An anticorrosion box-type substation detachable protective cover

Abstract

The present application relates to the technical fields of electrical equipment protection, in particular to a detachable protective cover of an anticorrosion box-type substation, comprising a box-type substation, a top cover and side guardrails, the top cover is located directly above the box-type substation, the side guardrails are located around the box-type substation, the side wall of the top cover is provided with a lock seat, the top of the side guardrail is provided with a plug, a mounting hole matched with the plug is vertically arranged on the lock seat, a locking assembly is arranged on the lock seat, and the locking assembly is matched with the plug, the locking assembly is automatically triggered to lock after the plug is completely inserted into the mounting hole, rigid fixation can be completed without additional manual operation, the connection reliability is ensured, and the loosening hidden danger caused by uneven bolt torque or missed tightening is avoided, meanwhile, the locking state can be quickly released by operating the locking assembly, the disassembly of the side guardrail is also convenient and efficient, and the time cost of disassembling the guardrail during later maintenance is reduced.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment protection technology, specifically a detachable protective cover for a corrosion-resistant box-type substation. Background Technology

[0002] Prefabricated substations, as compact and complete power distribution units, are widely used in urban power distribution networks, industrial parks, residential communities, and outdoor temporary power supply sites due to their advantages such as small footprint, short construction period, and flexible layout. Since prefabricated substations are typically installed outdoors, they are subject to long-term exposure to sunlight, rain, wind, sand, and industrial atmospheres. The corrosion resistance of their casing and internal equipment directly affects the service life and power supply reliability. Therefore, existing technologies typically include protective covers on the exterior of prefabricated substations to provide shade, rain protection, dust prevention, and slow down casing corrosion.

[0003] Currently, most common prefabricated substation protective covers adopt either an integral welded structure or a bolt-fixed structure. While integral welded protective covers offer high structural strength, they cannot be disassembled once welded, occupying significant space during transportation and causing considerable inconvenience for long-distance transport and on-site hoisting. Furthermore, when localized corrosion or damage occurs, the entire cover often requires repair or even replacement, resulting in high maintenance costs. Bolted protective covers allow for some degree of disassembly and assembly, but installation requires tightening numerous bolts individually, leading to time-consuming and inefficient disassembly and assembly. Additionally, bolted connections are prone to loosening under outdoor vibration, posing a safety hazard. Moreover, the bolts and connecting holes, constantly exposed to humid air, easily become weak points for corrosion initiation, further affecting the overall corrosion resistance of the protective cover.

[0004] To address the aforementioned issues, some design ideas for detachable protective covers have emerged in existing technologies. For example, some solutions use hooks or slots to connect the side panels and top cover for detachment. However, these structures often require manual alignment of multiple connection points, making the installation process cumbersome and demanding a high level of operator skill. Furthermore, some detachable structures suffer from insufficient connection strength, making them prone to loosening and abnormal noises under strong winds or vibration conditions, thus affecting the long-term reliability of the protective cover. Summary of the Invention

[0005] The purpose of this invention is to provide a detachable protective cover for a corrosion-resistant box-type substation to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A detachable protective cover for a corrosion-resistant prefabricated substation includes a prefabricated substation, a top cover, and side railings. The top cover is located directly above the prefabricated substation, and the side railings are located around the prefabricated substation.

[0008] The top cover is provided with a lock seat on its side wall, and the top of the side guardrail is provided with a plug. The lock seat is provided with a vertical mounting hole that matches the plug, and the plug can be inserted into the mounting hole in the vertical direction.

[0009] The lock base is provided with a locking component, which cooperates with the plug. When the plug is fully inserted into the mounting hole and reaches the preset position, the locking component is automatically triggered and quickly locks the plug in the mounting hole, realizing a rigid fixed connection between the lock base and the plug. At the same time, by operating the locking component, the locking of the plug can be released, allowing the side railing and the top cover to be quickly disassembled.

