CN211788812U

CN211788812U - Easy-to-use movable contact knife for solid-sealed pole

Info

Publication number: CN211788812U
Application number: CN202020887312.XU
Authority: CN
Inventors: 汪善通; 管根来
Original assignee: Taizhou Tongyuan Electric Appliance Co ltd
Current assignee: Taizhou Tongyuan Electric Appliance Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-10-27
Anticipated expiration: 2030-05-22

Abstract

The utility model belongs to the technical field of solid-sealed polar columns, in particular to an easy-to-use solid-sealed polar column movable contact knife, which comprises a movable contact knife main body, wherein the movable contact knife main body is provided with an internal spline and also comprises a pin shaft and a bolt, and the two movable contact knife main bodies are distributed in parallel at intervals and are connected through the bolt; the pin shafts are arranged on the movable contact knife main bodies, and two ends of each pin shaft respectively penetrate through the corresponding movable contact knife main bodies; elastic connection components are respectively installed on opposite surfaces of the movable contact knife main body, and each elastic connection component comprises a connection metal elastic block, an insulation ball body and a second expansion spring; the utility model discloses a gu seal utmost point post movable contact sword utilizes the elasticity switch-on subassembly that sets up, can avoid producing great wearing and tearing between long-term use back movable contact sword and the stationary contact sword, avoids causing the switch-on between movable contact sword and the stationary contact sword bad, guarantees the normal use of equipment to guarantee the reliable switch-on between movable contact sword and the stationary contact sword, prolonged the life of device.

Description

Easy-to-use movable contact knife for solid-sealed pole

Technical Field

The utility model belongs to the technical field of gu seal utmost point post, concretely relates to solid utmost point post movable contact sword that seals who easily uses.

Background

The solid utmost point post that seals is electric circuit breaker's important component part, forms utmost point post in embedding epoxy or thermoplastic material this kind of easily solidified solid insulating material simultaneously with the relevant electrically conductive part of vacuum interrupter and circuit breaker, makes whole circuit breaker utmost point post become a holistic part, and the solid utmost point post that seals has following two advantages: firstly, the structure is simple, the number of detachable parts is small, and the reliability is high due to the modular design; and secondly, the capacity of the insulating rod is extremely high, the surface insulation is changed into volume insulation, compared with air insulation, the influence of the environment is reduced, the insulation strength is greatly improved, the movable contact knife is one of the core parts of the solid-sealed polar pole, and two movable contact knives are generally assembled in parallel and matched with the static contact knife to realize the closed circuit and the open circuit of the device.

When the movable contact knife of the original solid-sealed pole is used for a long time, great abrasion is inevitably generated between the movable contact knife and the static contact knife, the bad connection between the movable contact knife and the static contact knife is caused, and the normal use of equipment is influenced.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides an easy to use seals utmost point post movable contact sword admittedly has convenient to use and long service life's characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: an easy-to-use movable contact knife for a solid-sealed pole comprises movable contact knife bodies, pin shafts and bolts, wherein the movable contact knife bodies are provided with internal splines, the two movable contact knife bodies are distributed in parallel at intervals and connected through the bolts, nuts are screwed at the end parts of the movable contact knife bodies after the bolts penetrate through the two movable contact knife bodies, and a first expansion spring positioned at the inner sides of the two movable contact knife bodies is sleeved on the bolts; the pin shafts are arranged on the movable contact knife main bodies, and two ends of each pin shaft respectively penetrate through the corresponding movable contact knife main bodies; and the opposite surfaces of the movable contact knife main body are respectively provided with an elastic connection component, and the elastic connection component comprises a connection metal elastic block, an insulation ball body and a second expansion spring.

As an optimal technical scheme of the utility model, the spread groove has been seted up on the surface of movable contact sword main part, the one end activity embedding of switch-on metal bullet piece is stretched out to this spread groove in, the other end the spread groove the embedding of switch-on metal bullet piece is served and is fixed with the metal connection base, insulating spheroid distributes in the spread groove, just No. two expanding spring distribute insulating spheroid with between the tank bottom of spread groove.

As a preferred technical scheme of the utility model, insulating spheroidal outer wall supports pastes metal connection base surface, just the metal connection base supports pastes insulating spheroidal surface is the inclined plane.

As an optimized technical scheme of the utility model, the inclined plane one end of metal connection base is fixed with spacing sheetmetal.

