CN201820662U

CN201820662U - Lock hook structure for interlocking device at rear door of high-tension switch cabinet

Info

Publication number: CN201820662U
Application number: CN2010205424322U
Authority: CN
Inventors: 王敏; 高中山
Original assignee: Wankong Electrical (tianjin) Co Ltd
Current assignee: Wankong Electrical (tianjin) Co Ltd
Priority date: 2010-09-26
Filing date: 2010-09-26
Publication date: 2011-05-04
Anticipated expiration: 2020-09-26

Abstract

The utility model relates to a lock hook structure for an interlocking device at a rear door of a high-tension switch cabinet. The lock hook structure comprises a lock hook frame installed on the rear door and a lock rod installed on a cabinet body, wherein the lock hook frame is provided with a notch or bayonet with an downward opening; the lock rod is articulated with a lock hook, the hook head of the lock hook is upward, two base angles of a hook body of the lock hook is provided with arc-shaped outer edges; and the lock hook is provided with a supporting seat, the stand plate part of the supporting seat forms a U-shaped lock hook groove, and the lock rod is erected on the cabinet body by the supporting seat. In the utility model, the structures, positions and shapes of the rear door and a ground switch operation shaft are not required to change, which is convenient to upgrade and reconstruct the existing high-tension switch cabinet; and in addition, because two devices which enable the lock rod to shift toward the outside of the cabinet door are designed, one of the devices is a spring between the lock rod and the supporting seat, and the other device is arranged among the lock hook frame, the lock hook, the lock hook groove and the push rod and is matched to pull the lock rod outside of the door when the door is opened. When driving components such as the spring and the like are ageing, the lock rod can still be pulled outside of the door when the door is opened.

Description

A kind of back door interlocking device of high-tension switch cabinet latch hook structure

Technical field

The utility model belongs to power supply control field, relates to a kind of high-tension switch cabinet, particularly relates to a kind of back door interlocking device of high-tension switch cabinet latch hook structure.

Background technology

In the high-low pressure voltage switchgear, for preventing misoperation and mistakenly entering charged chamber, the open and close that come limit switch cabinet cabinet door by the earthed switch operating axis usually.

At present, the technical scheme that is used for earthed switch operating axis limit switch cabinet cabinet door switch, usually in the operating side of earthed switch operating axis locking part is set, support on the back door of locking part and switch cubicle matches, be typically provided with draw-in groove or the hole adaptive with locking part on the support, locking part rotates to the ground connection cutter when being in the position of separating brake with the earthed switch operating axis, makes that the draw-in groove on locking part and the support constitutes clamping, switching manipulation this moment axle can't rotate, and the switch cubicle back door can't be opened; When the earthed switch operating axis rotated to ground state, the draw-in groove on locking part and the support broke away from, and the switch cubicle back door can be opened.

In the above-mentioned technical scheme, the clamping of back door and locking part, usually need to rotate locking part, if it is not in place that locking part rotates, or the long-term loosening or offset of using the back locking part to produce, the phenomenon that will cause the back door not open is if this moment, brute force was drawn the back door, can cause distortion or damage to locking part, make the back door more can't open.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, the latch hook structure, make things convenient for the switch at back door.

The technical scheme that the utility model is taked is:

A kind of back door interlocking device of high-tension switch cabinet latch hook structure comprises it is characterized in that latch hook frame that is installed on the back door and the locking bar that is installed on the cabinet: be shaped on draw-in groove or the bayonet socket that Open Side Down on the described latch hook frame 1; Be hinged with latch hook 2 on the described locking bar 4, the gib head of latch hook 2 makes progress, and two base angles of latch hook 2 coupler bodies have the arc outer rim; At the latch hook place bearing 3 is installed, the vertical plate part of bearing 3 divides and forms U-shaped lock hook slot 31, and bearing 3 is contained in locking lever frame on the cabinet.

Further, also include bearing 5, bearing 5 cooperates with bearing 34 of locking bars is contained on the cabinet, between bearing 5 and the locking bar 4 spring 6 is installed, and the elastic force of spring 6 makes locking bar 4 to back door direction displacement.

