CN220065478U - Earthing switch separating and combining interlocking mechanism - Google Patents

Abstract

The utility model discloses a grounding switch opening and closing interlocking mechanism which comprises a grounding switch operating shaft, a direct-pulling lock, a shaft sleeve, a transmission mechanism, a mechanism supporting frame and a middle-layer box, wherein the six mechanisms are combined to be used for playing roles, the whole transmission mechanism is simple, parts are few, the processing and maintenance costs are low, the possibility of misoperation of the grounding switch is reduced through the cooperation of the direct-pulling lock, the transmission mechanism and the shaft sleeve, and meanwhile, the occurrence of personnel injury or equipment damage caused by misoperation is also reduced.

Description

Earthing switch separating and combining interlocking mechanism

Technical Field

The utility model relates to the field of grounding switches, in particular to a grounding switch opening and closing interlocking mechanism.

Background

With the development of economic construction, the demand for electricity is becoming higher and higher. Is influenced by the quantity and energy of operation and maintenance personnel, and further promotes the deep research of each disc factory in the electricity safety field.

A ground switch is a mechanical switching device used to intentionally ground a circuit. The grounding switch can bear specified rated short-circuit current and corresponding peak current in a specified time under abnormal conditions (such as short circuit); but under normal operating conditions is not required to carry rated current. The ground switch and the disconnector are often combined into one device for use. At this time, the disconnecting switch is provided with a grounding switch in addition to the main contact for grounding one end of the disconnecting switch after opening the switch. The main contact and the ground switch are typically mechanically interlocked in such a way that the ground switch cannot be closed when the disconnector is closed and the main contact cannot be closed when the ground switch is closed. The grounding switch can be divided into an open type and a closed type according to the structural form. The conductive system of the former is exposed to the atmosphere like the earthing knife switch of a disconnecting switch, and the conductive system of the latter is enclosed in an insulating medium filled with SF or oil.

Chinese patent publication No. CN217822534U discloses an operating mechanism for isolating a grounding switch and isolating a grounding switch. The operating mechanism comprises: a driving module; a drive module comprising first, second and third mechanical drive chains, the first and third mechanical drive chains sharing a drive spindle, the second and third mechanical drive chains being arranged in parallel; an auxiliary switch module including an auxiliary switch and a triggering part; a signal module comprising a signal unit and a trigger member. The driving module drives the isolating grounding switch to move between a switching-off position and a switching-on position through a first mechanical transmission chain, triggers the auxiliary switch to generate a first indicating signal for indicating the switching-on and switching-off position of the isolating grounding switch through a second mechanical transmission chain, and drives the triggering member to rotate around the axis of the transmission main shaft through a third mechanical transmission chain to trigger the signal unit to generate a second indicating signal for indicating the switching-on and switching-off position of the isolating grounding switch. The operating mechanism can provide non-homologous property opening and closing indicating signals and is simple in structure.

In summary, the existing grounding switch has some drawbacks, such as that during the use process, the operator still has a situation of misoperation of the grounding switch, and further, the situation of injury to the operator or damage to the equipment is easily caused.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a grounding switch opening and closing interlocking mechanism to solve the problems.

In order to achieve the above object, the present utility model is achieved by the following technical scheme.

The utility model provides a earthing switch divides and closes interlocking mechanism, includes earthing switch operating shaft, direct pulling lock, axle sleeve, drive mechanism, mechanism support frame, middle level box, the epaxial cover of earthing switch operating is equipped with the axle sleeve, drive mechanism one end butt joint axle sleeve, and direct pulling lock is connected to the other end, be equipped with the through hole on the mechanism support frame, and drive mechanism can be at the through hole internal activity, direct pulling lock is fixed on middle level box, and whole set of drive mechanism is simple and easy, and spare part is few, and processing and maintenance cost are low, has reduced the possibility of maloperation earthing switch through the cooperation of direct pulling lock, drive mechanism, axle sleeve three, has also reduced the condition emergence that personnel injury or equipment damage brought because the maloperation simultaneously.

Preferably, the shaft sleeve is provided with a plurality of limiting holes.

Preferably, the shaft sleeve is provided with two groups of limiting holes.

Preferably, the limiting hole is cylindrical.

Preferably, the limiting hole is polygonal.

Preferably, the transmission mechanism comprises a transmission A shaft, a transmission B shaft, a connection A piece and a connection B piece.

Preferably, the transmission mechanism is provided with two groups.

Preferably, the transmission A shaft, the transmission B shaft, the connection A piece and the connection B piece are connected in sequence in a rotatable and movable mode.

Preferably, the head of the other end of the transmission A shaft corresponds to the limiting hole.

Preferably, the other end of the transmission B shaft is also connected with a direct-pulling lock.

