Isolating switch operating mechanism box body structure

Abstract

The utility model relates to a box body structure of an isolating switch operating mechanism, which is characterized by comprising a box body, a fixed sealing plate, a first side opening door, a second side opening door and an inner locking mechanism, according to the utility model, the side door of one side face of the isolating switch operating box, which is opposite to the operating mechanism, is opened internally, so that the condition that the side door is opened from the outside and misoperation is caused is avoided; in addition, under the condition that the first side door is opened, the second side door is opened by loosening the limiting bolt and releasing the torsion of the torsion spring to realize the popping of the spring bolt piece, and under the condition that the first side door is not opened, the second side door cannot be opened from the outside, so that the safety of the second side door is improved. And the lock head on the second side-opening door is matched with the lock tongue piece in an inclined plane matching manner, so that the sealing strip in the closed state of the second side-opening door can be ensured to be in an extruded state, and the sealing, waterproof and dustproof effects of the isolating switch operating box are ensured.

Description

Technical Field

[0001] This utility model relates to the field of disconnecting switch technology, and in particular to a housing structure for a disconnecting switch operating mechanism. Background Technology

[0002] Disconnect switches are the most widely used electrical appliances in high-voltage switchgear, serving a isolating function. While their working principle and structure are relatively simple, their large usage and high reliability requirements significantly impact the design, construction, and safe operation of substations and power plants. A key characteristic of disconnect switches is their lack of arc-extinguishing capability; they can only open and close circuits when there is no load current.

[0003] Disconnect switches are typically integrated into an electrical box, forming a disconnect switch operating mechanism box, which protects the disconnect switch and prevents electric shock. In actual operation, the disconnect switch operating mechanism box has a double-door structure, with one side being a door facing the operating position and the other side being a maintenance door; this double-door design facilitates the maintenance of internal equipment; however, these common double-door structures can all be opened independently, posing a risk of misoperation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a housing structure for the operating mechanism of a disconnecting switch, which can solve the problems of safety risks and poor sealing effect of the double-door structure of a general disconnecting switch operating box, where both doors can be opened independently.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a housing structure for a disconnector switch operating mechanism, the innovation of which is: including a housing, a fixed sealing plate, a first side door, a second side door, and an internal locking mechanism;

[0006] The box body is rectangular; the fixed sealing plate includes a side sealing plate, a top sealing plate and a bottom sealing plate; the side sealing plates are a pair and are arranged perpendicularly to each other, and are fixedly connected to two adjacent sides of the box body; the top sealing plate is fixedly installed on the top of the box body; the bottom sealing plate is fixedly installed on the bottom of the box body.

[0007] The first side door and the second side door are respectively hinged to two other adjacent sides of the box; an external latch is provided between the outer edge of the first side door and the outer wall of the box, for opening the first side door from the outside of the box; an internal locking mechanism is provided between the inner edge of the second side door and the inner wall of the box, for opening the second side door from the inside of the box.

[0008] The internal locking mechanism includes a lock head and a rotating latch. The lock head is fixedly installed at the edge of the second side door. The lock head is L-shaped and forms a gap with the inner wall of the second side door to accommodate the rotating latch. The rotating latch is located on the inner side of the housing and includes a latch plate, a fixed shaft, and a limiting bolt. The latch plate is L-shaped and has a through hole at its corner. The fixed shaft is vertically mounted on the inner wall of the housing. The latch plate is nested on the fixed shaft and connected to the fixed shaft by a torsion spring. An L-shaped connecting plate is provided below the fixed shaft, and the connecting plate has a threaded hole. The limiting bolt engages with the threaded hole on the connecting plate, and the outer wall of the limiting bolt blocks the rotation path of the latch plate, keeping the rotating latch embedded in the gap between the lock head and the second side door. By rotating the limiting bolt, the latch plate is disengaged from the rotation path of the latch plate. Under the action of the torsion spring, the latch plate pops out of the gap between the lock head and the second side door, thus opening the second side door.