[0010] The corrosion-resistant prefabricated substation with removable protective cover as described above:

[0011] The locking assembly includes a slider and a spring, wherein the slider is slidably disposed within the mounting hole;

[0012] The first spring is installed in the mounting hole, and its two ends abut against the slider and the mounting hole respectively, so as to drive the slider to always have a tendency to move towards the opening of the mounting hole. During the process of the insert block being inserted into the mounting hole, the slider will be pushed and the first spring will be further compressed.

[0013] The corrosion-resistant prefabricated substation with removable protective cover as described above:

[0014] The lock base has a cavity inside in a direction perpendicular to the mounting hole, and the cavity is connected to the mounting hole;

[0015] A pin is slidably disposed inside the cavity, and a pin hole is provided inside the insert block.

[0016] The corrosion-resistant prefabricated substation with removable protective cover as described above:

[0017] The slider is provided with a trapezoidal groove, the outer wall of the pin is provided with a limit ring, and the cavity is provided with a second spring.

[0018] The two ends of the second spring abut against the limiting ring and the cavity respectively, so that one end of the pin is always inserted into the trapezoidal groove when no external force is applied.

[0019] The corrosion-resistant prefabricated substation with removable protective cover as described above:

[0020] One end of the pin abuts against the straight surface of the trapezoidal groove to overcome the elastic force of the first spring and prevent the slider from sliding out of the mounting hole.

[0021] The corrosion-resistant prefabricated substation with removable protective cover as described above:

[0022] The other end of the pin is provided with a disc. When the insert block is inserted into the mounting hole and the slider is pushed, during the movement of the slider, one end of the pin will retract into the cavity under the push of the inclined surface of the trapezoidal groove.

[0023] When the insert is fully inserted, the pin hole is aligned with one end of the pin shaft. At this time, under the reset action of the second spring, one end of the pin shaft is inserted into the pin hole.

[0024] The corrosion-resistant prefabricated substation with removable protective cover as described above:

[0025] The locking assembly further includes a lead screw and a movable plate. One end of the lead screw is rotatably connected to the lock seat, and the movable plate is slidably engaged with the pin and abuts against the disc.

[0026] When the movable plate moves away from the mounting hole, the disc will cause one end of the pin to move out of the pin hole under the action of the movable plate.

[0027] The corrosion-resistant prefabricated substation with removable protective cover as described above:

[0028] The movable plate is provided with a threaded sleeve, which is threadedly engaged with the lead screw, and a knob is coaxially provided at the other end of the lead screw.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] The vertical insertion of the plug and the mounting hole replaces the traditional bolt connection or welding fixing method. The side guardrail and the top cover can be quickly aligned and assembled without any tools, which improves the efficiency of on-site installation. It is especially suitable for outdoor construction scenarios with multiple positions and large quantities.

[0031] The locking component automatically triggers locking after the plug is fully inserted into the mounting hole, achieving rigid fixation without additional manual operation. This ensures connection reliability and avoids the risk of loosening due to uneven bolt torque or missed tightening. At the same time, the locking component can be quickly released, making the disassembly of the side railing equally convenient and efficient, reducing the time cost of disassembling the railing during later maintenance and repair.

[0032] The side rails can be quickly separated from the top cover, allowing the top cover and side rails to be packaged separately during transportation, saving transportation space and reducing logistics costs. At the same time, if a single side rail or top cover is partially damaged, the corresponding part can be replaced directly without scrapping the whole thing, effectively extending the service life of the entire protective cover. Attached Figure Description

[0033] Figure 1 A schematic diagram of the overall structure of the detachable protective cover for the corrosion-resistant prefabricated substation.

[0034] Figure 2 A cross-sectional view of the top cover of a removable protective cover for a corrosion-resistant prefabricated substation.

[0035] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0036] Figure 4 A schematic diagram showing the disassembly of the top cover, side railings, lock seat, and plug block in the detachable protective cover of the corrosion-resistant prefabricated substation.