As an optimized technical scheme of the utility model, the end that stretches out of switch-on metal bullet piece is hemispherical structure.

As an optimized technical scheme of the utility model, the port inner wall of spread groove is fixed with the sealed spacing ring of silicon rubber.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a gu seal utmost point post movable contact sword utilizes the elasticity switch-on subassembly that sets up, can avoid producing great wearing and tearing between long-term use back movable contact sword and the stationary contact sword, avoids causing the switch-on between movable contact sword and the stationary contact sword bad, guarantees the normal use of equipment to guarantee the reliable switch-on between movable contact sword and the stationary contact sword, prolonged the life of device.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the assembly structure of the movable contact knife main body of the present invention;

fig. 3 is a schematic top sectional view of a main body part of the movable contact knife of the present invention;

in the figure: 1. a movable contact knife main body; 2. an internal spline; 3. an elastic connection component; 4. a pin shaft; 5. a bolt; 6. a first expansion spring; 7. a nut; 8. connecting the metal elastic block; 9. connecting grooves; 10. an insulating sphere; 11. a second expansion spring; 12. a limiting metal sheet; 13. the silicon rubber seals the spacing ring; 14. the metal is connected with the base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: an easy-to-use movable contact knife for a solid-sealed pole comprises a movable contact knife main body 1, wherein the movable contact knife main body 1 is provided with an internal spline 2, the movable contact knife main body further comprises a pin shaft 4 and a bolt 5, the two movable contact knife main bodies 1 are distributed in parallel at intervals and connected through the bolt 5, a nut 7 is screwed at the end part after the bolt 5 penetrates through the two movable contact knife main bodies 1, and a first expansion spring 6 positioned at the inner side of the two movable contact knife main bodies 1 is sleeved on the bolt 5; the pin shaft 4 is arranged on the movable contact knife main body 1, and two ends of the pin shaft 4 respectively penetrate through the corresponding movable contact knife main body 1; install elasticity switch-on subassembly 3 on the opposite face of movable contact sword main part 1 respectively, elasticity switch-on subassembly 3 is including switch-on metal bullet piece 8, insulating spheroid 10 and No. two expanding spring 11, when using, earlier two parallel interval distribution of movable contact sword main part 1, and utilize the screw thread of bolt 5 and nut 7 to close the cooperation and fix, interval between two movable contact sword main parts 1 is to the thickness decision of stationary contact sword, when upset movable contact sword main part 1, when utilizing movable contact sword main part 1 to clip the stationary contact sword and carry out the switch-on, elasticity switch-on subassembly 3 plays, guarantee that movable contact sword main part 1 and stationary contact sword reliably switch on, also avoid long-time after using, produce great wearing and tearing between stationary contact sword and the movable contact sword main part 1.

Specifically, according to fig. 1, fig. 2 and fig. 3, in this embodiment, a connecting groove 9 is formed in a surface of the movable contact knife main body 1, one end of the connection metal elastic block 8 is movably embedded into the connecting groove 9, and the other end of the connection metal elastic block extends out of the connecting groove 9, a metal connection base 14 is fixed on the embedded end of the connection metal elastic block 8, the insulating ball 10 is distributed in the connecting groove 9, the second expansion spring 11 is distributed between the bottom of the insulating ball 10 and the bottom of the connecting groove 9, after the elastic connection component 3 is activated, the extending end of the connection metal elastic block 8 abuts against the outer wall of the stationary contact knife, so that the movable contact knife main body 1 is reliably conducted with the stationary contact knife, and at this time, the current direction is the movable contact knife main body 1, the connection metal elastic block 8, the.

Specifically, according to fig. 1, fig. 2 and fig. 3, in this embodiment, the outer wall of the insulating sphere 10 abuts against the surface of the metal connecting base 14, and the surface of the metal connecting base 14 abutting against the insulating sphere 10 is an inclined surface, under the elastic action of the second expansion spring 11, the insulating sphere 10 generates a thrust force on the through metal elastic block 8, because the surface of the metal connecting base 14 abutting against the insulating sphere 10 is an inclined surface, the through metal elastic block 8 is deflected toward one side by the separation generated by the inclined surface, and the outer wall of the metal connecting base 14 can abut against the side wall of the connecting groove 9, thereby ensuring reliable conduction between the movable contact knife body 1 and the stationary contact knife.