Compared with the prior art, the utility model discloses a grounding switch opening and closing interlocking mechanism, which comprises a grounding switch operating shaft, a direct-pulling lock, a shaft sleeve, a transmission mechanism, a mechanism supporting frame and a middle layer compartment, wherein the six mechanisms are combined with each other to play a role,

(1) the whole set of transmission mechanism is simple, the parts are few, and the processing and maintenance cost is low;

(2) the possibility of misoperation of the grounding switch is reduced through the cooperation of the direct-pulling lock, the transmission mechanism and the shaft sleeve, and meanwhile, the occurrence of personnel injury or equipment damage caused by misoperation is also reduced.

Drawings

FIG. 1 is a schematic diagram of a switch-on/switch-off interlocking mechanism of the present utility model;

fig. 2 is a schematic structural view of the transmission mechanism, the shaft sleeve and the direct-pulling lock of the utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

The utility model provides a earthing switch divides and closes interlocking mechanism, includes earthing switch operating shaft 1, directly pulls out lock 2, axle sleeve 3, drive mechanism 4, mechanism support frame 5, middle level box 6, the cover is equipped with axle sleeve 3 on the earthing switch operating shaft 1, drive mechanism 4 one end butt joint axle sleeve 3, and direct pull out lock 2 is connected to the other end, be equipped with the through-hole on the mechanism support frame 5, and drive mechanism 4 can be at the through-hole internal activity, direct pull out lock 2 is fixed on middle level box 6.

Be equipped with a plurality of spacing holes 31 on the axle sleeve 3, be equipped with two sets of spacing holes 31 on the axle sleeve 3, spacing hole 31 is cylindrical, spacing hole 31 is the polygon, drive mechanism 4 includes drive A axle 41, drive B axle 42, connects A piece 43, connects B piece 44, drive mechanism 4 is equipped with two sets of, drive A axle 41, drive B axle 42, connect A piece 43, connect B piece 44 four rotatable swing joint in proper order, the other end head of drive A axle 41 corresponds with spacing hole 31, the other end of drive B axle 42 still is connected with direct-pull lock 2.

The grounding switch operation shaft 1 is additionally provided with a shaft sleeve 3, the middle-layer box 6 is additionally provided with two direct-pulling locks 2, the direct-pulling locks 2 are connected with the transmission mechanism 4, and when the grounding switch is separated, the direct-pulling locks 2 enter the limiting holes 31 to lock the separated position and the combined position of the grounding switch respectively when the grounding switch is rotated, so that misoperation of the grounding switch is prevented.

When the grounding switch is switched on and off, the rotation angle of the grounding switch operation shaft 1 is 90 degrees, the limiting holes 31 are respectively formed in the shaft sleeve 3 on the grounding switch operation shaft 1 at the switching angle positions corresponding to the grounding switch of the transmission mechanism 4, and when the grounding switch is switched on and off, the corresponding direct-pull lock 2 is operated so as to lock the switching position and the switching position of the grounding switch respectively, and the grounding switch cannot be operated without unlocking the direct-pull lock 2.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a earthing switch divides to close interlocking mechanism which characterized in that: including earthing switch operating shaft (1), direct-pulling lock (2), axle sleeve (3), drive mechanism (4), mechanism support frame (5), middle level box (6), the cover is equipped with axle sleeve (3) on earthing switch operating shaft (1), direct-pulling lock (2) are connected to drive mechanism (4) one end butt joint axle sleeve (3), are equipped with through-hole on mechanism support frame (5), and drive mechanism (4) can be at the through-hole internal activity, direct-pulling lock (2) is fixed on middle level box (6).

2. The earthing switch on-off interlocking mechanism of claim 1, wherein: the shaft sleeve (3) is provided with a plurality of limiting holes (31).

3. The earthing switch on-off interlocking mechanism of claim 2, wherein: two groups of limiting holes (31) are formed in the shaft sleeve (3).

4. A grounding switch opening and closing interlocking mechanism as in claim 3, wherein: the limiting hole (31) is cylindrical.

5. The earthing switch on-off interlocking mechanism of claim 4, wherein: the limiting hole (31) is polygonal.

6. The earthing switch on-off interlocking mechanism of claim 5, wherein: the transmission mechanism (4) comprises a transmission A shaft (41), a transmission B shaft (42), a connection A piece (43) and a connection B piece (44).

7. The earthing switch on-off interlocking mechanism of claim 6, wherein: the transmission mechanism (4) is provided with two groups.

8. The earthing switch on-off interlocking mechanism of claim 7, wherein: the transmission A shaft (41), the transmission B shaft (42), the connection A piece (43) and the connection B piece (44) are connected in sequence in a rotatable and movable mode.

9. The earthing switch on-off interlocking mechanism of claim 8, wherein: the head of the other end of the transmission A shaft (41) corresponds to the limit hole (31).

10. The earthing switch on-off interlocking mechanism of claim 9, wherein: the other end of the transmission B shaft (42) is also connected with the direct pulling lock (2).