mechanism are fixed by screws in side
On plate 15, slide plate 13 is slidably mounted between upper and lower rails 16,17, slide plate 13 is top, sliding block 18,19 supports.
Guide plate 12 is slidably mounted on slide plate 13, and is slidably engaged with the groove 11 on slide plate 13 by supporting pin 20 thereon, and
On the front end groove 11 of slide plate 13, the fulcrum post 20 installed in the front end of guide plate 12 is to slidably engage.
Button 21 on slide plate is arranged on the axis hole 23 above the front end of guide plate 12 by small axle 22, and can be around small axle 22
Rotation, is provided with button 21 and presses pin 24, crotch 25, there is the one end of aperture for connecting spring 26, upper lockplate 27 by crotch 25
By axle 28 installed in the front end top of guide plate 12, the side of button 21, and can be rotated around axle 28.There is shift fork in upper lock plate both sides
29, spike 30, arc surface 31, the other end of spring 26 is connected on lockplate 27, and spring 26 is located at the spring groove of guide plate 12
In 32, when the spike 30 of upper lockplate 27 touches the front end stop hook 33 of slide plate 13, and button 21 presses pin 24 by the gear pin of slide plate 13
34 institutes are spacing, the shift fork 29 of upper lockplate 27 by button 21 press pin 24 it is spacing when, realize the phase between guide plate 12 and slide plate 13
Mutually locking.Its releasing process can realize that a kind of is to press the button 21 on bottom guide 12, makes button around axle 22 by two kinds of operations
The shift fork 29 of lockplate 27 is pushed down in rotation, lockplate is rotated around axle 28 and before the spike 30 of the other end is departed from slide plate 13
Block 33 and unlock, now guide plate 12 travels forward with respect to slide plate 13, and the remains stationary of slide plate 13, and another kind is when body is put
When entering drawer chassis, the arc surface of upper lockplate is pushed down by body, lockplate 27 is rotated around axle 28, reached together with button is pressed
The unblock effect of sample.
The lower lockplate 35 of slide mechanism is arranged on the rear end lower section of slide plate 13 by axle 36, and can be rotated around axle 36,
The lower end of lower lockplate 35 has projection 37, and when projection 37 touches the front end of lower guideway 17, and the front end of lower lockplate 35 is led
When the rear end of plate 12 lower section angle 38 is touched, the locking of slide plate 13 and lower guideway 17 is capable of achieving.Its releasing process is：By inside
Removable guide 12, makes the lower section angle 38 of guide plate 12 boost the front end of lower lockplate 35, makes lower lockplate 35 around the dextrorotation of axle 36
Turn, slide plate 13 is unlocked so as to the projection 37 for forcing lower lockplate departs from the front end of lower guideway 17.
With the unblock between the unblock between guide plate 12 and slide plate 13 and slide plate 13 and lower guideway 17, make to be located at guide plate
The crotch 25 of the button 21 on 12 crosses the groove 39 of the front end of slide plate 13 and slide plate 13 is caught under the pulling force effect of spring 26
Groove 39, realizes the mutually locking of guide plate 12 and slide plate 13, and now under thrust, guide plate 12 can only be together with slide plate 13
Inwardly propulsion.
Guide plate clamping block is fixed by screws in the outside of side plate 15, has aduncate locking in guide plate clamping block lower end
Hook 4241, when body is in separation point position, the crotch 25 of button 21 crosses the guide plate clamping block on side plate and is locked hook 4234
Locking, now guide plate 12 can only be moved forward with slide plate 13 and can not be drawn out, it is achieved thereby that the locking of separation point position, when wanting
During unblock, only by pressing button 21, the crotch 25 on button 21 is set to be partially disengaged lock hook 4234, now guide plate 12 and cunning
Plate 13 can just be drawn out.
