A kind of circuit breaker chassis of middle gate interlock
Technical field
The utility model relates to a kind of circuit breaker chassis, is specifically related to a kind of circuit breaker chassis of middle gate interlock.
Background technology
Chassis vehicle on switch cubicle, generally include end carriage, chassis vehicle vehicle frame, cabinet door, operating grip and handle frame, this end carriage is provided with screw mandrel, this chassis vehicle vehicle frame to be slidably connected on end carriage and to be provided with nut, this nut is screwed onto on screw mandrel, to make to drive the relative end carriage slide anteroposterior of chassis vehicle vehicle frame by screw mandrel rotational.This cabinet door can end carriage be in activity between position and opening position of closing the door relatively, and described handle frame is sheathed on screw mandrel.When circuit breaker switch cabinet cabinet door is opened, door-closing interlock mechanism is in Interlock Status, handle frame is interlocked by door-closing interlock mechanism, can not press down, operating grip cannot insert, cannot adaptive screw mandrel, therefore operating grip cannot drive screw mandrel to rotate, now chassis vehicle vehicle frame cannot advance, release, ensure operator's safety with this, and when door of switch cabinet is closed, operating grip can by through hole reserved on door of switch cabinet pressing handle frame, operating grip is matched with screw mandrel, chassis vehicle vehicle frame can be driven along the slippage of screw mandrel axis direction.Door-closing interlock mechanism in the market generally adopts crutches arm mechanism to realize, this spline structure is too complicated, and interlocking device moves easy clamping stagnation, and interlocking effect is not satisfactory, and after the chassis vehicle to buy without interlocking device as client, need interlocking device be installed additional more difficult.
Summary of the invention
Too complicated for solving chassis vehicle interlocking device in background technology, install troublesome problem, the utility model provides a kind of circuit breaker chassis of middle gate interlock.
The technical solution of the utility model is: a kind of circuit breaker chassis of middle gate interlock, comprise end carriage, screw mandrel, handle, handle frame and car body, described screw mandrel is located on car body through end carriage, described handle frame coordinates along the slippage of screw mandrel axis direction with screw mandrel, the first state when described handle frame has an installation and the second place making handle and screw mandrel be linked after being pressed by handle, described end carriage is provided with interlock, described interlock comprises housing, slide block is provided with in described housing, drive plate and the propulsion arm suitable with door of switch cabinet to be installed, described slide block is provided with limiting section and through hole, described propulsion arm drives slide block slippage in housing by drive plate, when described slide block has an installation, limiting section protrudes and to be located at primary importance that handle frame rear makes handle frame limited outside housing and to be driven the second place made in limiting section retraction housing by drive plate.
Improve as one of the present utility model, described drive plate comprises the first press section, the second press section and articulated section, described articulated section by hinge in housing, the first described press section and the press-fit of pushing tow masthead, the second described press section and the press-fit of slide block top.
As further improvement of the utility model, the top of slide block is located in described articulated section, fits in the through hole that slide block is inserted in described second press section with slide block inwall.
As further improvement of the utility model, the first described press section is provided with the first arcuate segments, and the second described press section is provided with the second arcuate segments.
As further improvement of the utility model, described housing comprises upper cover and base, and described base is provided with the containing cavity of accommodating drive plate and slide block, and described propulsion arm is located at the top of drive plate and is passed upper cover.
As further improvement of the utility model, described slide block is provided with guide part, and described guide part is provided with back-moving spring, and one end and the slide block of described back-moving spring offset, and the other end and inner walls offset.
As further improvement of the utility model, described slide block is recessed to form the gap slot for accommodating back-moving spring in guide part position to through hole direction.
As further improvement of the utility model, described interlock has two, and two described interlocks are symmetricly set on end carriage about screw mandrel axis.
As further improvement of the utility model, described interlock and end carriage removably connect.
The beneficial effects of the utility model are, bear down on one push rod on door of switch cabinet closedown top, propulsion arm makes the limiting section of slide block can to the second place from primary importance lock by drive plate pressing slide block, thus make handle can make handle and screw mandrel reliable fit by secure pressed handle frame, the utility model realizes door-closing interlock, and structure is simple, and interlocking is reliable, quick, the effective guarantee safety of operating personnel, avoids, because of misoperation, security incident occurs.The utility model also has the advantages such as structure is simple, easy accessibility, interlocking are reliable.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model embodiment.
Accompanying drawing 2 is the structural representation at end carriage 1 place in accompanying drawing 1.
Accompanying drawing 3 is the structural representation of interlock 6 in this accompanying drawing 2.
