CN210607024U - Isolation contact with safety padlock structure - Google Patents

Abstract

The utility model provides an isolation contact with safe padlock structure, including the contact base that the looks pin joint set up with touch the bridge seat, still include the ejector pin, touch and be equipped with first fixed part on the bridge seat, be equipped with connecting portion on the ejector pin, the ejector pin pass through connecting portion detachable fixed connection in touch the first fixed part of bridge seat, and under the fixed connection's of first fixed part and connecting portion state, the bottom of ejector pin is contradicted on the contact base, makes touch the bridge seat and keep certain opening angle with the contact base to keep touching the separation of bridge seat and contact base. The isolating switch can be effectively kept at the position of switching-off, and switching-on under the impact of mistaken collision or other foreign objects is prevented.

Description

Isolation contact with safety padlock structure

Technical Field

The utility model relates to an keep apart the contact field, concretely relates to keep apart contact with safe padlock structure.

Background

The isolation contact is the most used electrical appliance in the switching electrical appliances, the working principle and the structure of the isolation contact are simple, but the use amount is large, the requirement on the working reliability is high, the influence on the design, the establishment and the safe operation of a substation and a power plant is large, the isolation contact has the main function of establishing a reliable insulation gap after the opening, and the arrangement or the circuit needing to be overhauled is separated from a power supply by an obvious disconnection point so as to ensure the safety of overhauling personnel and equipment.

When needing to overhaul promptly, the maintainer will keep apart the contact separating brake, makes the circuit disconnection, overhauls again, and during the maintenance, personnel can leave the isolation contact, simultaneously, generally can set up on the isolation contact if "overhaul, do not close a floodgate" etc. and mark to prevent someone to close a floodgate. Although the setting of the indication can avoid the switching-on action of other persons in the main consciousness, the setting of the indication cannot avoid the switching-on of other persons under the accidental mistaken collision or the collision of other foreign objects, which is extremely dangerous for the maintainer who is being overhauled.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides an keep apart contact with safe padlock structure can effectually make and keep apart the position that the contact kept at the separating brake, prevents that the mistake from bumping or other foreign object's striking and closing a floodgate down.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

the utility model provides an keep apart contact with safe padlock structure, includes the contact base that the looks pin joint set up and touches the bridge seat, still includes the ejector pin, it is equipped with first fixed part on the bridge seat to touch, be equipped with connecting portion on the ejector pin, the ejector pin pass through connecting portion detachable fixed connection in touch the first fixed part of bridge seat, and under the fixed connection's of first fixed part and connecting portion state, the bottom of ejector pin is contradicted on the contact base, makes touch the bridge seat and keep certain opening angle with the contact base to keep touching the separation of bridge seat and contact base.

Further, the connecting portion of ejector pin is including seting up the joint recess on the ejector pin, the first fixed part that touches the bridge seat is including being formed at the connection side that touches on the bridge seat, the joint recess detachable joint of ejector pin is on touching the connection side of bridge seat.

Further, the connecting portion of ejector pin still includes the first connecting hole of seting up on the ejector pin, the first fixed part that touches the bridge seat still includes the second connecting hole of seting up on the connection side, the joint recess joint of ejector pin is when the connection side that touches the bridge seat is served, first connecting hole and second connecting hole are corresponding to insert through a bolt spare and establish the connection.

Furthermore, the connection side end has the lateral wall that sets up outwards and is located upper surface and the lower bottom surface of lower extreme on the lateral wall respectively, the joint recess of ejector pin is from the lateral wall joint of connection side end the connection side end, the upper surface arch of connecting the side end is equipped with a lug, the second connecting hole is seted up on the lug, be equipped with a "U" shape seat on the ejector pin, first connecting hole is seted up on the lateral wall of "U" shape seat, "U" shape seat cup joints on the lug that touches the bridge seat, and the inside and outside of lug is corresponding respectively to two lateral walls of "U" shape seat.