[0037] Figure 5 A cross-sectional view of the lock seat in the detachable protective cover of the corrosion-resistant box-type substation.

[0038] Figure 6 A cross-sectional view of the lock seat, insert, and slider in the detachable protective cover of the corrosion-resistant prefabricated substation.

[0039] Figure 7 A schematic diagram showing the disassembly of the lock seat and plug block in the detachable protective cover of the corrosion-resistant box-type substation.

[0040] In the diagram: 1. Box-type substation; 2. Top cover; 3. Side guardrail; 4. Lock seat; 401. Mounting hole; 402. Cavity; 5. Insert block; 501. Pin hole; 6. Sliding block; 601. Trapezoidal groove; 7. Spring No. 1; 8. Pin shaft; 9. Limit ring; 10. Spring No. 2; 11. Disc; 12. Lead screw; 13. Moving plate; 14. Threaded sleeve; 15. Knob. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] Please see Figure 1-7 As an embodiment of the present invention, a detachable protective cover for a corrosion-resistant prefabricated substation includes a prefabricated substation 1, a top cover 2, and side guardrails 3. The top cover 2 is located directly above the prefabricated substation 1, and the side guardrails 3 are located around the prefabricated substation 1.

[0043] The top cover 2 is provided with a lock seat 4 on its side wall, and the side guardrail 3 is provided with a plug 5 on its top. The lock seat 4 is provided with a vertical mounting hole 401 that is adapted to the plug 5, and the plug 5 can be inserted into the mounting hole 401 in the vertical direction.

[0044] The lock base 4 is provided with a locking component, which cooperates with the plug 5. When the plug 5 is fully inserted into the mounting hole 401 and reaches the preset position, the locking component is automatically triggered and quickly locks the plug 5 in the mounting hole 401, realizing a rigid fixed connection between the lock base 4 and the plug 5. At the same time, by operating the locking component, the locking of the plug 5 can be released, allowing the side guardrail 3 and the top cover 2 to be quickly disassembled.

[0045] In this embodiment, the prefabricated substation 1 serves as the core body to be protected. A top cover 2 is installed directly above it to form a top shielding protection, and side guardrails 3 are arranged around it to form a circumferential enclosure protection. The top cover 2 and the side guardrails 3 together constitute a complete protective cover system for the prefabricated substation 1. The two are connected to each other in spatial position. The side wall of the top cover 2 is adjacent to the top of the side guardrails 3, providing a structural basis for the mechanical connection between the two.

[0046] The top cover 2 is provided with a lock seat 4 on its side wall and a plug 5 is provided on the top of the side rail 3. The lock seat 4 and the plug 5 form a pair of mating connection units. The lock seat 4 has a vertically opened mounting hole 401. The inner contour of the mounting hole 401 matches the outer contour of the plug 5, so that the plug 5 can be inserted into the mounting hole 401 from bottom to top in the vertical direction. This vertically corresponding arrangement of the lock seat 4 and the plug 5 determines that the connection between the top cover 2 and the side rail 3 is a vertically inserted mating.

[0047] When assembling the protective cover, move the side guardrail 3 to the corresponding position on the side wall of the top cover 2, so that the insert 5 is aligned with the mounting hole 401 on the lock seat 4. Then push the side guardrail 3 upward in the vertical direction, and the insert 5 enters the mounting hole 401. As the insert 5 continues to move upward, when it is fully inserted into the mounting hole 401 and reaches the preset locking position, the locking component on the lock seat 4 is automatically triggered. This triggering process does not require any additional manual operation of the locking component. It is entirely triggered by the mechanical action of the insert 5 reaching the preset position, thus realizing the linkage between the assembly action and the locking action.