The application also includes safety baffle plate mechanism, as shown in Figure 3.On safety shield device, underframe 43, sliding block are included
44, a pair upper and lower safety screens 45,46, back-moving spring 47 and support 48, the underframe 43 has slide block chamber 49, back-moving spring
47 are placed in the spring base 50 of support, and a pair upper and lower safety screens 45,46 are overlapped and are placed on support 48, and support passes through fastener
The top of underframe 43 is fixed on, after sliding block 44 passes through a pair corresponding slider bores of upper and lower safety screen 45,46, is movably inserted
Put in slide block chamber, and contacted in back-moving spring in slide block chamber.
When the body of drawer type device for switching is from separation point position to link position, sliding block 44 is made every effort to overcome due to the effect of body
The effect of back-moving spring 47 is taken, sliding block 44 is slided towards the direction of the bottom of slide block chamber 49；Now, the upper plate cant side on sliding block 44
51 make safety screen 45 be moved to the direction of arrow in figure by the first effect for pushing away side 52, and the lower plate cant side on sliding block 44
53 make lower safety screen 46 to direction of arrow displacement in figure by pushing away the thrust on side 54 to second, so that on a pair,
Lower safety screen 45,46 can be performed relative motion in first, second slotted eye 55,56, make a pair upper and lower safety screens 45,46
First, second jack 57,58 is completely superposed, so as to the main circuit conductor of body can be made to be led with the main circuit of drawer chassis by jack
Body is engaged；When body is from link position to separation point position, body active force disappears, work of the back-moving spring 47 in own spring force
Under, the upward sliding in slide block chamber 49 of sliding block 44 is forced, similarly, since a pair upper and lower plate cant sides 51,53 on sliding block 44
Effect, a pair upper and lower safety screens 45,46 is made opposite motion in first, second slotted eye 55,56, make on a pair,
First, second jack 57,58 on lower safety screen 45,46 mutually staggers, i.e., first, second jack 57,58 is closed, body
Main circuit conductor and drawer chassis main circuit reliably isolate.
Such as the connection clip in the art of this patent of Fig. 4 for body being connected on busbar.For making device for switching sheet
The busbar of body is electrically connected on busbar, and busbar is connected on drawer chassis busbar, and the connection clip includes at least one pair of by conduction
The bridge shape engaging nail that material is constituted, two engaging nails of each pair respectively include two ends points, and the two engaging nails pass through its end
Press contact on two relative faces of body busbar and drawer chassis busbar in portion；Simultaneously by means of being engaged with the engaging nail
The effect of spring makes two engaging nails close to each other.
As shown in Figure 4, connection clip is made up of some engaging nails 61,62, body busbar 63 and is connected to taking out on busbar
Drawer seat busbar 64 is coupled together under connection clip effect, and electrical equipment body can make double into and out between two formation terminal locations
To the movement of translation.
The connection accompany it is some to engaging nail (piece) 61,62, support 65 is constituted with spring 66, each contact chip (pawl) 61,
62 make bridge shape with copper, there is ends points 67 and 68, and two ends points of pawl 67,68 are respectively used to press body busbar
The contact surface 71,72 of face 69,70 and drawer chassis busbar.
Because the connection clip is composed in parallel by multi-disc contact chip (pawl), electrical connection properties, and electronic reprimand for school building can be improved
Power, easy for installation, dependable performance, contact quality is good.