Furthermore, under the fixed connection state of first fixed part and connecting portion, the terminal surface that the ejector pin is contradicted on the contact base is the plane.

Further, still be equipped with the second fixed part that is used for fixed ejector pin on the touch bridge seat under the state of the fixed ejector pin of second fixed part, first fixed part and connecting portion break away from the connection, the conflict to the contact base is cancelled to the ejector pin.

Furthermore, the contact bridge base is provided with a connecting side end, the second fixing portion comprises a storage groove arranged on the connecting side end, and the ejector rod is placed on the storage groove of the connecting side end in the state that the ejector rod is fixed by the second fixing portion.

Furthermore, the second fixing portion further comprises a convex column arranged at the connecting side end, the ejector rod is further provided with an insertion hole used for being matched with the convex column, and the convex column is inserted into the insertion hole of the ejector rod in the state that the ejector rod is fixed by the second fixing portion.

Furthermore, the matching structure of the convex columns and the jacks is provided with a plurality of groups.

Furthermore, the diameters of the matching structures of each group of convex columns and the jacks are different.

Through the utility model provides a technical scheme has following beneficial effect:

after the isolation contact is switched off, the connecting part of the ejector rod is fixedly connected to the first fixing part of the contact bridge seat, so that the bottom of the ejector rod is abutted to the contact base, the contact bridge seat and the contact base keep a certain opening angle, the switching-on action of the contact bridge seat is limited, the contact bridge of the contact bridge seat is kept separated from the upper bus of the contact base, and the switching-off state is kept. When needing to close a floodgate, demolish the ejector pin, be about to the connecting portion of ejector pin and the first fixed part separation of touching the bridge seat, cancel the conflict of ejector pin to the contact base, touch the bridge seat and can normally carry out the action of closing a floodgate.

Drawings

FIG. 1 is a schematic view of an embodiment of an isolating contact with a safety padlock structure assembled in a separating state;

FIG. 2 is an exploded view of the isolating contact with the safety padlock structure in the open state;

FIG. 3 is a schematic structural view of the carrier rod in the embodiment;

FIG. 4 is an assembly diagram of an isolating contact with a safety padlock structure in a closing state in the embodiment;

fig. 5 is an assembly diagram of another angle of the isolating contact with the safety padlock structure in a closing state in the embodiment.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 5, the isolating contact with a safety padlock structure provided in this embodiment includes a contact base 10 and a contact bridge base 20 that are pivotally connected to each other, specifically, the contact base 10 includes a base, and an upper bus and a lower bus that are disposed on the base, the contact bridge base 20 includes a cover plate and a contact bridge that is fixed on the cover plate, the contact bridge and the lower bus form a pivot connection, so that the contact base 11 and the contact bridge base 12 are pivotally connected to each other, and the opening/closing of the contact bridge base 12 and the contact base 11 separates or contacts the contact bridge and the upper bus, so as to realize the opening/closing of the isolating contact, which is a conventional isolating contact structure and will not be described in detail herein.

Still include ejector pin 30, be equipped with first fixed part on touching bridge seat 20, be equipped with connecting portion on ejector pin 30, ejector pin 30 through connecting portion detachable fixed connection in touch bridge seat 20's first fixed part, and under the fixed connection's of first fixed part and connecting portion the state, the bottom of ejector pin 30 is contradicted on contact base 10 to keep touching bridge seat 20's the separation of the last generating line of touching bridge and contact base 10, keep keeping the separating brake state of isolation contact promptly, as shown in fig. 1.