[0048] After the locking component is triggered, it quickly applies a locking constraint to the plug 5, firmly locking the plug 5 in the mounting hole 401, thereby preventing the plug 5 from moving vertically or swaying horizontally relative to the lock seat 4. Thus, a rigid fixed connection is formed between the lock seat 4 and the plug 5, thereby establishing a stable and reliable mechanical connection between the top cover 2 and the side guardrail 3, ensuring that the overall structure of the protective cover remains stable when subjected to external forces such as wind load and vibration.

[0049] When maintenance, repair, or replacement of parts of the protective cover is required, the operator actively operates the locking component to release the locking constraint on the insert 5. After the locking is released, the insert 5 regains its ability to move freely in the mounting hole 401. At this time, the side guardrail 3 is pulled down vertically, and the insert 5 can be pulled out from the mounting hole 401. The connection between the side guardrail 3 and the top cover 2 is then disconnected, realizing the quick separation and disassembly of the two.

[0050] As a further embodiment of the present invention, the locking assembly includes a slider 6 and a first spring 7, wherein the slider 6 is slidably disposed within the mounting hole 401;

[0051] The first spring 7 is installed in the mounting hole 401. The two ends of the first spring 7 abut against the slider 6 and the mounting hole 401 respectively, so as to drive the slider 6 to always have the tendency to move towards the opening of the mounting hole 401. During the process of the insert 5 being inserted into the mounting hole 401, the slider 6 will be pushed and the first spring 7 will be further compressed.

[0052] The lock base 4 has a cavity 402 inside in a direction perpendicular to the mounting hole 401, and the cavity 402 is connected to the mounting hole 401;

[0053] A pin 8 is slidably disposed inside the cavity 402, and a pin hole 501 is provided inside the insert block 5;

[0054] The slider 6 is provided with a trapezoidal groove 601, the outer wall of the pin 8 is provided with a limit ring 9, and the cavity 402 is provided with a second spring 10.

[0055] The two ends of the second spring 10 abut against the limiting ring 9 and the cavity 402 respectively, so that one end of the pin 8 is always inserted into the trapezoidal groove 601 when no external force is applied.

[0056] One end of the pin 8 abuts against the straight surface of the trapezoidal groove 601 to overcome the elastic force of the first spring 7 and prevent the slider 6 from sliding out of the mounting hole 401;

[0057] The other end of the pin 8 is provided with a disc 11. When the insert 5 is inserted into the mounting hole 401 and pushes the slider 6, during the movement of the slider 6, one end of the pin 8 will retract into the cavity 402 under the push of the inclined surface of the trapezoidal groove 601.

[0058] When the insert 5 is fully inserted, the pin hole 501 is aligned with one end of the pin shaft 8. At this time, under the reset action of the second spring 10, one end of the pin shaft 8 is inserted into the pin hole 501.

[0059] In this embodiment, please refer to Figure 3 , Figure 6 and Figure 7 In the initial state, spring 7 is installed in the mounting hole 401, with its two ends abutting against the top surface of the slider 6 and the mounting hole 401 respectively, continuously applying a spring force to the slider 6 in the direction of the opening of the mounting hole 401, so that the slider 6 always has a tendency to move outward. At the same time, under the action of spring 10, one end of the pin 8 is kept inserted into the trapezoidal groove 601 on the slider 6. This end of the pin 8 abuts against the straight surface of the trapezoidal groove 601, forming a constraint on the slider 6, so that the slider 6 is stably stopped in the initial position in the mounting hole 401 and will not slide out from the opening of the mounting hole 401.

[0060] When assembling the protective cover, the insert 5 is inserted vertically into the mounting hole 401. Since the slider 6 occupies the space near the opening of the mounting hole 401 in the initial state, the end of the insert 5 first contacts the slider 6 and applies an upward pushing force to the slider 6. Under the action of this pushing force, the slider 6 overcomes the elastic force of the first spring 7 and moves towards the top of the mounting hole 401. The first spring 7 is then further compressed, and its elastic potential energy gradually increases.

