CN212365829U

CN212365829U - Outdoor isolating switch

Info

Publication number: CN212365829U
Application number: CN202021588245.8U
Authority: CN
Inventors: 黄志付; 魏开红; 陶瑞汉
Original assignee: Wenzhou Mairui Electric Co ltd
Current assignee: Wenzhou Mairui Electric Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-01-15
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses an outdoor isolator, its technical scheme main points are: the device comprises a base, wherein a first rotating shaft is rotatably connected with a second rotating shaft base; one end of the first rotating shaft and one end of the second rotating shaft are respectively fixedly sleeved with a first worm wheel and a second worm wheel, the first worm wheel and the second worm wheel are helical gears, the rotating directions of the first worm wheel and the second worm wheel are opposite, and a worm is rotatably connected between the first worm wheel and the second worm wheel; the upper surface of the base is provided with a threaded hole, and the threaded hole is in threaded connection with a locking bolt; the upper ends of the first rotating shaft and the second rotating shaft are fixedly connected with a first insulating magnetic column and a second insulating magnetic column, and the side surfaces of the first insulating magnetic column and the second insulating magnetic column are respectively and fixedly connected with a first switch blade and a second switch blade; the upper side surface and the lower side surface of the first knife switch are fixedly connected with elastic clamping pieces, the upper side surface and the lower side surface of the first knife switch are fixedly provided with protection boxes, and springs are fixedly connected between the inner walls of the protection boxes and the elastic clamping pieces; the utility model discloses a plug-in strip contacts when opening and shutting and is more stable firm.

Description

Outdoor isolating switch

Technical Field

The utility model belongs to the technical field of the isolator technique and specifically relates to an outdoor isolator.

Background

The isolating switch is a switch device which is mainly used for isolating a power supply and switching over, communicating and cutting off a small current circuit and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have insulation distance meeting the specified requirements and obvious disconnection marks; a switching device capable of carrying current in normal loop conditions and current in abnormal conditions for a specified time when in the closed position. Due to large usage amount and high requirement on working reliability, the influence on the design, the establishment and the safe operation of a substation and a power plant is large.

When a switch blade of a common isolating switch is switched on, the switch blade is pushed between the elastic clamping pieces, and the switch blade is fixed by the elastic clamping pieces, so that the contact between the switch blade and the elastic clamping pieces is unstable and the switch blade is easy to deviate; in addition, the elasticity of the elastic clamping piece is inevitably reduced in the long-term use process, and the switch blade cannot be stably fixed in the long-term use process.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing an outdoor isolator has and to make the contact more stable firm advantage of plug-in strip when opening and shutting.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an outdoor isolating switch comprises a base, wherein the upper surface of the base is fixedly connected with a second bearing of a first bearing, and a first rotating shaft and a second rotating shaft are respectively and rotatably connected with the base through the first bearing and the second bearing; a cavity is formed in the base, the first rotating shaft and the second rotating shaft extend into the cavity, a first worm wheel is fixedly sleeved at one end of the first rotating shaft in the cavity, a second worm wheel is fixedly sleeved at one end of the second rotating shaft in the cavity, the first worm wheel and the second worm wheel are helical gears and have opposite rotation directions, and a worm is rotatably connected between the first worm wheel and the second worm wheel; a threaded hole is formed in the upper surface of the base at a position corresponding to the worm, and a locking bolt is connected with the threaded hole in a threaded manner; the upper end of first axis of rotation and second axis of rotation is the first insulation magnetism post of fixedly connected with and the insulation magnetism post of second respectively, the first connection terminal of fixedly connected with and second connection terminal are distinguished on the top of first insulation magnetism post and the insulation magnetism post of second, the side of first connection terminal and second connection terminal is the first plug-in strip of fixedly connected with and second plug-in strip respectively, the upper and lower both sides face of first plug-in strip all is through a plurality of fastening bolt fixed connection elasticity clamping pieces, the upper and lower both sides of first plug-in strip are fixed and are provided with the protection box, fixedly connected with spring between the inner wall of protection box and the elasticity clamping piece.

Furthermore, the first knife switch and the second knife switch are located on the same plane, a yielding groove is formed between one ends of the two elastic clamping pieces close to the second knife switch, and one end of the second knife switch is in contact with the inner walls of the two elastic clamping pieces through the yielding groove.