After the isolation contact is opened, with the connecting portion fixed connection of ejector pin 30 in on the first fixed part of touch bridge seat 20 for the bottom of ejector pin 30 is contradicted on contact base 10, touches bridge seat 20, ejector pin 30 and contact base 10 and forms a firm triangle-shaped structure, with the separation of the last generating line of keeping touch bridge seat 20 and contact base 10, keeps the state of opening the floodgate, can effectively prevent to touch the combined floodgate action of bridge seat 20, can not close the floodgate action when the mistake bumps or other foreign object's striking, it is secure to maintainer's safety. When the switch needs to be switched on, the ejector rod 30 is detached, that is, the connecting part of the ejector rod 30 is separated from the first fixing part of the contact bridge base 20, the contact of the ejector rod 30 on the contact base 10 is cancelled, and the contact bridge base 20 can normally perform the switch-on action.

Continuing to refer to fig. 1, in this embodiment, the connecting portion of the push rod 30 includes a clamping groove 31 provided on the push rod 30, the first fixing portion of the contact bridge base 20 includes a connection side end 21 formed on the contact bridge base 20, the connection side end 21 has an outer side wall (not shown) disposed outwards and an upper surface (not shown) and a lower bottom surface (not shown) respectively located at the upper end and the lower end of the outer side wall, the clamping groove 31 of the push rod 30 is detachably clamped on the connection side end 21 of the contact bridge base 20, that is, the groove bottom of the clamping groove 31 faces the outer side wall of the connection side end 21, and the upper groove wall and the lower groove wall of the clamping groove respectively abut against the upper surface and the lower bottom surface of the connection side end 21. The clamping groove 31 is matched with the connecting side end 21 in a clamping mode, so that the ejector rod 30 can be well prevented from swinging relative to the contact bridge base 20, and a triangular structure formed by the contact bridge base 20, the ejector rod 30 and the contact base 10 is more stable.

Still further, in this embodiment, the connecting portion of the push rod 30 further includes a first connecting hole 321 disposed on the push rod 30, the first fixing portion of the contact bridge base 20 further includes a second connecting hole 221 disposed on the connecting side end 21, when the clamping groove 31 of the push rod 30 is clamped on the connecting side end 21 of the contact bridge base 20, the first connecting hole 321 corresponds to the second connecting hole 221, and is inserted and connected through a plug member (not shown). On the basis of the clamping fit of the clamping groove 31 and the connection side 21, the insertion fit between the push rod 30 and the contact bridge base 20 is increased (i.e. the pin is inserted into the corresponding first connection hole 321 and the second connection hole 221), the sliding of the push rod 30 along the length direction of the connection side 21 can be effectively limited, the contact bridge base 20 and the contact base 10 can keep a stable and unchangeable opening angle, and the risk of switching-on due to the fact that the opening angle between the contact bridge base 20 and the contact base 10 is reduced because the push rod 30 slides along the length direction of the connection side 21 is prevented.

Still further, in this embodiment, the clamping groove 31 of the top rod 30 is clamped to the connection side end 21 from the outer side wall of the connection side end 21, the upper surface of the connection side end 21 is provided with a protruding lug 22 in a protruding manner, the second connection hole 221 is opened on the protruding lug 22, the top rod 30 is provided with a "U" -shaped seat 32, the first connection hole 321 is opened on two side walls of the "U" -shaped seat 32, the "U" -shaped seat 32 is sleeved on the protruding lug 22 of the contact bridge seat 20, and two side walls of the "U" -shaped seat 32 respectively correspond to the outer sides of the protruding lug 22. In assembling the carrier rod 30, one of the assembling is: the clamping groove 31 of the ejector rod 30 is aligned with the connecting side end 21 of the contact bridge seat 20 and is clamped, at the moment, the U-shaped seat 32 of the ejector rod 30 is staggered with the lug 22, then the ejector rod 30 is slid, the U-shaped seat 32 is sleeved on the lug 22, two inner side walls of the U-shaped seat 32 are respectively positioned at the two outer sides of the lug 22, and the second connecting hole 221 corresponds to the first connecting hole 321 and is inserted, connected and fixed through a bolt piece. Thus, the U-shaped seat 32 and the lug 22 are sleeved, so that the ejector rod 30 can be effectively prevented from being separated from the connecting side end 21 of the contact bridge seat 20, and the fixed connection between the first fixing part and the connecting part is firmer.