Specifically used process is as follows：
When drawer chassis is in separation point position, button 21 is pressed, realize the unblock between guide plate 12 and slide plate 13.As above institute
State：Button 21 on slide plate is arranged on the axis hole 23 above the front end of guide plate 12 by small axle 22, and can be rotated around small axle 22,
It is provided with button 21 and presses pin 24, crotch 25 has the one end of aperture for connecting spring 26 by crotch 25, upper lockplate 27 is by upper
Lock shaft 28 is arranged on front end top, the side of button 21 of guide plate 12, and can be rotated around upper lock shaft 28.In upper lock plate both sides
There is shift fork 29, spike 30, arc surface 31, the other end of spring 26 is connected on lockplate 27, spring 26 is located at guide plate 12
In spring groove 32, when the spike 30 of upper lockplate 27 touches the front end stop hook 33 of slide plate 13, and button 21 presses pin 24 by slide plate 13
The institute of gear pin 34 it is spacing, the shift fork 29 of upper lockplate 27 by button 21 press pin 24 it is spacing when, realize guide plate 12 and slide plate 13 it
Between mutually locking.Its releasing process can realize that a kind of is to press the button 21 on bottom guide 12, makes button by two kinds of operations
The shift fork 29 for pushing down upper lockplate 27 is rotated around axle 22, lockplate is rotated around upper lock shaft 28 and is made the spike 30 of the other end
Depart from the block 33 before slide plate 13 and unlock, now guide plate 12 travels forward with respect to slide plate 13, and the remains stationary of slide plate 13, it is another
It is the arc surface for pushing down upper lockplate by body when body is put into drawer chassis to plant, and lockplate 27 is revolved around upper lock shaft 28
Turn, same unblock effect is reached with button is pressed.
After unblock, pull out guide plate 12 and terminate to stroke, now the lower lockplate 35 of slide mechanism is by lower lock shaft
36 are arranged on the rear end lower section of slide plate 13, and can be rotated around lower lock shaft 36, have projection 37 in the lower end of lower lockplate 35, when
Projection 37 touches the front end of lower guideway 17, and the front end of lower lockplate 35 by the rear end lower edge 38 of guide plate 12 when being touched, can
Realize the locking of slide plate 13 and lower guideway 17.Its releasing process is：By moving inward guide plate 12, make the lower section angle 38 of guide plate 12
The front end of lower lockplate 35 is boosted, lower lockplate 35 is turned clockwise around lower lock shaft 36, so as to force the convex of lower lockplate
Block 37 departs from the front end of lower guideway 17 and unlocks slide plate 13.
Now promote guide plate 12 forward, with the unblock between guide plate 12 and slide plate 13 and slide plate 13 and lower guideway 17 it
Between unblock, the crotch 25 of button 21 being located on guide plate 12 is crossed the groove 39 of the front end of slide plate 13 and in the pulling force of spring 26
The groove 39 of slide plate 13 is caught under effect, the mutually locking of guide plate 12 and slide plate 13 is realized, now under thrust, guide plate
12 can only inwardly advance together with slide plate 13.
Assuming that body is in released state, operator rotates screw rod 5, drives base plate rack-plate to move by screw rod, with tooth
The sector gear of batten engagement drives rotating shaft to turn clockwise, and drivening rod, guide rod long, cam are rotated clockwise,
At this moment roller, as cam further turns clockwise, enters cam channel just in cam channel outermost end after roller stress
It is interior, simultaneously because a pair of rollers are integrally fixed on a pair of guide plates of slide mechanism, so roller is moved forward can drive a pair of dresses
The body carried on guide plate is pushed ahead together.When being engaged with roller due to the cam channel of the structure, forced position is close to body
The position of center of gravity, and body Up Highway UHW is close with the position of center line of making a concerted effort of tactile bridge stress on underframe, and there's almost no makes this
The tilting moment that body is rotated up, makes bus be pressed into comparison of resistance when touching bridge small.So, if operator with less power with regard to energy
The propulsion of body is realized, link position is reached；Conversely, when body switchs to separation point position by link position, only needing to reversely rotate
Screw rod, makes sector gear turn clockwise, and ibid, simply the direction of motion is opposite for operation principle.
When the body of drawer type device for switching is from separation point position to testing position, safety shield device closure, switch
Secondary circuit is connected, and can safely carry out the detection of various functions；Safety shield device is to include underframe 43, sliding block 44, one
To upper and lower safety screen 45,46, back-moving spring 47 and support 48, the underframe 43 have slide block chamber 49, and back-moving spring 47 is placed in
In the spring base 50 of support, a pair upper and lower safety screens 45,46 are overlapped and are placed on support 48, and support is fixed on by fastener
The top of underframe 43, sliding block 44 is movably planted through after the corresponding slider bore 59,60 of a pair upper and lower safety screens 45,46
In slide block chamber, and contacted in back-moving spring in slide block chamber.