Specifically, according to fig. 1, fig. 2 and fig. 3, in this embodiment, a limiting metal sheet 12 is fixed at one end of the inclined surface of the metal connection base 14 to limit the position of the insulating sphere 10, so as to prevent the insulating sphere 10 from moving to the position of the limiting metal sheet 12 due to an external force and prevent the outer wall of the metal connection base 14 from being unable to abut against the side wall of the connection groove 9.

Specifically, according to fig. 2 and 3, in this embodiment, the protruding end of the metal spring block 8 is a hemispherical structure, so that the movable contact knife body 1 and the stationary contact knife can be closed and closed more easily.

Specifically, according to fig. 3, in this embodiment, a silicone rubber sealing limiting ring 13 is fixed on an inner wall of a port of the connecting groove 9 to limit the position of the connected metal elastic block 8, so as to ensure that the connected metal elastic block 8 is reliably located inside the connecting groove 9 to move, and prevent the connected metal elastic block 8 from separating from the connecting groove 9.

The utility model discloses a theory of operation and use flow: the utility model discloses a gu seal utmost point post movable contact sword, when using, earlier with two movable contact sword main parts 1 parallel interval distribution, and utilize the screw thread of bolt 5 and nut 7 to close the cooperation soon and fix, the interval between two movable contact sword main parts 1 is decided to the thickness of stationary contact sword, when upset movable contact sword main part 1, utilize movable contact sword main part 1 to clip the stationary contact sword and switch on, elasticity switch-on subassembly 3 plays the effect, guarantee that movable contact sword main part 1 and stationary contact sword reliably switch on, also avoid long-time after using, produce great wearing and tearing between stationary contact sword and the movable contact sword main part 1;

after the elastic connection component 3 works, the extending end of the connection metal elastic block 8 abuts against the outer wall of the static contact knife, so that the movable contact knife main body 1 is ensured to be reliably connected with the static contact knife, and the current direction is the movable contact knife main body 1, the connection metal elastic block 8, the metal connection base 14 and the static contact knife.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an easy to use seals utmost point post movable contact sword admittedly, includes movable contact sword main part (1), internal spline (2) have been seted up on movable contact sword main part (1), its characterized in that: the movable contact knife is characterized by further comprising a pin shaft (4) and a bolt (5), the two movable contact knife bodies (1) are distributed in parallel at intervals and connected through the bolt (5), a nut (7) is screwed at the end part of the bolt (5) after penetrating through the two movable contact knife bodies (1), and a first expansion spring (6) located on the inner sides of the two movable contact knife bodies (1) is sleeved on the bolt (5); the pin shaft (4) is arranged on the movable contact knife main body (1), and two ends of the pin shaft (4) respectively penetrate through the corresponding movable contact knife main bodies (1); and the opposite surfaces of the movable contact knife main body (1) are respectively provided with an elastic connection component (3), and the elastic connection component (3) comprises a connection metal elastic block (8), an insulation ball body (10) and a second expansion spring (11).

2. The easy-to-use movable contact knife for the embedded pole according to claim 1, is characterized in that: the movable contact knife is characterized in that a connecting groove (9) is formed in the surface of the movable contact knife main body (1), one end of a connection metal elastic block (8) is movably embedded into the connecting groove (9), the other end of the connection metal elastic block extends out of the connecting groove (9), a metal connection base (14) is fixed on the embedded end of the connection metal elastic block (8), an insulation ball body (10) is distributed in the connecting groove (9), and a second expansion spring (11) is distributed between the bottom of the insulation ball body (10) and the bottom of the connecting groove (9).

3. The easy-to-use movable contact knife for the embedded pole according to claim 2, is characterized in that: the outer wall of the insulating sphere (10) abuts against the surface of the metal connecting base (14), and the surface of the metal connecting base (14) abutting against the insulating sphere (10) is an inclined plane.

4. The easy-to-use movable contact knife for the embedded pole according to claim 3, is characterized in that: and a limiting metal sheet (12) is fixed at one end of the inclined surface of the metal connecting base (14).

5. The easy-to-use movable contact knife for the embedded pole according to claim 1, is characterized in that: the extending end of the connecting metal elastic block (8) is of a hemispherical structure.

6. The easy-to-use movable contact knife for the embedded pole according to claim 2, is characterized in that: and a silicon rubber sealing limiting ring (13) is fixed on the inner wall of the port of the connecting groove (9).