CN210015801U

CN210015801U - Safety isolating switch for electric power construction

Info

Publication number: CN210015801U
Application number: CN201921406920.8U
Authority: CN
Inventors: 张丽君; 张佳鹏; 孙远远; 唐路平
Original assignee: Jiangsu Is Stone Polytron Technologies Inc
Current assignee: Jiangsu Is Stone Polytron Technologies Inc
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-02-04
Anticipated expiration: 2029-08-27

Abstract

The utility model relates to the technical field of safety isolating switches, and discloses a safety isolating switch for electric power construction, wherein insulators are respectively arranged on two sides of the upper surface of a supporting channel steel, a buffer component is fixedly connected to the upper end of each insulator, a contact seat is fixedly connected to the upper surface of each buffer component, a heat dissipation component is arranged at one side of the lower surface of the contact seat, which is positioned at one side of the buffer component, a contact blade is movably arranged on the upper surface of the contact seat, a connecting rotating shaft is arranged at the joint of the contact blade and the contact seat, a fixed lock catch is arranged above the other end of the contact blade, which is far away from the connecting rotating shaft, a contact spring is arranged below the fixed lock catch, the buffer component can reduce the pressure generated by the opening and closing of the contact blade on the insulators, reduce the overall vibration and keep the stability of a circuit breaker, the heat radiation assembly can increase the heat radiation effect of the contact seat, reduce the heating effect of the contact and prolong the service life.

Description

Safety isolating switch for electric power construction

Technical Field

The utility model relates to a safety isolation switch technical field specifically is a safety isolation switch for electric power construction.

Background

The isolating switch, namely when in the separated position, the contacts have the insulation distance meeting the specified requirements and obvious disconnection marks; when the isolating switch is in the closed position, the isolating switch of the switch equipment, which can carry the current under the condition of a normal loop and the current under the abnormal condition within the specified time, is generally referred to as a high-voltage isolating switch, and the isolating switch has the main characteristic of no arc extinguishing capability and can only be opened and closed under the condition of no load current.

However, the existing disconnecting switch still has some defects, for example, the existing disconnecting switch is easy to generate heat to cause damage, the contact with the highest heat generation rate is adopted, and the existing disconnecting switch can vibrate the whole body when the contact blade is opened and closed, so that the insulator can be stressed. Accordingly, a safety isolating switch for power construction is provided to solve the problems set forth in the background art described above by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a safety isolation switch for electric power construction to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a safety isolating switch for electric power construction comprises a supporting channel steel, insulators are arranged on two sides of the upper surface of the supporting channel steel, mounting holes are arranged on the upper surface of the supporting channel steel and positioned at the outer side of the insulator, the upper end of the insulator is fixedly connected with a buffer component, the upper surfaces of the buffer components are fixedly connected with contact seats, the lower surface of the contact seat positioned at one side is provided with a heat dissipation component at the position of one side of the buffer component, and the upper surface of the contact seat is movably provided with a contact blade, the joint of the contact blade and the contact seat is provided with a connecting rotating shaft, and a fixed lock catch is arranged above the other end of the contact blade far away from the connecting rotating shaft, a contact spring is arranged below the fixed lock catch at the other end of the contact blade, and a lock catch plate is fixedly arranged at the position, below the fixed lock catch, of the upper surface of the contact seat at the other side.

As a further aspect of the present invention: the buffering subassembly includes first connecting block, blotter, second connecting plate, buffering telescopic link and buffer spring, the lower fixed surface of first connecting block installs the buffering telescopic link, and the lower surface of first connecting block is located the outside fixedly connected with buffer spring of buffering telescopic link, the equal fixedly connected with second connecting plate of lower surface of buffering telescopic link and buffer spring, the lower fixed surface of second connecting plate installs the blotter.

As a further aspect of the present invention: the radiating component comprises a heat conducting plate, a radiating plate, radiating fins, a protective housing and a filter screen, wherein the lower surface of the heat conducting plate is fixedly connected with the radiating plate, the radiating fins are fixedly mounted on one side surface of the radiating plate, the protective housing is arranged outside the radiating plate, and the filter screen is fixedly mounted on the surface of the protective housing.

As a further aspect of the present invention: the number of the insulators is 2, and the insulators are connected with the supporting channel steel through bolts.