When the body of drawer type device for switching is moved from testing position to link position, sliding block 44 is due to the effect of body
Power overcomes the effect of back-moving spring 47, sliding block 44 is slided towards the direction of the bottom of slide block chamber 49；Now, the upper plate on sliding block 44 is oblique
The direction of arrow is moved in pushing away when 51 push away by first 52 effect and making upper safety screen 45 to figure, and the lower plate on sliding block 44 is oblique
Push away while 53 by being pushed away to second while 54 thrust and direction of arrow displacement in making lower safety screen 46 to figure so that a pair
Upper and lower safety screen 45,46 can be performed relative motion in first, second slotted eye 55,56, make a pair upper and lower safety screens 45,46
First, second jack 57,58 be completely superposed, so as to the main circuit of the main circuit conductor of body by jack and drawer chassis can be made
Conductor is engaged, i.e., be connected with connection clip, the bridge shape engaging nail that the connection clip is constructed from a material that be electrically conducting including at least one pair of, each pair
Two engaging nails respectively include two ends points, and the two engaging nails press body busbar by its ends points and drawer chassis is female
On two relative faces of row；Effect by means of the spring being engaged with the engaging nail simultaneously makes two engaging nails mutually lean on
Closely.
As shown in Figure 4, connection clip is made up of some engaging nails 61,62, body busbar 63 and is connected to taking out on busbar
Drawer seat busbar 64 is coupled together under connection clip effect, and electrical equipment body can make double into and out between two formation terminal locations
To the movement of translation.
The connection accompany it is some to engaging nail (piece) 61,62, support 65 is constituted with spring 66, each contact chip (pawl) 61,
62 make bridge shape with copper, there is ends points 67 and 68, and two ends points of pawl 67,68 are respectively used to press body busbar
The contact surface 71,72 of face 69,70 and drawer chassis busbar.
Because the connection clip is composed in parallel by multi-disc contact chip (pawl), electrical connection properties, and electronic reprimand for school building can be improved
Power, easy for installation, dependable performance, contact quality is good.
Otherwise when body is from link position to testing position, body active force disappears, and back-moving spring 47 is in itself spring
In the presence of power, the upward sliding in slide block chamber 49 of sliding block 44 is forced, similarly, since a pair upper and lower plate cants on sliding block 44
The effect on side 51,53, enables a pair upper and lower safety screens 45,46 to make opposite motion in first, second slotted eye 55,56, makes
First, second jack 57,58 on a pair upper and lower safety screens 45,46 mutually staggers, i.e., first, second jack 57,58 is closed
Close, the main circuit conductor of body is reliably isolated with drawer chassis main circuit.
Claims (10)
1. a kind of device for switching drawer chassis, including：
Drawer chassis framework；
Electrical connection mechanism, in drawer chassis framework, for the main circuit of connecting valve electrical equipment body；
Characterized in that, also including：
Slide mechanism, in drawer chassis framework, for the fixation and turnover of device for switching body；
Transmission device, is connected in drawer chassis framework and with slide mechanism, for driving slide mechanism to drive device for switching sheet
Body is passed in and out.
2. a kind of device for switching drawer chassis according to claim 1, it is characterised in that the transmission device includes：
Rotating shaft (1), which is provided with multiple sector gears (3)；
Drive link group, one end is connected with rotating shaft, and the other end is connected with slide mechanism, for driving skate machine in the rotation of rotating shaft
Structure is moved；
Rack-plate (4), which is provided with multiple tooth bars of engagement corresponding with multiple sector gears (3) respectively；
Screw rod (5), is connected with rack-plate (4), for driving rack-plate (4) to slide, then drives axis of rotation.
3. a kind of device for switching drawer chassis according to claim 2, it is characterised in that the sector gear (3) sets altogether
There are two, the rack-plate (4) is provided with two tooth bars.