What accompanying drawing 4 was accompanying drawing 3 partly cuts open structural representation.
Accompanying drawing 5 is the explosive view of accompanying drawing 3.
In figure, 1, end carriage; 2, screw mandrel; 3, handle; 4, handle frame; 5, car body; 6, interlock; 61, housing; 611, upper cover; 612, base; 6121, containing cavity; 62, slide block; 621, limiting section; 622, through hole; 623, guide part; 624, back-moving spring; 625, gap slot; 63, drive plate; 631, the first press section; 6311, the first arcuate segments; 632, the second press section; 6321, the second arcuate segments; 633, articulated section; 634, bearing pin; 64, propulsion arm.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
By Fig. 1 composition graphs 2, 3, 4, shown in 5, a kind of circuit breaker chassis of middle gate interlock, comprise end carriage 1, screw mandrel 2, handle 3, handle frame 4 and car body 5, described screw mandrel 2 is located on car body 5 through end carriage 1, described handle frame 4 coordinates along the slippage of screw mandrel 2 axis direction with screw mandrel 2, the first state when described handle frame 4 has an installation and the second place making handle 3 and screw mandrel 2 be linked after being pressed by handle 3, described end carriage 1 is provided with interlock 6, described interlock 6 comprises housing 61, slide block 62 is provided with in described housing 61, drive plate 63 and the propulsion arm 64 suitable with door of switch cabinet to be installed, described slide block 62 is provided with limiting section 621 and through hole 622, described propulsion arm 64 drives slide block 62 slippage in housing 61 by drive plate 63, when described slide block 62 has an installation, limiting section 621 protrudes and is located at handle frame 4 rear (referring to accompanying drawing 2) outside housing 61 and makes the limited primary importance of handle frame 4 and driven the second place that limiting section 621 is retracted in housing 61 by drive plate 63.The beneficial effects of the utility model are, bear down on one push rod on door of switch cabinet closedown top, propulsion arm makes the limiting section of slide block can to the second place from primary importance lock by drive plate pressing slide block, thus make handle can make handle and screw mandrel reliable fit by secure pressed handle frame, the utility model realizes door-closing interlock, and structure is simple, and interlocking is reliable, quick, the effective guarantee safety of operating personnel, avoids, because of misoperation, security incident occurs.The utility model also has the advantages such as structure is simple, easy accessibility, interlocking are reliable.
Described drive plate 63 comprises the first press section 632, press section 631, second and articulated section 633, described articulated section 633 is hinged in housing 61 by bearing pin 634, press-fit is pushed up with propulsion arm 64 in the first described press section 631, and press-fit is pushed up with slide block 62 in the second described press section 632.Such structure makes drive plate can drive slide block movement reliably, thus makes limiting section stable movement reliable.
The top (referring to accompanying drawing 4) of slide block 62 is located in described articulated section 633, fits in the through hole 622 that slide block 62 is inserted in the second described press section 632 with slide block 62 inwall.Such structure makes the second press section can play certain guide effect to the slippage of slide block, makes skid reliable simultaneously.
The first described press section 631 is provided with the first arcuate segments 6311, and the second described press section 632 is provided with the second arcuate segments 6321.Such structure makes drive plate reliable in action, reduces pressing force, reduces friction.
Described housing 61 comprises upper cover 611 and base 612, and described base 612 is provided with the containing cavity 6121 of accommodating drive plate 63 and slide block 62, and described propulsion arm 64 is located at the top of drive plate 63 and is passed upper cover 611.Such structure makes product dismounting, easy to maintenance.
Described slide block 62 is provided with guide part 623, and described guide part 623 is provided with back-moving spring 624, and one end and the slide block 62 of described back-moving spring 624 offset, and the other end and housing 61 inwall offset.Described slide block 62 is recessed to form the gap slot 625 for accommodating back-moving spring 624 in guide part 623 position to through hole 622 direction.The installation of back-moving spring is convenient in the setting of gap slot, the friction of back-moving spring and guide part in minimizing work simultaneously, and slide block stable action is reliable, resets fast.
Described interlock 6 has two, and two described interlocks 6 are arranged on end carriage 1 about screw mandrel 2 axisymmetrical.Such structure makes handle frame reliably spacing, and security performance is good.
Described interlock 6 removably connects with end carriage 1.Such structure can need dismounting interlock according to client, makes client have more selection, can reduce production cost simultaneously.
Every technical staff's notice: although the utility model describes according to above-mentioned embodiment; but invention thought of the present utility model is not limited in this utility model; the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.