[0061] During the movement of slider 6, the position of the trapezoidal groove 601 opened on it changes synchronously. Since one end of pin 8 is always inserted into trapezoidal groove 601 and the sliding direction of pin 8 is perpendicular to the axis of mounting hole 401, when trapezoidal groove 601 moves with slider 6, the contact position between the end of pin 8 and the groove wall of trapezoidal groove 601 changes. Specifically, the end of pin 8 gradually transitions from the straight surface area of ​​trapezoidal groove 601 to the inclined surface area. The inclined surface of trapezoidal groove 601 exerts a lateral pushing force on the end of pin 8. The direction of this pushing force is towards the inside of cavity 402, driving pin 8 to overcome the elastic force of spring 10 and retract into cavity 402. Spring 10 is compressed in this process.

[0062] As the insert 5 continues to move upward, when the insert 5 is fully inserted into the mounting hole 401 and reaches the preset locking position, the pin hole 501 inside the insert 5 moves to a position that is aligned with the end of the pin 8. At this time, the inclined pushing effect of the trapezoidal groove 601 on the pin 8 disappears, and the end of the pin 8 is no longer subjected to the lateral force pointing into the cavity 402. Under the action of the reset elastic force of the second spring 10, the pin 8 quickly extends towards the mounting hole 401, and one end passes through the side wall of the mounting hole 401 and is inserted into the pin hole 501 of the insert 5. The cooperation between the pin 8 and the pin hole 501 constrains the insert 5 relative to the lock seat 4 in both the vertical and horizontal directions, preventing displacement, thereby completing the automatic locking of the insert 5 and realizing the rigid fixed connection between the lock seat 4 and the insert 5.

[0063] As a further embodiment of the present invention, the locking assembly further includes a lead screw 12 and a movable plate 13. One end of the lead screw 12 is rotatably connected to the lock seat 4, and the movable plate 13 is slidably engaged with the pin 8 and abuts against the disc 11.

[0064] When the movable plate 13 moves away from the mounting hole 401, the disc 11 will be driven by the movable plate 13 to move one end of the pin 8 out of the pin hole 501.

[0065] The movable plate 13 is provided with a threaded sleeve 14, which is threadedly engaged with the lead screw 12. A knob 15 is coaxially provided at the other end of the lead screw 12.

[0066] In this embodiment, please refer to Figure 5 and Figure 6 When the protective cover needs to be disassembled, the operator rotates the knob 15, which drives the lead screw 12 to rotate synchronously. Since the lead screw 12 and the lock seat 4 are rotatably connected, the rotational motion of the lead screw 12 is restricted to pure rotation without axial displacement. The rotational motion of the lead screw 12 is converted into the linear motion of the threaded sleeve 14 along the axis of the lead screw 12 through the threaded engagement relationship between the lead screw 12 and the threaded sleeve 14. The threaded sleeve 14 and the moving plate 13 are fixedly connected, so the linear motion of the threaded sleeve 14 is directly transmitted to the synchronous translation of the moving plate 13.

