A horizontal high-voltage disconnect switch

Abstract

This invention provides a horizontal high-voltage disconnecting switch, including a disconnecting switch body and an assembly protection device. The assembly protection device is snapped onto the disconnecting switch body. The disconnecting switch body includes a contact mechanism and a contact finger mechanism. The assembly protection device has a first slot matching the contact mechanism and a second slot matching the contact finger mechanism. The assembly protection device is snapped onto the contact mechanism through the first slot and onto the contact finger mechanism through the second slot, thereby preventing the contact mechanism and the contact finger mechanism from opening in the horizontal direction. This application, through the assembly protection device, enables the high-voltage disconnecting switch to be safely installed during the assembly and commissioning process, solves the problem of significant safety hazards during the assembly and commissioning of high-voltage disconnecting switches, reduces production costs, and improves assembly efficiency.

Description

Technical Field

[0001] This invention relates to the field of high-voltage disconnecting switch technology, and in particular to a horizontal high-voltage disconnecting switch. Background Technology

[0002] A high-voltage disconnector is a switchgear that, when in the open position, has an insulation distance between contacts that meets the specified requirements and a clear disconnection mark; and when in the closed position, it can carry current under normal circuit conditions and current under abnormal conditions (such as short circuit) for a specified time.

[0003] With the rapid development of high-voltage power transmission equipment technology, the requirements for improving product quality and reducing production costs are constantly increasing. This makes the assembly tooling of production assembly personnel increasingly important, while also raising the bar for safe production. Existing horizontal high-voltage disconnect switches are generally assembled manually, requiring each component to be assembled sequentially from bottom to top. Precise coordination between various transmission and linkage components is crucial to ensure the high-voltage switch meets the requirements for opening and closing. The opening and closing actions often require repeated adjustments to achieve the correct operation. During assembly and debugging, there is a high risk of the switch automatically tripping, injuring workers, or the switch tipping over and damaging the product due to a shift in its center of gravity, posing significant safety hazards.

[0004] Therefore, it is necessary to propose a horizontal high-voltage disconnect switch to solve or at least alleviate the above-mentioned defects. Summary of the Invention

[0005] The main objective of this invention is to provide a horizontal high-voltage disconnect switch to solve the technical problem that existing horizontal high-voltage disconnect switches are prone to automatic tripping and injuring workers during assembly and commissioning.

[0006] To achieve the above objectives, the present invention provides a horizontal high-voltage disconnecting switch, comprising a disconnecting switch body and an assembly protection device, wherein the assembly protection device is snapped onto the disconnecting switch body; wherein,

[0007] The disconnector switch body includes a contact mechanism and a contact finger mechanism;

[0008] The assembly protection device has a first slot that matches the contact mechanism and a second slot that matches the finger mechanism. The assembly protection device is engaged with the contact mechanism through the first slot and with the finger mechanism through the second slot to prevent the contact mechanism and the finger mechanism from opening in the horizontal direction.

[0009] Preferably, the assembly protection device includes a downward-opening slotted plate, two first side plates connected opposite to each other on both sides of the slotted plate, and two second side plates connected opposite to each other on both sides of the slotted plate; wherein, the slotted plate is located at the top of the contact mechanism and the finger contact mechanism, the first side plates and the second side plates are both connected to the bottom of the slotted plate, the two first side plates and the slotted plate together form the first retaining groove, and the two second side plates and the slotted plate together form the second retaining groove.

[0010] Preferably, the contact mechanism includes a contact horizontal swing arm and a contact body, the contact body being connected to the cantilever end of the contact horizontal swing arm by a first bolt; the contact finger mechanism includes a contact finger horizontal swing arm and a contact finger body, the contact finger body being connected to the cantilever end of the contact finger horizontal swing arm by a second bolt and matching the contact body;

[0011] The first side plate abuts against the end face of the contact body away from the horizontal swing arm of the contact finger on the end face of the contact body near the horizontal swing arm of the contact finger, and the second side plate abuts against the second bolt on the end face of the contact body near the horizontal swing arm of the contact.

[0012] Preferably, the top surface of the slot plate has a bolt hole for the bolt to pass through, and a third bolt passes through the bolt hole and abuts against the top of the contact horizontal swing arm to prevent the assembly protection device from moving in the vertical direction.