As a further aspect of the present invention: the blotter is the paper component, and blotter lower surface and insulator fixed connection.

As a further aspect of the present invention: the heat-conducting plate is a member made of graphite material and is arranged in the contact seat.

As a further aspect of the present invention: the protection housing is the component of PVC material, the filter screen is the component of nylon material, and the quantity of filter screen is 4, the filter screen is installed respectively with the front and back and the both sides surface of protection housing.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the buffering component is arranged, the pressure generated by the opening and closing of the contact blade on the insulator can be reduced, the overall vibration is reduced, and the stability of the circuit breaker is kept;

2. the utility model discloses a be provided with radiator unit, can increase the radiating effect of contact seat, reduce the effect that generates heat of contact, increase of service life.

Drawings

Fig. 1 is a schematic structural diagram of a safety isolating switch for electric power construction;

fig. 2 is a schematic structural diagram of a snubber assembly in a safety isolating switch for power construction;

fig. 3 is a schematic structural diagram of a heat dissipation assembly in a safety isolating switch for power construction.

In the figure: 1. a contact spring; 2. a locking plate; 3. a contact seat; 4. a buffer assembly; 401. a first connection block; 402. a cushion pad; 403. a second connecting plate; 404. buffering the telescopic rod; 405. a buffer spring; 5. fixing the lock catch; 6. contacting the blade; 7. connecting the rotating shaft; 8. a heat dissipating component; 801. a heat conducting plate; 802. a heat dissipation plate; 803. a heat dissipating fin; 804. a protective housing; 805. a filter screen; 9. mounting holes; 10. an insulator; 11. and supporting the channel steel.

Detailed Description

Referring to fig. 1 to 3, in the embodiment of the present invention, a safety isolating switch for electric power construction includes a supporting channel steel 11, insulators 10 are mounted on both sides of an upper surface of the supporting channel steel 11, mounting holes 9 are formed in positions of the upper surface of the supporting channel steel 11, which are located outside the insulators 10, buffer assemblies 4 are fixedly connected to upper ends of the insulators 10, contact bases 3 are fixedly connected to upper surfaces of the buffer assemblies 4, heat dissipation assemblies 8 are disposed at positions of lower surfaces of the contact bases 3, which are located on one side of the buffer assemblies 4, contact blades 6 are movably mounted on the upper surfaces of the contact bases 3, a connecting rotating shaft 7 is disposed at a joint of the contact blades 6 and the contact bases 3, a fixed lock catch 5 is disposed above another end of the contact blades 6, which is far from the connecting rotating shaft 7, and a contact spring 1 is disposed below the fixed lock catch 5 at another end of the contact blades 6, the upper surface of the contact seat 3 on the other side is fixedly provided with a lock catch plate 2 below the fixed lock catch 5, the number of the insulators 10 is 2, and the insulators 10 are connected with the supporting channel steel 11 through bolts.

In fig. 2: equal fixedly connected with buffering subassembly 4 in insulator 10's upper end, buffering subassembly 4 includes first connecting block 401, blotter 402, second connecting plate 403, buffering telescopic link 404 and buffer spring 405, the lower fixed surface of first connecting block 401 installs buffering telescopic link 404, and the lower surface of first connecting block 401 is located the outside fixedly connected with buffer spring 405 of buffering telescopic link 404, the equal fixedly connected with second connecting plate 403 in lower surface of buffering telescopic link 404 and buffer spring 405, the lower fixed surface of second connecting plate 403 installs blotter 402, blotter 402 is the paper component, and blotter 402 lower surface and insulator 10 fixed connection, through being provided with buffering subassembly 4, can reduce the pressure that contact blade 6 opened and shut and produce insulator 10, reduce holistic vibrations, keep the stability of circuit breaker.