Through adopting above-mentioned technical scheme, the groove of stepping down that forms between two elastic clamping pieces can be convenient for second plug-in strip and first plug-in strip contact and separation to the break-make of the electric current of being convenient for.

Furthermore, one end of the elastic clamping piece facing the second knife switch is respectively bent towards the direction away from each other.

Through adopting above-mentioned technical scheme, two elastic clamping pieces are favorable to second plug-in strip and the separation of first plug-in strip towards the interval grow between the one end of second plug-in strip.

Furthermore, the top ends of the first wire holder and the second wire holder are respectively and fixedly connected with a first conductive contact and a second conductive contact, and a plurality of wire connecting holes are formed in the first conductive contact and the second conductive contact.

Through adopting above-mentioned technical scheme, first electrically conductive contact and second electrically conductive contact can be with the leading-in isolator of electric current of circuit, and the wiring hole is convenient for the electric wire and the first electrically conductive contact of circuit and second electrically conductive contact connection.

Further, the first conductive contact and the second conductive contact are electrically connected with the first knife switch and the second knife switch respectively.

By adopting the technical scheme, the first conductive contact, the second conductive contact, the first switch blade and the second switch blade form a current path, and the first switch blade and the second switch blade can control the on-off of the circuit current.

Furthermore, one end of the worm, which is positioned outside the base, is fixedly connected with a rotating disc, and an insulating layer is fixedly arranged on the surface of the rotating disc.

By adopting the technical scheme, the rotating disc can facilitate the rotation of the worm, so that the effect of saving labor is achieved; the insulating layer is arranged on the surface of the rotating disc, so that the current of electric leakage can be prevented from hurting operators, and the safety of the device is improved.

To sum up, the utility model discloses mainly have following beneficial effect:

the utility model discloses a through worm and first worm wheel, second worm wheel rotation connection, first worm wheel and second worm wheel are helical gear and revolve to opposite directions, rotate the worm and can make first axis of rotation and second axis of rotation that connect on first worm wheel and second worm wheel rotate to drive first insulating magnetic column and second insulating magnetic column and rotate and make second plug-in strip and elasticity clamping piece contact and separation, because worm wheel and worm have from the locking nature, so second plug-in strip and elasticity clamping piece contact stably, can not squint; in addition, a threaded hole is formed in the upper surface of the base at a position corresponding to the worm, a locking bolt is in threaded connection with the threaded hole and can be screwed downwards to compress the worm, the stability of the worm is further improved, and the contact stability of the second knife switch and the elastic clamping piece is enhanced; fixedly connected with spring between the inner wall of protection box and the elasticity clamping piece, the spring is in compression state, and the elasticity of spring can provide extra elasticity for the elasticity clamping piece, compensates the elasticity decline of elasticity clamping piece because of using for a long time.

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 diagram of an embodiment of the present invention;

fig. 2 is a schematic top view of an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

