A reliable new isolating switch

Abstract

The utility model relates to the field of disconnecting switch discloses a reliable novel disconnecting switch, including base, the base top end near both sides all are fixedly connected with insulator, two the insulator one top end fixedly connected with the pivot support, another top end fixedly connected with the clamping shell, pivot support top end hinged connection has the knife valve, the clamping shell is close to the front end and is provided with the rectangular opening, and the rectangular opening is fixedly connected with the clamping device, the clamping device includes two no.

Description

Technical Field

[0001] This utility model relates to the field of disconnecting switches, and in particular to a reliable new disconnecting switch. Background Technology

[0002] A disconnecting switch is a switching device mainly used to isolate circuits. It is typically used to provide a clearly visible disconnect point to reliably isolate electrical equipment from the live power grid. In order to ensure the stability of equipment and line connections, a reliable new type of disconnecting switch is needed.

[0003] In the process of developing this application, the inventors discovered the following problems with the prior art: Existing disconnecting switches typically control whether the circuit is connected by rotating the knife valve to connect or disconnect it from the knife holder. However, after the knife valve is connected to the knife holder, it is usually not constrained, and the circuit connection may be unstable due to external factors.

[0004] Therefore, those skilled in the art have provided a reliable new type of disconnecting switch to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a reliable new type of disconnecting switch. When the knife valve is connected to the knife seat, a constraint is applied to it to ensure the stability of the circuit connection.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A reliable new type of disconnecting switch includes a base, with insulators fixedly connected to both sides of the top of the base. One of the two insulators has a rotating shaft support fixedly connected to its top, and the other has a clamping housing fixedly connected to its top. A knife valve is hinged to the top of the rotating shaft support. The clamping housing has a rectangular opening near its front end, and a clamping device is fixedly connected inside the rectangular opening. The clamping device includes two first movable blocks, which are mirror images of each other. Two gears are provided at the bottom of each of the two first movable blocks, and a second movable block is provided at the bottom of the lower gear. Synchronous pulleys are fixedly connected to both ends of each gear, and a synchronous belt is movably arranged between each pair of synchronous pulleys.

[0007] Furthermore, a rectangular channel is provided near the rear end of the clamping housing, and a load terminal block is fixedly connected inside the rectangular channel. A knife holder is fixedly connected to the top of the load terminal block near the inner side, and a power terminal block is fixedly connected to the top of the insulator near the middle of the rotating shaft support.

[0008] Furthermore, an insulating shell is fitted around the outer side of the knife valve near the middle, and a handle is provided near the front end of the insulating shell. The front end of the knife valve, outside the insulating shell, is in contact with the inner wall of the knife holder.

[0009] Furthermore, the second movable block is U-shaped, and both its vertical ends and the bottom of the two first movable blocks are racks. The four gears are parallel to each other vertically, and the upper gears mesh with the racks at the bottom of the two first movable blocks, while the lower two gears mesh with the racks at the vertical ends of the second movable block.

[0010] This utility model has the following beneficial effects: 1. This utility model proposes a reliable new type of disconnect switch. When the knife valve is connected to the knife seat, the insulating shell pushes the second movable block to move. The second movable block drives the meshed gear to rotate through the racks at both ends of its inner side. The rotating gear drives the synchronous pulleys and synchronous belt at both ends of its rotating gear to rotate. The synchronous pulley at the other end of the synchronous belt drives the gear to rotate. Through the toothed belt at the bottom of the first movable block, the two first movable blocks are pushed to move inward to clamp the insulating shell and fix the connection between the knife valve and the knife seat.

[0011] 2. The present invention proposes a reliable new type of disconnecting switch. When the knife valve separates from the knife seat, the insulating shell pushes two movable blocks No. 1 to move outward, releasing them from clamping the insulating shell. At the same time, the rack at its bottom drives the gear meshed with the rack to rotate. The rotating gear drives the synchronous pulleys and synchronous belt at both ends to rotate. The synchronous belt drives the synchronous pulley and gear at the other end to rotate, pulling the movable blocks No. 2 meshed with the rack and gear at both ends on the inner side to move upward, restoring them to the state before the knife valve and knife seat are connected, in order to prepare for the next connection of the knife valve and knife seat. Attached Figure Description

[0012] Figure 1 This is an isometric view of the present invention in its closed state; Figure 2 This is an isometric view of the present invention in the disconnected state; Figure 3 This is an isometric schematic diagram of the knife valve in the closed state of this utility model; Figure 4 This is an isometric view of the knife valve of this utility model in the open state. Figure 5 This is an isometric view of the clamping device of this utility model.