In fig. 3: the heat dissipation component 8 is arranged at a position, located at one side of the buffer component 4, of the lower surface of the contact seat 3 located at one side, the heat dissipation component 8 comprises a heat conduction plate 801, a heat dissipation plate 802, heat dissipation fins 803, a protection cover 804 and a filter screen 805, the heat dissipation plate 802 is fixedly connected to the lower surface of the heat conduction plate 801, the heat dissipation fins 803 are fixedly installed on one side surface of the heat dissipation plate 802, the protection cover 804 is arranged outside the heat dissipation plate 802, the filter screen 805 is fixedly installed on the surface of the protection cover 804, the heat conduction plate 801 is a graphite member, the heat conduction plate 801 is installed inside the contact seat 3, the protection cover 804 is a PVC member, the filter screen 805 is a nylon member, the number of the filter screens is 4, the filter screens 805 are respectively installed on the front surface, the rear surface and the two side surfaces of, reduce the heating effect of contact, increase of service life.

The utility model discloses a theory of operation is: when the contact blade 6 is closed, the pressure of the contact blade 6 is reduced and transmitted to the first connecting block 401, the buffer telescopic rod 404 and the buffer spring 405 between the first connecting block 401 and the second connecting plate 403 can reduce the impact force, and the buffer pad 402 on the lower surface of the second connecting plate 403 can perform secondary buffering, by arranging the buffer component 4, the pressure generated by the opening and closing of the touch blade 6 on the insulator 10 can be reduced, the overall vibration is reduced, and the stability of the circuit breaker is kept.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A safety isolating switch for electric power construction comprises a supporting channel steel (11) and is characterized in that insulators (10) are mounted on two sides of the upper surface of the supporting channel steel (11), mounting holes (9) are formed in positions, located on the outer sides of the insulators (10), of the upper surface of the supporting channel steel (11), buffer assemblies (4) are fixedly connected to the upper ends of the insulators (10), contact seats (3) are fixedly connected to the upper surfaces of the buffer assemblies (4), heat dissipation assemblies (8) are arranged in positions, located on one sides of the buffer assemblies (4), of the lower surfaces of the contact seats (3) located on one sides, contact blades (6) are movably mounted on the upper surfaces of the contact seats (3), connecting rotating shafts (7) are arranged at the connecting positions of the contact blades (6) and the contact seats (3), and fixing latches (5) are arranged above the other ends, far away from the connecting rotating shafts (7), of the contact blades (6), the other end of the contact blade (6) is arranged below the fixed lock catch (5) and is provided with a contact spring (1), and the upper surface of the contact seat (3) on the other side is fixedly provided with a lock catch plate (2) at the position below the fixed lock catch (5).

2. The safety isolating switch for power construction according to claim 1, wherein the buffer assembly (4) comprises a first connecting block (401), a buffer pad (402), a second connecting plate (403), a buffer telescopic rod (404) and a buffer spring (405), the buffer telescopic rod (404) is fixedly installed on the lower surface of the first connecting block (401), the buffer spring (405) is fixedly connected to the lower surface of the first connecting block (401) and located outside the buffer telescopic rod (404), the second connecting plate (403) is fixedly connected to the lower surfaces of the buffer telescopic rod (404) and the buffer spring (405), and the buffer pad (402) is fixedly installed on the lower surface of the second connecting plate (403).

3. The safety isolating switch for power construction according to claim 1, wherein the heat dissipation assembly (8) comprises a heat conduction plate (801), a heat dissipation plate (802), heat dissipation fins (803), a protective casing (804) and a filter screen (805), the heat dissipation plate (802) is fixedly connected to the lower surface of the heat conduction plate (801), the heat dissipation fins (803) are fixedly installed on the surface of one side of the heat dissipation plate (802), the protective casing (804) is arranged outside the heat dissipation plate (802), and the filter screen (805) is fixedly installed on the surface of the protective casing (804).

4. A safety disconnector for electric power construction according to claim 1, characterized in that the number of said insulators (10) is 2, and that the insulators (10) are bolted to the supporting channel (11).

5. The safety isolating switch for power construction as claimed in claim 2, wherein the buffer pad (402) is a paper member, and the lower surface of the buffer pad (402) is fixedly connected with the insulator (10).

6. A safety disconnector for electric power construction according to claim 3, characterized in that the heat-conducting plate (801) is a member of graphite material, and the heat-conducting plate (801) is mounted inside the contact block (3).

7. The safety isolating switch for power construction according to claim 3, wherein the protective cover (804) is a member made of PVC, the filter screen (805) is a member made of nylon, the number of the filter screens (805) is 4, and the filter screens (805) are respectively installed on the front, back and side surfaces of the protective cover (804).