[0013] Preferably, a handle is provided on the top of the slot plate, and the handle is located on the side of the bolt hole near the finger mechanism.

[0014] Preferably, both the contact horizontal swing arm and the contact finger horizontal swing arm are cuboid in shape, the first side plate and the second side plate are both vertical plates, the inner wall of the first side plate is in contact with the wall of the contact horizontal swing arm, and the inner wall of the second side plate is in contact with the wall of the contact finger horizontal swing arm.

[0015] Preferably, there are two bolt holes, which are arranged side by side along the width of the groove plate.

[0016] Preferably, the ratio of the vertical dimension of the first side plate to the vertical dimension of the contact horizontal swing arm is set between 1 / 3 and 1 / 2.

[0017] Preferably, the first side plate and / or the second side plate are integrally formed with the groove plate.

[0018] Preferably, the handle and the groove plate are integrally formed.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention provides a horizontal high-voltage disconnecting switch, including a disconnecting switch body and an assembly protection device. The assembly protection device is snapped onto the disconnecting switch body. The disconnecting switch body includes a contact mechanism and a contact finger mechanism. The assembly protection device has a first slot matching the contact mechanism and a second slot matching the contact finger mechanism. The assembly protection device is snapped onto the contact mechanism through the first slot and onto the contact finger mechanism through the second slot, thereby preventing the contact mechanism and the contact finger mechanism from opening in the horizontal direction. This application, through the assembly protection device, enables the high-voltage disconnecting switch to be safely installed during the assembly and commissioning process, solves the problem of significant safety hazards during the assembly and commissioning of high-voltage disconnecting switches, reduces production costs, and improves assembly efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the assembly protection device in the working state according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the assembly protection device after it has been removed, according to one embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the disconnecting switch body in a balanced closing state according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the disconnecting switch body in the external force tripping state according to one embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the disconnecting switch body in the open state according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the assembly protection device in one embodiment of the present invention.

[0028] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0029] Explanation of icon numbers:

[0030] 10. Disconnecting switch body; 110. Contact mechanism; 111. Contact horizontal swing arm; 112. Contact body; 113. First bolt; 120. Contact finger mechanism; 121. Contact finger horizontal swing arm; 122. Contact finger body; 123. Second bolt; 20. Assembly protection device; 210. Slot plate; 211. Bolt hole; 220. First side plate; 230. Second side plate; 240. First slot; 250. Third bolt; 260. Handle. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0035] Please see Figures 1 to 6 A horizontal high-voltage disconnecting switch according to one embodiment of the present invention includes a disconnecting switch body 10 and an assembly protection device 20, wherein the assembly protection device 20 is snapped onto the disconnecting switch body 10; wherein,

[0036] The disconnector switch body 10 includes a contact mechanism 110 and a contact finger mechanism 120. It is understood that in a horizontal high-voltage disconnector switch, such as the GW4D high-voltage disconnector switch, the contact mechanism 110 and the contact finger mechanism 120 have an open state and a closed state. In the open position, there is an insulation distance between the contacts that meets the specified requirements and a clear disconnection mark. In the closed position, it can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time. This part is a technical content well known to those skilled in the art and will not be described in detail here.

[0037] The assembly protection device 20 has a first slot 240 that matches the contact mechanism 110 and a second slot (not shown) that matches the finger mechanism 120. The assembly protection device 20 is engaged with the contact mechanism 110 through the first slot 240 and with the finger mechanism 120 through the second slot to prevent the contact mechanism 110 and the finger mechanism 120 from opening in the horizontal direction.

[0038] In this embodiment, when it is necessary to limit and maintain the closed state of the disconnecting switch body 10, the operator will attach the first slot 240 of the mounting protection device 20 to the contact mechanism 110 and the second slot of the mounting protection device 20 to the contact finger mechanism 120. Since the mounting protection device 20 is simultaneously attached to the contact mechanism 110 and the contact finger mechanism 120, and since the contact mechanism 110 and the contact finger mechanism 120 are simultaneously limited in the horizontal movement direction, it is possible to prevent the contact finger mechanism 120 and the contact mechanism 110 of the disconnecting switch body 10 from suddenly tripping or tripping due to local external force, thereby injuring the workers.