[0009] Furthermore, both the inner edges of the first side-opening door and the inner edges of the second side-opening door are provided with sealing strips.

[0010] Furthermore, the latch plate and the lock head are connected by an inclined guide slope to ensure that when the latch plate is engaged with the lock head, it rotates the second side door towards the inside of the box, thus ensuring the sealing effect of the second side door when it is closed.

[0011] Furthermore, reinforcing ribs are formed on the side of the housing that mates with the first side door and the side that mates with the second side door by external punching through a mold, for sealing in conjunction with the first or second side door.

[0012] The advantages of this utility model are:

[0013] 1) In this utility model, the side door of one side of the disconnect switch operating box facing the operating mechanism is designed to open internally, thus avoiding accidental operation when the side door is opened from the outside. In addition, when the first side door is open, the second side door can be opened by loosening the limiting bolt and releasing the torque of the torsion spring to make the locking tongue plate pop out. The lock head on the second side door and the locking tongue plate are engaged by a beveled engagement, which can ensure that the sealing strip of the second side door is in a compressed state when it is closed, thus ensuring the sealing, waterproof and dustproof effect of the disconnect switch operating box.

[0014] 2) In this utility model, the two side doors of the box are formed by external punching of mold to form reinforcing ribs and flanges, which ensures stable dimensional forming, beautiful surface, no welding and no leakage points; in addition, the second side door cannot be opened from the outside when the first side door is not opened; the second side door adopts an internal lock installation method, and through the cooperation of the lock head and the lock tongue, the inner sealing strip of the second side door is more tightly attached to the box body to achieve the maximum effect of waterproofing and dustproofing. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the housing structure of an isolating switch operating mechanism according to the present invention.

[0017] Figure 2 This is a top view schematic diagram of the housing structure of the disconnector switch operating mechanism of this utility model.

[0018] Figure 3 This is a partial enlarged view of the housing structure of the disconnector switch operating mechanism of this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] like Figures 1 to 3 The diagram shows a housing structure for an operating mechanism of a disconnector switch, comprising a housing 1, a fixed sealing plate 2, a first side door 3, a second side door 4, and an internal locking mechanism 5.

[0022] The box body 1 is rectangular; the fixed sealing plate 2 includes a side sealing plate, a top sealing plate and a bottom sealing plate; the side sealing plates are a pair and are arranged perpendicular to each other, and are fixedly connected to two adjacent sides of the box body; the top sealing plate is fixedly set on the top of the box body 1; the bottom sealing plate is fixedly set on the bottom of the box body 1.

[0023] The first side door 3 and the second side door 4 are respectively hinged to the other two adjacent sides of the box body 1; an external latch is provided between the outer edge of the first side door 3 and the outer wall of the box body 1, for the first side door 3 to be opened from the outside of the box body 1; an internal locking mechanism 5 is provided between the inner edge of the second side door 4 and the inner wall of the box body 1, for the second side door 4 to be opened from the inside of the box body 1.

[0024] The internal locking mechanism 5 includes a lock head 51 and a rotating latch 52. The lock head 51 is fixedly installed at the edge of the second side door 4. The lock head 51 is L-shaped and forms a gap with the inner wall of the second side door 4 to accommodate the rotating latch 52. The rotating latch 52 is located on the inner side of the housing 1 and includes a latch plate 521, a fixed shaft 522, and a limiting bolt 523. The latch plate 521 has an L-shaped structure and a through hole is provided at the corner of the latch plate 521. The fixed shaft 522 is vertically installed on the inner wall of the housing 1. The latch plate 521 is nested on the fixed shaft 522 and connected by a torsion spring. The lock tongue 521 and the fixed shaft 522 are provided below the fixed shaft 522. The connecting plate 53 is provided with a threaded hole. The limiting bolt 523 cooperates with the threaded hole on the connecting plate 53. The outer wall of the limiting bolt 523 blocks the rotation path of the lock tongue 521, keeping the rotating lock tongue 521 embedded in the gap between the lock head 51 and the second side door 4. By rotating the limiting bolt 523, the lock tongue 521 is disengaged from the rotation path of the lock tongue 521. Under the action of the torsion spring, the lock tongue 521 pops out of the gap between the lock head 51 and the second side door 4, thereby opening the second side door 4.