in the figure: 1. a base; 2. a first bearing; 3. a second bearing; 4. a first rotating shaft; 5. a second rotating shaft; 6. a cavity; 7. a first worm gear; 8. a second worm gear; 9. a worm; 10. a threaded hole; 11. locking the bolt; 12. a first insulating magnetic pillar; 13. a second insulated magnetic pillar; 14. a first blade; 15. a second blade; 16. fastening a bolt; 17. an elastic clip; 18. a yielding groove; 19. a first wire holder; 20. a second wire holder; 21. a first conductive contact; 22. a second conductive contact; 23. a wiring hole; 24. rotating the disc; 25. a protection box; 26. a spring.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 to 3, an outdoor isolating switch includes a base 1, a second bearing 3 of a first bearing 2 is fixedly connected to an upper surface of the base 1, a first rotating shaft 4 and a second rotating shaft 5 are rotatably connected to the base 1 through the first bearing 2 and the second bearing 3, respectively, and the first bearing 2 and the second bearing 3 make the first rotating shaft 4 and the second rotating shaft 5 rotate more smoothly; a cavity 6 is formed in the base 1, the first rotating shaft 4 and the second rotating shaft 5 extend into the cavity 6, a first worm wheel 7 is fixedly sleeved at one end of the first rotating shaft 4 in the cavity 6, a second worm wheel 8 is fixedly sleeved at one end of the second rotating shaft 5 in the cavity 6, the first worm wheel 7 and the second worm wheel 8 are helical gears and have opposite rotation directions, a worm 9 is rotatably connected between the first worm wheel 7 and the second worm wheel 8, the first worm wheel 7 and the second worm wheel 8 can simultaneously rotate by rotating the worm 9, and the first worm wheel 7 and the second worm wheel 8 rotate in opposite directions; a threaded hole 10 is formed in the position, corresponding to the worm 9, of the upper surface of the base 1, a locking bolt 11 is connected to the threaded hole 10 in a threaded mode, and the locking bolt 11 can be screwed downwards in the threaded hole 10 to press the worm 9 tightly; the upper ends of the first rotating shaft 4 and the second rotating shaft 5 are respectively and fixedly connected with a first insulating magnetic column 12 and a second insulating magnetic column 13, the top ends of the first insulating magnetic column 12 and the second insulating magnetic column 13 are respectively and fixedly connected with a first wire holder 19 and a second wire holder 20, the side surfaces of the first wire holder 19 and the second wire holder 20 are respectively and fixedly connected with a first switch blade 14 and a second switch blade 15, and the first switch blade 14 and the second switch blade 15 are opened and closed along with the rotation of the first worm wheel 7 and the second worm wheel 8; because the first worm wheel 7, the second worm wheel 8 and the worm 9 have self-locking performance, the first knife switch 14 and the second knife switch 15 are contacted more stably and firmly when being opened and closed; in addition, a threaded hole 10 is formed in the position, corresponding to the worm 9, of the upper surface of the base 1, a locking bolt 11 is in threaded connection with the threaded hole 10, the locking bolt 11 can be screwed downwards to press the worm 9, the stability of the worm 9 is further improved, the contact stability of the first knife switch 14 and the second knife switch 15 is enhanced, elastic clamping pieces 17 are fixedly connected to the upper side surface and the lower side surface of the first knife switch 14 through a plurality of fastening bolts 16, the two elastic clamping pieces 17 can be connected and fastened with the first knife switch 14 through the fastening bolts 16, and the elastic clamping pieces 17 can be replaced conveniently; the upper and lower both sides of first plug-in strip 14 are fixed and are provided with protection box 25, offer the logical groove that supplies second plug-in strip 15 to pass through on the protection box 25, fixedly connected with spring 26 between the inner wall of protection box 25 and the elasticity clamping piece 17, spring 26 is in compression state, and spring 26's elasticity can provide extra elasticity for elasticity clamping piece 17, compensates elasticity decline because of using for a long time elasticity clamping piece 17.

Referring to fig. 1 and 3, the first blade 14 and the second blade 15 are located on the same plane, a relief groove 18 is formed between the ends of the two elastic clamping pieces 17 close to the second blade 15, and one end of the second blade 15 is in contact with the inner walls of the two elastic clamping pieces 17 through the relief groove 18, so that the second blade 15 is in contact with and separated from the first blade 14, and the current is switched on and off conveniently.

Referring to fig. 1 and 3, the ends of the elastic clamping pieces 17 facing the second blade 15 are respectively bent away from each other, so that the distance between the ends of the two elastic clamping pieces 17 facing the second blade 15 is increased, which facilitates the separation of the second blade 15 from the first blade 14.

Referring to fig. 1, the top ends of the first wire holder 19 and the second wire holder 20 are respectively and fixedly connected with a first conductive contact 21 and a second conductive contact 22, which can lead the current of the circuit into the disconnector, the first conductive contact 21 and the second conductive contact 22 are both provided with a plurality of wire holes 23, and the wire holes 23 are convenient for the electric wires of the circuit to be connected with the first conductive contact 21 and the second conductive contact 22.

Referring to fig. 1, a first conductive contact 21 and a second conductive contact 22 are electrically connected to the first blade 14 and the second blade 15, respectively, the first conductive contact 21, the second conductive contact 22 and the first blade 14 and the second blade 15 form a current path, and the first blade 14 and the second blade 15 can control the on/off of the circuit current.

Referring to fig. 1 and 2, one end of the worm 9 located outside the base 1 is fixedly connected with a rotating disc 24, and the rotating disc 24 can facilitate the rotation of the worm 9, so as to achieve the effect of saving labor; the insulating layer is fixedly arranged on the surface of the rotating disc 24, so that the current of electric leakage can be prevented from hurting operators, and the safety of the device is improved.