[0013] Legend: 1. Base; 2. Insulator; 3. Load terminal block; 4. Power terminal block; 5. Clamping housing; 6. Shaft support; 7. Insulating housing; 8. Clamping device; 9. Knife valve; 10. Knife holder; 801. Synchronous pulley; 802. Synchronous belt; 803. No. 1 movable block; 804. No. 2 movable block; 805. Gear. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Reference Figure 1 , Figure 4 One embodiment provided by this utility model: A reliable new type of disconnecting switch includes a base 1. Insulators 2 are fixedly connected to the top of the base 1 near both sides. A rotating shaft support 6 is fixedly connected to the top of one of the two insulators 2, and a clamping shell 5 is fixedly connected to the top of the other. A knife valve 9 is hinged to the top of the rotating shaft support 6. A rectangular opening is provided near the front end of the clamping shell 5, and a clamping device 8 is fixedly connected inside the rectangular opening. The clamping device 8 includes two first movable blocks 803, which are mirror images of each other. Two gears 805 are provided at the bottom of each of the two first movable blocks 803, and a second movable block 804 is provided at the bottom of the lower gear 805. Synchronous pulleys 801 are fixedly connected to both ends of each gear 805, and a synchronous belt 802 is movably arranged between each pair of synchronous pulleys 801.

[0016] Specifically, insulator 2 has a ceramic umbrella-shaped structure (with a smooth vitreous glaze on the surface to seal the ceramic body and prevent moisture and dirt from seeping into the interior; this is existing technology and will not be described in detail). The rotating shaft support 6 is fixedly connected to the top of one of the insulators 2, and a rotating shaft is provided on its top. A knife valve 9 is hinged to the rotating shaft. The clamping housing 5 has a rectangular opening near the front end, and a clamping device 8 is fixedly connected inside the rectangular opening. The clamping device 8 includes two first movable blocks 803, four gears 805, eight synchronous pulleys 801, four synchronous belts 802, and one second movable block 804. Two gears 805 are respectively provided at the bottom of the two first movable blocks 803, and the two gears 805 are parallel to each other. The second movable block 804 is movably provided at the bottom of the lower gear 805. The eight synchronous pulleys 801 are respectively fixedly connected to the two ends of the four gears 805, and synchronous belts 802 are movably connected between each pair.

[0017] Reference Figure 2 , Figure 3 , Figure 5The clamping housing 5 has a rectangular channel near the rear end, and a load terminal block 3 is fixedly connected inside the rectangular channel. A knife holder 10 is fixedly connected to the top of the load terminal block 3 near the inner side. A power terminal block 4 is fixedly connected to the top of the insulator 2 near the middle of the rotating shaft support 6. The second movable block 804 is U-shaped, and the interior of both vertical ends and the bottom of the two first movable blocks 803 are both racks. The four gears 805 are parallel to each other in pairs, and the upper gear 805 meshes with the racks at the bottom of the two first movable blocks 803 respectively. The two lower gears 805 mesh with the racks at the interior of both vertical ends of the second movable block 804 respectively.

[0018] Specifically, the load terminal block 3 is fixedly connected to the rectangular channel at the rear end of the clamping housing 5. A knife holder 10 is fixedly connected to its top near the inner side. A power terminal block 4 is fixedly connected to the top of the insulator 2 near the middle of the rotating shaft support 6. An insulating housing 7 is sleeved on the outer side of the knife valve 9 near the middle. A handle is provided near the front end of the insulating housing 7. The part of the front end of the knife valve 9 outside the insulating housing 7 is in contact with the inner wall of the knife holder 10. The knife holder 10 is a horizontal F-shaped metal plate with a channel in the middle. The front end of the knife valve 9 and the knife holder 10 are both made of copper-based silver-plated metal material with a plating of not less than 20 micrometers. The second movable block 804 is U-shaped, and the interior of both vertical ends and the bottom of the two first movable blocks 803 are both racks. The four gears 805 are parallel to each other in pairs. The upper gear 805 meshes with the racks at the bottom of the two first movable blocks 803 respectively, and the two lower gears 805 mesh with the racks inside the vertical ends of the second movable block 804 respectively.