The beneficial effects of the utility model are:

1, latch hook of the present utility model mechanism does not need structure, position and the profile of back door and earthed switch operating axis are changed, and is convenient to existing high-tension switch cabinet is upgraded and transformed.

2, the utility model has designed two and makes locking bar to the cabinet device of direction displacement outdoors, the one, the spring between locking bar and the bearing 5; The 2nd, being engaged in when opening the door locking bar between latch hook frame, latch hook, lock hook slot and the push rod to pulling out outdoors.When drive disk assemblies such as spring are aging, still can be when opening the door with locking bar to pulling out outdoors.

Description of drawings

The utility model structural representation when Fig. 1 opens for the back door

The utility model structural representation when Fig. 2 closes for the back door

Embodiment

The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection range of the present utility model with this.

As shown in Figure 1, the utility model comprises the latch hook frame 1 that is installed on the back door and is installed in locking bar 4, bearing 3, bearing 5, spring 6, latch hook 2 on the cabinet.Wherein be shaped on draw-in groove or the bayonet socket that cooperates with latch hook 2 on the latch hook frame, Open Side Down for draw-in groove or bayonet socket; Wherein locking bar is installed on the cabinet by bearing 3, bearing 5, and mounting spring 6 between bearing 5 and the locking bar, and the elastic force of spring makes locking bar to back door direction displacement.Latch hook 2 is hinged on the locking bar 4, puts correspondingly with the latch hook chord position on the back door, and the gib head of latch hook 2 upwards.Locking bar between the end of the articulated position of locking bar 4 and latch hook 2 and locking bar 4 partly forms push rod 32.The vertical plate part of bearing 3 divides formation U-shaped lock hook slot 31, and two base angles of latch hook 2 coupler bodies have the arc outer rim, make things convenient for latch hook to slip into lock hook slot.

In force, the front and back displacement that drives locking bar 4 by the latch hook frame passes to corresponding interlocking device, the interlocked control of the ground switching manipulation axle that achieves a butt joint with the on off state at back door.

When opening the back door, rotation earthed switch operating axis makes earthed switch be in "on" position earlier, guarantees the fail safe of operation.After the earthed switch operating axis is rotated, open the back door again, as shown in Figure 1, latch hook frame 1 is pulled out latch hook 2 from the U-shaped lock hook slot 31 of bearing 3, latch hook 2 breaks away from latch hook frame 1, and this moment, the elastic force of spring made locking bar 4 vertically to the cabinet outer displacement, drives the achieve a butt joint locking of ground switching manipulation axle of corresponding interlocking device, guarantee that earthed switch is in "on" position, has guaranteed security performance.Because interlock has been used transmission devices such as latch hook, locking bar, make the position of latch hook can not cause displacement or skew simultaneously, guaranteed the stability of single unit system, the phenomenon of not opening in the back door can not take place because of long-term the use.

When closing back door, as shown in Figure 2, latch hook frame 1 withstands push rod 32 parts of locking bar 4, makes locking bar 4 to the cabinet intrinsic displacement, drives latch hook 2 and is retracted in the lock hook slot 31, and latch hook 2 and latch hook frame 1 fasten.In the time of closing back door, the displacement of locking bar 4 drives the achieve a butt joint release of ground switching manipulation axle of corresponding interlocking device, and this moment, the earthed switch operating axis can freely rotate.

More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limit practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.

Claims

1. a back door interlocking device of high-tension switch cabinet latch hook structure comprises it is characterized in that latch hook frame that is installed on the back door and the locking bar that is installed on the cabinet: be shaped on draw-in groove or the bayonet socket that Open Side Down on the described latch hook frame (1); Be hinged with latch hook (2) on the described locking bar (4), the gib head of latch hook (2) makes progress, and two base angles of latch hook (2) coupler body have the arc outer rim; Bearing (3) is installed at the latch hook place, and the vertical plate part of bearing (3) divides formation U-shaped lock hook slot (31), and bearing (3) is contained in locking lever frame on the cabinet.

2. latch hook structure according to claim 1, it is characterized in that: also include bearing (5), bearing (5) cooperates with bearing (3) locking bar (4) frame is contained on the cabinet, between bearing (5) and the locking bar (4) spring (6) is installed, the elastic force of spring (6) makes locking bar (4) to back door direction displacement.