When the disassembly is needed, the plug piece connecting the second connecting hole 221 and the first connecting hole 321 is disassembled, then the push rod 30 is moved to make the U-shaped seat 32 and the lug 22 dislocated and separated, and then the push rod 30 is pulled out to make the clamping groove 31 of the push rod 30 separate from the connecting side end 21 of the contact bridge seat 20.

Certainly, in other embodiments, when the clamping groove 31 and the connection side 21 are engaged with each other to limit the connection between the push rod 30 and the contact bridge base 20, that is, when the push rod 30 cannot slide relatively and be separated outwards by the engagement between the clamping groove 31 and the connection side 21, it is not necessary to use other limiting structures. Alternatively, the first fixing portion and the connecting portion may be detachably fixed and engaged by other structures.

Further, in the present embodiment, in a state where the first fixing portion and the connecting portion are fixedly connected, the end surface 34 of the push rod 30 abutting against the contact base 10 is a flat surface, so that the contact area between the push rod 30 and the contact base 10 is increased, the acting force per unit area is small, and mutual twisting damage is effectively prevented.

Further, in this embodiment, the contact bridge base 20 is further provided with a second fixing portion for fixing the push rod 30, the first fixing portion is disconnected from the connecting portion in a state that the push rod 30 is fixed by the second fixing portion, and the push rod 30 cancels the collision against the contact base 10, so that normal closing is realized. When the first fixing portion is separated from the connecting portion, the rod 30 is fixedly placed on the second fixing portion for storing the rod 30, which is convenient for the next use, as shown in fig. 4 and 5.

Still further, in this embodiment, the second fixing portion includes a storage groove provided at the connection side end 21, and the push rod 30 is placed on the storage groove of the connection side end 21 in a state where the push rod 30 is fixed by the second fixing portion. Specifically, an "L" shaped member 23 is disposed on an outer side wall of the connecting side end 21, the "L" shaped member 23 and the outer side wall of the connecting side end 21 together form the storage slot, that is, a vertical plate of the "L" shaped member 23 and the outer side wall of the connecting side end 21 are slot walls of the storage slot, and a horizontal plate of the "L" shaped member 23 is a slot bottom of the storage slot. Of course, in other embodiments, the formation structure of the storage tank is not limited thereto.

Still further, in this embodiment, the second fixing portion further includes a convex pillar 24 disposed at the connecting side end 21, the push rod 30 is further provided with an insertion hole 33 for matching with the convex pillar 24, the convex pillar 24 is inserted into the insertion hole 33 of the push rod in a state that the push rod 30 is fixed by the second fixing portion, and the push rod 30 is fixed together by inserting and matching the storage groove and the convex pillar 24, the length of the storage groove does not need to be increased, and only a downward support and an outward restriction are provided for the push rod 30, so that the structure is simple and the operation is simple.

More specifically, the matching structures of the convex columns 24 and the insertion holes 33 are provided with a plurality of groups, and the matching structures of the convex columns 24 and the insertion holes 33 can well fix the push rod 30, so that the push rod 30 is prevented from swinging when the contact bridge base 20 performs opening and closing actions. Two groups are arranged in the embodiment, the number is small, and the functions can be realized.

More specifically, the diameter of the matching structure of each group of convex columns 24 and the jack 33 is different, that is, in the embodiment, the diameters of the matching structures of the two groups of convex columns 24 and the jack 33 are set to be one large and one small, when the ejector rod 30 is assembled on the second fixing part to be accommodated, an assembler can be reminded to assemble the convex columns according to different sizes, that is, the large jack 33 is matched with the large convex column 24, the small jack 33 is matched with the small convex column 24, and in a structure with a requirement for placing positions, if the U-shaped seat 32 needs to be located at a contact point far away from the contact bridge and the upper bus, the dislocation can be effectively prevented. Of course, in other embodiments, the diameter of the matching structure of each set of studs 24 and sockets 33 may be the same for the structure without the requirement of placement position. Alternatively, when the boss 24 and the insertion hole 33 have a structure for restricting rotation, such as a square shape, a set of matching structures of the boss 24 and the insertion hole 33 may be provided.