[0025] Sealing strips are provided on the inner edges of both the first side door 3 and the second side door 4.

[0026] The latch plate 521 and the lock head 51 are connected by an inclined guide slope to ensure that when the latch plate is engaged with the lock head, it rotates the second side door 4 towards the inside of the box, thus ensuring the sealing effect of the second side door 4 in the closed state.

[0027] The side of the housing 1 that mates with the first side door 3 and the side that mates with the second side door 4 are formed with reinforcing ribs by external punching through a mold. These ribs are used to seal the housing with the first or second side door, thereby improving the dustproof and waterproof effect.

[0028] The working principle of this utility model is as follows: One of the side doors of the disconnector control box, facing the operating mechanism, is designed to open internally, preventing accidental opening from the outside. Furthermore, when the first side door is open, the second side door opens by loosening the limiting bolt, releasing the torque of the torsion spring and causing the locking tongue to pop out. The second side door cannot be opened from the outside when the first side door is closed. The lock head and locking tongue on the second side door are engaged with a beveled surface, ensuring that the sealing strip of the closed second side door is compressed, thus guaranteeing the sealing, waterproofing, and dustproofing effect of the disconnector control box.

[0029] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. An isolating switch operating mechanism housing structure, characterized by: Includes the enclosure, fixed sealing plate, first side door, second side door, and internal locking mechanism; The box body is rectangular; the fixed sealing plate includes a side sealing plate, a top sealing plate and a bottom sealing plate; the side sealing plates are a pair and are arranged perpendicularly to each other, and are fixedly connected to two adjacent sides of the box body; the top sealing plate is fixedly installed on the top of the box body; the bottom sealing plate is fixedly installed on the bottom of the box body. The first side door and the second side door are respectively hinged to two other adjacent sides of the box; an external latch is provided between the outer edge of the first side door and the outer wall of the box, for opening the first side door from the outside of the box; an internal locking mechanism is provided between the inner edge of the second side door and the inner wall of the box, for opening the second side door from the inside of the box. The internal locking mechanism includes a lock head and a rotating latch. The lock head is fixedly installed at the edge of the second side door. The lock head is L-shaped and forms a gap with the inner wall of the second side door to accommodate the rotating latch. The rotating latch is located on the inner side of the housing and includes a latch plate, a fixed shaft, and a limiting bolt. The latch plate is L-shaped and has a through hole at its corner. The fixed shaft is vertically mounted on the inner wall of the housing. The latch plate is nested on the fixed shaft and connected to the fixed shaft by a torsion spring. An L-shaped connecting plate is provided below the fixed shaft, and the connecting plate has a threaded hole. The limiting bolt engages with the threaded hole on the connecting plate, and the outer wall of the limiting bolt blocks the rotation path of the latch plate, keeping the rotating latch embedded in the gap between the lock head and the second side door. By rotating the limiting bolt, the latch plate is disengaged from the rotation path of the latch plate. Under the action of the torsion spring, the latch plate pops out of the gap between the lock head and the second side door, thus opening the second side door.

2. The housing structure of the disconnector operating mechanism according to claim 1, characterized in that: Both the inner edge of the first side-opening door and the inner edge of the second side-opening door are provided with sealing strips.

3. The housing structure of the disconnector operating mechanism according to claim 1, characterized in that: The latch plate and the lock head are connected by an inclined guide slope to ensure that when the latch plate is engaged with the lock head, it rotates the second side door towards the inside of the box, thus ensuring the sealing effect of the second side door when it is closed.

4. The isolating switch operating mechanism housing structure according to claim 1, characterized by: The side of the housing that mates with the first side door and the side that mates with the second side door are formed with reinforcing ribs by external punching through a mold, for sealing with the first or second side door.

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