[0019] Working principle: When the circuit is connected, the knife valve 9 needs to be in contact with the knife holder 10. The knife valve 9 rotates through the hinged rotating shaft support 6 and is in contact with the knife holder 10. During the rotation, the insulating shell 7 pushes the second movable block 804 in the clamping device 8 to move downward. During the movement, the racks on both sides of the inner wall of the second movable block 804 drive the gears 805 they mesh with to rotate, which drives the synchronous pulleys 801 at both ends to rotate. Through the synchronous belt 802, the transmission is transmitted to the upper synchronous pulley 801, which drives the gears 805 meshed with the racks at the bottom of the two first movable blocks 803 to rotate, pushing the two first movable blocks 803 to move inward to clamp the insulating shell 7. The clamping of the insulating shell 7 fixes the contact between the knife valve 9 and the knife holder 10. Secondly, when the circuit is disconnected, the knife valve 9 separates from the knife holder 10. The handle on the top of the insulating shell 7 pulls the knife valve 9 to separate from the knife holder 10. When separated, the insulating shell 7 pushes the two first movable blocks 803 to move to both ends, causing the gears 805 meshed with the racks at the bottom of the first movable block 803 to rotate. The rotating gears 805 drive the synchronous pulleys 801 fixed at both ends to rotate. Through the synchronous belt 802, the synchronous pulleys 801 below are transmitted to drive the gears 805 meshed with the racks at both ends of the inner side of the second movable block 804 to rotate, causing the second movable block 804 to move upward and return to the state before the circuit is connected, in preparation for the next circuit connection.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reliable new type of disconnecting switch, comprising a base (1), characterized in that: The base (1) has insulators (2) fixedly connected to both sides near the top. One of the two insulators (2) has a rotating shaft support (6) fixedly connected to its top, and the other has a clamping shell (5) fixedly connected to its top. The rotating shaft support (6) has a knife valve (9) hinged to its top. The clamping housing (5) has a rectangular opening near the front end, and a clamping device (8) is fixedly connected inside the rectangular opening. The clamping device (8) includes two first movable blocks (803), which are mirror images of each other. Two gears (805) are provided at the bottom of each of the two first movable blocks (803), and a second movable block (804) is provided at the bottom of the lower gear (805). Synchronous pulleys (801) are fixedly connected to both ends of each gear (805), and a synchronous belt (802) is movably arranged between each pair of synchronous pulleys (801).

2. The reliable novel disconnecting switch according to claim 1, characterized in that: The clamping housing (5) has a rectangular channel near the rear end, and a load terminal block (3) is fixedly connected inside the rectangular channel. A knife holder (10) is fixedly connected to the top of the load terminal block (3) near the inner side. A power terminal block (4) is fixedly connected to the top of the insulator (2) near the middle of the rotating shaft support (6).

3. A reliable novel disconnecting switch according to claim 2, characterized in that: The knife valve (9) is fitted with an insulating shell (7) near the middle outer side. The insulating shell (7) is provided with a handle near the front end. The part of the front end of the knife valve (9) outside the insulating shell (7) is in contact with the inner wall of the knife seat (10).

4. A reliable novel disconnecting switch according to claim 1, characterized in that: The second movable block (804) is U-shaped, and the interior of both vertical ends and the bottom of the two first movable blocks (803) are both racks. The four gears (805) are parallel to each other in pairs, and the upper gear (805) meshes with the racks at the bottom of the two first movable blocks (803) respectively, and the lower two gears (805) mesh with the racks at the interior of both vertical ends of the second movable block (804) respectively.

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