The working principle is as follows: the utility model discloses when using, thereby operating personnel rotates worm 9 through rolling disc 24 and makes the first worm wheel 7 and the second worm wheel 8 of worm 9 both sides rotate, thereby drive first insulating magnetic column 12 and the rotation of second insulating magnetic column 13, make second plug-in strip 15 get into the groove 18 of stepping down between the elasticity clamping piece 17 on the first plug-in strip 14, second plug-in strip 15 contacts with the inner wall of elasticity clamping piece 17, thereby switch on with first plug-in strip 14, the mechanism that worm 9 and first worm wheel 7 and second worm wheel 8 constitute has the auto-lock nature, second plug-in strip 15 and the contact of elasticity clamping piece 17 are more stable firm, difficult skew; the locking bolt 11 is screwed downwards through the threaded hole 10 so as to press the worm 9, so that the contact stability of the first knife switch 14 and the second knife switch 15 of the device with the elastic clamping piece 17 can be further improved when the device is opened and closed; the upper side and the lower side of the first knife switch 14 are fixedly provided with a protection box 25, a spring 26 is fixedly connected between the inner wall of the protection box 25 and the elastic clamping piece 17, the spring 26 is in a compression state, the elastic force of the spring 26 can provide extra elastic force for the elastic clamping piece 17, and the elastic clamping piece 17 is compensated for elastic reduction due to long-term use.

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. An outdoor isolator, includes base (1), its characterized in that: the upper surface of the base (1) is fixedly connected with a second bearing (3) of the first bearing (2), and the first rotating shaft (4) and the second rotating shaft (5) are respectively in rotating connection with the base (1) through the first bearing (2) and the second bearing (3); a cavity (6) is formed in the base (1), the first rotating shaft (4) and the second rotating shaft (5) extend into the cavity (6), a first worm wheel (7) is fixedly sleeved at one end of the first rotating shaft (4) in the cavity (6), a second worm wheel (8) is fixedly sleeved at one end of the second rotating shaft (5) in the cavity (6), the first worm wheel (7) and the second worm wheel (8) are helical gears and have opposite rotation directions, and a worm (9) is rotatably connected between the first worm wheel (7) and the second worm wheel (8); a threaded hole (10) is formed in the position, corresponding to the worm (9), of the upper surface of the base (1), and a locking bolt (11) is in threaded connection with the threaded hole (10); first axis of rotation (4) with the upper end of second axis of rotation (5) is fixedly connected with first insulation magnetism post (12) and second insulation magnetism post (13) respectively, first insulation magnetism post (12) with first connection terminal (19) of the top difference fixedly connected with and second connection terminal (20) of second insulation magnetism post (13), first connection terminal (19) with the side difference fixedly connected with first plug-in strip (14) and second plug-in strip (15) of second connection terminal (20), the upper and lower both sides face of first plug-in strip (14) all through a plurality of fastening bolt (16) fixed connection elasticity clamping piece (17), the upper and lower both sides of first plug-in strip (14) are fixed and are provided with protection box (25), the inner wall of protection box (25) with fixedly connected with spring (26) between elasticity clamping piece (17).

2. An outdoor disconnector according to claim 1, characterized in that: first plug-in strip (14) with second plug-in strip (15) are in the coplanar, two elasticity clamping piece (17) are close to be formed with abdicating groove (18) between the one end of second plug-in strip (15), the one end of second plug-in strip (15) is through abdicating groove (18) and two the inner wall contact of elasticity clamping piece (17).

3. An outdoor disconnector according to claim 2, characterized in that: the elastic clamping pieces (17) are bent towards the direction away from each other towards one end of the second knife switch (15).

4. An outdoor disconnector according to claim 1, characterized in that: the top ends of the first wire holder (19) and the second wire holder (20) are respectively and fixedly connected with a first conductive contact (21) and a second conductive contact (22), and a plurality of wire connection holes (23) are formed in the first conductive contact (21) and the second conductive contact (22).

5. An outdoor disconnector according to claim 4, characterized in that: the first conductive contact (21) and the second conductive contact (22) are electrically connected with the first blade (14) and the second blade (15), respectively.

6. An outdoor disconnector according to claim 1, characterized in that: one end of the worm (9) located outside the base (1) is fixedly connected with a rotating disc (24), and an insulating layer is fixedly arranged on the surface of the rotating disc (24).