[0067] The movable plate 13 moves axially along the lead screw 12 under the action of the screw drive. Its direction of movement is determined by the rotation direction of the knob 15. When the movable plate 13 moves away from the mounting hole 401, the movable plate 13 and the disc 11 abut against each other. The movable plate 13 applies a thrust away from the cavity 402 to the disc 11. The disc 11 and the pin 8 are coaxially fixed. The thrust is transmitted to the entire pin 8 through the disc 11, causing the pin 8 to overcome the return force of the second spring 10 and retract into the cavity 402. The end of the pin 8 then gradually moves out of the pin hole 501 of the insert 5. The constraint of the pin 8 on the insert 5 is released, and the locking state is broken.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0069] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A detachable protective cover for a corrosion-resistant prefabricated substation, comprising a prefabricated substation (1), a top cover (2), and side guardrails (3), characterized in that, The top cover (2) is located directly above the box-type substation (1), and the side guardrail (3) is located around the box-type substation (1). The top cover (2) is provided with a lock seat (4) on its side wall, and the top of the side rail (3) is provided with a plug (5). The lock seat (4) is provided with a vertical mounting hole (401) that is compatible with the plug (5). The plug (5) can be inserted into the mounting hole (401) in the vertical direction. The lock seat (4) is provided with a locking component, which cooperates with the plug (5). When the plug (5) is fully inserted into the mounting hole (401) and reaches the preset position, the locking component is automatically triggered and quickly locks the plug (5) in the mounting hole (401), thereby achieving a rigid fixed connection between the lock seat (4) and the plug (5). At the same time, by operating the locking component, the locking of the plug (5) can be released, allowing the side guardrail (3) and the top cover (2) to be quickly disassembled.

2. The detachable protective cover for a corrosion-resistant box-type substation according to claim 1, characterized in that, The locking assembly includes a slider (6) and a first spring (7), wherein the slider (6) is slidably disposed within the mounting hole (401); The first spring (7) is installed in the mounting hole (401). The two ends of the first spring (7) abut against the slider (6) and the mounting hole (401) respectively, so as to drive the slider (6) to always have the tendency to move towards the opening of the mounting hole (401). During the process of the insert (5) being inserted into the mounting hole (401), the slider (6) will be pushed and the first spring (7) will be further compressed.

3. The detachable protective cover for a corrosion-resistant box-type substation according to claim 2, characterized in that, The lock base (4) has a cavity (402) inside in a direction perpendicular to the mounting hole (401), and the cavity (402) is connected to the mounting hole (401); A pin (8) is slidably disposed in the cavity (402), and a pin hole (501) is disposed inside the insert (5).

4. A detachable protective cover for a corrosion-resistant prefabricated substation according to claim 3, characterized in that, The slider (6) is provided with a trapezoidal groove (601), the outer wall of the pin (8) is provided with a limit ring (9), and the cavity (402) is provided with a second spring (10). The two ends of the second spring (10) abut against the limiting ring (9) and the cavity (402) respectively, so that one end of the pin (8) is always inserted into the trapezoidal groove (601) without the action of external force.

5. A detachable protective cover for a corrosion-resistant prefabricated substation according to claim 4, characterized in that, One end of the pin (8) abuts against the straight surface of the trapezoidal groove (601) to overcome the elastic force of the first spring (7) and prevent the slider (6) from sliding out of the mounting hole (401).

6. A detachable protective cover for a corrosion-resistant prefabricated substation according to claim 4, characterized in that, The other end of the pin (8) is provided with a disc (11). When the insert (5) is inserted into the mounting hole (401) and the slider (6) is pushed, during the movement of the slider (6), one end of the pin (8) will retract into the cavity (402) under the push of the inclined surface of the trapezoidal groove (601). When the insert (5) is fully inserted, the pin hole (501) is aligned with one end of the pin shaft (8). At this time, under the reset action of the second spring (10), one end of the pin shaft (8) is inserted into the pin hole (501).

7. A detachable protective cover for a corrosion-resistant prefabricated substation according to claim 6, characterized in that, The locking assembly also includes a lead screw (12) and a movable plate (13). One end of the lead screw (12) is rotatably connected to the lock seat (4), and the movable plate (13) is slidably engaged with the pin (8) and abuts against the disc (11). When the moving plate (13) moves away from the mounting hole (401), the disc (11) will cause one end of the pin (8) to move out of the pin hole (501) under the drive of the moving plate (13).

8. A detachable protective cover for a corrosion-resistant prefabricated substation according to claim 7, characterized in that, A threaded sleeve (14) is provided on the movable plate (13), and the threaded sleeve (14) is threadedly engaged with the lead screw (12). A knob (15) is coaxially provided at the other end of the lead screw (12).

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