4. a kind of device for switching drawer chassis according to claim 2, it is characterised in that the drive link group is provided with two altogether
Individual, any drive link group includes the connecting rod (7) that is sequentially connected, guide rod (8) long and cam (9), two connecting rods (7) respectively with rotating shaft
(1) two ends connection, the cam (9) is connected with slide mechanism.
5. a kind of device for switching drawer chassis according to claim 2, it is characterised in that the radius of the sector gear with
The ratio between radius of rotating shaft is at least 2.
6. a kind of device for switching drawer chassis according to claim 4, it is characterised in that the company of described two cams (9)
Center of gravity of the line through device for switching body.
7. a kind of device for switching drawer chassis according to claim 4, it is characterised in that the guide rod (8) long and cam
(9) center of rotation of the tie point higher than cam (9).
8. a kind of device for switching drawer chassis according to claim 4, it is characterised in that the drawer chassis framework includes two
Block side plate (15), the slide mechanism include being respectively arranged on two blocks of side plates and respectively it is corresponding with two cams (9) connect two
Individual sliding unit, the sliding unit includes upper rail (16) and lower guideway (17), and located at upper rail (16) and lower guideway
(17) guide plate (12) that slide plate (13) and slide plate (13) between are slidably connected, the slide plate (13) respectively with upper rail (16)
It is slidably connected with lower guideway (17), the guide plate (12) is for connecting valve electrical equipment body.
9. a kind of device for switching drawer chassis according to claim 8, it is characterised in that the slide mechanism also includes using
In locking guide plate (12) and the upper locking module of slide plate (13), the upper locking module includes button (21), spring (26), locks
Fixed board (27) and upper lock shaft (28), the button (21) is provided with presses pin (24), the crotch (25) with crotch (25)
One end with the spring (26) is connected, and the other end of the spring (26) is connected with upper lockplate (27), the upper lockplate
(27) both sides are provided with fork (29), spike (30), and the slide plate (13) is provided with front end stop hook (33) and gear pin (34), it is described on
Lock shaft (28) is fixed on slide plate (13).
10. a kind of device for switching drawer chassis according to claim 9, it is characterised in that the slide mechanism also includes
Lower locking module, the lower locking module includes lower lockplate (35), lower lock shaft (36), the excessively lower lock of the lower lockplate (35)
Dead axle (36) is installed in the rear end lower section of slide plate (13), and lower lockplate (35) lower end has projection (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621364897.7U CN206313347U (en) | 2016-12-13 | 2016-12-13 | A kind of device for switching drawer chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621364897.7U CN206313347U (en) | 2016-12-13 | 2016-12-13 | A kind of device for switching drawer chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313347U true CN206313347U (en) | 2017-07-07 |
Family
ID=59251419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621364897.7U Active CN206313347U (en) | 2016-12-13 | 2016-12-13 | A kind of device for switching drawer chassis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206313347U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451175A (en) * | 2016-12-13 | 2017-02-22 | 东莞同济大学研究院 | Drawer holder for switchgear |
| CN110993394A (en) * | 2019-12-16 | 2020-04-10 | 苏州飞腾电器有限公司 | Draw-out type automatic change-over switch with bypass |
| CN111801862A (en) * | 2018-03-07 | 2020-10-20 | 三菱电机株式会社 | Pull-out type circuit breaker |
-
2016
- 2016-12-13 CN CN201621364897.7U patent/CN206313347U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451175A (en) * | 2016-12-13 | 2017-02-22 | 东莞同济大学研究院 | Drawer holder for switchgear |
| CN111801862A (en) * | 2018-03-07 | 2020-10-20 | 三菱电机株式会社 | Pull-out type circuit breaker |
| CN110993394A (en) * | 2019-12-16 | 2020-04-10 | 苏州飞腾电器有限公司 | Draw-out type automatic change-over switch with bypass |
| CN110993394B (en) * | 2019-12-16 | 2021-09-03 | 苏州飞腾电器有限公司 | Draw-out type automatic change-over switch with bypass |
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