[0039] As a preferred embodiment, please refer to the appendix for details. Figure 6 The assembly protection device 20 includes a downward-opening slot plate 210, two first side plates 220 connected opposite to each other on both sides of the slot plate 210, and two second side plates 230 connected opposite to each other on both sides of the slot plate 210; wherein, the slot plate 210 is located on top of the contact mechanism 110 and the contact finger mechanism 120, the first side plates 220 and the second side plates 230 are both connected to the bottom of the slot plate 210, the two first side plates 220 and the slot plate 210 together form the first slot 240, and the two second side plates 230 and the slot plate 210 together form the second slot.

[0040] For a preferred implementation, please refer to the appendix. Figures 3 to 5The contact mechanism 110 includes a horizontal contact swing arm 111 and a contact body 112. The contact body 112 is connected to the cantilever end (i.e., the end position) of the horizontal contact swing arm 111 by a first bolt 113. The finger mechanism 120 includes a horizontal finger swing arm 121 and a finger body 122. The finger body 122 is connected to the cantilever end of the horizontal finger swing arm 121 by a second bolt 123 and matches the contact body 112.

[0041] The first side plate 220 abuts against the end face of the contact body 112 away from the horizontal swing arm 121 near the contact finger, and the second side plate 230 abuts against the second bolt 123 near the end face of the horizontal swing arm 111 near the contact finger.

[0042] Specifically, when it is necessary to limit and maintain the closed state of the disconnecting switch, the operator engages the first slot 240 of the assembly protection device 20 on the contact horizontal swing arm 111 and the second slot of the assembly protection device 20 on the contact finger horizontal swing arm 121. Furthermore, the first side plate 220 abuts against the end face of the contact body 112 away from the contact finger horizontal swing arm 121 near the end face of the contact body 112, and the second side plate 230 abuts against the second bolt 123 near the end face of the contact horizontal swing arm 111 near the end face of the contact finger horizontal swing arm 111. This achieves the limitation of the assembly protection device 20 along the length direction of the slot plate 210, so that the assembly protection device 20 can be maintained simultaneously engaged on the contact mechanism 110 and the contact finger mechanism 120, preventing the disconnecting switch body 10 from automatically opening and injuring workers during assembly and debugging.

[0043] In another preferred embodiment, the top surface of the slot plate 210 has a bolt hole 211 for bolts to pass through. A third bolt 250 passes through the bolt hole 211 and abuts against the top of the contact horizontal swing arm 111 to prevent the assembly protection device 20 from moving vertically. Specifically, after the third bolt 250 passes through the bolt hole 211 and abuts against the top of the contact swing arm, the slot plate 210 can be locked to the top of the contact horizontal swing arm 111, which can effectively prevent the assembly protection device 20 from moving vertically and also prevent the contact finger mechanism 120 and the contact mechanism 110 from tripping in another direction. At the same time, since the assembly protection device 20 is firmly connected to the disconnecting switch body 10 at this time, damage can be reduced if the switch tipps over due to a deviation in its center of gravity.

[0044] As a specific example, there are two bolt holes 211, which are arranged side by side along the width direction of the groove plate 210. The number of bolt holes 211 can be set according to actual needs, including but not limited to two. In other embodiments, the assembly protection device 20 can also be limited in height by other connecting mechanisms, such as screws or clips.

[0045] Furthermore, a handle 260 is provided on the top of the groove plate 210, and the handle 260 is located on the side of the bolt hole 211 near the finger-operating mechanism 120. The handle 260 facilitates operation by the operator, who can operate it with only one hand, making it flexible and convenient.

[0046] As a specific example, both the contact horizontal swing arm 111 and the contact finger horizontal swing arm 121 are cuboid in shape, the first side plate 220 and the second side plate 230 are both vertical plates, the inner wall of the first side plate 220 is in contact with the wall of the contact horizontal swing arm 111, and the inner wall of the second side plate 230 is in contact with the wall of the contact finger horizontal swing arm 121.