The second fixing portion adopts the above structure, which is convenient for connection, and certainly, in other embodiments, under the condition that the storage slot can fix the push rod 30, the matching structure of the convex column 24 and the insertion hole 33 may not be needed. Alternatively, the second fixing portion may be configured to store the rod.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides an keep apart contact with safe padlock structure, includes the contact base that looks pin joint set up and touches the bridge seat, its characterized in that: still include the ejector pin, be equipped with first fixed part on the bridge seat of touching, be equipped with connecting portion on the ejector pin, the ejector pin pass through connecting portion detachable fixed connection in touch the first fixed part of bridge seat, and under the fixed connection's of first fixed part and connecting portion state, the bottom of ejector pin is contradicted on the contact base, makes touch bridge seat and contact base keep certain opening angle to keep touching the separation of bridge seat and contact base.

2. The isolating contact with safety padlock structure of claim 1, characterized in that: the connecting portion of ejector pin is including seting up the joint recess on the ejector pin, touch the first fixed part of bridge seat including forming in the connection side that touches on the bridge seat, the joint recess detachable joint of ejector pin is on touching the connection side of bridge seat.

3. The isolating contact with safety padlock structure of claim 2, characterized in that: the connecting portion of ejector pin still includes the first connecting hole of seting up on the ejector pin, the first fixed part that touches the bridge pedestal still includes the second connecting hole of seting up on the connection side, the joint recess joint of ejector pin is in the time of on touching the connection side of bridge pedestal, first connecting hole and second connecting hole are corresponding to insert through a bolt spare and establish the connection.

4. The isolating contact with safety padlock structure of claim 3, characterized in that: the connection side has the lateral wall that sets up outwards and is located upper surface and the lower bottom surface of lower extreme on the lateral wall respectively, the joint recess of ejector pin is from the lateral wall joint of connection side the connection side, the upper surface arch of connecting the side is equipped with a lug, the second connecting hole is seted up in on the lug, be equipped with a "U" shape seat on the ejector pin, first connecting hole is seted up on the lateral wall of "U" shape seat, "U" shape seat cup joints on the lug that touches the bridge seat, and the inside and outside of lug is corresponding respectively to two lateral walls of "U" shape seat.

5. The isolating contact with safety padlock structure of claim 1, characterized in that: under the fixed connection state of first fixed part and connecting portion, the terminal surface that the ejector pin is contradicted on the contact base is the plane.

6. The isolating contact with safety padlock structure of claim 1, characterized in that: the contact bridge seat is further provided with a second fixing part for fixing the ejector rod, the first fixing part is disconnected with the connecting part under the state that the ejector rod is fixed by the second fixing part, and the ejector rod cancels the conflict of the contact base.

7. The isolating contact with safety padlock structure of claim 6, characterized in that: the contact bridge base is provided with a connecting side end, the second fixing portion comprises a connecting groove arranged on the connecting side end, and the ejector rod is placed on the connecting groove of the connecting side end in the state that the ejector rod is fixed by the second fixing portion.

8. The isolating contact with safety padlock structure of claim 6 or 7, characterized in that: the second fixing part further comprises a convex column arranged on the connecting side end, the ejector rod is further provided with an insertion hole used for being matched with the convex column, and the convex column is inserted into the insertion hole of the ejector rod in the state that the ejector rod is fixed by the second fixing part.

9. The isolating contact with security padlock structure of claim 8, wherein: the matching structure of the convex columns and the jacks is provided with a plurality of groups.

10. The isolating contact with security padlock structure of claim 9, wherein: the diameters of the matching structures of each group of convex columns and the jacks are different.

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