[0047] Furthermore, the ratio of the vertical dimension of the first side plate 220 to the vertical dimension of the contact horizontal swing arm 111 is set between 1 / 3 and 1 / 2. Maintaining a proper fit between the vertical dimensions of the first side plate 220 and the contact horizontal swing arm 111 ensures that the assembly protection device 20 prevents disconnection between the contact mechanism 110 and the contact finger mechanism 120 during operation, thereby improving the safety of the high-voltage disconnector during assembly and commissioning.

[0048] Furthermore, the first side plate 220 and / or the second side plate 230 are integrally formed with the groove plate 210. In one specific example, both the first side plate 220 and the second side plate 230 are integrally formed with the groove plate 210. In other embodiments, the first side plate 220 and the second side plate 230 may also be detachably connected to the groove plate 210.

[0049] Furthermore, the handle 260 and the groove plate 210 are integrally formed. In other embodiments, the handle 260 and the groove plate 210 can also be detachably connected, for example, by using screws, which can be selected by those skilled in the art as needed.

[0050] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A horizontal high-voltage disconnector, characterized in that, It includes a disconnector switch body and an assembly protection device, wherein the assembly protection device is snapped onto the disconnector switch body; wherein, The disconnector switch body includes a contact mechanism and a contact finger mechanism; The assembly protection device has a first slot that matches the contact mechanism and a second slot that matches the finger mechanism. The assembly protection device is engaged with the contact mechanism through the first slot and with the finger mechanism through the second slot to prevent the contact mechanism and the finger mechanism from opening in the horizontal direction.

2. The horizontal high-voltage disconnector according to claim 1, characterized in that, The assembly protection device includes a downward-opening slotted plate, two first side plates connected opposite to each other on both sides of the slotted plate, and two second side plates connected opposite to each other on both sides of the slotted plate; wherein, the slotted plate is located at the top of the contact mechanism and the finger contact mechanism, the first side plates and the second side plates are both connected to the bottom of the slotted plate, the two first side plates and the slotted plate together form the first slot, and the two second side plates and the slotted plate together form the second slot.

3. The horizontal high-voltage disconnector according to claim 2, characterized in that, The contact mechanism includes a horizontal swing arm and a contact body, the contact body being connected to the cantilever end of the horizontal swing arm by a first bolt; the finger mechanism includes a horizontal swing arm and a finger body, the finger body being connected to the cantilever end of the horizontal swing arm by a second bolt and matching the contact body. The first side plate abuts against the end face of the contact body away from the horizontal swing arm of the contact finger on the end face of the contact body near the horizontal swing arm of the contact finger, and the second side plate abuts against the second bolt on the end face of the contact body near the horizontal swing arm of the contact.

4. The horizontal high-voltage disconnector according to claim 3, characterized in that, The top surface of the slot plate has a bolt hole for the bolt to pass through. A third bolt passes through the bolt hole and abuts against the top of the horizontal swing arm of the contact, so as to prevent the assembly protection device from moving in the vertical direction.

5. The horizontal high-voltage disconnector according to claim 4, characterized in that, A handle is provided on the top of the slot plate, and the handle is located on the side of the bolt hole near the finger mechanism.

6. The horizontal high-voltage disconnector according to claim 3, characterized in that, Both the contact horizontal swing arm and the contact finger horizontal swing arm are rectangular parallelepipeds. The first side plate and the second side plate are both vertical plates. The inner wall of the first side plate is in contact with the wall of the contact horizontal swing arm, and the inner wall of the second side plate is in contact with the wall of the contact finger horizontal swing arm.

7. The horizontal high-voltage disconnector according to claim 4, characterized in that, The number of bolt holes is two, and the two bolt holes are arranged side by side along the width direction of the groove plate.

8. The horizontal high-voltage disconnector according to claim 6, characterized in that, The ratio of the vertical dimension of the first side plate to the vertical dimension of the contact horizontal swing arm is set between 1 / 3 and 1 / 2.

9. The horizontal high-voltage disconnector according to claim 2, characterized in that, The first side plate and / or the second side plate are integrally formed with the groove plate.

10. The horizontal high-voltage disconnector according to claim 5, characterized in that, The handle and the groove plate are integrally formed.

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